Wire stripping device for thermal power overhaul
By designing a portable wire stripping device for thermal power plant maintenance, which adopts a clamp and blade structure, the problem of the inconvenience of carrying existing devices is solved, and efficient and safe cable stripping and end stripping operations are achieved. It is suitable for cables of various specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ENERGY ENG GRP SHANXI ELECTRIC ELECTRIC POWER CONSTR NO 1 CO
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-26
AI Technical Summary
Existing wire stripping devices for thermal power plant maintenance are large and heavy, making them inconvenient to carry. Traditional wire stripping methods are inefficient and unsafe, and can easily lead to personal injury.
A wire stripping device comprising a lower clamp, an upper clamp, a hinge, and a large spring has been designed. It is equipped with multiple stripping grooves and blades of progressively smaller size for longitudinal and transverse wire stripping. Combined with a plug and a spring pin, it enables convenient clamping and safe carrying.
It enables portable, safe, and efficient cable stripping and end-stripping operations, is applicable to various cable specifications, and reduces the risk of personal injury.
Smart Images

Figure CN224418309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power maintenance tools, specifically a wire stripping device for thermal power plant maintenance. Background Technology
[0002] Thermal power plant maintenance refers to the regular or irregular inspection, maintenance and repair of equipment in thermal power plants to ensure their normal operation and efficient work. During thermal power plant maintenance, good wire connections are the key to ensuring the normal operation of the equipment. Stripping the wires makes the metal conductors more clearly visible, which facilitates precise connection and debugging, thereby improving the quality of maintenance.
[0003] However, most existing wire stripping devices are large and heavy, making them inconvenient for personnel to carry during thermal power plant maintenance. To make them easier to carry, thermal power plant maintenance personnel usually use ordinary knives to cut open the cable sheath or use a lighter to melt the cable sheath before pulling it off by hand. This method of stripping is not only inefficient but also unsafe. Cutting with a knife can easily cause personnel to cut their fingers, while burning can easily cause a fire. Therefore, we have designed a wire stripping device for thermal power plant maintenance to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a wire stripping device for thermal power plant maintenance, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A wire stripping device for thermal power plant maintenance includes a lower clamping plate, an upper clamping plate, and a hinge. A hinge is provided between one end of the upper clamping plate and one end of the lower clamping plate, and the upper and lower clamping plates are hinged together. A large spring is provided between the upper and lower clamping plates, with both ends of the large spring fixed to the upper and lower clamping plates respectively. A first stripping groove, a second stripping groove, a third stripping groove, a fourth stripping groove, and a fifth stripping groove are sequentially formed on the upper surface of the upper clamping plate and the lower surface of the lower clamping plate. The opening size of the five stripping grooves gradually decreases. The first, third, and fifth stripping grooves on the upper clamping plate are respectively equipped with a first horizontal blade, a second horizontal blade, and a third horizontal blade. The second and fourth stripping grooves on the upper and lower clamping plates are respectively equipped with a first vertical blade and a second vertical blade. A plug is installed at the lower part of the lower clamping plate away from the hinge. A spring pin is installed on the side of the plug. A slot adapted to the plug is opened on the lower clamping plate. A pin hole adapted to the spring pin is opened on one side of the slot.
[0007] As a further embodiment of this utility model: a limiting member is provided on the lower clamping plate, and the two ends of the limiting member are fixed to the two sides of the lower clamping plate by screws.
[0008] As a further improvement of this utility model, the height of the exposed portions of the first, second, and third transverse blades in the wire stripping groove gradually decreases.
[0009] As a further improvement of this utility model, the height of the exposed portions of the first and second longitudinal blades in the wire stripping groove gradually decreases.
[0010] As a further embodiment of this utility model: the elastic pin includes a pin head, a small spring, a limiting groove, and a limiting head. The pin head is disposed in the mounting groove opened on the plug, and the pin head is fixedly connected to the small spring installed in the mounting groove.
[0011] As a further improvement of this utility model: limiting heads are installed on both sides of the pin head, and the limiting heads are slidably connected to the limiting grooves opened on the inner walls of both sides of the pin hole.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model, through the cooperation of a lower clamping plate, an upper clamping plate, a hinge, and a large spring, allows maintenance personnel to easily hold the cable with a handheld device. During the clamping process, the longitudinal blades installed on both the lower and upper clamping plates can longitudinally slice the cable sheath, making it easy for personnel to strip the cable sheath. During the clamping process, the transverse blade installed on the upper clamping plate can transversely cut the cable sheath. Then, rotating the cable can achieve a circular cut, making it easy for personnel to remove the cable end. This utility model has a simple structure and is easy to use. It can be used not only for vertical stripping of cables but also for removing cable ends, meeting different needs.
[0014] 2. By opening a first stripping groove, a second stripping groove, a third stripping groove, a fourth stripping groove, and a fifth stripping groove with sizes decreasing from large to small, this utility model can well adapt to cables of different specifications, enabling the device to strip cables of various specifications. This makes the utility model more widely applicable and more practical.
[0015] 3. By setting a plug, slot and elastic pin, this utility model can close the upper and lower clamps of the device when it is not in use, to prevent the device from squeezing and pinching the person's clothing or skin during the carrying process, which would cause damage to the person's clothing or injury, thus improving the safety of carrying. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a wire stripping device for thermal power plant maintenance.
[0017] Figure 2 This is a front sectional view of a wire stripping device used for maintenance of thermal power plants.
[0018] Figure 3 A wire stripping device for thermal power plant maintenance Figure 2 Enlarged view of the structure at point A in the middle.
[0019] 1. Lower clamping plate; 2. Upper clamping plate; 3. Hinge; 4. Large spring; 5. First stripping groove; 6. Second stripping groove; 7. Third stripping groove; 8. Fourth stripping groove; 9. Fifth stripping groove; 10. First horizontal blade; 11. Second horizontal blade; 12. Third horizontal blade; 13. First vertical blade; 14. Second vertical blade; 15. Limiting component; 16. Screw; 17. Plug; 18. Slot; 19. Spring pin; 20. Pin hole; 21. Pin head; 22. Mounting slot; 23. Spring; 24. Limiting groove; 25. Limiting head. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-2 In this embodiment of the utility model, a wire stripping device for thermal power plant maintenance includes a lower clamping plate 1, an upper clamping plate 2, and a hinge 3. A hinge 3 is provided between one end of the upper clamping plate 2 and one end of the lower clamping plate 1, and the upper clamping plate 2 and the lower clamping plate 1 are hinged together by the hinge 3. A large spring 4 is provided between the upper clamping plate 2 and the lower clamping plate 1, with both ends of the large spring 4 fixed to the upper clamping plate 2 and the lower clamping plate 1 respectively. A first stripping groove 5, a second stripping groove 6, a third stripping groove 7, a fourth stripping groove 8, and a fifth stripping groove are sequentially formed on the upper surface of the upper clamping plate 2 and the lower surface of the lower clamping plate 1. The opening sizes of the first stripping groove 5, the second stripping groove 6, the third stripping groove 7, the fourth stripping groove 8, and the fifth stripping groove 9 gradually decrease. The first stripping groove 5, the third stripping groove 7, and the fifth stripping groove 9 on the upper clamping plate 2 are respectively equipped with a first horizontal blade 10, a second horizontal blade 11, and a third horizontal blade 12. The second stripping groove 6 and the fourth stripping groove 8 on the upper clamping plate 2 and the lower clamping plate 1 are respectively equipped with a first vertical blade 13 and a second vertical blade 14. A plug 17 is installed at the lower part of the lower clamping plate 1 away from the hinge 3.
[0022] A limiting member 15 is provided on the lower clamping plate 1. The two ends of the limiting member 15 are fixed to the two sides of the lower clamping plate 1 by screws 16. The limiting member 15 is used to limit the opening and closing angle of the upper clamping plate 2 and the lower clamping plate 1 to prevent the internal blade from scratching the personnel's clothing or skin due to excessive opening and closing angle.
[0023] The height of the exposed portions of the first horizontal blade 10, the second horizontal blade 11, and the third horizontal blade 12 gradually decreases within the wire stripping groove. The height of the exposed portions of the first vertical blade 13 and the second vertical blade 14 gradually decreases within the wire stripping groove. This design is intended to adapt to wire stripping grooves of different sizes, thereby cutting cable sheaths of different thicknesses. The thickness of the cable sheath is usually positively correlated with the diameter of the cable.
[0024] Please see Figures 2-3 A spring pin 19 is installed on the side of the plug 17. A slot 18 adapted to the plug 17 is provided on the lower clamping plate 1. A pin hole 20 adapted to the spring pin 19 is provided on one side of the slot 18. The spring pin 19 includes a pin head 21, a small spring 23, a limiting groove 24 and a limiting head 25. The pin head 21 is set in the mounting groove 22 opened on the plug 17. The pin head 21 is fixedly connected to the small spring 23 installed in the mounting groove 22. Limiting heads 25 are installed on both sides of the pin head 21. The limiting heads 25 are slidably connected to the limiting grooves 24 opened on the inner walls of the pin hole 20 on both sides. The cooperation between the limiting heads 25 and the limiting grooves 24 can make the pin head 21 move more smoothly and prevent it from deviating and getting stuck.
[0025] It should be noted that the first stripping groove 5, the second stripping groove 6, the third stripping groove 7, the fourth stripping groove 8, and the fifth stripping groove 9 are all quarter-circle grooves. This allows each stripping groove to accommodate the stripping needs of cables within a certain diameter range.
[0026] The working principle of this utility model is as follows: When it is necessary to strip the insulation or cut the end of the cable during the maintenance of a thermal power plant, the operator first holds the upper clamp 2 and the lower clamp 1 with one hand, and presses the elastic pin 19 with the other hand. At this time, the upper clamp 2 and the lower clamp 1 will unfold under the action of the restoring force of the large spring 4. When it is necessary to strip the insulation, simply place the cable end into the second stripping groove 6 or the fourth stripping groove 8 that matches it. Then, the operator presses the upper clamp 2 and the lower clamp 1 with force, and the upper clamp 2 and the lower clamp 1 move towards the middle at the same time. Utilizing the first longitudinal blade 13 in the second stripping groove 6 or the first longitudinal blade 13 in the fourth stripping groove 8... The second vertical blade 14 can cut open the cable sheath. Then, release the device to quickly strip off the cable sheath. When it is necessary to strip the end, simply place the cable end into the first stripping groove 5, the third stripping groove 7, or the fifth stripping groove 9 that are compatible with it. Then, the person presses the upper clamp 2 and the lower clamp 1 with their palm. The first horizontal blade 10 in the first stripping groove 5, the second horizontal blade 11 in the third stripping groove 7, or the third horizontal blade 13 in the fifth stripping groove 9 can cut the cable end horizontally. Then, rotate the cable one revolution to cut the cable end in a ring. Then, release the device to quickly strip off the cable end.
[0027] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A wire stripping device for thermal power plant maintenance, comprising a lower clamping plate (1), an upper clamping plate (2), and a hinge (3), characterized in that: A hinge (3) is provided between one end of the upper clamping plate (2) and one end of the lower clamping plate (1), and the upper clamping plate (2) and the lower clamping plate (1) are hinged by the hinge (3). A large spring (4) is provided between the upper clamping plate (2) and the lower clamping plate (1), and the two ends of the large spring (4) are fixed to the upper clamping plate (2) and the lower clamping plate (1) respectively. The upper plate surface of the upper clamping plate (2) and the lower plate surface of the lower clamping plate (1) are provided with a first stripping groove (5), a second stripping groove (6), a third stripping groove (7), a fourth stripping groove (8) and a fifth stripping groove (9) in sequence. The groove opening size of the first stripping groove (5), the second stripping groove (6), the third stripping groove (7), the fourth stripping groove (8) and the fifth stripping groove (9) gradually decreases. (2) The first stripping groove (5), the third stripping groove (7) and the fifth stripping groove (9) are respectively equipped with a first horizontal blade (10), a second horizontal blade (11) and a third horizontal blade (12). The second stripping groove (6) and the fourth stripping groove (8) on the upper clamping plate (2) and the lower clamping plate (1) are respectively equipped with a first vertical blade (13) and a second vertical blade (14). A plug (17) is installed at the lower part of the lower clamping plate (1) away from the hinge (3). An elastic pin (19) is installed on the side of the plug (17). A slot (18) adapted to the plug (17) is opened on the lower clamping plate (1). A pin hole (20) adapted to the elastic pin (19) is opened on one side of the slot (18).
2. The wire stripping device for thermal power plant maintenance according to claim 1, characterized in that: The lower clamping plate (1) is provided with a limiting member (15), and the two ends of the limiting member (15) are fixed to the two sides of the lower clamping plate (1) by screws (16).
3. A wire stripping device for thermal power plant maintenance according to claim 1, characterized in that: The height of the exposed portions of the first horizontal blade (10), the second horizontal blade (11), and the third horizontal blade (12) in the wire stripping groove gradually decreases.
4. A wire stripping device for thermal power plant maintenance according to claim 1, characterized in that: The height of the first longitudinal blade (13) and the second longitudinal blade (14) protruding from the wire stripping groove gradually decreases.
5. A wire stripping device for thermal power plant maintenance according to claim 1, characterized in that: The elastic pin (19) includes a pin head (21), a small spring (23), a limiting groove (24) and a limiting head (25). The pin head (21) is disposed in the mounting groove (22) opened on the plug (17), and the pin head (21) is fixedly connected to the small spring (23) installed in the mounting groove (22).
6. A wire stripping device for thermal power plant maintenance according to claim 5, characterized in that: Limiting heads (25) are installed on both sides of the pin (21), and the limiting heads (25) are slidably connected to the limiting grooves (24) opened on both sides of the pin hole (20).