Multilayer structure of test board

Abstract

The utility model discloses a multi-layer structure of a testboard, which comprises a cabinet body, a back plate and a driving piece for driving the back plate to move up and down are arranged in the cabinet body, a plurality of placing plates are arranged on the back plate at intervals from top to bottom, a plurality of placing layers are formed through the placing plates, a countertop is horizontally arranged on one side of the cabinet body, and a plurality of clamping grooves are formed in the countertop. And each placing plate can be flush with the deck plate through the driving piece. According to the utility model, multi-layer layout of the testboard can be realized, manual lifting of the circuit breaker from the table top to a certain height is replaced, personal danger possibly caused by manual placement of the circuit breaker from the table top to a high test position is avoided, the space utilization rate is effectively improved, the number of tests which can be carried out in parallel at the same time is increased, and the test efficiency is improved. Therefore, the testing efficiency of the circuit breaker is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker testing technology, specifically to a multi-layer structure of a test bench. Background Technology

[0002] A circuit breaker is a commonly used electrical device used to interrupt the current in a circuit in a timely manner when a fault such as a short circuit or overload occurs, thereby preventing accidents. During the factory acceptance testing of circuit breakers, circuit breakers (such as residual current circuit breakers) need to undergo a period of continuous energization testing. During this period, manual tests are also performed, including closing tests, checking the display screen and indicator lights, and testing the response of function keys.

[0003] Current power-on testing is generally performed on a test bench. When using a test bench, the circuit breaker must first be lifted onto the bench platform and then moved to the designated test position. Lifting and placing large circuit breakers during this process poses a high safety risk, as their weight makes lifting and placing them more strenuous. Especially when the circuit breaker is lifted to a certain height, improper handling could lead to accidental drops, causing equipment damage or personal injury. Therefore, for safety reasons, many test benches are designed with a single-layer layout. Existing conventional test benches can test multiple circuit breakers on the same layer, avoiding the dangers of falling during lifting and stacking, and reducing the physical exertion of operators. However, a single-layer layout also means low space utilization, limiting the number of tests that can be performed concurrently, thus affecting the testing efficiency of the circuit breakers. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-layer structure for a test bench, which can realize the multi-layer layout of the test bench, replace manual lifting of the circuit breaker from the table to a certain height, avoid the personal danger that may be caused by manually placing the circuit breaker from the table to a high test position, effectively improve space utilization, increase the number of tests that can be carried out in parallel at the same time, and thus improve the testing efficiency of the circuit breaker.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a multi-layer structure of a test bench, including a cabinet, a back panel and a drive unit that drives the back panel to move up and down, a number of placement plates are spaced apart from top to bottom on the back panel and form a number of placement layers through the placement plates, a table panel is horizontally provided on one side of the cabinet, and each placement plate can be flush with the table panel through the drive unit.

[0006] A further improvement of this utility model is that two guide rods are vertically and symmetrically arranged inside the cabinet, the driving component is an electric lead screw arranged between the two guide rods, the back plate is fixedly connected to the nut seat of the electric lead screw, and two connecting blocks are respectively slidably connected to the two guide rods on its back.

[0007] A further improvement of this utility model is that when the placement plate is flush with the tabletop, the distance between the plate and the tabletop is less than 1 cm.

[0008] A further improvement of this utility model is that a number of positioning plates are vertically spaced on the placement plate, and a placement position for placing a circuit breaker is formed between adjacent positioning plates.

[0009] A further improvement of this utility model is that the surface of the tabletop is a low-friction surface.

[0010] A further improvement of this utility model is that the cabinet includes a back panel and two side panels, the electric lead screw is disposed on the back panel, and the front of the cabinet is an open opening.

[0011] A further improvement of this utility model is that the placement plate is provided with at least three pieces, and each placement plate is provided with at least five positioning plates.

[0012] A further improvement of this utility model is that a control button corresponding to each placement board is provided on one side of the cabinet. After pressing the control button, the corresponding placement board is flush with the tabletop.

[0013] A further improvement of this utility model is that the tabletop includes a frame and a plurality of support rods arranged therein along the width of the frame. The two ends of the support rods are rotatably connected to the frame. All the support rods are arranged horizontally and have the same height. The height of the top of the support rod is the height of the tabletop 4.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model enables a multi-layer layout of the test bench by lifting and lowering the back plate and setting multiple placement layers on the back plate. It replaces manual labor in lifting the circuit breaker from the table to a certain height, avoiding the personal danger that may be caused by manually placing the circuit breaker from the table to a high test position, and effectively improving space utilization.

[0016] Each placement plate of this invention can be flush with the tabletop. The surface of the tabletop is a low-friction surface. In actual use, when the placement plate is flush with the tabletop, the circuit breaker placed on the tabletop can be directly pushed and slid onto the placement plate, reducing handling and thus reducing physical exertion.

[0017] Each placement plate of this invention is provided with at least five positioning plates, which can form multiple placement positions, thereby increasing the number of tests that can be carried out in parallel at the same time, and thus improving the testing efficiency of the circuit breaker.

[0018] In the energization test of circuit breakers, the circuit breaker needs to be continuously energized for a certain period of time to ensure its stability and safety under long-term current carrying capacity. During the energization period, other tests are performed on the circuit breaker, such as closing tests, display and indicator light checks, and function key response tests. The duration of the energization test is longer than the time required for other tests. In existing tests, even after other tests are completed, the circuit breaker cannot be removed until the energization time reaches the specified duration. This waiting period results in wasted manpower. However, the multi-layer structure of this utility model greatly increases the number of circuit breakers that can be placed. During testing, all circuit breakers can be energized at the same time, and then other tests can be performed on each circuit breaker one by one. When all other tests of all circuit breakers are completed, the energization time has reached the specified duration, and all circuit breakers can be removed and replaced with the next batch, greatly reducing waiting time and avoiding wasted manpower. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the back panel structure of this utility model.

[0021] Figure 3 This is a bottom view sectional diagram of the structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the countertop structure of this utility model.

[0023] In the diagram, 1-cabinet, 2-back panel, 3-placement board, 4-countertop, 5-electric screw, 6-connecting block, 7-positioning plate, 8-back panel, 9-guide rod, 10-frame, 11-bearing rod. Detailed Implementation

[0024] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1: Combination Figures 1-4 As can be seen, a multi-layer structure of a test bench includes a cabinet 1, a back panel 2 and a drive unit that moves the back panel 2 up and down, and several placement plates 3 are spaced apart from top to bottom on the back panel 2 to form several placement layers. A tabletop 4 is horizontally provided on one side of the cabinet 1, and each placement plate 3 can be flush with the tabletop 4 by the drive unit. The placement plates 3 are horizontally arranged.

[0026] The cabinet 1 has two vertically symmetrical guide rods 9. The driving component is an electric lead screw 5 set between the two guide rods 9. The back plate 2 is fixedly connected to the nut seat of the electric lead screw 5 and has two connecting blocks 6 on its back that are slidably connected to the two guide rods 9 respectively.

[0027] When the placement board 3 is flush with the tabletop 4, the distance between the board 3 and the tabletop 4 is less than 1cm.

[0028] The placement plate 3 has several positioning plates 7 vertically spaced on it, and the adjacent positioning plates 7 form a placement position for placing the circuit breaker. Each placement plate 3 is provided with a power-conducting component that cooperates with the placement position on it. The power-conducting component is a conventional component in the prior art that can energize the circuit breaker.

[0029] The surface of the tabletop 4 is a low-friction surface. Preferably, the surface of the placement plate 3 is also a low-friction surface.

[0030] Preferably, the tabletop 4 includes a frame 10 and a plurality of support rods 11 disposed within the frame 10 along its width. The two ends of each support rod 11 are rotatably connected to the frame 10. All support rods 11 are horizontally positioned and have the same height, with the top height of each support rod 11 being the height of the tabletop 4. The outer circumferential surface of each support rod 11 is a low-friction surface. The spacing between adjacent support rods 11 is less than 2 cm. Preferably, the difference between the top height of each support rod 11 and the height of the upper surface of the frame 10 does not exceed 1 cm.

[0031] By setting the support rod 11, the sliding friction can be changed to rolling friction compared to sliding directly on the flat plate surface. This facilitates the lateral movement of the circuit breaker on the platform 4, so that it can move more smoothly to the corresponding placement position.

[0032] The cabinet 1 includes a back panel 8 and two side panels. An electric screw 5 is mounted on the back panel 8. The front of the cabinet 1 is open. Preferably, the front of the cabinet 1, below the countertop 4, has double cabinet doors.

[0033] The placement plate 3 has at least three pieces, and each placement plate 3 has at least five positioning plates 7.

[0034] One side of the cabinet 1 is equipped with a control button corresponding to each placement board 3. After pressing the control button, the corresponding placement board 3 is flush with the countertop 4.

[0035] Optionally, this utility model can be set at the end of the production line, with the height of the platform 4 being the same as the height of the conveyor surface of the production line conveyor belt (preferably, the height of the platform 4 is slightly lower than the height of the conveyor surface of the conveyor belt). The circuit breaker can be moved directly onto the platform 4 as the conveyor belt moves, thereby further reducing the physical effort required to lift the circuit breaker onto the platform 4.

[0036] The working principle of the multi-layer structure of the test bench provided by the utility model is as follows: When in use, the circuit breaker is moved onto the test bench panel 4, and the electric screw 5 is activated to drive the back plate 2 to move, so that the bottom placement plate 3 is moved to be flush with the test bench panel 4. Then the circuit breaker is pushed and slid to the placement position on the placement plate 3. After the placement plate 3 is full, the electric screw 5 drives the back plate 2 to move down, so that the second to last layer placement plate 3 is moved to be flush with the test bench panel 4. Then the circuit breaker can be pushed and placed again. The above steps are repeated until all the placement plates 3 are full. Then the circuit breaker on the entire back plate can be energized for testing.

[0037] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A test bench multilayer structure, characterized by: The cabinet (1) is internally provided with a back plate (2) and a driving element for driving the back plate (2) to move up and down, the back plate (2) is provided with a plurality of placing plates (3) from top to bottom and forms a plurality of placing layers through the placing plates (3), and a horizontal table plate (4) is arranged on one side of the cabinet (1), and each placing plate (3) can be flush with the table plate (4) through the driving element.

2. A testbed multilayer structure according to claim 1, characterized in that: The cabinet (1) is vertically and symmetrically provided with two guide rods (9), the driving element is an electric screw rod (5) arranged between the two guide rods (9), the back plate (2) is fixedly connected to the nut seat of the electric screw rod (5) and is provided with two connecting blocks (6) respectively and slidably connected to the two guide rods (9) on the back surface.

3. A testbed multilayer structure according to claim 1, characterized in that: When the placing plate (3) is flush with the table plate (4), the spacing between the placing plate (3) and the table plate (4) is less than 1cm.

4. The multi-layer test stand structure of claim 1, wherein: A plurality of positioning plates (7) are vertically and spaced apart on the placing plate (3), and a placing position for placing a circuit breaker is formed between adjacent positioning plates (7).

5. The multi-layer test stand structure of claim 1, wherein: The surface of the table plate (4) is a low-friction surface.

6. A testbed multilayer structure according to claim 2, wherein: The cabinet (1) comprises a back plate (8) and two side plates, the electric screw rod (5) is arranged on the back plate (8), and the front surface of the cabinet (1) is an open port.

7. The multi-layer test stand structure of claim 1, wherein: The placing plate (3) is provided with at least three placing plates (3), and each placing plate (3) is provided with at least five positioning plates (7).

8. The multi-layer test stand structure of claim 1, wherein: The cabinet (1) is provided with a control button corresponding to each placing plate (3) on one side, and the corresponding placing plate (3) is flush with the table plate (4) after the control button is pressed.

9. The testbed multilayer structure of claim 1, wherein: The table plate (4) comprises a frame (10) and a plurality of bearing rods (11) arranged in the frame (10) in the width direction of the frame (10), both ends of the bearing rod (11) are rotatably connected to the frame (10), all the bearing rods (11) are horizontally arranged and have the same height, and the height of the top of the bearing rod (11) is the height of the surface of the table plate (4).

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