A cable hole sheath with built-in heat dissipation structure
By incorporating a heat dissipation structure and a buffer layer within the cable guide hole sheath, the problem of heat accumulation was solved, the service life of the cable and the structural strength of the sheath were improved, and more efficient heat dissipation and support effects were achieved.
Patent Information
- Application Number
- CN202521954868.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-11
AI Technical Summary
The cable guide hole sheath cannot effectively dissipate the heat generated between the cable and the sheath during use, resulting in cable wear and sheath damage, affecting service life and structural strength.
A heat dissipation structure is arranged circumferentially inside the main body of the sheath, using metal mesh or metal mesh sheets, combined with a buffer layer to improve heat dissipation and structural strength. The main body of the sheath is made of metal or polyurethane material and designed as a flared structure to enhance support capacity.
This enables timely heat dissipation and conduction, improves the service life of the cable and the structural strength of the sheath, and enhances the overall performance of the cable guide hole sheath.
Smart Images

Figure CN224941269U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable guide hole technology, and in particular to a cable guide hole sheath with a built-in heat dissipation structure. Background Technology
[0002] Guide holes, typically made of cast iron or cast steel, are installed on the hull bulwark of a ship to guide cables through the hull and prevent them from damaging the hull. They are widely used in mooring in ships and marine engineering and are essential equipment in these projects. After prolonged use in guide holes, cables are prone to breakage due to wear, leading to accidents. Generally, a guide hole sleeve is installed inside the guide hole to reduce cable wear and prevent breakage.
[0003] During use, the cable guide sheath and the cable are in constant contact and friction. This friction generates heat, and if this heat cannot be dissipated or conducted away in time, it can cause the cable to melt. At the same time, the sheath bears the enormous external force of the cable, making it susceptible to damage. Utility Model Content
[0004] This application addresses the shortcomings of existing manufacturing technologies by providing a cable guide hole sheath with a built-in heat dissipation structure. This structure can dissipate and conduct heat generated by friction between the cable and the sheath in a timely manner, thereby improving the service life of the cable. At the same time, it improves the structural strength of the sheath, giving it higher support strength for the cable, thus comprehensively improving the performance of the cable guide hole sheath.
[0005] The technical solution adopted in this utility model is as follows: A cable guide hole sheath with a built-in heat dissipation structure includes a sheath body, wherein at least one heat dissipation structure is arranged circumferentially around the inner wall of the sheath body, and the heat dissipation structure is a complete annular metal mesh or multiple independent annularly distributed metal mesh sheets.
[0006] Furthermore, a buffer layer is bonded to the outer surface of the sheath body.
[0007] Furthermore, the sheath body is a trumpet-shaped structure that is narrow in the middle and wide at both ends. The sheath body has an inner hole that runs through the front and back at the center. The cross-section of the inner hole of the sheath body is circular, elliptical, or oblong. The inner surface of the sheath body is a smooth transition arc surface.
[0008] Furthermore, the main body of the sheath is made of metal or polyurethane materials.
[0009] Furthermore, the sheath body includes a first sheath part, a second sheath part, and a sheath neck connecting the first sheath part and the second sheath part. The sheath neck is located in the middle position, and the first sheath part and the second sheath part are respectively connected to the front and rear ends of the sheath neck.
[0010] Furthermore, the first sheath portion has a first large opening end and a first small opening end, the aperture size of the first large opening end is larger than the aperture size of the first small opening end, the second sheath portion has a second large opening end and a second small opening end, the aperture size of the second large opening end is larger than the aperture size of the second small opening end, and the front and rear ends of the sheath neck are connected to the first small opening end of the first sheath portion and the second small opening end of the second sheath portion respectively through a connecting structure.
[0011] Furthermore, a smooth transition arc surface is formed on the inner surface between the first large opening end and the first small opening end, and a smooth transition arc surface is formed on the inner surface between the second large opening end and the second small opening end. The inner surface of the sheath neck is a smooth transition arc surface, and the inner surfaces of the first sheath part, the second sheath part, and the sheath neck are connected to form a smooth transition arc surface.
[0012] Furthermore, the heat dissipation structure includes a first annular metal mesh, a neck annular metal mesh, and a second annular metal mesh. The first annular metal mesh is embedded in the wall of the first sheath portion along the circumferential direction, the neck annular metal mesh is embedded in the wall of the neck of the sheath along the circumferential direction, and the second annular metal mesh is embedded in the wall of the second sheath portion along the circumferential direction.
[0013] The beneficial effects of this utility model are as follows: This utility model has a compact and reasonable structure, and is convenient and quick to manufacture. The sheath body can dissipate and conduct heat generated by friction between the cable and the sheath in a timely manner, thereby improving the service life of the cable. At the same time, it improves the structural strength of the sheath body, so that the sheath body has a high support strength for the cable, thus comprehensively improving the performance of the cable guide hole sheath. Attached Figure Description
[0014] Figure 1 This is a half-sectional view of the front view of this utility model.
[0015] Figure 2 This is a three-dimensional half-sectional view of the present invention.
[0016] The components are: 1. First sheath; 2. Second sheath; 3. Neck of sheath; 4. Buffer layer; 5. First annular metal mesh; 6. Neck annular metal mesh; 7. Second annular metal mesh. Detailed Implementation
[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0018] like Figure 1 and Figure 2As shown, a cable guide sleeve with a built-in heat dissipation structure includes a sleeve body, which is a trumpet-shaped structure that is narrow in the middle and wide at both ends. A through-hole is provided in the center of the sleeve body, through which a cable passes. The cross-section of the through-hole is circular, elliptical, or oblong. The inner surface of the sleeve body is a smooth transition arc surface, which is the working end face that contacts the cable. During use, the cable can slide back and forth along the transition arc surface.
[0019] like Figure 1 and Figure 2 As shown, the outer surface of the sheath body is bonded with a buffer layer 4, which is made of elastic material. During assembly, the sheath body is pressed into the cable guide hole through the buffer layer 4. The buffer layer 4 is used to buffer the pressure generated by the mutual compression between the sheath body and the cable guide hole.
[0020] like Figure 1 and Figure 2 As shown, the sheath body can be made of a wear-resistant metal material, such as cast iron or cast steel. Alternatively, the sheath body can be made of wear-resistant polyurethane material.
[0021] like Figure 1 and Figure 2 As shown, at least one ring of heat dissipation structure is arranged circumferentially around the inner wall of the sheath body. During the manufacturing of the sheath body, the heat dissipation structure is embedded within the molding die of the sheath body, and is formed in one injection molding process, making manufacturing convenient.
[0022] During use, friction between the cable and the sheath body generates heat and static electricity. The heat dissipation structure not only facilitates heat dissipation from the sheath body but also enhances its structural strength, making it more wear-resistant and less prone to deformation.
[0023] The heat dissipation structure can be a complete ring-shaped metal mesh or multiple independent ring-shaped metal mesh sheets.
[0024] The heat dissipation structure can be made of copper or aluminum, as copper and aluminum have better heat dissipation performance. The mesh structure of the heat dissipation structure facilitates heat conduction across the entire metal mesh, promoting more even heat dissipation.
[0025] like Figure 1 and Figure 2 As shown, the sheath body includes a first sheath part 1, a second sheath part 2, and a sheath neck 3 connecting the first sheath part 1 and the second sheath part 2. The sheath neck 3 is located in the middle position, and the first sheath part 1 and the second sheath part 2 are respectively connected to the front and rear ends of the sheath neck 3.
[0026] like Figure 1 and Figure 2As shown, the first sheath portion 1 has a first large opening end and a first small opening end. The diameter of the first large opening end is larger than the diameter of the first small opening end, and a smooth transition arc surface is formed between the first large opening end and the first small opening end. The second sheath portion 2 has a second large opening end and a second small opening end. The diameter of the second large opening end is larger than the diameter of the second small opening end, and a smooth transition arc surface is formed between the second large opening end and the second small opening end. The inner surface of the sheath neck 3 is a smooth transition arc surface.
[0027] The front and rear ends of the sheath neck 3 are connected to the first small opening end of the first sheath part 1 and the second small opening end of the second sheath part 2 respectively through a connecting structure. The inner surfaces of the first sheath part 1, the second sheath part 2 and the sheath neck 3 are connected to form a smooth transition arc surface.
[0028] The connecting structure includes multiple first bolt holes on the first sheath 1, multiple second bolt holes on the second sheath 2, and multiple bolt through holes on the sheath neck 3. The multiple first bolt holes, multiple second bolt holes, and multiple bolt through holes are arranged in a one-to-one correspondence. A connecting bolt is provided in each group of first bolt holes, second bolt holes, and bolt through holes. The end of the connecting bolt is connected to a lock nut. The lock nut and the connecting bolt lock the first sheath 1 and the sheath neck 3 of the second sheath 2 together.
[0029] like Figure 1 and Figure 2 As shown, the heat dissipation structure includes a first annular metal mesh 5, a neck annular metal mesh 6, and a second annular metal mesh 7. The first annular metal mesh 5 is embedded in the wall of the first sheath 1 along the circumferential direction, the neck annular metal mesh 6 is embedded in the wall of the neck 3 of the sheath along the circumferential direction, and the second annular metal mesh 7 is embedded in the wall of the second sheath 2 along the circumferential direction.
[0030] The working principle of this invention is as follows: During the assembly of the sheath body and the cable guide hole, the first sheath part, the sheath neck, and the second sheath part are respectively inserted into the cable guide hole from the left and right sides, and then connected and secured by a connecting structure. The outer surface of the sheath body is pressed against the inner surface of the cable guide hole by a buffer layer. Due to mutual compression, the buffer layers form a firm assembly structure on the surface of the cable guide hole, avoiding gaps between the sheath body and the cable guide hole, thus improving sealing and rust prevention. The sheath body of this invention can dissipate and conduct heat generated by friction between the cable and the sheath in a timely manner, improving the service life of the cable; at the same time, it improves the structural strength of the sheath body, giving the sheath higher support strength for the cable, thus comprehensively improving the performance of the cable guide hole sheath.
[0031] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.
Claims
1. A cable guide hole sheath with a built-in heat dissipation structure, comprising a sheath body, characterized in that: The sheath body has at least one ring of heat dissipation structure arranged circumferentially around its inner wall. The heat dissipation structure is a complete annular metal mesh or multiple independent annularly distributed metal mesh sheets.
2. The cable guide hole sheath with built-in heat dissipation structure as described in claim 1, characterized in that: The outer surface of the sheath body is bonded with a buffer layer (4).
3. The cable guide hole sheath with a built-in heat dissipation structure as described in claim 2, characterized in that: The sheath body is a trumpet-shaped structure that is narrow in the middle and wide at both ends. The sheath body has an inner hole that runs through the front and back. The cross-section of the inner hole of the sheath body is circular, elliptical, or oblong. The inner surface of the sheath body is a smooth transition arc surface.
4. The cable guide hole sheath with built-in heat dissipation structure as described in claim 3, characterized in that: The sheath body is made of metal or polyurethane materials.
5. The cable guide hole sheath with a built-in heat dissipation structure as described in claim 4, characterized in that: The sheath body includes a first sheath part (1), a second sheath part (2) and a sheath neck (3) connecting the first sheath part (1) and the second sheath part (2). The sheath neck (3) is located in the middle position, and the first sheath part (1) and the second sheath part (2) are respectively connected to the front and rear ends of the sheath neck (3).
6. The cable guide hole sheath with a built-in heat dissipation structure as described in claim 5, characterized in that: The first sheath part (1) has a first large opening end and a first small opening end. The aperture size of the first large opening end is larger than that of the first small opening end. The second sheath part (2) has a second large opening end and a second small opening end. The aperture size of the second large opening end is larger than that of the second small opening end. The front and rear ends of the sheath neck (3) are connected to the first small opening end of the first sheath part (1) and the second small opening end of the second sheath part (2) respectively through a connecting structure.
7. The cable guide hole sheath with a built-in heat dissipation structure as described in claim 6, characterized in that: The inner surface between the first large opening end and the first small opening end forms a smooth transition arc surface, the inner surface between the second large opening end and the second small opening end forms a smooth transition arc surface, the inner surface of the sheath neck (3) is a smooth transition arc surface, and the inner surfaces of the first sheath part (1), the second sheath part (2) and the sheath neck (3) are connected to form a smooth transition arc surface.
8. The cable guide hole sheath with a built-in heat dissipation structure as described in claim 7, characterized in that: The heat dissipation structure includes a first annular metal mesh (5), a neck annular metal mesh (6), and a second annular metal mesh (7). The first annular metal mesh (5) is embedded in the wall of the first sheath (1) along the circumferential direction. The neck annular metal mesh (6) is embedded in the wall of the neck (3) of the sheath along the circumferential direction. The second annular metal mesh (7) is embedded in the wall of the second sheath (2) along the circumferential direction.
