A high-voltage movable switch cabinet wire trough

Abstract

The utility model discloses a kind of wiring grooves of high-voltage movable switch cabinet, it is related to electrical equipment technical field, including installation box body, further include export block and import block, the side fixedly connected with fixed sleeve of export block is provided with fixed tube plate one and fixed tube plate two, fixed sleeve, fixed tube plate one and fixed tube plate two are all L type settings, the surface fixedly connected with hinge of fixed tube plate one, fixed plate is rotatably connected by hinge of fixed tube plate one, the surface rotatably connected with rotating clamping block of fixed tube plate two, rotating clamping block rotates and fixes fixed plate, when only through outlet slot to line limiting operation, the inside of line bending (the side close to outlet slot right angle vertex) can be extruded stress, outside will be subjected to tensile stress, to make stress concentration, for insulating layer or conductor, long-term or repeated stress concentration can lead to material fatigue, prone to crack, affect the problem of line use.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a wiring trough for a high-voltage withdrawable switchgear. Background Technology

[0002] High-voltage withdrawable switchgear is widely used in power systems in power plants, substations, industrial enterprises and other places to receive and distribute electrical energy, playing a key role in the safe and stable operation of the power system. As an important component of the switchgear, cable trays are mainly used to organize and protect the secondary wiring inside the cabinet, ensuring the safe laying and normal operation of the wiring.

[0003] The prior art CN213636634U discloses a wiring trough structure for a metal-armored withdrawable high-voltage switchgear. This device places the wiring inside a metal wiring box and then installs the metal wiring box on the back of the cabinet. This way, the wiring harness can be protected by the metal wiring box, avoiding large areas of the wiring harness being exposed to the external environment, which could lead to damage to the wiring. However, although the device allows for selection of the installation height of the line through multiple outlet slots, facilitating the installation operation, when the line is limited only through the outlet slots, the inner side of the line bend (the side closest to the right angle vertex of the outlet slot) will be subjected to compressive stress, while the outer side will be subjected to tensile stress, resulting in stress concentration. For the insulation layer or conductor, long-term or repeated stress concentration can lead to material fatigue, making it prone to cracks and affecting the use of the line. Utility Model Content

[0004] The purpose of this utility model is to provide a wiring trough for a high-voltage removable switchgear to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable tray for a high-voltage retractable switchgear, including a mounting enclosure, and further comprising, The system includes an export block and an import block. A fixed sleeve is fixedly connected to one side of the export block, and a fixed tube plate one and a fixed tube plate two are provided on one side of the import block. The fixed sleeve, fixed tube plate one, and fixed tube plate two are all L-shaped. A hinge is fixedly connected to the surface of fixed tube plate one, and a fixed plate is rotatably connected to fixed tube plate one through the hinge. A rotating block is rotatably connected to the surface of fixed tube plate two, and the rotating block rotates and fixes the fixed plate. A cover plate has a barrier plate fixedly connected through its side. The bottom of the barrier plate is movably inserted into the inner wall of the mounting box. Both ends of the cover plate are threaded with fixing screws. The cover plate is threadedly fixed to the top of the mounting box by the fixing screws.

[0006] Preferably, a slider is fixedly connected to one side of the top of both the first and second fixed tube plates. The slider is slidably connected to one side of the inner wall of the mounting box. A slider is fixedly connected to the bottom of both the first and second fixed tube plates. A support rod is fixedly connected to the inner wall of the mounting box. The slider is slidably connected to the surface of the support rod. The sliding directions of the first and second fixed tube plates are opposite.

[0007] Preferably, a fixing rod is fixedly connected to the inner wall of the mounting box, and a guide block is fixedly connected to the end of the fixing rod away from the mounting box.

[0008] Preferably, the inner walls of the export block, guide block, and import block are all rotatably connected with ball bearings to assist the cable in sliding operation.

[0009] Preferably, a second heat dissipation fin is fixedly inserted into the side of the barrier plate, a first heat dissipation fin is fixedly connected through the end of the barrier plate away from the mounting box, and a through hole is opened at the end of the barrier plate away from the second heat dissipation fin.

[0010] Preferably, a plug is fixedly connected to one side of the second fixed tube sheet, and the plug is movably inserted into the side of the first fixed tube sheet.

[0011] Preferably, a fixing block is fixedly connected to the bottom of the cover plate, and the fixing block is movably inserted into the top of the mounting box.

[0012] Preferably, both sides of the mounting box are fixedly connected to connecting plates, which are used for fixing the equipment to the cabinet.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses a fixed sleeve, a fixed tube plate one, and a fixed tube plate two to fix the cable's entry and exit ends, thereby reducing the damage to the cable's sheath caused by concentrated stress on the cable surface. At the same time, it can also limit the cable's movement, thereby improving the stability of the cable routing. This utility model uses a barrier plate, a heat dissipation fin one, and a heat dissipation fin two. The barrier plate can not only quickly snap and fix the cover plate, but also dissipate the heat generated by the separated cables during operation through the heat dissipation fin two. Then, the heat dissipation effect of the device is improved through the through holes opened at one end of the heat dissipation fin one and the barrier plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model after being disassembled. Figure 3 This utility model Figure 2Schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the structure of fixed tube sheet one and fixed tube sheet two of this utility model; Figure 5 This is a schematic diagram of the overall structure of this utility model rotated 180 degrees and then disassembled.

[0015] In the diagram: 1. Cover plate; 2. Heat dissipation fin one; 3. Barrier plate; 4. Guide block; 5. Connecting plate; 6. Mounting box; 7. Fixing screw; 8. Fixing insert; 9. Fixing sleeve; 10. Fixing tube sheet one; 11. Fixing tube sheet two; 12. Support rod; 13. Fixing rod; 14. Ball bearing; 15. Guide block; 16. Fixing plate; 17. Hinge; 18. Rotating latch; 19. Slider one; 20. Slider two; 21. Insert block; 22. Guide block; 23. Heat dissipation fin two. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 This utility model provides a technical solution: a wiring trough for a high-voltage removable switchgear, including a mounting box 6, and further comprising, Export block 4 and import block 22. One side of export block 4 is fixedly connected to a fixed sleeve 9. One side of import block 22 is provided with a fixed tube plate 10 and a fixed tube plate 21. The fixed sleeve 9, fixed tube plate 10 and fixed tube plate 21 are all L-shaped. The surface of fixed tube plate 10 is fixedly connected to a hinge 17. Fixed tube plate 10 is rotatably connected to a fixed plate 16 through hinge 17. The surface of fixed tube plate 21 is rotatably connected to a rotating block 18. The rotating block 18 rotates and fixes the fixed plate 16. The cover plate 1 has a barrier plate 3 fixedly connected through its side. The bottom of the barrier plate 3 is movably inserted into the inner wall of the mounting box 6. The two ends of the cover plate 1 are threaded with fixing screws 7. The cover plate 1 is threadedly fixed to the top of the mounting box 6 by the fixing screws 7.

[0018] Furthermore, a slider 19 is fixedly connected to one side of the top of both the first fixed tube plate 10 and the second fixed tube plate 11. The slider 19 is slidably connected to one side of the inner wall of the mounting box 6. A slider 20 is fixedly connected to the bottom of both the first fixed tube plate 10 and the second fixed tube plate 11. A support rod 12 is fixedly connected to the inner wall of the mounting box 6. The slider 20 is slidably connected to the surface of the support rod 12, which improves the stability of the first fixed tube plate 10 and the second fixed tube plate 11 when sliding. The sliding directions of the first fixed tube plate 10 and the second fixed tube plate 11 are opposite.

[0019] Furthermore, a fixing rod 13 is fixedly connected to the inner wall of the mounting box 6, and a guide block 15 is fixedly connected to the end of the fixing rod 13 away from the mounting box 6 to guide the cable.

[0020] Furthermore, the inner walls of the export block 4, guide block 15 and import block 22 are all rotatably connected with ball bearings 14 to improve the smoothness of cable introduction and to assist the cable in sliding operation.

[0021] Furthermore, a second heat dissipation fin 23 is fixedly inserted into the side of the barrier plate 3, and a first heat dissipation fin 2 is fixedly connected through the end of the barrier plate 3 away from the mounting box 6. A through hole is opened at the end of the barrier plate 3 away from the second heat dissipation fin 23 to facilitate air circulation and further improve the heat dissipation effect.

[0022] Furthermore, a plug 21 is fixedly connected to one side of the fixed tube sheet 2 11 to improve the stability and airtightness of the connection between the fixed tube sheet 1 10 and the fixed tube sheet 2 11. The plug 21 is movably inserted into the side of the fixed tube sheet 1 10.

[0023] Furthermore, a fixing block 8 is fixedly connected to the bottom of the cover plate 1, which further increases the sealing and stability of the cover plate 1 installation. The fixing block 8 is movably inserted into the top of the mounting box 6.

[0024] Furthermore, connecting plates 5 are fixedly connected to both sides of the mounting box 6 to increase the stability of the device when it is fixed. The connecting plates 5 are used to fix the device to the cabinet.

[0025] Working principle: Based on the cable height, the cable can be stretched from the guide block 22 at different heights into the mounting box 6, then passed through the guide block 15, and pulled out from the fixing sleeve 9 and the exit block 4, thus completing the cable introduction. Then, the device is connected to the switch cabinet via the connecting plate 5 and screws. The cable position is adjusted to prevent coiling during fixing, which could damage the cable sheath. After the cable is adjusted, the fixing tube plate 10 and fixing tube plate 21 are slid together to fit against the cable's inlet end. At this point, the insertion block 21 of fixing tube plate 21 engages with one side of fixing tube plate 10, and then... Rotate the fixing plate 16 through the hinge 17 so that the through groove at one end of the fixing plate 16 passes through the rotating block 18. Then rotate the rotating block 18 to lock the fixing plate 16, thereby completing the fixing operation of the cable by the fixing tube plate 10 and the fixing tube plate 2 11. Since the fixing sleeve 9, the fixing tube plate 10 and the fixing tube plate 2 11 are all L-shaped, the stress concentrated on the cable sheath due to the right angle is reduced, and the cable can be fixed in categories. Since the fixing tube plate 10 and the fixing tube plate 2 11 are multi-layered, the fixing tube plate 10 and the fixing tube plate 2 11 located at the bottom of the cable inlet port are open, which will not affect the cable pulling operation. After the cable is fixed, the barrier plate 3 is inserted into the inner wall of the mounting box 6, so that the bottom of the top of the cover plate 1 fits against the top of the mounting box 6. The design of the barrier plate 3 can not only perform a quick positioning and snap-fit ​​operation of the cover plate 1, but also block the cable, reduce interference, and ensure signal and power stability. In addition, the heat dissipation fins 23 installed on the side of the barrier plate 3 can also play a good heat conduction effect, reducing the impact of high temperature on the cable. Then, the cover plate 1 and the mounting box 6 are fixed by screws 7.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 wiring trough for a high-voltage withdrawable switchgear, comprising a mounting enclosure (6), characterized in that: It also includes, The export block (4) and the import block (22) are provided with a fixed sleeve (9) fixed on one side of the export block (4) and a fixed tube plate one (10) and a fixed tube plate two (11) on one side of the import block (22). The fixed sleeve (9), the fixed tube plate one (10) and the fixed tube plate two (11) are all L-shaped. The surface of the fixed tube plate one (10) is fixedly connected with a hinge (17). The fixed tube plate one (10) is rotatably connected to a fixed plate (16) through the hinge (17). The surface of the fixed tube plate two (11) is rotatably connected with a rotating block (18). The rotating block (18) rotates and fixes the fixed plate (16). The cover plate (1) has a barrier plate (3) fixedly connected through its side. The bottom of the barrier plate (3) is movably inserted into the inner wall of the mounting box (6). The two ends of the cover plate (1) are threaded with fixing screws (7). The cover plate (1) is threadedly fixed to the top of the mounting box (6) by the fixing screws (7).

2. The wiring trough of a high-voltage withdrawable switchgear according to claim 1, characterized in that: Slider 1 (19) is fixedly connected to one side of the top of fixed tube plate 1 (10) and fixed tube plate 2 (11). Slider 1 (19) is slidably connected to one side of the inner wall of the mounting box (6). Slider 2 (20) is fixedly connected to the bottom side of fixed tube plate 1 (10) and fixed tube plate 2 (11). Support rod (12) is fixedly connected to the inner wall of the mounting box (6). Slider 2 (20) is slidably connected to the surface of support rod (12). The sliding directions of fixed tube plate 1 (10) and fixed tube plate 2 (11) are opposite.

3. The wiring trough of a high-voltage withdrawable switchgear according to claim 1, characterized in that: A fixing rod (13) is fixedly connected to the inner wall of the mounting box (6), and a guide block (15) is fixedly connected to the end of the fixing rod (13) away from the mounting box (6).

4. The wiring trough of a high-voltage withdrawable switchgear according to claim 1, characterized in that: The inner walls of the export block (4), guide block (15) and import block (22) are all rotatably connected with ball bearings (14) to assist the cable in sliding operation.

5. The wiring trough of a high-voltage withdrawable switchgear according to claim 1, characterized in that: The side of the barrier plate (3) is fixedly connected to a second heat dissipation fin (23). The end of the barrier plate (3) away from the mounting box (6) is fixedly connected to a first heat dissipation fin (2). The end of the barrier plate (3) away from the second heat dissipation fin (23) has a through hole.

6. The wiring trough of a high-voltage withdrawable switchgear according to claim 1, characterized in that: A plug (21) is fixedly connected to one side of the second fixed tube plate (11), and the plug (21) is movably inserted into the side of the first fixed tube plate (10).

7. The wiring trough of a high-voltage withdrawable switchgear according to claim 1, characterized in that: The bottom of the cover plate (1) is fixedly connected to a fixing block (8), which is movably inserted into the top of the mounting box (6).

8. The wiring trough of a high-voltage withdrawable switchgear according to claim 1, characterized in that: Both sides of the mounting box (6) are fixedly connected to connecting plates (5), which are used to fix the equipment to the cabinet.

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