Multifunctional combined special cable sheath structure

Abstract

The utility model relates to cable protection structure field especially a kind of multifunctional combined special cable sheath structure.The sheath structure includes outer layer protection pipe, inner layer support cover, buffer assembly, protection sealing element and locking assembly, each part is connected using modular combination mode, with waterproof, shockproof, wear-resistant, high-temperature-resistant, anti-electromagnetic interference and multiple properties, suitable for cable protection operation in complex environment.The structure improves the adaptability and replacement convenience of sheath, significantly enhances the operation safety and reliability of cable system.

Description

Technical Field

[0001] This utility model relates to the field of cable protection technology, and in particular to a multifunctional combined special cable sheath structure suitable for complex environments. Background Technology

[0002] With the increasing demands on cables from power systems, rail transportation, mining operations, and military facilities, cable sheaths must not only possess basic physical protection capabilities but also exhibit certain environmental adaptability, such as waterproofing, heat resistance, vibration resistance, and electromagnetic interference resistance. Traditional cable sheaths often employ integral rubber or plastic injection-molded structures, requiring complete replacement upon damage. This not only results in high maintenance costs and cumbersome operations but also limits their functionality, making them unsuitable for extreme environments. Therefore, designing a structurally sound, functionally integrated, and easily maintainable modular special cable sheath structure has become a pressing technical challenge in this field. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional combined special cable sheath structure to solve the problems of single function and difficult maintenance of existing sheath structures.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multifunctional combined special cable sheath structure includes an outer sheath, an inner support sleeve, a buffer assembly, a protective seal, and a locking assembly;

[0006] The outer protective tube is made of rigid flame-retardant material, is cylindrical, and has guide grooves on its inner wall;

[0007] The inner support sleeve is embedded inside the outer protective tube and is positioned by a guide groove. The outer surface of the inner support sleeve is equipped with multiple elastic buffer pads.

[0008] The buffer assembly is fixedly installed between the inner support sleeve and the cable, and includes a flexible shock-absorbing pad and a shock-absorbing sliding plate. The shock-absorbing pad is bonded to the inner wall of the inner support sleeve, and the shock-absorbing sliding plate is sandwiched between adjacent shock-absorbing pads and can generate axial buffer sliding relative to the cable to disperse instantaneous impact force.

[0009] The protective sealing element includes rubber rings and sealing rings at both ends, which cover and seal both ends of the cable;

[0010] The locking assembly is fixedly installed at both ends of the outer protective tube and includes a rotating buckle structure and a telescopic limiting collar. The rotating buckle structure achieves axial positioning by cooperating with the locking groove on the protective tube through the limiting protrusion. The telescopic limiting collar is provided with an adjustable elastic locking plate structure, which can adaptively adjust the degree of compression according to the cable diameter and maintain a stable fixed state through buckle positioning. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the outer protective tube.

[0013] Figure 3 A diagram showing the installation structure of the buffer assembly;

[0014] Figure 4 This is a schematic diagram of the component structure;

[0015] Figure 5 This is a schematic diagram showing the fit between the sheath and the cable.

[0016] Figure label:

[0017] 1. Outer protective tube; 2. Guide groove; 3. Inner support sleeve; 4. Elastic buffer pad; 5. Flexible shock-absorbing pad; 6. Shock-absorbing sliding plate; 7. Cable body; 8. Protective sealing ring; 9. Rubber ring; 10. Rotary snap-fit ​​structure; 11. Telescopic limiting collar; 12. Sealing ring; 13. End connecting ring; 14. Auxiliary guide groove; 15. Limiting protrusion. Detailed Implementation

[0018] Example 1: As Figure 1-5 As shown, a multifunctional combined special cable sheath structure includes an outer sheath 1, an inner support sleeve 3, a buffer assembly, a sealing element, and a locking assembly. The outer sheath 1 is made of rigid nylon and is cylindrical. Its inner wall is uniformly provided with guide grooves 2 to limit the axial displacement of the inner support sleeve 3. Through holes are reserved at both ends of the outer sheath 1 for the cable to pass through.

[0019] Example 2: The inner support sleeve 3 is embedded inside the outer protective tube 1 and is limited by the guide groove 2 and the auxiliary guide groove 14. The surface of the support sleeve 3 is coated with multiple elastic buffer pads 4. The buffer pads are made of silicone and are in contact with the cable body 7 to provide soft contact support.

[0020] Example 3: The buffer assembly consists of flexible shock-absorbing pads 5 and damping sliding plates 6. The shock-absorbing pads 5 are semi-annular structures, fitted around the outer periphery of the cable body 7 and fixedly connected to the inner surface of the inner support sleeve 3 by adhesive. Both ends of the pads have limiting feet that can be inserted into limiting holes on the support sleeve 3 for positioning. The damping sliding plates 6 are sheet-like elastic structures, embedded between adjacent shock-absorbing pads 5 and spaced apart along the cable's axial direction. One end of the damping sliding plate 6 is connected to the inner support sleeve 3 via a slot, while the other end is freely suspended, allowing for a small elastic slippage under stress. This slippage structure, used in conjunction with the fixed shock-absorbing pads, not only provides flexible buffering but also disperses instantaneous impact loads transmitted along the axial direction, enhancing the cable's seismic resistance.

[0021] Example 4: Protective sealing elements are provided at both ends of the cable sheath, including an inner rubber ring 9 and an outer sealing ring 12, forming a layered sealing structure. At the same time, a protective sealing ring 8 and a connecting ring 13 are provided at the ends to prevent dust and moisture from entering the interior of the sheath.

[0022] Example 5: The locking assembly consists of a rotating snap-fit ​​structure 10 and a telescopic limiting collar 11, which are fixedly installed at the ends of the outer sheath 1. In use, the operator first rotates the knob of the rotating snap-fit ​​structure 10 clockwise, causing the internal limiting protrusion 15 to gradually embed into the preset limiting hole of the outer sheath 1, achieving initial axial positioning and anti-rotation fixation of the sheath end. Subsequently, the telescopic limiting collar 11 is adjusted, and its internal toothed elastic locking piece automatically tightens and gathers along the radial direction of the cable body 7, completing the covering state. One end of the locking piece is hinged to the limiting collar body, and the other end can slide and position within the locking groove, achieving automatic adaptation to cables of different diameters. When tightened to the target secure state, the limiting protrusion 15 will engage with the corresponding locking hole to complete the final locking. When unlocking, the operator rotates the knob in the opposite direction to disengage the limit protrusion from the lock hole, and at the same time presses the unlock button on the limit collar 11 to release the internal elastic locking piece. The entire sheath assembly can then be detached from the cable surface. The operation is quick and convenient.

[0023] During sheath installation, to accommodate cables of different diameters, the operator first rotates the snap-fit ​​structure 10, causing the internal limiting protrusion 15 to disengage from the locking groove and release the original fixing state. Then, the operator pushes or rotates the telescopic limiting collar 11, allowing it to slide along the sheath's axial direction. Simultaneously, the embedded elastic adjusting ring automatically contracts or expands, ensuring a tight fit between the sheath's inner diameter and the cable body 7. The outer surface of the limiting collar 11 has a graduated guide groove to indicate the adjustment range and assist in positioning. Once the desired tightness is achieved, the snap-fit ​​structure 10 is rotated again, causing the limiting protrusion 15 to engage in the new locking groove, completing the precise tightening of the sheath. This adjustment structure facilitates quick on-site replacement of cables of different specifications, enhancing the versatility of the sheath assembly and operational efficiency.

[0024] The multifunctional combined special cable sheath structure provided by this utility model is compact, versatile, and easy to assemble and disassemble. It is suitable for cable protection in various high-requirement occasions and has broad prospects for promotion and application.

Claims

1. A multifunctional combined special cable sheath structure, characterized in that: Includes an outer protective tube, an inner support sleeve, protective seals, cushioning components, and locking components; The outer protective tube is a cylindrical structure with a guide groove on the inner wall. The inner support sleeve is embedded inside the outer protective tube and is positioned by the guide groove. The outer surface of the inner support sleeve is provided with an elastic buffer pad. The buffer assembly is located between the inner support sleeve and the cable. The buffer assembly includes flexible shock-absorbing pads and shock-absorbing sliding plates. The shock-absorbing pads are fixed to the inner wall of the inner support sleeve, and the shock-absorbing sliding plates are sandwiched between adjacent shock-absorbing pads and maintain sliding contact with the cable. The locking components are located at both ends of the outer protective tube. The locking components include a rotating buckle structure and a telescopic limiting collar. The rotating buckle structure is installed at the end of the protective tube and locks with the protective tube through a limiting protrusion. The telescopic limiting collar is provided with a toothed elastic locking piece, which can adjust its compression state according to the cable diameter to achieve fastening.

2. The sheath structure according to claim 1, characterized in that: The outer protective tube is made of flame-retardant material.

3. The sheath structure according to claim 1, characterized in that: The elastic buffer pad is made of silicone and is arranged around the outer surface of the inner support sleeve.

4. The sheath structure according to claim 1, characterized in that: The flexible shock-absorbing pads and the shock-absorbing sliding plates are stacked together.

5. The sheath structure according to claim 1, characterized in that: The protective sealing element includes a protective sealing ring and an end connecting ring, forming a layered protective structure.

6. The sheath structure according to claim 1, characterized in that: The rotating buckle structure includes a limiting protrusion for connecting with the outer protective tube.

7. The sheath structure according to claim 1, characterized in that: The telescopic limiting collar is an adjustable structure that can be adapted to cables of different diameters.

8. The sheath structure according to claim 1, characterized in that: The outer protective tube is provided with auxiliary guide grooves at both ends.

9. The sheath structure according to claim 1, characterized in that: The sliding plate in the buffer assembly is made of a wear-resistant polymer material.

Images