Hand-held lithium battery electric drill
By incorporating a sleeve and limiting structure into the handle of a handheld lithium-ion drill, the problem of the handle not fitting the size of the hand is solved, achieving stable grip and precise control, thus improving efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGKANG LINGWEI ELECTRIC CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-16
AI Technical Summary
The handles of existing handheld lithium-ion electric drills cannot be adapted to different hand sizes, resulting in an unstable grip. In addition, the switch is not easy to find, which affects the efficiency of use.
A sleeve is installed on the handle, with multiple finger grooves and limit holes at different angles. Combined with a limit block and spring structure, the sleeve can be rotated to a comfortable handheld position and switch position, and precise control is achieved through a continuously variable speed switch.
It improves handheld stability and efficiency, reduces hand fatigue, and ensures operational safety and accuracy.
Smart Images

Figure CN224359399U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery drill technology, and in particular to handheld lithium battery drills. Background Technology
[0002] Currently, handheld lithium-ion electric drills are commonly used tools for drilling, driving screws, and removing screws.
[0003] In the existing technology, the electric drill and the handle are integrated. When using a handheld electric drill, the operator usually grips the handle tightly. However, the handle cannot be adapted to the size of the operator's palm. For example, in the published document CN218656942U, the size of the grip is adjusted according to the size of the palm. The adjustment is cumbersome and it is difficult to find a suitable hand position and an easy-to-use switch position, which can lead to an unstable grip.
[0004] Therefore, the applicant submits this application. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by providing a handheld lithium-ion electric drill, which uses finger grooves at multiple different angles to allow the hand to be held in a suitable position to drive the rotation of the socket.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0007] A handheld lithium-ion electric drill includes a drill body, a handle at the tail of the drill body, a sleeve rotatably mounted on the handle, two or more limiting holes on the handle, a groove on the inner wall of the sleeve, a spring mounted in the groove, and a limiting block adapted to the limiting holes at the upper end of the spring.
[0008] In the above scheme, preferably, the limiting holes are arranged in a circular pattern on the handle.
[0009] In the above scheme, preferably, the limiting hole is an arc-shaped hole and the limiting block is an arc-shaped limiting block.
[0010] In the above scheme, preferably, the sleeve is provided with multiple sets of finger grooves, and the finger grooves are distributed at different angles from top to bottom.
[0011] In the above scheme, preferably, the sleeve material can be thermoplastic rubber or thermoplastic elastomer.
[0012] In the above scheme, preferably, a switch is provided above the handle, and the switch position is suitable for the finger slots in various positions.
[0013] In the above scheme, preferably, the switch is a continuously variable speed switch.
[0014] In the above scheme, preferably, a box is provided at the bottom of the handle, and the box is used to install the lithium battery that provides power.
[0015] In the above scheme, preferably, the front end of the electric drill body is provided with a torque adjustment cover, and the front end of the torque adjustment cover is provided with a chuck, which is used to fix the drill bit.
[0016] The beneficial effects of this utility model are as follows: This utility model has a sleeve that is rotatably provided on the handle, and multiple finger grooves at different angles are provided on the sleeve, which can adapt to the different hand positions of the staff. By providing multiple limiting grooves on the handle and limiting blocks on the inner wall of the sleeve, the sleeve can be rotated to a convenient switch position, which can improve the staff's ability to find a comfortable hand position and rotate to a convenient switch position, thereby improving work efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the present invention.
[0018] Figure 2 This is a schematic diagram of the handle structure in this utility model.
[0019] Figure 3 This is a schematic diagram of the sleeve structure in this utility model.
[0020] Figure 4 This is a cross-sectional view of the sleeve in this utility model.
[0021] Figure 5 for Figure 4 Enlarged diagram of point A in the middle. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
[0023] See Figures 1-5 A handheld lithium-ion electric drill includes a drill body 1, a handle 2 at the tail of the drill body 1, the handle 2 being the position for the operator to hold the drill body 1, a housing 10 at the bottom of the handle 2, and a lithium-ion battery installed in the housing 10. The lithium-ion battery provides power, extends working time, improves energy efficiency, and ensures stable operation of the tool. A torque adjustment cover 11 is provided at the front end of the drill body 1, which can adjust the output torque of the drill to adapt to different materials and working scenarios. A chuck 12 is provided at the front end of the torque adjustment cover 11, which can stably clamp the drill bit to prevent the drill bit from slipping or falling off during rotation, thereby improving work efficiency and ensuring work safety.
[0024] Specifically, a sleeve 3 is rotatably mounted on the handle 2. The sleeve 3 can be made of thermoplastic rubber or thermoplastic elastomer. Thermoplastic rubber or thermoplastic elastomer materials have excellent elasticity and skin-friendly feel, which can provide a comfortable grip experience, reduce hand fatigue, and provide better grip during use, ensuring the stability and safety of operation. In order to allow the operator to find a comfortable and suitable hand position, as shown in the figure, multiple finger grooves 8 are provided on the sleeve 3, which are arranged at different angles from top to bottom, so that the operator can find a suitable hand position and improve the grip of the drill body 1.
[0025] A switch 9 is located above the handle 2. The switch 9 is a continuously variable speed switch. The main function of the continuously variable speed switch is to allow users to continuously and smoothly adjust the speed of the electric drill according to the needs of specific tasks, thereby providing more precise control and adaptability. The position setting of the switch 9 can be used in the position of each finger groove 8.
[0026] Furthermore, to enable staff to find the appropriate switch 9 position, multiple limiting holes 4 are provided on the handle 2, arranged in a circular pattern. A groove 5 is provided on the inner wall of the sleeve 3, and a spring 6 is installed inside the groove 5. The bottom end of the spring 6 is fixed inside the groove 5. A limiting block 7 that matches the limiting hole 4 is provided on the upper end of the spring 6. The limiting hole 4 and the limiting block 7 are both arc-shaped, allowing the sleeve 3 to be easily rotated and limited on the handle 2. Since both the limiting hole 4 and the limiting block 7 are arc-shaped, when the sleeve 3 is rotated, the limiting block 4 moves away from the limiting hole 7 and the spring retracts. The limiting block 7 moves along the outer wall of the handle 2 into the next limiting hole 4 until it is rotated to a comfortable switch 9 position. Rotating the sleeve 3 provides the staff with a convenient position to press the switch 9.
[0027] To improve the aesthetics of the handheld part, the length of the sleeve 3 is matched with the length of the handle 2. When the operator adjusts it to a comfortable handheld position, the limiting hole 4 of the handle 2 cooperates with the limiting block 7 inside the sleeve 3, which improves the operator's handheld stability and increases work efficiency when the electric drill is working.
[0028] Working principle: With multiple sets of finger grooves 8 at different angles, the operator can grip the sleeve 3 in a comfortable position. Since the limiting hole 4 and the limiting block 7 are both arc-shaped, when the sleeve 3 is rotated, the limiting block 7 moves away from the limiting hole 4 and the spring retracts. The limiting block 4 moves along the outer wall of the handle 2 into the next limiting hole 4 until it is rotated to a comfortable position for the switch 9. This allows the operator to find a comfortable position for holding the sleeve in the finger groove 8 and rotate to a position that is easy to press the switch 9 for work.
[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A handheld lithium-ion electric drill, comprising a drill body (1), characterized in that: The electric drill body (1) includes a handle (2) at its tail end. A sleeve (3) is rotatably mounted on the handle (2). Two or more limiting holes (4) are provided on the handle (2). A groove (5) is provided on the inner wall of the sleeve (3). A spring (6) is provided in the groove (5). A limiting block (7) that matches the limiting hole (4) is provided at the upper end of the spring (6).
2. The handheld lithium-ion electric drill according to claim 1, characterized in that: The limiting holes (4) are arranged in a circular pattern on the handle (2).
3. The handheld lithium-ion electric drill according to claim 1, characterized in that: The limiting hole (4) is an arc-shaped hole, and the limiting block (7) is an arc-shaped limiting block.
4. The handheld lithium-ion electric drill according to claim 1, characterized in that: The sleeve (3) is provided with multiple sets of finger grooves (8), which are distributed at different angles from top to bottom.
5. The handheld lithium-ion electric drill according to claim 1, characterized in that: The sleeve (3) can be made of thermoplastic rubber or thermoplastic elastomer.
6. The handheld lithium-ion electric drill according to claim 1, characterized in that: A switch (9) is provided above the handle, and the position of the switch (9) is adapted to the finger slot (5) at various positions.
7. The handheld lithium-ion electric drill according to claim 6, characterized in that: The switch (9) is a continuously variable speed switch.
8. The handheld lithium-ion electric drill according to claim 1, characterized in that: The bottom of the handle is provided with a housing (10), which is used to install a lithium battery that provides power.
9. The handheld lithium-ion electric drill according to claim 1, characterized in that: The electric drill body (1) is provided with a torque adjustment cover (11) at the front end, and a chuck (12) is provided at the front end of the torque adjustment cover (11). The chuck (12) is used to fix the drill bit.