Electric power tool

By introducing innovative designs such as grooves, adjusting bolts, V-shaped pulleys, and wire clamps into power tools, the problems of unstable wire clamping and poor cutting applicability have been solved, enabling stable cutting and efficient operation of cables of different diameters.

CN223843433UActive Publication Date: 2026-01-27梁廷光
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Patent Information

Application Number
CN202423287456.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-27
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing power tools have unstable wire clamping, a single cutting direction, and a small contact area, making them difficult to apply to cables of different diameters, thus affecting the cutting process and applicability.

Method used

A structure including a slide groove, adjusting bolt, blade holder, V-shaped pulley, and wire pressure plate is designed. The slide groove restricts the movement trajectory of the blade holder, and the adjustment of the V-shaped pulley and wire pressure plate enables stable clamping and cutting of wires of different diameters. The slotted blade design facilitates replacement, and the motor-driven pulley improves operating efficiency.

Benefits of technology

It achieves stable cutting of cables of different diameters, reduces the time spent adjusting the blade direction, improves cutting efficiency and stability, clamps the wire more securely, saves effort and does not damage the wire, and makes blade replacement convenient.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223843433U_ABST
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Abstract

The utility model provides an electric power tool. According to the electric power tool, a sliding groove is fixedly connected to the position, located at the top, of one side of the inner wall of a handle, a bottom plate is installed at the position, close to the bottom, of the interior of the handle, an adjusting bolt is in threaded connection with the position, close to one side, of the bottom of the bottom plate, and a tool rest is installed at the top end of the adjusting bolt through a first rotating ring; sliding rails are installed at the positions, close to the front face and the back face, of the two sides of the inner wall of the handle correspondingly, and a supporting plate is slidably connected between each set of sliding rails. According to the electric power tool provided by the utility model, transverse cutting and longitudinal cutting of electric wires and cables can be completed without adjusting the direction of the blade during wire stripping through the structure, and the transverse cutting and the longitudinal cutting can be completed only by one step, so that the time for adjusting the blade is saved, the speed is higher, the double-V-shaped pulley is firmer and does not shake during wire clamping, and the working efficiency is improved. And moreover, more labor is saved when the wire and the cable are pulled, the process is attractive during wire stripping, the wire is not damaged, and the blade is replaced more quickly.
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Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to a power tool. Background Technology

[0002] The main electrical tools used for wire stripping include wire strippers, electrician's knives, and wire strippers. When wires need to be stripped, the blade on the electrical tool can be used to cut the outer sheath of the wire.

[0003] Existing power tools are prone to wire clamping that is unstable and does not clamp tightly enough, affecting the cutting process. They also have a single cutting direction, and the small cutting contact area makes it difficult to control the cutting depth. Furthermore, stripping and cutting cables of different diameters reduces their applicability.

[0004] Therefore, it is necessary to provide an electric tool to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides an electric tool that solves the problems of poor stability when clamping wires, which affects the cutting process, small contact area when cutting wire sheaths, making it difficult to control the cutting depth, and inapplicability to wires of different diameters, which reduces its applicability.

[0006] To solve the above-mentioned technical problems, the electric tool provided by this utility model includes: a handle;

[0007] A slide groove is fixedly connected to one side of the inner wall of the handle at the top position. A base plate is installed inside the handle near the bottom position. An adjusting bolt is threadedly connected to the bottom of the base plate near one side. A tool holder is installed on the top of the adjusting bolt through a first rotating ring. Slide rails are installed on both sides of the inner wall of the handle near the front and back positions. A support plate is slidably connected between each set of slide rails. A pressure plate is fixedly connected to the top of two support plates. A pressing handle is installed on the front of one of the support plates located on the front.

[0008] A fixing plate is installed on the back of the handle, and a support frame is fixedly connected to the top of the fixing plate. Two V-shaped pulleys are installed on the front of the support frame.

[0009] One end of the adjusting bolt passes through the bottom of the handle, and the other end of the adjusting bolt is threaded through the base plate. The blade holder moves inside the slide groove. Two slide rails on the same side of the inner wall of the handle form a group. The handle part includes the handle, the fixing plate, and the support frame. It mainly fixes the double V-shaped pulley and the wire pressing plate. The wire pressing plate and slide rail part adopts a spring type. One end of the spring is connected to the handle, and the other end is fixed to the slide groove. Pressing and pulling the handle down will make the wire pressing plate slide downward. Releasing the hand will automatically return it to its original position. Its main purpose is to firmly press the wire and cable, and lock it in the double V-shaped pulley to prevent it from loosening. The blade holder is installed inside the slide groove. The main function of this part is to cut the outer sheath of the wire and cable. The blade and the blade holder are matched by a slot type. The blade is locked in the blade holder. It is easy to replace the blade. Just pull it out and insert it to replace it. Pressing and pressing the handle to contact the limit will slide the wire pressing plate downward. After releasing the handle, the wire pressing plate will be elastically rebounded and cooperate with the V-shaped pulley to press the wire. The handle has a pressing structure inside.

[0010] Preferably, the handle has an opening on its front side, and the pressure plate has a cutting opening on its top.

[0011] The movable opening is for easy pressing of the handle.

[0012] Preferably, a connecting plate is installed at the bottom of the two support plates, and a support spring is installed at the bottom of the connecting plate. The bottom end of the support spring is connected to the top of the base plate through a fixing plate.

[0013] The support spring helps the pressure plate to press the wire firmly.

[0014] Preferably, an auxiliary frame is installed on one side of the handle, a mounting shell is installed on the front of the auxiliary frame, a motor is installed inside the mounting shell, and a drive pulley is installed at the output end of the motor;

[0015] The motor's output shaft runs through the front of the auxiliary frame, and the mounting housing has holes to aid in heat dissipation.

[0016] Preferably, the top of the auxiliary frame is threaded with a mounting bolt, and the bottom end of the mounting bolt is rotatably connected to a movable frame via a second rotating ring;

[0017] The movable frame, located inside the auxiliary frame near the top, can be adjusted in height using mounting bolts.

[0018] Preferably, the bottom of the movable frame is rotatably connected to a limiting pulley, and the top of the movable frame is equipped with a stabilizing bar near the front and back positions via a fixing plate;

[0019] The stabilizer bar runs through the top of the auxiliary frame.

[0020] Compared with related technologies, the power tool provided by this utility model has the following beneficial effects:

[0021] This utility model provides an electric tool. To facilitate wire stripping and increase the tool's applicability, a groove is installed inside the handle. The blade holder is then mounted inside the groove via adjusting bolts and a base plate. The adjusting bolts allow for adjustment of the blade holder's position, while the groove restricts its movement, increasing stability. Two V-shaped pulleys are then installed on the front of the support frame, aligning the cutting edge of the pressure plate with the neutral line of the V-shaped pulleys. The pressure plate is mounted on the handle via a support plate and a slide rail. The distance between the pressure plate and the V-shaped pulleys can be adjusted by changing the position of the pressing handle, allowing it to accommodate wires of different diameters. This structure eliminates the need to adjust the blade direction during wire stripping, enabling both horizontal and vertical cuts with a single stroke. This saves time on blade adjustments, resulting in faster stripping. The double V-shaped pulleys provide a more secure and stable grip, reducing the effort required to pull the wire. The stripping process is aesthetically pleasing, does not damage the wire, and allows for quicker blade replacements. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the first embodiment of the power tool provided by this utility model;

[0023] Figure 2 A structural schematic diagram of the support frame is provided for this utility model;

[0024] Figure 3 A cross-sectional view of the handle is provided for this utility model;

[0025] Figure 4 A schematic diagram of the structure of a second embodiment of the power tool provided by this utility model;

[0026] Figure 5 Provided for this utility model Figure 4 An enlarged view of point A shown;

[0027] Figure 6 A schematic diagram of the motor structure is provided for this utility model.

[0028] The following are the labels in the diagram: 1. Handle, 2. Adjusting bolt, 3. Movable port, 4. Press handle, 5. Support plate, 6. Pressure plate, 7. V-shaped pulley, 8. Support frame, 9. Fixing plate, 10. Cutting port, 11. Slide rail, 12. Connecting plate, 13. Support spring, 14. Fixing plate, 15. First rotating ring, 16. Tool holder, 17. Slide groove, 18. Auxiliary frame, 19. Mounting shell, 20. Drive pulley, 21. Movable frame, 22. Fixing plate, 23. Stabilizing rod, 24. Mounting bolt, 25. Second rotating ring, 26. Limiting pulley, 27. Motor, 28. Base plate. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the power tool provided by this utility model; Figure 2 A structural schematic diagram of the support frame is provided for this utility model; Figure 3 A cross-sectional view of the handle is provided for this utility model. The power tool includes: a handle 1;

[0031] The slide groove 17 is fixedly connected to one side of the inner wall of the handle 1 at the top position. A base plate 28 is installed inside the handle 1 near the bottom position. An adjusting bolt 2 is threadedly connected to the bottom of the base plate 28 near one side. A knife holder 16 is installed on the top of the adjusting bolt 2 through a first rotating ring 15. Slide rails 11 are installed on both sides of the inner wall of the handle 1 near the front and back positions. A support plate 5 is slidably connected between each set of slide rails 11. A pressure plate 6 is fixedly connected to the top of the two support plates 5. A pressing handle 4 is installed on the front of one of the support plates 5 located on the front.

[0032] A fixing plate 9 is installed on the back of the handle 1. A support frame 8 is fixedly connected to the top of the fixing plate 9. Two V-shaped pulleys 7 are installed on the front of the support frame 8.

[0033] One end of the adjusting bolt 2 passes through the bottom of the handle 1, and the other end of the adjusting bolt 2 is threaded through the base plate 28. The tool holder 16 moves inside the slide groove 17. Two slide rails 11 on the same side of the inner wall of the handle 1 form a group. The handle part includes the handle 1, the fixing plate 9, and the support frame. It mainly fixes the double V-shaped pulley 7 and the pressure plate 6. The pressure plate 6 and the slide rail 11 part adopt a spring type. One end of its spring is connected to the handle, and the other end is fixed to the slide groove. Pressing and pulling the handle down will make the pressure plate slide groove slide down. The device automatically returns to its original position when released. Its main purpose is to firmly press the wires and cables, locking them in the double V-shaped pulley 7 to prevent them from loosening. The blade holder is installed inside the slide groove 17. The main function of this part is to cut the outer sheath of the wires and cables. The blade and the blade holder are connected by a slot type. The blade is locked in the blade holder. Changing the blade is very easy. It can be pulled out or inserted to complete the replacement. The adjusting bolt 2 part can be adjusted according to the size of the wires and cables, so that the cutting work can be completed well. The slide groove 17 or the handle 1 has a scale on the front.

[0034] The handle 1 has an opening 3 on its front, and the pressure plate 6 has a cutting opening 10 on its top.

[0035] The movable opening 3 facilitates the movement of the handle 4, and the cutting opening 10 facilitates the up-and-down movement of the knife holder 16.

[0036] A connecting plate 12 is installed at the bottom of the two support plates 5, and a support spring 13 is installed at the bottom of the connecting plate 12. The bottom end of the support spring 13 is connected to the top of the base plate 28 through a fixing plate 14.

[0037] The support spring 13 assists the pressure plate 6 in pressing the wire.

[0038] The working principle of the electric tool provided by this utility model is as follows:

[0039] After installing a groove 17 inside the handle 1, the tool holder 16 is installed inside the groove 17 using adjusting bolts 2 and base plate 28. The position of the tool holder 16 can be adjusted by adjusting bolts 2, and the groove 17 restricts the movement trajectory of the tool holder 16 to increase stability. Then, two V-shaped pulleys 7 are installed on the front of the support frame 8, and the cutting notch 10 on the top of the pressure plate 6 is aligned with the neutral line of the V-shaped pulley 7. The pressure plate 6 is installed on the handle 1 via the support plate 5 and slide rail 11. The position of the pressure plate 6 and the V-shaped pulley 7 can be adjusted by adjusting the position of the pressing handle 4. The spacing between the wheels 7 allows it to be used with wires of different diameters. In actual use, first press the handle 4 with your thumb and pull it down to move the pressure plate 6 down along the slide rail 11. Place the wire and cable into the middle of the double V-shaped pulley group, then release your thumb to make the pressure plate 6 automatically spring back and press the wire and cable, so that it is firmly locked in the double V-shaped pulley. Then, turn the adjusting bolt 2 by hand to make the blade holder 16 move forward in the slide groove. When it is adjusted to the size that the outer sheath of the wire and cable needs to be cut, turn the double V-shaped wire stripper one turn or pull the wire and cable with your left hand to complete a horizontal and vertical cut.

[0040] Compared with related technologies, the power tool provided by this utility model has the following beneficial effects:

[0041] To facilitate wire stripping with power tools and increase their versatility, a groove 17 is installed inside the handle 1. The tool holder 16 is then mounted inside the groove 17 via adjusting bolts 2 and a base plate 28. Adjusting bolts 2 allow for adjustment of the tool holder 16's position, while the groove 17 restricts its movement, increasing stability. Next, two V-shaped pulleys 7 are installed on the front of the support frame 8, aligning the cutting notch 10 on the top of the wire clamping plate 6 with the neutral line of the V-shaped pulleys 7. The wire clamping plate 6 is then mounted via the support frame 8. The support plate 5 and slide rail 11 are mounted on the handle 1. The distance between the wire clamping plate 6 and the V-shaped pulley 7 can be adjusted by adjusting the position of the pressing handle 4, making it suitable for wires of different diameters. With this structure, the wire and cable can be cut horizontally and vertically without adjusting the direction of the blade during wire stripping. Basically, whether it is a horizontal or vertical cut, it can be cut with just one cut, which saves the time of adjusting the blade and makes it faster. The double V-shaped pulley clamps the wire more securely without shaking, and it is easier to pull the wire and cable. The wire stripping process is beautiful, does not damage the wire, and the blade can be replaced more quickly.

[0042] Second Embodiment

[0043] Please refer to the following: Figures 4-5 - Figure 6 , Figure 4 A schematic diagram of the structure of a second embodiment of the power tool provided by this utility model; Figure 5 Provided for this utility model Figure 4 An enlarged view of point A shown; Figure 6 This utility model provides a structural schematic diagram of a motor. Based on the power tool provided in the first embodiment of this application, the second embodiment of this application proposes another power tool. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0044] Specifically, the difference in the electric tool provided in the second embodiment of this application is that an auxiliary frame 18 is installed on one side of the handle 1, a mounting shell 19 is installed on the front of the auxiliary frame 18, a motor 27 is installed inside the mounting shell 19, and a drive pulley 20 is installed at the output end of the motor 27.

[0045] The output shaft of the motor 27 passes through the front of the auxiliary frame 18. The mounting housing 19 has holes for heat dissipation. The drive pulley 20 is connected to the inside of the auxiliary frame 18 near the bottom.

[0046] The top of the auxiliary frame 18 is threaded with a mounting bolt 24, and the bottom end of the mounting bolt 24 is rotatably connected to a movable frame 21 via a second rotating ring 25.

[0047] The movable frame 21 is located inside the auxiliary frame 18 near the top, and its height can be adjusted by mounting bolts 24.

[0048] The bottom of the movable frame 21 is rotatably connected to a limiting pulley 26, and the top of the movable frame 21 is equipped with a stabilizing rod 23 near the front and back positions via a fixing plate 22.

[0049] The stabilizer bar 23 runs through the top of the auxiliary frame 18. The limiting pulley 26 and the drive pulley 20 have the same shape as the V-shaped pulley 7, but the outer surface is treated with anti-slip treatment.

[0050] Compared with related technologies, the power tool provided by this utility model has the following beneficial effects:

[0051] To facilitate the passage of the wire through the V-shaped pulley 7 and the pressure plate 6, an auxiliary frame 18 is installed on one side of the handle 1. Inside the auxiliary frame 18, near the bottom, a drive pulley 20 is installed via a motor 27. Simultaneously, inside the auxiliary frame 18, near the top, a limiting pulley 26 is installed via a movable frame 21. The movable frame 21 can be adjusted in height using mounting bolts 24, allowing for adjustment of the clamping force of the limiting pulley 26 and the drive pulley 20 on the wire as needed. In actual use, after the wire is positioned between the pressure plate 6 and the V-shaped pulley 7, one end of the wire passes through the drive pulley 20 and the limiting pulley 26. The mounting bolts 24 bring the limiting pulley 26 close to the drive pulley 20 to clamp the wire. When cutting the outer sheath, the motor 27 is activated, using the drive pulley 20 and the limiting pulley 26 to move the wire to one side. This design allows the wire to be moved using the drive pulley 20 and the limiting pulley 26, eliminating the need for manual pulling and improving the efficiency of the power tool.

[0052] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electric tool, characterized in that, include: handle; A slide groove is fixedly connected to one side of the inner wall of the handle at the top position. A base plate is installed inside the handle near the bottom position. An adjusting bolt is threadedly connected to the bottom of the base plate near one side. A tool holder is installed on the top of the adjusting bolt through a first rotating ring. Slide rails are installed on both sides of the inner wall of the handle near the front and back positions. A support plate is slidably connected between each set of slide rails. A pressure plate is fixedly connected to the top of two support plates. A pressing handle is installed on the front of one of the support plates located on the front. A fixing plate is installed on the back of the handle, and a support frame is fixedly connected to the top of the fixing plate. Two V-shaped pulleys are installed on the front of the support frame.

2. The power tool according to claim 1, characterized in that, The handle has an opening on its front, and the pressure plate has a cutting opening on its top.

3. The power tool according to claim 1, characterized in that, A connecting plate is installed at the bottom of each of the two support plates, and a support spring is installed at the bottom of the connecting plate. The bottom end of the support spring is connected to the top of the base plate via a fixing plate.

4. The power tool according to claim 1, characterized in that, An auxiliary frame is mounted on one side of the handle, and a mounting shell is mounted on the front of the auxiliary frame. A motor is installed inside the mounting shell, and a drive pulley is mounted on the output end of the motor.

5. The power tool according to claim 4, characterized in that, The top of the auxiliary frame is threaded with a mounting bolt, and the bottom end of the mounting bolt is rotatably connected to a movable frame via a second rotating ring.

6. The power tool according to claim 5, characterized in that, The bottom of the movable frame is rotatably connected to a limiting pulley, and the top of the movable frame is equipped with stabilizing rods near the front and back positions via fixing plates.