Wear-resistant trenchless power cable polyethylene protection pipe

Abstract

The utility model discloses a wear-resistant trenchless power cable polyethylene protection tube which comprises a cable protection tube body. The cable protection pipe is characterized in that a wear-resistant layer for improving the wear-resistant strength of the cable protection pipe body is arranged outside the cable protection pipe body; supporting shaft sleeves for supporting the cable protection pipe body and reducing the contact area between the cable protection pipe body and the underground channel are further mounted at the two ends of the cable protection pipe body; and a plurality of supporting bosses are arranged on the supporting shaft sleeve. The wear-resistant layer is arranged on the outer wall of the cable protection pipe body, so that the wear-resistant effect of the cable protection pipe body is improved, and the service life of the cable protection pipe body is prolonged; the supporting shaft sleeves are installed at the two ends of the cable protection pipe body, the supporting bosses are arranged on the supporting shaft sleeves, the supporting bosses make contact with the inner wall of the underground channel, the situation that the outer surface of the cable protection pipe body makes direct contact with the inner wall of the underground channel is avoided, and the contact area between the cable protection pipe body and the underground channel is reduced; friction force during installation of the cable protection pipe body is reduced, and installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of power cable protection pipe technology, specifically to a wear-resistant, trenchless power cable polyethylene protection pipe. Background Technology

[0002] Currently, polyolefin protective pipes are widely used in power pipeline projects. Traditional open-cut construction suffers from high costs, long construction periods, and environmental damage. Trenchless technology has become mainstream due to its high efficiency and environmental friendliness. However, existing cable protective pipes cannot meet the requirements of complex geological environments in terms of wear resistance and tensile strength. During the process of dragging pre-drilled holes, the outer surface is easily worn and damaged, leading to a decrease in the pipe's ring stiffness and tensile strength. These factors hinder the widespread application of the product. Therefore, a wear-resistant, trenchless polyethylene protective pipe for power cables is proposed to improve installation efficiency. Summary of the Invention

[0003] The purpose of this utility model is to solve the above problems by proposing a wear-resistant, trenchless power cable polyethylene protective pipe.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant trenchless power cable polyethylene protective pipe, including a cable protective pipe body; characterized in that the cable protective pipe body is provided with a wear-resistant layer to improve the wear resistance of the cable protective pipe body; both ends of the cable protective pipe body are also equipped with support bushings to support the cable protective pipe body and reduce the contact area between the cable protective pipe body and the underground channel; the support bushings are provided with a plurality of support bosses.

[0005] Preferably, the cable protection pipe is provided with mounting ring grooves at both ends to facilitate the installation of the support bushing.

[0006] Preferably, the support bushing includes an upper bushing and a lower bushing that engages with the upper bushing.

[0007] Preferably, the upper bushing is provided with a mounting boss that is mounted on the lower bushing and a snap-fit ​​boss provided on the mounting boss.

[0008] Preferably, the lower bushing is provided with a mounting groove that matches the mounting boss and a snap-fit ​​groove that matches the snap-fit ​​boss.

[0009] Preferably, the support boss is provided with a soil-guiding buffer surface.

[0010] The beneficial effects of this utility model are as follows: by setting a wear-resistant layer on the outer wall of the cable protection pipe, the hardness and wear resistance of the outer wall of the cable protection pipe are improved, the wear resistance of the pipe material is improved, and the problem of easy wear and damage to the outer wall of the cable protection pipe during construction is solved.

[0011] By installing support bushings at both ends of the cable protection pipe, and setting support bosses on the support bushings, the support bosses are made to contact the inner wall of the underground channel. This avoids the outer surface of the cable protection pipe directly contacting the inner wall of the underground channel, reduces the contact area between the cable protection pipe and the underground channel, reduces the friction during the installation of the cable protection pipe, and improves the installation efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a cross-sectional view of the cable protection pipe body of this utility model.

[0014] Figure 3 This is a schematic diagram of the upper bushing of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the lower bushing of this utility model.

[0016] Legend: 1. Cable protection pipe body; 101. Wear-resistant layer; 102. Mounting ring groove; 2. Support bushing; 201. Support boss; 202. Upper bushing; 203. Lower bushing; 204. Mounting boss; 205. Snap-on boss; 206. Mounting groove; 207. Snap-on groove; 208. Soil guide buffer surface. Detailed Implementation

[0017] The wear-resistant, trenchless power cable polyethylene protective pipe of this utility model will be further described below with reference to the accompanying drawings.

[0018] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0019] See appendix Figure 1-4As shown, the wear-resistant trenchless power cable polyethylene protective pipe in this embodiment includes a cable protection pipe body 1; characterized in that the cable protection pipe body 1 is provided with a wear-resistant layer 101 to improve the wear resistance of the cable protection pipe body 1; both ends of the cable protection pipe body 1 are also equipped with support bushings 2 to support the cable protection pipe body 1 and reduce the contact area between the cable protection pipe body 1 and the underground channel; the support bushings 2 are provided with a plurality of support bosses 201; the support bosses 201 are provided with soil guiding buffer surfaces 208; by providing a wear-resistant layer 101 on the outer wall of the cable protection pipe body 1, the wear resistance of the cable protection pipe body 1 is improved, thereby increasing the service life of the cable protection pipe body 1. Support sleeves 2 are installed at both ends of the cable protection pipe 1. Support protrusions 201 are provided on the support sleeves 2, so that the support protrusions 201 contact the inner wall of the underground channel. This avoids the outer surface of the cable protection pipe 1 directly contacting the inner wall of the underground channel, reduces the contact area between the cable protection pipe 1 and the underground channel, reduces the friction during the installation of the cable protection pipe 1, and improves the installation efficiency. The support protrusions 201 are provided with soil guiding buffer surfaces 208. When the support protrusions 201 contact the soil in the underground channel, the soil moves along the soil guiding buffer surfaces 208 as the cable protection pipe 1 moves, thereby reducing the resistance during the installation of the cable protection pipe 1.

[0020] See appendix Figure 2 As shown, the cable protection pipe body 1 has mounting ring grooves 102 at both ends to facilitate the installation of the support bushing 2; the mounting ring grooves 102 on the cable protection pipe body 1 are used to axially limit the installation of the support bushing 2.

[0021] See appendix Figure 3-4 As shown, the support bushing 2 includes an upper bushing 202 and a lower bushing 203 that is fitted to the upper bushing 202; the upper bushing 202 is provided with a mounting boss 204 that is mounted on the lower bushing 203 and a snap-fit ​​boss 205 provided on the mounting boss 204; the lower bushing 203 is provided with a mounting groove 206 that is adapted to the mounting boss 204 and a snap-fit ​​groove 207 that is adapted to the snap-fit ​​boss 205; by inserting the mounting boss 204 on the upper bushing 202 into the mounting bushing 203 on the lower bushing 203... Inside the groove 206, the inner wall of the mounting groove 206 presses against the snap-fit ​​boss 205 on the mounting boss 204, and continues to push the upper bushing 202, so that the snap-fit ​​boss 205 is inserted into the snap-fit ​​groove 207 of the mounting groove 206 along with the mounting boss 204. The snap-fit ​​boss 205 is not subjected to the pressing force, and is reset and installed in the snap-fit ​​groove 207 by its own elasticity, thus limiting the installation between the upper bushing 202 and the lower bushing 203, thereby facilitating the installation between the upper bushing 202 and the lower bushing 203.

[0022] The installation process of this utility model is as follows: First, align the upper bushing 202 and the lower bushing 203 with the mounting ring groove 102 on the cable protection pipe body 1. Then, insert the mounting boss 204 on the upper bushing 202 into the mounting groove 206 on the lower bushing 203. The inner wall of the mounting groove 206 presses against the snap-fit ​​boss 205 on the mounting boss 204. Continue to push the upper bushing 202 so that the snap-fit ​​boss 205 is inserted into the snap-fit ​​groove 207 of the mounting groove 206 along with the mounting boss 204. The snap-fit ​​boss 205 is not subjected to any pressing force and is reset and installed in the snap-fit ​​groove 207 by its own elasticity. The upper bushing 202 and the lower bushing 203 are then positioned and installed in the mounting ring groove 102 on the cable protection pipe body 1.

[0023] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A wear-resistant trenchless power cable polyethylene protection pipe, comprising a cable protection pipe body (1); characterized in that The cable protection pipe (1) is provided with a wear-resistant layer (101) to improve the wear resistance of the cable protection pipe (1); the two ends of the cable protection pipe (1) are also provided with support bushings (2) to support the cable protection pipe (1) and reduce the contact area between the cable protection pipe (1) and the underground channel; the support bushings (2) are provided with a number of support bosses (201).

2. The abrasion resistant trenchless power cable polyethylene protection pipe according to claim 1, characterized by: The cable protection pipe (1) is provided with mounting ring grooves (102) at both ends to facilitate the installation of the support bushing (2).

3. The abrasion resistant trenchless power cable polyethylene protection pipe according to claim 2, characterized in that: The support bushing (2) includes an upper bushing (202) and a lower bushing (203) that is fitted with the upper bushing (202).

4. The abrasion resistant trenchless power cable polyethylene protection pipe according to claim 3, characterized in that: The upper bushing (202) is provided with a mounting boss (204) that is installed on the lower bushing (203) and a snap-fit ​​boss (205) provided on the mounting boss (204).

5. The abrasion resistant trenchless power cable polyethylene protection pipe according to claim 4, characterized in that: The lower bushing (203) is provided with a mounting groove (206) that matches the mounting boss (204) and a snap-fit ​​groove (207) that matches the snap-fit ​​boss (205).

6. The abrasion resistant trenchless power cable polyethylene protection pipe of claim 1, wherein: The support boss (201) is provided with a soil guiding buffer surface (208).

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