Pneumatic nail gun

Abstract

The present invention belongs to the technical field of nail guns. Provided is a pneumatic nail gun. The present invention solves the problem of how to remove jammed and deformed nails when nail jamming occurs, so that normal operation can be resumed. Engagement pins of the nail gun are annular and are consecutively arranged on a rotating disc at intervals; the engagement pins engage with corresponding protrusions; the rotating disc is arranged on a rotating shaft; when a firing pin moves in a second direction, the rotating shaft drives the rotating disc to rotate; and when the firing pin moves in a first direction, the rotating disc is separated from the rotating shaft. When a nail is jammed in the nail gun, the engagement pins engage with the corresponding protrusions without misalignment, the firing pin moves normally to a ready position, and the jammed nail is removed from the nail gun, so that normal operation can be resumed. When the engagement pins and the protrusions are misaligned, an engagement relationship between the engagement pins and the misaligned protrusions is re-determined, and normal operation can be resumed after the jammed nail is removed. In the solution, after the nail gun is used, a pressure relief rod is pressed to separate a locking plate from the firing pin, and the firing pin moves under the action of a high-pressure gas, so that the high-pressure gas inside the nail gun does not leak after the nail gun is used. In the present invention, the rotating disc, which drives the rotating shaft to rotate, is provided on the rotating shaft, when the firing pin moves in the second direction, the rotating shaft drives the rotating disc to rotate, and when the firing pin moves in the first direction, the rotating shaft and the rotating disc move relative to each other, and the rotating shaft is separated from the rotating disc, thereby solving the problem of how to remove jammed and deformed nails when nail jamming occurs, so that normal operation can be resumed.

Description

A pneumatic nail gun Technical Field

[0001] This invention relates to the field of nail gun technology, and more particularly to a nail gun, especially a pneumatic nail gun. Background Technology

[0002] A nail gun is a tool that drives fasteners into an object. A nail gun includes a housing, impact section, lifting section, locking section, nail magazine, nail ejection section, power supply section, control system, motor, and reduction mechanism.

[0003] An existing technology provides a fastener comprising an injection section for supplying fasteners to the injection section; an impact section that impacts the fasteners supplied to the injection section in a first direction and a second direction opposite to the first direction; a rack disposed on the impact section; a rotating member rotatably disposed thereon; and a plurality of engaging members disposed at intervals on the rotating member in the rotation direction of the rotating member, and engaging and disengaging with respect to the rack by rotation of the rotating member. The plurality of engaging members includes: a first engaging member located in a first position, whereby the first engaging member engages with the rack to transmit the rotational force of the rotating member to the impact section, thereby enabling the impact section to move in the second direction; and a second engaging member located behind the first engaging member in the rotation direction of the rotating member and in a second position where it cannot engage with the rack when the first engaging member is released from the rack and the impact section moves in the first direction.

[0004] The position of the locking component is changed primarily through an adjustment mechanism consisting of a transmission plate latch and a wheel latch. In this design, a separate adjustment mechanism and control method are used to move the locking component from a first position to a second position. When a nail deforms and gets stuck in the nail gun during the nailing process, it can easily cause misalignment between the locking component and the rack on the firing pin. This prevents the impact unit from reaching the designated position, and even after removing the deformed nail, the nail gun cannot continue to function normally. Therefore, a new firing pin lifting component is needed to allow the nail gun to remove the deformed nail when it gets stuck, restoring normal operation.

[0005] In the field of nail guns, the impact unit includes a sealed cylinder for storing gas. A complete nailing process generally goes like this: initially, the firing pin in the impact unit is moved towards the fastener by the high-pressure gas in the cylinder and impacts the fastener. After the fastener is ejected from the nail gun, the firing pin returns to the position under the action of high-pressure gas to facilitate the next nailing. When the nail gun is not in use, the high-pressure gas in the cylinder may leak due to the piston being subjected to high-pressure gas, resulting in insufficient subsequent nailing force. Technical issues

[0006] How to ensure that a nail gun can return to normal operation after removing a deformed nail that gets stuck, and how to prevent the high-pressure gas inside the nail gun from leaking out after nailing. Technical solutions

[0007] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a pneumatic nail gun. The technical problem to be solved by this invention is: how to enable the nail gun to return to normal operation after removing the deformed nail when it gets stuck.

[0008] The objective of this invention can be achieved through the following technical solution: A pneumatic nail gun, comprising an impact part for driving fasteners inside the nail gun out of the nail gun along a first direction, the impact part comprising a firing pin, the firing pin having a plurality of protrusions continuously arranged thereon, the firing pin reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a lifting part and a locking part for keeping the firing pin locked and preventing it from moving in the first direction, the lifting part comprising a rotating disk and a plurality of locking pins or teeth disposed on the rotating disk, characterized in that the locking pins or teeth are arranged in a ring and continuously spaced on the rotating disk, the locking pins corresponding to the protrusions and engaging with the corresponding protrusions when the firing pin moves, the rotating disk is also connected to a rotating mechanism, the rotating mechanism comprising a rotating shaft, the rotating disk being disposed on the rotating shaft, when the firing pin moves in the second direction, the rotating shaft driving the rotating disk to rotate, when the firing pin moves in the first direction, the rotating disk and the rotating shaft disengaging.

[0009] In this pneumatic nail gun, locking pins are continuously spaced on the rotating disc. During nailing and resetting, the locking pins remain engaged with the firing pin. The disengagement of the rotating disc from the rotating shaft reduces the resistance experienced by the firing pin during fastening, ensuring effective nailing. Here, disengagement of the rotating disc from the rotating shaft means that the rotation of the rotating disc does not drive the rotation of the rotating shaft. The engagement of the rotating disc and the rotating shaft causes the rotating shaft to rotate, which in turn lifts the firing pin. Nail driving is achieved by the disengagement of the rotating disc from the rotating shaft. The locking pins do not need to move radially within the rotating disc. They remain engaged with the protrusions on the firing pin. When a nail deforms and becomes stuck in the nail gun, the locking pins will not misalign with the protrusions on the firing pin. The rotating disc continues to rotate, and the firing pin can still move normally to the ready position. The deformed nail can then be removed, and the nail gun can resume normal operation. Even if the locking pins and protrusions misalign during nailing, the continuously spaced locking pins on the rotating disc allow the locking pins and misaligned protrusions to re-establish their engagement relationship. After removing the stuck nail, normal operation can resume. In this design, the locking pin can be replaced with a toothed structure.

[0010] In the aforementioned pneumatic nail gun, the rotating disk is circumferentially mounted on a rotating shaft and remains fixed axially on the shaft. Mounting the rotating disk on the rotating shaft facilitates its installation.

[0011] In the aforementioned pneumatic nail gun, the rotating disc is equipped with a third ratchet, and the rotating shaft is connected to a pawl. When the firing pin moves in the second direction, the pawl engages with the third ratchet, and when the firing pin moves in the first direction, the pawl disengages from the third ratchet.

[0012] In the pneumatic nail gun described above, a connecting seat is provided on the rotating shaft, and the pawl is rotatably mounted on the connecting seat.

[0013] In the aforementioned pneumatic nail gun, the connecting seat includes a connecting plate and a connecting shaft. The pawl is sleeved on the connecting shaft, and the connecting shaft is also provided with an elastic element four. One end of the elastic element four is disposed on the connecting plate, and the other end of the elastic element four is disposed on the pawl.

[0014] In the pneumatic nail gun described above, the lifting part is connected to the mounting base, the mounting base is provided with a separation column, and the pawl is provided with a separation plate. When the firing pin moves in the first direction, the separation plate abuts against the separation column, the separation plate rotates toward the center of the rotating disk, and the pawl rotates away from the center of the rotating disk and disengages from the third ratchet. When the firing pin moves in the second direction, the separation plate separates from the separation column, and the pawl engages with the third ratchet.

[0015] In the pneumatic nail gun described above, a first bearing is provided between the rotating disk and the rotating shaft, and the first bearing is located on the inner side of the rotating disk.

[0016] In the aforementioned pneumatic nail gun, the upper end of the first bearing abuts against the inner end face of the rotating disk, and the rotating disk is also provided with a limiting member for limiting the first bearing within the rotating disk.

[0017] In the aforementioned pneumatic nail gun, the connecting seat is fixed to the rotating shaft by threads. This structure ensures that the connecting seat is more securely fixed to the rotating shaft and is less prone to loosening.

[0018] In the pneumatic nail gun described above, the upper end face of the third ratchet abuts against the plate of the rotating shaft. This structure prevents relative axial movement between the rotating disk and the rotating shaft.

[0019] In the pneumatic nail gun described above, the projection of the outer end face of the separating plate that contacts the separating column onto the horizontal plane is a straight line and an arc.

[0020] In the pneumatic nail gun described above, a retaining ring is provided below the first bearing. The retaining ring is located between the first bearing and the second bearing and abuts against the first bearing and the second bearing.

[0021] In the aforementioned pneumatic nail gun, a limiting plate is provided on the rotating disk, and the limiting plate is located below the locking pin. The limiting plate prevents the locking pin from easily dislodging from the rotating disk.

[0022] In the aforementioned pneumatic nail gun, the rotating disk has mounting holes, and the retaining pin is circumferentially rotatable within these holes, remaining fixed radially on the rotating disk. The circumferential rotation of the retaining pin within the mounting holes reduces wear between the retaining pin and the firing pin protrusion.

[0023] In the aforementioned pneumatic nail gun, the rotating mechanism includes a rotating disk sleeved on a rotating shaft. The rotating disk and the rotating shaft are circumferentially fixed, and the rotating disk moves axially on the rotating shaft. The rotating disk is circumferentially rotatable on the rotating shaft and is fixed axially on the rotating shaft. When the firing pin moves in the second direction, the rotating disk engages with the rotating disk. When the firing pin moves in the first direction, the rotating disk and the rotating disk disengage.

[0024] In this design, both the rotating disk and the rotary disk are mounted on the rotating shaft. The engagement and disengagement of the rotary disk and the rotating shaft can be achieved through the axial movement of the rotating disk on the rotating shaft, resulting in a simple structure.

[0025] In the aforementioned pneumatic nail gun, the rotating disk is provided with a first ratchet, the rotating disk is provided with a second ratchet, the first ratchet can engage with the second ratchet, the rotating shaft is fitted with a first bearing, the first bearing and the rotating shaft are axially fixed, and the first bearing is located between the rotating disk and the rotating shaft and is located inside the rotating disk.

[0026] In the aforementioned pneumatic nail gun, the first ratchet has several first teeth, and the second ratchet has several second teeth. There is a gap 1 between adjacent first teeth and a gap 2 between adjacent second teeth. The width of gap 1 is greater than the width of the second tooth, and the width of gap 2 is greater than the width of the first tooth. The greater width of gap 1 and gap 2 makes it easier for the first teeth to enter gap 2 and for the second teeth to enter gap 1, thus facilitating easier engagement between the first and second ratchet wheels.

[0027] In the aforementioned pneumatic nail gun, a retaining ring is provided on the rotating disk, and the first bearing is located above the retaining ring. A snap-fit ​​component is also provided inside the rotating disk, with the first bearing positioned between the retaining ring and the snap-fit ​​component. The snap-fit ​​component and the retaining ring confine the first bearing within the rotating disk. The first bearing allows the rotating disk to rotate on the rotating shaft while simultaneously preventing it from moving axially along the rotating shaft. This ensures a more stable engagement between the locking pin and the protrusion on the firing pin, preventing relative movement along the axial direction of the rotating shaft.

[0028] In the aforementioned pneumatic nail gun, the rotating shaft is vertically positioned within the nail gun, and the rotary disc is located above the rotating disk.

[0029] In the pneumatic nail gun described above, the first and second teeth are either strip-shaped or angular.

[0030] In the aforementioned pneumatic nail gun, an elastic element is sleeved on the rotating shaft to engage the rotary disc and the rotating disk. The elastic element abuts against the rotary disc, and a lifting mechanism is connected to the rotary disc to separate the rotary disc from the rotating disk.

[0031] In the aforementioned pneumatic nail gun, the rotary table is provided with a lifting groove. The lifting mechanism includes a lifting rod for cooperating with the lifting groove to lift the rotary table and a drive source. The lifting rod and the drive source are connected. One side of the lifting rod is a straight rod located within the lifting groove, or one side of the lifting rod has an arc-shaped rod with lifting columns at both ends, both of which are located within the lifting groove. The use of an arc-shaped lifting rod makes the lifting of the rotary table more stable. This solution allows the rotary table to move axially along the rotation axis through the cooperation of the lifting rod and the lifting groove, thus disengaging the rotary table from the rotating disk.

[0032] In the aforementioned pneumatic nail gun, the lifting part is connected to the mounting base, a rotating seat is connected to the mounting base, the lifting rod is rotatably mounted on the rotating seat, and the other side of the lifting rod is a moving rod. The driving source includes a first pull rod and a first solenoid. The moving rod is connected to the first pull rod, and the first pull rod is connected to the first solenoid. When the firing pin moves in the first direction, the moving rod moves under the drive of the first pull rod.

[0033] In the aforementioned pneumatic nail gun, the rotating base is equipped with a fixed plate and a rotating plate. The fixed plate is fixed to the mounting base, and the lifting rod is equipped with a rotating plate. The rotating plate and the rotating plate are connected by a pin. The rotating plate is located inside the mounting base and above the rotating disk. When properly positioned, the fixed plate can also limit the movement of the lifting rod.

[0034] In the aforementioned pneumatic nail gun, one end of the first pull rod is equipped with a locking pin, and the moving rod has a through hole. The first pull rod passes through the through hole, and the locking pin drives the moving rod to move. The locking pin drives the moving rod to move through contact. When the turntable is reset under the action of the elastic element, the locking pin no longer acts on the moving rod.

[0035] In the aforementioned pneumatic nail gun, the straight rod has a protrusion at one end located in the lifting groove, the width of the lifting groove is greater than the thickness of the straight rod, and the moving rod and the straight rod or the arc rod are bent and transitioned.

[0036] Another problem with the existing technology is that the present invention proposes a pneumatic nail gun. The technical problem to be solved by the present invention is: how to make the high-pressure gas inside the nail gun less likely to leak after the nail gun has finished nailing.

[0037] The objective of this invention can be achieved through the following technical solution: a pneumatic nail gun, comprising an impact part for driving fasteners inside the nail gun out of the nail gun along a first direction, the impact part comprising a firing pin, the firing pin reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a lifting part for moving the firing pin in the second direction and a locking part for keeping the firing pin locked and not moving in the first direction, the locking part comprising a locking plate, the locking plate being engaged with the firing pin to keep the firing pin locked, characterized in that the locking plate is provided with a pressure relief plate, the pressure relief plate is connected to a pressure relief rod, the movement of the pressure relief rod causing the pressure relief plate to rotate, thereby disengaging the locking plate from the firing pin.

[0038] After the nail gun is used, pressing the pressure relief lever will rotate the pressure relief plate. The rotation of the pressure relief plate will separate the locking plate and the firing pin. The firing pin will move under the action of high-pressure gas until it is no longer subjected to high-pressure gas, making it less likely for high-pressure gas to leak from the nail gun.

[0039] In the aforementioned pneumatic nail gun, the pressure relief rod is also connected to an elastic element 2 for resetting the pressure relief rod.

[0040] In the aforementioned pneumatic nail gun, the locking plate and the pressure relief plate are integrally formed or are separate structures, and the pressure relief rod abuts against the pressure relief plate.

[0041] In the aforementioned pneumatic nail gun, the pressure relief rod is equipped with a pressing block, and the elastic element is sleeved on the pressure relief rod and abuts against the pressing block. The firing pin is no longer subjected to high-pressure gas, and the elastic element acts on the pressing block, causing the pressure relief rod to return to its original position.

[0042] In the aforementioned pneumatic nail gun, there is no spring between the locking plate and the nail gun body to move the locking plate toward the firing pin. The locking part also includes a traction part for moving the locking plate and locking it with the firing pin. The firing pin is provided with a stop top that cooperates with the locking plate to lock the firing pin and a push plate that cooperates with the locking plate to unlock the firing pin. The push plate has an inclined release surface on the side facing the second direction. The release surface causes the locking plate to move away from the firing pin and keeps the locking plate detached from the firing pin during the movement of the firing pin in the first direction.

[0043] In the pneumatic nail gun described above, in the horizontal direction perpendicular to the firing pin, the distance L3 between the outermost edge of the push plate and the firing pin is greater than the distance L4 between the outermost edge of the top plate and the firing pin.

[0044] In the pneumatic nail gun described above, the abutment is a top plate, the top plate has an abutment surface, and the firing pin is also provided with a slot, which is located between the top plate and the push plate.

[0045] In the aforementioned pneumatic nail gun, the locking plate includes a snap-fit ​​plate and a groove adapted to the shape of the push plate. When the locking plate locks the firing pin, the end face of the snap-fit ​​plate abuts against the top surface of the top plate, and the snap-fit ​​plate portion is located within the groove.

[0046] In the aforementioned pneumatic nail gun, the traction unit includes a second solenoid and a second pull rod connected to the second solenoid. The second solenoid is connected to a control system and is fixed on a mounting base. A traction plate is rotatably connected to the end of the second pull rod away from the second solenoid. A traction rod is connected to the traction plate and is rotatably mounted on the mounting base. The traction plate is located on the mounting base. The locking plate also includes a rotating hole in which the traction rod is located. The traction rod locking plate rotates.

[0047] In the aforementioned pneumatic nail gun, the lifting part includes a rotating disk with a rotating shaft, a locking pin on the rotating disk, and a protrusion on the firing pin. The locking pin corresponds to the protrusion and engages with the corresponding protrusion when the firing pin moves.

[0048] This invention addresses the technical problem of "how to restore a nail gun to normal operation simply by removing the deformed nail when it gets stuck" by proposing another pneumatic nail gun.

[0049] The objective of this invention can be achieved through the following technical solution: A pneumatic nail gun, comprising an impact part for driving fasteners inside the nail gun out of the nail gun along a first direction, the impact part comprising a firing pin, the firing pin having a plurality of protrusions continuously arranged thereon, the firing pin reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a lifting part and a locking part for keeping the firing pin locked and preventing it from moving in the first direction, the lifting part comprising a rotating disk and a plurality of locking pins or teeth disposed on the rotating disk, characterized in that the locking pins or teeth are arranged in a ring and continuously spaced on the rotating disk, the locking pins corresponding to the protrusions and engaging with the corresponding protrusions when the firing pin moves, the rotating disk is also connected to a rotating mechanism, the rotating mechanism comprising a rotating shaft and a rotating disk connected to the rotating shaft, the rotating disk driving the rotating shaft to rotate, the rotating disk being disposed on the rotating shaft, when the firing pin moves in the second direction, the rotating shaft driving the rotating disk to rotate, when the firing pin moves in the first direction, the rotating shaft and the rotating disk move relative to each other and the rotating shaft disengages from the rotating disk.

[0050] In this pneumatic nail gun, locking pins are continuously spaced on the rotating disc. During nailing and resetting, the pins remain engaged with the firing pin. The disengagement of the rotating disc from the rotating shaft reduces the resistance experienced by the firing pin during fastening, ensuring effective nailing. Here, disengagement of the rotating disc from the rotating shaft means that the rotation of the rotating disc does not cause the rotating shaft to rotate.

[0051] In this design, the combination of a rotating disk and a rotating shaft enables a rotating mechanism to drive the disk to rotate. The disk lifts the firing pin, and nailing is achieved by disengaging the disk from the rotating shaft. The locking pin remains within the disk and does not need to move radially. It engages with a protrusion on the firing pin. When a nail deforms and becomes stuck in the nail gun, the disk continues to rotate, and the firing pin can still move normally to the ready position. The deformed nail can then be removed, and the nail gun can resume normal operation. In this design, the locking pin can be replaced with a toothed structure.

[0052] In the pneumatic nail gun described above, the rotating disk is fixed in the circumferential direction of the rotating shaft, and the rotating shaft and the rotating disk move relative to each other in the axial direction of the rotating shaft.

[0053] In the aforementioned pneumatic nail gun, the rotating shaft is provided with a third tooth, and the rotating disk is provided with a fourth tooth. When the firing pin moves in the second direction, the third tooth and the fourth tooth engage, and when the firing pin moves in the first direction, the third tooth and the fourth tooth disengage.

[0054] In the pneumatic nail gun described above, the lifting part is connected to the mounting base, the rotating shaft is vertically arranged inside the mounting base, the rotating disk is located below the rotating shaft, the rotating disk is located above the rotating disk, the mounting base is provided with a rotating hole, and the third tooth and the fourth tooth are located inside the rotating hole.

[0055] In the aforementioned pneumatic nail gun, an elastic element three is connected to the rotating shaft to connect the rotating disk and the rotating shaft. The rotating shaft has a push-off groove, and the elastic element three abuts against the push-off groove. The mounting base has a limiting platform, which has a limiting groove and a limiting hole. The upper end of the rotating disk has a rotating shaft one, and a second bearing is connected to the rotating shaft one. The second bearing is located in the limiting groove. The rotating shaft has a rotating plate, which is located in the limiting hole and is higher than the rotating disk.

[0056] In the pneumatic nail gun described above, a second rotating shaft is provided below the rotating disk, a third bearing is connected to the second rotating shaft, and a mounting groove is provided on the mounting base, with the third bearing located in the mounting groove.

[0057] In the aforementioned pneumatic nail gun, the mounting base is provided with a second mounting groove, the second mounting groove is provided with a fourth bearing, and the mounting base is also fixedly connected with a limiting plate that limits the fourth bearing within the second mounting groove. The rotating disk is provided with a rotating rod, and the fourth bearing is sleeved on the rotating rod.

[0058] In the pneumatic nail gun described above, the rotating shaft is provided with a lifting groove, and the lifting groove is connected to a lifting mechanism for separating the rotating disk and the rotating shaft.

[0059] In the aforementioned pneumatic nail gun, the lifting mechanism includes a lifting rod and a drive source for cooperating with a lifting groove to lift the rotating shaft. The lifting rod and the drive source are connected. One side of the lifting rod is a straight rod, which is located inside the lifting groove. Alternatively, one side of the lifting rod may be provided with an arc-shaped rod, and both ends of the arc-shaped rod may be provided with lifting columns, which are all located inside the lifting groove.

[0060] In the aforementioned pneumatic nail gun, a rotating seat is connected to the mounting base, a lifting rod is rotatably mounted on the rotating seat, and a moving rod is located on the other side of the lifting rod. The driving source includes a third pull rod and a third solenoid. The moving rod is connected to the third pull rod, and the third pull rod is connected to the third solenoid. When the firing pin moves in the first direction, the moving rod rotates under the drive of the third pull rod.

[0061] In the pneumatic nail gun described above, the rotating base is provided with a fixed plate and a rotating plate. The fixed plate is fixed on the mounting base. The lifting rod is provided with a rotating piece. The rotating piece and the rotating plate are connected by a pin. The rotating plate is located inside the mounting base and above the rotating disk.

[0062] In the aforementioned pneumatic nail gun, one end of the third pull rod is provided with a locking post, and the first movable rod is provided with a through hole. The third pull rod passes through the through hole, and the locking post drives the first movable rod to move.

[0063] In the aforementioned pneumatic nail gun, the rotating disk is provided with mounting holes, and the locking pin is circumferentially rotatable within the mounting holes, while the locking pin remains fixed radially on the rotating disk.

[0064] In the pneumatic nail gun described above, the rotating mechanism further includes a motor and a reduction mechanism connected to the motor, and the rotating disk is connected to the output of the reduction mechanism. Beneficial effects

[0065] 1. Both the rotating disk and the actuating disk are set on the rotating shaft. The axial movement of the actuating disk separates the actuating disk and the rotating disk, realizing the bidirectional rotation of the rotating disk. This keeps the locking pin engaged with the protrusion on the firing pin. When the nail is deformed and stuck in the nail gun, the rotating disk continues to rotate, and the firing pin can still move normally to the ready position. The deformed nail can be removed and the nail gun can be restored to normal operation.

[0066] 2. Even if the locking pin and protrusion become misaligned during the nailing process, the locking pins are continuously spaced on the rotating disk, and the locking pins and the misaligned protrusions re-establish their engagement relationship. The corresponding pawls and other teeth on the third ratchet mesh, and normal operation can be restored after the locking pin is removed.

[0067] 3. In this design, when driving nails, after the piston moves to the third position, it continues to move a certain distance in the second direction before being lifted to the turntable via the first solenoid and the lifting rod, thereby increasing the nail driving force.

[0068] 4. In this solution, the first bearing is limited within the rotating disk by the snap-fit ​​component and the retaining ring. The first bearing can both allow the rotating disk to rotate on the rotating shaft and prevent the rotating disk from moving in the axial direction of the rotating shaft. This makes the engagement of the snap-fit ​​pin and the protrusion on the ejector pin more stable and prevents relative movement along the axial direction of the rotating shaft.

[0069] 5. After the nail gun is used, pressing the pressure relief lever will rotate the pressure relief plate. The rotation of the pressure relief plate will separate the locking plate and the firing pin. The firing pin will move under the action of high-pressure gas until it is no longer subjected to the action of high-pressure gas, so that the high-pressure gas inside the nail gun will not leak after use. Attached Figure Description

[0070] Figure 1 is a three-dimensional structural diagram of the pneumatic nail gun in this invention;

[0071] Figure 2 is a three-dimensional structural diagram of the pneumatic nail gun in this invention;

[0072] Figure 3 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0073] Figure 4 is an exploded structural diagram of the lifting section of the pneumatic nail gun in this invention;

[0074] Figure 5 is an exploded structural diagram of the lifting section of the pneumatic nail gun in this invention;

[0075] Figure 6 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0076] Figure 7 is a three-dimensional structural schematic diagram of the pneumatic nail gun in this invention;

[0077] Figure 8 is a three-dimensional structural schematic diagram of the pneumatic nail gun in this invention;

[0078] Figure 9 is a schematic diagram of the firing pin and piston of the pneumatic nail gun in this invention;

[0079] Figure 10 is a three-dimensional structural diagram of the pneumatic nail gun of the present invention.

[0080] Figure 11 is a three-dimensional structural diagram of the pneumatic nail gun in this invention;

[0081] Figure 12 is a three-dimensional structural schematic diagram of the pneumatic nail gun in this invention;

[0082] Figure 13 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0083] Figure 14 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0084] Figure 15 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0085] Figure 16 is a three-dimensional structural schematic diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0086] Figure 17 is a three-dimensional structural schematic diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0087] Figure 18 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0088] Figure 19 is an exploded structural diagram of the lifting section of the pneumatic nail gun in Embodiment 2 of the present invention;

[0089] Figure 20 is an exploded structural diagram of the lifting section of the pneumatic nail gun in Embodiment 2 of the present invention;

[0090] Figure 21 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0091] Figure 22 is a three-dimensional structural diagram of the piston and firing pin of the pneumatic nail gun in Embodiment 2 of the present invention;

[0092] Figure 23 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0093] Figure 24 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0094] Figure 25 is a cross-sectional schematic diagram of the pneumatic nail gun in Embodiment 2 of the present invention.

[0095] Figure 26 is a three-dimensional structural schematic diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0096] Figure 27 is a three-dimensional structural schematic diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0097] Figure 28 is a three-dimensional structural schematic diagram of the pneumatic nail gun in Embodiment 2 of the present invention;

[0098] Figure 29 is a three-dimensional structural schematic diagram of Embodiment 4 of the present invention;

[0099] Figure 30 is a three-dimensional structural schematic diagram of the pneumatic nail gun of embodiment six in this invention;

[0100] Figure 31 is a cross-sectional structural diagram of Embodiment 6 of the pneumatic nail gun in this invention;

[0101] Figure 32 is an exploded structural diagram of the lifting section in Embodiment 6 of the pneumatic nail gun of the present invention;

[0102] Figure 33 is an exploded structural diagram of the lifting section in Embodiment 6 of the pneumatic nail gun of the present invention;

[0103] Figure 34 is a three-dimensional structural diagram of the mounting base in Embodiment 6 of the pneumatic nail gun of the present invention;

[0104] Figure 35 is a three-dimensional structural diagram of the piston and firing pin in Embodiment 6 of the pneumatic nail gun of the present invention;

[0105] Figure 36 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment Six of the present invention;

[0106] Figure 37 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment Six of the present invention;

[0107] Figure 38 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment 6 of the present invention;

[0108] Figure 39 is a cross-sectional structural diagram of the pneumatic nail gun in Embodiment Six of the present invention.

[0109] In the diagram, 1 is the impact part; 2 is the cylinder; 3 is the air chamber; 4 is the firing pin; and 4a is the protrusion. 4b. Groove; 4d. Push plate; 4d1. Release surface; 4e. Top plate; 4e1. Top surface; 4e2. Sliding surface; 4f. Slot; 4g. Protrusion 1; 5. Piston; 6. Buffer seat; 7. Cylinder end cover; 8. Mounting seat; 8a. Exhaust hole; 8b. Mounting plate; 8c. Mounting cylinder; 8d. Rotating hole; 8e. Mounting groove 1; 8f. Mounting groove 2; 9. Spike part; 10. Guide plate; 10a. Positioning groove 1; 10b. Positioning groove 2; 11. Lifting part; 12. Rotating disk; 12a. Mounting hole; 12b. First ratchet; 12c. First tooth; 12d. Retaining ring; 12e. Snap-fit ​​part; 12f. Clearance 1; 12g. Rotating shaft 1; 12h. Rotating shaft 2; 12i. Third ratchet; 13. Rotating shaft; 13a. Third tooth; 13b. Abutment groove; 13c. Rotating plate; 13d. Lifting groove one; 13e. Backing plate; 14a. Bearing one; 14b. Bearing two; 15. Cover plate; 16. Locking pin; 16a. Locking pin one; 17. Limiting piece; 18. First bearing; 19. Turntable; 19a. Second ratchet; 19b. Second tooth; 19c. Lifting groove; 19d. Clearance two; 20. Elastic element one; 21. Lifting rod; 21a. Straight rod; 21b. Moving rod; 21c. Protrusion; 21d. Arc rod; 21e. Lifting column; 21f. Through hole; 21g. Rotating piece; 22. First solenoid; 23. First pull rod; 23a. Locking pin; 24. Rotating seat; 24a. Fixed. 24b. Rotating plate; 26. Reduction mechanism; 27. Motor; 28. Locking part; 29. ​​Second solenoid; 30. Second pull rod; 31. Locking plate; 31a. Snap-fit ​​plate; 31b. Rotary hole; 31c. Positioning post; 31d. Positioning hole; 31e. Fixing component; 31f. Positioning ball; 31g. Spring II; 32. Traction plate; 33. Traction rod; 34. Control system; 35. First position sensor; 36. Second position sensor; 37. Third position sensor; 40. Trigger switch; 41. Nail box; 42. Control switch; 43. Nail plate; 44. Pressure relief plate; 45. Pressure relief rod; 45a. Pressing block; 46. Elastic component II; 47. Safety switch; 48. Rotating disk; 48a. 48b. Fourth tooth; 49. Rotating rod; 50. Elastic component three; 50. Limiting platform; 50a. Limiting groove; 50b. Limiting hole; 50c. Relief groove; 51. Limiting plate; 52. Second bearing; 53. Third bearing; 54. Fourth bearing; 55. Lifting rod one; 55a. Arc rod one; 55b. Lifting column one; 55c. Moving rod one; 55d. Through hole one; 55e. Rotating plate one; 56. Rotating seat one; 56a. Fixed plate one; 56b. Rotating plate one; 57. Third pull rod; 58. Third solenoid; 59. Locking post one; 60. Pawl; 60a. Separating plate; 61. Connecting seat; 61a. Connecting plate; 61b. Connecting shaft; 62. Elastic component four; 63. Separating column; 64. Limiting component;65. Retaining ring. The best embodiment of the present invention

[0110] As shown in Figures 1, 2, and 3, a pneumatic nail gun is mainly designed to drive fasteners inside the gun into objects that need to be fastened, such as furniture. In this case, the fasteners are nails. The nail gun includes a housing (the housing is omitted in this embodiment), a handle, an impact part 1, a lifting part 11, a locking part 28, a nail magazine 41, a nail ejection part 9, a power supply, and a control system 34.

[0111] The nail box 41 is located below the nail dispensing part 9. The nail box 41 contains nails. The nails in the nail box 41 will enter the nail dispensing part 9. After the nails in the nail dispensing part 9 are knocked out by the impact part 1, they will be replenished and enter the nail dispensing part 9.

[0112] The lifting unit 11 includes a rotating mechanism, which includes a motor 27. The output shaft of the motor 27 rotates in one direction when the motor 27 is energized.

[0113] A reduction gear 26 is connected to the motor 27. The reduction gear 26 is connected to the rotating shaft 13 in the lifting part 11, which drives the rotating shaft 13 to rotate. The nail gun is also equipped with a power supply unit, which is not shown in this embodiment. The power supply unit is used to provide power to the motor 27 and the control system 34.

[0114] As shown in Figure 3, the impact part 1 of the nail gun is a structure that drives nails into the object to be fastened. The impact part 1 of the nail gun includes a cylinder 2, which is a hollow cylindrical shape. The cylinder 2 includes an inner cylinder wall, and a cylinder end cap 7 is provided at one end of the cylinder 2 to seal one end of the cylinder 2. Under the action of the cylinder end cap 7 and the piston 5, a gas chamber 3 for storing compressed gas is formed inside the cylinder 2.

[0115] A movable piston 5 is provided on the inner wall of cylinder 2. Piston 5 is cylindrical, and its side wall has an annular piston seal, an oil reservoir, and a piston guide. The piston guide is located on both sides of the piston seal. The oil reservoir is used to store lubricating grease and is located between the piston seal and the piston guide (not shown in the figure). The piston guide is made of plastic and is used to ensure smooth movement of piston 5 within cylinder 2, preventing deviation and reducing friction between piston 5 and the inner wall of cylinder 2. Piston 5 reciprocates along a straight line A within cylinder 2. This straight line is an imaginary line representing the centerline of cylinder 2. The piston seal and the inner wall of cylinder 2 contact to form a sealing surface, making it difficult for compressed gas in the air chamber 3 to leak. A magnet is provided inside piston 5, which can be detected by a position sensor and used by control system 34 to determine the position of piston 5 within cylinder 2.

[0116] As shown in Figures 1, 2, 3, 4 and 6, the impact part 1 also includes a firing pin 4 for pushing the nail to move. The firing pin 4 reciprocates in the nail gun in a first direction F1 and a second direction F2 opposite to the first direction F1. When the firing pin 4 moves in the first direction F1, the nail gun performs the nailing function. When the firing pin 4 moves in the second direction F2, the firing pin 4 resets, the gas in the gas chamber 3 is compressed, and the piston 5 is subjected to high pressure.

[0117] As shown in Figure 9, the firing pin 4 is elongated, with one end fixed to the piston 5 and the other end used to strike the nail. Multiple protrusions 4a are distributed along one side of the firing pin 4 to lift it, with a gap between adjacent protrusions 4a forming a groove 4b.

[0118] As shown in Figures 1, 4, and 6, the other end of the cylinder 2 is fixed to the mounting base 8. An exhaust port 8a is provided on the mounting base 8, through which the striking pin 4 can pass. A buffer seat 6 is also provided on the mounting base 8, located between the mounting base 8 and the cylinder 2.

[0119] As shown in Figure 4 and Figure 13, a mounting plate 8b is provided at the front end of the mounting base 8. A nail ejector 9 is provided below the mounting plate 8b. The nail ejector 9 includes a guide plate 10 fixed below the mounting plate 8b and a nail plate 43 located below the guide plate 10. The nail box 41 is fixed to the nail plate 43. In the mounting base 8, a mounting cylinder 8c is also provided on the side of the mounting plate 8b. The mounting cylinder 8c has a lifting part 11 that drives the firing pin 4 to move.

[0120] As shown in Figures 3, 4, and 5, the rotating mechanism includes a rotating shaft 13. Two bearings, bearing 14a and bearing 14b, are vertically arranged in the mounting cylinder 8c. The lower bearing 14b is installed in a mounting groove within the mounting cylinder 8c. A cover plate 15 is fixedly connected to the mounting cylinder 8c, and a mounting groove is also provided within the cover plate 15. The upper bearing 14a is located within the mounting groove of the cover plate 15. The two ends of the rotating shaft 13 are mounted on the two bearings and rotate around its axis B. A reduction mechanism 26 is connected to the lower end of the rotating shaft 13. The reduction mechanism 26 has a racetrack-shaped hole and drives the rotating shaft 13 to rotate.

[0121] As shown in Figures 3, 4, and 5, the lifting section 11 also includes a rotating disk 12 mounted on the rotating shaft 13. The rotating disk 12 has multiple mounting holes 12a arranged in a ring and continuously spaced on the rotating direction. A locking pin 16 is provided in each mounting hole 12a, also arranged in a ring and continuously spaced on the rotating disk 12. The locking pin 16 is cylindrical, and a limiting piece 17 is provided on the rotating disk 12 to prevent the locking pin 16 from dislodging from the mounting hole 12a. The limiting piece 17 is secured to the rotating disk 12 by a clamp. The locking pin 16 can rotate around the center of the mounting hole 12a but cannot move radially on the rotating disk 12. During the lifting of the firing pin 4, the locking pin 16 is located within the groove 4b and abuts against the corresponding protrusion 4a. The locking pin 16 can rotate around its center, thus reducing wear between the locking pin 16 and the protrusion 4a. A third ratchet 12i is provided at the upper end of the rotating disk 12, and a ring of teeth is evenly distributed on the third ratchet 12i. As shown in Figure 6, from a top view, in this embodiment, the motor 27 drives the rotating disk 12 to rotate counterclockwise. A first bearing 18 is sleeved on the rotating shaft 13, and the first bearing 18 and the rotating shaft 13 are axially fixed. The first bearing 18 is located between the rotating disk 12 and the rotating shaft 13 and is located on the inner side of the rotating disk 12. In this embodiment, there are two first bearings 18. The upper end of the first bearing 18 abuts against the inner end face of the rotating disk 12, and a limiting member 64 is also provided inside the rotating disk 12 to limit the first bearing 18 within the rotating disk 12. In this embodiment, the limiting member 64 is a clamp, which is embedded in the inner wall of the rotating disk 12.

[0122] As shown in Figure 3 and Figure 5, a retaining ring 65 is provided below the first bearing 18. The retaining ring 65 is located between the first bearing 18 and the second bearing 14b and abuts against the first bearing 18 and the second bearing 14b. The retaining ring 65, the first bearing 18 and the second bearing 14b play a limiting role for the rotating disk 12, preventing the rotating disk 12 from moving in the axial direction of the rotating shaft 13.

[0123] As shown in Figures 4 and 5, and in conjunction with Figure 3, the rotating mechanism also includes a connecting seat 61 threaded onto the rotating shaft 13. The connecting seat 61 is located above the third ratchet 12i. A backing plate 13e is provided on the rotating shaft 13, positioned between the third ratchet 12i and the connecting seat 61, with the upper end face of the third ratchet 12i abutting against the backing plate 13e. A connecting plate 61a is provided on the connecting seat 61, and a connecting shaft 61b is provided on the connecting plate 61a. A pawl 60 is provided on the connecting shaft 61b, located on the side of the third ratchet, and capable of meshing with the teeth on the third ratchet 12i. A fixing groove 61c is provided on the connecting shaft 61b, and a hole is provided on the pawl 60. The hole in the pawl 60 passes through the connecting shaft 61b and is located above the fixing groove 61c. A clamp is provided in the fixing groove 61c to prevent the pawl 60 from dislodging from the connecting shaft 61b. An elastic element 62 is also provided on the connecting shaft 61b. In this embodiment, the elastic element 62 is a torsion spring. The torsion spring is located between the connecting plate 61a and the third ratchet 12i. A reset hole 1 is provided on the connecting plate 61a, and a reset hole 2 is provided on the ratchet. One end of the torsion spring is located in the reset hole 1, and the other end of the torsion spring is located in the reset hole 2. When the pawl 60 disengages from the third ratchet, the torsion spring undergoes elastic deformation, causing the pawl 60 to be subjected to a force that moves toward the third ratchet.

[0124] As shown in Figure 4 in conjunction with Figures 7 and 8, a separation shaft is fixedly connected to the side wall of the mounting cylinder 8c, and a separation post 63 is provided on the separation shaft. A separation plate 60a is provided on the pawl 60, and the projection of the outer end face of the separation plate 60a on the horizontal plane is a straight line and an arc. When the firing pin 4 moves in the second direction F2, the pawl 60 engages with the third ratchet 12i, and the separation plate 60a and the separation post 63 do not contact each other. When the firing pin 4 moves in the first direction, the arc-shaped end face on the separation plate 60a contacts the separation post 63, the pawl 60 rotates around the connecting shaft 61b, and the pawl 60 disengages from the third ratchet 12i.

[0125] As shown in Figures 10, 11, and 12, the locking part 28 includes a locking plate 31 and a traction part. The traction part includes a second solenoid 29, a second pull rod 30, and the locking plate 31. The second solenoid 29 is connected to the control system 34 and is fixed on the mounting base 8. The second solenoid 29 is a coil with current flowing through it. The second pull rod 30 is provided with a spring to move the second pull rod 30 away from the solenoid. The spring may not be provided on the second pull rod 30; in this embodiment, a spring is provided on the second pull rod 30. The end of the second pull rod 30 away from the second solenoid 29 is rotatably connected to a traction plate 32. A traction rod 33 is connected to the traction plate 32, which is rotatably mounted on the mounting base 8. The traction plate 32 is located above the mounting base 8. The traction rod 33 and the locking plate 31 are connected, causing the locking plate 31 to rotate. The locking plate 31 is engaged with the firing pin 4 for locking the firing pin 4. In this embodiment, the firing pin 4 is locked by rotating the locking plate 31. Alternatively, the firing pin 4 can be locked by moving the locking plate 31 left and right or forward and backward along a straight line A. Or, the firing pin 4 can be locked by moving the locking plate 31 up and down along a straight line.

[0126] As shown in Figure 9 in conjunction with Figures 10, 11, and 12, a push plate 4d is provided on the firing pin 4. The push plate 4d is located on the side of the firing pin 4 opposite to the protrusion 4a, and a disengagement surface 4d1 is provided on the push plate 4d. A stop plate 4e is also provided on the side of the push plate 4d near the piston 5. The stop plate 4e has an arc-shaped stop surface 4e1 and a sliding surface 4e2, with an arc transition between the stop surface 4e1 and the sliding surface 4e2. The stop surface 4e1 and the disengagement surface 4d1 are arranged opposite each other. A groove 4f is formed between the stop plate 4e and the push plate 4d in the firing pin 4. In the horizontal direction perpendicular to the firing pin 4, the distance L3 between the outermost edge of the push plate 4d and the firing pin 4 is greater than the distance L4 between the outermost edge of the stop plate 4e and the firing pin 4. When the locking plate 31 locks the firing pin 4, the end face of the snap plate 31a abuts against the abutting surface 4e1 of the abutting plate 4e, and part of the snap plate 31a is located in the snap groove 4f. The locking plate 31 also includes a racetrack-shaped rotating hole 31b, in which the traction rod 33 is located, and the locking plate 31 rotates around the traction rod 33. The locking plate 31 is also provided with a positioning post 31c, in which a positioning hole 31d is provided. A second spring 31g is provided in the positioning hole 31d. One end of the second spring 31g abuts against the positioning ball 31f, and the other end of the second spring 31g abuts against the fixing member 31e. The fixing member 31e and the positioning post 31c are fixedly connected by threads to restrict the second spring 31g and the positioning ball 31f within the positioning hole 31d. Two positioning grooves are provided on the guide plate 10, namely positioning groove 10a and positioning groove 10b. The positioning ball 31f is located in the positioning groove, so that the locking plate 31 is stable relative to the guide plate 10. As an alternative, positioning groove 10a and positioning groove 10b can be set on the mounting base 8 or other places, as long as the locking plate 31 can be kept stable.

[0127] The firing pin 4 moves with the piston 5, which has three positions within the cylinder 2. As shown in Figure 1, the nail gun is equipped with a first position sensor 35 to detect when the piston 5 moves to the first position. The first position sensor 35 is connected to the control system 34 and is used to detect whether the nail gun is stuck. If the first position sensor 35 does not detect the piston 5 during a nailing process, it indicates that the nail gun is stuck. When the first position sensor 35 detects the piston 5, it means that the firing pin 4 has completed nailing. The control system 34 controls the motor 27 to continue rotating. The motor 27 drives the rotating shaft 13 to rotate through the reduction mechanism 26. The connecting seat 61 on the rotating shaft 13 rotates with the rotating shaft 13 and drives the pawl 60 to move. At this time, the separating plate 60a and the separating column 63 separate, and the pawl 60 meshes with the teeth on the third ratchet. When the nail gun is working normally, the meshing position of the pawl 60 and the teeth on the third ratchet corresponds to the engagement position of the locking pin 16 on the rotating disk 12 and the protrusion on the firing pin 4. As shown in Figure 1 and Figure 6, the nail gun is equipped with a second position sensor 36 for detecting the piston 5 moving to the second position. The second position sensor 36 is connected to the control system 34. The piston 5 is located in the second position of the cylinder 2. The control system 34 controls the second solenoid 29 to work, so that the firing pin 4 is locked by the locking plate 31. That is, the end face of the snap plate 31a abuts against the abutting surface 4e1 of the abutting plate 4e. The snap plate 31a is also located in the snap groove 4f, and the positioning ball 31f is located in the positioning groove 10a. The nail gun is equipped with a third position sensor 37 for detecting the piston 5 moving to the third position. The third position sensor 37 is connected to the control system 34. When the piston 5 is in the third position, as shown in Figure 1 combined with Figures 8 and 14, it is the top dead center of the piston 5 in the cylinder 2. The firing pin 4 is not locked by the locking plate 31 and is in the unlocked state. The positioning ball 31f is located on the positioning groove 10b. The outer end face of the separating plate 60a is projected as an arc on the horizontal plane and abuts against the separating column 63. The separating plate 60a drives the ratchet to rotate, so that the ratchet and the third pawl 60 are separated. The rotating shaft 13 and the rotating disk 12 no longer interact. The piston 5 is driven by the high pressure gas in the air chamber 3, which drives the firing pin 4 to move in the first direction. The firing pin 4 drives the rotating disk 12 to rotate, and the firing pin 4 realizes nailing.

[0128] As shown in Figure 1, the power supply unit has a housing and multiple battery cells housed within it. The nail gun also includes a safety switch 47, a control switch 42, and a trigger switch 40. When the control switch 42 is pressed, the nail gun's control system 34 can begin operation. Both the trigger switch 40 and the control switch 42 are located on the handle, which is not shown in the figure. The trigger switch 40 detects the presence or absence of operating force applied to the handle. The trigger switch 40 is connected to the control system 34 and outputs a signal corresponding to the detection result. The safety switch 47 is also connected to the control system 34. When the nail gun is in use, the safety switch 47 is pressed against an object, and after the trigger switch 40 is activated, the nail gun begins nailing.

[0129] The working principle of the nail gun is as follows: As shown in Figure 6, when the nail gun is not turned on, the piston 5 is in the first position; as shown in Figure 13, when the nail gun is turned on and the gun control switch 42 is turned on, the motor 27 works, and the motor 27 drives the rotating shaft 13 to rotate through the reduction mechanism 26. Since the pawl 60 and the third ratchet are engaged, the rotating shaft 13 drives the rotating disk 12 to rotate. The locking pin 16 on the rotating disk 12 abuts against the protrusion 4a of the firing pin 4 to lift the firing pin 4. The piston 5 moves from the first position to the second position. At this time, the control system 34 controls the second solenoid 29 to work, so that the firing pin 4 is locked by the locking plate 31. After the firing pin 4 is locked, the second solenoid 29 is de-energized. The projection of the outer end face of the separating plate 60a on the horizontal plane is a straight part that is opposite to the separating column 63 but does not contact it. At this time, the pawl 60 and the third ratchet 12i are still engaged; as shown in Figures 7, 8 and 14, when the nail gun is turned on and the safety switch 47 and the trigger switch 40 are both turned on, the motor 27 drives the rotating shaft 13 to rotate through the reduction mechanism 26. As the rotating disk 12 rotates, when the piston 5 moves from the second position to the third position, the projection of the outer end face of the separating plate 60a on the horizontal plane is an arc portion that contacts the separating column 63. The separating plate 60a rotates toward the center of the rotating disk 12, and the pawl 60 rotates away from the center of the rotating disk 12 and disengages from the third ratchet. The rotating disk 12 disengages from the rotating shaft 13, and the torsion spring is in a compressed state. The locking plate 31a on the locking plate 31 slides from the slot 4f across the release surface 4d1 to reach the farthest position from the firing pin 4. The positioning ball 31f is located on the positioning groove 10b, and the firing pin 4 is no longer locked by the locking plate 31. The piston 5 moves from the third position to the first direction under the action of the high-pressure gas in the air chamber 3. The front part of the firing pin 4 strikes the nail to achieve nailing. During this process, the firing pin 4 drives the rotating disk 12 to rotate together but does not drive the rotating shaft 13 to rotate. As shown in Figure 6, from a top view, the firing pin 4 drives the rotating disk 12 to rotate clockwise. After nailing is completed, piston 5 moves from the third position to the first position. When piston 5 moves to the first position, the separating plate 60a disengages from the separating post 63, and pawl 60 moves towards the center of rotating disk 12 under the action of torsion spring, re-engaging with the third ratchet 12i. The teeth on the third ratchet 12i that engage with pawl 60 when piston 5 moves to the first position are also the teeth on the third ratchet 12i that engage with pawl 60 when piston 5 is in the second position. This is because when piston 5 is in the first position, the locking pin 16 on rotating disk 12 and the protrusion 4a on firing pin 4 correspond. When piston 5 moves from the first position to the second position, the teeth on pawl 60 and the third ratchet 12i remain engaged. In order for the nail gun to be able to nail repeatedly, the teeth on the third ratchet 12i that engage with pawl 60 when piston 5 moves to the first position are also the teeth on the third ratchet 12i that engage with pawl 60 when piston 5 is in the second position.After the nailing is completed, the motor 27 continues to rotate, driving the rotating shaft 13 to rotate through the reduction mechanism 26. The rotating shaft 13 drives the rotating disk 12 to rotate, and the rotating disk 12 drives the firing pin 4 to move in the second direction. The piston 5 moves back to the second position, the second solenoid 29 is energized, and the locking plate 31 moves in the direction of the firing pin 4 to lock the firing pin 4. When the firing pin 4 is locked by the locking plate 31, the second solenoid 29 is de-energized after the firing pin 4 is locked. That is, the end face of the snap plate 31a abuts against the abutting surface 4e1 of the abutting plate 4e. The snap plate 31a part is still located in the snap groove 4f, and the positioning ball 31f is located in the positioning groove 10a.

[0130] In this embodiment, when the nail gun is working normally, the protrusion 4h at the end furthest from the piston 5 on the firing pin 4 and its corresponding locking pin 16b do not participate in the lifting of the firing pin 4. That is, when the piston is in the third position, the locking pin behind the protrusion 4h and the corresponding locking pin disengage.

[0131] As shown in Figure 15, when the firing pin 4 moves from the third position to the first direction, a jamming situation may occur. In this embodiment, when the jamming occurs, the protrusion 4h at the end of the firing pin 4 furthest from the piston 5 is activated. Due to the different lengths of the jamming pins, different situations may occur.

[0132] The method to resolve the jamming issue is as follows: During a nailing process, when the first position sensor 35 does not detect the piston 5, the motor 27 continues to rotate until the pawl 60 re-engages with the third ratchet 12i. At this time, the teeth on the pawl 60 and the third ratchet 12i are misaligned. When the piston 5 moves to the second position, the motor 27 stops working, the firing pin 4 is locked by the locking plate 31, and the separating plate 60a has not reached the designated position. At this time, the jammed nail is removed. When the nail gun continues to work, the motor 27 continues to rotate, the rotating disk 12 continues to lift the firing pin 4 in the second direction, and the piston 5 continues to move in the second direction after passing the third position. When the protrusion 4h at the end of the firing pin 4 furthest from the piston 5 separates from the locking pin 16b, if the outermost arc surface of the separating plate 60a contacts the separating post 63, causing the third ratchet and pawl 60 to separate, the piston 5 is acted upon by the high-pressure gas in the air chamber 3, driving the firing pin 4 to move in the first direction, thus achieving nailing. The firing pin 4 then resumes normal operation.

[0133] When the protrusion 4h furthest from the piston 5 on the firing pin 4 separates from the locking pin 16b, if the outermost arc surface of the separating plate 60a has not yet contacted the separating post 63, the protrusion 4h and the locking pin 16b are misaligned, and the protrusion 4h engages with the locking pin 16c behind the locking pin 16b, until the outermost arc surface of the separating plate 60a contacts the separating post 63, causing the ratchet and pawl 60 to separate. Otherwise, the protrusion 4h continues to engage with the locking pin 16d behind the locking pin 16c. When the firing pin 4 moves to the first position, since the locking pins 16 on the rotating disk 12 are distributed in a ring, the protrusion 4a and the locking pins 16 re-establish their correspondence. At this time, the teeth on the pawl 60 and the third ratchet 12i mesh, and after the nail gun resumes normal operation, these teeth always mesh with the pawl 60. In this embodiment, even without the protrusion 4h, the same working principle is used to allow the nail gun to resume normal operation when the nail gets stuck. Embodiments of the present invention Example 2

[0134] As shown in Figures 16, 17, and 18, a nail gun is mainly designed to drive nails into objects that need to be fastened, such as furniture. The nail gun includes a housing (the housing is omitted in this embodiment), a handle, an impact part 1, a lifting part 11, a locking part 28, a nail magazine 41, a nail ejection part 9, a power supply part, and a control system 34.

[0135] The nail box 41 is located below the nail dispensing part 9. The nail box 41 contains nails. The nails in the nail box 41 will enter the nail dispensing part 9. After the nails in the nail dispensing part 9 are knocked out by the impact part 1, they will be replenished and enter the nail dispensing part 9.

[0136] The lifting unit 11 includes a rotating mechanism, which includes a motor 27. The output shaft of the motor 27 rotates in one direction when the motor 27 is energized. A reduction gear 26 is connected to the motor 27, and the reduction gear 26 is connected to the rotating shaft 13 in the lifting unit 11 to drive the rotating shaft 13 to rotate. A power supply unit is provided below the handle to provide power to the motor 27 and a control system 34.

[0137] As shown in Figure 18, the impact part 1 of the nail gun is a structure that drives nails into the object to be fastened. The impact part 1 of the nail gun includes a cylinder 2, which is a hollow cylindrical shape. The cylinder 2 includes an inner cylinder wall, and a cylinder end cap 7 is provided at one end of the cylinder 2 to seal one end of the cylinder 2. Under the action of the cylinder end cap 7 and the piston 5, a gas chamber 3 for storing compressed fluid is formed inside the cylinder 2.

[0138] A movable piston 5 is mounted on the inner wall of cylinder 2. Piston 5 is cylindrical, and its sidewalls feature an annular piston seal, an oil reservoir, and a piston guide. The piston guide is located on both sides of the piston seal. The oil reservoir, used to store lubricating grease, is located between the piston seal and the piston guide (not shown in the figure). The piston guide is made of plastic and facilitates smooth movement of piston 5 within cylinder 2, preventing deviation and reducing friction between piston 5 and the inner wall of cylinder 2. Piston 5 reciprocates along a straight line A, an imaginary line representing the centerline of cylinder 2. The piston seal and the inner wall of cylinder 2 form a sealing surface, preventing leakage of compressed gas from the air chamber 3. A magnet is installed inside piston 5, detectable by a position sensor to determine the piston 5's position within cylinder 2.

[0139] As shown in Figures 16, 17, 18, 19 and 21, the impact part 1 also includes a firing pin 4 for pushing the nail to move. The firing pin 4 reciprocates in the nail gun in a first direction F1 and a second direction F2 opposite to the first direction F1. When the firing pin 4 moves in the first direction F1, the nail gun performs the nailing function. When the firing pin 4 moves in the second direction F2, the firing pin 4 resets, the gas in the gas chamber 3 is compressed, and the piston 5 is subjected to high pressure.

[0140] As shown in Figure 22, the firing pin 4 is elongated, with one end fixed to the piston 5 and the other end used to strike the nail. Multiple protrusions 4a are distributed along one side of the firing pin 4 to lift it, with a gap between adjacent protrusions 4a forming a groove 4b.

[0141] As shown in Figures 16, 19, and 21, the other end of the cylinder 2 is fixed to the mounting base 8. An exhaust port 8a is provided on the mounting base 8, through which the firing pin 4 can pass. A buffer seat 6 is also provided on the mounting base 8, located between the mounting base 8 and the cylinder 2.

[0142] As shown in Figure 19 and Figure 28, a mounting plate 8b is provided at the front end of the mounting base 8. A nail ejector 9 is provided below the mounting plate 8b. The nail ejector 9 includes a guide plate 10 fixed below the mounting plate 8b and a nail plate 43 located below the guide plate 10. The nail box 41 is fixed to the nail plate 43. In the mounting base 8, a mounting cylinder 8c is also provided on the side of the mounting plate 8b. The mounting cylinder 8c contains a lifting part 11 that drives the firing pin 4 to move.

[0143] As shown in Figure 18 in conjunction with Figures 19 and 20, the rotating mechanism includes a rotating shaft 13. Two bearings are vertically arranged in the mounting cylinder 8c. The lower bearing 14b is installed in a mounting groove within the mounting cylinder 8c. A cover plate 15 is fixedly connected to the mounting cylinder 8c, and a mounting groove is also provided within the cover plate 15. The upper bearing 14a is located within the mounting groove of the cover plate 15. The two ends of the rotating shaft 13 are mounted on the two bearings and rotate around its axis B. A reduction mechanism 26 is connected to the lower end of the rotating shaft 13, driving the rotating shaft 13 to rotate.

[0144] As shown in Figure 18 in conjunction with Figures 19 and 20, the lifting part 11 also includes a rotating disk 12 disposed on the rotating shaft 13. The rotating disk 12 has a plurality of mounting holes 12a arranged along the rotation direction. The mounting holes 12a are arranged in a ring and continuously spaced on the rotating disk 12. A locking pin 16 is disposed in each mounting hole 12a. The locking pin 16 is arranged in a ring and continuously spaced on the rotating disk 12. The locking pin 16 is cylindrical. A limiting piece 17 is provided on the rotating disk 12 to prevent the locking pin 16 from dislodging from the mounting hole 12a. The limiting piece 17 is fixed on the rotating disk 12 by a clamp. The locking pin 16 can rotate around the center of the mounting hole 12a but cannot move radially on the rotating disk 12. During the lifting of the firing pin 4, the locking pin 16 is located in the groove 4b and abuts against the corresponding protrusion 4a.

[0145] The rotating mechanism also includes a rotating disk 19 sleeved on the rotating shaft 13. The rotating disk 19 and the rotating shaft 13 are circumferentially fixed, and the rotating disk 19 is movable in the axial direction of the rotating shaft 13. A rotating disk 12 is circumferentially rotatable on the rotating shaft 13 and is fixed in the axial direction of the rotating shaft 13. The rotating disk 19 is located above the rotating disk 12, and the deceleration mechanism 26 is located below the rotating disk 12. Specifically, a first bearing 18 is sleeved on the rotating shaft 13. The first bearing 18 and the rotating shaft 13 are axially fixed. The first bearing 18 is located between the rotating disk 12 and the rotating shaft 13 and is located inside the rotating disk 12. In this embodiment, there are two first bearings 18. A retaining ring 12d is provided on the rotating disk 12, and the first bearing 18 is located above the retaining ring 12d. A snap-fit ​​member 12e is also provided inside the rotating disk 12, and the first bearing 18 is located between the retaining ring 12d and the snap-fit ​​member 12e. In this embodiment, the snap-fit ​​member 12e is a clamp. A first ratchet 12b is provided on the rotating disk 12, and a second ratchet 19a is provided on the rotating disk 19. The first ratchet 12b can engage with the second ratchet 19a. The first ratchet 12b is provided with a plurality of first teeth 12c, and the second ratchet 19a is provided with a plurality of second teeth 19b. There is a gap 12f between adjacent first teeth 12c, and there is a gap 19d between adjacent second teeth 19b. The width of the gap 12f is greater than the width of the second tooth 19b, and the width of the gap 19d is greater than the width of the first tooth 12c. In this embodiment, the teeth are elongated.

[0146] As shown in Figure 18 in conjunction with Figures 19 and 20, an elastic element for engaging the rotating disk 19 and the rotating disk 12 is also sleeved on the rotating shaft 13. In this embodiment, the elastic element is a first spring 20. One end of the first spring 20 abuts against the rotating disk 19, and the other end abuts against the bearing 14a. A lifting groove 19c is provided on the rotating disk 19. The nail gun also includes a lifting rod 21 for cooperating with the lifting groove 19c to lift the rotating disk 19. A rotating seat 24 is fixedly connected to the mounting cylinder 8c of the mounting base 8. The lifting rod 21 is rotatably mounted on the rotating seat 24. A fixing plate 24a and a rotating plate 24b are provided on the rotating seat 24. The fixing plate 24a is fixed on the mounting cylinder 8c. A rotating piece 21g is provided on the lifting rod 21. The rotating piece 21g and the rotating plate 24b are connected by a pin. The rotating plate 24b is located inside the mounting cylinder 8c and above the rotating disk 12. One side of the lifting rod 21 is provided with an arc-shaped rod 21d, and both ends of the arc-shaped rod 21d are provided with lifting columns 21e, both of which are located within the lifting groove 19c. The other side of the lifting rod 21 is a moving rod 21b, which is connected to a drive source. The drive source includes a first pull rod 23 and a first solenoid 22. The first pull rod 23 is connected to the first solenoid 22, and the moving rod 21b is connected to the first pull rod 23. When the striking pin 4 moves in the first direction, the moving rod 21b rotates under the drive of the first pull rod 23. Specifically, one end of the first pull rod 23 is provided with a locking pin 23a, and the moving rod 21b is provided with a through hole 21f. The first pull rod 23 passes through the through hole 21f, and the locking pin 23a drives the moving rod 21b to move.

[0147] As shown in Figures 26, 27, and 28, the locking part 28 includes a locking plate 31 and a traction part. The traction part includes a second solenoid 29, a second pull rod 30, and the locking plate 31. The second solenoid 29 is connected to the control system 34 and is fixed to the mounting base 8. The second solenoid 29 is a coil with current flowing through it. The second pull rod 30 is provided with a spring to move the second pull rod 30 away from the solenoid. Alternatively, the second pull rod 30 may not have a spring; in this embodiment, the second pull rod 30 does not have a spring.

[0148] The end of the second pull rod 30 furthest from the second solenoid 29 is rotatably connected to a traction plate 32. A traction rod 33 is connected to the traction plate 32, and the traction rod 33 is rotatably mounted on the mounting base 8. The traction plate 32 is located above the mounting base 8. The traction rod 33 is connected to the locking plate 31, which drives the locking plate 31 to rotate. The locking plate 31 is engaged with the firing pin 4 to lock the firing pin 4. In this embodiment, the firing pin 4 is locked by rotating the locking plate 31. Alternatively, the firing pin 4 can be locked by moving the locking plate 31 left and right or back and forth along a straight line A, or by moving the locking plate 31 up and down along a straight line.

[0149] As shown in Figure 22 in conjunction with Figures 25, 26, and 27, a push plate 4d is provided on the firing pin 4. The push plate 4d is located on the side of the firing pin 4 opposite to the protrusion 4a, and a disengagement surface 4d1 is provided on the push plate 4d. A stop plate 4e is also provided on the side of the push plate 4d near the piston 5. The stop plate 4e has an arc-shaped stop surface 4e1 and a sliding surface 4e2, with an arc transition between the stop surface 4e1 and the sliding surface 4e2. The stop surface 4e1 and the disengagement surface 4d1 are positioned opposite each other. A groove 4f is also provided on the firing pin 4, and one side wall of the groove 4f is connected to the stop surface 4e1. In the horizontal direction perpendicular to the firing pin 4, the distance L3 between the outermost edge of the push plate 4d and the firing pin 4 is greater than the distance L4 between the outermost edge of the stop plate 4e and the firing pin 4. When the locking plate 31 locks the firing pin 4, the end face of the snap plate 31a abuts against the abutting surface 4e1 of the abutting plate 4e, and part of the snap plate 31a is located in the snap groove 4f. The locking plate 31 also includes a racetrack-shaped rotating hole 31b, in which the traction rod 33 is located, and the locking plate 31 rotates around the traction rod 33. The locking plate 31 is also provided with a positioning post 31c, in which a positioning hole 31d is provided. A second spring 31g is provided in the positioning hole 31d. One end of the second spring 31g abuts against the positioning ball 31f, and the other end of the second spring 31g abuts against the fixing member 31e. The fixing member 31e and the positioning post 31c are fixedly connected by threads to restrict the second spring 31g and the positioning ball 31f within the positioning hole 31d. Two positioning grooves are provided on the guide plate 10, namely positioning groove 10a and positioning groove 10b. The positioning ball 31f is located in the positioning groove, so that the locking plate 31 is stable relative to the guide plate 10. As an alternative, positioning groove 10a and positioning groove 10b can be set on the mounting base 8 or other places, as long as the locking plate 31 can be kept stable.

[0150] The firing pin 4 moves with the piston 5, which has three positions within the cylinder 2. As shown in Figure 1, the nail gun is equipped with a first position sensor 35 to detect when the piston 5 moves to the first position. The first position sensor 35 is connected to the control system 34 and is used to detect whether the nail gun is stuck. If the first position sensor 35 does not detect the piston 5 during a nailing process, it indicates that the nail gun is stuck. When the first position sensor 35 detects the piston 5, the control system 34 de-energizes the first solenoid, causing the turntable 19 to engage with the rotating disk under the action of the first spring. As shown in Figure 9, the piston 5 is in the first position, which is the bottom dead center of the piston 5 within the cylinder 2. At this time, the firing pin 4 drives the nail into the target part. The nail gun is equipped with a third position sensor 37 for detecting that the piston 5 has moved to the third position. The third position sensor 37 is connected to the control system 34. When the piston 5 is in the third position, as shown in Figure 8 and Figure 10, it is the upper dead point of the piston 5 in the cylinder 2. The firing pin 4 is not locked by the locking plate 31 and is in the unlocked state. The positioning ball 31f is located on the positioning groove 10b. The control system 34 controls the first solenoid 22 to work. The lifting rod 21 rotates, causing the turntable 19 and the rotating disk 12 to separate. The firing pin 4 moves in the first direction to realize nailing. As shown in Figure 1 and Figure 6, the nail gun is equipped with a second position sensor 36 for detecting the piston 5 moving to the second position. The second position sensor 36 is connected to the control system 34. The piston 5 is in the second position of the cylinder 2. The control system 34 controls the second solenoid 29 to work, so that the firing pin 4 is locked by the locking plate 31. That is, the end face of the snap plate 31a abuts against the abutting surface 4e1 of the abutting plate 4e. The snap plate 31a is also located in the snap groove 4f, and the positioning ball 31f is located in the positioning groove 10a.

[0151] As shown in Figure 16, the power supply unit has a housing and multiple battery cells housed within it. The nail gun also includes a safety switch 47, a control switch 42, and a trigger switch 40. When the control switch 42 is pressed, the nail gun's control system 34 can begin operation. Both the trigger switch 40 and the control switch 42 are located on the handle, which is not shown in the figure. The trigger switch 40 detects the presence or absence of operating force applied to the handle. The trigger switch 40 is connected to the control system 34 and outputs a signal corresponding to the detection result. The safety switch 47 is also connected to the control system 34. When the nail gun is in use, the safety switch 47 is pressed against an object, and after the trigger switch 40 is activated, the nail gun begins nailing.

[0152] The working principle of the nail gun is as follows: As shown in Figure 24, when the nail gun is not turned on, the piston 5 is in the first position; as shown in Figure 21, when the nail gun control switch 42 is turned on, the motor 27 works. Due to the engagement of the turntable 19 and the rotating disk 12, the rotating shaft drives the rotating disk to rotate. The locking pin 16 on the rotating disk 12 abuts against the protrusion 4a of the firing pin 4, lifting the firing pin. The piston 5 moves from the first position to the second position. At this time, the control system 34 controls the second solenoid 29 to work, so that the firing pin 4 is locked by the locking plate 31. After the second solenoid 29 is de-energized; as shown in Figure 7, when the nail gun is turned on, and both the safety switch 42 and the trigger switch 40 are turned on, the motor 27 drives the rotating disk 12 to rotate. When the piston 5 moves from the second position to the third position, the locking plate 31a on the locking plate 31 slides from the slot 4f across the release surface 4d1 to reach the farthest position from the firing pin 4. The positioning ball 31f is located on the positioning groove 10b, and the firing pin 4 is no longer locked by the locking plate 31. The first solenoid 22 is energized, and the first pull rod 23 moves downward. The first pull rod 23 drives the lifting rod 21 to rotate, disengaging the rotating disk 12 and the actuating disk 19. The piston 5, under the action of high-pressure gas, drives the firing pin 4 to move in the first direction to drive the nail. Because the rotating disk 12 and the actuating disk 19 are disengaged, the rotating disk will not drive the rotating shaft to rotate. After the nail in the nail gun is fired, the piston 5 moves to the first position, the first solenoid 22 is de-energized, and the actuating disk 19 moves downward under the action of the first spring 20 to engage with the rotating disk 12. The motor 27 continues to rotate, driving the rotating shaft 13. Rotation: Rotating shaft 13 drives rotating disk 12 to rotate, rotating disk 12 drives firing pin 4 to move in the second direction, piston 5 moves back to the second position, second solenoid 29 is energized, locking plate 31 moves in the direction of firing pin 4 to lock firing pin 4. When firing pin 4 is locked by locking plate 31, the second solenoid 29 is de-energized after firing pin 4 is locked, that is, the end face of snap plate 31a abuts against the abutting surface 4e1 of abutting plate 4e, the snap plate 31a part is still located in the snap groove 4f, and the positioning ball 31f is located in the positioning groove 10a.

[0153] In addition to the above working method, an additional protrusion is set at the front end of the firing pin 4, and a corresponding locking pin is set on the rotating disk 12. When the nail gun is firing, when the piston 5 moves to the third position, the control system 34 controls the first solenoid 22 to stop working, the motor 27 continues to drive the rotating disk 12 to rotate, the locking pin 1 and the protrusion 1 continue to move, driving the firing pin 4 to continue to move in the second direction, and the locking plate 31 does not lock the firing pin 4; after the rotating disk 12 has rotated through a certain angle, the control system 34 controls the first solenoid 22 to work, the first solenoid 22 is energized, the first pull rod 23 moves downward, the first pull rod 23 drives the lifting rod 21 to rotate, the rotating disk 12 and the rotating disk 19 disengage, the firing pin 4 moves in the first direction, the firing pin 4 drives the rotating disk 12 to rotate together. With this nail firing method, the nail firing force is greater than the above working method.

[0154] When the firing pin 4 moves from the third position to the first direction, a nail jamming situation may occur. The solution to the nail jamming is as follows: During a nailing process, when the first position sensor 35 does not detect the piston 5, the first solenoid 22 is de-energized, the motor 27 continues to rotate, and the motor 27 continues to rotate, driving the rotating shaft 13 to rotate. The rotating shaft 13 drives the turntable 19 to rotate until the turntable 19 moves downward under the action of the first spring 20 and engages with the rotating disk 12. The rotating shaft 13 drives the rotating disk 12 to rotate, and the rotating disk 12 drives the firing pin 4 to move in the second direction. The piston 5 moves back to the second position, the second solenoid 29 is energized, and the locking plate 31 moves towards the firing pin 4 to lock the firing pin 4. When the firing pin 4 is locked by the locking plate 31, the second solenoid 29 is de-energized. At this time, the jammed nail can be removed, and the nail gun can resume normal operation. Example 3

[0155] Referring to the figure in Embodiment 2, after the nail gun is used up, the control switch 42 is released to cut off the power to the nail gun. Since the piston is still in the second position at this time, in order to avoid leakage of high-pressure gas in the air chamber, this embodiment is equipped with a pressure relief structure to make the piston return to the first position.

[0156] A pressure relief plate 44 is integrally or separately provided on the locking plate 31. In this embodiment, the locking plate 31 and the pressure relief plate 44 are an integral structure. A pressure relief rod 45 is connected to the pressure relief plate 44. The pressure relief rod 45 is installed on the housing, which is not shown in this embodiment. The movement of the pressure relief rod 45 causes the pressure relief plate 44 to rotate, thereby disengaging the locking plate 31 from the firing pin 4. An elastic element for resetting the pressure relief rod 45 is also connected to the pressure relief rod 45. A pressing block 45a is provided on the pressure relief rod 45. The elastic element is sleeved on the pressure relief rod 45 and abuts against the pressing block 45a. In this embodiment, the elastic element is a second spring 46. After the nail gun is used, pressing the pressure relief rod 45 causes the pressure relief plate 44 to rotate. The rotation of the pressure relief plate 44 causes the locking plate 31 and the firing pin 4 to separate. The firing pin 4 moves under the action of high-pressure gas until the firing pin 4 is no longer subjected to the action of high-pressure gas, so that the high-pressure gas in the nail gun cylinder 2 is less likely to leak. When the pressing block 45a is released, the pressure relief rod 45 returns to its original position under the action of the second spring 46. During this process, the first solenoid does not operate. Example 4

[0157] As shown in Figure 29, the structures of this embodiment and Embodiment 2 are basically the same, except that the structure of the lifting rod is slightly different. In this embodiment, one side of the lifting rod 21 is a straight rod 21a, and the moving rod 21b and the straight rod 21a are bent and transitioned. There is no rotating plate on the lifting rod. The end of the straight rod 21a located in the lifting groove has a protrusion 21c, and the width of the lifting groove is greater than the thickness of the straight rod. Example 5

[0158] The structure of this embodiment is basically the same as that of Embodiment 2, with the rotating disk positioned above the rotating disk, and other structures adjusted accordingly. Example 6

[0159] The structure of this embodiment is basically the same as that of Embodiment 2, except that the separation of the rotating disk 12 and the rotating mechanism is different.

[0160] As shown in Figure 30 in conjunction with Figures 31, 32, and 33, in this embodiment, two bearings are provided in the mounting cylinder 8c along the vertical direction, namely the second bearing 52 and the third bearing 53. The upper end of the rotating disk 12 is provided with a rotating shaft 12g, and the lower end of the rotating disk 12 is provided with a rotating shaft 12h. The second bearing 52 is sleeved on the rotating shaft 12g, and the third bearing 53 is sleeved on the rotating shaft 12h.

[0161] As shown in Figure 34, a stepped groove is provided on the inner wall of the mounting cylinder 8c. A limiting platform 50 is installed on the stepped groove. The limiting platform 50 has a limiting groove 50a and a limiting hole 50b. The second bearing 52 is located in the limiting groove 50a. A mounting groove 8e is provided inside the mounting cylinder 8c, and the third bearing 53 is located in the mounting groove 8e. The rotating disk 12 is sleeved on the rotating shaft 13, which is vertically arranged inside the mounting cylinder 8c. The rotating shaft 13 has a racetrack-shaped rod, and the rotating disk 12 has a racetrack-shaped hole. The rod of the rotating shaft 13 is located in the hole of the rotating disk 12. This connection method keeps the rotating disk 12 fixed in the circumferential direction of the rotating shaft 13 and allows relative movement between the rotating shaft 13 and the rotating disk 12 in the axial direction of the rotating shaft 13. A rotating plate 13c is provided above the rod of the rotating shaft 13, and the rotating plate 13c is located in the limiting hole 50b. The upper end of the rotating shaft 13 is provided with a support groove 13b, and one end of the elastic element 49 abuts against the bottom of the support groove 13b. The elastic element 49 engages the rotating shaft 13 with the rotating disk 48 connected to the rotating shaft 13. A cover plate 15 is provided on the mounting cylinder 8c, and a groove is provided on the cover plate 15. The other end of the elastic element 49 abuts against the bottom of the groove of the cover plate 15.

[0162] A lifting groove 13d is provided above the top groove 13b of the rotating plate 13c and below it. A lifting mechanism 1 for separating the rotating disk 48 and the rotating shaft 13 is connected to the lifting groove 13d. The lifting mechanism 1 includes a lifting rod 55 for cooperating with the lifting groove 13d to lift the rotating shaft 13 and a drive source. The lifting rod 55 and the drive source are connected. An arc-shaped rod 55a is provided on one side of the lifting rod 55. The arc-shaped rod 55a is semi-circular. Lifting columns 55b are integrally formed at both ends of the arc-shaped rod 55a. The lifting columns 55b and the arc-shaped rod 55a can also be separate structures. Both lifting columns 55b are located in the lifting groove 13d. A rotating seat 56 is fixedly connected to the side wall of the mounting cylinder 8c in the mounting base 8. A clearance groove 50c is also provided on the limiting platform 50. The rotating seat 56 is located within the clearance groove 50c. A lifting rod 55 is rotatably mounted on the rotating seat 56. A moving rod 55c is located on the other side of the lifting rod 55. The driving source includes a third pull rod 57 and a third solenoid 58. The moving rod 55c is connected to the third pull rod 57, and the third pull rod 57 is connected to the third solenoid 58. When the firing pin 4 moves in the first direction, the moving rod 55c rotates under the drive of the third pull rod 57. A fixed plate 56a and a rotating plate 56b are provided on the rotating seat 56. The fixed plate 56a is fixed to the side wall of the mounting cylinder 8c. A rotating piece 55e is provided on the lifting rod 55. The rotating piece 55e and the rotating plate 56b are connected by a pin. The rotating plate 56b is located inside the mounting base 8 and above the rotating disk 12. A locking pin 59 is provided at one end of the third pull rod 57, and a through hole 55d is provided on the moving rod 55c. The third pull rod 57 passes through the through hole 55d, and the locking pin 59 drives the moving rod 55c to move.

[0163] A rotating disk 48 is connected below the rotating shaft 13, and a rotating disk 12 is located above the rotating disk 48. The rotating disk 48 is connected to the output part of the reduction mechanism 26. The reduction mechanism 26 is connected to the motor 27. When the motor 27 rotates, it drives the reduction mechanism 26 to rotate, thereby driving the rotating disk 48 to rotate. A third tooth 13a is provided on the rotating shaft 13, and a fourth tooth 48a is provided on the rotating disk 48. Both the third tooth 13a and the fourth tooth 48a are strip-shaped. In this embodiment, there are two third teeth 13a and six fourth teeth 48a, which facilitates the engagement of the rotating shaft and the rotating disk. There is a gap between adjacent fourth teeth 48a. When the rotating disk 48 and the rotating shaft 13 are engaged, that is, when the firing pin 4 moves in the second direction, the third tooth 13a is located within the gap and abuts against the fourth tooth 48a. When the firing pin 4 moves in the first direction, the third solenoid 58 operates, driving the third pull rod 57 to move. The locking pin 59 drives the moving rod 55c to move, and the rotating shaft 13 moves upward against the force of the elastic element 49, causing the third tooth 13a and the fourth tooth 48a to disengage. A rotating hole 8d is provided inside the mounting cylinder 8c of the mounting base 8, and the third tooth 13a and the fourth tooth 48a are located inside the rotating hole 8d.

[0164] As shown in Figure 34, the mounting cylinder 8c of the mounting base 8 is also provided with a second mounting groove 8f, and a fourth bearing 54 is provided on the second mounting groove 8f. The mounting base 8 is also fixedly connected with a limiting plate 51 that limits the fourth bearing 54 in the second mounting groove 8f. The rotating disk 48 is provided with a rotating rod 48b, and the fourth bearing 54 is sleeved on the rotating rod 48b. The rotating disk 48 is also provided with a retaining spring. The retaining spring and the limiting plate 51 cooperate to keep the fourth bearing 54 fixed in the axial direction of the rotating rod 48b.

[0165] As shown in Figures 32, 33, and 36, the rotating disk 12 has a plurality of mounting holes 12 arranged along the rotation direction. In this embodiment, the number of mounting holes 12 is nine, and the mounting holes 12 are arranged in a ring and continuously spaced on the rotating disk 12. A retaining pin 16 is provided in each mounting hole 12, and the retaining pins 16 are arranged in a ring and continuously spaced on the rotating disk 12. In order to prevent the retaining pins 16 from coming out of the mounting holes 12, this embodiment uses a baffle above the mounting holes 12. The retaining pins 16 can be prevented from coming out of the mounting holes 12 in the manner described in one embodiment, that is, a limiting piece is provided on the rotating disk 12, and the limiting piece is fixed on the rotating disk 12 by a clamp. The retaining pins 16 can rotate around the center of the mounting hole 12 but cannot move radially on the rotating disk 12. The striking pin 4 in this embodiment is basically the same as that in embodiment one, except that the number of protrusions 4a on the striking pin 4 in this embodiment corresponds to the number of locking pins 16, both being nine. During the lifting process of the striking pin 4, the locking pins 16 are located in the groove and abut against the corresponding protrusions 4a. The locking pins 16 can rotate along their center to reduce wear between the locking pins 16 and the protrusions 4a.

[0166] As shown in Figure 35, the firing pin 4 in this embodiment is basically the same as that in Embodiment 1. Multiple protrusions 4a are distributed on one side of the firing pin 4 to lift it. There is a gap between adjacent protrusions 4a, forming a groove. In this embodiment, there are nine protrusions 4a on the firing pin 4.

[0167] In this embodiment, the locking part 28 has a structure that is basically the same as that in the first embodiment. The difference is that in this embodiment, the second pull rod 30 is provided with a spring that makes the second pull rod 30 move away from the solenoid.

[0168] As shown in Figures 30 and 31, a first position sensor 35, a second position sensor 36, and a third position sensor 37 for detecting the position of the piston 5 are also provided on the cylinder 2. The power supply unit has a housing and multiple battery cells housed within the housing. The nail gun also includes a safety switch 47, a control switch 42, and a trigger switch 40. When the control switch 42 is pressed, the nail gun's control system 34 can start operating. Both the trigger switch 40 and the control switch 42 are located on the handle, which is not shown in the figures. The trigger switch 40 detects the presence or absence of operating force applied to the handle. The trigger switch 40 is connected to the control system 34 and outputs a signal corresponding to the detection result. The safety switch 47 is also connected to the control system 34. When the nail gun is in use, the safety switch 47 is pressed against an object, and after the trigger switch 40 is turned on, the nail gun performs nailing.

[0169] The working principle of the nail gun is as follows: As shown in Figure 36, when the nail gun is not turned on, the piston 5 is in the first position; as shown in Figure 37, when the nail gun control switch 42 is turned on, the motor 27 works. Due to the engagement of the rotating disk 48 and the rotating shaft 13, the rotating shaft 13 drives the rotating disk 12 to rotate. The locking pin 16 on the rotating disk 12 abuts against the protrusion 4a of the firing pin 4, lifting the firing pin 4. The piston 5 moves from the first position to the second position. At this time, the control system 34 controls the second solenoid 29 to work, so that the firing pin 4 is locked by the locking plate. When the nail gun is turned on, and both the safety switch 47 and the trigger switch 40 are on, the motor 27 drives the rotating disk 12 to rotate. When the piston 5 moves from the second position to the third position, the locking plate 31a on the locking plate 31 slides from the slot 4f across the release surface 4d1 to the farthest position from the nail gun 4. The positioning ball 31f is located on the positioning groove 10b, and the nail gun 4 is no longer locked by the locking plate 31. The third solenoid 58 is energized, and the third pull rod... 57 moves downward, the third lever 57 drives the lifting lever 55 to rotate, the rotating shaft 13 and the rotating disk 48 disengage, the piston 5 is subjected to high-pressure gas, which drives the firing pin 4 to move in the first direction to achieve nailing. Since the rotating shaft 13 and the rotating disk 48 are disengaged, the rotating disk 12 drives the rotating shaft 13 to rotate but does not drive the rotating disk 48 to rotate. After the nail in the nail gun is fired, the piston 5 moves to the first position, the third solenoid 58 is de-energized, and the rotating shaft 13 moves downward under the action of the third spring and disengages from the rotating disk 48. When engaged, motor 27 continues to rotate, driving rotating shaft 13 to rotate. Rotating shaft 13 drives rotating disk 12 to rotate. Rotating disk 12 drives impact pin 4 to move in the second direction. Piston 5 moves back to the second position. Second solenoid 29 is energized. Locking plate 31 moves in the direction of impact pin 4 to lock impact pin 4. When impact pin 4 is locked by locking plate 31, the second solenoid 29 is de-energized after impact pin 4 is locked. That is, the end face of the engaging plate abuts against the top surface of the top plate. The engaging plate part is still located in the slot, and the positioning ball is located in the positioning groove.

[0170] As shown in Figure 39, in addition to the above working method, an additional protrusion 4g is set at the front end of the firing pin 44, and a corresponding locking pin 16a is set on the rotating disk 12. When the nail gun is firing, when the piston 5 moves to the third position, the control system 34 controls the third solenoid 58 to stop working, the motor 27 continues to drive the rotating disk 12 to rotate, the locking pin 16a and the protrusion 4g continue to move, driving the firing pin 4 to continue to move in the second direction, and the locking plate 31 does not lock the firing pin 4; after the rotating disk 12 has rotated through a certain angle, the control system 34 controls the third solenoid 58 to work, the third solenoid 58 is energized, the third pull rod 57 moves downward, the third pull rod 57 drives the lifting rod 55 to rotate, the rotating disk 48 and the rotating shaft 13 disengage, the firing pin 4 moves in the first direction, the firing pin 4 drives the rotating disk 12 and the rotating shaft 13 to rotate together. With this nail firing method, the nail firing force is greater than the above working method.

[0171] When the firing pin 4 moves from the third position to the first direction, a nail jamming situation may occur. In this embodiment, the method to solve the nail jamming is as follows: During a nailing process, when the first position sensor 35 does not detect the piston 5, the third solenoid 58 is de-energized, the rotating shaft 13 moves downward under the action of the elastic element 49 and engages with the rotating disk 12, the motor 27 continues to rotate, the motor 27 continues to rotate and drives the rotating disk 48 to rotate, the rotating disk 48 drives the rotating shaft 13 to rotate, the rotating shaft 13 drives the rotating disk 12 to rotate, the rotating disk 12 drives the firing pin 4 to move to the second direction, the piston 5 moves back to the second position, the second solenoid 29 is energized, the locking plate 31 moves towards the firing pin 4 to lock the firing pin 4, when the firing pin 4 is locked by the locking plate 31, the second solenoid 29 is de-energized after the firing pin 4 is locked, at this time the jammed nail is removed, and the nail gun can resume normal operation.

Claims

1. A pneumatic nail gun, comprising an impact part (1) for driving fasteners inside the nail gun out of the nail gun along a first direction, the impact part (1) comprising a firing pin (4) having a plurality of protrusions (4a) continuously provided thereon, the firing pin (4) reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a lifting part (11) and a locking part (28) for keeping the firing pin (4) locked and preventing it from moving in the first direction, the lifting part (11) comprising a rotating disk (12) and a plurality of locking pins (16) or teeth provided on the rotating disk (12), characterized in that, The locking pins (16) or teeth are arranged in a ring and continuously spaced on the rotating disk (12). The locking pins (16) correspond to the protrusions (4a) and engage with the corresponding protrusions (4a) when the firing pin (4) moves. The rotating disk (12) is also connected to a rotating mechanism, which includes a rotating shaft (13). The rotating disk (12) is arranged on the rotating shaft (13). When the firing pin (4) moves in the second direction, the rotating shaft (13) drives the rotating disk (12) to rotate. When the firing pin (4) moves in the first direction, the rotating disk (12) and the rotating shaft (13) disengage.

2. The pneumatic nail gun according to claim 1, characterized in that, The rotating disk (12) is circumferentially mounted on the rotating shaft (13) and remains fixed in the axial direction of the rotating shaft (13).

3. A pneumatic nail gun according to claim 2, characterized in that, The rotating disk (12) is provided with a third ratchet (12i), and the rotating shaft (13) is connected with a pawl (60). When the firing pin (4) moves in the second direction, the pawl (60) engages with the third ratchet (12i). When the firing pin (4) moves in the first direction, the pawl (60) disengages from the third ratchet (12i).

4. A pneumatic nail gun according to claim 3, characterized in that, The rotating shaft (13) is provided with a connecting seat (61), and the pawl (60) is rotatably mounted on the connecting seat (61).

5. A pneumatic nail gun according to claim 4, characterized in that, The connecting seat (61) includes a connecting plate (61a) and a connecting shaft (61b). The pawl (60) is sleeved on the connecting shaft (61b). The connecting shaft (61b) is also provided with an elastic element four (62). One end of the elastic element four (62) is disposed on the connecting plate (61a), and the other end of the elastic element four (62) is disposed on the pawl (60).

6. A pneumatic nail gun according to claim 5, characterized in that, The lifting part (11) is connected to the mounting base (8). The mounting base (8) is provided with a separation column (63). The pawl (60) is provided with a separation plate (60a). When the firing pin (4) moves in the first direction, the separation plate (60a) abuts against the separation column (63). The separation plate (60a) rotates toward the center of the rotating disk (12). The pawl (60) rotates away from the center of the rotating disk (12) and disengages from the third ratchet (12i). When the firing pin (4) moves in the second direction, the separation plate (60a) separates from the separation column (63). The pawl (60) and the third ratchet (12i) mesh.

7. A pneumatic nail gun according to claim 6, characterized in that, A first bearing (18) is provided between the rotating disk (12) and the rotating shaft (13), and the first bearing (18) is located on the inner side of the rotating disk (12).

8. A pneumatic nail gun according to claim 7, characterized in that, The upper end of the first bearing (18) abuts against the inner end face of the rotating disk (12), and the rotating disk (12) is also provided with a limiting member (64) for limiting the first bearing (18) within the rotating disk (12).

9. A pneumatic nail gun according to claim 8, characterized in that, The connecting seat (61) is fixed to the rotating shaft (13) by threads.

10. A pneumatic nail gun according to claim 9, characterized in that, The upper end face of the third ratchet (12i) abuts against the back plate (13e) of the rotating shaft (13).

11. A pneumatic nail gun according to claim 10, characterized in that, The projection of the outer end face of the separation plate (60a) onto the horizontal plane is a straight line and an arc.

12. A pneumatic nail gun according to claim 11, characterized in that, A retaining ring (65) is provided below the first bearing (18), the retaining ring (65) being located between the first bearing (18) and the second bearing (13b) and abutting against the first bearing (18) and the second bearing (13b).

13. A pneumatic nail gun according to claim 12, characterized in that, The rotating disk (12) is provided with a limiting piece (17), which is located below the locking pin (16).

14. A pneumatic nail gun according to claim 13, characterized in that, The rotating disk (12) is provided with a mounting hole (12a), and the locking pin (16) is circumferentially rotatably disposed in the mounting hole (12a). The locking pin (16) is fixed in the radial direction of the rotating disk (12).

15. A pneumatic nail gun according to claim 2, characterized in that, The rotating mechanism includes a rotating disk (19) sleeved on a rotating shaft (13). The rotating disk (19) and the rotating shaft (13) are circumferentially fixed and the rotating disk (19) moves axially on the rotating shaft (13). When the firing pin (4) moves in the second direction, the rotating disk (19) engages with the rotating disk (12). When the firing pin (4) moves in the first direction, the rotating disk (12) and the rotating disk (19) disengage.

16. A pneumatic nail gun according to claim 15, characterized in that, The rotating disk (12) is provided with a first ratchet (12b), and the rotating disk (19) is provided with a second ratchet (19a). The first ratchet (12b) can engage with the second ratchet (19a). The rotating shaft (13) is fitted with a first bearing (18). The first bearing (18) and the rotating shaft (13) are axially fixed. The first bearing (18) is located between the rotating disk (12) and the rotating shaft (13) and is located inside the rotating disk (12).

17. A pneumatic nail gun according to claim 16, characterized in that... The first ratchet (12b) is provided with a plurality of first teeth (12c), and the second ratchet (19a) is provided with a plurality of second teeth (19b). There is a gap one (12f) between adjacent first teeth (12c), and there is a gap two (19d) between adjacent second teeth (19b). The width of the gap one (12f) is greater than the width of the second tooth (19b), and the width of the gap two (19d) is greater than the width of the first tooth (12c).

18. A pneumatic nail gun according to claim 17, characterized in that, The rotating disk (12) is provided with a retaining ring (12d), and the first bearing (18) is located above the retaining ring (12d). The rotating disk (12) is also provided with a snap-fit ​​member (12e), and the first bearing (18) is located between the retaining ring (12d) and the snap-fit ​​member (12e).

19. A pneumatic nail gun according to claim 18, characterized in that, The turntable (19) is located above the rotating disk (12).

20. A pneumatic nail gun according to claim 19, characterized in that, The first tooth (12c) and the second tooth (19b) are strip-shaped or angular.

21. A pneumatic nail gun according to claim 17 or 20, characterized in that, The rotating shaft (13) is provided with an elastic element (20) for combining the rotating disk (19) and the rotating disk (12). The elastic element (20) abuts against the rotating disk (19). The rotating disk (19) is also connected to a lifting mechanism for separating the rotating disk (19) from the rotating disk (12).

22. A pneumatic nail gun according to claim 21, characterized in that, The rotary table (19) is provided with a lifting groove (19c). The lifting mechanism includes a lifting rod (21) for cooperating with the lifting groove (19c) to lift the rotary table (19) and a drive source. The lifting rod (21) and the drive source are connected. One side of the lifting rod (21) is a straight rod (21a), which is located in the lifting groove (19c). Alternatively, one side of the lifting rod (21) is provided with an arc-shaped rod (21d), and both ends of the arc-shaped rod are provided with lifting columns (21e). The lifting columns (21e) are all located in the lifting groove (19c).

23. A pneumatic nail gun according to claim 22, characterized in that, The lifting part (11) is connected to the mounting base (8), and a rotating seat (24) is connected to the mounting base (8). The lifting rod (21) is rotatably mounted on the rotating seat (24). The other side of the lifting rod (21) is a moving rod (21b). The driving source includes a first pull rod (23) and a first solenoid (22). The moving rod (21b) is connected to the first pull rod (23). The first pull rod (23) is connected to the first solenoid (22). When the striking pin (4) moves in the first direction, the moving rod (21b) moves under the drive of the first pull rod (23).

24. A pneumatic nail gun according to claim 23, characterized in that, The rotating seat (24) is provided with a fixed plate (24a) and a rotating plate (24b). The fixed plate (24a) is fixed on the mounting base (8). The lifting rod (21) is provided with a rotating plate (21g). The rotating plate (21g) and the rotating plate (24b) are connected by a pin. The rotating plate (24b) is located inside the mounting base (8) and above the rotating disk (12).

25. A pneumatic nail gun according to claim 24, characterized in that, One end of the first pull rod (23) is provided with a locking post (23a), and the moving rod (21b) is provided with a through hole (21f). The first pull rod (23) passes through the through hole (21f), and the locking post (23a) drives the moving rod (21b) to move.

26. A pneumatic nail gun according to claim 25, characterized in that, The straight rod (21a) has a protrusion (21c) at one end located in the lifting groove (19c). The width of the lifting groove (19c) is greater than the thickness of the straight rod (21a). The moving rod (21b) and the straight rod (21a) or the arc rod (21d) are bent and transitioned.

27. A pneumatic nail gun, comprising an impact part (1) for driving fasteners inside the nail gun out of the nail gun along a first direction, the impact part (1) comprising a firing pin (4) reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a lifting part (11) for moving the firing pin (4) in the second direction and a locking part (28) for keeping the firing pin (4) locked and not moving in the first direction, the locking part (28) comprising a locking plate (31) engaging with the firing pin (4) to keep the firing pin (4) locked, characterized in that, The locking plate (31) is provided with a pressure relief plate (44), and a pressure relief rod (45) is connected to the pressure relief plate (44). The movement of the pressure relief rod (45) causes the pressure relief plate (44) to move, thereby disengaging the locking plate (31) from the firing pin (4).

28. A pneumatic nail gun according to claim 27, characterized in that, The pressure relief rod (45) is also connected to an elastic element two (46) for resetting the pressure relief rod (45).

29. A pneumatic nail gun according to claim 28, characterized in that, The locking plate (31) and the pressure relief plate (44) are integrally formed or are separate structures, and the pressure relief rod (45) abuts against the pressure relief plate (44).

30. A pneumatic nail gun according to claim 29, characterized in that, The pressure relief rod (45) is provided with a pressing block (45a), and the elastic element is sleeved on the pressure relief rod (45) and abuts against the pressing block (45a).

31. A pneumatic nail gun according to claim 30, characterized in that, There is no spring between the locking plate (31) and the nail gun body to move the locking plate (31) toward the firing pin (4). The locking part (28) also includes a traction part for moving the locking plate (31) and locking it with the firing pin (4). The firing pin (4) is provided with a top that cooperates with the locking plate (31) to lock the firing pin (4) and a push plate (4d) that cooperates with the locking plate (31) to unlock the firing pin (4). The push plate (4d) has an inclined release surface (4d1) on the side facing the second direction. The release surface (4d1) causes the locking plate (31) to move away from the firing pin (4) and keeps the locking plate (31) detached from the firing pin (4) during the movement of the firing pin (4) in the first direction.

32. A pneumatic nail gun according to claim 31, characterized in that, In the horizontal direction of the vertical striker (4), the distance L3 between the outermost edge of the push plate (4d) and the striker (4) is greater than the distance L4 between the outermost edge of the top plate (4e) and the striker (4).

33. A pneumatic nail gun according to claim 32, characterized in that, The abutting top is an abutting plate (4e), the abutting plate (4e) is provided with an abutting surface (4e1), and the striking pin (4) is also provided with a slot (4f), the slot (4f) being located between the abutting plate and the push plate.

34. A pneumatic nail gun according to claim 33, characterized in that, The locking plate (31) includes a snap-fit ​​plate (31a) and a sliding groove adapted to the shape of the push plate (4d). When the locking plate (31) locks the striker (4), the end face of the snap-fit ​​plate (31a) abuts against the abutting surface (4e1) of the abutting plate (4e), and the snap-fit ​​plate (31a) is partially located in the snap groove (4f).

35. A pneumatic nail gun according to claim 34, characterized in that, The traction unit includes a second solenoid (29) and a second pull rod (30) connected to the second solenoid (29). The second solenoid (29) is connected to the control system (34). The second solenoid (29) is fixed on the mounting base (8). The end of the second pull rod (30) away from the second solenoid (29) is rotatably connected to a traction plate (32). A traction rod (33) is connected to the traction plate (32). The traction rod (33) is rotatably mounted on the mounting base (8). The traction plate (32) is located on the mounting base (8). The locking plate (31) also includes a rotating hole (31b). The traction rod (33) is located in the rotating hole (31b). The traction rod (33) rotates with the locking plate (31).

36. A pneumatic nail gun according to claim 35, characterized in that, The lifting part (11) includes a rotating disk (12) with a rotating shaft (13), a locking pin (16) is provided on the rotating disk (12), and a protrusion (4a) is provided on the firing pin (4). The locking pin (16) corresponds to the protrusion (4a) and engages with the corresponding protrusion (4a) when the firing pin (4) moves.

37. A pneumatic nail gun, comprising an impact part (1) for driving fasteners inside the nail gun out of the nail gun along a first direction, the impact part (1) comprising a firing pin (4) having a plurality of protrusions (4a) continuously provided thereon, the firing pin (4) reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a lifting part (11) and a locking part (28) for keeping the firing pin (4) locked and preventing it from moving in the first direction, the lifting part (11) comprising a rotating disk (12) and a plurality of locking pins (16) or teeth provided on the rotating disk (12), characterized in that, The locking pins (16) or teeth are arranged in a ring and continuously spaced on the rotating disk (12). The locking pins (16) correspond to the protrusions (4a) and engage with the corresponding protrusions (4a) when the firing pin (4) moves. The rotating disk (12) is also connected to a rotating mechanism, which includes a rotating shaft (13) and a rotating disk (48) connected to the rotating shaft (13). The rotating disk (48) drives the rotating shaft (13) to rotate. The rotating disk (12) is arranged on the rotating shaft (13). When the firing pin (4) moves in the second direction, the rotating shaft (13) drives the rotating disk (12) to rotate. When the firing pin (4) moves in the first direction, the rotating shaft (13) moves relative to the rotating disk (12) and the rotating shaft (13) disengages from the rotating disk (48).

38. A pneumatic nail gun according to claim 37, characterized in that, The rotating disk (12) is fixed in the circumferential direction of the rotating shaft (13) and the rotating shaft (13) and the rotating disk (12) move relative to each other in the axial direction of the rotating shaft (13).

39. A pneumatic nail gun according to claim 38, characterized in that, The rotating shaft (13) is provided with a third tooth (13a), and the rotating disk (48) is provided with a fourth tooth (48a). When the striking pin (4) moves in the second direction, the third tooth (13a) and the fourth tooth (48a) engage. When the striking pin (4) moves in the first direction, the third tooth (13a) and the fourth tooth (48a) disengage.

40. A pneumatic nail gun according to claim 39, characterized in that, The lifting part (11) is connected to the mounting base (8), the rotating shaft (13) is vertically arranged in the mounting base (8), the rotating disk (48) is located below the rotating shaft (13), the rotating disk (12) is located above the rotating disk (48), the mounting base (8) is provided with a rotating hole (8d), and the third tooth (13a) and the fourth tooth (48a) are located in the rotating hole (8d).

41. A pneumatic nail gun according to claim 40, characterized in that, The rotating shaft (13) is connected to an elastic element three (49) that combines the rotating disk (48) and the rotating shaft (13). The rotating shaft (13) is provided with a stop groove (13b), and the elastic element three (49) abuts against the stop groove (13b).

42. A pneumatic nail gun according to claim 41, characterized in that, The mounting base (8) is provided with a limiting platform (50), the limiting platform (50) is provided with a limiting groove (50a) and a limiting hole (50b), the upper end of the rotating disk (12) is provided with a rotating shaft (12g), the rotating shaft (12g) is connected with a second bearing (52), the second bearing (52) is located in the limiting groove (50a), the rotating shaft (13) is provided with a rotating plate (13c), the rotating plate (13c) is located in the limiting hole (50b), and the rotating plate (13c) is higher than the rotating disk (12).

43. A pneumatic nail gun according to claim 42, characterized in that, The rotating disk (12) is provided with a second rotating shaft (12h) below it, and a third bearing (53) is connected to the second rotating shaft (12h). The mounting base (8) is provided with a mounting groove (8e), and the third bearing (53) is located in the mounting groove (8e).

44. A pneumatic nail gun according to claim 43, characterized in that, The mounting base (8) is provided with a second mounting groove (8f), and a fourth bearing (54) is provided on the second mounting groove (8f). A limiting plate (51) is also fixedly connected to the mounting base (8) to limit the fourth bearing (54) in the second mounting groove (8f). A rotating rod (48b) is provided on the rotating disk (48), and the fourth bearing (54) is sleeved on the rotating rod (48b).

45. A pneumatic nail gun according to claim 44, characterized in that, The rotating shaft (13) is provided with a lifting groove (13d), and a lifting mechanism is connected to the lifting groove (13d) for separating the rotating disk (48) and the rotating shaft (13).

46. ​​A pneumatic nail gun according to claim 45, characterized in that, The lifting mechanism includes a lifting rod (55) for cooperating with the lifting groove (13d) to lift the rotating shaft (13) and a drive source. The lifting rod (55) and the drive source are connected. One side of the lifting rod (55) is a straight rod, which is located in the lifting groove (13d). Alternatively, one side of the lifting rod (55) is provided with an arc-shaped rod (55a), and both ends of the arc-shaped rod (55a) are provided with lifting columns (55b), which are all located in the lifting groove (13d).

47. A pneumatic nail gun according to claim 46, characterized in that, The mounting base (8) is connected to a rotating seat (56), and the lifting rod (55) is rotatably mounted on the rotating seat (56). The other side of the lifting rod (55) is a moving rod (55c). The driving source includes a third pull rod (57) and a third solenoid (58). The moving rod (55c) is connected to the third pull rod (57), and the third pull rod (57) is connected to the third solenoid (58). When the firing pin (4) moves in the first direction, the moving rod (55c) rotates under the drive of the third pull rod (57).

48. A pneumatic nail gun according to claim 47, characterized in that, The rotating seat (56) is provided with a fixing plate (56a) and a rotating plate (56b). The fixing plate (56a) is fixed on the mounting base (8). The lifting rod (55) is provided with a rotating piece (55e). The rotating piece (55e) and the rotating plate (56b) are connected by a pin. The rotating plate (56b) is located inside the mounting base (8) and above the rotating disk (12).

49. A pneumatic nail gun according to claim 48, characterized in that, The third pull rod (57) has a locking post (59) at one end, and the moving rod (55c) has a through hole (55d). The third pull rod (57) passes through the through hole (55d), and the locking post (59) drives the moving rod (55c) to move.

50. A pneumatic nail gun according to claim 49, characterized in that, The rotating disk (12) is provided with a mounting hole (12a), and the locking pin (16) is circumferentially rotatably disposed in the mounting hole (12a). The locking pin (16) is fixed in the radial direction of the rotating disk (12).

51. A pneumatic nail gun according to claim 50, characterized in that, The rotating mechanism also includes a motor (27) and a reduction mechanism (26) connected to the motor (27), and the rotating disk (48) is connected to the output of the reduction mechanism (26).

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