Auxiliary pipe penetrating device for power cable

By designing a snap-fit, clamping, and damage-reducing mechanism, the problem of cable auxiliary conduit pullers being unable to adapt to different types of cables was solved, achieving wear reduction and stabilization during cable transmission and improving construction efficiency.

CN224138617UActive Publication Date: 2026-04-17JINHU BOTONG TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHU BOTONG TECH CO LTD
Filing Date
2025-04-29
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing power cable auxiliary conduit pullers cannot quickly adjust to the transmission size of different cable models, and may damage the cable sheath during transmission.

Method used

It adopts a snap-fit, clamping, and damage reduction mechanism design, including sliding components, telescopic components, springs, and pulleys, to achieve adaptive transmission of different types of cables, and stabilizes the cable through elastic potential energy to reduce friction and damage.

Benefits of technology

It enables rapid and adaptable transmission of different cable types, reduces cable sheath wear, and improves construction efficiency and equipment stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224138617U_ABST
    Figure CN224138617U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of power cable arrangement, and discloses a power cable auxiliary pipe penetrating device which comprises a lower shell, a buckle mechanism is installed outside the lower shell, an upper shell is installed on the lower shell through the buckle mechanism, a pressing mechanism is installed inside the upper shell, and a loss reduction mechanism is installed inside the lower shell. And the loss reduction mechanism comprises a sliding assembly and a telescopic assembly, the sliding assembly comprises a fixing block, the fixing block is fixedly connected to the inner side of the lower shell, and a sliding block is slidably connected into the fixing block. According to the utility model, under the action of the spring and the pulley, in the cable conveying process, adaptation to different types of cables is realized, and meanwhile, friction of equipment to the cables in the conveying process is reduced, and damage to the cables is reduced; besides, through the elastic potential energy of the spring, the problem that the cable cannot be quickly stabilized after being conveyed to a required position is solved, and the working efficiency of workers is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of power cable laying technology, and in particular to a power cable auxiliary conduit installation device. Background Technology

[0002] Power cables are cable products used for transmitting and distributing electrical energy. Their basic structure includes a conductor, insulation layer, shielding layer, and protective layer. They are widely used in urban underground power grids, power plant lead-out lines, internal power supply in industrial and mining enterprises, and underwater power transmission lines across rivers and seas. Naturally, when cables need to be laid in the aforementioned scenarios, auxiliary conduit installation equipment for power cables is indispensable.

[0003] A power cable conduit puller is a tool used in power construction, primarily for cable threading and pulling. It allows for flexible cable threading operations even in confined spaces, significantly improving construction efficiency and reducing operational difficulty. This compact and easy-to-operate device is suitable for cable laying in complex environments, such as underground cable ducts and tunnels.

[0004] Although existing power cable conduit pullers can adapt to most scenarios, they cannot quickly adjust to the corresponding transmission size when dealing with different types of cables, and they generate significant friction during transmission, causing damage to the cable sheath. Therefore, a new power cable conduit puller is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an auxiliary conduit inserter for power cables, which aims to improve the problems of existing technologies that cannot adapt to cables of different diameters and that the cables will wear out during transmission.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A power cable auxiliary conduit puller includes a lower shell, a snap-fit ​​mechanism installed on the outside of the lower shell, an upper shell installed on the lower shell via the snap-fit ​​mechanism, a clamping mechanism installed inside the upper shell, and a loss reduction mechanism installed inside the lower shell. The loss reduction mechanism includes a sliding component and a telescopic component. The sliding component includes a fixed block, which is fixedly connected to the inside of the lower shell. A slider is slidably connected inside the fixed block, and a fixed rod is fixedly connected to the middle of the slider. A pulley is rotatably connected to the outside of the fixed rod.

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

[0009] The telescopic component includes a second spring, which is fixedly connected inside the fixed block. A sliding groove is provided inside the fixed block. The second spring is fixedly connected to the slider, and the slider is slidably connected to the outside of the sliding groove.

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

[0011] The clamping mechanism includes a lifting component and a stabilizing component. The lifting component includes a handle, which is slidably connected to the middle of the upper shell. A clamping plate is fixedly connected to the outside of the handle.

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

[0013] The stabilizing component includes a support column, which is fixedly connected to the inner side of the upper shell. A sliding hole is opened inside the support column, and a spring is fixedly connected inside the sliding hole. An insert rod is fixedly connected to the outside of the clamping plate, and the insert rod is slidably connected inside the sliding hole. The spring is fixedly connected to the outside of the insert rod.

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

[0015] The latching mechanism includes a plugging and pulling component and a fixing component. The plugging and pulling component includes a housing. The housing is fixedly connected to the outside of the lower housing. A pin is slidably connected inside the housing. A pull ring is fixedly connected to the outside of the pin. A limit block is fixedly connected to the outside of the pin. A spring is sleeved on the outside of the pin.

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

[0017] The fixing component includes a plug plate, which is fixedly connected to the outside of the upper shell. A slot is provided inside the plug plate, and the pin engages with the slot.

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

[0019] A rubber pad is fixedly connected to the outside of the clamping plate;

[0020] As a further description of the above technical solution:

[0021] Both the lower shell and the upper shell are fixedly connected to hinges.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the spring and pulley function are used to adapt to different types of cables during cable transmission, while reducing the friction between the equipment and the cable during transmission and reducing cable damage.

[0024] 2. In this utility model, the problem of the cable not being able to be quickly stabilized after being transmitted to the required position is solved by utilizing the elastic potential energy of the spring, thereby improving the work efficiency of the staff. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an auxiliary conduit inserter for power cables proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the clamping mechanism of an auxiliary conduit puller for power cables proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the loss reduction mechanism of an auxiliary conduit puller for power cables proposed in this utility model;

[0028] Figure 4 This is a cross-sectional schematic diagram of the snap-fit ​​mechanism of an auxiliary cable conduit puller proposed in this utility model;

[0029] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 6 This is a cross-sectional schematic diagram of the clamping mechanism of an auxiliary conduit inserter for power cables proposed in this utility model.

[0031] Legend:

[0032] 1. Lower shell; 2. Upper shell; 3. Clamping plate; 4. Rubber pad; 5. Handle; 6. Pulley; 7. Fixing block; 8. Outer shell; 9. Insert plate; 10. Sliding hole; 11. Support column; 12. Hinge; 13. Pull ring; 14. Pin; 15. Spring 1; 16. Limiting block; 17. Slot; 18. Sliding block; 19. Fixing rod; 20. Slide groove; 21. Spring 2; 22. Insert rod; 23. Spring 3. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5This utility model provides an embodiment of an auxiliary cable conduit installation device, comprising a lower shell 1, with a snap-fit ​​mechanism installed on the outside of the lower shell 1 for opening and closing the device for easy maintenance. An upper shell 2 is installed on the lower shell 1 via the snap-fit ​​mechanism, and a clamping mechanism is installed inside the upper shell 2 to secure the cable and prevent it from moving freely. A loss-reducing mechanism is installed inside the lower shell 1 to reduce friction during cable transport, thereby reducing damage to the cable sheath. The loss-reducing mechanism includes a sliding component and a telescopic component. The sliding component includes a fixed block 7, which is fixedly connected to the inside of the lower shell 1. A slider 18 is slidably connected inside the fixed block 7, allowing the slider 18 to move freely on the fixed block 7. The slider 18 is movable, with a fixed rod 19 fixedly connected to the middle. A pulley 6 is rotatably connected to the outside of the fixed rod 19. The fixed rod 19 can drive the slider 18 to move. The telescopic component includes a second spring 21, which is fixedly connected inside the fixed block 7. Through the elastic action of the second spring 21, the slider 18 can return to the correct position at any time. A groove 20 is opened inside the fixed block 7 to facilitate the movement of the slider 18. The second spring 21 is fixedly connected to the slider 18, which can more stably fix the second spring 21 inside the fixed block 7 and reduce the risk of the second spring 21 being lost. The slider 18 is slidably connected to the outside of the groove 20, which can more quickly adapt to different types of cables during cable transmission.

[0035] Reference Figure 1 , Figure 2 and Figure 6 The clamping mechanism includes a lifting component and a stabilizing component. The lifting component includes a handle 5, which is slidably connected to the middle of the upper shell 2, making it easier for the operator to pull. A clamping plate 3 is fixedly connected to the outside of the handle 5, making it easier to clamp the transmitted cable. The stabilizing component includes a support column 11, which is fixedly connected to the inside of the upper shell 2. A sliding hole 10 is opened inside the support column 11, making it easier for the insertion rod 22 to slide outside the sliding hole 10. A spring 23 is fixedly connected inside the sliding hole 10. Through the elastic action of the spring 23, the insertion rod 22 can quickly return to its original position after being squeezed. The insertion rod 22 is fixedly connected to the outside of the clamping plate 3. The insertion rod 22 is slidably connected inside the sliding hole 10. The spring 23 is fixedly connected to the outside of the insertion rod 22. The stable connection at both ends of the spring 23 can reduce damage to equipment parts, extend the service life of the equipment, and make it more stable during the stretching process.

[0036] Reference Figures 1-4The latching mechanism includes a plug-in assembly and a fixing assembly. The plug-in assembly includes a housing 8, which is fixedly connected to the outside of the lower housing 1 to protect internal parts from damage. A pin 14 is slidably connected inside the housing 8 to facilitate switching the device on and off. A pull ring 13 is fixedly connected to the outside of the pin 14 for easy pulling by the operator. A limit block 16 is fixedly connected to the outside of the pin 14 to prevent the pin 14 from being pulled out during the pulling process. A spring 15 is sleeved on the outside of the pin 14, which allows the pin 14 to quickly return to its original position through the elastic action of the spring 15. The fixing assembly includes a plug plate 9, which is fixedly connected to the outside of the upper housing 2. A slot 17 is opened inside the plug plate 9 to facilitate the insertion of the pin 14 into the slot 17 to fix the device. The pin 14 and the slot 17 are interlocked. A rubber pad 4 is fixedly connected to the outside of the clamping plate 3 to clamp the cable more tightly. Hinges 12 are fixedly connected to the outside of both the lower housing 1 and the upper housing 2 to facilitate the opening and closing of the upper housing 2.

[0037] Working principle: First, when the cable is threaded through the equipment, the cable thickness varies due to different cable types. Therefore, through the elastic action of spring 21, the pulley 6 will move the fixed rod 19 inside the pulley 6 as it is squeezed by the cable. Subsequently, the slider 18, which is fixedly connected to the fixed rod 19, will move on the groove 20 inside the fixed block 7 and squeeze spring 21. While adapting to cables of different thicknesses, the sliding of the pulley 6 can reduce the friction of the cable during transmission and reduce damage to the cable.

[0038] Secondly, when it is necessary to control the cable, the handle 5 can be lifted. Then, due to the elasticity of the spring 23, the plug rod 22 will squeeze the spring 23 and move through the sliding hole 10 opened inside the support column 11. At this time, the cable can slide freely inside the equipment. When it slides to the desired position, the cable needs to be fixed. At this time, release the hand that pulled the handle 5, and the spring 23 will automatically return to the center and firmly press the cable. The rubber pad 4 on the outside of the clamp 3 will increase the friction on the cable sheath, making the cable more stable and preventing it from moving at will.

[0039] 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. An electrical cable pig, comprising a lower shell (1), characterised in that: The lower shell (1) is equipped with a buckling mechanism on the outside, and the upper shell (2) is installed on the lower shell (1) through the buckling mechanism. The upper shell (2) is equipped with a pressing mechanism inside, and the lower shell (1) is equipped with a damage reduction mechanism inside. The damage reduction mechanism includes a sliding component and a telescopic component. The sliding component includes a fixed block (7), which is fixedly connected to the inner side of the lower shell (1). A slider (18) is slidably connected inside the fixed block (7). A fixed rod (19) is fixedly connected in the middle of the slider (18). A pulley (6) is rotatably connected to the outside of the fixed rod (19).

2. An electrical cable auxiliary pull-through according to claim 1, characterised in that: The telescopic component includes a second spring (21), which is fixedly connected inside the fixed block (7). The fixed block (7) has a groove (20) inside. The second spring (21) is fixedly connected to the slider (18), and the slider (18) is slidably connected to the outside of the groove (20).

3. An electrical cable auxiliary pull-through according to claim 1, characterised in that: The clamping mechanism includes a lifting component and a stabilizing component. The lifting component includes a handle (5), which is slidably connected to the middle of the upper shell (2). A clamping plate (3) is fixedly connected to the outside of the handle (5).

4. An electrical cable auxiliary pull-through according to claim 3, characterised in that: The stabilizing component includes a support column (11), which is fixedly connected to the inner side of the upper shell (2). A sliding hole (10) is provided inside the support column (11), and a spring three (23) is fixedly connected inside the sliding hole (10). A plug rod (22) is fixedly connected to the outside of the clamping plate (3). The plug rod (22) is slidably connected inside the sliding hole (10), and the spring three (23) is fixedly connected to the outside of the plug rod (22).

5. The power cable auxiliary conduit installation device according to claim 1, characterized in that: The latching mechanism includes a plug-in assembly and a fixing assembly. The plug-in assembly includes a housing (8), which is fixedly connected to the outside of the lower housing (1). A pin (14) is slidably connected inside the housing (8). A pull ring (13) is fixedly connected to the outside of the pin (14). A limit block (16) is fixedly connected to the outside of the pin (14). A spring (15) is sleeved on the outside of the pin (14).

6. An electrical cable auxiliary pull-through according to claim 5, characterised in that: The fixing component includes a plug plate (9), which is fixedly connected to the outside of the upper shell (2). A slot (17) is provided inside the plug plate (9), and the pin (14) engages with the slot (17).

7. An electrical cable auxiliary pull-through according to claim 4, characterised in that: A rubber pad (4) is fixedly connected to the outside of the clamp (3).

8. An electrical cable assist-through-puller according to claim 1, characterized in that: Both the lower shell (1) and the upper shell (2) are fixedly connected to hinges (12).