Low-voltage power distribution cabinet wiring terminal test equipment
By designing a low-voltage distribution cabinet terminal testing equipment including a test bench, support frame, cylinder and test components, the problems of easy flying of terminals and easy bounce of conductors are solved, and the automatic limiting of terminals and automatic clamping of conductors are realized, which improves the stability, safety and flexibility of the test.
Patent Information
- Application Number
- CN202510213913.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-05-27
AI Technical Summary
During the tensile test of existing equipment, the terminals are prone to fly out of the test bench, and when the wire breaks, it is easy to bounce and hit other equipment or staff.
A low-voltage distribution cabinet terminal testing equipment is designed, including a test bench, support frame, cylinder, slide frame and test components. The terminals are limited by the coordination of the side baffle, upper baffle, sliding column and support frame to prevent them from flying out; the wire clamp is automatically clamped and tensile force is applied to conduct tensile tests; the tension value is detected by using a pressure sensor; the transparent baffle is automatically closed during testing to prevent the wire from bounced when it breaks.
The automatic limit of the terminals is realized to prevent flying out, improving the stability and safety of the test; the automatic clamping of the wires simplifies the test process and improves flexibility; the precise detection of the tension value through the pressure sensor is provided, providing reliable test data.
Smart Images
Figure CN120043875A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wiring terminal testing, and particularly to a testing device for wiring terminals of a low-voltage power distribution cabinet. Background Art
[0002] The low-voltage power distribution cabinet has the characteristics of strong breaking capacity, good dynamic and thermal stability, convenient combination, strong series and practicability, novel structure, etc. The wiring terminal is a key electrical connection component for maintaining the good performance of the low-voltage power distribution cabinet. The wiring terminal facilitates the more convenient butt joint between wires in the low-voltage power distribution cabinet. For example, for two wires, sometimes they need to be connected and sometimes they need to be disconnected. At this time, they can be connected through the terminal and can be disconnected at any time, without having to weld or wind the wires together, which is very convenient and fast. To ensure the firm connection between the wiring terminal and the wire and ensure the use safety, it is necessary to conduct a tensile test on the wiring terminal.
[0003] When the existing equipment conducts a tensile test on the wiring terminal, it usually clamps the wiring terminal at the bayonet, and then pulls the wire to move for testing. However, when the wiring terminal is separated from the wire, the wiring terminal is likely to fly out of the test bench because it is not affected by the limiting force, and when the wire breaks, it is still easy to bounce and hit other equipment or staff. Summary of the Invention
[0004] Aiming at the deficiencies of the prior art, the present invention provides a testing device for wiring terminals of a low-voltage power distribution cabinet, which solves the problem that the wiring terminal is likely to fly out of the test bench after the wire connected to the wiring terminal breaks.
[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A testing device for wiring terminals of a low-voltage power distribution cabinet, including a test bench, the upper surface of the test bench is fixedly connected with a support frame, the upper surface of the test bench is fixedly connected with a cylinder, the driving end of the cylinder is fixedly connected with a sliding frame, the inner wall of the sliding frame is slidably connected with the outer wall of the support frame, a testing component is installed on the surface of the support frame, the testing component includes a wiring terminal clamp and a wire clamp, the wiring terminal clamp includes a cross-shaped sliding column and an upper baffle, the sliding column penetrates and is slidably connected with the sliding frame, one end of the sliding column is fixedly connected with a pulling rope, the other end of the pulling rope is fixedly connected with the outer wall of the sliding frame, a guiding frame is arranged outside the pulling rope, one end of the guiding frame is fixedly connected with the outer side wall of the support frame, one end of the upper baffle is fixedly installed on the upper side wall of the support frame, a groove is formed on the upper surface of the sliding column, and a side baffle is rotatably connected to the upper surface of the sliding column through a torsion spring rotating shaft.
[0006] Preferably, the guiding frame includes a bracket. One end of the bracket is rotatably connected with a fixed pulley through a shaft. The upper surface of the bracket is fixedly connected with a U-shaped blocking frame. The fixed pulley is used to adjust the force direction of the pulling rope. The pulling rope is composed of a spring rope section and a non-elastic rope section.
[0007] Preferably, a first pulling spring is sleeved outside the sliding column. Two ends of the first pulling spring are respectively fixedly connected with the supporting frame and the outer wall of the sliding column. The stiffness coefficient of the spring rope section is greater than that of the first pulling spring.
[0008] Preferably, an annular pressure sensor is coaxially arranged outside the sliding column. The side wall of the pressure sensor is fixedly connected with the upper side wall of the supporting frame. A limiting ring is coaxially arranged outside the pressure sensor. The limiting ring includes a first ring body and a second ring body. The outer wall of the first ring body is fixedly connected with the upper side wall of the supporting frame. A spring telescopic rod is fixedly connected between the opposite ends of the first ring body and the second ring body.
[0009] Preferably, an L-shaped guiding frame is slidably connected to the outer side wall of the sliding column. The radian of the upper surface of the guiding frame is consistent with that of the pressure sensor. A second pulling spring is fixedly connected to the inner side wall of the guiding frame. The other end of the second pulling spring is fixedly connected with the inner side wall of the sliding column.
[0010] Preferably, the wire clamp includes an L-shaped connecting frame. The bottom end of the connecting frame is fixedly connected with the upper surface of the sliding frame. An opening for the connecting frame to pass through is formed on the surface of the supporting frame. A clamping groove is formed on the upper surface of the connecting frame. A clamping plate is slidably connected inside the clamping groove. A trapezoidal block is fixedly connected to the outer side wall of the clamping plate. A limiting member is arranged below the connecting frame.
[0011] Preferably, the limiting member includes a U-shaped limiting plate and a U-shaped fixing plate. Two ends of the limiting plate penetrate through the supporting frame. Two ends of the fixing plate are fixedly connected with the outer side wall of the supporting frame. A threaded rotating rod is rotatably connected to the outer side wall of the limiting plate. The outer wall of the threaded rotating rod is threadedly connected with the fixing plate.
[0012] Preferably, a notch is formed on one side of the clamping groove. A third pulling spring is fixedly connected to the lower side wall of the connecting frame. The other end of the third pulling spring is fixedly installed on the inner side wall of the clamping groove.
[0013] Preferably, a protective component is installed on the surfaces of the supporting frame, the guiding frame and the sliding column. The protective component includes two fixing layers. One end of the fixing layer is fixedly installed on the upper side wall of the supporting frame. The two fixing layers are symmetrically distributed along the vertical center line of the supporting frame. One end of the fixing layer is rotatably connected with a transparent baffle through a torsion spring rotating shaft. The stiffness coefficient of the first pulling spring is greater than that of the torsion spring rotating shaft.
[0014] Preferably, the protection component further includes two L-shaped mounting brackets. One end of the mounting bracket is fixedly connected to the outer side wall of the guiding bracket. A connecting rope is fixedly connected to the outer side wall of the transparent baffle. The other end of the connecting rope penetrates through the mounting bracket and is fixedly connected to the outer side wall of the sliding column.
[0015] Working principle: During use, press down the side baffle to place the terminal on the sliding column, and slide it along the guiding bracket to the pressure sensor. Then, insert the wire into the inside of the card slot through the notch for placement, and finally conduct the test.
[0016] During the test, control the cylinder to contract. The contraction of the cylinder drives the pull rope to move downward, and the pull rope pulls the sliding column to slide, causing the side baffle to move towards the terminal, so that it moves below the upper baffle and cooperates with the upper baffle to limit the terminal, preventing the terminal from flying out of the test bench easily due to the lack of a limiting force when the test wire comes off, achieving the effect of automatic limiting. Moreover, the side baffle and the limiting ring cooperate to clamp the terminal laterally, improving the stability of the terminal during the test and being applicable to terminals of various sizes.
[0017] When the cylinder contracts, it synchronously drives the connecting frame to move downward. The downward movement of the connecting frame drives the clamping plate and the trapezoidal block to descend through the limiting member. The inclined surface of the trapezoidal block abuts against the limiting plate for guidance, so that one end of the trapezoidal block can abut against the inner wall of the limiting plate. Thus, while the clamping plate moves downward, it can move towards the wire, automatically clamping and fixing the wire, and applying a downward pulling force to the wire during the subsequent descent process, thereby conducting a tensile test on the terminal, achieving the effects of automatically fixing the wire and conducting the test. The tensile force received by the terminal can be detected through the pressure sensor, and the tensile force value of the terminal can be obtained. Before the wire is clamped, rotate the threaded rod to drive the limiting plate to move. When the limiting plate moves, adjust the distance from the trapezoidal block, so that when the trapezoidal block moves into the inside of the limiting plate, adjust the distance between the clamping plate and the inner side wall of the card slot, being applicable to clamping wires of various diameters and improving the flexibility of the wire fixture during the test.
[0018] Before or after the test, the tension spring applies a pulling force to the sliding column, and the sliding column applies a pulling force to the transparent baffle through the connecting rope, thereby pulling the two transparent baffles to rotate and open, facilitating the tester to install or remove the terminal block. During the test, the sliding column is pulled by the pulling force applied by the pulling rope and slides. When the sliding column slides, the pulling force of the connecting rope on the transparent baffle will gradually decrease until it disappears. At this time, the two transparent baffles rotate and close under the torsion of the torsion spring shaft, thereby protecting the area where the terminal block and the wire intersect. To avoid the wire bouncing and hitting other equipment or workers when the wire is detached from the terminal block or the wire breaks due to too strong a pulling force. Through the automatically opening and closing transparent baffle, it is not only convenient for the tester to observe the changes when the terminal block and the wire intersect under the pulling force, but also has a certain degree of protection function, improving the safety during the test of the terminal block of the low-voltage switchgear cabinet.
[0019] The present invention provides a test device for terminal blocks of low-voltage switchgear cabinets. It has the following beneficial effects:
[0020] 1. In the present invention, the terminal block is placed through the sliding column. During the test, the side baffle slides below the upper baffle, and then the terminal block is limited by the cooperation of the side baffle, the upper baffle, the sliding column and the support frame, preventing the terminal block from flying out of the test bench easily due to the lack of a limiting force when the test is off-line, achieving the effect of automatic limiting.
[0021] 2. In the present invention, the wire is passed through the card slot. During the test, when the clamping plate descends and is stressed, it can slide horizontally automatically to clamp and fix the wire, and apply a downward pulling force to the wire during the subsequent descent process, thereby performing a tensile test on the terminal block, achieving the effects of automatically fixing the wire and performing the test.
[0022] 3. In the present invention, the pressure sensor detects the tensile force value received by the terminal block. When the terminal block passes through the sliding column, it can slide along the guiding frame to the pressure sensor, facilitating the installation of the terminal block.
[0023] 4. In the present invention, the sliding of the sliding column pulls the transparent baffle to rotate. Then, during the test, the transparent baffle automatically closes for protection to avoid the wire bouncing and hitting other equipment or workers when the wire suddenly breaks. When the sliding column returns to its original position after the detection is completed, the transparent baffle automatically opens, facilitating the removal or installation of the terminal block. Description of the Drawings
[0024] Figure 1 is a three-dimensional view of the present invention;
[0025] Figure 2 is a schematic structural diagram of the test component of the present invention;
[0026] Figure 3Schematic diagram of the terminal fixture structure of the present invention;
[0027] Figure 4 For the present invention Figure 3 Enlarged view of part A;
[0028] Figure 5 is The present invention Figure 3 Enlarged view of part B;
[0029] Figure 6 Schematic diagram of the limit ring structure of the present invention;
[0030] Figure 7 Schematic diagram of the wire fixture structure of the present invention;
[0031] Figure 8 For the present invention Figure 7 Enlarged view of part C;
[0032] Figure 9 For the present invention Figure 7 Enlarged view of part D;
[0033] Figure 10 Schematic diagram of the protection component structure of the present invention;
[0034] Figure 11 Schematic diagram of the transparent baffle of the present invention.
[0035] Among them, 1, test bench; 2, support frame; 3, cylinder; 4, sliding frame; 5, test component; 51, terminal fixture; 52, wire fixture; 5101, sliding column; 5102, pull rope; 5104, upper baffle; 5105, groove; 5106, side baffle; 5107, first tension spring; 5108, pressure sensor; 5109, limit ring; 5110, guide frame; 5111, second tension spring; 51021, spring rope segment; 51022, non-elastic rope segment; 51091, first ring body; 51092, second ring body; 51093, spring telescopic rod; 521, connecting frame; 522, card slot; 523, clamping plate; 524, trapezoidal block; 525, limiting member; 526, notch; 527, third tension spring; 5251, limiting plate; 5252, fixing plate; 5253, threaded rod; 6, guide frame; 61, support; 62, fixed pulley; 63, blocking frame; 7, protection component; 71, fixed layer; 72, transparent baffle; 73, connecting rope; 74, mounting frame; 8, housing. Detailed implementation manners
[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.
[0037] Please refer to the attached Figure 1 - attached Figure 4 , an embodiment of the present invention provides a low-voltage power distribution cabinet wiring terminal testing device, including a test bench 1. A support frame 2 is fixedly connected to the upper surface of the test bench 1. A cylinder 3 is fixedly connected to the upper surface of the test bench 1. The driving end of the cylinder 3 is fixedly connected to a sliding frame 4. The inner wall of the sliding frame 4 is slidably connected to the outer wall of the support frame 2. A test component 5 is installed on the surface of the support frame 2. The test component 5 includes a wiring terminal clamp 51 and a wire clamp 52. The wiring terminal clamp 51 includes a cross-shaped sliding column 5101 and an upper baffle 5104. The sliding column 5101 penetrates and is slidably connected to the sliding frame 4. One end of the sliding column 5101 is fixedly connected to a pulling rope 5102. The other end of the pulling rope 5102 is fixedly connected to the outer wall of the sliding frame 4. A guide frame 6 is arranged outside the pulling rope 5102. One end of the guide frame 6 is fixedly connected to the outer side wall of the support frame 2. One end of the upper baffle 5104 is fixedly installed on the upper side wall of the support frame 2. A groove 5105 is opened on the upper surface of the sliding column 5101. A side baffle 5106 is rotatably connected to the upper surface of the sliding column 5101 through a torsion spring shaft. A housing 8 is fixedly connected to the upper surface of the test bench 1. The housing 8 serves to block a partial structure of the test component 5.
[0038] Specifically, the support frame 2 is used to install the wiring terminal clamp 51 and the wire clamp 52. The sliding column 5101 is used to place the wiring terminal. The side baffle 5106 remains vertical through the torsion of the torsion spring shaft. By pressing down the side baffle 5106, it is convenient to remove or place the wiring terminal from the sliding column 5101. The groove 5105 is used to accommodate the side baffle 5106 when pressing the side baffle 5106, so as to avoid blocking the wiring terminal. The cylinder 3 is used to adjust the height of the sliding frame 4. The sliding frame 4 is used to pull the pulling rope 5102. The guide frame 6 is used to adjust the force direction of the pulling rope 5102. The pulling rope 5102 is used to connect the sliding frame 4 and the sliding column 5101, so that when the sliding frame 4 descends, the sliding column 5101 can be pulled to slide horizontally through the pulling rope 5102. When the sliding column 5101 slides, it drives the side baffle 5106 to move towards the wiring terminal side until it abuts against the wiring terminal. At this time, the side baffle 5106 is located below the upper baffle 5104. Through the cooperation of the side baffle 5106, the upper baffle 5104, the support frame 2 and the sliding column 5101, the wiring terminal can be limited, preventing the wiring terminal from falling off when the wiring terminal and the wire are separated, achieving the effect of automatically limiting the wiring terminal.
[0039] Please refer to the appendix Figure 3 - Appendix Figure 5, Figure 5, The guide frame 6 includes a bracket 61. One end of the bracket 61 is rotatably connected to a fixed pulley 62 through a shaft. The upper surface of the bracket 61 is fixedly connected to a U-shaped position-blocking frame 63. When the sliding column 5101 abuts against the position-blocking frame 63, the side baffle 5106 slides below the upper baffle 5104. The pulling rope 5102 is composed of a spring rope segment 51021 and a non-elastic rope segment 51022. A first pulling spring 5107 is sleeved outside the sliding column 5101. The two ends of the first pulling spring 5107 are respectively fixedly connected to the outer wall of the support frame 2 and the sliding column 5101. The stiffness coefficient of the spring rope segment 51021 is greater than that of the first pulling spring 5107. Since the stiffness coefficient of the spring rope segment 51021 is greater than that of the first pulling spring 5107, when the spring rope segment 51021 is stressed, it can offset the pressure of the first pulling spring 5107 and drive the sliding column 5101 to slide.
[0040]
[0040] Specifically, the fixed pulley 62 is used to guide the pulling rope 5102 and reduce the friction with the pulling rope 5102. The first pulling spring 5107 applies a pulling force to the sliding column 5101, so that the upper baffle 5104 and the side baffle 5106 are staggered to leave a certain gap, avoiding the upper baffle 5104 from hindering the downward rotation of the side baffle 5106. When the sliding frame 4 moves downward, the sliding column 5101 is pulled to slide through the spring rope segment 51021 and the non-elastic rope segment 51022 until the sliding column 5101 abuts against the position-blocking frame 63. At this time, the wire clamp 52 has clamped the wire. When the wire is pulled down subsequently, the spring rope segment 51021 will be stretched, and the sliding column 5101 will no longer be pulled, realizing the equidistant sliding of the sliding column 5101 to achieve the effect of limiting the connection terminal, and avoiding the side baffle 5106 from jamming the sliding column 5101 when abutting against the connection terminal, resulting in movement interference in the downward test of the wire and affecting the normal progress of the test.
[0041] Please refer to the appendix Figure 4 Figure 4 , a ring-shaped pressure sensor 5108 is coaxially arranged outside the sliding column 5101. The side wall of the pressure sensor 5108 is fixedly connected to the upper side wall of the support frame 2. A limiting ring 5109 is coaxially arranged outside the pressure sensor 5108. The inner diameter of the limiting ring 5109 is greater than the outer diameter of the pressure sensor 5108. The limiting ring 5109 includes a ring body 51091 and a ring body 51092. The outer wall of the ring body 51091 is fixedly connected to the upper side wall of the support frame 2. A spring telescopic rod 51093 is fixedly connected to the opposite ends of the ring body 51091 and the ring body 51092. The diameter of the pressure sensor 5108 is smaller than the inner diameter of the connection terminal, so that the connection terminal can pass through the pressure sensor 5108, so as to mount and detect connection terminals of various diameters.
[0042] Specifically, the pressure sensor 5108 is used to detect the tensile force value received by the terminal block. The limiting ring 5109 is used to limit the position of the terminal block, so as to leave a certain gap between the terminal block and the support frame 2 to prevent the bottom end of the terminal block from contacting the support frame 2, which may cause the terminal block to tilt when the side baffle 5106 presses against the terminal block. The side baffle 5106 is used to push the terminal block against the limiting ring 5109, so that the side baffle 5106 and the limiting ring 5109 can horizontally and laterally limit the terminal block, improving the stability of the terminal block during testing. Moreover, the limiting ring 5109 is composed of a first ring body 51091, a second ring body 51092 and a spring telescopic rod 51093, enabling the limiting ring 5109 to horizontally expand and contract, realizing elastic clamping of the terminal block, being applicable to terminal blocks of various thicknesses, and improving the flexibility of the testing equipment.
[0043] Please refer to the appendix Figure 6 , a guiding frame 5110 in an L shape is slidably connected to the outer side wall of the sliding column 5101. The upper surface curvature of the guiding frame 5110 is consistent with the curvature of the pressure sensor 5108. A second tension spring 5111 is fixedly connected to the inner side wall of the guiding frame 5110, and the other end of the second tension spring 5111 is fixedly connected to the inner side wall of the sliding column 5101.
[0044] Specifically, the guiding frame 5110 is used to guide the terminal block, so that when the terminal block moves along with the side baffle 5106, it can slide onto the pressure sensor 5108 along the guiding frame 5110 under the pushing action of the side baffle 5106. Thus, there is no need to manually fix the terminal block to prevent it from detaching from the pressure sensor 5108, improving the convenience of use. Moreover, due to the elasticity of the second tension spring 5111, one end of the guiding frame 5110 always presses against the pressure sensor 5108, which helps to avoid a gap between the guiding frame 5110 and the pressure sensor 5108 and getting the terminal block stuck.
[0045] Please refer to the appendix Figure 7 - appendix Figure 8 , the wire clamp 52 includes an L-shaped connecting frame 521. The bottom end of the connecting frame 521 is fixedly connected to the upper surface of the sliding frame 4. An opening for the connecting frame 521 to pass through is provided on the surface of the support frame 2. A clamping groove 522 is provided on the upper surface of the connecting frame 521. A clamping plate 523 is slidably connected inside the clamping groove 522. A trapezoidal block 524 is fixedly connected to the outer side wall of the clamping plate 523. A limiting member 525 is arranged below the connecting frame 521. Clamping teeth are fixedly provided on the inner side wall of the clamping groove 522 and the lower side wall of the clamping plate 523 in a cross distribution, which can improve the clamping effect on the wire.
[0046] Specifically, the lifting of the sliding frame 4 drives the lifting of the connecting frame 521. The card slot 522 is used for the wire to pass through. The inclined surface of the trapezoidal block 524 faces downward towards the limiting member 525. When the sliding frame 4 drives the connecting frame 521 to descend, the connecting frame 521 drives the clamping plate 523 and the trapezoidal block 524 to descend synchronously. By the inclined surface of the trapezoidal block 524 against the top end of the limiting member 525, while the trapezoidal block 524 descends, it pushes the trapezoidal block 524 and the clamping plate 523 to move horizontally towards the wire, so that the clamping plate 523 cooperates with the inner side wall of the card slot 522 to clamp the wire, apply a tensile force to the wire for testing, and realize the functions of automatic clamping and pulling of the wire by the wire clamp 52.
[0047] Please refer to the appendix Figure 9 , the limiting member 525 includes a U-shaped limiting plate 5251 and a U-shaped fixing plate 5252. Both ends of the limiting plate 5251 penetrate through the support frame 2, and both ends of the fixing plate 5252 are fixedly connected to the outer side wall of the support frame 2. A threaded rod 5253 is rotatably connected to the outer side wall of the limiting plate 5251, and the outer wall of the threaded rod 5253 is threadedly connected to the fixing plate 5252.
[0048] Specifically, the fixing plate 5252 is used to support the threaded rod 5253, the limiting plate 5251 is used to limit the trapezoidal block 524 so that it can move horizontally along the inner wall of the limiting plate 5251 to make the clamping plate 523 clamp the wire, and the threaded rod 5253 is used to drive the limiting plate 5251 to move horizontally when rotating, so that the distance between the limiting plate 5251 and the clamping plate 523 can be adjusted according to the different thicknesses of the wires, and the staying position of the clamping plate 523 moving horizontally under force can be controlled, so as to adapt to clamping and fixing wires of various sizes and improve the flexibility of use of the wire clamp 52.
[0049] Please refer to the appendix Figure 8 , a notch 526 is opened on one side of the card slot 522, and a third tension spring 527 is fixedly connected to the lower side wall of the connecting frame 521, and the other end of the third tension spring 527 is fixedly installed on the inner side wall of the card slot 522.
[0050] Specifically, the third tension spring 527 is used to apply a tensile force to the connecting frame 521, so that the connecting frame 521 is staggered from the inner side wall of the card slot 522 and keeps the connecting frame 521 at the notch 526, leaving a space for the wire to penetrate, and is conducive to preventing the wire from coming out of the notch 526 after penetrating. By pushing the connecting frame 521 to slide and open the notch 526, the wire is moved out of the card slot 522 along the notch 526, so that when the wire passes through, it is not necessary to pass the wire head through the card slot 522, which is convenient for placing the wire in the card slot 522.
[0051] Please refer to the appendix Figure 10, a protective component 7 is mounted on the surfaces of the support frame 2, the guide frame 6 and the sliding column 5101. The protective component 7 includes two fixed layers 71. One end of the fixed layer 71 is fixedly mounted on the upper side wall of the support frame 2. The two fixed layers 71 are symmetrically distributed along the vertical center line of the support frame 2. One end of the fixed layer 71 is rotatably connected to a transparent baffle 72 through a torsion spring rotating shaft, and the spring constant of the first tension spring 5107 is greater than the spring constant of the torsion spring rotating shaft.
[0052] Specifically, the fixed layer 71 is used to rotatably support the transparent baffle 72. The ends of the two transparent baffles 72 away from the fixed layer 71 are mutually attached by the torsion of the torsion spring rotating shaft. Thus, through the cooperation of the transparent baffle 72, the fixed layer 71 and the upper side area of the support frame 2, protection is formed outside the area where the wire intersects with the terminal, avoiding the wire suddenly breaking and bouncing to hit other equipment or staff.
[0053] Please refer to the appendix Figure 10 - appendix Figure 11 , the protective component 7 further includes two L-shaped mounting brackets 74. One end of the mounting bracket 74 is fixedly connected to the outer side wall of the guide frame 6. A connecting rope 73 is fixedly connected to the outer side wall of the transparent baffle 72. The other end of the connecting rope 73 penetrates through the mounting bracket 74 and is fixedly connected to the outer side wall of the sliding column 5101.
[0054] Specifically, the mounting bracket 74 is used to change the force application direction of the connecting rope 73. The connecting rope 73 is used to connect the sliding column 5101 and the transparent baffle 72. When the first tension spring 5107 applies a pulling force to the sliding column 5101, since the spring constant of the first tension spring 5107 is greater than the spring constant of the torsion spring rotating shaft of the transparent baffle 72, the sliding column 5101 can then pull the transparent baffle 72 to rotate through the connecting rope 73, causing the transparent baffle 72 to rotate and open, facilitating the placement or removal of the terminal. Thus, when the sliding column 5101 slides for detection, the transparent baffle 72 automatically closes for protection. When the sliding column 5101 returns to its original position after the detection is completed, the transparent baffle 72 automatically opens to facilitate the disassembly and assembly of the internal tested terminal.
[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-voltage distribution cabinet terminal testing device, comprising a test bench (1), characterized in that: The upper surface of the test bench (1) is fixedly connected to a support frame (2), the upper surface of the test bench (1) is fixedly connected to a cylinder (3), the driving end of the cylinder (3) is fixedly connected to a sliding frame (4), the inner wall of the sliding frame (4) is slidably connected to the outer wall of the support frame (2), and a test assembly (5) is installed on the surface of the support frame (2), the test assembly (5) comprises a terminal clamp (51) and a wire clamp (52), the terminal clamp (51) comprises a cross-shaped sliding column (5101) and an upper baffle (5104), the sliding column (5101) penetrates and is connected to the sliding frame (4) Sliding connection, one end of the sliding column (5101) is fixedly connected to a pull rope (5102), the other end of the pull rope (5102) is fixedly connected to the outer wall of the sliding frame (4), a guide frame (6) is arranged on the outer side of the pull rope (5102), one end of the guide frame (6) is fixedly connected to the outer wall of the support frame (2), one end of the upper baffle plate (5104) is fixedly installed on the upper side wall of the support frame (2), a groove (5105) is provided on the upper surface of the sliding column (5101), and the upper surface of the sliding column (5101) is rotatably connected to a side baffle plate (5106) via a torsion spring shaft.
2. A low-voltage distribution cabinet terminal testing device according to claim 1, characterized in that: The guide frame (6) comprises a bracket (61), one end of the bracket (61) is rotatably connected to a fixed pulley (62) via an axis, a U-shaped blocking frame (63) is fixedly connected to the upper surface of the bracket (61), and the pull rope (5102) is composed of a spring rope segment (51021) and a non-elastic rope segment (51022) connected to each other.
3. A low-voltage distribution cabinet terminal testing device according to claim 1, characterized in that: A tension spring 1 (5107) is sleeved on the outer side of the sliding column (5101), and the two ends of the tension spring 1 (5107) are respectively fixedly connected to the outer wall of the support frame (2) and the sliding column (5101).
4. A low-voltage distribution cabinet terminal testing device according to claim 1, characterized in that: An annular pressure sensor (5108) is coaxially arranged on the outer side of the sliding column (5101), and the side wall of the pressure sensor (5108) is fixedly connected to the upper side wall of the support frame (2). A limit ring (5109) is coaxially arranged on the outer side of the pressure sensor (5108), and the limit ring (5109) includes a ring body 1 (51091) and a ring body 2 (51092). The outer wall of the ring body 1 (51091) is fixedly connected to the upper side wall of the support frame (2), and the opposite ends of the ring body 1 (51091) and the ring body 2 (51092) are fixedly connected with a spring telescopic rod (51093).
5. A low-voltage distribution cabinet terminal testing device according to claim 4, characterized in that: The outer wall of the sliding column (5101) is slidably connected to an L-shaped guide frame (5110), the curvature of the upper surface of the guide frame (5110) is consistent with the curvature of the pressure sensor (5108), and the inner wall of the guide frame (5110) is fixedly connected to a second tension spring (5111), and the other end of the second tension spring (5111) is fixedly connected to the inner wall of the sliding column (5101).
6. A low-voltage distribution cabinet terminal testing device according to claim 1, characterized in that: The wire clamp (52) comprises an L-shaped connecting frame (521), the bottom end of the connecting frame (521) is fixedly connected to the upper surface of the sliding frame (4), the surface of the supporting frame (2) is provided with an opening for the connecting frame (521) to pass through, the upper surface of the connecting frame (521) is provided with a slot (522), the interior of the slot (522) is slidably connected to a clamping plate (523), the outer side wall of the clamping plate (523) is fixedly connected to a trapezoidal block (524), and a limiting member (525) is provided below the connecting frame (521).
7. A low-voltage distribution cabinet terminal testing device according to claim 6, characterized in that: The limiting member (525) comprises a U-shaped limiting plate (5251) and a U-shaped fixing plate (5252); both ends of the limiting plate (5251) pass through the support frame (2); both ends of the fixing plate (5252) are fixedly connected to the outer side wall of the support frame (2); the outer side wall of the limiting plate (5251) is rotatably connected to a threaded rotating rod (5253); and the outer wall of the threaded rotating rod (5253) is threadedly connected to the fixing plate (5252).
8. A low-voltage distribution cabinet terminal testing device according to claim 6, characterized in that: A notch (526) is provided on one side of the slot (522); a tension spring (527) is fixedly connected to the lower side wall of the connecting frame (521); and the other end of the tension spring (527) is fixedly mounted on the inner side wall of the slot (522).
9. A low-voltage distribution cabinet terminal testing device according to claim 1, characterized in that: A protective component (7) is installed on the surface of the support frame (2), the guide frame (6) and the sliding column (5101), and the protective component (7) includes two fixed layers (71), one end of the fixed layer (71) is fixedly installed on the upper side wall of the support frame (2), and the two fixed layers (71) are symmetrically distributed along the vertical center line of the support frame (2), and one end of the fixed layer (71) is rotatably connected to a transparent baffle (72) via a torsion spring shaft.
10. A low voltage distribution cabinet terminal testing device according to claim 9, characterized in that: The protection assembly (7) further comprises two L-shaped mounting frames (74), one end of the mounting frame (74) being fixedly connected to the outer wall of the guide frame (6), the outer wall of the transparent baffle (72) being fixedly connected to a connecting rope (73), the other end of the connecting rope (73) passing through the mounting frame (74) and being fixedly connected to the outer wall of the sliding column (5101).