A method of firing an axial nailer

Abstract

The application discloses a kind of axial nail gun's firing method, comprising:A: press main sleeve forward movement, make brake pin by main sleeve upper reset side one end's locking terminal point rearwards movement of unlocking starting point to carry out compression energy storage;B: make brake pin by unlocking starting point to unlocking side other end's firing point movement, complete compression energy storage and release the locking of hammer;C: under the action of firing spring, hammer drives firing pin to move forward, while brake pin from firing point to reset side other end's reset starting point movement, and reach or about to reach reset starting point when complete integrated nail's firing;D: control nail tube leaves matrix, brake pin from reset starting point to locking terminal point movement, and relock hammer.E: repeat A, B, C, D.The method cancels the firing pin spring on the basis, makes the firing of nail gun more stable and reliable, solves the problem that the service life of existing nail gun is shortened, safety is low, cost is higher, structure is complex and machining difficulty is big.

Description

Technical Field

[0001] This invention relates to the field of nail fastening technology, and more specifically to a firing method for an axial nail gun. Background Technology

[0002] A nail gun is a fastening tool that uses a firing pin to fire a single-piece nail, and the force generated by the explosion of the nail quickly drives the nail into the substrate. Due to its advantages such as portability, reliable fastening, and ease of construction, it has become an indispensable tool in woodworking, construction and other industries.

[0003] Currently, most nail guns on the market are axially oriented. For example, patent document CN116276819A discloses a portable integrated nail fastener, which includes: a housing for inserting an integrated nail; a handle connected to the housing and for gripping by the human hand, wherein relative displacement can occur between the handle and the housing; and a firing part disposed within the housing for firing the integrated nail. The firing part includes a firing sleeve, a firing pin movable inside the firing sleeve, and a hammer. One end of the firing sleeve passes through the inside of the firing tube, and the other end passes through the inside of the outer sleeve. The firing pin is connected to the hammer and can pass through the firing sleeve to the firing tube. A firing pin spring and a firing pin body are radially disposed inside the hammer. Under the pressure of the firing pin spring, the firing pin body partially passes through the hammer to the outside of the firing sleeve. However, this type of nail gun requires a release block or stepped structure to release the firing pin and fire the nail cartridge, thus still presenting the following technical problems:

[0004] 1. Although the nail gun can limit the hammer and ensure the safe use of the firing part by cooperating with the firing pin body and firing pin spring, the firing pin spring will inevitably suffer from material fatigue, deformation, brittle fracture and other unexpected factors that weaken or fail its elasticity during long-term use. This not only shortens the service life of the nail gun, but also affects the safety of the nail gun.

[0005] 2. The firing mechanism of this nail gun requires limiting holes to be made on the outer casing and the hammer to allow for limiting by the limiting pin. In addition, the firing pin spring needs to be manufactured and assembled separately, which not only makes the manufacturing process of the nail gun cumbersome and costly, but also results in a complex structure.

[0006] 3. The firing mechanism of this nail gun requires the firing pin to slide with the hammer. This requires the outer diameter of the firing pin and the radial pin hole of the hammer to be machined more precisely. If the deviation is slightly out of tolerance, it will cause problems such as jamming of the firing pin and failure to fire. Therefore, there is a technical problem with great processing difficulty. Summary of the Invention

[0007] This invention provides a firing method for an axial nail gun. This method eliminates the need for a firing pin spring and utilizes a reset side and an unlock side on the main sleeve, in conjunction with a brake pin, to achieve effective firing of the nail gun. This not only makes the firing of the nail gun more stable and reliable, but also solves the technical problems of existing nail guns, such as shortened service life, reduced safety, cumbersome manufacturing process, high cost, complex structure, and high processing difficulty.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] A method for firing an axial nail gun, the method comprising the following steps:

[0010] Step A: Compression Energy Storage

[0011] Install an integrated nail inside the nail tube, press the nail tube against the base, press the main sleeve forward to compress the return spring inside the main sleeve and the firing spring located between the hammer and the handle, so that the brake pin installed in the radial pin hole of the hammer moves from the locking end point on the return side of the main sleeve to the unlocking start point on the unlocking side behind it to compress and store energy.

[0012] Step B: Unlock

[0013] Continue pressing the main sleeve forward. The firing pin sleeve causes the brake pin to move from the unlocking starting point at one end of the unlocking side of the main sleeve to the firing point at the other end of the unlocking side of the main sleeve. When the brake pin reaches the firing point, it slides out of the brake pin groove on the firing pin sleeve and enters the firing guide groove, completing the compression and energy storage. At the same time, the brake pin releases the lock of the hammer.

[0014] Step C: Control firing

[0015] Under the action of the firing spring, the hammer drives the firing pin to move forward. At the same time, the brake pin located in the firing guide groove moves from the firing point to the reset starting point on the other end of the reset side of the main sleeve. When the brake pin reaches or is about to reach the reset starting point, the tip of the firing pin extends out of the firing pin sleeve and enters the nail tube to complete the firing of the integrated nail.

[0016] Step D: Reset Lock

[0017] The control pin tube leaves the base. Under the combined action of the reset side and the reset spring in the main sleeve, the brake pin located in the firing guide groove moves from the reset starting point to the locking end point. When the brake pin reaches the locking end point, the brake pin slides out of the firing guide groove and enters the brake pin groove to relock the hammer.

[0018] Step E: Repeat steps A, B, C, and D.

[0019] The main sleeve has a limiting hole. The reset side and the unlocking side are respectively inclinedly arranged at the front end and rear end of the limiting hole. There is an upper side and a lower side between the reset side and the unlocking side. The locking end point is located between the reset side and the lower side, the unlocking start point is located between the lower side and the unlocking side, the firing point is located between the unlocking side and the upper side, and the reset start point is located between the upper side and the reset side.

[0020] The locking endpoint, unlocking endpoint, firing point, and reset endpoint are all arc-shaped. The locking endpoint is formed by an arc transition between the reset side and the lower side, the unlocking endpoint is formed by an arc transition between the lower side and the unlocking side, the firing point is formed by an arc transition between the unlocking side and the upper side, and the reset endpoint is formed by an arc transition between the upper side and the reset side.

[0021] Both the upper and lower sides are arranged along the axial direction of the main sleeve, and the upper and lower sides are parallel.

[0022] One end of the brake pin is located in the radial pin hole of the hammer, and the other end passes through the brake pin groove and is located in the limiting hole.

[0023] The firing guide groove is arranged along the axis of the firing pin sleeve, and the brake pin groove is arranged on one side of the rear end of the firing guide groove, and the brake pin groove is connected to the firing guide groove.

[0024] The firing guide groove and the brake pin groove are connected by an arc-shaped transition.

[0025] The width of the limiting hole is greater than or equal to the sum of the widths of the firing guide groove and the brake pin groove.

[0026] The firing pin sleeve is also provided with an axial guide groove for radial positioning, and the main sleeve is equipped with a positioning pin whose end extends into the axial guide groove.

[0027] The axial guide groove is located on the opposite side of the firing guide groove, and the positioning pin is located on the opposite side of the limiting hole.

[0028] The advantages of using this invention are:

[0029] 1. The key innovation of this invention lies in the use of a reset side, an unlock side, and corresponding locking endpoint, unlocking start point, firing point, and reset start point on the main sleeve, which cooperate with the brake pin groove on the firing pin sleeve to control the brake pin, thereby achieving the unlocking and locking of the hammer and thus the firing and reset of the nail gun. Compared with the prior art, this invention eliminates the firing pin spring. It only requires placing the brake pin in the radial pin hole of the hammer and the brake pin groove of the firing pin sleeve, and then utilizing the reset side, unlock side, locking endpoint, unlocking start point, firing point, and reset start point on the main sleeve. On the one hand, this completely avoids the unexpected factors of weakening or failure of the firing pin spring due to material fatigue, deformation, brittle fracture, etc., during long-term use, effectively improving the safety, stability, reliability, and service life of the nail gun. On the other hand, since the firing pin spring no longer needs to be manufactured and assembled separately, it also simplifies the structure and manufacturing process of the nail gun and reduces production costs. Furthermore, it eliminates the need for the brake pin to slide within the radial pin hole, thus reducing the machining difficulty of the brake pin and the radial pin hole.

[0030] In summary, this invention, by eliminating the firing pin spring, utilizes the reset side, unlocking side, and corresponding points on the main sleeve to cooperate with the brake pin to achieve effective firing of the nail gun. This not only ensures long-term stable and reliable use while simplifying the structure, but also has the technical effects of increasing service life, improving safety, simplifying manufacturing processes, reducing costs, simplifying the structure, and reducing processing difficulty.

[0031] 2. The limiting hole of the present invention adopts a structure including a reset side, an unlocking side, an upper side, a lower side, a locking end point, an unlocking start point, a firing point, and a reset start point. It has the advantages of simple structure, easy and accurate control of the brake pin, and effective locking and unlocking of the hammer, which further improves the stability and reliability during firing.

[0032] 3. The present invention sets the locking endpoint, unlocking starting point, firing point and reset starting point as arc-shaped, which is convenient for manufacturing and also makes it easy to control the pin to switch accurately between each point.

[0033] 4. The present invention sets the firing guide groove and the brake pin groove as an arc transition, which is conducive to the flexible entry and exit of the brake pin between the firing guide groove and the brake pin groove.

[0034] 5. The present invention uses an axial guide groove and a positioning pin installed on the main sleeve to achieve radial positioning of the firing pin sleeve, which has the advantages of simple structure and good positioning effect, and also helps to simplify the manufacturing process and reduce costs. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the planar assembly structure of the present invention;

[0036] Figure 2 for Figure 1 A schematic diagram of the axial cross-section structure;

[0037] Figure 3 for Figure 2 A schematic diagram of the planar structure;

[0038] Figure 4 for Figure 3 A schematic diagram of the axial cross-section structure;

[0039] Figure 5 for Figure 4 Schematic diagram of CC cross-section structure;

[0040] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure;

[0041] Figure 7 This is a schematic diagram of the planar assembly structure of the firing device in this invention;

[0042] Figure 8 for Figure 7 A schematic diagram of the axial cross-section structure;

[0043] Figure 9 for Figure 8 A schematic diagram of the AA cross-sectional structure;

[0044] Figure 10 for Figure 7 A schematic diagram of the planar device after being rotated 90 degrees;

[0045] Figure 11 for Figure 7 A schematic diagram of the rear view structure;

[0046] Figure 12 This is a three-dimensional assembly structure diagram (I) of the firing device in this invention;

[0047] Figure 13 This is a three-dimensional assembly structure diagram (II) of the firing device in this invention;

[0048] Figure 14 A three-dimensional structural diagram of a nail gun in its natural state;

[0049] Figure 15 for Figure 14 Schematic diagram of the DD cross-sectional structure;

[0050] Figure 16 A three-dimensional structural diagram of a nail gun in a compressed, energy-storing state.

[0051] Figure 17 for Figure 16 A schematic diagram of the EE cross-sectional structure;

[0052] Figure 18 A three-dimensional structural diagram of the nail gun when it is in the unlocked state;

[0053] Figure 19 for Figure 18 A schematic diagram of the FF cross-sectional structure;

[0054] Figure 20 A three-dimensional structural diagram of a nail gun in the firing position;

[0055] Figure 21 for Figure 20 Schematic diagram of the cross-sectional structure of GG;

[0056] Figure 22 A three-dimensional structural diagram of the nail gun in the reset and ready state;

[0057] Figure 23 for Figure 22 A schematic diagram of the HH cross-sectional structure.

[0058] The markings in the diagram are as follows: 1. Main sleeve, 2. Firing pin sleeve, 3. Movable sleeve, 4. Return spring, 5. Firing pin, 6. Hammer, 7. Radial pin hole, 8. Brake pin, 9. Firing guide groove, 10. Brake pin groove, 11. Limiting hole, 12. Locking end point, 13. Unlocking start point, 14. Firing point, 15. Reset start point, 16. Upper side, 17. Lower side, 18. Reset side, 19. Unlocking side, 20. Axial guide groove, 21. Positioning pin, 22. Screw tube, 23. Noise-absorbing and heat-insulating sleeve, 24. Protective sleeve, 25. Firing spring, 26. Handle, 27. Integrated screw. Detailed Implementation

[0059] Example 1

[0060] This embodiment provides a firing method for an axial nail gun, such as Figure 1-13 As shown, the structure of the axial nail gun involved in this firing method is as follows:

[0061] like Figure 1-13As shown, the axial nail gun includes a nail tube 22, a sound-absorbing and heat-insulating sleeve 23, a firing mechanism, a protective sleeve 24, a firing spring 25, and a handle 26. The firing mechanism includes a main sleeve 1 and a firing pin sleeve 2. The firing pin sleeve 2 is movably disposed inside the front half of the main sleeve 1. A movable sleeve 3 is provided at the front end of the main sleeve 1 via the firing pin sleeve 2. A movable firing pin 5 and a hammer 6 are disposed within the firing pin sleeve 2. The firing pin 5 is mounted on the hammer 6, which has a radial pin hole 7 for mounting a braking pin 8. The nail tube 22 is fixed to the front end of the movable sleeve 3 via the sound-absorbing and heat-insulating sleeve 23, and the front end of the firing pin sleeve 2 extends into the nail tube 22. The handle 26 is fixed to the rear end of the main sleeve 1, and the protective sleeve 24 is fixedly fitted onto the rear half of the main sleeve 1 via the handle 26. One end of the firing spring 25 is fitted onto the rear end of the hammer 6, and the other end abuts against the handle 26. It should be noted that the aforementioned structure and connection relationship of the axial nail gun are all existing conventional technologies. For details, please refer to the comparative literature cited in the background section, and will not be repeated here.

[0062] The key point is to press Figure 1 , 7 As shown, the firing pin sleeve 2 is provided with a firing guide groove 9, which is arranged along the axial direction of the firing pin sleeve 2. A brake pin groove 10 for locking the brake pin 8 is provided on one side of its rear end, and the brake pin groove 10 is connected to the firing guide groove 9.

[0063] Furthermore, to ensure that the brake pin groove 10 can reliably lock the brake pin 8, it is preferable that the axis of the brake pin groove 10 is perpendicular to the axis of the firing guide groove 9. To facilitate the smooth sliding of the brake pin 8 between the firing guide groove 9 and the brake pin groove 10, it is preferable that the firing guide groove 9 and the brake pin groove 10 have an arc-shaped transition.

[0064] Additionally, a limiting hole 11 is formed on the wall of the rear half of the main sleeve 1. This limiting hole 11 corresponds to the firing guide groove 9 in the axial direction, and the width of the limiting hole 11 is greater than or equal to the sum of the widths of the firing guide groove 9 and the brake pin groove 10. One end of the brake pin 8 is located in the radial pin hole 7 of the hammer 6, and the other end passes through the brake pin groove 10 and is located in the limiting hole 11. A reset side 18 matching the brake pin 8 located in the brake pin groove 10 is provided on the front end side of the limiting hole 11, and an unlocking side 19 matching the brake pin 8 located in the brake pin groove 10 is provided on the rear end side of the limiting hole 11.

[0065] The aforementioned brake pin 8 and hammer 6 are rigidly connected. When the nail gun is in its natural state, the brake pin 8 is locked in the brake pin groove 10 by the cooperation of the return spring 4 and the limiting hole 11, thus locking the hammer 6. When the main sleeve 1 is subjected to external force and moves forward, the brake pin 8 slides from the brake pin groove 10 into the firing guide groove 9 under the action of the unlocking side 19, and releases the lock of the brake pin 8 on the hammer 6, and the nail gun enters the firing state. When the main sleeve 1 loses external force, the brake pin 8 located in the firing guide groove 9 is reset to the brake pin groove 10 under the combined action of the return side 18 and the return spring 4 located between the main sleeve 1 and the firing pin sleeve 2, and the lock of the brake pin 8 on the hammer 6 is restored, and the nail gun enters the locked state.

[0066] It should be noted that the other end of the brake pin 8, after passing through the brake pin groove 10 and residing within the limiting hole 11, has two structures: one where the end face of the brake pin 8 extends out of the limiting hole 11, and the other where the end face of the brake pin 8 is at the same height as or slightly lower than the outer surface of the limiting hole 11. Of course, to ensure more accurate control, it is preferable that the end face of the brake pin 8 is at the same height as or extends out of the limiting hole 11.

[0067] According to a preferred embodiment of this example, such as Figure 1 , 7 As shown, the limiting hole 11 has a quadrilateral structure. The reset side 18 and the unlocking side 19 are respectively inclinedly arranged at the front and rear ends of the limiting hole 11. There is an upper side 16 and a lower side 17 between the reset side 18 and the unlocking side 19. The two ends of the unlocking side 19 are the unlocking starting point 13 and the firing point 14, respectively. The two ends of the reset side 18 are the reset starting point 15 and the locking ending point 12, respectively. Specifically, the locking ending point 12, the unlocking starting point 13, the firing point 14, and the reset starting point 15 are located at the four corners of the limiting hole 11. The locking ending point 12 is located between the reset side 18 and the lower side 17. The unlocking starting point 13 is located between the lower side 17 and the unlocking side 19. The firing point 14 is located between the unlocking side 19 and the upper side 16. The reset starting point 15 is located between the upper side 16 and the reset side 18.

[0068] Furthermore, the locking endpoint 12, unlocking starting point 13, firing point 14, and reset starting point 15 are all arc-shaped. The locking endpoint 12 is formed by an arc transition between the reset side 18 and the lower side 17; the unlocking starting point 13 is formed by an arc transition between the lower side 17 and the unlocking side 19; the firing point 14 is formed by an arc transition between the unlocking side 19 and the upper side 16; and the reset starting point 15 is formed by an arc transition between the upper side 16 and the reset side 18. When the main sleeve 1 moves forward under external force, the brake pin 8, under the action of the unlocking side 19, moves from the unlocking starting point 13 to the firing point 14 to release the lock on the hammer 6. When the main sleeve 1 loses external force, the brake pin 8, under the action of the reset side 18, moves from the reset starting point 15 to the locking endpoint 12 to restore the lock on the hammer 6.

[0069] It should be noted that the specific curvature of the locking endpoint 12, unlocking starting point 13, firing point 14, and reset starting point 15 should be such that the brake pin 8 can switch flexibly and accurately between each point. The arc-shaped structure of the locking endpoint 12, unlocking starting point 13, firing point 14, and reset starting point 15 can be directly cut during the preparation of the limiting hole 11.

[0070] The following is a further detailed explanation of the fit between the limiting hole 11 and the brake pin 8:

[0071] When the main sleeve 1 moves forward under external force, the brake pin 8 located in the brake pin groove 10 of the firing pin sleeve 2 moves backward. Specifically, it first moves from the locking endpoint 12 along the lower side 17 to the unlocking starting point 13, and then moves through the unlocking side 19 to the firing point 14. During the movement of the brake pin 8 from the locking endpoint 12 along the lower side 17 to the unlocking starting point 13, the nail gun compresses and stores energy. During the movement of the brake pin 8 from the unlocking side 19 to the firing point 14, the brake pin 8 will slide from the brake pin groove 10 to the firing guide groove 9 under the action of the unlocking side 19, while the nail gun continues to compress and store energy. When the brake pin 8 reaches the firing point 14, the brake pin 8 just slides out of the brake pin groove 10 and enters the rear end of the firing guide groove 9. The nail gun completes the compression and energy storage, and at the same time, the brake pin 8 releases its lock on the hammer 6.

[0072] After the brake pin 8 and hammer 6 are released from their lock, the hammer 6 will push the firing pin 5 forward rapidly under the thrust of the nail gun firing spring 25, thus detonating and firing the integrated nail 27. During this firing process, the brake pin 8 will move from the firing point 14 along the upper side 16 to the reset point 15.

[0073] After firing, the external force applied to the main sleeve 1 is removed. Once the main sleeve 1 loses this force, the brake pin 8 will move from the reset starting point 15 to the locking endpoint 12 under the combined action of the return spring 4 and the return side 18 (the return spring 4 will be compressed under external force). During this movement, the brake pin 8 will slide from the firing guide groove 9 to the brake pin groove 10. When the brake pin 8 reaches the locking endpoint 12, it will just slide out of the firing guide groove 9 and into the brake pin groove 10, thus restoring the brake pin 8's locking of the hammer 6.

[0074] It should be noted that the aforementioned reset point 15 is also equivalent to the firing point endpoint. That is, when the brake pin 8 moves to the reset point 15 (or is about to reach the reset point 15), it indicates that the firing pin 5 has been fired and that the brake pin 8 will begin to reset. However, to avoid the brake pin 8 hitting the edge of the reset point 15 when the firing pin 5 is fired, it is preferable that there is a distance of 1-5mm between the firing point endpoint and the reset point 15. Specifically, the distance between the firing point endpoint and the reset point 15 is 3mm.

[0075] According to another optional implementation of this embodiment, such as Figure 1 As shown, the upper side 16 and the lower side 17 are both arranged along the axial direction of the main sleeve 1, and the upper side 16 and the lower side 17 are parallel to each other, so as to ensure effective control of the brake pin 8 while simplifying the structure of the limiting hole 11.

[0076] To ensure the stability and reliability of the firing pin sleeve 2 during axial movement, this embodiment can use an existing conventional structure for radial limiting, which will not be described in detail here.

[0077] The axial nail gun involved in this embodiment, in its natural state, is as follows: Figure 14 , 15 As shown, at this time, the brake pin 8 is located in the brake pin groove 10 and at the locking end point 12 of the limiting hole 11, and the hammer 6 is locked by the brake pin 8 and cannot move.

[0078] The firing method based on the above-mentioned axial nail gun includes the following steps:

[0079] Step A: Compression Energy Storage

[0080] An integrated nail 27 is installed inside the nail tube 22. This integrated nail 27 is typically a structure where the nail and nail cartridge are fixed together, but a separate structure of nail and nail cartridge can also be used. Then, the nail tube 22 is pressed against the base, and the handle 26 is pushed forward, pressing the main sleeve 1 forward. This compresses the return spring 4 inside the main sleeve 1 and the firing spring 25 located between the hammer 6 and the handle 26. This causes the brake pin 8, installed in the radial pin hole 7 of the hammer 6, to move from the locking endpoint 12 at one end of the return side 18 on the main sleeve 1 to the unlocking starting point 13 at one end of the unlocking side 19, thus compressing and storing energy to achieve the desired effect. Figure 16, 17 The compressed energy storage state is shown.

[0081] Step B: Unlock

[0082] Continue pressing the main sleeve 1 forward. The firing pin sleeve 2 causes the brake pin 8 to move from the unlocking starting point 13 at one end of the unlocking side 19 on the main sleeve 1 to the firing point 14 at the other end of the unlocking side 19 on the main sleeve 1. When the brake pin 8 reaches the firing point 14, it slides out of the brake pin groove 10 on the firing pin sleeve 2 and enters the firing guide groove 9, completing the compression and energy storage. At the same time, the brake pin 8 releases the lock of the hammer 6, achieving the desired effect. Figure 18 , 19 The unlocked state is shown.

[0083] Step C: Control firing

[0084] Under the action of the firing spring 25, the hammer 6 drives the firing pin 5 to move forward. At the same time, the brake pin 8 located in the firing guide groove 9 moves from the firing point 14 to the reset starting point 15 at the other end of the reset side 18 on the main sleeve 1. When the brake pin 8 reaches or is about to reach the reset starting point 15, the tip of the firing pin 5 extends out of the firing pin sleeve 2 and enters the nail tube 22 to complete the firing of the integral nail 27, achieving the desired result. Figure 20 , 21 The firing position is shown.

[0085] Step D: Reset Lock

[0086] Control the nail tube 22 to leave the substrate, so as to achieve the desired effect. Figure 22 , 23 The reset state is shown. Then, under the combined action of the reset side 18 and the reset spring 4 in the main sleeve 1, the brake pin 8 located in the firing guide groove 9 moves from the reset starting point 15 to the locking end point 12. When the brake pin 8 reaches the locking end point 12, the brake pin 8 slides out of the firing guide groove 9 and enters the brake pin groove 10 to relock the hammer 6.

[0087] Step E: Repeat steps A, B, C, and D.

[0088] Example 2

[0089] This embodiment further optimizes the radial limiting structure of the firing pin sleeve 2 based on embodiment 1.

[0090] like Figure 7-13As shown, in this embodiment, an axial limiting structure is provided between the main sleeve 1 and the firing pin sleeve 2. The axial limiting structure includes an axial guide groove 20 for radial positioning, a positioning hole and a positioning pin 21. The axial guide groove 20 is opened on the firing pin sleeve 2, the positioning hole is opened on the main sleeve 1, and the positioning pin 21 is installed in the positioning hole. The end of the positioning pin 21 extends into the axial guide groove 20 to perform radial limiting on the firing pin sleeve 2.

[0091] Furthermore, for ease of assembly, the axial guide groove 20 is preferably located on the opposite side of the firing guide groove 9, and the positioning hole is located on the opposite side of the limiting hole 11. Of course, depending on actual needs, the axial guide groove 20 can also be set at any position relative to the firing guide groove 9, and correspondingly, the positioning hole can also be set at any position relative to the main sleeve 1. This radial limiting structure not only simplifies the structure of the nail gun and facilitates assembly, but also provides the advantage of good radial limiting effect.

[0092] The above description is merely a specific embodiment of the present invention. Any feature disclosed in this specification may be replaced by other equivalent or similar features unless otherwise specified. All features or steps in the disclosed methods or processes may be combined in any way, except for mutually exclusive features and / or steps.

Claims

1. A method for firing an axial nail gun, characterized in that... Includes the following steps: Step A: Compression Energy Storage Install an integral nail (27) inside the nail tube (22), press the nail tube (22) against the base, press the main sleeve (1) to move forward, compress the return spring (4) inside the main sleeve (1) and the firing spring (25) located between the hammer (6) and the handle (26), so that the brake pin (8) installed in the radial pin hole (7) of the hammer (6) moves from the locking end point (12) at one end of the return side (18) on the main sleeve (1) to the unlocking start point (13) at one end of the unlocking side (19) behind, and compress and store energy; Step B: Unlock Continue pressing the main sleeve (1) forward, the firing pin sleeve (2) causes the brake pin (8) to move from the unlocking starting point (13) at one end of the unlocking side (19) on the main sleeve (1) to the firing point (14) at the other end of the unlocking side (19) on the main sleeve (1). When the brake pin (8) reaches the firing point (14), the brake pin (8) slides out from the brake pin groove (10) on the firing pin sleeve (2) and enters the firing guide groove (9) to complete the compression and energy storage. At the same time, the brake pin (8) releases the lock of the hammer (6). Step C: Control firing Under the action of the firing spring (25), the hammer (6) drives the firing pin (5) to move forward. At the same time, the brake pin (8) located in the firing guide groove (9) moves from the firing point (14) to the reset starting point (15) at the other end of the reset side (18) of the main sleeve (1). When the brake pin (8) reaches or is about to reach the reset starting point (15), the tip of the firing pin (5) extends out of the firing pin sleeve (2) and enters the nail tube (22) to complete the firing of the integral nail (27). Step D: Reset Lock When the control pin tube (22) leaves the base, under the combined action of the reset side (18) and the reset spring (4) in the main sleeve (1), the brake pin (8) located in the firing guide groove (9) moves from the reset starting point (15) to the locking end point (12). When the brake pin (8) reaches the locking end point (12), the brake pin (8) slides out of the firing guide groove (9) and enters the brake pin groove (10) to relock the hammer (6). Step E: Repeat steps A, B, C, and D; The main sleeve (1) has a limiting hole (11). The reset side (18) and the unlocking side (19) are respectively inclinedly arranged at the front end and rear end of the limiting hole (11). There is an upper side (16) and a lower side (17) between the reset side (18) and the unlocking side (19). The locking endpoint (12) is located between the reset side (18) and the lower side (17). The unlocking starting point (13) is located between the lower side (17) and the unlocking side (19). The firing point (14) is located between the unlocking side (19) and the upper side (16). The reset starting point (15) is located between the upper side (16) and the reset side (18).

2. The firing method of an axial nail gun according to claim 1, characterized in that: The locking endpoint (12), unlocking starting point (13), firing point (14) and reset starting point (15) are all arc-shaped. The locking endpoint (12) is formed by an arc transition between the reset side (18) and the lower side (17), the unlocking starting point (13) is formed by an arc transition between the lower side (17) and the unlocking side (19), the firing point (14) is formed by an arc transition between the unlocking side (19) and the upper side (16), and the reset starting point (15) is formed by an arc transition between the upper side (16) and the reset side (18).

3. The firing method of an axial nail gun according to claim 1, characterized in that: The upper side (16) and the lower side (17) are both arranged along the axial direction of the main sleeve (1), and the upper side (16) and the lower side (17) are parallel.

4. The firing method of an axial nail gun according to claim 1, characterized in that: One end of the brake pin (8) is located in the radial pin hole (7) of the hammer (6), and the other end passes through the brake pin groove (10) and is located in the limiting hole (11).

5. The firing method of an axial nail gun according to claim 1, characterized in that: The firing guide groove (9) is arranged along the axis of the firing pin sleeve (2), and the brake pin groove (10) is arranged on the rear end side of the firing guide groove (9), and the brake pin groove (10) is connected to the firing guide groove (9).

6. The firing method of an axial nail gun according to claim 1, characterized in that: The firing guide groove (9) and the brake pin groove (10) are connected by an arc-shaped transition.

7. The firing method of an axial nail gun according to claim 1, characterized in that: The width of the limiting hole (11) is greater than or equal to the sum of the widths of the firing guide groove (9) and the brake pin groove (10).

8. A firing method for an axial nail gun according to any one of claims 1-7, characterized in that: The firing pin sleeve (2) is also provided with an axial guide groove (20) for radial positioning, and the main sleeve (1) is equipped with a positioning pin (21) whose end extends into the axial guide groove (20).

9. The firing method of an axial nail gun according to claim 8, characterized in that: The axial guide groove (20) is located on the opposite side of the firing guide groove (9), and the positioning pin (21) is located on the opposite side of the limiting hole (11).

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