Hand-held cable terminal head electric stripping device

Abstract

A top plate is connected to the upper end of a wire stripping base through a guide rod, an upper clamping head and a lower clamping head are of the same structure and are symmetrically installed between the top plate and the wire stripping base in a sliding mode through cooperation of through holes and the guide rod, and an upper screw is rotationally arranged in the middle of the upper clamping head in a threaded and penetrating mode; the upper screw and the lower screw are concentrically and fixedly connected, the thread directions of the outer surfaces of the upper screw and the lower screw are opposite, the upper end of the upper screw is rotationally sleeved with the top plate, the lower end of the lower screw is rotationally sleeved with the wire stripping base, the limiting tool rest is located on the left side of the upper chuck, and an adjusting screw rotationally penetrates through the rear end of the upper surface of the limiting tool rest; the blade is vertically installed in the U-shaped structure of the limiting knife rest in a sliding mode, the vertical position of the blade is adjusted through the adjusting screw rod, the adapter plate is fixedly arranged on the left side of the wire stripping base, the installation pipe is connected with the adapter plate, and the other end of the installation pipe is connected with the electric handle through the fixing head; the device has the advantages of being safe and convenient to use, time-saving and efficient.

Description

Technical Field

[0001] This invention belongs to the field of auxiliary tooling for power grid maintenance, and specifically relates to a handheld electric stripping device for cable terminals. Background Technology

[0002] The power distribution network consists of overhead lines, cables, towers, distribution transformers, disconnect switches, reactive power compensators, and some auxiliary facilities. It plays a crucial role in distributing electrical energy within the power grid. Distribution network operations are characterized by numerous points of contact and wide coverage, making safety risk management difficult. Safety is a perpetual theme for power companies. Although power safety accidents have significantly decreased in recent years, the increase in live-line work and the rise in operating voltage levels mean that the safety situation for power companies remains severe. Live-line connection of lead wires is the most prevalent type of live-line work in distribution networks. Currently, when installing lead wire clamps, only manual equipment can be used to strip the insulation from the cable ends. This process is cumbersome, time-consuming, and labor-intensive, severely depleting the physical strength of workers. Therefore, it is essential to develop a system to effectively reduce the operational difficulty and workload of live-line workers. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a safe, convenient, time-saving and efficient handheld electric stripping device for cable terminals.

[0004] The objective of this invention is achieved as follows: A handheld electric cable terminal stripping device includes a stripping assembly, an installation tube, and an electric handle. The stripping assembly consists of a stripping base, an upper clamp, a lower clamp, a limiting blade holder, a blade, and an adapter plate. Guide rods are vertically fixed at both the front and rear ends of the upper surface of the stripping base, and a top plate is fixedly connected to the guide rods. A rotating shaft a is vertically rotatably inserted at the center of the connection between the upper surface of the stripping base and the two guide rods, and a rotating shaft b is vertically rotatably inserted at the center of the connection between the lower surface of the top plate and the two guide rods. The upper and lower clamps have identical structures, each consisting of a longitudinal connecting part and a V-shaped clamping part. Both ends of the connecting part have through holes that mate with the guide rod structure. The sliding engagement of the through holes with the guide rods allows for symmetrical sliding installation of the upper and lower clamps between the top plate and the stripping base. Furthermore, an upper screw is vertically threaded through the middle of the connecting part of the upper clamp, and the lower clamp… A lower screw is vertically threaded through the middle of the connecting part, and the upper screw and the lower screw are concentrically fixed, with opposite thread directions on their outer surfaces. The upper end of the upper screw is concentrically fixed to the rotating shaft b, and the lower end of the lower screw is concentrically fixed to the rotating shaft a. The limiting tool holder has an inverted U-shaped structure and is fixedly mounted on the left side of the upper chuck. An adjusting screw is threaded through the rear end of its upper surface. The blade is vertically slidably installed inside the U-shaped structure of the limiting tool holder. It is inclined and its height gradually increases from front to back. The front end of the blade is provided with a circumferential cutting edge, and the rear end is vertically rotatably connected to an intermediate shaft. The intermediate shaft is concentrically fixed to the lower end of the adjusting screw. The adapter plate is located on the left side of the wire stripping base. Its lower end is vertically fixed to the wire stripping base, and a connecting tube is horizontally fixed through the middle of its upper end. One end of the mounting tube is fixedly connected to the connecting tube by a bolt, and the other end is fixedly connected to the output end of the electric handle by a fixing head.

[0005] Furthermore, an auxiliary adjustment ring is fixedly provided below the rotating shaft a.

[0006] Furthermore, the inner wall of the V-shaped clamping part is fixedly provided with strip-shaped anti-slip protrusions.

[0007] Furthermore, the upper end of the adjusting screw is located above the limiting tool holder and is concentrically fixed with a rotating screw head.

[0008] The beneficial effects of this invention are as follows: This invention, by setting up a stripping base, a top plate, a rotating shaft a, a rotating shaft b, an upper screw, a lower screw, a guide rod, an upper clamp, and a lower clamp, allows for the rotation of the lower screw, the upper screw, and the rotating shaft b by rotating the rotating shaft a. The design of opposite thread directions on the outer surfaces of the upper and lower screws, the threaded rotational engagement between the upper screw and the upper clamp, the threaded rotational engagement between the lower screw and the lower clamp, and the vertical sliding connection between the upper and lower clamps and the guide rod, allows the upper and lower clamps to move vertically inward (or outward) simultaneously while the upper and lower screws rotate. This vertical movement of the upper and lower clamps enables the entire invention to be clamped (or loosened) on the outside of the cable end to be stripped. This structure makes this invention suitable for stripping cables of different diameters, increasing its applicability. This invention utilizes a limiting blade holder and an adjusting screw, along with a threaded rotational connection between the adjusting screw and the limiting blade holder, and a vertical sliding connection between the blade and the limiting blade holder. In use, the adjusting screw can be rotated by external force, allowing for vertical movement. This vertical movement of the adjusting screw, via an intermediate shaft, adjusts the vertical position of the blade. This structure allows for blade position adjustment based on the thickness of the insulation layer on the cable to be stripped, increasing its versatility. Furthermore, the invention incorporates an adapter plate, connecting tube, and fixing head. Their cooperation enables a limiting connection between the electric handle and the stripping assembly via the mounting tube. The electric handle, in use, drives the mounting tube and the stripping assembly to rotate. This rotation of the stripping assembly, through the annular blade, performs a circumferential stripping operation on the cable end clamped between the upper and lower clamps. Overall, this invention offers the advantages of safe, convenient, time-saving, and efficient use. Attached Figure Description

[0009] Figure 1 This is a front view of the present invention.

[0010] Figure 2 This is a three-dimensional structural diagram of the peeling component in this invention.

[0011] Figure 3 This is a front view of the peeling component in this invention.

[0012] Figure 4 This is a side view of the connection between the wire stripping base, upper clamp, lower clamp and top plate in this invention.

[0013] Figure 5 This is a three-dimensional structural diagram of the adapter plate in this invention.

[0014] Figure 6 This is a three-dimensional structural diagram of the lower chuck in this invention.

[0015] Figure 7 This is a front view of the blade in this invention.

[0016] Figure 8 This is a three-dimensional structural diagram of the blade in this invention.

[0017] In the diagram: 1. Stripping assembly 11. Stripping base 111. Rotating shaft a 112. Auxiliary adjusting ring 12. Upper chuck 13. Lower chuck 131. Connecting part 132. Clamping part 133. Anti-slip protrusion 14. Limiting blade holder 15. Blade 151. Annular blade edge 16. Adapter plate 161. Connecting pipe 17. Guide rod 18. Top plate 181. Rotating shaft b 19. Adjusting screw 2. Mounting pipe 3. Electric handle 4. Upper screw 5. Lower screw 6. Fixing head. Detailed Implementation

[0018] The present invention will now be further described with reference to the accompanying drawings.

[0019] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, a handheld electric cable terminal stripping device includes a stripping assembly 1, a mounting tube 2, and an electric handle 3. The stripping assembly 1 consists of a stripping base 11, an upper clamp 12, a lower clamp 13, a limiting blade holder 14, a blade 15, and an adapter plate 16. Guide rods 17 are vertically fixed at both the front and rear ends of the upper surface of the stripping base 11, and a top plate 18 is fixedly connected to the guide rods 17. A rotating shaft a111 is vertically rotatably inserted through the middle of the connection between the upper surface of the stripping base 11 and the two guide rods 17. The lower surface of the top plate 18 is connected to the two guide rods 17. A rotating shaft b181 is vertically rotatably inserted through the middle of the connection point of the guide rod 17; the upper chuck 12 and the lower chuck 13 have the same structure, both consisting of a longitudinal connecting part 131 and a V-shaped clamping part 132. Both ends of the connecting part 131 are provided with through holes that mate with the structure of the guide rod 17. Through the sliding engagement of the through holes with the guide rod 17, the upper chuck 12 and the lower chuck 13 are symmetrically slidably installed between the top plate 18 and the wire stripping base 11. Furthermore, an upper screw 4 is vertically threaded through the middle of the connecting part 131 of the upper chuck 12. A lower screw 5 is vertically threaded through the middle of the connecting part 131 of the lower chuck 13. The upper screw 4 and the lower screw 5 are concentrically fixed, and their outer threads are opposite in direction. The upper end of the upper screw 4 is concentrically fixed to the rotating shaft b181, and the lower end of the lower screw 5 is concentrically fixed to the rotating shaft a111. The limiting tool holder 14 has an inverted U-shaped structure and is fixedly set on the left side of the upper chuck 12. An adjusting screw 19 is threaded through the rear end of its upper surface. The blade 15 is vertically slidably mounted on the U-shaped limiting tool holder 14. The internal structure is inclined, with its height gradually increasing from front to back. The front end of the blade 15 is provided with a ring cutting edge 151, and the rear end is vertically rotatably connected to an intermediate shaft. The intermediate shaft is concentrically fixedly connected to the lower end of the adjusting screw 19. The adapter plate 16 is located on the left side of the wire stripping base 11. Its lower end is vertically fixedly connected to the wire stripping base 11, and the middle of its upper end is horizontally fixedly provided with a connecting tube 161. One end of the mounting tube 2 is limited and sleeved with the connecting tube 161 by bolts, and the other end is fixedly connected to the output end of the electric handle 3 by the fixing head 6.

[0020] An auxiliary adjustment ring 112 is fixedly installed below the rotating shaft a111, which can increase the convenience of rotating the shaft a111. The inner wall of the clamping part 132 V-shaped structure is fixedly provided with strip-shaped anti-slip protrusions 133. The upper end of the adjusting screw 19 is located above the limiting tool holder 14 and is concentrically fixedly connected to a rotating screw head.

[0021] In use, this invention first establishes a limiting connection between the mounting tube 2 and the output end of the electric handle 3 using the fixing head 6. Then, the bolts are used to achieve a concentric connection between the mounting tube 2 and the connecting tube 161, thus completing the assembly of the electric handle 3, mounting tube 2, and stripping assembly 1. Next, the position of the blade 15 is adjusted according to the thickness of the insulation layer on the surface of the cable to be stripped. Specifically, the adjusting screw 19 is rotated by external force. At this time, the threaded rotation connection between the adjusting screw 19 and the limiting blade holder 14, and the vertical sliding connection between the blade 15 and the limiting blade holder 14, allow the vertical movement of the adjusting screw 19 body, intermediate shaft, and blade 15 simultaneously, thereby adjusting the position of the blade 15. This structure allows for adjustment of the blade 15's position based on the thickness of the insulation layer on the surface of the cable to be stripped, increasing its applicability. Finally, the end of the cable to be stripped is inserted into the V-shaped clamping part 132 of the upper clamp 12 and the lower clamp 13. The V-shaped clamping part 132 is engaged within the clamping and limiting gap formed by the clamping and limiting gap. Then, by external force, the auxiliary adjusting ring 112 is rotated clockwise. At this time, the rotation of the auxiliary adjusting ring 112 drives the rotating shaft a111, lower screw 5, upper screw 4, and rotating shaft b181 to rotate together. Thus, by utilizing the design of the opposite thread directions on the outer surfaces of the upper screw 4 and lower screw 5, the threaded rotational engagement between the upper screw 4 and upper chuck 12, the threaded rotational engagement between the lower screw 5 and lower chuck 13, and the vertical sliding connection between the upper chuck 12 and lower chuck 13 and the guide rod 17, the upper screw 4 and lower screw 5 can rotate clockwise while simultaneously driving the upper chuck 12 and lower chuck 13 to move vertically inward. As the upper chuck 12 and lower chuck 13 move vertically inward, their engagement achieves the clamping and limiting of the cable to be stripped, thereby completing the process. The stripping assembly 1 is installed on the outside of the cable to be stripped. Finally, the electric handle 3 is turned on, and the driving force of the electric handle 3 rotates the mounting tube 2 and the stripping assembly 1. This rotation of the stripping assembly 1, through the annular blade 151, performs a circumferential stripping operation on the cable end that is clamped between the upper clamp 12 and the lower clamp 13. After stripping is complete, the electric handle 3 is reversed, causing the entire invention to reset. Simultaneously, the auxiliary adjusting ring 112 is rotated counterclockwise, releasing the upper clamp 12 and lower clamp 13 from the cable, allowing the entire invention to be removed from the outside of the cable. This structure increases the safety of maintenance personnel while effectively reducing operational difficulty and physical exertion, thus improving maintenance efficiency. Overall, this invention has the advantages of being safe, convenient, time-saving, and efficient.

[0022] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A handheld electric stripping device for cable terminals, comprising a stripping assembly (1), a mounting tube (2), and an electric handle (3), characterized in that: The stripping assembly (1) consists of a stripping base (11), an upper chuck (12), a lower chuck (13), a limiting blade holder (14), a blade (15), and an adapter plate (16). Guide rods (17) are vertically fixed at both the front and rear ends of the upper surface of the stripping base (11), and a top plate (18) is fixedly connected to the guide rods (17). A rotating shaft a (111) is vertically rotatably inserted at the center of the connection between the upper surface of the stripping base (11) and the two guide rods (17). A rotating shaft b (181) is vertically rotatably inserted at the center of the connection between the lower surface of the top plate (18) and the two guide rods (17). The upper chuck (12) and the lower chuck (13) have the same structure, both consisting of a longitudinal connecting part (131) and a V-shaped clamping part (132). Both ends of the connecting part (131) are provided with through holes that cooperate with the guide rod (17). Through the sliding cooperation of the through holes with the guide rod (17), the upper chuck (12) and the lower chuck (13) are symmetrically slidably installed between the top plate (18) and the wire stripping base (11). Furthermore, the upper screw (4) is vertically threaded through the middle position of the connecting part (131) of the upper chuck (12), and the connecting part (132) of the lower chuck (13)... The lower screw (5) is vertically threaded through the middle position of the upper screw (4) and the lower screw (5), and the threads on the outer surfaces are opposite. The upper end of the upper screw (4) is concentrically fixed to the rotating shaft b (181), and the lower end of the lower screw (5) is concentrically fixed to the rotating shaft a (111). The limiting tool holder (14) is an inverted U-shaped structure and is fixedly set on the left side of the upper chuck (12). The rear end of its upper surface is threaded through the adjusting screw (19). The blade (15) is vertically slidably installed inside the U-shaped structure of the limiting tool holder (14). The part is inclined in shape, and its height gradually increases from front to back. The front end of the blade (15) is provided with a ring cutting edge (151), and the rear end is vertically rotatably connected to the intermediate shaft. The intermediate shaft is concentrically fixedly connected to the lower end of the adjusting screw (19). The adapter plate (16) is located on the left side of the wire stripping base (11). Its lower end is vertically fixedly connected to the wire stripping base (11), and the middle part of its upper end is horizontally fixedly provided with a connecting tube (161). One end of the mounting tube (2) is limited and sleeved with the connecting tube (161) by bolts, and the other end is fixedly connected to the output end of the electric handle (3) by the fixing head (6).

2. The handheld electric stripping device for cable terminals as described in claim 1, characterized in that: An auxiliary adjustment ring (112) is fixedly installed below the rotating shaft a (111).

3. The handheld electric stripping device for cable terminals as described in claim 1, characterized in that: The inner wall of the V-shaped structure of the clamping part (132) is fixedly provided with strip-shaped anti-slip protrusions (133).

4. The handheld electric stripping device for cable terminals as described in claim 1, characterized in that: The upper end of the adjusting screw (19) is located above the limiting tool holder (14) and is concentrically fixed with a rotating screw head.

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