Self-adapting hand stripper for insulated wires

Abstract

This invention discloses a special adaptive manual wire stripper, comprising a left clamp, a right clamp, a lead screw, a blade adjusting frame, a blade adjusting slider, a blade holder, a blade, a blade adjusting knob, a long handle, and a short handle. The left and right clamps are arranged side by side, with a bracket provided at the rear opening between them. The lead screw is positioned between the left and right clamps. The left clamp has a vertically axially hollow hole, and the blade adjusting frame is installed within this hole. The blade holder is located at the upper end of the adjusting frame. The blade is fixed within the blade holder by a blade fixing bolt. This invention's special adaptive manual wire stripper is suitable for stripping the insulation layer of insulated wires of 20kV and below with an outer diameter of 13mm to 38mm. It can adaptively adjust the blade feed size according to different outer diameters of insulated wires, enabling reliable and rapid stripping of the insulation layer.

Description

Technical Field

[0001] This invention relates to an adaptive manual wire stripper specifically for insulated wires. Background Technology

[0002] The current method of stripping insulation from insulated wires is time-consuming and labor-intensive. Existing tools or methods for stripping insulation from wires can easily scratch operators, damage the conductors of insulated wires, and result in incomplete insulation removal and low work efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a special adaptive manual stripper for insulated wires. It is suitable for stripping the insulation layer of insulated wires of 20kV and below with an outer diameter of 13mm to 38mm. It can adaptively adjust the feed size according to the insulated wires of different outer diameters, and can reliably and quickly strip the insulation layer of insulated wires.

[0004] The technical solution to achieve the above objective is: a special adaptive manual wire stripper, comprising a left end clamp, a right end clamp, a lead screw, a blade adjusting lifting frame, a blade adjusting slider, a blade holder, a blade, a blade adjusting knob, a long handle, and a short handle, wherein:

[0005] The left-end clamp and the right-end clamp are arranged one on the left and one on the right, and a bracket is provided in the rear opening between the left-end clamp and the right-end clamp;

[0006] The lead screw is positioned between the left end clamp and the right end clamp. One end of the lead screw has a right-hand thread, which passes through the left end clamp and connects to a copper sleeve. The other end of the lead screw has a left-hand thread, which passes through the right end clamp and connects to a copper sleeve. When the lead screw rotates, the left end clamp and the right end clamp perform radial linear movements in the same direction or in opposite directions.

[0007] The left end clamp has a vertically formed axial hollow hole, and the tool adjusting lifting frame is installed in the axial hollow hole. The tool adjusting lifting frame is located in front of the lead screw. The tool adjusting slider passes through the tool adjusting lifting frame laterally. A needle roller bearing is arranged longitudinally inside the tool adjusting lifting frame. The needle roller bearing is tangent to the tool adjusting slider. A bearing pin is arranged inside the needle roller bearing, and the needle roller bearing moves in a circular motion along the bearing pin.

[0008] A first spring is vertically installed inside the tool adjusting lifting frame, and the first spring is located below the tool adjusting slider; a spring pressure cover plate is provided at the bottom end of the tool adjusting lifting frame, and the spring pressure cover plate is connected to the bottom end of the first spring by fastening bolts.

[0009] The tool holder is located at the upper end of the tool adjusting lifting frame; the blade is fixed inside the tool holder by a blade fixing bolt; tool holder track bolts are symmetrically arranged on the left and right sides of the tool holder;

[0010] A left support side plate is provided on the left side of the left end clamp; the tool adjusting knob is rotatably mounted on the left support side plate, and the tool adjusting knob is threadedly connected to the tool adjusting slider. An axial groove is provided on the outer side wall of the tool adjusting knob, and a handle is provided at the left end of the tool adjusting knob; a steel ball is provided in the axial groove of the tool adjusting knob; a second spring is vertically arranged in the left support side plate; a spring pressing bolt is provided at the top of the left support side plate, one end of the second spring is in contact with the steel ball, and the other end is connected to the spring pressing bolt;

[0011] One end of the long handle is set on the left side plate of the bracket, and the other end is fitted with a handle sleeve.

[0012] The right side of the right end clamp is provided with a right support side plate, and the short handle is rotatably mounted on the right support side plate, and the short handle is connected to the right end of the lead screw by a fastening bolt.

[0013] In the aforementioned adaptive manual wire stripper, the upper end of the left clamp is connected to a blade sheath via a sheath fixing bolt, and the blade is located inside the blade sheath.

[0014] The aforementioned adaptive manual wire stripper for insulated wires includes a long handle mounting hole and a through-hole blade adjustment knob mounting hole on the left side plate of the support. A spring insertion hole is located at the top of the left side plate. One end of the long handle is fixed in the long handle mounting hole. One end of the blade adjustment knob is rotatably mounted in the blade adjustment knob mounting hole. The spring insertion hole communicates with the axial groove of the blade adjustment knob. A second spring is located in the spring insertion hole, and a spring-pressing bolt is fixed to the top of the spring insertion hole.

[0015] In the aforementioned adaptive manual wire stripper, the maximum axial distance of the axial groove of the blade adjustment knob is 2mm.

[0016] The aforementioned adaptive manual wire stripper for insulated wires has a central hole that extends from left to right on the short handle, and a fastening bolt passes through the central hole of the short handle and is connected to the lead screw.

[0017] The aforementioned adaptive manual wire stripper for insulated wires includes a short handle mounting hole on the right bracket side plate, with one end of the short handle rotatably mounted within the short handle mounting hole.

[0018] The aforementioned adaptive manual wire stripper for insulated wires, wherein the fixing blade bolt is an internal hexagonal head bolt.

[0019] The adaptive manual stripper for insulated wires of the present invention is designed for insulated wires of 20kV and below with an outer diameter of 13mm to 38mm. Its unique blade adjustment lifting frame can adaptively adjust the blade feed size according to the insulated wire with different outer diameters, and can reliably and quickly strip the insulation layer of the insulated wire. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the adaptive manual wire stripper for insulated wires of the present invention;

[0021] Figure 2 This is an exploded structural diagram of the adaptive manual wire stripper for insulated wires according to the present invention. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, its specific embodiments are described in detail below with reference to the accompanying drawings:

[0023] Please see Figure 1 and Figure 2 The preferred embodiment of the present invention is an adaptive manual stripper for insulated wires, comprising a left end clamp 11, a right end clamp 15, a lead screw 14, a blade adjusting lifting frame 6, a blade adjusting slider 16, a blade holder 8, a blade 7, a blade adjusting knob 18, a long handle 25, and a short handle 27.

[0024] The left clamp 11 and the right clamp 15 are set on the left and right respectively. A bracket 12 is provided in the rear opening between the left clamp 11 and the right clamp 15. The bracket is the outer frame of this tool and is made of aluminum alloy.

[0025] A lead screw 14 is positioned between a left-end clamp 11 and a right-end clamp 15. One end of the lead screw 14 has a right-hand thread, which passes through the left-end clamp 11 and connects to a copper sleeve 13. The other end of the lead screw 15 has a left-hand thread, which passes through the right-end clamp 15 and connects to the copper sleeve 13. When the lead screw 15 rotates, the left-end clamp 11 and the right-end clamp 15 move radially in the same or opposite directions. The copper sleeve 13 serves as a limit and rolling mechanism.

[0026] The left end clamp 11 has a vertically formed axial hollow hole, and the tool adjusting lifting frame 6 is installed in the axial hollow hole. The tool adjusting lifting frame 6 is located in front of the lead screw 14. The tool adjusting slider 16 extends horizontally through the tool adjusting lifting frame 6. A needle roller bearing 4 is arranged longitudinally inside the tool adjusting lifting frame 6, and the needle roller bearing 4 is tangent to the tool adjusting slider 16. A bearing pin 5 is arranged inside the needle roller bearing 4, and the needle roller bearing 4 moves in a circular motion along the bearing pin 5. When the left end clamp 11 moves radially linearly with the rotation of the lead screw 14, the needle roller bearing 4 on the tool adjusting lifting frame 6 acts on the inclined surface of the tool adjusting slider 16, converting the radial linear motion of the left end clamp 11 into axial linear motion, thereby realizing the raising or lowering of the tool adjusting lifting frame 6.

[0027] A first spring 22 is vertically installed inside the tool adjusting lifting frame 6, located below the tool adjusting slider 16. A spring pressure cover 23 is installed at the bottom of the tool adjusting lifting frame 6, and the spring pressure cover 23 is connected to the bottom of the first spring 22 by a fastening bolt 24. When the tool adjusting lifting frame 6 moves up and down under the action of the tool adjusting slider 16, the first spring 22 plays a role in resetting after rising or falling; the spring pressure cover 23 acts on the first spring 22, playing a limiting role; the fastening bolt 24 is a fastening component, connecting the tool adjusting lifting frame 6 and the spring pressure cover 23.

[0028] The tool holder 8 is located at the upper end of the tool adjusting lifting frame 6, and the tool holder 8 can move up and down linearly with the tool adjusting lifting frame 6; the blade 7 is fixed in the tool holder 8 by the blade fixing bolt 9, which is an internal hexagonal head bolt; the tool holder 8 is symmetrically provided with tool holder track bolts 10 on the left and right sides, and the tool holder track bolts 10 move up and down linearly along the track of the left end clamp 11.

[0029] The upper end of the left end clamp 11 is connected to the blade sleeve 29 by the sleeve fixing bolt 30. The blade 7 is located inside the blade sleeve 29. The sleeve fixing bolt 30 is a fastener, which is an M3X4 internal hex countersunk bolt, to fix the blade sleeve 29 to the left end clamp 11.

[0030] A left support side plate 17 is provided on the left side of the left end clamp 11; a tool adjusting knob 18 is rotatably mounted on the left support side plate 17, and the tool adjusting knob 18 is threadedly connected to the tool adjusting slider 16. An axial groove 181 is provided on the outer wall of the tool adjusting knob 18, and a handle is provided at the left end of the tool adjusting knob 18; a steel ball 19 is provided in the axial groove 181 of the tool adjusting knob 18; a second spring 20 is vertically arranged in the left support side plate 17; a spring pressing bolt 21 is provided at the top of the left support side plate 17, one end of the second spring 20 is in contact with the steel ball 19, and the other end is connected to the spring pressing bolt 21. One end of the long handle 25 is provided on the left support side plate 17, and the other end is fitted with a handle sleeve 26.

[0031] Specifically, the left support side plate 17 has a long handle mounting hole and a through-hole for the tool adjusting knob. A spring insertion hole is located at the top of the left support side plate 17. One end of the long handle 25 is fixed in the long handle mounting hole. One end of the tool adjusting knob 18 is rotatably mounted in the tool adjusting knob mounting hole. The spring insertion hole communicates with the axial groove 181 of the tool adjusting knob. A second spring 20 is located within the spring insertion hole, and a spring-loaded bolt 21 is fixed to the top of the spring insertion hole. The maximum axial distance of the axial groove 181 of the tool adjusting knob 18 is 2mm. The tool adjusting knob 18 and the tool adjusting slider 16 are threaded together. When the tool adjusting knob 18 rotates 180 degrees, the axial movement distance is 2mm. Therefore, the axial movement distance of both the tool adjusting knob 18 and the tool adjusting slider 16 is 2mm.

[0032] The left bracket side plate 17 is made of aluminum alloy and serves as a fastening component. It features 2.5 and 3.4 / 4.3 setting positions on the front, arranged 180° apart. The knife-adjusting knob 18 can be set to 2.5 and 3.4 / 4.3 settings according to the thickness of the insulation layer of different insulated wires, acting as a fine-tuning component for selecting the insulation layer thickness. A steel ball 19 is located within the axial groove 181 of the knife-adjusting knob 18. The steel ball 19 rolls within the axial groove as the knob rotates, serving as a limit and increasing damping. A second spring 20 is located at the other end of the steel ball 19. When the knife-adjusting knob 18 rotates, the steel ball 19 elastically rolls within the axial groove 181 under the spring force of the second spring 20, also serving as a limit and increasing damping. The spring-loaded bolt 21 is an internal hexagonal head bolt used for limiting the tail end of the second spring 20.

[0033] A right support side plate 31 is provided on the right side of the right end clamp 15. A short handle 27 is rotatably mounted on the right support side plate 31, and the short handle 27 is connected to the right end of the lead screw 14 by a fastening bolt 28. Specifically, a short handle mounting hole is provided on the right support side plate 31, and one end of the short handle 27 is rotatably mounted in the short handle mounting hole. A through-hole is provided on the short handle 27, and the fastening bolt 28 passes through the through-hole of the short handle 27 and is connected to the lead screw 14.

[0034] The long handle 25 is the manual gripping component on the left end; the handle sleeve 26 is made of soft rubber and is fitted onto the long handle 25 to increase the friction between the hand and the handle when the stripper rotates. The short handle 27 is made of nylon and is connected to the lead screw 14. A pin plane is provided in the center hole of the short handle 27. When the short handle 27 is rotated, it drives the lead screw 14 to rotate, thereby driving the left end clamp 11 and the right end clamp 15 to perform radial linear motion to achieve the requirement of clamping or releasing the insulated wire.

[0035] Please see again Figure 1The adaptive manual wire stripper of this invention, when in use, involves rotating the short handle 27 clockwise to clamp the insulated wire 100. Then, holding the long handle 25 and the short handle 27, the stripper is rotated clockwise. Depending on the outer diameter of the clamped insulated wire, the left-end clamp 11, the blade adjusting slider 16, and the blade adjusting lifting frame 6 move in tandem, converting axial linear motion into radial linear motion. This causes the blade adjusting lifting frame 6 to rise or fall, which in turn drives the blade holder 8 to rise or fall. Under the guidance of the guide groove in the left-end clamp 11, the blade holder 8 drives the blade 7 to move linearly in both axial and radial directions. This allows the blade 7 to automatically adjust its rise, fall, extension, and retraction based on the outer diameter of the clamped insulated wire. The blade 7 cuts into the insulation layer of the insulated wire and begins to peel it off as the stripper rotates. When the desired length of exposed wire is reached, simply rotate the stripper 90° in the opposite direction to cut off the stripped insulation layer.

[0036] In summary, the adaptive manual wire stripper of the present invention allows for the rotation of the short handle to clamp the insulated wire to be stripped. After clamping the insulated wire, the user holds the long handle with one hand and the short handle with the other, then rotates the stripper, allowing the blade to cut into the insulation layer of the wire and remove it. The stripper automatically adjusts the cutting depth according to the different diameters of the insulated wires to achieve the requirement of removing the insulation layer without damaging the conductor. This adaptive manual wire stripper is suitable for stripping the insulation layer of insulated wires of 20kV and below, with an outer diameter of 13mm to 38mm and an insulation layer thickness of 2.5mm to 4.5mm. It can adaptively adjust the cutting depth according to different outer diameters of the insulated wires, enabling reliable and rapid stripping of the insulation layer.

[0037] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any variations or modifications to the above embodiments that are within the spirit and essence of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A self-adaptive manual wire stripper specifically for insulated wires, characterized in that, Includes a left-end clamp, a right-end clamp, a lead screw, a tool adjusting lift, a tool adjusting slider, a tool holder, a blade, a tool adjusting knob, a long handle, and a short handle, wherein: The left-end clamp and the right-end clamp are arranged one on the left and one on the right, and a bracket is provided in the rear opening between the left-end clamp and the right-end clamp; The lead screw is positioned between the left-end clamp and the right-end clamp. One end of the lead screw has a right-hand thread, which passes through the left-end clamp and connects to a copper sleeve. The other end of the lead screw has a left-hand thread, which passes through the right-end clamp and connects to a copper sleeve. When the lead screw rotates, the left-end clamp and the right-end clamp perform lateral linear movements in opposite directions or towards each other. The left end clamp has a vertically formed axial hollow hole, and the tool adjusting lifting frame is installed in the axial hollow hole. The tool adjusting lifting frame is located in front of the lead screw. The tool adjusting slider passes through the tool adjusting lifting frame laterally. A needle roller bearing is arranged longitudinally inside the tool adjusting lifting frame. The needle roller bearing is tangent to the tool adjusting slider. A bearing pin is arranged inside the needle roller bearing, and the needle roller bearing moves in a circular motion along the bearing pin. A first spring is vertically installed inside the tool adjusting lifting frame, and the first spring is located below the tool adjusting slider; a spring pressure cover plate is provided at the bottom end of the tool adjusting lifting frame, and the spring pressure cover plate is connected to the bottom end of the first spring by fastening bolts. The tool holder is located at the upper end of the tool adjusting lifting frame; the blade is fixed inside the tool holder by a blade fixing bolt; tool holder track bolts are symmetrically arranged on the left and right sides of the tool holder; A left support side plate is provided on the left side of the left end clamp; the tool adjusting knob is rotatably mounted on the left support side plate, and the tool adjusting knob is threadedly connected to the tool adjusting slider. An axial groove is provided on the outer side wall of the tool adjusting knob, and a handle is provided at the left end of the tool adjusting knob; a steel ball is provided in the axial groove of the tool adjusting knob; a second spring is vertically arranged in the left support side plate; a spring pressing bolt is provided at the top of the left support side plate, one end of the second spring is in contact with the steel ball, and the other end is connected to the spring pressing bolt; One end of the long handle is set on the left side plate of the bracket, and the other end is fitted with a handle sleeve. The right end clamp is provided with a right support side plate on the right side, and the short handle is rotatably mounted on the right support side plate. The short handle is connected to the right end of the lead screw by a fastening bolt. The upper end of the left clamp is connected to a blade sheath by a sheath fixing bolt, and the blade is located inside the blade sheath.

2. The adaptive manual wire stripper according to claim 1, characterized in that, The left support side plate has a long handle mounting hole and a through-hole for the blade adjustment knob. The top of the left support side plate has a downward-facing spring insertion hole. One end of the long handle is fixed in the long handle mounting hole. One end of the blade adjustment knob is rotatably mounted in the blade adjustment knob mounting hole. The spring insertion hole communicates with the axial groove of the blade adjustment knob. The second spring is located in the spring insertion hole, and the spring pressing bolt is fixed to the top of the spring insertion hole.

3. The adaptive manual wire stripper according to claim 1, characterized in that, The maximum axial distance of the axial groove of the knife adjustment knob is 2mm.

4. The adaptive manual wire stripper according to claim 1, characterized in that, The short handle has a central hole that runs through the left and right sides. The fastening bolt passes through the central hole of the short handle and is connected to the lead screw.

5. The adaptive manual wire stripper according to claim 1, characterized in that, A short handle mounting hole is provided on the right bracket side plate, and one end of the short handle is rotatably mounted in the short handle mounting hole.

6. The adaptive manual wire stripper according to claim 1, characterized in that, The fixing blade bolt is an internal hexagonal head bolt.

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