Bending-resistant cable protection tube
By introducing structures such as a central shaft, partitions, anti-bending plates, and T-slots into the cable protection pipe, multi-level strength enhancement and convenient assembly of the cable protection pipe are achieved, solving the problem of insufficient structural strength in the existing technology, and improving the bending resistance of the cable and the convenience of classified laying and management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU BAONIU PIPE IND CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-15
AI Technical Summary
Existing cable protection pipes are not convenient for modular assembly during use, and the multi-level structural coordination is insufficient, resulting in low structural strength, affecting bending resistance and the convenience of cable classification and laying management.
A structure comprising a protective tube body, a central shaft, a partition, a bending plate, a T-slot, and a support column was designed. The strength of the protective tube is enhanced through a multi-level structure, and the classified laying and management of cables is achieved through modular assembly.
It improves the bending resistance of cable protection pipes and the convenience of cable maintenance, realizes convenient modular assembly and multi-level structural strength enhancement, and facilitates cable classification and laying.
Smart Images

Figure CN224249278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable protection pipe technology, specifically to a bending-resistant cable protection pipe. Background Technology
[0002] Cable protection pipes are metal protective tubes with a certain mechanical strength, laid on the outer layer of cables to prevent damage. They are mainly installed at intersections where communication cables and power lines cross to prevent short circuits caused by power line breaks, which could energize communication cables and steel ropes, thus protecting cables, switches, circuit boards, and even the entire device from burning out. They also provide some isolation against magnetic field interference from power lines. However, existing cable protection pipes are not strong enough to withstand external pressure, making them prone to bending and damage to the cables inside, thus affecting their normal use. To address this issue, a bending-resistant cable protection pipe is proposed.
[0003] As disclosed in the patent announcement CN222508688U, a bending-resistant CPVC cable protection pipe includes a protection pipe body and a support structure. The support structure includes a support ring, connecting plates, connecting seats, movable blocks, a base plate, and vertical plates. The support ring is snap-fitted into the protection pipe body. Two connecting plates are symmetrically fixed to the outer wall of the support ring. Two connecting seats are respectively fixed to the bottom ends of the two connecting plates. Two movable blocks are respectively fixed to the bottom ends of the two connecting seats. Two sets of vertical plates are symmetrically fixed to the top side of the base plate. The movable block is located between the two vertical plates. A spring is arranged between the movable block and the base plate. The slider on the side of the movable block slides in cooperation with the groove on the inner side of the vertical plate.
[0004] Although it achieves the advantages of this utility model in buffering and unloading the impact force from above, thus mitigating the impact on the protective tube body and protecting the protective tube body;
[0005] However, this does not solve the problem that existing cable protection pipes are not conducive to convenient modular assembly and multi-level structural cooperation to increase the structural strength of the protection pipes, nor to improving the bending resistance of the protection pipes and the classification and management of cables, thus affecting the bending resistance of the protection pipes and the convenience of cable maintenance. Utility Model Content
[0006] The purpose of this utility model is to provide a bending-resistant cable protection pipe to solve the problems mentioned in the background art, such as the inconvenience of modular assembly and multi-level structural cooperation to increase the structural strength of the cable protection pipe, which is not conducive to improving the bending resistance of the protection pipe and the classification and management of cables, thus affecting the bending resistance effect of the protection pipe and the convenience of cable maintenance.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a bending-resistant cable protection pipe, comprising a protection pipe body and a central shaft. The central shaft is located at the center of the protection pipe body. Multiple sets of partitions with equal spacing are provided on the outer wall of the central shaft, and the partitions are fixedly connected to the central shaft. A bending-resistant plate is provided at the end of each partition away from the central shaft, and the bending-resistant plate is fixedly connected to the partition. A second T-shaped groove is symmetrically provided on the side wall of each bending-resistant plate. A first T-shaped strip is provided on the side of each bending-resistant plate near the protection pipe body, and the first T-shaped strip is fixedly connected to the bending-resistant plate.
[0008] Preferably, a first T-groove is provided on the inner wall of the protective tube body on one side of the first T-shaped strip, and the first T-groove is fixedly connected to the protective tube body.
[0009] Preferably, the first T-shaped strip extends into the interior of the first T-shaped groove, and the first T-shaped strip is slidably connected to the first T-shaped groove.
[0010] Preferably, the protective tube body has multiple sets of equally spaced support columns inside, and the support columns are slidably connected to the protective tube body.
[0011] Preferably, the anti-bending plate is slidably connected to the protective pipe body, and a connecting arc block is provided between the two sets of anti-bending plates, and a second T-shaped strip is provided at both ends of the connecting arc block.
[0012] Preferably, the second T-shaped strip is fixedly connected to the connecting arc block, and the second T-shaped strip is slidably connected to the second T-shaped groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the cable protection pipe not only realizes the convenient modular assembly of the cable protection pipe and the multi-level structural cooperation to increase the structural strength of the protection pipe, which facilitates the improvement of the bending resistance of the protection pipe and the classification and laying management of cables, but also improves the bending resistance of the protection pipe and the convenience of cable maintenance. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a side view sectional structural diagram of the present invention;
[0016] Figure 3 This is a three-dimensional structural diagram of the support column of this utility model;
[0017] Figure 4 This is a three-dimensional structural diagram of the first T-shaped groove of this utility model;
[0018] Figure 5This is a three-dimensional structural diagram of the anti-bending plate of this utility model;
[0019] Figure 6 This is a three-dimensional structural diagram of the connecting arc block of this utility model.
[0020] In the diagram: 1. Protective pipe body; 2. Central shaft; 3. Partition plate; 4. Bending plate; 5. First T-shaped strip; 6. First T-shaped groove; 7. Support column; 8. Second T-shaped groove; 9. Connecting arc block; 10. Second T-shaped strip. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] Please see Figure 1-6 The present invention provides an embodiment of a cable protection pipe with bending resistance, comprising a protection pipe body 1 and a central shaft 2. The central shaft 2 is provided at the center of the protection pipe body 1. Multiple sets of partitions 3 with equal spacing are provided on the outer wall of the central shaft 2, and the partitions 3 are fixedly connected to the central shaft 2. A bending resistance plate 4 is provided at the end of the partition 3 away from the central shaft 2, and the bending resistance plate 4 is fixedly connected to the partition 3. A second T-shaped groove 8 is symmetrically provided on the side wall of the bending resistance plate 4. A first T-shaped strip 5 is provided on the side of the bending resistance plate 4 close to the protection pipe body 1, and the first T-shaped strip 5 is fixedly connected to the bending resistance plate 4.
[0023] The inner wall of the protective tube body 1 on one side of the first T-shaped strip 5 is provided with a first T-shaped groove 6, and the first T-shaped groove 6 is fixedly connected to the protective tube body 1.
[0024] The first T-shaped strip 5 extends into the interior of the first T-shaped groove 6, and the first T-shaped strip 5 is slidably connected to the first T-shaped groove 6;
[0025] The protective tube body 1 is provided with multiple sets of equally spaced support columns 7 inside, and the support columns 7 are slidably connected to the protective tube body 1.
[0026] The bending plate 4 is slidably connected to the protective pipe body 1, and a connecting arc block 9 is provided between the two sets of bending plates 4, and a second T-shaped strip 10 is provided at both ends of the connecting arc block 9.
[0027] The second T-shaped strip 10 is fixedly connected to the connecting arc block 9, and the second T-shaped strip 10 is slidably connected to the second T-shaped groove 8;
[0028] During manufacturing, the protective pipe body 1 is embedded with support columns 7 to initially enhance its structural strength. Simultaneously, after production, multiple sets of first T-grooves 6 are installed on the inner wall of the protective pipe body 1. In use, the first T-shaped strip 5 is aligned with the first T-groove 6, and the central shaft 2 is moved. The central shaft 2 drives the first T-shaped strip 5 to move inside the first T-groove 6, thus securing the first T-shaped strip 5 inside the first T-groove 6. This allows the anti-bending plate 4 to be installed inside the protective pipe body 1, providing secondary structural strength enhancement. Then, the second T-shaped strip 10 is aligned with the second T-groove 8, and the connecting arc block 9 is moved. The connecting arc block 9 drives the second T-shaped strip 10 to slide inside the second T-groove 8, securing the second T-shaped strip 10 inside the second T-groove 8. This allows the connecting arc block 9 to be installed on both sets of first T-grooves 6. Between the anti-bending plates 4, since both the anti-bending plates 4 and the connecting arc blocks 9 are arc-shaped, they form a circle with the cooperation of the connecting arc blocks 9 and the anti-bending plates 4. Because the circle has strong bearing capacity, it can enhance the structural strength of the protective pipe body 1 in three stages, thereby improving the bending resistance of the cable protective pipe. At the same time, with the cooperation of multiple sets of partitions 3, the internal space of the protective pipe body 1 is divided into multiple cavities, which can place different cables in different cavities, which helps to effectively classify and lay cables, thereby improving the convenience of its later maintenance. Meanwhile, the modular assembly method improves the convenience of its installation, realizes convenient multi-level structural cooperation to increase the structural strength of the protective pipe, facilitates the improvement of the bending resistance of the protective pipe, facilitates the classification and laying management of cables, and improves the bending resistance of the protective pipe and the convenience of cable maintenance.
[0029] Working principle: During manufacturing, the protective pipe body 1 is embedded with support columns 7, which provide primary structural strength enhancement. Simultaneously, after production, multiple sets of first T-slots 6 are installed on the inner wall of the protective pipe body 1. In use, the first T-slot 5 is aligned with the first T-slot 6, and the central shaft 2 is moved. The central shaft 2 drives the first T-slot 5 to move inside the first T-slot 6, thus securing the first T-slot 5 inside the first T-slot 6. This allows the anti-bending plate 4 to be installed inside the protective pipe body 1, providing secondary structural strength enhancement. Then, the second T-slot 10 is aligned with the second T-slot 8, and the connecting arc block 9 is moved. The connecting arc block 9 drives the second T-slot 10 to move inside the second T-slot 8. The groove 8 slides inside to lock the second T-shaped strip 10 inside the second T-shaped groove 8, thereby installing the connecting arc block 9 between the two sets of anti-bending plates 4. Since both the anti-bending plate 4 and the connecting arc block 9 are arc-shaped, they form a circle with the cooperation of the connecting arc block 9 and the anti-bending plate 4. Because the circle has a stronger bearing capacity, the structural strength of the protective pipe body 1 can be enhanced in three stages, thereby improving the bending resistance of the cable protection pipe. At the same time, with the cooperation of multiple sets of partitions 3, the internal space of the protective pipe body 1 is divided into multiple cavities, which can place different cables in different cavities, which helps to effectively classify and lay cables, thereby improving the convenience of later maintenance. Meanwhile, the modular assembly method improves the convenience of installation.
Claims
1. A bend-resistant cable protection pipe, comprising a protection pipe body (1) and a central shaft (2), characterized in that: A central shaft (2) is provided at the center of the protective tube body (1). Multiple sets of partitions (3) with equal spacing are provided on the outer wall of the central shaft (2), and the partitions (3) are fixedly connected to the central shaft (2). A bending plate (4) is provided at the end of each partition (3) away from the central shaft (2), and the bending plate (4) is fixedly connected to the partition (3). A second T-shaped groove (8) is symmetrically provided on the side wall of each bending plate (4). A first T-shaped strip (5) is provided on the side of each bending plate (4) close to the protective tube body (1), and the first T-shaped strip (5) is fixedly connected to the bending plate (4).
2. The bending-resistant cable protection pipe according to claim 1, characterized in that: The inner wall of the protective tube body (1) on one side of the first T-shaped strip (5) is provided with a first T-shaped groove (6), and the first T-shaped groove (6) is fixedly connected to the protective tube body (1).
3. The bending-resistant cable protection pipe according to claim 1, characterized in that: The first T-shaped strip (5) extends into the interior of the first T-shaped groove (6), and the first T-shaped strip (5) is slidably connected to the first T-shaped groove (6).
4. The bend-resistant cable protection pipe according to claim 1, characterized in that: The protective tube body (1) is provided with multiple sets of support columns (7) at equal intervals inside, and the support columns (7) are slidably connected to the protective tube body (1).
5. The bend-resistant cable protection pipe according to claim 1, characterized in that: The bending plate (4) is slidably connected to the protective pipe body (1), and a connecting arc block (9) is provided between the two sets of bending plates (4), and a second T-shaped strip (10) is provided at both ends of the connecting arc block (9).
6. The bending-resistant cable protection pipe according to claim 5, characterized in that: The second T-shaped strip (10) is fixedly connected to the connecting arc block (9), and the second T-shaped strip (10) is slidably connected to the second T-shaped groove (8).