Lithium battery handheld electric wrench

By employing a symmetrically distributed mounting screw and lifting bracket design, the convenience issue of lithium-ion battery-powered handheld electric wrenches when clamping products of different lengths is resolved, achieving both stability and flexibility of the clamps, and enhancing the applicability and portability of lithium-ion battery-powered handheld electric wrenches.

CN224223765UActive Publication Date: 2026-05-12JIANGSU JIEJIE TOOL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIEJIE TOOL CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing lithium-ion handheld electric wrenches are not convenient for adjusting the clamp position according to actual needs when clamping products of different lengths, which affects the flexibility and convenience of use.

Method used

The design employs a symmetrically distributed mounting screw, combined with a lifting bracket and ball bearing ring. The lifting function of the clamp is achieved by driving the screw with a motor, and stable energy transmission is ensured by a tightly arranged lithium battery and motor connection.

Benefits of technology

It improves the clamping stability and accuracy of the clamps, prevents workpiece displacement, enhances the applicability and portability of the electric wrench, and ensures the effectiveness and flexibility of clamping operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric wrenches, and discloses a lithium battery handheld electric wrench which comprises a handle, the bottom of the handle is in threaded connection with an installation bottom ring, a lithium battery is inserted in the handle, a motor is fixedly connected in the handle, and the output end of the motor is fixedly connected with a lead screw. The top of the upper clamp and the top of the lower clamp are arranged, clamping of the upper clamp and the lower clamp is more stable and even through the symmetrically-distributed installation screws, when workpieces such as nuts or bolts are clamped, the workpieces can be effectively prevented from deviating or shaking in the clamping process, the clamping accuracy and reliability are improved, and the clamping efficiency is improved. According to the electric wrench, the first mounting screw and the upper clamp extend to the mounting clamping block, so that the fixing effect of the clamps is enhanced, it is ensured that in the working process of the electric wrench, the clamps can firmly clamp a workpiece, the loosening phenomenon is avoided, and therefore the effectiveness of tightening or loosening operation of the wrench on a nut or a bolt is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of electric wrench technology, and in particular to a lithium-ion handheld electric wrench. Background Technology

[0002] Lithium-ion battery handheld power tools are portable power tools that are typically powered by batteries or other portable power sources. Designed for handheld operation, they are suitable for a variety of applications and working environments. These tools are characterized by high efficiency and flexibility, enabling fast and precise operations on various metal surfaces, such as marking and cutting. High efficiency: Lithium-ion battery handheld power tools employ advanced pneumatic or electric designs to quickly create clear marks or make precise cuts on various metal surfaces, greatly improving work efficiency.

[0003] An existing lithium-ion battery-powered handheld electric wrench is not convenient to adjust the clamps according to the actual length of the product being processed when clamping and processing products of different lengths, which affects the flexibility and convenience of the handle during actual use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a lithium battery handheld electric wrench.

[0005] This utility model is achieved by the following technical solution: a lithium battery handheld electric wrench, including a handle, a mounting bottom ring threaded to the bottom of the handle, a lithium battery inserted inside the handle, a motor fixedly connected inside the handle, a lead screw fixedly connected to the output end of the motor, and a ball collar threaded to the surface of the lead screw.

[0006] A fixed bracket is fixedly connected to the surface of the handle, and a lifting bracket is threadedly connected to the surface of the lead screw. A mounting block is fixedly connected to the left end of the lifting bracket, and an upper clamp is engaged inside the mounting block. A mounting screw is threaded inside the upper clamp, and a mounting screw is threaded inside the lower clamp. A mounting screw is threaded inside the left end of the fixed bracket.

[0007] As a further improvement to the above solution, the bottom of the motor contacts the top surface of the lithium battery, the bottom of the lithium battery contacts the top surface of the mounting ring, and the lead screw is located inside the handle.

[0008] Through the above technical solution, the bottom of the motor contacts the top surface of the lithium battery, and the bottom of the lithium battery contacts the top surface of the mounting ring. This compact layout ensures efficient energy transfer, allowing the lithium battery to stably power the motor. As a power source, the compact installation of the lithium battery ensures power supply without making the handle too bulky, meeting the portability requirements of a handheld electric wrench.

[0009] As a further improvement to the above solution, the top of the ball collar contacts the bottom surface of the lifting bracket, and the lead screw extends through the ball collar into the interior of the lifting bracket.

[0010] As a further improvement to the above scheme, the number of mounting screw one and mounting screw two is set to two, and the two mounting screw one and mounting screw two are symmetrically distributed front and back around the lifting bracket.

[0011] Through the above technical solutions, mounting screw one and mounting screw two can improve the ease of operation and stability of the upper and lower clamps during installation and removal after installation.

[0012] As a further improvement to the above solution, the first mounting screw passes through the upper clamp and extends into the interior of the mounting block, and the second mounting screw passes through the lower clamp and extends into the interior of the fixed bracket.

[0013] As a further improvement to the above solution, the ball bearing ring is located inside the fixed bracket, and the lead screw is located inside the fixed bracket.

[0014] As a further improvement to the above solution, the upper clamp is located at the top of the lower clamp, the mounting screw is located at the top of the lower clamp, and the fixing bracket is located at the bottom of the lifting bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features symmetrically distributed mounting screws on the top of the upper and lower clamps, resulting in a more stable and uniform clamping action. When clamping workpieces such as nuts or bolts, this effectively prevents the workpiece from shifting or shaking during clamping, improving the accuracy and reliability of the clamping. The mounting screws and the extension of the upper clamp to the mounting block further enhance the clamping effect, ensuring that the clamps firmly hold the workpiece during the operation of the electric wrench without any loosening. This guarantees the effectiveness of the wrench in tightening or loosening nuts or bolts.

[0017] This utility model features a lead screw located inside the handle and extending through a ball bearing ring into the lifting bracket. The top of the handle contacts the bottom surface of the lifting bracket, and the motor drives the lead screw to rotate. The threaded connection between the lead screw, the ball bearing ring, and the lifting bracket enables the lifting function of the lifting bracket. This lifting function allows for flexible adjustment of the height of the upper and lower clamps according to different work requirements, such as the operation of nuts or bolts at different heights, thus increasing the applicability of the electric wrench. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the frontal anatomical structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the disassembly structure of the clamp of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model from below;

[0022] Figure 5 This is a schematic diagram of the right-side structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Handle; 2. Mounting bottom ring; 3. Lithium battery; 4. Motor; 5. Lead screw; 6. Ball bearing ring; 7. Fixed bracket; 8. Lifting bracket; 9. Mounting block; 10. Upper clamp; 11. Mounting screw one; 12. Lower clamp; 13. Mounting screw two. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5 This embodiment of a lithium battery handheld electric wrench includes a handle 1, a mounting bottom ring 2 threadedly connected to the bottom of the handle 1, a lithium battery 3 inserted inside the handle 1, a motor 4 fixedly connected inside the handle 1, a lead screw 5 fixedly connected to the output end of the motor 4, and a ball collar 6 threadedly connected to the surface of the lead screw 5.

[0028] A fixed bracket 7 is fixedly connected to the surface of the handle 1, and a lifting bracket 8 is threadedly connected to the surface of the lead screw 5. A mounting block 9 is fixedly connected to the left end of the lifting bracket 8. An upper clamp 10 is engaged inside the mounting block 9, and a mounting screw 11 is threadedly connected inside the upper clamp 10. A lower clamp 12 is engaged at the left end of the fixed bracket 7, and a mounting screw 2 13 is threadedly connected inside the lower clamp 12. By setting the tops of the upper clamp 10 and the lower clamp 12, the symmetrically distributed mounting screws make the clamping of the upper clamp 10 and the lower clamp 12 more stable and uniform. When clamping workpieces such as nuts or bolts, it can effectively prevent the workpiece from shifting or shaking during the clamping process, improving the accuracy and reliability of clamping. By setting the mounting screw 11 and the upper clamp 10 extending to the mounting block 9, the fixing effect of the clamp is enhanced, ensuring that the clamp can firmly clamp the workpiece during the operation of the electric wrench, and there will be no loosening. This ensures the effectiveness of the wrench in tightening or loosening nuts or bolts.

[0029] The bottom of motor 4 contacts the top surface of lithium battery 3, the bottom of lithium battery 3 contacts the top surface of mounting base ring 2, and lead screw 5 is located inside handle 1.

[0030] The bottom of motor 4 contacts the top surface of lithium battery 3, and the bottom of lithium battery 3 contacts the top surface of mounting ring 2. This compact layout ensures efficient energy transfer, allowing lithium battery 3 to stably power motor 4. As a power source, the compact installation of lithium battery 3 ensures that the power supply meets the portability requirements of a handheld electric wrench.

[0031] The top of the ball bearing ring 6 contacts the bottom surface of the lifting bracket 8, and the lead screw 5 extends through the ball bearing ring 6 into the interior of the lifting bracket 8.

[0032] The number of mounting screws 11 and 13 is set to two, and the two mounting screws 11 and 13 are symmetrically distributed front and back with the lifting bracket 8 as the center.

[0033] The installation screws 11 and 13 facilitate the installation and removal of the upper clamp 10 and lower clamp 12 after installation, and improve the stability of the installation. The lead screw 5 is located inside the handle 1 and extends through the ball bearing ring 6 into the lifting bracket 8. The top of the handle 1 contacts the bottom surface of the lifting bracket 8. The motor 4 drives the lead screw 5 to rotate. The threaded connection between the lead screw 5, the ball bearing ring 6, and the lifting bracket 8 realizes the lifting function of the lifting bracket 8. This lifting function can flexibly adjust the height of the upper clamp 10 and lower clamp 12 according to different work requirements, such as the operation of nuts or bolts at different heights, increasing the applicability of the electric wrench.

[0034] Mounting screw 11 extends through the upper clamp 10 into the interior of the mounting block 9, and mounting screw 2 13 extends through the lower clamp 12 into the interior of the fixing bracket 7.

[0035] The ball bearing ring 6 is located inside the fixed bracket 7, and the lead screw 5 is located inside the fixed bracket 7.

[0036] The upper clamp 10 is located on top of the lower clamp 12, the mounting screw 11 is located on top of the lower clamp 12, and the fixing bracket 7 is located at the bottom of the lifting bracket 8.

[0037] The implementation principle of a lithium-ion battery-powered handheld electric wrench in this embodiment is as follows: By setting the tops of the upper clamp 10 and the lower clamp 12, the symmetrically distributed mounting screws make the clamping of the upper clamp 10 and the lower clamp 12 more stable and uniform. When clamping workpieces such as nuts or bolts, it can effectively prevent the workpiece from shifting or shaking during the clamping process, improving the accuracy and reliability of clamping. By setting the mounting screw 11 and the upper clamp 10 extending to the mounting block 9, the fixing effect of the clamps is enhanced, ensuring that the clamps can firmly clamp the workpiece during the operation of the electric wrench, and preventing slippage. The loosening phenomenon ensures the effectiveness of the wrench in tightening or loosening nuts or bolts. By setting the lead screw 5 inside the handle 1 and extending through the ball bearing ring 6 into the lifting bracket 8, the top of the handle 1 contacts the bottom surface of the lifting bracket 8. The motor 4 drives the lead screw 5 to rotate. The threaded connection between the lead screw 5, the ball bearing ring 6, and the lifting bracket 8 realizes the lifting function of the lifting bracket 8. This lifting function can flexibly adjust the height of the upper clamp 10 and the lower clamp 12 according to different work needs, such as the operation of nuts or bolts at different heights, increasing the applicability of the electric wrench.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A lithium-ion battery-powered handheld electric wrench, characterized in that, Includes a handle (1), the bottom of the handle (1) is threaded with a mounting ring (2), a lithium battery (3) is inserted inside the handle (1), a motor (4) is fixedly connected inside the handle (1), a lead screw (5) is fixedly connected to the output end of the motor (4), and a ball collar (6) is threaded on the surface of the lead screw (5). The surface of the handle (1) is fixedly connected to a fixed bracket (7), the surface of the lead screw (5) is threadedly connected to a lifting bracket (8), the left end of the lifting bracket (8) is fixedly connected to a mounting block (9), the inside of the mounting block (9) is engaged with an upper clamp (10), the inside of the upper clamp (10) is threadedly connected to a mounting screw one (11), the left end of the fixed bracket (7) is engaged with a lower clamp (12), the inside of the lower clamp (12) is threadedly connected to a mounting screw two (13).

2. The lithium-ion battery-powered handheld electric wrench as described in claim 1, characterized in that: The bottom of the motor (4) is in contact with the top surface of the lithium battery (3), the bottom of the lithium battery (3) is in contact with the top surface of the mounting bottom ring (2), and the lead screw (5) is located inside the handle (1).

3. The lithium-ion battery-powered handheld electric wrench as described in claim 1, characterized in that: The top of the 6 handle (1) contacts the bottom surface of the lifting bracket (8), and the lead screw (5) extends through the ball collar (6) into the interior of the lifting bracket (8).

4. The lithium-ion battery-powered handheld electric wrench as described in claim 1, characterized in that: The number of mounting screw one (11) and mounting screw two (13) is set to two, and the two mounting screw one (11) and mounting screw two (13) are symmetrically distributed in front and behind with the lifting bracket (8) as the center.

5. A lithium-ion battery-powered handheld electric wrench as described in claim 1, characterized in that: The first mounting screw (11) extends through the upper clamp (10) into the interior of the mounting block (9), and the second mounting screw (13) extends through the lower clamp (12) into the interior of the fixing bracket (7).

6. A lithium-ion battery-powered handheld electric wrench as described in claim 1, characterized in that: The ball bearing ring (6) is located inside the fixed bracket (7), and the lead screw (5) is located inside the fixed bracket (7).

7. A lithium-ion battery-powered handheld electric wrench as described in claim 1, characterized in that: The upper clamp (10) is located at the top of the lower clamp (12), the mounting screw (11) is located at the top of the lower clamp (12), and the fixing bracket (7) is located at the bottom of the lifting bracket (8).