Tight silicone rubber cold contraction cable
By designing a separate interface and a high-strength nylon protective net in silicone rubber cold-shrinked cable, the problem of insufficient wrapping of the cable joints and lack of rat insect interception is solved, and the tight type and safe use of the cable joints are improved.
Patent Information
- Application Number
- CN202421724150.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-19
AI Technical Summary
When the silicone rubber shrink sleeve wraps the cable grounding wire, the grounding wire part is wrapped in the sleeve and the other part leaks, affecting the tightness and sealing of the cable joints. At the same time, it lacks the ability to intercept rats and insects, affecting the safe use of the cable.
A tight silicone rubber cold-shrink cable is designed, using a sub-interface and a high-strength nylon protective net. The cable grounding wire is separately tightly wrapped through the sub-interface. The first rare earth tungstate ring and reinforcement ring ribs are used to improve the tightness of the sub-interface, and the high-strength nylon protective net is used to prevent rats from gnawing.
The tight wrapping of the cable joint position is achieved, the gaps are avoided, the safety and use of the cable is improved, and the rat insects are effectively intercepted through a high-strength nylon protective net, further improving the cable protection ability.
Smart Images
Figure CN222801438U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cables, and in particular relates to a compact silicone rubber cold shrink cable. Background Art
[0002] Silicone rubber has the characteristics of excellent insulation, high elasticity, UV resistance, anti-fouling, aging resistance, good water repellency, etc. It also has excellent cold and heat resistance and is suitable for various environments such as high altitude areas, cold areas, humid areas, salt fog areas and heavily polluted areas. Silicone rubber sleeve is a common cable accessory. During installation, after removing the plastic spiral support, the silicone rubber sleeve is wrapped around the outside of the cable using the cold shrink principle. When using silicone rubber cold shrink sleeve, it is usually necessary to install the grounding wire at the cable joint. After wrapping and fixing the grounding wire, the silicone rubber cold shrink sleeve will wrap part of the grounding wire inside it, and the remaining grounding wire will leak out. The wrapping of the cable by the silicone rubber cold shrink sleeve is affected by the grounding wire and gaps appear, which affects the tightness and sealing of the cable joint, which is not conducive to the safe use of the cable. In addition, some cable joints are at a low height, and rats and insects are easy to gnaw on the silicone rubber cold shrink sleeve, and the cable terminal or joint position will remove the protective layer, while the traditional silicone rubber cold shrink sleeve lacks the ability to intercept rats and insects, which will further affect the safe use of the cable. Utility Model Content
[0003] The utility model provides a compact silicone rubber cold shrink cable, which has the characteristics of improving the compactness of the cable joint position and intercepting rats and insects.
[0004] The utility model provides the following technical solution: comprising a silicone rubber sleeve, a plurality of sheds and a stress cone, wherein a branch interface is arranged on one side of the silicone rubber sleeve, the branch interface is communicated with the inner space of the silicone rubber sleeve, three first annular inner grooves are arranged on the inner wall of the branch interface, wherein first rare earth tungstate rings are arranged inside two of the first annular inner grooves, a first reinforcing ring rib is fixedly connected to the inner wall of another first annular inner groove, the first reinforcing ring rib is located between the two first rare earth tungstate rings, a high-strength nylon protective net is fixedly connected between every two of the sheds, and the high-strength nylon protective net shields the silicone rubber sleeve from the outside.
[0005] Among them, six second annular inner grooves are opened in the silicone rubber sleeve, two of which are provided with second reinforcing ring ribs, and the inner walls of the other four second annular inner grooves are fixedly connected with second rare earth tungstate rings, and the second reinforcing ring ribs are located between the corresponding two second rare earth tungstate rings.
[0006] Wherein, two annular corrugated protrusions are arranged in the silicone rubber sleeve, and the two annular corrugated protrusions are respectively located close to the opening at one end of the silicone rubber sleeve.
[0007] Wherein, a U-shaped limiting belt corresponding to the position of the branch interface is fixedly connected to one side of the silicone rubber sleeve, and the U-shaped limiting belt guides and limits the grounding wire.
[0008] Among them, several traction ropes are fixedly connected to the inner sides of several high-strength nylon protective nets, and several traction ropes are fixedly connected to the side walls of the silicone rubber sleeves.
[0009] The beneficial effects of the utility model are: the cable grounding wire is separately and tightly wrapped through the branch interface, thereby avoiding the situation where the silicone rubber sleeve wraps the cable joint with a gap, so that the silicone rubber sleeve and the cable can be connected more tightly;
[0010] Through the heat shrinkage of the first rare earth tungstate ring, the inner diameter of the first rare earth tungstate ring is reduced, and the first rare earth tungstate ring shrinks the branch interface, thereby improving the tightness of the branch interface to the ground wire in a high temperature environment, which is beneficial to the safe use of the cable;
[0011] The cables are wrapped and protected by several high-strength nylon protective nets to prevent rodents and insects from gnawing on the silicone rubber sleeve and reaching the cable terminal position, thereby further improving the protection capability of the cables and improving the safe use of the cables.
[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0014] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;
[0015] Figure 3 for Figure 2 The enlarged schematic diagram of the middle A part;
[0016] Figure 4 for Figure 2 The enlarged schematic diagram of the middle B part;
[0017] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the medium and high strength nylon protective net of the utility model.
[0018] In the figure: 1. Silicone rubber sleeve; 11. Umbrella skirt; 12. Stress cone; 13. Second annular inner groove; 131. Second reinforcing ring rib; 132. Second rare earth tungstate ring; 14. Annular corrugated protrusion; 2. Branch interface; 21. First annular inner groove; 22. First rare earth tungstate ring; 23. First reinforcing ring rib; 24. U-shaped limiting belt; 3. High-strength nylon protective net; 31. Towing rope. DETAILED DESCRIPTION
[0019] See also Figure 1-Figure 5 The utility model provides the following technical solution: comprising a silicone rubber sleeve 1, a plurality of sheds 11 and a stress cone 12, a branch interface 2 is arranged on one side of the silicone rubber sleeve 1, the branch interface 2 is communicated with the internal space of the silicone rubber sleeve 1, three first annular inner grooves 21 are opened on the inner wall of the branch interface 2, two of which are provided with first rare earth tungstate rings 22, and the inner wall of another first annular inner groove 21 is fixedly connected with a first reinforcing ring rib 23, the first reinforcing ring rib 23 is located between the two first rare earth tungstate rings 22, and a high-strength nylon protective net 3 is fixedly connected between every two sheds 11, and the high-strength nylon protective net 3 shields the silicone rubber sleeve 1 from the outside.
[0020] In this embodiment: the silicone rubber sleeve 1 supports the components of the device, a number of sheds 11 increase the creepage distance along the surface, improve the insulation strength of the cable accessories as a whole, and prevent surface discharge and flashover. The stress cone 12 disperses the electrical stress concentrated at the cable terminal or joint to avoid the formation of excessively high electric fields at these key locations, thereby improving the electrical reliability and stability of the cable system. The silicone rubber sleeve 1 is sleeved at the cable joint when in use. After the grounding wire at the cable joint is installed, the silicone rubber sleeve 1 is sleeved on the cable joint, and the end of the grounding wire enters the silicone rubber sleeve 1. The cable joint is then led from the branch interface 2. At this time, the end of the silicone rubber sleeve 1 only wraps the cable, and the silicone rubber sleeve 1 wraps the cable grounding wire through the branch interface 2, so that the cable grounding wire will not be between the silicone rubber sleeve 1 and the cable, thereby avoiding the situation where the silicone rubber sleeve 1 wraps the cable joint with a gap, so that the silicone rubber sleeve 1 and the cable can be connected more tightly, and the branch interface 2 corresponds to the size of the grounding wire. When the spiral support body is taken out from the branch interface 2, the branch interface 2 can be cold-shrunk, so that the branch interface 2 can wrap the cable grounding wire separately and tightly, and the branch interface 2 connects the two first rare earth tungstate rings 2 through the three first annular inner grooves 21. 2 and the first reinforcing ring ribs 23 are accommodated, the two first reinforcing ring ribs 23 increase the resilience and contraction ability of the tap 2, which is convenient for improving the wrapping tightness of the tap 2 to the grounding wire, the first rare earth tungstate ring 22 expands due to the temperature reduction, the two first reinforcing ring ribs 23 are distributed on both sides of the first rare earth tungstate ring 22, the contraction of the two first reinforcing ring ribs 23 makes the tightness of the tap 2 not be disturbed by the first rare earth tungstate ring 22, when the temperature rises, the first rare earth tungstate ring 22 can shrink, the inner diameter of the first rare earth tungstate ring 22 is reduced, and the first rare earth tungstate ring 22 is tight to the tap 2 The silicone rubber sleeve 1 is shrunk, thereby improving the tightness of the grounding wires of the branch interface 2 in a high temperature environment, which is beneficial to the safe use of the cable. At the same time, after the spiral support body in the silicone rubber sleeve 1 is taken out, the silicone rubber sleeve 1 shrinks to wrap the cable terminal, and the high-strength nylon protective net 3 is separated from the side wall of the silicone rubber sleeve 1. A plurality of umbrella skirts 11 support a plurality of high-strength nylon protective nets 3. After the protective layer wrapped around the cable in the area between the plurality of umbrella skirts 11 is removed, the high-strength nylon protective net 3 wraps the cable for protection to prevent rats and insects from gnawing on the silicone rubber sleeve 1 to reach the cable terminal position, thereby further improving the protection capability of the cable and improving the safe use of the cable.
[0021] Six second annular inner grooves 13 are provided in the silicone rubber sleeve 1, wherein two second annular inner grooves 13 are provided with second reinforcing ring ribs 131, and the inner walls of the other four second annular inner grooves 13 are fixedly connected with second rare earth tungstate rings 132, and the second reinforcing ring ribs 131 are located between the corresponding two second rare earth tungstate rings 132; the second annular inner grooves 13 accommodate the corresponding second reinforcing ring ribs 131 and the second rare earth tungstate rings 132, and the six second annular inner grooves 13 are divided into two groups and are located close to the two ends of the silicone rubber sleeve 1, so that the two ends of the silicone rubber sleeve 1 The two second reinforcing ring ribs 131 increase the ability of the silicone rubber sleeve 1 to rebound and shrink, which is convenient for improving the wrapping tightness of the silicone rubber sleeve 1 to the cable. The second rare earth tungstate ring 132 expands due to the temperature drop. When the temperature rises, the second rare earth tungstate ring 132 can shrink. The inner diameter of the second rare earth tungstate ring 132 is reduced. The second rare earth tungstate ring 132 shrinks the silicone rubber sleeve 1, thereby improving the tightness of the silicone rubber sleeve 1 to the cable in a high temperature environment, which is beneficial to the safe use of the cable.
[0022] Two annular corrugated protrusions 14 are arranged in the silicone rubber sleeve 1, and the two annular corrugated protrusions 14 are respectively located close to the opening at one end of the silicone rubber sleeve 1; when the silicone rubber sleeve 1 is sleeved on the cable terminal or joint position, the annular corrugated protrusions 14 form multiple protection lines between the silicone rubber sleeve 1 and the cable, thereby increasing the tightness of the silicone rubber sleeve 1 wrapping the cable, preventing the infiltrated water from continuing to penetrate deeper, and the annular corrugated protrusions 14 increase the friction between the silicone rubber sleeve 1 and the cable, thereby preventing the device from slipping off the cable terminal or joint.
[0023] A U-shaped limiting belt 24 corresponding to the position of the branch interface 2 is fixedly connected to one side of the silicone rubber sleeve 1, and the U-shaped limiting belt 24 guides and limits the grounding wire; when the grounding wire extends from the branch interface 2, the branch interface 2 and the outer side of the silicone rubber sleeve 1 are oblique cross-sections, so that the grounding wire can fit on one side of the silicone rubber sleeve 1, and then the grounding wire is passed through the U-shaped limiting belt 24, and the U-shaped limiting belt 24 limits the grounding wire, thereby improving the connection stability between the grounding wire and the branch interface 2.
[0024] Several traction ropes 31 are fixedly connected to the inner side of several high-strength nylon protective nets 3, and several traction ropes 31 are fixedly connected to the side wall of the silicone rubber sleeve 1; when the silicone rubber sleeve 1 contracts, several traction ropes 31 are pulled, and several traction ropes 31 pull the corresponding high-strength nylon protective nets 3, so that the high-strength nylon protective nets 3 can be recessed toward the direction of the silicone rubber sleeve 1, thereby improving the interception and protection range of the high-strength nylon protective net 3.
[0025] The working principle and use process of the utility model are as follows: the silicone rubber sleeve 1 is sleeved on the cable joint, the end of the grounding wire enters the inside of the silicone rubber sleeve 1, and then the cable joint is led out from the branch interface 2. At this time, the end of the silicone rubber sleeve 1 only wraps the cable, and the silicone rubber sleeve 1 wraps the cable grounding wire through the branch interface 2, so that the cable grounding wire will not be between the silicone rubber sleeve 1 and the cable, thereby avoiding the situation where a gap appears in the silicone rubber sleeve 1 wrapping the cable joint, so that the silicone rubber sleeve 1 and the cable can be connected more tightly, and when the spiral support body is taken out from the branch interface 2, the branch interface 2 can wrap the cable grounding wire separately and tightly, and after the spiral support body in the silicone rubber sleeve 1 is taken out, the high-strength nylon protective net 3 wraps the cable for protection, preventing rats and insects from gnawing the silicone rubber sleeve 1 to reach the terminal position of the cable, further improving the protection capability of the cable, and improving the safe use of the cable.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A compact silicone rubber cold shrink cable, comprising a silicone rubber sleeve (1), a plurality of sheds (11) and a stress cone (12), characterized in that: A branch interface (2) is provided on one side of the silicone rubber sleeve (1), and the branch interface (2) is communicated with the internal space of the silicone rubber sleeve (1). Three first annular inner grooves (21) are provided on the inner wall of the branch interface (2), wherein first rare earth tungstate rings (22) are provided inside two of the first annular inner grooves (21), and a first reinforcing ring rib (23) is fixedly connected to the inner wall of another first annular inner groove (21), and the first reinforcing ring rib (23) is located between the two first rare earth tungstate rings (22). A high-strength nylon protective net (3) is fixedly connected between each two of the umbrella skirts (11), and the high-strength nylon protective net (3) shields the silicone rubber sleeve (1) from the outside.
2. A compact silicone rubber cold shrink cable according to claim 1, characterized in that: Six second annular inner grooves (13) are provided in the silicone rubber sleeve (1), wherein two of the second annular inner grooves (13) are provided with second reinforcing ring ribs (131), and the inner walls of the other four second annular inner grooves (13) are fixedly connected with second rare earth tungstate rings (132), and the second reinforcing ring ribs (131) are located between the corresponding two second rare earth tungstate rings (132).
3. A compact silicone rubber cold shrink cable according to claim 1, characterized in that: Two annular corrugated protrusions (14) are arranged inside the silicone rubber sleeve (1), and the two annular corrugated protrusions (14) are respectively located close to an opening at one end of the silicone rubber sleeve (1).
4. A compact silicone rubber cold shrink cable according to claim 1, characterized in that: A U-shaped limiting belt (24) corresponding to the position of the branch interface (2) is fixedly connected to one side of the silicone rubber sleeve (1), and the U-shaped limiting belt (24) guides and limits the grounding wire.
5. The compact silicone rubber cold shrink cable according to claim 1, characterized in that: A plurality of traction ropes (31) are fixedly connected to the inner sides of the plurality of high-strength nylon protective nets (3), and the plurality of traction ropes (31) are fixedly connected to the side wall of the silicone rubber sleeve (1).