Power tool

Abstract

The utility model discloses an electric tool, including main part, drive assembly and switch subassembly, drive assembly installs in main part, including power mechanism and in the output of power mechanism front end in first direction, switch subassembly installs in main part, including electric control device and trigger, trigger can trigger electric control device to change the working condition of drive assembly in sliding stroke. Trigger has the press surface that exposes in the outside of main part, forms first press position and second press position on press surface in the direction of relatively far away drive assembly and arranges in proper order, and the included angle between the line of two and first direction is acute angle, and / or, second press position is behind first press position in first direction. In the utility model, through the special arrangement of first press position and second press position, can make index finger and middle finger more balanced in the pressing process, let two fingers can more evenly share the pressing force, reduce the load of single finger, reduced the risk of operator's misoperation.

Description

Technical Field

[0001] This utility model relates to the field of handheld tool technology, specifically to an electric tool. Background Technology

[0002] Handheld power tools, such as drills, typically have triggers located on the handle. Operators control the tool by pressing the trigger with two fingers (usually the index and middle fingers). In existing power tools, the contact surface between the trigger and the fingers is usually perpendicular to the output shaft. However, because the third joint of the index finger is typically shorter than that of the middle finger, the index finger experiences greater force when pressing the trigger during actual operation. This uneven force distribution can easily lead to finger fatigue and even misoperation. Utility Model Content

[0003] The present invention aims to provide an electric tool that improves the user experience and reduces the risk of misoperation by reducing the uneven force on multiple fingers when the operator presses the trigger.

[0004] To solve the above-mentioned technical problems, this utility model provides an electric tool, comprising:

[0005] main body;

[0006] A drive assembly, mounted on the main body, the drive assembly including a power mechanism and an output end driven by the power mechanism, the output end being located at the front end of the power mechanism in a first direction; and,

[0007] A switch assembly is mounted on the main body. The switch assembly includes an electronic control device and a trigger. The trigger is slidably disposed relative to the electronic control device and is capable of triggering the electronic control device during a sliding stroke in a second direction to change the operating state of the drive assembly. The trigger has a pressing surface exposed on the outside of the main body. A first pressing position and a second pressing position are formed on the pressing surface. The first pressing position and the second pressing position are arranged sequentially in a direction relatively away from the drive assembly.

[0008] The angle between the line connecting the first pressing position and the second pressing position and the first direction is an acute angle.

[0009] Optionally, the angle between the line connecting the first pressing position and the second pressing position and the first direction is α, where α is greater than or equal to 80 degrees and less than or equal to 88 degrees.

[0010] To solve the above-mentioned technical problems, this utility model provides an electric tool, comprising:

[0011] main body;

[0012] A drive assembly, mounted on the main body, the drive assembly including a power mechanism and an output end driven by the power mechanism, the output end being located at the front end of the power mechanism in a first direction; and,

[0013] A switch assembly is mounted on the main body. The switch assembly includes an electronic control device and a trigger. The trigger is slidably disposed relative to the electronic control device and is capable of triggering the electronic control device during a sliding stroke in a second direction to change the operating state of the drive assembly. The trigger has a pressing surface exposed on the outside of the main body. A first pressing position and a second pressing position are formed on the pressing surface. The first pressing position and the second pressing position are arranged sequentially in a direction relatively away from the drive assembly.

[0014] The second pressing position is located in front of the first pressing position in the first direction.

[0015] Optionally, the distance between the second pressing position and the first pressing position in the first direction is b, where b is greater than or equal to 1.5 mm and less than or equal to 2 mm.

[0016] Optionally, the linear distance l between the first pressing position and the second pressing position is greater than or equal to 12 mm and less than or equal to 20 mm; and / or,

[0017] The pressing surface is an undulating arc surface in the direction away from the driving component. The rearmost position of the surface of the groove in the first direction constitutes the first pressing position, and the frontmost position of the convex surface in the first direction constitutes the second pressing position; or,

[0018] Two spaced grooves are formed on the pressing surface, and the surfaces of the two grooves respectively constitute the first pressing position and the second pressing position; or...

[0019] Two protrusions are formed on the pressing surface at a distance, and the surfaces of the two protrusions respectively constitute the first pressing position and the second pressing position.

[0020] Optionally, the electronic control device includes an electronic control box, the trigger is slidably mounted on the electronic control box and slides towards the electronic control box in a second direction when pressed, the main body includes a handle, the handle has a mounting cavity and an opening of a mounting channel communicating with the mounting cavity and the outside of the main body, the electronic control box is mounted in the mounting cavity, and the trigger is slidably inserted into the mounting channel.

[0021] Optionally, the angle between the second direction and the first direction is 180 degrees.

[0022] Optionally, the handle includes a detachably connected first housing and a second housing, which together enclose the mounting cavity. The first housing has a first mounting rib protruding from its inner side, and the second housing has a second mounting rib protruding from its inner side. The control box is installed between the first mounting rib and the second mounting rib to limit the position of the control box.

[0023] Optionally, the first mounting rib and the second mounting rib respectively include a transverse rib and a longitudinal rib. The transverse rib extends along the second direction and is distributed at both ends of the electrical control box in the third direction. The longitudinal rib extends along the third direction and is distributed at least at the end of the electrical control box away from the mounting channel in the second direction, wherein the third direction is perpendicular to the second direction.

[0024] Optionally, in the first mounting rib, the transverse rib is connected to the longitudinal rib to form two corner ribs. The two corner ribs are correspondingly arranged around the outer periphery of the two corners of the electrical control box away from the mounting channel. The first mounting rib also includes at least two pressing ribs, wherein the two pressing ribs are distributed one-to-one on the inner side of the two corner ribs, and their protrusion height relative to the inner side of the first housing is lower than that of each corner rib. Each pressing rib presses against the end face of the electrical control box; and / or,

[0025] In the second mounting rib position, the transverse rib is connected to the longitudinal rib to form an opening rib extending along a U-shape and with its opening facing the mounting channel, and the opening rib presses against the end face of the electrical control box.

[0026] The technical solution provided by this utility model has the following advantages:

[0027] The power tool provided by this utility model includes a main body, a drive assembly, and a switch assembly. The drive assembly is mounted on the main body and includes a power mechanism and an output end driven by the power mechanism. The output end is located at the front end of the power mechanism in a first direction. The switch assembly is mounted on the main body and includes an electronic control device and a trigger. During the travel of the trigger relative to the electronic control device in a second direction, the electronic control device can be triggered to change the working state of the drive assembly. The trigger has a pressing surface exposed on the outside of the main body. A first pressing position and a second pressing position are formed on the pressing surface, arranged sequentially in a direction relatively away from the drive assembly. The angle between the line connecting the two pressing positions and the first direction is an acute angle, and / or the first pressing position is located behind the second pressing position in the first direction. In the embodiments provided by this utility model, the special arrangement of the first and second pressing positions allows for a more balanced force distribution between the index and middle fingers during pressing. Compared to the traditional vertical layout, the index finger may bear more pressure due to its shorter knuckle. This solution, through reasonable design, allows the two fingers to distribute the pressing pressure more evenly, reducing the load on a single finger, improving the user experience, and reducing the risk of operator error. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 A three-dimensional structural diagram of an embodiment of the power tool provided by this utility model;

[0030] Figure 2 for Figure 1 A schematic diagram showing the positional relationship between the first and second pressing positions on the center trigger.

[0031] Figure 3 for Figure 1 A three-dimensional structural diagram of the switch assembly;

[0032] Figure 4 for Figure 1 Exploded view of the three-dimensional structure of a Chinese power tool;

[0033] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0034] Figure 6 for Figure 5 A three-dimensional structural diagram of the first shell in the middle;

[0035] Figure 7 for Figure 5 A three-dimensional structural diagram of the second shell.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Power tool; 10-Body; 11-Handle; 110-Mounting cavity; 111-First housing; 112-Second housing; 113-Mounting channel; 20-Drive assembly; 21-Output end; 30-Switch assembly; 31-Electrical control device; 311-Electrical control box; 32-Trigger; 320-Pressing surface; 321-First pressing position; 322-Second pressing position; 323-Groove; 324-Protrusion; 40-First mounting rib; 41-Pressure rib; 42-Corner rib; 50-Second mounting rib; 51-Opening rib; 60-Longitudinal rib; 70-Transverse rib; 2-Finger. Detailed Implementation

[0038] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0040] Please see Figures 1 to 7 This utility model provides a power tool 1, which is mainly a handheld power tool 1, such as an electric drill or a power wrench. Figure 1 As shown, the power tool 1 includes a main body 10, a drive assembly 20, and a switch assembly 30. The main body 10 serves to support and mount the various components of the power tool 1; its material and shape can be designed according to actual needs, and engineering plastics are generally used. The drive assembly 20 includes a power mechanism and an output end 21 driven by the power mechanism. The output end 21 is located at the front end of the power mechanism in a first direction. The output end 21 extends along the first direction, i.e., from rear to front. The power mechanism includes a motor and may also include a transmission assembly driven by the motor. The motor is usually housed within the main body 10. The specific structure of the output end 21 can vary depending on the needs, and it is typically a working head mounting device for the power tool.

[0041] It should be noted that the specific extension direction of the first direction is related to the operating method of the power tool 1. Generally, it refers to the direction in which the output end 21 faces the workpiece when the operator uses the power tool 1. For example, when the power tool 1 is an electric drill, the first direction is the direction in which the output end 21 and the drill bit it holds face the workpiece located outside the main body 10.

[0042] The switch assembly 30 is mounted on the main body 10, please refer to the following: Figures 1 to 3 The switch assembly 30 includes an electronic control device 31 and a trigger 32. The switch assembly 30 is generally installed in a part of the main body 10 that is easy to hold, so that the operator can easily press the trigger 32 while holding the tool when using the power tool 1.

[0043] It is understood that, in the preferred embodiment, the main body 10 includes a handle 11, and a switch assembly 30 is mounted on the handle 11. The length extension direction of the handle 11 forms an angle with the first direction. Preferably, the handle 11 extends downward at the location of the automatic force mechanism. When the operator holds the handle 11, their index and middle fingers simultaneously press on the trigger 32. When the operator applies force to the trigger 32, the trigger 32 is pressed, triggering the electronic control device 31 to control the drive assembly 20 to switch its working state.

[0044] Specifically, the trigger 32 is slidably mounted relative to the electronic control device 31 and can trigger the electronic control device 31 during its sliding stroke in the second direction. The specific extension direction of the second direction is related to the mounting method of the trigger 32, that is, the sliding direction towards the electronic control device 31 when the trigger 32 is pressed. It is roughly opposite to the first direction, that is, when the trigger 32 is pressed, the trigger 32 slides relative to the main body 10 in a front-to-back direction, approaches and triggers the electronic control device 31. A micro switch or the like can be installed in the electronic control device 31. When the trigger 32 is pressed and slids to touch the micro switch, the electronic control device 31 controls the drive assembly 20 to change its working state, for example, it can control the drive assembly 20 to start working. It should be noted that the trigger 32 can be directly slidably mounted on the main body 10, or it can be slidably mounted on the electronic control device 31 and mounted together with the electronic control device 31 on the main body 10.

[0045] Furthermore, the trigger 32 has a pressing surface 320 exposed on the outside of the main body 10. A first pressing position 321 and a second pressing position 322 are formed on the pressing surface 320, arranged sequentially in a direction relatively away from the drive assembly 20. When the operator performs the operation, the first pressing position 321 and the second pressing position 322 are respectively the contact areas between one of the operator's fingers 2 and the pressing surface 320. In a preferred embodiment, the first pressing position 321 is pressed by the index finger, and the second pressing position 322 is pressed by the middle finger.

[0046] like Figure 2As shown, this embodiment is designed according to ergonomics, with both the first pressing position 321 and the second pressing position 322 located on the pressing surface 320. The straight-line distance l between them should be greater than or equal to 12mm and less than or equal to 20mm. It should be noted that, for ease of explanation, the starting and ending points of the distance l are the center points of the contact areas between the two fingers and the pressing surface 320, respectively. The straight-line distance is the length of the straight-line segment between the center point of the first pressing position 321 and the center point of the second pressing position 322, and is also the minimum distance between them in space. Thus, when the operator holds the handle 11, the index and middle fingers can naturally press on the first pressing position 321 and the second pressing position 322, respectively. Preferably, the straight-line distance between the first pressing position 321 and the second pressing position 322 is 16mm, which conforms to the finger size and grip posture of a typical adult.

[0047] Optionally, the pressing surface 320 can be constructed with an undulating shape to indicate the pressing position of the operator's finger 2 and improve the operator's grip experience. Preferably, the pressing surface 320 is provided with an undulating arc surface in the direction away from the drive component 20, forming a groove 323 and a protrusion 324. The rearmost position of the surface of the groove 323 in the first direction, that is, the lowest point of the groove 323, constitutes the first pressing position 321. The foremost position of the surface of the protrusion 324 in the first direction, that is, the highest point of the protrusion 324, constitutes the second pressing position 322.

[0048] Those skilled in the art will recognize that the surface shapes of the first pressing position 321 and the second pressing position 322 can be varied. For example, two spaced grooves can be formed on the pressing surface 320, with the surfaces of the two grooves respectively constituting the first pressing position 321 and the second pressing position 322; or, two spaced protrusions can be formed on the pressing surface 320, with the surfaces of the two protrusions respectively constituting the first pressing position 321 and the second pressing position 322. All such variations will not be elaborated further, and any schemes employing the same or similar methods as this embodiment are covered within the scope of protection of this application.

[0049] Please continue reading. Figure 2 In one optional embodiment, the positions of the first press position 321 and the second press position 322 should be designed to meet the following requirement: the angle between the line connecting the first press position 321 and the second press position 322 and the first direction is an acute angle. Preferably, the angle between the line connecting the first press position 321 and the second press position 322 and the first direction is α, where α is greater than or equal to 80 degrees and less than or equal to 88 degrees. This configuration makes the first press position 321 closer to the electronic control device 31 in the first direction relative to the second press position 322.

[0050] In actual operation, when the operator holds the main body 10 (preferably the handle 11), the index finger presses the first pressing position 321 and the middle finger presses the second pressing position 322. Normally, the index finger is shorter than the middle finger. If the middle finger can press the trigger 32 just right, then the index finger cannot press the trigger 32 effectively. If the index finger wants to press the trigger effectively, it needs to exert more force, which leads to easy fatigue of the index finger.

[0051] As mentioned above, in this embodiment, the angle between the line connecting the first pressing position 321 and the second pressing position 322 and the first direction is an acute angle, which makes the first pressing position 321 closer to the electronic control device 31 in the first direction than the second pressing position 322. This can compensate for the problem caused by the short index finger, thereby improving the problem of uneven force on the index and middle fingers, reducing operator fatigue, and improving the accuracy and comfort of operation.

[0052] Please continue reading. Figure 2 In another optional embodiment, the second pressing position 322 is located in front of the first pressing position 321 in the first direction, that is, the first pressing position 321 is located behind the second pressing position 322 in the first direction. Preferably, the distance between the second pressing position 322 and the first pressing position 321 in the first direction is b, where b is greater than or equal to 1.5 mm and less than or equal to 2 mm. This configuration makes the first pressing position 321 closer to the electronic control device 31 in the first direction relative to the second pressing position 322, which can compensate for the problem caused by the short index finger, thereby improving the problem of uneven force on the index and middle fingers, reducing operating fatigue, and improving operating accuracy and comfort.

[0053] In a preferred embodiment, the angle between the second direction and the first direction is 180 degrees, that is, the second direction is opposite to the first direction, and the sliding direction of the trigger 32 is parallel to the output end 21. At this time, the relative orientation relationship between the first pressing position 321 and the second pressing position 322 is achieved only by designing the concave and convex undulations of the pressing surface 320. The structure is simple and the cost is low.

[0054] There are various ways to install the switch assembly 30, as long as the electronic control device 31 is fixedly connected to the main body 10, and the trigger 32 is slidably installed relative to the electronic control device 31. In this embodiment, please refer to the relevant documentation. Figures 4 to 7The electronic control device 31 includes an electronic control box 311, and a trigger 32 is slidably mounted on the electronic control box 311 and slides towards the electronic control box 311 in a second direction when pressed. The main body 10 includes a handle 11, in which a mounting cavity 110 is formed, and a mounting channel 113 is provided to connect the mounting cavity 110 and the outside of the main body 10. The electronic control box 311 is installed in the mounting cavity 110, and the trigger 32 is slidably inserted into the mounting channel 113. In an optional embodiment, a guide rail or a limiting groove may be provided in the mounting channel 113 to limit the sliding direction of the trigger 32 when pressed and when reset. The trigger 32 is at least partially exposed in the mounting channel 113. When pressed, it slides towards the mounting cavity 110 to trigger a micro switch or other triggering mechanism in the electronic control box 311, thereby controlling the drive assembly 20 to start driving, so that the power tool 1 starts working. In this way, the electric control device 31 is integrated into a module for installation. During assembly, it is only necessary to install the already assembled electric control device 31 into the handle 11. The modular structure facilitates assembly and maintenance and can also improve the assembly efficiency of the power tool 1.

[0055] Furthermore, please continue to refer to [the relevant sources]. Figure 4 , Figure 6 and Figure 7 The handle 11 includes a detachably connected first housing 111 and a second housing 112, which together form a mounting cavity 110. The first housing 111 and the second housing 112 are detachably connected and fixed by screws, clips, or other means. The inner side of the first housing 111 is provided with a first mounting rib 40, and the inner side of the second housing 112 is provided with a second mounting rib 50. The control box 311 is press-fitted between the first mounting rib 40 and the second mounting rib 50 to limit the position of the control box 311.

[0056] Preferably, the first mounting rib 40 is injection molded integrally with the first housing 111, and the second mounting rib 50 is injection molded integrally with the second housing 112. When the first housing 111 and the second housing 112 are assembled in place, the first mounting rib 40 and the second mounting rib 50 can each generate a certain elastic deformation to produce a clamping force to fix the electrical control box 311 and restrict its movement. That is, the electrical control box 311 is tightly fitted with the first mounting rib 40 and the second mounting rib 50. Of course, the first mounting rib 40 and the second mounting rib 50 may not generate elastic deformation and may simply abut against the electrical control box 311.

[0057] The installation method of the aforementioned electronic control device 31 facilitates maintenance, and the first mounting rib 40 and the second mounting rib 50 ensure positioning accuracy. The structural design of the first mounting rib 40 and the second mounting rib 50 allows the electronic control box 311 to be installed in the handle 11 according to the preset relative position. This ensures that after the electronic control box 311 is installed, the relative positional relationship between the first pressing position 321 and the second pressing position 322 on the trigger 32 meets the design requirements, thereby improving the problem of uneven force on the index and middle fingers, reducing operator fatigue, and improving operating accuracy and comfort.

[0058] like Figure 6 and Figure 7 As shown, the first mounting rib 40 and the second mounting rib 50 respectively include a transverse rib 70 and a longitudinal rib 60 disposed around the periphery of the electrical control box 311. The transverse rib 70 extends along the second direction and is distributed at both ends of the electrical control box 311 in the third direction, thereby limiting the travel of the electrical control box 311 in the third direction. The longitudinal rib 60 extends along the third direction and is distributed at least at the end of the electrical control box 311 away from the mounting channel 113 in the second direction, thereby limiting the travel of the electrical control box 311 in the second direction, wherein the third direction is perpendicular to the second direction. In this embodiment, the outer periphery of the electrical control box 311 extends along the second direction and the third direction, and the transverse rib 70 and the longitudinal rib 60 are designed to fit the shape of the outer periphery of the electrical control box 311 to achieve precise positioning of the outer periphery of the electrical control box 311.

[0059] In the first mounting rib position 40, the transverse rib 70 is connected to the longitudinal rib 60 to form two corner ribs 42. The two corner ribs 42 are correspondingly arranged around the outer periphery of the two corners of the electrical control box 311 away from the mounting channel 113. The first mounting rib also includes at least two pressing ribs 41, wherein the two pressing ribs 41 are distributed one-to-one on the inner side of the two corner ribs 42, and the protrusion height relative to the inner side of the first housing 111 is lower than that of each corner rib 42. Each pressing rib 41 presses against the end face of the electrical control box 311. That is to say, as Figure 5 As shown, when the control box 311 is assembled in the first housing 111, its corner away from the mounting channel 113 is limited by the corner rib 42, while its end facing the first housing 111 is pressed against the pressure rib 41. At this time, the assembly of the control box 311 and the first housing 111 is completed, and the trigger 32 is slidably inserted into the mounting channel 113.

[0060] Optionally, in the second mounting rib position 50, the longitudinal ribs 60 are distributed on the end side of the electrical control box 311 away from the mounting channel 113 in the second direction, and the transverse ribs 70 are connected to the longitudinal ribs 60 to form an opening rib 51 extending along a U-shape and with its opening facing the mounting channel 113. The opening rib 51 presses against the end face of the electrical control box 311. In this embodiment, after the electrical control box 311 and the first housing 111 are assembled, the second housing 112 can be placed on top of the first housing 111, so that the two enclose a mounting cavity 110. At this time, the opening rib 51 and the pressing rib 41 are respectively pressed on both sides of the electrical control box 311. These two sides are perpendicular to the second direction and the third direction, so as to realize the pressing and fixing of the electrical control box 311. Then, the second housing 112 is connected and fixed to the second housing 112 by means of screws or other methods, so as to realize the installation of the electrical control device 31 and the installation is reliable.

[0061] In this embodiment, the first mounting rib 40 limits the electrical control box 311 in the second direction and the third direction; the pressure rib 41 and the opening rib 51 limit the electrical control box in the direction perpendicular to the second direction and the third direction. The electrical control box 311 is reliably limited, avoiding abnormalities caused by the shaking of the switch assembly during the operation of the power tool.

[0062] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the protection scope of this utility model.

Claims

1. A power tool, characterized in that, include: main body; A drive assembly is mounted on the main body. The drive assembly includes a power mechanism and an output end driven by the power mechanism. The output end is located at the front end of the power mechanism in a first direction. as well as, A switch assembly is mounted on the main body. The switch assembly includes an electronic control device and a trigger. The trigger is slidably disposed relative to the electronic control device and is capable of triggering the electronic control device during a sliding stroke in a second direction to change the operating state of the drive assembly. The trigger has a pressing surface exposed on the outside of the main body. A first pressing position and a second pressing position are formed on the pressing surface. The first pressing position and the second pressing position are arranged sequentially in a direction relatively away from the drive assembly. The angle between the line connecting the first pressing position and the second pressing position and the first direction is an acute angle.

2. The power tool as described in claim 1, characterized in that, The angle between the line connecting the first pressing position and the second pressing position and the first direction is α, where α is greater than or equal to 80 degrees and less than or equal to 88 degrees.

3. A power tool, characterized in that, include: main body; A drive assembly is mounted on the main body. The drive assembly includes a power mechanism and an output end driven by the power mechanism. The output end is located at the front end of the power mechanism in a first direction. as well as, A switch assembly is mounted on the main body. The switch assembly includes an electronic control device and a trigger. The trigger is slidably disposed relative to the electronic control device and is capable of triggering the electronic control device during a sliding stroke in a second direction to change the operating state of the drive assembly. The trigger has a pressing surface exposed on the outside of the main body. A first pressing position and a second pressing position are formed on the pressing surface. The first pressing position and the second pressing position are arranged sequentially in a direction relatively away from the drive assembly. The second pressing position is located in front of the first pressing position in the first direction.

4. The power tool as described in claim 3, characterized in that, The distance between the second pressing position and the first pressing position in the first direction is b, where b is greater than or equal to 1.5 mm and less than or equal to 2 mm.

5. The power tool as described in any one of claims 1 to 4, characterized in that, The linear distance l between the first pressing position and the second pressing position is greater than or equal to 12 mm and less than or equal to 20 mm; and / or, The pressing surface is an undulating arc surface in the direction away from the driving component. The rearmost position of the surface of the groove in the first direction constitutes the first pressing position, and the frontmost position of the convex surface in the first direction constitutes the second pressing position; or... Two spaced grooves are formed on the pressing surface, and the surfaces of the two grooves respectively constitute the first pressing position and the second pressing position; or... Two protrusions are formed on the pressing surface at a distance, and the surfaces of the two protrusions respectively constitute the first pressing position and the second pressing position.

6. The power tool as claimed in any one of claims 1 to 4, characterized in that, The electronic control device includes an electronic control box, the trigger is slidably mounted on the electronic control box and slides towards the electronic control box in a second direction when pressed, the main body includes a handle, the handle has a mounting cavity and an opening of a mounting channel connecting the mounting cavity and the outside of the main body, the electronic control box is mounted in the mounting cavity, and the trigger is slidably inserted into the mounting channel.

7. The power tool as claimed in any one of claims 1 to 4, characterized in that, The angle between the second direction and the first direction is 180 degrees.

8. The power tool as described in claim 6, characterized in that, The handle includes a detachably connected first housing and a second housing, which together enclose the mounting cavity. The inner side of the first housing is provided with a first mounting rib, and the inner side of the second housing is provided with a second mounting rib. The control box is installed between the first mounting rib and the second mounting rib to limit the position of the control box.

9. The power tool as claimed in claim 8, characterized in that, The first mounting rib and the second mounting rib each include a transverse rib and a longitudinal rib. The transverse rib extends along the second direction and is distributed at both ends of the electrical control box in the third direction. The longitudinal rib extends along the third direction and is distributed at least at the end of the electrical control box away from the mounting channel in the second direction, wherein the third direction is perpendicular to the second direction.

10. The power tool as claimed in claim 9, characterized in that, In the first mounting rib, the transverse rib is connected to the longitudinal rib to form two corner ribs. The two corner ribs are correspondingly arranged around the outer periphery of the two corners of the electrical control box away from the mounting channel. The first mounting rib also includes at least two pressing ribs, wherein the two pressing ribs are distributed one-to-one on the inner side of the two corner ribs, and their protrusion height relative to the inner side of the first housing is lower than that of each corner rib. Each pressing rib presses against the end face of the electrical control box; and / or, In the second mounting rib position, the transverse rib is connected to the longitudinal rib to form an opening rib extending along a U-shape and with its opening facing the mounting channel, and the opening rib presses against the end face of the electrical control box.

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