Fastener driver

Abstract

The application discloses a fastener driver, comprising: a striking assembly comprising a striker configured to strike a fastener; a magazine accommodating the fastener; the fastener driver is characterized in that the fastener driver further comprises a trigger assembly which is operated by a user so as to be switched between a first state in which the firing pin is allowed to strike the fastener and a second state in which the firing pin is forbidden to strike the fastener; at least part of the lifting assembly is movably arranged in the magazine so as to drive the fastener to move in the magazine; the anti-idle-strike assembly has an anti-idle-strike state, the anti-idle-strike assembly comprises a stop piece, and in the anti-idle-strike state, the stop piece prohibits the trigger assembly from being switched to the first state; and when the triggering assembly prevents the stopping piece from performing the first movement, the lifting assembly drives the stopping piece to perform the second movement. The fastener driver is convenient and safe to use.

Description

Technical Field

[0001] This application relates to the field of power tools, and more particularly to a fastener driver. Background Art

[0002] A fastener driver in the related art is generally used to fix workpieces. The user shoots fasteners into the workpieces to achieve the fixation of the workpieces. Generally, the user needs to install multiple fasteners in the magazine of the fastener driver to continuously use the fastener driver. When there are a small number of fasteners remaining in the magazine of the existing fastener driver, the cooperation between the fasteners and the firing pin is poor, affecting the user experience.

[0003] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0004] An object of this application is to solve or at least mitigate some or all of the above problems. To this end, the object of this application is to provide a convenient-to-use fastener driver.

[0005] To achieve the above object, this application adopts the following technical solutions: A fastener driver includes: a striking assembly including a firing pin configured to strike a fastener; a magazine for accommodating the fasteners; characterized in that the fastener driver further includes: a trigger assembly for the user to operate to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; a lifting assembly at least partially movably disposed in the magazine to drive the fasteners to move in the magazine; an anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; when the trigger assembly obstructs the stopper from performing a first movement, the lifting assembly drives the stopper to perform a second movement.

[0006] In some embodiments, the first movement is a first action of rotating about a first axis in a first direction, and the second movement includes a first action of rotating about the first axis in the first direction and a second action of rotating about a second axis in a second direction.

[0007] In some embodiments, the lifting assembly includes a first lifting portion, the stopper includes a first abutting surface, and the first lifting portion abuts against the first abutting surface to drive the stopper to perform the first movement or the second movement.

[0008] In some embodiments, when the stopper performs the second movement, the lifting assembly drives the fasteners to move.

[0009] In some embodiments, at least a part of the triggering component is arranged to move along a first straight line. The triggering component includes an obstructive part located in the circumferential direction of the first straight line and a triggering part extending substantially perpendicular to the first straight line.

[0010] In some embodiments, an elastic member is further included. When the lifting component applies a first acting force to the stopper and the obstructive part applies a second acting force to the stopper, the stopper applies a third acting force to the elastic member to perform a second movement.

[0011] In some embodiments, when the second acting force decreases to zero, the elastic member drives the stopper to perform a third movement.

[0012] In some embodiments, the first movement is a first action of rotating along a first direction about a first axis. The second movement includes a first action of rotating along the first direction about the first axis and a second action of rotating along a second direction about a second axis. The third movement includes a first action of rotating along the first direction about the first axis and a third action of rotating along a third direction about the second axis.

[0013] In some embodiments, the elastic member has an elastic force, and the ratio of the elastic force to the mass of the stopper is greater than 1 N / g and less than or equal to 10 N / g.

[0014] In some embodiments, the triggering component includes a receiving bin, and the receiving bin houses at least a part of the sensing device that enables the triggering component to switch between a first state and a second state.

[0015] In some embodiments, the anti-dry-fire component includes a limiting part that limits the amplitude of the second movement of the stopper.

[0016] In some embodiments, the limiting part includes a receiving space, the stopper includes a rotating part received in the receiving space, the length of the receiving space in the front-rear direction limits the amplitude of the second movement of the stopper, and in the front-rear direction, the ratio of the length of the receiving space to the length of the rotating part is greater than or equal to 1.2.

[0017] In some embodiments, the limiting part is arranged on the magazine.

[0018] A fastener driver, comprising: a striking assembly including a firing pin configured to strike a fastener; a magazine for accommodating the fasteners; characterized in that the fastener driver further comprises: a trigger assembly for user operation to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; a lifting assembly at least partially movably disposed in the magazine to drive the fasteners to move in the magazine; an anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; when a preset number of fasteners remain in the magazine, the lifting assembly drives the stopper to move, and the movement includes an action of rotating about a first axis and an action of rotating about a second axis.

[0019] A fastener driver, comprising: a striking assembly including a firing pin configured to strike a fastener; a magazine for accommodating the fasteners; characterized in that the fastener driver further comprises: a trigger assembly for user operation to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; a lifting assembly at least partially movably disposed in the magazine to drive the fasteners to move in the magazine; an anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; when a preset number of fasteners remain in the magazine, the stopper flips to allow at least part of the lifting assembly to lift.

[0020] A fastener driver, comprising: a striking assembly including a firing pin configured to strike a fastener; a magazine for accommodating the fasteners; characterized in that the fastener driver further comprises: a trigger assembly for user operation to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; an anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; a lifting assembly at least partially movably disposed in the magazine to drive the fasteners to move in the magazine, the lifting assembly being configured to drive the stopper to switch to the anti-dry-fire state; an elastic member in contact with the stopper; when the trigger assembly is in the first state and the trigger assembly hinders the stopper from switching to the anti-dry-fire state, the elastic member absorbs energy, and when the trigger assembly switches to the second state, the elastic member releases energy to drive the stopper to switch to the anti-dry-fire state.

[0021] The advantages of the present application are as follows: The fastener driver is convenient and comfortable to use. Description of the Drawings

[0022] Figure 1 is a perspective view of a fastener driver according to an embodiment of the present application; Figure 2 is Figure 1 the top view of the fastener driver in Figure 3 is Figure 1 a cross-sectional view along line x1 of a fastener driver in Figure 4 is Figure 3 an enlarged view of the trigger assembly and extension of a fastener driver in Figure 5 is Figure 1 a right view of a fastener driver in with the housing removed; Figure 6 is Figure 5 a perspective view of a fastener driver in Figure 7 is Figure 1 a perspective view of the firing pin, fastener, second guide, trigger assembly, lifting assembly, and partial anti-double-fire assembly of a fastener driver in from one perspective; Figure 8 is Figure 1 a perspective view of the firing pin, fastener, second guide, trigger assembly, lifting assembly, and partial anti-double-fire assembly of a fastener driver in from another perspective; Figure 9 is Figure 1 a right view of the trigger assembly, lifting assembly, partial anti-double-fire assembly, and partial magazine of a fastener driver in ; Figure 10 is Figure 9 a cross-sectional view along line x2 of a fastener driver in ; Figure 11 is Figure 9 a cross-sectional view along line x3 of a fastener driver in ; Figure 12 is Figure 1 a perspective view of the lifting assembly of a fastener driver in ; Figure 13 is Figure 1 a perspective view of the lifting assembly, trigger assembly, and partial anti-double-fire assembly of a fastener driver in ; Figure 14 is Figure 1 a right view of the trigger assembly, stop, and fastener when the trigger assembly of a fastener driver in is in the first state and the stop makes the first movement; Figure 15 is Figure 1 a rear view of the trigger assembly, stop, partial lifting assembly, and fastener when the trigger assembly of a fastener driver in is in the first state and the stop makes the first movement; Figure 16 is Figure 1 a right view of the trigger assembly, stop, and fastener when the trigger assembly of a fastener driver in is in the first state and the stop makes the second movement; Figure 17 Is Figure 1 The rear view of the trigger assembly of the fastener driver in the first state, and the trigger assembly, the stopper, the partial lifting assembly and the fastener when the stopper performs the second movement; Figure 18 Is Figure 1 The right view of the trigger assembly of the fastener driver in the second state, and the trigger assembly, the stopper and the fastener when the stopper performs the third movement; Figure 19 Is Figure 1 The rear view of the trigger assembly of the fastener driver in the second state, and the trigger assembly, the stopper, the partial lifting assembly and the fastener when the stopper performs the third movement; Figure 20 Is Figure 1 The enlarged view of the anti-double-fire assembly of the fastener driver; Figure 21 Is Figure 20 The enlarged view of the limiting part, the rotating part and the elastic part of the fastener driver; Figure 22 Is Figure 1 The perspective view of the stopper, the rotating shaft and the elastic part of the fastener driver; Figure 23 Is Figure 1 The exploded view of the trigger assembly and the partial anti-double-fire assembly of the fastener driver; Figure 24 Is the perspective view of the fastener driver of another embodiment of the present application; Figure 25 Is Figure 24 The enlarged view of the light-emitting device of the fastener driver in one position; Figure 26 Is Figure 24 The enlarged view of the light-emitting device of the fastener driver in another position; Figure 27 Is Figure 24 The perspective view of another implementation manner of the fastener driver; Figure 28 Is Figure 27 The enlarged view of the light-emitting device and the accommodating part of the fastener driver; Figure 29 Is Figure 27 The perspective view of the light-emitting device of the fastener driver; Figure 30 Is Figure 24 The perspective view of another implementation manner of the fastener driver at an angle; Figure 31 Is Figure 30Stereoscopic view of the fastener driver from another angle; Figure 32 is Figure 1 Front view of the first cylinder, transmission mechanism and motor of another embodiment of the fastener driver in; Figure 33 is Figure 32 Stereoscopic view of the fastener driver in; Figure 34 Right view of the fastener driver of another embodiment of the present application; Figure 35 is Figure 34 Stereoscopic view of the fastener driver in removing part of the housing and magazine; Figure 36 is Figure 34 Front view of the display device, sensing device and fastener of the fastener driver in; Figure 37 is Figure 36 Enlarged view of the display device, sensing device and fastener of the fastener driver in. Detailed implementation manners

[0023] Before explaining any embodiment of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0024] In the present application, the terms "include", "comprise", "have" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0025] In the present application, the term "and / or" is a relationship describing associated objects, indicating that three relationships may exist. For example, a and / or b may represent: a exists alone, a and b exist simultaneously, and b exists alone. In addition, in the present application, the character " / " generally represents an "and / or" relationship between the associated objects before and after.

[0026] In this application, the terms "connected", "combined", "coupled", and "mounted" can be direct connections, combinations, couplings, or mountings, or indirect connections, combinations, couplings, or mountings. Among them, by way of example, a direct connection means that two parts or components are connected together without an intermediate member being provided therebetween, and an indirect connection means that two parts or components are each connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, and can include electrical connections or couplings.

[0027] In this application, those of ordinary skill in the art will understand that relative terms used in connection with a quantity or condition (such as "about", "approximately", "substantially", etc.) are intended to include the recited value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances due to manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose a range defined by the absolute values of two endpoints. Relative terms may refer to a plus or minus a certain percentage (such as 1%, 5%, 10% or more) of the indicated value. Numerical values that do not employ relative terms should also be disclosed as specific values having tolerances. In addition, when expressing a relative angular positional relationship (such as substantially parallel, substantially perpendicular), "substantially" may refer to a plus or minus a certain number of degrees (such as 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0028] In this application, those of ordinary skill in the art will understand that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0029] In this application, the directional terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as limiting the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that the directional terms such as the upper side, lower side, left side, right side, front side, rear side, etc. not only represent the positive direction, but can also be understood as the side direction. For example, the lower side can include directly below, lower left, lower right, front lower, and rear lower, etc.

[0030] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When using the units "controller", "processor", "central processing unit", "CPU", or "MCU" to perform specific functions, unless otherwise specified, these functions can be performed by a single one of the above units or multiple ones of the above units.

[0031] In this application, the terms "device", "module", or "unit" can be implemented in the form of hardware or software in order to achieve specific functions.

[0032] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or a similar electronic computing device (e.g., a controller, a processor, etc.).

[0033] The technical solution of this application will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0034] This embodiment provides a fastener driver 100. As Figure 1 and Figure 2 shown, the fastener driver 100 provided in this embodiment is a pre-inflated single-cylinder fastener driver. The fastener driver can be a single-cylinder fastener driver, a double-cylinder fastener driver, a pre-inflated fastener driver, a non-pre-inflated fastener driver, a spring-type fastener driver, etc., which are not limited herein. The fastener driver 100 is capable of generating a striking force on the fastener 10 so as to drive the fastener 10 into a workpiece. The fastener driver 100 includes a housing 110 and a magazine 120. The housing 110 includes a main housing 111, a transmission part 112, and a grip part 113 for a user to hold. The magazine 120 is used to accommodate the fasteners 10, and at least a part of the magazine 120 is disposed outside the housing 110. The fasteners 10 provided in this embodiment are nails. The sizes of the nails can be 15Ga, 16Ga, 18Ga, 23Ga, 25Ga, etc., which are not limited herein. The use angles of the nails can be 0 degrees, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, etc., which are not limited herein. The nails can be straight nails, U-shaped nails, etc., which are not limited herein.

[0035] One end of the holding part 113 is connected to the main housing 111. A trigger 1131 is provided on the holding part 113, and the trigger 1131 is connected to the main switch. The user triggers the main switch through the trigger 1131 to control the start and stop of the fastener driver 100. The main switch can be a mechanical or electronic switch. The fastener driver 100 includes a coupling part 114. The other end of the holding part 113 is connected to the coupling part 114, and the coupling part 114 is used to access a DC or AC power source. In this embodiment, the coupling part 114 detachably mounts a battery pack 115, and the specifications and power of the battery pack 115 are not limited herein.

[0036] As Figures 2 to 3 shown, the fastener driver 100 further includes a striking assembly 130, a transmission mechanism 140, an energy storage device 150, and a motor 160. The striking assembly 130 includes a firing pin 131 and a piston 132. The firing pin 131 is mounted on the piston 132, and the piston 132 is substantially behind the firing pin 131. The energy storage device 150 drives the piston 132 and the firing pin 131 to move forward to output a striking force in the striking direction. The firing pin 131 strikes the fastener 10 to drive the fastener 10 into the workpiece. The transmission mechanism 140 drives the firing pin 131 to move backward to store energy for the energy storage device 150. The energy storage device 150 includes a first cylinder 151. The first cylinder 151 houses the piston 132 and allows the piston 132 and a part of the firing pin 131 to reciprocate within the first cylinder. An accommodation space is formed inside the main housing 111 to accommodate at least part of the energy storage device 150 and the striking assembly 130. The main housing 111 supports at least part of the energy storage device 150. The motor 160 drives at least the transmission mechanism 140, and the battery pack 115 provides energy for the motor 160. An accommodation space is formed inside the transmission part 112. At least part of the motor 160 and the transmission mechanism 140 are accommodated in the transmission part 112. The transmission part 112 supports at least part of the motor 160 and the transmission mechanism 140. In this embodiment, the motor 160 is an electric motor. When the transmission mechanism 140 drives the striking assembly 130 to move backward, the air in the first cylinder 151 is compressed, and the energy storage device 150 stores energy. When the energy storage device 150 drives the striking assembly 130 to move forward, the elastic potential energy of the compressed air is converted into kinetic potential energy, and the striking assembly 130 outputs a striking force.

[0037] As Figures 3 to 7As shown, the fastener driver 100 includes a trigger assembly 200. The trigger assembly 200 is for user operation. At least part of the trigger assembly 200 is arranged to move along a first straight line 101. The trigger assembly 200 has a first state and a second state. In the first state, the trigger assembly 200 allows the firing pin 131 to strike the fastener 10. In the second state, the trigger assembly 200 prohibits the firing pin 131 from striking the fastener 10. The user operates the trigger assembly 200 to switch the trigger assembly 200 between the first state and the second state. Generally, the user presses at least part of the trigger assembly 200 against the workpiece to make at least part of the trigger assembly 200 active. The trigger assembly 200 includes a trigger lever 201 and a contact 202. The contact 202 is at least partially located at the foremost end of the fastener driver 100. Thus, when the user aligns the front end of the fastener driver 100 with the workpiece and approaches the workpiece, the contact 202 will first contact the workpiece. When the contact 202 contacts the workpiece and moves, the trigger lever 201 moves along with the contact 202. At least part of the trigger lever 201 and the contact 202 are arranged to move along the first straight line 101. It should be noted that the trigger lever 201 and the contact 202 move along the first straight line 101 relative to the housing 110. After the contact 202 contacts the workpiece, when the user continues to operate the fastener driver 100 to move towards the workpiece, the positions of the trigger lever 201 and the contact 202 relative to the workpiece remain unchanged, but the housing 110 moves towards the workpiece. Therefore, the trigger lever 201 and the contact 202 move backward along the first straight line 101 relative to the housing 110. Similarly, when the contact 202 remains in contact with the workpiece and the user operates the fastener driver 100 to move away from the workpiece, the positions of the trigger lever 201 and the contact 202 relative to the workpiece remain unchanged, but the housing 110 moves away from the workpiece. Therefore, the trigger lever 201 and the contact 202 move forward along the first straight line 101 relative to the housing 110. The trigger lever 201 and the contact 202 are connected by threads. In this way, the contact 202 can drive the trigger lever 201 to move along the first straight line 101, and the trigger lever 201 can also move relative to the contact 202.

[0038] The fastener driver 100 includes a safety switch. The user can use the fastener driver 100 to drive out the fastener 10 only when both the safety switch and the main switch are triggered. The trigger assembly 200 is arranged to trigger the safety switch. When the trigger assembly 200 moves to the trigger position, the safety switch is triggered. The safety switch can be a mechanical or an electronic switch.

[0039] When the trigger assembly 200 does not abut against the workpiece, or when the trigger assembly 200 abuts against the workpiece but does not move to the trigger position, the trigger assembly 200 is in the second state. When the trigger assembly 200 abuts against the workpiece and moves backward along the first straight line 101 to the trigger position, the safety switch is triggered and the trigger assembly 200 is in the first state. When the safety switch is turned on and when the user presses the trigger 1131, the firing pin 131 ejects a fastener 10. After completing the strike, the firing pin 131 stays at the stop position to wait for the next time the user presses the trigger 1131 and the safety switch is turned on to strike the next fastener 10. At the stop position, the fastener driver 100 stops. When the user presses the trigger 1131, the drive mechanism continues to drive the firing pin 131 to move backward to the top dead center position. The air in the first cylinder 151 is basically compressed to the limit, and the elastic potential energy stored in the energy storage device 150 basically reaches the peak value. The striking assembly 130 stops moving backward, and the firing pin 131 basically moves to the rearmost position it can reach. In some embodiments, when the trigger 1131 is pressed, every time the safety switch is turned on, that is, every time the user abuts the fastener driver 100 against the workpiece, the firing pin 131 strikes a fastener 10. After the firing pin 131 completes one strike, the fastener 10 moves in the magazine 120 so that the firing pin 131 can eject the next fastener 10. The striking assembly 130 reciprocates under the drive of the transmission mechanism 140 and the energy storage device 150 to continuously strike the fasteners 10 in sequence. In each striking cycle, the fastener driver 100 ejects a fastener 10.

[0040] The fastener driver 100 includes a guiding assembly 180 that guides the fastener 10 to move along the striking direction. The guiding assembly 180 communicates with at least a part of the magazine 120. The fastener driver 100 further includes a support frame 190. The support frame 190 connects the energy storage device 150 and the guiding assembly 180. The support frame 190 includes a hole 191 through which the firing pin 131 passes through the support frame 190. The support frame 190 is fixedly connected to the energy storage device 150, and the guiding assembly 180 is fixedly connected to the support frame 190. The support frame 190 fixedly connects the energy storage device 150 and the guiding assembly 180 at the same time, so that the energy storage device 150 and the guiding assembly 180 have high coaxiality. The guiding assembly 180 includes a first guiding member 181 and a second guiding member 182. The second guiding member 182 includes an input port 1821. The input port 1821 communicates with at least a part of the magazine 120 so that the fastener 10 passes through the input port 1821 from the magazine 120 and is lifted to the guiding assembly 180.

[0041] As Figures 6 to 7As shown, the guiding component 180 includes a first mounting portion 183 for mounting the trigger rod 201. The first mounting portion 183 includes a first protrusion 1831 formed on the second guiding member 182. The first protrusion 1831 is formed with a through hole, so that the first protrusion 1831 can be sleeved on the trigger rod 201 through the through hole. The trigger rod 201 is supported by the first mounting portion 183. When the contact member 202 moves, the contact member 202 drives the trigger rod 201 to move along the first straight line 101 through the first mounting portion 183. The trigger rod 201 is supported by the first mounting portion 183, saving manufacturing costs and having a stable structure. The support frame 190 includes a second mounting portion 192 for mounting the detection mechanism 170. The detection mechanism 170 is used to detect the position of the trigger assembly 200. The second mounting portion 192 includes a second protrusion 1921 formed on the support frame 190. The detection mechanism 170 is fixedly mounted to the second protrusion 1921 by screws.

[0042] The detection mechanism 170 is mounted on the support frame 190. The support frame 190 is fixedly connected to the guiding component 180, and the guiding component 180 supports the trigger assembly 200. In this way, both the guiding component 180 and the detection mechanism 170 are mounted to the support frame 190, and the positional relationship between the detection mechanism 170 and the guiding component 180 is fixed. The guiding component 180 supports the trigger assembly 200. In this way, the positional relationship between the trigger assembly 200 and the detection mechanism 170 is stable and reliable, facilitating the detection mechanism 170 to accurately identify the position of the trigger assembly 200 and reducing errors.

[0043] As Figures 3 to 4 , Figures 7 to 8 shown, the trigger assembly 200 includes a rod sleeve 210, and the rod sleeve 210 includes a hole. The rod sleeve 210 is sleeved on one end of the trigger rod 201 close to the detection structure through the hole. In this embodiment, the rod sleeve 210 and the trigger rod 201 are detachably connected by threads, which is convenient for installation, and the structure is simple and compact. After the rod sleeve 210 is fixedly mounted to the trigger rod 201, the rod sleeve 210 moves synchronously with the trigger rod 201. In some embodiments, the rod sleeve 210 can also be connected to the trigger rod 201 in other ways, or the rod sleeve 210 can be integrally formed with the trigger rod 201. The trigger assembly 200 includes a receiving chamber 212 for receiving at least part of the sensing device 175. The receiving chamber 212 is provided on the rod sleeve 210. In this embodiment, the receiving chamber 212 is a cylindrical empty chamber formed in the center of the rod sleeve 210. The receiving chamber 212 can be open or closed, which is not limited herein.

[0044] The sensing device 175 causes the triggering assembly 200 to switch between a first state and a second state. The fastener driver 100 includes a control device 220, and the control device 220 includes a controller 221. The controller 221 is arranged to be connected to the detection mechanism 170. The controller 221 is connected to the detection mechanism 170 so that signals can be sent and received between the controller 221 and the detection mechanism 170. The detection mechanism 170 is arranged to sense the position of the sensing device 175. When the sensing device 175 moves with the triggering assembly 200 to the triggering position, the detection mechanism 170 detects the sensing device 175, and controls the safety switch to be turned on through the controller 221, and the triggering assembly 200 is in the first state. When the sensing device 175 moves with the triggering assembly 200 away from the triggering position, the detection mechanism 170 detects that the sensing device 175 is not in the triggering position, and the detection mechanism 170 controls the safety switch to be turned off through the controller 221, and the triggering assembly 200 is in the second state. The sensing device 175 includes a magnetic element 176, specifically a cylindrical magnet. The detection mechanism 170 includes a Hall sensor 171. The magnet is directly fixed to the trigger rod 201 by being installed in the rod sleeve 210. The magnet moves with the rod sleeve 210 and the trigger rod 201. The installation is simple, the structure is stable and compact, and the detection accuracy is high. In some embodiments, the detection mechanism 170 may also include a potentiometer, etc., and the sensing device 175 may also include other parts that can be detected by the detection mechanism 170, which are not limited herein as long as the detection mechanism 170 can detect the position of the sensing device 175.

[0045] The triggering assembly 200 includes a depth adjuster 213 and a gasket 214. The user rotates the depth adjuster 213 to adjust the depth at which the fastener 10 is driven into the workpiece. The depth adjuster 213 is drivingly connected to the trigger rod 201. When the depth adjuster 213 rotates, the depth adjuster 213 drives the trigger rod 201 and the rod sleeve 210 to rotate as well. The gasket 214 is arranged between the rod sleeve 210 and the first mounting portion 183 to prevent the moving rod sleeve 210 from directly contacting the stationary first mounting portion 183, thereby preventing the rod sleeve 210 from being loosened due to friction. The gasket 214 is fixedly sleeved on the trigger rod 201 through a flat position, so that the gasket 214 can move synchronously with the trigger rod 201. The rod sleeve 210, the gasket 214 and the trigger rod 201 move synchronously, reducing friction, and the parts will not be loosened, and the connection is stable and reliable.

[0046] As Figures 1 to 4As shown, the housing 110 includes an extension portion 1121 which houses the first mounting portion 183. A partial trigger rod 201, a rod sleeve 210, a sensing device 175 and a detection mechanism 170 are housed in the extension portion 1121. The partial trigger rod 201, the rod sleeve 210 and the sensing device 175 can move within the extension portion 1121. The extension portion 1121 prevents dust from contaminating the parts, has a simple and reliable structure, saves costs and is aesthetically pleasing. In this embodiment, the extension portion 1121 is integrally formed with the transmission portion 112, with low manufacturing costs. In some embodiments, the extension portion 1121 is integrally formed with the main housing 111.

[0047] The distance L1 from the end of the trigger rod 201 away from the detection mechanism 170 to the foremost end of the fastener driver 100 is greater than or equal to 30 mm and less than or equal to 60 mm. In some embodiments, L1 is greater than or equal to 35 mm and less than or equal to 55 mm. In some embodiments, L1 is greater than or equal to 40 mm and less than or equal to 50 mm. The foremost end of the fastener driver 100 is unobstructed, with good visibility, facilitating the user to insert the guiding assembly 180 into a narrow space for operation.

[0048] As Figure 6 shown, the guiding assembly 180 includes a stop block 184. The stop block 184 prevents the workpiece from contacting the trigger rod 201 rather than the contact member 202 first when the user operates the fastener driver 100 on an irregular workpiece, thus causing a safety hazard. The stop block 184 is located above the trigger rod 201. In some embodiments, the stop block 184 can also be located below the trigger rod 201. In the front-rear direction, the foremost ends of the stop block 184 and the trigger rod 201 are substantially flush. The position of the stop block 184 is fixed relative to the housing 110. In this way, when the workpiece contacts the stop block 184, the workpiece will be blocked by the stop block 184, and the workpiece will not continue to cause the movement of the trigger rod 201, so the safety switch cannot be triggered, improving safety. The distance from the end of the stop block 184 away from the detection mechanism 170 to the foremost end of the fastener driver 100 is substantially equal to L1. The foremost end of the fastener driver 100 is unobstructed, with good visibility. The stop block 184 is provided on the second guiding member 182, with a compact structure. In this embodiment, the stop block 184 and the second guiding member 182 are integrally formed, saving costs.

[0049] The firing pin 131 stays at the stop position after completing one strike. The fastener driver 100 includes a lifting assembly 230. At least part of the lifting assembly 230 is movably disposed in the magazine 120 to drive the fastener 10 to move in the magazine 120. After one fastener 10 is struck out, the lifting assembly 230 lifts the next fastener 10 through the input port 1821 to the guiding assembly 180 to be struck out by the firing pin 131. During the time difference between the firing pin 131 reaching the stop position and the fastener driver 100 striking out the fastener 10 next time, the lifting assembly 230 needs to lift a fastener 10 from the magazine 120 to the front end of the firing pin 131. If the lifting assembly 230 jams, the fastener 10 may not be lifted to a position where it can be struck out by the firing pin 131. The firing pin 131 can continue to move but cannot strike out the fastener 10, which is inconvenient to use and reduces work efficiency.

[0050] Generally, in order to quickly strike out the fastener 10 during the next strike, when at the stop position, the firing pin 131 and the piston 132 are in a state of compressing the air in the first cylinder 151. When the fastener driver 100 vibrates or encounters other situations, the firing pin 131 may accidentally get out of control and strike out the fastener 10 when the user is not aware, causing danger.

[0051] In some embodiments, when at the stop position, the front end of the firing pin 131 is located behind the fastener 10, and the firing pin 131 and the fastener 10 do not overlap in the front-rear direction. The fastener driver 100 includes a device for preventing the firing pin 131 from accidentally striking out, and the device for preventing the firing pin 131 from accidentally striking out is provided to prevent the firing pin 131 from accidentally striking out. In these embodiments, the time difference between the firing pin 131 reaching the stop position and the fastener driver 100 striking out the fastener 10 next time depends on the speed at which the user operates the fastener driver 100. After the user shoots out one fastener 10, the firing pin 131 moves to the stop position. Subsequently, the user lifts the fastener driver 100, moves the fastener driver 100 to a suitable position, and strikes out one fastener 10 again. The time difference between the firing pin 131 reaching the stop position and the fastener driver 100 striking out the fastener 10 next time is basically equal to: the time consumed by the user to lift, move, and then press down the fastener driver 100. It can be understood that the average time consumed by the user to lift, move, and then press down the fastener driver 100 is generally greater than 1 second. That is to say, since the firing pin 131 and the input port 1821 do not interfere, after the firing pin 131 moves to the stop position, the lifting assembly 230 can start to lift the fastener 10, and the lifting assembly 230 needs to lift the fastener 10 to the guiding assembly 180 within a time greater than 1 second.

[0052] In this embodiment, as Figure 7As shown, when in the stop position, the striker 131 presses above the fastener 10, and there is an overlap between the striker 131 and the fastener 10 in the front - rear direction. The striker 131 interferes with the input port 1821 in the stop position. In this way, even if the striker 131 accidentally fires after stopping in the stop position, the fastener 10 will not be fired out. In this embodiment, the time difference between the striker 131 reaching the stop position and the fastener driver 100 firing the fastener 10 next time depends on the moving speed of the striker 131 and the distance between the stop position and the top dead center position. After the user fires a fastener 10, the striker 131 quickly moves to the stop position. Since the striker 131 interferes with the input port 1821 in the stop position, during the process of the user lifting, moving, and then pressing down the fastener driver 100, the striker 131 remains in the stop position, and the striker 131 will prevent the lifting assembly 230 from lifting the fastener 10 to the guiding assembly 180. When the user presses the trigger 1131 again, the striker 131 moves towards the top dead center position, that is, the striker 131 moves backward. When the striker 131 moves to a position where it does not interfere with the input port 1821, the lifting assembly 230 can start to lift the fastener 10 to the guiding assembly 180, and this lifting action needs to end before the striker 131 moves forward from the top dead center position to contact the fastener 10, that is, the striking position. The time difference between the striker 131 reaching the stop position and the fastener driver 100 firing the fastener 10 next time is basically equal to: the time consumed for the striker 131 to move from the stop position to the top dead center position and then to the striking position. The time consumed for the striker 131 to move from the stop position to the top dead center position and then to the striking position is generally much less than 1 second. In this embodiment, the time consumed for the striker 131 to move from the stop position to the top dead center position and then to the striking position is about 0.02 to 0.04 seconds. That is to say, the lifting assembly 230 needs to lift the fastener 10 to the guiding assembly 180 within about 0.02 to 0.04 seconds. In order for the lifting assembly 230 to lift the fastener 10 in place within a short time, the lifting assembly 230 needs to move smoothly without jamming.

[0053] As Figures 9 to 13As shown, the fastener driver 100 includes an anti-dry-fire assembly 240, and the anti-dry-fire assembly 240 has an anti-dry-fire state. The anti-dry-fire assembly 240 includes a stopper 241. It is defined that when the stopper 241 is located on the moving path of the trigger assembly 200, the anti-dry-fire assembly 240 is in the anti-dry-fire state. It is defined that when the trigger assembly 200 is located on the moving path of the stopper 241, the trigger assembly 200 is in the first state. In the anti-dry-fire state, the stopper 241 prohibits the trigger assembly 200 from switching to the first state, and the trigger assembly 200 can only remain in the second state. In this way, in the anti-dry-fire state, the user cannot use the fastener driver 100 to drive out the fastener 10. The anti-dry-fire assembly 240 switches to the anti-dry-fire state when the remaining quantity of the fastener 10 reaches a lower preset value. The function of the anti-dry-fire state is that in the anti-dry-fire state, the user can learn the information that the quantity of the fastener 10 is insufficient, so as to replenish the fastener 10 into the magazine 120 in time. It is defined that in the anti-dry-fire state, the remaining quantity of the fastener 10 is the lowest preset value. In some embodiments, the lowest preset value is 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 fasteners.

[0054] Before entering the anti-dry-fire state, a certain quantity of the fasteners 10 remains in the magazine 120. It can be understood that before entering the anti-dry-fire state, the quantity of the fasteners 10 remaining in the magazine 120 is greater than or equal to the lowest preset value. The closer to the anti-dry-fire state, the fewer the number of the fasteners 10 remaining in the magazine 120, and the closer the quantity of the fasteners 10 is to the lowest preset value. The first state The lifting assembly 230 is movably arranged on the magazine 120. In this embodiment, the lifting assembly 230 moves up and down relative to the magazine 120 under the operation of the user. The lifting assembly 230 includes a magazine elastic member, and the magazine elastic member biases the lifting assembly 230 towards the guiding assembly 180. The user overcomes the elastic force and operates the lifting assembly 230 to move away from the guiding assembly 180 to create space for replenishing the fastener 10. When the fastener 10 is full, the lifting assembly 230 is farthest from the guiding assembly 180, and when the fastener 10 is exhausted, the lifting assembly 230 is closest to the guiding assembly 180. Each time the firing pin 131 drives out a fastener 10, the space above the remaining fasteners 10 becomes empty. If there is no obstruction at the input port 1821, the lifting assembly 230 will lift the fasteners 10 in the magazine 120 upward under the drive of the magazine elastic member to replenish a fastener 10 to the front end of the firing pin 131. The magazine elastic member is a spring, and the spring can be a tension spring or a coil spring.

[0055] The lifting assembly 230 drives the stopper 241 and the fastener 10 to move. The lifting assembly 230 includes a first lifting portion 232 and a second lifting portion 233. The first lifting portion 232 is configured to drive the stopper 241 to move, and the second lifting portion 233 is configured to drive the fastener 10 to move. After the fastener 10 is loaded into the magazine 120, the lower end of the second lifting portion 233 abuts against the fastener 10, and the second lifting portion 233 drives the fastener 10 to move upward. The stopper 241 is disposed at one end of the magazine 120 close to the guiding assembly 180, and the stopper 241 includes a first abutting surface 2421.

[0056] As the fastener 10 is gradually consumed, the lifting assembly 230 moves upward and gradually approaches the guiding assembly 180. After the first lifting portion 232 abuts against the first abutting surface 2421, the lifting assembly 230 and the stopper 241 form a driving connection. When the lifting assembly 230 continues to move upward, the lifting assembly 230 starts to drive the stopper 241 to perform a first motion. The stopper 241 is configured to rotate about a first axis 1001. The first motion is a first movement that rotates about the first axis 1001 in a first direction 1010. The relative positions of the first lifting portion 232 and the second lifting portion 233 are fixed. When the first lifting portion 232 drives the stopper 241 to perform the first motion, the second lifting portion 233 simultaneously drives the fastener 10 to move upward. In this embodiment, the first lifting portion 232 has an inclined surface, and the second lifting portion 233 has an arc surface.

[0057] In the left - right direction, at least a part of the stopper 241 is disposed between the magazine 120 and the trigger assembly 200. In the front - rear direction, at least a part of the stopper assembly is disposed between the trigger assembly 200 and the detection mechanism 170. The stopper 241 includes a stop portion 243 and a rotating portion 244. The stop portion 243 is farther from the first axis 1001 relative to the rotating portion 244. When the stopper 241 performs a first movement, the stopper 241 rotates about the first axis 1001 in the first direction 1010, and the stop portion 243 moves toward the trigger assembly 200. The trigger assembly 200 includes a trigger portion 216 perpendicular to the first straight line 101. When observed along the direction of the first straight line 101, when the stop portion 243 and the trigger portion 216 start to overlap, the stop portion 243 is located on the moving path of the trigger portion 216. The stop portion 243 prevents the rod sleeve 210 and the trigger rod 201 from moving along the first straight line 101 toward the detection mechanism 170. The stop portion 243 prevents the sensing device 175 from moving to a position where the detection mechanism 170 can detect it, that is, the trigger position, and the safety switch cannot be triggered, and the anti - misfire component 240 is in the anti - misfire state. The fastener driver 100 reminds the user to replenish the fasteners 10. In other words, when observed along the front - rear direction of the fastener driver 100, when the stopper 241 and the rod sleeve 210 start to overlap, the stopper 241 prevents the rod sleeve 210 from moving backward, the anti - misfire component 240 is in the anti - misfire state, and the trigger assembly 200 can only be maintained in the second state. On the contrary, when observed along the left - right direction of the fastener driver 100, when the stopper 241 and the rod sleeve 210 start to overlap, the trigger assembly 200 enters the first state, and the rod sleeve 210 prevents the stopper 241 from moving to the right, and the anti - misfire component 240 cannot be switched to the anti - misfire state.

[0058] Each time a fastener 10 is ejected, the lifting assembly 230 is lifted upward once. The distance that the lifting assembly 230 moves upward each time depends on the thickness of each fastener 10 in the up - down direction. Since the thickness of the fastener 10 is usually small, the distance that the lifting assembly 230 is lifted each time is short. When the first lifting portion 232 abuts against the first abutting surface 2421 and the first lifting portion 232 moves upward, the first lifting portion 232 drives the stopper 241 to perform the first movement. The upward movement of the first lifting portion 232 drives the rotation of the stopper 241. Since the distance that the first lifting portion 232 moves upward each time is very short, the angle that the stop portion 243 rotates toward the trigger assembly 200 each time is also very small.

[0059] When there are a preset number of fasteners 10 remaining in the magazine, the trigger assembly 200 obstructs the stopper 241 from making a first movement. When the trigger assembly 200 obstructs the stopper 241 from making a first movement, the lifting assembly 230 drives the stopper 241 to make a second movement. When the trigger assembly 200 is in the first state and the trigger assembly 200 obstructs the stopper 241 from making a first movement, the trigger assembly 200 obstructs the stopper 241 from switching to the anti-dry-fire state. Therefore, the lifting assembly 230 drives the stopper 241 to make a second movement. The trigger assembly 200 includes an obstructing portion 215 located in the circumferential direction of the first straight line 101. When the obstructing portion 215 is on the movement path of the stopper portion 243 making a first movement, the obstructing portion 215 obstructs the stopper 241 from making a first movement. In this embodiment, the rod sleeve 210 includes the obstructing portion 215, and the obstructing portion 215 is the outer circumferential surface of the rod sleeve 210. Before the anti-dry-fire assembly 240 enters the anti-dry-fire state, the trigger assembly 200 can move along the first straight line 101 as normal. When the trigger assembly 200 moves to the trigger position, a fastener 10 is ejected. The firing pin 131 then quickly moves to the stop position, and the firing pin 131 overlaps with the input port 1821 at the stop position. Therefore, until the next time the trigger assembly 200 moves to the trigger position and the firing pin 131 moves backward to not overlap with the input port 1821, the firing pin 131 prevents the lifting assembly 230 from lifting the fastener 10. When the number of fasteners 10 has not reached the preset number, the lifting assembly 230 only abuts against the fastener 10. When the fasteners 10 are gradually consumed and the number of fasteners 10 remaining in the magazine 120 approaches the preset number, the lifting assembly 230 moves to abut against the stopper 241. When the user operates the trigger assembly 200 and the trigger assembly 200 moves to the trigger position, the firing pin 131 moves backward to not overlap with the input port 1821, the lifting assembly 230 drives the fastener 10 to move upward, and starts to drive the stopper 241 to make a first movement.

[0060] The trigger assembly 200 is in the first state in Figures 14 to 17 and in the second state in Figures 18 to 19 As shown in Figure 14 and Figure 15As shown, when the trigger assembly 200 is in the trigger position, when observing the fastener driver 100 from the left or right side, the blocking portion 215 and the stop portion 243 at least partially overlap in the front-rear direction. When observing the fastener driver 100 from the front or rear side, if the gap between the blocking portion 215 and the stop portion 243 is very small in the left-right direction, or the blocking portion 215 just contacts the stop portion 243, the trigger assembly 200 blocks the stop member 241 from performing the first movement. That is to say, when the number of fasteners 10 reaches the preset number, in the first state, the firing pin 131 moves, and then the lifting assembly 230 starts to drive the stop member 241 to perform the first movement, but the trigger assembly 200 blocks the stop member 241 from performing the first movement. Since the lifting assembly 230 abuts against the stop member 241, if the stop member 241 cannot perform the first movement, the lifting assembly 230 cannot move upward. The lifting assembly 230 is stuck, and the fastener 10 cannot be lifted to the input port 1821 for the firing pin 131 to eject. If the stop member 241 cannot perform the first movement, the anti-dry-fire assembly 240 cannot enter the anti-dry-fire state. This means that every time the user operates the trigger assembly 200 to move, it will cause the firing pin 131 to dry-fire once. Especially in this embodiment, the firing pin 131 interferes with the input port 1821 at the stop position, and the lifting assembly 230 needs to lift the fastener 10 to the input port 1821 in a very short time. Once there is even a slight jamming of the lifting assembly 230, it will cause the lifting assembly 230 to be unable to lift the fastener 10 normally, and the user cannot use the fastener driver 100 normally.

[0061] As Figure 16 and Figure 17As shown, when the triggering component 200 obstructs the stopper 241 from performing the first movement, the lifting component 230 drives the stopper 241 to perform the second movement. The stopper 241 is also arranged to rotate about the second axis 1002. The second movement includes a first action of rotating about the first axis 1001 in the first direction 1010 and a second action of rotating about the second axis 1002 in the second direction 1020. When the obstructing portion 215 abuts against the stopping portion 243, the first lifting portion 232 abuts against the first abutting surface 2421 to drive the stopper 241 to perform the second movement. The second movement includes the first action and the second action. The first action and the second action are actions of rotating about different axes. When the stopper 241 rotates about two different axes, the stopper 241 rotates in two dimensions. The stopper 241 has at least two rotational degrees of freedom. The first action and the second action occur substantially synchronously. Combining the first action and the second action, it can be understood that the stopper 241 is flipping. Or rather, the flipping of the stopper 241, that is, the second movement of the stopper 241, can be split into the first action and the second action, while the first movement of the stopper 241 only includes the first action. In this way, when the triggering component 200 obstructs the stopper 241 from performing the first movement, the stopper 241 switches to perform the second movement to allow at least part of the lifting component 230 to be lifted. When the stopper 241 performs the second movement, the lifting component 230 drives the fastener 10 to move. It should be understood that in this embodiment, the first axis 1001 is a fixed axis, but when the rotation angle of the stopper 241 about the first axis 1001 is different, the position of the second axis 1002 will change with the position of the stopper 241. As long as the second movement includes actions of rotating about two different axes, the position of the axis is not limited here. In some embodiments, the second movement may also include actions of rotating about more axes.

[0062] When the triggering component 200 obstructs the stopper 241 from performing the first movement, the lifting component 230 can drive the stopper 241 to perform the second movement, so that the lifting component 230 can lift the fastener 10 normally for the following reasons.

[0063] The fastener driver 100 includes an elastic member 250. When the lifting assembly 230 exerts a first force F1 on the stopper 241 and the blocking portion 215 exerts a second force F2 on the stopper 241, the stopper 241 exerts a third force F3 on the elastic member 250 to perform a second movement. In other words, the compressive stress applied by the first lifting portion 232 and the blocking portion 215 to the stopper portion 243 is converted into elastic force by the elastic member 250. The force is transferred to the elastic member 250, and the elastic member 250 plays a role in relieving the force. During the force conversion process, the stopper 241 rotates about the second axis 1002 in the second direction 1020 to perform a second action. The second axis 1002 extends substantially along the length direction of the stopper 241. When the stopper 241 rotates about the second axis 1002, when observing the stopper 241 from the front-rear direction, the space occupied by the stopper portion 243 in the left-right direction decreases, and the lifting assembly 230 can move upward. When the stopper 241 performs the second action, the first force F1 and the second force F2 are gradually converted into the third force F3, and the deformation degree of the elastic member 250 gradually increases. As the stopper 241 performs the second action, the lifting assembly 230 is driven by the magazine elastic member and also drives the stopper 241 to perform a first action, and the lifting assembly 230 moves upward smoothly to lift the fastener 10 through the second lifting portion 233. The upward movement of the lifting assembly 230 and the second movement of the stopper 241 complement each other and are synchronized, and there is no sequence between them.

[0064] Such as Figure 18 And Figure 19As shown, after the stopper 241 performs the second movement, the elastic member 250 drives the stopper 241 to perform the third movement. When the second acting force F2 decreases to zero, the elastic member 250 drives the stopper 241 to perform the third movement. When the user lifts the fastener driver 100, the trigger assembly 200 moves forward to disengage from the first state and begins to enter the second state, and the contact area between the blocking portion 215 and the stopper portion 243 gradually decreases. Since the second acting force F2 acting on the stopper 241 decreases to zero, the force on the stopper 241 is no longer balanced, the elastic member 250 begins to restore its original shape, and the elastic potential energy stored in the elastic member 250 is converted into kinetic energy. The elastic member 250 exerts a reaction force F4 on the stopper 241 to drive the stopper 241 to perform the third movement. The third movement includes a third action of rotating about the second axis 1002 in the third direction 1030. The direction of the third action is opposite to that of the second action. The third movement also includes a first action of rotating about the first axis 1001 in the first direction 1010. After the stopper 241 performs the third movement, when observed in the front-rear direction, when the stopper portion 243 and the trigger portion 216 overlap in the left-right direction, the stopper portion 243 is located on the movement path of the trigger portion 216. The stopper portion 243 blocks the movement of the trigger assembly 200, the stopper 241 prohibits the trigger assembly 200 from switching to the first state, and the anti-double-shot assembly 240 enters the anti-double-shot state. The fastener driver 100 is smooth and convenient to use.

[0065] As Figure 20 and Figure 21As shown, the air defense and shooting component 240 includes a limiting portion 245 and a rotating shaft 246. The limiting portion 245 limits the amplitude of the second movement of the stopper 241. The limiting portion 245 is disposed at one end of the magazine 120 close to the guiding component 180 and on one side close to the triggering component 200. In this embodiment, the limiting portion 245 and the magazine 120 are integrally formed, saving costs. At least a part of the rotating shaft 246 is installed between the limiting portions 245. The limiting portion 245 includes a first limiting wall 2451 and a second limiting wall 2452, and the first limiting wall 2451 and the second limiting wall 2452 are oppositely disposed in the front-rear direction. The first limiting wall 2451 and the second limiting wall 2452 respectively include holes. The rotating shaft 246 passes through the holes of the first limiting wall 2451 and the second limiting wall 2452 to be installed on the limiting portion 245. In some embodiments, the rotating shaft 246 can also be installed on the limiting portion 245 by other means. The rotating shaft 246 is fixed relative to the limiting portion 245. The rotating shaft 246 is substantially parallel to the first axis 1001. The stopper 241 includes an intermediate portion 247 and a rotating portion 244. The intermediate portion 247 connects the rotating portion 244 and the stopping portion 243. The stopping portion 243 is bent upward relative to the intermediate portion 247, and the rotating portion 244 is bent downward relative to the intermediate portion 247. Compared with the stopping portion 243 and the intermediate portion 247, the rotating portion 244 is closer to the rotating shaft 246. The rotating portion 244 is movably sleeved on the rotating shaft 246 and is in clearance fit with the rotating shaft 246 to flip. The limiting portion 245 includes a receiving space 248, and the receiving space 248 is located between the first limiting wall 2451 and the second limiting wall 2452. The receiving space 248 can be an open or closed space. At least a part of the rotating portion 244 is received in the receiving space 248.

[0066] The length L2 of the receiving space 248 in the front-rear direction limits the amplitude of the second movement of the stopper 241. The length of the rotating portion 244 in the front-rear direction is L3. In the front-rear direction, the ratio L2 / L3 of the lengths of the receiving space 248 and the rotating portion 244 is greater than or equal to 1.2. The ratio of the lengths of the receiving space 248 and the rotating portion 244 in the front-rear direction is greater than 1.2. In this way, the length of the receiving space 248 is greater than the length of the rotating portion 244. The limiting portion 245 does not block the flipping of the stopper 241, and the stopper 241 has sufficient space to make the second movement. The angle by which the stopper 241 rotates around the second axis 1002 is relatively large. When observing the stopper 241 from the front-rear direction, the space occupied by the stopping portion 243 in the left-right direction can be reduced more, and the lifting component 230 can move upward a longer distance.

[0067] In some embodiments, the ratio of the length of the accommodation space 248 to the length of the rotating part 244 is greater than or equal to 1.2 and less than or equal to 3. In some embodiments, the ratio of the length of the accommodation space 248 to the length of the rotating part 244 is greater than or equal to 1.4 and less than or equal to 2.8. In this way, the accommodation space 248 not only provides enough space for the stopper 241 to perform the second action, but also prevents the stopper 241 from rotating too much, with a simple structure and low cost.

[0068] As Figures 21 to 23 shown, the elastic member 250 is disposed on the rotating shaft 246. The elastic member 250 includes a deforming part 251. When the elastic member 250 is compressed, the deforming part 251 deforms first. When the elastic member 250 restores its shape, the deforming part 251 first drives the stopper 241 to move. The stopper 241 includes a second abutting surface 2422. The deforming part 251 abuts against the second abutting surface 2422 to drive the stopper 241 to perform a third movement. At least a part of the second abutting surface 2422 is located on the side of the rotating shaft 246 close to the first lifting part 232 and away from the stopping part 243. In this embodiment, the second abutting surface 2422 is located at the lower left side of the rotating shaft 246. In this way, when the stopper 241 performs the first movement, the second movement and the third movement, the elastic member 250 can store or release energy. The second abutting surface 2422 is a bent surface and is recessed toward the rotating shaft 246. The second abutting surface 2422 includes a groove. The deforming part 251 abuts against the groove.

[0069] The elastic member 250 is a spring wire, and the spring wire is partially wound around the rotating shaft 246. The deforming part 251 includes a first deforming part 2511 and a second deforming part 2512, and the first deforming part 2511 and the second deforming part 2512 are respectively the two ends of the spring wire. The first deforming part 2511 extends substantially along the second straight line 102. The rotating shaft 246 extends substantially along the third straight line 103. When observing the fastener driver 100 from the up-down direction, the angle p between the second straight line 102 and the third straight line 103 is greater than 0 degree and less than or equal to 100 degrees. In some embodiments, the angle p between the second straight line 102 and the third straight line 103 is greater than or equal to 10 degrees and less than or equal to 50 degrees. In some embodiments, the angle p between the second straight line 102 and the third straight line 103 is greater than or equal to 20 degrees and less than or equal to 40 degrees. The angle p between the second straight line 102 and the third straight line 103 is greater than 0 degree and less than or equal to 100 degrees. In this way, the deforming part 251 can both receive the force of the stopper 241 and drive the stopper 241 to move. In some embodiments, the elastic member 250 can also be of other shapes or materials, as long as it can deform after receiving the force of the stopper 241 and can drive the stopper 241 to move when restoring its shape, which is not limited herein.

[0070] The elastic member 250 has an elastic force. The ratio of the elastic force to the mass of the stopper 241 is greater than 1 N / g and less than or equal to 10 N / g. In some embodiments, the ratio of the elastic force to the mass of the stopper 241 is greater than 1 N / g and less than or equal to 9 N / g, 8 N / g, 7 N / g, 6 N / g, 5 N / g, 4 N / g, 3 N / g, or 2 N / g. The ratio of the elastic force to the mass of the stopper 241 is greater than 1 N / g, so that the elastic member 250 can drive the stopper 241 to move. The ratio of the elastic force to the mass of the stopper 241 is less than or equal to 10 N / g, so that the stopper 241 can drive the elastic member 250 to deform under the drive of the lifting assembly 230.

[0071] When a preset number of fasteners 10 remain in the magazine 120, the stopper 241 flips to allow at least part of the lifting assembly 230 to lift. After the lifting assembly 230 lifts, the elastic member 250 drives the stopper 241 to flip so that the anti-double-fire assembly 240 enters the anti-double-fire state, reminding the user to replenish the fasteners 10. The fastener driver 100 is convenient, fast, and safe to use.

[0072] As Figures 24 to 29 shown, the fastener driver 100 includes a receiving portion 260 and a lighting device 270. The receiving portion 260 houses at least part of the lighting device 270, and the lighting device 270 is used for illumination and / or indication. The lighting device 270 includes a connecting portion 271, and at least part of the connecting portion 271 is movably received in the receiving portion 260. The connecting portion 271 is movable relative to the receiving portion 260, so that at least part of the lighting device 270 can move relative to the housing 110. The user can operate the lighting device 270 to move at least part of the lighting device 270, and the lighting device 270 can illuminate and indicate a larger range.

[0073] In some embodiments, the receiving portion 260 is provided on the housing 110. The lighting device 270 is generally used to illuminate the shooting area of the fastener 10. In this embodiment, the receiving portion 260 is partially provided on the transmission portion 112 and partially provided on the main housing 111. The connecting portion 271 is arranged to slide along the extending direction of the receiving portion 260. The receiving portion 260 is arranged substantially parallel to the extending direction of the main housing 111. The transmission portion 112 is relatively close to the guiding assembly 180, so that the lighting device 270 can more clearly illuminate the shooting area of the fastener 10. In some embodiments, the lighting device 270 can also be provided on the main housing 111, the transmission portion 112, the holding portion 113, the coupling portion 114, or the magazine 120, or can be provided at a combined position of any part of the housing 110.

[0074] The connecting portion 271 includes a slider 272. The receiving portion 260 includes a track 261, and the track 261 guides the movement of the slider 272. As Figures 24 to 26As shown, in this embodiment, the surface of the slider 272 has an arc. The slider 272 is spherical. The track 261 extends substantially parallel to the extension direction of the main housing 111 and is arranged inside the housing 110. The connecting portion 271 can slide in the front-back direction. The track 261 has a channel 262 that is closed along its length direction. The channel 262 includes an opening 263, and the opening 263 is open to the front. The inner surface of the channel 262 has an arc, and the inner surface of the track 261 is surrounded by a cylindrical shape. The slider 272 is received in the track 261, so that the light emitting device 270 can be received by sliding in the track 261. Any dimension of the cross section of the slider 272 is greater than any dimension of the cross section of the opening 263, so that the moving distance of the slider 272 is limited by the opening 263. In this embodiment, the diameter of the cross section of the slider 272 is greater than the diameter of the cross section of the opening 263. The slider 272 can move in the channel 262 but will not be separated from the channel 262 , so that the user can easily move the connecting portion 271 out of the accommodating portion 260 and put it into the accommodating portion 260 repeatedly.

[0075] The light-emitting device 270 includes a light-emitting portion 273, which can emit light. The light emitted by the light-emitting portion 273 can be light, or it can be light reflected by a special structure or coating. The light-emitting portion 273 is connected to the connecting portion 271. When the connecting portion 271 moves relative to the accommodating portion 260, the light-emitting portion 273 moves with the connecting portion 271. The light-emitting device 270 can be slidably accommodated in the accommodating portion 260. In this embodiment, the light-emitting portion 273 is rotatable relative to the connecting portion 271. The connecting portion 271 is slidable relative to the accommodating portion 260, and the light-emitting portion 273 is rotatable relative to the connecting portion 271. In this way, the light-emitting portion 273 can illuminate and indicate a larger range, and the angles for the user to illuminate and indicate are more, which is convenient to use. It should be noted that the rotation includes the rotation of the light-emitting portion 273 around itself (rotation), and also includes the rotation (revolution) of the light-emitting portion 273 relative to the connecting portion 271, and the rotation method is not limited here.

[0076] The light-emitting device 270 includes a flexible rod 274. The light-emitting portion 273 is connected to the connecting portion 271 through the flexible rod 274. The flexible rod 274 supports the light-emitting portion 273. In this way, the user applies force to the flexible rod 274 by operating the light-emitting portion 273 to deform the flexible rod 274, thereby adjusting and fixing the position of the light-emitting portion 273. The flexible rod 274 has a certain rigidity, and the diameter of the cross section of the flexible rod 274 is smaller than the diameter of the cross section of the opening 263. In this way, the flexible rod 274 can pass through the opening 263 and be received in the receiving portion 260, with a compact structure and convenient storage. The flexible rod 274 can not only change the lighting range and angle by deformation, but also provide support for the light-emitting portion 273 to stabilize the light source, and can also be received in the receiving portion 260, which is convenient to use.

[0077] At least a part of the accommodating part 260 is arranged above the trigger 1131, and the position of the accommodating part 260 is at the upper part of the fastener driver 100. The length of the accommodating part 260 in the front-rear direction can be designed to be relatively long. The storage position of the light-emitting device 270 is at the upper part of the fastener driver 100, and the distance that the light-emitting device 270 can move back and forth relative to the housing 110 is relatively long. The light-emitting device 270 has a large illumination and indication range, high space utilization rate, and beautiful appearance.

[0078] As Figures 27 to 29 shown, in some embodiments, the accommodating part 260 is arranged substantially parallel to the extending direction of the transmission part 112. The connecting part 271 slides up and down in the accommodating part 260. The slider 272 is polygonal. The track 261 extends substantially parallel to the extending direction of the transmission part 112 and is arranged outside the housing 110. The track 261 has a semi-open channel 262 along its length direction. The channel 262 includes an opening 263, and the opening 263 opens forward and upward. The opening 263 is C-shaped. The inner surface of the track 261 is movably engaged with the connecting part 271 so that the connecting part 271 can slide in the track 261 and can also stop at a certain position on one track 261. In some embodiments, the light-emitting part 273 includes a pressing part 275. When the user presses the pressing part 275, the connecting part 271 can slide relative to the accommodating part 260, and when the user releases the pressing part 275, the connecting part 271 is fixed relative to the accommodating part 260.

[0079] The light-emitting part 273 includes a light-emitting diode 276 and a fixing shell 277. The light-emitting diode 276 is small in size, easy to store, and low in manufacturing cost. The fixing shell 277 fixes the light-emitting diode 276 and prevents the light-emitting diode 276 from being damaged. The fixing shell 277 is formed with ribs, and the ribs clamp the light-emitting diode 276. When the user operates the light-emitting part 273, pinch the fixing shell 277 with fingers and drag the light-emitting part 273, which is convenient to use.

[0080] As Figures 30 to 31 shown, in some embodiments, there are multiple light-emitting devices 270, such as 2 or 3. The positions of the light-emitting devices 270 are distributed around the ejection position of the fastener 10. The light-emitting devices 270 can be movable or fixed. Each light-emitting device 270 can be individually controlled to be turned on and off, or can be individually controlled in brightness. In different usage environments, the user can choose to turn on different light-emitting devices 270 to obtain a suitable illumination brightness and angle. The user can also adjust the position of the shadow generated by the light irradiation by individually adjusting the brightness of one light-emitting device 270. The user can clearly see the ejection position of the fastener 10, and the fastener driver 100 is convenient to use.

[0081] As Figures 32 to 33As shown, in some embodiments, the transmission mechanism 140 includes a driving wheel 141 that drives the striker 131 to move. The transmission mechanism 140 further includes a first bevel gear 142 and a second bevel gear 143. The motor 160 drives the first bevel gear 142. The first bevel gear 142 and the second bevel gear 143 are meshed, and the first bevel gear 142 drives the second bevel gear 143 to rotate. The second bevel gear 143 drives the driving wheel 141 to rotate through a shaft. The rotation axes of the driving wheel 141 and the second bevel gear 143 are perpendicular to the rotation axis of the first bevel gear 142. The driving wheel 141, the first bevel gear 142, and the second bevel gear 143 are substantially located below the striker 131. The distance between the first cylinder 151 and the motor 160 in the left-right direction is less than or equal to 15 mm. In some embodiments, the distance between the first cylinder 151 and the motor 160 in the left-right direction is less than or equal to 14 mm, 13 mm, 12 mm, 11 mm, or 10 mm.

[0082] The present application also provides a fastener driver 300 according to another embodiment. The structure of the fastener driver 300 is substantially the same as that of the fastener driver 300. The fastener driver 300 includes a magazine 340, a housing 310, and a guiding assembly 380.

[0083] As Figures 34 to 37 shown, the fastener driver 300 further includes a display device 330. The display device 330 displays visual information to the user by emitting light. The user observes the display device 330 with eyes to obtain visual information. The display device 330 extends substantially along the extension direction a. The display device 330 includes a light-emitting portion 311, and the length of the light-emitting portion 311 in the extension direction is greater than or equal to 30 mm. The length L4 of the light-emitting portion 311 in the extension direction a is greater than or equal to 50 mm. The length L4 of the light-emitting portion 311 in the extension direction a is long, so that the user can clearly observe the information displayed by the display device 330. The types of information that the display device 330 can display are rich and there is a lot of information that can be displayed. In some embodiments, the length L4 of the light-emitting portion 311 in the extension direction a is greater than or equal to 30 mm and less than or equal to 350 mm. In some embodiments, the length L4 of the light-emitting portion 311 in the extension direction a is greater than or equal to 40 mm and less than or equal to 300 mm. In some embodiments, the length L4 of the light-emitting portion 311 in the extension direction a is greater than or equal to 50 mm and less than or equal to 250 mm. In some embodiments, the length L4 of the light-emitting portion 311 in the extension direction a is greater than or equal to 60 mm and less than or equal to 250 mm. In some embodiments, the length L4 of the light-emitting portion 311 in the extension direction a is greater than or equal to 70 mm, 80 mm, 90 mm, 100 mm, 110 mm, 120 mm, 130 mm, or 140 mm.

[0084] The display device 330 has a cross-sectional area in a vertical cross-section in the extension direction a. The cross-sectional area is greater than or equal to 0.2 cm 2 and less than or equal to 30 cm 2 . In some embodiments, the cross-sectional area is greater than or equal to 0.5 cm 2 and less than or equal to 25 cm 2 . In some embodiments, the cross-sectional area is greater than or equal to 1 cm 2 and less than or equal to 20 cm 2 . In some embodiments, the cross-sectional area is approximately 2 cm 2 , 3 cm 2 , 4 cm 2 , 5 cm 2 , 6 cm 2 , 7 cm 2 , 8 cm 2 , 9 cm 2 , 10 cm 2 , or 15 cm 2 .

[0085] The fastener driver 300 further includes a sensing device 320. The sensing device 320 senses the number of fasteners 10. The display device 330 displays visual information in response to the number of fasteners 10 sensed by the sensing device 320. The visual information displayed by the display device 330 includes lighting, extinguishing, flashing, color change, digital, letter, or symbol display, etc. The user can learn information such as the remaining number of fasteners through the visual information displayed by the display device 330. The sensing device 320 extends substantially along the extension direction a. The length L5 of the sensing device 320 in the extension direction a is greater than or equal to 50 mm. The longer the length L5 of the sensing device 320 in the extension direction a, the more fasteners 10 the sensing device 320 can sense and the larger the sensing range. In some embodiments, the length L5 of the sensing device 320 in the extension direction a is greater than or equal to 30 mm and less than or equal to 350 mm. In some embodiments, the length L5 of the sensing device 320 in the extension direction a is greater than or equal to 40 mm and less than or equal to 300 mm. In some embodiments, the length L5 of the sensing device 320 in the extension direction a is greater than or equal to 50 mm and less than or equal to 250 mm. In some embodiments, the length L5 of the sensing device 320 in the extension direction a is greater than or equal to 60 mm and less than or equal to 250 mm. In some embodiments, the length L5 of the sensing device 320 in the extension direction a is greater than or equal to 70 mm, 80 mm, 90 mm, 100 mm, 110 mm, 120 mm, 130 mm, or 140 mm.

[0086] The display device 330 has a first mode and a second mode. The display device 330 switches between the first mode and the second mode according to the number of fasteners 10 sensed by the sensing device 320. In the first mode, the light-emitting part 311 emits light. In the second mode, the light-emitting part 311 is extinguished. The light-emitting part 311 includes a plurality of lamp beads 312. The plurality of lamp beads 312 are arranged along the extending direction a. The plurality of lamp beads 312 are arranged along the extending direction of the magazine 340, with a compact and beautiful structure. In some embodiments, in the first mode, the light-emitting part 311 emits green light. In the second mode, the light-emitting part 311 emits red light. In some embodiments, in the first mode, the display device 330 displays a first number. In the second mode, the display device 330 displays a second number.

[0087] The fastener driver 300 includes a controller 221. The sensing device 320 includes a transmitting part 321 and a receiving part 322. The transmitting part 321 is configured to transmit a signal. The receiving part 322 is configured to receive the signal emitted by the transmitting part 321. When the receiving part 322 receives the signal, the controller 221 controls the display device 330 to display corresponding visual information. The fastener 10 is disposed between the transmitting part 321 and the receiving part 322. The fastener 10 can block the transmission of the signal between the transmitting part 321 and the receiving part 322. When the transmission of the signal between the transmitting part 321 and the receiving part 322 is blocked by the fastener 10, the receiving part 322 cannot receive the signal emitted by the transmitting part 321.

[0088] The display device 330 is disposed on the magazine 340. The sensing device 320 is disposed on the magazine 340. Both the display device 330 and the sensing device 320 are disposed on the magazine 340, with a compact structure, facilitating the sensing of the number of fasteners 10 and the display of visual information. The display device 330 and at least a part of the sensing device 320 are respectively located on both sides of the fastener 10. In this embodiment, the display device 330 and at least a part of the sensing device 320 are respectively located on the left and right sides of the fastener 10. The display device 330 and the transmitting part 321 are respectively located on the left and right sides of the fastener 10. In some embodiments, the display device 330 and at least a part of the sensing device 320 may also be respectively located on the upper and lower or front and back sides of the fastener 10.

[0089] In this embodiment, the receiving unit 322 and the display device 330 are disposed on the same side of the magazine 340. The fastener 10 is disposed between the whole formed by the receiving unit 322 and the display device 330 and the transmitting unit 321. The fastener 10 is on the signal transmission path of the signal emitted by the transmitting unit 321. The signal emitted by the transmitting unit 321 is an optical signal, such as infrared rays. In some embodiments, the signal emitted by the transmitting unit 321 may also be a magnetic signal, an electrical signal, or the like. When the fasteners 10 in the magazine 340 fill the magazine 340, the fasteners 10 are on the signal transmission path of the signal emitted by the transmitting unit 321, and the fasteners 10 block all signals transmitted by the transmitting unit 321 along the extension direction a. The display device 330 is in the first mode, and the light emitting part 311 emits light. All the light emitting parts 311 along the extension direction a emit light, so that the user can know that the number of fasteners 10 is sufficient and there is no need to replenish the fasteners 10. When the fasteners 10 in the magazine 340 are gradually consumed, the fasteners 10 move upward. As the fasteners 10 move upward, the accommodating positions corresponding to the fasteners 10 at the lower part of the magazine 340 become vacant, and the signal transmission path originally blocked by the fasteners 10 becomes unobstructed. Some receiving parts 322 at the lower part of the magazine 340 receive the signals emitted by the transmitting unit 321. The controller 221 controls the light emitting diodes 312 corresponding to the vacant positions of the fasteners 10 to go out, and the display device 330 switches to the second mode. Along the extension direction a, as more and more light emitting diodes 312 start to go out from the lower part of the magazine 340, the user can know that the number of fasteners 10 is gradually decreasing and the fasteners 10 can be replenished. By sensing the number of fasteners 10 through the sensing device 320 and displaying the number information of the fasteners 10 to the user through the display device 330, the user can easily know the number of fasteners 10 in various usage environments, which is convenient to use.

[0090] The above embodiments only illustrate the basic principles and features of the present application. The present application is not limited by the above embodiments. Without departing from the spirit and scope of the present application, various changes and modifications can be made to the present application, and these changes and modifications all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A fastener driver, comprising: A striking assembly including a firing pin configured to strike a fastener; A magazine for accommodating the fastener; Characterized in that the fastener driver further comprises: A trigger assembly for a user to operate to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; A lifting assembly at least partially movably disposed in the magazine to drive the fastener to move in the magazine; An anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; When the trigger assembly obstructs the stopper from performing a first movement, the lifting assembly drives the stopper to perform a second movement.

2. The fastener driver according to claim 1, wherein, The first movement is a first action of rotating about a first axis in a first direction, and the second movement includes the first action of rotating about the first axis in the first direction and a second action of rotating about a second axis in a second direction.

3. The fastener driver according to claim 1, wherein The lifting assembly includes a first lifting portion, the stopper includes a first abutting surface, and the first lifting portion abuts against the first abutting surface to drive the stopper to perform the first movement or the second movement.

4. The fastener driver according to claim 1, characterized in that, When the stopper performs the second movement, the lifting assembly drives the fastener to move.

5. The fastener driver according to claim 1, wherein, At least part of the trigger assembly is configured to move along a first straight line, and the trigger assembly includes an obstruction portion located in the circumferential direction of the first straight line and a trigger portion extending substantially perpendicular to the first straight line.

6. The fastener driver according to claim 5, wherein, It further includes an elastic member. When the lifting assembly applies a first acting force to the stopper and the obstruction portion applies a second acting force to the stopper, the stopper applies a third acting force to the elastic member to perform the second movement.

7. The fastener driver according to claim 6, characterized in that, When the second acting force decreases to zero, the elastic member drives the stopper to perform a third movement.

8. The fastener driver according to claim 7, wherein, The first movement is a first action of rotating about a first axis in a first direction, the second movement includes the first action of rotating about the first axis in the first direction and a second action of rotating about a second axis in a second direction, and the third movement includes the first action of rotating about the first axis in the first direction and a third action of rotating about the second axis in a third direction.

9. The fastener driver according to claim 6, wherein, The elastic member has an elastic force, and the ratio of the elastic force to the mass of the stopper is greater than 1 N / g and less than or equal to 10 N / g.

10. The fastener driver according to claim 1, wherein The trigger assembly includes a receiving chamber that receives at least part of a sensing device that enables the trigger assembly to switch between the first state and the second state.

11. The fastener driver according to claim 1, characterized in that, The anti-dry-fire assembly includes a limiting portion that limits the amplitude of the second movement of the stopper.

12. The fastener driver according to claim 11, wherein The limiting portion includes a receiving space, the stopper includes a rotating portion received in the receiving space, and the length of the receiving space in the front-back direction limits the amplitude of the second movement of the stopper. In the front-back direction, the ratio of the length of the receiving space to the length of the rotating portion is greater than or equal to 1.

2.

13. The fastener driver according to claim 11, wherein, The limiting portion is disposed on the magazine.

14. A fastener driver, comprising: A striking assembly, including a firing pin configured to strike a fastener; A magazine for accommodating the fastener; Characterized in that the fastener driver further includes: A trigger assembly for user operation to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; A lifting assembly at least partially movably disposed in the magazine to drive the fastener to move in the magazine; An anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; When a preset number of the fasteners remain in the magazine, the lifting assembly drives the stopper to move, the movement including an action of rotating about a first axis and an action of rotating about a second axis.

15. A fastener driver, including: A striking assembly, including a firing pin configured to strike a fastener; A magazine for accommodating the fastener; Characterized in that the fastener driver further includes: A trigger assembly for user operation to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; A lifting assembly at least partially movably disposed in the magazine to drive the fastener to move in the magazine; An anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; When a preset number of the fasteners remain in the magazine, the stopper flips to allow at least part of the lifting assembly to lift.

16. A fastener driver, including: A striking assembly, including a firing pin configured to strike a fastener; A magazine for accommodating the fastener; Characterized in that the fastener driver further includes: A trigger assembly for user operation to switch between a first state allowing the firing pin to strike the fastener and a second state prohibiting the firing pin from striking the fastener; An anti-dry-fire assembly having an anti-dry-fire state, the anti-dry-fire assembly including a stopper, in the anti-dry-fire state, the stopper prohibits the trigger assembly from switching to the first state; A lifting assembly at least partially movably disposed in the magazine to drive the fastener to move in the magazine, the lifting assembly being configured to drive the stopper to switch to the anti-dry-fire state; An elastic member in contact with the stopper; When the trigger assembly is in the first state and the trigger assembly obstructs the stopper from switching to the anti-dry-fire state, the elastic member absorbs energy, and when the trigger assembly switches to the second state, the elastic member releases the energy to drive the stopper to switch to the anti-dry-fire state.

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