Performance detection device for connection terminal assembly of distribution box for building

Abstract

The invention provides a building distribution box connection terminal assembly performance detection device, and belongs to the field of distribution box connection terminal assembly detection, and the device comprises a detection table, and a fixing unit used for fixing a plurality of groups of connection terminals at the same time is arranged above the detection table. The upper end of the detection bench is provided with a twisting unit used for twisting the multiple groups of connecting terminal connecting wires at the same time. According to the invention, the fixing unit and the torsion unit can carry out fixation and torsion detection on a plurality of groups of connecting terminals in the same state and environment at the same time, so that the detection efficiency is improved, detection results of different connecting terminals in the same detection process can be compared with each other, and the detection accuracy is improved; by using the front and rear balance plates, left and right swinging of the connecting wire caused by the inertia of centrifugal force on the bearing assembly in the torsion detection process can be effectively avoided, the balance stability of the connecting wire is improved, the stable torsion on the connecting terminal is ensured, and the real and effective detection result is ensured.

Description

Technical Field

[0001] The invention relates to the field of detection of a connection terminal assembly of a distribution box, and in particular to a performance detection device for a connection terminal assembly of a distribution box for a building. Background Art

[0002] The distribution box is the key point of power distribution in building facilities. It is responsible for receiving, distributing and controlling power. The connection terminal is one of the important components of the distribution box. The connection terminal provides the distribution point of current from the main power supply to each branch circuit. Therefore, the quality of the connection terminal directly affects the performance of the distribution box. In order to ensure the high quality of the connection terminal, it is necessary to perform torque performance testing on the connection terminal after production to detect the torque that the connection terminal bears during installation to ensure the stability of its connection; appropriate torque can prevent the connection from loosening, avoid poor contact or arcing, and ensure the continuity and reliability of power transmission. Improper torque may cause the connection to be too tight or too loose. The former may cause damage to the terminal or wire, and the latter may cause increased contact resistance, overheating or even fire.

[0003] However, the following problems exist in the process of torque performance testing of connection terminals: (1) The connection terminals are generally fixed and torque performance tested separately. This method not only reduces the overall testing efficiency, but also different connection terminals are affected by the testing state and environment, resulting in the test results under the same torque conditions not having a comparative reference, and the accuracy of the test results is low.

[0004] (2) During the torsion test, the connecting wire at the lower end of the connecting terminal is easily affected by the centrifugal force of the load-bearing part and tends to sway left and right. The balance stability of the connecting wire is poor. The connecting wire is affected by uncertain external forces, which will cause the torque acting on the connecting terminal to be unstable, thus affecting the authenticity and effectiveness of the test results.

[0005] Therefore, in order to solve the problems existing in the torque performance detection process of the connecting terminal, the present invention provides a performance detection device for the connecting terminal assembly of a building distribution box. Summary of the invention

[0006] The present invention provides a performance testing device for connecting terminal assemblies of a distribution box for buildings, comprising a testing platform, a fixing unit for simultaneously fixing a plurality of connecting terminals is arranged above the testing platform, and a twisting unit for simultaneously twisting connecting wires of the plurality of connecting terminals is arranged at the upper end of the testing platform; the fixing unit comprises a horizontal plate arranged above the testing platform, a clamping assembly evenly arranged on the left and right is arranged below the horizontal plate, the clamping assembly is composed of arc-shaped clamping plates symmetrical on the left and right, and a moving assembly for driving the left and right arc-shaped clamping plates in different clamping assemblies to move simultaneously is arranged at the lower end of the horizontal plate; the twisting unit comprises a twisting assembly arranged at the upper end of the testing platform and corresponding to the clamping assembly one by one The torsion assembly includes a rotating disk rotatably mounted on the detection table, a supporting assembly is arranged above the rotating disk, a threading barrel is penetrated by the rotating disk, a circumferentially evenly arranged resistance plate is arranged inside the threading barrel, and a pressure spring evenly arranged up and down is connected between the resistance plate and the inner wall of the threading barrel, the lower end of the threading barrel is plugged into a rectangular plate, a load-bearing assembly is arranged below the rectangular plate, and a rotating assembly for driving multiple groups of rotating disks to rotate synchronously is arranged on the upper end of the detection table; the supporting assembly includes an arc-shaped supporting plate obliquely arranged above the rotating disk, the load-bearing assembly includes a hanging rod, a tray is threadedly mounted on the lower end of the hanging rod, and a balance plate symmetrical about the tray is installed at the lower end of the rectangular plate.

[0007] In one possible implementation, a cover plate is installed on the upper end of the arc-shaped clamping plate, a square plate is installed on the upper end of the side close to the left and right cover plates in the same group of clamping components, a positioning rod is installed on the left end of the square plate on the right, and a positioning hole that slides with the positioning rod is opened on the square plate on the left.

[0008] In one possible implementation, the rotating disk is provided with a sliding groove that is slidably connected to the threading barrel, the rectangular plate is slidably connected to the lower end of the rotating disk, the arc-shaped support plates are arranged above the mounting blocks that are slidably connected to the corresponding rotating disk, the mounting blocks and the threading barrel are on the same radial line of the rotating disk, the threading barrel and the mounting block are both equipped with moving blocks that are slidably connected to the upper end of the rotating disk at the front end, and a threaded rod that is rotatably connected to the rotating disk is threadedly connected between the left and right moving blocks.

[0009] In one possible implementation, an elastic telescopic rod is arranged between two adjacent threaded rods on the left and right, a cross clamp is installed at the left end of the elastic telescopic rod, and a clamp plate is installed at the right end of the elastic telescopic rod. Except for the rightmost threaded rod, the right ends of the remaining threaded rods are provided with a cross groove that matches the cross clamp, and except for the leftmost threaded rod, the left ends of the remaining threaded rods are provided with a clamp groove that matches the clamp plate.

[0010] In one possible implementation, the supporting assembly also includes a mounting plate arranged above the mounting block, a front-to-rear symmetrical slide plate is installed at the upper end of the mounting plate, the lower end of the arc-shaped support plate is hinged to the left end of the mounting plate, the upper end of the arc-shaped support plate is hinged to a connecting rod located between the front and rear slide plates, the other end of the connecting rod is hinged to a pin shaft which is slidably connected to the front and rear slide plates, the pin shaft passes through the rear slide plate and is rotatably connected to an adjustment block, a plurality of sockets evenly arranged on the left and right are opened on the mounting plate, and the adjustment block is plugged into the corresponding sockets through the plug rod.

[0011] In one possible implementation, the upper end of the detection platform is equipped with guide columns that are symmetrical on the left and right and are slidably connected to the horizontal plate. Scale lines are engraved on the outside of the guide columns. A top plate is installed between the upper ends of the guide columns. A hydraulic cylinder is installed on the upper end of the top plate. The pushing end of the hydraulic cylinder slides through the top plate and is connected to the horizontal plate.

[0012] In a possible implementation, the upper end of each mounting block is provided with a threaded telescopic rod whose telescopic section is rotatably connected to the corresponding mounting plate, and the upper end of the movable block opposite to the mounting block is provided with a guide rod which is slidably connected to the mounting plate up and down.

[0013] In one possible implementation, the left and right arc-shaped clamping plates in the same group of clamping assemblies are both equipped with an L-shaped rod that is slidably connected to the horizontal plate on the left and right sides, and the moving assembly includes two push rods distributed up and down, the push rod located at the top is fixedly connected to the L-shaped rod on the left side of the different clamping assemblies, and is slidably connected to the L-shaped rod on the right side, the push rod located at the bottom is fixedly connected to the L-shaped rod on the right side of the different clamping assemblies, and is slidably connected to the L-shaped rod on the left side, the upper and lower push rods are located in the middle of the left and right adjacent clamping assemblies. The parts are both equipped with racks, and the lower end of the horizontal plate is equipped with vertical plates that are alternately distributed with the clamping assemblies, and a connecting gear that is rotatably connected to the vertical plates is meshed between the upper and lower racks, and the left end of the push rod located at the top is connected to the pushing end of the cylinder, and the cylinder is installed at the lower end of the horizontal plate.

[0014] In one possible implementation, the rotating assembly includes an outer gear ring fixedly mounted on the outside of a rotating disk, a same transmission gear is meshed between two adjacent outer gear rings on the left and right, the left side of the outer gear ring located on the far left is meshed with the same transmission gear, both the outer gear ring and the transmission gear are rotatably connected to the detection platform, the lower end of the transmission gear located on the far left is connected to the output shaft of a driving motor that rotates through the detection platform, and the driving motor is installed at the lower end of the detection platform.

[0015] In a possible implementation, the upper end of the abutment plate is provided with an outwardly inclined inclined section, and evenly distributed balls are rollingly installed on the vertical section and the inclined section of the abutment plate.

[0016] Beneficial effects of the present invention: 1. The fixing unit and torsion unit adopted in the present invention can simultaneously perform fixation and torque detection on multiple groups of connection terminals in the same state and environment, which not only improves the detection efficiency of the connection terminals, but also can compare and refer to the detection results of different connection terminals in the same detection process to improve the accuracy of the detection and enhance the reliability of the detection data.

[0017] 2. The present invention uses front and rear balance plates to ensure that the load-bearing components are always in a natural drooping state, effectively avoiding the left and right swaying of the connecting line caused by the centrifugal inertia of the load-bearing components during the torsion detection process, reducing the uncertain external force applied to the connecting line during the detection, and increasing the balance stability of the connecting line, thereby ensuring that the connecting line is only subjected to a single downward vertical force, thereby ensuring the authenticity and effectiveness of the detection results.

[0018] 3. The present invention utilizes an inclined arc-shaped support plate to fit the middle part of the inclined connecting line to support it, thereby ensuring that the connecting line is always in a naturally inclined state, preventing the connecting line from swinging during rotation detection and causing the connecting terminal to be subjected to unstable torque, thereby affecting the authenticity of the detection result.

[0019] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a performance detection device for a terminal assembly of a distribution box for a building provided in an embodiment of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing unit of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the rotating assembly and the load-bearing assembly of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the twisting assembly and the supporting assembly of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the torsion assembly and the load-bearing assembly of the present invention.

[0027] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of area A in the middle.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the elastic telescopic rod, the cross clamping block and the clamping plate of the present invention.

[0029] In the figure: 1. test table; 111. guide column; 112. top plate; 113. hydraulic cylinder; 114. threaded telescopic rod; 115. guide rod; 2. fixing unit; 21. horizontal plate; 211. arc clamping plate; 212. cover plate; 213. square plate; 214. positioning rod; 221. L-shaped rod; 222. push rod; 223. rack; 224. connecting gear; 225. cylinder; 3. torsion unit; 31. rotating disk; 311. threading barrel; 312. resisting plate; 313. resisting spring ; 314, rectangular plate; 315, hanging rod; 316, tray; 318, balance plate; 321, sliding groove; 322, arc support plate; 323, mounting block; 324, moving block; 325, threaded rod; 326, elastic telescopic rod; 327, cross block; 328, card plate; 331, mounting plate; 332, slide plate; 333, connecting rod; 334, adjusting block; 335, jack; 336, plug rod; 341, outer gear ring; 342, transmission gear; 343, driving motor. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] See also Figure 1 A performance testing device for a terminal assembly of a distribution box for a building comprises a testing platform 1, a fixing unit 2 for simultaneously fixing a plurality of connection terminals is arranged above the testing platform 1, and a twisting unit 3 for simultaneously twisting a plurality of connection terminals is arranged at the upper end of the testing platform 1.

[0032] See also Figure 1 , Figure 2 and Figure 3 The fixing unit 2 includes a horizontal plate 21 arranged above the detection table 1, and a clamping assembly evenly arranged on the left and right is arranged below the horizontal plate 21. The clamping assembly consists of a left-right symmetrical arc-shaped clamping plate 211. A cover plate 212 is installed on the upper end of the arc-shaped clamping plate 211. Square plates 213 are installed on the upper ends of the sides where the left and right cover plates 212 are close to each other. A positioning rod 214 is installed on the left end of the square plate 213 on the right, and a positioning hole that slides with the positioning rod 214 is opened on the square plate 213 on the left. A moving assembly for driving the left and right arc-shaped clamping plates 211 in different clamping assemblies to move simultaneously is arranged at the lower end of the horizontal plate 21.

[0033] See also Figure 1 and Figure 2 , the sides of the left and right arc-shaped clamping plates 211 in the same group of clamping assemblies that are away from each other are both equipped with L-shaped rods 221 that are slidably connected to the horizontal plate 21 left and right, and the moving assembly includes two push rods 222 distributed up and down, the push rod 222 located at the top is fixedly connected to the L-shaped rod 221 located on the left side of different clamping assemblies, and is slidably connected to the L-shaped rod 221 located on the right, the push rod 222 located at the bottom is fixedly connected to the L-shaped rod 221 located on the right side of different clamping assemblies, and is slidably connected to the L-shaped rod 221 located on the left side, the upper and lower push rods 222 are located in the middle of the left and right adjacent clamping assemblies. The parts are both equipped with racks 223, and the lower end of the horizontal plate 21 is equipped with vertical plates alternately distributed with the clamping assemblies. A connecting gear 224 that is rotatably connected to the vertical plate is meshed between the upper and lower racks 223, and the left end of the push rod 222 located at the top is connected to the pushing end of the cylinder 225, and the cylinder 225 is installed at the lower end of the horizontal plate 21.

[0034] During operation: first, multiple connection terminals need to be fixed by the fixing unit 2, and a connection wire is installed at the lower end of the connection terminal. During this process, the connection terminals to be tested can be placed one by one between the left and right arc-shaped clamping plates 211 of different clamping components, and the mounting hole at the upper end of the connection terminal is passed through the positioning rod 214. The positioning rod 214 can be used to pre-position the connection terminal so that the connection terminal can be clamped smoothly and stably later. Then, the push rod 222 located at the top can be pushed to move to the right by the cylinder 225. The push rod 222 drives the L-shaped rod 221 on the left side of the different clamping components to move to the right synchronously. The L-shaped rod 221 on the left side drives the arc-shaped clamping plate 211, the cover plate 212 and the square plate 213 on the left side to move to the right synchronously. At the same time, with the cooperation of the upper and lower racks 223 and the connecting gear 224, the push rod 222 located at the bottom drives the L-shaped rod 221 on the right side to move to the right The L-shaped rod 221 on the right side drives the arc-shaped clamping plate 211, the cover plate 212 and the square plate 213 on the right side to move left synchronously, and the square plate 213 on the right side in the same group of clamping components drives the positioning rod 214 to gradually insert into the positioning hole of the square plate 213 on the left side. At the same time, the left and right cover plates 212 gradually contact with the upper ends of the connecting terminals until the left and right arc-shaped clamping plates 211 and the left and right square plates 213 in different clamping components move toward each other at the same time until they are tightly against the connecting terminals, thus completing the fixation of the connecting terminals and firmly clamping multiple connecting terminals at the same time, which is beneficial to improving the overall detection efficiency. In addition, with the cooperation of the cover plate 212, the square plate 213, the positioning rod 214 and the positioning holes, different connecting terminals can be stably clamped in the same state, thereby avoiding the lack of comparative reference for subsequent torque performance test results due to the different states of different connecting terminals when fixed.

[0035] See also Figure 1 , Figure 4 , Figure 6 and Figure 7 The torsion unit 3 includes a torsion component arranged at the upper end of the detection platform 1 and corresponding to the clamping component one by one. The torsion component includes a rotating disk 31 rotatably installed on the detection platform 1, and a supporting component is arranged above the rotating disk 31. A threading barrel 311 is arranged through the rotating disk 31. The threading barrel 311 is provided with a circumferentially uniformly arranged abutment plate 312 inside. An outwardly inclined inclined section is installed at the upper end of the abutment plate 312. The vertical section and the inclined section of the abutment plate 312 are both rollingly installed with uniformly arranged balls. A pressure spring 313 evenly arranged up and down is connected between the support plate 312 and the inner wall of the threading tube 311. The lower end of the threading tube 311 is fixedly inserted on the rectangular plate 314. A load-bearing component is arranged below the rectangular plate 314. The load-bearing component includes a hanging rod 315. A tray 316 is threadedly installed on the lower end of the hanging rod 315. A balance plate 318 symmetrical about the tray 316 is installed at the lower end of the rectangular plate 314. A rotating component for driving multiple groups of rotating disks 31 to rotate synchronously is arranged at the upper end of the detection table 1.

[0036] During operation: after the connection terminal is fixed, the connecting wire at the lower end of the connection terminal can be passed through the threading barrel 311 from top to bottom, and the connecting wire can be passed through the middle of the circumferentially evenly arranged push plate 312. During this process, the inclined section and the ball at the upper end of the push plate 312 first contact the connecting wire. The inclined section and the ball are conducive to the connecting wire to quickly and smoothly enter between the push plates 312. The use of the ball can also reduce the friction generated between the connecting wire and the push plate 312 during the subsequent detection process. After being squeezed by the connecting wire, the push plate 312 compresses the push spring 313. Under the action of the push spring 313, the circumferentially arranged push plate 312 implements elastic circumferential limitation on the connecting wire. Then, the existing The technology connects the upper end of the hanging rod 315 to the lower end of the connecting line (such as using a cable tie or a rope), and then puts the required weights on the hanging rod 315 from bottom to top, and threads the tray 316 on the lower end of the hanging rod 315 to support the weights on the hanging rod 315. The weights apply a downward pulling force to the connecting line to ensure that the connecting line is in a vertically taut state. In addition, during the detection process, the tray 316 can be flexibly removed from the hanging rod 315, and the number or weight of the weights on the hanging rod 315 can be changed according to the detection requirements to change the tension on the connecting line, thereby changing the torque on the connecting terminal, thereby increasing the diversity of the detection results, which is conducive to better evaluating the torque performance of the connecting terminal.

[0037] In addition, the weight can be limited circumferentially by putting it on the hanging rod 315. At the same time, the balance plates 318 before and after the tray 316 can also limit the tray 316 circumferentially without applying external force to the tray 316, thereby ensuring that the hanging rod 315, the weight and the tray 316 are in a natural drooping state, effectively avoiding the left and right swinging of the hanging rod 315, the weight and the tray 316 due to the inertia of centrifugal force during the subsequent torsion detection process, reducing the unstable external force on the connecting line during the detection, and increasing the balance stability of the connecting line, thereby ensuring that the connecting line is only subjected to a single downward vertical force, thereby improving the authenticity and effectiveness of the detection results.

[0038] See also Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 8The rotating disk 31 is provided with a sliding groove 321 slidably connected to the threading barrel 311, and the rectangular plate 314 is slidably connected to the lower end of the rotating disk 31. The supporting assembly includes an arc-shaped support plate 322 obliquely arranged above the rotating disk 31, and the arc-shaped support plate 322 is arranged above the mounting block 323 slidably connected to the rotating disk 31. The mounting block 323 and the threading barrel 311 are on the same radial line of the rotating disk 31. The front ends of the threading barrel 311 and the mounting block 323 are both equipped with a moving block 324 slidably connected to the upper end of the rotating disk 31. A threaded rod 325 rotatably connected to the rotating disk 31 is threadedly connected between the moving blocks 324, and an elastic telescopic rod 326 is arranged between the two adjacent threaded rods 325 on the left and right. A cross clamping block 327 is installed on the left end of the elastic telescopic rod 326, and a clamping plate 328 is installed on the right end of the elastic telescopic rod 326. Except for the rightmost threaded rod 325, the right ends of the remaining threaded rods 325 are provided with a cross groove that cooperates with the cross clamping block 327, and except for the leftmost threaded rod 325, the left ends of the remaining threaded rods 325 are provided with a clamping groove that cooperates with the clamping plate 328.

[0039] See also Figure 1 and Figure 5 The supporting assembly also includes a mounting plate 331 arranged above the mounting block 323, a front-to-rear symmetrical slide plate 332 is mounted on the upper end of the mounting plate 331, the lower end of the arc-shaped support plate 322 is hinged to the left end of the mounting plate 331, a connecting rod 333 located between the front and rear slide plates 332 is hinged to the upper end of the arc-shaped support plate 322, the other end of the connecting rod 333 is hinged to a pin shaft slidably connected to the front and rear slide plates 332, the pin shaft passes through the rear slide plate 332 and is rotatably connected to the adjusting block 334, a plurality of sockets 335 evenly arranged on the left and right are opened on the mounting plate 331, and the adjusting block 334 is plugged into the corresponding sockets 335 through the plug rod 336.

[0040] During operation: During the torque performance test, the inclined arc support plate 322 can be used to fit the middle part of the inclined connecting line to support it, but the arc support plate 322 does not exert additional force on the connecting line, but only ensures that the connecting line is always in a naturally inclined state to prevent the connecting line from swinging during the torsion test, causing the connecting terminal to be subjected to unstable torque, thereby affecting the authenticity of the test result.

[0041] Before the test, the elastic telescopic rod 326 can be placed between the left and right adjacent threaded rods 325, and the cross block 327 at the left end of the elastic telescopic rod 326 can be inserted into the cross groove of the corresponding threaded rod 325, and the card plate 328 at the right end of the elastic telescopic rod 326 can be inserted into the card groove of the corresponding threaded rod 325, so that the multiple threaded rods 325 form a whole, and then the leftmost threaded rod 325 can be rotated, and the remaining threaded rods 325 can rotate synchronously. At this time, the left and right moving blocks 324 on the same threaded rod 325 can respectively drive the threading barrel 311 and the mounting block 323 to move synchronously with the rotating disk 31 along the sliding groove 321. When the threading barrel 311 moves, the rectangular plate 314, the balance plate 318 and the connecting wire are driven to move synchronously, and the hanging rod 315, the weight and the tray 316 move synchronously therewith. While ensuring the stability of the connecting wire, the inclination angle between the connecting wire and the connecting terminal is changed, so that the connecting terminal can be subjected to torque in different inclination directions, simulating various inclination states of the connecting terminal in actual use, thereby obtaining a more realistic test result.

[0042] At the same time, the mounting block 323 drives the mounting plate 331, the slide plate 332, the connecting rod 333, the adjusting block 334 and the arc support plate 322 to move synchronously. Since the inclination angle of the connecting line changes at this time, the arc support plate 322 is no longer in contact with the connecting line. To ensure that the arc support plate 322 always remains in contact with the connecting line, the adjusting block 334 can be slid along the mounting plate 331, and the adjusting block 334 drives the pin shaft to move synchronously along the slide plate 332. While the pin shaft moves, it drives the connecting rod 333 to rotate synchronously around the hinge points at both ends thereof. The connecting rod 333 drives the arc support plate 322 to rotate synchronously around the hinge points between it and the mounting plate 331 until the arc support plate 322 is in contact with the connecting line again. Then the adjusting block 334 can be fixed by the cooperation between the insertion rod 336 and the insertion hole 335, and so on, and the inclination angles of different arc support plates 322 can be adjusted one by one and kept consistent.

[0043] In the subsequent detection process, the elastic telescopic rod 326 can be taken out from between the left and right adjacent threaded rods 325 in the same manner to ensure that different threaded rods 325 do not interfere with each other. The multiple threaded rods 325 are connected into a whole through the elastic telescopic rod 326, which not only reduces the time required for adjusting the inclination angle of the connecting line one by one and improves the adjustment speed, but also allows different connecting lines to be adjusted to the same inclination angle and different arc support plates 322 to the same horizontal position, thereby improving the consistency between different connecting lines and ensuring that different connecting lines can always perform torque detection in the same state.

[0044] See also Figure 1 and Figure 5The upper end of the detection platform 1 is equipped with a guide column 111 which is symmetrical and connected to the horizontal plate 21 for sliding up and down. The guide column 111 is engraved with scale lines on the outside. A top plate 112 is installed between the upper ends of the guide columns 111. A hydraulic cylinder 113 is installed on the upper end of the top plate 112. The pushing end of the hydraulic cylinder 113 slides through the top plate 112 and is connected to the horizontal plate 21. The upper ends of the mounting blocks 323 are all equipped with a threaded telescopic rod 114 which is rotatably connected to the corresponding mounting plate 331 with a telescopic section. The upper end of the moving block 324 opposite to the mounting block 323 is equipped with a guide rod 115 which is connected to the mounting plate 331 for sliding up and down.

[0045] During operation: In order to enrich the diversity of the detection results, the length of the connecting wire at the lower end of the connecting terminal can be changed. The change in the length of the connecting wire also affects the torque performance of the connecting terminal. Before the fixing unit 2 fixes the connecting terminal, the hydraulic cylinder 113 can be used to push the cross plate 21 to move up and down accordingly along the left and right guide columns 111. The cross plate 21 drives the fixing unit 2 to move synchronously as a whole. The guide column 111 not only supports and guides the up and down movement of the cross plate 21, but also can accurately control the height of the cross plate 21 through the scale line corresponding to the length of the connecting wire, so that the fixing unit 2 can fix and clamp the connecting terminals of connecting wires of different lengths. When the length of the connecting wire changes, in order to ensure that the arc-shaped support plate 322 always fits the middle part of the connecting wire and maintains the balance and stability of the connecting wire, the telescopic section of the threaded telescopic rod 114 can be rotated to make the mounting plate 331 move up and down along the guide rod 115, and the height of the arc-shaped support plate 322 changes synchronously therewith.

[0046] See also Figure 1 and Figure 4 The rotating assembly includes an outer gear ring 341 fixedly mounted on the outside of the rotating disk 31, a same transmission gear 342 is meshed between two adjacent outer gear rings 341 on the left and right, a same transmission gear 342 is meshed on the left side of the outer gear ring 341 located on the leftmost side, the outer gear ring 341 and the transmission gear 342 are both rotatably connected to the detection platform 1, the lower end of the transmission gear 342 located on the leftmost side is connected to the output shaft of a driving motor 343 that rotates through the detection platform 1, and the driving motor 343 is installed at the lower end of the detection platform 1.

[0047] During operation: in the process of testing the torque performance of the connecting terminal, the driving motor 343 can be used to drive the transmission gear 342 on the far left to rotate counterclockwise, and the transmission gear 342 on the far left drives the outer gear ring 341 on the far left to rotate synchronously with the rotating disk 31 clockwise. With the cooperation of the outer gear ring 341 and the transmission gear 342, the outer gear ring 341 and the rotating disk 31 in different torsion assemblies all keep rotating synchronously clockwise, and the rotating disk 31 drives the torsion assembly, the supporting assembly, the load-bearing assembly and the connecting wire to rotate synchronously, while the connecting terminal always keeps a stationary state, and the connection point between the connecting wire and the connecting terminal is twisted. After twisting for a certain period of time, it can be observed whether there is any torque between the connecting terminal and the connecting wire due to the test torque. Damage caused by excessive force or looseness caused by insufficient connection strength between the connection terminal itself and the connection line during the test is checked to verify whether the connection terminal can maintain a stable connection with the connection line within the specified torque range, thereby ensuring the reliability and safety of the electrical connection. In this process, the torque applied to the connection terminal can be monitored in real time through the existing torque sensor, and the torque value and detection time need to be recorded for subsequent analysis of the test results. At the same time, multiple groups of connection terminals are fixed and torque tested, which not only improves the detection efficiency of the connection terminals, but also can compare and refer to the test results of different connection terminals in the same detection process to improve the accuracy of the detection and enhance the reliability of the detection data.

[0048] In addition, the rotation speed of the rotating disk 31 can be changed as needed, or the gravity, the inclination angle or the length of the connecting line can be changed according to the above method to simulate various situations encountered by the connecting terminal in actual use and enrich the detection environment of the connecting terminal. At the same time, torque detection can be performed on different groups of connecting terminals under the same environment, and torque detection can be performed on the same group of connecting terminals under different environments for multiple times, so as to change the torque applied to the connecting terminals during detection and improve the diversity and accuracy of the detection results. It should be noted that various data need to be recorded during detection for subsequent analysis.

[0049] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for testing the performance of a connecting terminal assembly of a building distribution box, comprising a testing platform (1), characterized in that: A fixing unit (2) for simultaneously fixing multiple groups of connection terminals is arranged above the detection platform (1), and a twisting unit (3) for simultaneously twisting the connection wires of the multiple groups of connection terminals is arranged at the upper end of the detection platform (1); The fixing unit (2) comprises a horizontal plate (21) arranged above the detection platform (1), and clamping assemblies evenly arranged on the left and right are arranged below the horizontal plate (21), the clamping assemblies are composed of arc-shaped clamping plates (211) that are symmetrical on the left and right, and a moving assembly for driving the left and right arc-shaped clamping plates (211) in different clamping assemblies to move simultaneously is arranged at the lower end of the horizontal plate (21); The twisting unit (3) comprises a twisting assembly arranged at the upper end of the detection platform (1) and corresponding to the clamping assembly one by one, the twisting assembly comprising a rotating disk (31) rotatably mounted on the detection platform (1), a supporting assembly arranged above the rotating disk (31), a threading barrel (311) penetrating the rotating disk (31), a circumferentially evenly arranged abutment plate (312) arranged inside the threading barrel (311), a vertically evenly arranged abutment spring (313) connected between the abutment plate (312) and the inner wall of the threading barrel (311), the lower end of the threading barrel (311) plugged into a rectangular plate (314), a load-bearing assembly arranged below the rectangular plate (314), and a rotating assembly for driving the plurality of rotating disks (31) to rotate synchronously arranged at the upper end of the detection platform (1); The supporting assembly comprises an arc-shaped supporting plate (322) tiltedly arranged above the rotating disk (31), and the load-bearing assembly comprises a hanging rod (315), a tray (316) is threadedly mounted on the lower end of the hanging rod (315), and a balancing plate (318) symmetrically arranged front and rear about the tray (316) is mounted on the lower end of the rectangular plate (314).

2. A performance detection device for a connection terminal assembly of a building distribution box according to claim 1, characterized in that: The upper ends of the arc-shaped clamping plates (211) are both installed with cover plates (212); the upper ends of the adjacent sides of the left and right cover plates (212) in the same group of clamping components are both installed with square plates (213); the left end of the square plate (213) on the right side is installed with a positioning rod (214); and the square plate (213) on the left side is provided with a positioning hole that slidably cooperates with the positioning rod (214).

3. A performance detection device for a connection terminal assembly of a building distribution box according to claim 1, characterized in that: The rotating disk (31) is provided with a sliding groove (321) slidably connected to the threading barrel (311); the rectangular plate (314) is slidably connected to the lower end of the rotating disk (31); the arc-shaped support plate (322) is arranged above a mounting block (323) slidably connected to the corresponding rotating disk (31); the mounting block (323) and the threading barrel (311) are located on the same radial line of the rotating disk (31); the front ends of the threading barrel (311) and the mounting block (323) are both provided with a moving block (324) slidably connected to the upper end of the rotating disk (31); a threaded rod (325) rotatably connected to the rotating disk (31) is threadedly connected between the left and right moving blocks (324).

4. A performance detection device for a connection terminal assembly of a building distribution box according to claim 3, characterized in that: An elastic telescopic rod (326) is arranged between two adjacent threaded rods (325) on the left and right, a cross clamping block (327) is installed at the left end of the elastic telescopic rod (326), and a clamping plate (328) is installed at the right end of the elastic telescopic rod (326). Except for the rightmost threaded rod (325), the right ends of the remaining threaded rods (325) are provided with a cross groove matched with the cross clamping block (327), and except for the leftmost threaded rod (325), the left ends of the remaining threaded rods (325) are provided with a clamping groove matched with the clamping plate (328).

5. A performance detection device for a connection terminal assembly of a building distribution box according to claim 3, characterized in that: The supporting assembly also includes a mounting plate (331) arranged above the mounting block (323), the upper end of the mounting plate (331) is provided with a front-to-rear symmetrical slide plate (332), the lower end of the arc-shaped support plate (322) is hinged to the left end of the mounting plate (331), the upper end of the arc-shaped support plate (322) is hinged to a connecting rod (333) located between the front and rear slide plates (332), the other end of the connecting rod (333) is hinged to a pin shaft slidably connected to the front and rear slide plates (332), the pin shaft passes through the rear slide plate (332) and is rotatably connected to an adjusting block (334), a plurality of plug holes (335) evenly arranged left and right are provided on the mounting plate (331), and the adjusting block (334) is plugged into the corresponding plug holes (335) through an insert rod (336).

6. A performance detection device for a connection terminal assembly of a building distribution box according to claim 1, characterized in that: A guide column (111) is installed at the upper end of the detection platform (1) and is symmetrical with respect to each other and is slidably connected to the horizontal plate (21) up and down. The guide column (111) is engraved with scale lines on its exterior. A top plate (112) is installed between the upper ends of the guide columns (111). A hydraulic cylinder (113) is installed at the upper end of the top plate (112). The pushing end of the hydraulic cylinder (113) slides through the top plate (112) and is connected to the horizontal plate (21).

7. A performance detection device for a connection terminal assembly of a building distribution box according to claim 5, characterized in that: The upper ends of the mounting blocks (323) are all provided with threaded telescopic rods (114) whose telescopic sections are rotatably connected to the corresponding mounting plates (331); the upper ends of the moving blocks (324) opposite to the mounting blocks (323) are provided with guide rods (115) which are slidably connected to the mounting plates (331) up and down.

8. A performance detection device for a connection terminal assembly of a building distribution box according to claim 1, characterized in that: The left and right arc-shaped clamping plates (211) in the same group of clamping components are both installed with an L-shaped rod (221) slidably connected to the horizontal plate (21) on the left and right sides. The moving component includes two push rods (222) distributed up and down. The push rod (222) located at the top is fixedly connected to the L-shaped rod (221) located on the left side of the different clamping components, and is slidably connected to the L-shaped rod (221) located on the right side. The push rod (222) located at the bottom is connected to the L-shaped rod (221) located on the right side of the different clamping components. ) is fixedly connected and is slidably connected to the L-shaped rod (221) located on the left side. The upper and lower push rods (222) are both installed with racks (223) in the middle of the left and right adjacent clamping assemblies. The lower end of the horizontal plate (21) is installed with vertical plates distributed alternately with the clamping assemblies. A connecting gear (224) rotatably connected to the vertical plates is meshed between the upper and lower racks (223). The left end of the push rod (222) located at the top is connected to the pushing end of the cylinder (225), and the cylinder (225) is installed at the lower end of the horizontal plate (21).

9. A performance detection device for a connection terminal assembly of a building distribution box according to claim 1, characterized in that: The rotating assembly comprises an outer gear ring (341) fixedly mounted on the outside of the rotating disk (31); a same transmission gear (342) is meshed between two adjacent outer gear rings (341) on the left and right; a same transmission gear (342) is meshed on the left side of the outer gear ring (341) located on the leftmost side; the outer gear ring (341) and the transmission gear (342) are both rotatably connected to the detection platform (1); the lower end of the transmission gear (342) located on the leftmost side is connected to the output shaft of a driving motor (343) that rotates and penetrates the detection platform (1); and the driving motor (343) is installed at the lower end of the detection platform (1).

10. A performance detection device for a connection terminal assembly of a building distribution box according to claim 1, characterized in that: The upper end of the support plate (312) is provided with an outwardly inclined section, and evenly arranged balls are rollingly installed on the vertical section and the inclined section of the support plate (312).

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