Electric screwdriver with compact structure

By setting reinforcing and positioning components between the connection end and the main body of the electric screwdriver, the problem of insufficient connection strength and stability of the electric screwdriver is solved, achieving higher connection stability and operational precision.

CN223989457UActive Publication Date: 2026-03-13QINGDAO MEIZHILAN IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In the current electric screwdriver, the connection strength and stability between the drive motor and the screwdriver base are poor, and it is easy for the screwdriver to loosen due to torque.

Method used

A reinforcing component is constructed between the connecting end and the main body, including a groove, an elastic element, a limiting element, and a limiting hole. When connected by threads, the reinforcing component is used for stability. A laser beam is used to assist in docking in conjunction with the positioning component to ensure accurate connection.

Benefits of technology

It improves the connection strength and stability of electric screwdrivers, reduces loosening caused by torque, and improves the accuracy and efficiency of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric screwdriver with a compact structure, which relates to the technical field of electric screwdrivers, and comprises a main body which provides a mounting basis for other parts, is internally provided with a cavity for accommodating each part, and is connected with a connecting wire at one end; the connecting end is connected to the other end of the main body through threads, a butt joint part is installed at one end of the connecting end, and a torsion adjusting sleeve is constructed on the surface of the butt joint part; a positioning assembly is constructed in the butt joint part, a reinforcing assembly which can be movably arranged in the horizontal direction is constructed between the main body and the connecting end, and the reinforcing assembly comprises a sliding groove, an elastic piece, a limiting piece and a limiting hole; according to the electric screwdriver, the reinforcing assembly is arranged between the connecting end and the main body, so that when the connecting end is in threaded connection with the main body, the connecting end can be further limited and stabilized under the action of the reinforcing assembly, the looseness of the connecting end caused by the torsion action in the operation process of the electric screwdriver can be reduced, the looseness of connection is avoided, and the service life of the electric screwdriver is prolonged. And the connection strength and stability are improved.
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Description

Technical Field

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

[0002] An electric screwdriver, also called an electric screwdriver or electric screwdriver, is a power tool used for tightening and loosening screws and nuts. This power tool is equipped with a mechanism for adjusting and limiting torque and is mainly used on assembly lines. It consists of three main parts: electronics, motor, and mechanics. Due to its high precision and efficiency, it has become an indispensable tool in the assembly industry.

[0003] Referring to the existing patent publication number: CN219685361U, a compact electric screwdriver includes a housing, an output device, and an electric screwdriver base; the output device is connected to the housing and includes a motor and a motor shaft; the electric screwdriver base is rotatably connected to the housing, and a connector is provided at the bottom of the electric screwdriver base for installing the screwdriver bit body. The overall structure of the electric screwdriver of this utility model is simplified, easy to assemble, reduces the internal space occupied by the electric screwdriver structure assembly, and the connection and transmission between the output device and the electric screwdriver base are more precise.

[0004] However, in actual use, the existing electric screwdrivers mostly use a method of installing the drive motor and the screwdriver base by drilling holes in the motor shaft or the screwdriver base and connecting them with fasteners. Since the output end of the electric screwdriver is prone to generating large torque during operation, the connection end is prone to loosening during long-term operation, resulting in poor connection strength and stability. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a compact electric screwdriver. This invention incorporates a reinforcing component between the connecting end and the main body. This component further secures and stabilizes the connecting end during threaded connection with the main body, reducing torque during operation and preventing loosening of the connection, thus improving connection strength and stability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A compact electric screwdriver, comprising:

[0008] The main body provides a mounting base for other components. It has an internal cavity to accommodate each component and a connecting wire at one end.

[0009] The connecting end is threaded to the other end of the main body. One end of the connecting end is fitted with a mating part, and the surface of the mating part is constructed with a torque adjusting sleeve.

[0010] The docking part has a positioning component inside, and a reinforcing component that can be movably arranged in the horizontal direction is constructed between the main body and the connecting end.

[0011] The present invention further provides that the reinforcing component includes: a groove, an elastic element, a limiting element, and a limiting hole;

[0012] The grooves are all formed on the surface of the main body near the connecting end. The elastic elements are all connected to the inside side of the grooves. The limiting elements are all installed on the movable end of the elastic elements. The limiting holes are formed on the surface of the connecting end that fits against the main body.

[0013] The present invention is further configured such that the limiting member is arranged in an "L" shape in the slide groove, and the limiting member corresponds to the limiting hole.

[0014] The present invention further comprises the positioning component including: a positioning part and an operation switch;

[0015] The positioning part is constructed inside the docking part, and the operating switch is installed on the surface of the docking part and electrically connected to the positioning part.

[0016] The present invention is further configured such that the positioning part is an optical fiber bundle.

[0017] The present invention is further configured such that a motor is installed inside the main body, and a start switch and a forward / reverse switch connected to the motor are respectively provided on the surface of the main body.

[0018] The present invention is further configured such that a hanging ring is installed at one end of the main body.

[0019] The beneficial effects of this utility model are as follows: By constructing a reinforcing component between the connecting end and the main body, the connecting end can be further constrained and stabilized under the action of the reinforcing component when it is threadedly connected to the main body. This reduces the torque effect of the electric screwdriver during operation, which can lead to loosening of the connecting end, prevent the connection from coming loose, and improve the connection strength and stability.

[0020] 1. This compact electric screwdriver, with its reinforced components, allows the operator to pull the limiting member within the groove and compress the elastic member during threaded connection between the connecting end and the main body. After the connecting end is connected to the main body, the limiting member can be released, allowing it to be inserted into the corresponding limiting hole on the surface of the connecting end. This further secures the connecting end, reducing the torque during operation that could cause the connecting end to loosen, preventing detachment, and improving connection strength and stability.

[0021] 2. This compact electric screwdriver, equipped with a positioning component, allows the positioning unit to be activated by an operating switch when tightening screws. This enables the positioning unit to emit a laser beam, which assists the mating part in positioning the screw in advance. This makes it easier for personnel to accurately locate the mating part, saving time and improving processing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first overall structure of a compact electric screwdriver proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the second integral structure of a compact electric screwdriver proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the front section of a compact electric screwdriver proposed in this utility model.

[0025] Figure 4 This utility model proposes a compact electric screwdriver. Figure 3 A magnified structural diagram of point A in the middle.

[0026] In the diagram: 1. Main body; 2. Connecting line; 3. Hanging ring; 4. Start switch; 5. Torque adjustment sleeve; 6. Connecting part; 7. Forward and reverse switch; 8. Motor; 9. Connecting end; 10. Positioning part; 11. Operating switch; 12. Slide groove; 13. Elastic element; 14. Limiting element; 15. Limiting hole. Detailed Implementation

[0027] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0028] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0029] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0030] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0031] Reference Figures 1 to 4 A compact electric screwdriver includes: a main body 1, providing a mounting base for other components, with an internal cavity for accommodating these components, and a connecting wire 2 connected to one end for connecting to an external power source to provide power to the screwdriver; one end of the connecting wire 2 is connected to the internal circuitry of the screwdriver, and the other end has a plug adapted to the external power source; a connecting end 9, which is threaded to the other end of the main body 1 for connecting to other tools or equipment, with a mating part 6 installed at one end of the connecting end 9. The surface of the mating part 6 is constructed with a torque adjustment sleeve 5, allowing the operator to directly adjust the torque output of the screwdriver and connect screws and other components via the mating part 6; the inner... The component has a positioning assembly that ensures the precise relative position of each part of the electric screwdriver during operation. When tightening or loosening screws, the positioning assembly ensures that the mating part 6 is accurately aligned with the screw, improving the accuracy and success rate of operation and reducing screw damage or operation failure caused by positional deviation. A horizontally movable reinforcing assembly is constructed between the main body 1 and the connecting end 9. Without affecting the overall compact structure of the electric screwdriver, it effectively enhances the connection strength between the main body 1 and the connecting end 9. When the electric screwdriver is subjected to external force, the reinforcing assembly can disperse the stress and prevent the main body 1 and the connecting end 9 from breaking or separating, thereby improving the structural stability and reliability of the electric screwdriver.

[0032] Specifically, refer to Figures 3 to 4 The reinforcing components include: a slide groove 12, an elastic element 13, a limiting element 14, and a limiting hole 15. The slide groove 12 is opened on the surface of the main body 1 near the connecting end 9. The elastic element 13 is connected to the inside side of the slide groove 12. The limiting element 14 is installed on the movable end of the elastic element 13. The limiting hole 15 is opened on the surface of the connecting end 9 that is in contact with the main body 1. In this embodiment, when the connecting end 9 is connected to the main body 1, the limiting element 14 can be pulled to move in the slide groove 12 and compress the elastic element 13. After the connecting end 9 is connected to the main body 1, the limiting element 14 can be released so that the limiting element 14 can be inserted into the corresponding limiting hole 15 on the surface of the connecting end 9, thereby further securing the connecting end 9 and reducing the loosening of the components caused by the torque of the electric screwdriver during operation.

[0033] Furthermore, the limiting member 14 is arranged in an "L" shape in the slide groove 12, and the limiting member 14 corresponds to the limiting hole 15. This design improves the stability of the connection and effectively prevents the limiting member 14 from shaking or loosening during movement, ensuring docking with the connecting end 9.

[0034] Specifically, refer to Figure 3 The positioning component includes a positioning part 10 and an operating switch 11. The positioning part 10 is constructed inside the docking part 6, and the operating switch 11 is mounted on the surface of the docking part 6 and electrically connected to the positioning part 10. The operating switch 11 can conveniently control the working state of the positioning part 10. In this embodiment, when tightening screws or the like with an electric screwdriver, the positioning part 10 can be activated by the operating switch 11. Furthermore, the positioning part 10 is constructed as an optical fiber beam, which enables the positioning part 10 to emit a laser beam or the like. Under the action of the laser beam, the docking part 6 can be pre-positioned to position the screw. The positioning part 10 can ensure that the suction nozzle is accurately aligned with the position of the screw, reduce operational errors caused by positional deviation, and improve the accuracy and efficiency of the work.

[0035] Specifically, refer to Figures 1 to 3 The main body 1 is equipped with a motor 8. The surface of the main body 1 is respectively provided with a start switch 4 and a forward / reverse switch 7 connected to the motor 8. In this embodiment, the motor 8 serves as the power source of the electric screwdriver. Through the control of the start switch 4 and the forward / reverse switch 7, it can realize a variety of working functions. The start switch 4 controls the start and stop of the motor 8, while the forward / reverse switch 7 determines the rotation direction of the motor 8, thereby meeting the working needs of tightening and disassembling different screws.

[0036] Furthermore, a hanging ring 3 is installed at one end of the main body 1. With this design, the hanging ring 3 provides a convenient way to carry the electric screwdriver. The operator can pass his fingers through the hanging ring 3 or hang the hanging ring 3 in a fixed position, thus easily carrying the electric screwdriver.

[0037] Working principle: When using this utility model, when installing the electric screwdriver, the connecting end 9 can be connected to the main body 1 through threads. During the gradual tightening process, the operator can pull the limiting member 14 to move within the slide groove 12 and compress the elastic member 13. After the connecting end 9 is connected to the main body 1, the limiting member 14 can be loosened, allowing it to be inserted into the corresponding limiting hole 15 on the surface of the connecting end 9. This further secures the connecting end 9, reducing the torque effect of the electric screwdriver during operation and preventing loosening of the components, thus improving the connection strength and stability. When tightening screws with the electric screwdriver, the positioning part 10 can be activated by the operating switch 11, causing the positioning part 10 to emit a laser beam. Under the action of the laser beam, the docking part 6 can be pre-positioned to facilitate the operator in finding the docking position, saving time and improving processing efficiency.

[0038] 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 compact electric screwdriver characterized by comprising: Including: The main body (1) provides installation base for other components, the inside is equipped with the cavity containing each component, and the connecting line (2) is connected at one end; The connecting end (9) is screwed at the other end of the main body (1), one end of the connecting end (9) is provided with the butt joint part (6), and the surface of the butt joint part (6) is provided with the torque adjusting sleeve (5); The inside of the butt joint part (6) is provided with a positioning assembly, and a reinforcing assembly movably arranged in the horizontal direction is arranged between the main body (1) and the connecting end (9).

2. A compact electric screwdriver according to claim 1, characterized in that The reinforcing assembly comprises a sliding groove (12), an elastic member (13), a limiting member (14) and a limiting hole (15); The sliding groove (12) is arranged on the surface of the main body (1) near the connecting end (9), the elastic member (13) is connected to the inside of the sliding groove (12), the limiting member (14) is mounted on the movable end of the elastic member (13), and the limiting hole (15) is arranged on the surface of the connecting end (9) and the main body (1).

3. A compact electric screwdriver according to claim 2, characterized in that The limiting member (14) is arranged in the sliding groove (12) in the form of "L", and the limiting member (14) corresponds to the limiting hole (15).

4. The compact electric screwdriver according to claim 1, wherein The positioning assembly comprises a positioning part (10) and an operation switch (11); The positioning part (10) is arranged in the butt joint part (6), and the operation switch (11) is mounted on the surface of the butt joint part (6) and electrically connected with the positioning part (10).

5. A compact electric screwdriver according to claim 4, characterized in that The positioning part (10) is arranged in the form of photoelectric wire harness.

6. The compact electric screwdriver according to claim 1, wherein The inside of the main body (1) is provided with a motor (8), and the surface of the main body (1) is respectively provided with a starting switch (4) and a forward and reverse switch (7) connected with the motor (8).

7. The compact electric screwdriver according to claim 1, wherein One end of the main body (1) is provided with a hanging ring (3).

Citation Information

Patent Citations

  • Electric screwdriver with compact structure

    CN219685361U