Double-key starting handle matched with electric screwdriver

Abstract

The utility model discloses a double-button starting handle matched with an electric screw driver, which relates to the technical field of electric screw driver handles and comprises a left holding handle and a limit connecting plate on one side of the left holding handle, a positioning restraint block is arranged on one side of the limit connecting plate, a reset spring is arranged on the inner side of the limit connecting plate, and double buttons independently control forward and reverse rotation functions. Through the arrangement of the thumb pressing block and the forward rotation pressing block, the rotation direction of the screwdriver can be switched by one hand, frequent adjustment of hand postures or cooperation of two hands is not needed, the screwdriver is particularly suitable for the multi-angle operation requirement when screws on the side wall or in a narrow space are fastened, the operation fatigue is greatly reduced, and the operation efficiency is improved. The design of the reset spring and the limiting structure ensures that the key rebounds and resets quickly after being operated, mistaken touch is avoided, the structural stability is guaranteed, meanwhile, the sealing performance of the pressing assembly is improved through the limiting constraint cover, the dust invasion influence is reduced, and efficient control experience is provided for the electric screwdriver through the cooperative advantages of single-hand double control and stable reset in the overall design.

Description

A dual-button start handle adapted for electric screwdrivers Technical Field

[0001] This utility model relates to the field of electric screwdriver handle technology, and in particular to a dual-button start handle adapted to an electric screwdriver. Background Technology

[0002] An electric screwdriver is a handheld tool powered by electricity. It mainly consists of a motor, transmission mechanism, handle, and bit. It is widely used in electronic assembly, furniture installation, and mechanical repair. Its core principle is to convert electrical energy into mechanical energy through a motor. After the gear set reduces the speed and increases the torque, it drives the bit to rotate, thereby tightening or loosening screws. Compared with traditional manual screwdrivers, electric screwdrivers have advantages such as high efficiency, precise torque, and less effort. Some models support torque adjustment function, which can prevent damage to screws or parts due to excessive force.

[0003] In practical applications of electric screwdrivers, traditional single-button operating handles are difficult to meet the needs of multi-angle operations. Especially when tightening screws on side walls or in narrow spaces, one-handed operation is inconvenient and inefficient. Most existing handles are fixed structures that can only achieve single-direction start control. When it is necessary to switch between forward and reverse rotation, it is necessary to frequently adjust the hand posture or operate with both hands, which can easily lead to fatigue and affect the accuracy of the operation. The limitations of traditional handles are even more obvious in long-term high-intensity operation scenarios.

[0004] With the diversification of industrial assembly and home repair scenarios, higher demands are being placed on the portability and operability of electric screwdrivers. Developing a starter handle that supports one-handed dual-button control for forward and reverse rotation has become a pain point in the industry. Summary of the Invention

[0005] Given the increasing diversity of industrial assembly and home repair scenarios, higher demands are being placed on the portability and operability of electric screwdrivers. Developing a starter handle that supports one-handed dual-button control for forward and reverse rotation has become a pain point in the industry, hence this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide independent forward and reverse control via dual buttons. By using the layout of the thumb pressing block and the forward pressing block, the screwdriver direction can be switched with one hand, eliminating the need for frequent adjustments to hand posture or the use of both hands. This is especially suitable for multi-angle operations when tightening screws on side walls or in confined spaces, significantly reducing operator fatigue. The design of the return spring and limit structure ensures rapid rebound and reset after button operation, preventing accidental touches and ensuring structural stability. At the same time, the limit constraint cover improves the sealing of the pressing components, reducing the impact of dust intrusion. The overall design leverages the synergistic advantages of single-handed dual control and stable reset, providing an efficient operating experience for electric screwdrivers.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a dual-button start handle adapted to an electric screwdriver, including a left handle and a limiting connecting plate on one side of the left handle, a positioning constraint block on one side of the limiting connecting plate, and a return spring on the inner side of the limiting connecting plate;

[0008] The pressing component includes a connecting fixing block installed inside the limiting connecting plate, a pressing connecting block on one side of the connecting fixing block, and a thumb pressing block on one side of the connecting fixing block;

[0009] The rotating assembly includes a right handle mounted on one side of the left handle, a rotating connecting rod provided on the inner side of the right handle, and a forward rotation pressing block provided between the left handle and the right handle.

[0010] As a preferred embodiment of the dual-button start handle for electric screwdrivers described in this utility model, a constraint fixing block is provided on one side of the connecting fixing block, the constraint fixing block is located inside the limiting connecting plate, a return spring is provided between the positioning constraint block and the constraint fixing block, and one end of the return spring is connected to the constraint fixing block.

[0011] As a preferred embodiment of the dual-button start handle for electric screwdrivers described in this utility model, one end of the reset spring is connected to the positioning constraint block, a limiting constraint cover is provided on one side of the limiting connecting plate, and one side of the connecting fixing block is in contact with one side of the limiting constraint cover.

[0012] As a preferred embodiment of the dual-button start handle for the electric screwdriver described in this utility model, an electric screwdriver is provided between the left and right handles, and a reverse button is provided on one side of the electric screwdriver. One end of the reverse button passes through the left and right handles and is suspended in the air.

[0013] As a preferred embodiment of the dual-button start handle for the electric screwdriver described in this utility model, the reverse button abuts against the pressing connecting block on one side, and the electric screwdriver is provided with a forward button on one side, which is located between the left and right handles.

[0014] As a preferred embodiment of the dual-button start handle for electric screwdrivers described in this utility model, a rotating connecting rod is provided on one side of the left handle, a rotating constraint groove is provided on the forward rotation pressing block, and the two rotating connecting rods are respectively inserted into the inner side of the rotating constraint groove from both ends of the forward rotation pressing block.

[0015] As a preferred embodiment of the dual-button start handle for electric screwdrivers described in this utility model, wherein: a pressing and rotating block is provided on one side of the forward pressing block, one end of the pressing and rotating block abuts against the forward button, a limiting and fixing block is provided on one side of the left handle, and one end of the forward pressing block passes through the left handle and the right handle and is suspended in the air.

[0016] The beneficial effects of this utility model are:

[0017] The dual-button independent control of forward and reverse rotation allows for one-handed switching of the screwdriver's direction via the layout of the thumb press and the forward press. This eliminates the need for frequent hand adjustments or two-handed coordination, making it particularly suitable for multi-angle operations when tightening screws on side walls or in confined spaces. It significantly reduces operator fatigue. The design of the return spring and limit structure ensures rapid rebound and reset after button operation, preventing accidental presses and ensuring structural stability. At the same time, the limit constraint cover improves the sealing of the pressing components, reducing the impact of dust intrusion. The overall design leverages the synergistic advantages of one-handed dual control and stable reset, providing an efficient operating experience for electric screwdrivers. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

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

[0020] Figure 2 is a schematic diagram of part of the structure of this utility model.

[0021] Figure 3 is a schematic diagram of the forward-rotating pressing block structure of this utility model.

[0022] Figure 4 is a schematic diagram of the structure of the electric screwdriver of this utility model.

[0023] Figure 5 is a schematic diagram of the right-hand handle structure of this utility model.

[0024] Figure 6 is a schematic diagram of the left handle structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Left handle; 2. Limiting connecting plate; 3. Positioning constraint block; 4. Connecting fixing block; 5. Constraint fixing block; 6. Return spring; 7. Pressing connecting block; 8. Thumb pressing block; 9. Limiting constraint cover; 10. Rotating connecting rod; 11. Limiting fixing block; 12. Forward rotation pressing block; 13. Rotating constraint groove; 14. Right handle; 15. Electric screwdriver; 16. Reverse button; 17. Forward rotation button; 18. Pressing rotating block. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Referring to Figures 1-4, the first embodiment of this utility model provides a dual-button start handle adapted to an electric screwdriver, including a left handle 1 and a limiting connecting plate 2 on one side of the left handle 1. A positioning constraint block 3 is provided on one side of the limiting connecting plate 2, and a return spring 6 is provided on the inner side of the limiting connecting plate 2. A connecting fixing block 4 is installed on the inner side of the limiting connecting plate 2. A pressing connecting block 7 is provided on one side of the connecting fixing block 4, a thumb pressing block 8 is provided on one side of the connecting fixing block 4, and a constraint fixing block 5 is provided on one side of the connecting fixing block 4. The constraint fixing block 5 is located on the inner side of the limiting connecting plate 2, and a return spring 6 is provided between the positioning constraint block 3 and the constraint fixing block 5. One end of the return spring 6 is connected to the constraint fixing block 5.

[0030] One end of the reset spring 6 is connected to the positioning constraint block 3. A limiting constraint cover 9 is provided on one side of the limiting connecting plate 2. One side of the connecting fixing block 4 is attached to one side of the limiting constraint cover 9. An electric screwdriver 15 is provided between the left handle 1 and the right handle 14. A reverse button 16 is provided on one side of the electric screwdriver 15. One end of the reverse button 16 passes through the left handle 1 and the right handle 14 and is suspended in the air.

[0031] Example 2

[0032] Referring to Figures 3-6, this is the second embodiment of the present invention. This embodiment differs from the first embodiment in that it includes a right handle 14 installed on one side of the left handle 1, a rotating connecting rod 10 provided on the inner side of the right handle 14, a forward rotation pressing block 12 provided between the left handle 1 and the right handle 14, a reverse button 16 abutting against the pressing connecting block 7 on one side, and a forward rotation button 17 provided on one side of the electric screwdriver 15. The forward rotation button 17 is located between the left handle 1 and the right handle 14.

[0033] A rotating connecting rod 10 is provided on one side of the left handle 1. A rotating constraint groove 13 is provided on the forward rotation pressing block 12. Two rotating connecting rods 10 are respectively inserted into the inner side of the rotating constraint groove 13 from both ends of the forward rotation pressing block 12. A pressing rotating block 18 is provided on one side of the forward rotation pressing block 12. One end of the pressing rotating block 18 abuts against the forward rotation button 17. A limiting fixing block 11 is provided on one side of the left handle 1. One end of the forward rotation pressing block 12 passes through the left handle 1 and the right handle 14 and is suspended in the air.

[0034] When in use, when the electric screwdriver 15 needs to rotate in the forward direction, press the suspended end of the forward rotation pressing block 12 with your thumb. Using the rotating connecting rod 10 on the left handle 1 and the right handle 14 as the axis, the forward rotation pressing block 12 will rotate around the rotation constraint groove 13. The pressing rotating block 18 on the other side of the forward rotation pressing block 12 will move downward accordingly, accurately pressing the forward rotation button 17 of the electric screwdriver 15, triggering the motor to start in the forward direction. During the rotation, the limiting fixing block 11 limits the rotation amplitude of the forward rotation pressing block 12 to ensure that the pressing force is uniform and stable.

[0035] When the electric screwdriver 15 needs to rotate in the reverse direction, press the thumb pressing block 8 with your thumb, which will cause the connecting fixing block 4 to slide inside the limiting connecting plate 2. At the same time, it will compress the reset spring 6 and cause the pressing connecting block 7 to move towards the reverse button 16. The pressing connecting block 7 will directly press the reverse button 16, triggering the motor to start in reverse. After releasing the thumb, the reset spring 6 will release its elastic potential energy, push the connecting fixing block 4 to reset, and cause the pressing connecting block 7 to disengage from the reverse button 16, stopping the reverse rotation.

[0036] The positioning constraint block 3 and the constraint fixing block 5 on the inner side of the limiting connecting plate 2 form an elastic limiting structure through the return spring 6, ensuring that the connecting fixing block 4 maintains linear movement during sliding and avoiding accidental button presses caused by shaking. The limiting constraint cover 9 fits snugly with the connecting fixing block 4, further improving the sealing of the pressing component and reducing dust entry that affects mechanical performance. The device uses dual buttons to independently control forward and reverse rotation and the elastic reset structure to ensure operational stability, enabling precise one-handed control of the electric screwdriver. It is especially suitable for high-intensity work scenarios, significantly improving work efficiency and ease of use.

[0037] The remaining structure is the same as that in Example 1.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dual-button start handle adapted to an electric screwdriver, characterized in that: The assembly includes a left handle (1) and a limiting connecting plate (2) on one side of the left handle (1), a positioning constraint block (3) on one side of the limiting connecting plate (2), and a return spring (6) on the inner side of the limiting connecting plate (2); a pressing assembly including a connecting fixing block (4) installed on the inner side of the limiting connecting plate (2), a pressing connecting block (7) on one side of the connecting fixing block (4), and a thumb pressing block (8) on one side of the connecting fixing block (4); and a rotating assembly including a right handle (14) installed on one side of the left handle (1), a rotating connecting rod (10) on the inner side of the right handle (14), and a forward rotating pressing block (12) between the left handle (1) and the right handle (14).

2. The dual-button start handle for electric screwdrivers according to claim 1, characterized in that: A constraint fixing block (5) is provided on one side of the connecting fixing block (4). The constraint fixing block (5) is located inside the limiting connecting plate (2). A return spring (6) is provided between the positioning constraint block (3) and the constraint fixing block (5). One end of the return spring (6) is connected to the constraint fixing block (5).

3. The dual-button start handle for an electric screwdriver according to claim 2, characterized in that: One end of the reset spring (6) is connected to the positioning constraint block (3), and a limiting constraint cover (9) is provided on one side of the limiting connecting plate (2). One side of the connecting fixing block (4) is in contact with one side of the limiting constraint cover (9).

4. A dual-button start handle for an electric screwdriver according to claim 1, characterized in that: An electric screwdriver (15) is provided between the left handle (1) and the right handle (14). A reverse button (16) is provided on one side of the electric screwdriver (15). One end of the reverse button (16) passes through the left handle (1) and the right handle (14) and is suspended in the air.

5. A dual-button start handle for an electric screwdriver according to claim 4, characterized in that: The reverse button (16) abuts against the pressing connection block (7) on one side, and the electric screwdriver (15) is provided with a forward button (17) on one side, which is located between the left handle (1) and the right handle (14).

6. A dual-button start handle for an electric screwdriver according to claim 1, characterized in that: A rotating connecting rod (10) is provided on one side of the left handle (1), and a rotating constraint groove (13) is provided on the forward rotating pressing block (12). The two rotating connecting rods (10) are respectively inserted into the inner side of the rotating constraint groove (13) from both ends of the forward rotating pressing block (12).

7. A dual-button start handle for an electric screwdriver according to claim 6, characterized in that: The forward rotation pressing block (12) has a pressing rotating block (18) on one side. One end of the pressing rotating block (18) abuts against the forward rotation button (17). The left handle (1) has a limiting fixing block (11) on one side. One end of the forward rotation pressing block (12) passes through the left handle (1) and the right handle (14) and is suspended in the air.

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