Anti-sticking gun nozzle mechanism

Abstract

The utility model relates to nail gun technology field especially a kind of gun nozzle mechanism of anti-sticking nail, comprising: gun nozzle shell and the gun nozzle slidingly connected in the gun nozzle shell;The lower portion of the gun nozzle shell is fixedly installed with nail cover, the upper portion of the gun nozzle is provided with telescopic guide assembly connected with casing;Positioning tongue that the gun nail cap is positioned is shaped at the nail inlet, the utility model can be positioned accurately to the gun nail cap that has entered gun nozzle by the design of positioning tongue, while its bottom forms effective barrier to the gun nail to be entered into gun nozzle, ensure that only one gun nail enters working position each time, this double positioning mechanism makes gun nail be able to be stably supported above positioning portion, completely eliminates the shaking phenomenon, so long as gun nail successfully enters gun nozzle, the problem of sticking nail caused by deviation does not occur, this structure not only significantly reduces the sticking nail risk of different manufacturers' products, also greatly improves the service life of gun nail.

Description

Technical Field

[0001] This utility model relates to the field of nail gun technology, and in particular to a nozzle mechanism for preventing nail jamming. Background Technology

[0002] A nail gun is a tool used to quickly and accurately drive nails into materials; it is also called a nail gun or pneumatic nail gun. It typically operates using pneumatic, electric, or hydraulic power and is widely used in woodworking, construction, and renovation.

[0003] In existing nail gun devices, the nail cannot be effectively fixed inside the nozzle, causing the nail's position to fluctuate and its path to be inaccurately controlled. This unstable positioning directly leads to frequent nail jamming problems, severely impacting work efficiency. Furthermore, due to inaccurate positioning, the nail needle often fails to strike the nail's center precisely during impact, resulting in uneven force distribution, accelerating nail wear, and causing the nail head to easily deform into a round or conical shape, significantly shortening the nail's lifespan.

[0004] Based on this, in order to reduce the problem of nail jamming and improve the stability of nails, we propose an anti-nailing nozzle mechanism. Utility Model Content

[0005] The purpose of this invention is to solve the shortcomings of existing technologies, such as the inability to effectively fix the nail inside the nozzle, resulting in the nail's position fluctuating up and down, and to propose an anti-nailing nozzle mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a nozzle mechanism to prevent nail jamming, including:

[0008] A nozzle housing and a nozzle slidably connected in the nozzle housing;

[0009] A nail cover is fixedly installed below the nozzle housing, and a telescopic guide assembly connected to the housing is provided above the nozzle.

[0010] The nozzle has a nail inlet formed at its rear to avoid the nail, and a positioning tongue is formed at the nail inlet to position the nail head.

[0011] Furthermore, a sliding position is provided above the nozzle shell, and the telescopic guide assembly is slidably connected to the sliding position. A needle hole for the needle to pass through is provided at the rear of the nozzle shell.

[0012] Furthermore, the telescopic guide assembly includes a movable plate and an elastic element;

[0013] The movable plate slides in the sliding position, and the elastic element connects the movable plate and the housing.

[0014] Furthermore, at least one guide post is formed above the sliding position;

[0015] The movable plate has a groove on its end face that is adapted to the guide post. A pressure plate is detachably connected above the guide post and stops above the movable plate.

[0016] Furthermore, the nozzle includes a nozzle end with a nail outlet;

[0017] An abutment portion and a positioning portion are formed on the end face of the nozzle. An arc-shaped groove adapted to the nail head is formed on the upper end of the positioning portion. The nail inlet is formed on the positioning portion. The abutment portion abuts against the moving plate.

[0018] Furthermore, a positioning element is installed above the contact portion, and the nozzle shell has a positioning opening at the sliding position, into which the positioning element is inserted.

[0019] Furthermore, the positioning tongue includes two arc-shaped portions formed at the nail inlet, and the arc-shaped portions and the arc-shaped channel are smoothly transitioned;

[0020] The two arc-shaped portions respectively fit into the nail head of the gun nail so that the axis of the gun nail entering the nozzle coincides with the axis of the nail exit.

[0021] Furthermore, a positioning arc surface is formed on the lower side of the arc-shaped portion, and the positioning arc surfaces on the two arc-shaped portions fit into the nail head of the nail below to stop and limit the nail to be inserted into the nozzle.

[0022] Furthermore, the positioning part is also formed with a guide slope at the nail inlet, and the guide slope is inclined toward the side away from the mouth end.

[0023] Furthermore, a magnetic component is fixedly installed on the side of the movable plate, and a sensor is installed inside the housing opposite to the magnetic component.

[0024] The present invention proposes an anti-nailing nozzle mechanism with the following advantages: The positioning tongue design accurately positions the nail head of the nail that has entered the nozzle, while its bottom effectively blocks nails that are about to enter the nozzle, ensuring that only one nail enters the working position at a time. This dual positioning mechanism allows the nail to be stably held above the positioning part, completely eliminating shaking. Thus, as long as the nail successfully enters the nozzle, there will be no nail jamming due to deviation. Furthermore, after positioning, the needle always precisely strikes the center of the nail. This structure not only significantly reduces the risk of nail jamming in products from different manufacturers but also greatly extends the service life of the nail, resulting in stable and reliable overall performance. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a schematic diagram of the structure of this utility model after the magazine has been removed;

[0027] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0028] Figure 4 This is a schematic diagram of the telescopic guide assembly structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the nozzle structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the positioning tongue structure of this utility model.

[0031] In the diagram: 1. Nozzle housing; 11. Sliding part; 12. Needle hole; 13. Guide post; 14. Positioning port; 2. Nozzle; 20. Nail inlet; 21. Positioning tongue; 211. Arc-shaped part; 212. Positioning arc surface; 22. Nozzle end; 23. Contact part; 24. Positioning part; 25. Positioning component; 26. Guide slope; 3. Nail cover; 4. Telescopic guide assembly; 41. Moving plate; 42. Elastic component; 43. Slide groove; 44. Pressure plate; 5. Nail; 6. Needle; 7. Magnetic component; 71. Sensor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Reference Figure 1-6As one embodiment of this utility model, a nail gun nozzle mechanism for preventing nail jamming is disclosed. Specifically, the nozzle structure includes a nozzle shell 1 and a nozzle 2 slidably connected in the nozzle shell 1. Of course, in this embodiment, the nozzle shell 1 is fixedly installed in the housing of the nail gun. No other structures are improved in this embodiment, so the housing is not shown.

[0034] A nail cover 3 is fixedly installed below the nozzle housing 1. The nail cover 3 is used to connect the magazine. As those skilled in the art know, the magazine is used to fill the nails 5 and to feed the nails 5 into the nozzle 2. A telescopic guide assembly 4 connected to the housing is provided above the nozzle 2.

[0035] The nozzle 2 has an insertion port 20 formed behind it to avoid the nail 5, and a positioning tongue 21 is formed at the insertion port 20 to position the nail head of the nail 5.

[0036] In some embodiments, a sliding position 11 is provided above the nozzle shell 1 in this invention, and the telescopic guide assembly 4 is slidably connected to the sliding position 11. A needle hole 12 for the needle 6 to pass through is provided at the rear of the nozzle shell 1. Of course, the needle 6 is used to connect to a drive structure, such as a motor and a cylinder structure, and is used to trigger the contact with the nail 5 when released, so as to shoot the nail 5 out from the inside of the nozzle 2. This structure is only a conventional design method for those skilled in the art, and will not be described in detail here.

[0037] Furthermore, the telescopic guide assembly 4 includes a movable plate 41 and an elastic element 42. In this embodiment, the elastic element 42 can be configured as a compression spring. Preferably, the movable plate 41 in this embodiment can be configured as a rectangular plate. Of course, the sliding position 11 adopts an arc-shaped structure design to ensure the sliding stability of the movable plate 41. The movable plate 41 slides in the sliding position 11, and the elastic element 42 is connected between the movable plate 41 and the housing.

[0038] Based on the above embodiments, in order to further ensure the sliding guidance of the movable plate 41, at least one guide post 13 can be formed above the sliding position 11. Preferably, in this embodiment, the guide post 13 can be configured as two.

[0039] The end face of the movable plate 41 is provided with a sliding groove 43 adapted to the guide post 13, and a pressure plate 44 is detachably connected above the guide post 13, the pressure plate 44 being stopped above the movable plate 41.

[0040] Specifically, in this embodiment, the pressure plate 44 can be connected to the guide post 13 by fasteners such as bolts. The design of the pressure plate 44 is to guide the entire moving plate 41 to slide. Of course, since the pressure plate 44 adopts a detachable connection design, it also further enhances the convenience of assembly, inspection and maintenance.

[0041] In some embodiments, the nozzle 2 of this invention includes a nozzle end 22 with a nail outlet, the diameter of which can be adapted to the outer diameter of the nail head of the nail 5, so as to ensure the stability of the moving position when the nail 5 is fired.

[0042] An abutment portion 23 and a positioning portion 24 are formed on the end face of the nozzle 22. The abutment portion 23 and the positioning portion 24 are arranged opposite each other and both face one side of the abutment portion 23 and the positioning portion 24. An arc-shaped groove adapted to the nail head of the nail 5 is formed at the upper end of the positioning portion 24. The nail inlet 20 is formed on the positioning portion 24. The abutment portion 23 abuts against the moving plate 41.

[0043] In other words, in actual use, the nozzle 2 is first placed against the item to be nailed. At this time, the nozzle 2 is subjected to force and retracts. During the movement of the nozzle 2, the moving plate 41 can be moved by the action of the contact part 23. The moving plate 41 can contact the elastic element 42 to retract and store force, so as to facilitate subsequent actions.

[0044] Based on the above embodiments, in this utility model, a positioning member 25 is also installed above the contact portion 23. The nozzle shell 1 has a positioning port 14 at the sliding position 11. The positioning member 25 is placed in the positioning port 14. That is, in this utility model, the design of the positioning member 25 and the positioning port 14 is used to limit the movement of the nozzle 2 to prevent the nozzle 2 from coming out of the inside of the nozzle shell 1. Preferably, the positioning member 25 in this embodiment can be set as a bolt, and the bolt is threadedly connected to the contact portion 23.

[0045] In an optional embodiment, the positioning tongue 21 of the present invention includes two arc-shaped portions 211 formed on the nail inlet 20. The arc-shaped portions 211 and the arc-shaped channels are smoothly transitioned. That is, the positioning tongue 21 and the positioning portion 24 in this embodiment are integrally formed and are adapted to the arc-shaped portions 211.

[0046] It should be noted that, in order to adapt to the upper side of the nail head of the nail 5 in this embodiment, an arc groove can also be designed on the lower side of the sliding part. Through the cooperation of the arc groove and the two arc parts 211, the nail 5 can be stably supported and positioned.

[0047] The two arc-shaped portions 211 respectively fit into the nail head of the nail 5 so that the nail 5 entering the nozzle 2 and the nail outlet axis coincide.

[0048] Based on the above embodiments, in this embodiment, a positioning arc surface 212 is also formed on the lower side of the arc-shaped portion 211. The positioning arc surfaces 212 on the two arc-shaped portions 211 fit against the nail head of the lower nail 5 to stop and limit the nail 5 to be inserted into the nozzle 2.

[0049] In actual use, when the nozzle 2 comes into contact with the surface of the object to be nailed, the nozzle 2 will move backward and retract. At this time, the contact part 23 on the nozzle 2 will move backward against the moving plate 41. At the same time, the positioning tongue 21 on the positioning part 24 will engage with the nail 5 that has entered the nozzle 2.

[0050] Specifically, the two arc-shaped parts 211 on the positioning tongue 21 will position the nail head on the nail 5 entering the nozzle 2, while the positioning arc surface 212 at the bottom of the positioning tongue 21 will position and block the nail 5 entering the nozzle 2. This design can ensure that the nail 5 entering the nozzle 2 is stably supported above the positioning part 24, avoiding the problem of shaking. As long as the nail 5 can enter the nozzle 2, there will be no risk of deviation and nail jamming. At the same time, after positioning, the needle 6 always hammers the center of the nail 5. This can effectively reduce the risk of nail jamming for products from different manufacturers, and the wear life of the nail 5 will also be greatly improved.

[0051] Furthermore, the positioning part 24 of this utility model is also formed with a guide slope 26 at the nail inlet 20. The guide slope 26 is inclined toward the side away from the nozzle end 22. By adopting the design of the guide slope 26, it is convenient for the nail 5 to be fired, so that it can accurately enter the nail outlet of the nozzle 2.

[0052] Of course, to implement the safety mechanism, a magnetic component 7 is fixedly installed on the side of the moving plate 41 in this utility model, and a sensor 71 is installed inside the housing opposite to the magnetic component 7. That is, when the nail is fired, after the nozzle 2 moves backward, the moving plate 41 drives the magnetic component 7 to move backward until the magnetic component 7 and the sensor 71 are opposite to each other, only then can the main switch of the entire nail gun be triggered, and the nail 6 will move. Otherwise, the nail 6 will not move. This design is to ensure that if the positioning tongue 21 cannot effectively separate the upper and lower nails 5, the moving plate 41 cannot move backward to the correct position so that the magnetic component 7 and the sensor 71 can sense each other. That is, the nail firing action can only be realized when the positioning tongue 21 effectively separates the two nails 5, thus ensuring the stability and reliability of the nail 5 being fired.

[0053] In summary, this utility model, through the design of the positioning tongue 21, can accurately position the nail head of the nail 5 that has entered the nozzle 2. At the same time, its bottom forms an effective barrier against the nails 5 that are about to enter the nozzle 2, ensuring that only one nail 5 enters the working position at a time. This dual positioning mechanism allows the nail 5 to be stably held above the positioning part 24, completely eliminating the shaking phenomenon. Thus, as long as the nail 5 successfully enters the nozzle 2, there will be no nail jamming problem caused by deviation. Moreover, after positioning, the needle 6 always accurately hammers the center position of the nail 5. This structure not only significantly reduces the nail jamming risk of products from different manufacturers, but also greatly improves the service life of the nail 5, and the overall performance is stable and reliable.

[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nozzle mechanism for preventing nail jamming, characterized in that, include: The nozzle housing (1) and the nozzle (2) slidably connected in the nozzle housing (1); A nail cover (3) is fixedly installed below the nozzle shell (1), and a telescopic guide assembly (4) connected to the housing is provided above the nozzle (2). The nozzle (2) has an entry port (20) for avoiding the nail (5) formed at its rear, and a positioning tongue (21) for positioning the nail head of the nail (5) is formed at the entry port (20).

2. The anti-nailing nozzle mechanism according to claim 1, characterized in that: A sliding position (11) is provided above the nozzle shell (1), and the telescopic guide assembly (4) is slidably connected in the sliding position (11). A needle hole (12) for the needle (6) to pass through is provided at the rear of the nozzle shell (1).

3. The anti-nailing nozzle mechanism according to claim 2, characterized in that: The telescopic guide assembly (4) includes a movable plate (41) and an elastic element (42). The movable plate (41) slides in the sliding position (11), and the elastic element (42) is connected between the movable plate (41) and the housing.

4. The anti-nailing nozzle mechanism according to claim 3, characterized in that: At least one guide post (13) is formed above the sliding position (11). The end face of the movable plate (41) is provided with a groove (43) adapted to the guide post (13), and a pressure plate (44) is detachably connected above the guide post (13), the pressure plate (44) being stopped above the movable plate (41).

5. The anti-nailing nozzle mechanism according to claim 3, characterized in that: The nozzle (2) includes a nozzle end (22) with a nail outlet. An abutting part (23) and a positioning part (24) are formed on the end face of the nozzle end (22). An arc-shaped groove adapted to the nail head of the gun nail (5) is formed on the upper end of the positioning part (24). The nail inlet (20) is formed on the positioning part (24). The abutting part (23) and the moving plate (41) abut against each other.

6. The anti-nailing nozzle mechanism according to claim 5, characterized in that: A positioning element (25) is also installed above the contact part (23). The nozzle shell (1) has a positioning port (14) at the sliding position (11). The positioning element (25) is placed into the positioning port (14).

7. The anti-nailing nozzle mechanism according to claim 5, characterized in that: The positioning tongue (21) includes two arc-shaped portions (211) formed in the nail inlet (20), and the arc-shaped portions (211) and the arc-shaped channel are smoothly transitioned; The two arc-shaped portions (211) respectively fit into the nail head of the nail (5) so that the nail (5) entering the nozzle (2) and the nail outlet axis coincide.

8. The anti-nailing nozzle mechanism according to claim 7, characterized in that: A positioning arc surface (212) is also formed on the lower side of the arc-shaped part (211). The positioning arc surfaces (212) on the two arc-shaped parts (211) fit into the nail head of the lower nail (5) to stop and limit the nail (5) to enter the nozzle (2).

9. The anti-nailing nozzle mechanism according to claim 5, characterized in that: The positioning part (24) also has a guide slope (26) formed at the nail inlet (20), the guide slope (26) being inclined toward the side away from the mouth end (22).

10. A nozzle mechanism for preventing nail jamming according to any one of claims 3-9, characterized in that: A magnetic component (7) is fixedly installed on the side of the movable plate (41), and a sensor (71) is installed inside the housing opposite to the magnetic component (7).

Images