MPP cable protection pipe with good anti-impact effect

Abstract

This utility model discloses an MPP cable protection tube with good resistance to external impact, including a protection mechanism and a pressure-resistant mechanism. The protection mechanism includes an inner tube, two rings respectively fitted to both ends of the inner tube, and a protective shell connected between the two rings. The pressure-resistant mechanism includes multiple pressure plates connected to the outer wall of the inner tube, an impact plate disposed outside the pressure plates and connected to the inner wall of the protective shell, and a corrugated rod slidably installed between adjacent pressure plates and impact plates. The two ends of the corrugated rod slidably extend into the two rings. In this utility model, when any part of the protective shell is impacted by external force, the impact plate will compress the stress point of the corrugated rod, and then the corrugated rod will be stretched under the limitation of the pressure plates and impact plates, thereby buffering the external force, reducing the damage to the inner tube, effectively protecting the cable inside the inner tube, and ensuring the service life of the product.

Description

Technical Field

[0001] This utility model relates to the field of cable protection pipe technology, specifically to an MPP cable protection pipe with good resistance to external impact. Background Technology

[0002] Cable protection pipes, also known as cable conduits, power cable conduits, cement cable conduits, power ducts, and power cable protection pipes, are mainly installed at intersections where communication cables and power lines cross. They 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 damage. They also provide some isolation against magnetic field interference from power lines. With technological advancements, cement and other non-metallic composite materials are gradually being replaced by fiberglass reinforced plastic (FRP). Most FRP cable protection pipes offer improved corrosion resistance and lifespan underground, a smooth surface, and excellent cleaning performance.

[0003] Application number CN201620913475.4 discloses an ultra-high voltage irregular-shaped power cable protection pipe, belonging to the technical field of power cable protection pipes. The outermost layer of the pipe body is an octagonal pipe wall. The design structure of three layers of pipe walls combined with isolation support ribs forms a network-type three-dimensional support structure, which can significantly improve compressive strength and bending performance. Nine independent cable laying spaces can significantly reduce the difficulty of laying multiple cables simultaneously and improve construction efficiency. The heat insulation gaps on the outside of the cable laying spaces can effectively prevent the internal cables from being affected by external temperatures and delay the aging of the cable insulation rubber. However, in practical use, this network-type three-dimensional support structure is a rigid support, which makes it prone to cracking after being subjected to strong impacts, affecting its service life. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] An MPP cable protection pipe with good resistance to external impact includes a protection mechanism and a pressure-resistant mechanism. The protection mechanism includes an inner tube, two rings respectively sleeved at both ends of the inner tube, and a protective shell connected between the two rings. The pressure-resistant mechanism includes multiple pressure plates connected to the outer wall of the inner tube, an impact plate disposed outside the pressure plates and connected to the inner wall of the protective shell, and a corrugated rod slidably installed between the adjacent pressure plates and the impact plate. The two ends of the corrugated rod slidably extend into the two rings respectively.

[0007] By adopting the above technical solution, when any part of the casing is impacted by external force, the impact plate will squeeze the corrugated rod at the force-bearing position. Then, the corrugated rod is stretched under the limit of the pressure plate and the impact plate, thereby buffering the external force, reducing the damage of the external force to the inner tube, effectively protecting the cable in the inner tube, and ensuring the service life of this product.

[0008] In a preferred embodiment, the present invention can be further configured such that: the outer end of the wave rod is provided with a buffer mechanism, the buffer mechanism including a rubber rod movably sleeved on the outer end of the wave rod and a sleeve sleeve sleeved on the outside of the rubber rod, the outer end of the rubber rod and the outer wall of the sleeve sleeve being fixedly connected to the inner wall of the ring sleeve.

[0009] In a preferred embodiment, the present invention can be further configured such that: both ends of the protective shell are flush with both ends of the inner tube, and the thickness of the protective shell is equal to the thickness of the inner tube.

[0010] In a preferred embodiment, this utility model can be further configured as follows: multiple pressure plates and multiple impact plates are evenly spaced and arranged in a ring, wherein the length of each pressure plate and impact plate is less than the distance between two rings.

[0011] In a preferred embodiment, the present invention can be further configured such that both the pressure plate and the impact plate are made of plastic material.

[0012] In a preferred embodiment, the present invention can be further configured such that the wave rod is made of shape memory metal material.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, when any part of the protective shell is impacted by an external force, the impact plate will squeeze the force-bearing position of the corrugated rod, and then the corrugated rod will be stretched under the limit of the pressure plate and the impact plate, thereby buffering the external force, reducing the damage of the external force to the inner tube, effectively protecting the cable in the inner tube, and ensuring the service life of this product.

[0015] 2. In this utility model, when the wave rod is subjected to impact deformation, both ends of the wave rod will extend outward, and then the rubber rod will block the wave rod, providing secondary buffering against external forces, effectively improving the impact resistance of this product. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the protection mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the anti-compression mechanism of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged view of the structure of part A.

[0021] Figure label:

[0022] 100. Protective mechanism; 110. Inner tube; 120. Ring sleeve; 130. Sheath;

[0023] 200. Compression-resistant mechanism; 210. Pressure plate; 220. Impact plate; 230. Wave-shaped bar;

[0024] 300, Buffer mechanism; 310, Rubber rod; 320, Rod sleeve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an MPP cable protection pipe with good resistance to external impact.

[0028] Example 1:

[0029] Combination Figure 1-5 As shown, the present invention provides an MPP cable protection pipe with good resistance to external impact, including a protection mechanism 100 and a pressure-resistant mechanism 200. The protection mechanism 100 includes an inner tube 110, two ring sleeves 120 respectively sleeved at both ends of the inner tube 110, and a protective shell 130 connected between the two ring sleeves 120.

[0030] The anti-compression mechanism 200 includes a plurality of pressure plates 210 connected to the outer wall of the inner tube 110, an impact plate 220 disposed outside the pressure plates 210 and connected to the inner wall of the protective shell 130, and a wave rod 230 slidably installed between the pressure plates 210 and the impact plate 220, the two ends of the wave rod 230 respectively extending into the interior of two rings 120.

[0031] Furthermore, the two ends of the protective shell 130 are flush with the two ends of the inner tube 110, and the thickness of the protective shell 130 is equal to the thickness of the inner tube 110. This size design, to a certain extent, ensures the aesthetic appearance of the product.

[0032] Furthermore, multiple pressure plates 210 and multiple impact plates 220 are evenly spaced and arranged in a ring. The length of each pressure plate 210 and impact plate 220 is less than the distance between the two rings 120. The layout design of the pressure plates 210 and impact plates 220 allows for the regular arrangement of the wave rods 230, effectively protecting the inner tube 110.

[0033] Furthermore, the pressure plate 210 and the impact plate 220 are both made of plastic material. The pressure plate 210 and the impact plate 220 made of plastic material are lightweight and will not cause a weight load on the product.

[0034] Example 2:

[0035] Combination Figure 3 and Figure 4 As shown, based on Embodiment 1, the outer end of the wave rod 230 is provided with a buffer mechanism 300. The buffer mechanism 300 includes a rubber rod 310 movably sleeved on the outer end of the wave rod 230 and a sleeve 320 sleeved on the outside of the rubber rod 310. The outer end of the rubber rod 310 and the outer wall of the sleeve 320 are both fixedly connected to the inner wall of the ring 120. When the wave rod 230 is subjected to impact deformation, both ends of the wave rod 230 will extend outward, and then the rubber rod 310 will resist the wave rod 230, providing secondary buffering against external forces, effectively improving the impact resistance of this product.

[0036] Example 3:

[0037] Combination Figure 2 and Figure 4 As shown, in the above embodiment, the wave rod 230 is made of shape memory metal material. Even if the wave rod 230 made of shape memory metal material is deformed, it will automatically recover after the loss of external impact, effectively preventing the cable in the inner tube 110 from being continuously impacted.

[0038] The working principle and usage process of this utility model are as follows: When any part of the protective shell 130 is impacted by an external force, the impact plate 220 will squeeze the force-bearing position of the corrugated rod 230. Then, the corrugated rod 230 is stretched under the limit of the pressure plate 210 and the impact plate 220, thereby buffering the external force, reducing the damage of the external force to the inner tube 110, and effectively protecting the cable in the inner tube 110.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An MPP cable protection pipe with good resistance to external impact, characterized in that, include: The protective mechanism (100) includes an inner tube (110), two ring sleeves (120) respectively sleeved at both ends of the inner tube (110), and a protective shell (130) connected between the two ring sleeves (120); The anti-compression mechanism (200) includes a plurality of pressure plates (210) connected to the outer wall of the inner tube (110), an anti-impact plate (220) disposed outside the pressure plates (210) and connected to the inner wall of the protective shell (130), and a wave rod (230) slidably installed between the adjacent pressure plates (210) and the anti-impact plate (220), the two ends of the wave rod (230) respectively slidingly extending into the interior of two rings (120).

2. The MPP cable protection pipe with good resistance to external impact as described in claim 1, characterized in that, The outer end of the wave rod (230) is provided with a buffer mechanism (300). The buffer mechanism (300) includes a rubber rod (310) movably sleeved on the outer end of the wave rod (230) and a sleeve (320) sleeved on the outside of the rubber rod (310). The outer end of the rubber rod (310) and the outer wall of the sleeve (320) are both fixedly connected to the inner wall of the ring sleeve (120).

3. The MPP cable protection pipe with good resistance to external impact as described in claim 1, characterized in that, The two ends of the protective shell (130) are flush with the two ends of the inner tube (110), and the thickness of the protective shell (130) is equal to the thickness of the inner tube (110).

4. The MPP cable protection pipe with good resistance to external impact as described in claim 1, characterized in that, Multiple pressure plates (210) and multiple impact plates (220) are evenly spaced and arranged in a ring. The lengths of the pressure plates (210) and impact plates (220) are all less than the distance between the two rings (120).

5. The MPP cable protection pipe with good resistance to external impact as described in claim 1, characterized in that, The pressure plate (210) and the impact plate (220) are both made of plastic material.

6. The MPP cable protection pipe with good resistance to external impact as described in claim 1, characterized in that, The wave rod (230) is made of shape memory metal material.

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