Hand-held pistol drill facilitating speed control

Abstract

The invention relates to the technical field of electric tools, and discloses a handheld speed-control-facilitating pistol drill which comprises a handle, a shell is fixedly connected to the top of the handle, a drill body is fixedly connected to the top of the shell, a hollow column is fixedly connected to the inner wall of the shell, and a protruding strip is fixedly connected to the inner wall of the shell; the outer wall of the protruding strip is movably connected with a pressing assembly, the inner wall of the shell is fixedly connected with a resistance assembly, by arranging the resistance assembly, the position of the corresponding trigger can be automatically memorized according to the last use state of an operator, and when the trigger is used again and pressed to the position, the trigger can be automatically reset. The resistance borne by the trigger is converted into the combined action of double springs from the action of a single spring, and the resistance is increased, so that clear tactile feedback is provided for an operator, the operator can perceive the previously set working position, the operator can realize self-defined rotating speed control according to the actual machining requirement, and the repeatability of operation is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric tools, in particular to a handheld pistol drill convenient for speed control. BACKGROUND

[0002] The electric drill is a kind of electric tool driven by the output shaft of the motor, which is widely used in construction, decoration, furniture and other industries, and is used for drilling holes or penetrating objects.

[0003] The patent application with the application number CN202320385604.7 discloses a brushless pistol drill, characterized in that a motor is arranged in the shell, the output shaft of the motor is connected with a speed reduction mechanism, a rotational speed sensor for detecting the rotational speed of the main gear of the speed reduction mechanism is arranged on the main gear, a controller is connected with the rotational speed sensor and arranged outside the shell and electrically connected with the rotational speed sensor, the controller is also connected with the motor and controls the rotational speed of the motor, a comparison module is further arranged in the controller for comparing the instantaneous rotational speed detected by the rotational speed sensor with the gear rotational speed of the pistol drill, and when the instantaneous rotational speed is inconsistent with the gear rotational speed, the controller adjusts the instantaneous rotational speed to be consistent with the gear rotational speed.

[0004] When the existing device is used, the rotational speed control of the pistol drill can be realized by adjusting the state of the planetary gear and the voltage adjustment, but the planetary gear usually only provides high and low two gears for speed regulation, and the adjustable range is limited, which is difficult to meet the diversified processing requirements, and the voltage adjustment depends on the feeling and experience of the operator pressing the trigger, lacks clear gear feedback, and leads to unstable rotational speed control and poor repeatability. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a handheld pistol drill convenient for speed control to solve the problems in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a handheld pistol drill convenient for speed control, comprising 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 protruding strip, the outer wall of the protruding strip is movably connected with a pressing assembly, the inner wall of the shell is fixedly connected with a resistance assembly, the inner wall of the shell is fixedly connected with a first connecting plate, the inner wall of the shell is fixedly connected with a control assembly through a fixed connection, and the inner wall of the shell is fixedly connected with a sliding column. The pressing assembly comprises: The pressing assembly comprises a trigger, a gap is formed in the top of the trigger, the outer wall of the trigger is movably connected with a convex strip, the rear side of the trigger is fixedly connected with a first convex plate, the inner wall of the first convex plate is movably connected with a hollow column, the inner wall of the first convex plate is fixedly connected with a first spring, and the end, away from the first convex plate, of the first spring is fixedly connected with the hollow column, wherein the outer wall of the first convex plate is connected with a speed regulating switch on the circuit board of the hand drill, and the degree of pressing the trigger can control the size of the rotating speed of the hand drill.

[0007] According to the technical scheme, the resistance assembly comprises a fixed plate, the inner wall of the shell is fixedly connected with the fixed plate, the side, away from the shell, of the fixed plate is fixedly connected with a track, the outer wall of the track is movably connected with a first sliding block, the bottom of the first sliding block is fixedly connected with a first stress plate, the outer wall of the first stress plate is fixedly connected with a second elastic assembly, and the end, away from the first sliding block, of the second elastic assembly is fixedly connected with the shell, wherein the first stress plate is in the gap, the movement of the trigger can change the position of the first sliding block, and the resistance assembly can automatically remember the corresponding trigger position according to the last use state of the operator, when the trigger is pressed to the position again, the resistance on the trigger is changed from the single spring action to the common action of the two springs, the resistance is increased, and therefore, clear tactile feedback is provided for the operator, the operator can perceive the previously set working position, the operator can realize self-defined rotating speed control according to actual machining requirements, and the repeatability of operation is effectively improved.

[0008] According to the technical scheme, the outer wall of the fixed plate is fixedly connected with a sliding plate, the outer wall of the sliding plate is movably connected with a sliding frame, the side, away from the sliding plate, of the sliding frame is fixedly connected with a ratchet strip, and the top of the sliding frame is fixedly connected with a second connecting plate, wherein the ratchet strip can move.

[0009] According to the technical scheme, the rear side of the first sliding block is fixedly connected with a first connecting frame, the top of the first connecting frame is fixedly connected with a strip-shaped plate, the inner wall of the strip-shaped plate is rotatably connected with a first movable plate through a bearing, the outer wall of the strip-shaped plate is fixedly connected with a reed, and the end, away from the strip-shaped plate, of the reed is fixedly connected with the first movable plate, wherein the first movable plate can be clamped in the ratchet strip, and is used for limiting the movement of the first stress plate.

[0010] According to the technical scheme, the top of the strip-shaped plate is provided with a third connecting plate, the bottom of the third connecting plate is rotationally connected with a first connecting rod through a bearing, one end of the first connecting rod away from the third connecting plate is rotationally connected with the second connecting plate, the top of the third connecting plate is fixedly connected with a second protruding plate, the outer wall of the second protruding plate is provided with a positioning groove, one end of the third connecting plate away from the first sliding block is rotationally connected with a second connecting rod through a bearing, one end of the second connecting rod away from the third connecting plate is rotationally connected with a second sliding block through a bearing, one end of the second sliding block away from the second connecting rod is fixedly connected with a poking plate, the outer wall of the second sliding block is movably connected with the shell, the top of the second sliding block is fixedly connected with a first elastic component, the top of the first elastic component is fixedly connected with the shell, wherein the movement of the poking plate can change the position of the ratchet strip, the resistance component is arranged, so that the operator can flexibly select whether to enable the rotation speed memory function according to the specific use condition, which is suitable for repetitive operation requiring fixed rotation speed, and meets the flexible demand of non-repetitive operation, thereby enhancing the practicability and adaptability of the tool.

[0011] According to the technical scheme, the outer wall of the sliding column is movably connected with a second movable plate, the inner side of the second movable plate is fixedly connected with a positioning pin, the outer wall of the positioning pin is movably connected with the positioning groove, and the top of the second movable plate is rotationally connected with a stress wheel through a bearing.

[0012] According to the technical scheme, the control component comprises a second connecting frame, the outer wall of the second connecting frame is fixedly connected with the shell, the inner side of the second connecting frame is provided with a third movable plate, the left and right sides of the third movable plate are fixedly connected with first movable rods, the front and rear ends of the first movable rods are fixedly connected with second stress plates, the inner wall of the second connecting frame is fixedly connected with a third elastic component, one end of the third elastic component away from the second connecting frame is fixedly connected with the third movable plate, the bottom of the third movable plate is fixedly connected with a vertical plate, the bottom of the vertical plate is fixedly connected with a pressing plate, and the state of the pressing plate can change the position of the positioning pin.

[0013] According to the technical scheme, the rear side of the third movable plate is provided with a second movable rod, the outer wall of the second movable rod is movably connected with the shell, one side of the second movable rod close to the third movable plate is fixedly connected with a hook-shaped plate, the hook-shaped plate is sleeved on the outer wall of the second stress plate, the outer wall of the second movable rod is sleeved with a third spring, one end of the third spring is fixedly connected with the hook-shaped plate, and the other end of the third spring away from the hook-shaped plate is fixedly connected with the shell, wherein pulling the second movable rod can change the position of the extrusion plate, the control assembly is arranged to provide a one-key reset function, the user can quickly clear the memorized rotating speed position, different work tasks can be quickly switched, and the operation convenience and work efficiency are improved.

[0014] According to the technical scheme, the inner wall of the first connecting plate is rotatably connected with a rotating disc through a bearing, the bottom of the rotating disc is fixedly connected with a movable block, the inner wall of the shell is fixedly connected with a fourth elastic assembly, the top of the fourth elastic assembly is provided with a fourth connecting plate, one end of the fourth connecting plate close to the third movable plate is fixedly connected with a pushing plate, the fourth elastic assembly away from the hollow column is fixedly connected with the pushing plate, and a sliding groove is formed in the top of the fourth connecting plate, and the inner wall of the sliding groove is movably connected with the movable block, wherein the top of the rotating disc is fixedly connected with the rotating shaft of the steering switch in the pistol drill, and when the rotating direction of the pistol drill is switched, the control assembly can automatically trigger the reset device to clear the previous rotating speed memory state, the rotating speed misoperation caused by the change of the rotating direction is avoided, the manual intervention link is reduced, and the operation convenience and work efficiency are improved.

[0015] Compared with the prior art, the handheld pistol drill convenient for speed control has the following beneficial effects: 1、The resistance assembly is arranged, the corresponding trigger position can be automatically memorized according to the last use state of the operator, when the trigger is pressed to the position again, the resistance of the trigger is changed from single spring action to double spring action, the resistance is increased, definite tactile feedback is provided for the operator, the previously set working position is perceived, the operator can realize self-defined rotating speed control according to actual machining requirements, and the repeatability of operation is effectively improved.

[0016] 2、The resistance assembly is arranged, the operator can flexibly select whether to enable the rotating speed memory function according to specific use conditions, the tool is suitable for repetitive work requiring fixed rotating speed and meets the flexible requirements of non-repetitive work, and the practicability and adaptability of the tool are enhanced.

[0017] 3、The control assembly is arranged to provide a one-key reset function, the user can quickly clear the memorized rotating speed position, different work tasks can be quickly switched, and the operation convenience and work efficiency are improved.

[0018] 4. The control assembly is arranged, when the rotating direction of the pistol drill is switched, the control assembly can automatically trigger the resetting device to clear the previous rotating speed memory state, avoid the rotating speed misoperation caused by the rotating direction change, reduce the manual intervention link, and improve the operation convenience and working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the principles of the application, and should not be taken as limiting the application. In the drawings: Figure 1 is a schematic view of the overall structure of the present application; Figure 2 is a sectional view of the overall structure of the present application; Figure 3 is a sectional view of A-A in the present application Figure 1 ; Figure 1 ; Figure 4 is a sectional view of A-A in the present application Figure 1 ; Figure 2 ; Figure 5 is a schematic view of the pressing assembly of the present application Figure 1 ; Figure 6 is a schematic view of the resistance assembly of the present application Figure 2 ; Figure 7 is a schematic view of the resistance assembly of the present application Figure 3 ; Figure 8 is a schematic view of the resistance assembly of the present application Figure 4 ; Figure 9 is a schematic view of the resistance assembly of the present application Figure 5 ; Figure 10 is a schematic view of the resistance assembly of the present application Figure 6 ; Figure 11 is a schematic view of the control assembly of the present application Figure 1 ; Figure 12 is a schematic view of the control assembly of the present application Figure 2 ; Figure 13 is a schematic view of the control assembly of the present application Figure 3 .

[0020] In the figure: 1, handle; 101, shell; 102, drill body; 103, hollow column; 104, convex strip; 105, first connecting plate; 106, first elastic component; 107, sliding column; 108, speed regulating switch; 109, steering switch; 2, pressing assembly; 201, trigger; 202, notch; 203, first convex plate; 204, first spring; 3, resistance assembly; 301, fixed plate; 302, track; 303, sliding plate; 304, sliding frame; 305, ratchet strip; 306, second connecting plate; 307, first sliding block; 308, first force receiving plate; 309, second elastic component; 3010, first connecting frame; 3011, strip-shaped plate; 3012, first movable plate; 3013, reed; 3014, third connecting plate; 3015, first connecting rod; 3016, second convex plate; 3017, positioning groove; 3018, second movable plate; 3019, second spring; 3020, positioning pin; 3021, force receiving wheel; 3022, second connecting rod; 3023, second sliding block; 3024, actuating plate; 4, control assembly; 401, second connecting frame; 402, third movable plate; 403, vertical plate; 404, extrusion plate; 405, third elastic component; 406, first movable rod; 407, second force receiving plate; 408, second movable rod; 409, hook-shaped plate; 4010, third spring; 4011, fourth elastic component; 4012, fourth connecting plate; 4013, pushing plate; 4014, sliding groove; 4015, rotating disc; 4016, movable block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0022] Examples of the described embodiments are shown in the accompanying drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0023] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Embodiment one: refer toFigures 1-10 The application provides the technical scheme: a hand-held pistol drill convenient to control speed, comprising a handle 1, the top of the handle 1 is fixedly connected with a shell 101, the top of the shell 101 is fixedly connected with a drill body 102, 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 through fixed connection, and the inner wall of the shell 101 is fixedly connected with a sliding column 107. The pressing assembly 2 comprises a trigger 201, the top of the trigger 201 is provided with a notch 202, 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, one 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 pistol drill inner circuit board, the degree of pressing the trigger 201 can control the size of the speed of the pistol drill, in the memory function enabled state, with the movement of the trigger 201, the notch 202 at the top of the trigger 201 can drive the synchronous displacement of a first stress plate 308, the first stress plate 308 further moves a first movable plate 3012 through the movement of a first sliding block 307, a first connecting frame 3010 and a strip-shaped plate 3011; since the connection between the first movable plate 3012 and a reed 3013 has a certain elasticity, the trigger 201 can still be pressed in 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, and the first stress plate 308 cannot return to the initial position due to the blocking of a ratchet strip 305, so that the position memory is realized; in the next use, the trigger 201 is only subjected to the resistance of the first spring 204 in the initial stage; after the notch 202 contacts the first stress plate 308, the first stress plate 308 is subjected to the double resistance of the first spring 204 and a second elastic assembly 309, so as to provide clear tactile feedback for the operator.

[0025] The resistance assembly 3 comprises a fixed plate 301, the inner wall of the shell 101 is fixedly connected with the fixed plate 301, the side, away from the shell 101, of the fixed plate 301 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 assembly 309, one end, away from the first sliding block 307, of the second elastic assembly 309 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, away from the sliding plate 303, of the sliding frame 304 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 plate 3011, the inner wall of the strip plate 3011 is rotatably connected with a first movable plate 3012 through a bearing, the outer wall of the strip plate 3011 is fixedly connected with a reed 3013, one end, away from the strip plate 3011, of the reed 3013 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 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, away from the third connecting plate 3014, of the first connecting rod 3015 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, away from the first sliding block 307, of the third connecting plate 3014 is rotatably connected with a second connecting rod 3022 through a bearing, one end, away from the third connecting plate 3014, of the second connecting rod 3022 is rotatably connected with a second sliding block 3023 through a bearing, one end, away from the second connecting rod 3022, of the second sliding block 3023 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 assembly 106, the top of the first elastic assembly 106 is fixedly connected with the shell 101, wherein the movement of the pushing plate 3024 can change the position of the ratchet bar 305, the outer wall of the sliding column 107 is movably connected with a second movable plate 3018, the inner side of the second movable plate 3018 is fixedly connected with a positioning pin 3020, the outer wall of the positioning pin 3020 is movably connected with the positioning groove 3017, the top of the second movable plate 3018 is rotatably connected with a stress wheel 3021, when the resistance memory function needs to be enabled, the pushing plate 3024 is pushed down, the second sliding block 3023 is driven to move backward,Further, the third connecting plate 3014 is pushed to displace by the second connecting rod 3022, and the movement is transmitted to the sliding frame 304 through the first connecting rod 3015, so that the ratchet bar 305 outside the sliding frame 304 is retracted to the middle; at this time, the first movable plate 3012 can fall into the tooth groove of the ratchet bar 305, and enter the resistance memory standby state; at the same time, the positioning pin 3020 is embedded into the positioning groove 3017 under the elastic force of the second spring 3019, so that the position of the third connecting plate 3014 is locked, thereby stabilizing the ratchet bar 305 and preventing the second sliding block 3023 from resetting under the pulling force of the first elastic assembly 106; when it is needed to close the resistance memory function, the second movable rod 408 is first pulled outward, so that the positioning pin 3020 is separated from the positioning groove 3017, and the locking of the third connecting plate 3014 is released; at this time, the toggle plate 3024 is pulled back to the original position under the rebounding action of the first elastic assembly 106, and drives the third connecting plate 3014 to move forward, and then makes the ratchet bar 305 expand to both sides, and the first movable plate 3012 is removed from the tooth groove, so that the resistance memory function is closed.

[0026] Example two: please refer to Figures 11-13On the basis of embodiment one, the application provides the technical scheme: 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 both fixedly connected with a first movable rod 406, the front and rear ends of the first movable rod 406 are both fixedly connected with a second stress plate 407, the inner wall of the second connecting frame 401 is fixedly connected with a third elastic assembly 405, one end of the third elastic assembly 405, away from the second connecting frame 401, 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 an extrusion plate 404, wherein the state of the extrusion plate 404 can change the position of the positioning pin 3020, 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, 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 pushing plate 4013, the fourth elastic assembly 4011, away from the hollow column 103, is fixedly connected with the pushing plate 4013, the top of the fourth connecting plate 4012 is provided with a sliding groove 4014, and the inner wall of the sliding groove 4014 is movably connected with the movable block 4016, when the reset operation needs to be performed, the second movable rod 408 is pulled outward, the second stress plate 407 is driven to move through the hook-shaped plate 409, then the third movable plate 402 and the vertical plate 403 at the bottom are pulled by the first movable rod 406, the extrusion plate 404 is displaced, the extrusion plate 404 that moves exerts pressure on the stress wheel 3021, the second movable plate 3018 is expanded to both sides, so that the positioning pin 3020 is separated from the positioning groove 3017, and the unlocking is completed; when the direction of the pistol drill is changed, since the internal direction turning tab of the pistol drill is connected with a circular brush, the brush will rotate when the direction is switched;The top of the rotating disc 4015 is fixedly connected with the brush center, so that the rotating disc 4015 rotates synchronously when the steering is switched, and the movable block 4016 at the bottom of the rotating disc 4015 is deflected, the movable block 4016 pushes the fourth connecting plate 4012 through the sliding groove 4014, the pushing plate 4013 exerts a pushing force on the second stress plate 407, and then the same unlocking process is triggered, so that the automatic resetting function during steering switching is realized.

[0027] It should be noted that, in this document, the terms such as first and second are used merely 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. Moreover, the terms "comprising", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device.

[0028] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and does not limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

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, A hollow column (103) is fixedly connected to the inner wall of the outer shell (101), a protruding strip (104) is fixedly connected to the inner wall of the outer shell (101), a pressing component (2) is movably connected to the outer wall of the protruding strip (104), a resistance component (3) is fixedly connected to the inner wall of the outer shell (101), a first connecting plate (105) is fixedly connected to the inner wall of the outer shell (101), a control component (4) is fixedly connected to the inner wall of the outer shell (101), and a sliding column (107) is fixedly connected to the inner wall of the outer shell (101). The pressing component (2) includes: The pressing assembly (2) includes a trigger (201), the top of which has a notch (202). The outer wall of the trigger (201) is movably connected to a protruding strip (104). A first protruding plate (203) is fixedly connected to the rear side of the trigger (201). The inner wall of the first protruding plate (203) is movably connected to a hollow column (103). A first spring (204) is fixedly connected to the inner wall of the first protruding plate (203). The end of the first spring (204) away from the first protruding plate (203) is fixedly connected to the hollow column (103). The outer wall of the first protruding plate (203) is connected to a speed control switch (108) on the inner circuit board of the pistol drill. The speed of the pistol drill can be controlled according to the degree of pressing the trigger (201).

2. A hand-held pistol drill with easy speed control according to claim 1, characterized in that: 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 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 plate (308), and 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 plate (308) is located in the notch (202), and the movement of the trigger (201) can change the position of the first slider (307).

3. A hand-held pistol drill with easy speed control according to claim 2, characterized in that: A sliding plate (303) is fixedly connected to the outer wall of the fixed plate (301), and a sliding frame (304) is movably connected to the outer wall of the sliding plate (303). A ratchet (305) is fixedly connected to the side of the sliding frame (304) away from the sliding plate (303), and a second connecting plate (306) is fixedly connected to the top of the sliding frame (304). The ratchet (305) can move.

4. A hand-held pistol drill with easy speed control according to claim 3, characterized in that: The first slider (307) is fixedly connected to the rear side of the first connecting frame (3010), and the top of the first connecting frame (3010) is fixedly connected to the strip plate (3011). The inner wall of the strip plate (3011) is rotatably connected to the first movable plate (3012) through the bearing. The outer wall of the strip plate (3011) is fixedly connected to the spring (3013). The 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 locked in the ratchet rack (305) to limit the movement of the first force plate (308).

5. A hand-held pistol drill with easy speed control according to claim 4, characterized in that: The top of the strip plate (3011) is provided with a third connecting plate (3014), and the bottom of the third connecting plate (3014) is rotatably connected to a first connecting rod (3015) 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). The top of the third connecting plate (3014) is fixedly connected to a second protruding plate (3016), and the outer wall of the second protruding plate (3016) is provided with a positioning groove (3017). The end of the third connecting plate (3014) away from the first slider (307) is rotatably connected to a second connecting rod (3022) via a bearing. The end of the second slider (3022) away from the third connecting plate (3014) is rotatably connected to the second slider (3023) via a bearing. The end of the second slider (3023) away from the second connecting rod (3022) is fixedly connected to the actuating plate (3024). The outer wall of the second slider (3023) is movably connected to the outer shell (101). The top of the second slider (3023) is fixedly connected to the first elastic component (106). The top of the first elastic component (106) is fixedly connected to the outer shell (101). The movement of the actuating plate (3024) can change the position of the ratchet (305).

6. A hand-held pistol drill with easy speed control according to claim 5, characterized in that: The outer wall of the sliding column (107) is movably connected to a second movable plate (3018), and the inner side of the second movable plate (3018) is fixedly connected to a positioning pin (3020). The outer wall of the positioning pin (3020) is movably connected to the positioning groove (3017). The top of the second movable plate (3018) is rotatably connected to a force-bearing wheel (3021) through a bearing. When the positioning pin (3020) is embedded in the positioning groove (3017), it can lock the position of the ratchet rack (305).

7. A hand-held pistol drill with easy speed control according to claim 6, characterized in that: 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 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), a vertical plate (403) is fixedly connected to the bottom of the third movable plate (402), and a pressing plate (404) is fixedly connected to the bottom of the vertical plate (403), wherein the state of the pressing plate (404) can change the position of the positioning pin (3020).

8. A hand-held pistol drill with easy speed control according to claim 7, characterized in that: 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 plate (409) is fixedly connected to the side of the second movable rod (408) near the third movable plate (402). The hook plate (409) is sleeved on the outer wall of the second force 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 plate (409). The end of the third spring (4010) away from the hook plate (409) is fixedly connected to the outer shell (101). Pulling the second movable rod (408) can change the position of the extrusion plate (404).

9. A hand-held pistol drill with easy speed control according to claim 8, characterized in that: The inner wall of the first connecting plate (105) is rotatably connected to a rotating disk (4015) via a bearing. The bottom of the rotating disk (4015) is fixedly connected to a movable block (4016). The inner wall of the outer shell (101) is fixedly connected to a fourth elastic component (4011). The top of the fourth elastic component (4011) is provided with a fourth connecting plate (4012). The end of the fourth connecting plate (4012) near the third movable plate (402) is fixedly connected to a push plate (4013). The fourth elastic component (4011) away from the hollow column (103) is fixedly connected to the push plate (4013). 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 to the movable block (4016). The top of the rotating disk (4015) is fixedly connected to the rotating shaft of the turn switch (109) in the pistol drill.

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