Pneumatic nailing gun

Abstract

A pneumatic nailing gun, comprising a striker (9), wherein the striker reciprocates in a first direction and a second direction. The nailing gun further comprises a rotating disk (1) configured to cause the striker to move in the second direction, wherein a rotating shaft I (1a) is provided on the rotating disk, a rotating seat (2) is provided below the rotating disk, and a mounting groove (2a) is provided in the rotating seat; and the rotating shaft I is rotatably arranged in the mounting groove, the rotating seat is connected to the rotating disk by means of a clutch assembly, and the clutch assembly is located below the rotating disk. When the striker of the pneumatic nailing gun moves in the second direction, the rotating shaft I and the rotating seat remain stationary relative to each other, and the rotating seat drives the rotating disk to rotate stably together. When the striker moves in the first direction, the rotating shaft I and the rotating seat rotate relative to each other, and the rotating disk and the rotating seat do not experience relative vertical runout, such that the clutch assembly maintains stable operation during a nailing process of the nailing gun.

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 part, lifting part, locking part, nail magazine, nail ejection part, power supply part, control system, motor and reduction mechanism, etc.

[0003] A nail gun in the prior art includes a cylinder connected to a housing for storing gas; a firing assembly for firing nails and at least partially disposed within the cylinder; and a power output unit including a motor for outputting power; and a clutch assembly for switching the initial position and release position of the firing assembly. When the firing assembly moves from the initial position to the release position, the clutch assembly transmits the power from the motor to the firing assembly. During the transmission of power from the motor to the firing assembly, the protrusion in the clutch assembly constantly slides on the annular surface of the clutch retainer. Wear may occur between the protrusion and the annular surface. Furthermore, during the sliding of the protrusion on the annular surface, the clutch element is constantly pressed against the clutch retainer under the action of the elastic element, which greatly increases the probability of wear on the protrusion and the annular surface. Furthermore, during the process of the nail gun moving from the release position to the initial position, the protrusion of the first clutch part falls from the annular surface into the first position of the notch. During this process, the protrusion jumps in the vertical direction, causing a large impact on the clutch assembly and the rotating shaft, resulting in poor stability of the nail gun during nailing. Technical issues

[0004] 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 improve the stability of the nail gun during nailing. Technical solutions

[0005] The objective of this invention can be achieved through the following technical solution: a pneumatic nail gun, comprising a firing pin for ejecting fasteners from the nail gun along a first direction, the firing pin reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a rotating disk for moving the firing pin in the second direction, characterized in that the rotating disk is provided with a rotating shaft, a rotating seat is provided below the rotating disk, the rotating seat is provided with a mounting groove, the rotating shaft is rotatably disposed in the mounting groove, the rotating seat and the rotating disk are connected by a clutch assembly, the clutch assembly is located below the rotating disk, when the firing pin moves in the second direction, the rotating disk and the rotating seat engage, the rotating seat drives the rotating disk to rotate, when the firing pin moves in the first direction, the rotating disk and the rotating seat disengage.

[0006] In this pneumatic nail gun, a mounting groove is provided on the rotating base, and a rotating shaft is provided on the rotating disk. The rotating shaft is placed in the mounting groove, and the clutch assembly is installed below the rotating disk. When the firing pin moves in the second direction, the rotating shaft and the rotating base remain relatively stationary, and the rotating base drives the rotating disk to rotate smoothly together. When the firing pin moves in the first direction, the rotating shaft and the rotating base rotate relative to each other. The rotating disk and the rotating base do not jump relative to each other in the vertical direction, so that the clutch assembly of the nail gun maintains stable operation during the nailing process.

[0007] In the aforementioned pneumatic nail gun, the rotating base is provided with a mounting groove, and a bearing is installed within the mounting groove. The rotating shaft is rotatably mounted within the bearing. The bearing in the mounting groove reduces wear on the rotating shaft within the rotating base and makes the rotation of the rotating disk more stable when the rotating disk and the rotating base rotate relative to each other.

[0008] In the aforementioned pneumatic nail gun, the rotating shaft is located below the rotating base and is housed within bearing three. The rotating shaft passes through bearing three and connects to a rotating mechanism located below bearing three. The rotating mechanism drives the rotating shaft to rotate together, and the placement of the rotating shaft within bearing three makes the rotation of the rotating base more stable.

[0009] In the aforementioned pneumatic nail gun, the clutch assembly includes a ratchet mounted on a rotating disk and a clutch element rotatably connected to a rotating base. The ratchet is located above the rotating shaft, and the clutch element includes a pawl. When the firing pin moves in a second direction, the pawl engages with the ratchet; when the firing pin moves in a first direction, the pawl disengages from the ratchet. The ratchet and pawl only move relative to each other when the firing pin begins to move in the first direction and when it begins to move in the second direction. Compared to existing technologies, the protrusion slides relative to the annular surface throughout the firing pin's movement in the second direction, resulting in less wear between the ratchet and pawl and increasing the service life of the clutch assembly.

[0010] In the aforementioned pneumatic nail gun, the rotating base extends laterally to form a rotating platform, on which a mounting post is provided. The clutch component also includes a insertion hole, through which it is rotatably fitted onto the mounting post. The clutch assembly further includes a separation post and a separation plate. The outer end face of the separation plate is arc-shaped. When the firing pin moves in a first direction, the separation plate abuts against the separation post and rotates towards the center of the rotating disk. The pawl rotates away from the center of the rotating disk and disengages from the ratchet. When the firing pin moves in a second direction, the separation plate separates from the separation post, and the pawl engages with the ratchet. The separation and engagement of the ratchet and pawl are achieved through the rotation of the separation plate. The separation plate only abuts against the separation post when the firing pin needs to move in the first direction. Because the firing pin's movement in the first direction is short, the contact time between the separation plate and the separation post is short, resulting in less wear between them.

[0011] In the aforementioned pneumatic nail gun, the separating plate and pawl are located on either side of the insertion hole. The length of the separating plate is greater than the length of the pawl, and the outer end of the separating plate is located outside the rotating disk. The projections of the separating post and the rotating disk on the horizontal plane overlap. When the separating plate abuts against the separating post, it rotates around the mounting post. The greater length of the separating plate than the pawl makes it easier for the pawl and ratchet to separate. The outer end of the separating plate being located outside the rotating disk and the overlapping projections of the separating post and the rotating disk on the horizontal plane further facilitate the abutment of the separating plate against the separating post, making it easier for the pawl and ratchet to separate.

[0012] In the aforementioned pneumatic nail gun, a mounting shaft is located below the mounting post, and the diameter of the mounting shaft is larger than that of the mounting post. An elastic element is also provided on the mounting post. A reset hole is provided on the rotating platform. One end of the elastic element is disposed within the reset hole, and the other end abuts against the inner side of the separating plate. The nail gun also includes a guide plate, on which a connecting post is provided. The separating plate is disposed on the connecting post. The diameter of the mounting shaft is larger than that of the mounting post, allowing the separating element to abut against the upper end face of the mounting shaft, resulting in more stable rotation of the separating element. The elastic element is used for the reset of the pawl; placing the elastic element within the reset hole enhances its reset function.

[0013] In the aforementioned pneumatic nail gun, the firing pin has a series of protrusions, and the rotating disk has corresponding locking pins. The rotating disk has two rotating plates arranged opposite each other, and each rotating plate has mounting holes. The locking pins are circumferentially rotatable within these mounting holes and remain fixed radially on the rotating disk. This circumferential rotatable locking pin configuration within the mounting holes reduces wear on the locking pins and protrusions during firing pin movement.

[0014] In the aforementioned pneumatic nail gun, the locking pin is further equipped with a limiting plate. The limiting plate extends beyond the upper surface of the rotating disk and abuts against the top of the rotating disk. A limiting ring is also provided above the limiting plate. The rotating disk is further equipped with a limiting groove, within which a limiting element is installed. This limiting element abuts against the limiting ring. The limiting plate facilitates the installation of the locking pin onto the rotating disk, and the limiting element and the limiting ring work together to prevent the locking pin from dislodging from the rotating disk.

[0015] In the aforementioned pneumatic nail gun, the nail gun further includes a mounting base, on which is a mounting cylinder. The mounting cylinder contains a mounting cavity, and the third bearing is located within this cavity. The rotating disk also has a second rotating shaft, which is positioned above a limiting groove and rotatably mounted within the second bearing. A cover plate is fixedly connected to the mounting cylinder, and the cover plate contains a receiving cavity, within which the second bearing is located. The first, second, and third bearings are arranged coaxially. The cover plate is fixed to the mounting cylinder. By mounting the second bearing on the cover plate and the third bearing on the mounting cylinder, the rotating disk and rotating base are confined within the mounting cylinder, preventing vertical movement of the rotating disk and rotating base, thus ensuring stable operation of the nail gun during nailing. Beneficial effects

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. In this solution, by setting the second rotating shaft of the rotating disk on the cover plate, setting the mounting groove on the rotating seat, setting the first rotating shaft on the rotating disk, setting the first rotating shaft in the mounting groove, installing the clutch assembly on the lower side of the rotating disk, and setting the rotating shaft on the rotating seat on the rotating mechanism, when the firing pin moves in the second direction, the first rotating shaft and the rotating seat remain relatively stationary. When the firing pin moves in the first direction, the first rotating shaft and the rotating seat rotate relative to each other. The rotating disk and the rotating seat do not need to jump relative to each other in the vertical direction, so that the clutch assembly of the nail gun maintains stable operation during the nailing process.

[0018] 2. In this solution, the ratchet and pawl only move relative to each other when the firing pin starts to move in the first direction and when the firing pin starts to move in the second direction. Compared with the prior art, the protrusion always slides relative to the annular surface during the firing pin's movement in the second direction, resulting in less wear between the ratchet and pawl and increasing the service life of the clutch assembly.

[0019] 3. In this design, the length of the separation plate is greater than the length of the pawl, making it easier for the pawl and ratchet to separate. Attached Figure Description

[0020] Figure 1 is a three-dimensional structural diagram of the pneumatic nail gun in this invention;

[0021] Figure 2 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0022] Figure 3 is an exploded structural diagram of the pneumatic nail gun rotary disk, rotating seat and rotating mechanism in this invention;

[0023] Figure 4 is an exploded structural diagram of the pneumatic nail gun rotary disk, rotating seat and rotating mechanism in this invention;

[0024] Figure 5 is an exploded structural diagram of the rotary disk and rotating seat of the pneumatic nail gun in this invention.

[0025] Figure 6 is a three-dimensional structural schematic diagram of the firing pin of the pneumatic nail gun in this invention;

[0026] Figure 7 is a three-dimensional structural diagram of the pneumatic nail gun mounting base in this invention;

[0027] Figure 8 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0028] Figure 9 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0029] Figure 10 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0030] Figure 11 is a cross-sectional structural diagram of the pneumatic nail gun in this invention;

[0031] Figure 12 is a cross-sectional structural diagram of the pneumatic nail gun in this invention.

[0032] In the diagram, 1. Rotary disk; 1a. Rotary shaft one; 1b. Rotary shaft two; 1c. Ratchet; 1d. Mounting hole; 1e. Rotary plate; 1f. Limiting groove; 2. Rotating seat; 2a. Mounting groove; 2b. Rotary shaft; 2c. Rotating table; 2d. Mounting column; 2e. Reset hole; 3. Bearing 1; 4. Bearing 2; 5. Bearing 3; 6. Clutch; 6a. Pawl; 6b. Separating plate; 6c. Insertion hole; 7. Separating post; 8. Elastic element; 9. Impact pin; 9a. Protrusion; 9b. Groove; 10. Locking pin; 10a. Limiting plate; 11. Guide plate; 11a. Connecting post; 12. Limiting ring; 13. Limiting element; 14. Mounting seat; 14a. Mounting cylinder; 14b. Mounting cavity; 14c. Mounting plate; 14d. Vent hole; 15. Cover plate; 15a. Receiving cavity; 16. Nail ejection part; 17. Nail box; 18. Cylinder; 19. Cylinder end cover; 20. Piston; 21. Air chamber; 22. Buffer seat; 23. Rotating mechanism; 24. Motor; 25. Reduction mechanism; 26. Connecting seat; 26a. Connecting hole. Embodiments of the present invention

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments. Example

[0034] As shown in Figures 1, 2 and 3, a pneumatic nail gun is mainly designed to drive nails into objects that need to be fastened, such as furniture.

[0035] The nail gun includes a nail ejection section 16 located at the front end of the nail gun, and a nail magazine 17 located below the nail ejection section 16. The nail magazine 17 contains nails and has a nail pusher mechanism that pushes the nails into the nail ejection section 16. After the nails in the nail ejection section 16 are ejected by the firing pin 9, the nails in the nail magazine 17 will replenish the nail ejection section 16.

[0036] As shown in Figure 2, the nail gun includes a cylinder 18, which is a hollow cylindrical shape. The cylinder 18 includes an inner cylinder wall, and a cylinder end cap 19 is provided at one end of the cylinder 18 to seal one end of the cylinder 18. Under the action of the cylinder end cap 19 and the piston 20, a gas chamber 21 for storing compressed gas is formed inside the cylinder 18.

[0037] A movable piston 20, cylindrical in shape, is mounted on the inner wall of cylinder 18. Piston 20 reciprocates within cylinder 18 along a straight line A, an imaginary line representing the centerline of cylinder 18. The piston 20 contacts the inner wall of cylinder 18, forming a sealing surface that prevents leakage of compressed gas from the air chamber 21. A magnet is installed inside piston 20, detectable by a position sensor, used by the control system to determine the piston 20's position within cylinder 18.

[0038] As shown in Figures 2 and 8, a firing pin 9 is connected to the piston 20 to push the nail. The firing pin 9 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 9 moves in the first direction F1, the nail gun performs the function of driving the nail, i.e., striking the nail out of the nail section 16. When the firing pin 9 moves in the second direction F2, the firing pin 9 returns to its original position, the gas in the gas chamber 21 is compressed, and the piston 20 is subjected to high-pressure gas. The firing pin 9 is elongated, with one end fixed to the piston 20 and the other end used to strike the nail. Multiple protrusions 9a are distributed on one side of the firing pin 9 for lifting the firing pin 9. There is a gap between two adjacent protrusions 9a, forming a groove 9b.

[0039] As shown in Figures 2 and 8, the other end of the cylinder 18 is fixed to the mounting base 14. The mounting base 14 has an exhaust hole 14d through which the firing pin 9 can pass. A buffer seat 22 is also provided on the mounting base 14, and the buffer seat 22 is located between the mounting base 14 and the cylinder 18.

[0040] As shown in Figure 4, a mounting plate 14c is provided at the front end of the mounting base 14. A nail ejector 16 is located below the mounting plate 14c. The nail ejector 16 includes a guide plate 11 fixed below the mounting plate 14c and a nail plate located below the guide plate 11. A nail box 17 is fixed to the nail plate. In the mounting base 14, a mounting cylinder 14a is also provided on the side of the mounting plate 14c. The mounting cylinder 14a contains a rotating disk 1 that drives the firing pin 9 to move in the second direction.

[0041] As shown in Figures 1, 2, and 4, the rotating mechanism 23 includes a motor 24 and a rotating mechanism connected to the motor 24. The output shaft of the motor 24 rotates in one direction when the motor 24 is energized. A reduction mechanism 25 is connected to the rotating seat 2. Specifically, a connecting seat 26 is fixed on the reduction mechanism 25. The connecting seat 26 has a racetrack-shaped connecting hole 26a. A rotating shaft 2b is located below the rotating seat 2. The lower end of the rotating shaft 2b matches the shape of the connecting hole 26a, and the rotating shaft 2b is inserted into the connecting hole 26a. A mounting groove 2a is also provided inside the rotating seat 2, and a bearing 3 is installed in the mounting groove 2a. A power supply unit (not shown in this embodiment) is also provided in the nail gun. The power supply unit is used to provide power to the motor 24 and the control system.

[0042] As shown in Figures 2, 3, 4, and 5, two bearings, bearing 4 and bearing 5, are installed vertically in the mounting cylinder 14a. The lower bearing 5 is installed in the mounting cavity 14b of the mounting cylinder 14a, which limits the movement of bearing 5. The rotating shaft 2b passes through bearing 5 and connects to the connecting seat 26. A cover plate 15 is fixedly connected to the mounting cylinder 14a, and a receiving cavity 15a is provided inside the cover plate 15. The upper bearing 4 is located in the receiving cavity 15a of the cover plate 15. A rotating disk 1 is installed inside the mounting cylinder 14a. A rotating shaft 1, bearing 2, and bearing 1a are respectively provided at the upper and lower ends of the rotating disk 1. The lower rotating shaft 1a is installed in bearing 3 in the mounting groove 2a. The rotating shafts 1a, 2b, and 2b rotate around axis B. The diameter of rotating shaft 2b is larger than the diameter of rotating shaft 1a, making the rotation of the rotating disk 1 more stable.

[0043] As shown in Figure 3 in conjunction with Figures 4 and 5, the rotating disk 1 has two rotating plates 1e, which are arranged opposite each other. Multiple mounting holes 1d are arranged annularly and at intervals along the rotation direction on the rotating plate 1e. Each mounting hole 1d contains a locking pin 10, also annularly and at intervals. The locking pin 10 is cylindrical and can rotate around its center within the mounting hole 1d, but cannot move radially on the rotating disk 1. During the lifting of the firing pin 9, the locking pin 10 is located within the groove 9b and abuts against the corresponding protrusion 9a. The locking pin 10 can rotate around its center, thus reducing wear between the locking pin 10 and the protrusion 9a. A limiting plate 10a is also provided on the locking pin 10. The limiting plate 10a abuts against the top of the rotating disk 1. A limiting ring 12 is also provided above the limiting plate 10a. The rotating disk 1 is also provided with a limiting groove 1f. A limiting member 13 is provided in the limiting groove 1f. The limiting member 13 abuts against the top of the limiting ring 12. In this embodiment, the limiting member 13 is a clamp.

[0044] As shown in Figure 9, from a top view, in this embodiment, the motor 24 drives the rotating disk 1 to rotate counterclockwise, causing the striking pin 9 to move in the second direction F2.

[0045] As shown in Figures 3, 4, and 5, the clutch assembly includes a ratchet 1c mounted on a rotating disk 1 and a clutch element 6 mounted on a rotating seat 2. The ratchet 1c has a ring of evenly distributed teeth and is located above the rotating shaft 1a. The rotating seat 2 extends laterally to provide a rotating platform 2c, on which a mounting post 2d is provided. The clutch element 6 includes a insertion hole 6c, through which it is rotatably fitted onto the mounting post 2d. The clutch element 6 also includes a pawl 6a and a separation plate 6b, located on either side of the insertion hole 6c. When the nail gun is in use, the pawl 6a engages or disengages from the ratchet 1c.

[0046] The mounting post 2d is also provided with an elastic element 8. In this embodiment, the elastic element 8 is a torsion spring. The rotating table 2c is provided with a reset hole 2e. One end of the elastic element 8 is disposed in the reset hole 2e, and the other end of the elastic element 8 abuts against the inner side of the separating plate 6b. When the pawl 6a and the ratchet 1c separate, the torsion spring undergoes elastic deformation, causing the pawl 6a to be subjected to a force moving towards the ratchet 1c. The clutch assembly also includes a cylindrical separating post 7, which is disposed on the connecting post 11a of the guide plate 11. The projection of the outer end face of the separating plate 6b on the horizontal plane is a straight line and an arc. As shown in Figure 9, when the firing pin 9 moves in the second direction, the pawl 6a engages with the ratchet 1c, and the separating plate 6b and the separating post 7 do not contact each other. As shown in Figure 11, when the firing pin 9 moves in the first direction, the arc-shaped end face on the separating plate 6b contacts the separating post 7, the pawl 6a rotates around the connecting shaft, and the pawl 6a disengages from the ratchet 1c.

[0047] The firing pin 9 moves with the piston 20, which has two positions within the cylinder 18.

[0048] As shown in Figure 8 and Figure 12, the piston 20 is at the top dead center in the cylinder 18. When the piston 20 is at the top dead center, the projection of the outer end face of the separating plate 6b on the horizontal plane is an arc that abuts against the separating column 7. The separating plate 6b drives the ratchet 1c to rotate, so that the ratchet 1c and the pawl 6a are separated. The rotating seat 2 and the rotating disk 1 no longer interact. The piston 20 is subjected to the high pressure gas in the air chamber 21, which drives the firing pin 9 to move in the first direction. The firing pin 9 drives the rotating disk 1 to rotate, and the firing pin 9 realizes nailing. As shown in Figures 9 and 10, after the firing pin 9 stops moving in the first direction, the piston 20 is at the bottom dead center of the cylinder 18. When the piston 20 is at the bottom dead center, the position sensor detects that the firing pin has completed nailing. The control system controls the motor 24 to continue rotating. The motor 24 drives the rotating seat 2 to rotate through the reduction mechanism 25. The clutch 6 on the rotating seat 2 rotates with the rotating seat 2. At this time, the separating plate 6b and the separating column 7 separate. The pawl 6a rotates under the action of the elastic element 8 and engages with the teeth on the ratchet 1c. When the nail gun is working normally, the engagement position of the pawl 6a and the teeth on the ratchet 1c corresponds to the engagement position of the locking pin 10 on the rotating disk 1 and the protrusion 9a on the firing pin 9. That is, the pawl 6a is initially engaged with the teeth 1c1. After the nail gun nails once, the pawl 6a will engage with the teeth 1c1 on the ratchet 1c again. As shown in Figure 11, before the piston reaches top dead center, the separator plate 6b and the separator post 7 are opposite each other, and the pawl 6a and the ratchet 1c are still engaged.

[0049] The working principle of the nail gun is as follows: When the nail gun needs to drive a nail, the piston 20 moves from the lower dead center to the upper dead center. When the piston 20 moves to the upper dead center, the projection of the outer end face of the separating plate 6b on the horizontal plane is an arc part that contacts the separating column 7. The separating plate 6b rotates toward the center of the rotating disk 1, the pawl 6a rotates away from the center of the rotating disk 1 and disengages from the ratchet 1c, the rotating disk 1 disengages from the rotating seat 2, the elastic element 8 is in a compressed state, the piston 20 moves from the upper dead center to the first direction under the action of the high pressure gas in the air chamber 21, and the front end of the firing pin 9 strikes the nail to achieve nailing. During this process, the firing pin 9 drives the rotating disk 1 to rotate together through the protrusion 9a and the locking pin 10, but does not drive the rotating seat and the reduction mechanism 25 to rotate, as shown in Figure 8. From the top view, the firing pin 9 drives the rotating disk 1 to rotate in the clockwise direction. After nailing is completed, piston 20 moves from top dead center to bottom dead center. When piston 20 reaches bottom dead center, separation plate 6b disengages from separation post 7, and pawl 6a moves towards the center of rotating disk 1 under the action of elastic element 8, re-engaging with ratchet 1c. Since the locking pin 10 on rotating disk 1 and the protrusion 9a on firing pin 9 correspond, in order to enable the nail gun to nail repeatedly, when piston 20 moves back to bottom dead center, the tooth 1c1 on ratchet 1c engaged with pawl 6a is the same tooth 1c1 on ratchet 1c that piston 20 engaged with pawl 6a at the previous bottom dead center. When nailing needs to continue, motor 24 continues to rotate, driving rotating seat 2 to rotate via reduction mechanism 25. Rotating seat 2 drives rotating disk 1 to rotate together, and rotating disk 1 drives firing pin 9 to move in the second direction until piston reaches top dead center, at which point firing pin moves in the first direction to achieve nailing.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0051] Although this document frequently uses terms such as 1. rotating disk; 1a. rotating shaft one; 1b. rotating shaft two; 1c. ratchet; 1d. mounting hole; 1e. rotating plate; 1f. limiting groove; 2. rotating seat; 2a. mounting groove; 2b. rotating shaft; 2c. rotating table; 2d. mounting post; 2e. reset hole; 3. bearing one; 4. bearing two; 5. bearing three; 6. clutch; 6a. pawl; 6b. separating plate; 6c. insertion hole, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A pneumatic nail gun, comprising a firing pin (9) for firing fasteners inside the nail gun along a first direction, the firing pin (9) reciprocating in the first direction and a second direction opposite to the first direction, the nail gun further comprising a rotating disk (1) for moving the firing pin (9) in the second direction, characterized in that, The rotating disk (1) is provided with a rotating shaft (1a), and a rotating seat (2) is provided below the rotating disk (1). The rotating seat (2) is provided with a mounting groove (2a). The rotating shaft (1a) is rotatably disposed in the mounting groove (2a). The rotating seat (2) and the rotating disk (1) are connected by a clutch assembly. The clutch assembly is located below the rotating disk (1). When the striker (9) moves in the second direction, the rotating disk (1) and the rotating seat (2) are combined. The rotating seat (2) drives the rotating disk (1) to rotate. When the striker (9) moves in the first direction, the rotating disk (1) and the rotating seat (2) are disengaged.

2. The pneumatic nail gun according to claim 1, characterized in that, The mounting groove (2a) is provided with a bearing (3), and the rotating shaft (1a) is rotatably disposed in the bearing (3).

3. A pneumatic nail gun according to claim 2, characterized in that, The rotating seat (2) is also provided with a rotating shaft (2b), which is located below the rotating seat (2) and is set inside the bearing three (5). The rotating shaft (2b) passes through the bearing three (5) and is connected to the rotating mechanism (23) below the bearing three (5).

4. A pneumatic nail gun according to claim 2 or 3, characterized in that, The clutch assembly includes a ratchet (1c) disposed on a rotating disk (1) and a clutch component (6) rotatably connected to a rotating seat (2). The ratchet (1c) is located above the rotating shaft (1a). The clutch component (6) includes a pawl (6a). When the firing pin (9) moves in the second direction, the pawl (6a) engages with the ratchet (1c). When the firing pin (9) moves in the first direction, the pawl (6a) disengages from the ratchet (1c).

5. A pneumatic nail gun according to claim 4, characterized in that, The rotating seat (2) extends to the side and is provided with a rotating platform (2c). The rotating platform (2c) is provided with a mounting post (2d). The clutch (6) also includes a plug hole (6c). The clutch (6) is rotatably sleeved on the mounting post (2d) through the plug hole (6c). The clutch assembly also includes a separation post (7) located below the rotating disk (1). The clutch (6) also includes a separation plate (6b). The outer end face of the separation plate (6b) is arc-shaped. When the striker (9) moves in the first direction, the separation plate (6b) abuts against the separation post (7). The separation plate (6b) rotates toward the center of the rotating disk (1). The pawl (6a) rotates away from the center of the rotating disk (1) and disengages from the ratchet (1c). When the striker (9) moves in the second direction, the separation plate (6b) separates from the separation post (7). The pawl (6a) and the ratchet (1c) are engaged.

6. A pneumatic nail gun according to claim 5, characterized in that, The separation plate (6b) and the pawl (6a) are located on both sides of the insertion hole (6c). The length of the separation plate (6b) is greater than the length of the pawl (6a). The outer end of the separation plate (6b) is located outside the rotating disk (1). The projections of the separation column (7) and the rotating disk (1) on the horizontal plane overlap. 7.

7. A pneumatic nail gun according to claim 6, characterized in that, The mounting post (2d) is provided with a mounting shaft (2f) below it. The diameter of the mounting shaft (2f) is larger than that of the mounting post (2d). The mounting post (2d) is also provided with an elastic element (8). The rotating table (2c) is provided with a reset hole (2e). One end of the elastic element (8) is located in the reset hole (2e). The other end of the elastic element (8) abuts against the inner side of the separation plate (6b). The nail gun also includes a guide plate (11). The guide plate (11) is provided with a connecting post (11a). The separation plate (6b) is located on the connecting post (11a). 8.

8. A pneumatic nail gun according to claim 7, characterized in that, The firing pin (9) is provided with a number of protrusions (9a) continuously. The rotating disk (1) is provided with a locking pin (10) corresponding to the protrusions (9a). The rotating disk (1) is provided with two rotating plates (1e). The rotating plates (1e) are arranged opposite to each other. The rotating plates (1e) are provided with mounting holes (1d). The locking pin (10) is circumferentially rotatably arranged in the mounting hole (1d). The locking pin (10) is fixed in the radial direction of the rotating disk (1).

9. A pneumatic nail gun according to claim 8, characterized in that, The locking pin (10) is also provided with a limiting plate (10a), which extends beyond the upper surface of the rotating disk (1) and abuts against the top of the rotating disk (1). A limiting ring (12) is also provided above the limiting plate (10a). A limiting groove (1f) is also provided on the rotating disk (1). A limiting member (13) is provided in the limiting groove (1f), and the limiting member (13) abuts against the limiting ring (12).

10. A pneumatic nail gun according to claim 9, characterized in that, The nail gun also includes a mounting base (14), on which a mounting cylinder (14a) is provided. The mounting cylinder (14a) has a mounting cavity (14b) inside. The bearing three (5) is located in the mounting cavity (14b). The rotating disk (1) also has a rotating shaft two (1b) above the limiting groove (1f). The rotating shaft two (1b) is rotatably disposed in the bearing two (4). The mounting cylinder (14a) is also fixedly connected to a cover plate (15), which has a receiving cavity (15a) inside. The bearing two (4) is located in the receiving cavity (15a). The bearing one (3), bearing two (4), and bearing three (5) are arranged coaxially.

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