A striking tool
By designing the snap connection between the buckle part and the buckle part in the strike tool, and using the pressing part of the movable part to drive the disconnection, the problem of existing strike tools requiring additional tools to remove the magazine is solved, and the effect of quickly removing and cleaning the staple is achieved.
Patent Information
- Application Number
- CN202421488117.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-26
AI Technical Summary
Existing hitting tools require additional tools to remove the magazine, making it inconvenient to clean the nails.
A strike tool is designed, and the magazine is locked by the snap connection between the buckle part and the buckle part, and the buckle part is driven to disengage the buckle part from the buckle part through the pressing part of the movable part, thereby achieving rapid removal of the magazine.
It enables quick cleaning of staples without additional tools, simplifying the removal process of magazines.
Smart Images

Figure CN222741376U_ABST
Abstract
Description
Technical Field
[0001] The embodiment of the utility model relates to the technical field of building construction, and in particular to a striking tool. Background Art
[0002] Nail guns and other striking tools for striking fasteners are widely used in the construction, decoration and other industries. Their working principle is: press the gun nozzle down and press the switch, the motor is started, and the firing pin is driven from the initial locked ready position through the lifting mechanism to drive the piston to compress the air. After the firing pin is disengaged from the lifting mechanism, it is suddenly released to strike the row of nails in the nail magazine that are pushed into the nail seat by the nail pusher, causing them to shoot out from the gun nozzle.
[0003] In the past, most of the magazines for storing nails in nail guns have a front end connected to the gun head and a rear end fixedly connected to the housing through a connecting seat. When a nail is stuck in the magazine, an additional tool is required to remove the magazine, which makes it inconvenient to clean the stuck nail. Utility Model Content
[0004] The purpose of the embodiment of the utility model is to provide a striking tool, aiming to solve the problem that the existing striking tools need additional tools to remove the magazine, which makes it inconvenient to clean the magazine staples.
[0005] In order to solve the above technical problems, the embodiment of the utility model provides a striking tool, comprising:
[0006] A tool body, wherein the tool body is provided with a plug-in slot, and a mounting hole is provided through the slot side wall of the plug-in slot;
[0007] A movable member, the movable member can be slidably arranged at the mounting hole along the extending direction of the mounting hole, the movable member is provided with a pressing portion and a buckling portion, the pressing portion is located at the mounting hole, so that the movable member can be driven to slide by the pressing portion, and the buckling portion is located in the plug-in slot;
[0008] A clip, wherein the clip is provided with an inserting portion, the inserting portion is used to be inserted into the inserting slot, and the inserting portion is provided with a clamping portion;
[0009] Wherein, when the clip is in a locked state, the movable member is located at the first position, and the buckling portion is buckled with the clamping portion to restrict the plug-in portion from being disengaged from the plug-in slot from the notch of the plug-in slot;
[0010] When the clip is in a released state, the movable member is located at the second position, and the buckling portion is disengaged from the clamping portion, so that the plug-in portion can be disengaged from the plug-in slot through the notch of the plug-in slot.
[0011] Preferably, when the movable member is located at the first position, one end of the pressing portion away from the interior of the plug-in slot extends out of the mounting hole.
[0012] Preferably, the movable part comprises:
[0013] A button, the button is extended along the sliding direction of the movable member, and the button forms the pressing portion;
[0014] A fastener is provided extending along the depth direction of the insertion slot, one end of the fastener is connected to an end of the button close to the inside of the insertion slot, and the fastening portion is provided at an end of the fastener away from the button.
[0015] Preferably, a mounting column extending along the sliding direction of the movable part is provided at one end of the fastener away from the buckling part, and the end of the mounting column close to the button extends from the plug-in slot into the mounting hole, and the button is connected to one end of the mounting column located in the mounting hole.
[0016] Preferably, a positioning groove is provided on the end surface of the button close to the mounting column, and one end of the mounting column close to the button extends into the positioning groove; the button and one end of the mounting column located in the mounting hole are fixedly connected by a screw connection.
[0017] Preferably, an abutment limit surface facing the button is provided on the inner hole wall of the mounting hole, a return spring is provided in the mounting hole, the return spring is sleeved on the outside of the mounting column, and the two ends of the return spring respectively abut the abutment limit surface and the end surface of the button close to the mounting column.
[0018] Preferably, when the movable member is located at the first position, one end of the fastener away from the buckling portion abuts against an inner groove side wall of the insertion groove where the mounting hole is provided.
[0019] Preferably, a boss is protruding from the inner groove side wall of the plug-in groove, and the mounting hole is arranged on the table surface of the boss facing the fastener; when the movable part is in the first position, the end of the fastener away from the buckling part abuts against the table surface of the boss where the mounting hole is arranged.
[0020] Preferably, the buckling portion is a first buckle hook, and the clamping portion is a second buckle hook.
[0021] Preferably, an elastic reset member is provided between the movable member and the tool body, and the elastic reset member is used for slidingly reset the movable member to the first position.
[0022] Compared with the prior art, the utility model has the following beneficial effects: the magazine of the striking tool and the tool body are locked by the buckling part and the clamping part, and the magazine can be quickly removed by pressing the pressing part of the movable part to disengage the buckling part and the clamping part, so that the nails can be quickly cleaned without the help of additional tools. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0024] Figure 1 This is a schematic diagram of the structure of the striking tool in the embodiment of the utility model;
[0025] Figure 2 for Figure 1 Exploded view of the striking tool;
[0026] Figure 3 for Figure 1 One of the cross-sectional views of the movable part in the middle, wherein the magazine is in a locked state;
[0027] Figure 4 for Figure 1 A second cross-sectional view of the movable part in the middle, wherein the magazine is in a released state.
[0028] Description of the figures of the utility model:
[0029] Striking tool 100, tool body 1, plug-in slot 11, mounting hole 12, abutment limit surface 13, boss 14, movable part 2, pressing part 21, buckling part 22, first hook 22a, button 23, positioning slot 231, fastener 24, mounting column 241, screw connection 25, clip 3, plug-in part 31, clamping part 32, second hook 32a, elastic return part 4, return spring 4a.
[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0034] The utility model provides a striking tool, which can be a nail gun or other tool used to strike fasteners. The striking tool is an example of a nail gun. Figures 1 to 4 A preferred embodiment of the striking tool provided by the utility model is shown.
[0035] See also Figure 1 and Figure 2 In this embodiment, the striking tool 100 includes a tool body 1 , a movable part 2 and a clip 3 .
[0036] See also Figures 1 to 3 A plug-in slot 11 is provided on the tool body 1 , and a mounting hole 12 is penetratingly provided on the slot side wall of the plug-in slot 11 .
[0037] Specifically, the slot depth direction of the plug slot 11 is defined as the front-to-back direction, and the slot opening of the plug slot 11 is oriented forward; at the same time, the extension direction of the mounting hole 12 is defined as the up-down direction, and the end of the mounting hole 12 connected to the inside of the plug slot 11 is the lower end of the mounting hole 12. The mounting hole 12 is provided on the upper slot side wall of the plug slot 11, the upper end of the mounting hole 12 penetrates the upper outer slot side wall of the plug slot 11, and the lower end of the mounting hole 12 penetrates the upper inner slot side wall of the plug slot 11.
[0038] See also Figures 2 to 4 The movable part 2 can be slidably arranged at the mounting hole 12 along the extension direction of the mounting hole 12. A pressing portion 21 and a buckling portion 22 are arranged on the movable part 2. The pressing portion 21 is located at the mounting hole 12 to drive the movable part 2 to slide through the pressing portion 21. The buckling portion 22 is located in the plug-in slot 11.
[0039] Specifically, the movable member 2 is disposed at the mounting hole 12 of the tool body 1, and the movable member 2 can slide up and down relative to the tool body 1, so that the movable member 2 has a first position and a second position within the movable stroke. The first position is located above the second position, and the movable member 2 located at the second position can slide upward to the first position, and similarly, the movable member 2 located at the first position can also slide downward to the second position.
[0040] A portion of the movable member 2 is disposed in the mounting hole 12, and another portion of the movable member 2 is disposed in the plug slot 11. The portion of the movable member 2 located in the mounting hole 12 is provided with a pressing portion 21, and the portion of the movable member 2 located in the plug slot 11 is provided with a buckling portion 22. The pressing portion 21 is slidably disposed at the mounting hole 12, and by pressing the pressing portion 21 of the movable member 2, the movable member 2 located in the first position can be driven to slide downward to the second position.
[0041] Optionally, see Figures 2 to 4 In this embodiment, an elastic reset member 4 is provided between the movable member 2 and the tool body 1, and the elastic reset member 4 is used to slide and reset the movable member 2 to the first position.
[0042] Specifically, when the movable member 2 is located at the first position, the elastic reset member 4 is in the initial state; when the pressing portion 21 of the movable member 2 is pressed downward to drive the movable member 2 located at the first position to slide downward to the second position, the elastic reset member 4 is compressed; and after the pressing portion 21 of the movable member 2 is released, the movable member 2 located at the second position can be driven to automatically slide upward to the first position under the action of the elastic force of the elastic reset member 4. The elastic reset member 4 is arranged between the movable member 2 and the tool body 1, and the specific arrangement of the elastic reset member 4 will be further described below.
[0043] The movable part 2 may be an integrally formed part, or may be a component assembled from multiple parts. Figures 2 to 4 In this embodiment, the movable part 2 includes a button 23 and a fastener 24. The button 23 is extended along the sliding direction of the movable part 2, and the button 23 forms a pressing portion 21; the fastener 24 is extended along the groove depth direction of the plug-in slot 11, one end of the fastener 24 is connected to the end of the button 23 close to the inside of the plug-in slot 11, and the end of the fastener 24 away from the button 23 is provided with a fastening portion 22.
[0044] Specifically, the button 23 is arranged in a columnar shape extending in the vertical direction, and the shape of the button 23 is generally compatible with the shape of the mounting hole 12, for example, see Figures 2 to 4The button 23 can be cylindrical, and correspondingly, the mounting hole 12 can be a circular hole. By pressing the upper end surface of the button 23, the movable member 2 located at the first position can be driven to slide downward to the second position. The buckle 24 is extended in the front-back direction, the buckling portion 22 is arranged at the front end of the buckle 24, and the rear end of the buckle 24 is connected to the lower end of the button 23, so that the movable member 2 is arranged in an L-shape as a whole.
[0045] When installing the movable part 2 at the mounting hole 12, the button 23 and the fastener 24 can be respectively installed into the mounting hole 12 and the plug-in slot 11, and then the button 23 and the fastener 24 are assembled together to form the movable part 2. This arrangement makes it easy to install the L-shaped movable part 2 at the mounting hole 12.
[0046] For further information, see Figures 2 to 4 In this embodiment, a mounting post 241 extending along the sliding direction of the movable part 2 is provided at one end of the fastener 24 away from the snap-fit portion 22, and one end of the mounting post 241 close to the button 23 extends from the plug-in slot 11 into the mounting hole 12, and the button 23 is connected to one end of the mounting post 241 located in the mounting hole 12.
[0047] Specifically, a mounting column 241 extending in the up and down directions is provided at the rear end of the fastener 24, the lower end of the mounting column 241 is located in the plug-in slot 11, and the upper end of the mounting column 241 is located in the mounting hole 12 and at the lower side of the button 23. Through the cooperation of the mounting column 241 and the mounting hole 12, the fastener 24 can be installed and positioned in the plug-in slot 11, and the fastener 24 is connected to the button 23 through the mounting column 241. In this way, after the button 23 and the fastener 24 are respectively installed in the mounting hole 12 and the plug-in slot 11, it is convenient to connect the button 23 and the fastener 24 to assemble into the movable part 2.
[0048] For further information, see Figures 2 to 4 In this embodiment, a positioning groove 231 is provided on the end surface of the button 23 close to the mounting column 241 , and one end of the mounting column 241 close to the button 23 extends into the positioning groove 231 .
[0049] Specifically, a positioning groove 231 is provided on the lower end surface of the button 23, the upper end of the mounting column 241 extends into the positioning groove 231, the upper end surface of the mounting column 241 abuts against the bottom wall of the positioning groove 231, and the shape of the upper end of the mounting column 241 is generally compatible with the shape of the positioning groove 231. The positioning groove 231 is provided on the button 23, which can realize the installation positioning between the button 23 and the fastener 24.
[0050] The specific connection method between the button 23 and the fastener 24 can be set according to actual conditions. For example, the button 23 and the fastener 24 can be connected by a snap connection or a threaded connection. Figures 2 to 4In this embodiment, the button 23 is fixedly connected to one end of the mounting column 241 located in the mounting hole 12 via a screw connection 25 .
[0051] Specifically, a through hole extending in the up-down direction is provided on the upper end surface of the button 23, and the through hole passes through the lower end surface of the button 23, and a threaded hole is provided on the upper end surface of the mounting post 241 corresponding to the through hole. The screw connector 25 is installed at the through hole from top to bottom, and the tail of the screw connector 25 passes through the through hole and is threadedly connected with the threaded hole on the mounting post 241, so that the button 23 and the fastener 24 are fixedly connected through the screw connector 25. The through hole is usually a countersunk hole, so that the head of the screw connector 25 is located in the through hole.
[0052] As introduced above, an elastic reset member 4 is arranged between the movable member 2 and the tool body 1. Specifically, the elastic reset member 4 can be located in the plug-in slot 11, and the elastic reset member 4 is arranged between the fastener 24 and the tool body 1; or the elastic reset member 4 can be located in the mounting hole 12, and the elastic reset member 4 is arranged between the button 23 and the tool body 1.
[0053] Optionally, see Figures 2 to 4 In this embodiment, a contact limit surface 13 facing the button 23 is provided on the inner hole wall of the mounting hole 12, and an elastic reset member 4 is provided in the mounting hole 12. The elastic reset member 4 is sleeved on the outside of the mounting column 241, and the two ends of the elastic reset member 4 respectively abut against the contact limit surface 13 and the end surface of the button 23 close to the mounting column 241.
[0054] Specifically, the elastic reset member 4 may be a reset spring 4a, etc., and the following description will be made by taking the case where the elastic reset member 4 is a reset spring 4a as an example. A stepped structure is provided on the inner hole wall of the mounting hole 12, thereby forming an upward abutting limit surface 13 on the inner hole wall of the mounting hole 12, and the abutting limit surface 13 is located on the lower side of the button 23. The reset spring 4a is located in the mounting hole 12 and is sleeved outside the upper end of the mounting column 241, and the upper end and the lower end of the reset spring 4a abut against the lower end surface of the button 23 and the abutting limit surface 13, respectively.
[0055] See also Figure 1 , Figure 3 and Figure 4 The clip 3 is provided with an inserting portion 31, which is used to be inserted into the inserting slot 11, and the inserting portion 31 is provided with a clamping portion 32; wherein, when the clip 3 is in a locked state, the movable part 2 is located at the first position, and the buckling portion 22 is buckled with the clamping portion 32 to limit the inserting portion 31 from being disengaged from the inserting slot 11 at the notch of the inserting slot 11; when the clip 3 is in a released state, the movable part 2 is located at the second position, and the buckling portion 22 is disengaged from the clamping portion 32, so that the inserting portion 31 can be disengaged from the notch of the inserting slot 11 at the notch of the inserting slot 11.
[0056] Specifically, the clip 3 is provided with a rearward plug-in portion 31 which extends in the front-to-back direction. The shape of the plug-in portion 31 is generally compatible with the shape of the plug-in slot 11, so that when the plug-in portion 31 is plugged into the plug-in slot 11, the plug-in portion 31 can be limited in the circumferential direction of the plug-in slot 11.
[0057] The rear end of the plug-in portion 31 is provided with a snap-fitting portion 32 for snap-fitting with the buckle portion 22. The specific arrangement of the buckle portion 22 and the snap-fitting portion 32 can be set according to the actual situation. For example, the buckle portion 22 and the snap-fitting portion 32 can both be hooks or convex parts; the buckle portion 22 and the snap-fitting portion 32 can also have one convex part and the other a slot. Figures 2 to 4 In this embodiment, the buckling portion 22 is a first buckle hook 22a, and the snap-fit portion 32 is a second buckle hook 32a. The buckling portion 22 and the snap-fit portion 32 are respectively the first buckle hook 22a and the second buckle hook 32a as an example for description below.
[0058] When the plug-in portion 31 of the clip 3 is inserted into the plug-in slot 11, when the button 23 is not pressed, the movable member 2 is located at the first position, and under the action of the return spring 4a, the first hook 22a and the second hook 32a are hooked together, so that the plug-in portion 31 of the clip 3 cannot be pulled out from the plug-in slot 11. When the button 23 is pressed, the first hook 22a and the second hook 32a are disengaged from each other, so that the plug-in portion 31 of the clip 3 can be pulled out from the plug-in slot 11.
[0059] The locking of the magazine 3 is achieved by hooking the first hook 22a and the second hook 32a together. The first hook 22a is movable, and an elastic reset member 4 can be used to switch the first hook 22a between the hooked position and the disengaged position, thereby achieving rapid removal of the magazine 3, so that the staples can be quickly cleaned without the help of additional tools.
[0060] The magazine clip 3 of the striking tool 100 of the present invention is locked with the tool body 1 by means of the buckling portion 22 and the clamping portion 32. The magazine clip 3 can be quickly removed by pressing the pressing portion 21 of the movable part 2 to disengage the buckling portion 22 from the clamping portion 32, so that the nails can be quickly cleaned without the help of additional tools.
[0061] Optionally, see Figure 3 and Figure 4 In the present embodiment, when the movable member 2 is located at the first position, one end of the pressing portion 21 away from the inside of the plug slot 11 extends out of the mounting hole 12 .
[0062] Specifically, when the button 23 is not pressed, the upper end of the button 23 extends upward to outside the mounting hole 12 , so that the upper end of the button 23 protrudes from the outer surface of the tool body 1 , which makes it easy to press the button 23 .
[0063] Optionally, see Figure 3 and Figure 4 In this embodiment, when the movable member 2 is located at the first position, one end of the fastener 24 away from the buckling portion 22 abuts against the inner groove side wall of the insertion groove 11 where the mounting hole 12 is provided.
[0064] Specifically, when the movable member 2 is located at the first position, the upper surface of the rear end of the fastener 24 abuts against the upper inner groove side wall of the insertion groove 11, thereby limiting the movable member 2 located at the first position in the upper and lower directions.
[0065] For further information, see Figure 3 and Figure 4 In this embodiment, a boss 14 is protruding from the inner groove side wall of the plug-in groove 11, and the mounting hole 12 is arranged on the surface of the boss 14 facing the fastener 24; when the movable part 2 is in the first position, the end of the fastener 24 away from the buckling part 22 abuts against the surface of the boss 14 where the mounting hole 12 is arranged.
[0066] Specifically, a boss 14 is provided on the upper inner groove side wall of the plug slot 11, and the rear end of the fastener 24 abuts against the lower surface of the boss 14, so that the movable member 2 located at the first position can be limited in the upper and lower directions. In addition, by providing the boss 14 on the upper inner groove side wall of the plug slot 11, a gap can be formed between the front end of the fastener 24 and the upper groove side wall of the plug slot 11, so that the second hook 32a is convenient to extend into the upper side of the front end of the fastener 24 and hook together with the first hook 22a located at the front end of the fastener 24.
[0067] The button 23 and the fastener 24 are fixedly connected by a screw connection 25, and a return spring 4a is provided between the button 23 and the fastener 24, so that the fastener 24 can automatically return to the hooked state; when the button 23 is not pressed, under the action of the return spring 4a, the first hook 22a and the second hook 32a are hooked together, so that the plug-in portion 31 of the clip 3 cannot be pulled out from the plug-in slot 11; when the button 23 is pressed, the first hook 22a and the second hook 32a are disengaged, so that the plug-in portion 31 of the clip 3 can be pulled out from the plug-in slot 11.
[0068] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A striking tool, characterized in that: include: A tool body, wherein the tool body is provided with a plug-in slot, and a mounting hole is provided through the slot side wall of the plug-in slot; A movable member, the movable member can be slidably arranged at the mounting hole along the extending direction of the mounting hole, the movable member is provided with a pressing portion and a buckling portion, the pressing portion is located at the mounting hole, so that the movable member can be driven to slide by the pressing portion, and the buckling portion is located in the plug-in slot; A clip, wherein the clip is provided with an inserting portion, the inserting portion is used to be inserted into the inserting slot, and the inserting portion is provided with a clamping portion; Wherein, when the clip is in a locked state, the movable member is located at the first position, and the buckling portion is buckled with the clamping portion to restrict the plug-in portion from being disengaged from the plug-in slot from the notch of the plug-in slot; When the clip is in a released state, the movable member is located at the second position, and the buckling portion is disengaged from the clamping portion, so that the plug-in portion can be disengaged from the plug-in slot through the notch of the plug-in slot.
2. The striking tool according to claim 1, characterized in that: When the movable member is located at the first position, one end of the pressing portion away from the interior of the plug slot extends out of the mounting hole.
3. The striking tool according to claim 1, characterized in that: The movable parts include: A button, the button is extended along the sliding direction of the movable member, and the button forms the pressing portion; A fastener is provided extending along the depth direction of the insertion slot, one end of the fastener is connected to an end of the button close to the inside of the insertion slot, and the fastening portion is provided at an end of the fastener away from the button.
4. The striking tool according to claim 3, characterized in that: An installation column extending along the sliding direction of the movable part is provided at one end of the fastener away from the buckling part, and an end of the installation column close to the button extends from the plug-in slot into the installation hole, and the button is connected to one end of the installation column located in the installation hole.
5. The striking tool according to claim 4, characterized in that: A positioning groove is provided on the end surface of the button close to the mounting post, and one end of the mounting post close to the button extends into the positioning groove; The button is fixedly connected to one end of the mounting post located in the mounting hole via a screw connection.
6. The striking tool according to claim 4, characterized in that: An abutment limit surface facing the button is arranged on the inner hole wall of the mounting hole, a return spring is arranged in the mounting hole, the return spring is sleeved outside the mounting column, and two ends of the return spring respectively abut the abutment limit surface and the end surface of the button close to the mounting column.
7. The striking tool according to claim 3, characterized in that: When the movable member is located at the first position, one end of the fastener away from the buckling portion abuts against the inner groove side wall of the plug-in groove where the mounting hole is provided.
8. The striking tool according to claim 7, characterized in that: A boss is protruding from the inner groove side wall of the plug-in groove, and the mounting hole is arranged on the table surface of the boss facing the fastener; when the movable part is in the first position, the end of the fastener away from the buckling part abuts against the table surface of the boss where the mounting hole is arranged.
9. The striking tool according to claim 1, wherein: The buckling portion is a first buckle hook, and the clamping portion is a second buckle hook.
10. The striking tool according to claim 1, wherein: An elastic reset member is arranged between the movable member and the tool body, and the elastic reset member is used for slidingly resetting the movable member to the first position.