A terminal fixing device for traction converter maintenance

Abstract

The application provides a wiring terminal fixing device for traction converter maintenance, and relates to the technical field of wiring terminal fixing equipment. The device comprises a traction converter equipment box body. The detachable maintenance plate is detachable from the wiring box through bolts. At this time, the wiring terminal body can be slid into the inside of the connecting base through the connecting clamping block. The wiring terminal body can be connected with the connecting interface. The data in the traction converter equipment box body can be read and maintained. Since the locking block is triangular, the connecting clamping block can make the locking block descend when clamped. After the locking groove abuts against the locking block, the first spring can drive the locking block to ascend, the locking block can be clamped and fixed to the locking groove, the rotating clamping block can be moved by rotating the control handle, and the rotating clamping block can be combined with the limiting clamping groove after rotation. At this time, the wiring terminal body can be fixed to prevent the wiring terminal body from being separated.

Description

Technical Field

[0001] This utility model relates to the technical field of terminal block fixing equipment, and in particular to a terminal block fixing device for traction converter maintenance. Background Technology

[0002] Terminal blocks typically possess high current carrying capacity and shock resistance to ensure the reliability and safety of circuit connections. They are commonly used for high-voltage and high-current circuit connections, such as high-voltage switches and power transformers. In the machine design, the terminal blocks and connecting wires at the machine end of the atmospheric diffusion furnace tube TC connection are not fixed. In actual use, whether it is for traction converter maintenance, TC replacement, or TC temperature measurement, the terminal blocks need to be unplugged. Because the terminal blocks and connecting wires are not fixed, repeated plugging and unplugging of the terminal blocks can easily cause short circuits or open circuits in the connecting wires, thereby affecting product quality.

[0003] Existing terminal block fixing devices require fixing bolts or pins to secure the terminals. When removing the terminals, workers need to tighten the bolts and manually pull out the terminals. Due to the tight connection, workers need to shake the terminals up and down to remove them. However, the terminals are easily damaged during the shaking process, resulting in low safety. Therefore, we propose a terminal block fixing device for traction converter maintenance. Utility Model Content

[0004] In view of this, this application provides a terminal fixing device for traction converter maintenance, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A terminal fixing device for traction converter maintenance includes a traction converter equipment enclosure. A junction box is fixedly installed on the right side of the traction converter equipment enclosure, and a base plate is fixedly installed on the right side of the junction box. A detachable maintenance plate is bolted to the right side of the junction box. Cable passing holes are provided on the right side of the base plate and the detachable maintenance plate. A terminal block is fixedly installed on the left inner wall of the junction box and is electrically connected to the traction converter equipment enclosure. Multiple connecting bases are fixedly installed on the right side of the terminal block and are electrically connected to the terminal block and the connecting bases. A terminal fixing connection assembly and a terminal pull-out assembly are provided on the terminal block and the connecting bases.

[0007] Preferably, the terminal block fixing connection assembly includes a connection interface, a terminal block body, a connection clip, a connection cable, a first spring, and a locking block. The connection interface is fixedly installed on the inner side of the connection base. The terminal block body is slidably disposed on the inner side of the connection base. The connection clip is fixedly installed on the right side of the terminal block body. The terminal block body and the connection interface are connected. The connection cable is fixedly installed on the inner side of the connection clip and electrically connected to the terminal block body. One end of the first spring is fixedly installed on the bottom inner wall of the connection base, and the locking block is fixedly installed on the other end of the first spring.

[0008] Preferably, the terminal block pull-out assembly includes a fixing plate, an adjusting slide rod, a control handle, a locking seat, and a limiting slot. The fixing plate is fixedly installed on the right side of the connecting base, the adjusting slide rod is slidably installed on the inner side of the fixing plate, the control handle is fixedly installed on the outer side of one end of the adjusting slide rod, the locking seat is fixedly installed on the right side of the connecting base, and the limiting slot is formed on the inner side of the locking seat.

[0009] Preferably, the terminal block fixing connection assembly further includes a locking groove, a foolproof protrusion, and a force-bearing block. The locking groove is formed at the bottom of the connecting block, the locking block and the locking groove are fitted together, the foolproof protrusion is fixedly installed on the right side of the connecting base, and the force-bearing block is fixedly installed on the outside of the connecting cable.

[0010] Preferably, the terminal pull-out assembly further includes a rotating block, a fixed sleeve, a second spring, and a slider. The rotating block is fixedly installed on the outside of the adjusting slide rod and fits into the limiting slot. The fixed sleeve is fixedly installed on the right side of the connecting base. One end of the second spring is fixedly installed on the left inner wall of the fixed sleeve. The slider is fixedly installed on the other end of the second spring and slides on the inner side wall of the fixed sleeve.

[0011] Preferably, a movable rod is fixedly installed on one side of the slider, and an ejector plate is fixedly installed on one side of the movable rod, the ejector plate abutting against the force-bearing block.

[0012] Preferably, both the locking block and the locking groove are triangular in shape, and a sliding groove is provided on the right side of the connecting base, with the locking block slidably installed inside the sliding groove.

[0013] Preferably, a through hole is provided on one side of the locking seat, and the outer diameter of the rotating block is smaller than the inner diameter of the through hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) The present invention provides a terminal fixing device for traction converter maintenance. Through the terminal fixing connection component, the detachable maintenance plate can be removed from the junction box by bolts. At this time, the terminal body can be slid into the interior of the connection base through the connecting block. The terminal body can be connected to the connection interface and the data inside the traction converter equipment box can be read for maintenance. Since the locking block is triangular, the locking block can be lowered when the connecting block is inserted. After the locking groove abuts against the locking block, the first spring can drive the locking block to rise and lock the locking block to lock the locking groove. The control handle is rotated to drive the rotating block to move. After the rotating block rotates, it can fit with the limit slot. At this time, the terminal body can be fixed to prevent the terminal body from falling off.

[0016] (2) The present invention provides a terminal fixing device for traction converter maintenance. After maintenance is completed, the control handle can be rotated to allow the rotating block to slide out from the inside of the limiting slot. The control handle can drive the adjusting slide rod and the locking block to move. After the locking block moves, it can disengage from the inside of the locking slot. After the connecting block loses its limit, the cooperation of the second spring, the slider and the moving rod can apply pressure to the force block. After the force block is subjected to force, the connecting block and the terminal body can be ejected from the inside of the connecting base. Since the connecting base has a guide hole, the terminal body does not need to be operated by personnel during the pulling process and will not be damaged. It can greatly improve the insertion and removal efficiency and safety.

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a terminal fixing device for traction converter maintenance proposed in this utility model;

[0019] Figure 2 A schematic diagram showing a three-dimensional view of a portion of the structure of the base plate provided according to an embodiment of this application is shown;

[0020] Figure 3 This is a schematic diagram showing a three-dimensional view of a partial structure of a terminal fixing device for traction converter maintenance according to an embodiment of this application;

[0021] Figure 4 A schematic diagram showing a three-dimensional view of a portion of the structure of the fixed sleeve and the movable rod according to an embodiment of this application is provided;

[0022] Figure 5 A schematic diagram showing a three-dimensional view of a portion of the structure of the second spring and slider provided according to an embodiment of this application is shown;

[0023] Figure 6 A schematic diagram of a three-dimensional view of a portion of the structure of the ejector plate and the load-bearing block provided according to an embodiment of this application is shown;

[0024] Figure 7 This is a schematic diagram showing a three-dimensional view of the exploded portion structure of a terminal fixing device for traction converter maintenance according to an embodiment of this application.

[0025] Figure label:

[0026] 1. Terminal block fixing connection assembly; 2. Terminal block pull-out assembly; 3. Traction converter equipment enclosure; 4. Junction box; 5. Base plate; 6. Removable maintenance plate; 7. Cable through hole; 8. Terminal block; 9. Connecting base; 11. Connecting interface; 12. Terminal block body; 13. Connecting block; 14. Connecting cable; 15. First spring; 16. Locking block; 17. Locking groove; 18. Anti-foolproof protrusion; 19. Force-bearing block; 21. Fixing plate; 22. Adjusting slide rod; 23. Control handle; 24. Locking seat; 25. Limiting slot; 26. Rotating block; 27. Fixing sleeve; 28. Second spring; 29. ​​Sliding block; 30. Moving rod; 31. Ejector plate. Detailed Implementation

[0027] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0028] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] refer to Figure 1-7 A terminal fixing device for traction converter maintenance is characterized in that it includes a traction converter equipment box 3, a junction box 4 is fixedly installed on the right side of the traction converter equipment box 3, a base plate 5 is fixedly installed on the right side of the junction box 4, a detachable maintenance plate 6 is installed on the right side of the junction box 4 by bolts, cable passing holes 7 are opened on the right side of the base plate 5 and the detachable maintenance plate 6, a terminal connection strip 8 is fixedly installed on the left inner wall of the junction box 4, the terminal connection strip 8 is electrically connected to the traction converter equipment box 3, a plurality of connection bases 9 are fixedly installed on the right side of the terminal connection strip 8, the terminal connection strip 8 and the connection bases 9 are electrically connected, and a terminal fixing connection assembly 1 and a terminal pull-out assembly 2 are provided on the terminal connection strip 8 and the connection bases 9.

[0030] In this embodiment, the terminal block fixing connection assembly 1 includes a connection interface 11, a terminal block body 12, a connection block 13, a connection cable 14, a first spring 15, and a locking block 16. The connection interface 11 is fixedly installed on the inner side of the connection base 9. The terminal block body 12 is slidably disposed on the inner side of the connection base 9. The connection block 13 is fixedly installed on the right side of the terminal block body 12. The terminal block body 12 and the connection interface 11 are connected. The connection cable 14 is fixedly installed on the inner side of the connection block 13 and electrically connected to the terminal block body 12. One end of the first spring 15 is fixedly installed on the bottom inner wall of the connection base 9, and the locking block 16 is fixedly installed on the other end of the first spring 15.

[0031] In this embodiment, the terminal block pull-out assembly 2 includes a fixing plate 21, an adjusting slide rod 22, a control handle 23, a locking seat 24, and a limiting slot 25. The fixing plate 21 is fixedly installed on the right side of the connecting base 9, the adjusting slide rod 22 is slidably installed on the inner side of the fixing plate 21, the control handle 23 is fixedly installed on the outer side of one end of the adjusting slide rod 22, the locking seat 24 is fixedly installed on the right side of the connecting base 9, and the limiting slot 25 is opened on the inner side of the locking seat 24.

[0032] In this embodiment, the terminal block fixing connection assembly 1 further includes a locking groove 17, a foolproof protrusion 18, and a force-bearing block 19. The locking groove 17 is opened at the bottom of the connecting block 13, and the locking block 16 and the locking groove 17 are fitted together. The foolproof protrusion 18 is fixedly installed on the right side of the connecting base 9, and the force-bearing block 19 is fixedly installed on the outside of the connecting cable 14. The length of the foolproof protrusion 18 prevents the terminal block body 12 from being connected to the connecting interface 11, and the second spring 28 will continuously push the moving rod 30 to push the force-bearing block 19 out, which can realize foolproof installation and prevent the terminal block body 12 from being damaged due to excessive force by personnel.

[0033] In this embodiment, the terminal block pull-out assembly 2 further includes a rotating block 26, a fixed sleeve 27, a second spring 28, and a slider 29. The rotating block 26 is fixedly installed on the outside of the adjusting slide rod 22, and the rotating block 26 is in contact with the limiting slot 25. The fixed sleeve 27 is fixedly installed on the right side of the connecting base 9. One end of the second spring 28 is fixedly installed on the left inner wall of the fixed sleeve 27, and the slider 29 is fixedly installed on the other end of the second spring 28. The slider 29 is slidably installed on the inner side wall of the fixed sleeve 27. The slider 29 can guide the moving rod 30. After the terminal block body 12 is installed, the force block 19 on the connecting block 13 can abut against the ejector plate 31 and squeeze the second spring 28, so that after the locking block 16 is unlocked from the locking slot 17, the second spring 28 can push the force block 19 through elasticity.

[0034] In this embodiment, a movable rod 30 is fixedly installed on one side of the slider 29, and an ejector plate 31 is fixedly installed on one side of the movable rod 30. The ejector plate 31 abuts against the force-bearing block 19.

[0035] In this embodiment, both the locking block 16 and the locking groove 17 are triangular in shape. A sliding groove is provided on the right side of the connecting base 9, and the locking block 16 is slidably installed on the inner side of the sliding groove. The sliding groove facilitates the movement of the locking block 16, and allows the adjusting slide rod 22 to move so that the locking block 16 can follow the movement.

[0036] In this embodiment, a through hole is provided on one side of the locking seat 24, and the outer diameter of the rotating block 26 is smaller than the inner diameter of the through hole. The through hole allows the rotating block 26 to pass through the inside of the locking seat 24, which facilitates the adjustment slide rod 22 to control the locking block 16. After the rotating block 26 rotates, it can fit with the limiting slot 25, which can prevent the locking block 16 from loosening or shifting during use, and ensure that the locking block 16 will not detach from the locking slot 17.

[0037] The specific operation is as follows: the detachable maintenance plate 6 is removed from the junction box 4 using bolts. At this time, the terminal block body 12 can be slid into the interior of the connecting base 9 through the connecting block 13. The terminal block body 12 can be connected to the connecting interface 11, allowing maintenance and reading of data inside the traction converter equipment box 3. Since the locking block 16 is triangular, the connecting block 13 can lower the locking block 16 when it is inserted. After the locking groove 17 abuts against the locking block 16, the first spring 15 can drive the locking block 16 to rise, and the locking block 16 can lock and fix the locking groove 17. Then, the control handle 23 is rotated to drive the rotating block 26 to move. After the rotating block 26 rotates, it can fit into the limit groove 25, which can fix the terminal block body 12 and prevent it from coming off. After maintenance, the control handle 23 can be rotated to allow the rotating block 26 to slide out from the inside of the limit groove 25. The handle 23 can move the adjusting slide bar 22 and the locking block 16. After the locking block 16 moves, it can disengage from the inside of the locking groove 17. After the connecting block 13 loses its limit, the cooperation of the second spring 28, the slider 29 and the moving rod 30 can apply pressure to the force block 19. After the force block 19 is subjected to force, the connecting block 13 and the terminal body 12 can be ejected from the inside of the connecting base 9. Since the connecting base 9 has a guide hole, the terminal body 12 does not require manual operation during the pulling process and will not be damaged. This can greatly improve the insertion and removal efficiency and safety. If the force block 19 is inserted into the connecting base 9 downwards, the length of the anti-fooling protrusion 18 will prevent the terminal body 12 from connecting to the connecting interface 11. The second spring 28 will continue to push the moving rod 30 to push the force block 19 out, which can realize the anti-fooling installation and prevent the terminal body 12 from being damaged due to excessive force.

[0038] It should be noted that although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal fixing device for traction converter maintenance, characterized in that, include: A traction converter equipment enclosure (3) is provided. A junction box (4) is fixedly installed on the right side of the traction converter equipment enclosure (3). A base plate (5) is fixedly installed on the right side of the junction box (4). A detachable maintenance plate (6) is installed on the right side of the junction box (4) by bolts. Cable through holes (7) are provided on the right side of the base plate (5) and the detachable maintenance plate (6). A terminal block (8) is fixedly installed on the left inner wall of the junction box (4). The terminal block (8) is electrically connected to the traction converter equipment enclosure (3). Multiple connecting bases (9) are fixedly installed on the right side of the terminal block (8). The terminal block (8) and the connecting bases (9) are electrically connected. A terminal fixing connection assembly (1) and a terminal pull-out assembly (2) are provided on the terminal block (8) and the connecting bases (9).

2. The terminal fixing device for traction converter maintenance according to claim 1, characterized in that, The terminal block fixing connection assembly (1) includes a connection interface (11), a terminal block body (12), a connection block (13), a connection cable (14), a first spring (15), and a locking block (16). The connection interface (11) is fixedly installed on the inner side of the connection base (9). The terminal block body (12) is slidably disposed on the inner side of the connection base (9). The connection block (13) is fixedly installed on the right side of the terminal block body (12). The terminal block body (12) is connected to the connection interface (11). The connection cable (14) is fixedly installed on the inner side of the connection block (13) and electrically connected to the terminal block body (12). One end of the first spring (15) is fixedly installed on the bottom inner wall of the connection base (9). The locking block (16) is fixedly installed on the other end of the first spring (15).

3. The terminal fixing device for traction converter maintenance according to claim 1, characterized in that, The terminal pull-out assembly (2) includes a fixing plate (21), an adjusting slide rod (22), a control handle (23), a locking seat (24), and a limiting slot (25). The fixing plate (21) is fixedly installed on the right side of the connecting base (9). The adjusting slide rod (22) is slidably installed on the inner side of the fixing plate (21). The control handle (23) is fixedly installed on the outer side of one end of the adjusting slide rod (22). The locking seat (24) is fixedly installed on the right side of the connecting base (9). The limiting slot (25) is opened on the inner side of the locking seat (24).

4. A terminal fixing device for traction converter maintenance according to claim 2, characterized in that, The terminal block fixing connection assembly (1) also includes a locking groove (17), a foolproof protrusion (18), and a force-bearing block (19). The locking groove (17) is opened at the bottom of the connecting block (13). The locking block (16) fits into the locking groove (17). The foolproof protrusion (18) is fixedly installed on the right side of the connecting base (9). The force-bearing block (19) is fixedly installed on the outside of the connecting cable (14).

5. A terminal fixing device for traction converter maintenance according to claim 3, characterized in that, The terminal pull-out assembly (2) further includes a rotating block (26), a fixed sleeve (27), a second spring (28), and a slider (29). The rotating block (26) is fixedly installed on the outside of the adjusting slide rod (22). The rotating block (26) and the limiting slot (25) are in contact. The fixed sleeve (27) is fixedly installed on the right side of the connecting base (9). One end of the second spring (28) is fixedly installed on the left inner wall of the fixed sleeve (27). The slider (29) is fixedly installed on the other end of the second spring (28). The slider (29) is slidably installed on the inner side wall of the fixed sleeve (27).

6. A terminal fixing device for traction converter maintenance according to claim 5, characterized in that, A movable rod (30) is fixedly installed on one side of the slider (29), and an ejector plate (31) is fixedly installed on one side of the movable rod (30). The ejector plate (31) abuts against the force-bearing block (19).

7. A terminal fixing device for traction converter maintenance according to claim 4, characterized in that, The locking block (16) and the locking groove (17) are both triangular in shape. A sliding groove is provided on the right side of the connecting base (9), and the locking block (16) is slidably installed on the inner side of the sliding groove.

8. A terminal fixing device for traction converter maintenance according to claim 5, characterized in that, The locking seat (24) has a through hole on one side, and the outer diameter of the rotating block (26) is smaller than the inner diameter of the through hole.

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