Cold shrink cable termination structure for ease of positioning

By employing a cold-shrink cable termination structure that facilitates positioning, and utilizing a tapered tooth guide rail and quick-release mechanism, the problem of reduced clamping force of the clamping ring is solved, enabling rapid positioning and disassembly of the cable termination and improving production efficiency.

CN224555176UActive Publication Date: 2026-07-24HUBEI HANENG ELECTRIC POWER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI HANENG ELECTRIC POWER TECHNOLOGY CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The clamping force of the existing cable terminal structure decreases due to the elastic decay of the clamping rings, and the manual replacement process is cumbersome, which affects production efficiency.

Method used

The system employs a cold-shrink cable termination structure that facilitates positioning, including a tapered guide rail, slide rail, gripper, and quick-release mechanism, enabling rapid positioning and disassembly of the cable through mechanical connections.

Benefits of technology

It enables rapid positioning and disassembly of cable terminals, improving work efficiency and reducing manual operation time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to mechanical engineering technical field discloses cold shrink cable terminal structure convenient to position, including insulating rubber, the top fixedly connected with shell body no.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a cold-shrink cable terminal structure that is easy to position. Background Technology

[0002] With economic development and social progress, the scale of the power system has continued to expand, and its coverage has long since broken through the boundaries of cities and extended to the vast countryside. It not only provides strong power for modern industrial bases, but also penetrates into remote mountainous areas that were once short of electricity. All of these areas require a stable and reliable power supply, which has led to a significant increase in the length and number of cable lines. In such a huge power network, which is a vast network of countless interwoven cables, accurately and quickly locating cable terminals has become a key requirement to ensure the normal operation of power installations.

[0003] During the long-term use of cable terminal structures, the clamping rings will gradually experience problems such as elasticity decay and reduced fastening performance due to continuous clamping force, and slowly lose their original fixing effect. Most existing cable terminal structures are replaced manually. However, the manual replacement process is cumbersome, requiring multiple steps such as disassembling the old clamping ring and adjusting the position of the new clamping ring. This not only wastes a lot of time and reduces production efficiency, but also adds extra work for the staff. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a cold-shrink cable terminal structure that is easy to position, aiming to improve the problem of easy detachment of the clamping ring in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a cold-shrink cable terminal structure for easy positioning, comprising an outer shell, a beveled tooth guide rail rotatably connected to the bottom of the inner wall of the outer shell, a traveling rail fixedly connected to the bottom of the beveled tooth guide rail, a slide rail slidably connected to the inner wall of the traveling rail, a gripper fixedly connected to the bottom of the slide rail, an outer shell two fixedly connected to the top of the outer shell, a slotted column rotatably connected to the left side of the inner wall of the outer shell, a connecting block one slidably connected to the inner wall of the slotted column, a rotating column fixedly connected to the front side of the connecting block one, multiple connecting columns fixedly connected to the outer wall of the rotating column, a rotating ring fixedly connected to the left side of the connecting column, a bevel gear fixedly connected to the rear end of the slotted column, a support column fixedly connected to the outer wall of the outer shell two, a top layer block fixedly connected to the top of the support column, and a quick-release mechanism fixedly connected to the bottom of the top layer block, the quick-release mechanism being used to quickly separate the wire from the equipment.

[0006] As a further description of the above technical solution:

[0007] The quick-release mechanism includes a column, the top of which is fixedly connected to the bottom of the top layer block. A conical column II is fixedly connected to the inner wall of the column. A conical column II is slidably connected to the inner wall of the limiting ring II. A spring III is slidably connected to the outer wall of the conical column II. A movable shell is fixedly connected to the bottom of the column. A limiting ring I is slidably connected to the inner wall of the movable shell. An open-hole column is fixedly connected to the inner wall of the limiting ring I. A spring II is slidably connected to the outer wall of the open-hole column. A retaining ring is fixedly connected to the bottom of the open-hole column. A slotted column is slidably connected to the inner wall of the open-hole column. A slot is formed on the outer wall of the slotted column. A conical column I is slidably connected to the inner wall of the slot. Multiple ball grooves are formed on the inner wall of the open-hole column. A ball is slidably connected to the inner wall of the ball groove. A spring I is slidably connected to the outer wall of the conical column I.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the gripper is slidably connected with insulating rubber, the outer wall of the insulating rubber is fixedly connected with a cable, and the top end of the cable is fixedly connected with an insulating layer.

[0010] As a further description of the above technical solution:

[0011] The bottom of the support column is fixedly connected to a base block, and the outer wall of the support column is fixedly connected to multiple fixing rings.

[0012] As a further description of the above technical solution:

[0013] The bottom of the top layer block is fixedly connected to multiple support blocks, the bottom of each support block is fixedly connected to a support rod, and the bottom of each support rod is fixedly connected to a connecting block two.

[0014] As a further description of the above technical solution:

[0015] A waterproof column is fixedly connected to the top of the outer casing, a stress block is fixedly connected to the top of the waterproof column, and an insulation layer is fixedly connected to the outer wall of the cable.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the outer casing is fixedly connected with a plurality of screws, and the outer wall of the screws is fixedly connected with washers.

[0018] As a further description of the above technical solution:

[0019] A tightening ring is fixedly connected to the outer wall of the waterproof column, and a tightening block is fixedly connected to the outer wall of the tightening ring. A screw is threadedly connected to the front side of the tightening block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when clamping is required, rotating the rotating ring drives the connecting column to rotate, the connecting column drives the rotating column, the rotating column drives the connecting block, and then the connecting block drives the slotting column, the slotting column drives the bevel gear to rotate, thereby driving the bottom bevel tooth guide rail to mesh and connect during the rotation of the bevel gear. In addition, the guide rail at the bottom of the bevel tooth guide rail drives the bottom slide rail, and finally the slide rail drives the gripper to clamp.

[0022] 2. In this utility model, the movable housing moves upward, and the slotted column drives the internal bevel gear one and spring one to move into the perforated column. The bevel gear one and the bevel gear one complete the docking. The slotted column lifts the top retaining ball, and the retaining ball is stuck in the middle of the slot. Spring two locks the movable housing onto the retaining ball, thereby fixing the slotted column and the perforated column together. The top movable housing is then moved backward to remove the slotted column. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the front side of the insulating rubber of the cold-shrink cable terminal structure that is easy to position according to this utility model.

[0024] Figure 2 This is a partial structural breakdown diagram of the insulating rubber of the cold-shrink cable terminal structure that is easy to position, as proposed in this utility model.

[0025] Figure 3 This is a partial structural diagram of the outer shell of the cold-shrink cable terminal structure that is easy to position, as proposed in this utility model.

[0026] Figure 4 This is a partial structural disassembly diagram of the outer shell of the cold-shrink cable terminal structure that is easy to position according to this utility model.

[0027] Figure 5 This is a partial view of the bottom structure of the cold-shrink cable terminal structure block that is easy to position, as proposed in this utility model.

[0028] Figure 6 This is a partial structural diagram of the top of the column of the cold-shrink cable terminal structure that is easy to position, as proposed in this utility model.

[0029] Legend:

[0030] 1. Insulating rubber; 2. Quick-release mechanism; 201. Slot; 202. Ball catcher; 203. Slotted post; 204. Spring 1; 205. Conical post 1; 206. Retaining ring; 207. Ball groove; 208. Perforated post; 209. Spring 2; 210. Limiting ring 1; 211. Movable housing; 212. Spring 3; 213. Conical post 2; 214. Limiting ring 2; 215. Post; 3. Gripper; 4. Slide rail; 5. Outer housing 1; 6. Outer housing 2; 7. Rotary... 8. Moving column; 9. Grooved column; 10. Bevel gear; 11. Connecting block one; 12. Connecting column; 13. Rotating ring; 14. Bevel gear guide rail; 15. Cable; 16. Waterproof column; 17. Tightening ring; 18. Stress block; 19. Insulation layer; 20. Tightening block; 21. Screw one; 22. Connecting block two; 23. Support rod; 24. Support block; 25. Top layer block; 26. Support column; 27. Fixing ring; 28. Bottom block; 29. ​​Screw two; 30. Washer; 31. Traveling rail. 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 the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides a cold-shrink cable terminal structure for easy positioning, including an outer shell 5. A beveled tooth guide rail 13 is rotatably connected to the bottom of the inner wall of the outer shell 5. A traveling rail 30 is fixedly connected to the bottom of the beveled tooth guide rail 13. A slide rail 4 is slidably connected to the inner wall of the traveling rail 30. A gripper 3 is fixedly connected to the bottom of the slide rail 4. An outer shell 6 is fixedly connected to the top of the outer shell 5. A slotted column 8 is rotatably connected to the left side of the inner wall of the outer shell 5. A connecting block 10 is slidably connected to the inner wall of the slotted column 8. A rotating column 7 is fixedly connected to the front side of the connecting block 10. Multiple connecting columns 11 are fixedly connected to the outer wall of the rotating column 7. A rotating ring 12 is fixedly connected to the left side of the connecting column 11. A bevel gear 9 is fixedly connected to the rear end of the slotted column 8. A support column 25 is fixedly connected to the outer wall of the outer shell 6. A top layer block 24 is fixedly connected to the top of the support column 25. A quick-release mechanism 2 is fixedly connected to the bottom of the top layer block 24. The quick-release mechanism 2 is used to quickly separate the wire from the equipment.

[0033] Specifically, the terminal includes an outer casing 5, on the bottom of which a conical guide rail 13 is rotatably connected. A guide rail 30 is fixedly connected to the bottom of the conical guide rail 13. A slide rail 4 is slidably connected to the inner wall of the guide rail 30. A gripper 3 is fixedly connected to the bottom of the slide rail 4 for holding cables. An outer casing 6 is fixedly connected to the top of the outer casing 5 to form a closed space, protecting the internal cables and connecting components. A slotted post 8 is rotatably connected to the left side of the inner wall of the outer casing 5. A connecting block 10 is slidably connected to the inner wall of the slotted post 8. A rotating column 7 is fixedly connected to the front side of the 10. Multiple connecting columns 11 are fixedly connected to the outer wall of the rotating column 7. A rotating ring 12 is fixedly connected to the left side of the connecting column 11 for further fixing and adjusting the position of the cable. A bevel gear 9 is fixedly connected to the rear end of the groove column 8. The bevel gear 9 can cooperate with the bevel gear guide rail 13 to achieve precise positioning and adjustment. A support column 25 is fixedly connected to the outer wall of the outer shell 6. A top layer block 24 is fixedly connected to the top of the support column 25. A quick-release mechanism 2 is fixedly connected to the bottom of the top layer block 24. The quick-release mechanism 2 is designed to quickly separate the wire from the equipment.

[0034] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 The quick-release mechanism 2 includes a column 215, the top of which is fixedly connected to the bottom of the top layer block 24. A limit ring 214 is fixedly connected to the inner wall of the column 215. A conical column 213 is slidably connected to the inner wall of the limit ring 214. A spring 212 is slidably connected to the outer wall of the conical column 213. A movable housing 211 is fixedly connected to the bottom of the column 215. A limit ring 210 is slidably connected to the inner wall of the movable housing 211. An open-ended column is fixedly connected to the inner wall of the limit ring 210. 208, a spring 209 is slidably connected to the outer wall of the perforated column 208, a retaining ring 206 is fixedly connected to the bottom of the perforated column 208, a slotted column 203 is slidably connected to the inner wall of the perforated column 208, a slot 201 is provided on the outer wall of the slotted column 203, a conical column 205 is slidably connected to the inner wall of the slot 201, a plurality of ball grooves 207 are provided on the inner wall of the perforated column 208, a ball retainer 202 is slidably connected to the inner wall of the ball grooves 207, and a spring 204 is slidably connected to the outer wall of the conical column 205.

[0035] Specifically, in the quick-release mechanism 2, the column 215 is one of the core parts of the entire mechanism. Its top is firmly fixed to the bottom of the top layer block 24, ensuring the stability and precise alignment between the column 215 and the top layer block 24. A limit ring 214 is fixedly connected to the inner wall of the column 215, limiting the movement range of the conical column 213. The outer wall of the conical column 213 is slidably connected to a spring 212, which provides a certain elastic force, allowing the conical column 213 to quickly return to its initial position when subjected to external force. At the bottom of the column 215, a movable housing 211 is fixedly connected. A limit ring 210 is slidably connected to the inner wall of the movable housing 211, further ensuring the stability and precise control of the movable housing 211. An open-ended column 208 is fixedly connected to the inner wall of the limit ring 210, and a spring is slidably connected to the outer wall of the open-ended column 208. Spring 209 provides additional elasticity to ensure that the perforated post 208 can quickly return to its initial position when subjected to external force. A retaining ring 206 is fixedly connected to the bottom of the perforated post 208 to prevent it from deviating from the predetermined track during movement. A slotted post 203 is slidably connected to the inner wall of the perforated post 208. A slot 201 is formed on the outer wall of the slotted post 203. A conical post 205 is slidably connected to the inner wall of the slot 201. A spring 204 is slidably connected to the outer wall of the conical post 205 to provide a certain elasticity and ensure that the conical post 205 can quickly return to its initial position when subjected to external force. In addition, multiple ball grooves 207 are formed on the inner wall of the perforated post 208. A ball retainer 202 is slidably connected to the inner wall of the ball grooves 207 to provide additional stability and precise control to ensure that the perforated post 208 remains stable during movement.

[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The inner wall of the gripper 3 is slidably connected with insulating rubber 1, the outer wall of the insulating rubber 1 is fixedly connected with cable 14, the top end of cable 14 is fixedly connected with insulating layer 18, the bottom of the support column 25 is fixedly connected with bottom block 27, the outer wall of the support column 25 is fixedly connected with multiple fixing rings 26, the bottom of the top block 24 is fixedly connected with multiple support blocks 23, the bottom of the support block 23 is fixedly connected with support rod 22, and the bottom of the support rod 22 is fixedly connected with connecting block 21.

[0037] Specifically, insulating rubber 1 is slidably connected to the inner wall of the gripper 3, and the outer wall of the insulating rubber 1 is firmly fixed to the cable 14. The top part of the cable 14 is fixedly connected to an insulating layer 18. At the bottom of the support column 25, a bottom block 27 is fixedly connected. Multiple fixing rings 26 are fixedly connected to the outer wall of the support column 25. These fixing rings 26 can be used to fix other components or provide additional support. At the bottom of the top block 24, multiple support blocks 23 are fixedly connected. The bottom of the support block 23 is fixedly connected to the support rod 22. The bottom of the support rod 22 is fixedly connected to the connecting block 21.

[0038] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 A waterproof column 15 is fixedly connected to the top of the outer casing 2 6, and a stress block 17 is fixedly connected to the top of the waterproof column 15. An insulation layer 18 is fixedly connected to the outer wall of the cable 14. Multiple screws 28 are fixedly connected to the inner wall of the outer casing 2 6. Washers 29 are fixedly connected to the outer wall of the screws 28. A tightening ring 16 is fixedly connected to the outer wall of the waterproof column 15. A tightening block 19 is fixedly connected to the outer wall of the tightening ring 16. A screw 20 is threadedly connected to the front side of the tightening block 19.

[0039] Specifically, the top part of the outer casing 2 6 is firmly fixed and connected to a waterproof column 15. The top part of the waterproof column 15 is also fixed and connected to a stress block 17. An insulation layer 18 is fixed and connected to the outer wall of the cable 14. Multiple screws 28 are fixed and connected to the inner wall of the outer casing 2 6. Washers 29 are fixed and connected to the outer walls of these screws 28. At the same time, a tightening ring 16 is fixed and connected to the outer wall of the waterproof column 15. A tightening block 19 is fixed and connected to the outer wall of the tightening ring 16 to further strengthen the fixing effect of the waterproof column 15. The front part of the tightening block 19 is connected to a screw 20 by a thread to further fix and protect the cable 14.

[0040] Working principle: When clamping is required, rotating the rotating ring 12 drives the connecting column 11 to rotate. The connecting column 11 drives the middle rotating column 7, which in turn drives the bottom connecting block 10. Subsequently, the connecting block 10 drives the slotting column 8, which in turn drives the bevel gear 9 to rotate. Thus, during the rotation of the bevel gear 9, the bottom bevel tooth guide rail 13 engages and connects. In addition, the bottom guide rail of the bevel tooth guide rail 13 drives the bottom slide rail 4, ultimately enabling the slide rail 4 to drive the gripper 3 to clamp.

[0041] The movable housing 211 moves upward, and the slotted column 203 drives the internal conical column 205 and spring 204 to move into the perforated column 208. The conical column 205 and the conical column 213 are connected. The slotted column 203 lifts the retaining ball 202 inside the ball groove 207. The retaining ball 202 is stuck in the middle of the retaining groove 201. The spring 209 holds the movable housing 211 on the retaining ball 202, thereby fixing the slotted column 203 and the perforated column 208 together. The top movable housing 211 is then moved backward to remove the slotted column 203.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold-shrink cable termination structure for easy positioning, comprising an outer casing (5), characterized in that: A conical toothed guide rail (13) is rotatably connected to the bottom of the inner wall of the outer shell (5). A traveling rail (30) is fixedly connected to the bottom of the conical toothed guide rail (13). A slide rail (4) is slidably connected to the inner wall of the traveling rail (30). A gripper (3) is fixedly connected to the bottom of the slide rail (4). An outer shell (6) is fixedly connected to the top of the outer shell (5). A grooving column (8) is rotatably connected to the left side of the inner wall of the outer shell (5). A connecting block (10) is slidably connected to the inner wall of the grooving column (8). The front of the connecting block (10) is... A rotating column (7) is fixedly connected to the side. Multiple connecting columns (11) are fixedly connected to the outer wall of the rotating column (7). A rotating ring (12) is fixedly connected to the left side of the connecting column (11). A bevel gear (9) is fixedly connected to the rear end of the groove column (8). A support column (25) is fixedly connected to the outer wall of the outer shell (6). A top layer block (24) is fixedly connected to the top of the support column (25). A quick-release mechanism (2) is fixedly connected to the bottom of the top layer block (24). The quick-release mechanism (2) is used to quickly separate the wires from the equipment.

2. The easily positioned cold-shrink cable termination structure according to claim 1, characterized in that: The quick-release mechanism (2) includes a column (215), the top of which is fixedly connected to the bottom of the top block (24). A limit ring two (214) is fixedly connected to the inner wall of the column (215). A conical column two (213) is slidably connected to the inner wall of the limit ring two (214). A spring three (212) is slidably connected to the outer wall of the conical column two (213). A movable housing (211) is fixedly connected to the bottom of the column (215). A limit ring one (210) is slidably connected to the inner wall of the movable housing (211). An open-hole column (20) is fixedly connected to the inner wall of the limit ring one (210). 8) A second spring (209) is slidably connected to the outer wall of the perforated column (208), a retaining ring (206) is fixedly connected to the bottom of the perforated column (208), a slotted column (203) is slidably connected to the inner wall of the perforated column (208), a slot (201) is provided on the outer wall of the slotted column (203), a conical column (205) is slidably connected to the inner wall of the slot (201), a plurality of ball grooves (207) are provided on the inner wall of the perforated column (208), a ball retainer (202) is slidably connected to the inner wall of the ball groove (207), and a first spring (204) is slidably connected to the outer wall of the conical column (205).

3. The easily positioned cold-shrink cable termination structure according to claim 1, characterized in that: The inner wall of the gripper (3) is slidably connected with insulating rubber (1), the outer wall of the insulating rubber (1) is fixedly connected with a cable (14), and the top end of the cable (14) is fixedly connected with an insulating layer (18).

4. The easily positioned cold-shrink cable termination structure according to claim 1, characterized in that: The bottom of the support column (25) is fixedly connected to a base block (27), and the outer wall of the support column (25) is fixedly connected to multiple fixing rings (26).

5. The easily positioned cold-shrink cable termination structure according to claim 1, characterized in that: The bottom of the top layer block (24) is fixedly connected to multiple support blocks (23), the bottom of the support block (23) is fixedly connected to a support rod (22), and the bottom of the support rod (22) is fixedly connected to a connecting block two (21).

6. The easily positioned cold-shrink cable termination structure according to claim 1, characterized in that: A waterproof column (15) is fixedly connected to the top of the outer shell (6), and a stress block (17) is fixedly connected to the top of the waterproof column (15).

7. The easily positioned cold-shrink cable termination structure according to claim 1, characterized in that: The inner wall of the outer shell (6) is fixedly connected with a plurality of screws (28), and the outer wall of the screws (28) is fixedly connected with washers (29).

8. The easily positioned cold-shrink cable termination structure according to claim 6, characterized in that: The outer wall of the waterproof column (15) is fixedly connected to a tightening ring (16), the outer wall of the tightening ring (16) is fixedly connected to a tightening block (19), and the front side of the tightening block (19) is threaded with a screw (20).