High-temperature-resistant cable protection sleeve

Abstract

The utility model relates to the technical field of cable accessories, in particular to a high-temperature-resistant cable protection sleeve which comprises an outer pipe, an inner pipe and a supporting part. The multiple supporting parts are connected with the outer circumferential face of the inner pipe and evenly distributed on the inner pipe in the circumferential direction. The outer pipe and the inner pipe are coaxially distributed, the other ends of the multiple supporting parts are connected with the inner circumferential surface of the outer pipe, and a cavity is formed among the multiple supporting parts, the inner pipe and the outer pipe; and plugs are arranged at the two ends of the outer pipe. According to the utility model, the inner tube in the protective sleeve is sleeved on the outer side of the cable body, the inner tube is internally provided with the plurality of raised lines, and the raised lines are of elastic structures, so that the plurality of raised lines are tightly pressed on the peripheral surface of the cable body, and the protective sleeve can be suitable for cable bodies with different outer diameters within a certain range; the outer pipe and the inner pipe are both of an elastic structure, after the protective sleeve is collided, the cavity plays a role in buffering for the first time, the inner protruding strips play a role in buffering for the second time, and collision and damage are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of cable accessories technology, specifically a high-temperature resistant cable protective sleeve. Background Technology

[0002] Cables are a general term encompassing optical fibers, electrical cables, and similar items. They have numerous uses, primarily for control installations, equipment connections, and power transmission, making them a common and indispensable part of daily life. Modern urban construction and renovation projects, industrial park projects, road and bridge construction, and residential community construction all require the underground laying of cables to alleviate pressure on surface space. Protective conduits are always installed around cables during installation for added protection.

[0003] Chinese Patent CN215954893U discloses a high-temperature resistant and flame-retardant cable protective sleeve, including a left protective sleeve, a right protective sleeve, a left clamping block, a right clamping block, and several buffer components. The left and right protective sleeves are connected by a hinge shaft, and a connecting component is fixed at the end of both the left and right protective sleeves away from the hinge shaft. A locking bolt passes through a screw hole opened on the connecting component, and the left and right protective sleeves are enclosed into a ring structure by a nut. Several buffer components are fixed in a buffer cavity between the left protective sleeve and the left clamping block or between the right protective sleeve and the right clamping block. The buffer components include a "U"-shaped spring, a spring, and a buffer pad. The buffer pad is embedded in a positioning groove opened on the inner sidewall of the left and right protective sleeves. One end of the spring is fixed in the arc-shaped groove of the buffer pad, and the other end is fixedly connected to the "U"-shaped spring.

[0004] However, the above technical solution has the following defects: the internal left and right clamping blocks of the above high temperature resistant and flame retardant cable protection sleeve are clamped on the outer circumference of the cable, which limits the size of the cable, reduces the applicability of the protection sleeve, and results in a long cable length. The sleeve requires a large number of bolts to complete the installation, making it inconvenient to install and use. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a high-temperature resistant cable protection sleeve.

[0006] The technical solution of this utility model is: a high-temperature resistant cable protection sleeve, comprising an outer tube, an inner tube, and a support part;

[0007] Multiple support sections are provided, and each support section is connected to the outer circumference of the inner tube and is evenly distributed around the circumference of the inner tube.

[0008] The outer tube and the inner tube are coaxially distributed, and the other end of multiple support parts is connected to the inner circumferential surface of the outer tube. A cavity is formed between the multiple support parts, the inner tube and the outer tube.

[0009] Both ends of the outer tube are equipped with plugs.

[0010] Preferably, it also includes an air intake pipe and a cover;

[0011] The air inlet pipe is connected to the outer pipe, the cover is connected to the air inlet pipe, the air inlet pipe is connected to the interior of any cavity, and the support part is provided with multiple through holes.

[0012] Preferably, the cover is threadedly connected to the outer circumferential surface of the air intake pipe.

[0013] Preferably, the inner circumferential surface of the inner tube is provided with multiple protrusions, which are evenly distributed around the inner circumference of the inner tube, and the protrusions are elastic structures.

[0014] Preferably, the plug includes a cover plate and a protrusion;

[0015] The cover plate connects the ends of the outer tube and the inner tube. Multiple protrusions are provided, and each protrusion is connected to the surface of the cover plate near the outer tube. Each protrusion corresponds to a cavity.

[0016] The projected shape of the protrusion corresponds to the projected shape of the cavity, and the protrusion presses against the inner wall of the cavity.

[0017] Preferably, the cover plate has a ring-shaped projection and is coaxially distributed with the outer tube.

[0018] Preferably, the outer tube, inner tube, and support are all made of high-temperature resistant rubber.

[0019] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0020] 1. In this utility model, the inner tube of the protective sleeve is sleeved on the outside of the cable body. The inner tube is provided with multiple protrusions. The protrusions are elastic structures, so that the multiple protrusions are pressed against the outer circumference of the cable body. At the same time, the protective sleeve can be applied to cable bodies with different outer diameters within a certain range.

[0021] 2. In this utility model, both the outer tube and the inner tube are elastic structures. When the protective sleeve is impacted, the cavity plays a first buffering role, and the internal convex strip plays a second buffering role, effectively reducing the impact and damage.

[0022] 3. In this utility model, gas is filled into the cavity through the air inlet pipe. Nitrogen gas can be used, but is not limited to. After being impacted and damaged, the gas is discharged, which can reduce the oxygen content at the damaged location and play a certain role in flame retardancy. Attached Figure Description

[0023] Figure 1 This is a perspective view of an embodiment of the present invention in use.

[0024] Figure 2 This is a cross-sectional view of a high-temperature resistant cable protection sleeve proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of a high-temperature resistant cable protection sleeve proposed in this utility model.

[0026] Figure 4 This is a cross-sectional view of a high-temperature resistant cable protection sleeve proposed in this utility model.

[0027] Reference numerals: 1. Cover plate; 2. Raised strip; 3. Cable body; 4. Cover; 5. Outer tube; 6. Inner tube; 7. Through hole; 8. Support part; 9. Protrusion; 10. Air inlet pipe; 11. Cavity. Detailed Implementation

[0028] Example 1

[0029] like Figures 1-4 As shown, the present invention proposes a high-temperature resistant cable protection sleeve, which includes an outer tube 5, an inner tube 6, and a support part 8.

[0030] Multiple support parts 8 are provided, and each support part 8 is connected to the outer circumferential surface of the inner tube 6 and is evenly distributed around the inner tube 6.

[0031] Furthermore, the inner circumferential surface of the inner tube 6 is provided with a plurality of protrusions 2, which are evenly distributed on the inner circumference of the inner tube 6, and the protrusions 2 are elastic structures;

[0032] In the installed state, the protrusions 2 are all pressed tightly against the outer circumference of the cable body 3.

[0033] The outer tube 5 and the inner tube 6 are coaxially distributed. The other end of the multiple support parts 8 is connected to the inner circumferential surface of the outer tube 5. The multiple support parts 8, the inner tube 6 and the outer tube 5 form a cavity 11. Both ends of the outer tube 5 are provided with plugs.

[0034] Furthermore, the outer tube 5, inner tube 6, and support part 8 are all made of high-temperature resistant rubber.

[0035] In this utility model, the inner tube 6 of the protective sleeve is sleeved on the outside of the cable body 3. The inner tube 6 has multiple protrusions 2 inside. The protrusions 2 are elastic structures, so that the multiple protrusions 2 are pressed against the outer circumference of the cable body 3. At the same time, the protective sleeve can be applied to cable bodies 3 with different outer diameters within a certain range. Both the outer tube 5 and the inner tube 6 are elastic structures. When the protective sleeve is impacted, the cavity 11 plays a first buffering role, and the inner protrusions 2 play a second buffering role, effectively reducing the impact and damage.

[0036] Example 2

[0037] like Figures 2-3As shown, the high-temperature resistant cable protection sleeve proposed in this utility model, compared with Embodiment 1, also includes an air inlet pipe 10 and a cover 4.

[0038] The air inlet pipe 10 is connected to the outer pipe 5, the cover 4 is connected to the air inlet pipe 10, the air inlet pipe 10 is connected to the interior of any cavity 11, and the support part 8 is provided with multiple through holes 7.

[0039] Furthermore, the cover 4 is threadedly connected to the outer circumferential surface of the air intake pipe 10.

[0040] In this embodiment, gas is filled into the cavity 11 through the air inlet pipe 10. Nitrogen gas can be used, but is not limited to. After being impacted and damaged, the gas is discharged, which can reduce the oxygen content at the damaged location and play a certain role in flame retardancy.

[0041] Example 3

[0042] like Figures 2-3 As shown, the high-temperature resistant cable protection sleeve proposed in this utility model, compared with Embodiment 1, has a plug including a cover plate 1 and a protrusion 9.

[0043] The cover plate 1 connects the ends of the outer tube 5 and the inner tube 6. Multiple protrusions 9 are provided, and each protrusion 9 is connected to the surface of the cover plate 1 near the outer tube 5. The multiple protrusions 9 correspond one-to-one with the cavity 11.

[0044] The projected shape of the protrusion 9 corresponds to the projected shape of the cavity 11, and the protrusion 9 presses against the inner wall of the cavity 11.

[0045] Furthermore, the projected shape of the cover plate 1 is annular, and the cover plate 1 and the outer tube 5 are coaxially distributed.

[0046] In this embodiment, the plug seals the cavity 11 inside the protective sleeve, allowing gas to be filled inside the cavity 11. The protrusion 9 is embedded inside the cavity 11, making the sealing performance stronger.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A high temperature resistant cable protection sleeve, characterized in that, The device comprises an outer tube (5), an inner tube (6) and a support part (8); The support part (8) is provided with a plurality of support parts (8) which are connected to the outer circumferential surface of the inner tube (6) and are evenly distributed on the inner tube (6); The outer tube (5) and the inner tube (6) are coaxially distributed, the other end of the plurality of support parts (8) is connected to the inner circumferential surface of the outer tube (5), and the plurality of support parts (8), the inner tube (6) and the outer tube (5) form a cavity (11); Both ends of the outer tube (5) are provided with plugs.

2. A high temperature resistant cable protection sleeve according to claim 1, characterized in that, It also comprises an air inlet pipe (10) and a cover (4); The air inlet pipe (10) is connected to the outer tube (5), the cover (4) is connected to the air inlet pipe (10), the air inlet pipe (10) is in communication with the inside of any cavity (11), and the support part (8) is provided with a plurality of through holes (7).

3. A high temperature resistant cable protection sleeve according to claim 2, characterized in that, The cover (4) is threadedly connected to the outer circumferential surface of the air inlet pipe (10).

4. A high temperature resistant cable protection sleeve according to claim 1, characterized in that, The inner circumferential surface of the inner tube (6) is provided with a plurality of protrusions (2), the plurality of protrusions (2) are evenly distributed on the inner circumferential surface of the inner tube (6), and the protrusions (2) are of elastic structure.

5. A high temperature resistant cable protection sleeve as claimed in claim 1, wherein, The plug comprises a cover plate (1) and a protrusion (9); The cover plate (1) is connected to the end of the outer tube (5) and the inner tube (6), the protrusion (9) is provided with a plurality of protrusions (9) which are connected to the surface of the cover plate (1) close to the outer tube (5), and the plurality of protrusions (9) correspond to the cavities (11) one by one; The projection shape of the protrusion (9) corresponds to the projection shape of the cavity (11), and the protrusion (9) presses the inner wall of the cavity (11).

6. A high temperature resistant cable protection sleeve according to claim 5, characterized in that The projection shape of the cover plate (1) is annular, and the cover plate (1) is coaxially distributed with the outer tube (5).

7. A high temperature resistant cable protection sleeve as claimed in claim 1, wherein, The outer tube (5), the inner tube (6) and the support part (8) are all made of high-temperature-resistant rubber material.

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