Electric power protection sleeve

Abstract

The utility model relates to the technical field of electric power protection, and discloses an electric power protection sleeve, which comprises a sleeve structure and a connecting structure, the main body of the sleeve structure is a pipe body made of chlorinated polyvinyl chloride, and the pipe body is provided with an air hole for maintaining the internal air pressure of the pipe body. A breathable film integrally formed with the pipe body through a hot pressing process is arranged at the position of the breathable hole, and an anti-collision net is further fixedly arranged on the side wall of the breathable hole and located on the outer layer of the breathable film. The connecting structure comprises a check block fixedly installed on the outer surface of the pipe body and a magnet embedded in the end face of the pipe body. According to the electric power protection sleeve, a gas-permeable membrane made of ePTFE (expanded polytetrafluoroethylene) is embedded in the non-pressure-bearing side of a sleeve body, the outer layer of the gas-permeable membrane is covered with a metal anti-collision net, the aperture of the ePTFE membrane is 0.1-1 micrometer, gas can be allowed to pass through the ePTFE membrane, liquid water and dust are blocked, the gas-permeable membrane and the sleeve body are seamlessly combined through the hot pressing technology, and the gas-permeable membrane is not prone to falling off. And reduction of mechanical strength caused by traditional trepanning is avoided.

Description

Technical Field

[0001] This utility model relates to the field of power protection technology, specifically to a power protection sleeve. Background Technology

[0002] In power engineering, conduits are installed to protect cables, thereby ensuring cable performance and meeting power requirements.

[0003] During actual installation of bushings, due to the influence of different environments, condensation or air pressure fluctuations may occur inside the bushing due to temperature changes, affecting the protective performance of the bushing. Therefore, we propose a power protection bushing to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a power protection sleeve that solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a power protection sleeve, comprising: a sleeve structure and a connecting structure. The main body of the sleeve structure is a tube made of chlorinated polyvinyl chloride. The tube body has vent holes for maintaining the internal air pressure. A breathable membrane is integrally formed with the tube body through a hot-pressing process at the vent holes. An anti-collision net is also fixedly installed on the side wall of the vent holes, and the anti-collision net is located on the outer layer of the breathable membrane. The connecting structure includes a stop block fixedly installed on the outer surface of the tube body, a magnet embedded in the end face of the tube body, a receiving groove also opened on the end face of the tube body, a sealing ring engaged in the receiving groove, and a connecting pipe and a clamp for connecting two tube bodies. A bolt is threaded onto the clamp. A plug is fixedly installed on the end face of one of the tube bodies, while a slot is opened on the other tube body. The two tube bodies are interlocked through the plug and the slot.

[0006] Preferably, the anti-collision net has an arc-shaped structure design, and the arc of the anti-collision net is consistent with the arc of the pipe body.

[0007] Preferably, the breathable membrane is made of expanded polytetrafluoroethylene, and the breathable membrane overlaps with the inner wall of the tube.

[0008] Preferably, the vent is located on the non-pressure-bearing side of the pipe.

[0009] Preferably, the connecting pipe has a groove for accommodating the clamp, and both ends of the clamp are threadedly connected to bolts.

[0010] Preferably, the end of the connector can contact the stop block, and the connector is made of rubber.

[0011] Preferably, the insertion rod has an L-shaped structure design.

[0012] Preferably, the slot is designed with an opening, and the opening of the slot is L-shaped as it is mapped onto the arc-shaped outer surface of the tube.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This power protection sleeve has a breathable membrane made of ePTFE (expanded polytetrafluoroethylene) embedded on the non-pressure side of the tube body, and a metal anti-collision mesh is covered on the outer layer of the breathable membrane. The pore size of the ePTFE membrane is 0.1 to 1 μm, which allows gas to pass through but blocks liquid water and dust. Furthermore, the breathable membrane is seamlessly bonded to the tube body through a hot pressing process, avoiding the decrease in mechanical strength caused by traditional openings.

[0015] 2. This power protection sleeve connects two pipe bodies through a connecting structure. The insert, slot and magnet cooperate with each other to fix the two pipe bodies in advance. It is convenient for the user to restrict the connection at the joint of the pipe bodies and use bolts to tighten the clamps to maintain the concentricity of the two pipe bodies and fix them to each other. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the anti-collision mesh structure of this utility model;

[0018] Figure 3 This is an exploded view of the connection structure of this utility model;

[0019] Figure 4 This is an exploded view of the tube structure of this utility model.

[0020] In the diagram: 1. Sleeve structure; 11. Pipe body; 12. Anti-collision net; 13. Ventilation hole; 14. Ventilation membrane; 2. Connection structure; 21. Connecting pipe; 22. Hoop; 23. Bolt; 24. Stop block; 25. Slot; 26. Insert rod; 27. Magnet; 28. Receiving groove; 29. ​​Sealing ring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4A power protection sleeve includes: a sleeve structure 1 and a connecting structure 2. The main body of the sleeve structure 1 is a tube 11 made of chlorinated polyvinyl chloride. The tube 11 has a vent hole 13 for maintaining the internal air pressure of the tube 11. A breathable membrane 14 integrally formed with the tube 11 by hot pressing is provided at the vent hole 13. An anti-collision net 12 is also fixedly provided on the side wall of the vent hole 13. The anti-collision net 12 is located on the outer layer of the breathable membrane 14. The anti-collision net 12 has an arc-shaped structure design, and the arc of the anti-collision net 12 is consistent with the arc of the tube 11. The breathable membrane 14 is made of expanded polytetrafluoroethylene, thereby achieving the "breathing" function while maintaining waterproof / dustproof performance, avoiding condensation accumulation, extending the cable life, and eliminating the need for additional sealing operations, reducing maintenance costs. The breathable membrane 14 overlaps with the inner wall of the tube 11, and the vent hole 13 is located on the non-pressure-bearing side of the tube 11.

[0023] The connecting structure 2 includes a stop 24 fixedly installed on the outer surface of the tube body 11, a magnet 27 embedded in the end face of the tube body 11, a receiving groove 28 also opened on the end face of the tube body 11, a sealing ring 29 engaged inside the receiving groove 28, and a connecting pipe 21 and a clamp 22 for connecting the two tube bodies 11. A bolt 23 is threaded onto the clamp 22. A rod 26 is fixedly installed on the end face of one tube body 11, while a slot 25 is opened on the other tube body 11. The two tube bodies 11 are interlocked via the rod 26 and the slot 25. A groove for accommodating the clamp 22 is opened on the connecting pipe 21. Both ends of the clamp 22 are threaded onto the bolt 23. The end of the connecting pipe 21 can contact the stop 24, and the connecting pipe 21 is open to the bolt 23. Made of rubber, the insertion rod 26 has an L-shaped structure design, and the slot 25 has an open design. The opening of the slot 25 is mapped to the L-shaped shape of the arc-shaped outer surface of the tube body 11. When the two tube bodies 11 are spliced, the insertion rod 26 on the tube body 11 is first inserted into the slot 25 of the other tube body 11. Then, the tube body 11 with the insertion rod 26 is rotated so that the end of the insertion rod 26 is inserted into the corner of the slot 25. At this time, the magnets 27 on the end faces of the two tube bodies 11 are attracted to each other by magnetic force. The stop blocks 24 on the outer surfaces of the two tube bodies 11 can restrict the connecting pipe 21 at the unsealed part of the tube body 11. Then, the bolts 23 are tightened to tighten the two ends of the clamp 22, thereby tightening the connecting pipe 21 and tightly connecting the two tube bodies 11.

[0024] 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. An electrical power bushing, characterized by include: The sleeve structure (1) and the connecting structure (2) are provided. The main body of the sleeve structure (1) is a tube (11) made of chlorinated polyvinyl chloride. The tube (11) is provided with a vent hole (13) for maintaining the internal air pressure of the tube (11). A breathable membrane (14) integrally formed with the tube (11) by hot pressing is provided at the vent hole (13). An anti-collision net (12) is also fixedly provided on the side wall of the vent hole (13). The anti-collision net (12) is located on the outer layer of the breathable membrane (14). The connection structure (2) includes a stop block (24) fixedly installed on the outer surface of the tube body (11), a magnet (27) embedded in the end face of the tube body (11), a receiving groove (28) also opened on the end face of the tube body (11), a sealing ring (29) engaged in the receiving groove (28), and a connecting pipe (21) and a clamp (22) for connecting the two tube bodies (11). The clamp (22) is threaded with a bolt (23). One of the tube bodies (11) is fixedly installed with a plug rod (26) on its end face, while the other tube body (11) is provided with a slot (25). The two tube bodies (11) are connected to each other by the plug rod (26) and the slot (25).

2. An electrical power bushing according to claim 1, characterized in that The anti-collision net (12) is designed with an arc shape, and the arc of the anti-collision net (12) is consistent with the arc of the tube body (11).

3. An electrical power bushing according to claim 1, characterized in that The breathable membrane (14) is made of expanded polytetrafluoroethylene, and the breathable membrane (14) overlaps with the inner wall of the tube (11).

4. An electrical power bushing according to claim 1, characterized in that The vent (13) is located on the non-pressure side of the pipe body (11).

5. An electrical power bushing according to claim 1, characterized in that The connecting pipe (21) has a groove for accommodating the clamp (22), and both ends of the clamp (22) are threadedly connected to bolts (23).

6. An electrical power bushing according to claim 1, characterized in that The end of the connector (21) can contact the stop (24), and the connector (21) is made of rubber.

7. An electrical power bushing according to claim 1, characterized in that The insertion rod (26) has an L-shaped structure design.

8. An electrical power bushing according to claim 1, characterized in that The slot (25) is designed with an opening, and the opening of the slot (25) is mapped onto the arc-shaped outer surface of the tube body (11) in an L-shape.

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