Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a preassembled quick connector and a special test box for cables, which are accurate in detection and convenient to operate.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a dedicated test box of pre-installation formula quick connector, cable, includes the shell, the shell includes box and case lid, the upside of box is open structure, one side of case lid articulates in one side border of box open structure, and the upset is opened or is covered open structure, the integrative fender edge that inwards extends that is equipped with on the position is followed to the mouth of box open structure, when the case lid covers open structure, the case lid is taken on keeping off along, the case lid is equipped with the lock core for with the articulated opposite side of box, the lock core runs through the case lid setting, the lock core sets up in the position of one side in the case lid and is equipped with the pivot, fixedly connected with rotary rod in the pivot, this rotary rod and pivot mutually perpendicular, and its one end and pivot fixed connection, the other end dorsad pivot extend, the lockhole drives the pivot rotatory, changes over the one end of rotary rod dorsad pivot to keep off along the downside and keep off along mutual conflict, be equipped with power connection, cable socket, pilot lamp, cable three-phase connector and change over switch, cable coupling and live wire, the live wire and the wire connect and the live wire draw one-wire to be connected in series with each other between live wire and live wire connector, live wire connector and live wire connector.
As a further improvement of the invention, the cable socket comprises two 4-core sockets, two 10-core sockets and one 6-core socket, the change-over switch comprises 4-way change-over switches, 6-way change-over switches and 10-way change-over switches, the indicator lamps comprise 4-core indicator lamp groups, 6-core indicator lamp groups and 10-core indicator lamp groups, the 4-way change-over switches, the 4-core indicator lamp groups and the two 4-core sockets are mutually connected in series between a zero line connector and a fire line connector, the 10-way change-over switches, the 10-core indicator lamp groups and the two 10-core sockets are mutually connected in series between the zero line connector and the fire line connector, and the 6-core change-over switches, the 6-core indicator lamp groups and the 6-core sockets as well as the cable three-phase connectors are mutually connected in series between the zero line connector and the fire line connector.
As a further improvement of the invention, 4 power-on loops are arranged in the 4-way change-over switch, each power-on loop is provided with two interfaces, the interfaces are respectively arranged on two sides of the 4-way change-over switch, one side of each interface is coupled with a fuse after being in short circuit, and then is coupled with a live wire connector, the two 4-core sockets form 4 power-on loops, the 4-core indication lamp group comprises 4 indication lamps, each 4 power-on loop in the 4-core socket is provided with two sockets, the sockets are respectively arranged on two sides of the 4-core socket, the sockets on one side are connected with the interfaces on the other side of the interface, which is in short circuit, of the 4-way change-over switch, and the sockets on the other side are connected with the zero line interfaces after being in one-to-one correspondence with the 4 indication lamps.
As a further improvement of the invention, 6 energizing circuits are arranged in the 6-way change-over switch, each energizing circuit is provided with two interfaces, the two interfaces are respectively arranged at two sides of the 6-way change-over switch, one interface is in short connection with each other and then is coupled with a fuse, the fuse is coupled with a live wire connector, 6 energizing circuits are also arranged in the 6-way change-over switch, the 6-way indicating lamp group comprises 6 indicating lamps, each 6 energizing circuit in the 6-way change-over switch is provided with two jacks, the two jacks are respectively arranged at two sides of the 6-way change-over switch, the jack at one side is in one-to-one connection with the interface at the other side of the interface which is in short connection with each other, the jack at the other side is in one-to-one connection with the zero line interface, the cable three-phase connector comprises 3 jacks at 2 cores, one jack at 2 cores is in one-to-two indicating lamps, the 3 jacks at 2 cores are respectively connected between the 6-way change-over switch, the 6-way change-over switch is also provided with an automatic loop, a 2-core C phase self-connection indicating loop and a 2-core self-connection indicating loop, and a 2-core self-phase self-connection indicating loop, and the automatic 2-phase self-connection indicating loop are respectively connected between the 2-core self-phase indicating loops and the 2-phase self-connection indicating loops.
As a further improvement of the invention, 10 power-on loops are arranged in the 10-way change-over switch, each power-on loop is provided with two interfaces, the interfaces are respectively arranged on two sides of the 10-way change-over switch, one side of each interface is coupled with a fuse after being in short circuit, and then is coupled with a live wire connector, 10 power-on loops are also arranged in the 10-core socket, the 10-core indicator lamp group comprises 10 indicator lamps, the 10 power-on loops in the 10-core socket are respectively provided with two sockets, the sockets on one side are respectively arranged on two sides of the 10-core socket, the sockets on the other side of each interface are in one-to-one correspondence with the interfaces on the other side of each interface, and the sockets on the other side of each interface are respectively connected with the zero line interfaces after being in one-to-one correspondence with the 10 indicator lamps.
As a further improvement of the present invention, the test procedure for testing 4-core cables using the above-described test chamber is as follows:
firstly, aviation plugs at two ends of a 4-core cable are inserted into two 4-core sockets on a box cover and screwed; connecting a 4-core cable between the 4-way change-over switch and the 4-core indicating lamp group; and the 4-way change-over switch and the 4-core indicating lamp group are conducted;
and secondly, connecting the live wire connector and the zero wire connector with external commercial power, rotating the 4-way change-over switch to a first electrifying loop, if the corresponding indicator lamp is on, indicating that the channel of the core of the 4-core cable is normal, and if the corresponding indicator lamp is not on, indicating that the channel of the core of the 4-core cable is faulty, continuing to rotate the 4-way change-over switch until all electrifying loops are turned over, and finishing detection.
As a further improvement of the present invention, the detection step of detecting the 6-core cable by using the test box comprises a 6-core cable main line detection step, a 6-core suspension type lap joint detection step and a 2-core cable detection step, the 2-core cable detection step comprises the following steps:
1, connecting 3 2-core cables with 3 2-core jacks in a cable three-phase joint on a box cover, wherein the 3 2-core jacks are sequentially connected with a yellow wire clamp, a green wire clamp, a red wire clamp, a black wire clamp, a blue wire clamp and a brown wire clamp respectively, and when the 3-core jacks are connected, the yellow wire clamp clamps the A-phase cable 1 end of the 2-core cable, the green wire clamp clamps the A-phase cable 2 end of the 2-core cable, the red wire clamp clamps the C-phase cable 1 end of the 2-core cable, the black wire clamp clamps the C-phase cable 2 end of the 2-core cable, the blue wire clamp clamps the N-phase cable 1 end of the 2-core cable and the N-wire cable 2 end of the 2-core cable;
2, connecting a live wire connector and a zero wire connector with external commercial power, turning the 6-way change-over switch to an automatic loop to enable the automatic loop to be conducted, if two indicator lamps corresponding to the automatic loop are on, indicating that the A-phase self-shorting structure of the 2-core cable is normal, and if one of the indicator lamps is not on, checking whether the wiring and the installation of the self-shorting of the A-phase of the 2-core cable are correct or not, and completing the self-shorting detection of the A-phase of the 2-core cable;
3, turning the 6-way change-over switch to a 2-core C-phase self-connection indication loop, so that if two indication lamps corresponding to the 2-core C-phase self-connection indication loop are on, the C-phase self-shorting structure of the 2-core cable is normal, if one of the lamps is not on, whether the wiring and the installation of the self-shorting of the 2-core cable C-phase are correct or not is checked, and the self-shorting detection of the 2-core cable C-phase is completed;
4, turning the 6-way change-over switch to a 2-core zero-sequence self-connection indication loop to enable the 2-core zero-sequence self-connection indication loop, if two indication lamps corresponding to the 2-core zero-sequence self-connection indication loop are on, indicating that an N-phase self-shorting structure of the 2-core cable is normal, if one of the lamps is not on, checking whether wiring and installation of the N-phase self-shorting of the 2-core cable are correct, and completing self-shorting detection of the N-phase of the 2-core cable, thereby completing detection of the 2-core cable;
the 6-core suspension type lap joint the detection step of (1) comprises:
(1) The lap joints of the 3 2-core cables connected with the three-phase joints of the cables are connected into A, C, N points corresponding to the 6-core suspension lap joints;
(2) Connecting a live wire connector and a zero wire connector with external commercial power, turning the 6-way change-over switch to an automatic loop, if the indicator lamps in the 6-core indicator lamp group are fully on, indicating that the 6-core suspension type lap joint is normal, and if one of the indicator lamps is not on, checking the wiring condition of the corresponding point to finish the detection of the 6-core suspension type lap joint;
the detection step of the 6-core cable main line comprises the following steps:
(1) the 6-core suspension type cable connected with 3 2-core cables the lap joint is connected with the lap joint at one end of the 6-core cable main line;
(2) the live wire connector and the zero line connector are connected with external commercial power, the 6-way change-over switch is turned to an automatic loop, if the indicator lamps in the 6-core indicator lamp group are fully on, the self-shorting structure of the 6-core cable main line is normal, if one of the indicator lamps is not on, the self-shorting condition of the corresponding point of the 6-core main line is required to be checked, and then the detection of the 6-core cable is completed.
As a further improvement of the present invention, the procedure for testing 10-core cables using the above-described test chamber is as follows:
a, respectively inserting aviation plugs at two ends of a 10-core cable into two 10-core sockets on a box cover, screwing, and connecting the 10-core cable between a 10-way change-over switch and a 10-core indicator lamp group; and the 10-way change-over switch and the 10-core indicating lamp group are conducted;
and b, connecting the live wire connector and the zero wire connector with external commercial power, rotating the 10-way change-over switch to a first power-on loop, if the corresponding indicator lamp is on, indicating that the channel of the core of the 10-core cable is normal, and if the corresponding indicator lamp is not on, indicating that the channel of the core of the 10-core cable is faulty, continuing to rotate the 10-way change-over switch until all the power-on loops are turned over, and finishing detection.
The invention has the advantages that the detection component can be effectively arranged on the box cover through the arrangement of the box body and the box cover, then the space between the box body and the box cover is utilized to provide the connecting line space between the detection component, the upper side of the box body is arranged to be in an opening structure through arranging the box cover to be hinged at one side, the problem that a plurality of cores cause detection failure when the connecting line between the detection components is required to be maintained in the prior art is solved by opening the box cover by hands, the problem that the lamp is completely easy to use, the effect of sealing can be effectively realized through arranging the blocking edge, the influence of external dust sundries into the box body is avoided, the box cover is effectively locked to the box body through the arrangement of the lock core, the rotating shaft and the rotating rod, the box cover is effectively connected with the 2-core cable through the arrangement of the cable three-phase connector, the problem that the lamp is not accurately detected due to the fact that the plurality of cores are touched when the cable connector is required to be detected in the prior art is avoided, and the fault indication can be accurately displayed through the arrangement of the change-over switch and the cable, and the fault indication can be accurately displayed through the fact that the fault indication is realized.
Detailed Description
The invention will be further described in detail with reference to examples of embodiments shown in the drawings.
Referring to fig. 1 to 5, a test box special for a preassembled quick connector and a cable in this embodiment includes a housing, the housing includes a box 1 and a box cover 2, the upper side of the box 1 is in an opening structure, one side of the box cover 2 is hinged to one side edge of the opening structure of the box 1, the opening structure is turned over to open or cover, a blocking edge 11 extending inwards is integrally provided at the opening edge position of the opening structure of the box 1, when the box cover 2 covers the opening structure, the box cover 2 is lapped on the blocking edge 11, the box cover 2 is provided with a lock core 12 relative to the other side hinged to the box 1, the lock core 12 penetrates through the box cover 2, a rotating shaft 13 is provided at the position of one side of the box cover 2, a rotating rod 14 is fixedly connected to the rotating shaft 13, one end of the rotating rod 14 is fixedly connected with the rotating shaft 13, the other end extends back to the rotating shaft 13, the lock cylinder 12 is arranged at a position on one side outside the box cover 2 and is provided with a lock hole 15 which rotates synchronously with the rotating shaft 13, when the box cover 2 is locked, the lock hole 15 drives the rotating shaft 13 to rotate, one end of the rotating rod 14, which is opposite to the rotating shaft 13, is rotated to the lower side of the blocking edge 11 and is mutually abutted against the blocking edge 11, the box cover 2 is provided with a power connector 131, a cable socket 132, an indicator lamp 133, a cable three-phase connector 134 and a change-over switch 135, the power connector 131 is coupled with an external power supply, the cable socket 132 and the cable three-phase connector 134 are both used for plugging a cable to be tested, the power connector 131 comprises a zero line connector 1311 coupled with an external zero line and a live line connector 1312 coupled with an external live line, the indicator lamp 133, the cable three-phase connector 134, the cable socket 132 and the change-over switch 135 are mutually connected in series between the zero line connector 1311 and the live line connector 1312, during detection, only the cable, the cable socket 132 and the cable three-phase connector 134 are needed, then the zero line connector 1311 and the live wire connector 1312 are connected with external commercial power, the detection is that the change-over switch 135 is shifted, different passages are communicated by the change-over switch 135, whether the indicator lights are on or not to detect whether the loop connected with the core in the cable is conducted or not, the whole process is quite simple and convenient, compared with the mode of detecting by adopting a universal meter in the prior art, the problem of inaccurate detection caused by the fact that a plurality of cores are encountered simultaneously is avoided, the whole operation process is quite convenient compared with the universal meter, when the wiring in the box body 1 is required to be maintained, only the key is needed to be inserted into the lock cylinder 12, then the key is utilized to drive the lock hole 15 and the rotating shaft 13 to rotate, so that the rotating rod 14 rotates out from the lower part of the blocking edge 11, the rotating rod 14 and the blocking edge 11 are not mutually contradicted, and thus the box cover 2 can be well opened, and the wiring in the box body 1 is quite convenient to maintain.
In a specific embodiment of the improvement, the cable socket 132 includes two 4-core sockets 1321, two 10-core sockets 1322 and one 6-core socket 1323, the switch 135 includes 4-core switches 1351, 6-core switches 1352 and 10-core switches 1353, the indicator light 133 includes 4-core indicator light sets 1332, 6-core indicator light sets 1331 and 10-core indicator light sets 1333, the 4-core switches 1351, 4-core indicator light sets 1332 and two 4-core sockets 1321 are connected in series between the neutral connection 1311 and the live connection 1312, the 10-core switches 1353, 10-core indicator light sets 1333 and two 10-core sockets 1322 are connected in series between the neutral connection 1311 and the live connection 1312, the 6-core switch 1352, 6-core indicator light sets 1331 and 6-core sockets 1323 and the cable three-phase connection 134 are connected in series between the neutral connection 1311 and the live connection 1312, the most frequently used cables of the switch cabinet in the prior art basically comprise 4-core cables, 6-core cables and 10-core cables, so that the cable socket 132 is arranged into two 4-core sockets 1321, two 10-core sockets 1322 and one 6-core socket 1323, so that most cables in the prior art can be effectively connected, the test box can also be applicable to most cables in the prior art, so that the cable socket 132 is arranged into a 3-core socket, a 5-core socket or a 7-core socket, so that the cable socket 132 cannot be well applicable to cables in the prior art, so that the cable socket cannot be applicable to the switch cabinet, the use range is reduced, and the socket specifications in the embodiment must be 4-core, 6-core and 10-core, wherein the 4-way change-over switch 1351 and the 4-core indicator lamp set 1332 in the embodiment, the 6-way change-over switch 1352 and the 6-core indicating lamp set 1331 and the 10-way change-over switch 1353 and the 10-core indicating lamp set 1333 are correspondingly and adjacently arranged on the box cover 2 as shown in fig. 1, so that the test result is intuitively and clearly known in the test process, and the problem of the test result caused by error is not easy to occur.
As an improved specific implementation manner, 4 power-on loops are provided in the 4-way change-over switch 1351, each power-on loop is provided with two interfaces, the two interfaces are respectively arranged at two sides of the 4-way change-over switch 1351, one side interface is connected with a fuse and then is coupled with the live wire connector 1312 after being shorted with each other, the two 4-way change-over switch 1321 forms 4 power-on loops, the 4-way indication lamp group 1332 comprises 4 indication lamps, each of the 4 power-on loops in the 4-way change-over switch 1321 is provided with two jacks, the jacks at one side are respectively connected with the interfaces at the other side of the interface corresponding to each other, the jacks at the other side are connected with the interface at one side corresponding to the 4 indication lamps one by one, the 4 power-on loops in the 4-way change-over switch 1351 and the indication lamps are connected into 4, the direction of current flows out from the 4-way change-over switch 1351 in the process, then the 4-over switch core is selected, and the 4-way change-over switch 1321 is detected if the power-over core is in the 4-over switch core, and then the 4-on core is detected in the 4-way change-over switch 1321 is detected, and if the fault is detected in the 4-way, and the situation that the power-on core is detected in the 4-on core is detected.
As a specific implementation manner of improvement, 6 energizing circuits are arranged in the 6-way change-over switch 1352, each energizing circuit is provided with two interfaces, the two interfaces are respectively arranged at two sides of the 6-way change-over switch 1352, one interface is coupled with a fuse after being shorted with each other and then is coupled with the live wire connector 1312, 6 energizing circuits are also arranged in the 6-core socket 1323, the 6-core indicating lamp group 1331 comprises 6 indicating lamps, the 6 energizing circuits in the 6-core socket 1323 are respectively provided with two sockets, the sockets arranged at two sides of the 6-core socket 1323 are respectively connected with the interfaces at one side of the 6-way change-over switch 1352 corresponding to the interfaces at the other side of the interface which is shorted with each other, the sockets at the other side are connected with the interface at zero line after being shorted with the 6 indicating lamps, the three-phase cable connector 134 comprises 3 2-core sockets, one 2-core socket corresponds to two indicating lamps, the 3 2-core jacks are respectively connected between the 6-core socket 1323 and the indicator lights, the 6-way change-over switch 1352 is internally provided with an automatic loop, a 2-core C-phase self-connection indicator loop and a 2-core zero-sequence self-connection indicator loop, the automatic loop, the 2-core C-phase self-connection indicator loop and the 2-core zero-sequence self-connection indicator loop are respectively coupled between the 3 2-core jacks and the indicator lights in a one-to-one correspondence manner, because the existing 6-core cable comprises 3 parts, a 6-core cable main line, a 6-core suspension type lap joint and the 2-core cable, the 3 parts are required to be detected during detection, so that the 6-core power-on condition in the 6-core cable main line can be detected through the 6 power-on loops in the 6-way change-over switch 1352 in a matched manner with the 6-core indicator lights, thus the fault condition of the 6-core cable main line can be effectively and accurately detected, the automatic loop, the 2-core C phase self-connection indication loop and the 2-core zero sequence self-connection indication loop can be used for detecting the self-shorting structure condition of the 2-core cable by being matched with the cable three-phase connector 134, the automatic loop and the indicator lamp can be used for further detecting the self-shorting structure condition of the 6-core suspension type connector, so that the 6-core cable can be comprehensively detected, in the process of detecting the self-shorting, as shown in the figure 4, when the automatic loop is conducted, the current flow direction is the direct direction of a fire wire to the first 2-core jack, the 2-core jack is connected with the 2-core cable, so that the 2-core jack is in a conducting state under the condition that the 2-core cable self-shorting structure has no faults, and the current can flow through the 2-core jack to a zero line after the indicator lamp, the indicator lamp emits light, so that the detection of whether the self-shorting structure of the 2-core cable has faults or not can be well realized, and the same principle that the 2-core jack is in the 6-core suspension type connector is connected with the 2-core cable can be completely detected, so that the principle of the self-shorting structure is not formed when the indicator lamp core connector 6 is connected with the main line, and the indicator lamp core is completely, and the fault-core connector is completely detected, and the principle is not completely is formed when the main line cable is completely, and the fault cable is detected, and the main core cable is 4.
As an improved specific embodiment, 10 power-on loops are provided in the 10-way switch 1353, each power-on loop has two interfaces, which are respectively provided at two sides of the 10-way switch 1353, one side interface is coupled with a fuse after being shorted with each other and then is coupled with the live wire connector 1312, the two 10-core sockets 1322 form 10 power-on loops, the 10-core indicator lamp set 1333 includes 10 indicator lamps, each 10 power-on loop in the 10-core socket 1322 has two sockets, which are respectively provided at two sides of the 10-core socket 1322, the socket at one side is connected with the interface at the other side of the interface at which the 10-way switch 1353 is shorted with each other in a one-to-one correspondence, the socket at the other side is connected with the interface at the zero line after being connected with the 10 indicator lamps in a one-to-one correspondence, and the detection principle of the 10-core is similar to that of the 4-core, thus not repeated.
As a specific embodiment of the improvement, the test procedure for testing 4-core cables using the test chamber described above is as follows:
firstly, aviation plugs at two ends of a 4-core cable are inserted into two 4-core sockets 1321 on a box cover 2 and are screwed; connecting 4-core cable to 4-way change-over switch 1351 and 4-core indicator light set 1332; and turns on the 4-way change-over switch 1351 and the 4-core indicator lamp set 1332;
step two, connecting the live wire joint 1312 and the neutral wire joint 1311 with external commercial power, rotating the 4-way change-over switch 1351 to the first power-on loop, if the corresponding indicator lamp is on, indicating that the path of the core of the 4-core cable is normal, if the corresponding indicator lamp is not on, indicating that the path of the core of the 4-core cable is faulty, continuing to rotate the 4-way change-over switch 1351, until all the electrified loops are turned over, detection is completed, the 4-core cable and the 4-core socket 1321 can be effectively connected through the first step, and the 4-channel change-over switch 1351 and the indicator lamp can be effectively utilized to detect the fault condition of the 4-core cable through the second step, so that the detection of the 4-core cable can be effectively completed.
As an improved specific embodiment, the detection step of detecting the 6-core cable by using the test box comprises a 6-core cable main line detection step, a 6-core suspension lap joint detection step and a 2-core cable detection step, wherein the 2-core cable detection step comprises the following steps:
1, 3 2-core cables are connected with 3 2-core jacks in a cable three-phase joint 134 on the box cover 2, wherein the 3 2-core jacks are sequentially connected with a yellow wire clamp, a green wire clamp, a red wire clamp, a black wire clamp, a blue wire clamp and a brown wire clamp respectively, the method comprises the steps of clamping an A-phase cable 1 end of a 2-core cable by a yellow wire clamp, clamping an A-phase cable 2 end of a 2-core cable by a green wire clamp, clamping a C-phase cable 1 end of a 2-core cable by a red wire clamp, clamping a C-phase cable 2 end of a 2-core cable by a black wire clamp, clamping an N-phase cable 1 end of a 2-core cable by a blue wire clamp, and clamping an N-wire cable 2 end of a 2-core cable by a brown wire clamp;
2, connecting the live wire connector 1312 and the zero wire connector 1311 with external commercial power, turning the 6-way change-over switch 1352 to an automatic loop to conduct the automatic loop, if two indicator lamps corresponding to the automatic loop are on, indicating that the self-shorting structure of the A phase of the 2-core cable is normal, and if one of the indicator lamps is not on, checking whether the wiring and the installation of the self-shorting of the A phase of the 2-core cable are correct, and completing the self-shorting detection of the A phase of the 2-core cable;
3, turning the 6-way transfer switch 1352 to a 2-core C-phase self-connection indication loop to enable the 2-core C-phase self-connection indication loop to be on if two indication lamps corresponding to the 2-core C-phase self-connection indication loop are on, indicating that the C-phase self-shorting structure of the 2-core cable is normal, and if one of the lamps is not on, checking whether the wiring and the installation of the self-shorting of the 2-core cable C-phase are correct or not, and completing the self-shorting detection of the 2-core cable C-phase;
4, turning the 6-way transfer switch 1352 to a 2-core zero-sequence self-connection indication loop, if two indication lamps corresponding to the 2-core zero-sequence self-connection indication loop are on, the N-phase self-shorting structure of the 2-core cable is normal, if one of the lamps is not on, checking whether the wiring and the installation of the N-phase self-shorting of the 2-core cable are correct, and completing the detection of the N-phase self-shorting of the 2-core cable, thereby completing the detection of the 2-core cable;
the detection step of the 6-core suspension type lap joint comprises the following steps:
(1) The 3 lap joints of the 2-core cables connected with the cable three-phase joint 134 are connected to A, C, N points corresponding to the 6-core suspension lap joints;
(2) Connecting the live wire connector 1312 and the zero wire connector 1311 with external commercial power, turning the 6-way change-over switch 1352 to an automatic loop, if the indicator lamps in the 6-core indicator lamp set 1331 are all on, indicating that the 6-core suspension type lap joint is normal, if one of the indicator lamps is not on, checking the wiring condition of the corresponding point, and finishing the detection of the 6-core suspension type lap joint;
the detection steps of the 6-core cable main line self-shorting structure comprise:
(1) connecting the 6-core suspension type lap joint connected with 3 2-core cables with a lap joint at one end of a main line of the 6-core cable;
(2) the live wire connector 1312 and the zero line connector 1311 are connected with external commercial power, the 6-way change-over switch 1352 is turned to an automatic loop, if the indicator lamps in the 6-core indicator lamp set 1331 are all on, the self-shorting structure of the main line of the 6-core cable is normal, if one of the indicator lamps is not on, the self-shorting condition of the corresponding point of the main line of the 6-core cable needs to be checked, further the 6-core cable is detected, the 2-core cable can be effectively connected with the three-phase cable connector 134 according to the phase condition through the setting of the step 1, each line is distinguished by adopting clamps with different colors in the embodiment, the problem of wrong connection of the lines is avoided, then the 2-core cable can be effectively detected through the setting of the step 2 and the step 3, the 6-core suspension type connector can be further connected on the basis of connecting the 2-core cable through the setting of the step 1, then the detection of the 6-core suspension type lap joint is finished through the step 2, so that the problem of disassembling the 2-core cable from the test box when the 6-core suspension type lap joint is detected is solved, the main cable line can be further connected after the 2-core cable and the 6-core suspension type lap joint are connected through the arrangement of the step 1, a progressive detection effect is presented, the disassembly step is not needed in the detection replacement process, the working efficiency of 6-core cable detection is greatly improved, the self-shorting condition of the 2-core cable can be effectively detected by effectively utilizing the mode of lighting and extinguishing a pair of 6 indicator lamps through the arrangement of an automatic loop, a 2-core zero sequence self-connection indicator loop and a 2-core C phase self-connection indicator loop in the 6-way change-over switch 1352, therefore, an additional lamp specially used for detecting the self-shorting condition of the 2-core cable is not needed, the cost of the whole test facility is effectively reduced, wherein the other end of the 6-core cable main line opposite to the 6-core suspension lap joint can be connected with the 6-core socket 1323, and then the fault condition of the 6-core cable main line is detected by utilizing the same detection principle as that of the 4-core cable.
As a specific embodiment of the improvement, the step of detecting the 10-core cable using the above-mentioned test box is as follows:
a, aviation plugs at two ends of a 10-core cable are respectively inserted into two 10-core sockets 1322 on the box cover 2 and screwed, and the 10-core cable is connected between a 10-way change-over switch 1353 and a 10-core indicator lamp set 1333; and turns on 10-way change-over switch 1353 and 10-core indicator lamp set 1333;
b, connecting the live wire connector 1312 and the zero wire connector 1311 with external commercial power, rotating the 10-way change-over switch 1353 to the first power-on loop, if the corresponding indicator lamp is on, indicating that the channel of the 10-core cable is normal, if the corresponding indicator lamp is not on, indicating that the channel of the 10-core cable is faulty, continuing to rotate the 10-way change-over switch 1353 until all the power-on loops are turned over, completing detection, and effectively connecting the 10-core cable with the 10-core socket 1322 through the step a, and effectively detecting the fault condition of the 10-core cable by using the 10-way change-over switch 1353 and the indicator lamp through the step b, so that the detection of the 10-core cable can be effectively completed.
In summary, according to the preassembled quick connector and the special test box for the cable, through the arrangement of the box body 1 and the box cover 2, the detection component power connector 131, the cable socket 132, the indicator light 133, the cable three-phase connector 134 and the change-over switch 135 can be effectively integrated together, and meanwhile, the effect of quickly and effectively detecting the cable can be realized through the arrangement of the detection components, and compared with the detection mode of a universal meter in the prior art, the test box is more quick and accurate.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.