Auxiliary handle device for electric tool and electric tool

Abstract

The embodiment of the utility model relates to an auxiliary handle device for an electric tool and the electric tool. The auxiliary handle device comprises a handle piece, a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are movably connected to one end of the handle piece, and the first clamping piece and the second clamping piece are close to or away from each other under the action of the handle piece. The first clamping piece and the second clamping piece surround the two sides of the main shell respectively and abut against the surfaces of the first shell and the second shell. According to the auxiliary handle device, in the process that the first shell and the second shell are stressed at the same time, the first shell generates large deformation quantity to bear large external force, so that the second shell generates small deformation quantity, and damage to the plastic second shell in the working process of the electric tool is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electric tools, and in particular to an auxiliary handle device for an electric tool and the electric tool. Background Art

[0002] At present, high-torque power tools (such as electric drills) are often equipped with auxiliary handles to ensure the stability and safety of the power tool during operation. The auxiliary handle is usually connected to the housing of the power tool by clamping. In order to ensure the clamping stability between the auxiliary handle and the power tool housing, the auxiliary handle is generally clamped on the aluminum reduction gearbox housing.

[0003] The width of the aluminum gearbox housing is too narrow to meet the clamping effect between the auxiliary handle and the power tool housing. If the width of the gearbox housing is increased, the overall length of the power tool will be longer. If the auxiliary handle is clamped directly on the plastic housing of the power tool, there may be a risk of damaging the plastic housing. Utility Model Content

[0004] In view of this, the embodiments of the present application provide an auxiliary handle device for an electric tool and an electric tool to solve at least one problem existing in the background technology.

[0005] In a first aspect, an embodiment of the present application provides an auxiliary handle device for an electric tool, the electric tool comprising a main housing, the main housing comprising a first housing made of metal and a second housing made of plastic, the first housing being connected to the second housing, and the axis direction of the main housing being parallel to the axis direction of the working head of the electric tool;

[0006] The auxiliary handle device comprises a handle member, a first clamping member and a second clamping member, wherein the first clamping member and the second clamping member are movably connected to one end of the handle member, and the first clamping member and the second clamping member are moved closer or farther away under the action of the handle member. When the auxiliary handle device is in use, the first clamping member and the second clamping member surround and abut against the surfaces of the first shell and the second shell from both sides of the main shell respectively.

[0007] Wherein, the first clamping member and the second clamping member are both provided with a first abutting surface and a second abutting surface on their inner walls, and when the auxiliary handle device is sleeved on the main shell, the first abutting surface and the second abutting surface correspond to the first shell and the second shell respectively;

[0008] In the first stage state where the handle member tightens the first clamping member and the second clamping member sleeved on the main shell, the first abutting surface contacts the first shell surface, and there is a gap between the second abutting surface and the second shell surface;

[0009] In the second stage state where the handle member tightens the first clamping member and the second clamping member sleeved on the main shell, the first abutting surface and the second abutting surface abut against the first shell surface and the second shell surface respectively.

[0010] In combination with the first aspect of the present application, in an optional implementation, when the first shell surface is coplanar with the second shell surface, the first abutting surface protrudes from the second abutting surface.

[0011] In combination with the first aspect of the present application, in an optional implementation, when the second shell surface protrudes from the first shell surface, the first abutting surface protrudes from the second abutting surface.

[0012] In combination with the first aspect of the present application, in an optional embodiment, in the first stage state and the second stage state, the first clamping member and the second clamping member are clamped in the circumferential direction of the main shell body, and the axis of the handle member is perpendicular to the axis of the main shell body.

[0013] In combination with the first aspect of the present application, in an optional embodiment, the handle member includes a handle rod and a gripping handle for an operator to grip, and the handle rod is connected to the gripping handle;

[0014] Wherein, the handle rod comprises a first rod and a second rod, the second rod is connected between the first rod and the grip handle, and the diameter of the second rod is greater than the diameter of the first rod;

[0015] The first clamping member and the second clamping member are sleeved on the first rod, the second clamping member is close to the second rod, and in the second stage state, the second rod abuts against the second clamping member.

[0016] In combination with the first aspect of the present application, in an optional implementation manner, the first clamping member and the second clamping member are respectively provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole both match the first rod, and an inner wall of the first mounting hole is provided with an internal thread;

[0017] The end surface of the first rod is provided with an external thread matching the internal thread, and the holding handle adjusts the relative position of the first rod and the first mounting hole to adjust the distance between the first clamping member and the second clamping member.

[0018] In combination with the first aspect of the present application, in an optional implementation manner, the first clamping member and the second clamping member are respectively provided with a first limiting hole and a second limiting hole, and the axis of the first limiting hole is collinear with the axis of the second limiting hole and is parallel to the axis of the handle member;

[0019] The auxiliary handle device further comprises a limiting member, one end of which is fixedly inserted in the second limiting hole, and the other end of which is movably inserted in the first limiting hole.

[0020] In combination with the first aspect of the present application, in an optional implementation manner, the first shell and the second shell have a first mounting protrusion and a second mounting protrusion respectively, and the first mounting protrusion is connected to the second mounting protrusion;

[0021] A first mounting groove is provided on one side of the first clamping member and the second clamping member for contacting the main housing, the first mounting groove matches the first mounting protrusion and the second mounting protrusion at the same time, and the first abutting surface and the second abutting surface are located in the first mounting groove;

[0022] In the second stage state, the first abutting surface and the second abutting surface abut against the first mounting protrusion and the second mounting protrusion surface respectively.

[0023] In combination with the first aspect of the present application, in an optional implementation, the first abutting surface and the second abutting surface both extend from one end of the first clamping member or the second clamping member to the other end.

[0024] In a second aspect, an embodiment of the present application provides an electric tool, comprising an auxiliary handle device for the electric tool provided according to any embodiment of the first aspect.

[0025] The auxiliary handle device for an electric tool provided in an embodiment of the present application is provided with a first abutting surface and a second abutting surface on the inner walls of the first clamping member and the second clamping member, so that in the first stage state when the handle member tightens the first clamping member and the second clamping member sleeved on the main shell, the first abutting surface contacts the surface of the first shell, and there is a gap between the second abutting surface and the surface of the second shell. In this way, when the first shell and the second shell are subjected to force at the same time, the first shell undergoes a larger deformation amount and bears a larger external force, while the second shell undergoes a smaller deformation amount, thereby reducing the damage to the second shell made of plastic during the operation of the electric tool.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 A schematic diagram of the structure of the electric tool provided in the embodiment of the present application;

[0029] Figure 2 A schematic diagram of the overall structure of an auxiliary handle device for an electric tool provided in an embodiment of the present application;

[0030] Figure 3 A schematic structural diagram of a first clamping member and a second clamping member in an auxiliary handle device for an electric tool provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of the state of the auxiliary handle device for an electric tool provided in an embodiment of the present application being installed on the electric tool (a first stage state and a second stage state);

[0032] Figure 5 This is a schematic diagram of the overall structure of an auxiliary handle device for an electric tool provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] 10. Main housing; 11. First housing; 110. First mounting protrusion; 12. Second housing; 120. Second mounting protrusion;

[0035] 20. Auxiliary handle device; 21. Handle member; 211. Handle rod; 2111. First rod; 2112. Second rod; 211a. External thread; 212. Holding handle; 22. First clamping member; 2a. First abutting surface; 2b. Second abutting surface; 2c. First mounting groove; 221. First mounting hole; 221a. Internal thread; 222. First limiting hole;

[0036] 23. Second clamping member; 231. Second mounting hole; 232. Second limiting hole;

[0037] 30. Limiting member; 40. Handle housing. DETAILED DESCRIPTION

[0038] The exemplary embodiments disclosed in the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the specific embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope disclosed in the present application to those skilled in the art.

[0039] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features known in the art are not described; that is, all features of the actual embodiments are not described here, and well-known functions and structures are not described in detail.

[0040] In the drawings, the sizes of layers, regions, elements and their relative sizes may be exaggerated for clarity. Like reference numerals denote like elements throughout.

[0041] It should be understood that when an element or layer is referred to as "on ...", "adjacent to ...", "connected to" or "coupled to" other elements or layers, it can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element or layer. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part. And when the second element, component, region, layer or part is discussed, it does not indicate that the present application necessarily has the first element, component, region, layer or part.

[0042] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used here for convenience of description to describe the relationship between an element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, the spatial relationship terms are intended to also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is turned over, then the elements or features described as "under other elements" or "under it" or "under it" will be oriented as "on" other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0043] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0044] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other implementation methods.

[0045] The electric tools in the prior art (such as electric drills) usually adopt a structure that combines a metal shell with a plastic shell to ensure lightweight while ensuring structural strength. High-torque electric tools are often equipped with auxiliary handles to ensure stability and safety during the operation of the electric tools. The metal shell (such as an aluminum shell) is narrow in width and cannot meet the clamping effect between the auxiliary handle and the power tool housing. If the width of the metal shell is increased, the overall length of the power tool will be longer. If the auxiliary handle is clamped directly on the plastic shell of the power tool, there may be a risk of damaging the plastic shell.

[0046] In response to the above technical problems, an embodiment of the present application provides an auxiliary handle device for an electric tool, which utilizes a first clamping member and a second clamping member to simultaneously clamp a first shell made of metal and a second shell made of plastic, and a first abutting surface and a second abutting surface are provided on the inner walls of the first clamping member and the second clamping member, so that in the first stage state when the handle member tightens the first clamping member and the second clamping member sleeved on the main shell, the first abutting surface contacts the surface of the first shell, and there is a gap between the second abutting surface and the surface of the second shell. In this way, when the first shell and the second shell are subjected to force at the same time, the first shell undergoes a larger deformation and bears a larger external force while the second shell undergoes a smaller deformation, thereby reducing the possibility of the second shell made of plastic being damaged during the operation of the electric tool.

[0047] The auxiliary handle device for a power tool provided in an embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0048] Figure 1The electric tool comprises a main housing 10, the main housing 10 comprises a first housing 11 made of metal and a second housing 12 made of plastic, the first housing 11 is connected to the second housing 12, and the axial direction of the main housing 10 is Figure 1 The arrow s1 direction is parallel to the axis direction of the working head (not shown in the figure) of the electric tool. The electric tool further comprises a handle housing 40 , which is connected to the main housing 10 .

[0049] like Figure 2 and Figure 3 As shown, the auxiliary handle device 20 includes a handle member 21, a first clamping member 22 and a second clamping member 23. The first clamping member 22 and the second clamping member 23 are movably connected to one end of the handle member 21. The first clamping member 22 and the second clamping member 23 are moved closer or farther away under the action of the handle member 21 to achieve clamping and loosening of the main housing 10. When the auxiliary handle device 20 is in use, the first clamping member 22 and the second clamping member 23 surround and abut against the surfaces of the first housing 11 and the second housing 12 from both sides of the main housing 10, respectively.

[0050] The first clamping member 22 and the second clamping member 23 are both provided with a first abutting surface 2a and a second abutting surface 2b on their inner walls. When the handle member 21 is sleeved on the main housing 10, the first abutting surface 21 corresponds to the first housing 11, and the second abutting surface 2b corresponds to the second housing 12. In the first stage when the handle member 21 tightens the first clamping member 22 and the second clamping member 23 sleeved on the main housing 10, the first abutting surface 2a contacts the surface of the first housing 11, and there is a gap between the second abutting surface 2b and the surface of the second housing 12.

[0051] The first stage state can be understood as: the handle member 21 has been sleeved on the main shell 10, and is in the initial stage of tightening the first clamping member 22 and the second clamping member 23 using the handle member 21, that is, when the first clamping member 22 and the second clamping member 23 just begin to contact the surface of the main shell 10.

[0052] When the handle 21 is used to continue tightening the first clamp 22 and the second clamp 23, the second stage state is entered, that is, the first abutting surface 2a and the second abutting surface 2b are respectively abutted against the surface of the first shell 11 and the surface of the second shell 12. In the second stage state, the operator uses the auxiliary handle device 20 for assistance to ensure the stability and safety of operating the power tool.

[0053] In the embodiment of the present application, when the first shell 11 made of metal and the second shell 12 made of plastic are subjected to external force at the same time, based on the first stage state, the first abutting surface 2a is in contact with the surface of the first shell 11, while there is a gap between the second abutting surface 2b and the surface of the second shell 12. Therefore, the first shell 11 produces a larger deformation amount, thereby causing the second shell 12 to undergo a smaller deformation amount, thereby reducing the risk of damage to the second shell 12.

[0054] In an optional embodiment, when the surface of the first shell 11 is coplanar with the surface of the second shell 12, the first abutting surface 2a protrudes from the second abutting surface 2b. In this way, in the first stage, the first abutting surface 2a contacts the surface of the first shell 11 while a gap exists between the second abutting surface 2b and the surface of the second shell 12.

[0055] In an optional embodiment, when the surface of the second shell 12 protrudes from the surface of the first shell 11, the first abutting surface 2a protrudes from the second abutting surface 2b. In the embodiment of the present application, in the first stage state, the first abutting surface 2a contacts the surface of the first shell 11 while a gap exists between the second abutting surface 2b and the surface of the second shell 12.

[0056] In an optional embodiment, when the surface of the first shell 11 protrudes from the surface of the second shell 12, the positional relationship between the first abutting surface 2a and the second abutting surface 2b is set based on the height of the first shell 11 protruding from the surface of the second shell 12. The embodiment of the present application does not make specific limitations, but of course it needs to be satisfied that in the first stage state, the first abutting surface 2a contacts the surface of the first shell 11 while there is a gap between the second abutting surface 2b and the surface of the second shell 12.

[0057] It should be noted that the height of the first abutting surface 2a protruding from the second abutting surface 2b, or the height of the second abutting surface 2b protruding from the first abutting surface 2a, needs to be set as needed based on the positional relationship between the first shell 11 and the second shell 12 in the power tool, and the specific materials of the first shell 11 and the second shell 12. The embodiment of the present application does not make specific settings.

[0058] In an alternative embodiment, if Figure 2 and Figure 4 As shown, in the first stage state and the second stage state, the first clamping member 22 and the second clamping member 23 are clamped in the circumferential direction of the main housing 10, and the axis of the handle member 21 is perpendicular to the axis of the main housing 10. Figure 4 The direction of arrow s2 is shown.

[0059] When the auxiliary handle device 20 is used to assist the operator in operating the power tool, the axis of the handle member 21 is perpendicular to the axis of the main housing 10, so that the auxiliary handle device 20 can share more of the force on the power tool handle housing 40, ensuring the stability and safety of the operator in using the power tool.

[0060] In an alternative embodiment, if Figure 2 and Figure 5 As shown, the handle member 21 includes a handle rod 211 and a gripping handle 212 for an operator to grip. The handle rod 211 is connected to the gripping handle 212. The length of the handle rod 211 is set according to usage requirements and is not limited in the embodiment of the present application.

[0061] The handle bar 211 includes a first bar 2111 and a second bar 2112 . The second bar 2112 is connected between the first bar 2111 and the gripping handle 212 . The diameter of the second bar 2112 is greater than that of the first bar 2111 .

[0062] The first clamping member 22 and the second clamping member 23 are sleeved on the first rod 2111 , and the second clamping member 23 is close to the second rod 2112 . In the second stage state, the second rod 2112 abuts against the second clamping member 23 .

[0063] When the handle member 21 is used to tighten the first clamping member 22 and the second clamping member 23 which are sleeved on the first rod 2111, the second clamping member 23 abuts against the end of the second rod 2112 close to the first rod 2111, and the first clamping member 22 approaches the second clamping member 23, so that the first clamping member 22 and the second clamping member 23 are clamped on the surfaces of the first shell 11 and the second shell 12.

[0064] In an alternative embodiment, if Figure 2 and Figure 5 As shown, the first clamping member 22 and the second clamping member 23 are respectively provided with a first mounting hole 221 and a second mounting hole 231 , the first mounting hole 221 and the second mounting hole 231 are matched with the first rod 2111 , and the inner wall of the first mounting hole 221 is provided with an internal thread 221 a .

[0065] The end surface of the first rod 2111 is provided with an external thread 211a matching the internal thread 221a. The gripping handle 212 adjusts the relative position of the first rod 2111 and the first mounting hole 221 to adjust the distance between the first clamping member 22 and the second clamping member 23.

[0066] The operator rotates the gripping handle 212 to drive the second rod 2112 to rotate together with the first rod 2111, adjusts the relative position between the first rod 2111 and the first mounting hole 221, and further adjusts the distance between the first clamping member 22 and the second clamping member 23. By providing an external thread 211a at the end of the first rod 2111 and an internal thread 221a matching the external thread 211a in the first mounting hole 221, the first clamping member 22 and the second clamping member 23 can be tightened or loosened by rotating the gripping handle 212, and the adjustment is convenient and quick.

[0067] In an optional embodiment, the first clamping member 22 and the second clamping member 23 are respectively provided with a first limiting hole 222 and a second limiting hole 232 , and the axis of the first limiting hole 222 is colinear with the axis of the second limiting hole 232 and is parallel to the axis of the handle member 21 .

[0068] The auxiliary handle device 20 further includes a limiting member 30 , one end of which is fixedly inserted into the second limiting hole 232 , and the other end of which is movably inserted into the first limiting hole 222 .

[0069] By inserting the limiting member 30 into the first limiting hole 222 and the second limiting hole 232 , the limiting member 30 can limit the first clamping member 22 from rotating alone in the circumferential direction during the tightening process of the handle member 21 , thereby improving the tightening and loosening efficiency of the auxiliary handle device 20 .

[0070] In an alternative embodiment, if Figure 1 and Figure 5 As shown, the first housing 11 and the second housing 12 have a first mounting protrusion 110 and a second mounting protrusion 120, respectively, and the first mounting protrusion 110 is connected to the second mounting protrusion 120. As an example, the first mounting protrusion 110 and the second mounting protrusion 120 are screw columns, and the first housing 11 and the second housing 12 are inserted into the screw columns by screws to connect the first housing 11 and the second housing 12. Of course, the first mounting protrusion 110 and the second mounting protrusion 120 can also be other types of protrusions.

[0071] The first clamping member 22 and the second clamping member 23 are both provided with a first mounting groove 2c on one side for contacting the main shell 10. The first mounting groove 2c matches the first mounting protrusion 110 and the second mounting protrusion 120 at the same time, and the first abutting surface 2a and the second abutting surface 2b are located in the first mounting groove 2c.

[0072] In the second stage state, the first abutting surface 2 a and the second abutting surface 2 b abut against the surfaces of the first mounting protrusion 110 and the second mounting protrusion 120 respectively.

[0073] By matching the first mounting protrusion 110 and the second mounting protrusion 120 with the first mounting groove 2c on the first clamping member 22 and the second clamping member 23, the clamping effect of the first clamping member 22 and the second clamping member 23 can be improved, further ensuring the stability and safety of the power tool during operation.

[0074] The first housing 11 and the second housing 12 are respectively provided with a plurality of first mounting protrusions 110 and second mounting protrusions 120 along the circumference of the main housing 10, and the first mounting protrusions 110 and the second mounting protrusions 120 are located opposite to each other. The number of the first mounting grooves 2c corresponds to the number of the first mounting protrusions 110 or the second mounting protrusions 120, and the specific number of the first mounting grooves 2c is set according to the structure of the electric tool, and is not specifically limited in the embodiment of the present application.

[0075] like Figure 5 As shown, in fact, the outer wall structure of the main housing 10 of the electric tool is complex, and the first abutting surface 2a and the second abutting surface 2b are only provided on the inner walls of the first clamping member 22 and the second clamping member 23 corresponding to the first mounting groove 2c, which can greatly reduce the manufacturing requirements of the auxiliary handle device 20 and can meet the auxiliary function of the auxiliary handle device 20 on the electric tool. It can be understood that there is a gap between the inner walls of the first clamping member 22 and the second clamping member 23 between adjacent first mounting grooves 2c and the main housing 10, and during the operation of the electric tool, only the first mounting protrusion 110 and the second mounting protrusion 120 are subjected to force.

[0076] As an alternative, Figure 3 As shown, the first abutting surface 2a and the second abutting surface 2b both extend from one end of the first clamping member 22 or the second clamping member 23 to the other end.

[0077] That is to say, not only are the first mounting groove 2c provided with the first abutting surface 2a and the second abutting surface 2b, but the inner walls of the first clamping member 22 and the second clamping member 23 between adjacent first mounting grooves 2c are also provided with the first abutting surface 2a and the second abutting surface 2b. This can improve the clamping effect between the auxiliary handle device 20 and the main shell 10, and further ensure the stability and safety of the electric tool when using the auxiliary handle device 20 for assistance.

[0078] The present application also provides an electric tool, including the auxiliary handle device 20 for the electric tool provided in any of the above embodiments. The auxiliary handle device 20 can ensure the clamping effect between the auxiliary handle device 20 and the main housing 10 of the electric tool, further ensuring the stability and safety of the electric tool during operation.

[0079] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present application that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present application and do not limit the scope of protection of the patent of this application.

Claims

1. An auxiliary handle device for an electric tool, characterized in that: The electric tool comprises a main housing, the main housing comprises a first housing made of metal and a second housing made of plastic, the first housing is connected to the second housing, and the axis direction of the main housing is parallel to the axis direction of the working head of the electric tool; The auxiliary handle device comprises a handle member, a first clamping member and a second clamping member, wherein the first clamping member and the second clamping member are movably connected to one end of the handle member, and the first clamping member and the second clamping member are moved closer or farther away under the action of the handle member. When the auxiliary handle device is in use, the first clamping member and the second clamping member surround and abut against the surfaces of the first shell and the second shell from both sides of the main shell respectively. Wherein, the first clamping member and the second clamping member are both provided with a first abutting surface and a second abutting surface on their inner walls, and when the auxiliary handle device is sleeved on the main shell, the first abutting surface and the second abutting surface correspond to the first shell and the second shell respectively; In the first stage state where the handle member tightens the first clamping member and the second clamping member sleeved on the main shell, the first abutting surface contacts the first shell surface, and there is a gap between the second abutting surface and the second shell surface; In the second stage state where the handle member tightens the first clamping member and the second clamping member sleeved on the main shell, the first abutting surface and the second abutting surface abut against the first shell surface and the second shell surface respectively.

2. The auxiliary handle device for an electric tool according to claim 1, characterized in that: When the first shell surface is coplanar with the second shell surface, the first abutting surface protrudes from the second abutting surface.

3. The auxiliary handle device for an electric tool according to claim 1, characterized in that: When the second shell surface protrudes from the first shell surface, the first abutting surface protrudes from the second abutting surface.

4. The auxiliary handle device for an electric tool according to claim 1, characterized in that: In the first stage state and the second stage state, the first clamping member and the second clamping member are clamped in the circumferential direction of the main housing, and the axis of the handle member is perpendicular to the axis of the main housing.

5. The auxiliary handle device for an electric tool according to claim 4, characterized in that: The handle member comprises a handle rod and a gripping handle for an operator to grip, wherein the handle rod is connected to the gripping handle; Wherein, the handle rod comprises a first rod and a second rod, the second rod is connected between the first rod and the grip handle, and the diameter of the second rod is greater than the diameter of the first rod; The first clamping member and the second clamping member are sleeved on the first rod, the second clamping member is close to the second rod, and in the second stage state, the second rod abuts against the second clamping member.

6. The auxiliary handle device for an electric tool according to claim 5, characterized in that: The first clamping member and the second clamping member are respectively provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole both match the first rod, and the inner wall of the first mounting hole is provided with an internal thread; The end surface of the first rod is provided with an external thread matching the internal thread, and the holding handle adjusts the relative position of the first rod and the first mounting hole to adjust the distance between the first clamping member and the second clamping member.

7. The auxiliary handle device for an electric tool according to claim 1, characterized in that: The first clamping member and the second clamping member are respectively provided with a first limiting hole and a second limiting hole, and the axis of the first limiting hole is collinear with the axis of the second limiting hole and is parallel to the axis of the handle member; The auxiliary handle device further comprises a limiting member, one end of which is fixedly inserted in the second limiting hole, and the other end of which is movably inserted in the first limiting hole.

8. The auxiliary handle device for an electric tool according to claim 1, characterized in that: The first shell and the second shell have a first mounting protrusion and a second mounting protrusion respectively, and the first mounting protrusion is connected to the second mounting protrusion; A first mounting groove is provided on one side of the first clamping member and the second clamping member for contacting the main housing, the first mounting groove matches the first mounting protrusion and the second mounting protrusion at the same time, and the first abutting surface and the second abutting surface are located in the first mounting groove; In the second stage state, the first abutting surface and the second abutting surface abut against the first mounting protrusion and the second mounting protrusion surface respectively.

9. The auxiliary handle device for an electric tool according to claim 1, characterized in that: The first abutting surface and the second abutting surface both extend from one end to the other end of the first clamping member or the second clamping member.

10. An electric tool, characterized in that: The invention comprises an auxiliary handle device for an electric tool as claimed in any one of claims 1 to 9.

Images