Cable sheath tube connecting structure

The innovative design of the cable sheath connection structure solves the problem of complex hot-melt butt welding of cable sheaths, enabling rapid connection and disassembly, improving sealing and laying stability, and enhancing waterproof performance.

CN223771720UActive Publication Date: 2026-01-06TONGCHENG LINGZHI PIPE IND CO LTD
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Patent Information

Application Number
CN202520127634.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-01-06
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

In the existing cable conduit installation process, the hot-melt butt welding method is cumbersome to operate and makes it difficult to achieve quick connection and disassembly.

Method used

The cable sheath connection structure includes components such as connecting pipe, sealing sleeve, positioning ring, reinforcing ring, protective shell, annular rib and tightening strap. The design of the shaft, ratchet and torsion spring enables quick connection and disassembly, and the combination of pipe support frame and locking column improves the laying stability.

Benefits of technology

It enables rapid connection and disassembly of cable sheaths, improves sealing and laying stability, avoids the hassle of hot-melt butt welding, and enhances waterproof performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric power sheath pipes, in particular to a cable sheath pipe connecting structure, which comprises a connecting pipe and two ends which are sleeved between two cable sheath pipes and are fixedly connected to the connecting pipe. According to the take-up device, the rotating shaft and the take-up wheel can be driven to rotate through the rotating handle during installation, so that the take-up wheel can take up the tightening belt gradually, one end of the tightening belt is connected with the winding seat in a winding mode, the ratchet wheel can be driven to rotate through the rotating shaft during rotation, and the clamping tooth block can be rapidly reset through the torsion spring; the ratchet-gear wheel can be conveniently engaged and clamped by the clamping tooth block, so that the winding wheel can be prevented from rotating reversely during reinforcement, and the tightening belt can tighten and constrain the annular rib, so that the annular rib can be embedded into the inner groove to press and mount the sealing sleeve, and two cable sleeves can be conveniently and quickly connected. Therefore, hot melting butt joint is not needed, the sealing performance between the cable sleeves can be improved through the sealing sleeve and the connecting pipe, and water in soil is prevented from entering the sleeves.
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Description

Technical Field

[0001] This utility model relates to the field of power sheathing technology, specifically to a cable sheathing connection structure. Background Technology

[0002] Cable conduits are wrapped around the outside of cables to secure and protect the internal conductors. Sheaths are used for wiring for power transmission, telecommunications, and other applications. Various types are available to handle different voltages and setups. These include heavy-duty sheaths for high-voltage power lines and lightweight products for handling telephone lines within homes and other structures. If there are multiple wires in the cable, one function of the sheath is to help bind the conductors together. The internal cavity can also be filled with lubricant or insulation to protect the conductors. Rain, snow, and other environmental hazards cannot penetrate cables with full sheaths, thus reducing the risk of short circuits and other problems. Cable conduits also protect pedestrians and workers by limiting the chance of direct contact with live cables. Sheaths may include one or more layers of insulation and weatherproofing. During the installation of power conduits, they are generally installed in pre-buried trenches using conduit supports. Due to different construction requirements, it is sometimes necessary to butt-joint two power conduits. Current methods use thermofusion for butt joint installation, which requires cleaning and melting the butt joint area before joining, making the process cumbersome. Utility Model Content

[0003] The purpose of this utility model is to provide a cable sheath connection structure to solve the problems mentioned in the background art.

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

[0005] The cable sheath connection structure includes:

[0006] Two cable sleeves are provided, which can protect the cable and conductor;

[0007] A connecting pipe, which is fitted between two cable sleeves;

[0008] There are two positioning rings, which are fixedly connected to both ends of the connecting pipe;

[0009] Two sealing sleeves are provided and are fitted onto the outside of the cable sleeve. The sealing sleeves are fixedly connected to the side wall of the positioning ring.

[0010] Two reinforcing rings are provided, which are fitted onto the outside of the sealing sleeve and fixedly connected to the side wall of the positioning ring;

[0011] The protective shell is fixedly connected to the outer wall of the positioning ring;

[0012] An annular rib is fixedly installed in the reinforcing ring, and the annular rib is made of rubber.

[0013] The connecting seat is fixedly connected to the outer wall of the reinforcing ring;

[0014] The tightening belt is wound around the connecting seat, and one end is fixed to the connecting seat.

[0015] Furthermore, a positioning post is fixedly connected to the side wall of the positioning ring, a rotating shaft is rotatably connected to the end of the positioning post, a winding wheel is fixedly sleeved on the outer wall of the rotating shaft, the winding wheel is fixedly connected to the end of the tightening belt, and a rotating handle is fixedly connected to the end of the rotating shaft.

[0016] Furthermore, a ratchet gear is fixedly connected to the end of the rotating shaft, and a snap-fit ​​tooth block is engaged with the ratchet gear. A fixing post that is fixedly connected to the outer wall of the positioning ring is rotatably connected to one side of the snap-fit ​​tooth block.

[0017] Furthermore, a torsion spring is fixedly provided at the connection between the snap-fit ​​tooth block and the fixed post.

[0018] Furthermore, a limiting post is slidably sleeved in the fixed post, and an abutment plate that abuts against the side wall of the locking tooth block is fixedly connected to the end of the limiting post. An adjusting screw that is rotatably connected to the fixed post is screwed into the limiting post.

[0019] Furthermore, the surface of the sealing sleeve is provided with an inner groove that is embedded in the annular ridge.

[0020] Furthermore, a support frame is fixedly sleeved at the center of the connecting pipe, and four limiting grooves are circumferentially and equidistantly opened on the support frame. A double-headed T-shaped plate is provided between two adjacent support frames and is slidably embedded in the limiting groove. Positioning holes are opened at both ends of the double-headed T-shaped plate, and a locking pin is rotatably connected to the support frame and screwed into the positioning hole.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The opposite ends of the two cable sleeves can be inserted into the connecting pipe. The sealing sleeves connected to both ends of the connecting pipe can seal the connecting pipe and the cable sleeves. During installation, the rotating handle drives the rotating shaft and the winding wheel to rotate, allowing the winding wheel to gradually wind up the tightening tape. Since one end of the tightening tape is wrapped around the coupling seat, the rotating shaft drives the ratchet to rotate during rotation. The torsion spring can quickly reset the locking teeth, making it easy for the locking teeth to engage with the ratchet. Therefore, it can prevent the winding wheel from rotating in the opposite direction during reinforcement. The tightening tape can tighten and bind the annular ribs, making... The annular ribs can be embedded into the inner groove to press and install the sealing sleeve, thus facilitating the quick connection of two cable sleeves without the need for heat fusion. The sealing sleeve and connecting pipe can improve the sealing between the cable sleeves and prevent water from the soil from entering the sleeves. When the connecting pipe is disassembled, the adjusting screw can be rotated to move the limiting post and the abutment plate, no longer limiting the locking teeth. This allows the winding wheel to quickly reverse and release the tightening belt, thereby loosening the tightening of the sealing sleeve. This allows for quick disassembly of the connection structure between the two cable sleeves.

[0023] 2. By fixing a support frame on the outer wall of each connecting pipe, in order to keep multiple cable sheaths arranged in an orderly manner and with a certain spacing when they are laid, a double-headed T-shaped plate can be slidably inserted into the limiting groove, and then the locking column can be rotated and inserted into the positioning hole to position the double-headed T-shaped plate. This allows for splicing and supporting according to the specific number of cable sheaths, thus improving the laying stability of the cable sheaths. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the cable sleeve and connecting pipe in this utility model;

[0026] Figure 3 This is a schematic diagram of the sealing sleeve tightening structure in this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the protective shell in this utility model;

[0028] Figure 5 This is a schematic diagram of the external structure of the sealing sleeve in this utility model;

[0029] Figure 6 This is a schematic diagram of the support frame connection structure in this utility model.

[0030] In the diagram: 101, cable sleeve; 102, connecting pipe; 103, positioning ring; 104, sealing sleeve; 105, reinforcing ring; 106, protective shell; 107, connecting seat; 108, tightening band; 109, annular rib; 110, inner groove; 201, positioning post; 202, rotating shaft; 203, winding wheel; 204, handle; 205, ratchet; 206, locking tooth block; 207, fixing post; 208, torsion spring; 209, abutment plate; 210, limiting post; 211, adjusting screw; 301, pipe support frame; 302, limiting groove; 303, double-headed T-plate; 304, positioning hole; 305, locking post. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 In this embodiment of the utility model, the cable sheath connection structure includes: a cable sheath 101, a connecting pipe 102, a positioning ring 103, a sealing sleeve 104, a reinforcing ring 105, a protective shell 106, an annular rib 109, a connecting seat 107, and a tightening strap 108. Two cable sheaths 101 are provided, and the cable sheaths 101 can protect the cable and conductors. The connecting pipe 102 is sleeved between the two cable sheaths 101. Two positioning rings 103 are provided and fixedly connected to both ends of the connecting pipe 102. Two sealing sleeves 104 are provided and sleeved between the two cable sheaths 101. The sealing sleeve 104 is fixedly connected to the side wall of the positioning ring 103 and attached to the outside of the cable sleeve 101. Two reinforcing rings 105 are provided, which are sleeved on the outside of the sealing sleeve 104 and fixedly connected to the side wall of the positioning ring 103. The protective shell 106 is fixedly connected to the outer wall of the positioning ring 103. The annular rib 109 is fixedly set in the reinforcing ring 105. The material of the annular rib 109 is rubber. The wrapping seat 107 is fixedly connected to the outer wall of the reinforcing ring 105. The tightening band 108 is wrapped around the wrapping seat 107, and one end is fixed to the wrapping seat 107. A positioning post 201 is fixedly connected to the side wall of the positioning ring 103. A rotating shaft 202 is rotatably connected to the end of the positioning post 201. A take-up wheel 203 is fixedly sleeved on the outer wall of the rotating shaft 202. The take-up wheel 203 is fixedly connected to the end of the tightening belt 108. A rotating handle 204 is fixedly connected to the end of the rotating shaft 202. The rotating shaft 202 can drive the ratchet 205 to rotate. The torsion spring 208 can make the locking tooth block 206 quickly reset, so that the locking tooth block 206 can easily mesh with the ratchet 205. Therefore, it can prevent the take-up wheel 203 from rotating in the opposite direction during reinforcement.

[0033] A ratchet 205 is fixedly connected to the end of the rotating shaft 202. A locking tooth block 206 is engaged with the ratchet 205. A fixing post 207, which is fixedly connected to the outer wall of the positioning ring 103, is rotatably connected to one side of the locking tooth block 206. A torsion spring 208 is fixedly installed at the connection between the locking tooth block 206 and the fixing post 207. A limit post 210 is slidably sleeved in the fixing post 207. An abutment plate 209, which abuts against the side wall of the locking tooth block 206, is fixedly connected to the end of the limit post 210. An adjusting screw 211, which is rotatably connected to the fixing post 207, is screwed into the limit post 210. When the connecting pipe 102 is disassembled, the limit post 210 and the abutment plate 209 can be moved by rotating the adjusting screw 211, and the locking tooth block 206 is no longer limited. This allows the winding wheel 203 to quickly reverse and release the tightening belt 108, thereby loosening the tightening of the sealing sleeve 104. The surface of the sealing sleeve 104 has an inner groove 110 that is embedded in the annular rib 109.

[0034] Specifically, the opposite ends of the two cable sleeves 101 can be inserted into the connecting pipe 102. The sealing sleeves 104 connected to both ends of the connecting pipe 102 can seal the connecting pipe 102 and the cable sleeves 101. During installation, the rotating handle 204 can drive the rotating shaft 202 and the winding wheel 203 to rotate, so that the winding wheel 203 can gradually wind up the tightening tape 108. Since one end of the tightening tape 108 is wrapped around the winding seat 107, the rotating shaft 202 can drive the ratchet 205 to rotate during rotation. The torsion spring 208 can quickly reset the locking teeth 206, so that the locking teeth 206 can easily engage with the ratchet 205. Therefore, it can prevent the winding wheel 203 from rotating in the opposite direction during reinforcement. The tightening tape 108 can engage with the annular ridge. The strip 109 is tightened and bound so that the annular rib 109 can be embedded in the inner groove 110 to press and install the sealing sleeve 104. Therefore, it is convenient to quickly connect the two cable sleeves 101 without the need for heat fusion butt welding. The sealing sleeve 104 and the connecting pipe 102 can improve the sealing between the cable sleeves 101 and prevent water in the soil from entering the sleeves. When the connecting pipe 102 is disassembled, the adjusting screw 211 can be rotated to drive the limiting post 210 and the abutment plate 209 to move, and the locking tooth block 206 is no longer limited. This allows the winding wheel 203 to quickly reverse and release the tightening strip 108, thereby loosening the tightening of the sealing sleeve 104. This allows for quick disassembly of the connection structure between the two cable sleeves.

[0035] Example 1

[0036] like Figure 6As shown, in this embodiment, a support frame 301 is fixedly sleeved at the center of the connecting pipe 102. Four limiting grooves 302 are circumferentially spaced on the support frame 301. A double-headed T-shaped plate 303 is provided between two adjacent support frames 301 and is slidably embedded in the limiting grooves 302. Positioning holes 304 are provided at both ends of the double-headed T-shaped plate 303. A locking pin 305 is rotatably connected to the support frame 301 and is screwed into the positioning hole 304. The double-headed T-shaped plate 303 is positioned by rotating the locking pin 305 into the positioning hole 304. This allows for splicing and assembly of the cable sheath pipes according to their specific quantity.

[0037] In this embodiment, a support frame 301 is fixedly installed on the outer wall of each connecting pipe 102. In order to ensure that multiple cable sheaths are arranged in an orderly manner and maintain a certain distance when they are laid, a double-headed T-shaped plate 303 can be slidably inserted into the limiting groove 302. Then, the locking pin 305 is rotated and inserted into the positioning hole 304 to position the double-headed T-shaped plate 303. This allows for splicing and support according to the specific number of cable sheaths, thus improving the laying stability of the cable sheaths.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cable sheath pipe connection structure, characterized by, The utility model relates to a cable protection device, which comprises the following components: cable sleeve (101) is provided with two, cable sleeve (101) can protect cable and wire; Connecting pipe (102) is sleeved between two cable sleeves (101); Positioning ring (103) is provided with two, and is fixedly connected at both ends of connecting pipe (102); Sealing sleeve (104) is provided with two, and is sleeved outside cable sleeve (101), and sealing sleeve (104) is fixedly connected with the side wall of positioning ring (103); Reinforcing ring (105) is provided with two, and is sleeved outside sealing sleeve (104), and is fixedly connected on the side wall of positioning ring (103); Protective shell (106) is fixedly connected on the outer wall of positioning ring (103) Annular rib (109) is fixedly arranged in reinforcing ring (105), and the material of annular rib (109) is rubber; Binding seat (107) is fixedly connected on the outer wall of reinforcing ring (105); Tightening belt (108) is connected with binding seat (107), and one end is fixed with binding seat (107).

2. The cable jacketed tube connection structure of claim 1, wherein, Positioning column (201) is fixedly connected on the side wall of positioning ring (103), rotating shaft (202) is rotatably connected at the end of positioning column (201), winding wheel (203) is fixedly sleeved on the outer wall of rotating shaft (202), winding wheel (203) is fixedly connected with the end of tightening belt (108), and rotating handle (204) is fixedly connected at the end of rotating shaft (202).

3. The cable jacketed tube connection structure of claim 2, wherein, Ratchet gear (205) is fixedly connected at the end of rotating shaft (202), ratchet gear (205) is engaged with clamping tooth block (206), and fixed column (207) is rotatably connected on one side of clamping tooth block (206) and is fixedly connected with the outer wall of positioning ring (103).

4. The cable jacketed tube connection structure of claim 3, wherein, Torsion spring (208) is fixedly arranged at the connecting part of clamping tooth block (206) and fixed column (207).

5. The cable jacketed tube connection structure of claim 3, wherein, Limiting column (210) is slidably sleeved in fixed column (207), abutting plate (209) is fixedly connected at the end of limiting column (210) and abuts against the side wall of clamping tooth block (206), and adjusting screw (211) is screwingly connected with fixed column (207) and is rotatably connected with limiting column (210).

6. The cable jacketed tube connection structure of claim 3, wherein, The surface of sealing sleeve (104) is provided with inner groove (110) embedded with annular rib (109).

7. The cable jacketed pipe connection structure of claim 6, wherein, Support frame (301) is fixedly sleeved at the center position of connecting pipe (102), four limiting grooves (302) are equidistantly arranged on support frame (301), double-head T-shaped plate (303) is arranged between adjacent two support frames (301) and is slidably embedded and connected with limiting groove (302), positioning hole (304) is arranged at both ends of double-head T-shaped plate (303), and lock column (305) is rotatably connected with positioning hole (304).