Electric tool, and electric motor and operation handle thereof

Abstract

An electric tool (30), and an electric motor (10) and an operation handle (20) thereof. The electric motor (10) comprises an electric motor main body (11), and an electric motor shaft (12) having one end connected inside the electric motor main body (11) and the other end extending from the electric motor main body (11), wherein a first cross section of the electric motor shaft (12) perpendicular to the axial direction thereof is non-circular, the shape and size of the first cross section match the shape and size of a second cross section of a shaft assembly hole (24) in the operation handle, the second cross section is perpendicular to the direction of depth of the shaft assembly hole (24), and the shaft assembly hole (24) can allow the electric motor shaft (12) to extend into a transmission gearbox (21) of the operation handle (20) for assembly; and a handle connecting structure (13) is provided on the electric motor main body (11), and the handle connecting structure (13) is configured to fit with an electric motor connecting structure (26) on the operation handle (20) to realize the detachable assembly of the electric motor (10) on the operation handle (20). The same electric motor (10) can be assembled onto different types of operation handles (20) to obtain different types of electric tools (30), and when a electric tool (30) malfunctions, a user does not need to purchase an entire new electric tool (30) again, thereby reducing the cost of the electric tool (30).

Description

Electric tool, motor and operating handle thereof Technical Field

[0001] The present application relates to the field of electromechanical technology, and in particular to an electric tool and its motor and operating handle. Background Art

[0002] Power tools are common in people's daily lives. For example, in the fields of construction and renovation, various power tools such as electric drills, electric hammers, and electric wrenches are indispensable. Compared with traditional tools, power tools are more labor-saving and more efficient. However, at the same time, power tools also have a higher cost than traditional tools, especially those of high-quality power tools, which are even more expensive. For people who need to deal with power tools on a long-term basis, such as renovation workers, they generally need to have a variety of power tools on hand, so the cost of power tools is a considerable expense for them. For people who only need to use power tools occasionally, because they have fewer opportunities to use power tools, they would rather use more labor-intensive traditional tools for simple repairs than spend money to purchase a full set of power tools.

[0003] Therefore, how to reduce the cost of power tools is a technical problem that needs to be solved urgently.

[0004] Summary of the Invention

[0005] In order to reduce the cost of electric tools, the present application provides an electric tool, a motor, and an operating handle thereof.

[0006] In a first aspect, the present application provides a motor, comprising a motor body, a motor shaft having one end connected to the interior of the motor body and the other end extending outside the motor body;

[0007] The first cross-section of the motor shaft perpendicular to its axial direction is non-circular, and the shape and size of the first cross-section match the shape and size of the second cross-section of the shaft assembly hole in the working handle. The second cross-section is perpendicular to the depth direction of the shaft assembly hole, and the shaft assembly hole allows the motor shaft to extend into the transmission gear box of the working handle for assembly;

[0008] The motor body is provided with a handle connection structure, and the handle connection structure is configured to cooperate with the motor connection structure on the working handle to achieve detachable assembly of the motor on the working handle.

[0009] By adopting the above technical solution, the shape and size of the first cross section of the motor shaft in the motor matches the shape and size of the second cross section of the shaft assembly hole in the working handle; at the same time, a handle connection structure is provided on the motor body, which can cooperate with the motor connection structure on the working handle, thereby realizing the detachable assembly of the motor on the working handle. The motor provided by this application can be independent of the working handle, and there is no binding relationship between the two. Therefore, the same motor can be assembled with different types of working handles to obtain different types of power tools. The user only needs to purchase one power tool and multiple different types of working handles to have different types of power tools. Compared with purchasing multiple power tools with independent motors, this greatly reduces the cost of the power tool. At the same time, because the power tool is obtained by combining two independent products, the motor and the working handle, when the power tool fails, the user only needs to repurchase the broken product after determining the cause of the failure. For example, if the problem is with the motor, the motor can be repurchased and the working handle can continue to be used. If the problem is with the working handle, the corresponding working handle can be repurchased and the motor can be retained. There is no need to repurchase the entire power tool, which further reduces the cost of using the power tool.

[0010] Optionally, the first cross section satisfies at least one of the following conditions:

[0011] The first cross section is a polygon;

[0012] The first cross section is any one of a quadrilateral and a D-shape, and the outline of the D-shape is formed by connecting a line segment and a curve end to end;

[0013] At least part of each vertex angle of the first cross section is a rounded angle.

[0014] By adopting the above technology, when at least part of the top angles of the first cross section of the motor shaft are set as chamfered angles, the impact of various bumps on the corners of the motor shaft during multiple assembly and disassembly processes can be reduced, and the risk of deformation of the motor shaft can be reduced. This enhances the quality of the motor and reduces the damage to the shaft assembly hole on the operating handle caused by the motor shaft during assembly and disassembly, thereby extending the service life of the motor and the operating handle.

[0015] Optionally, the motor body has a first assembly end, the motor shaft extends from an end surface of the first assembly end, the first assembly end is configured to cooperate with the second assembly end of the operating handle, and the orifice of the shaft assembly hole is opened on the end surface of the second assembly end;

[0016] The handle connection structure includes a first connection member provided at the first assembly end, the first connection member being configured to cooperate with a second connection member in the motor connection structure, the second connection member being provided at the second assembly end; the cooperation between the first connection member and the second connection member includes at least one of the following:

[0017] One of the first connecting member and the second connecting member includes an assembly boss, and the other includes an assembly groove that cooperates with the assembly boss; a plurality of buckling members are provided on the side of the assembly boss, and an elastic buckling ring is provided along the inner side wall of the assembly groove. When the motor is assembled, the assembly boss extends into the assembly groove, and the elastic buckling ring is clamped on the buckling member; when the motor is disassembled, the elastic buckling ring is deformed by force, so that the buckling member can be withdrawn and separated from the elastic buckling ring.

[0018] One of the first connecting member and the second connecting member includes a variable buckle, and the other includes a limiting slot; the variable buckle includes a main body piece and a buckle limiting member fixed to the main body piece; when the motor is assembled, the buckle limiting member is configured to extend into the limiting slot and engage with the limiting slot; when the motor is disassembled, the main body piece is deformed under force, driving the buckle limiting member to move out of the limiting slot.

[0019] By adopting the above technical solution, the matching method between the first connecting member in the handle connecting structure and the second connecting member in the motor connecting structure is simple. While ensuring the reliability of the connection between the motor and the working handle, it also makes the assembly and disassembly between the motor and the working handle simple and easy to implement, thereby improving the disassembly efficiency between the motor and the working handle.

[0020] Optionally, a power receiving connection structure is further provided on the motor body, and the power receiving connection structure is configured to be electrically connected to the power supply connection structure on the operating handle when the motor is assembled, so that the operating handle can supply power to the motor.

[0021] By adopting the above technical solution, when the motor is assembled, the power receiving connection structure on the motor can be electrically connected to the power supply connection structure on the working handle, so that the working handle supplies power to the motor. Therefore, when the motor and the working handle are assembled, the electrical connection between the two is also realized. The user does not need to specifically electrically connect the motor and the working handle after assembling the motor, which further reduces the assembly burden and usage burden of the power tool.

[0022] In a second aspect, the present application provides a working handle of an electric tool, the working handle comprising a transmission gear box and a holding handle, wherein the holding handle is fixedly connected to the transmission gear box;

[0023] The end of the transmission gear box that cooperates with the working head of the power tool is the front end, and the end that cooperates with the motor is the rear end, the front end is provided with a working head connector, and the working head connector is configured to connect the working head; the rear end is provided with a shaft assembly hole that cooperates with the motor shaft of the motor, the second cross-section of the shaft assembly hole is non-circular, and the shape and size of the second cross-section match the shape and size of the first cross-section of the motor shaft, the first cross-section is perpendicular to the axial direction of the motor shaft, and the second cross-section is perpendicular to the depth direction of the shaft assembly hole, and the shaft assembly hole allows the motor shaft to extend into the transmission gear box for assembly;

[0024] The rear end is further provided with a motor connection structure, and the motor connection structure is configured to cooperate with the handle connection structure on the motor to achieve detachable assembly of the motor on the operating handle.

[0025] By adopting the above technical solution, the shape and size of the second cross-section of the shaft assembly hole in the working handle match the shape and size of the first cross-section of the motor shaft in the motor; at the same time, the motor connection structure on the working handle can cooperate with the handle connection structure on the motor, thereby realizing the detachable assembly of the motor on the working handle. The working handle provided by the present application can be independent of the motor, and there is no binding relationship between the two. Therefore, by assembling the same motor with different types of working handles, different types of power tools can be obtained. The user only needs to purchase one power tool and multiple different types of working handles to have different types of power tools. Compared with purchasing multiple power tools with independent motors, this greatly reduces the cost of the power tool. At the same time, because the power tool is obtained by combining two independent products, the motor and the working handle, when the power tool fails, the user only needs to repurchase the broken product after determining the cause of the failure. For example, if the problem is with the motor, the motor can be repurchased and the working handle can continue to be used. If the problem is with the working handle, the corresponding working handle can be repurchased and the motor can be retained. There is no need to repurchase the entire power tool, which further reduces the cost of using the power tool.

[0026] Optionally, the first cross section satisfies at least one of the following conditions:

[0027] The first cross section is a polygon;

[0028] The first cross section is any one of a quadrilateral and a D-shape, and the outline of the D-shape is formed by connecting a line segment and a curve end to end;

[0029] At least a portion of each vertex corner of the second cross section is a rounded corner.

[0030] By adopting the above technology, when at least part of the top angles of the second cross section of the shaft assembly hole in the working handle are set to be chamfered, at least part of the top angles of the first cross section of the motor shaft on the motor will also be set to be chamfered. This can reduce the impact of various bumps on the corners of the motor shaft during multiple assembly and disassembly processes, reduce the risk of deformation of the motor shaft, enhance the quality of the motor, and reduce the damage caused by the motor shaft to the shaft assembly hole on the working handle during disassembly and assembly, thereby extending the service life of the motor and the working handle.

[0031] Optionally, the rear end is a second assembly end of the operating handle, and the second assembly end is configured to cooperate with the first assembly end of the motor;

[0032] The motor connection structure includes a second connector provided at the second assembly end, the second connector being configured to cooperate with a first connector in the handle connection structure, the first connector being provided at the first assembly end; the cooperation between the first connector and the second connector includes at least one of the following:

[0033] One of the first connecting member and the second connecting member includes an assembly boss, and the other includes an assembly groove that cooperates with the assembly boss; a plurality of buckling members are provided on the side of the assembly boss, and an elastic buckling ring is provided along the inner side wall of the assembly groove. When the motor is assembled, the assembly boss extends into the assembly groove, and the elastic buckling ring is clamped on the buckling member; when the motor is disassembled, the elastic buckling ring is deformed by force, so that the buckling member can be withdrawn and separated from the elastic buckling ring.

[0034] One of the first connecting member and the second connecting member includes a variable buckle, and the other includes a limiting slot; the variable buckle includes a main body piece and a buckle limiting member fixed to the main body piece; when the motor is assembled, the buckle limiting member is configured to extend into the limiting slot and engage with the limiting slot; when the motor is disassembled, the main body piece is deformed under force, driving the buckle limiting member to move out of the limiting slot.

[0035] By adopting the above technical solution, the matching method between the first connecting member in the handle connecting structure and the second connecting member in the motor connecting structure is simple. While ensuring the reliability of the connection between the motor and the working handle, it also makes the assembly and disassembly between the motor and the working handle simple and easy to implement, thereby improving the disassembly efficiency between the motor and the working handle.

[0036] Optionally, the operating handle is also provided with a feeding connection structure and a power supply connection structure electrically connected to the feeding connection structure. The feeding connection structure is configured to be electrically connected to the output end of the power supply, and the power supply connection structure is configured to be electrically connected to the power receiving connection structure on the motor when the motor is assembled to supply power to the motor.

[0037] By adopting the above technical solution, when the motor is assembled, the power receiving connection structure on the motor can be electrically connected to the power supply connection structure on the working handle, so that the working handle uses the power supply to supply power to the motor. Therefore, when the motor and the working handle are assembled, the electrical connection between the two is also realized. The user does not need to specifically electrically connect the motor and the working handle after assembling the motor, which further reduces the assembly burden and usage burden of the power tool.

[0038] Optionally, the operating handle is further provided with a battery fixing structure, which is configured to cooperate with the handle fixing structure on the battery assembly to achieve detachable assembly of the battery assembly on the operating handle; the feed connection structure is configured to be electrically connected to the output terminal of the battery assembly when the battery assembly is assembled;

[0039] One of the battery fixing structure and the handle fixing structure includes a slide groove, and the other includes a convex slide bar that cooperates with the slide groove; one of the battery fixing structure and the handle fixing structure also includes an elastic insertion buckle, and the other also includes an insertion groove that cooperates with the elastic insertion buckle; in the battery assembled state, the convex slide bar slides into the end face of the first end of the slide groove and slides along the slide groove to the second end, and the elastic insertion buckle is inserted into the insertion groove; in the battery disassembled state, the elastic insertion buckle is forced to exit the insertion groove, and the convex slide bar slides from the second end of the slide groove to the first end, and slides out from the end face of the first end.

[0040] By adopting the above technical solution, the working handle can also power the motor through the battery assembly. This can make the operating range of the power tool unaffected by the location of the external power supply, thereby improving the user's flexibility in using the power tool. At the same time, because the working handle is detachably matched with the handle fixing assembly on the battery assembly via the battery fixing structure, the battery assembly and the working handle are decoupled. The same battery assembly can be assembled on different working handles, and the same working handle can also be matched with different battery assemblies. The purchase and replacement of the battery assembly and the purchase and replacement of the working handle do not affect each other, further reducing the cost of using the power tool for the user.

[0041] In a third aspect, the present application provides an electric tool comprising the motor described in any one of the first aspect and the working handle described in any one of the second aspect, wherein the motor is detachably connected to the working handle.

[0042] Through the above technical solution, the power tool is obtained by combining two independent products: a motor and a working handle. The motor can be detachably assembled on the working handle. In addition to driving the working handle to perform work, the motor can also be assembled on other working handles to form other power tools. Similarly, the working handle can also be adapted to other motors to form other power tools. Therefore, when the power tool malfunctions, the user only needs to repurchase the broken product after determining the cause of the malfunction. For example, if the problem is with the motor, the motor can be repurchased and the working handle can continue to be used. If the problem is with the working handle, the corresponding working handle can be repurchased and the motor can be retained. There is no need to repurchase the entire power tool, which further reduces the cost of using the power tool.

[0043] Optionally, the power tool further includes an identification component, which includes a controller, a memory, a detection device and an output unit, the detection device and the output unit and the memory are respectively communicated with the controller; the detection device includes at least one of a camera and an acoustic wave detector, which is configured to detect the target material to be worked on under the control of the controller; the memory stores a mapping relationship between a plurality of detection data and material information; the controller is configured to determine the material information of the target material based on the detection data of the detection device combined with the mapping relationship stored in the memory; the output unit is configured to output the material information of the target material under the control of the controller.

[0044] By adopting the above technical solution, an identification component is provided in the power tool, and the identification component can be used to detect and identify the target material to be operated by the power tool and output the material detection structure, so that the user can flexibly select the corresponding type of power tool according to the target material or replace the working handle and working head on the power tool in time, avoiding damage to the power tool and affecting the working efficiency due to the incompatibility between the target material and the tool, which is conducive to extending the service life of the power tool and improving the user's working efficiency.

[0045] In summary, this application includes at least the following beneficial technical effects:

[0046] 1. The motor can be independent of the operating handle, and there is no binding relationship between the two. Therefore, the same motor can be assembled on different types of operating handles to obtain different types of power tools. Users only need to purchase one power tool and multiple different types of operating handles to have different types of power tools. Compared with purchasing multiple power tools with independent motors, this greatly reduces the cost of power tools.

[0047] 2. The replacement of the motor in the power tool does not affect the operating handle, and the replacement of the operating handle does not affect the motor, which further reduces the cost of using the power tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] FIG1 is a schematic structural diagram of an electric tool provided in an embodiment of the present application at one viewing angle;

[0049] FIG2 is an exploded schematic diagram of the power tool in FIG1 ;

[0050] FIG3 is a schematic structural diagram of a motor provided in an embodiment of the present application;

[0051] FIG4 is a schematic structural diagram of an operating handle provided in an embodiment of the present application;

[0052] FIG5 is a schematic structural diagram of the electric tool provided in an embodiment of the present application from another perspective;

[0053] FIG6 is a schematic structural diagram of another electric tool provided in an embodiment of the present application at one viewing angle;

[0054] FIG7 is an exploded schematic diagram of the power tool in FIG6 ;

[0055] FIG8 is another exploded schematic diagram of the power tool in FIG6 ;

[0056] FIG9 is another structural schematic diagram of the operating handle provided in an embodiment of the present application;

[0057] FIG10 is a schematic diagram of a cooperation between a convex sliding strip and a sliding groove provided in an embodiment of the present application;

[0058] FIG11 is a schematic diagram of a hardware structure of an identification component in an electric tool provided in an embodiment of the present application;

[0059] FIG12 is a flow chart of a material identification method provided in an embodiment of the present application.

[0060] Description of reference numerals: 10 - motor; 11 - motor body; 12 - motor shaft; 13 - handle connecting structure; 131 - buckle; 132 - variable buckle; 1321-main body; 1322-clip limiter; 14-power receiving connection structure; 20-operating handle; 21-transmission gear box; 22-holding handle; 23-operating head connector; 24-axis assembly hole; 25-operating head receiving chamber; 26-motor connection structure; 261-elastic buckle ring; 262-limiting card slot; 263-disassembly button; 27-battery fixing structure; 271-convex slide; 2711-nesting head; 2712-connecting neck; 272-insertion slot; 28-power supply connection structure; 29-control switch; 30-power tool; 40-operating head; 50-battery assembly; 51-handle fixing structure; 511-slide slot; 512-elastic insertion buckle; 513-separation button; 60-identification component; 61-controller; 62-memory; 63-detection device; 64-output unit. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0062] To reduce the cost of power tools and further promote these labor-saving, high-efficiency tools, this embodiment provides a motor 10, a working handle 20, and a power tool 30. First, refer to FIG1 , which shows a schematic diagram of the power tool 30. The power tool 30 includes a motor 10 and a working handle 20. The motor 10 and the working handle 20 are detachably connected, so the motor 10 and the working handle 20 can be separated and each exists as an independent product. Please refer to FIG2 , which shows an exploded schematic diagram of the power tool 30.

[0063] Please refer to Figure 3. The motor 10 includes a motor body 11 and a motor shaft 12. It should be understood by those skilled in the art that the motor 10 is a device that converts electrical energy into mechanical energy. The motor body 11 includes a motor housing, main magnetic poles arranged in the motor housing, commutation magnetic poles and other components. One end of the motor shaft 12 of the motor 10 is connected to the inside of the motor body 11, and the other end extends out of the motor body 11. It can rotate under the drive of electric energy and drive external equipment to operate. There is no doubt that the cross-section of the motor shaft 12 (that is, the cross-section of the motor shaft 12 perpendicular to its axial direction) is not circular. In order to distinguish the cross-section of the motor shaft 12 from the cross-sections of other objects, the cross-section of the motor shaft 12 is referred to as the "first cross-section" in this embodiment.

[0064] Correspondingly, a shaft assembly hole 24 that cooperates with the motor shaft 12 is provided in the operating handle 20 adapted to the motor 10. Referring to FIG4 , the operating handle 20 includes a transmission gear box 21 and a holding handle 22. The holding handle 22 is fixedly connected to the transmission gear box 21. The transmission gear box 21 includes a gear box housing and components such as gears housed inside the gear box housing. It should be understood that although the holding handle 22 is fixedly connected to the side of the transmission gear box 21 in FIG4 and the operating handle 20 is in a "gun-like" form, in some other examples of this embodiment, the operating handle 20 may also be in a "hand-held cannon-like" form, or the holding handle 22 may be connected to the end of the transmission gear box 21. For example, the rear end of the transmission gear box 21 not only cooperates with the motor 10, but also extends an extension portion in the opposite direction of the extension of the motor shaft 12, and the extension portion extends to the end of the motor 10 to form the holding handle 22. In some other examples, there is no strict boundary between the holding handle 22 of the working handle 20 and the transmission gear box 21 , and a part of the transmission gear box 21 is the holding handle 22 .

[0065] In this embodiment, the end of the transmission gearbox 21 that mates with the working head (e.g., a drill bit, hammer head, stirring head, etc. of a power tool) 40 is used as the front end of the transmission gearbox 21, and the end of the transmission gearbox 21 that mates with the motor 10 is used as the rear end. Therefore, in this embodiment, a working head connector 23 is provided at the front end of the transmission gearbox 21, which is used to connect the working head 40. Since the working head 40 is the component of the power tool 30 that directly contacts the work object and wears quickly, the working head 40 in the power tool 30 is usually detachable and replaceable. Therefore, in some examples of this embodiment, the working handle 20 may or may not be provided with the working head 40 during the factory and sales process; the working head 40 may or may not be connected to the working head connector 23 of the working handle 20. For example, as shown in Figure 5, the working handle 20 is provided with the working head 40, but the working head 40 is not assembled to the working head connector 23, but is instead accommodated in the working head receiving cavity 25 of the working handle 20. When the user needs to use the power tool 30 for operation, the corresponding operation head 40 can be taken out from the operation head receiving cavity 25 and installed on the operation head connector 23 of the operation handle 20. When the power tool 30 needs to be stored, the operation head 40 can be removed from the operation head connector 23 and clamped into the operation head receiving cavity 25 to prevent the sharp operation head 40 from damaging the storage box or storage bag, and to prevent the operation head 40 from stabbing or scratching the user. It can be understood by those skilled in the art that although the operation head receiving cavity 25 in FIG5 fixes the operation head 40 by clamping, in some other examples of this embodiment, the operation head receiving cavity 25 can also fix the operation head 40 by other means, such as providing a lid that supports opening and closing at the opening of the cavity. In other application scenarios, the user can assemble a operation head 40 on the operation head connector 23 while placing another operation head 40 in the operation head receiving cavity 25 as a spare.

[0066] A shaft assembly hole 24 that cooperates with the motor shaft 12 is provided at the rear end of the transmission gear box 21. For ease of introduction, the cross section of the shaft assembly hole 24 (the cross section perpendicular to its depth direction) is referred to as the "second cross section" in this embodiment. The shape and size of the second cross section match the shape and size of the first cross section. Those skilled in the art should understand that matching means that the shaft assembly hole 24 can be inserted into and assembled with the motor shaft 12. After the motor 10 is assembled, the motor shaft 12 can drive the gears in the transmission gear box 21 to rotate normally, thereby driving the operating head 40 to operate. Therefore, the shape and size of the second cross section match the shape and size of the first cross section, which means that the two have the same shape and are both non-circular, but the size of the first cross section is slightly smaller than that of the second cross section.

[0067] In some examples of the present embodiment, the first cross section and the second cross section are both polygonal, such as a triangle, a quadrilateral, a pentagon, etc. It will be understood by those skilled in the art that in some other examples of the present embodiment, the number of sides of the first cross section and the second cross section can be more, which will not be enumerated here. It should be understood that the more sides a polygon has, the closer it is to a circle, so in this embodiment, the number of sides of the first cross section and the second cross section will not be set too many. In some examples, the first cross section and the second cross section are quadrilaterals, such as a rectangle, a square or a trapezoid, a common parallelogram, etc. In other examples, the first cross section and the second cross section can also be runway-shaped, D-shaped, etc., where the so-called D-shape refers to a figure whose outline is composed of a line segment and a curve connected end to end.

[0068] In some examples of this embodiment, at least part of the top angles of the first cross section and the second cross section are chamfered, that is, the edges and corners of the motor shaft 12 are not sharp corners, and the adjacent sides of the motor shaft 12 transition relatively smoothly. In some examples of this embodiment, each top angle of the first cross section and the second cross section is a chamfered corner. It will be understood by those skilled in the art that, compared to sharp corners, chamfered corners are less likely to cause problems such as deformation due to collisions and abnormal assembly, which is beneficial to extending the service life of the motor 10, is less likely to scratch other objects, and is safer.

[0069] In some examples of this embodiment, the motor 10 is provided with a handle connection structure 13 for fixedly connecting the working handle 20, and the working handle 20 is provided with a motor connection structure 26 for fixedly connecting the motor 10. For example, in FIG3 , the handle connection structure 13 is provided on the motor body 11, and the motor body 11 has a first assembly end that cooperates with the working handle 20, and the motor shaft 12 extends from the end face of the first assembly end. Please continue to refer to FIG4 , the working handle 20 has a second assembly end that cooperates with the motor 10, and the motor connection structure 26 is provided at the rear end of the transmission gear box 21, so the rear end of the transmission gear box 21 is the second assembly end of the working handle 20. The handle connection structure 13 includes a first connecting member provided at the first assembly end, and the motor connection structure 26 includes a second connecting member provided at the second assembly end.

[0070] In some examples of this embodiment, one of the first and second connecting members is a mounting boss, and the other is a mounting groove that mates with the mounting boss. For example, in FIG3 , the first connecting member is a mounting boss, and the second connecting member is a mounting groove. In other words, the mounting boss is located on the motor body 11, and the mounting groove is located on the gearbox 21. In this embodiment, the motor shaft 12 extends from the center of the mounting boss; the shaft mounting hole 24 is located at the bottom of the mounting groove.

[0071] Several buckling members 131 are provided on the side of the assembly boss. For example, in FIG3 , the side of the assembly boss is provided with multiple buckling members 131, and an elastic buckling ring 261 is provided along the inner sidewall of the assembly groove. The inner sidewall of the assembly groove is provided with multiple limiting structures to fix the elastic buckling ring 261 to the sidewall of the assembly groove. In some examples of this embodiment, the elastic buckling ring 261 can be an annular buckling spring. The buckling member 131 is provided with a structure to limit the elastic buckling ring 261. When the motor is assembled (i.e., during the process of assembling the motor 10 to the operating handle 20), the assembly boss extends into the assembly groove, and the elastic buckling ring 261 is clamped on the buckling member 131. Therefore, the elastic buckling ring 261 cooperates with each buckling member 131 to achieve a fixed connection between the motor 10 and the operating handle 20. When the motor is disassembled (i.e., during the process of disassembling and separating the motor 10 and the operating handle 20), the elastic retaining ring 261 is deformed by force, allowing the retaining member 131 to use the deformation space to exit and separate from the elastic retaining ring 261. In some examples of this embodiment, a disassembly button 263 is provided on the transmission gear box 21. The disassembly button 263 is connected to the elastic retaining ring 261. When the disassembly button 263 is subjected to pressure, it transmits the pressure to the elastic retaining ring 261, causing the elastic retaining ring 261 to deform under force. Therefore, when it is necessary to disassemble the motor 10 and the operating handle 20, the user can press the disassembly button 263 to apply force to the elastic retaining ring 261.

[0072] Those skilled in the art will appreciate that, in some other examples of this embodiment, the implementations of the first connecting member and the second connecting member may be interchanged, for example, the assembly groove and the elastic buckle ring 261 may be arranged at the first assembly end of the motor 10, and the assembly boss and the buckle 131 may be arranged at the second assembly end of the operating handle 20.

[0073] In other examples of this embodiment, one of the first connecting member and the second connecting member is a variable buckle 132, and the other is a limiting slot 262. For example, in FIG3 , the first connecting member is the variable buckle 132, and in FIG4 , the second connecting member is the limiting slot 262. In other words, the variable buckle 132 is located on the motor body 11, and the limiting slot 262 is located on the transmission gearbox 21. The variable buckle 132 includes a main body sheet 1321 and a buckle limiting member 1322, and the buckle limiting member 1322 is provided on the main body sheet 1321. In this embodiment, the main body sheet 1321 is a sheet-like structure with deformation capability. For example, in FIG3 , the main body sheet 1321 will constitute a portion of the outer shell of the motor body 11, and therefore the main body sheet 1321 is a curved surface. Part of the main piece 1321's edge is fixedly connected to the main housing of the motor body 11, while the other part is a suspended "free edge" that is not fixedly connected to the main housing. This allows the main piece 1321 to deform when subjected to pressure, driving the snap-on retaining member 1322 to move. When the motor is assembled, the snap-on retaining member 1322 extends into and engages with the retaining slot 262. This cooperation between the snap-on retaining member 1322 and the retaining slot 262 secures the motor 10 to the operating handle 20. When the motor is disassembled, the main piece 1321 deforms under pressure, driving the snap-on retaining member 1322 out of the retaining slot 262, thereby separating the motor 10 from the operating handle 20. In this embodiment, because the main body piece 1321 is directly exposed to the outside, the user only needs to press the surface of the main body piece 1321 when applying force to the main body piece 1321. In other examples, if the main body piece 1321 is hidden inside the outer shell of the motor body 11, then it may also be necessary to set an exposed button to facilitate the user to apply force to the main body piece 1321 by pressing the button.

[0074] Those skilled in the art will appreciate that, in other examples, the positions of the variable buckle 132 and the limiting slot 262 can be interchanged, that is, the variable buckle 132 can be disposed on the operating handle 20, and the limiting slot 262 can be disposed on the motor 10. Furthermore, although FIG3 shows only one variable buckle 132 in the first connecting member and only one limiting slot 262 in the second connecting member, in other examples of this embodiment, a greater number of limiting slots 262 and variable buckles 132 can also be provided.

[0075] In addition, although in Figures 3 and 4, the first connecting member on the motor 10 includes both the buckle 131 and the variable buckle 132, and the second connecting member on the operating handle 20 includes both the elastic buckle ring 261 and the limiting slot 262, in some other examples of this embodiment, the first connecting member may include only one of the buckle 131 and the variable buckle 132, and not include the other; and the second connecting member may include only one of the elastic buckle ring 261 and the limiting slot 262, and not include the other. It will be understood by those skilled in the art that in some other examples of this embodiment, the first connecting member and the second connecting member may also be matched through other connection methods, and no specific limitation is made here.

[0076] In the above example, the motor 10 not only cooperates with the second assembly end of the operating handle 20 through its first assembly end, but also has a third assembly end, which cooperates with the fourth assembly end on the operating handle 20. Please continue to refer to Figures 3 and 4. Assuming that the first assembly end of the motor 10 on which the motor shaft 12 is provided is its front end, then the end at the bottom of the motor 10 is its third assembly end, and the end face of the first assembly end is adjacent to the end face of the third assembly end, and in the above example, the end faces of the two are roughly perpendicular. Correspondingly, the end face of the second assembly end on the operating handle 20 is also adjacent to the end face of the fourth assembly end, and are roughly perpendicular. In some other examples, the end face of the first assembly end may not be perpendicular to the end face of the third assembly end, and similarly, the end faces of the second assembly end and the fourth assembly end may not be perpendicular.

[0077] In other examples of this embodiment, the motor 10 is coupled to the second assembly end of the working handle 20 only through its first assembly end. In other examples, the motor 10 can be coupled to the working handle 20 through a greater number of assembly ends, for example, the motor 10 has three assembly ends, four assembly ends, or even five assembly ends.

[0078] It is undeniable that the operation of the motor 10 requires electrical energy. Therefore, when the motor 10 is assembled on the operating handle 20 and is in operation, it needs to be electrically connected to the power supply. Therefore, the motor body 11 of the motor 10 is also provided with a power receiving connection structure 14, as shown in Figure 3. In some examples of this embodiment, the power supply can be directly electrically connected to the motor 10, that is, the electrical connection does not need to be achieved through the operating handle 20. For example, the power supply can be a battery, and the output end of the battery is electrically connected to the power receiving connection structure 14 of the motor 10. In one example, the battery can be directly fixedly connected to the end of the motor body 11 or the side of the motor body 11. While being fixedly connected to the motor body 11, it also achieves an electrical connection with the power receiving connection structure 14 on the motor 10. In other examples, the power supply can be AC ​​power. In this case, the power receiving connection structure 14 provided on the motor body 11 can be a plug connected to the motor body 11.

[0079] In some other examples of this embodiment, the electrical connection between the power supply and the motor 10 needs to be achieved through the operating handle 20. In this case, the operating handle 20 is provided with a power supply connection structure 28 that cooperates with the power receiving connection structure 14 on the motor 10, and is also provided with a feeding connection structure (not shown in the figure) that cooperates with the output end of the power supply. The power receiving connection structure 14 on the motor 10 corresponds to the position of the power supply connection structure 28 on the operating handle 20. When the motor 10 is assembled, the power receiving connection structure 14 contacts the power supply connection structure 28 to achieve electrical connection. The power supply connection structure 28 in the operating handle 20 is electrically connected to the feeding connection structure, and usually a wire is connected between the two. The feeding connection structure is configured to be electrically connected to the output end of the power supply. The power supply here can also be a battery or AC power. If the power supply is AC power, the feeding connection structure can be a plug. If the power supply is a battery, the feeding connection structure can be a contact or electrical connection piece connected to the positive and negative poles of the battery.

[0080] In some examples of this embodiment, the power source is a battery assembly 50, which typically comprises at least two batteries. In some examples, the battery assembly 50 can be integrated with the motor 10 or the operating handle 20. For example, if the battery assembly 50 is integrated with the motor 10, the two cannot be separated; if the battery assembly 50 is integrated with the operating handle 20, the operating handle 20 and the battery assembly 50 also form an inseparable whole. In other examples of this embodiment, the battery assembly 50 can be removed from the power tool 30, allowing the user to purchase and install the battery assembly 50 separately. The same battery assembly 50 can also power different devices and different power tools 30.

[0081] For example, see Figures 6 to 9. Figure 6 shows another power tool 30, while Figures 7 and 8 are both exploded views of the power tool 30 in Figure 6. A battery assembly 50 is located at the end of the gripping handle 22 distal from the gearbox 21. Figure 9 illustrates the mating structure of the battery assembly 50 on the working handle 20. Of course, in other examples of this embodiment, the battery assembly 50 may also be located elsewhere on the working handle 20.

[0082] Referring to Figures 8 and 9 , the operating handle 20 is further provided with a battery securing structure 27 for securing the battery assembly 50. The battery assembly 50 is further provided with a handle securing structure 51 that cooperates with the battery securing structure 27. The interaction between the handle securing structure 51 and the battery securing structure 27 allows for the removable assembly of the battery assembly 50 from the operating handle 20. In Figures 8 and 9 , the battery securing structure 27 is disposed at the bottom of the gripping handle 22, away from the transmission gear box 21.

[0083] Typically, the battery assembly 50 is roughly in the shape of a rectangular parallelepiped. The rectangular parallelepiped-shaped battery assembly 50 can be matched with the holding handle 22 through its top surface and at least two side surfaces (for ease of introduction, the top surface of the battery assembly 50 that matches the holding handle 22 is referred to as the assembly top surface, and the side surfaces that match the holding handle 22 are referred to as the assembly side surfaces). In this case, the bottom of the holding handle 22 can semi-enclose the battery assembly 50, and the bottom of the holding handle 22 has an assembly top wall that matches the assembly top surface, and an assembly inner side wall that matches the assembly side surface. The output end of the battery assembly 50 can be set on at least one of the assembly top surface and the assembly side surface, and the feed connection structure of the operating handle 20 can be set on at least one of the assembly top wall and the assembly inner side wall. The handle fixing structure 51 of the battery assembly 50 can be set on at least one of the assembly top surface and the assembly side surface, and the battery fixing structure 27 of the operating handle 20 can be set on at least one of the assembly top wall and the assembly inner side wall. In Figures 7 and 8, the output end of the battery assembly 50 is located on its assembly top surface, and the handle fixing structure 51 is arranged on two opposite assembly side surfaces. Correspondingly, the feeding connection structure of the working handle 20 is arranged on its assembly top wall, and the battery fixing structure 27 is arranged on two opposite assembly inner side walls.

[0084] In some examples of this embodiment, one of the battery fixing structure 27 and the handle fixing structure 51 includes a slide groove 511, and the other includes a convex slide bar 271 that cooperates with the slide groove 511. For example, in Figures 7 to 9, the slide groove 511 is arranged on the battery assembly 50, and the convex slide bar 271 is arranged on the working handle 20, but in some other examples of this embodiment, the positions of the slide groove 511 and the convex slide bar 271 can be interchanged; there are also some examples in which the battery fixing structure 27 includes a first slide groove and a second convex slide bar, and the handle fixing structure 51 includes a first convex slide bar that cooperates with the first slide groove and a second slide groove that cooperates with the second convex slide bar. In this case, both the battery fixing structure 27 and the handle fixing structure 51 include the slide groove 511 and the convex slide bar 271 at the same time.

[0085] At least one end of the chute 511 is open. Assume that the two ends of the chute 511 are the first end and the second end, and the end surface of the first end is open. In addition to the end surface opening, the chute 511 also has a long strip-shaped notch. In some examples of this embodiment, a accommodating space for accommodating the battery assembly 50 is provided at the bottom of the holding handle 22, and the accommodating space has at least two opposite side walls, and a convex sliding strip 271 is provided on the inner side walls on the opposite sides, and a sliding groove 511 is also provided on the two opposite assembly side surfaces of the battery assembly 50. Therefore, through the cooperation of the sliding groove 511 and the convex sliding strip 271, the battery assembly 50 and the working handle 20 can be limited in the direction perpendicular to the assembly top surface of the battery assembly 50, and can also be limited in some directions parallel to the assembly top surface. However, in other directions parallel to the assembly top surface, there is still space for relative movement between the battery assembly 50 and the working handle 20, and the vibration generated during the use of the power tool 30 will further aggravate this relative movement, thereby causing the battery assembly 50 to unexpectedly detach from the working handle 20.

[0086] To prevent the battery assembly 50 from undesirably detaching from the operating handle 20, in some examples of this embodiment, the battery securing structure 27 and the handle securing structure 51 may engage with each other through other connecting components, in addition to the interlocking protruding slider 271 and the sliding groove 511. For example, in some examples, one of the battery securing structure 27 and the handle securing structure 51 includes an elastic insertion buckle 512, while the other includes an insertion groove 272 that engages with the elastic insertion buckle 512. As shown in the example corresponding to FIG8 , the handle securing structure 51 includes the elastic insertion buckle 512, and the battery securing structure 27 includes the insertion groove 272. The elastic insertion buckle 512 is disposed on the assembly top surface of the battery assembly 50, while the insertion groove 272 that engages with the elastic insertion buckle 512 is disposed on the assembly top wall of the gripping handle 22. When pressure is applied, the elastic insertion buckle 512 retracts inward toward the interior of the battery assembly 50 and re-emerges when the pressure is removed. Therefore, when the battery is assembled, the elastic insertion buckle 512 is first retracted due to the pressure from the bottom surface of the gripping handle 22. After the battery assembly 50 and the working handle 20 are fully assembled, the position of the elastic insertion buckle 512 corresponds to the position of the insertion slot 272. Therefore, when the pressure on the elastic insertion buckle 512 is removed, the elastic insertion buckle 512 can be re-ejected and extend into the insertion slot 272, thereby limiting the battery assembly 50 and the working handle 20 in a direction parallel to the top surface of the battery assembly 50. In addition, a separation button 513 connected to the elastic insertion buckle 512 is exposed on the outside of the battery assembly 50. When the battery assembly 50 needs to be removed, the user can press the separation button 513 to apply pressure to the elastic insertion buckle 512, thereby retracting the elastic insertion buckle 512 and simultaneously applying a pulling force in opposite directions to the battery assembly 50 and the working handle 20, causing the convex slide 271 on the working handle 20 to slide out of the end surface of the slide slot 511.

[0087] It will be understood by those skilled in the art that the rectangular battery assembly 50 can also be matched with the bottom surface of the holding handle 22 only through its top surface. In this case, the output end of the battery assembly 50 and the handle fixing structure 51 need to be set on its top surface, and the feeding connection structure and the battery fixing structure 27 on the working handle 20 need to be set on the bottom surface of the holding handle 22.

[0088] In these examples, the chute 511 and the convex slider 271 can have more specialized structures. For example, in a direction parallel to the slot opening and perpendicular to the chute 511 (generally speaking, the width direction), the internal space of the chute 511 is larger than the slot opening, that is, the internal width of the chute 511 is larger than the slot opening. One side of the convex slider 271 is fixed to the bottom of the handle 22, which is the fixed side, and the other side is suspended, which is the suspended side. For ease of description, the convex slider 271 is divided into a nesting head 2711 and a connecting neck 2712 along the direction from the fixed side to the suspended side. The connecting neck 2712 is thinner than the nesting head 2711. In the battery assembly state (i.e., during battery assembly), the convex slider 271 slides into the end surface of the first end of the chute 511, and the nesting head 2711 is embedded in the chute 511 and slides along the chute 511 to the second end. Please refer to Figure 10, which shows a cross-sectional schematic diagram of the structure of the chute 511 and the convex slider 271. Because the width of the chute 511 is smaller than the dimension of the nesting head 2711 in the same direction, the nesting head 2711 cannot escape from the notch, thus achieving a fixed fit between the battery assembly 50 and the operating handle 20. In the battery disassembly state (i.e., during the process of disassembling and separating the battery assembly 50 and the operating handle 20), the convex slider 271 slides out from the end surface of one end of the chute 511, achieving separation of the battery assembly 50 from the operating handle 20. In some examples of this embodiment, in order to prevent the convex slide 271 from sliding into the first end of the slide groove 511 and then directly sliding out from the second end, a limiting structure can be set at the second end of the slide groove 511, for example, the end surface of the second end is sealed, and / or a blocking structure is set at the end of the convex slide 271 opposite to the first end, so that the convex slide 271 can only slide into the first end of the slide groove 511 and can only slide out from the first end.

[0089] Similarly, in order to prevent the battery assembly 50 and the working handle 20 from moving relative to each other in a direction parallel to the assembly top surface of the battery assembly 50 during normal use of the power tool 30, thereby causing the battery assembly 50 to unexpectedly detach from the working handle 20, elastic insertion buckles 512 and insertion slots 272 and other structures can also be provided in this example.

[0090] In some examples of this embodiment, the power tool 30 may also include an identification component 60, as shown in Figure 11. The identification component 60 includes a controller 61, a memory 62, a detection device 63 and an output unit 64. The controller 61 is respectively communicated with the memory 62, the detection device 63 and the output unit 64.

[0091] The detection device 63 may include at least one of a camera 631 and an acoustic wave detector 632. In the identification component 60 shown in FIG11 , the detection device 63 includes both a camera and an acoustic wave detector. The camera is used for image acquisition, and the acoustic wave detector, also known as an acoustic wave meter or acoustic wave detector, includes an acoustic wave transmitter and an acoustic wave receiver. The acoustic wave transmitter is used to transmit acoustic waves, and the acoustic wave receiver is used to receive reflected acoustic waves and record the time of reception, intensity, etc. of the reflected acoustic waves. The acoustic waves emitted by the acoustic wave transmitter may be ultrasonic or infrasonic. The output unit 64 includes at least one of a display screen and an audio output unit. The memory 62 may be used to store instructions, programs, codes, code sets, or instruction sets. The memory 62 may include a program storage area and a data storage area. The program storage area may store a material identification program that can be read, compiled, and implemented by the controller 61 to implement the material identification method; the data storage area may store data involved in the material identification method, such as a mapping relationship between various detection data and material information. For example, in one example, the data storage area of ​​the memory 62 stores a detection data-material information mapping relationship table, which reflects the corresponding relationship between material information and the detection data range. The following provides a material identification method based on the identification component 60 provided in Figure 11, see Figure 12:

[0092] S1202: Control the detection device to perform detection and obtain current detection data.

[0093] The controller 61 controls the detection device 63 to perform detection and obtain current detection data, for example, controlling a camera to collect image data, and controlling an acoustic wave detector to perform acoustic wave detection and obtain acoustic wave detection data.

[0094] S1206: Determine the material information of the target material corresponding to the current detection data according to the pre-stored mapping relationship between the multiple detection data and the material information.

[0095] The controller 61 queries the mapping relationship stored in the memory 62 based on the current detection data and determines the material information corresponding to the current detection data as the material information of the target material. In this embodiment, the material information includes at least one of material, hardness, and humidity. In one example, the controller 61 can determine the material, hardness, and humidity of the target material based on the current detection data.

[0096] S1206: Control the output unit to output material information of the target material.

[0097] After determining the material information of the target material, the controller 61 controls the output unit 64 to output the material detection result. If the output unit includes a display screen, the controller 61 can control the display screen to display the material information of the target material. In other examples of this embodiment, the output unit 64 can include an audio output unit. In this case, the controller 61 can control the audio output unit, such as a speaker, to broadcast the material information of the target material by voice. In some examples, the output unit 64 includes both a display screen and an audio output unit. The user can set how to output the detection result, or the detection result can be output in two separate ways, such as displaying and broadcasting the result by voice at the same time.

[0098] In some examples of this embodiment, the identification component 60 can be disposed on the motor 10 of the power tool 30 or on the working handle 20 thereof. In some examples, it can be disposed at the front end of the working handle 20, i.e., the end of the working handle 20 that mates with the working head. The camera and acoustic wave detector in the detection device 63 are at least partially exposed, the display surface of the display screen in the output unit 64 is exposed, and the controller 61 and memory 62 can be disposed within the working handle 20.

[0099] In order to control the start and stop, operating mode, etc. of the power tool 30, the power tool 30 has a control motherboard, which is provided with a processor, a storage device connected to the processor, etc., and the storage device stores an operating mode control program, etc. The processor may include one or more processing cores. The processor executes or executes instructions, programs, code sets, or instruction sets stored in the memory, calls data stored in the memory, and performs various functions and processes data of the present application. The processor can be at least one of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a central processing unit (CPU), a controller, a microcontroller, and a microprocessor. It is understood that for different devices, the electronic devices used to implement the above-mentioned processor functions can also be other, and the embodiments of the present application are not specifically limited. The processor can read, compile, and execute the operating mode control program, thereby controlling the motor 10 to drive the working head 40 to operate according to the corresponding operating mode. In some examples of this embodiment, the controller 61 of the identification component 60 can be independent of the processor on the control mainboard. In other examples, the controller 61 can also be integrated with the processor on the control mainboard. Similarly, the memory 62 of the identification component 60 can be independent of the memory device on the control mainboard, or can be integrated into a whole. In this embodiment, a control switch 29 is also provided on the operating handle 20 of the power tool 30. The control switch 29 can be located on the holding handle 22 or on the transmission gear box 21. It is understood that the control switch 29 is electrically connected to the control mainboard. The user can use the control switch to start the power tool 30 to operate, or can control the power tool 30 to stop working.

[0100] The present invention provides a computer-readable storage medium, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, among other media capable of storing program code. The computer-readable storage medium stores a computer program capable of being loaded by a processor and executing the material identification method of the above-described embodiment.

[0101] The above embodiments are merely a detailed introduction to the technical solutions of the present application. However, the description of the above embodiments is only intended to help understand the method and core concept of the present application and should not be construed as limiting the present application. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application.

Claims

1. A motor, characterized in that: The motor comprises a motor body, and a motor shaft having one end connected to the inside of the motor body and the other end extending out of the motor body; The first cross section of the motor shaft perpendicular to its axial direction is non-circular, and the shape and size of the first cross section match the shape and size of the second cross section of the shaft assembly hole in the working handle, the second cross section is perpendicular to the depth direction of the shaft assembly hole, and the shaft assembly hole allows the motor shaft to extend into the transmission gear box of the working handle for assembly; The motor body is provided with a handle connection structure, and the handle connection structure is configured to cooperate with the motor connection structure on the working handle to achieve detachable assembly of the motor on the working handle.

2. The motor according to claim 1, characterized in that The first cross section satisfies at least one of the following conditions: The first cross section is a polygon; The first cross section is any one of a quadrilateral and a D-shape, and the outline of the D-shape is formed by connecting a line segment and a curve end to end; At least part of each vertex of the first cross section is a rounded corner.

3. The motor according to claim 1, characterized in that The motor body has a first assembly end, the motor shaft extends from an end surface of the first assembly end, the first assembly end is configured to cooperate with the second assembly end of the operating handle, and the orifice of the shaft assembly hole is opened on the end surface of the second assembly end; The handle connection structure includes a first connection member disposed at the first assembly end, the first connection member is configured to cooperate with a second connection member in the motor connection structure, and the second connection member is disposed at the second assembly end; the cooperation between the first connection member and the second connection member includes at least one of the following: One of the first connecting member and the second connecting member includes an assembly boss, and the other includes an assembly groove matched with the assembly boss; a plurality of buckling members are provided on the side of the assembly boss, and an elastic buckling ring is arranged around the inner side wall of the assembly groove; when the motor is assembled, the assembly boss extends into the assembly groove, and the elastic buckling ring is clamped on the buckling member; when the motor is disassembled, the elastic buckling ring is deformed by force, so that the buckling member can be withdrawn and separated from the elastic buckling ring; One of the first connecting member and the second connecting member includes a variable buckle, and the other includes a limiting slot; the variable buckle includes a main body sheet and a buckle limiting member fixed to the main body sheet; when the motor is assembled, the buckle limiting member is configured to extend into the limiting slot and engage with the limiting slot; when the motor is disassembled, the main body sheet is deformed under force, driving the buckle limiting member to move out of the limiting slot.

4. The motor according to any one of claims 1 to 3, characterized in that: The motor body is also provided with a power receiving connection structure, which is configured to be electrically connected to the power supply connection structure on the working handle when the motor is assembled, so that the working handle can supply power to the motor.

5. An operating handle of an electric tool, characterized in that: The operating handle comprises a transmission gear box and a holding handle, and the holding handle is fixedly connected to the transmission gear box; The end of the transmission gear box that cooperates with the working head of the electric tool is the front end, and the end that cooperates with the motor is the rear end, the front end is provided with a working head connector, and the working head connector is configured to connect the working head; the rear end is provided with a shaft assembly hole that cooperates with the motor shaft on the motor, the second cross-section of the shaft assembly hole is non-circular, and the shape and size of the second cross-section match the shape and size of the first cross-section of the motor shaft, the first cross-section is perpendicular to the axial direction of the motor shaft, and the second cross-section is perpendicular to the depth direction of the shaft assembly hole, and the shaft assembly hole allows the motor shaft to extend into the transmission gear box for assembly; The rear end is also provided with a motor connection structure, which is configured to be connected to the handle on the motor. The connecting structures cooperate with each other to achieve detachable assembly of the motor on the operating handle.

6. The working handle according to claim 5, characterized in that: The rear end is a second assembly end of the operating handle, and the second assembly end is configured to cooperate with the first assembly end of the motor; The motor connection structure includes a second connection member disposed at the second assembly end, the second connection member is configured to cooperate with a first connection member in the handle connection structure, the first connection member is disposed at the first assembly end; the cooperation between the first connection member and the second connection member includes at least one of the following: One of the first connecting member and the second connecting member includes an assembly boss, and the other includes an assembly groove matched with the assembly boss; a plurality of buckling members are provided on the side of the assembly boss, and an elastic buckling ring is arranged around the inner side wall of the assembly groove; when the motor is assembled, the assembly boss extends into the assembly groove, and the elastic buckling ring is clamped on the buckling member; when the motor is disassembled, the elastic buckling ring is deformed by force, so that the buckling member can be withdrawn and separated from the elastic buckling ring; One of the first connecting member and the second connecting member includes a variable buckle, and the other includes a limiting slot; the variable buckle includes a main body sheet and a buckle limiting member fixed to the main body sheet; when the motor is assembled, the buckle limiting member is configured to extend into the limiting slot and engage with the limiting slot; when the motor is disassembled, the main body sheet is deformed under force, driving the buckle limiting member to move out of the limiting slot.

7. The working handle according to claim 5 or 6, characterized in that: The operating handle is also provided with a feeding connection structure and a power supply connection structure electrically connected to the feeding connection structure. The feeding connection structure is configured to be electrically connected to the output end of the power supply. The power supply connection structure is configured to be electrically connected to the power receiving connection structure on the motor when the motor is assembled to supply power to the motor.

8. The working handle according to claim 7, characterized in that: The operating handle is also provided with a battery fixing structure, and the battery fixing structure is configured to cooperate with the handle fixing structure on the battery assembly to realize the detachable assembly of the battery assembly on the operating handle; the feed connection structure is configured to be electrically connected to the output end of the battery assembly when the battery assembly is assembled; One of the battery fixing structure and the handle fixing structure includes a slide groove, and the other includes a convex slide bar that cooperates with the slide groove; one of the battery fixing structure and the handle fixing structure also includes an elastic insertion buckle, and the other also includes an insertion groove that cooperates with the elastic insertion buckle; in the battery assembled state, the convex slide bar slides into the end surface of the first end of the slide groove, and slides along the slide groove to the second end, and the elastic insertion buckle is inserted into the insertion groove; in the battery disassembled state, the elastic insertion buckle is forced to exit the insertion groove, and the convex slide bar slides from the second end of the slide groove to the first end, and slides out from the end surface of the first end.

9. An electric tool, characterized in that: It comprises the motor according to any one of claims 1 to 4 and the working handle according to any one of claims 5 to 8, wherein the motor is detachably connected to the working handle.

10. The electric tool according to claim 9, characterized in that: The electric tool also includes an identification component, which includes a controller, a memory, a detection device and an output unit, the detection device and the output unit, and the memory are respectively connected to the controller for communication; the detection device includes at least one of a camera and an acoustic wave detector, which is configured to detect the target material to be worked on under the control of the controller; the memory stores a mapping relationship between multiple detection data and material information; the controller is configured to determine the material information of the target material based on the detection data of the detection device combined with the mapping relationship stored in the memory; the output unit is configured to output the material information of the target material under the control of the controller.

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