A sealed cable protection tube

Abstract

The application discloses a sealed cable protection pipe and belongs to the technical field of electrical engineering and cable laying, which comprises a cable protection pipe body, a sealing assembly cavity is formed in the cable protection pipe body, two sealing rubber rings are arranged on the inner side of the cable protection pipe body, a heat-conducting antiskid layer is arranged on the inner side of the cable protection pipe body, a plurality of first heat transfer through holes are formed in the heat-conducting antiskid layer, an elastic expansion and contraction adaptive layer is arranged on the outer side of the heat-conducting antiskid layer, the elastic expansion and contraction adaptive layer comprises a plurality of fan-shaped combined connecting pieces, and a plurality of second heat transfer through holes are formed in the fan-shaped combined connecting pieces. The continuous heat dissipation passage composed of the multilayer axial through holes is arranged, the heat of the cable is quickly absorbed in cooperation with the heat-conducting antiskid layer on the inner side, the working heat can be efficiently conducted and dissipated outward, and the heat accumulation in the pipe can be effectively avoided to cause the aging and performance attenuation of the cable insulation layer.

Description

Technical Field

[0001] This invention belongs to the field of electrical engineering and cable laying technology, and specifically relates to a sealed cable protection pipe. Background Technology

[0002] Sealed cable protection pipes are specialized pipes that integrate sealing functions on the basis of traditional cable protection pipes. They are mainly used in underground power and communication cable laying projects. They can provide waterproof, moisture-proof, rodent-proof, and mud and sand intrusion protection for the gap between the cable and the pipe body, thereby improving the stability and service life of the cable operation.

[0003] Most existing cable protection pipes only have basic protection functions and cannot simultaneously take into account thermal expansion and contraction stress compensation, efficient heat dissipation, pressure resistance buffering and long-term rodent and insect prevention. Their comprehensive protection performance is insufficient and it is difficult to meet the long-term stable use requirements of complex underground laying environments. Therefore, a sealed cable protection pipe is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a sealed cable protection tube to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sealed cable protection pipe, comprising a cable protection pipe body, wherein a sealing component cavity is formed inside the cable protection pipe body, two sealing rubber rings are provided on the inner side of the cable protection pipe body, a heat-conducting and anti-slip layer is provided on the inner side of the cable protection pipe body, a plurality of first heat transfer through holes are formed inside the heat-conducting and anti-slip layer, an elastic expansion and contraction adapter layer is provided on the outer side of the heat-conducting and anti-slip layer, the elastic expansion and contraction adapter layer comprising a plurality of fan-shaped combined connectors, a plurality of second heat transfer through holes are formed inside the plurality of fan-shaped combined connectors, and a plurality of elastic adaptors are fixedly connected to both ends of the plurality of fan-shaped combined connectors. The outer side of the elastic expansion and contraction adapter layer is provided with an I-beam support layer. The interior of the I-beam support layer is provided with several third heat transfer through holes. The outer side of the I-beam support layer is provided with a spring buffer layer. The interior of the spring buffer layer is provided with several fourth heat transfer through holes. The outer side of the spring buffer layer is provided with a composite rodent-repellent and insect-repellent microcapsule agent layer. The interior of the composite rodent-repellent and insect-repellent microcapsule agent layer is provided with several fifth heat transfer through holes. The outer side of the composite rodent-repellent and insect-repellent microcapsule agent layer is provided with an agent release layer. The interior of the agent release layer is provided with an agent release cavity. The interior of the agent release layer is provided with several sixth heat transfer through holes.

[0006] As a preferred embodiment, the two sealing rubber rings are located inside the sealing assembly cavity.

[0007] As a preferred embodiment, the thermally conductive and anti-slip layer, the elastic expansion and contraction adapting layer, the I-beam support layer, the spring buffer layer, the composite rodent-repellent and insect-repellent microcapsule agent layer, and the agent release layer are arranged coaxially and nested sequentially from the inside out.

[0008] As a preferred embodiment, the fan-shaped combined connectors are evenly distributed in a ring shape inside the elastic expansion and contraction adaptation layer, and a second heat transfer through hole is opened between adjacent fan-shaped combined connectors.

[0009] As a preferred embodiment, the fan-shaped combined connector and the elastic adaptor are an integrated support structure, which together constitute an elastic expansion and contraction adaptor layer.

[0010] As a preferred embodiment, the first heat transfer through hole, the second heat transfer through hole, the third heat transfer through hole, the fourth heat transfer through hole, the fifth heat transfer through hole and the sixth heat transfer through hole are positioned correspondingly and are axially connected.

[0011] As a preferred embodiment, the I-beam support layer is a rigid support structure, and the spring buffer layer is an elastic buffer structure.

[0012] As a preferred embodiment, the composite rodent-repellent and insect-proof microcapsule agent layer slowly releases the agent through the agent release layer, the agent release cavity, and the sixth heat transfer through hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention, by setting up a continuous heat dissipation path composed of multiple axially penetrating holes and cooperating with an inner heat-conducting and anti-slip layer to quickly absorb the heat of the cable, can efficiently conduct and dissipate the working heat to the outside, effectively avoid the accumulation of heat in the pipe causing aging and performance degradation of the cable insulation layer, and significantly improve the overall heat dissipation efficiency and long-term operational stability of the cable. This invention utilizes the interaction between the heat conduction process and the composite rodent-repellent and insect-repellent microcapsule agent layer to achieve efficient heat dissipation while gently promoting the uniform, slow, and continuous release of the agent. Combined with the agent release layer, agent release cavity, and sixth heat transfer through hole to form a stable slow-release channel, it achieves long-lasting rodent repellency, insect prevention, and anti-bite corrosion in underground environments, effectively extending the service life of protective pipes and cables. This invention utilizes an elastic expansion and contraction adapting layer composed of fan-shaped combined connectors and elastic adapting components to effectively absorb the thermal expansion and contraction stress caused by temperature changes in the pipe body, preventing cracking and deformation. At the same time, combined with the rigid support of the I-beam support layer and the elastic buffering effect of the spring buffer layer, it significantly improves the overall pressure resistance, impact resistance, and shock absorption performance of the pipe body, ensuring the integrity and durability of the pipe structure and adapting to complex underground heavy-load laying scenarios. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the invention during an explosion; Figure 3 This is a front cross-sectional view of the present invention. Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the structure of the present invention in cross-section from the side; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B.

[0015] In the diagram: 1. Cable protection pipe body; 2. Sealing component cavity; 3. Sealing rubber ring; 4. Thermally conductive and anti-slip layer; 5. First heat transfer through hole; 6. Elastic expansion and contraction adaptation layer; 7. Fan-shaped combined connector; 8. Second heat transfer through hole; 9. Elastic adaptation component; 10. I-beam support layer; 11. Third heat transfer through hole; 12. Spring buffer layer; 13. Fourth heat transfer through hole; 14. Composite rodent and insect repellent microcapsule agent layer; 15. Fifth heat transfer through hole; 16. Agent release layer; 17. Agent release cavity; 18. Sixth heat transfer through hole. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figure 1-6This invention provides a sealed cable protection pipe, comprising a cable protection pipe body 1, a sealing component cavity 2 inside the cable protection pipe body 1, two sealing rubber rings 3 on the inner side of the cable protection pipe body 1, a heat-conducting and anti-slip layer 4 on the inner side of the cable protection pipe body 1, a plurality of first heat transfer through holes 5 inside the heat-conducting and anti-slip layer 4, and an elastic expansion and contraction adaptation layer 6 on the outer side of the heat-conducting and anti-slip layer 4. The elastic expansion and contraction adaptation layer 6 includes a plurality of fan-shaped combined connectors 7, a plurality of second heat transfer through holes 8 inside the plurality of fan-shaped combined connectors 7, and a plurality of elastic adaptors 9 fixedly connected to both ends of the plurality of fan-shaped combined connectors 7. The outer side of the elastic expansion and contraction adaptation layer 6 is provided with The I-beam support layer 10 has several third heat transfer holes 11 inside. The outer side of the I-beam support layer 10 has a spring buffer layer 12 with several fourth heat transfer holes 13 inside. The outer side of the spring buffer layer 12 has a composite rodent repellent and insect repellent microcapsule agent layer 14 with several fifth heat transfer holes 15 inside. The outer side of the composite rodent repellent and insect repellent microcapsule agent layer 14 has an agent release layer 16 with an agent release cavity 17 inside. The outer side of the agent release layer 16 has several sixth heat transfer holes 18.

[0019] The two sealing rubber rings 3 are located inside the sealing component cavity 2.

[0020] The thermally conductive and anti-slip layer 4, the elastic expansion and contraction adaptation layer 6, the I-beam support layer 10, the spring buffer layer 12, the composite rodent-repellent and insect-repellent microcapsule agent layer 14, and the agent release layer 16 are arranged coaxially and nested from the inside to the outside.

[0021] The fan-shaped combined connectors 7 are evenly distributed in a ring inside the elastic expansion and contraction adapter layer 6, and a second heat transfer through hole 8 is opened between adjacent fan-shaped combined connectors 7.

[0022] The fan-shaped combined connector 7 and the elastic adaptor 9 are an integrated support structure, which together form the elastic expansion and contraction adaptor layer 6, used to absorb the thermal expansion and contraction deformation and radial stress of the pipe body.

[0023] The first heat transfer through hole 5, the second heat transfer through hole 8, the third heat transfer through hole 11, the fourth heat transfer through hole 13, the fifth heat transfer through hole 15 and the sixth heat transfer through hole 18 are positioned correspondingly and are axially connected to form a continuous heat dissipation path.

[0024] The I-beam support layer 10 is a rigid support structure, and the spring buffer layer 12 is an elastic buffer structure. The two work together to achieve the functions of compression resistance and shock absorption.

[0025] The compound rodent-repellent and insect-preventing microcapsule agent layer 14 slowly releases the agent through the agent release layer 16, agent release cavity 17 and sixth heat transfer through hole 18 to achieve long-lasting rodent-repellent and insect-preventing effect.

[0026] Working principle and usage process of this invention: When in use, the invention is entirely fitted over the outside of the cable, and the interface is tightly connected by the double sealing rubber rings 3 in the sealing component cavity 2 inside the cable protection tube body 1. In operation, the heat generated by the cable is absorbed by the inner heat-conducting and anti-slip layer 4, and is quickly conducted outward through the axial through-hole heat dissipation path formed by the first heat transfer through-hole 5, the second heat transfer through-hole 8, the third heat transfer through-hole 11, the fourth heat transfer through-hole 13, the fifth heat transfer through-hole 15 and the sixth heat transfer through-hole 18. During the conduction process, the heat comes into contact with the composite rodent and insect repellent microcapsule agent layer 14, promoting the slow release of the agent through the agent release layer 16, the agent release cavity 17 and the sixth heat transfer through-hole 18, so as to achieve long-term rodent and insect repellency. Meanwhile, the elastic expansion and contraction adaptation layer 6, composed of the fan-shaped combined connector 7 and the elastic adaptation component 9, can effectively absorb the deformation stress generated by the thermal expansion and contraction of the pipe body. The I-beam support layer 10 and the spring buffer layer 12 work together to achieve rigid support and elastic buffering, significantly improving the pipe body's pressure resistance and shock absorption performance. With the synergistic effect of the multi-layer coaxial nested structure, the present invention can simultaneously achieve multiple functions such as interface sealing, efficient heat dissipation, stress compensation, pressure resistance buffering and rodent and insect repellent, and stably adapt to complex underground laying environments.

[0027] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed cable protection pipe, comprising a cable protection pipe body (1), characterized in that: The cable protection pipe body (1) has a sealing component cavity (2) inside. Two sealing rubber rings (3) are provided on the inner side of the cable protection pipe body (1). A heat-conducting and anti-slip layer (4) is provided on the inner side of the cable protection pipe body (1). Several first heat transfer through holes (5) are provided inside the heat-conducting and anti-slip layer (4). An elastic expansion and contraction adapter layer (6) is provided on the outer side of the heat-conducting and anti-slip layer (4). The elastic expansion and contraction adapter layer (6) includes multiple fan-shaped combined connectors (7). Several second heat transfer through holes (8) are provided inside the multiple fan-shaped combined connectors (7). Multiple elastic adaptors (9) are fixedly connected to both ends of the multiple fan-shaped combined connectors (7). An I-beam support bearing layer (10) is provided on the outer side of the elastic expansion and contraction adapter layer (6). The interior of the I-beam support layer (10) is provided with several third heat transfer through holes (11). The exterior of the I-beam support layer (10) is provided with a spring buffer layer (12). The interior of the spring buffer layer (12) is provided with several fourth heat transfer through holes (13). The exterior of the spring buffer layer (12) is provided with a composite rodent repellent and insect repellent microcapsule agent layer (14). The interior of the composite rodent repellent and insect repellent microcapsule agent layer (14) is provided with several fifth heat transfer through holes (15). The exterior of the composite rodent repellent and insect repellent microcapsule agent layer (14) is provided with an agent release layer (16). The interior of the agent release layer (16) is provided with an agent release cavity (17). The interior of the agent release layer (16) is provided with several sixth heat transfer through holes (18).

2. The sealed cable protection pipe according to claim 1, characterized in that: The two sealing rubber rings (3) are located inside the sealing assembly cavity (2).

3. A sealed cable protection pipe according to claim 1, characterized in that: The thermally conductive and anti-slip layer (4), the elastic expansion and contraction adaptation layer (6), the I-beam support layer (10), the spring buffer layer (12), the composite rodent-repellent and insect-repellent microcapsule agent layer (14), and the agent release layer (16) are arranged coaxially and nested from the inside to the outside.

4. A sealed cable protection pipe according to claim 1, characterized in that: The fan-shaped combined connector (7) is evenly distributed in a ring inside the elastic expansion and contraction adapter layer (6), and a second heat transfer through hole (8) is opened between adjacent fan-shaped combined connectors (7).

5. A sealed cable protection pipe according to claim 4, characterized in that: The fan-shaped combined connector (7) and the elastic adaptor (9) are an integrated support structure, which together constitute the elastic expansion and contraction adaptor layer (6).

6. A sealed cable protection pipe according to claim 1, characterized in that: The first heat transfer through hole (5), the second heat transfer through hole (8), the third heat transfer through hole (11), the fourth heat transfer through hole (13), the fifth heat transfer through hole (15), and the sixth heat transfer through hole (18) are in corresponding positions and are axially connected.

7. A sealed cable protection pipe according to claim 3, characterized in that: The I-beam support layer (10) is a rigid support structure, and the spring buffer layer (12) is an elastic buffer structure.

8. A sealed cable protection pipe according to claim 3, characterized in that: The composite rodent-repellent and insect-proof microcapsule agent layer (14) slowly releases the agent through the agent release layer (16), the agent release cavity (17) and the sixth heat transfer through hole (18).

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