Safety structure of axial nail shooting device

Abstract

The utility model discloses a safety structure of an axial nail shooter, which relates to the technical field of nail fastening and comprises a main sleeve, and a safety device capable of rotating around the main sleeve to lock or unlock a limit pin is arranged at the front end of an axial limit groove on the main sleeve. The limiting pin is located at the front end of the axial limiting groove and locked by a safety groove of the safety device, or the limiting pin is located in the axial limiting groove and a receding notch of the safety device to be unlocked. According to the safety structure, the safety device is additionally arranged on the main sleeve, and the limiting pin can be locked by rotating the safety device before the dud is withdrawn, so that the firing pin body, the brake pin and the firing pin sleeve are all locked and cannot move, the integrated nail cannot be detonated again no matter how the dud is withdrawn, the safety of the dud is ensured when the dud is withdrawn, and the service life of the dud is prolonged. The nail shooting device solves the technical problem that an existing nail shooting device is prone to hurting people when a dud is withdrawn.

Description

Technical Field

[0001] This utility model relates to the field of nail fastening technology, specifically to a safety and security structure 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 thrust generated by the explosion of the nail quickly drives the nail into the substrate. With the development of nail fastening technology, nail guns are increasingly widely used in various industries due to their advantages such as light weight, good fastening effect, and ease of use.

[0003] Currently, most nail guns on the market are axial in structure. For example, patent document CN109940557A discloses a fast-release axial nail gun. This type of nail gun mainly includes a main sleeve, a movable sleeve, a nail tube, a firing pin body (including a pin shaft and a pin seat), a firing pin sleeve, a braking pin (firing pin), a limiting pin (cylindrical pin), and a spring. The axial movement of the firing pin body is limited by simultaneously inserting the limiting pin into a positioning pin hole in the firing pin body, a symmetrically arranged slot in the firing pin sleeve, and a symmetrically arranged axial limiting groove on the rear section of the main sleeve, thus ensuring stable and reliable firing. However, in actual use, due to various reasons, duds may occur where the nail cartridge in the integrated nail is not fired, meaning the cartridge in the integrated nail is not detonated inside the nail tube. If the main sleeve pushes the firing pin body into the nail tube to release the dud cartridge, the cartridge may be detonated when the firing pin touches the integrated nail, posing a potential safety hazard. Utility Model Content

[0004] This invention addresses the safety hazard of existing nail guns easily re-exploding when encountering unexploded ordnance, thus causing injury. It provides an axial nail gun safety mechanism that adds a safety device to the main sleeve. Before encountering unexploded ordnance, the safety device can be rotated to lock the limiting pin, thereby locking the firing pin body, braking pin, and firing pin sleeve, preventing movement. This ensures safety during unexploded ordnance ejection, regardless of the ejection pattern, preventing the nail from re-exploding and solving the technical problem of injury caused by unexploded ordnance in existing nail guns.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A safety mechanism for an axial nail gun includes a main sleeve. The main sleeve has a safety device located at the front end of an axial limiting groove, which can rotate around the main sleeve to lock or unlock a limiting pin. The limiting pin is located at the front end of the axial limiting groove and is locked by the safety groove of the safety device, or the limiting pin is unlocked in the clearance notch of the axial limiting groove and the safety device.

[0007] The safety groove and the clearance notch are symmetrically formed on the side wall of the safety device. In the locked state, the clearance notch is misaligned with the axial limiting groove, and the two ends of the limiting pin are locked by the safety groove at the front end of the axial limiting groove. In the unlocked state, the clearance notch is connected to the axial limiting groove, the safety groove releases the locking of the limiting pin, and the limiting pin can move within the axial limiting groove.

[0008] The safety device includes an integrally formed front rotating ring and a rear safety ring, with a safety groove formed on the rear safety ring and a clearance notch formed on the end face of the rear safety ring and located at one end of the safety groove.

[0009] The outer diameter of the front rotating ring is larger than the outer diameter of the rear safety ring.

[0010] The front rotating ring is a conical structure, a curved surface structure, a ring structure, or a combination of conical and ring structures, and the rear safety ring is a ring structure.

[0011] The main sleeve includes a front sleeve and a rear sleeve. The outer diameter of the front sleeve is larger than that of the rear sleeve. There is an outer step between the front sleeve and the rear sleeve. An axial limiting groove is located on the rear sleeve. The front end of the axial limiting groove refers to the connection point between the front sleeve and the rear sleeve. An inner step adapted to the outer step is provided between the front rotating ring and the rear safety ring. The front rotating ring and the rear safety ring are located on the front sleeve and the rear sleeve, respectively.

[0012] The rear end of the front sleeve is provided with an annular groove, and a positioning pin with its end extending into the annular groove is fixed on the front rotating ring.

[0013] The end of the positioning pin is provided with a retractable ball, and the bottom of the annular groove is provided with a locking positioning hole and an unlocking positioning hole that are adapted to the retractable ball. Under the action of the safety device, the positioning pin can slide between the locking positioning hole and the unlocking positioning hole. In the locked state, the retractable ball is located in the locking positioning hole, and the locking positioning hole and the retractable ball cooperate to position the safety device. In the unlocked state, the retractable ball is located in the unlocking positioning hole, and the unlocking positioning hole and the retractable ball cooperate to position the safety device.

[0014] The positioning pins are symmetrically fixed to the front rotating ring by a threaded connection structure, and the number of locking positioning holes and unlocking positioning holes are the same as the number of positioning pins.

[0015] Both the locking and unlocking positioning holes are hemispherical or conical.

[0016] The advantages of using this utility model are:

[0017] 1. The key innovation of this utility model lies in the addition of a safety device on the main sleeve that can lock and unlock the limiting pin. When a dud needs to be ejected during use, the safety device can be rotated to the locked position. The safety device locks the limiting pin in the front end of the axial limiting groove, preventing it from moving. Correspondingly, the firing pin body, brake pin, and firing pin sleeve are all locked and cannot move. At this time, no matter how the shell is ejected, the integrated nail cannot be detonated again, ensuring the safety of the dud ejection and avoiding the risk of injury. After the dud is ejected, simply rotate the safety device to the unlocked position to release the locking restriction of the limiting pin. At this time, the limiting pin can move normally within the axial limiting groove, and the nail gun can continue to fire the integrated nail normally. This utility model only requires rotating the safety device to lock and unlock the limiting pin, which has the advantages of simple structure, convenient operation, and strong practicality.

[0018] 2. The symmetrical design of the safety groove in this utility model makes the locking of the safety device on the limit pin more stable and reliable. If only a single safety groove is set, not only will the stability be poor and the safety groove will be easily damaged, but the limiting structure of the nail gun will also be easily damaged.

[0019] 3. This utility model divides the safety device into a front rotating ring and a rear safety ring, and makes the outer diameter of the front rotating ring larger than that of the rear safety ring. This facilitates the rotation adjustment of the safety device, the positioning and installation of the nail gun protective sleeve, and also helps to hide the rear safety ring, the safety groove and the clearance notch inside the protective sleeve.

[0020] 4. This utility model can make the front rotating ring into a conical structure, a curved surface structure, a ring structure, or a combination of conical and ring structures, and make the rear safety ring into a ring structure, which has the advantages of conforming to human hand ergonomics, being easy to operate, and having an aesthetically pleasing appearance.

[0021] 5. The combination of the outer step and the inner step in this utility model helps to prevent the safety device from falling out of the front cover when it is unlocked.

[0022] 6. This utility model, through the cooperation of the ring groove and the positioning pin, can play a guiding role when the safety device rotates, thereby making the rotation of the safety device more stable, flexible and accurate.

[0023] 7. This utility model, through the cooperation of a retractable ball bearing, a locking positioning hole, and an unlocking positioning hole, can position the safety device in both the locked and unlocked states. Specifically, when the retractable ball bearing on the positioning pin enters the locking or unlocking positioning hole, the safety device will be positioned and unable to rotate freely. This structure improves the stability and reliability of the safety device in both locked and unlocked states, and prevents locking or unlocking failures due to accidental slippage. Furthermore, when the safety device rotates, the retractable ball bearing is compressed, without affecting the normal rotation of the safety device.

[0024] 8. The symmetrical positioning pins of this utility model help to further improve the stability of the guide.

[0025] 9. In this utility model, both the locking positioning hole and the unlocking positioning hole are designed as hemispherical or conical holes, which facilitates accurate compression of the retractable ball when controlling the rotation of the safety device, thereby allowing the safety device to be rotated with a smaller force. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the planar structure of the present invention in the locked state;

[0027] Figure 2 for Figure 1 A schematic diagram of the AA cross-sectional structure;

[0028] Figure 3 This is a three-dimensional structural diagram of the present invention in the locked state;

[0029] Figure 4 This is a schematic diagram of the planar structure of the present invention in the unlocked state;

[0030] Figure 5 for Figure 4 Schematic diagram of the BB cross-section structure;

[0031] Figure 6 This is a three-dimensional structural diagram of the present invention in the unlocked state;

[0032] Figure 7 This is a schematic diagram of the front view structure of the safety device;

[0033] Figure 8 for Figure 7 Schematic diagram of CC cross-section structure;

[0034] Figure 9 This is a schematic diagram of the right-side plan view of the safety device.

[0035] Figure 10 This is a schematic diagram of the left-side plan view of the safety device;

[0036] Figure 11 A three-dimensional structural diagram of the safety device (I);

[0037] Figure 12 A three-dimensional structural diagram of the safety device (II);

[0038] Figure 13 A schematic diagram of the main unit's floor plan;

[0039] Figure 14 for Figure 13 Schematic diagram of the DD cross-sectional structure;

[0040] Figure 15 for Figure 13 A schematic diagram of the EE cross-sectional structure;

[0041] Figure 16 A schematic diagram of the three-dimensional structure of the main unit;

[0042] Figure 17 This is a schematic diagram of a planar assembly structure of a nail gun using this utility model;

[0043] Figure 18 for Figure 17 A schematic diagram of the three-dimensional assembly structure;

[0044] Figure 19 for Figure 17 A schematic diagram of the assembled 3D structure;

[0045] Figure 20 This is a schematic diagram of the structure when the safety device is in the unlocked state.

[0046] Figure 21 for Figure 20 A schematic diagram of the FF cross-sectional structure;

[0047] Figure 22 for Figure 21 Schematic diagram of the cross-sectional structure of GG;

[0048] Figure 23 This is a schematic diagram of the structure when the safety device is in the locked state.

[0049] Figure 24 for Figure 23 A schematic diagram of the cross-sectional structure of the penis;

[0050] Figure 25 for Figure 24 A schematic diagram of the KK cross-sectional structure.

[0051] The markings in the diagram are as follows: 1. Main sleeve, 2. Axial limiting groove, 3. Safety device, 4. Limiting pin, 5. Safety groove, 6. Relief notch, 7. Front rotating ring, 8. Rear safety ring, 9. Inner step, 10. Outer step, 11. Ring groove, 12. Unlocking positioning hole, 13. Locking positioning hole, 14. Positioning pin, 15. Silencing sleeve assembly, 16. Pin tube sleeve, 17. Firing pin sleeve, 18. Movable sleeve, 19. Return spring, 20. Firing pin body, 21. Protective sleeve, 22. Firing spring, 23. Brake pin, 24. Connecting handle, 25. Grip, 26. Front sleeve, 27. Rear sleeve. Detailed Implementation

[0052] The present invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0053] Example 1

[0054] like Figure 1-16 As shown, this embodiment provides a safety mechanism for an axial nail gun. This safety mechanism includes a main sleeve 1, which comprises a front sleeve 26 and a rear sleeve 27. The outer diameter of the front sleeve 26 is larger than that of the rear sleeve 27. An outer step 10 is provided between the front sleeve 26 and the rear sleeve 27. The rear sleeve 27 is provided with an axial limiting groove 2, and a limiting pin 4 penetrating the firing pin sleeve 17 and the firing pin body 20 is provided within the axial limiting groove 2. Crucially, the main sleeve 1 has a safety device 3 at the front end of the axial limiting groove 2, which can rotate around the main sleeve 1 to achieve a locked or unlocked state for the limiting pin 4. In the locked state, the limiting pin 4 is located at the front end of the axial limiting groove 2 and is locked by the safety groove 5 of the safety device 3. At this time, the limiting pin 4 is locked by the safety device 3 at the front end of the axial limiting groove 2 and cannot move. Alternatively, in the unlocked state, the limiting pin 4 is unlocked in the clearance notch 6 between the axial limiting groove 2 and the safety device 3, at which time the limiting pin 4 can move within the axial limiting groove 2. Those skilled in the art will understand that the front end of the aforementioned axial limiting groove 2 refers to the connection point between the front sleeve 26 and the rear sleeve 27.

[0055] In this embodiment, the safety device 3 can be rotated to switch between a locked and unlocked state. When a dud is encountered, simply rotating the safety device 3 to the locked state will lock the limiting pin 4, firing pin body 20, braking pin 23, and firing pin sleeve 17, preventing them from moving. At this point, regardless of how the casing is ejected, the integrated nail cannot be detonated again, ensuring safety during dud ejection. After ejection, simply rotating the safety device 3 to the unlocked state will release the locking of the limiting pin 4. At this point, the limiting pin 4, firing pin body 20, braking pin 23, and firing pin sleeve 17 can all move normally, allowing the nail gun to fire the nail cartridge normally.

[0056] According to a preferred embodiment of this example, such as Figure 1-12 As shown, the safety groove 5 and the clearance notch 6 are symmetrically formed on the side wall of the safety device 3, and the safety groove 5 and the clearance notch 6 are connected. The width of the clearance notch 6 is equal to or slightly larger than the width of the axial limiting groove 2. In the locked state, the clearance notch 6 is misaligned with the axial limiting groove 2, and the clearance notch 6 and the axial limiting groove 2 are not connected. At this time, both ends of the limiting pin 4 are locked to the front end of the axial limiting groove 2 by the safety groove 5, and the limiting pin 4 cannot move within the axial limiting groove 2. In the unlocked state, the clearance notch 6 is connected to the axial limiting groove 2. At this time, the safety groove 5 releases the locking of the limiting pin 4, and the limiting pin 4 can move within the axial limiting groove 2.

[0057] It should be noted that this embodiment does not limit the specific structure of the safety device 3. Any structural component that can cooperate with the limit pin 4 and achieve the above functions is acceptable.

[0058] This embodiment also provides a nail gun using the above-described safety mechanism, such as... Figure 17-19 As shown, the nail gun may also include a silencer sleeve assembly 15, a nail tube sleeve 16, a firing pin sleeve 17, a movable sleeve 18, a return spring 19, a firing pin body 20, a protective sleeve 21, a firing spring 22, a connecting handle 24, a grip 25, a braking pin 23, and other structural components. The structure, position, and connection relationship of the aforementioned components are all existing conventional technologies and will not be described in detail.

[0059] The implementation principle of this embodiment is as follows:

[0060] When the nail gun encounters a dud and needs to eject, the safety device 3 is controlled to rotate to the locked position, such as... Figure 1-3 As shown in Figures 23-25, the clearance notch 6 is misaligned with the axial limiting groove 2. At this time, the safety device 3 locks the limiting pin 4 to the front end of the axial limiting groove 2 through the safety groove 5. Correspondingly, the firing pin body 20, the braking pin 23, and the firing pin sleeve 17 are all locked and cannot move. The braking pin 23 cannot contact the firing surface, and the firing pin cannot be released. At this time, regardless of the method of ejection, the integral nail inside the nail tube cannot be detonated again, ensuring the safety of the dud ejection and avoiding the risk of injury. After the dud ejection is completed, the safety device 3 is rotated to the unlocked state, as shown in Figure 23-25. Figure 4-6 As shown in Figures 20-22, the clearance notch 6 is connected to the axial limiting groove 2. At this time, the safety device 3 releases the lock on the limiting pin 4, and the limiting pin 4, the firing pin body 20, the braking pin 23, and the firing pin sleeve 17 can all move. The nail gun can fire the nail cartridge normally, realizing the normal operation of the nail gun.

[0061] Example 2

[0062] This embodiment further optimizes the safety and security structure based on Embodiment 1.

[0063] like Figure 7-12As shown, the safety device 3 includes an integrally formed front rotating ring 7 and a rear safety ring 8, which are located on the front sleeve 26 and the rear sleeve 27, respectively. An inner step 9, adapted to the outer step 10 on the main sleeve 1, is provided between the front rotating ring 7 and the rear safety ring 8. During installation, the safety device 3 can be fitted onto the main sleeve 1 from the rear end of the rear sleeve 27. Under the limiting action of the outer step 10 and the inner step 9, the axial forward movement of the safety device 3 is restricted, preventing it from falling out of the front sleeve 26, thus ensuring better stability of the safety device 3 on the main sleeve 1. The outer diameter of the front rotating ring 7 is larger than the outer diameter of the rear safety ring 8. An outer step 10 is formed between the front rotating ring 7 and the rear safety ring 8. The outer diameter of the rear safety ring 8 is adapted to the inner diameter of the protective sleeve 21 on the nail gun. Through the outer step 10 between the rear safety ring 8 and the front rotating ring 7 and the rear safety ring 8, the protective sleeve 21 can be limited, thereby ensuring that the protective sleeve 21 is stably positioned between the safety device 3 and the connecting handle 24.

[0064] Furthermore, the safety groove 5 is formed on the rear safety ring 8, and the clearance notch 6 is formed on the end face of the rear safety ring 8 and located at one end of the safety groove 5. After the nail gun is assembled, the rear safety ring 8 and its safety groove 5 and clearance notch 6 are all located inside the protective sleeve 21.

[0065] According to a preferred embodiment of this example, such as Figure 7-12 As shown, the front rotating ring 7 can be a conical structure, a curved surface structure, a ring structure, or a combination of conical and ring structures, and the rear safety ring 8 can be a ring structure. It has the advantages of conforming to human hand ergonomics, easy operation, and beautiful appearance.

[0066] Example 3

[0067] This embodiment further optimizes the safety and security structure based on Embodiment 2.

[0068] like Figure 1-16 As shown, the rear end of the front sleeve 26 is provided with an annular groove 11. The front rotating ring 7 is fixed with a positioning pin 14 whose end extends into the annular groove 11 through a threaded connection structure. The positioning pin 14 extends into the annular groove 11 through its end, which plays a role in rotating and guiding the safety device 3, so that the safety device 3 can only rotate radially on the main sleeve 1 and cannot move axially.

[0069] According to a preferred embodiment of this example, such as Figure 1-16As shown, the end of the positioning pin 14 is provided with a retractable ball, and the bottom of the annular groove 11 is provided with a locking positioning hole 13 and an unlocking positioning hole 12 adapted to the retractable ball. Both the locking positioning hole 13 and the unlocking positioning hole 12 are hemispherical or conical holes. Under the drive of the safety device 3, the positioning pin 14 can slide smoothly between the locking positioning hole 13 and the unlocking positioning hole 12; and when the safety device 3 is in the locked state, the retractable ball is located in the locking positioning hole 13. At this time, the locking positioning hole 13 and the retractable ball cooperate to position the safety device 3, so that the safety device 3 cannot rotate freely without the action of external force, thereby ensuring a stable and reliable locking effect. When the safety device 3 is in the unlocked state, the retractable ball is located in the unlocking positioning hole 12. At this time, the unlocking positioning hole 12 and the retractable ball cooperate to position the safety device 3, so that the safety device 3 cannot rotate freely without the action of external force, thereby ensuring a stable and reliable unlocking effect. Of course, the above-mentioned positioning structure is the preferred embodiment, and an equivalent positioning structure can be used instead in actual applications.

[0070] Furthermore, the number of the aforementioned positioning pins 14 is at least one, but considering the structure, cost, and stability, it is preferable that the number of positioning pins 14 is two and symmetrically fixed on the front rotating ring 7. Correspondingly, the number of locking positioning holes 13 and the number of unlocking positioning holes 12 are the same as the number of positioning pins 14.

[0071] The implementation principle of this embodiment is as follows:

[0072] When the nail gun encounters a dud and needs to eject, the safety device 3 is controlled to rotate to the locked position, such as... Figure 1-3 As shown in Figures 23-25, the clearance notch 6 is misaligned with the axial limiting groove 2. At this time, the safety device 3 locks the limiting pin 4 to the front end of the axial limiting groove 2 through the safety groove 5. The retractable ball on the positioning pin 14 is located in the locking positioning hole 13, forming a locking position for the safety device 3, preventing the safety device 3 from rotating freely without external force, thus achieving a stable and reliable locking effect. Correspondingly, the firing pin body 20, the braking pin 23, and the firing pin sleeve 17 are all locked and cannot move. The braking pin 23 cannot contact the firing surface, and the firing pin cannot be released. At this time, regardless of the method of ejection, the integral nail in the nail tube cannot be detonated again, ensuring the safety of the unexploded ordnance during ejection and avoiding the risk of injury. After the unexploded ordnance is ejected, the safety device 3 is controlled to rotate to the unlocked state, as shown in Figure 23-25. Figure 4-6As shown in Figures 20-22, the clearance notch 6 is connected to the axial limiting groove 2. At this time, the safety device 3 releases the lock on the limiting pin 4, and the retractable ball on the positioning pin 14 is located in the unlocking positioning hole 12, forming an unlocking positioning for the safety device 3, preventing the safety device 3 from rotating freely without external force, thereby achieving a stable and reliable unlocking effect. Correspondingly, the limiting pin 4, the firing pin body 20, the braking pin 23, and the firing pin sleeve 17 can all move, and the nail gun can normally fire the nail cartridge, realizing the normal operation of the nail gun.

[0073] The above description is only a specific embodiment of the present utility model. Any feature disclosed in this specification may be replaced by other equivalent or similar features unless otherwise specified. All features or steps in all methods or processes disclosed may be combined in any way except for mutually exclusive features and / or steps.

Claims

1. A safety lock structure for an axial nail gun, comprising a main sleeve (1), characterized in that: The main sleeve (1) is provided with a safety device (3) at the front end of the axial limiting groove (2), which can rotate around the main sleeve (1) to lock or unlock the limiting pin (4). The limiting pin (4) is located at the front end of the axial limiting groove (2) and is locked by the safety groove (5) of the safety device (3), or the limiting pin (4) is unlocked in the clearance notch (6) of the axial limiting groove (2) and the safety device (3).

2. The safety safety structure for an axial nail gun according to claim 1, characterized in that: The safety groove (5) and the clearance notch (6) are symmetrically opened on the side wall of the safety device (3). In the locked state, the clearance notch (6) is misaligned with the axial limiting groove (2), and the two ends of the limiting pin (4) are locked by the safety groove (5) at the front end of the axial limiting groove (2). In the unlocked state, the clearance notch (6) communicates with the axial limiting groove (2), the safety groove (5) releases the locking of the limiting pin (4), and the limiting pin (4) can move in the axial limiting groove (2).

3. The safety safety structure for an axial nail gun according to claim 2, characterized in that: The safety device (3) includes an integrally formed front rotating ring (7) and a rear safety ring (8), with a safety groove (5) formed on the rear safety ring (8) and a clearance notch (6) formed on the end face of the rear safety ring (8) and located at one end of the safety groove (5).

4. The safety safety structure for an axial nail gun according to claim 3, characterized in that: The outer diameter of the front rotating ring (7) is larger than the outer diameter of the rear safety ring (8).

5. The safety mechanism for an axial nail gun according to claim 3, characterized in that: The front rotating ring (7) is a conical structure, a curved surface structure, a ring structure, or a combination of conical and ring structures, and the rear safety ring (8) is a ring structure.

6. A safety mechanism for an axial nail gun according to any one of claims 3-5, characterized in that: The main sleeve (1) includes a front sleeve (26) and a rear sleeve (27). The outer diameter of the front sleeve (26) is larger than that of the rear sleeve (27). There is an outer step (10) between the front sleeve (26) and the rear sleeve (27). An axial limiting groove (2) is located on the rear sleeve (27). The front end of the axial limiting groove (2) refers to the connection between the front sleeve (26) and the rear sleeve (27). An inner step (9) adapted to the outer step (10) is provided between the front rotating ring (7) and the rear safety ring (8). The front rotating ring (7) and the rear safety ring (8) are located on the front sleeve (26) and the rear sleeve (27), respectively.

7. A safety safety structure for an axial nail gun according to claim 6, characterized in that: The rear end of the front sleeve (26) is provided with an annular groove (11), and a positioning pin (14) with its end extending into the annular groove (11) is fixed on the front rotating ring (7).

8. The safety safety structure for an axial nail gun according to claim 7, characterized in that: The end of the positioning pin (14) is provided with a retractable ball. The bottom of the annular groove (11) is provided with a locking positioning hole (13) and an unlocking positioning hole (12) that are adapted to the retractable ball. Under the drive of the safety device (3), the positioning pin (14) can slide between the locking positioning hole (13) and the unlocking positioning hole (12). In the locked state, the retractable ball is located in the locking positioning hole (13), and the locking positioning hole (13) and the retractable ball cooperate to position the safety device (3). In the unlocked state, the retractable ball is located in the unlocking positioning hole (12), and the unlocking positioning hole (12) and the retractable ball cooperate to position the safety device (3).

9. A safety safety structure for an axial nail gun according to claim 8, characterized in that: The positioning pins (14) are symmetrically fixed on the front rotating ring (7) through a threaded connection structure. The number of locking positioning holes (13) and unlocking positioning holes (12) are the same as the number of positioning pins (14).

10. A safety safety structure for an axial nail gun according to claim 8, characterized in that: Both the locking positioning hole (13) and the unlocking positioning hole (12) are hemispherical or conical.

Images