PE cable protection pipe structure
By introducing a support sleeve, limiting plate, and abutment structure into the PE cable protection pipe, the problem of weak compressive strength is solved, achieving improved compressive strength, reduced cost, and maintained flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU YITONG PLASTIC IND CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-21
AI Technical Summary
PE cable protection pipes have weak compressive strength. Increasing the pipe wall thickness will lead to a decrease in flexibility. Concrete encapsulation is complicated to construct, and metal reinforcement is costly and affects flexibility.
The structure adopts a support sleeve, limiting plate and abutment. The support sleeve is made of PVC material, and the limiting plate and abutment are made of HDPE material. The pressure is distributed by the equally spaced support sleeves, and a suitable elastic buffer is provided. The support sleeve and the main body of the cable protection pipe are fixed by the limiting plate and abutment, which increases the pressure resistance without affecting the flexibility.
It improves the compressive strength of PE cable protection pipes, extends their service life, reduces production costs, avoids structural damage caused by thermal expansion and contraction, and maintains flexibility and ease of construction.
Smart Images
Figure CN224153897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PE cable protection pipe technology, specifically a PE cable protection pipe structure. Background Technology
[0002] Cable protection pipes are pipes with a certain mechanical strength that are laid on the outer layer of cables to prevent them from being damaged. They are usually made of materials such as metal, PE, MPP, and PVC. PE cable protection pipes have advantages such as good flexibility, corrosion resistance, low coefficient of friction, easy wire pulling, and lower cost than metal cable protection pipes.
[0003] The biggest drawback of PE cable protection pipes is their weak compressive strength. If the pipe wall thickness is increased, the flexibility will decrease. If it is encased in concrete, the flexibility will be completely lost, and the construction will be very complicated. If metal reinforcement is used, the cost will be high, and the metal will require anti-corrosion treatment, which will further increase the cost and also affect the flexibility. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a PE cable protection pipe structure to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a PE cable protection pipe structure, comprising a cable protection pipe body, a suitable fitting is sleeved on the outside of the cable protection pipe body, and a support sleeve is sleeved on the outer ring of the suitable fitting, and four weight reduction holes are respectively opened on both sides of the outer surface of the support sleeve; a limiting piece is connected to the top of the cable protection pipe body, and a stop piece is connected to the back of the limiting piece.
[0006] By adopting the above technical solution, the compressive strength of the support sleeve is much higher than that of the main body of the cable protection pipe. By distributing multiple support sleeves at equal intervals, the pressure on the main body of the cable protection pipe can be shared, thereby extending the service life of the structure without affecting the flexibility of the main body of the cable protection pipe, which can still be bent. In addition, the weight-reducing holes reduce the amount of raw materials used and lower the production cost of the support structure. The limit plate is fixed to the surface of the main body of the cable protection pipe and the abutment plate holds the support sleeve, thereby preventing the support sleeve from shifting and falling off. The matching set has good elasticity and can buffer and deform when the main body of the cable protection pipe and the support sleeve deform due to thermal expansion and contraction, avoiding structural damage caused by the difference in thermal expansion and contraction coefficients between the main body of the cable protection pipe and the support sleeve.
[0007] Furthermore, the main body of the cable protection pipe is made of HDPE material.
[0008] By adopting the above technical solutions, HDPE cable protection pipes have advantages such as good flexibility, corrosion resistance, low coefficient of friction for easy wire threading, and lower cost than metal cable protection pipes.
[0009] Furthermore, the support sleeve is made of PVC material, and the four weight-reducing holes are distributed in a ring array.
[0010] By adopting the above technical solution, the support sleeve is processed by extrusion molding and cutting, and the weight reduction hole is formed at the same time. The support sleeve is made of PVC material and can be extruded. With the weight reduction hole, the amount of PVC used is reduced, thereby reducing the production cost of the support structure.
[0011] Furthermore, the adapter is made of TPU material and is fixedly connected to the support sleeve by polyurethane adhesive.
[0012] By adopting the above technical solution, the appropriate equipment has good elasticity and can buffer and deform when the main body of the cable protection pipe and the support sleeve deform due to thermal expansion and contraction, thus avoiding structural damage caused by the difference in thermal expansion and contraction coefficients between the main body of the cable protection pipe and the support sleeve.
[0013] Furthermore, both the limiting piece and the abutment are made of HDPE material, and the limiting piece and the abutment are processed by integral molding.
[0014] By adopting the above technical solution, both the limiting plate and the abutment plate are made of HDPE material, and the main body of the cable protection pipe is also made of HDPE material. After the two are hot-melted and pressure-bonded together, they can achieve good fixation.
[0015] Furthermore, the limiting piece is fixedly connected to the main body of the cable protection pipe by heat fusion, and the abutment abuts against the support sleeve.
[0016] By adopting the above technical solution, a local area of the cable protection pipe body is heated by an arc-shaped electric heater, and the limiting plate is also heated, so that the cable protection pipe body and the bottom of the limiting plate are partially heat-melted. Then, the limiting plate is attached to the heat-melted area of the outer ring of the cable protection pipe body, and pressure is applied by an arc-shaped clamp to make the limiting plate and the molecular chain of the cable protection pipe body fuse to form a permanent fixation.
[0017] Furthermore, there are eight limiting pieces and eight abutments, and the eight limiting pieces and abutments are arranged in a double-ring array.
[0018] By adopting the above technical solution, and by increasing the number of limiting plates and abutment plates, the support area of the support sleeve is increased to distribute the pressure and increase the structural stability.
[0019] Furthermore, the support sleeve, weight reduction hole, adapter, limiting piece and abutment are provided in multiple sets, and the multiple sets of support sleeve, weight reduction hole, adapter, limiting piece and abutment are distributed at equal intervals.
[0020] By adopting the above technical solution, the pressure on the main body of the cable protection pipe can be distributed by multiple support sleeves that are evenly distributed, thereby extending the service life of the structure, and without affecting the flexibility of the main body of the cable protection pipe, which can still be bent.
[0021] Furthermore, fixing holes are provided on both sides of the top of the support sleeve.
[0022] By adopting the above technical solution, workers can drive bolts between the ground or building and the fixing hole to increase the stability of the support sleeve, prevent the support sleeve and the main body of the cable protection pipe from shifting, and play the role of pipe support.
[0023] In summary, the present invention has the following main advantages:
[0024] This invention, through the design of a support sleeve, weight-reducing holes, an adapter, a limiting piece, and a stop piece, achieves a PVC support sleeve with a compressive strength far exceeding that of the cable protection pipe body. Multiple equally spaced support sleeves distribute the pressure on the cable protection pipe body, extending the structure's service life without affecting the flexibility of the cable protection pipe body, which remains bendable. Furthermore, the PVC support sleeve can be extruded, and the weight-reducing holes reduce PVC usage, lowering production costs. The limiting piece is fixed to the surface of the cable protection pipe body, and the stop piece holds the support sleeve in place, preventing displacement and detachment. The adapter has good elasticity, buffering and deforming when the cable protection pipe body and support sleeve deform due to thermal expansion and contraction, preventing structural damage caused by differences in thermal expansion and contraction coefficients between the two. This invention conveniently increases the compressive strength of the cable protection pipe, is cost-effective and easy to process, and does not affect flexibility. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the main structure of the cable protection pipe of this utility model;
[0027] Figure 3 This is a side sectional view of the support sleeve structure of this utility model;
[0028] Figure 4 This is a schematic diagram of the support sleeve structure of this utility model.
[0029] In the diagram: 1. Main body of cable protection pipe; 2. Support sleeve; 3. Fixing hole; 4. Weight reduction hole; 5. Adaptive fitting; 6. Limiting plate; 7. Abutment plate. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] The embodiments of this utility model will be described below based on its overall structure.
[0032] Example 1:
[0033] A PE cable protection pipe structure, such as Figures 1-4 As shown, the cable protection pipe includes a main body 1 made of HDPE material. A matching sleeve 5, made of TPU material, is fitted around the main body 1. A support sleeve 2, made of PVC material, is fitted around the outer edge of the matching sleeve 5. The matching sleeve 5 is fixedly connected to the support sleeve 2 by polyurethane adhesive. The support sleeve 2 is made of PVC material, and four weight-reducing holes 4 are respectively opened on both sides of its outer surface, arranged in a ring array. During construction, assembly, and use, the compressive strength of the PVC support sleeve 2 is much higher than that of the main body 1. By distributing multiple support sleeves 2 at equal intervals, the pressure on the main body 1 can be shared, thereby extending the service life of the structure without affecting the flexibility of the main body, which can still be bent. Simultaneously, the matching sleeve 5 has good elasticity, which can buffer and deform when the main body 1 and support sleeve 2 deform due to thermal expansion and contraction, avoiding structural damage caused by the difference in thermal expansion and contraction coefficients between the main body 1 and support sleeve 2.
[0034] See Figures 1-3In the above embodiment, a limiting piece 6 is connected to the top of the cable protection pipe body 1, and a backing piece 7 is connected to the back of the limiting piece 6. Both the limiting piece 6 and the backing piece 7 are made of HDPE material and are integrally formed. The limiting piece 6 is fixedly connected to the cable protection pipe body 1 by hot-melt. The backing piece 7 abuts against the support sleeve 2. There are eight limiting pieces 6 and eight backing pieces 7, and the eight limiting pieces 6 and eight backing pieces 7 are arranged in a double-ring array. The support sleeve 2, the weight reduction hole 4, the adapter 5, the limiting piece 6 and the backing piece 7 are all provided in multiple sets. The positioning plates 6 and the abutment plates 7 are equidistantly distributed. The local area of the cable protection pipe body 1 is heated by the arc-shaped electric heater, which also heats the positioning plates 6, causing the cable protection pipe body 1 and the bottom of the positioning plates 6 to be partially heat-melted. Then, the positioning plates 6 are attached to the heat-melted area of the outer ring of the cable protection pipe body 1, and pressure is applied by the arc-shaped clamp to make the positioning plates 6 and the molecular chains of the cable protection pipe body 1 fuse to form a permanent fixation. The positioning plates 6 abut against the support sleeve 2 through the abutment plates 7 to prevent the support sleeve 2 from shifting. The setting of the positioning plates 6 leaves a certain distance between the heat-melted area of the cable protection pipe body 1 and the matching 5 to prevent the matching 5 from being affected by high temperature.
[0035] Example 2:
[0036] Based on the above embodiment one, the following settings are now adopted to increase stability.
[0037] See Figures 1-4 In the above embodiment, fixing holes 3 are provided on both sides of the top of the support sleeve 2. Workers can drive bolts between the ground or building and the fixing holes 3 to increase the stability of the support sleeve 2, prevent the support sleeve 2 and the cable protection pipe body 1 from shifting, and play the role of pipe support.
[0038] The implementation principle of this utility model is as follows: First, the support sleeve 2 is processed by extrusion molding and cutting, and the weight-reducing hole 4 is formed simultaneously. The support sleeve is made of PVC material and can be extruded. With the weight-reducing hole 4, the amount of PVC used is reduced, thus reducing the production cost of the support structure. Then, the fixing hole 3 can be processed by drilling. After that, the inner ring of the support sleeve 2 and the outer ring of the adapter 5 are roughened. After applying polyurethane adhesive, the adapter 5 can be fixed to the inner ring of the support sleeve 2. When assembling the support sleeve 2, the support sleeve 2 is first directly put on the outside of the cable protection pipe body 1. Then, a metal rod is inserted through the inside of the cable protection pipe body as a support to prevent the cable protection pipe body from turning inward during subsequent heat fusion. During the collapse, a localized area of the cable protection pipe body 1 and the limiting plate 6 are heated by an arc-shaped electric heater, causing localized heat melting of the cable protection pipe body 1 and the bottom of the limiting plate 6. The limiting plate 6 is then attached to the heat-melted area of the outer ring of the cable protection pipe body 1, and pressure is applied using an arc-shaped clamp to fuse the limiting plate 6 with the molecular chains of the cable protection pipe body 1, forming a permanent fixation. The limiting plate 6 abuts against the support sleeve 2 via the abutment 7, preventing displacement of the support sleeve 2. The setting of the limiting plate 6 ensures a certain distance between the heat-melted area of the cable protection pipe body 1 and the matching 5, preventing the matching 5 from being affected by high temperatures. Finally, the metal rod supporting the inner ring of the cable protection pipe body 1 is extracted to complete the processing.
[0039] During construction, assembly, and use, the PVC support sleeve 2 has a compressive strength much higher than that of the cable protection pipe body 1. By distributing multiple support sleeves 2 at equal intervals, the pressure on the cable protection pipe body 1 can be shared, thereby extending the service life of the structure. This does not affect the flexibility of the cable protection pipe body, which can still be bent. At the same time, the matching sleeve 5 has good elasticity, which can buffer and deform when the cable protection pipe body 1 and the support sleeve 2 deform due to thermal expansion and contraction, avoiding structural damage caused by the difference in thermal expansion and contraction coefficients between the cable protection pipe body 1 and the support sleeve 2. In addition, workers can drive bolts between the ground or building and the fixing hole 3 to increase the stability of the support sleeve 2, prevent the support sleeve 2 and the cable protection pipe body 1 from shifting, and act as a pipe support.
[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A PE cable protection pipe structure comprising a cable protection pipe body (1), characterized in that: The cable protection pipe body (1) is fitted with a matching sleeve (5) on the outside, and a support sleeve (2) is fitted around the outer ring of the matching sleeve (5). Four weight-reducing holes (4) are opened on both sides of the outer surface of the support sleeve (2). A limiting piece (6) is connected to the top of the cable protection pipe body (1), and a backing piece (7) is connected to the back of the limiting piece (6).
2. A PE cable protection tube structure according to claim 1, characterized in that: The main body (1) of the cable protection pipe is made of HDPE material.
3. The PE cable protection tube structure of claim 1, wherein: The support sleeve (2) is made of PVC material, and the four weight-reducing holes (4) are distributed in a ring array.
4. A PE cable protection tube structure according to claim 3, characterised in that: The adapter (5) is made of TPU material and is fixedly connected to the support sleeve (2) by polyurethane adhesive.
5. A PE cable protection tube structure according to claim 4, characterised in that: The limiting piece (6) and the abutment piece (7) are both made of HDPE material, and the limiting piece (6) and the abutment piece (7) are processed by integral molding.
6. A PE cable protection tube structure according to claim 5, characterised in that: The limiting piece (6) is fixedly connected to the cable protection pipe body (1) by heat fusion, and the abutment piece (7) abuts against the support sleeve (2).
7. A PE cable protection tube structure according to claim 6, characterised in that: There are eight of each of the limiting piece (6) and the abutment piece (7), and the eight limiting pieces (6) and the abutment piece (7) are arranged in a double ring array.
8. A PE cable protection tube structure according to claim 7, characterised in that: The support sleeve (2), weight reduction hole (4), fitting (5), limiting piece (6) and abutment (7) are provided in multiple sets, and the multiple sets of support sleeve (2), weight reduction hole (4), fitting (5), limiting piece (6) and abutment (7) are distributed at equal intervals.
9. The PE cable protection tube structure of claim 1, wherein: Fixing holes (3) are provided on both sides of the top of the support sleeve (2).