PVC (polyvinyl chloride) cable protection pipe with multi-layer composite structure

Abstract

The utility model discloses a PVC cable protection tube with a multilayer composite structure, which comprises a composite protection tube main body, a heat dissipation frame is arranged in the composite protection tube main body, an elastic tube plug is fixedly arranged on the front surface of the composite protection tube main body, and a tube connecting sleeve is fixedly arranged on the rear surface of the composite protection tube main body. According to the PVC cable protection pipe of the multilayer composite structure, the inner surface and the outer surface of the composite protection pipe body are not prone to being scratched, the surfaces are prevented from cracking along scratched gaps after long-time use, the PVC cable protection pipe is provided with a flame-retardant structure, the safety of the PVC cable protection pipe is higher, the heat dissipation frame can accelerate air flow in the composite protection pipe body, and the service life of the composite protection pipe body is prolonged. According to the PVC cable protection pipe, heat dissipation of a cable can be accelerated, the PVC cable protection pipe can move along a straight line in the composite protection pipe body, the PVC cable protection pipe is firmer and better in sealing performance after being spliced through the elastic pipe plug and the pipe connecting sleeve, the splicing process is convenient, and the splicing mode is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC cable protection pipe structures, and particularly relates to a PVC cable protection pipe with a multi-layer composite structure. Background Technique

[0002] Cable protection pipes mainly include types such as PVC, PE, HDPE, steel-plastic composite, silica gel, PA, etc. The PVC cable protection pipe is made of polyvinyl chloride (PVC) and has good chemical corrosion resistance and insulation performance. It is suitable for cable protection for indoor or underground laying.

[0003] Existing PVC cable protection pipes have certain drawbacks when in use. Traditional PVC cable protection pipes are of a single-layer structure, are easily scratched, and during long-term use, the surface of the PVC cable protection pipe is prone to cracking along the scratched gaps. There is no flame-retardant layer, and when splicing PVC cable protection pipes, the splicing is not firm enough, the sealing performance is poor, and there is no sealing structure and limiting structure. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a PVC cable protection pipe with a multi-layer composite structure, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A PVC cable protection pipe with a multi-layer composite structure includes a composite protection pipe body. A heat dissipation frame is arranged inside the composite protection pipe body. An elastic pipe plug is fixedly installed on the front surface of the composite protection pipe body, and a pipe socket is fixedly installed on the rear surface of the composite protection pipe body.

[0007] Preferably, the composite protection pipe body includes a PVC cable protection pipe body, an anti-scratch inner layer, an anti-scratch outer layer, and limiting strips.

[0008] Preferably, the anti-scratch inner layer is fixedly installed inside the PVC cable protection pipe body, the flame-retardant layer is fixedly installed outside the PVC cable protection pipe body, the anti-scratch outer layer is fixedly installed outside the flame-retardant layer, the limiting strips are fixedly installed inside the anti-scratch inner layer, and the number of installed limiting strips is three, and the limiting strips are evenly distributed inside the anti-scratch inner layer.

[0009] Preferably, the heat dissipation frame includes a heat dissipation fan and limiting support plates. The limiting support plates are fixedly installed outside the heat dissipation fan. The number of installed limiting support plates is three, and the limiting support plates are evenly distributed outside the heat dissipation fan. One end of the limiting strip passes through the lower end of the limiting support plate.

[0010] Preferably, the elastic tube plug includes a lining tube, a rubber ring, a rectangular through-hole and an elastic frame.

[0011] Preferably, the lining tube is fixedly installed on the front surface of the PVC cable protection tube main body, the rubber ring is fixedly installed on the outer side of the lining tube, the rectangular through-hole is opened on the inner side of the lining tube, the elastic frame is arranged inside the rectangular through-hole, the number of the opened rectangular through-holes is three, the rectangular through-holes are evenly distributed on the inner side of the lining tube, and an annular groove is opened on the outer side of the rubber ring.

[0012] Preferably, the pipe socket includes a socket main body and a limiting through-hole. The socket main body is fixedly installed on the rear surface of the PVC cable protection tube main body, the limiting through-hole is opened on the inner side of the socket main body, the number of the opened limiting through-holes is three, and the limiting through-holes are evenly distributed on the inner side of the socket main body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, through the arranged composite protection tube main body and the heat dissipation frame, the inner and outer surfaces of the composite protection tube main body are not easy to be scratched, avoiding cracking along the scratched gaps on the surface after long-term use. It has a flame-retardant structure, and the safety of the PVC cable protection tube is higher. The heat dissipation frame can accelerate the air flow inside the composite protection tube main body, can accelerate the heat dissipation of the cable, and can move linearly inside the composite protection tube main body. Through the arranged elastic tube plug and the pipe socket, the elastic tube plug and the pipe socket make the PVC cable protection tube more firm and better sealed after splicing, and the splicing process is convenient and the splicing method is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 is a schematic diagram of the overall structure of a multi-layer composite structure PVC cable protection tube of the utility model; FIG. 2 is an enlarged schematic diagram of part B in FIG. 1 of a multi-layer composite structure PVC cable protection tube of the utility model; FIG. 3 is an enlarged schematic diagram of part A in FIG. 1 of a multi-layer composite structure PVC cable protection tube of the utility model;

[0016] FIG. 4 is a partial schematic diagram of the cross-section of the composite protection tube main body of a multi-layer composite structure PVC cable protection tube of the utility model;

[0017] FIG. 5 is a schematic diagram of the structure of a part of the composite protection tube main body and the heat dissipation frame of a multi-layer composite structure PVC cable protection tube of the utility model;

[0018] FIG. 6 is an exploded schematic diagram of the structure of the elastic tube plug of a multi-layer composite structure PVC cable protection tube of the utility model;

[0019] Figure 7 is a schematic structural diagram of a pipe joint sleeve of a multi-layer composite PVC cable protection pipe of the present utility model.

[0020] In the figure: 1. Composite protection pipe main body; 101. PVC cable protection pipe main body; 102. Scratch-proof inner layer; 103. Flame-retardant layer; 104. Scratch-proof outer layer; 105. Limit strip; 2. Heat dissipation rack; 201. Heat dissipation fan; 202. Limit support plate; 3. Elastic pipe plug; 301. Liner pipe; 302. Rubber ring; 303. Rectangular through hole; 304. Elastic frame; 4. Pipe joint sleeve; 401. Pipe sleeve main body; 402. Limit through hole. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] As shown in Figures 1-7, a multi-layer composite PVC cable protection pipe includes a composite protection pipe main body 1. A heat dissipation rack 2 is provided inside the composite protection pipe main body 1. An elastic pipe plug 3 is fixedly installed on the front surface of the composite protection pipe main body 1. A pipe joint sleeve 4 is fixedly installed on the rear surface of the composite protection pipe main body 1. The inner and outer surfaces of the composite protection pipe main body 1 are not easily scratched, avoiding cracking along the scratched gaps on the surface after long-term use. It has a flame-retardant structure, making the PVC cable protection pipe safer. The heat dissipation rack 2 can accelerate the air flow inside the composite protection pipe main body 1, accelerate the heat dissipation of the cable, and can move linearly inside the composite protection pipe main body 1. The elastic pipe plug 3 and the pipe joint sleeve 4 make the PVC cable protection pipe more firmly spliced, with better sealing performance, and the splicing process is convenient and the splicing method is simple.

[0023] The composite protection tube body 1 includes a PVC cable protection tube body 101, a scratch-proof inner layer 102, a scratch-proof outer layer 104 and a limiting strip 105; the scratch-proof inner layer 102 is fixedly installed on the inner side of the PVC cable protection tube body 101, the flame-retardant layer 103 is fixedly installed on the outer side of the PVC cable protection tube body 101, the scratch-proof outer layer 104 is fixedly installed on the outer side of the flame-retardant layer 103, the limiting strip 105 is fixedly installed on the inner side of the scratch-proof inner layer 102, the number of installed limiting strips 105 is three, and the limiting strips 105 are evenly distributed on the inner side of the scratch-proof inner layer 102; the heat dissipation frame 2 includes a heat dissipation fan 201 and a limiting support plate 202, the limiting support plate 202 is fixedly installed on the outer side of the heat dissipation fan 201, the number of installed limiting support plates 202 is three, the limiting support plates 202 are evenly distributed on the outer side of the heat dissipation fan 201, and one end of the limiting strip 105 passes through the lower end of the limiting support plate 202; the elastic tube plug 3 includes a lining tube 301, a rubber ring 302, a rectangular through hole 303 and an elastic frame 304; the lining tube 301 is fixedly installed on the front surface of the PVC cable protection tube body 101, the rubber ring 302 is fixedly installed on the outer side of the lining tube 301, the rectangular through hole 303 is opened on the inner side of the lining tube 301, the elastic frame 304 is arranged inside the rectangular through hole 303, the number of opened rectangular through holes 303 is three, the rectangular through holes 303 are evenly distributed on the inner side of the lining tube 301, and an annular groove is opened on the outer side of the rubber ring 302; the pipe joint sleeve 4 includes a sleeve body 401 and a limiting through hole 402, the sleeve body 401 is fixedly installed on the rear surface of the PVC cable protection tube body 101, the limiting through hole 402 is opened on the inner side of the sleeve body 401, the number of opened limiting through holes 402 is three, and the limiting through holes 402 are evenly distributed on the inner side of the sleeve body 401.

[0024] It should be noted that the present utility model is a PVC cable protection pipe with a multi-layer composite structure. When in use, in the composite protection pipe body 1 and the heat dissipation frame 2, the anti-scratch inner layer 102 and the anti-scratch outer layer 104 prevent the inside and outside of the PVC cable protection pipe from being scratched. The flame-retardant layer 103 plays a flame-retardant role. The limit support plate 202 is responsible for supporting the heat dissipation fan 201, so that the heat dissipation fan 201 can slide along the limit strip 105. The heat dissipation fan 201 can accelerate the air flow rate inside the composite protection pipe body 1. The inner and outer surfaces of the composite protection pipe body 1 are not easily scratched, avoiding cracking along the scratched gaps on the surface after long-term use. There is a flame-retardant structure, and the safety of the PVC cable protection pipe is higher. The heat dissipation frame 2 can accelerate the air flow inside the composite protection pipe body 1, can accelerate the heat dissipation of the cable, and can move linearly inside the composite protection pipe body 1. In the elastic pipe plug 3 and the pipe socket 4, when splicing the PVC cable protection pipe, the inner lining pipe 301 is inserted into the inside of the pipe socket body 401, so that the part of the elastic frame 304 protruding from the rectangular through hole 303 is stuck inside the limit through hole 402, and the splicing is completed. The rubber ring 302 plays a sealing role, and the annular groove on the outside of the rubber ring 302 plays a role in increasing the friction. The elastic pipe plug 3 and the pipe socket 4 make the spliced PVC cable protection pipe more firm, have better sealing performance, and the splicing process is convenient and the splicing method is simple.

[0025] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A PVC cable protection pipe with a multi-layer composite structure, characterized in that: It includes a composite protection tube body (1), inside which there is a heat dissipation rack (2). An elastic tube plug (3) is fixedly installed on the front surface of the composite protection tube body (1), and a tube connection sleeve (4) is fixedly installed on the rear surface of the composite protection tube body (1).

2. The PVC cable protection pipe with a multi-layer composite structure according to claim 1, characterized in that: The composite protection tube body (1) includes a PVC cable protection tube body (101), a scratch-proof inner layer (102), a flame-retardant layer (103), a scratch-proof outer layer (104) and a limiting strip (105).

3. The PVC cable protection pipe with a multi-layer composite structure according to claim 2, characterized in that: The scratch-proof inner layer (102) is fixedly installed inside the PVC cable protection tube body (101), the flame-retardant layer (103) is fixedly installed outside the PVC cable protection tube body (101), the scratch-proof outer layer (104) is fixedly installed outside the flame-retardant layer (103), the limiting strip (105) is fixedly installed inside the scratch-proof inner layer (102), and the number of the installed limiting strips (105) is three, and the limiting strips (105) are evenly distributed inside the scratch-proof inner layer (102).

4. The PVC cable protection pipe with a multi-layer composite structure according to claim 3, characterized in that: The heat dissipation rack (2) includes a heat dissipation fan (201) and a limiting support plate (202). The limiting support plate (202) is fixedly installed outside the heat dissipation fan (201), the number of the installed limiting support plates (202) is three, the limiting support plates (202) are evenly distributed outside the heat dissipation fan (201), and one end of the limiting strip (105) passes through the lower end of the limiting support plate (202).

5. The PVC cable protection pipe with a multi-layer composite structure according to claim 4, characterized in that: The elastic tube plug (3) includes a lining tube (301), a rubber ring (302), a rectangular through hole (303) and an elastic frame (304).

6. The PVC cable protection pipe with a multi-layer composite structure according to claim 5, characterized in that: The lining tube (301) is fixedly installed on the front surface of the PVC cable protection tube body (101), the rubber ring (302) is fixedly installed outside the lining tube (301), the rectangular through hole (303) is opened inside the lining tube (3 7. A PVC cable protection pipe with a multi-layer composite structure according to claim 6, characterized in that: ​

Images