Multi-angle adjustable electric wrench

By using worm gear transmission and U-shaped support frame design, the problem of fixed handle angle of electric wrench is solved, realizing multi-angle adjustment and improved grip stability, adapting to complex working environments.

CN224274887UActive Publication Date: 2026-05-26SHENZHEN OLIVE GLOBAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN OLIVE GLOBAL TECHNOLOGY CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The handle of existing electric wrenches has a fixed connection angle with the body, which cannot be flexibly adjusted according to actual work needs. This makes it inconvenient to operate in narrow spaces or at special angles, reduces work efficiency and increases the risk of misoperation.

Method used

It adopts a worm gear transmission adjustment mechanism and a U-shaped support frame structure, combined with a rotating connecting shaft design, to achieve multi-angle adjustment of the grip, and an anti-slip pad is set on the grip to improve grip stability.

Benefits of technology

It enables flexible adjustment of the grip angle, improves the comfortable grip posture and operational stability in different spatial environments, and enhances the convenience of working in narrow spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi-angle adjustable electric wrench which comprises an electric wrench body, a mounting groove is formed in the side face of the electric wrench body, an adjusting mechanism is fixed in the mounting groove, a supporting frame is installed on the adjusting mechanism, the supporting frame is of a U-shaped frame structure, a connecting shaft is fixed to the inner wall of the supporting frame, and the connecting shaft is connected with the electric wrench body. The connecting shaft is rotationally connected with the electric wrench body, and a grip is fixed to the supporting frame. Compared with the prior art, the adjustable worm and gear transmission adjusting mechanism is arranged, the structural design of the U-shaped supporting frame and the rotating connecting shaft is matched, the effect of flexibly adjusting the angle of the grip according to the operation requirement is achieved, and the grip can keep a comfortable holding posture in different space environments; by arranging the non-slip mat on the grip, the holding stability and comfort during operation are improved, the limitation of a traditional fixed-angle grip is broken through, and the convenience of operation in a narrow space is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electric wrench technology, and in particular to an electric wrench that can be adjusted to multiple angles. Background Technology

[0002] Electric wrenches, widely used in machinery repair, construction installation, and automobile manufacturing, have become essential equipment for various tightening operations due to their efficient torque output and convenient operation. Driven by a motor, they enable the rapid installation and removal of bolts and nuts, significantly improving work efficiency and reducing manual labor intensity, playing a crucial role in modern industrial production and daily maintenance scenarios.

[0003] Most electric wrenches on the market are designed like traditional pistol wrenches, with a fixed angle between the handle and the body. This limitation makes them unsuitable for tightening operations in confined spaces or at special angles. For example, in confined spaces such as equipment compartments with dense pipes or inside vehicles, a fixed-angle handle may not fit the operating position, making it difficult for the operator to apply force. This may even require repeated adjustments to body posture or tool changes, reducing work efficiency and increasing the risk of misoperation due to inconvenience. Therefore, we propose an electric wrench with multi-angle adjustment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-angle adjustable electric wrench.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electric wrench with multi-angle adjustment includes an electric wrench body, a mounting groove on the side of the electric wrench body, an adjustment mechanism fixed inside the mounting groove, a support frame mounted on the adjustment mechanism, the support frame having a U-shaped frame structure, a connecting shaft fixed on the inner wall of the support frame, the connecting shaft being rotatably connected to the electric wrench body, and a handle fixed on the support frame.

[0007] Preferably, the adjustment mechanism includes a housing fixed in the mounting groove, a rotating shaft rotatably connected inside the housing, a worm gear fixedly sleeved on the rotating shaft, a worm rotatably connected inside the housing, the worm passing through the top of the housing and connected to an adjustment wheel.

[0008] Preferably, the worm gear and the worm are meshed and driven, and one side of the rotating shaft passes through the side of the housing and is fixed to the support frame.

[0009] Preferably, the rotating shaft and the connecting shaft are coaxial, and the support frame is slidably connected to the side of the housing.

[0010] Preferably, an anti-slip pad is fixedly fitted onto the handle, and a storage battery is snapped onto the electric wrench body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model achieves the effect of flexibly adjusting the grip angle according to the operation requirements by setting an adjustable worm gear transmission adjustment mechanism, combined with the structural design of U-shaped support frame and rotating connecting shaft, so that the grip can maintain a comfortable grip posture in different spatial environments; by setting anti-slip pads on the grip, the grip stability and comfort during operation are improved, breaking through the limitations of traditional fixed angle grips and improving the convenience of working in narrow spaces. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an electric wrench that can be adjusted at multiple angles according to the present invention.

[0014] Figure 2 for Figure 1 Installation diagram of the central support frame;

[0015] Figure 3 for Figure 2 Cross-section of the central regulating mechanism.

[0016] In the diagram: 1 Electric wrench body, 2 Mounting slot, 3 Adjustment mechanism, 31 Housing, 32 Rotary shaft, 33 Worm gear, 34 Worm, 35 Adjustment wheel, 4 Support frame, 5 Connecting shaft, 6 Handle, 7 Battery. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-3 An electric wrench with multi-angle adjustment includes an electric wrench body 1, a mounting groove 2 on the side of the electric wrench body 1, an adjustment mechanism 3 fixed inside the mounting groove 2, a support frame 4 mounted on the adjustment mechanism 3, the support frame 4 having a U-shaped frame structure, a connecting shaft 5 fixed on the inner wall of the support frame 4, the connecting shaft 5 being rotatably connected to the electric wrench body 1, a handle 6 fixed on the support frame 4, and a battery 7 snapped onto the electric wrench body 1.

[0019] In a preferred embodiment, the adjustment mechanism 3 has the following specific structure: a housing 31 is fixed inside the mounting groove 2, and a rotating shaft 32 is rotatably connected inside the housing 31. A worm gear 33 is fixedly sleeved on the rotating shaft 32. A worm 34 is also rotatably connected inside the housing 31, with its top end penetrating the housing 31 and connecting to the adjustment wheel 35. The worm gear 33 and the worm 34 form a meshing transmission. One end of the rotating shaft 32 penetrates the side of the housing 31 and is fixed to the support frame 4. The support frame 4 has a U-shaped frame structure, and a connecting shaft 5 fixed to its inner wall is rotatably connected to the electric wrench body 1. The rotating shaft 32 and the connecting shaft 5 are coaxially arranged to ensure the coaxiality of the rotation adjustment. The side of the support frame 4 is slidably connected to the housing 31 to ensure the stability of the adjustment process. In addition, an anti-slip pad is fixedly sleeved on the outside of the handle 6, and a battery 7 is snapped onto the electric wrench body 1 to provide power to the device.

[0020] The mounting groove 2 on the side of the electric wrench body 1 provides installation space for the adjustment mechanism 3. When the angle of the handle 6 needs to be adjusted, the operator rotates the adjustment wheel 35. The adjustment wheel 35 drives the worm 34 to rotate inside the housing 31. Since the worm 34 and the worm wheel 33 are meshed, the rotation of the worm 34 drives the worm wheel 33 to rotate synchronously. The worm wheel 33 is fixedly connected to the support frame 4 through the rotating shaft 32, which in turn drives the rotating shaft 32 to rotate inside the housing 31, so that the support frame 4 rotates relative to the electric wrench body 1 with the connecting shaft 5 as the axis, thereby realizing the adjustment of the handle 6 angle. During this process, the support frame 4 is slidably connected to the side of the housing 31 to ensure that the adjustment process is smooth and stable. After the adjustment is completed, the handle 6 is fixed at the target angle by the structure of the U-shaped support frame 4. The operator holds the handle 6 and starts the electric wrench body 1 to work. The battery 7 provides power support for the equipment.

[0021] In summary, compared with the prior art, this utility model, by setting an adjustable worm gear transmission adjustment mechanism, combined with the structural design of a U-shaped support frame and a rotating connecting shaft, achieves the effect of flexibly adjusting the grip angle according to the work requirements, so that the grip can maintain a comfortable grip posture in different spatial environments; by setting an anti-slip pad on the grip, the grip stability and comfort during operation are improved, breaking through the limitations of traditional fixed-angle grips and improving the convenience of working in narrow spaces.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-angle adjustable electric wrench, comprising an electric wrench body (1), characterized in that, The electric wrench body (1) has a mounting groove (2) on its side. An adjustment mechanism (3) is fixed inside the mounting groove (2). A support frame (4) is mounted on the adjustment mechanism (3). The support frame (4) is a U-shaped frame structure. A connecting shaft (5) is fixed on the inner wall of the support frame (4). The connecting shaft (5) is rotatably connected to the electric wrench body (1). A handle (6) is fixed on the support frame (4).

2. The multi-angle adjustable electric wrench according to claim 1, characterized in that, The adjustment mechanism (3) includes a housing (31) fixed in the mounting groove (2), a rotating shaft (32) is rotatably connected inside the housing (31), a worm gear (33) is fixedly sleeved on the rotating shaft (32), a worm (34) is rotatably connected inside the housing (31), and the worm (34) passes through the top of the housing (31) and is connected to an adjustment wheel (35).

3. The multi-angle adjustable electric wrench according to claim 2, characterized in that, The worm wheel (33) and worm (34) are meshed and driven, and one side of the rotating shaft (32) passes through the side of the housing (31) and is fixed to the support frame (4).

4. The multi-angle adjustable electric wrench according to claim 2, characterized in that, The rotating shaft (32) is coaxial with the connecting shaft (5), and the support frame (4) is slidably connected to the side of the housing (31).

5. The multi-angle adjustable electric wrench according to claim 1, characterized in that, An anti-slip pad is fixedly fitted onto the handle (6), and a storage battery (7) is snapped onto the electric wrench body (1).