A device for detecting automatic on-off withstand voltage and loop resistance of molded case circuit breakers

Abstract

The present invention provides a device for automatically making and breaking withstand voltage and loop resistance detection of a molded case circuit breaker, which belongs to the technical field of molded case circuit breaker detection, and comprises a base, wherein a workbench is rotatably installed in the middle of the inner part of the base through a rotating mechanism, and a detection mechanism is arranged inside the workbench, and the detection mechanism comprises a hollow fixed cylinder, and the hollow fixed cylinder is arranged in the middle of the upper end of the workbench, and a hollow rotating cylinder is rotatably installed in the middle of the upper end of the hollow fixed cylinder through a connecting shaft, and a hollow frame is sleeved on the circumferential surface of the connecting shaft; through the arranged detection mechanism, the molded case circuit breaker body can be quickly placed on the surface of the hollow rotating cylinder, and then when the hollow rotating cylinder drives the connecting plate of the molded case circuit breaker to rotate horizontally to the bottom of the power-on mechanism, the clamping plate can automatically clamp and fix the molded case circuit breaker, and no other clamping mechanism is required, and no manual operation is required, so the use is simple and fast, and the work efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of molded case circuit breaker detection, and in particular relates to a molded case circuit breaker automatic on-off withstand voltage and loop resistance detection device. Background Art

[0002] Molded case circuit breakers, also known as air switches, are circuit breakers that install the main components such as the contact system, arc extinguishing chamber, operating mechanism and various trip devices in a housing (two parts: the bottom shell and the cover) made of molded insulating material. This structure makes the molded case circuit breaker highly compact, but it also means that it is basically impossible to repair. The main function of the molded case circuit breaker is to distribute electrical energy and protect the line and power supply equipment from damage caused by overload, short circuit and other faults.

[0003] During the production process of molded case circuit breakers, it is necessary to test their on-off withstand voltage and loop resistance. Only after they pass the test can they be marked. However, the existing testing devices generally manually transfer the molded case circuit breakers to the testing device, and then fix them with a fixing mechanism before performing the testing work. The operation is cumbersome and inefficient.

[0004] Therefore, we propose a molded case circuit breaker automatic on-off withstand voltage and loop resistance detection device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing detection device generally requires manual transfer of the molded case circuit breaker to the detection device, and then fixes it through a fixing mechanism before performing the detection work, which is cumbersome and inefficient. A molded case circuit breaker automatic on-off withstand voltage and loop resistance detection device is proposed.

[0006] The purpose of the present invention can be achieved through the following technical scheme: it includes a base, a workbench is rotatably installed in the middle of the interior of the base through a rotating mechanism, a detection mechanism is arranged inside the workbench, the detection mechanism includes a hollow fixed cylinder, and the hollow fixed cylinder is arranged in the middle of the upper end of the workbench, a hollow rotating cylinder is rotatably installed in the middle of the upper end of the hollow fixed cylinder through a connecting shaft, a hollow frame is sleeved on the circumferential surface of the connecting shaft, a push plate and a limit rod are respectively arranged on the outer walls of the front and rear sides of the hollow frame, the push plate and the limit rod are respectively inserted into the front and rear ends of the hollow rotating cylinder, and the lower surface of the push plate is provided with A card block is provided, and the card block is carded on the inner wall of the hollow fixed cylinder, the circumferential surface of the limit rod is sleeved with a spring 1, and the front and rear ends of the spring 1 are respectively abutted against the outer wall of the hollow frame and the inner wall of the hollow rotating cylinder, the front and rear ends of the hollow rotating cylinder are both movably connected with a hollow connecting block through a spring 2, the two ends of the hollow connecting blocks away from the hollow rotating cylinder are both provided with a clamping plate, the lower ends of the two groups of the clamping plates are both provided with a U-shaped connecting block, the lower ends of the two U-shaped connecting blocks are both provided with a slider, the molded case circuit breaker body is clamped and fixed between the two groups of the clamping plates, and the molded case circuit breaker body is placed on the upper surface of the hollow rotating cylinder.

[0007] As a preferred embodiment of the present invention, an arc-shaped movable groove is opened on the upper surface of the workbench, and two groups of arc-shaped movable grooves are arranged in a circular array. The lower ends of the two sliding blocks are respectively slidably installed inside the front and rear ends of the two arc-shaped movable grooves, and protrusions are arranged inside the left and right ends of the two arc-shaped movable grooves, and the side walls of the protrusions are designed to be arc-shaped.

[0008] As a preferred embodiment of the present invention, the front end inner wall and the right end inner wall of the hollow fixed cylinder are both provided with card slots, and the card block is carded inside the card slots at the front end.

[0009] As a preferred embodiment of the present invention, a telescopic through slot is provided in the middle of the front end of the hollow rotating cylinder, the front end of the push plate passes through the telescopic through slot and extends to the front end of the hollow rotating cylinder, a limiting through slot is provided in the middle of the rear end of the hollow rotating cylinder, the rear end of the limiting rod is inserted into the interior of the limiting through slot, and installation slots are provided in the middle of the front and rear ends of the hollow rotating cylinder, and the installation slots are arranged above the telescopic through slot, and the two groups of springs and hollow connecting blocks are respectively arranged in the interior of the two groups of installation slots.

[0010] As a preferred embodiment of the present invention, the rotating mechanism includes a longitudinal rotating motor, which is arranged at the front end of the upper surface of the base, and the power output end of the longitudinal rotating motor is transmission-connected with a rotating shaft 1, and a mounting seat is arranged at the rear end of the rotating shaft 1, and a transverse rotating motor is arranged in the middle of the mounting seat, and the power output end of the transverse rotating motor is transmission-connected with a rotating shaft 2, and the upper end of the rotating shaft 2 is fixedly connected to the lower surface of the workbench.

[0011] As a preferred embodiment of the present invention, a rotating shaft three is provided on the outer wall at the rear end of the mounting seat, a fixed block is rotatably connected to the rear end of the rotating shaft three, and the fixed block is provided at the rear end of the upper surface of the base, a longitudinal rotation groove is provided in the middle of the base, and the lower end of the mounting seat is provided inside the longitudinal rotation groove.

[0012] As a preferred embodiment of the present invention, an annular movable groove is opened on the inner wall of the mounting seat, and limit support blocks are arranged on the front, rear, left and right side walls of the workbench. The four limit support blocks are installed inside the annular movable groove by ball rotation.

[0013] As a preferred embodiment of the present invention, columns are arranged at the four corners of the upper surface of the workbench, the upper ends of the four columns are connected to a top plate, several groups of power supply mechanisms are arranged inside the left and right ends of the top plate, and an opening and closing mechanism is arranged in the middle of the top plate.

[0014] As a preferred embodiment of the present invention, the power-supply mechanism includes a lifting cylinder, and the lifting cylinder is arranged inside the top plate, a mounting block is arranged at the lower end of the lifting cylinder, an electrical connector is arranged inside the mounting block, an automatic wire winding drum is arranged on the upper surface of the top plate, and the wires of the electrical connector are wound around the automatic wire winding drum.

[0015] As a preferred embodiment of the present invention, the opening and closing mechanism includes an electric telescopic rod, and the electric telescopic rod is arranged inside the top plate, a moving block is arranged at the left end of the electric telescopic rod, a U-shaped push block is arranged at the lower end of the moving block, an operating handle at the upper end of the molded case circuit breaker body is located in the middle of the U-shaped push block, a linear moving groove is opened inside the lower end of the top plate, and the upper end of the moving block is movably installed inside the linear moving groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) Through the detection mechanism, the main body of the molded case circuit breaker can be quickly placed on the surface of the hollow rotating cylinder. Then, when the hollow rotating cylinder drives the connecting plate of the molded case circuit breaker to rotate horizontally to the bottom of the power-on mechanism, the clamping plate can automatically clamp and fix the molded case circuit breaker. There is no need to set up other clamping mechanisms or manual operation. It is simple and quick to use and has higher work efficiency.

[0018] (2) Through the provided rotating mechanism, the molded case circuit breaker can be rotated to 45 degrees, vertical, inverted, left-side standing, and right-side standing states, thereby facilitating the detection of the molded case circuit breaker in different states and improving the detection quality;

[0019] (3) Through the power-on mechanism, a 12V detection voltage can be smoothly applied to the molded case circuit breaker. Through the opening and closing mechanism, the control handle of the molded case circuit breaker can be opened or closed, and then the on-off withstand voltage and loop resistance of the molded case circuit breaker can be automatically detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a front cutaway perspective view of the present invention;

[0023] Figure 3 It is a front sectional perspective view of the rotating mechanism of the present invention;

[0024] Figure 4 It is a right-side cutaway perspective view of the rotating mechanism of the present invention;

[0025] Figure 5 An exploded view of the detection mechanism of the present invention;

[0026] Figure 6 It is a front cutaway perspective view of the detection mechanism of the present invention;

[0027] Figure 7 It is a top sectional perspective view of the workbench of the present invention.

[0028] In the figure: 1. base; 2. rotating mechanism; 201. longitudinal rotating motor; 202. rotating shaft 1; 203. mounting seat; 204. horizontal rotating motor; 205. rotating shaft 2; 206. rotating shaft 3; 207. fixing block; 3. working table; 4. detecting mechanism; 401. hollow fixed cylinder; 402. connecting shaft; 403. hollow rotating cylinder; 404. hollow frame; 405. push plate; 406. clamping block; 407. limiting rod; 408. spring 1; 409. spring 2; 410. hollow connecting block; 411. clamping plate; 412. U Type connecting block; 413, slider; 5, molded case circuit breaker body; 6, column; 7, top plate; 8, power-on mechanism; 801, lifting cylinder; 802, mounting block; 803, electrical connector; 804, automatic take-up reel; 9, opening and closing mechanism; 901, electric telescopic rod; 902, moving block; 903, U-shaped push block; 904, linear moving groove; 10, longitudinal rotating groove; 11, limit support block; 12, annular movable groove; 13, telescopic through groove; 14, limit through groove; 15, mounting groove; 16, card slot; 17, arc moving groove; 18, bump. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] See also Figure 1 - Figure 7As shown, a molded case circuit breaker automatic on-off withstand voltage and loop resistance detection device comprises a base 1, a workbench 3 is rotatably installed in the middle of the base 1 through a rotating mechanism 2, the rotating mechanism 2 comprises a longitudinal rotating motor 201, the longitudinal rotating motor 201 is arranged at the front end of the upper surface of the base 1, the power output end of the longitudinal rotating motor 201 is connected to a rotating shaft 1 202 through a coupling, a mounting seat 203 is arranged at the rear end of the rotating shaft 1 202, a transverse rotating motor 204 is arranged in the middle of the mounting seat 203, the power output end of the transverse rotating motor 204 is connected to a rotating shaft 2 205, the upper end of the rotating shaft 205 is fixedly connected to the lower surface of the workbench 3, so that when the transverse rotating motor 204 drives the rotating shaft 205 to rotate, the rotating shaft 205 can drive the workbench 3 to rotate transversely, and a rotating shaft 3 206 is arranged on the rear end outer wall of the mounting seat 203, and the rear end of the rotating shaft 3 206 is rotatably connected to A fixed block 207 is provided at the rear end of the upper surface of the base 1. The setting of the fixed block 207 can limit the installation of the rotating shaft 3 206 without affecting the rotation of the rotating shaft 3 206. The setting of the rotating shaft 3 206 can support the mounting seat 203 and enable the mounting seat 203 to stably rotate longitudinally. A longitudinal rotation groove 10 is provided in the middle of the base 1. The lower end of the mounting seat 203 is provided inside the longitudinal rotation groove 10. An annular movable groove 12 is provided on the inner wall of the mounting seat 203. Limiting support blocks 11 are provided on the front, rear, left and right side walls of the workbench 3. Four limiting support blocks 11 are all rotatably installed inside the annular movable groove 12 by means of balls. The setting of the annular movable groove 12 enables the limiting support block 11 to smoothly rotate inside the annular movable groove 12. The setting of the limiting support block 11 can support the workbench 3 without affecting the lateral rotation of the workbench 3.

[0032] It should be noted that when the longitudinal rotating motor 201 drives the mounting seat 203 to rotate longitudinally through the rotating shaft 202, through the setting of the longitudinal rotating groove 10, the mounting seat 203 and all the structures set inside it will not touch the inner wall of the base 1, so that the mounting seat 203 can rotate longitudinally smoothly and stably, so that the on-off withstand voltage and loop resistance detection work can be carried out smoothly.

[0033] The workbench 3 is provided with a detection mechanism 4 inside, which includes a hollow fixed cylinder 401, and the hollow fixed cylinder 401 is arranged in the middle of the upper end of the workbench 3. A hollow rotating cylinder 403 is rotatably installed in the middle of the upper end of the hollow fixed cylinder 401 through a connecting shaft 402, so that the hollow rotating cylinder 403 can be limited and rotated in the hollow fixed cylinder 401. The circumferential surface of the connecting shaft 402 is sleeved with a hollow frame 404, and the outer walls of the front and rear sides of the hollow frame 404 are respectively provided with a push plate 405 and a limit rod 407, which are respectively inserted into the front and rear of the hollow rotating cylinder 403. Inside the two rear ends, a telescopic through slot 13 is provided in the middle of the front end of the hollow rotating cylinder 403, and the front end of the push plate 405 passes through the telescopic through slot 13 and extends to the front end of the hollow rotating cylinder 403. The setting of the telescopic through slot 13 provides the push plate 405 with a movable space, so that the push plate 405 can smoothly telescope inside the hollow rotating cylinder 403. A limiting through slot 14 is provided in the middle of the rear end of the hollow rotating cylinder 403, and the rear end of the limiting rod 407 is inserted into the limiting through slot 14. The setting of the limiting through slot 14 provides the limiting rod 407 with a movable space, so that the limiting rod 407 can smoothly telescope inside the limiting through slot 14.

[0034] A block 406 is provided on the lower surface of the push plate 405, and the block 406 is clamped on the inner wall of the hollow fixed cylinder 401. The front inner wall and the right inner wall of the hollow fixed cylinder 401 are both provided with a clamping groove 16, and the block 406 is clamped inside the front clamping groove 16. The circumferential surface of the limit rod 407 is sleeved with a spring 1 408, and the front and rear ends of the spring 1 408 are respectively abutted against the outer wall of the hollow frame 404 and the inner wall of the hollow rotating cylinder 403, and the front and rear ends of the hollow rotating cylinder 403 are movably connected with a hollow connecting block 410 through a spring 2 409. , the two hollow connecting blocks 410 are both provided with a clamping plate 411 at one end away from the hollow rotating cylinder 403, and the middle of the front and rear ends of the hollow rotating cylinder 403 are provided with a mounting groove 15, and the mounting groove 15 is arranged above the telescopic through groove 13, and the two groups of springs 409 and the hollow connecting blocks 410 are respectively arranged inside the two groups of mounting grooves 15. The setting of the mounting grooves 15 increases the activity space of the hollow connecting blocks 410, so that the hollow connecting blocks 410 can smoothly drive the clamping plate 411 to approach the hollow rotating cylinder 403 or move away from the hollow rotating cylinder 403;

[0035] The lower ends of the two groups of clamping plates 411 are both provided with U-shaped connecting blocks 412, and the lower ends of the two U-shaped connecting blocks 412 are both provided with sliders 413. The molded case circuit breaker body 5 is clamped and fixed between the two groups of clamping plates 411, and the molded case circuit breaker body 5 is placed on the upper surface of the hollow rotating cylinder 403. The upper surface of the workbench 3 is provided with an arc-shaped moving groove 17, and the arc-shaped moving groove 17 is arranged in two groups in a circumferential array. The lower ends of the two sliders 413 are respectively slidably installed in the front and rear ends of the two arc-shaped moving grooves 17. The left and right ends of the two arc-shaped moving grooves 17 are both provided with protrusions 18, and the side walls of the protrusions 18 are arc-shaped. The arc-shaped design of the protrusions 18 enables the slider 413 to move inside the arc-shaped moving groove 17. When the slider 413 contacts the protrusions 18, the protrusions 18 can squeeze the slider 413 toward the outer end, so that the slider 413 can drive the U-shaped connecting block 412 and the clamping plate 411 away from the molded case circuit breaker body 5, so that the clamping plate 411 loses the clamping effect on the molded case circuit breaker body 5;

[0036] It should be noted that after the molded case circuit breaker inspection is completed, the push plate 405 is pushed backward into the interior of the hollow rotating cylinder 403, so that the push plate 405 drives the hollow frame 404, the limit rod 407 and the block 406 to move backward, and then the hollow frame 404 will squeeze the spring 1 408, and the block 406 will move out from the interior of the front end slot 16. At this time, the hollow rotating cylinder 403 can be rotated horizontally. After the hollow rotating cylinder 403 rotates ninety degrees counterclockwise, the push plate 405 is released. The push plate 405 moves to the outside of the hollow rotating cylinder 403 under the action of the spring 1 408, so that the block 406 is clamped in the interior of the right side slot 16, and then the hollow rotating cylinder 403 is limited and fixed. At the same time, the hollow rotating cylinder 403 will also synchronously drive the clamping plate 411 to rotate ninety degrees counterclockwise, so that the clamping plate 411 drives the U-shaped connecting block 4 12 and the slider 413 rotate ninety degrees, and then the slider 413 will abut against the protrusion 18, and the protrusion 18 will push the slider 413 outward, so that the slider 413 drives the U-shaped connecting block 412 and the clamping plate 411 to lose the clamping and fixing effect on the molded case circuit breaker body 5. At this time, the molded case circuit breaker body 5 can be withdrawn from the front to complete the unloading work of the molded case circuit breaker. When the push plate 405 and the limit rod 407 are extended and retracted inside the hollow rotating cylinder 403, a part of the push plate 405 and the limit rod 407 must always be located inside the telescopic through groove 13 and the limit through groove 14, so that the push plate 405 and the limit rod 407 can only move in a straight line, and the connecting shaft 402 will limit the moving distance of the hollow frame 404, and the push plate 405, the hollow frame 404 and the limit rod 407 will not move too much and leave the through groove, resulting in the inability to reset.

[0037] The four corners of the upper surface of the workbench 3 are provided with upright posts 6, the upper ends of the four upright posts 6 are connected to a top plate 7, a plurality of power supply mechanisms 8 are provided inside the left and right ends of the top plate 7, and an opening and closing mechanism 9 is provided in the middle of the top plate 7;

[0038] The power supply mechanism 8 includes a lifting cylinder 801, and the lifting cylinder 801 is arranged inside the top plate 7. A mounting block 802 is arranged at the lower end of the lifting cylinder 801. An electric connector 803 is arranged inside the mounting block 802. An automatic wire take-up drum 804 is arranged on the upper surface of the top plate 7. The electric wires of the electric connector 803 are wound inside the automatic wire take-up drum 804. The automatic wire take-up drum 804 can automatically reel in and unreel the electric wires of the electric connector 803, so that when the mounting seat 203 rotates horizontally or vertically, the automatic wire take-up drum 804 can automatically reel in and unreel the electric wires of the electric connector 803 according to the rotation amplitude, so that the electric connector 803 can always perform power-on detection on the molded case circuit breaker body 5;

[0039] The opening and closing mechanism 9 includes an electric telescopic rod 901, and the electric telescopic rod 901 is arranged inside the top plate 7. A moving block 902 is arranged at the left end of the electric telescopic rod 901, and a U-shaped push block 903 is arranged at the lower end of the moving block 902. The operating handle at the upper end of the molded case circuit breaker body 5 is located in the middle of the U-shaped push block 903, wherein the inner side walls of the left and right ends of the U-shaped push block 903 are both arc-shaped, so that when the U-shaped push block 903 pushes the operating handle of the molded case circuit breaker body 5 to open and close, it will not scratch the operating handle, etc. A linear moving groove 904 is opened inside the lower end of the top plate 7, and the upper end of the moving block 902 is movably installed inside the linear moving groove 904. The setting of the linear moving groove 904 provides a movable space for the moving block 902, so that the moving block 902 can move horizontally smoothly.

[0040] When the present invention is in use, when it is necessary to perform on-off withstand voltage and loop resistance tests on the molded case circuit breaker, firstly, the assembled molded case circuit breaker body 5 is placed on the surface of the hollow rotating cylinder 403. At this time, because the protrusion 18 abuts against the slider 413, the two groups of clamping plates 411 are only located on both sides of the middle of the molded case circuit breaker body 5 and are not clamped. Then, the push plate 405 is pushed into the inside of the hollow rotating cylinder 403, so that the push plate 405 drives the clamping block 406 to move out from the inside of the right end clamping groove 16. At the same time, the spring 1 408 is in a compressed state. Then, the hollow rotating cylinder 403 is rotated ninety degrees clockwise. When the hollow rotating cylinder 403 just starts to rotate, the slider 413 moves inside the arc-shaped moving groove 17. When the slider 413 moves inside the arc-shaped moving groove 17, When the block 413 does not abut against the protrusion 18, the elastic force of the second spring 409 is released, and the clamping plate 411, the U-shaped connecting block 412 and the slider 413 are pulled toward the direction of the molded case circuit breaker body 5, so that the two groups of clamping plates 411 clamp and fix the molded case circuit breaker body 5, and then after the hollow rotating cylinder 403 rotates ninety degrees, the connecting plates on the left and right sides of the molded case circuit breaker body 5 are respectively located directly below the power-on mechanisms 8 on the left and right sides, and the push plate 405 is released. The spring of the first spring 408 is released, and the limit rod 407, the hollow frame 404, the push plate 405 and the block 406 are pushed forward, so that the block 406 is inserted into the front end slot 16, so that the hollow rotating cylinder 403 is fixed on the hollow fixed cylinder 401;

[0041] Then, the lifting cylinder 801 is started, and the lifting cylinder 801 drives the mounting block 802 and the electrical connector 803 to move downward, and a 12V detection voltage is applied to the A phase, B phase, C phase, and N phase of the molded case circuit breaker body 5, and the electric telescopic rod 901 works, driving the moving block 902 and the U-shaped push block 903 to move horizontally left and right, thereby pushing the operating handle on the molded case circuit breaker body 5 to move left or right, so that the molded case circuit breaker body 5 can close or open the switch;

[0042] Then, the horizontal rotating motor 204 is started, and the horizontal rotating motor 204 drives the workbench 3 to rotate horizontally through the second rotating shaft 205, so that the workbench 3 can drive the detection mechanism 4, the molded case circuit breaker body 5 and the top plate 7 to be in a state of forty-five degrees. The longitudinal rotating motor 201 can also be started, and the longitudinal rotating motor 201 drives the mounting seat 203 to rotate longitudinally through the rotating shaft 1 202, so that the mounting seat 203 drives the workbench 3 to rotate ninety degrees or one hundred and eighty degrees, so that the workbench 3 and the molded case circuit breaker body 5 are in a vertical state or an inverted state. The molded case circuit breaker body 5 can also be driven to rotate ninety degrees horizontally through the horizontal rotating motor 204, and then rotated forty-five degrees longitudinally through the longitudinal rotating motor 201, so that the molded case circuit breaker body 5 is in a left-side standing state or a right-side standing state. The product operation sequence for each state is: buckle again - close the switch - open the switch - The traction rod is tripped, cycled twice, then re-tripped - closed - opened - closed - opened - closed, cycled three times, and three cycles are performed in the above order, a total of fifteen times. During the opening and closing process, the re-tripping force, opening force, closing force and tripping force of the operating handle are tested. Withstand voltage test: Ⅰ. When the product is in the closed state, the withstand voltage between the poles is tested; Ⅱ. When the product is in the closed state, the withstand voltage between the phase and the bottom plate is tested. When testing this function, it is required to insert the electrode into the product installation screw hole and contact the conductive bottom plate; Ⅲ. When the product is in the open state, the withstand voltage between the terminal on the same side and the terminal on the other side is tested. The loop resistance test uses a 100A DC electronic constant current power supply. The loop resistance is obtained after detection and conversion. After the measurement is completed, the test result is automatically compared with the initially set standard value to determine whether the product is qualified;

[0043] After the detection is completed, the lifting cylinder 801 drives the electric connector 803 to move upward to the top of the molded case circuit breaker body 5 to prevent the molded case circuit breaker body 5 from touching the electric connector 803 during subsequent rotation. The electric telescopic rod 901 resets the operating handle on the molded case circuit breaker body 5 through the U-shaped push block 903, and then drives the U-shaped push block 903 to reset to prevent the operating handle from touching the U-shaped push block 903 during subsequent rotation of the molded case circuit breaker body 5. Then, the push plate 405 is pushed backward into the interior of the hollow rotating cylinder 403, so that the push plate 405 drives the hollow frame 404, the limit rod 407 and the block 406 to move backward. Then, the hollow frame 404 will squeeze the spring 408, and the block 406 will move out from the front end slot 16. At this time, the hollow rotating cylinder 403 can be rotated horizontally. After the hollow rotating cylinder 403 rotates ninety degrees counterclockwise, the push plate 405 is released. The push plate 405 moves toward the outside of the hollow rotating cylinder 403 under the action of the spring 408, so that the clamping block 406 is clamped in the inside of the right clamping slot 16, and then the hollow rotating cylinder 403 is limited and fixed. At the same time, the hollow rotating cylinder 403 will also synchronously drive the clamping plate 411 to rotate ninety degrees counterclockwise, so that the clamping plate 411 drives the U-shaped connecting block 412 and the slider 413 to rotate ninety degrees, and then the slider 413 will abut against the protrusion 18, and the protrusion 18 will push the slider 413 outward, so that the slider 413 drives the U-shaped connecting block 412 and the clamping plate 411 to lose the clamping and fixing effect on the molded case circuit breaker body 5. At this time, the molded case circuit breaker body 5 can be pulled out from the front to complete the unloading work of the molded case circuit breaker.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A molded case circuit breaker automatic on-off withstand voltage and loop resistance detection device, comprising a base (1), characterized in that: A workbench (3) is rotatably mounted in the middle of the interior of the base (1) via a rotating mechanism (2), a detection mechanism (4) is arranged inside the workbench (3), the detection mechanism (4) comprises a hollow fixed cylinder (401), and the hollow fixed cylinder (401) is arranged in the middle of the upper end of the workbench (3), a hollow rotating cylinder (403) is rotatably mounted in the middle of the upper end of the hollow fixed cylinder (401) via a connecting shaft (402), a hollow frame (404) is sleeved on the circumferential surface of the connecting shaft (402), a push plate (405) and a limit rod (407) are respectively arranged on the outer walls of the front and rear sides of the hollow frame (404), the push plate (405) and the limit rod (407) are respectively inserted into the front and rear ends of the hollow rotating cylinder (403), a clamping block (406) is arranged on the lower surface of the push plate (405), and the clamping block (406) is clamped on The inner wall of the hollow fixed cylinder (401), the circumferential surface of the limit rod (407) is sleeved with a spring 1 (408), and the front and rear ends of the spring 1 (408) are respectively in contact with the outer wall of the hollow frame (404) and the inner wall of the hollow rotating cylinder (403), and the front and rear ends of the hollow rotating cylinder (403) are both movably connected to hollow connecting blocks (410) through spring 2 (409), and the two hollow connecting blocks (410) are connected to each other. ) are provided with a clamping plate (411) at one end away from the hollow rotating cylinder (403), a U-shaped connecting block (412) is provided at the lower end of the two groups of the clamping plates (411), and a sliding block (413) is provided at the lower end of the two U-shaped connecting blocks (412), and a molded case circuit breaker body (5) is clamped and fixed between the two groups of the clamping plates (411), and the molded case circuit breaker body (5) is placed on the upper surface of the hollow rotating cylinder (403).

2. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breaker according to claim 1, characterized in that: The upper surface of the workbench (3) is provided with an arc-shaped movable groove (17), and two groups of arc-shaped movable grooves (17) are arranged in a circular array. The lower ends of the two sliding blocks (413) are respectively slidably installed inside the front and rear ends of the two arc-shaped movable grooves (17). The left and right ends of the two arc-shaped movable grooves (17) are both provided with protrusions (18), and the side walls of the protrusions (18) are designed to be arc-shaped.

3. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breaker according to claim 1, characterized in that: The front inner wall and the right inner wall of the hollow fixed cylinder (401) are both provided with a clamping groove (16), and the clamping block (406) is clamped inside the clamping groove (16) at the front end.

4. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breaker according to claim 1, characterized in that: A telescopic through slot (13) is provided in the middle of the front end of the hollow rotating cylinder (403), the front end of the push plate (405) passes through the telescopic through slot (13) and extends to the front end of the hollow rotating cylinder (403), a limiting through slot (14) is provided in the middle of the rear end of the hollow rotating cylinder (403), the rear end of the limiting rod (407) is inserted into the inside of the limiting through slot (14), and mounting slots (15) are provided in the middle of the front and rear ends of the hollow rotating cylinder (403), and the mounting slots (15) are arranged above the telescopic through slot (13), and the two groups of springs (409) and hollow connecting blocks (410) are respectively arranged inside the two groups of mounting slots (15).

5. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breaker according to claim 1, characterized in that: The rotating mechanism (2) comprises a longitudinal rotating motor (201), the longitudinal rotating motor (201) being arranged at the front end of the upper surface of the base (1), the power output end of the longitudinal rotating motor (201) being transmission-connected to a rotating shaft 1 (202), a mounting seat (203) being arranged at the rear end of the rotating shaft 1 (202), a transverse rotating motor (204) being arranged in the middle of the mounting seat (203), the power output end of the transverse rotating motor (204) being transmission-connected to a rotating shaft 2 (205), and the upper end of the rotating shaft 2 (205) being fixedly connected to the lower surface of the workbench (3).

6. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breakers according to claim 5, characterized in that: A rotating shaft three (206) is arranged on the outer wall at the rear end of the mounting seat (203); a fixing block (207) is rotatably connected to the rear end of the rotating shaft three (206); and the fixing block (207) is arranged at the rear end of the upper surface of the base (1); a longitudinal rotating groove (10) is provided in the middle of the base (1); and the lower end of the mounting seat (203) is arranged inside the longitudinal rotating groove (10).

7. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breakers according to claim 5, characterized in that: The inner wall of the mounting seat (203) is provided with an annular movable groove (12), and the front, rear, left and right side walls of the workbench (3) are all provided with limit support blocks (11), and the four limit support blocks (11) are all rotatably mounted inside the annular movable groove (12) by means of balls.

8. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breakers according to claim 1, characterized in that: The four corners of the upper surface of the workbench (3) are provided with upright posts (6), the upper ends of the four upright posts (6) are connected to a top plate (7), a plurality of groups of power supply mechanisms (8) are provided inside the left and right ends of the top plate (7), and an opening and closing mechanism (9) is provided in the middle of the top plate (7).

9. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breakers according to claim 8, characterized in that: The power supply mechanism (8) comprises a lifting cylinder (801), and the lifting cylinder (801) is arranged inside the top plate (7), a mounting block (802) is arranged at the lower end of the lifting cylinder (801), an electric connector (803) is arranged inside the mounting block (802), an automatic wire take-up drum (804) is arranged on the upper surface of the top plate (7), and the wires of the electric connector (803) are wound inside the automatic wire take-up drum (804).

10. The automatic on-off withstand voltage and loop resistance detection device for molded case circuit breaker according to claim 8, characterized in that: The opening and closing mechanism (9) comprises an electric telescopic rod (901), and the electric telescopic rod (901) is arranged inside the top plate (7); a moving block (902) is arranged at the left end of the electric telescopic rod (901); a U-shaped push block (903) is arranged at the lower end of the moving block (902); an operating handle at the upper end of the molded case circuit breaker body (5) is located in the middle of the U-shaped push block (903); a linear moving groove (904) is opened inside the lower end of the top plate (7); and the upper end of the moving block (902) is movably mounted inside the linear moving groove (904).

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