Handheld portable lithium battery wrench

By introducing a bendable rod lighting unit and a high-efficiency rotating unit into the handheld portable lithium-ion wrench, the operational challenges in low-light environments are solved, enabling precise operation and efficient socket replacement in low-light conditions, thus improving operational convenience and safety.

CN224116077UActive Publication Date: 2026-04-14JIANGSU YUPAI ELECTROMECHANICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing electric wrenches are difficult to align accurately with bolts or nuts in low light or confined space, making them inconvenient to operate.

Method used

A handheld portable lithium-ion wrench has been designed, equipped with a bendable lever lighting unit and a high-efficiency rotating unit, combined with a brushless motor drive, and features a charging protection structure and intelligent power display, which improves the ease of operation and safety.

Benefits of technology

The ability to flexibly adjust the lighting angle in low-light environments simplifies the socket replacement process, improves operational accuracy and work efficiency, and extends the tool's lifespan and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224116077U_ABST
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Abstract

The utility model belongs to the technical field of lithium battery wrenches, and particularly relates to a handheld portable lithium battery wrench which comprises a sleeve shell, a large-capacity lithium battery is arranged in the sleeve shell, a handle is fixedly connected to the upper surface of the sleeve shell, a switch is fixedly connected to the front face of the handle, and a disassembling mechanism is fixedly connected to the upper portion of the handle. The dismounting mechanism comprises a rotating unit and a lighting unit; the lighting unit comprises a bendable rod, a connecting base and a lighting lamp, the top of the bendable rod is fixed to the connecting base, the back face of the lighting lamp is fixedly connected to the connecting base, and the lighting lamp faces the rotating unit. According to the handheld portable lithium battery wrench, the bottom of the bendable rod is fixedly connected to the upper surface of the motor shell, so that the angle of the lighting unit can be flexibly adjusted to meet the lighting requirements in different working environments. The design not only improves the convenience of work, but also ensures that a user can accurately operate in an environment with insufficient light.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery wrench technology, specifically a handheld portable lithium battery wrench. Background Technology

[0002] Currently, electric wrenches mainly use two types of power: AC power and lithium battery power. An electric wrench is a power tool used for tightening and loosening bolts and nuts; it is a tool for tightening high-strength bolts. It is primarily used in steel structure bridges, factory construction, chemical plants, and power generation equipment installation.

[0003] Chinese patent CN217751223U discloses a portable lithium-ion battery wrench, which includes a lithium-ion battery body for hand-held use. One end of the lithium-ion battery body is connected to a support rod, and one end of the support rod is connected to an iron clamp. The bottom of the inner cavity of the iron clamp is provided with a drive shaft. The output shaft end of the lithium-ion battery body is fixedly connected to the drive shaft, and a fixing sleeve is detachably installed on the outside of the drive shaft.

[0004] The existing technical solutions mentioned above have the following drawbacks: aligning the locking groove with the bolt or nut requires a certain skill and patience, especially in environments with insufficient light or limited space, where the difficulty of alignment may increase.

[0005] To address this issue, we propose a handheld portable lithium-ion wrench. Utility Model Content

[0006] The purpose of this invention is to provide a handheld portable lithium-ion wrench to solve the problem of inconvenient operation in low light conditions mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a handheld portable lithium battery wrench, including a housing, a high-capacity lithium battery disposed inside the housing, a handle fixedly connected to the upper surface of the housing, a switch fixedly connected to the front of the handle, and a disassembly mechanism fixedly connected to the top of the handle;

[0008] The disassembly mechanism includes a rotating unit and a lighting unit;

[0009] The lighting unit includes a flexible rod, a connecting seat, and a lighting lamp. The top of the flexible rod is fixed to the connecting seat, and the back of the lighting lamp is fixedly connected to the connecting seat. The lighting lamp faces the rotating unit.

[0010] Preferably, the rotating unit includes a motor housing, a heat dissipation vent, a rotating shaft, a through hole, a sleeve, a threaded hole, a bolt, and a fastening nut. The bottom of the motor housing is fixedly connected to the upper surface of the handle. The heat dissipation vent is located on the right side of the motor housing. A brushless motor is installed inside the motor housing. The output end of the brushless motor is connected to the rotating shaft via a coupling. An external thread is provided on the right side of the rotating shaft, and a through hole is provided on the left side of the rotating shaft. One end of the sleeve is threaded to the rotating shaft, and the threaded hole is located at the other end of the sleeve. The sleeve is connected to the fastening nut via a bolt passing through the through hole. Through the brushless motor installed inside the motor housing, and the cooperation of the rotating shaft, sleeve, threaded hole, bolt, and fastening nut, the rotating unit achieves efficient and stable operation. This design not only improves the torque output and rotational accuracy of the lithium-ion wrench but also allows the sleeve to be firmly fixed to the rotating shaft, facilitating users to perform various bolt and nut tightening or loosening operations.

[0011] Preferably, the bottom of the bendable rod is fixedly connected to the upper surface of the motor housing. By fixing the bottom of the bendable rod to the upper surface of the motor housing, the lighting unit can flexibly adjust its angle to adapt to the lighting needs of different working environments.

[0012] Preferably, the handle has anti-slip texture on the side. The anti-slip texture design can increase the friction when the user holds the handle, preventing operation errors or safety accidents caused by slipping.

[0013] Preferably, a charging protection structure is provided on the right side of the casing. This structure includes a charging port, a fixing block, a connecting block, a protective plate, and an adapter strip. The charging port is located on the right side of the casing. The fixing block is fixedly connected above the charging port. The connecting block is fixedly connected to both sides of the protective plate. The connecting block is rotatably connected to the fixing block via the adapter strip. Anti-slip pads are fixedly connected to the bottom perimeter of the casing. Through the cooperation of the charging port, fixing block, connecting block, protective plate, and adapter strip, effective protection of the charging port is achieved. When not charging, the protective plate can rotate to cover the charging port, preventing dust, moisture, and other impurities from entering, thereby extending the lifespan and safety of the lithium-ion wrench.

[0014] Preferably, the handle also integrates an intelligent power display module, which displays the remaining battery power through LED indicator lights. Users can intuitively understand the battery status based on the color or flashing pattern of the indicator lights, so as to charge in time and avoid affecting efficiency due to insufficient power during operation.

[0015] Preferably, the protective plate is fitted to the charging port. When the protective plate is rotated to cover the charging port, it fits tightly against the charging port, further preventing the intrusion of dust, moisture, and other impurities. This design not only improves the protective performance of the lithium battery wrench but also allows the charging port to remain clean and dry when not in use for extended periods, thereby extending the service life of the charging port.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This handheld portable lithium-ion wrench features a flexible rod with its bottom fixedly attached to the upper surface of the motor housing, allowing the lighting unit to be flexibly adjusted to adapt to lighting needs in different working environments. This design not only improves ease of use but also ensures accurate operation even in low-light conditions.

[0018] 2. This handheld portable lithium-ion wrench features a through-hole on the left side of the shaft and a threaded connection between one end of the socket and the shaft. With the use of bolts and a tightening nut, users can easily secure the socket to the shaft and quickly disassemble and replace it. This design simplifies the socket replacement process, allowing users to quickly select the appropriate socket for different work requirements, thereby improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall side structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall front structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall bottom view of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model;

[0023] Figure 5 This is a partial structural schematic diagram of the present invention.

[0024] In the diagram: 1. Sleeve, 101. Threaded hole, 102. Bolt, 103. Fastening nut, 2. Motor housing, 201. Heat dissipation vent, 202. Shaft, 203. Through hole, 3. Handle, 301. Switch, 302. Anti-slip texture, 4. Housing, 401. Anti-slip pad, 501. Charging port, 502. Fixing block, 503. Connecting block, 504. Protective plate, 505. Adapter strip, 601. Bendable rod, 602. Connecting seat, 603. Lighting lamp. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 This utility model provides a technical solution: Example

[0027] A handheld portable lithium-ion wrench includes a housing 4, inside which a high-capacity lithium battery is housed, providing long-lasting power for the tool. A handle 3 is fixedly attached to the upper surface of the housing 4, providing a comfortable grip and allowing easy operation of the tool. A switch 301 is fixedly attached to the front of the handle 3, facilitating on / off operation. Anti-slip textures 302 are provided on the side of the handle 3 to increase friction and prevent the tool from slipping during use.

[0028] A disassembly mechanism is fixedly connected to the top of handle 3;

[0029] The disassembly mechanism includes a lighting unit; the lighting unit includes a flexible rod 601, a connecting seat 602, and a light 603. The top of the flexible rod 601 is fixed to the connecting seat 602, and the back of the light 603 is fixedly connected to the connecting seat 602, with the light 603 facing the rotating unit. The bottom of the flexible rod 601 is fixedly connected to the upper surface of the motor housing 2. The lighting unit, including the flexible rod 601, connecting seat 602, and light 603, provides the user with an additional light source, enabling work in low-light environments. The design of the flexible rod 601 allows the light 603 to be flexibly adjusted in angle to meet different work needs. Example

[0030] Based on Embodiment 1, the disassembly mechanism further includes a rotating unit. The rotating unit comprises a motor housing 2, a heat dissipation vent 201, a rotating shaft 202, a through hole 203, a sleeve 1, a threaded hole 101, a bolt 102, and a fastening nut 103. The bottom of the motor housing 2 is fixedly connected to the upper surface of the handle 3. The heat dissipation vent 201 is located on the right side of the motor housing 2, which helps to dissipate heat during motor operation and extend the motor's service life. A brushless motor is installed inside the motor housing 2. Brushless motors are characterized by high efficiency and low noise, improving the tool's performance. The output end of the brushless motor is connected to the rotating shaft 202 via a coupling. The rotating shaft 202 has an external thread on its right side and a through hole 203 on its left side. One end of the sleeve 1 is threaded to the rotating shaft 202, and the threaded hole 101 is located in the sleeve 1. The sleeve 1 is connected to the fastening nut 103 via a bolt 102 passing through the through hole 203. This allows the tool to easily connect and disassemble various working heads, increasing its versatility.

[0031] A charging protection structure is located on the right side of the casing 4. This structure includes a charging port 501, a fixing block 502, a connecting block 503, a protective plate 504, and an adapter strip 505. The charging port 501 is located on the right side of the casing 4. The fixing block 502 is fixedly connected above the charging port 501, and the connecting block 503 is fixedly connected to both sides of the protective plate 504. The protective plate 504 fits snugly against the charging port 501. The connecting block 503 is rotatably connected to the fixing block 502 via the adapter strip 505. Anti-slip pads 401 are fixedly connected to the bottom of the casing 4 around its perimeter. The handle 3 also integrates an intelligent power display module. This module displays the remaining battery power in real time, reminding the user to charge promptly and avoid insufficient power affecting work efficiency. The protective plate 504 provides additional protection for the charging port, preventing dust, moisture, etc., from entering and affecting charging performance or causing safety hazards.

[0032] Working principle: The high-capacity lithium battery inside the casing 4 provides long-lasting power to the entire tool. When switch 301 is pressed, current flows through the circuit system to the motor, driving it to operate. The brushless motor inside the motor housing 2 is characterized by high efficiency and low noise. When the motor receives current, its output end is connected to the rotating shaft 202 via a coupling, thereby driving the rotating shaft 202 to rotate.

[0033] The right side of the rotating shaft 202 has an external thread, which can be threaded to the threaded hole 101 at one end of the sleeve 1. Simultaneously, the sleeve 1 is connected to the rotating shaft 202 via a bolt 102 passing through the through hole 203 and the fastening nut 103, ensuring a secure connection between the sleeve 1 and the rotating shaft 202. This design allows for easy connection and disassembly of various working heads, increasing the tool's versatility. The lighting unit includes a flexible rod 601, a connecting seat 602, and a lighting lamp 603. The flexible rod 601 allows the lighting lamp 603 to be flexibly adjusted to meet different work needs. When light is insufficient, the user can turn on the lighting lamp 603 to provide additional light to the work area. The heat dissipation vent 201 on the right side of the motor housing 2 helps dissipate heat during motor operation, extending the motor's lifespan. Meanwhile, the charging protection structure on the right side of the sleeve 4 provides additional protection for the charging port 501, preventing dust, moisture, etc., from entering the charging port, affecting charging efficiency or causing safety hazards.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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 limitations, 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.

Claims

1. A handheld portable lithium-ion wrench, comprising a housing (4), characterized in that: The casing (4) is equipped with a high-capacity lithium battery. A handle (3) is fixedly connected to the upper surface of the casing (4). A switch (301) is fixedly connected to the front of the handle (3). A disassembly mechanism is fixedly connected to the top of the handle (3). The disassembly mechanism includes a rotating unit and a lighting unit; The lighting unit includes a bendable rod (601), a connecting seat (602), and a lighting lamp (603). The top of the bendable rod (601) is fixed to the connecting seat (602), and the back of the lighting lamp (603) is fixedly connected to the connecting seat (602). The lighting lamp (603) faces the rotating unit.

2. The handheld portable lithium-ion wrench according to claim 1, characterized in that: The rotating unit includes a motor housing (2), a heat dissipation port (201), a rotating shaft (202), a through hole (203), a sleeve (1), a threaded hole (101), a bolt (102), and a fastening nut (103). The bottom of the motor housing (2) is fixedly connected to the upper surface of the handle (3). The heat dissipation port (201) is opened on the right side of the motor housing (2). A brushless motor is installed inside the motor housing (2). The output end of the brushless motor is connected to the rotating shaft (202) through a coupling. An external thread is opened on the right side of the rotating shaft (202). A through hole (203) is opened on the left side of the rotating shaft (202). One end of the sleeve (1) is threaded to the rotating shaft (202). The threaded hole (101) is opened in the sleeve (1). The sleeve (1) is connected to the fastening nut (103) through the through hole (203) by the bolt (102).

3. A handheld portable lithium-ion wrench according to claim 1, characterized in that: The bottom of the bendable rod (601) is fixedly connected to the upper surface of the motor housing (2).

4. A handheld portable lithium-ion wrench according to claim 1, characterized in that: The handle (3) has anti-slip texture (302) on its side.

5. A handheld portable lithium-ion wrench according to claim 1, characterized in that: The right side of the casing (4) is provided with a charging protection structure, which includes a charging port (501), a fixing block (502), a connecting block (503), a protective plate (504), and an adapter strip (505). The charging port (501) is located on the right side of the casing (4). The fixing block (502) is fixedly connected above the charging port (501). The connecting block (503) is fixedly connected to both sides of the protective plate (504). The connecting block (503) is rotatably connected to the fixing block (502) through the adapter strip (505). The bottom of the casing (4) is fixedly connected to the anti-slip pad (401).

6. A handheld portable lithium-ion wrench according to claim 1, characterized in that: The handle (3) also integrates an intelligent power display module.

7. A handheld portable lithium-ion wrench according to claim 5, characterized in that: The protective plate (504) is attached to the charging port (501).

Citation Information

Patent Citations

  • Portable lithium battery wrench

    CN217751223U