High-strength HDPE cable protection pipe

Abstract

The utility model discloses a high strength HDPE cable protection pipe, relates to the cable protection pipe technical field, and comprises a protection sleeve, the left side of the protection sleeve is sleeved with a connecting cylinder, the right side of the protection sleeve is fixedly provided with a splicing cylinder in a sleeved mode, the right end of the splicing cylinder is uniformly provided with butt joint grooves, and the butt joint grooves are in butt joint with the connecting cylinder. Spring pins are arranged at the positions, located on the inner walls of the butt joint grooves, of the right side of the splicing cylinder, the spring pins are fixedly connected with the inner walls of the butt joint grooves through spring pieces of the spring pins, inserting blocks are evenly distributed and fixedly installed at the left end of the connecting cylinder, and positioning grooves are formed in the sides, away from the protective sleeve, of the surfaces of the inserting blocks; one side, close to the opening of the positioning groove, of the surface of the insertion block is an inclined surface. Compared with an existing common high-strength HDPE cable protection pipe, the high-strength HDPE cable protection pipe has the advantages that the length of the whole protection pipe can be quickly and conveniently spliced and extended according to the protection length of a cable, so that the high-strength HDPE cable protection pipe can be flexibly adapted to protection use of cables with different lengths, and the practicability is greatly improved.

Description

Technical Field

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

[0002] Cable protection pipes are protective conduits with a certain mechanical strength, laid around the outer layer of cables to prevent damage. They are mainly installed where communication cables cross power lines, primarily underground or on the surface, to protect cables from corrosion and damage, and to prevent short circuits caused by power line breaks. Cable protection pipes are commonly used in various environments, including underwater, snowy, saline-alkali environments, and in urban underground power grid installations.

[0003] For example, the application document with application number 202323065066.2 discloses a high-strength cable protection pipe. This utility model, through the setting of auxiliary units and connecting units, transforms the sliding friction between the cable and the protection pipe into rolling friction, which greatly reduces the friction between the cable and the protection pipe, avoids cable installation damage, and improves service life. However, in the process of use, it is difficult to splice and extend the cable according to the actual protection length required by the cable. Even if splicing is possible, its fixing is done by bolts, welding, or casting, which is inconvenient to connect and not flexible and convenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure to propose a high-strength HDPE cable protection pipe. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength HDPE cable protection pipe to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength HDPE cable protection pipe, comprising a protective sleeve, a connecting cylinder sleeved on the left side of the protective sleeve, and a splicing cylinder fixedly installed on the right side of the protective sleeve. The right end of the splicing cylinder has evenly distributed butt grooves. A spring pin is provided on the inner wall of each butt groove on the right side of the splicing cylinder. The spring pin is fixedly connected to the inner wall of the butt groove using its own spring element. Insert blocks are evenly distributed and fixedly installed on the left end of the connecting cylinder. Positioning grooves are provided on the surface of each insert block away from the protective sleeve, and the surface of the insert block near the opening of the positioning groove is set as an inclined surface.

[0007] Preferably, the outer surface of the splicing cylinder is provided with a limiting groove evenly distributed on the left side, and the limiting groove is provided with the same covering and connecting mechanism.

[0008] Preferably, the covering connection mechanism includes a telescopic spring fixedly connected to the left end of the inner surface of the limiting slide groove, and a slider fixedly connected to the right end of the telescopic spring, the slider being located inside the limiting slide groove and sliding in contact with it.

[0009] Preferably, the covering and connecting mechanism further includes a sleeve fixedly installed on the side of the slider away from the protective sleeve, the sleeve covering the outside of the splicing cylinder, and insertion holes evenly distributed on the right side of the inner surface of the sleeve.

[0010] Preferably, thrust springs are evenly distributed and fixedly installed on the left inner wall of the connecting cylinder, and a movable block is fixedly installed on the end of each thrust spring away from the protective sleeve, and the left side of the surface of the movable block is set as an inclined surface.

[0011] Preferably, the outer surface of the protective sleeve is fixedly covered with a wear-resistant and hydrophobic layer, the inner surface of the protective sleeve is fixedly connected with an insulating and flame-retardant layer, and both the splicing cylinder and the connecting cylinder are fixedly connected to the wear-resistant and hydrophobic layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the arrangement of splicing tube, connecting tube, docking groove, spring pin, insert block, and positioning groove, aligns and fits the splicing tube of one protective sleeve with the connecting tube of another protective sleeve, allowing the insert block to be inserted into the docking groove. At this time, the insert block uses its own inclined surface to push the spring pin to extend outward. When the insert block is fully inserted into the docking groove, the spring pin is flush with the positioning groove. Under the action of the spring element in the spring pin, the spring pin is inserted into the positioning groove, thereby locking the splicing tube and connecting tube. It can quickly and conveniently splice and extend the length of the entire protective tube according to the needs of cable protection length, thus flexibly adapting to the protection of cables of different lengths and greatly improving practicality.

[0014] 2. This utility model, through the setting of limiting groove, covering connection mechanism, telescopic spring, slider, sleeve, insertion hole, thrust spring and movable block, can further improve the firmness of splicing of splicing tube and connecting tube. In addition, the sleeve seals and protects the connection joint of splicing tube, connecting tube and two protective sleeves, so as to avoid the joint from breaking and disintegrating due to stress. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front sectional view of the present invention;

[0016] Figure 2 This is a frontal sectional view of the left side portion of the protective sleeve of this utility model;

[0017] Figure 3 This is a frontal sectional view of the right side portion of the protective sleeve of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the protective sleeve splicing of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the protective sleeve splicing of this utility model.

[0020] In the diagram: 1. Protective sleeve; 2. Wear-resistant and hydrophobic layer; 3. Insulating and flame-retardant layer; 4. Splicing tube; 5. Connecting tube; 6. Butt groove; 7. Spring pin; 8. Insert block; 9. Positioning groove; 10. Limiting slide groove; 11. Covering connection mechanism; 1101. Telescopic spring; 1102. Slider; 1103. Sleeve; 1104. Insertion hole; 12. Thrust spring; 13. Movable block. 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] like Figures 1-5 As shown, a high-strength HDPE cable protection pipe includes a protective sleeve 1. A connecting cylinder 5 is fitted on the left side of the protective sleeve 1, and a splicing cylinder 4 is fitted and fixedly installed on the right side of the protective sleeve 1. The right end of the splicing cylinder 4 is provided with evenly distributed butt grooves 6. A spring pin 7 is provided on the inner wall of each butt groove 6 on the right side of the splicing cylinder 4. The spring pin 7 is fixedly connected to the inner wall of the butt groove 6 by its own spring element. Insert blocks 8 are evenly distributed and fixedly installed on the left end of the connecting cylinder 5. The surface of the insert block 8 away from the protective sleeve 1 is provided with a positioning groove 9, and the surface of the insert block 8 near the opening of the positioning groove 9 is set as an inclined surface.

[0023] By adopting the above technical solution, the insert block 8 can use its own inclined surface to push the spring pin 7 to move outward. After the insert block 8 is fully inserted into the docking groove 6, the spring pin 7 is flush with the positioning groove 9. Under the action of the spring in the spring pin 7, the spring pin 7 is inserted into the positioning groove 9, thereby locking the splicing cylinder 4 and the connecting cylinder 5, so that the two protective sleeves 1 can be spliced.

[0024] Furthermore, the left side of the outer surface of the splicing cylinder 4 is evenly provided with limiting grooves 10, and the inside of the limiting grooves 10 is provided with the same covering connection mechanism 11.

[0025] By adopting the above technical solution, the limiting slide 10 restricts the maximum movement position of the structural component of the covering connection mechanism 11.

[0026] Furthermore, the covering connection mechanism 11 includes a telescopic spring 1101 fixedly connected to the left end of the inner surface of the limiting slide groove 10, and a slider 1102 fixedly connected to the right end of the telescopic spring 1101. The slider 1102 is located inside the limiting slide groove 10 and slides in contact with it.

[0027] The covering connection mechanism 11 also includes a slider 1102 with the same sleeve 1103 fixedly installed on the side away from the protective sleeve 1. The sleeve 1103 covers the outside of the splicing cylinder 4, and the inner surface of the sleeve 1103 is evenly provided with insertion holes 1104 on the right side.

[0028] Thrust springs 12 are evenly distributed and fixedly installed on the inner wall of the left side of the connecting cylinder 5. Movable blocks 13 are fixedly installed on the end of the thrust springs 12 away from the protective sleeve 1. The left side of the surface of the movable block 13 is set as an inclined surface.

[0029] By adopting the above technical solution, after the two protective sleeves 1 are spliced, the sleeve 1103 can be pulled to make the slider 1102 slide along the limiting groove 10. The sleeve 1103 moves to the right and will use the inclined surface to push the movable block 13 downward to compress the thrust spring 12. When the sleeve 1103 is pulled to the maximum position, the movable block 13 will be aligned with the insertion hole 1104. Under the action of the thrust spring 12, the movable block 13 will be pushed into the insertion hole 1104, thereby fixing the extended sliding position of the sleeve 1103. By using the sleeve 1103 to connect, the splicing tube 4 and the connecting tube 5 can be further strengthened. In addition, the sleeve 1103 seals and protects the joint of the splicing tube 4, the connecting tube 5 and the two protective sleeves 1, avoiding the situation where the joint is subjected to force and breaks or disintegrates.

[0030] Furthermore, the outer surface of the protective sleeve 1 is fixedly covered with a wear-resistant and hydrophobic layer 2, and the inner surface of the protective sleeve 1 is fixedly connected with an insulating and flame-retardant layer 3. The splicing cylinder 4 and the connecting cylinder 5 are both fixedly connected to the wear-resistant and hydrophobic layer 2.

[0031] By adopting the above technical solutions, the wear-resistant hydrophobic layer 2 and the insulating flame-retardant layer 3 can improve the wear-resistant and waterproof capabilities of the protective sleeve 1, making it less susceptible to moisture and damage, and preventing the protective sleeve 1 from catching fire due to overheating of the internal cable.

[0032] Working Principle: When using this high-strength HDPE cable protection conduit, firstly, the protective sleeve 1 is fitted onto the outside of the cable to be protected. Depending on the required cable length, the splicing sleeve 4 of one protective sleeve 1 is aligned and fitted with the connecting sleeve 5 of another protective sleeve 1, allowing the insert 8 to be inserted into the mating groove 6. At this time, the insert 8 uses its inclined surface to push the spring pin 7 outwards. When the insert 8 is fully inserted into the mating groove 6, the spring pin 7 is flush with the positioning groove 9. Under the action of the spring element in the spring pin 7, the spring pin 7 is inserted into the positioning groove 9, thereby locking the splicing sleeve 4 and the connecting sleeve 5. This allows for quick and convenient splicing and extension of the entire protective conduit according to the cable protection length requirements. After splicing two protective sleeves 1, further... Pulling the sleeve 1103 causes the slider 1102 to slide along the limiting groove 10. The sleeve 1103 moves to the right, which uses the inclined surface to push the movable block 13 downward to compress the thrust spring 12. When the sleeve 1103 is pulled to the maximum position, the movable block 13 will be aligned with the insertion hole 1104. Under the action of the thrust spring 12, the movable block 13 will be pushed into the insertion hole 1104, thereby fixing the extended sliding position of the sleeve 1103. Using the sleeve 1103 for connection can further improve the splicing strength of the splicing tube 4 and the connecting tube 5. In addition, the sleeve 1103 seals and protects the joint of the splicing tube 4, the connecting tube 5 and the two protective sleeves 1. This is the working principle of this high-strength HDPE cable protection pipe.

Claims

1. A high strength HDPE cable protection pipe comprising a protective sleeve (1), characterized in that, The left side of the protective sleeve (1) is sleeved with a connecting barrel (5), and the right side of the protective sleeve (1) is fixedly installed with a splicing barrel (4), the right end of the splicing barrel (4) is uniformly distributed and is provided with a butt joint groove (6), the right side of the splicing barrel (4) is provided with a spring pin (7) on the inner wall of each butt joint groove (6), the spring pin (7) is fixedly connected with the inner wall of the butt joint groove (6) by using the spring part, the left end of the connecting barrel (5) is uniformly distributed and is fixedly installed with an insertion block (8), the surface of the insertion block (8) is provided with a positioning groove (9) away from the side of the protective sleeve (1), and the surface of the insertion block (8) is provided as an inclined surface close to the opening side of the positioning groove (9).

2. A high strength HDPE cable protection pipe according to claim 1, characterized in that, The outer surface of the splicing barrel (4) is uniformly distributed and is provided with a limiting sliding groove (10) on the left side, and the limiting sliding groove (10) is provided with a same cladding connecting mechanism (11) inside.

3. A high strength HDPE cable protection pipe according to claim 2, characterized in that, The cladding connecting mechanism (11) comprises a telescopic spring (1101) fixedly connected to the left end of the limiting sliding groove (10), the right end of the telescopic spring (1101) is fixedly connected with a sliding block (1102), and the sliding block (1102) is located inside the limiting sliding groove (10) and is in close sliding.

4. A high strength HDPE cable protection pipe according to claim 2, characterized in that, The cladding connecting mechanism (11) further comprises a same sleeve (1103) fixedly installed on the side away from the protective sleeve (1) of the sliding block (1102), the sleeve (1103) is cladded with the outer side of the splicing barrel (4), and the inner surface of the sleeve (1103) is uniformly distributed and is provided with an insertion hole (1104) on the right side.

5. A high strength HDPE cable protection pipe according to claim 1, characterized in that, The left inner wall of the connecting barrel (5) is uniformly distributed and is fixedly installed with a thrust spring (12), one end of the thrust spring (12) away from the protective sleeve (1) is fixedly installed with a movable block (13), and the surface of the movable block (13) is provided as an inclined surface on the left side.

6. A high strength HDPE cable protection pipe according to claim 1, characterized in that, The outer surface of the protective sleeve (1) is fixedly cladded and installed with a wear-resistant and water-repellent layer (2), the inner surface of the protective sleeve (1) is fixedly connected with an insulating and flame-retardant layer (3), and the splicing barrel (4) and the connecting barrel (5) are fixedly connected with the wear-resistant and water-repellent layer (2).

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