Corrugated high-temperature-resistant cable protection tube

Abstract

The utility model discloses a corrugated high-temperature-resistant cable protection tube, which belongs to the technical field of cable protection tubes and comprises an inner tube body, and a honeycomb tube body is wrapped on the outer wall of the inner tube body. The outer pipe body wraps the side, away from the inner pipe body, of the honeycomb pipe body, a corrugated pipe body is spirally wound on the outer wall of the outer pipe body, air holes are formed in the corrugated pipe body, flange rings are arranged at the two ends of the outer pipe body, and mortises are formed in the sides, away from each other, of the flange rings. Through the arrangement of the corrugated pipe body matched with the arrangement of the honeycomb pipe body, the overall pressure resistance of the cable protection pipe can be greatly improved, and meanwhile through the auxiliary improvement of the buffering effect, the impact resistance effect of the pipe body is further improved, so that the ring stiffness of the cable protection pipe is further improved, and the service life of the cable protection pipe is prolonged. And the situation that the pipe body is pressed to deform or crack due to insufficient ring stiffness is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of cable protection pipe technology, specifically a corrugated high-temperature resistant cable protection pipe. Background Technology

[0002] Cable protection pipes are metal protective pipes with a certain mechanical strength that are laid on the outer layer of cables to prevent damage. They are mainly installed at the intersection of communication cables and power lines to prevent short circuits caused by power line breaks, which could lead to energization of communication cables and steel wire ropes. This protects cables, switches, circuit boards, and even the entire device from being burned out. They also provide some isolation against magnetic field interference from power lines.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN214850246U) discloses a fire-resistant and high-temperature resistant cable protection pipe, comprising: a main structure, which includes an inner protective pipe and an outer protective pipe, with a fireproof layer between the inner and outer protective pipes; the fireproof layer is made of fireproof cloth spirally wound; the inner protective pipe has multiple sets of evenly distributed heat dissipation grooves; the inner and outer protective pipes provide dual protection for the cable, preventing easy breakage after burying the pipe underground and improving its service life; the fireproof layer provides fire protection; the inner protective pipe is made of alloy, improving thermal conductivity; and the heat dissipation grooves on the inner protective pipe improve heat dissipation efficiency.

[0004] While the aforementioned patent can improve the heat dissipation of the pipe through a multi-layered composite structure, its underground installation means that it is more prone to rupture under significant external pressure due to insufficient ring stiffness. Once the pipe ruptures, groundwater, silt, and other impurities will enter the pipe and directly contact the cable, potentially corroding it, affecting its electrical performance, or even causing short circuits. Furthermore, a ruptured pipe may expose the cable, increasing the likelihood of accidental damage. Additionally, the pressure-deformed pipe will reduce the internal space, making it difficult to pull out or reinsert the cable, thus increasing the difficulty and cost of maintenance.

[0005] Therefore, this utility model provides a corrugated high-temperature resistant cable protection pipe to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a corrugated high-temperature resistant cable protection pipe, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a corrugated high-temperature resistant cable protection pipe, comprising an inner tube body, wherein the outer wall of the inner tube body is wrapped with a honeycomb tube body;

[0010] The outer tube is wrapped around the honeycomb tube on the side away from the inner tube. The outer wall of the outer tube is spirally wound with a corrugated tube, and the corrugated tube has ventilation holes. Both ends of the outer tube are provided with flange rings, and the flange rings on the opposite sides are provided with tenons.

[0011] As a preferred technical solution of this application, the honeycomb tube body is provided with hexagonal slots evenly distributed on it, and the thickness of the honeycomb tube body is twice the thickness of the inner tube body.

[0012] As a preferred technical solution of this application, the corrugated pipe body has a hollow structure, and the width of the corrugated pipe body ribs is equal to the spacing between adjacent ribs, and the corrugated pipe body has a spiral structure.

[0013] As a preferred technical solution of this application, the diameter of the vent hole is equal to one-fifth of the width of the corrugated pipe body, and the vent holes are evenly distributed around the circumference of no less than eight groups.

[0014] As a preferred technical solution of this application, the outer diameter of the flange ring is smaller than the distribution diameter of the bellows body, and eight tenons are evenly provided on the end circumference of each flange ring, and the tenons are T-shaped.

[0015] As a preferred technical solution of this application, the tenons between adjacent outer tubes are jointly connected with tenons, the vertical end of the tenon is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom, and the flange rings between adjacent outer tubes are jointly fitted with flexible clamps.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this application are as follows:

[0018] 1. This utility model, through the design of a corrugated pipe body in conjunction with a honeycomb pipe body, can greatly improve the overall compressive strength of the cable protection pipe. At the same time, through the auxiliary enhancement of its buffering effect, it further improves the impact resistance of the pipe body, thereby further improving the ring stiffness of the cable protection pipe. This effectively reduces the occurrence of pipe body deformation or rupture due to insufficient ring stiffness, better resists long-term external forces, reduces damage caused by fatigue, and thus improves the overall durability of the pipeline and extends its service life.

[0019] 2. This utility model achieves tenon joint installation of adjacent pipes by opening tenon grooves on the flange ring end faces at both ends of the cable protection pipe and cooperating with external tenon tongues, thus completing the auxiliary connection of adjacent pipes and ensuring the stability and firmness of the connection between adjacent pipes.

[0020] 3. The design of this utility model, through the corrugated pipe body, can increase the heat transfer area between the pipe body and the outside, while disturbing the airflow to improve the heat dissipation effect. In addition, the opening of vent holes on the corrugated pipe body further improves its gas flow and enhances the overall heat dissipation effect of the cable protection pipe. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 This is a schematic diagram of the planar structure of the tenon and groove distribution of this utility model;

[0023] Figure 3 This is a schematic diagram of the planar distribution structure of the corrugated pipe of this utility model;

[0024] Figure 4 This is a schematic diagram of the axial cross-sectional structure of this utility model;

[0025] Figure 5 For the present utility model Figure 4 A magnified structural diagram of A in the middle;

[0026] Figure 6 This is a schematic diagram of the exploded structure of this utility model.

[0027] In the picture:

[0028] 1. Inner tube body; 2. Honeycomb tube body; 3. Outer tube body; 31. Corrugated tube body; 32. Flange ring; 33. Tongue and groove; 34. Vent hole. Detailed Implementation

[0029] 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.

[0030] like Figure 1-6As shown, this utility model provides a corrugated high-temperature resistant cable protection pipe, including an inner tube 1, the outer wall of which is wrapped with a honeycomb tube 2; and an outer tube 3, which is wrapped around the honeycomb tube 2 on the side away from the inner tube 1. The outer wall of the outer tube 3 is spirally wound with a corrugated tube 31, and the corrugated tube 31 is provided with a vent hole 34. Both ends of the outer tube 3 are provided with flange rings 32, and the flange rings 32 are provided with tenons 33 on the side away from each other. The inner tube 1 is made of antibacterial modified high-density polyethylene, and the outer tube 3 and the corrugated tube 31 are made of a mixture of high-density polyethylene and glass fiber, thereby improving the external strength of the outer tube 3. Through the cooperation of the corrugated tube 31 and the honeycomb tube 2, the overall buffering performance and compressive strength of the protection pipe can be improved, thereby improving the ring stiffness of the pipe and reducing the probability of deformation during use, effectively improving the service life of the cable protection pipe.

[0031] Furthermore, hexagonal slots are evenly distributed on the honeycomb tube body 2. The thickness of the honeycomb tube body 2 is twice the thickness of the inner tube body 1. The opening of the hexagonal slots in the honeycomb tube body 2 allows the air layer inside the hexagonal slots to effectively block heat conduction, improve its heat insulation effect, and at the same time give it good buffering performance. The honeycomb structure design makes it low in density and light in weight, but with excellent compressive and impact resistance, reducing its production cost while ensuring its compressive resistance effect, thereby reducing the probability of the cable protection pipe being deformed under pressure. This not only facilitates the convenient maintenance of the cables inside the cable protection pipe, but also improves the safety of the cable protection pipe in use.

[0032] Furthermore, the corrugated pipe body 31 has a hollow structure, and the width of the ribs of the corrugated pipe body 31 is equal to the spacing between adjacent ribs. The corrugated pipe body 31 has a spiral structure, and the diameter of the vent holes 34 is equal to one-fifth of the width of the corrugated pipe body 31. Moreover, there are no fewer than eight groups of vent holes 34 evenly distributed around the circumference. By setting the hollow structure of the corrugated pipe body 31, its pressure resistance is ensured, while its internal air permeability is improved, thereby further improving its heat dissipation effect.

[0033] Furthermore, the outer diameter of the flange ring 32 is smaller than the distribution diameter of the bellows body 31. Each flange ring 32 has eight tongues 33 evenly distributed around its end circumference. The tongues 33 are T-shaped. The tongues 33 between adjacent outer pipe bodies 3 are connected by tenons. The vertical end of the tongue 33 is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom. The flange rings 32 between adjacent outer pipe bodies 3 are fitted with flexible clamps. Through the tenon joint, the stability and firmness of the installation of adjacent protective pipes are ensured. The flexible clamp, also known as a split expansion joint, is a reliable and easy-to-install pipe connection. At low pressure, the sealing ring achieves a seal through elastic deformation. When the pressure increases, the medium acts on the sealing ring to achieve a self-sealing effect, and a gap is left in the middle to compensate for the displacement and bending of the pipe caused by thermal expansion and contraction. At the same time, it improves the tightness of the tenon joint between adjacent cable protection pipes. The special structure of the vertical end of the tongue 33 improves the ease of tongue insertion and reduces its insertion resistance.

[0034] Working principle: First, the adjacent protective pipes are connected, and then the tenon tongues are inserted between the corresponding tenon grooves 33 to achieve auxiliary connection of the adjacent protective pipes. At the same time, a flexible clamp is wrapped around the outside of the flange ring 32. By continuously tightening the flexible clamp, the tenon joint becomes tighter, which improves the stability and firmness of the connection between adjacent protective pipes.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A corrugated high-temperature resistant cable protection pipe, characterized in that: It includes an inner tube (1), the outer wall of which is wrapped with a honeycomb tube (2); The outer tube (3) is wrapped around the honeycomb tube (2) on the side away from the inner tube (1). The outer wall of the outer tube (3) is spirally wound with a corrugated tube (31), and the corrugated tube (31) is provided with a vent hole (34). Both ends of the outer tube (3) are provided with flange rings (32), and the flange rings (32) are provided with tenons (33) on the side away from each other.

2. The corrugated high-temperature resistant cable protection pipe according to claim 1, characterized in that: The honeycomb tube (2) is uniformly provided with hexagonal slots, and the thickness of the honeycomb tube (2) is twice the thickness of the inner tube (1).

3. The corrugated high-temperature resistant cable protection pipe according to claim 2, characterized in that: The corrugated pipe body (31) has a hollow structure, and the width of the ribs of the corrugated pipe body (31) is equal to the distance between adjacent ribs. The corrugated pipe body (31) has a spiral structure.

4. The corrugated high-temperature resistant cable protection pipe according to claim 3, characterized in that: The diameter of the vent (34) is equal to one-fifth of the width of the corrugated pipe body (31), and the vent (34) is evenly distributed around the circumference of at least eight groups.

5. The corrugated high-temperature resistant cable protection pipe according to claim 1, characterized in that: The outer diameter of the flange ring (32) is smaller than the distribution diameter of the bellows body (31). Each flange ring (32) has eight tenons (33) evenly distributed around its end circumference. The tenons (33) are T-shaped.

6. A corrugated high-temperature resistant cable protection pipe according to claim 5, characterized in that: The tenon (33) between adjacent outer tubes (3) is connected with a tenon tongue. The vertical end of the tenon (33) is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom. The flange ring (32) between adjacent outer tubes (3) is fitted with a flexible clamp.

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