Fastener driver

Abstract

The invention discloses a fastener driver which comprises a firing pin, a driving device and a driving device. The transmission mechanism is arranged to drive the firing pin to move backwards at least to the stop position; the motor is arranged to at least drive the transmission mechanism; the controller is connected with the motor; the detection mechanism is connected with the controller, and the detection mechanism is arranged to detect the position of one moving part and send out a detection signal to allow the controller to send out a control signal when the moving part is in a first preset position range; wherein when the moving part reaches a second preset position before the stopping position, or when the moving part reaches a first preset time before the stopping position, the controller sends out a control signal to control the motor to rotate by a preset number of turns or brake after the second preset time. The fastener driver is safe and convenient to use.

Description

Technical Field

[0001] The present application relates to the field of electric tools, and in particular to a fastener driver. Background Art

[0002] A fastener driver in the related art is usually used to fix a workpiece. The user shoots the fastener into the workpiece to fix the workpiece. In the existing fastener driver, the fastener driver shoots out a fastener in each striking cycle. The fastener driver generally includes a striker that strikes the fastener and a transmission mechanism that drives the striker to move. At the end of each striking cycle, the striker stops at a stop position. However, as the fastener driver wears during use, the stop position will change, which may easily cause danger and is inconvenient to use.

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

[0004] An object of the present application is to solve or at least alleviate part or all of the above problems. To this end, an object of the present application is to provide a fastener driver that is convenient and safe to use.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions: A fastener driver, when a moving part reaches a second preset position before a stop position, or at a first preset time before the moving part reaches a stop position, a controller sends a control signal to control a motor to rotate a preset number of circles or brake after a second preset time.

[0006] In some embodiments, the fastener driver includes: a striker, configured to output an impact force to drive the fastener into a workpiece; a transmission mechanism, configured to drive the striker to move backward at least to a stop position; a motor, configured to at least drive the transmission mechanism; a controller, connected to the motor; a detection mechanism, connected to the controller, the detection mechanism being configured to detect the position of a moving part and to send a detection signal when the moving part is in a first preset position range to allow the controller to send a control signal.

[0007] In some embodiments, the transmission mechanism includes a driving member including a plurality of driving teeth configured to engage with the striker to drive the striker.

[0008] In some embodiments, the first preset position range has a first boundary position, defining that when the center point of the moving part is at the stop position and the first boundary position, the angle formed by the rotation point of the driving part as the vertex is greater than or equal to 10 degrees and less than or equal to 60 degrees.

[0009] In some embodiments, the striker includes a main body extending along a first straight line direction and a plurality of meshing teeth arranged on the main body, the plurality of meshing teeth including a first meshing tooth that stops the striker in a stop position, the plurality of driving teeth including a first driving tooth arranged to mesh with at least the first meshing tooth, and the angle between the center point of the moving part and the center point of the first driving tooth with the rotation center of the driving part as the vertex is greater than or equal to 5 degrees and less than or equal to 30 degrees.

[0010] In some embodiments, the moving member is a magnetic element.

[0011] In some embodiments, the surface magnetic field strength of the magnetic element is greater than or equal to 2800 Gs and less than or equal to 3600 Gs.

[0012] In some embodiments, the first preset time is greater than or equal to 20 ms and less than or equal to 30 ms. In some embodiments, the preset number of turns is greater than or equal to 1 turn and less than or equal to 5 turns.

[0013] In some embodiments, the second preset time is greater than or equal to 4 ms and less than or equal to 20 ms.

[0014] In some embodiments, the travel distance of the striker from reaching the first preset position range to moving to the stop position is greater than or equal to 4 mm and less than or equal to 10 mm.

[0015] The present application is beneficial in that the fastener driver is easy to use and highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of a fastener driver according to one embodiment of the present application; Figure 2 yes Figure 1 A left side view of a fastener driver in FIG. Figure 3 yes Figure 1 A front view of a fastener driver in FIG. Figure 4 yes Figure 3 A cross-sectional view of the fastener driver along the x1 plane; Figure 5 yes Figure 1 A front view of the transmission mechanism and housing of the fastener driver; Figure 6 yes Figure 5 A cross-sectional view of the transmission mechanism and the housing along the x2 plane; Figure 7 yes Figure 5 A cross-sectional view of the transmission mechanism and the housing along the x3 plane; Figure 8 yes Figure 1A top view of a striking assembly and a driving member of a fastener driver in FIG. Fig. 9 yes Figure 1 A front view of a striking assembly and a driving member of a fastener driver; Fig.10 yes Fig. 9 A cross-sectional view of the striking assembly and the driving member of the fastener driver along the x4 plane when the fastener driver is at the bottom dead center position; Fig.11 yes Fig. 9 A cross-sectional view of the striking assembly and the driving member of the fastener driver along the x4 plane when the fastener driver is at the top dead center position; Fig.12 yes Figure 1 A schematic diagram of a first meshing tooth and a first driving tooth of a fastener driver in the top dead center position, a parking position, a switching position and a bottom dead center position; Fig.13 yes Figure 1 A schematic diagram showing the relationship between the travel distance of the striker of the fastener driver from the bottom dead center position to the top dead center position and the driver torque, angle a, lever arm and force F; Fig.14 yes Figure 1 A three-dimensional diagram of the transmission mechanism, moving parts, detection mechanism and guide assembly of the fastener driver; Fig.15 yes Figure 1 A top view of the transmission mechanism, moving parts, detection mechanism and guide assembly of the fastener driver; Fig.16 yes Figure 1 A top view of the striking assembly and the driving member of the fastener driver in the top dead center position; Fig.17 yes Figure 1 A side view of a transmission mechanism, a moving part, a detection mechanism and a guide assembly of a fastener driver; Fig.18 yes Figure 1 A schematic diagram of a moving member of a fastener driver, a detection mechanism and a driving member within a first preset position range; Fig.19 yes Figure 1 A perspective view of a support frame and an energy storage device of a fastener driver; Fig. 20 yes Figure 1 A perspective view of a support frame, an energy storage device and a second guide member of a fastener driver; Fig.21 yes Figure 1 A bottom view of a support frame, an energy storage device and a second guide member of a fastener driver; Fig. 22 yes Figure 1 A perspective view of a support frame of one embodiment of a fastener driver in FIG. Fig.23 yes Figure 1 A perspective view of a support frame, an energy storage device and a guide assembly of an embodiment of a fastener driver; Fig.24 yes Figure 1 A bottom view of a support frame, an energy storage device and a guide assembly of one embodiment of a fastener driver; Fig.25 yes Figure 1 An energy storage device of a fastener driver and a cross-sectional view at the top dead center position and the bottom dead center position; Fig.26 yes Figure 1 A top view of a strike assembly of a fastener driver; Fig. 27 yes Figure 1 A top view of an energy storage device and a striking assembly of a fastener driver; Fig.28 yes Figure 1 A cross-sectional view of the energy storage device of the fastener driver along the x5 plane; Fig.29 yes Figure 1 A perspective view of the magazine and anti-dry hitting assembly of the fastener driver in the embodiment; Fig.30 yes Figure 1 A side view of the magazine and runaway assembly of the fastener driver; Fig.31 yes Figure 1 A cross-sectional view of the anti-dry hitting assembly of the fastener driver and a portion of the magazine; Fig.32 yes Figure 1 A front view of a portion of a runaway prevention assembly of a fastener driver; Fig.33 yes Figure 1 An exploded view of the fastener drive magazine and anti-aircraft hit assembly at an angle; Fig.34 yes Figure 1 An exploded view of the fastener drive magazine and anti-aircraft hit assembly at another angle; Fig.35 yes Figure 1 A top view of a fastener driver in FIG. Fig.36 yes Figure 1 A partial enlarged view of a vent portion of a fastener driver; Fig.37 yes Figure 1A schematic diagram of a striking assembly of a fastener driver in the inflation position, the ready position, the parking position and the bottom dead center position; Fig.38 yes Figure 1 A flow chart of the energy storage device of the fastener driver during inflation; Fig.39 yes Figure 1 A perspective view of an inflator adapter and a filter suitable for use with the fastener driver in the embodiment of the present invention; Fig.40 yes Figure 1 A cross-sectional view along one plane of an inflator adapter and a filter adapted for use with a fastener driver; Fig.41 yes Figure 1 An exploded view of an inflator adapter and filter suitable for use with the fastener driver in the embodiment; Fig.42 yes Figure 1 a side view of a valve with a fastener driver in the embodiment of the present invention; Fig.43 yes Figure 1 a cross-sectional view of a valve of a fastener driver in FIG. Fig.44 yes Figure 1 A cross-sectional view along another plane of an inflatable adapter to which the fastener driver is applicable; Fig.45 yes Figure 1 A plan view of an inflatable adapter and a gauge suitable for use with the fastener driver in the embodiment; Fig.46 yes Figure 1 A perspective view of a housing and magazine of a fastener driver in FIG. Fig.47 yes Figure 1 a left side view of the housing and magazine of the fastener driver in; Fig.48 yes Figure 1 A cross-sectional view of the housing and magazine of the fastener driver along plane x6; Fig.49 yes Fig.48 A partial enlarged view of the housing and magazine of the fastener driver; Fig.50 is a rear view of a fastener driver in one embodiment of the present application; Fig.51 yes Fig.50 A left side view of a fastener driver in FIG. Fig.52 yes Fig.51 A cross-sectional view of the fastener driver along the x7 plane; Fig.53 yes Fig.51A cross-sectional view of the fastener driver along the x8 plane; Fig.54 yes Fig.50 A rear view of an energy storage device, a gear box, a motor, a trigger and a coupling of a fastener driver; Fig.55 yes Fig.50 A partial enlarged view of the first housing and the second housing of the fastener driver; Fig.56 is a left side view of a fastener driver in one embodiment of the present application; Fig.57 yes Fig.56 An exploded view of the fastener drive magazine at an angle; Fig.58 yes Fig.56 An exploded view of the fastener drive magazine at another angle; Fig.59 is a perspective view of a fastener driver in one embodiment of the present application; Fig.60 yes Fig.59 An exploded view of a guide assembly, a striker and a fastener of a fastener driver at an angle; Fig.61 yes Fig.59 A partial enlarged view of a first guide member of the fastener driver; Fig.62 yes Fig.59 A perspective view of a first guide member, a striker and a fastener of a fastener driver; Fig.63 yes Fig.59 A schematic diagram of a guide assembly, a firing pin and a fastener of a fastener driver; Fig.64 yes Fig.59 An exploded view of the guide assembly, firing pin and fastener of the fastener driver in another angle; Fig.65 yes Fig.59 A left side view of a guide assembly, a fastener and a lift member of a fastener driver; Fig.66 yes Fig.65 A partial enlarged view of the guide assembly and fastener of the fastener driver in FIG. DETAILED DESCRIPTION

[0017] Before any embodiments of the 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 above drawings.

[0018] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0019] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0020] In the present 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, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0021] In this application, it will be understood by those of ordinary skill 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 tolerances caused by manufacturing, assembly, and use associated with a specific value, etc. 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%, 5%, 10% 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, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0022] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0023] 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 another element "upper" or "lower", but also indirectly connected to another 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, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0024] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit or multiple units.

[0025] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0026] 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.).

[0027] The technical solution of the present application is further explained below in conjunction with the accompanying drawings and through specific implementation methods.

[0028] like Figure 1 and Figure 2As shown, this embodiment provides a fastener driver 100. The fastener driver 100 provided in this embodiment is a pre-filled double-cylinder fastener driver. The fastener driver may also be a single-cylinder fastener driver, a double-cylinder fastener driver, a pre-filled fastener driver, a non-pre-filled fastener driver, a spring-type fastener driver, etc., which are not limited here. The fastener driver 100 can generate an impact force on the fastener 10, thereby shooting the fastener 10 into the workpiece. The fastener driver 100 includes a housing 110 and a magazine 120. The housing 110 includes a main housing 111, a transmission part 112 and a gripping part 113 for a user to hold. The magazine 120 is used to accommodate the fastener 10, and at least part of the magazine 120 is arranged outside the housing 110. The fastener 10 provided in this embodiment is a nail. The size of the nail can be 15Ga, 16Ga, 18Ga, 23Ga, 25Ga, etc., which are not limited here. The use angle of the nail can be 0 degrees, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, etc., which are not limited here. The nail can be a straight nail, a U-shaped nail, etc., which are not limited here.

[0029] 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 fastener driver 100 includes a coupling portion 114. The other end of the grip 113 is connected to the coupling portion 114, and the coupling portion 114 is used to connect to a DC or AC power supply. In this embodiment, the coupling portion 114 is detachably mounted with a battery pack 115, and the specifications and power of the battery pack 115 are not limited here.

[0030] like Figure 3 to Figure 4 As shown, 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. The striker 131 outputs striking force to the fastener 10 to drive the fastener 10 into the workpiece. The energy storage device 150 drives the striker 131 to move forward to output striking force. The transmission mechanism 140 drives the striker 131 to move backward to store energy for the energy storage device 150. A receiving space is formed inside the main housing 111 to accommodate at least part of the energy storage device 150 and the striking assembly 130. The main housing 111 supports at least part of the energy storage device 150. The motor 160 at least drives the transmission structure. The battery pack 115 provides energy for the motor 160. A receiving space is formed inside the transmission part 112. At least part of the motor 160 and the transmission mechanism 140 are accommodated in the transmission part 112. The transmission part 112 supports at least part of the motor 160 and the transmission mechanism 140.

[0031] like Figures 3 to 7As shown, in this embodiment, the motor 160 is an electric motor. The motor 160 includes a motor output shaft 161. The transmission mechanism 140 includes a gear set 141 and a driving member 142. The motor output shaft 161 drives the gear set 141 to rotate. The gear set 141 includes a gear set output shaft 1411. The gear set output shaft 1411 drives the driving member 142 to move. The driving member 142 drives the striker 131 to move. The gear set 141 includes a multi-stage planetary gear, and the multi-stage planetary gear includes at least two stages of planetary gears. Each stage of the planetary gear adopts the same number of teeth, module, size and transmission ratio to reduce manufacturing costs.

[0032] The transmission part 112 is fixed by screws 112a. In the transmission part 112, the distance between the gear set 141 and the motor 160 in the vertical direction is large, so that the screws 112a can be retracted radially inwardly along the transmission part 112. Part of the screws 112a is located between the gear set 141 and the motor 160, making full use of the space between the gear set 141 and the motor 160, reducing the radial size of the transmission part 112, and the outer surface will not be raised due to the installation of the screws 112a, which is beautiful, simple, and low-cost.

[0033] The fastener driver 100 includes an air inlet 1121. There may be multiple air inlets 1121. In the present embodiment, the air inlet 1121 is disposed between the transmission portion 112 and the coupling portion 114. The air inlet 1121 is disposed between the motor 160 and the PCB board, making full use of the space of the housing 110 and improving the heat dissipation efficiency of the motor 10. The air inlet 1121 is a hole, and the hole is in a strip shape. The housing 110 is formed with a dustproof structure bent toward the inside of the housing 110 at the air inlet 1121 to prevent dust from entering the fastener driver 100. In some embodiments, the air inlet 1121 may also be used for air outlet.

[0034] The fastener driver 100 includes a trigger rod 121. The trigger rod 121 is connected to a safety switch, and when the trigger rod 121 is triggered, the safety switch is turned on. When the safety switch is turned on, when the user presses the trigger 1131, the firing pin 131 ejects a fastener 10. The firing pin 131 stays at a stop position after completing the firing, waiting for the user to press the trigger 1131 next time to fire the next fastener 10. In some embodiments, when the trigger 1131 is pressed, each time the safety switch is turned on, the firing pin 131 fires a fastener 10. After the firing pin 131 completes a firing, the fastener 10 in the magazine 120 is replenished to the front end of the firing pin 131, waiting to be fired by the firing pin 131. The firing assembly 130 reciprocates under the drive of the transmission mechanism 140 and the energy storage device 150 to continuously and sequentially fire the fasteners 10. In each firing cycle, the fastener driver 100 ejects a fastener 10.

[0035] The striking assembly 130 also includes a piston 122. The striker 131 is mounted on the piston 122, and the piston 122 is basically located behind the striker 131. The energy storage device 150 includes a first cylinder 151. The first cylinder 151 accommodates at least a portion of the piston 122, and allows the piston 122 and a portion of the striker 131 to reciprocate in the first cylinder 151. 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 dynamic potential energy, and the striking assembly 130 outputs a striking force.

[0036] The main shell 111 includes a heat dissipation area 1111, which is a hollow area on the main shell 111. The outer surface of the first cylinder 151 exchanges heat with the air through the heat dissipation area 1111 to improve the heat dissipation efficiency. There can be multiple heat dissipation areas 1111. The heat dissipation area 1111 is located in the rear half of the main shell 111. In this embodiment, at least 80% of the area of ​​the heat dissipation area 1111 allows the outer surface of the rear half of the first cylinder 151 to contact the air, so as to dissipate the heat of the part of the first cylinder 151 that is more obviously heated. There are two heat dissipation areas 1111, which are respectively located on the left and right sides of the main shell 111, and have basically the same shape and position.

[0037] like Figures 8 to 12 As shown, the striker 131 includes a main body 132 and a plurality of meshing teeth 133. The plurality of meshing teeth 133 are disposed on the main body 132. The main body 132 is configured to extend along the direction of the first straight line 101. The striker 131 moves along the first straight line 101 to output striking force to the fastener 10. It should be noted that the first straight line 101 is a virtual line, and the direction of the first straight line 101 is the front-rear direction indicated by the first straight line 101. The direction of the first straight line 101 is the direction in which the fastener 10 is shot into the workpiece.

[0038] A plurality of meshing teeth 133 are arranged on the striker 131 at substantially equal intervals along the length direction of the striker 131. The plurality of meshing teeth 133 protrude from the main body 132 and are wavy in shape as a whole. The plurality of meshing teeth 133 include a first meshing tooth 134. The first meshing tooth 134 stops the striker 131 at a stop position. The striker 131 includes a tip 1311 and an end 1312 along the length direction, the end 1312 being mounted to the piston 122, and the tip 1311 being in contact with the fastener 10 when the striker 131 strikes the fastener 10. The first meshing tooth 134 is the tip 1311 closest to the striker 131 among the plurality of meshing teeth 133. In some embodiments, at least one of the plurality of meshing teeth 133 is shark fin-shaped. The first meshing tooth 134 is thicker than the remaining plurality of meshing teeth 133. The first meshing tooth 134 may also be coated or plated with a coating.

[0039] The driving member 142 includes driving teeth 143. There are a plurality of driving teeth 143, and the plurality of driving teeth 143 mesh with the plurality of meshing teeth 133 to drive the striker 131 to move backward. The driving member 142 rotates around the second straight line 102, and the second straight line 102 is a rotation point C when viewed from above. The numbers of the rotation point C at different positions are represented by C1, C2, and C3 in the accompanying drawings. The driving member 142 is a driving wheel that rotates around the second straight line 102, that is, around the rotation point C when viewed from above. The driving member 142 includes a first fixed layer 144 and a second fixed layer 145 that are arranged substantially in parallel. A plurality of driving teeth 143 are arranged substantially equidistantly between the first fixed layer 144 and the second fixed layer 145 in the circumferential direction. The first fixed layer 144 and the second fixed layer 145 are plates with a certain thickness. The plurality of driving teeth 143 are cylindrical, and the two ends of the cylinder are respectively fixed to the first fixed layer 144 and the second fixed layer 145. In some embodiments, the driving teeth 143 are movable or rotatable to reduce friction between the driving teeth 143 and the meshing teeth 133. In some embodiments, a movable or rotatable pin sleeve is sleeved on the driving teeth 143. In some embodiments, when the driving member 142 is observed from above, the outer contours of the plurality of driving teeth 143 are tangent to the circumference of the same circle.

[0040] When the driving member 142 drives the striker 131 to move backward, the circumferential outer contours 135 of the plurality of meshing teeth 133 contact the circumferential outer contours 135 of the plurality of driving teeth 143. In the present embodiment, there are seven driving teeth 143 and seven meshing teeth 133. The seven driving teeth 143 mesh with the seven meshing teeth 133 in sequence in a one-to-one correspondence. In some embodiments, the driving teeth 143 and the meshing teeth 133 may also have other numbers. Since the front and rear positions of the driving member 142 remain unchanged and it only rotates in place around the rotation point C, when the driving member 142 rotates, the striker 131 is driven by the driving member 142 to move backward. The driving member 142 includes a notch 146, which is in an arc shape that is basically concave toward the rotation point C.

[0041] like Figures 9 and 10 As shown, the driving member 142 and the striker 131 are viewed from directly above the fastener driver 100. When the notch 146 rotates to open substantially upward, the first driving tooth 143 on the left side of the notch 146 is named the first driving tooth 147, and the first driving tooth 143 on the right side of the notch 146 is named the seventh driving tooth 148. The plurality of meshing teeth 133 also includes the seventh meshing tooth 136. The first driving tooth 147 meshes with the first meshing tooth 134 during rotation, and the seventh driving tooth 148 meshes with the seventh meshing tooth 136 during rotation. Each driving tooth 143 meshes with its corresponding meshing tooth 133 once for each rotation of the driving member 142.

[0042] The striker 131 can be moved to a plurality of positions. Figure 4 As shown, the fastener driver 100 includes a buffer 123. When the firing pin 131 is at the bottom dead center position, the piston 122 contacts the buffer 123, the striking assembly 130 stops moving forward, and the firing pin 131 moves substantially to the forwardmost position it can move to. The fastener 10 is ejected by the firing pin 131. The seventh driving tooth 148 meshes with the seventh meshing tooth 136, and the motor 160 drives the transmission mechanism 140 to drive the driving member 142 to rotate counterclockwise. Figure 6 As shown, the transmission mechanism 140 includes a clutch assembly 149 that prevents the driving member 142 from rotating clockwise.

[0043] like Figures 8 to 12 As shown, during the counterclockwise rotation of the driving member 142, the plurality of driving teeth 143 mesh with the plurality of meshing teeth 133 in sequence. Driven by the driving member 142, the striking assembly 130 overcomes the atmospheric pressure and moves backward from the bottom dead center position, and the first driving tooth 147 meshes with the first meshing tooth 134. The first meshing tooth 134 contacts the first driving tooth 147 at the contact point B, and generates a force F perpendicular to the tangent of the contact point B. The reference numerals of the contact point B at different positions are respectively indicated by B1, B2, and B3 in the accompanying drawings. The reference numerals of the force F at different positions are respectively indicated by F1, F2, and F3 in the accompanying drawings. After the driving tooth 143 begins to mesh with the first meshing tooth 134, the angle a between the direction of the force F and the direction of the first straight line gradually decreases or remains unchanged. The striker 131 gradually moves to the conversion position. The angle a between the direction of the force F and the direction of the first straight line is substantially zero. When the striker 131 continues to move backward from the conversion position, the angle a between the direction of the force F and the direction of the first straight line gradually increases. The angle a at different positions is indicated by a1 (not shown), a2, and a3 in the drawings.

[0044] The firing pin 131 continues to move backward, the energy storage device 150 continues to store energy, and the firing pin 131 reaches the stop position. At the stop position, the fastener driver 100 stops. When the user presses the trigger 1131, the driving member 142 continues to drive the firing pin 131 to move backward to the top dead center position. The air in the first cylinder 151 is basically compressed to the limit, and the elastic potential energy stored in the energy storage device 150 basically reaches the peak value. The striking assembly 130 stops moving backward, and the firing pin 131 basically moves to the rearmost position it can move to. When the firing pin 131 just passes the top dead center position, the driving tooth 143 is disengaged from the meshing tooth 133. At this time, the driving member 142 rotates to a position where the notch 146 opens upward, the firing pin 131 is not engaged with the driving member 142, and the firing pin 131 can move forward. Driven by the energy storage device 150, the elastic potential energy is converted into dynamic potential energy, and the compressed air causes the striker 131 to move forward, the striker 131 outputs striking force, and the fastener 10 is struck out by the striker 131. The striker 131 moves to the bottom dead center position again.

[0045] From the perspective of distance, the return of the striker 131 from the upper dead center position to the upper dead center position, or from the lower dead center position to the lower dead center position is a striking cycle. From the perspective of user use, each time the striker 131 returns to the parking position is a striking cycle. In this embodiment, each time the striker 131 returns to the parking position is a striking cycle.

[0046] like Fig.12 As shown, the ratio of the stroke distance L1 of the striker 131 from the stop position to the top dead center position to the stroke distance L2 of the striker 131 from the conversion position to the top dead center position is less than or equal to 1. In some embodiments, the ratio of the stroke distance L1 of the striker 131 from the stop position to the top dead center position to the stroke distance L2 of the striker 131 from the conversion position to the top dead center position is greater than or equal to 0.4 and less than or equal to 0.9. In some embodiments, the ratio of the stroke distance L1 of the striker 131 from the stop position to the top dead center position to the stroke distance L2 of the striker 131 from the conversion position to the top dead center position is greater than or equal to 0.5 and less than or equal to 0.9. In some embodiments, the ratio of the stroke distance L1 of the striker 131 from the stop position to the top dead center position to the stroke distance L2 of the striker 131 from the conversion position to the top dead center position is greater than or equal to 0.6 and less than or equal to 0.8. In some embodiments, the ratio of the travel distance L1 of the striker 131 from the parking position to the top dead center position to the travel distance L2 of the striker 131 from the switching position to the top dead center position is equal to 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, or 0.85.

[0047] When the striker 131 is in the parking position, the angle a between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 40 degrees. In some embodiments, the angle a between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 12 degrees. In some embodiments, the angle a between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 2 degrees and less than or equal to 10 degrees. In some embodiments, the angle a between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 3 degrees and less than or equal to 8 degrees. In some embodiments, the angle a between the direction of the force F and the direction of the first straight line 101 is equal to 39 degrees, 38 degrees, 37 degrees, 35 degrees, 30 degrees, 25 degrees, 20 degrees, 15 degrees, 13 degrees, 12.5 degrees, 12.4 degrees, or 12.3 degrees.

[0048] The ratio of the travel distance L1 of the striker 131 from the stop position to the top dead center position to the travel distance L2 of the striker 131 from the conversion position to the top dead center position is greater than or equal to 0.5 and less than or equal to 1. When the striker 131 is in the stop position, the angle a between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 12 degrees. In this way, the stop position is close to the top dead center position, so that when the fastener driver 100 is started, the starting load of the motor 160 is small, energy consumption is saved, the working efficiency is high, and the heating degree of the motor 160 is light. The stop position is not too close to the top dead center position, and the safety is high, which prevents the fastener driver 100 from accidentally ejecting the fastener 10. The stop position is adjusted by the moving distance of the striker 131, and the formulation of a suitable stop position can be quantified, and the stop position has high accuracy.

[0049] The travel distance of the striker 131 from the bottom dead center position to the top dead center position is greater than or equal to 70 mm and less than or equal to 86 mm. In some embodiments, the travel distance of the striker 131 from the bottom dead center position to the top dead center position is greater than or equal to 75 mm and less than or equal to 81 mm. In some embodiments, the travel distance of the striker 131 from the bottom dead center position to the top dead center position is greater than or equal to 77 mm and less than or equal to 79 mm. In some embodiments, the travel distance of the striker 131 from the bottom dead center position to the top dead center position is equal to 78 mm.

[0050] The stroke distance L1 of the striker 131 from the stop position to the top dead center position is greater than or equal to 1.6 mm and less than or equal to 2.6 mm. In some embodiments, the stroke distance L1 of the striker 131 from the stop position to the top dead center position is greater than or equal to 1.8 mm and less than or equal to 2.4 mm. The stroke distance L2 of the striker 131 from the conversion position to the top dead center position is greater than or equal to 3.6 mm and less than or equal to 4.4 mm. In some embodiments, the stroke distance L2 of the striker 131 from the conversion position to the top dead center position is greater than or equal to 3.8 mm and less than or equal to 4.2 mm. In some embodiments, the stroke distance L2 of the striker 131 from the conversion position to the top dead center position is equal to 4 mm. The stroke distance L1 of the striker from the stop position to the top dead center position is less than the stroke distance L2 of the striker 131 from the conversion position to the top dead center position, the stop position is between the conversion position and the top dead center position, and the stop position is close to the top dead center position.

[0051] The outer contour 135 of the first meshing tooth 134 has a straight portion 1351 and an arcuate portion 1352. In the conversion position, the first drive tooth 147 transitions from meshing with the straight portion 1351 to meshing with the arcuate portion 1352. The angle b between the straight portion 1351 and the first straight direction is greater than or equal to 87 degrees and less than or equal to 105 degrees. In some embodiments, the angle b between the straight portion 1351 and the first straight direction is greater than or equal to 89 degrees and less than or equal to 99 degrees. In some embodiments, the angle b between the straight portion 1351 and the first straight direction is greater than or equal to 90 degrees and less than or equal to 97 degrees. In some embodiments, the angle b between the straight portion 1351 and the first straight direction is approximately equal to 90 degrees. The straight portion 1351 is connected to the main body 132 of the striker 131 by a section of an arcuate connecting line that is recessed in the direction of the main body 132. Due to the existence of the arc-shaped connecting line and the straight portion 1351, the first driving tooth 147 first contacts the arc-shaped connecting line and then contacts the straight portion 1351. After the angle a between the direction of the force F and the first straight direction gradually decreases, it remains unchanged in the straight portion 1351. In the straight portion 1351, the angle a between the direction of the force F and the first straight direction is 0 degrees. In some embodiments, the straight portion 1351 is directly connected to the main body 132 of the striker 131, and the first driving tooth 147 directly contacts the straight portion 1351. The angle a between the direction of the force F and the first straight direction remains unchanged at 0 degrees before the striker 131 passes the conversion position. The arc portion 1352 connected to the straight portion 1351 protrudes in the direction away from the main body 132 of the striker 131. When the striker 131 passes the conversion position, the first driving tooth 147 moves along the arc portion 1352, and the angle a between the direction of the force F and the first straight direction gradually increases. The arc portion 1352 has a center A. The numbers of the center A at different positions are represented by A1, A2, and A3 in the accompanying drawings. The first drive tooth has a center point H. At the top dead center position, the center A, the contact point B, the center point H of the first drive tooth, and the rotation point C can be connected to form a straight line. The outer contour 135 of the first meshing tooth 134 has a straight portion 1351 and an arc portion 1352. In this way, the first drive tooth 147 can first apply a force to the first meshing tooth 134 through the straight portion 1351 to drive the striker 131 to move backward, and the force loss is small. The first drive tooth 147 then passes through the arc portion 1352, and uses a gentler arc to accurately stop the striker 131 at a stop position close to the top dead center position, with high control accuracy.

[0052] When the striker 131 moves backward, the pressure of the compressed air in the first cylinder 151 on the striker 131 gradually increases. The pressure acts on the drive tooth 143, which is equivalent to applying a torque to the drive member 142. The torque is the force F generated at the contact point B and perpendicular to the tangent of the contact point B. The distance from the second straight line 102 to the direction of the force F is the force arm FD of the force F. The numbers of the force arm FD at different positions are represented by FD1, FD2, FD3 (not shown), etc. in the accompanying drawings. In other words, when viewed from above, the perpendicular line from the force F to the rotation point C is the force arm FD. When the striker 131 moves from the conversion position to the top dead center position, the distance from the force F to the rotation point C gradually shortens, the force arm FD gradually shortens, and the load of the motor 160 gradually decreases.

[0053] The torque of motor 160 can be regarded as the load of motor 160. When the transmission ratio of gear set 141 is fixed, the torque of driver 142 is positively correlated with the torque of motor 160. From the switching position to the stop position, the torque of driver 142 is greater than or equal to 2.5 N·m and less than or equal to 8.5 N·m. In some embodiments, from the switching position to the stop position, the torque of driver 142 is greater than or equal to 3 N·m and less than or equal to 8 N·m. In some embodiments, from the switching position to the stop position, the torque of driver 142 is greater than or equal to 4 N·m and less than or equal to 7 N·m. In the stop position, the torque of driver 142 is small, and the torque of motor 160 to restart is small, which saves energy. The fastener driver 100 can work for a long time, has high working efficiency, and the temperature rise of motor 160 is low.

[0054] like Fig.13 As shown, in the process of the striker moving from the bottom dead center position to the top dead center position, as the piston 122 moves backward in the first cylinder 151 and compresses the air, the force F gradually increases. In this embodiment, the force F increases linearly. The torque of the driving member 142 is the product of the force F and the lever arm FD. The change trend of the torque of the motor 160 is consistent with the change trend of the torque of the driving member 142. After the striker 131 passes the switching position, although the force F is still increasing, the lever arm FD decreases rapidly. Therefore, the torque of the driving member 142 decreases, and the torque of the motor 160 decreases. The ratio of the stroke distance L1 of the striker 131 from the stop position to the top dead center position to the stroke distance L2 of the striker 131 from the switching position to the top dead center position is less than or equal to 1. The stop position of the striker 131 is close to the top dead center position, and the starting load of the motor 160 is low. When the striker 131 is in the stop position, the angle a between the direction of the force F and the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 40 degrees. The stop position of the striker 131 is close to the top dead center position, and the starting load of the motor is low. It should be noted that Fig.13The stop position marked in is not the only possible stop position. As long as the starting load of the motor 160 is lower at the stop position, the specific stop position is not limited here.

[0055] like Figure 6 , Figures 14 to 17 As shown, the fastener driver 100 includes a control device. The control device includes a controller 172. The controller 172 is configured to be connected to the motor 160 and the detection mechanism 170. The controller 172 is respectively connected to the motor 160 and the detection mechanism 170 so that signals can be sent and received between the controller 172, the motor 160 and the detection mechanism 170. The detection mechanism 170 is configured to detect the position of a moving member 171. After the moving member 171 reaches a first preset position range and is in the first preset position range, the detection mechanism 170 can continuously send a detection signal until the moving member 171 is outside the first preset position range. The detection mechanism 170 sends a detection signal to allow the controller to send a control signal. In this embodiment, the detection mechanism 170 includes a Hall sensor. The moving member 171 is a magnetic element 1711, specifically a cylindrical magnet. In some embodiments, the detection mechanism 170 can also be a potentiometer or other mechanism that can detect the position of the moving member 171, and the moving member 171 can also be other parts that can be detected by the detection mechanism 170.

[0056] like Fig.18As shown, the striker 131 can move to the stop position. When the striker 131 is at the stop position, the moving member 171 also has a corresponding position to which it moves. When the striker 131 is at the stop position, the position to which the moving member 171 moves correspondingly is also collectively referred to as the stop position. Before the moving member 171 reaches the stop position, it will first reach the second preset position. That is to say, the second preset position is between the bottom dead center position and the stop position. When the moving member 171 reaches the second preset position, the controller 172 sends a control signal. Alternatively, the striker 131 moves backward from the bottom dead center. At the first preset time before the moving member 171 reaches the stop position, the controller 172 sends a control signal. After the moving member 171 reaches the first preset position range, the detection mechanism 170 can sense the moving member 171, and the detection mechanism 170 is capable of sending a detection signal to allow the controller 172 to send a control signal. When the moving member 171 reaches the second preset position or the first preset time before reaching the stop position, the controller 172 sends a control signal to control the motor. The first preset position range has a first boundary position and a second boundary position, and the first boundary position is on the side of the second boundary position close to the lower dead center position. The first boundary position and the second boundary position define the first preset position range. The first boundary position can be considered as an extreme detection position of the detection mechanism 170. The second preset position can coincide with the first boundary position of the first preset position, or it can be within the first preset position range. At the first preset time before the moving part 171 reaches the stop position, the controller 172 sends a control signal. The position at which the moving part 171 is located at the first preset time before reaching the stop position can coincide with the first boundary position of the first preset position range, or it can be within the first preset position range.

[0057] When the moving part 171 reaches the first preset position range, the detection mechanism 170 is capable of detecting the moving part 171 and sending a detection signal. When the position of the detection mechanism 170 remains unchanged, the farther the first boundary position is from the detection mechanism 170, the larger the first preset position range is, the stronger the detection capability of the detection mechanism 170 is, or the stronger the ability of the moving part 171 to be detected by the detection mechanism 170 is. When the moving part 171 reaches the second preset position, the controller 172 sends a control signal to control the motor 160 to brake after rotating a preset number of circles, or to control the motor 160 to brake after a second preset time.

[0058] The detection mechanism 170 is capable of detecting the moving member 171 after the moving member 171 reaches the first preset position range. The detection mechanism 170 can continuously detect the moving member 171 within the first preset position range. When the moving member 171 reaches the first preset position range, the detection mechanism 170 begins to be able to detect the moving member 171 and begins to allow the controller 172 to send a control signal. At the second preset position, the controller 172 sends a control signal to control the motor 160. Since the second preset position is before the stop position, when the detection mechanism 170 allows the controller 172 to send a signal, after the controller 172 sends a control signal, it can control the motor 160 to delay braking after certain preset conditions are met, and make the striker 131 finally stop at the stop position. In this way, sufficient time is reserved for the controller 172 to brake the motor 160. The controller 172 can brake the motor 160 within a relatively long position range or time range before stopping. After the preset conditions are met, the controller 172 finally brakes the motor 160 accurately, and the stop position of the motor 160 is accurate and controllable.

[0059] The moving member 171 has a center point E. The angle formed by the center point E of the moving member 171 with the rotation point C of the driving member 142 as the vertex is defined as angle g when the center point E of the moving member 171 is at the parking position and the first boundary position. Fig.18 , E1 and E2 represent the center point E at the first boundary position and the center point E at the stop position, respectively. Angle g is greater than or equal to 10 degrees and less than or equal to 60 degrees. In some embodiments, angle g is greater than or equal to 15 degrees and less than or equal to 50 degrees. In some embodiments, angle g is greater than or equal to 20 degrees and less than or equal to 40 degrees. In some embodiments, angle g is greater than or equal to 30 degrees and less than or equal to 35 degrees.

[0060] When the first preset time before the moving part 171 reaches the stop position, the controller 172 sends a control signal. The first preset time is counted back from the time when the moving part 171 reaches the stop position, and the moving part 171 is within the first preset position range, or has just reached the first boundary position. In some embodiments, the first preset time is greater than or equal to 20ms and less than or equal to 30ms. In some embodiments, the first preset time is greater than or equal to 22ms and less than or equal to 28ms. In some embodiments, the first preset time is greater than or equal to 24ms and less than or equal to 26ms. In some embodiments, the first preset time is greater than or equal to 10ms and less than or equal to 50ms. In some embodiments, the first preset time is greater than or equal to 15ms and less than or equal to 40ms.

[0061] During the use of the fastener driver 100, it will stop frequently. The first drive tooth 147 and the first meshing tooth 134 will wear after multiple stops. When the angle g is greater than or equal to 10 degrees and less than or equal to 60 degrees, or the first preset time is greater than or equal to 20ms and less than or equal to 30ms, the detection mechanism 170 can allow the controller 172 to send a control signal. In this way, the detection range of the detection mechanism 170 is large. When the detection mechanism 170 is capable of detecting the moving part 171 and is capable of sending a detection signal, the striker 131 is far away from the stop position. Before the striker 131 stops at the stop position, in other words, before the motor 160 stops rotating, the detection mechanism 170 has sufficient time to send a detection signal. The controller 172 also has sufficient time to brake the motor 160. The controller 172 can control the motor 160 in advance when the striking assembly 130 is far away from the stop position, and the controller 172 controls the motor 160 for a longer time. In this way, even if the first drive teeth 147 and the first meshing teeth 134 are worn, and the stop position is changed from the initial stop position, the controller 172 can also dynamically adjust the stop position so that the stop position is always in an ideal position. After the first drive teeth 147 and the first meshing teeth 134 are worn, the stop position will be closer to the top dead center position, and the fastener driver 100 is prone to double hitting, causing safety hazards and inconvenience in use. The detection mechanism 170 allows the controller 172 to send a control signal in advance. The controller 172 can dynamically control the motor 160 in advance when the striking assembly 130 is away from the stop position, so that the stop position is always ideal, and the fastener driver 100 is convenient and safe to use.

[0062] The first driving tooth 147 has a center point H. An angle i between the center point E of the moving member 171 and the center point H of the first driving tooth 147 with the rotation center point C of the driving member 142 as the vertex is greater than or equal to 5 degrees and less than or equal to 30 degrees. In some embodiments, the angle i is greater than or equal to 7 degrees and less than or equal to 27 degrees. In some embodiments, the angle i is greater than or equal to 10 degrees and less than or equal to 25 degrees.

[0063] The angle i is greater than or equal to 5 degrees and less than or equal to 30 degrees, and the moving member 171 is far away from the first driving tooth 147, so that there is enough distance between the first preset position and the stop position. The first preset position is far away from the stop position, allowing the controller 172 to perform other controls on the motor 160 before controlling the motor 160 to brake, such as the number of rotations, the rotation time, the deceleration, the soft brake, etc., so that the motor 160 stops at the ideal position.

[0064] In this embodiment, the Hall sensor can detect the magnetic flux lines of the magnetic element 1711 at the first preset position. The surface magnetic field strength of the magnetic element 1711 is greater than or equal to 2800Gs and less than or equal to 3600Gs. In some embodiments, the surface magnetic field strength of the magnetic element 1711 is greater than or equal to 3000Gs and less than or equal to 3400Gs. In some embodiments, the surface magnetic field strength of the magnetic element 1711 is greater than or equal to 3100Gs and less than or equal to 3300Gs. The surface magnetic field strength of the magnetic element 1711 is strong, the magnetic flux lines cover a large range and a long distance, the detection mechanism 170 can detect the moving part 171 earlier, and the controller 172 also has time to dynamically adjust the parking position so that the parking position is always in an ideal position.

[0065] The travel distance of the striker 131 from reaching the first preset position range to the stop position is greater than or equal to 4 mm and less than or equal to 10 mm. In some embodiments, the travel distance of the striker 131 from reaching the first preset position range to the stop position is greater than or equal to 5 mm and less than or equal to 9 mm. In some embodiments, the travel distance of the striker 131 from reaching the first preset position range to the stop position is greater than or equal to 6 mm and less than or equal to 8 mm. The travel distance of the striker 131 from reaching the first preset position range to the stop position is long, and the detection range of the detection mechanism 170 is large.

[0066] After the controller 172 sends a control signal, the motor 160 is controlled to rotate a preset number of turns before braking. In some embodiments, the preset number of turns is greater than or equal to 1 turn and less than or equal to 5 turns. In some embodiments, the preset number of turns is greater than or equal to 2 turns and less than or equal to 4 turns. In some embodiments, the preset number of turns is greater than or equal to 2 turns and less than or equal to 3 turns. The controller 172 can adjust the preset number of turns according to actual conditions, so that after the motor 160 rotates the preset number of turns, the controller 172 brakes the motor 160 again, and the motor 160 continues to rotate a certain number of turns during the braking process before stopping, and the parking position is ideal.

[0067] After the controller 172 sends a control signal, braking is performed after a second preset time. The second preset time is greater than or equal to 4ms and less than or equal to 20ms. In some embodiments, the second preset time is greater than or equal to 6ms and less than or equal to 18ms. In some embodiments, the second preset time is greater than or equal to 8ms and less than or equal to 16ms. In some embodiments, the second preset time is greater than or equal to 10ms and less than or equal to 14ms. The controller 172 can adjust the second preset time according to actual conditions, so that after the motor 160 rotates for the second preset time, the controller 172 brakes the motor 160 again, and the motor 160 stops after continuing to rotate for a certain period of time, and the parking position is ideal.

[0068] like Fig.17 , Figures 19 to 21 As shown, the driving member 142 includes a moving member fixing layer 173, which is fixedly mounted on the first fixing layer 144 and rotates synchronously with the first fixing layer 144 and the second fixing layer 145. The moving member 171 is fixedly mounted on the moving member fixing layer 173 and rotates synchronously with the moving member fixing layer 173. The fastener driver 100 includes a guide assembly for guiding the fastener 10 to move along the first straight line 101. The fastener is connected to at least a portion of the magazine 120 so that the fastener 10 moves from the magazine 120 to the input port.

[0069] The fastener driver 100 includes a support frame 174. The support frame 174 connects the energy storage device 150 and the guide assembly 180. The support frame 174 is fixedly connected to the energy storage device 150, and the guide assembly 180 is fixedly connected to the support frame 174. The support frame 174 is fixedly connected to the energy storage device 150 and the guide assembly 180 at the same time, so that the energy storage device 150 and the guide assembly 180 have a high coaxiality. 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 connected to at least a portion of the magazine 120. The support frame 174 includes a through hole 1741, and the through hole 1741 is used for the firing pin 131 to pass through so as to move from the energy storage device 150 to the guide assembly 180, and the fastener 10 is knocked out by the guidance of the guide assembly 180. The support frame 174 includes a first mounting portion 1742. The guide assembly 180 is mounted on the support frame 174 through the first mounting portion 1742. The first mounting portion 1742 is used to fix the screw. The screw passes through the guide assembly 180 and is fixed to the first mounting portion 1742. There can be multiple first mounting portions 1742. By having a center. At least part of the through hole 1741 and at least one of the multiple first mounting portions 1742 are located on the first straight line 101. In this embodiment, there are three first mounting portions 1742, and the center of the through hole 1741 and the two first mounting portions 1742 are all located on the first straight line 101. In this way, the energy storage device 150, the striker 131 and the guide assembly 180 are simple to assemble, low in cost, and high in process precision. When the striker 131 is on the energy storage device 150 and on the guide assembly 180, it always moves along the first straight line 101, and the guidance is more accurate.

[0070] In this embodiment, the guide assembly 180 includes a second mounting portion 1811, and the second mounting portion 1811 is used to mount the detection mechanism 170. The second mounting portion 1811 includes a protrusion formed on the first guide member 181. The detection mechanism 170 is fixedly mounted on the second mounting portion 1811 by screws. The support frame 174 includes a third mounting portion 1743. The third mounting portion 1743 is used to mount the gear set 141 and the driving member 142. The driving member 142 is rotatably fixed on the third mounting portion 1743 through a bearing. The third mounting portion 1743 includes a toothed protrusion formed on the support frame 174. The detection mechanism 170 is mounted to the guide assembly 180, the guide assembly 180 is fixedly connected to the support frame 174, the driving member 142 is mounted to the support frame 174, and the moving member 171 is fixedly mounted to the driving member 142. In this way, the positional relationship between the rotating shafts of the detection mechanism 170 and the driving member 142 is fixed, which facilitates the detection mechanism 170 to accurately identify the position of the moving member 171 and reduce errors.

[0071] like Figure 22 to Figure 24 As shown, in some embodiments, the detection mechanism 170 is not mounted on the guide assembly 180, but is directly mounted on the support frame 174. The support frame 174 includes a fourth mounting portion 1744, and the fourth mounting portion 1744 is used to mount the detection mechanism 170. The fourth mounting portion 1744 includes a protrusion formed on the support frame 174. The detection mechanism 170 is fixedly mounted to the fourth mounting portion 1744 by screws. The detection mechanism 170 and the driving member 142 are both mounted on the support frame 174, and the positional relationship between the rotation axis of the detection mechanism 170 and the driving member 142 is fixed, which facilitates the detection mechanism 170 to accurately identify the position of the moving member 171 and reduce errors. The energy storage device 150, the guide assembly 180, the detection mechanism 170 and the driving member 142 are all positioned by the support frame 174, which is simple to assemble, compact in structure, accurate in positioning, and the energy storage device 150 and the guide assembly 180 have high coaxiality.

[0072] like Fig.25As shown, the distance between the top dead center position and the bottom dead center position is defined as the stroke L3 of the striking assembly 130. The fastener driver 100 can drive the fastener 10 within the preset length L4 to move. The ratio of the stroke L3 of the striking assembly 130 to the preset length L4 is less than or equal to 1.5. In some embodiments, the ratio of the stroke L3 of the striking assembly 130 to the preset length L4 is less than or equal to 1.49, 1.48, 1.47, 1.46, 1.45, 1.44, 1.43, 1.42, 1.41, or 1.4. In some embodiments, the ratio of the stroke L3 of the striking assembly 130 to the preset length L4 is greater than or equal to 1.4 and less than or equal to 1.49. In some embodiments, the ratio of the stroke L3 of the striking assembly 130 to the preset length L4 is greater than or equal to 1.41 and less than or equal to 1.46. In some embodiments, the ratio of the stroke L3 of the striking assembly 130 to the preset length L4 is greater than or equal to 1.42 and less than or equal to 1.45. The ratio of the preset length L4 of the fastener 10 to the stroke L3 of the striking assembly 130 is small. The stroke L3 of the striking assembly 130 is short, but the fastener driver 100 can drive out a longer fastener 10. The length of the fastener driver 100 is short.

[0073] Stroke L3 is less than or equal to 80 mm. In some embodiments, stroke L3 is less than or equal to 85 mm, 84 mm, 83 mm, 82 mm, 81 mm, 79 mm, 78 mm, 77 mm, 76 mm, 75 mm, 74 mm, 73 mm, or 72 mm. In some embodiments, stroke L3 is greater than or equal to 74 mm and less than or equal to 82 mm. In some embodiments, stroke L3 is greater than or equal to 76 mm and less than or equal to 80 mm. Stroke L3 is shorter, so that the length of fastener driver 100 is shorter.

[0074] The preset length L4 is greater than or equal to 50 mm. In some embodiments, the preset length L4 is greater than or equal to 51 mm, 52 mm, 53 mm, 54 mm, 55 mm, 56 mm, 57 mm, or 58 mm. In some embodiments, the preset length L4 is greater than 50 mm and less than or equal to 58 mm. In some embodiments, the preset length L4 is greater than or equal to 51 mm and less than or equal to 56 mm. The longer the preset length L4 is, the longer the fastener driver 100 can drive out the fastener 10.

[0075] like Fig.26As shown, the length L5 of the firing pin 131 is less than or equal to 165 mm. In some embodiments, the length L5 of the firing pin 131 is less than or equal to 164 mm, 163 mm, 162 mm, 161 mm, 160 mm, 159 mm, 158 mm, 157 mm, 156 mm, or 155 mm. In some embodiments, the length L5 of the firing pin 131 is greater than or equal to 155 mm and less than or equal to 165 mm. In some embodiments, the length L5 of the firing pin 131 is greater than or equal to 156 mm and less than or equal to 162 mm. The short length L5 of the firing pin 131 makes the length of the fastener driver 100 shorter.

[0076] The striker 131 includes a toothed portion 137. The toothed portion of the main body 132 is the toothed portion 137. The portion of the main body 132 that contacts the drive member 142 from the first meshing tooth 134 to the seventh meshing tooth 136 is the toothed portion 137. The ratio of the length L6 of the toothed portion 137 to the preset length L4 is less than or equal to 1.21. In some embodiments, the ratio of the length L6 of the toothed portion 137 to the preset length L4 is less than or equal to 1.23, 1.22, 1.2, or 1.19. In some embodiments, the ratio of the length L6 of the toothed portion 137 to the preset length L4 is greater than or equal to 1.19 and less than or equal to 1.23. In some embodiments, the ratio of the length L6 of the toothed portion 137 to the preset length L4 is greater than or equal to 1.2 and less than or equal to 1.22. The length L6 of the toothed portion 137 is shorter, so that the length L5 of the striker 131 is shorter.

[0077] like Figure 4 10. In some embodiments, the length L7 of guide assembly 180 is less than or equal to 108 mm. In some embodiments, the length L7 of guide assembly 180 is less than or equal to 113 mm, 112 mm, 111 mm, 110 mm, 109 mm, 107 mm, 106 mm, 105 mm, 104 mm, or 103 mm. In some embodiments, the length L7 of guide assembly 180 is greater than or equal to 103 mm and less than or equal to 113 mm. In some embodiments, the length L7 of guide assembly 180 is greater than or equal to 104 mm and less than or equal to 110 mm. The shorter guide assembly 180 allows the length of fastener driver 100 to be shorter.

[0078] like Fig.25 , Fig. 27 and Fig.28As shown, the first cylinder 151 includes a first inner wall 152. When the piston 122 moves in the first cylinder 151, the first inner wall 152 contacts the piston 122. The first inner wall 152 has a circular first cross-section 1521. The ratio of the stroke L3 of the striker 131 to the diameter d1 of the first cross-section 1521 is greater than or equal to 1.7 and less than or equal to 2.8. In some embodiments, the ratio of the stroke L3 of the striker 131 to the diameter d1 of the first cross-section 1521 is greater than or equal to 1.9 and less than or equal to 2.7. In some embodiments, the ratio of the stroke L3 of the striker 131 to the diameter d1 of the first cross-section 1521 is greater than or equal to 2.1 and less than or equal to 2.6. In some embodiments, the ratio of the stroke L3 of the striker 131 to the diameter d1 of the first cross section 1521 is less than or equal to 2.5, 2.45, 2.4, 2.35, 2.3, 2.25, 2.2, 2.1, 2, 1.9 or 1.8. The ratio of the stroke L3 of the striker 131 to the diameter d1 of the first cross section 1521 is small, and the diameter d1 is longer than the stroke L3.

[0079] The diameter of the driving member 142 is defined as the diameter of a circle formed by connecting the centers of the plurality of driving teeth 143. The ratio of the diameter d1 of the first cross section 1521 to the diameter of the driving member 142 is greater than or equal to 0.9 and less than or equal to 1. In some embodiments, the ratio of the diameter d1 of the first cross section 1521 to the diameter of the driving member 142 is greater than or equal to 1 and less than or equal to 1.1. The ratio of the diameter of the driving member 142 to the stroke L3 of the firing pin 131 is greater than or equal to 0.37 and less than or equal to 0.41. In some embodiments, the ratio of the diameter of the driving member 142 to the stroke L3 of the firing pin 131 is greater than or equal to 0.38 and less than or equal to 0.4.

[0080] The energy storage device includes a second cylinder 153. At least a portion of the first cylinder 151 is accommodated in the second cylinder 153. The second cylinder 153 includes a second inner wall 154. The second inner wall 154 has a circular second cross-section 1541. The ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.6 and less than or equal to 0.7. In some embodiments, the ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.6 and less than or equal to 0.65. In some embodiments, the ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.5 and less than or equal to 0.7. In some embodiments, the ratio of the diameter d1 of the first cross-section 1521 to the diameter d2 of the second cross-section 1541 is greater than or equal to 0.53 and less than or equal to 0.63.

[0081] The diameter d1 of the first cross section 1521 is greater than or equal to 28 mm and less than or equal to 36 mm. In some embodiments, the diameter d1 of the first cross section 1521 is greater than or equal to 29 mm and less than or equal to 35 mm. In some embodiments, the diameter d1 of the first cross section 1521 is greater than or equal to 30 mm and less than or equal to 34 mm. The product of the first cross section 1521 of the first cylinder 151 and the stroke L3 is the gas displacement when the piston 122 moves from the bottom dead center position to the top dead center position in the first cylinder 151. The larger the diameter d1 of the first cross section 1521, the larger the gas displacement.

[0082] The ratio of the striking energy output by the fastener driver 100 to the gas displacement is greater than or equal to 0.3 J / cm 3 And less than or equal to 0.7J / cm 3 In some embodiments, the ratio of the striking energy output by the fastener driver 100 to the gas displacement is greater than or equal to 0.35 J / cm 3 And less than or equal to 0.65J / cm 3 In some embodiments, the ratio of the striking energy output by the fastener driver 100 to the gas displacement is greater than or equal to 0.4 J / cm 3 And less than or equal to 0.6J / cm 3 In some embodiments, the ratio of the striking energy output by the fastener driver 100 to the gas displacement is greater than or equal to 0.45 J / cm 3 And less than or equal to 0.55J / cm 3 The striking energy corresponding to each unit of gas displacement is large, and the working efficiency of the fastener driver 100 is high.

[0083] Gas displacement greater than or equal to 54cm 3 and less than or equal to 71cm 3 In some embodiments, the gas displacement is greater than or equal to 58 cm 3 and less than or equal to 68cm 3 In some embodiments, the gas displacement is greater than or equal to 60 cm 3 and less than or equal to 66cm 3 .

[0084] The diameter d2 of the second cross section 1541 is greater than or equal to 47 mm and less than or equal to 57 mm. In some embodiments, the diameter d2 of the second cross section 1541 is greater than or equal to 50 mm and less than or equal to 54 mm. In some embodiments, the diameter d2 of the second cross section 1541 is greater than or equal to 51 mm and less than or equal to 53 mm. In some embodiments, the diameter d2 of the second cross section 1541 is greater than or equal to 45 mm and less than or equal to 60 mm.

[0085] The second cylinder 153 has a volume greater than or equal to 152 cm 3 and less than or equal to 186 cm 3 In some embodiments, the volume is greater than or equal to 157 cm 3 and less than or equal to 181cm 3 In some embodiments, the volume is greater than or equal to 160 cm 3 and less than or equal to 178cm 3 In some embodiments, the volume is greater than or equal to 165 cm 3 and less than or equal to 173cm 3 .

[0086] The ratio of volume to gas displacement is greater than or equal to 1.5 and less than or equal to 1.83. In some embodiments, the ratio of volume to gas displacement is greater than or equal to 1.6 and less than or equal to 1.73. In some embodiments, the ratio of volume to gas displacement is greater than or equal to 1.65 and less than or equal to 1.68.

[0087] like Figure 2 As shown, the length L8 of the fastener driver 100 in the front-to-back direction is less than or equal to 295 mm. In some embodiments, the length L8 of the fastener driver 100 in the front-to-back direction is less than or equal to 294 mm, 293 mm, 292 mm, 291 mm, 290 mm, 289 mm, 288 mm, 287 mm, or 286 mm. The fastener driver 100 is short in length, small in size, light in weight, and easy to use and labor-saving.

[0088] When the battery pack 115 is not installed, the weight of the fastener driver 100 is less than or equal to 2.3 kg. In some embodiments, the weight of the fastener driver 100 is less than or equal to 2.29 kg, 2.28 kg, 2.27 kg, 2.26 kg, 2.25 kg, 2.24 kg, 2.23 kg, or 2.22 kg. When the battery pack 115 is installed, the weight of the fastener driver 100 with the battery pack 115 installed is less than or equal to 2.9 kg. In some embodiments, the weight of the fastener driver 100 with the battery pack 115 installed is less than or equal to 2.91, 2.89 kg, 2.88 kg, 2.87 kg, or 2.86 kg. The fastener driver 100 is light in weight and is convenient and comfortable for the user to use.

[0089] When the battery pack 115 is not installed, the ratio of the weight of the fastener driver 100 to its front-to-back length L8 is less than or equal to 0.078 kg / cm. In some embodiments, the ratio of the weight of the fastener driver 100 to its front-to-back length L8 is less than or equal to 0.077 kg / cm, 0.076 kg / cm, 0.075 kg / cm, or 0.074 kg / cm. The fastener driver 100 has a large output power, a short length, a small size, and is easy to use.

[0090] When the battery pack 115 is not installed, the ratio of the output power of the fastener driver 100 to its length L8 in the front-to-back direction is greater than or equal to 11.3 W / cm. In some embodiments, the ratio of the output power of the fastener driver 100 to its length L8 in the front-to-back direction is greater than or equal to 11.6 W / cm, 11.5 W / cm, 11.4 W / cm, 11.2 W / cm, or 11.1 W / cm. The ratio of the output power of the fastener driver 100 to its weight is greater than or equal to 150 W / kg. In some embodiments, the ratio of the output power of the fastener driver 100 to its weight is greater than or equal to 160 W / kg, 157 W / kg, 155 W / kg, 152 W / kg, 147 W / kg, 145 W / kg, 142 W / kg, or 140 W / kg. The fastener driver 100 has a large output power and a light weight, which is convenient for the user to hold the fastener driver 100 for a long time.

[0091] like Figures 29 to 34 As shown, the fastener driver 100 includes an anti-dry-hit assembly 183. The anti-dry-hit assembly 183 prevents the firing pin 131 from firing empty when the fasteners 10 are exhausted, thereby causing potential danger. The fastener driver 100 includes a lifting member 124. The lifting member 124 tightly arranges a row of fasteners 10 in the magazine 120 in the up and down directions through elastic force. The elastic force is generated by an elastic member, such as a spring, a coil spring, etc. The lifting member 124 is configured to drive the fasteners 10 to move so that the fasteners 10 pass through the input port. After a fastener 10 is fired, the fastener 10 is subjected to the force of the lifting member 124 and is lifted upward by the lifting member 124. The fastener 10 at the top of the row of fasteners 10 passes through the input port to wait for being fired by the firing pin 131. The anti-dry-hit assembly 183 realizes the anti-dry-hit function by changing the position of the lifting member 124.

[0092] The magazine 120 is arranged next to the main housing 111. The anti-air strike assembly 183 is arranged on the upper and outward side of the magazine 120, so the interference of external objects can easily cause the anti-air strike assembly 183 to fail. The anti-air strike assembly 183 includes an anti-air strike assembly housing 1831. At least part of the anti-air strike assembly housing 1831 is arranged on the outside of the anti-air strike assembly 183 to prevent the anti-air strike assembly 183 from being interfered with by external objects. In the present embodiment, the anti-air strike assembly housing 1831 basically seals the anti-air strike assembly 183, effectively preventing the anti-air strike assembly 183 from being interfered with by external objects or dust, thereby extending the service life of the fastener driver 100.

[0093] The fastener driver 100 includes a depth adjustment assembly 184. The depth adjustment assembly 184 includes a stopper 1841, a push rod 1842 and a trigger 1843. The trigger rod 121 is connected to the push rod 1842. The trigger rod 121 can be mounted to the push rod 1842 by means of a retaining spring, a protrusion and a recess, or a magnetic element, so as to facilitate the rapid replacement and installation of the trigger rod 121 when the trigger rod 121 is damaged. When the trigger rod 121 abuts against the workpiece and moves, the push rod 1842 moves with the trigger rod 121. The push rod 1842 is configured to abut against the stopper 1841. The trigger 1843 is operated by a user to adjust the position where the push rod 1842 abuts against the stopper 1841 to adjust the nailing depth. The stopper 1841 includes a step structure for the push rod 1842 to abut against. The push rod 1842 is rotatably connected to the stopper 1841. When the push rod 1842 moves along the front-to-back direction with the trigger rod 121, the push rod 1842 contacts the stopper 1841 and drives the stopper 1841 to move along the front-to-back direction. A magnet is mounted on the stopper 1841. A safety Hall sensor 185 is disposed in the anti-runaway assembly 183. When the safety Hall sensor 185 detects the magnet, the safety switch is turned on, and the user can operate the fastener driver 100 to strike the fastener 10.

[0094] The anti-runaway assembly 183 includes a stopper 1832. The stopper 1832 can rotate around the third straight line 103. The lifting member 124 includes a pushing portion 1241. The pushing portion 1241 is a protrusion formed on the lifting member 124 and protruding toward the stopper 1832. When the fastener 10 is consumed, the pushing portion 1241 moves to the upper side of the magazine 120 with the lifting member 124, and pushes the stopper 1832 to rotate around the third straight line 103. The stopper 1832 includes a first stopper 1833. The stopper 1841 includes a second stopper 1844. When the lifting member 124 pushes the stopper 1832 to rotate, the first stopper 1833 abuts against the second stopper 1844, and the stopper 1832 prevents the stopper 1841 from moving backward. The stopper 1841 cannot move backward, the push rod 1842 and the trigger rod 121 cannot move backward, and the safety switch cannot be opened. The fastener driver 100 cannot work when the fastener 10 is consumed, and the firing pin 131 cannot be ejected when the fastener 10 is consumed.

[0095] like Figure 3 and Fig.33 As shown, the fastener driver 100 includes a light emitting mechanism 190. There may be a plurality of light emitting mechanisms 190. In some embodiments, a runaway prevention Hall sensor 186 is further provided in the runaway prevention assembly 183. When the runaway prevention Hall sensor 186 identifies the magnet on the stopper 1841, and the safety Hall sensor 185 does not detect the magnet, the light emitting mechanism 190 changes the color or frequency of the light to prompt the user, which is convenient and safe to use.

[0096] like Fig.35 As shown, at least one light emitting mechanism 190 is installed directly above the guide assembly 180. At least one light emitting mechanism 190 located directly above the guide assembly 180 is installed on the main housing 111. The main housing 111 includes a protective structure 191. The light emitting mechanism 190 is installed on the protective structure 191. In this embodiment, the protective structure 191 is formed on the main housing 11. The protective structure 191 is formed with a horn-shaped upward protrusion to protect the light emitting mechanism 190 from being damaged by impact when the fastener driver 100 falls. The horn-shaped protrusion of the protective structure 191 is a V-shaped groove when viewed from the front. The light emitted by the light emitting mechanism 190 can project a V-shaped, arrow-shaped or triangular light spot on the workpiece through reflection of the V-shaped groove to indicate the nailing position, which is convenient for users. In some embodiments, the protective structure 191 can also allow the light emitting mechanism 190 to project any projection shape that can indicate the nailing position, such as a line, a circle, etc., on the workpiece.

[0097] In this embodiment, the fastener driver 100 is a pre-filled fastener driver, which needs to be pre-filled in the energy storage device 150 before use. The air pressure in the energy storage device 150 is higher than the atmospheric pressure, so that the striking force of the fastener driver 100 is enhanced. The fastener driver 100 purchased by the user is generally pre-filled by the manufacturer for use by the user. During use, the energy storage device 150 will gradually leak air, so it is necessary to re-fill the energy storage device 150.

[0098] like Figure 36 to Figure 38 As shown, the energy storage device 150 includes a vent 155. The energy storage device 150 is inflated and deflated through the vent 155. The vent 155 is located at the rear of the second cylinder 153. The vent 155 includes a hole connected to the inside of the energy storage device 150. The controller 172 controls the motor 160 to brake, and controls the striker 131 to stop at the stop position. The stop position is between the top dead center position and the bottom dead center position. At the stop position, the striking assembly 130 is still engaged with the driving member 142. When the striking assembly 130 reaches the top dead center position, or when the striking assembly 130 passes the top dead center position backward, the striking assembly 130 is decoupled from the driving member 142. The striking assembly 130 and the driving member 142 do not constitute a force interaction relationship, and the movement of the striking assembly 130 is not affected by the driving member 142.

[0099] The fastener driver 100 has a working state and a maintenance state. In the working state, the vent 155 is not connected to the atmosphere. During the use of the fastener driver 100, due to long-term vibration, inevitable manufacturing tolerances and storage environment factors, a small amount of gas will escape from the energy storage device 150 to the atmosphere through the vent 155, causing the striking force of the fastener driver 100 to decrease. When the fastener driver 100 is not used for nailing, the striking assembly 130 stays in the parking position, and the striking assembly 130 and the driving member 142 are engaged. The transmission mechanism 140 includes a clutch assembly 149. When the striking assembly 130 and the driving member 142 are engaged, the clutch assembly 149 limits the striking assembly 130 from moving forward. The clutch assembly 149 includes a one-way clutch. When the fastener driver 100 is observed from above, the driving member 142 rotates counterclockwise to drive the striking assembly 130 to move backward. The one-way clutch prevents the drive member 142 from rotating clockwise to prevent the striking assembly 130 from moving forward. In the parking position, the force applied by the compressed gas to the striking assembly 130 to make the striking assembly 130 have a tendency to move forward is balanced by the force applied by the clutch assembly 149 to the striking assembly 130 to make the striking assembly 130 have a tendency to move backward.

[0100] In the maintenance state, the vent 155 can be connected to the atmosphere in response to the user's operation to inflate and deflate the energy storage device 150. The user or maintenance personnel can re-inflate the fastener driver 100. Before inflating, the energy storage device 150 is deflated first. Part of the gas in the energy storage device 150 is discharged into the atmosphere through the vent 155. The air pressure in the energy storage device 150 is reduced from higher than the atmospheric pressure to substantially equal to the atmospheric pressure. The force of the compressed gas on the striking assembly 130 is reduced. The compressed gas is gradually converted into atmospheric gas, and the atmospheric gas in the energy storage device 150 no longer applies a force to the striking assembly 130. As the force applied by the gas to the striking assembly 130 to cause the striking assembly 130 to have a tendency to move forward gradually decreases to zero, the position of the striking assembly 130 moves from the parking position to the top dead center. Before the energy storage device 150 is inflated, the striking assembly 130 moves backward to and stays in a ready position that passes the parking position to approach the top dead center position. Or, the striking assembly 130 moves backward to and stays at the inflation position reaching or crossing the top dead center position. Deflation before the energy storage device 150 is inflated reduces the air pressure in the energy storage device 150, providing the possibility for safely inflating the energy storage device 150.

[0101] If the energy storage device 150 is inflated when the striking assembly 130 is engaged with the driving member 142, even if the energy storage device 150 is already full of air, the striking assembly 130 will not move forward due to the stop of the clutch assembly 149. The user can still continue to inflate the energy storage device 150, but the air pressure in the energy storage device 150 is too high, which may easily cause danger when nailing. If the energy storage device 150 is inflated again after being deflated, the striking assembly 130 can directly reach or pass the top dead center position after the energy storage device 150 is deflated, and be unhooked from the driving member 142. In this way, the user or maintenance personnel can inflate the energy storage device 150 without over-inflation or danger when the firing pin 131 is struck out.

[0102] In some embodiments, when the energy storage device 150 is deflated through the vent 155, the striking assembly 130 moves backward to and stays at the inflation position. The striking assembly 130 directly reaches or passes the top dead center position after the energy storage device 150 is deflated, which is convenient to use and saves energy. In some embodiments, after the energy storage device 150 is deflated, the striking assembly 130 moves to the ready position. The transmission mechanism 140 drives the striking assembly 130 to move from the ready position to and stay at the inflation position. After the energy storage device 150 is deflated, the user presses the trigger to make the fastener driver 100 hit in vain. The number of times the user presses the trigger may be one or more times. The motor 160 rotates and drives the driving member 142 to rotate. Since the air pressure in the energy storage device 150 is atmospheric pressure, there is no potential reaction force behind the striking assembly 130, and the driving member 142 can push the striking group from the ready position to the inflation position. The striking assembly 130 is decoupled from the driving member 142, and the energy storage device 150 can be safely inflated.

[0103] When the energy storage device 150 is inflated, when the air pressure in the energy storage device 150 gradually increases to exceed the atmospheric pressure, the striking assembly 130 moves forward toward the bottom dead center position. As the energy storage device 150 continues to be inflated, the striking assembly 130 moves forward to the bottom dead center position. When the energy storage device 150 is fully inflated, the striking assembly 130 stays at the bottom dead center position. The striking assembly 130 moves toward the bottom dead center as the energy storage device 150 is inflated. The striking assembly 130 moves slowly, the moving distance is controllable, and the inflation process is safe and reliable. When the energy storage device 150 is fully inflated, the striking assembly 130 stays at the bottom dead center position. After the user presses the trigger again, the firing pin 131 retracts backwards and does not strike out directly, which is not likely to cause danger and is safe to use.

[0104] The motor 160 brakes to stop the backward movement of the striking assembly 130. When the motor 160 brakes, the motor 160 is configured to rotate a first number of braking turns from the start of braking to the end of braking before the energy storage device 150 is charged, that is, in the maintenance state. After the energy storage device 150 is charged, that is, in the working state, the motor 160 rotates a second number of braking turns from the start of braking to the end of braking. The difference between the first number of braking turns and the second number of braking turns is greater than or equal to 5 turns and less than or equal to 15 turns. In some embodiments, the difference between the first number of braking turns and the second number of braking turns is greater than or equal to 6 turns and less than or equal to 12 turns. In some embodiments, the difference between the first number of braking turns and the second number of braking turns is greater than or equal to 7 turns and less than or equal to 11 turns. In some embodiments, the difference between the first number of braking turns and the second number of braking turns is about 9 turns. In some embodiments, the first number of braking turns is greater than or equal to 11 turns and less than or equal to 13 turns. In some embodiments, the first number of braking turns is about 12 turns. In some embodiments, the second number of braking turns is greater than or equal to 1 turn and less than or equal to 5 turns. In some embodiments, the second braking number of turns is greater than or equal to 2 turns and less than or equal to 4 turns. In some embodiments, the second braking number of turns is about 3 turns.

[0105] The difference between the first braking circle number and the second braking circle number is controlled within a certain range, so that when the motor 160 completes braking, the position of the driving member 142 is appropriate. In the maintenance state, the number of circles driven by the motor 160 to rotate the driving member 142 is such that the driving member 142 will not be engaged with the striking assembly 130 due to too few circles, nor will it be engaged with the striking assembly 130 due to too many circles. The striking assembly 130 can move toward the bottom dead center during the inflation process without being hindered by the driving member 142.

[0106] In some embodiments, the fastener driver 100 includes a detection assembly that detects the position of the striking assembly 130 relative to the inflation position. In this way, the controller 172 can control the inflation level of the energy storage device 150. The fastener driver 100 also includes a display device that displays the position of the striking assembly 130. In this way, the user can accurately know the inflation level of the energy storage device 150.

[0107] like Fig.38 As shown, the process of inflating the fastener driver 100 is as follows: at S1, the energy storage device 150 is deflated. The striking assembly 130 moves backward from the parking position. At S2, if the striking assembly 130 moves to the inflation position, then the process goes to S3, and the energy storage device 150 is inflated. At S4, the striking assembly 130 moves to the bottom dead center, and the inflation of the energy storage device 150 is completed. After the energy storage device 150 is deflated at S1, at S5, if the striking assembly 130 moves to the ready position, then the process goes to S6, the user presses the trigger, and the transmission mechanism 140 drives the striking assembly 130 to move to the inflation position. Then the process goes to S3, and the energy storage device 150 is inflated. Finally, at S4, the striking assembly 130 moves to the bottom dead center, and the inflation of the energy storage device 150 is completed.

[0108] like Fig.25 and Figure 39 to Figure 41 As shown, the fastener driver 100 needs to be inflated with the inflating adapter 200. The inflating adapter 200 is used to inflate the device to be inflated, such as the fastener driver 100. After the energy storage device 150 leaks, the working performance of the fastener driver 100 may be reduced. By using the inflating adapter 200 to inflate the fastener driver 100, the working performance of the fastener driver 100 can be restored. The device to be inflated includes a gas storage space 201. The gas storage space 201 of the fastener driver 100 is a space that can store gas when the first cylinder 151, the second cylinder 153 and the piston 122 are at the bottom dead center position. The inflating adapter 200 includes a first connecting end 210 and a second connecting end 220. The first connecting end 210 is used to connect to a gas source, such as pressurized or unpressurized air, nitrogen, helium, etc. The first connecting end 210 is provided with an air inlet 211. The gas source enters the inflating adapter 200 through the air inlet 211. The second connection end 220 is used to connect with the vent 155. When the second connection end 220 is connected with the vent 155, the inflation adapter 200 is connected with the fastener driver 100.

[0109] The inflation adapter 200 includes an air outlet 221. In the present embodiment, the air outlet 221 is disposed on the second connection end 220. The air outlet 221 is communicated with the vent 155 so that the gas from the gas source flows into the inflation adapter 200 from the air inlet 211, flows through the inflation adapter 200, and then flows out from the air outlet 221 to the vent 155. The vent 155 is communicated with the gas storage space 201, and the gas is finally stored in the gas storage space 201. There is at least one air flow path for gas flow between the air inlet 211 and the gas storage space 201. The air flow path from the air inlet 211 to the gas storage space 201 is defined as the inflation channel 230.

[0110] The second connection end 220 can move toward the vent 155 to the limit position. In the process of the second connection end 220 moving to the limit position, the distance between the second connection end 220 and the vent 155 is gradually shortened. The second connection end 220 includes a meshing portion 222. The meshing portion 222 is meshed with the vent 155 to connect the inflation adapter 200 with the fastener driver 100. When the second connection end 220 just starts to mesh with the vent 155, the second connection end 220 and the vent 155 begin to establish a connection relationship. When the second connection end 220 moves to the limit position, the second connection end 220 and the vent 155 establish a close connection relationship. The meshing portion 222 enables the second connection end 220 to at least stay at the limit position. In this way, when the second connection end 220 moves to the limit position, the meshing portion 222 keeps the second connection end 220 at the limit position, and the second connection end 220 and the vent 155 establish a continuous and close connection relationship.

[0111] The meshing portion 222 is formed with threads. The vent 155 is also formed with threads. The meshing portion 222 is meshed with the vent 155 through threads, and the second connection end 220 is kept at the extreme position relative to the vent 155 through the meshing of threads. The connection between the inflation adapter 200 and the fastener driver 100 is tight and reliable. In some embodiments, the vent 155 and the meshing portion 222 can also be meshed by other means such as grooves and protrusions, magnetic elements, etc. In some embodiments, a knurled structure is provided on the inflation adapter 200, so that the user can easily and comfortably tighten the inflation adapter 200 to the fastener driver 100 by hand.

[0112] like Fig.42 As shown, a valve 156 is provided at the vent 155. When the valve 156 is opened, the vent 155 allows gas to enter the gas storage space 201. When the valve 156 is not opened, the vent 155 does not allow gas to enter the gas storage space 201. Fig.41As shown, the inflation adapter 200 includes a drive assembly 240. The drive assembly 240 is used to open the valve 156 of the vent 155. The drive assembly 240 has at least a first position and a second position. In the first position, the drive assembly 240 opens the valve 156. In the second position, the drive assembly 240 does not open the valve 156. That is, in the first position, the inflation channel 230 is opened to allow airflow. In the second position, the inflation channel 230 is closed to prevent airflow.

[0113] When the second connection end 220 is in the extreme position, the drive assembly 240 can at least be in the second position. When the second connection end 220 is in the extreme position, the drive assembly 240 can at least be in the second position in which the valve 156 is not opened and the inflation channel 230 is closed. When the second connection end 220 moves toward the vent 155, including after the second connection end 220 moves toward the vent 155 to the extreme position, the drive assembly 240 will not immediately open the valve 156 or the inflation channel 230. The drive assembly 240 does not open the valve 156 as the second connection end 220 reaches the extreme position. Before the start of inflation, the gas storage space 201 will not be connected to the atmosphere. The gas in the gas storage space 201 will not escape into the atmosphere, and the air pressure in the energy storage device 150 will not be reduced, thereby reducing the inflation efficiency and quality.

[0114] After the second connection end 220 reaches the limit position, the drive assembly 240 can at least move to the first position. After the second connection end 220 reaches the limit position, the drive assembly 240 can at least move to the first position where the valve 156 is opened and the inflation channel 230 is opened. The drive assembly 240 can move to the first position to open the valve 156 after the second connection end 220 is tightly connected to the vent 155. The inflation adapter 200 and the gas storage space 201 are connected after the second connection end 220 is tightly connected to the vent 155, and the gas in the gas storage space 201 will not leak into the atmosphere, the inflation efficiency and quality are improved, and the use is convenient and reliable.

[0115] like Figures 39 to 44As shown, the inflation adapter 200 includes an operating portion 250. The operating portion 250 is for the user to operate to drive the drive assembly 240 to move. The operating portion 250 is configured to move along the fourth direction 104 under the operation of the user. The drive assembly 240 is configured to be driven by the operating portion 250 to move along the fourth direction 104. The drive assembly 240 has the same moving direction as the operating portion 250. When the user operates the operating portion 250 to move along the fourth direction 104, the operating portion 250 drives the drive assembly 240 to move along the fourth direction 104, which has a simple structure and is convenient and comfortable to use. In some embodiments, the operating portion 250 has a different moving direction from the drive assembly 240, and the operating portion 250 can also rotate to drive the drive assembly 240 to move, and the drive assembly 240 can also be driven by the operating portion 250 to rotate. The operating portion 250 includes a handle 251. The handle 251 includes a nearly spherical portion and a planar portion. The user grasps the nearly spherical part with fingers, places the palm on the flat part, and presses the operating part 250 along the fourth direction 104, which is comfortable to use. In some embodiments, the handle 251 can also be in other shapes, such as plate-shaped, columnar, etc.

[0116] The inflation adapter 200 includes a housing 260 and a limiting portion 270. The limiting portion 270 is disposed on the housing 260. The second connection end 220 is located at one end of the housing 260, and the limiting portion 270 is located at one end of the housing 260 away from the second connection end 220. The operating portion 250 is disposed at one end away from the second connection end 220, and the limiting portion 270 is located between the operating portion 250 and the second connection end 220. The first connection end 210 is disposed on the operating portion 250. The limiting portion 270 is used to limit the movement of the operating portion 250. When the operating portion 250 abuts against the limiting portion 270, the limiting portion 270 prevents the operating portion 250 from continuing to move along the fourth direction 104. In some embodiments, the inflation adapter 200 includes a retaining portion. After the operating portion 250 moves a certain distance, the retaining portion retains the operating portion 250 in one position and prevents the operating portion 250 from continuing to move. The retaining portion may include a thread, a groove and a protrusion, a magnetic element, etc.

[0117] The driving assembly 240 includes a first driving member 241 and a second driving member 242. The operating portion 250 drives the first driving member 241. The first driving member 241 drives the second driving member 242. The first driving member 241 is located between the operating portion 250 and the second driving member 242. One end of the first driving member 241 abuts against the operating portion 250 and has an interference fit with the operating portion 250, and the other end of the first driving member 241 abuts against the second driving member 242. The first driving member 241 extends substantially along the fourth direction 104 and is substantially cylindrical. The first driving member 241 includes a through hole 243 connected to the air inlet 211. The through hole 243 extends along the fourth direction 104 and constitutes a part of the inflation channel 230. A connecting hole 244 is formed at one end of the first driving member 241 close to the second driving member 242, and the connecting hole 244 allows the airflow flowing through the through hole 243 to flow out from the first driving member 241.

[0118] The inflation adapter 200 includes a first inflation chamber 281 and a second inflation chamber 282. The first inflation chamber 281 accommodates part of the first driving member 241 and accommodates the first elastic member 283. The second inflation chamber 282 accommodates part of the second driving member 242 and accommodates the second elastic member 284. The first elastic member 283 is sleeved on the first driving member 241. The second elastic member 284 is sleeved on the second driving member 242. The first driving member 241 includes a first pushing portion 245. The first pushing portion 245 is a circumferential protrusion formed on the first driving member 241. One end of the first pushing portion 245 abuts against the limiting member, and the other end abuts against the first elastic member 283. The second elastic member 284 includes a second pushing portion 246. The second pushing portion 246 is a circumferential protrusion formed on the second driving member 242. One end of the second pushing portion 246 abuts against the first driving member 241, and the other end abuts against the second elastic member 284. When the user presses the operating part 250 to drive the driving assembly 240 to move, the first pushing part 245 and the second pushing part 246 respectively abut against the first elastic member 283 and the second elastic member 284, and bias the first elastic member 283 and the second elastic member 284 toward the pressing direction. The first elastic member 283 and the second elastic member 284 are deformed and accumulate elastic potential energy. When the user releases the operating part 250, the first elastic member 283 and the second elastic member 284 respectively restore their shapes in the opposite direction of the pressing direction, and abut against the first pushing part 245 and the second pushing part 246 respectively, driving the driving assembly 240 to move in the opposite direction of the pressing direction, and the driving assembly 240 is reset. The second driving member 242 and the first driving member 241 are two separate parts, which are convenient for manufacturing and save costs. The second driving member 242 and the first driving member 241 can be driven by the first elastic member 283 and the second elastic member 284 respectively, and the movement of the driving assembly 240 is stable and reliable. The drive assembly 240 can be reset immediately after the inflation is completed, thereby preventing gas leakage when the inflation adapter 200 is disassembled.

[0119] The inflation adapter 200 includes a first sealing member 285. The first sealing member 285 seals the first inflation chamber 281 relative to the second inflation chamber 282. The housing 260 has a first inner wall 261. The first sealing member 285 is sleeved on one end of the first driving member 241 close to the second driving member 242 and is interference fit with the first inner wall 261. In this way, when the airflow flows out of the first driving member 241 from the connecting hole 244 and enters the second inflation chamber 282, it will not return to the first inflation chamber 281, and the inflation efficiency is high. The second inflation chamber 282 constitutes a part of the inflation channel 230.

[0120] The second driving member 242 extends substantially along the fourth direction 104 and is substantially cylindrical. The housing 260 has a second inner wall 262. A portion of the second driving member 242 is accommodated within the second inner wall 262 and is gap-matched with the second inner wall 262. After the airflow flows through the second inflation cavity 282, it flows through the gap 263 between the second driving member 242 and the second inner wall 262, and finally flows into the air storage space 201. The gap 263 between the second driving member 242 and the second inner wall 262 constitutes the last portion of the inflation channel 230.

[0121] The inflatable adapter 200 includes a second sealing member 286. The second sealing member 286 is sleeved on the meshing portion 222. The second sealing member 286 seals the second connecting end 220 relative to the vent 155. When the second connecting end 220 moves to the limit position, the meshing portion 222 keeps the second connecting end 220 at the limit position, and the second sealing member 286 forms a sealed space between the inflatable channel 230 and the gas storage space 201.

[0122] The second driving member 242 includes a triggering portion 247. The triggering portion 247 can open the valve 156 under the operation of the user. The triggering portion 247 protrudes from the air outlet 221 or retracts into the air outlet 221 as the second driving member 242 moves. When the second connecting end 220 moves to the extreme position, the triggering portion 247 protrudes from the air outlet 221 to open the valve 156.

[0123] The thread of the vent 155 is disposed on the valve 156. The valve 156 includes a trigger rod 1561. When the user operates the operating portion 250, the trigger portion 247 of the second driving member 242 abuts against the trigger rod 1561 to drive the trigger rod 1561 to move. The trigger rod 1561 moves to open and close the valve 156.

[0124] The process of the user using the inflatable adapter 200 to inflate is as follows: the user first connects the inflatable adapter 200 to the fastener driver 100 through the meshing portion 222, and the second connecting end 220 moves to the extreme position. At this time, the drive assembly 240 is located in the second position where the valve 156 is not opened. After the inflatable adapter 200 is tightly connected to the fastener driver 100, when the user operates the operating portion 250 for the first time, the drive assembly 240 moves from the second position to the first position to open the valve 156. After the valve 156 is opened, the user can inflate the energy storage device 150. When the user operates the operating portion 250 again, the drive assembly 240 returns from the first position to the second position, the valve 156 is closed, and the inflation ends. At this time, the user disconnects the inflatable adapter 200 from the fastener driver 100 through the meshing portion 222. There will be no leakage during the entire inflation process. Inflation can only start after the user operates the operating portion 250. The user can control the timing of inflation by himself, which is convenient to use.

[0125] The air source is connected to the air inlet 211 through the air inlet pipe 212. In some embodiments, a quick connector is provided between the air inlet pipe 212 and the air inlet 211 to facilitate the connection of the inflation adapter 200 to the air source. The air inlet 211 extends substantially perpendicular to the fourth direction 104. In this way, the longer air inlet pipe 212 is connected to the air inlet 211 substantially perpendicular to the first direction, and the air inlet pipe 212 will not hinder the user from operating the operating part 250 along the fourth direction 104, which is comfortable and convenient to use. In some embodiments, the air inlet 211 may also extend in other directions, for example, parallel to the fourth direction 104. The first connection end 210 is rotatable relative to the second connection end 220, so that the user can stand in different directions to inflate the fastener driver 100. In this embodiment, the operating part 250 and the air inlet 211 are rotatable relative to the housing 260.

[0126] In this embodiment, the inflation adapter 200 further includes a filter 290. The filter 290 can filter air, improve the purity of the gas charged into the energy storage device 150, prevent dust from entering the energy storage device 150, and improve the striking force and service life of the fastener driver 100. The filter 290 is connected to the air inlet 211 so that the filtered air enters the air inlet 211. The air inlet pipe 212 is connected to the filter 290 through a quick connector, and the filter 290 is connected to the air inlet 211 and moves with the movement of the operating part 250. The gas in the air source enters the filter 290 from the air inlet pipe 212, is filtered by the filter 290, and then enters the inflation channel 230 from the air inlet 211, thereby preventing dust from entering the energy storage device 150 and reducing the friction resistance when the piston 122 moves.

[0127] like Fig.45As shown, in some embodiments, the inflatable adapter 200 may also be equipped with a measuring device 291. During inflation, the air pressure of the inflatable channel 230 and the air storage space 201 is the same. The measuring device 291 measures the air pressure of the inflatable channel 230 and the air storage space 201. The measuring device 291 includes a display screen and a button. The display screen displays the value of the measured air pressure, which is convenient for the user to see the value of the measured air pressure. The button is operated by the user to turn on, zero, calibrate, etc. the measuring device 291. The use process of the measuring device 291 is similar to the inflation process. The user first moves the second connecting end 220 to the extreme position to allow the inflatable adapter 200 to establish a seal with the fastener driver 100, and then operates the operating part 250 to open the valve 156 to measure the air pressure. After measuring the air pressure, the user operates the operating part 250 to close the valve 156, and then disconnects the seal between the inflatable adapter 200 and the fastener driver 100. The user does not need to re-inflate the fastener driver 100 to measure the air pressure, which is convenient and quick to use. After the valve 156 is opened, a small portion of the gas in the gas storage space 201 will diffuse into the gas charging adapter 200 and the measuring device 291, and the gas pressure in the energy storage device 150 will be slightly reduced. The space for gas inside the measuring device 291 is less than or equal to 5% of the gas storage space 201. In this way, the space for gas inside the measuring device 291 is extremely small compared to the gas storage space 201, ensuring that the gas pressure in the energy storage device 150 is reduced to a very small extent, and the gas pressure measured by the measuring device 291 is accurate. In some embodiments, the measuring device 291 can compensate for the reduction in gas pressure in the energy storage device 150 through a calibration function to ensure that the measured gas pressure is accurate.

[0128] like Figure 46 to Figure 49 As shown, part of the magazine 120 is wrapped by the shell 110. The magazine 120 is fixed to the main shell 111. The main shell 111 includes a fixing rib 125. The fixing rib 125 defines the installation position of the magazine 120. The fixing rib 125 is formed with a positioning groove 126. The positioning groove 126 fixes the magazine 120 on the main shell 111 along the length of the magazine 120. The magazine 120 includes a magazine shell 127. The magazine shell 127 is defined in the positioning groove 126. The ratio of the length L9 of the fixing rib 125 to the length L10 of the magazine 120 is greater than or equal to 0.3. In some embodiments, the ratio of the length L9 of the fixing rib 125 to the length L10 of the magazine 120 is greater than or equal to 0.4. In some embodiments, the ratio of the length L9 of the fixing rib 125 to the length L10 of the magazine 120 is greater than or equal to 0.5. In this way, most of the length of the magazine 120 can be fixed by the positioning groove 126 and wrapped by the main shell 111, and the magazine 120 is easy to install, stable, and not easy to shake.

[0129] like Figure 50 to Figure 55As shown, the present application also proposes another embodiment of a fastener driver 300, and the structure of the fastener driver 300 is basically the same as that of the fastener driver 100. The fastener driver 300 includes a housing 310. The housing 310 includes a main housing 311, a transmission part 312 and a grip part 313 for a user to hold. The transmission part 312 accommodates a motor 160. The transmission part 312 is arranged in front of the grip part 313. The motor 160 is arranged in front of the grip part 313. When the fastener driver 300 is observed from the front-to-back direction, the grip part 313, the energy storage device 150 and the motor 160 have a center line. The center line of the energy storage device 150 when observed from the front-to-back direction is named Y1, the center line of the grip part 313 when observed from the front-to-back direction is named Y2, and the center line of the motor 160 when observed from the front-to-back direction is named Y3. It should be noted that the center line refers to a characteristic line formed by sequentially connecting the center points of the grip portion 313, the energy storage device 150, and the motor 160 in the width direction when viewed from the front-back direction. When the grip portion 313, the energy storage device 150, or the motor 160 is tilted, the tilt of the center line changes with the tilt of the grip portion 313, the energy storage device 150, or the motor 160, but the center line is still located in the middle position of the grip portion 313, the energy storage device 150, or the motor 160 in the width direction.

[0130] The center line Y2 of the grip 313 is at least partially disposed between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160. Since the driving member 142 drives the striker 131 from the side of the striker 131, when the fastener driver 300 is observed from the front-back direction, the striker 131 and the driving member 142 are at different positions, and the energy storage device 150 that accommodates the striker 131 and the motor 160 that drives the driving member 142 to rotate are at different positions. The motor 160 is located on the right side of the energy storage device 150. The weight of the motor 160 is relatively heavy. The motor 160 is connected to the gear box 1401, and the gear box 1401 contains the gear set 141. The weight of the gear box 1401 and the gear set 141 is also relatively large. Therefore, when the user holds the grip 313 to use the fastener driver 300, the right side of the user's hand will bear more weight. When the user uses the fastener driver 300, the user's hand is prone to flip to the right. The center line Y2 of the gripping portion 313 is at least partially disposed between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160, that is, the center line Y2 of the gripping portion 313 is between the center line Y1 of the main housing 311 and the center line Y3 of the transmission portion 312. The center line Y2 of the gripping portion 313 is on the right side of the center line Y1 of the energy storage device 150 and on the left side of the center line Y3 of the motor 160. In this way, the user's gripping position is staggered with the center line Y1 of the energy storage device 150, and the user's gripping position is close to the center line Y3 of the motor 160. In the left and right directions, the user's hand is close to the heavier motor 160 and the transmission mechanism, the fastener driver 300 is comfortable to use, the user's hand bears the weight evenly, and is not easy to flip. In this embodiment, the center line Y2 of the gripping portion 313 is disposed between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160. The center line Y2 of the gripping portion 313 is substantially parallel to the center line Y1 of the energy storage device 150. The center line Y2 of the grip portion 313 is substantially parallel to the center line Y3 of the motor 160. The center line Y3 of the motor 160 substantially coincides with the rotation axis of the motor 160.

[0131] The fastener driver 300 has a center of gravity G. The center of gravity G of the fastener driver 300 is located on the side of the energy storage device 150 close to the motor 160. The center line Y2 of the gripping portion 313 is at least partially disposed between the center line Y1 of the energy storage device 150 and the center of gravity G. In the left-right direction, the user's gripping position is closer to the center of gravity G of the fastener driver 300, and the downward force applied by the weight of the motor 160 and the gear box 1401 can act more on the user's hand and be supported by the wrist and arm, rather than being concentrated on one side of the user's hand. The user's hand is not easy to flip left and right, and the use is comfortable, safe, and weight-balanced. When the user uses the fastener driver 300 for a long time, it is not easy to feel tired.

[0132] The fastener driver 300 includes a coupling portion 314. The center line of the coupling portion 314 when viewed from the front-back direction is named Y4. The center line Y4 of the coupling portion 314 is at least partially disposed between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160. The center line Y4 of the coupling portion 314 and the center line Y2 of the gripping portion 313 are on the same plane. The center line Y4 of the coupling portion 314 is close to the center of gravity G of the fastener driver 300, and the fastener driver 300 is stable when placed vertically and is not easy to fall. The center line Y4 of the coupling portion 314 and the center line Y2 of the gripping portion 313 are on the same plane, and the manufacturing cost of the fastener driver 300 is low. The main housing 311 includes a first housing 3112 and a second housing 3113. The first housing 3112 and the second housing 3113 are bonded along a bonding surface. The bonding surface of the first housing 3112 and the second housing 3113 passes through the center line Y2 of the gripping portion 313 and the center line Y1 of the energy storage device 150. When manufacturing the fastener driver 300, the first housing 3112 and the second housing 3113 are attached along the attachment surface, and the center line Y2 of the gripping portion 313 and the center line Y1 of the energy storage device 150 are offset relative to the center line Y1 of the energy storage device 150. The manufacturing is simple, accurate and low-cost.

[0133] In some embodiments, the center line Y4 of the joint 314 is at least partially disposed on the side of the center line Y1 of the energy storage device 150 away from the center line Y3 of the motor 160. In this way, when the battery pack 115 is installed on the joint 314, the center of gravity G of the fastener driver 300 moves to the left due to the heavy weight of the battery pack 115. The center line Y2 of the grip 313, that is, the user's gripping position, is closer to the center of gravity G, and the fastener driver 300 is more comfortable to use.

[0134] Since the direction of the first straight line 101 of the fastener 10 is substantially coincident with the center line Y1 of the energy storage device 150, the grip portion 313 is generally at least partially disposed below the energy storage device 150 so that the user's gripping position is close to the position where the fastener 10 is ejected in the left-right direction. The energy storage device 150 includes a first cylinder 151. The center line Y2 of the grip portion 313 is at least partially disposed between the center line of the first cylinder 151 and the center line Y3 of the motor 160. The first cylinder 151 accommodates at least a portion of the firing pin 131. The center line Y2 of the grip portion 313 is at least partially disposed between the center line Y1 of the firing pin 131 and the center line Y3 of the motor 160. The center line Y1 of the energy storage device 150, the center line of the first cylinder 151, and the center line of the firing pin 131 substantially coincide. The center line of the trigger 3131 is at least partially disposed between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160. The center line of the trigger 3131 and the center line Y2 of the grip portion 313 are substantially coincident.

[0135] The center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 are substantially parallel. The distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 is greater than or equal to 0.5 mm and less than or equal to 10 mm. In some embodiments, the distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 is greater than or equal to 2 mm and less than or equal to 8 mm. In some embodiments, the distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 is greater than or equal to 4 mm and less than or equal to 6 mm. The distance L11a between the center line Y2 of the grip 313 and the center line Y1 of the energy storage device 150 is small, and the user's gripping position and the position where the fastener 10 is ejected are relatively close in the left-right direction, which is convenient for the user to align the ejection position of the fastener 10, and is easy to use. The center line Y2 of the grip portion 313 is within 0.5 to 10 mm to the right of the center line Y1 of the energy storage device 150, balancing the user's requirements for weight balance and shooting position alignment, so that the user feels that the fastener driver 300 is weight balanced and the fastener driver 300 is not easy to flip over, while the shooting position is easy to align, making it comfortable and convenient to use, and the fastener driver 300 has a beautiful appearance.

[0136] The ratio of the distance L11a between the center line Y1 of the energy storage device 150 and the center line Y2 of the grip portion 313 to the distance L11b between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160 is less than or equal to 0.5. In some embodiments, the ratio of the distance L11a between the center line Y1 of the energy storage device 150 and the center line Y2 of the grip portion 313 to the distance L11b between the center line Y1 of the energy storage device 150 and the center line Y3 of the motor 160 is less than or equal to 0.4, 0.3, 0.2, or 0.1.

[0137] like Figure 56 to Figure 58As shown, the present application also proposes another embodiment of a fastener driver 400, and the structure of the fastener driver 400 is basically the same as that of the fastener driver 100. The fastener driver 400 includes a magazine 420 and a guide assembly 480. The magazine 420 includes an upper magazine 421, a lower magazine 422 and a guide rail 423. The guide rail 423 is used to guide the fastener 10 to move in the magazine. The guide rail 423 is fixed to the upper magazine 421. The upper magazine 421 is arranged on the front side of the lower magazine 422. The upper magazine 421 includes a guide assembly fixing portion 424 and a guide rail fixing portion 425. The length of the upper magazine 421 is defined by the top and bottom of the upper magazine 421. The guide assembly fixing portion 424 is located at the top of the upper magazine 421, and the guide rail fixing portion 425 is located at the bottom of the upper magazine 421. The upper magazine 421 is fixed to the guide assembly 480 through the guide assembly fixing portion 424. The guide assembly fixing portion 424 includes a hole. The screws pass through the holes to secure the magazine to the guide assembly 480 .

[0138] The guide rail 423 is fixed to the upper magazine 421 through the guide rail fixing portion 425. In this way, because the upper magazine 421 is fixed to the guide assembly 480, the guide rail 423 is fixed to the upper magazine 421, and the guide rail 423 is fixed relative to the guide assembly 480. When the guide rail 423 guides the fastener 10 to move, the position of the fastener 10 relative to the guide assembly 480 is stable and not easy to shake, thereby improving the nailing quality.

[0139] The guide rail fixing portion 425 includes a first strip hole 426. The shape of the first strip hole 426 matches the shape of the fastener 10 so that the fastener 10 can pass through. The first strip hole 426 has a guide rail fixing end 4261. The guide rail fixing end 4261 matches the shape of the guide rail 423 so that one end of the guide rail 423 can be inserted into the guide rail fixing end 4261. The upper magazine 421 includes a guide rail abutment portion 427. The other end of the guide rail 423 abuts against the guide rail abutment portion 427 and the guide assembly 480. In this way, the guide rail 423 can be stably fixed on the upper magazine 421, and the installation is simple.

[0140] The lower magazine 422 is fixed to the upper magazine 421. The lower magazine 422 includes a second strip hole 428. The shape of the second strip hole 428 matches the shape of the fastener 10 so that the fastener 10 can pass through. The guide rail 423 includes a mounting groove 429. The shape of the mounting groove 429 matches the shape of the tail end of the fastener 10 to guide the movement of the fastener 10. When loading the fastener 10 into the magazine 420, the fastener 10 first passes through the second strip hole 428, then passes through the first strip hole 426, and then passes through the mounting groove 429. After the fastener 10 is loaded into the magazine 420, it will not be affected by the lower magazine 422. In this way, the installation accuracy requirement for the lower magazine 422 during manufacturing is relatively low, and even if the lower magazine 422 is loose or not aligned with the upper magazine 421, it will not affect the movement of the fastener 10.

[0141] like Figure 59 to Figure 66 As shown, the present application also proposes another embodiment of a fastener driver 500, and the structure of the fastener driver 500 is basically the same as that of the fastener driver 100. The fastener driver 500 includes a magazine 520, a firing pin 531, a fastener 50 and a guide assembly 580. The shape of the fastener 50 is U-shaped. The fastener 50 includes at least two legs 51 and a connecting portion 52 connecting the at least two legs 51. In this embodiment, the fastener 50 has two legs 51 and a connecting portion 52. The two legs 51 are respectively two straight parts of the U shape, and the connecting portion 52 is a bent part of the U shape. The guide assembly 580 guides the fastener 50 to be driven into the workpiece. Since the fastener 50 is U-shaped, there is a gap between at least two legs 51, and the fastener 50 is easily deformed from at least two legs 51 after contacting the workpiece.

[0142] like Figure 60 to Figure 63 As shown, the guide assembly 580 extends substantially along the first straight line 101. The guide assembly 580 includes a first guide structure 581. The first guide structure 581 prevents at least two legs 51 of the fastener 50 from approaching each other. When the fastener 50 contacts some workpieces, the two legs 51 of the fastener 50 are subjected to the force of the workpiece and approach each other under the action of the force. The shape of the fastener 50 changes, resulting in problems such as the fastener 50 not being able to be driven into the workpiece, the fastener 50 being skewed, and poor work quality. The first guide structure 581 prevents at least two legs 51 of the fastener 50 from approaching each other, so that the at least two legs 51 of the fastener 50 will not shrink inward after contacting the workpiece, and the work quality and work efficiency are high.

[0143] The guide assembly 580 includes a second guide structure 582. The second guide structure 582 prevents at least two legs 51 of the fastener 50 from moving away from each other. Depending on the material of the workpiece, when the fastener 50 contacts some workpieces, the two legs 51 of the fastener 50 will be subjected to the force of the workpiece and move away from each other under the action of the force. The shape of the fastener 50 changes, resulting in problems such as the fastener 50 not being able to be driven into the workpiece, the fastener 50 being skewed, and poor work quality. The second guide structure 582 prevents at least two legs 51 of the fastener 50 from moving away from each other, so that at least two legs 51 of the fastener 50 will not expand outward after contacting the workpiece, and the work quality and work efficiency are high.

[0144] The guide assembly 580 includes a first guide structure 581 and a second guide structure 582 that prevent the shape of the fastener 50 from changing, thereby preventing at least two legs 51 from shrinking inward or expanding outward when contacting a workpiece. When encountering different workpieces or different working conditions, the shape of the fastener 50 can remain unchanged, and the work quality and efficiency are high.

[0145] The guide assembly 580 includes a guide surface 583. After the fastener 50 moves to the uppermost position relative to the guide assembly 580, the guide surface 583 contacts at least two legs 51. The guide surface 583 extends substantially along the direction of the first straight line 101. When the striker 531 drives the fastener 50 to move, the upper sides of at least two legs 51 abut against the guide surface 583 and move along the guide surface 583. The first guide structure 581 protrudes relative to the guide surface 583. When the fastener driver 500 is placed vertically, the first guide structure 581 protrudes downward relative to the guide surface 583. The first guide structure 581 is a strip-shaped rib protruding relative to the guide surface 583. The first guide structure 581 is located in the middle of the guide surface 583, and the extension direction of the first guide structure 581 is consistent with the direction of the first straight line 101. At least two legs 51 abut against the guide surface 583, and the first guide structure 581 is clamped between the at least two legs 51. The first guide structure 581 includes at least two first abutting surfaces 588. The at least two first abutting surfaces 588 are located on both sides of the first guide structure 581 facing outward along the length direction. When the fastener 50 is subjected to an external force and the at least two legs 51 tend to shrink inward, the at least two first abutting surfaces 588 abut against the at least two legs 51 respectively and prevent the at least two legs 51 from moving toward each other.

[0146] The first guide structure 581 includes a slideway 586 located between at least two first abutting surfaces 588. Since there is a gap between at least two legs 51, at least two legs 51 can abut against the guide surface 583 when they move to the uppermost position. The shape of the connecting portion 52 is continuous, so when the connecting portion 52 moves to the uppermost position, the connecting portion 52 abuts against the slideway 586 of the first guide structure 581. The slideway 586 extends in the direction of the first straight line 101. When the striker 531 drives the fastener 50 to move, the upper side of the connecting portion 52 abuts against the slideway 586 and moves along the slideway 586.

[0147] The second guide structure 582 protrudes relative to the guide surface 583. When the fastener driver 500 is placed vertically, the second guide structure 582 protrudes downward relative to the guide surface 583. The second guide structure 582 is two strip-shaped ribs protruding relative to the guide surface 583. The second guide structure 582 is located on both sides of the guide surface 583, and the extension direction of the second guide structure 582 is consistent with the direction of the first straight line 101. The second guide structure 582 includes at least two second abutment surfaces 589. At least two second abutment surfaces 589 are located on both sides of the second guide structure 582 facing inward in the length direction. When the fastener 50 is subjected to external force and the at least two legs 51 have a tendency to expand outward, the at least two second abutment surfaces 589 respectively abut against the at least two legs 51 and prevent the at least two legs 51 from moving away from each other.

[0148] The guide assembly 580 includes a first guide member 584 and a second guide member 585. The first guide member 584 and the second guide member 585 are arranged facing each other. At least part of the first guide member 584 is located above the second guide member 585. The first guide structure 581 and the second guide structure 582 are both arranged on the first guide member 584, which has a simple structure and is convenient for processing. The first guide structure 581 and the second guide structure 582 are both protruding downward, which is convenient for manufacturing and low in cost. At least part of the second guide member 585 supports the movement of the fastener 50. The first guide member 584 and the second guide member 585 are fixed together by screws or other fixing methods. A movable channel 587 is formed between the first guide member 584 and the second guide member 585. The movable channel 587 accommodates part of the striker 531 and the fastener 50. When the striker 531 pushes the fastener 50 to move, at least part of the fastener 50 moves in the movable channel 587. When the fastener 50 moves, at least two legs 51 abut against the first guide structure 581. The upper side of the connecting portion 52 abuts against the first guide member 584, and the lower side of the connecting portion 52 abuts against the second guide member 585. The first guide member 584 mainly guides the fastener 50, and the second guide member 585 mainly supports the movement of the fastener 50, and the structure is effective and simple.

[0149] like Fig.64 As shown, the first guide structure 581 also guides the movement of the striker 531. The striker 531 includes a guide slot 532. The guide slot 532 extends in the direction of the first straight line 101. When the striker 531 moves, the guide slot 532 engages with at least a portion of the first guide structure 581. The first guide structure 581 cooperates with the guide slot 532 to guide the movement of the striker 531. In this way, the striker 531 with a longer length is not prone to shaking, and the working quality of the fastener driver 500 is high. In the front-to-back direction, the ratio of the length L12 of the guide slot 532 to the length L5 of the striker 531 is greater than or equal to 0.4 and less than or equal to 0.8. In some embodiments, the ratio of the length L12 of the guide slot 532 to the length L5 of the striker 531 is greater than or equal to 0.5 and less than or equal to 0.7. In some embodiments, the ratio of the length L12 of the guide slot 532 to the length L5 of the striker 531 is approximately 0.6. The length L12 of the guide groove 532 is longer than the length L5 of the striker 531, so that even if the striker 531 moves to the top dead center position far from the guide assembly 580, part of the guide groove 532 is engaged with the first guide structure 581. During the entire movement of the striker 531, the striker 531 can be guided by the guide assembly 580 in the movement direction, the striker 531 is not prone to shaking, and the working quality of the fastener driver 500 is high.

[0150] After contacting the guide assembly 580, since at least two legs 51 are in contact with the guide surface 583 and the connecting portion 52 is in contact with the slide 586, there is a difference in height between the at least two legs 51 and the connecting portion 52. The extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101. The angle c at which the extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 8 degrees. In some embodiments, the angle c at which the extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101 is greater than or equal to 1 degree and less than or equal to 7 degrees. In some embodiments, the angle c at which the extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101 is greater than or equal to 2 degrees and less than or equal to 6 degrees. The angle c at which the extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101 is small, and the work quality will not be affected when the fastener 50 is shot into the workpiece.

[0151] like Figure 65 to Figure 66 As shown, the fastener driver 500 includes a lifting member 524. The second guide member 585 includes an input port 5851. The input port 5851 is connected to at least a portion of the magazine 520. The lifting member 524 tightly arranges a row of fasteners 50 in the magazine 520 in the up and down direction by elastic force. The elastic force is generated by an elastic member, such as a spring, a coil spring, etc. The lifting member 524 is configured to drive the fastener 50 to move so that the fastener 50 passes through the input port 5851. After a fastener 50 is ejected, the fastener 50 is acted upon by the force of the lifting member 524 and is lifted upward by the lifting member 524. The topmost fastener 50 in the row of fasteners 50 passes through the input port 5851 to wait for being ejected by the firing pin 531. In this embodiment, the elastic member is a lifting spring 525. The upper end of the lifting spring 525 is fixedly connected to the guide assembly 580. The lower end of the lifting spring 525 is fixedly connected to the left side of the lifting member 524. When the user installs the fastener 50, he first overcomes the elastic force of the lifting spring 525 and moves the lifting member 524 downward. The lifting spring 525 is deformed and becomes longer. After reserving enough space for a row of fasteners 50, the user lets go, and the lifting spring 525 drives the lifting member 524 to clamp the fastener 50 in the magazine 520. The lower end of the lifting spring 525 is fixedly connected to the left side of the lifting member 524. In this way, the force on the left side of the lifting member 524 is greater than the force on the right side of the lifting member 524. The left side of the lifting member 524 is higher than the right side of the lifting member 524. The lifting member 524 is inclined relative to the direction of the first straight line 101, so that the extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101. The angle at which the lifting member 524 is inclined relative to the direction of the first straight line 101 is consistent with the angle c at which the extension direction of the fastener 50 is inclined relative to the direction of the first straight line 101.

[0152] The above implementation modes are only to illustrate the basic principles and characteristics of the present application. The present application is not limited by the above implementation modes. Without departing from the spirit and scope of the present application, the present application may be subject to various changes and modifications, which are within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A fastener driver comprising: a striker, configured to output a striking force to drive the fastener into the workpiece; a transmission mechanism, configured to drive the striker to move backward at least to a parking position; a motor, configured to drive at least the transmission mechanism; A controller connected to the motor; a detection mechanism connected to the controller, the detection mechanism being configured to detect the position of a moving part and to send a detection signal when the moving part is in a first preset position range to allow the controller to send a control signal; Wherein, when the moving part reaches the second preset position before the stop position, or at the first preset time before the moving part reaches the stop position, the controller sends a control signal to control the motor to rotate a preset number of circles or brake after the second preset time.

2. The fastener driver according to claim 1, characterized in that The transmission mechanism includes a driving member including a plurality of driving teeth arranged to engage with the striker to drive the striker.

3. The fastener driver according to claim 2, characterized in that The first preset position range has a first boundary position, which defines that when the center point of the moving part is at the stop position and at the first boundary position, the angle formed by the rotation point of the driving part as the vertex is greater than or equal to 10 degrees and less than or equal to 60 degrees.

4. The fastener driver according to claim 2, characterized in that The striker includes a main body extending along a first straight line direction and a plurality of meshing teeth arranged on the main body, the plurality of meshing teeth including a first meshing tooth for stopping the striker at a stop position, the plurality of driving teeth including a first driving tooth arranged to mesh with at least the first meshing tooth, and an angle between a center point of the moving part and a center point of the first driving tooth with the rotation center of the driving part as the vertex is greater than or equal to 5 degrees and less than or equal to 30 degrees.

5. The fastener driver of claim 1, wherein: The moving part is a magnetic element.

6. The fastener driver of claim 5, wherein: The surface magnetic field strength of the magnetic element is greater than or equal to 2800 Gs and less than or equal to 3600 Gs.

7. The fastener driver of claim 1, wherein: The first preset time is greater than or equal to 20 ms and less than or equal to 30 ms.

8. The fastener driver of claim 1, wherein: The preset number of turns is greater than or equal to 1 turn and less than or equal to 5 turns.

9. The fastener driver of claim 1, wherein: The second preset time is greater than or equal to 4 ms and less than or equal to 20 ms.

10. The fastener driver of claim 1, wherein: The travel distance of the striker from reaching the first preset position range to moving to the stop position is greater than or equal to 4 mm and less than or equal to 10 mm.

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