Modular electric drill
Patent Information
- Application Number
- CN202522793322.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-12-30
AI Technical Summary
[0002]现有电钻多为单一功能设计，如需实现钻孔、打磨等多用途，需购置多个独立工具，存在携带不便、成本较高的问题，部分模块化电钻采用螺纹连接或插拔式结构，存在连接稳定性不足的缺陷，例如，螺纹连接在频繁更换时操作繁琐，且长期使用易出现滑丝，而插拔式结构虽更换快速，但高速运转时易产生径向晃动，影响加工精度
本实用新型整体结构简单紧凑，通过主体模块、功能模块和快拆锁合机构相互配合的模块化设置大大减少操作员对工具的携带量，提高对本装置的便携性，通过快拆锁合机构的设置能够实现对工作部件进行快速更换，同时与连接座相互配合大大提高了工作部件呈装配状态时的安装精度，保证连接稳定性问题。
Smart Images
Figure CN224780498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power tool technology, and in particular to a modular electric drill. Background Technology
[0002] Most existing electric drills are single-function designs. To achieve multiple uses such as drilling and grinding, multiple separate tools need to be purchased, which is inconvenient to carry and costly. Some modular electric drills use threaded or plug-in connections, which have the drawback of insufficient connection stability. For example, threaded connections are cumbersome to change frequently and are prone to stripping after long-term use, while plug-in structures, although quick to replace, are prone to radial wobble at high speeds, affecting machining accuracy. Therefore, we propose a modular electric drill. Utility Model Content
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a modular electric drill.
[0004] The technical solution of this utility model is as follows: A modular electric drill includes a main module and a functional module. The main module includes a shell, a drive motor is disposed inside the shell, a battery is disposed at the bottom of the shell, and a control circuit board is disposed inside the shell between the drive motor and the battery. The functional module includes a connector disposed on the shell at the end away from the battery. A working part is disposed on one side of the connector. A quick-release locking mechanism is disposed between one end of the shell and the connector. The quick-release locking mechanism includes a mounting cavity disposed on the inner wall of one end of the shell. An electromagnetic coil is disposed in the mounting cavity. A transmission iron core is disposed in the inner ring of the electromagnetic coil. A return spring is disposed between one side of the transmission iron core and the connector.
[0005] Preferably, the outer casing has an adjustment button located on the handheld part, the mounting end of the drive motor is installed corresponding to the inner cavity of the outer casing, a speed adjustment gear set is provided on the inner ring of one end of the outer casing, the output end of the drive motor is installed corresponding to the connection end of the speed adjustment gear set, and the mounting end of the battery is installed corresponding to the bottom end of the outer casing.
[0006] Preferably, the mounting end of the control circuit board is installed corresponding to the inner wall of the housing, and the drive motor, battery and adjustment button are all electrically connected to the control circuit board.
[0007] Preferably, the mounting end of the connector is installed corresponding to one end of the outer ring of the housing. The working component includes a working end, and a mounting pin is provided on one side of the working end. The end of the mounting pin near the working end is polygonal, and the end of the mounting pin away from the working end is cylindrical.
[0008] Preferably, the mounting end of the mounting cavity is installed corresponding to the inner wall of one end of the outer shell, the mounting end of the electromagnetic coil is installed corresponding to the inner cavity of the mounting cavity, the transmission iron core is cylindrical, and the outer ring of one end of the transmission iron core is in contact with the inner wall of the connecting seat.
[0009] Preferably, the end of the mounting pin furthest from the working end is installed corresponding to the inner wall of the transmission iron core, the connecting seat has a mounting shaft hole at the middle position, the end of the mounting pin closest to the working end is installed corresponding to the mounting shaft hole, and the outer ring of the working end is installed corresponding to the inner wall of the connecting seat furthest from the main module.
[0010] Preferably, one end of the reset spring is installed corresponding to one side of the mounting cavity, and the other end of the reset spring is installed corresponding to one end of the transmission core.
[0011] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model has a simple and compact overall structure. The modular design, which combines the main module, functional modules, and quick-release locking mechanism, greatly reduces the amount of tools the operator needs to carry, thus improving the portability of the device. The quick-release locking mechanism enables rapid replacement of working parts, and its interaction with the connecting seat greatly improves the installation accuracy of the working parts when they are in the assembly state, ensuring connection stability. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the structure of this utility model.
[0013] Reference numerals: 1. Main module; 11. Outer shell; 12. Drive motor; 13. Battery; 14. Control circuit board; 15. Adjustment button; 16. Speed adjustment gear set; 2. Functional module; 21. Connecting seat; 22. Working part; 221. Working end; 222. Mounting pin; 23. Mounting shaft hole; 3. Quick-release locking mechanism; 31. Mounting cavity; 32. Electromagnetic coil; 33. Transmission iron core; 34. Return spring. Detailed Implementation
[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0015] like Figure 1-3As shown, this utility model proposes a modular electric drill, including a main module 1 and a functional module 2. The main module 1 includes a shell 11, inside which a drive motor 12 is installed. The mounting end of the drive motor 12 is correspondingly installed in the inner cavity of the shell 11, and the mounting end of the drive motor 12 is fixedly connected to the inner cavity of the shell 11. A heat dissipation and ventilation groove is provided on the shell 11 at the position corresponding to the drive motor 12. A speed adjustment gear set 16 is provided on the inner ring of one end of the shell 11. The output end of the drive motor 12 is correspondingly installed in the connection end of the speed adjustment gear set 16, and the mounting end of the speed adjustment gear set 16 is fixedly connected to the inner cavity of the shell 11. The speed adjustment... The connecting end of the gear set 16 is fixedly connected to the output end of the drive motor 12. The speed adjustment gear set 16 can adjust the speed of the drive motor 12 to adapt to the power requirements of different functional modules 2. A battery 13 is provided at the bottom of the housing 11. The mounting end of the battery 13 is installed corresponding to one bottom end of the housing 11. The mounting end of the battery 13 is slidably engaged with the inner cavity of the bottom end of the housing 11. The slidable engagement between the battery 13 and the housing 11 facilitates quick installation and removal of the battery 13 by the operator, allowing for easy replacement and meeting the needs of long-term operation. The drive motor 12... A control circuit board 14 is disposed within the housing 11 between the battery 13 and the housing 11. The mounting end of the control circuit board 14 is installed corresponding to the inner wall of the housing 11 and is fixedly connected to the inner wall of the housing 11. The control circuit board 14 integrates a torque detection unit, a speed adjustment unit, and an identification module. The torque detection unit can detect the output torque of the drive motor 12. The speed adjustment unit is electrically connected to the drive motor 12. The control circuit board 14 can adjust the output speed of the drive motor 12 through the speed adjustment unit according to the type of functional module connected. The identification module can identify the mounting pin inserted into the transmission iron core 33. One end of 222 is identified, thereby automatically adjusting the speed of the drive motor 12 to adapt to the corresponding working mode. An adjustment button 15 is provided on the hand-held part of the outer shell 11. An installation groove is provided on the hand-held part of the outer shell 11. The outer side of the adjustment button 15 fits against the inner wall of the installation groove. The mounting end of the adjustment button 15 is slidably connected to the inner wall of the installation groove. The setting of the adjustment button 15 makes it convenient for the operator to adjust the device according to the work requirements. The drive motor 12, the battery 13 and the adjustment button 15 are all electrically connected to the control circuit board 14. The setting of the main module 1 allows the operator to adapt and adjust according to different work requirements. Functional module 2 includes a connector 21 disposed on the end of the housing 11 away from the battery 13. The mounting end of the connector 21 is correspondingly installed on the outer ring of one end of the housing 11 and is fixedly connected to the outer ring of one end of the housing 11. A working component 22 is disposed on one side of the connector 21. The working component 22 can be any one of a drilling module, a grinding module, or a polishing module. The working component 22 includes a working end 221. A mounting pin 222 is disposed on one side of the working end 221. One side of the working end 221 is fixedly connected to one end of the mounting pin 222. The mounting pin 222 and the working end 221 are integrally formed. The end of the mounting pin 222 near the working end 221 is polygonal. The end of the mounting pin 222 away from the working end 221 is polygonal. One end is cylindrical. A quick-release locking mechanism 3 is provided between one end of the outer casing 11 and the connecting seat 21. The quick-release locking mechanism 3 includes a mounting cavity 31 disposed on the inner wall of one end of the outer casing 11. The mounting end of the mounting cavity 31 is installed corresponding to the inner wall of one end of the outer casing 11 and is fixedly connected to the outer casing 11. An electromagnetic coil 32 is disposed inside the mounting cavity 31. The mounting end of the electromagnetic coil 32 is installed corresponding to the inner cavity of the mounting cavity 31 and is fixedly connected to the inner cavity of the mounting cavity 31. The electromagnetic coil 32 is electrically connected to the control circuit board 14 and the battery 13 respectively. A transmission iron core 33 is disposed in the inner ring of the electromagnetic coil 32. The transmission iron core 33 is cylindrical. The outer ring of one end of the transmission iron core 33 is connected to the connecting seat 21. The inner walls of the connecting seat 21 fit together, and the outer ring of the transmission core 33 is slidably connected to the inner wall of the connecting seat 21. The transmission core 33 can be adjusted between the mounting cavity 31 and the connecting seat 21. An annular groove is provided on the inner wall of the transmission core 33. One end of the mounting pin 222 away from the working end 221 is installed corresponding to the inner wall of the transmission core 33. The cylindrical end of the mounting pin 222 is tightly fitted to the inner wall of the transmission core 33. A return spring 34 is provided between one side of the transmission core 33 and the connecting seat 21. One end of the return spring 34 is installed corresponding to one side of the mounting cavity 31 and fixedly connected to the mounting cavity 31. The other end of the return spring 34 is installed corresponding to one end of the transmission core 33. One end is fixedly connected to the transmission iron core 33. The reset spring 34 supports the transmission iron core 33 and allows it to be adjusted. When the electromagnetic coil 32 is energized, it presses the reset spring 34 through the transmission iron core 33, causing the transmission iron core 33 to slide towards the mounting cavity 31. At this time, the annular groove on the inner wall of the transmission iron core 33 engages with the mounting pin 222. The connecting seat 21 has a mounting shaft hole 23 at the middle position. The end of the mounting pin 222 near the working end 221 is installed correspondingly to the mounting shaft hole 23. The polygonal end of the mounting pin 222 is tightly fitted to the inner wall of the mounting shaft hole 23. The mounting pin 222 and the mounting shaft hole 23 are slidably connected.The detachable design of the working component 22 and the connecting seat 21 facilitates the operator's replacement of different working components 22, thus better adapting to different working conditions. The outer ring of the working end 221 corresponds to the inner wall of the connecting seat 21 at the end away from the main module 1, and the outer ring of the working end 221 fits tightly against the inner wall of the connecting seat 21. The quick-release locking mechanism 3 enables rapid replacement of the working component 22, and its cooperation with the connecting seat 21 greatly improves the installation accuracy of the working component 22 in the assembled state, ensuring connection stability. The modular design of the main module 1, functional module 2, and quick-release locking mechanism 3 greatly reduces the amount of tools the operator needs to carry, improving the portability of the device.
[0016] In this embodiment, the operator selects the working part 22 according to the work requirements, and then inserts the mounting pin 222 into the mounting shaft hole 23, so that the cylindrical end of the mounting pin 222 is inserted into the transmission iron core 33. At this time, the control circuit board 14 identifies the mounting pin 222 and sends a work command to the electromagnetic coil 32. The electromagnetic coil 32 is powered by the battery 13 and works by squeezing the return spring 34 through the transmission iron core 33, causing the transmission iron core 33 to slide towards the mounting cavity 31. At this time, the annular groove on the inner wall of the transmission iron core 33 and the mounting pin 222 are engaged with each other, thereby completing the installation of the working part 22. Then the operator presses the adjustment button 15 to start the electric drill.
[0017] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A modular electric drill, comprising a main body module (1) and a functional module (2), characterized in that: The main module (1) includes a housing (11), a drive motor (12) is provided inside the housing (11), a battery (13) is provided at the bottom of the housing (11), a control circuit board (14) is provided between the drive motor (12) and the battery (13) inside the housing (11), and the functional module (2) includes a connecting seat (21) provided on the housing (11) away from the battery (13), a working part (22) is provided on one side of the connecting seat (21), a quick-release locking mechanism (3) is provided between one end of the housing (11) and the connecting seat (21), the quick-release locking mechanism (3) includes an installation cavity (31) provided on the inner wall of one end of the housing (11), an electromagnetic coil (32) is provided inside the installation cavity (31), a transmission iron core (33) is provided in the inner ring of the electromagnetic coil (32), and a return spring (34) is provided between one side of the transmission iron core (33) and the connecting seat (21).
2. A modular electric drill according to claim 1, characterized in that, An adjustment button (15) is provided on the hand-held part of the outer shell (11). The mounting end of the drive motor (12) is installed in the inner cavity of the outer shell (11). A speed adjustment gear set (16) is provided on the inner ring of one end of the outer shell (11). The output end of the drive motor (12) is installed in the connection end of the speed adjustment gear set (16). The mounting end of the battery (13) is installed in the bottom end of the outer shell (11).
3. A modular electric drill according to claim 1, characterized in that, The mounting end of the control circuit board (14) is installed corresponding to the inner wall of the outer casing (11), and the drive motor (12), the storage battery (13) and the adjustment button (15) are all electrically connected to the control circuit board (14).
4. A modular electric drill according to claim 1, characterized in that, The mounting end of the connecting seat (21) is installed corresponding to one end of the outer ring of the outer shell (11). The working part (22) includes a working end (221). A mounting pin (222) is provided on one side of the working end (221). The end of the mounting pin (222) near the working end (221) is polygonal, and the end of the mounting pin (222) away from the working end (221) is cylindrical.
5. A modular electric drill according to claim 1, characterized in that, The mounting end of the mounting cavity (31) is installed corresponding to the inner wall of one end of the outer shell (11), the mounting end of the electromagnetic coil (32) is installed corresponding to the inner cavity of the mounting cavity (31), the transmission iron core (33) is cylindrical, and the outer ring of one end of the transmission iron core (33) is in contact with the inner wall of the connecting seat (21).
6. A modular electric drill according to claim 4, characterized in that, The end of the mounting pin (222) away from the working end (221) is installed corresponding to the inner wall of the transmission iron core (33). The connecting seat (21) has a mounting shaft hole (23) at the middle position. The end of the mounting pin (222) near the working end (221) is installed corresponding to the mounting shaft hole (23). The outer ring of the working end (221) is installed corresponding to the inner wall of the connecting seat (21) away from the main module (1).
7. A modular electric drill according to claim 1, characterized in that, One end of the reset spring (34) is installed corresponding to one side of the mounting cavity (31), and the other end of the reset spring (34) is installed corresponding to one end of the transmission core (33).