Firing structure of coil nail gun

Abstract

The utility model provides a percussion structure of a coil nail gun, belongs to the field of nailing equipment, and solves the problem that the axis of a trigger valve is difficult to reset after the trigger valve is started by the trigger. The nail gun comprises a nail gun body, a sliding rod and a nail gun trigger, a first trigger valve is arranged behind the nail gun trigger, a first guide bearing is installed in the first trigger valve, a first axis is installed on the first guide bearing, a second trigger valve is arranged above the first trigger valve, a connecting channel is formed between the first trigger valve and the second trigger valve, a second guide bearing is installed in the second trigger valve, and a second axis and a third axis are installed in the second guide bearing. A connecting rod is fixed to the third axis, the connecting rod is connected with a sliding rod, an adjusting nut is installed on the connecting rod, O-shaped rings are installed on the first axis and the second axis, and a first spring is installed between the sliding rod and the nail gun body. The trigger valve has the advantages that the second trigger valve is additionally arranged, the first trigger valve and the second trigger valve are connected, gas in the second trigger valve is sent back to the first trigger valve, the first trigger valve is reset, and faults are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of nailing equipment and relates to a coil nail gun structure, in particular to a firing structure of the coil nail gun. Background Art

[0002] Coil nail guns can be used to create pallets, large wooden packaging boxes, fences, connect timber structures in houses, wooden furniture, and other wooden structures, providing fast nailing and improving nailing efficiency. Nails from the cartridge are fed into the gun cover slot. The pressure difference between compressed air and atmospheric pressure is then used to trigger a switch to reciprocate the firing pin piston within the cylinder. When the firing pin emerges from the gun nozzle, the nail is driven out.

[0003] In existing coil nail guns, after the trigger is pulled, the trigger pushes the axis of the trigger valve located behind the trigger to move toward the air inlet pipe. The movement of the axis compresses the air, so that the compressed air pushes the firing pin of the nail gun to move, thereby firing the fastener. However, the trigger valve needs to rely on the air pressure in the air inlet pipe to rebound so that compressed air can be pushed into the air inlet pipe through the trigger valve again to push the piston to move. After the trigger valve pushes the piston to move, the trigger valve may not return to its original position due to the pressure difference between the inside and outside of the trigger valve, affecting normal operation. Utility Model Content

[0004] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide a coil nail gun firing structure with a self-resetting trigger valve.

[0005] The utility model can be achieved through the following technical solutions: a firing structure of a coil nail gun, comprising a nail gun body, a slide rod and a nail gun trigger, a trigger valve 1 installed in the nail gun body, the trigger valve 1 is located behind the nail gun trigger, a guide 1 is provided in the trigger valve 1, an axis 1 is installed in the guide 1, a trigger valve 2 is provided above the trigger valve 1, a connecting channel is provided between the trigger valve 2 and the trigger valve 1, a guide 2 is provided in the trigger valve 2, an axis 2 and an axis 3 are installed in the guide 2, the axis 2 is close to the connecting channel, the axis 3 is connected to a connecting rod, O-rings are installed on the axis 1 and the axis 2, the connecting rod is connected to the slide rod, and a spring 1 is provided between the slide rod and the nail gun body.

[0006] In the firing structure of the coil nail gun, the axis 3 is provided with a groove 1, the guide 2 is provided with a groove 2, and the groove 1 and the groove 2 are connected by a corrugated dust cover.

[0007] In the firing structure of the above-mentioned coil nail gun, the guide 1 and the trigger valve 1 are connected via a thread.

[0008] In the firing structure of the coil nail gun described above, a partition is installed between the first guide and the nail gun body, and the partition abuts against the second guide.

[0009] In the firing structure of the coil nail gun, a vent hole is provided on an outer wall of the guide.

[0010] In the firing structure of the above-mentioned coil nail gun, a limiting nut is provided on the connecting rod, a connecting hole is provided on the sliding rod, a flange is provided on the connecting hole, and the flange abuts against the limiting nut.

[0011] In the firing structure of the coil nail gun, a spring pin is provided on the nail gun body, and a limiting portion is provided on the slide rod, and the limiting portion is in contact with the spring pin.

[0012] In the firing structure of the above-mentioned coil nail gun, a second spring is provided between the second axis and the second trigger valve.

[0013] In the firing structure of the above-mentioned coil nail gun, a guide blade is provided on the axis 1.

[0014] Compared with the prior art, the advantages of the present invention are: a trigger valve 2 is added, and the air pressure between the trigger valve 1 and the air inlet pipe is adjusted by the trigger valve 2. After the nail gun shoots a nail, the reciprocating motion of the slide rod pushes the axis 2 to move toward the connecting channel, and the air in the trigger valve 2 is pushed into the trigger valve 1 to drive the axis 1 to reset, thereby reducing the occurrence of trigger valve 1 failure and facilitating the nail gun trigger to shoot the nail again through the trigger valve 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the firing structure of the coil nail gun;

[0016] Figure 2 It is a cross-sectional view of the firing structure of the coil nail gun;

[0017] Figure 3 yes Figure 2 Enlarged view of inner circle A;

[0018] Among them, 1. Nail gun body; 11. Trigger valve 1; 111. Guide 1; 111a. Vent; 112. Axis 1; 112a. Guide vane; 113. Threaded connection; 12. Trigger valve 2; 121. Guide 2; 121a. Groove 2; 122. Axis 2; 123. Axis 3; 123a. Groove 1; 13. Connecting channel; 14. Spring pin; 2. Slide rod; 21. Connecting hole; 211. Flanging; 22. Limiting part; 3. Nail gun trigger; 4. Connecting rod; 5. O-ring; 6. Spring 1; 7. Corrugated dust cover; 8. Partition; 9. Limiting nut; 10. Spring 2. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figures 1 to 3 As shown, the present invention can be implemented through the following embodiments: a firing structure of a coil nail gun, comprising a nail gun body 1, a slide rod 2 and a nail gun trigger 3, a trigger valve 11 is installed in the nail gun body 1, the trigger valve 11 is located behind the nail gun trigger 3, a guide 111 is provided in the trigger valve 11, an axis 112 is installed in the guide 111, a trigger valve 2 12 is provided above the trigger valve 11, a connecting channel 13 is provided between the trigger valve 2 12 and the trigger valve 11, a guide 2 121 is provided in the trigger valve 2 12, an axis 2 122 and an axis 3 123 are installed in the guide 2 121, the axis 2 122 is close to the connecting channel 13, the axis 3 123 is connected to the connecting rod 4, the axis 1 112 and the axis 2 122 are installed, the connecting rod 4 is connected to the slide rod 2, and a spring 6 is provided between the slide rod 2 and the nail gun body 1.

[0021] The guide 111 and the guide 2 121 are used to guide and limit the movement direction of the axis 1 12, the axis 2 122 and the axis 3 123, to prevent the axis 1 12, the axis 2 122 and the axis 3 123 from deviating during movement, resulting in reduced air tightness, and to reduce the wear caused by friction between the axis 1 12, the axis 2 122 and the axis 3 123 and the nail gun body; the connecting channel 13 is used to connect the trigger valve 1 11 and the trigger valve 2 12, so that the trigger valve 1 When trigger valve 11 is working, some air enters trigger valve 2 12, and when it is reset, the air in trigger valve 2 12 is sent back to trigger valve 1 11; connecting rod 4 connects axis 3 123 and slide rod 2, so that the slide rod can drive axis 3 123 to move, and O-ring 5 improves the sealing between axis 1 112 and axis 2 122 and guide 1 111 and guide 2 121, so that axis 1 112 and axis 2 122 can push the air; spring 1 6 is used to reset slide rod 2.

[0022] like Figure 2 and Figure 3 As shown, the third axis 123 defines a groove 123a, and the second guide 121 defines a groove 121a. The groove 123a and the second groove 121a are connected by a corrugated dust cover 7. The groove 123a and the second groove 121a are used to secure the corrugated dust cover 7 between the third axis 123 and the second guide 121 by leveraging the elasticity of the corrugated dust cover 7. This prevents foreign matter from entering between the third axis 123 and the second guide 121 when the third axis 123 slides, thereby preventing wear of the third axis 123 and the second guide 121. The provision of the corrugated dust cover 7 ensures the sealing of the second trigger valve 12.

[0023] like Figure 2 and Figure 3As shown, guide 111 and trigger valve 11 are connected by threaded connection 113. The threaded connection between guide 111 and trigger valve 11 improves the stability between guide 111 and trigger valve 11 and reduces the possibility of guide 111 falling off from trigger valve 11 due to severe impact.

[0024] like Figures 1 to 3 As shown, a partition 8 is installed between the guide 111 and the nail gun body, and the partition 8 abuts the guide 2 121. The guide 111 fixes the partition 8 on the nail gun body 1, and the partition 8 abuts the guide 2 121 to prevent the guide 2 121 from separating from the trigger valve 2 12.

[0025] like Figure 2 and Figure 3 As shown, a vent hole 111a is formed on the outer wall of the guide 111. The vent hole 111a is used to allow air fed from the trigger valve 2 12 through the connecting channel 13 to enter the guide 111, thereby accelerating the return speed of the axis 112 and improving the working efficiency of the coil nail gun.

[0026] like Figure 2 and Figure 3 As shown, a limit nut is provided on the connecting rod 4, and a connecting hole 21 is provided on the sliding rod 2. A flange 211 is provided on the connecting hole 21, and the flange 211 abuts against the limit nut. The limit nut is used to adjust the position of the sliding rod 2 on the connecting rod 4, facilitating control of the travel of the sliding rod 2 and preventing the sliding rod 2 from separating from the connecting rod 4. The connecting hole 21 and flange 211 cooperate to guide the displacement of the sliding rod on the connecting rod 4.

[0027] like Figure 1 and Figure 3 As shown, the nail gun body is provided with a spring pin 14, and the slide rod 2 is provided with a limit portion 22, which contacts the spring pin 14. The limit portion 22 cooperates with the spring pin 14 so that the total travel of the slide rod is limited by the limit portion 22, preventing the slide rod 2 from moving too far and causing damage to the nail gun body 1. The spring pin 14 acts as an impact absorber, preventing the slide rod 2 from being damaged by excessive impact force.

[0028] like Figure 2 and Figure 3 As shown, a spring 2 10 is provided between the second axis 122 and the second trigger valve 12. The spring 2 10 is used to reset the second axis 122 so that the second axis 122 is reset after air is sent into the first trigger valve 11.

[0029] like Figure 2 and Figure 3As shown, guide vanes 112a are provided on the shaft 112. The guide vanes 112a facilitate the passage of air, allowing the compressed air to push the end of the O-ring 5 to push the shaft 112 back to its original position, thereby reducing the frictional resistance generated by the movement of the shaft 112 and lowering the air pressure required to reset the shaft 112.

[0030] The working principle of the utility model is as follows: when the nail gun trigger 3 is pulled, the nail gun trigger 3 pushes the axis 112 of the trigger valve 11 to move, and the axis 112 moves in the guide 111. When the O-ring 5 is squeezed into the guide 111, the air in the trigger valve 11 is compressed, and the compressed air enters the trigger valve 2 12 and the nail gun body 1, causing the axis 2 122 to move left. After the compressed air is input into the nail gun body 1, the nail is fired. When the nail is retracted, the slide rod 2 on the nail gun body 1 moves right, and the slide rod 2 pushes the axis 3 12 through the connecting rod 4. 3 moves right, axis three 123 moves right and presses against axis two 122, further pushing axis two 122 to the right, axis two 122 pushes air from connecting channel 13 into trigger valve one 11, and then compressed air enters through vent hole 111a on guide one 111 and pushes axis one 112 away from guide one 111, so that axis one 112 is reset, and slide rod 2 is reset under the action of spring one 6. The connecting hole 21 of slide rod 2 pushes the limit nut, driving axis three 123 to reset, and spring two 10 drives axis two 122 to reset.

[0031] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0032] Although various terms are used in this document, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A firing structure of a coil nail gun, comprising a nail gun body (1), a slide rod (2) and a nail gun trigger (3), wherein a trigger valve (11) is installed in the nail gun body (1), and the trigger valve (11) is located behind the nail gun trigger (3), and is characterized in that: A guide bearing 1 (111) is provided in the trigger valve 1 (11), an axis 1 (112) is installed in the guide bearing 1 (111), a trigger valve 2 (12) is provided above the trigger valve 1 (11), a connecting channel (13) is provided between the trigger valve 2 (12) and the trigger valve 1 (11), a guide bearing 2 (121) is provided in the trigger valve 2 (12), an axis 2 (122) and an axis 3 (123) are installed in the guide bearing 2 (121), the axis 2 (122) is close to the connecting channel (13), the axis 3 (123) is connected to a connecting rod (4), an O-ring (5) is installed on the axis 1 (112) and the axis 2 (122), a slide rod (2) is connected to the connecting rod (4), and a spring 1 (6) is provided between the slide rod (2) and the nail gun body (1).

2. The firing structure of a coil nail gun according to claim 1, characterized in that: A groove one (123a) is provided on the axis three (123), a groove two (121a) is provided on the guide two (121), and the groove one (123a) and the groove two (121a) are connected via a corrugated dust cover (7).

3. The firing structure of the coil nail gun according to claim 1, characterized in that: The guide 1 (111) and the trigger valve 1 (11) are connected via a threaded connection (113).

4. The firing structure of the coil nail gun according to claim 1, characterized in that: A partition (8) is installed between the guide 1 (111) and the nail gun body, and the partition (8) abuts against the guide 2 (121).

5. The firing structure of the coil nail gun according to claim 1, characterized in that: A vent hole (111a) is provided on the outer wall of the guide (111).

6. The firing structure of a coil nail gun according to claim 1, characterized in that: A limiting nut (9) is provided on the connecting rod (4), a connecting hole (21) is provided on the sliding rod (2), a flange (211) is provided on the connecting hole (21), and the flange (211) abuts against the limiting nut (9).

7. The firing structure of a coil nail gun according to claim 1, characterized in that: A spring pin (14) is provided on the nail gun body (1), and a limiting portion (22) is provided on the slide rod (2), wherein the limiting portion (22) is in contact with the spring pin (14).

8. The firing structure of a coil nail gun according to claim 1, characterized in that: A second spring (10) is provided between the second axis (122) and the second trigger valve (12).

9. The firing structure of a coil nail gun according to claim 1, characterized in that: A guide vane (112a) is provided on the first axis (112).

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