Lithium battery precise screwdriver convenient to assemble

Abstract

The lithium battery precision screwdriver comprises a shell, a battery bin, a transmission bin and an output bin are formed in the shell, a lithium battery is movably connected to the inner side wall of the battery bin in a clamped mode, and the inner side wall of the shell is further fixedly connected with a circuit board, a positive and negative rotation power switch and a control switch. A driving motor, a speed reducer and a jaw clutch are sequentially installed on the inner side wall of the transmission bin, the driving motor is electrically connected with a lithium battery through the circuit board, and the power output end of the driving motor is fixedly connected with the power input end of the speed reducer. The power output end of the speed reducer is fixedly connected with the power input end of the jaw clutch; modular design is achieved, bolt connection structures of two sets of shells are combined, production efficiency is greatly improved, assembly cost is reduced, a torque protection mechanism of the jaw clutch avoids screw loosening or equipment overload, a permanent magnet adsorption function prevents screws from falling off, and operation safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of screwdriver technology, specifically a lithium-ion precision screwdriver that is easy to assemble. Background Technology

[0002] In fields such as electronic equipment manufacturing and precision instrument repair, traditional lithium-ion battery screwdrivers suffer from problems such as low assembly efficiency, high operational risks, difficult maintenance, and poor portability. Specifically, their high internal integration leads to complex production and assembly, requiring extensive manual adjustments; the lack of torque control mechanisms easily damages screws or equipment; insufficient bit suction force causes screws to fall out; the enclosed design necessitates professional support for repairs; and the heavy metal casing and poor charging interface compatibility limit their application scenarios. Therefore, those skilled in the art have provided an easily assembled lithium-ion battery precision screwdriver to address the problems mentioned in the background. Utility Model Content

[0003] The purpose of this invention is to provide a lithium-ion precision screwdriver that is easy to assemble, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A precision lithium-ion screwdriver that is easy to assemble includes a housing. Inside the housing are a battery compartment, a transmission compartment, and an output compartment. A lithium battery is movably snapped into the inner wall of the battery compartment. A circuit board, a forward / reverse power switch, and a control switch are also fixedly connected to the inner wall of the housing. The forward / reverse power switch and the control switch are electrically connected to the circuit board. A drive motor, a reducer, and a jaw clutch are sequentially installed on the inner wall of the transmission compartment. The drive motor is electrically connected to the lithium battery through the circuit board. The power output end of the drive motor is fixedly connected to the power input end of the reducer, and the power output end of the reducer is fixedly connected to the power input end of the jaw clutch.

[0006] Furthermore, the housing consists of two sets, with several bolt holes on the surface of each housing. The two sets of housings are fixedly connected by bolt holes and external bolts to form a screwdriver housing.

[0007] Furthermore, the output compartment is equipped with a bearing, and a screwdriver head is rotatably connected to the output compartment through the bearing.

[0008] Furthermore, a permanent magnet is embedded in the slot of the screwdriver head.

[0009] Furthermore, the surface of the housing is provided with uniformly arranged anti-slip stripes, and the housing is made of engineering plastic material.

[0010] Furthermore, the side wall of the housing is provided with a Type-C interface for charging the lithium battery.

[0011] By adopting the above technical solution

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The independent partitioning of the battery compartment, transmission compartment, and output compartment enables a modular design. Combined with the bolted connection structure of the two sets of housings, it significantly improves production efficiency and reduces assembly costs. The torque protection mechanism of the jaw clutch prevents screw stripping or equipment overload, and the permanent magnet adsorption function prevents screws from falling off, thus improving operational safety.

[0014] 2. The engineering plastic shell with anti-slip stripe design combines lightweight and impact resistance. The Type-C interface supports charging anytime, anywhere, improving the ease of use of the tool. The detachable shell and modular layout make it easy to replace core components such as lithium batteries and drive motors, significantly reducing maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a precision lithium-ion screwdriver that is easy to assemble.

[0016] Figure 2 This is a schematic diagram of the internal structure of a precision lithium-ion screwdriver that is easy to assemble.

[0017] Figure 3 This is a schematic diagram of a planar structure of a precision lithium-ion screwdriver that is easy to assemble.

[0018] Figure 4 This is a side view of a precision lithium-ion screwdriver that is easy to assemble.

[0019] In the diagram: 1. Housing; 2. Bolt holes; 3. Lithium battery; 4. Type-C interface; 5. Circuit board; 6. Forward / reverse power switch; 7. Control switch; 8. Drive motor; 9. Reducer; 10. Jaw clutch; 11. Bearing; 12. Screwdriver bit; 13. Battery compartment; 14. Transmission compartment; 15. Output compartment. Detailed Implementation

[0020] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Please see Figures 1-4This utility model provides an embodiment of a lithium-ion precision screwdriver that is easy to assemble. It includes a housing 1, with a battery compartment 13, a transmission compartment 14, and an output compartment 15 inside. A lithium battery 3 is movably held in place on the inner wall of the battery compartment 13. A circuit board 5, a forward / reverse power switch 6, and a control switch 7 are also fixedly connected to the inner wall of the housing 1. The forward / reverse power switch 6 and control switch 7 are electrically connected to the circuit board 5. A drive motor 8, a reducer 9, and a jaw clutch 10 are sequentially installed on the inner wall of the transmission compartment 14. The drive motor 8 is electrically connected to the lithium battery 3 via the circuit board 5. The power output end of the drive motor 8 is fixedly connected to the power input end of the reducer 9, and the power output end of the reducer 9 is fixedly connected to the power input end of the jaw clutch 10. After being charged through a Type-C interface 4, the lithium battery 3 provides power to the drive motor 8. The circuit board 5 acts as a control center to manage power distribution. The user can control the output of the drive motor 8 via a Type-C interface 4. The reverse power switch 6 switches the current direction to achieve forward and reverse rotation of the drive motor 8, thereby controlling the rotation direction of the screwdriver head 12. The control switch 7 can precisely regulate the output power of the drive motor 8. Combined with the mechanical adjustment of the reducer 9 and the jaw clutch 10, when the preset torque is reached, the jaw clutch 10 automatically slips to prevent the screw from being over-tightened or damaged. The power of the drive motor 8 is reduced and increased in torque by the reducer 9, and then transmitted to the screwdriver head 12 supported by the bearing 11 through the jaw clutch 10. The permanent magnet ensures that the bit firmly attracts the screw, achieving precision operation. The independent partitioning of the battery compartment 13, transmission compartment 14 and output compartment 15 realizes modular design. Combined with the bolt connection structure of the two sets of housings 1, it greatly improves production efficiency and reduces assembly costs. The torque protection mechanism of the jaw clutch 10 avoids screw stripping or equipment overload, and the permanent magnet attraction function prevents the screw from falling off, improving operational safety.

[0022] In this embodiment, there are two sets of housings 1. Several bolt holes 2 are provided on the surface of housing 1. The two sets of housings 1 are fixedly connected by bolt holes 2 and external bolts to form a screwdriver housing. The output compartment 15 is equipped with a bearing 11. The output compartment 15 is rotatably connected to the screwdriver head 12 through the bearing 11. A permanent magnet is embedded in the slot of the screwdriver head 12. The surface of housing 1 is provided with uniformly arranged anti-slip stripes. Housing 1 is made of engineering plastic material. The side wall of housing 1 is provided with a Type-C interface 4 for charging the lithium battery 3. The engineering plastic housing with anti-slip stripe design has both lightweight and impact resistance. The Type-C interface 4 supports charging anytime and anywhere, improving the ease of use of the tool. The detachable housing 1 and modular layout make it easy to replace core components such as lithium battery 3 and drive motor 8, significantly reducing maintenance costs.

[0023] After the lithium battery 3 is charged through the Type-C interface 4, it provides power to the drive motor 8. The circuit board 5 acts as the control center to manage the power distribution. The user can switch the current direction through the forward and reverse power switch 6 to realize the forward and reverse rotation of the drive motor 8, thereby controlling the rotation direction of the screwdriver head 12. The control switch 7 can precisely regulate the output power of the drive motor 8. Combined with the mechanical adjustment of the reducer 9 and the jaw clutch 10, when the preset torque is reached, the jaw clutch 10 automatically slips to prevent the screw from being over-tightened or damaged. The power of the drive motor 8 is reduced and increased in torque by the reducer 9, and then transmitted to the bearing 11 (supporting the screwdriver head 12) through the jaw clutch 10. The permanent magnet ensures that the bit firmly attracts the screw, realizing precision operation.

[0024] The independent partitioning of the battery compartment 13, transmission compartment 14, and output compartment 15 enables a modular design. Combined with the bolted connection structure of the two sets of housings 1, this significantly improves production efficiency and reduces assembly costs. The torque protection mechanism of the jaw clutch 10 prevents screw stripping or equipment overload, while the permanent magnet adsorption function prevents screws from falling off, improving operational safety. The engineering plastic housing with anti-slip stripe design combines lightweight and impact resistance. The Type-C interface 4 supports charging anytime, anywhere, improving the ease of use of the tool. The detachable housing 1 and modular layout make it easy to replace core components such as the lithium battery 3 and drive motor 8, significantly reducing maintenance costs.

[0025] This specification describes the embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision lithium-ion screwdriver that is easy to assemble, characterized in that, The device includes a housing (1), which has a battery compartment (13), a transmission compartment (14) and an output compartment (15) inside. A lithium battery (3) is movably attached to the inner wall of the battery compartment (13). A circuit board (5), a forward and reverse power switch (6) and a control switch (7) are also fixedly connected to the inner wall of the housing (1). The forward and reverse power switch (6) and the control switch (7) are electrically connected to the circuit board (5). A drive motor (8), a reducer (9) and a jaw clutch (10) are installed sequentially on the inner wall of the transmission compartment (14). The drive motor (8) is electrically connected to the lithium battery (3) through the circuit board (5). The power output end of the drive motor (8) is fixedly connected to the power input end of the reducer (9). The power output end of the reducer (9) is fixedly connected to the power input end of the jaw clutch (10).

2. The lithium-ion precision screwdriver according to claim 1, characterized in that, The housing (1) consists of two sets, and several bolt holes (2) are provided on the surface of the housing (1). The two sets of housing (1) are fixedly connected by bolt holes (2) and external bolts to form a screwdriver shell.

3. The lithium-ion precision screwdriver according to claim 1, characterized in that, The output compartment (15) is equipped with a bearing (11), and a screwdriver head (12) is rotatably connected to the output compartment (15) through the bearing (11).

4. The lithium-ion precision screwdriver according to claim 3, characterized in that, A permanent magnet is embedded in the slot of the screwdriver head (12).

5. A precision lithium-ion screwdriver for easy assembly according to claim 1, characterized in that, The shell (1) has uniformly arranged anti-slip stripes on its surface, and the shell (1) is made of engineering plastic material.

6. The lithium-ion precision screwdriver according to claim 1, characterized in that, The housing (1) has a Type-C interface (4) for charging the lithium battery (3) on its side wall.

Images