A hand-held pistol drill with a speed control

Abstract

The application relates to the technical field of electric tools, and discloses a handheld pistol drill convenient to control speed, which comprises a handle, the top of the handle is fixedly connected with a shell, the top of the shell is fixedly connected with a drill body, the inner wall of the shell is fixedly connected with a hollow column, the inner wall of the shell is fixedly connected with a convex strip, the outer wall of the convex strip is movably connected with a pressing assembly, and the inner wall of the shell is fixedly connected with a resistance assembly. Through the resistance assembly, the corresponding trigger position can be automatically memorized according to the last use state of an operator, when the pistol drill is used again and pressed to the position, the resistance borne by the trigger is changed from single spring action to double spring joint action, the resistance is increased, definite tactile feedback is provided for the operator, the operator can perceive the previously set working position, the operator can realize self-defined speed control according to actual machining requirements, and the repeatability of operation is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of power tool technology, specifically to a handheld pistol drill that is easy to control in terms of speed. Background Technology

[0002] An electric drill is a type of power tool that uses an electric motor to drive an output shaft. It is widely used in industries such as construction, decoration, and furniture, and is used to drill holes or pierce objects.

[0003] Patent application CN202320385604.7 discloses a brushless pistol drill, characterized by comprising a housing, a motor disposed within the housing, a reduction mechanism connected to the output shaft of the motor, a speed sensor for detecting the speed of the main gear disposed on the main gear of the reduction mechanism, a controller connected to the speed sensor disposed outside the housing and electrically connected to the speed sensor, the controller also being connected to the motor and controlling the motor speed, and a comparison module disposed within the controller for comparing the instantaneous speed detected by the speed sensor with the speed of the pistol drill at a gear position; when the instantaneous speed and the speed of the gear position are inconsistent, the controller adjusts the instantaneous speed to be consistent with the speed of the gear position.

[0004] While existing equipment can control the speed of a pistol drill by adjusting the state of the planetary gears and regulating the voltage, the planetary gears typically only offer two speed settings, high and low, with a limited range that is difficult to meet diverse processing needs. Voltage regulation, on the other hand, relies on the operator's feel and experience when pressing the trigger, lacking clear gear feedback, which leads to unstable speed control and poor repeatability. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a handheld pistol drill that is easy to control in terms of speed, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a handheld pistol drill that is easy to control speed, comprising a handle, a housing fixedly connected to the top of the handle, a drill body fixedly connected to the top of the housing, a hollow column fixedly connected to the inner wall of the housing, a protruding strip fixedly connected to the inner wall of the housing, a pressing component movably connected to the outer wall of the protruding strip, a resistance component fixedly connected to the inner wall of the housing, a first connecting plate fixedly connected to the inner wall of the housing, a control component fixedly connected to the inner wall of the housing, and a sliding column fixedly connected to the inner wall of the housing;

[0007] The pressing component includes:

[0008] The trigger has a notch at its top. The outer wall of the trigger is movably connected to a raised strip. A first raised plate is fixedly connected to the rear side of the trigger. The inner wall of the first raised plate is movably connected to a hollow column. A first spring is fixedly connected to the inner wall of the first raised plate. The end of the first spring away from the first raised plate is fixedly connected to the hollow column. The outer wall of the first raised plate is connected to a speed control switch on the internal circuit board of the pistol drill. The speed of the pistol drill can be controlled according to the degree to which the trigger is pressed.

[0009] According to the above technical solution, the resistance component includes a fixed plate, the inner wall of the outer shell is fixedly connected to the fixed plate, a track is fixedly connected to the side of the fixed plate away from the outer shell, a first slider is movably connected to the outer wall of the track, a first force plate is fixedly connected to the bottom of the first slider, a second elastic component is fixedly connected to the outer wall of the first force plate, and the end of the second elastic component away from the first slider is fixedly connected to the outer shell. The first force plate is located in a notch, and the movement of the trigger can change the position of the first slider. By setting the resistance component, the corresponding trigger position can be automatically memorized according to the operator's previous usage state. When the trigger is used again and pressed to that position, the resistance on the trigger changes from the action of a single spring to the combined action of two springs, increasing the resistance and providing clear tactile feedback to the operator, allowing them to perceive the previously set working position. This enables the operator to achieve customized speed control according to actual processing needs, effectively improving the repeatability of the operation.

[0010] According to the above technical solution, a sliding plate is fixedly connected to the outer wall of the fixed plate, a sliding frame is movably connected to the outer wall of the sliding plate, a ratchet is fixedly connected to the side of the sliding frame away from the sliding plate, and a second connecting plate is fixedly connected to the top of the sliding frame, wherein the ratchet can move.

[0011] According to the above technical solution, a first connecting frame is fixedly connected to the rear side of the first slider, a strip plate is fixedly connected to the top of the first connecting frame, a first movable plate is rotatably connected to the inner wall of the strip plate through a bearing, a spring is fixedly connected to the outer wall of the strip plate, and the end of the spring away from the strip plate is fixedly connected to the first movable plate. The first movable plate can be locked in a ratchet rack to restrict the movement of the first force plate.

[0012] According to the above technical solution, a third connecting plate is provided at the top of the strip plate, and a first connecting rod is rotatably connected to the bottom of the third connecting plate via a bearing. The end of the first connecting rod away from the third connecting plate is rotatably connected to a second connecting plate. A second protruding plate is fixedly connected to the top of the third connecting plate, and a positioning groove is provided on the outer wall of the second protruding plate. A second connecting rod is rotatably connected to the end of the third connecting plate away from the first slider via a bearing, and a second slider is rotatably connected to the end of the second connecting rod away from the third connecting plate via a bearing. A toggle plate is fixedly connected to the end of the second slider away from the second connecting rod. The outer wall of the second slider is movably connected to the outer shell, and a first elastic component is fixedly connected to the top of the second slider. The top of the first elastic component is fixedly connected to the outer shell. The movement of the toggle plate can change the position of the ratchet rack. By setting a resistance component, the operator can flexibly choose whether to enable the speed memory function according to the specific usage situation. This is suitable for repetitive operations that require a fixed speed, as well as meeting the flexible needs of non-repetitive operations, thus enhancing the practicality and adaptability of the tool.

[0013] According to the above technical solution, the outer wall of the sliding column is movably connected to a second movable plate, the inner side of the second movable plate is fixedly connected to a positioning pin, the outer wall of the positioning pin is movably connected to a positioning groove, and the top of the second movable plate is rotatably connected to a force-bearing wheel through a bearing. When the positioning pin is embedded in the positioning groove, the position of the ratchet rack can be locked.

[0014] According to the above technical solution, the control component includes a second connecting frame, the outer wall of the second connecting frame is fixedly connected to the outer shell, a third movable plate is provided on the inner side of the second connecting frame, a first movable rod is fixedly connected to both the left and right sides of the third movable plate, a second force plate is fixedly connected to both the front and rear ends of the first movable rod, a third elastic component is fixedly connected to the inner wall of the second connecting frame, the end of the third elastic component away from the second connecting frame is fixedly connected to the third movable plate, a vertical plate is fixedly connected to the bottom of the third movable plate, and a pressing plate is fixedly connected to the bottom of the vertical plate, wherein the state of the pressing plate can change the position of the positioning pin.

[0015] According to the above technical solution, a second movable rod is provided on the rear side of the third movable plate. The outer wall of the second movable rod is movably connected to the outer shell. A hook-shaped plate is fixedly connected to the side of the second movable rod near the third movable plate. The hook-shaped plate is sleeved on the outer wall of the second force plate. A third spring is sleeved on the outer wall of the second movable rod. One end of the third spring is fixedly connected to the hook-shaped plate, and the end of the third spring away from the hook-shaped plate is fixedly connected to the outer shell. Pulling the second movable rod can change the position of the extrusion plate. By setting a control component, a one-button reset function is provided, which allows users to quickly clear the memorized speed position, facilitating rapid switching between different work tasks and improving operational convenience and work efficiency.

[0016] According to the above technical solution, a rotating disk is rotatably connected to the inner wall of the first connecting plate via a bearing. A movable block is fixedly connected to the bottom of the rotating disk. A fourth elastic component is fixedly connected to the inner wall of the outer shell. A fourth connecting plate is provided on the top of the fourth elastic component. A push plate is fixedly connected to the end of the fourth connecting plate near the third movable plate. The fourth elastic component is fixedly connected to the push plate away from the hollow column. A sliding groove is provided on the top of the fourth connecting plate. The inner wall of the sliding groove is movably connected to the movable block. The top of the rotating disk is fixedly connected to the rotating shaft of the turn switch in the pistol drill. By setting a control component, when switching the rotation direction of the pistol drill, the control component can automatically trigger the reset device to clear the previous speed memory state, avoid speed misoperation caused by the change of direction, reduce manual intervention, and improve operation convenience and work efficiency.

[0017] Compared with the prior art, the present invention provides a handheld pistol drill that is easy to control in terms of speed, and has the following beneficial effects:

[0018] 1. This invention, by setting a resistance component, can automatically memorize the corresponding trigger position based on the operator's previous usage state. When the trigger is used again and pressed to that position, the resistance on the trigger changes from the action of a single spring to the action of two springs, increasing the resistance and providing the operator with clear tactile feedback so that the operator can perceive the previously set working position. This allows the operator to achieve customized speed control according to actual processing needs, effectively improving the repeatability of the operation.

[0019] 2. By setting up a resistance component, the present invention allows operators to flexibly choose whether to enable the speed memory function according to the specific usage situation. It is suitable for repetitive operations that require a fixed speed, as well as meeting the flexible needs of non-repetitive operations, thus enhancing the practicality and adaptability of the tool.

[0020] 3. By setting up control components, this invention provides a one-click reset function, which allows users to quickly clear the memorized speed position, facilitating rapid switching between different work tasks and improving operational convenience and work efficiency.

[0021] 4. By setting up a control component, the present invention can automatically trigger a reset device to clear the previous speed memory state when switching the rotation direction of the pistol drill, thereby avoiding misoperation of the speed due to the change of direction, reducing manual intervention, and improving the convenience of operation and work efficiency. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 For the present invention Figure 1 Section of AA Figure 1 ;

[0026] Figure 4 For the present invention Figure 1 Section of AA Figure 2 ;

[0027] Figure 5 This is a schematic diagram of the pressing component of the present invention. Figure 1 ;

[0028] Figure 6 Schematic diagram of the resistance component of the present invention Figure 2 ;

[0029] Figure 7 Schematic diagram of the resistance component of the present invention Figure 3 ;

[0030] Figure 8 Schematic diagram of the resistance component of the present invention Figure 4 ;

[0031] Figure 9 Schematic diagram of the resistance component of the present invention Figure 5 ;

[0032] Figure 10 Schematic diagram of the resistance component of the present invention Figure 6 ;

[0033] Figure 11 This is a schematic diagram of the control component of the present invention. Figure 1 ;

[0034] Figure 12 This is a schematic diagram of the control component of the present invention. Figure 2 ;

[0035] Figure 13 This is a schematic diagram of the control component of the present invention. Figure 3 .

[0036] In the diagram: 1. Handle; 101. Housing; 102. Drill body; 103. Hollow column; 104. Raised strip; 105. First connecting plate; 106. First elastic component; 107. Sliding column; 108. Speed ​​control switch; 109. Direction switch; 2. Pressing component; 201. Trigger; 202. Notch; 203. First raised plate; 204. First spring; 3. Resistance component; 301. Fixed plate; 302. Rail; 303. Sliding plate; 304. Sliding frame; 305. Ratchet; 306. Second connecting plate; 307. First slider; 308. First force plate; 309. Second elastic component; 3010. First connecting frame; 3011. Strip plate; 3012. First movable plate; 3013. Spring; 3014. Third connecting plate 3015, First connecting rod; 3016, Second protruding plate; 3017, Positioning groove; 3018, Second movable plate; 3019, Second spring; 3020, Positioning pin; 3021, Force-bearing wheel; 3022, Second connecting rod; 3023, Second slider; 3024, Actuating plate; 4, Control assembly; 401, Second connecting frame; 402, Third movable plate; 403, Vertical plate; 404, Pressing plate; 405, Third elastic assembly; 406, First movable rod; 407, Second force-bearing plate; 408, Second movable rod; 409, Hook-shaped plate; 4010, Third spring; 4011, Fourth elastic assembly; 4012, Fourth connecting plate; 4013, Push plate; 4014, Slide groove; 4015, Rotating disk; 4016, Movable block. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] Examples of the 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 intended to explain the invention, and should not be construed as limiting the invention.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Example 1: See Figures 1-10 The present invention provides a technical solution: a handheld pistol drill that is easy to control speed, including a handle 1, a housing 101 fixedly connected to the top of the handle 1, a drill body 102 fixedly connected to the top of the housing 101, a hollow column 103 fixedly connected to the inner wall of the housing 101, a protruding strip 104 fixedly connected to the inner wall of the housing 101, a pressing component 2 movably connected to the outer wall of the protruding strip 104, a resistance component 3 fixedly connected to the inner wall of the housing 101, a first connecting plate 105 fixedly connected to the inner wall of the housing 101, a control component 4 fixedly connected to the inner wall of the housing 101, and a sliding column 107 fixedly connected to the inner wall of the housing 101.

[0041] The pressing assembly 2 includes: a trigger 201, with a notch 202 at its top; the outer wall of the trigger 201 is movably connected to a raised strip 104; a first raised plate 203 is fixedly connected to the rear side of the trigger 201; the inner wall of the first raised plate 203 is movably connected to a hollow column 103; a first spring 204 is fixedly connected to the inner wall of the first raised plate 203; one end of the first spring 204 away from the first raised plate 203 is fixedly connected to the hollow column 103; the outer wall of the first raised plate 203 is connected to a speed control switch 108 on the internal circuit board of the pistol drill; the speed of the pistol drill can be controlled according to the degree of pressing the trigger 201; in the memory function enabled state, as the trigger 201 moves, the notch 202 at its top will drive the first force plate 308 to move synchronously. 8. Further, the movement of the first slider 307, the first connecting frame 3010, and the strip plate 3011 causes the first movable plate 3012 to move accordingly. Since the connection between the first movable plate 3012 and the spring 3013 has a certain elasticity, the trigger 201 can continue to be pressed during this process. When the operator determines the target speed position and releases the trigger 201, the trigger resets under the action of the first spring 204, while the first force plate 308 cannot return to the initial position due to the obstruction of the ratchet 305, thus realizing position memory. In the next use, the trigger 201 is only resisted by the first spring 204 in the initial stage. When the notch 202 contacts the first force plate 308, it will be simultaneously resisted by the first spring 204 and the second elastic component 309, providing the operator with clear tactile feedback.

[0042] The resistance component 3 includes a fixed plate 301. The inner wall of the outer shell 101 is fixedly connected to the fixed plate 301. A track 302 is fixedly connected to the side of the fixed plate 301 away from the outer shell 101. A first slider 307 is movably connected to the outer wall of the track 302. A first force-bearing plate 308 is fixedly connected to the bottom of the first slider 307. A second elastic component 309 is fixedly connected to the outer wall of the first force-bearing plate 308. The end of the second elastic component 309 away from the first slider 307 is fixedly connected to the outer shell 101. The first force-bearing plate 308 is located in the notch 202. The movement of the trigger 201 can change the position of the first slider 307. A sliding plate 303 is fixedly connected to the outer wall of the fixed plate 301. A sliding frame 3 is movably connected to the outer wall of the sliding plate 303. 04. A ratchet rack 305 is fixedly connected to the side of the sliding frame 304 away from the sliding plate 303. A second connecting plate 306 is fixedly connected to the top of the sliding frame 304. The ratchet rack 305 is movable. A first connecting frame 3010 is fixedly connected to the rear side of the first slider 307. A strip plate 3011 is fixedly connected to the top of the first connecting frame 3010. A first movable plate 3012 is rotatably connected to the inner wall of the strip plate 3011 via a bearing. A spring 3013 is fixedly connected to the outer wall of the strip plate 3011. One end of the spring 3013 away from the strip plate 3011 is fixedly connected to the first movable plate 3012. The first movable plate 3012 can be engaged in the ratchet rack 305 to restrict the movement of the first force plate 308. A third connecting plate 3014 is provided at the top of the plate 3011. A first connecting rod 3015 is rotatably connected to the bottom of the third connecting plate 3014 via a bearing. The end of the first connecting rod 3015 away from the third connecting plate 3014 is rotatably connected to a second connecting plate 306. A second protruding plate 3016 is fixedly connected to the top of the third connecting plate 3014. A positioning groove 3017 is provided on the outer wall of the second protruding plate 3016. A second connecting rod 3022 is rotatably connected to the end of the third connecting plate 3014 away from the first slider 307 via a bearing. A second slider 3023 is rotatably connected to the end of the second connecting rod 3022 away from the third connecting plate 3014 via a bearing. The end of the second slider 3023 away from the second connecting rod 3022 is fixedly connected to... A toggle plate 3024 is included. The outer wall of the second slider 3023 is movably connected to the outer casing 101. A first elastic component 106 is fixedly connected to the top of the second slider 3023, and the top of the first elastic component 106 is fixedly connected to the outer casing 101. The movement of the toggle plate 3024 can change the position of the ratchet rack 305. A second movable plate 3018 is movably connected to the outer wall of the sliding column 107. A positioning pin 3020 is fixedly connected to the inner side of the second movable plate 3018. The outer wall of the positioning pin 3020 is movably connected to the positioning groove 3017. A force-receiving wheel 3021 is rotatably connected to the top of the second movable plate 3018 via a bearing. When the resistance memory function needs to be activated, the toggle plate 3024 is pushed downwards, causing the second slider 3023 to move backwards.Then, the second connecting rod 3022 pushes the third connecting plate 3014 to move, and this movement is transmitted to the sliding frame 304 via the first connecting rod 3015, pulling the ratchet 305 on its outer side to retract towards the center; at this time, the first movable plate 3012 can fall into the tooth groove of the ratchet 305, entering the resistance memory standby state; at the same time, the positioning pin 3020 is embedded in the positioning groove 3017 under the elastic force of the second spring 3019, locking the position of the third connecting plate 3014, thereby stabilizing the ratchet 305 and preventing the second sliding plate from retracting. Block 3023 resets under the pulling force of the first elastic component 106; when the resistance memory function needs to be turned off, the second movable rod 408 is pulled outward first, causing the positioning pin 3020 to disengage from the positioning groove 3017, releasing the lock on the third connecting plate 3014; at this time, under the rebound action of the first elastic component 106, the actuating plate 3024 is pulled back to its original position, driving the third connecting plate 3014 forward, thereby causing the ratchet rack 305 to unfold to both sides, and the first movable plate 3012 moves out of the tooth groove, thus turning off the resistance memory function.

[0043] Example 2: Please refer to Figures 11-13Based on Embodiment 1, the present invention provides a technical solution: the control component 4 includes a second connecting frame 401, the outer wall of the second connecting frame 401 is fixedly connected to the outer shell 101, a third movable plate 402 is provided on the inner side of the second connecting frame 401, a first movable rod 406 is fixedly connected to both the left and right sides of the third movable plate 402, a second force-bearing plate 407 is fixedly connected to both the front and rear ends of the first movable rod 406, a third elastic component 405 is fixedly connected to the inner wall of the second connecting frame 401, the end of the third elastic component 405 away from the second connecting frame 401 is fixedly connected to the third movable plate 402, and a vertical plate 40 is fixedly connected to the bottom of the third movable plate 402. 3. A pressing plate 404 is fixedly connected to the bottom of the vertical plate 403. The state of the pressing plate 404 can change the position of the positioning pin 3020. A second movable rod 408 is provided on the rear side of the third movable plate 402. The outer wall of the second movable rod 408 is movably connected to the outer shell 101. A hook-shaped plate 409 is fixedly connected to the side of the second movable rod 408 near the third movable plate 402. The hook-shaped plate 409 is sleeved on the outer wall of the second force-bearing plate 407. A third spring 4010 is sleeved on the outer wall of the second movable rod 408. One end of the third spring 4010 is fixedly connected to the hook-shaped plate 409, and the end of the third spring 4010 away from the hook-shaped plate 409 is fixed to the outer shell 101. The connection includes a second movable rod 408 that can change the position of the extrusion plate 404. A rotating disk 4015 is rotatably connected to the inner wall of the first connecting plate 105 via bearings. A movable block 4016 is fixedly connected to the bottom of the rotating disk 4015. A fourth elastic component 4011 is fixedly connected to the inner wall of the outer shell 101. A fourth connecting plate 4012 is provided on the top of the fourth elastic component 4011. A push plate 4013 is fixedly connected to the end of the fourth connecting plate 4012 near the third movable plate 402. The fourth elastic component 4011 is fixedly connected to the push plate 4013 away from the hollow column 103. A sliding groove 4014 is provided on the top of the fourth connecting plate 4012. The inner wall of the groove 4014 is movably connected to the movable block 4016. When a reset operation is required, the second movable rod 408 is pulled outward, which drives the second force plate 407 to move through the hook plate 409. Then, the third movable plate 402 and the bottom vertical plate 403 are pulled through the first movable rod 406, causing the pressing plate 404 to be displaced. The moving pressing plate 404 applies pressure to the force wheel 3021, causing the second movable plate 3018 to unfold to both sides, thereby disengaging the positioning pin 3020 from the positioning groove 3017 and completing the unlocking. When the direction of the pistol drill is changed, since the internal steering paddle of the pistol drill is connected to a circular brush, the brush will rotate when the direction is switched.The top of the rotating disk 4015 is fixedly connected to the center of the brush. Therefore, when switching directions, the rotating disk 4015 rotates synchronously, causing the movable block 4016 at its bottom to deflect. The movable block 4016 pushes the fourth connecting plate 4012 through the slide groove 4014, causing the push plate 4013 to apply a thrust to the second force plate 407, thereby triggering the same unlocking process and realizing the automatic reset function during switching directions.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A handheld pistol drill for easy speed control, comprising a handle (1), wherein a housing (101) is fixedly connected to the top of the handle (1), and a drill body (102) is fixedly connected to the top of the housing (101), characterized in that, The inner wall of the shell (101) is fixedly connected with a hollow column (103), the inner wall of the shell (101) is fixedly connected with a convex strip (104), the outer wall of the convex strip (104) is movably connected with a pressing assembly (2), the inner wall of the shell (101) is fixedly connected with a resistance assembly (3), the inner wall of the shell (101) is fixedly connected with a first connecting plate (105), the inner wall of the shell (101) is fixedly connected with a control assembly (4), and the inner wall of the shell (101) is fixedly connected with a sliding column (107). The pressing assembly (2) comprises: A trigger (201), a notch (202) is formed in the top of the trigger (201), the outer wall of the trigger (201) is movably connected with the convex strip (104), the rear side of the trigger (201) is fixedly connected with a first convex plate (203), the inner wall of the first convex plate (203) is movably connected with the hollow column (103), the inner wall of the first convex plate (203) is fixedly connected with a first spring (204), and the end, away from the first convex plate (203), of the first spring (204) is fixedly connected with the hollow column (103), wherein the outer wall of the first convex plate (203) is connected with a speed regulating switch (108) on a hand drill internal circuit board, and the speed of the hand drill can be controlled according to the degree of pressing the trigger (201); The resistance component (3) includes a fixed plate (301), the inner wall of the shell (101) is fixedly connected with the fixed plate (301), one side of the fixed plate (301) away from the shell (101) is fixedly connected with a track (302), the outer wall of the track (302) is movably connected with a first sliding block (307), the bottom of the first sliding block (307) is fixedly connected with a first stress plate (308), the outer wall of the first stress plate (308) is fixedly connected with a second elastic component (309), one end of the second elastic component (309) away from the first sliding block (307) is fixedly connected with the shell (101), wherein the first stress plate (308) is in the gap (202), the movement of the trigger (201) can change the position of the first sliding block (307), the outer wall of the fixed plate (301) is fixedly connected with a sliding plate (303), the outer wall of the sliding plate (303) is movably connected with a sliding frame (304), one side of the sliding frame (304) away from the sliding plate (303) is fixedly connected with a ratchet bar (305), the top of the sliding frame (304) is fixedly connected with a second connecting plate (306), wherein the ratchet bar (305) can move, the back side of the first sliding block (307) is fixedly connected with a first connecting frame (3010), the top of the first connecting frame (3010) is fixedly connected with a strip-shaped plate (3011), the inner wall of the strip-shaped plate (3011) is rotatably connected with a first movable plate (3012) through a bearing, the outer wall of the strip-shaped plate (3011) is fixedly connected with a reed (3013), one end of the reed (3013) away from the strip-shaped plate (3011) is fixedly connected with the first movable plate (3012), wherein the first movable plate (3012) can be clamped in the ratchet bar (305), for limiting the movement of the first stress plate (308), the top of the strip-shaped plate (3011) is provided with a third connecting plate (3014), the bottom of the third connecting plate (3014) is rotatably connected with a first connecting rod (3015) through a bearing, one end of the first connecting rod (3015) away from the third connecting plate (3014) is rotatably connected with the second connecting plate (306), the top of the third connecting plate (3014) is fixedly connected with a second protruding plate (3016), the outer wall of the second protruding plate (3016) is provided with a positioning groove (3017), one end of the third connecting plate (3014) away from the first sliding block (307) is rotatably connected with a second connecting rod (3022) through a bearing, one end of the second connecting rod (3022) away from the third connecting plate (3014) is rotatably connected with a second sliding block (3023) through a bearing, one end of the second sliding block (3023) away from the second connecting rod (3022) is fixedly connected with a pushing plate (3024), the outer wall of the second sliding block (3023) is movably connected with the shell (101), the top of the second sliding block (3023) is fixedly connected with a first elastic component (106),The top of the first elastic component (106) is fixedly connected with the shell (101), the movement of the toggle plate (3024) can change the position of the ratchet bar (305), the outer wall of the sliding column (107) is movably connected with the second movable plate (3018), the inner side of the second movable plate (3018) is fixedly connected with the positioning pin (3020), the outer wall of the positioning pin (3020) is movably connected with the positioning groove (3017), and the top of the second movable plate (3018) is rotatably connected with the stress wheel (3021) through a bearing. When the positioning pin (3020) is embedded in the positioning groove (3017), the position of the ratchet bar (305) can be locked.

2. A hand-held pistol drill with easy speed control according to claim 1, characterized in that: The control assembly (4) comprises a second connecting frame (401), the outer wall of the second connecting frame (401) is fixedly connected with the shell (101), the inner side of the second connecting frame (401) is provided with a third movable plate (402), the left and right sides of the third movable plate (402) are fixedly connected with first movable rods (406), the front and rear ends of the first movable rods (406) are fixedly connected with second stress plates (407), the inner wall of the second connecting frame (401) is fixedly connected with a third elastic assembly (405), the end, away from the second connecting frame (401), of the third elastic assembly (405) is fixedly connected with the third movable plate (402), the bottom of the third movable plate (402) is fixedly connected with a vertical plate (403), and the bottom of the vertical plate (403) is fixedly connected with a pressing plate (404), wherein the state of the pressing plate (404) can change the position of the positioning pin (3020).

3. A hand-held pistol drill with easy speed control according to claim 2, characterized in that: The rear side of the third movable plate (402) is provided with a second movable rod (408), the outer wall of the second movable rod (408) is movably connected with the shell (101), one side of the second movable rod (408) close to the third movable plate (402) is fixedly connected with a hook-shaped plate (409), the hook-shaped plate (409) is sleeved on the outer wall of the second stress plate (407), the outer wall of the second movable rod (408) is sleeved with a third spring (4010), one end of the third spring (4010) is fixedly connected with the hook-shaped plate (409), and the other end of the third spring (4010) away from the hook-shaped plate (409) is fixedly connected with the shell (101), wherein pulling the second movable rod (408) can change the position of the extrusion plate (404).

4. A hand-held pistol drill with easy speed control according to claim 1, characterized in that: The inner wall of the first connecting plate (105) is rotatably connected with a rotating disc (4015) through a bearing, the bottom of the rotating disc (4015) is fixedly connected with a movable block (4016), the inner wall of the shell (101) is fixedly connected with a fourth elastic assembly (4011), the top of the fourth elastic assembly (4011) is provided with a fourth connecting plate (4012), one end of the fourth connecting plate (4012) close to the third movable plate (402) is fixedly connected with a push plate (4013), the fourth elastic assembly (4011) away from the hollow column (103) is fixedly connected with the push plate (4013), and the top of the fourth connecting plate (4012) is provided with a sliding groove (4014). The inner wall of the sliding groove (4014) is movably connected with the movable block (4016), wherein the top of the rotating disc (4015) is fixedly connected with the rotating shaft of the steering switch (109) in the pistol drill.

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