Fastener driver and nail gun

Abstract

Disclosed in the present application is a fastener driver, comprising: a trigger assembly operable by a user to switch between a first state in which a striker is allowed to strike a fastener and a second state in which the striker is prohibited from striking the fastener; a lifting assembly, which is at least partially movably arranged in a magazine so as to drive the fastener to move in the magazine; and a misfire prevention assembly, which has a misfire prevention state, wherein the misfire prevention assembly comprises a stopper, which prohibits the trigger assembly from switching to the first state when in the misfire prevention state; and when the trigger assembly prevents the stopper from performing a first motion, the lifting assembly drives the stopper to perform a second motion.

Description

Fastener Drivers & Nail Guns

[0001] This application claims priority to the Chinese patent application with application number 202311809662.9 filed with the China Patent Office on December 25, 2023, and claims priority to the Chinese patent application with application number 202311804837.7 filed with the China Patent Office on December 25, 2023, and claims priority to the Chinese patent application with application number 202323566807.5 filed with the China Patent Office on December 25, 2023, and claims priority to the Chinese patent application with application number 202410320585.9 filed with the China Patent Office on March 20, 2024, and claims priority to the Chinese patent application with application number 202411779342.8 filed with the China Patent Office on December 5, 2024. The entire contents of the above applications are incorporated into this application by reference. Technical Field

[0002] The present application relates to a tool, in particular to a fastener driver and a nail gun. Background Art

[0003] A fastener driver, as known in the related art, is commonly used to secure workpieces. Users fire fasteners into the workpiece to secure it. Typically, users need to install multiple fasteners in the fastener driver's magazine to ensure continuous use. When a small number of fasteners remain in the magazine, the fasteners and firing pins in these fastener drivers may not fit properly, impacting the user experience.

[0004] This section provides background information related to the present application which is not necessarily prior art. Summary of the Invention

[0005] An object of the present application is to solve or at least alleviate part or all of the above problems.The present application provides a fastener driver that is convenient to use.

[0006] This application adopts the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a fastener driver, comprising: a striking assembly, comprising a firing pin configured to strike a fastener; a magazine, accommodating the fastener; 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-runaway assembly, having an anti-runaway state, the anti-runaway assembly comprising a stop member, in which the stop member prohibits the trigger assembly from switching to the first state; when the trigger assembly prevents the stop member from performing the first movement, the lifting assembly drives the stop member to perform the second movement.

[0008] In some embodiments, the first motion is a first motion of rotating about a first axis in a first direction, and the second motion includes a first motion of rotating about the first axis in a first direction and a second motion of rotating about a second axis in a second direction.

[0009] In some embodiments, the lifting assembly includes a first lifting portion, the stopper includes a first abutting surface, and the first lifting portion and the first abutting surface abut against each other to drive the stopper to perform the first movement or the second movement.

[0010] In some embodiments, when the stopper performs the second movement, the lifting assembly drives the fastener to move.

[0011] In some embodiments, at least a portion of the trigger assembly is configured to move along a first straight line, and the trigger assembly includes an obstruction portion located in a circumferential direction of the first straight line and a trigger portion extending substantially perpendicular to the first straight line.

[0012] In some embodiments, an elastic member is further included, and when the lifting assembly applies a first force to the stopper and the blocking portion applies a second force to the stopper, the stopper applies a third force to the elastic member to perform the second movement.

[0013] In some embodiments, when the second force decreases to zero, the elastic member drives the stopper to perform a third movement.

[0014] In some embodiments, the first movement is a first movement of rotating in a first direction around a first axis, the second movement includes a first movement of rotating in a first direction around the first axis and a second movement of rotating in a second direction around the second axis, and the third movement includes a first movement of rotating in a first direction around the first axis and a third movement of rotating in a third direction around the second axis.

[0015] In some embodiments, the elastic member has an elastic force, and a 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.

[0016] In some embodiments, the trigger assembly includes a receiving compartment that receives at least a portion of the sensing device that switches the trigger assembly between the first state and the second state.

[0017] In some embodiments, the anti-runaway assembly includes a limiting portion for limiting the amplitude of the second movement of the stopper.

[0018] In some embodiments, the limiting portion includes an accommodating space, the stopper includes a rotating portion accommodated in the accommodating space, and the length of the accommodating space in the front-to-back direction limits the amplitude of the second movement of the stopper.

[0019] In some embodiments, in the front-to-rear direction, a ratio of the length of the accommodating space to the length of the rotating portion is greater than or equal to 1.2.

[0020] In some embodiments, the limiting portion is provided on the magazine.

[0021] A fastener driver comprises: a striking assembly including a firing pin configured to strike a fastener; a magazine accommodating the fasteners; 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-runaway assembly having an anti-runaway state, the anti-runaway assembly including a stop member, in which the stop member 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 stop member to move, and the movement includes a rotation around a first axis and a rotation around a second axis.

[0022] In some embodiments, when a predetermined number of fasteners remain in the magazine, the stop member flips over to allow at least a portion of the lift assembly to be raised.

[0023] A fastener driver comprises: a striking assembly comprising a firing pin configured to strike the fastener; a magazine accommodating the fastener; 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; an anti-runaway assembly having an anti-runaway state, the anti-runaway assembly comprising a stopper, in which 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-runaway state; an elastic member abutting the stopper; when the trigger assembly is in the first state and the trigger assembly prevents the stopper from switching to the anti-runaway 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-runaway state.

[0024] In some embodiments, at least a portion of the trigger assembly is configured to move along a first straight line, and the trigger assembly includes an obstruction portion located in a circumferential direction of the first straight line and a trigger portion extending substantially perpendicular to the first straight line.

[0025] In some embodiments, the trigger assembly includes a receiving compartment that receives at least a portion of the sensing device that switches the trigger assembly between the first state and the second state.

[0026] In some embodiments, the elastic member has an elastic force, and a 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.

[0027] In the second aspect, an embodiment of the present application provides a nail gun, comprising: a shell; a motor, arranged in the shell; a firing assembly, arranged to move from an initial position to a firing position to drive a nail into a workpiece within a nailing cycle, and move from the firing position to the initial position; at least one light-emitting device, arranged in the shell; a drive circuit, at least controlling the power supply to the motor; a first control circuit, configured to independently control the light-emitting device at least when the motor is not started; a light-emitting control switch, connected to the first control circuit; a controller, at least controlling the operation of the motor; the controller is configured to: receive a signal that the motor is powered on and the light-emitting control switch is triggered, and control the motor to start.

[0028] In some embodiments, a host switch is further included, and the host switch at least controls power on of the controller.

[0029] In some embodiments, a push rod switch is further included. The push rod switch is arranged at the lower end of the firing assembly. When the push rod switch abuts against the workpiece, the push rod switch is triggered.

[0030] In some embodiments, when the host switch is triggered and the push rod switch is triggered, the drive circuit is connected and the motor is powered.

[0031] In some embodiments, the lighting control switch, the host switch, and the push rod switch are all triggered to control the motor to start.

[0032] In some embodiments, a detection circuit is further included, and the detection circuit is used to detect whether the light control switch is triggered.

[0033] In some embodiments, the detection circuit generates a corresponding signal to the controller when the light control switch is triggered.

[0034] In some embodiments, the controller is configured to control the start-up of the motor according to states of the driving circuit and the detection circuit.

[0035] In some embodiments, the motor is not necessarily powered when the lighting device is illuminated.

[0036] In some embodiments, the first control circuit and the driving circuit are disposed on the same circuit board.

[0037] In some embodiments, the first control circuit and the driving circuit are disposed on different circuit boards.

[0038] In some embodiments, the nail gun further includes a parameter detection unit configured to detect operating parameters of the motor and / or battery parameters of a battery pack that powers the nail gun.

[0039] In some embodiments, the controller is configured to at least control the light emitting device to change the light emission mode to issue an alarm prompt when it is determined that the nail gun has malfunctioned based on the working parameters and / or battery parameters.

[0040] In some embodiments, the light-emitting device is configured to provide an alarm prompt through at least one of the number of light-emitting devices, light-emitting color, light-emitting frequency, number of flashes, brightness level, and content of the light-emitting display.

[0041] In some embodiments, the housing is further formed with a handle portion for the user to hold, and the lighting control switch and the host switch are respectively arranged in the handle portion, and the lighting control switch and the host switch are arranged adjacent to each other.

[0042] A nail gun comprises: a housing; a motor disposed within the housing; a firing assembly configured to move from an initial position to a firing position within a nailing cycle to drive a nail into a workpiece, and to move from the firing position to the initial position; at least one light-emitting device disposed in the housing; a drive circuit configured to at least control the power supply to the motor; a first control circuit configured to independently control the light-emitting device at least when the motor is not started; a controller configured to at least control the operation of the motor; a detection circuit connected to the first control circuit and the controller; and the controller configured to control the start-up of the motor according to the states of the drive circuit and the detection circuit.

[0043] A nail gun comprises: a housing; a motor disposed in the housing; a firing assembly configured to move from an initial position to a firing position within a nailing cycle to drive a nail into a workpiece, and to move from the firing position to the initial position; at least one light-emitting device disposed in the housing; a light-emitting control switch configured to at least control the state of the light-emitting device; a controller configured to at least control the operation of the motor; a host switch configured to at least control the power supply to the controller; a push rod switch disposed at the lower end of the firing assembly, the push rod switch being triggered when the push rod switch abuts against the workpiece; and the controller being configured to control the motor to start upon receiving a signal that the light-emitting control switch, the host switch, and the push rod switch are all triggered.

[0044] In some embodiments, the system further includes a first control circuit configured to independently control the operation of the lighting device at least when the motor is not started.

[0045] In some embodiments, the light control switch is connected to a first control circuit, and the first control circuit is connected to a controller.

[0046] In some embodiments, the controller is configured to control the motor to start when receiving a signal that the lighting control switch, the host switch, and the push rod switch are all triggered and remain in the triggered state.

[0047] In a third aspect, an embodiment of the present application provides a fastener driver, comprising: a transmission mechanism, driving a striking assembly to move, the striking assembly including a firing pin; a receiving portion; a light-emitting device, comprising a connecting portion, the connecting portion being at least partially movably received in the receiving portion.

[0048] In some embodiments, the connecting portion includes a slider, and the receiving portion includes a track for guiding the movement of the slider.

[0049] In some embodiments, the light emitting device includes a light emitting portion, and when the connecting portion moves relative to the receiving portion, the light emitting portion moves along with the connecting portion.

[0050] In some embodiments, the light emitting portion is rotatable relative to the connecting portion.

[0051] In some embodiments, the light emitting device includes a light emitting portion and a flexible rod, wherein the light emitting portion is connected to the connecting portion through the flexible rod.

[0052] In some embodiments, the fastener driver includes a trigger configured to control the start and stop of the fastener driver, and at least a portion of the receiving portion is disposed above the trigger.

[0053] In some embodiments, the fastener driver includes a housing, the housing including a transmission portion for accommodating at least a portion of the transmission mechanism, and the accommodating portion is disposed on the transmission portion.

[0054] In some embodiments, the accommodating portion is arranged substantially parallel to an extension direction of the transmission housing.

[0055] In some embodiments, the connecting portion is configured to slide along an extension direction of the receiving portion.

[0056] In some embodiments, the light emitting device comprises a light emitting diode.

[0057] In a fourth aspect, an embodiment of the present application provides a fastener driver, comprising: a striking assembly, comprising a firing pin and a piston connected to the firing pin; a transmission mechanism, driving the striking assembly to move; a magazine, configured to accommodate fasteners; a display device, configured to display visual information to a user by emitting light; the display device basically extends along an extension direction, and the display device includes a light-emitting portion, and the length of the light-emitting portion in the extension direction is greater than or equal to 30 mm.

[0058] In some embodiments, the invention further includes a sensing device configured to sense the number of fasteners, and the display device displays visual information in response to the number of fasteners sensed by the sensing device.

[0059] In some embodiments, the display device has a first mode and a second mode, and the display device switches between the first mode and the second mode according to the number of fasteners sensed by the sensing device.

[0060] In some embodiments, in the first mode, the light emitting portion emits light, and in the second mode, the light emitting portion is off.

[0061] In some embodiments, a controller is further included, and the sensing device includes a transmitting unit configured to transmit signals, and a receiving unit configured to receive signals emitted by the transmitting unit. When the receiving unit receives the signal, the controller controls the display device to display visual information.

[0062] In some embodiments, the display device is disposed on the magazine.

[0063] In some embodiments, the sensing device is provided on the magazine.

[0064] In some embodiments, the display device and at least part of the sensing device are located on two sides of the fastener, respectively.

[0065] In some embodiments, the display device includes a plurality of lamp beads, and the plurality of lamp beads are arranged along an extension direction.

[0066] A fastener driver comprises: a striking assembly including a firing pin and a piston connected to the firing pin; a transmission mechanism for driving the striking assembly to move; a magazine configured to accommodate fasteners, the magazine extending substantially along an extension direction; and a display device for displaying visual information to a user by emitting light, the display device being disposed on the magazine, and a length of the display device in the extension direction being greater than or equal to 30 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] FIG1 is a perspective view of a fastener driver according to one embodiment of the present application;

[0068] FIG2 is a top view of the fastener driver of FIG1 ;

[0069] FIG3 is a cross-sectional view of the fastener driver of FIG1 along line x1;

[0070] FIG4 is an enlarged view of the trigger assembly and extension of the fastener driver of FIG3;

[0071] FIG5 is a right side view of the fastener driver of FIG1 with the housing removed;

[0072] FIG6 is a perspective view of the fastener driver of FIG5;

[0073] 7 is a perspective view of the firing pin, fastener, second guide, trigger assembly, lift assembly, and portion of the runaway prevention assembly of the fastener driver of FIG. 1 ;

[0074] 8 is a perspective view of the firing pin, fastener, second guide, trigger assembly, lift assembly, and portion of the runaway prevention assembly of the fastener driver of FIG. 1 from another perspective;

[0075] 9 is a right side elevational view of the trigger assembly, lift assembly, portion of the runaway protection assembly, and portion of the magazine of the fastener driver of FIG. 1 ;

[0076] FIG10 is a cross-sectional view of the fastener driver of FIG9 along line x2;

[0077] FIG11 is a cross-sectional view of the fastener driver of FIG9 along line x3;

[0078] FIG12 is a perspective view of the lift assembly of the fastener driver of FIG1;

[0079] 13 is a perspective view of the lift assembly, trigger assembly and portion of the anti-runaway assembly of the fastener driver of FIG. 1 ;

[0080] 14 is a right side view of the trigger assembly, the stopper and the fastener of the fastener driver in FIG. 1 , with the trigger assembly in the first state and the stopper performing a first movement;

[0081] 15 is a rear view of the trigger assembly, the stop member, the partially lifted assembly, and the fastener of the fastener driver of FIG. 1 , with the trigger assembly in the first state and the stop member performing a first movement;

[0082] 16 is a right side view of the trigger assembly, the stopper and the fastener of the fastener driver of FIG. 1 , with the trigger assembly in the first state and the stopper performing a second movement;

[0083] 17 is a rear view of the trigger assembly, the stop member, the partially lifted assembly, and the fastener of the fastener driver of FIG. 1 , with the trigger assembly in the first state and the stop member performing a second movement;

[0084] 18 is a right side view of the trigger assembly, the stopper and the fastener of the fastener driver in FIG. 1 , with the trigger assembly in the second state and the stopper performing a third movement;

[0085] 19 is a rear view of the trigger assembly, the stop member, the partially lifted assembly, and the fastener of the fastener driver of FIG. 1 , with the trigger assembly in the second state and the stop member performing a third movement;

[0086] FIG20 is an enlarged view of the anti-runaway assembly of the fastener driver of FIG1 ;

[0087] FIG21 is an enlarged view of the stopper, the rotating portion, and the elastic member of the fastener driver of FIG20;

[0088] FIG22 is a perspective view of a stopper, a rotating shaft, and an elastic member of the fastener driver of FIG1 ;

[0089] 23 is an exploded view of the trigger assembly and a portion of the anti-runaway assembly of the fastener driver of FIG. 1 ;

[0090] FIG24 is a perspective view of a fastener driver according to another embodiment of the present application;

[0091] FIG25 is an enlarged view of the light emitting device of the fastener driver of FIG24 in one position;

[0092] FIG26 is an enlarged view of the light emitting device of the fastener driver of FIG24 in another position;

[0093] FIG27 is a perspective view of another embodiment of the fastener driver of FIG24;

[0094] FIG28 is an enlarged view of the light emitting device and the receiving portion of the fastener driver of FIG27;

[0095] FIG29 is a perspective view of the light emitting device of the fastener driver of FIG27;

[0096] FIG30 is an angled perspective view of another embodiment of the fastener driver of FIG24;

[0097] FIG31 is a perspective view of the fastener driver of FIG30 from another angle;

[0098] 32 is a front view of the first cylinder, transmission mechanism and motor of another embodiment of the fastener driver of FIG. 1 ;

[0099] FIG33 is a perspective view of the fastener driver of FIG32;

[0100] FIG34 is a right side view of a fastener driver according to another embodiment of the present invention;

[0101] FIG35 is a perspective view of the fastener driver of FIG34 with a portion of the housing and magazine removed;

[0102] FIG36 is a front view of the display device, sensing device and fastener of the fastener driver of FIG34;

[0103] FIG37 is an enlarged view of the display device, sensing device and fastener of the fastener driver of FIG36;

[0104] FIG38 is a perspective view of a nail gun according to an embodiment of the present application;

[0105] FIG39 is a cross-sectional view of the nail gun in FIG38;

[0106] FIG40 is a schematic diagram of the internal structure of the nail gun in FIG38 in the initial position;

[0107] FIG41 is a schematic diagram of the internal structure of the nail gun in FIG38 in the firing position;

[0108] FIG42 is a perspective schematic diagram of the driving wheel of the nail gun in FIG38;

[0109] FIG43 is a perspective view of the nail gun from another perspective;

[0110] FIG44 is a circuit diagram of a nail gun according to an embodiment;

[0111] FIG45 is another circuit schematic diagram of a nail gun according to an embodiment;

[0112] FIG46 is a third circuit schematic diagram of a nail gun according to an embodiment;

[0113] FIG47 is a fourth circuit schematic diagram of a nail gun according to an embodiment;

[0114] FIG58 is a fifth circuit schematic diagram of a nail gun according to an embodiment;

[0115] FIG49 is a cross-sectional view of a nail gun according to an embodiment;

[0116] FIG. 50 is a circuit diagram of a light emitting device control circuit in one embodiment. DETAILED DESCRIPTION

[0117] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0118] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0119] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0120] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0121] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, %, 1% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, degree, 1 degree or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0122] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0123] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0124] In this application, the terms "controller," "processor," "central processing unit," "CPU," and "MCU" are used interchangeably. Where a unit "controller," "processor," "central processing unit," "CPU," or "MCU" is used to perform a particular function, unless otherwise specified, the function may be performed by a single unit or multiple units.

[0125] In this application, the terms "device", "module" or "unit" can be implemented in the form of hardware or software to achieve specific functions.

[0126] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0127] The technical solution of the present application will be further explained below with reference to the accompanying drawings and through specific implementation methods.

[0128] This embodiment provides a fastener driver 100. As shown in Figures 1 and 2, 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 dual-cylinder fastener driver, a pre-inflated fastener driver, a non-pre-inflated fastener driver, a spring-loaded fastener driver, etc., without limitation herein. The fastener driver 100 is capable of generating an impact force on a fastener 10, thereby driving 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 portion 112, and a grip portion 113 for a user to hold. The magazine 120 is used to hold the fastener 10, with at least a portion of the magazine 120 disposed outside the housing 110. The fastener 10 provided in this embodiment is a nail. The nail size can be 15 Ga, 16 Ga, 18 Ga, 23 Ga, 25 Ga, etc., without limitation herein. The angle of the nail can be 0 degrees, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, etc., and there is no limitation here. The nail can be a straight nail, a U-shaped nail, etc., and there is no limitation here.

[0129] One end of the grip 113 is connected to the main housing 111. A trigger 1131 is provided on the grip 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 114. The other end of the grip 113 is connected to the coupling 114, and the coupling 114 is used to connect to a DC or AC power supply. In this embodiment, the coupling 114 can detachably install a battery pack 115, and the specifications and power of the battery pack 115 are not limited here.

[0130] As shown in Figures 2 and 3, the fastener driver 100 also includes a striking assembly 130, a transmission mechanism 140, an energy storage device 150, and a motor 160. The striking assembly 130 includes a striker 131 and a piston 132. The striker 131 is mounted on the piston 132, and the piston 132 is located substantially behind the striker 131. The energy storage device 150 drives the piston 132 and the striker 131 forward to output striking force in the striking direction. The striker 131 strikes the fastener 10, driving the fastener 10 into the workpiece. The transmission mechanism 140 drives the striker 131 backward to store energy in the energy storage device 150. The energy storage device 150 includes a first cylinder 151. The first cylinder 151 accommodates the piston 132 and allows the piston 132 and a portion of the striker 131 to reciprocate within the first cylinder. A storage space is formed inside the main housing 111 to accommodate at least a portion 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. A accommodating space is formed on the inner side of 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.

[0131] As shown in Figures 3 to 7, the fastener driver 100 includes a trigger assembly 200. The trigger assembly 200 is operable by a user. At least a portion of the trigger assembly 200 is configured to move along the 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 striker 131 to strike the fastener 10. In the second state, the trigger assembly 200 prohibits the striker 131 from striking the fastener 10. The user operates the trigger assembly 200 to switch between the first and second states. Typically, the user presses at least a portion of the trigger assembly 200 against a workpiece to activate the trigger assembly 200. The trigger assembly 200 includes a trigger lever 201 and a contact member 202. The contact member 202 is at least partially located at the front end of the fastener driver 100. Therefore, when the user aligns the front end of the fastener driver 100 with the workpiece and approaches the workpiece, the contact member 202 first contacts the workpiece. When the contact member 202 contacts the workpiece and moves, the trigger lever 201 moves with the contact member 202. At least a portion of the trigger rod 201 and the contact member 202 is configured to move along the first straight line 101. It should be noted that the trigger rod 201 and the contact member 202 move relative to the housing 110 along the first straight line 101. After the contact member 202 contacts the workpiece, the user continues to operate the fastener driver 100 toward the workpiece. The positions of the trigger rod 201 and the contact member 202 relative to the workpiece remain unchanged, but the housing 110 moves toward the workpiece, causing the trigger rod 201 and the contact member 202 to move backward relative to the housing 110 along the first straight line 101. Similarly, while the contact member 202 remains in contact with the workpiece, the user operates the fastener driver 100 to move away from the workpiece. The positions of the trigger rod 201 and the contact member 202 relative to the workpiece remain unchanged, but the housing 110 moves away from the workpiece, causing the trigger rod 201 and the contact member 202 to move forward relative to the housing 110 along the first straight line 101. The trigger rod 201 and the contact member 202 are connected by threads, so that the contact member 202 can drive the trigger rod 201 to move along the first straight line 101 , and the trigger rod 201 can also move relative to the contact member 202 .

[0132] The fastener driver 100 includes a safety switch. A user can only use the fastener driver 100 to eject the fastener 10 when both the safety switch and the main switch are triggered. The trigger assembly 200 is configured to trigger the safety switch. When the trigger assembly 200 moves to the triggered position, the safety switch is triggered. The safety switch can be a mechanical or electronic switch.

[0133] When the trigger assembly 200 is not abutting the workpiece, or when the trigger assembly 200 is abutting the workpiece but has not moved to the trigger position, the trigger assembly 200 is in the second state. When the trigger assembly 200 abuts the workpiece and moves rearward 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 on and the user presses the trigger 1131, the firing pin 131 ejects a fastener 10. After completing the firing, the firing pin 131 remains in the rest position, awaiting the next fastener 10 to be fired the next time the user presses the trigger 1131 and the safety switch is on. In the rest position, the fastener driver 100 is stopped. When the user presses the trigger 1131, the drive mechanism continues to drive the firing pin 131 rearward to the top dead center position. The air in the first cylinder 151 is substantially compressed to its limit, and the elastic potential energy stored in the energy storage device 150 has substantially reached its peak value. The striking assembly 130 stops moving backward, and the firing pin 131 moves substantially to its rearwardmost position. In some embodiments, when the trigger 1131 is pressed, each time the safety switch is engaged, that is, each time the user presses the fastener driver 100 against a workpiece, the firing pin 131 strikes the fastener 10. After the firing pin 131 completes a strike, the fastener 10 moves within the magazine 120, allowing the firing pin 131 to eject the next fastener 10. Driven by the transmission mechanism 140 and the energy storage device 150, the striking assembly 130 reciprocates to continuously and sequentially strike the fasteners 10. During each firing cycle, the fastener driver 100 ejects a fastener 10.

[0134] The fastener driver 100 includes a guide assembly 180 for guiding the fastener 10 in the direction of firing. The guide assembly 180 is in communication with at least a portion of the magazine 120. The fastener driver 100 also includes a support frame 190. The support frame 190 connects the energy storage device 150 and the guide assembly 180. The support frame 190 includes a hole 191 through which the firing pin 131 passes. The support frame 190 is fixedly connected to the energy storage device 150, and the guide assembly 180 is fixedly connected to the support frame 190. The support frame 190 fixedly connects the energy storage device 150 and the guide assembly 180, ensuring high coaxiality between the energy storage device 150 and the guide assembly 180. The guide assembly 180 includes a first guide member 181 and a second guide member 182. The second guide member 182 includes an input port 1821. The input port 1821 is in communication with at least a portion of the magazine 120 , such that the fastener 10 is lifted from the magazine 120 through the input port 1821 to the guide assembly 180 .

[0135] As shown in Figures 6 and 7, the guide assembly 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 guide member 182. The first protrusion 1831 is formed with a through-hole, allowing the first protrusion 1831 to be inserted through the through-hole and fit over the trigger rod 201. 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 through the first mounting portion 183 and along the first straight line 101. The support of the trigger rod 201 by the first mounting portion 183 reduces manufacturing costs and provides 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 fixed to the second protrusion 1921 by screws.

[0136] Detection mechanism 170 is mounted on support frame 190. Support frame 190 and guide assembly 180 are fixedly connected, with guide assembly 180 supporting trigger assembly 200. Thus, guide assembly 180 and detection mechanism 170 are both mounted to support frame 190, and the positional relationship between detection mechanism 170 and guide assembly 180 is fixed. Guide assembly 180 supports trigger assembly 200, ensuring a stable and reliable positional relationship between trigger assembly 200 and detection mechanism 170. This facilitates detection mechanism 170 to accurately identify the position of trigger assembly 200, minimizing errors.

[0137] As shown in Figures 3-4 and 7-8, the trigger assembly 200 includes a rod sleeve 210 having a hole. The rod sleeve 210 is positioned through the hole over the end of the trigger rod 201 near the detection structure. In this embodiment, the rod sleeve 210 and the trigger rod 201 are detachably connected via threads, facilitating installation and resulting in a simple and compact structure. After the rod sleeve 210 is fixed to the trigger rod 201, it moves synchronously with the trigger rod 201. In some embodiments, the rod sleeve 210 can be connected to the trigger rod 201 by other means, or the rod sleeve 210 and the trigger rod 201 can be integrally formed. The trigger assembly 200 includes a storage compartment 212 that accommodates at least a portion of the sensing device 175. The storage compartment 212 is disposed on the rod sleeve 210. In this embodiment, the storage compartment 212 is a cylindrical hollow chamber formed in the center of the rod sleeve 210. The storage compartment 212 can be open or closed, without limitation.

[0138] The sensing device 175 switches the trigger assembly 200 between a first state and a second state. The fastener driver 100 includes a control device 220, which includes a controller 221. The controller 221 is 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 configured to sense the position of the sensing device 175. When the sensing device 175 moves to the trigger position with the trigger assembly 200, the sensing device 175 is detected by the sensing device 175 and, through the controller 221, controls the safety switch to be turned on, placing the trigger assembly 200 in the first state. When the sensing device 175 moves away from the trigger position with the trigger assembly 200, the sensing device 175 is detected by the sensing device 175 and, through the controller 221, controls the safety switch to be turned off, placing the trigger assembly 200 in the second state. The sensing device 175 includes a magnetic element 176, specifically a cylindrical magnet. The detection mechanism 170 includes a Hall effect sensor 171. The magnet is directly mounted within the rod sleeve 210, thereby securing it to the trigger rod 201. The magnet moves with the rod sleeve 210 and the trigger rod 201, resulting in simple installation, a stable and compact structure, and high detection accuracy. In some embodiments, the detection mechanism 170 may also include a potentiometer, etc., and the sensing device 175 may also include other components that can be detected by the detection mechanism 170. This is not limited herein, as long as the detection mechanism 170 can detect the position of the sensing device 175.

[0139] The trigger assembly 200 includes a depth adjustment member 213 and a gasket 214. The user rotates the depth adjustment member 213 to adjust the depth to which the fastener 10 is driven into the workpiece. The depth adjustment member 213 is drivingly connected to the trigger rod 201. When the depth adjustment member 213 rotates, the depth adjustment member 213 drives the trigger rod 201 and the rod sleeve 210 to rotate. The gasket 214 is disposed 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 loosening due to friction. The gasket 214 is fixedly mounted 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, gasket 214, and trigger rod 201 move synchronously, reducing friction, preventing loosening between parts, and ensuring a stable and reliable connection.

[0140] As shown in Figures 1 to 4, the housing 110 includes an extension portion 1121, which accommodates the first mounting portion 183, a portion of the trigger rod 201, the rod sleeve 210, the sensing device 175, and the detection mechanism 170. The portion of the 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 components, providing a simple, reliable, cost-effective, and aesthetically pleasing structure. In this embodiment, the extension portion 1121 is integrally formed with the transmission portion 112, reducing manufacturing costs. In some embodiments, the extension portion 1121 is integrally formed with the main housing 111.

[0141] The distance L1 between the end of the trigger lever 201 distal from the detection mechanism 170 and the front 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 front end of the fastener driver 100 is unobstructed, providing good visibility and making it easier for the user to insert the guide assembly 180 into a confined space for operation.

[0142] As shown in Figure 6, the guide assembly 180 includes a stopper 184. This prevents the workpiece from contacting the trigger rod 201 instead of the contact member 202 when the user is operating the fastener driver 100 on an irregular workpiece, thereby posing a safety hazard. The stopper 184 is located above the trigger rod 201. In some embodiments, the stopper 184 can also be located below the trigger rod 201. In the front-to-back direction, the front end of the stopper 184 is substantially aligned with the front end of the trigger rod 201. The position of the stopper 184 is fixed relative to the housing 110. When a workpiece contacts the stopper 184, it is blocked by the stopper 184 and prevents further movement of the trigger rod 201, thereby preventing the safety switch from being triggered, thereby improving safety. The end of the stopper 184, which is distal to the detection mechanism 170, is approximately the same distance L1 from the front end of the fastener driver 100. This ensures unobstructed visibility of the front end of the fastener driver 100. The stopper 184 is positioned on the second guide member 182, resulting in a compact structure. In this embodiment, the stopper 184 and the second guide member 182 are integrally formed to save costs.

[0143] After completing a firing sequence, the firing pin 131 remains in the rest position. The fastener driver 100 includes a lifting assembly 230. At least a portion of the lifting assembly 230 is movably disposed within the magazine 120 to drive the fasteners 10 within the magazine 120. After a fastener 10 is ejected, the lifting assembly 230 lifts the next fastener 10 through the input port 1821 to the guide assembly 180 for ejection by the firing pin 131. In the time between the firing pin 131 reaching the rest position and the next time the fastener driver 100 ejects a fastener 10, the lifting assembly 230 must lift a fastener 10 from the magazine 120 to the front of the firing pin 131. If the lifting assembly 230 becomes stuck, the fastener 10 may not be lifted to a position where it can be ejected by the firing pin 131. The firing pin 131 may continue to move without being able to eject a fastener 10, resulting in inconvenience and reduced work efficiency.

[0144] Generally, in order to quickly eject the fastener 10 during the next strike, in the rest 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 conditions, the firing pin 131 may accidentally lose control and eject the fastener 10 without the user's knowledge, causing danger.

[0145] In some embodiments, when in the rest 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-to-back direction. The fastener driver 100 includes a device to prevent the firing pin 131 from being accidentally ejected. The device prevents the firing pin 131 from being accidentally ejected. In these embodiments, the time difference between the firing pin 131 reaching the rest position and the next time the fastener driver 100 ejects a fastener 10 depends on the speed at which the user operates the fastener driver 100. After the user ejects a fastener 10, the firing pin 131 moves to the rest position. Subsequently, the user lifts the fastener driver 100, moves it to a suitable position, and ejects another fastener 10. The time difference between the firing pin 131 reaching the rest position and the next time the fastener driver 100 ejects a fastener 10 is substantially equal to the time it takes the user to lift, move, and then press the fastener driver 100 downward. It is understood that the average time it takes for a user to lift, move, and then depress the fastener driver 100 is generally greater than one second. That is, because the striker 131 and the input port 1821 do not interfere with each other, the lifting assembly 230 can begin lifting the fastener 10 after the striker 131 moves to the stop position, and the lifting assembly 230 must lift the fastener 10 to the guide assembly 180 in greater than one second.

[0146] In this embodiment, as shown in Figure 7, when in the rest position, the firing pin 131 is pressed against the fastener 10, and the firing pin 131 and the fastener 10 overlap in the front-to-back direction. When in the rest position, the firing pin 131 interferes with the input port 1821. Therefore, even if the firing pin 131 is accidentally ejected after stopping in the rest position, the fastener 10 will not be ejected. In this embodiment, the time difference between the firing pin 131 reaching the rest position and the next time the fastener driver 100 ejects the fastener 10 depends on the speed of the firing pin 131 and the distance between the rest position and the top dead center position. After the user ejects a fastener 10, the firing pin 131 quickly moves to the rest position. Because the firing pin 131 interferes with the input port 1821 in the rest position, the firing pin 131 remains in the rest position while the user lifts, moves, and then presses the fastener driver 100 downward, obstructing the lifting assembly 230 from lifting the fastener 10 to the guide assembly 180. When the user presses the trigger 1131 again, the firing pin 131 moves to the top dead center position, that is, the firing pin 131 moves backward. Only when the firing pin 131 moves to a point where it no longer interferes with the input port 1821 can the lifting assembly 230 begin to lift the fastener 10 to the guide assembly 180. This lifting action must be completed before the firing pin 131 moves forward from the top dead center position to contact the fastener 10, that is, to the striking position. The time difference between the firing pin 131 reaching the rest position and the next time the fastener driver 100 strikes the fastener 10 is substantially equal to the time it takes for the firing pin 131 to move from the rest position to the top dead center position and then to the striking position. The time it takes for the firing pin 131 to move from the rest 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 it takes for the firing pin 131 to move from the rest position to the top dead center position and then to the striking position is approximately 0.02 to 0.04 seconds. That is to say, the lifting assembly 230 should lift the fastener 10 to the guide assembly 180 within a time of about 0.02 to 0.04 seconds. In order for the lifting assembly 230 to lift the fastener 10 into place within a short time, the lifting assembly 230 needs to move smoothly without getting stuck.

[0147] As shown in Figures 9 to 13, the fastener driver 100 includes an anti-runaway assembly 240, which has an anti-runaway state. The anti-runaway assembly 240 includes a stopper 241. When the stopper 241 is located in the travel path of the trigger assembly 200, the anti-runaway assembly 240 is in the anti-runaway state. When the trigger assembly 200 is located in the travel path of the stopper 241, the trigger assembly 200 is in a first state. In the anti-runaway 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. Thus, in the anti-runaway state, the user cannot use the fastener driver 100 to drive out the fasteners 10. When the remaining number of fasteners 10 reaches a low preset value, the anti-runaway assembly 240 switches to the anti-runaway state. The function of the anti-runaway state is that in the anti-runaway state, the user can be informed of the insufficient number of fasteners 10, so that the magazine 120 can be replenished with fasteners 10 in a timely manner. It is defined that in the anti-runaway state, the remaining number of fasteners 10 is a minimum preset value. In some embodiments, the minimum preset value is 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 fasteners.

[0148] Before entering the runaway prevention state, a certain number of fasteners 10 remain in the magazine 120. It will be appreciated that, before entering the runaway prevention state, the number of fasteners 10 remaining in the magazine 120 is greater than or equal to a minimum preset value. As the magazine approaches the runaway prevention state, the number of fasteners 10 remaining in the magazine 120 decreases, and the number of fasteners 10 approaches the minimum preset value.

[0149] The lifting assembly 230 is movably mounted on the magazine 120. In this embodiment, the lifting assembly 230 moves up and down relative to the magazine 120 under user control. The lifting assembly 230 includes a magazine spring that biases the lifting assembly 230 toward the guide assembly 180. The user overcomes the spring force and operates the lifting assembly 230 to move away from the guide assembly 180, leaving space for additional fasteners 10. When the magazine is fully loaded with fasteners 10, the lifting assembly 230 is at its furthest distance from the guide assembly 180. When the magazine is depleted of fasteners 10, the lifting assembly 230 is closest to the guide assembly 180. Each time the firing pin 131 fires a fastener 10, the space above the remaining fasteners 10 is cleared. If the input port 1821 is unobstructed, the lifting assembly 230, driven by the magazine spring, lifts the fasteners 10 in the magazine 120 upward, recharging one fastener 10 to the front of the firing pin 131. The magazine elastic member is a spring, which can be a tension spring or a coil spring.

[0150] Lifting assembly 230 drives the stopper 241 and fastener 10 to move. 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, while the second lifting portion 233 is configured to drive the fastener 10. After the fastener 10 is loaded into magazine 120, the second lifting portion 233 abuts the lower end of the fastener 10, forcing the fastener 10 upward. Stopper 241 is located at one end of magazine 120 near guide assembly 180 and includes a first abutting surface 2421.

[0151] As the fastener 10 is gradually consumed, the lifting assembly 230 moves upward and gradually approaches the guide assembly 180. After the first lifting portion 232 abuts 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 begins to drive the stopper 241 to perform a first motion. The stopper 241 is configured to rotate around the first axis 1001. The first motion is a first movement that rotates around 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.

[0152] In the left-right direction, at least a portion of the stopper 241 is disposed between the magazine 120 and the trigger assembly 200. In the front-back direction, at least a portion of the stopper 241 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 spaced away from the first axis 1001 relative to the rotating portion 244. During the first movement of the stopper 241, the stopper 241 rotates about the first axis 1001 in a first direction 1010, causing the stopper 243 to move toward the trigger assembly 200. The trigger assembly 200 includes a trigger portion 216 extending perpendicular to the first straight line 101. When viewed along the first straight line 101, when the stopper 243 and the trigger portion 216 begin to overlap, the stopper 243 is located in the travel path of the trigger portion 216. The stopper 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 stopper 243 stops the sensing device 175 from moving to the position that the detection mechanism 170 can detect, that is, the trigger position, and the safety switch cannot be triggered, and the anti-runaway assembly 240 is in the anti-runaway state. The fastener driver 100 reminds the user to replenish the fastener 10. In other words, observing the fastener driver 100 along the front-back direction, when the stopper 241 and the rod sleeve 210 begin to overlap, the stopper 241 stops the rod sleeve 210 from moving backward, and the anti-runaway assembly 240 is in the anti-runaway state, and the trigger assembly 200 can only remain on the second state. Otherwise, observing the fastener driver 100 along the left-right direction, when the stopper 241 and the rod sleeve 210 begin to overlap, the trigger assembly 200 enters the first state, and the rod sleeve 210 stops the stopper 241 from moving to the right, and the anti-runaway assembly 240 can't be switched to the anti-runaway state.

[0153] Each time the 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 vertical direction. Since the thickness of the fastener 10 is generally small, the distance that the lifting assembly 230 lifts 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 a 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 by which the stopper 243 rotates toward the trigger assembly 200 each time is also very small.

[0154] When a preset number of fasteners 10 remain in the magazine, the trigger assembly 200 blocks the first movement of the stopper 241. When the trigger assembly 200 blocks the first movement of the stopper 241, the lifting assembly 230 drives the stopper 241 to perform a second movement. When the trigger assembly 200 is in the first state and blocks the first movement of the stopper 241, the trigger assembly 200 blocks the stopper 241 from switching to the anti-runaway state, thereby driving the stopper 241 to perform the second movement. The trigger assembly 200 includes an obstruction portion 215 located circumferentially about the first straight line 101. When the obstruction portion 215 is within the motion path of the stopper 243 during the first movement, the obstruction portion 215 blocks the first movement of the stopper 241. In this embodiment, the rod sleeve 210 includes the obstruction portion 215, which is the outer circumferential surface of the rod sleeve 210. Before the anti-runaway assembly 240 enters the anti-runaway state, the trigger assembly 200 can move normally along the first straight line 101. 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, where it overlaps with the input port 1821. Therefore, until the next time the trigger assembly 200 moves to the trigger position, the firing pin 131 moves back to a point where it no longer overlaps with the input port 1821, preventing 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 contacts the fasteners 10. As 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 until it contacts the stopper 241. When the user operates the trigger assembly 200, the trigger assembly 200 moves to the trigger position, the firing pin 131 moves back 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 perform the first movement.

[0155] The trigger assembly 200 is in a first state in Figures 14 to 17 and in a second state in Figures 18 to 19. As shown in Figures 14 and 15, when the trigger assembly 200 is in the triggered position, the obstructing portion 215 and the stopper 243 at least partially overlap in the front-to-back direction when viewing the fastener driver 100 from the left or right side. When viewing the fastener driver 100 from the front or rear side, if the gap between the obstructing portion 215 and the stopper 243 in the left-to-right direction is minimal, or if the obstructing portion 215 barely contacts the stopper 243, the trigger assembly 200 blocks the first movement of the stopper 241. Specifically, when the number of fasteners 10 reaches a predetermined number, in the first state, the striker 131 moves, and then the lifting assembly 230 begins to drive the stopper 241 to perform the first movement. However, the trigger assembly 200 blocks the first movement of the stopper 241. Since the lifting assembly 230 abuts against the stopper 241, if the stopper 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 strike out. If the stopper 241 cannot perform the first movement, the anti-runaway assembly 240 cannot enter the anti-runaway state. This means that every time the user operates the trigger assembly 200 to move once, the firing pin 131 will be fired in vain once. Especially in this embodiment, the firing pin 131 interferes with the input port 1821 in the parking position, and the lifting assembly 230 needs to lift the fastener 10 to the input port 1821 in a very short time. Once the lifting assembly 230 has even a slight jam, it will cause the lifting assembly 230 to be unable to lift the fastener 10 normally, and the user will not be able to use the fastener driver 100 normally.

[0156] As shown in Figures 16 and 17, when the trigger assembly 200 blocks the stopper 241 from performing the first movement, the lifting assembly 230 drives the stopper 241 to perform the second movement. The stopper 241 is also configured to rotate about the second axis 1002. The second movement includes a first movement of rotation about the first axis 1001 in a first direction 1010 and a second movement of rotation about the second axis 1002 in a second direction 1020. When the obstruction portion 215 abuts the stopper 243, the first lifting portion 232 abuts the first abutting surface 2421, driving the stopper 241 to perform the second movement. The second movement includes a first movement and a second movement. The first and second movements are rotations about different axes. When the stopper 241 rotates about two different axes, it rotates in two dimensions. The stopper 241 has at least two degrees of rotational freedom. The first and second movements occur substantially simultaneously. Combining the first and second movements, it can be understood that the stopper 241 is flipping. In other words, the flipping of the stopper 241, that is, the second movement of the stopper 241 can be divided into a first action and a second action, and the first movement of the stopper 241 only includes the first action. In this way, when the trigger assembly 200 prevents 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 assembly 230 to be lifted. When the stopper 241 performs the second movement, the lifting assembly 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 angle of rotation of the stopper 241 around 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 the movement of rotating around two different axes, the position of the axis is not limited here. In some embodiments, the second movement may also include the movement of rotating around more axes.

[0157] When the trigger assembly 200 blocks the stopper 241 from performing the first movement, the lifting assembly 230 can drive the stopper 241 to perform the second movement, so that the lifting assembly 230 can normally lift the fastener 10 for the following reasons.

[0158] Fastener driver 100 includes an elastic member 250. When lifting assembly 230 applies a first force F1 to stopper 241 and obstruction 215 applies a second force F2 to stopper 241, stopper 241 applies a third force F3 to elastic member 250, causing the second movement. In other words, the compressive stress applied to stopper 243 by first lifting portion 232 and obstruction 215 is converted into an elastic force by elastic member 250. This force is transferred to elastic member 250, which acts as a force relief. During this force conversion process, stopper 241 rotates about second axis 1002 in second direction 1020 to perform the second movement. Second axis 1002 extends substantially along the length of stopper 241. As stopper 241 rotates about second axis 1002, the space occupied by stopper 243 in the left-right direction decreases when viewed from the front-to-back direction, allowing lifting assembly 230 to move upward. When the stopper 241 performs the second movement, the first and second forces F1 and F2 gradually transform into the third force F3, and the deformation of the elastic member 250 gradually increases. As the stopper 241 performs the second movement, the lifting assembly 230, driven by the magazine elastic member, also drives the stopper 241 to perform the first movement. The lifting assembly 230 smoothly moves upward, lifting the fastener 10 via 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 occur simultaneously; there is no order of precedence between them.

[0159] As shown in Figures 18 and 19, after the stopper 241 undergoes the second movement, the elastic member 250 drives the stopper 241 to undergo a third movement. When the second force F2 decreases to zero, the elastic member 250 drives the stopper 241 to undergo the third movement. When the user lifts the fastener driver 100, the trigger assembly 200 moves forward to exit the first state and begin to enter the second state, the contact area between the obstruction portion 215 and the stopper 243 gradually decreases. As the second force F2 acting on the stopper 241 decreases to zero, the forces acting on the stopper 241 are no longer balanced, and the elastic member 250 begins to restore its original shape. The elastic potential energy stored in the elastic member 250 is converted into kinetic energy, and the elastic member 250 applies a reaction force F4 to the stopper 241, driving the stopper 241 to undergo the third movement. The third movement includes a third rotational motion about the second axis 1002 in the third direction 1030. The third motion is in the opposite direction of the second motion. The third movement also includes a first action of rotating about first axis 1001 in first direction 1010. After stopper 241 performs the third movement, when stopper 243 and triggering portion 216 overlap in the left-right direction as viewed from the front-back direction, stopper 243 is located in the travel path of triggering portion 216. Stopper 243 blocks the movement of trigger assembly 200, and stopper 241 prevents trigger assembly 200 from switching to the first state, causing anti-runaway assembly 240 to enter the anti-runaway state. This makes fastener driver 100 smooth and convenient to use.

[0160] As shown in Figures 20 and 21, the anti-runaway assembly 240 includes a stopper 245 and a rotating shaft 246. The stopper 245 limits the amplitude of the second movement of the stopper 241. The stopper 245 is located on one end of the magazine 120 near the guide assembly 180 and on one side near the trigger assembly 200. In this embodiment, the stopper 245 and the magazine 120 are integrally formed to save costs. At least a portion of the rotating shaft 246 is mounted between the stopper 245. The stopper 245 includes a first stopper wall 2451 and a second stopper wall 2452, which are arranged opposite each other in the front-to-back direction. The first stopper wall 2451 and the second stopper wall 2452 each include a hole. The rotating shaft 246 passes through the holes in the first stopper wall 2451 and the second stopper wall 2452 to be mounted on the stopper 245. In some embodiments, the rotating shaft 246 can also be mounted on the stopper 245 using other methods. 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 stopper 243. The stopper 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 stopper 243 and the intermediate portion 247, the rotating portion 244 is closer to the rotating shaft 246. The rotating portion 244 is movably mounted on the rotating shaft 246 and is loosely fitted with the rotating shaft 246 for flipping. The limiting portion 245 includes a receiving space 248, which 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 part of the rotating portion 244 is received in the receiving space 248.

[0161] The length L2 of the accommodating space 248 in the front-to-back direction limits the amplitude of the second movement of the stopper 241. The length of the rotating portion 244 in the front-to-back direction is L3. In the front-to-back direction, the ratio L2 / L3 of the length of the accommodating space 248 and the length of the rotating portion 244 is greater than or equal to 1.2. The ratio of the length of the accommodating space 248 and the length of the rotating portion 244 in the front-to-back direction is greater than 1.2, so that the length of the accommodating space 248 is greater than the length of the rotating portion 244. The limiting portion 245 will not prevent the stopper 241 from flipping over, and the stopper 241 has enough space to perform the second action. The angle of rotation of the stopper 241 around the second axis 1002 is large. When observing the stopper 241 from the front-to-back direction, the space occupied by the stopper 243 in the left-to-right direction can be reduced significantly, and the lifting assembly 230 can move upward a longer distance.

[0162] In some embodiments, the ratio of the length of the accommodation space 248 to the length of the rotating portion 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 portion 244 is greater than or equal to 1.4 and less than or equal to 2.8. In this way, the accommodation space 248 provides sufficient space for the stopper 241 to perform the second movement while preventing the stopper 241 from rotating excessively, resulting in a simple structure and low cost.

[0163] As shown in Figures 21 to 23, the elastic member 250 is disposed on the rotating shaft 246. The elastic member 250 includes a deforming portion 251. When the elastic member 250 is compressed, the deforming portion 251 deforms first. When the elastic member 250 returns to its original shape, the deforming portion 251 first drives the stopper 241 to move. The stopper 241 includes a second abutting surface 2422. The deforming portion 251 abuts against the second abutting surface 2422 to drive the stopper 241 to perform the third movement. At least a portion of the second abutting surface 2422 is located on a side of the rotating shaft 246 that is closer to the first lifting portion 232 and farther from the stopper 243. In this embodiment, the second abutting surface 2422 is located on the lower left side of the rotating shaft 246. This allows the elastic member 250 to store or release energy during the first, second, and third movements of the stopper 241. The second abutting surface 2422 is curved and recessed toward the rotating shaft 246. The second abutting surface 2422 includes a groove, and the deformed portion 251 abuts against the groove.

[0164] The elastic member 250 is a spring wire, partially wound around the rotating shaft 246. The deformable portion 251 includes a first deformable portion 2511 and a second deformable portion 2512, each of which serves as the ends of the spring wire. The first deformable portion 2511 extends substantially along the second straight line 102. The rotating shaft 246 extends substantially along the third straight line 103. When viewing the fastener driver 100 from above and below, the angle p between the second straight line 102 and the third straight line 103 is greater than 0 degrees 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 degrees and less than or equal to 100 degrees. Thus, the deformable portion 251 can both receive the force from 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 upon receiving the force from the stopper 241 and drive the stopper 241 to move upon restoring its shape. This is not a limitation herein.

[0165] 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.

[0166] When a predetermined number of fasteners 10 remain in magazine 120, stopper 241 flips to allow at least a portion of lifting assembly 230 to be lifted. After lifting assembly 230 is lifted, elastic member 250 drives stopper 241 to flip, causing anti-runaway assembly 240 to enter an anti-runaway state, prompting the user to replenish fasteners 10. Fastener driver 100 is convenient, quick, and safe to use.

[0167] As shown in Figures 24 to 29, fastener driver 100 includes a housing 260 and a light-emitting device 270. Housing 260 accommodates at least a portion of light-emitting device 270, which is used for illumination and / or indication. Light-emitting device 270 includes a connecting portion 271, which is at least partially movably received in housing 260. Connecting portion 271 is movable relative to housing 260, allowing at least a portion of light-emitting device 270 to move relative to housing 110. A user can manipulate light-emitting device 270 to move at least a portion of light-emitting device 270, thereby expanding the range of illumination and indication provided by light-emitting device 270.

[0168] In some embodiments, the accommodating portion 260 is disposed on the housing 110. The light-emitting device 270 is generally used to illuminate the shooting area of ​​the fastener 10. In this embodiment, the accommodating portion 260 is partially disposed on the transmission portion 112 and partially disposed on the main housing 111. The connecting portion 271 is configured to slide along the extension direction of the accommodating portion 260. The accommodating portion 260 is disposed substantially parallel to the extension direction of the main housing 111. The transmission portion 112 is located closer to the guide assembly 180, so that the light-emitting device 270 can more clearly illuminate the shooting area of ​​the fastener 10. In some embodiments, the light-emitting device 270 can also be disposed on the main housing 111, the transmission portion 112, the grip portion 113, the coupling portion 114, or the magazine 120, or can be disposed at a position of a combination of any parts of the housing 110.

[0169] The connecting portion 271 includes a slider 272. The accommodating portion 260 includes a track 261 that guides the movement of the slider 272. As shown in Figures 24 to 26, in this embodiment, the surface of the slider 272 is curved. The slider 272 is spherical. The track 261 extends substantially parallel to the extension direction of the main housing 111 and is disposed inside the housing 110. The connecting portion 271 can slide in the front-to-back direction. The track 261 has a channel 262 that is closed along its length. The channel 262 includes an opening 263 that opens forward. The inner surface of the channel 262 is curved, while the inner surface of the track 261 is cylindrical. The slider 272 is accommodated in the track 261, so that the light-emitting device 270 can be accommodated by sliding within the track 261. Any dimension of the slider 272's cross section is larger than any dimension of the opening 263's cross section, so that the movement distance of the slider 272 is limited by the opening 263. In this embodiment, the cross-sectional diameter of the slider 272 is larger than the cross-sectional diameter of the opening 263. The slider 272 can move within the channel 262 but will not escape from the channel 262, making it convenient for the user to repeatedly remove the connecting portion 271 from and retract it into the accommodating portion 260.

[0170] 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 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, providing users with more angles for illumination and indication, and is convenient to use. It should be noted that rotation includes the rotation of the light-emitting portion 273 around itself (rotation) and the rotation of the light-emitting portion 273 relative to the connecting portion 271 (revolution). The method of rotation is not limited here.

[0171] 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, causing the flexible rod 274 to deform, 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 accommodated in the accommodating portion 260, with a compact structure and convenient accommodation. 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 accommodated in the accommodating portion 260, making it easy to use.

[0172] At least a portion of the housing 260 is positioned above the trigger 1131. The housing 260 is positioned above the fastener driver 100. The housing 260 can be designed to be relatively long in the front-to-back direction. The light-emitting device 270 is housed above the fastener driver 100, allowing it to move a considerable distance relative to the housing 110. The light-emitting device 270 provides a wide illumination and indication range, efficiently utilizes space, and has an aesthetically pleasing appearance.

[0173] As shown in Figures 27 to 29, in some embodiments, the receiving portion 260 is positioned substantially parallel to the extension direction of the transmission portion 112. The connecting portion 271 slides up and down within the receiving portion 260. The slider 272 is polygonal. The track 261 extends substantially parallel to the extension direction of the transmission portion 112 and is positioned outside the housing 110. The track 261 has a semi-open channel 262 along its length. The channel 262 includes an opening 263 that opens forward and upward. The opening 263 is C-shaped. The inner surface of the track 261 is movably engaged with the connecting portion 271, allowing the connecting portion 271 to slide within the track 261 or to stop at a certain position on the track 261. In some embodiments, the light-emitting portion 273 includes a pressing member 275. When the user presses the pressing member 275, the connecting portion 271 slides relative to the receiving portion 260. When the user releases the pressing member 275, the connecting portion 271 is fixed relative to the receiving portion 260.

[0174] Lighting unit 273 includes a light-emitting diode 276 and a fixing housing 277. Light-emitting diode 276 is compact, easily stored, and inexpensive to manufacture. Fixing housing 277 secures light-emitting diode 276 and protects it from damage. Fixing housing 277 has ribs that hold light-emitting diode 276 in place. To operate light-emitting unit 273, the user simply pinches fixing housing 277 with their fingers and drags light-emitting unit 273, making it easy to use.

[0175] As shown in Figures 30 to 31, in some embodiments, there are multiple light-emitting devices 270, for example, 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 controlled to be turned on and off individually, and the brightness can also be controlled individually. In different usage environments, the user can choose to turn on different light-emitting devices 270 to obtain the appropriate lighting brightness and angle. The user can also adjust the position of the shadow produced by the light by adjusting the brightness of a light-emitting device 270 individually. The user can clearly see the ejection position of the fastener 10, and the fastener driver 100 is easy to use.

[0176] As shown in Figures 32 and 33, in some embodiments, the transmission mechanism 140 includes a drive wheel 141, which drives the striker 131. The transmission mechanism 140 also includes a first bevel gear 142 and a second bevel gear 143. A motor 160 drives the first bevel gear 142. The first bevel gear 142 and the second bevel gear 143 mesh, driving the second bevel gear 143 to rotate. The second bevel gear 143 drives the drive wheel 141 to rotate via a shaft. The rotation axes of the drive wheel 141 and the second bevel gear 143 are perpendicular to the rotation axis of the first bevel gear 142. The drive wheel 141, the first bevel gear 142, and the second bevel gear 143 are located substantially below the striker 131. The left-right distance between the first cylinder 151 and the motor 160 is less than or equal to 15 mm. In some embodiments, the left-right distance between the first cylinder 151 and the motor 160 is less than or equal to 14 mm, 13 mm, 12 mm, 11 mm, or 10 mm.

[0177] The present application also provides another embodiment of a fastener driver 300 , which has a structure substantially the same as that of the fastener driver 300 . The fastener driver 300 includes a magazine 340 , a housing 310 and a guide assembly 380 .

[0178] As shown in Figures 34 to 37, the fastener driver 300 also 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 to obtain the visual information. The display device 330 extends substantially along an extension direction a. The display device 330 includes a light-emitting portion 311. The length of the light-emitting portion 311 in the extension direction a 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 long length L4 of the light-emitting portion 311 in the extension direction a allows the user to clearly see the information displayed by the display device 330, and the display device 330 can display a wide variety of information. 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.

[0179] The vertical cross section of the display device 330 in the extension direction a has a cross-sectional area greater than or equal to 0.2 cm 2 and less than or equal to 30cm 2 In some embodiments, the cross-sectional area is greater than or equal to 0.5 cm 2 and less than or equal to 25cm 2 In some embodiments, the cross-sectional area is greater than or equal to 1 cm 2 and less than or equal to 20cm 2 In some embodiments, the cross-sectional area is about 2 cm 2 , 3cm 2 , 4cm 2 , 5cm 2 , 6cm 2 , 7cm 2 , 8cm 2 , 9cm 2 , 10cm 2 , or 15cm 2 .

[0180] The fastener driver 300 also 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 may include illuminating, extinguishing, flashing, changing color, or displaying numbers, letters, or symbols. The user can use the visual information displayed by the display device 330 to learn information such as the remaining number of fasteners. The sensing device 320 extends generally along an 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 length L5 of the sensing device 320 in the extension direction a allows the sensing device 320 to sense a greater number of fasteners 10 and a wider 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.

[0181] 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 portion 311 emits light. In the second mode, the light-emitting portion 311 is off. The light-emitting portion 311 includes a plurality of lamp beads 312. The plurality of lamp beads 312 are arranged along the extension direction a. The plurality of lamp beads 312 are arranged along the extension direction of the magazine 340, with a compact and beautiful structure. In some embodiments, in the first mode, the light-emitting portion 311 emits green light. In the second mode, the light-emitting portion 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.

[0182] The fastener driver 300 includes a controller 221. The sensing device 320 includes a transmitter 321 and a receiver 322. The transmitter 321 is configured to transmit a signal. The receiver 322 is configured to receive the signal transmitted by the transmitter 321. When the receiver 322 receives the signal, the controller 221 controls the display device 330 to display corresponding visual information. The fastener 10 is disposed between the transmitter 321 and the receiver 322. The fastener 10 can block the transmission of signals between the transmitter 321 and the receiver 322. When the transmission of signals between the transmitter 321 and the receiver 322 is blocked by the fastener 10, the receiver 322 cannot receive the signal transmitted by the transmitter 321.

[0183] The display device 330 is mounted on the magazine 340. The sensing device 320 is also mounted on the magazine 340. Both the display device 330 and the sensing device 320 are mounted on the magazine 340, creating a compact structure that facilitates sensing the number of fasteners 10 and displaying visual information. The display device 330 and at least a portion of the sensing device 320 are located on either side of the fastener 10. In this embodiment, the display device 330 and at least a portion of the sensing device 320 are located on the left and right sides of the fastener 10, respectively. The display device 330 and the transmitter 321 are located on the left and right sides of the fastener 10, respectively. In some embodiments, the display device 330 and at least a portion of the sensing device 320 may also be located on the top and bottom, or the front and back sides, of the fastener 10, respectively.

[0184] In this embodiment, the receiving unit 322 and the display device 330 are located on the same side of the magazine 340. The fasteners 10 are located between the receiving unit 322 and the display device 330 and the transmitter 321. The fasteners 10 are located in the transmission path of the signal emitted by the transmitter 321. The signal emitted by the transmitter 321 is an optical signal, such as infrared. In some embodiments, the signal emitted by the transmitter 321 can also be a magnetic signal, an electrical signal, or the like. When the magazine 340 is fully loaded with fasteners 10, the fasteners 10 are located in the transmission path of the signal emitted by the transmitter 321, blocking all signal transmission from the transmitter 321 along the extension direction a. The display device 330 is in the first mode, with the light-emitting units 311 illuminating. All light-emitting units 311 along the extension direction a illuminate, indicating to the user that the number of fasteners 10 is sufficient and that there is no need to restock. As the fasteners 10 in the magazine 340 are gradually depleted, the fasteners 10 move upward. As the fasteners 10 move upward, the corresponding storage positions for the fasteners 10 at the bottom of the magazine 340 become vacant, and the signal transmission path originally blocked by the fasteners 10 becomes unobstructed. The partial receiving portion 322 at the bottom of the magazine 340 receives the signal emitted by the transmitting portion 321. The controller 221 controls the lamp beads 312 corresponding to the vacant positions of the fasteners 10 to turn off, and the display device 330 switches to the second mode. Along the extension direction a, as more and more lamp beads 312 begin to turn off from the bottom of the magazine 340, the user is able to know that the number of fasteners 10 is gradually decreasing and that the fasteners 10 can be replenished. By sensing the number of fasteners 10 by the sensing device 320 and displaying the fastener 10 quantity information 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.

[0185] In one embodiment, as shown in Figures 38 and 39, a nail gun 400 includes a housing 41, a power output unit 42, a cylinder 43, and a magazine assembly 44. The housing 41 includes a first storage space 411 extending along a first straight line 401 and a second storage space 412 extending along a second straight line 402. In one embodiment, the power output unit 42 may be partially disposed within the first storage space 411 or partially disposed within the second storage space 412. In one embodiment, the power output unit 42 may include a motor 421 or an energy storage device. An energy storage device can be understood as releasing stored kinetic energy during the first half of a nailing cycle to achieve nailing and storing energy during the second half of a nailing cycle to prepare for subsequent nailing. The energy storage device can be a cylinder that can pre-store gas, a cylinder that can be inflated and deflated during operation, or an elastic member such as a spring. In this embodiment, the cylinder 43 serves as the energy storage device and is disposed within the second storage space 412.

[0186] The housing 41 also includes a handle 413 for the user to grasp. A power port 4131 is provided at one end of the handle 413 for connecting to a DC or AC power source. In this embodiment, the power port 4131 is configured to connect to the battery pack 115. A main switch 413a is provided on the handle 413, which the user uses to control the start and stop of the nail gun 400.

[0187] The other end of the handle 413 is connected to the cylinder 43, which extends along the second straight line 402. The first straight line 401 and the second straight line 402 are perpendicular to each other. The clip assembly 44 is arranged along a third straight line 403, which is parallel to the first straight line 401. As an optional embodiment, the clip assembly 44 is also provided with a window 441 through which the user can observe the remaining nails. The window 441 is configured as one or more notches on the clip assembly 44. This not only allows the user to check the remaining nails, but also allows for simple maintenance of the clip assembly 44 without disassembling it.

[0188] A firing assembly 46 is provided in the cylinder 43, and the gas in the cylinder 43 does work, pushing the firing assembly 46 to move and drive out the nail. The nail gun 400 also includes a striking part 47. The striking part 47 is at least partially provided in the cylinder 43, for example, it can be a piston provided in the cylinder 43 and connected to the firing assembly 46. The striking part 47 can be connected to the firing assembly 46 and can strike the firing assembly 46, thereby causing it to move in the cylinder 43. In one embodiment, the cylinder 43 also includes an inflation nozzle for pre-filling gas in the cylinder 43. The pre-filled gas has a large kinetic energy stored in a compressed state, which can push the striking part 47 to quickly strike the firing assembly 46 to drive out the nail. Alternatively, the cylinder 43 is a cylinder including an air inlet nozzle and an air outlet nozzle, which does not require pre-filling of gas and can be inflated during the operation of the nail gun 400.

[0189] This description uses the example of a pre-filled cylinder 43. After the nail gun 400 is shut down, the motor 421 stops outputting power, causing the firing assembly 46 to stop at its initial position. The pre-filled gas within the cylinder 43 is compressed. When the nail gun 400 is powered on and the motor is activated, the motor 421 outputs power, releasing the power of the firing assembly 46. The striking unit 47 converts the kinetic energy within the cylinder 43 into a striking force that strikes the firing assembly 46, causing the firing assembly 46 to instantly gain significant acceleration, moving to the firing position shown in FIG41 and driving the nail. After driving the nail, the firing assembly 46, driven by the motor 421, returns from the firing position shown in FIG41 to the initial position shown in FIG40 and shuts down. During this process, the firing assembly 46 continuously drives the striking unit 47 to compress the gas within the cylinder 43. The process from starting the nail gun to the firing of the nail, and then returning the firing assembly 46 to its initial position or near its initial position, i.e., the rest position, is referred to as a nailing cycle. It should be noted that the initial position shown in FIG40 is the position where the firing assembly 46 stops after the nail gun 400 is shut down, and therefore can also be referred to as the stop position. The position to which the firing assembly 46 can move upward is referred to as the top dead center, and the position to which the firing assembly 46 can move downward is referred to as the bottom dead center. The firing position and the bottom dead center can be the same position, while the initial position is closer to the top dead center from the bottom up but is not the top dead center, that is, the distance between the initial position and the top dead center is greater than zero.

[0190] As shown in Figure 39, the motor 421 extends substantially along the first straight line 401, and the cylinder 43 and the firing assembly 46 disposed in the cylinder 43 extend substantially along the second straight line 402. The motor 421 and the cylinder 43 are disposed substantially perpendicularly. The motor 421 can serve as a power source to drive the motor 421 to drive the firing assembly 46 to move within the cylinder 43. In an optional implementation, the motor 421 can be a part of the motor 421. It can output power to a drive shaft (not shown), and the drive wheel 425 is disposed on the drive shaft (not shown). The firing assembly 46 includes at least a striker 461. In one embodiment, the firing assembly 46 may also include a striking portion 47, wherein the striking portion 47 may be a piston connected to the top of the striker 461. The piston and the striker 461 are fixedly connected or detachably connected. The striking portion 47 can compress the pre-charged gas in the cylinder 43 as the striker 461 is driven upward, i.e., moves toward its initial position. The firing pin 461 is formed with a transmission tooth 461a, which can move within the cylinder 43 along the second straight line 402, which can be understood as the nailing direction. The driving wheel 425 can cooperate with the transmission tooth 461a to drive the firing assembly 46 to overcome the air pressure in the cylinder 43, thereby causing the firing assembly 46 to enter the initial position shown in Figure 40.

[0191] As shown in Figures 41 and 42, the drive wheel 425 is a gear structure. The drive wheel 425 is also formed with a second connecting hole 425a for connecting to a drive shaft (not shown). The second connecting hole 425a is specifically a flat hole. When the drive shaft (not shown) is connected to the second connecting hole 425a, the drive wheel 425 can rotate synchronously with the drive shaft (not shown). A plurality of drive teeth 425g are formed around the main body of the drive wheel 425. The drive teeth 425g include a first tooth 425b located at the starting end and a second tooth 425d located at the end. Here, the drive tooth 425g that first comes into contact with the firing pin 461 in the firing assembly 46 when the drive wheel 425 starts to drive the firing assembly 46 to return to the initial position shown in Figure 40 is defined as the first tooth 425b, and the drive tooth 425g that is the last to engage with the firing pin 461 in the firing assembly 46 after the firing assembly 46 is in the initial position is defined as the second tooth 425d. Between the first tooth 425b and the second tooth 425d is a first section 425e and a second section 425f. The first section 425e is evenly distributed with multiple drive teeth 425g; the second section 425f is smooth and continuous and lacks any drive teeth 425g. When the drive teeth 425g of the first section 425e engage with the transmission teeth 461a on the striker 461, the drive wheel 425 can drive the striker 461 to compress the gas in the cylinder 43 to produce work. When the second section 425f engages with the striker 461, due to the smoothness and continuity of the second section 425f, the striker 461, without the drive teeth 425g blocking it, is rapidly pushed out by the gas in the cylinder 43, thereby achieving the nailing effect.

[0192] In other embodiments, the driving wheel 425 may also be a driving component in other forms. This application does not specifically limit the structural forms of other possible driving wheels 425.

[0193] In this embodiment, a light-emitting device 48 is provided on the nail gun 400. The light-emitting device 48 can be one or more LED lamp beads arranged at different positions, or a row of light strips, or a digital tube, or a display screen, etc. As shown in Figure 43, the light-emitting device 48 is three LED lights arranged on the shell 41. Among them, one light-emitting device 481 is arranged directly above the horizontal plane where the firing pin 461 is located, and the other two light-emitting devices 482 can cooperate with the light-emitting device 481 to project a V-shaped, arrow-shaped or triangular light spot on the workpiece to be nailed, and the light spot can indicate the nailing position on the workpiece. In one implementation, the other two light-emitting devices 482 are arranged on the shell 41 on the left and right sides of the front end of the nail gun 400.

[0194] The light-emitting device can also be light-emitting device 270. That is, a user can manipulate light-emitting device 270 to move at least a portion of light-emitting device 270, allowing light-emitting device 270 to illuminate and indicate a wider range. The light-emitting device can also be light-emitting portion 311. That is, the light-emitting device can also have a certain extended length, or the light-emitting device can be disposed on the clip assembly 44. The light-emitting device can also be a combination of part or more of light-emitting device 48, light-emitting device 270, and light-emitting portion 311. While this embodiment uses light-emitting device 48 as an example, the following control method and control circuit are not limited to application to light-emitting device 270 and light-emitting portion 311, or to fastener drivers equipped with light-emitting device 270 and light-emitting portion 311.

[0195] Referring to the control circuit shown in FIG44 , it may include at least a parameter detection unit 51, a drive circuit 52, a controller 23, a light-emitting device 48, and a motor 421. The battery pack 115, serving as the power supply for the control circuit, can not only provide driving power for the motor 421 but also provide low-voltage power to the controller 53 after conversion by the power conversion unit, or provide power to the parameter detection unit 51, or provide power to the light-emitting device 48. This embodiment only illustrates the power supply path through which the battery pack 115 provides power to the motor 421; other possible power supply paths are not described in detail.

[0196] In one embodiment, the drive circuit 52 at least controls the power supply to the motor 421, and the controller 53 at least controls the operation of the motor 421. The drive circuit 52 is connected between the controller 53 and the motor 421 and can receive control signals output by the controller 53. By changing its own conduction state, it controls the operating state of the motor 421, such as stopping, rotating, rotating, rotating speed, or rotating direction. Optionally, the drive circuit 52 can be composed of one or more power elements. In one embodiment, as shown in Figure 44, the drive circuit 52 includes multiple power elements VT1, VT2, VT3, VT4, VT5, and VT6. Each gate terminal of each power element is electrically connected to the controller 53 for receiving control signals from the controller 53. Each drain or source terminal of each power element is connected to the stator winding of the motor 421. Power elements VT1-VT6 receive control signals from the controller 53 to change their respective conduction states, thereby changing the current applied by the battery pack to the stator winding of the motor 421. In one embodiment, the drive circuit 52 may be a three-phase bridge driver circuit including six controllable semiconductor power devices (e.g., field effect transistors (FETs), bipolar junction transistors (BJTs), insulated gate bipolar transistors (IGBTs), etc.). It is understood that the power components may also be any other type of solid-state switches, such as insulated gate bipolar transistors (IGBTs), bipolar junction transistors (BJTs), etc.

[0197] In order to rotate the motor 421, the drive circuit 52 has multiple drive states. In one drive state, the stator winding of the motor generates a magnetic field. The controller 53 outputs a corresponding pulse width modulation (PWM) control signal to the switching element in the drive circuit according to the rotor position or back electromotive force of the motor, so that the drive circuit switches the drive state, thereby causing the stator winding to generate a changing magnetic field to drive the rotor to rotate, thereby achieving rotation or phase change of the motor. It should be noted that any other circuit and control method that can drive the rotation or phase change of the motor can be used in the present disclosure. The present disclosure does not limit the circuit structure of the drive circuit 52 and the control of the drive circuit 52 by the controller 53.

[0198] The parameter detection unit 51 can at least detect the operating parameters of the motor 421, or detect the electrical parameters of the battery pack 115. In one embodiment, the parameter detection unit 51 can detect the output current, output voltage, or output power of the motor 421, or the operating time of the motor 421 in a nailing cycle, i.e., the time of the nailing cycle, or the nailing frequency, or the number of revolutions of the motor in a nailing cycle, etc. In one embodiment, the parameter detection unit 51 can also detect the battery parameters of the battery pack 115, such as detecting the output voltage, current, power consumption, or power consumption of the battery pack in a nailing cycle. It is understandable that the parameter detection unit 51 may include one or more detection devices that can detect multiple different operating parameters or battery parameters separately or simultaneously.

[0199] Referring to the control circuit of the nail gun shown in FIG45 , since some of the structures or components of this control circuit are the same as those in FIG44 , the circuit numbers in FIG45 follow those in FIG44 . This control circuit includes at least a first control circuit 54 that can control the operation of the light-emitting device 48, and a second control circuit 55 that controls the motor 421. The first control circuit 54 can at least independently control the lighting of the light-emitting device 48 when the motor 421 is not powered, that is, it can control the lighting of the light-emitting device 48 in advance when the motor 421 is not powered or is powered but not started. Lighting up the light-emitting device 48 before nailing can illuminate the workpiece or working environment in advance, allowing the user to have a better user experience. Even if the motor 421 fails to start, the lighting device 48 can still work.

[0200] In one embodiment, the first control circuit 54 and the second control circuit 55 can be arranged on the same circuit board. In one embodiment, the first control circuit 54 and the second control circuit 55 can also be arranged on different circuit boards.

[0201] Referring to the nail gun control circuit shown in FIG46 , the first control circuit 54 includes at least a lighting control switch 541 and a lighting circuit 542. When the lighting control switch 541 is operated by the user, it can conduct a current path between the lighting circuit 542 and the battery pack 115, thereby illuminating the lighting device 48. In this embodiment, the lighting control switch 541 can be a push button switch, a toggle switch, a membrane switch, a lever switch, a micro switch, a travel switch, etc. The second control circuit 55 is substantially identical to the control circuit in FIG44 . It controls the operation and shutdown of the motor 421 and can also be referred to as the main control circuit of the nail gun 400. In this embodiment, the second control circuit 55 includes a main switch 551, a drive circuit 52, and a controller 53. When the main switch 551 is operated by the user, it can conduct a current path between the controller 53, the drive circuit 52, and the motor 421. The controller 53 outputs a control signal to control the operation of the motor 421. Regarding the implementation of the controller 53 controlling the operation of the motor 421, reference can be made to the description of the control circuit shown in FIG44 , which will not be repeated here. It should be noted that the host switch 551 can also be a button switch, a toggle switch, a membrane switch, a lever switch, a micro switch, a travel switch, etc.

[0202] In other embodiments, the light control switch 541 may be considered not to belong to the first control circuit 54 but to be connected to the first control circuit 54. Alternatively, the host switch 551 may be considered not to belong to the second control circuit 55 but to be connected to the second control circuit 55. In other words, other methods of dividing the control circuits may be used, as long as they can achieve the corresponding functions.

[0203] In one embodiment, the nail gun 400 may include a travel switch (not shown). This travel switch functions as the aforementioned light control switch 541 when in a first travel position and as a main switch 551 when in a second travel position. In one embodiment, when the travel switch is in the second travel position, the controller 53 in the second control circuit 55 is turned on, but the motor 421 is not yet activated. When the travel switch is operated to a third travel position, the motor 421 is activated. In one embodiment, when the travel switch is operated to a fourth travel position, the controller 53 can perform specific control operations on the motor 421, such as controlling the motor 421 to operate at a constant speed.

[0204] In one embodiment, the light-emitting device 48 can be turned off by operating the light-emission control switch 541. Alternatively, the controller 53 in the second control circuit 55 can be used to de-energize the light-emitting circuit 542, thereby turning off the light-emitting device 48. In one embodiment, the controller 53 can also control the light-emitting circuit 542 to delay turning off, thereby delaying the extinguishing of the light-emitting device 48. It is understood that various components can be used to implement the functions of the light-emitting circuit 542, and this application does not limit the specific circuit structure of this circuit.

[0205] Continuing with FIG46 , the controller 53 can also control the light-emitting circuit 542 to change its circuit state based on the operating parameters of the motor 421 and / or the battery parameters of the battery pack 115 detected by the parameter detection unit 51, thereby enabling the light-emitting device 48 to change its light pattern to provide an alarm. The operating parameters of the motor 421 can include the output current, output voltage, output power, operating time of the motor 421 during a nailing cycle (i.e., the duration of the nailing cycle), nailing frequency, number of motor rotations during a nailing cycle, or temperature. Battery parameters can include the output voltage, current, power consumption, or temperature of the battery pack 115 during a nailing cycle. For example, if the controller 53 determines that the motor 421 is stalled based on its current, it can control the motor 421 to stop rotating and simultaneously control the light-emitting circuit 542 to change its circuit state, causing the light-emitting device 48 to flash and / or emit red light as an alarm. In this embodiment, the controller 53 can control the light emitting device 48 to issue an alarm by at least one of the following: the number of light emitting devices, the light color, the light frequency, the number of flashes, the brightness level, and the content of the light display. The controller 53 can also set an alarm based on the fault type or fault level.

[0206] Referring to Figures 47 and 48 , another control circuit for a nail gun is shown. Since this control circuit shares some of its structure and components with the control circuits in Figures 44 and 46 , the circuit reference numerals in Figures 47 and 48 follow those in Figures 44 and 46 . This control circuit differs from the control circuits in Figures 45 and 46 in that the motor's start-up state is also affected by the light control switch 541 .

[0207] In the related art, a nail gun is a nailing tool, which can be divided into mechanical nail guns and cylinder nail guns. Cylinder nail guns compress the volume of gas in the cylinder, using the pressure difference of the gas to drive the nail, while mechanical nail guns use elastic parts such as compressed springs to generate work to drive the nail. Generally, nail guns are equipped with LED lights for illumination or marking the nailing position, or they are equipped with a display screen that intelligently displays information such as the battery pack charge level and the nailing mode.

[0208] In this embodiment, the first control circuit 54 is capable of independently controlling the lighting device 48 to illuminate at least when the motor 421 is not powered. This means that the lighting device 48 is pre-activated when the motor 421 is not powered. Illuminating the lighting device 48 before nailing provides a better user experience by pre-illuminating the workpiece or work environment. Even if the motor 421 fails to start, the lighting device 48 can still operate. The first control circuit 54 includes at least a lighting control switch 541 and a lighting circuit 542. When the lighting control switch 541 is operated by the user, it connects the current path between the lighting circuit 542 and the battery pack 115, thereby illuminating the lighting device 48. In this embodiment, the lighting control switch 541 can be a push button switch, a toggle switch, a membrane switch, a lever switch, a micro switch, a travel switch, or the like.

[0209] Continuing with the nail gun 400 shown in Figures 38 and 39, in addition to the main switch 551, it also includes a push rod switch 552. The push rod switch 552 serves as a safety switch and is located at the lower end of the firing assembly 46. When the user pushes the nail gun 400 downward in the nailing direction, i.e., in the direction of the second straight line 402, the push rod switch 552 abuts against the workpiece, thereby turning on the push rod switch 552, i.e., triggering the push rod switch 552. In this embodiment, the nail gun 400 also includes a guide assembly 414. The guide assembly 414 can be attached to the housing 41 or located on the housing 41 so as to partially or completely cover the firing assembly 46 and at least guide the firing assembly 46 in the nailing direction. It is understood that the lower end of the guide assembly 414 can serve as a nail outlet. There is a height difference between the lower end of the push rod switch 552 and the lower end of the guide assembly 414. When the push rod switch 552 first contacts the workpiece, there is still a height difference between the lower end of the guide assembly 414 and the workpiece.

[0210] The drive circuit 52 at least controls the power supply to the motor 421. The controller 53 controls the operation of the motor 421. In this embodiment, the host switch 551 at least powers the controller 53. This can be understood as when the host switch 551 is triggered, a current path is established between the battery pack 115 and the controller 53. The drive circuit 52 is connected between the controller 53 and the motor 421. The host switch 551 and the push-rod switch 552 jointly control the power supply to the drive circuit 52. When the host switch 551 and the push-rod switch 552 are respectively triggered and maintained in the triggered state, the drive circuit 52 is energized, and the motor 421 is energized. That is, when the host switch 551 and the push-rod switch 552 are simultaneously in the triggered state, the current path between the battery pack 115 and the drive circuit 52, the current path between the battery pack 115 and the motor 421, and the motor is energized but not started.

[0211] The controller 53 is configured to control the motor 421 to start when it determines that the motor is powered on and the light control switch 541 is triggered. That is, after the drive circuit 52 is powered on and the light control switch 541 is triggered, the controller 53 sends a start signal to the motor. After the motor 421 is powered on and receives the start signal, the motor 421 starts operating in response to the parameters of the start signal. After receiving the power-on control signal from the drive circuit 52 and the signal that the light control switch 541 is triggered, the controller 53 outputs the start signal to the motor 421.

[0212] In this embodiment, the controller 53 controls the motor 421 to start when it determines that the light control switch 541, the main switch 551, and the push-rod switch 552 are all triggered and remain in the triggered state. Upon receiving signals indicating that the light control switch 541, the main switch 551, and the push-rod switch 552 are all triggered, the controller 53 outputs a start signal to the motor. In this embodiment, the first control circuit 54 independently controls the light-emitting device. In this embodiment, a detection circuit 531 is provided, connecting the first control circuit 54 and the controller 53. Upon receiving a signal indicating that the first control circuit 54 is turned on, the detection circuit 531 outputs a corresponding response signal to the controller 53. Optionally, the detection circuit 531 is configured to detect that the light control switch 541 is triggered and transmit a corresponding response signal to the controller 53. The controller 53 is connected to the drive circuit 52 and the detection circuit 531. Upon receiving a power-on signal from the drive circuit 52 and a response signal from the detection circuit 531, the controller 53 outputs a start signal to the motor 421. By setting up a circuit that can independently control the light-emitting device, the light-emitting device can be turned on in advance before the motor starts. During the process of starting the motor, the switch of the light-emitting device is controlled in conjunction, making the switch of the light-emitting device a necessary condition for starting the motor, thereby making the starting of the nail gun safer.

[0213] In some embodiments, the detection circuit 531 is an independent circuit or control chip for detecting the trigger state of the light control switch 541. In some embodiments, the detection circuit 531 is a detection module within the controller 53 for collecting the signal or current of the light control switch 541.

[0214] In some embodiments, the activation sequence of the host switch 551 and the push switch 552 does not affect the power-on of the driving circuit 52. In some embodiments, when the host switch 551 and the push switch 552 are activated in a specified sequence, the driving circuit 52 is powered on.

[0215] In this embodiment, as shown in FIG49 , a lighting control switch 541 is also disposed within the grip portion, adjacent to the main unit switch 551. A trigger 5121 is disposed on the grip portion, movably coupled to the grip portion 413 to allow for movement of the trigger 5121 relative to the grip portion 413 housing. The lighting control switch 541 and the main unit switch 551 are located behind the trigger 5121, and the lighting control switch 541 is configured to be activated by the trigger 5121. The lighting control switch 541 is also configured to be activated by the trigger 5121 before the main unit switch 551. This allows the lighting device 48 to be illuminated before the motor 421 is activated, thereby facilitating illumination of the work area.

[0216] Illustratively, in the front-to-back direction, the host switch 551 is farther away from the trigger 5121 relative to the lighting control switch 541, so that during the rotation or movement of the trigger 5121, it will first contact the lighting control switch 541 to light up the lighting element 196, and then contact the host switch 551 to start the fastener driver 100.

[0217] In some cases, the user can operate the trigger 5121 to rotate or move only a small angle or distance and maintain the position of the trigger 5121, so that the trigger 5121 can only trigger the lighting control switch 541 without triggering the host switch 551, thereby only lighting the lighting element 196 to illuminate the working area.

[0218] In some embodiments, the activation order of the lighting control switch 541, the main unit switch 551, and the push-rod switch 552 does not affect the activation of the motor 421. In some embodiments, when the lighting control switch 541, the main unit switch 551, and the push-rod switch 552 are activated in a prescribed order, the controller 53 controls the motor 421 to activate. Exemplarily, when a user sequentially activates the lighting control switch 541, the main unit switch 551, and the push-rod switch 552, the controller controls the motor 421 to activate. Exemplarily, the user activates the main unit switch 551 and the push-rod switch 552 to energize the drive circuit 52, and then activates the lighting control switch 541. After the controller detects that the drive circuit 52 is energized and then detects the triggering status of the three switches, it controls the motor 421 to activate.

[0219] In one embodiment, the first control circuit 54 and the driving circuit 52 may be disposed on the same circuit board. In one embodiment, the first control circuit 54 and the driving circuit 52 may also be disposed on different circuit boards.

[0220] The controller 53 can also control the lighting circuit 542 to change its circuit state based on the operating parameters of the motor 421 and / or the battery parameters of the battery pack 115 detected by the parameter detection unit 51, so that the lighting device 48 can change its lighting pattern to provide an alarm. The operating parameters of the motor 421 can include the output current, output voltage, output power, operating time of the motor 421 during a nailing cycle (i.e., nailing frequency), number of motor rotations during a nailing cycle, or temperature. Battery parameters can include the output voltage, current, energy consumption, power consumption, or temperature of the battery pack 115 during a nailing cycle. For example, if the controller 53 determines that the motor 421 is stalled based on the current of the motor 421, it can control the motor 421 to stop rotating and simultaneously control the lighting circuit 542 to change its circuit state, causing the lighting device 48 to flash and / or emit red light as an alarm. In this embodiment, the controller 53 can control the lighting device 48 to provide an alarm by at least one of the following: the number of light-emitting devices, the color of the light, the frequency of the light, the number of flashes, the brightness level, and the content of the light display. The controller 53 can also set an alarm based on the fault type or fault level. By incorporating a triggering check on the light control switch 541 when the motor starts, the light-emitting device is also activated when the motor starts, further reducing the risk of accidental activation. Furthermore, the light-emitting device can start independently while maintaining synchronization with the motor, further enhancing the prompt and alarm functions of the light-emitting device.

[0221] In one embodiment, the controller 53 can also control the light-emitting device 48 to display different prompt information after determining the relationship between the air pressure in the cylinder 43 and the air pressure threshold. For example, when the air pressure is lower than the low pressure threshold, the cylinder 43 may have an air leakage problem, and the controller 53 can control the light-emitting device 48 to output prompt information in a first manner, wherein the first manner may include at least one of the number of light-emitting devices, light-emitting color, light-emitting frequency, brightness level, and light-emitting display content. When the air pressure is substantially equal to the air pressure threshold, the controller 53 can control the light-emitting device 48 not to emit light or to emit light in a second manner that is different from the first manner. When the air pressure is greater than the air pressure threshold, the controller 53 can control the light-emitting device 48 to emit light in a second manner that is different from the first and second manners. Similarly, the determination or warning method of the spring elastic force can also refer to the determination or warning method of the air pressure in the cylinder 43, which will not be repeated here.

[0222] Referring to the control circuit of the light-emitting device shown in FIG50 , some units or devices therein are identical to those in FIG44 , and the reference numerals therein are also used. The parameter detection unit 51 may include a sensor capable of detecting the total number of nails in the clip assembly 44 or the number of nails remaining, or a sensor capable of detecting the depth of driven nails, or a sensor capable of detecting the driving force, etc. This embodiment does not specifically limit the type, installation location, or operating mode of the various sensors.

[0223] The controller 53 can obtain information transmitted by the parameter detection unit 51 and then control the light-emitting device 48 to display first information about the nails in the clip assembly 44 and / or second information about the nails that have been driven. In one embodiment, the first information may include the specific number of nails remaining in the clip assembly 44, or the range of the number of remaining nails, or an alarm message when the number of remaining nails is less than a preset number. The second information may include the driving depth of the driven nails, the driving force, the driving angle, the driving interval, etc. A display screen may also be included. The digital tube may display the first information and / or the second information using one or more methods such as light intensity, flash frequency, number of flashes, light color, and light quantity. The display screen can directly display content data, while the light-emitting device 48 can display a graphic and number of nails, or display an actual image or depth of the driven nails, or display a nailing animation. Any light-emitting device capable of displaying the above information, regardless of whether it is a digital tube or a display screen, falls within the scope of protection of this application.

[0224] In one embodiment, the controller 53 can also display the fault information of the nail gun 400 or the current operating mode or battery pack information. The fault information may include various common faults, such as overtemperature, overvoltage, undervoltage, overcurrent, stall, anti-lock braking, etc. The operating mode may include a single-shot mode and a single-drive mode, and a continuous-shot mode is a continuous-drive mode. The battery information may include the remaining power or remaining time of the battery pack, or the output voltage, or the output current, or the temperature, etc. In this embodiment, the light-emitting device 48 can also display the above-mentioned fault information or operating mode or battery pack information by at least one of the following methods: light intensity, flash frequency, number of flashes, light color, light quantity, and display content data.

[0225] In one embodiment, the light-emitting device 48 can be divided into a lighting device and a fault indication device. In some embodiments, the lighting device and the fault indication device can be the same device or different devices. If the lighting device and the fault indication device are the same lighting device, when the nail gun 400 is not faulty, the lighting device 48 remains constantly on. When a fault occurs, the lighting device 48 can indicate the fault by flashing a certain frequency, color, number of flashes, or fault code, or by turning off the lighting device. If the lighting device and the fault indication device are different lighting devices, when the nail gun 400 is not faulty, the lighting device can remain constantly on, while the fault indication device can remain permanently off. When a fault occurs, the lighting device can remain constantly on or off, and the fault indication device can indicate the fault in the manner described above. If the lighting device and the fault indication device are different lighting devices, when the nail gun 400 is not faulty, the lighting device and the fault indication device can remain constantly on, and when a fault occurs, the lighting device can remain constantly on or off, and the fault indication device can turn off to indicate the fault or indicate the fault in the manner described above. In one embodiment, the fault indicator device may indicate the fault level by light color and / or flashing frequency when or after indicating the fault type. For example, a green light may be permanently on when there is no fault, a yellow light may be on or flashing when there is a minor fault (such as undervoltage protection or overtemperature protection), and a red light may be on or flashing when there is a major fault (such as overcurrent protection, stall protection, or anti-lock braking protection).

[0226] In one embodiment, the parameter detection unit 51 may be a brightness sensor or other sensor capable of detecting the light intensity in the nail gun's operating environment. The controller 53 may control whether the light-emitting device 48 is illuminated or the light intensity thereof based on the detected light intensity. For example, when working outdoors during daytime in good weather, the light-emitting device 48 may be turned off, or at least the lighting device may be turned off. When working indoors in dim light, the brightness of the light-emitting device may be increased, or at least the brightness of the lighting device may be enhanced.

[0227] The above shows and describes the basic principles, main features and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of this application.

Claims

1. A fastener driver, comprising: A striking assembly including a firing pin configured to strike a fastener; A magazine for accommodating the fastener; Wherein, 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 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, wherein, 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 a part of the trigger assembly is configured to move along a first straight line, the trigger assembly includes an obstructing 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, further comprising an elastic member, when the lifting assembly applies a first acting force to the stopper and the obstructing 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, wherein, 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 a part of an induction device that enables the trigger assembly to switch between the first state and the second state.

11. The fastener driver according to claim 1, wherein, 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-rear direction limits the amplitude of the second movement of the stopper.

13. The fastener driver according to claim 12, wherein, In the front-rear 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.

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

15. A fastener driver, comprising: A striking assembly including a firing pin configured to strike a fastener; A magazine for accommodating the fastener; wherein, 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.

16. The fastener driver according to claim 15, wherein, 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.

17. A fastener driver, comprising: A striking assembly including a firing pin configured to strike a fastener; A magazine for accommodating the fastener; wherein, 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 is configured to drive the stopper to switch to the anti-dry-fire state; An elastic member in abutment with the stopper; When the trigger assembly is in the first state and the trigger assembly impedes 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.

18. The fastener driver according to claim 17, wherein, At least part of the trigger assembly is configured to move along a first straight line, the trigger assembly includes an obstructive portion in the circumferential direction of the first straight line and a trigger portion extending substantially perpendicular to the first straight line.

19. The fastener driver according to claim 17, wherein, The trigger assembly includes a receiving chamber that receives at least part of an induction device that enables the trigger assembly to switch between the first state and the second state.

20. The fastener driver according to claim 17, 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.

21. A nail gun, comprising: A housing; A motor disposed in the housing; A firing assembly configured to move from an initial position to a firing position within a nail driving cycle to drive a nail into a workpiece and move from the firing position to the initial position; At least one light-emitting device disposed on the housing; A drive circuit for at least controlling the energization of the motor; A first control circuit configured to independently control the light-emitting device at least when the motor is not started; A light-emitting control switch, connected to the first control circuit; A controller, at least controlling the operation of the motor; the controller is configured to: upon receiving a signal that the motor is powered on and the light-emitting control switch is triggered, control the motor to start.

22. The nail gun according to claim 21, further comprising a main machine switch, the main machine switch at least controlling the power-on of the controller.

23. The nail gun according to claim 22, further comprising a push rod switch, the push rod switch being disposed at the lower end of the firing assembly, and when the push rod switch abuts against the workpiece, the push rod switch is triggered.

24. The nail gun according to claim 23, wherein, When the main machine switch is triggered and the push rod switch is triggered, the drive circuit is connected and the motor is powered on.

25. The nail gun according to claim 23, wherein, When the light-emitting control switch, the main machine switch, and the push rod switch are all triggered, the motor is controlled to start.

26. The nail gun according to claim 21, further comprising a detection circuit, the detection circuit being used to detect that the light-emitting control switch is triggered.

27. The nail gun according to claim 26, wherein, The detection circuit sends a corresponding signal that the light-emitting control switch is triggered to the controller.

28. The nail gun according to claim 27, wherein, The controller is configured to control the motor to start according to the states of the drive circuit and the detection circuit.

29. The nail gun according to claim 21, wherein, When the light-emitting device is lit, the motor is not necessarily powered on.

30. The nail gun according to claim 21, wherein, The first control circuit and the drive circuit are disposed on the same circuit board.

31. The nail gun according to claim 21, wherein, The first control circuit and the drive circuit are disposed on different circuit boards.

32. The nail gun according to claim 21, wherein, The nail gun further comprises a parameter detection unit, configured to be able to detect the operating parameters of the motor and / or the battery parameters of the battery pack that powers the nail gun.

33. The nail gun according to claim 30, wherein, The controller is configured to, when determining that the nail gun has a fault according to the operating parameters and / or the battery parameters, at least be able to control the light-emitting device to change the light-emitting form for alarm and prompt.

34. The nail gun according to claim 31, wherein, The light-emitting device is configured to perform alarm and prompt in at least one of the forms of the number of light-emitting devices, light-emitting color, light-emitting frequency, number of flashes, brightness level, and content of light-emitting display.

35. The nail gun according to claim 22, wherein, The housing further forms a handle portion for the user to hold, the light-emitting control switch and the main machine switch are respectively disposed within the handle portion, and the light-emitting control switch and the main machine switch are disposed adjacent to each other.

36. A nail gun, comprising: A housing; A motor, disposed within the housing; A firing assembly, configured to be able to move from an initial position to a firing position within a nail driving cycle to drive a nail into a workpiece, and move from the firing position to the initial position; At least one light-emitting device, disposed on the housing; A drive circuit, at least controlling the power-on of the motor; A first control circuit, configured to independently control the light-emitting device at least when the motor is not started; A controller, at least controlling the operation of the motor; A detection circuit, connecting the first control circuit and the controller; the controller is configured to: control the motor to start according to the states of the drive circuit and the detection circuit.

37. A nail gun, comprising: A housing; A motor, disposed within the housing; A firing assembly, configured to be able to move from an initial position to a firing position within a nail driving cycle to drive a nail into a workpiece, and move from the firing position to the initial position; At least one light-emitting device, disposed in the housing; A light-emitting control switch, at least controlling the state of the light-emitting device; A controller, at least controlling the operation of the motor; A main switch, at least controlling the power-on of the controller; A push rod switch, disposed at the lower end of the firing assembly, and when the push rod switch abuts against the workpiece, the push rod switch is triggered; The controller is configured to: when receiving signals that the light-emitting control switch, the main switch, and the push rod switch are all triggered, control the motor to start.

38. The nail gun according to claim 37, further comprising a first control circuit, configured to independently control the light-emitting device to work at least when the motor is not started.

39. The nail gun according to claim 38, wherein, The light-emitting control switch is connected to the first control circuit, and the first control circuit is connected to the controller.

40. The nail gun according to claim 37, wherein, The controller is configured to: when receiving signals that the light-emitting control switch, the main switch, and the push rod switch are all triggered and remain in the triggered state, control the motor to start.

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