A firing mechanism and a hammer-type nail shooter having the firing mechanism

Abstract

The invention discloses a firing mechanism and a hammer-type nail shooter with the firing mechanism, which relates to the field of nail-shooting fastening equipment, and includes a firing pin sleeve, a firing pin and a hammer for firing the firing pin; a resistance spring is arranged between the hammer and the firing pin sleeve. The invention prevents the firing pin from hitting the nail bullet when the nail shooter is in free fall, so that the nail shooter cannot be fired, which not only meets the national standards of my country, but also makes the structure of the firing mechanism simpler, the cost lower, the assembly more convenient, and the stability higher.

Description

Technical Field

[0001] The invention relates to the field of nail-shooting and fastening equipment, and in particular to a firing mechanism and a hammer-type nail-shooting device having the firing mechanism. Background Art

[0002] At present, the firing pins in hammer-type nail shooters produced at home and abroad mostly use eccentric firing, and the firing pin is spherical; when firing is required, the firing pin seat is compressed a certain distance to make the firing mechanism form a locked state, and finally a hammer is used to hammer the firing pin to fire the nail bullet, so that the nail shooting operation is completed.

[0003] At present, the national standard of my country requires that the nail shooter should not be fired when it falls from a height of 3 meters. In order to meet the requirements of the national standard, the existing hammer-type nail shooter needs to design multiple resistance ring mechanisms inside the firing mechanism of the nail shooter to meet the condition that the nail shooter should not be fired when it falls from a height of 3 meters. Although this design can make the nail shooter meet the requirements, it will also cause the nail shooter to have problems such as complex structure, high manufacturing cost, and poor reliability. Summary of the invention

[0004] The object of the present invention is to provide a firing mechanism and a hammer-type nail shooter having the firing mechanism, which changes the original biased firing mode, not only making the firing of the firing pin more accurate, but also reducing the number of resistance rings, making the structure of the nail shooter simpler.

[0005] To achieve the purpose of the present invention, the technical solution adopted is:

[0006] A firing mechanism comprises a firing pin sleeve, a firing pin and a hammer for firing the firing pin; a resistance spring is arranged between the hammer and the firing pin sleeve.

[0007] Furthermore, the firing pin sleeve is also provided with a first limiting structure for limiting the hammer from sliding down.

[0008] Furthermore, the first limiting structure includes a guide hole opened on the firing pin sleeve and a connecting pin fixed on the hammer; the guide hole is arranged along the axial direction of the firing pin sleeve, and the end of the connecting pin is inserted into the guide hole.

[0009] Furthermore, there are two guide holes, which are symmetrically arranged along the central axis of the firing pin sleeve, and both ends of the connecting pin are respectively inserted into the two guide holes.

[0010] Furthermore, the firing end of the firing pin is in one of the following shapes: conical, spherical, conical, and pyramidal.

[0011] Furthermore, the firing pin and the hammer are integrally arranged.

[0012] A hammer-type nail shooter comprises a launching mechanism, a connecting mechanism and the firing mechanism; the launching mechanism and the firing mechanism are respectively installed at two ends of the connecting mechanism, and the tail of the firing pin corresponds to the firing end of the launching mechanism.

[0013] Furthermore, the connecting mechanism includes a jacket and a grip inserted at one end of the jacket, and the rear end of the grip is open; the firing pin sleeve is installed at the plug-in end of the jacket, and the rear end of the hammer extends to the opening of the grip.

[0014] Furthermore, the launching mechanism is installed in the outer jacket, and a second limiting structure for limiting the launching mechanism is also installed on the outer jacket.

[0015] Furthermore, the launching mechanism includes a piston cylinder, a piston rod, a nail tube and a chamber body; the piston cylinder is installed in the outer sleeve, and the piston rod is installed in the piston cylinder; the nail tube is installed at the launching end of the piston cylinder, the chamber body is installed at the firing end of the piston cylinder, and the chamber body corresponds to the firing end of the firing pin.

[0016] Furthermore, a guide groove is provided in the piston cylinder, and the upper end of the second limiting structure is inserted into the guide groove.

[0017] Furthermore, the second limiting structure includes a limiting sleeve installed on the outer sleeve and a limiting pin installed in the limiting sleeve, and the tail of the limiting pin is inserted in the guide groove.

[0018] Furthermore, the limit pin is step-shaped, the small shaft section of the limit pin is inserted in the guide groove, one end of the large shaft section of the limit pin is fixed to the limit nut, and the other end of the large shaft section of the limit pin is close to the outer wall of the piston cylinder.

[0019] Furthermore, a limiting nut is provided on the upper cover of the limiting sleeve, and the limiting nut is threadedly connected to the limiting sleeve; a mounting hole is also provided on the large shaft section of the limiting pin; a limiting pin spring is installed in the mounting hole, and the upper end of the limiting pin spring is tightly pressed against the limiting nut.

[0020] The beneficial effects of the present invention are:

[0021] By improving the firing mechanism and adding a resistance spring in the firing sleeve, when the nail shooter is in free fall, the hammer moves forward quickly under the action of inertia. At this time, the resistance spring can effectively block the hammer, greatly reducing the inertial force of the hammer hitting the firing pin, and effectively preventing the firing pin from hitting the nail bullet, making the nail shooter unable to be fired. This not only meets my country's national standards, but also makes the structure of the firing mechanism simpler, the cost lower, the assembly more convenient, and the stability higher.

[0022] By setting the firing end of the firing pin into a cone shape, since the nail bullet is fired by edge fire, when the nail shooter is in free fall, the firing end of the firing pin contacts the center of the nail bullet, causing the center of the nail bullet to deform, thereby effectively alleviating the impact force of the firing pin on the edge of the nail bullet, so that the nail bullet cannot be fired when the nail shooter is in free fall, which meets my country's national standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the existing firing mechanism provided by the present invention;

[0024] Figure 2 is a structural diagram of the firing mechanism provided by the present invention;

[0025] Figure 3 yes Figure 2 The structural diagram of the firing pin sleeve;

[0026] Figure 4 yes Figure 2 The structural diagram of the firing pin;

[0027] Figure 5 yes Figure 2 The structural diagram of the middle hammer;

[0028] Figure 6 It is a structural diagram of the hammer-type nail shooter provided by the present invention;

[0029] Figure 7 yes Figure 6 Structural diagram of the connecting mechanism;

[0030] Figure 8 yes Figure 6 Structural diagram of the launch mechanism.

[0031] Markings and corresponding parts names in the attached drawings:

[0032] 11. firing pin sleeve, 12. firing pin, 13. resistance spring, 14. hammer, 15. first limiting structure;

[0033] 151, guide hole, 152, connecting pin;

[0034] 21. handle, 22. outer cover, 23. second limiting structure;

[0035] 231, limiting sleeve, 232, limiting pin, 233, limiting nut, 234, mounting hole, 235, limiting pin spring;

[0036] 31. Piston cylinder, 32. Piston rod, 33. Nail tube, 34. Chamber body, 35. Guide groove. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0038] Example 1

[0039] Figures 2 to 5 A firing mechanism provided by the present invention is shown, comprising a firing pin sleeve 11, a firing pin 12 and a hammer 14 for firing the firing pin 12; a resistance spring 13 is provided between the hammer 14 and the firing pin sleeve 11.

[0040] The firing pin sleeve 11 includes a firing pin 12 mounting cavity, a resistance spring 13 mounting cavity, and a hammer 14 mounting cavity. The firing pin 12 mounting cavity, the resistance spring 13 mounting cavity, and the hammer 14 mounting cavity all penetrate the firing pin sleeve 11, and the diameter of the firing pin 12 mounting cavity is greater than the diameter of the resistance spring 13 mounting cavity, and the diameter of the resistance spring 13 mounting cavity is greater than the diameter of the hammer 14 mounting cavity, so that the connection between the firing pin 12 mounting cavity and the resistance spring 13 mounting cavity, and the connection between the resistance spring 13 mounting cavity and the hammer 14 mounting cavity are both step-shaped; the firing pin 12 is installed in the firing pin 12 mounting cavity, and the firing pin 12 can move in the firing pin 12 mounting cavity; the firing pin 12 is in the shape of a stepped shaft, the large shaft section of the firing pin 12 is located in the resistance spring 13 mounting cavity, the firing end of the firing pin 12 passes through the firing pin 12 mounting cavity, and the step at the connection between the firing pin 12 mounting cavity and the resistance spring 13 mounting cavity can effectively limit the firing pin 12.

[0041] The resistance spring 13 is installed in the resistance spring 13 installation cavity, and the major diameter of the resistance spring 13 matches the diameter of the resistance spring 13 installation cavity; the hammer 14 is movable in the hammer 14 installation cavity, and the diameter of the firing end of the hammer 14 is smaller than the diameter of the firing pin 12 installation cavity, so that during the movement of the hammer 14, the firing end of the hammer 14 can smoothly enter the resistance spring 13 cavity to strike the firing pin 12; when the nail shooter falls, the hammer 14 moves toward the firing pin 12, and at this time the striking force of the hammer 14 is relatively small. When the hammer 14 moves toward the firing pin 12, the resistance spring 13 effectively blocks the hammer 14, thereby preventing the hammer 14 from striking the firing pin 12.

[0042] The hammer 14 includes a hammer rod and a disc installed on the hammer rod, there is at least one disc, and multiple discs are located in the installation cavity of the hammer 14; the diameter of the disc is clearance-matched with the diameter of the installation cavity of the hammer 14, which not only ensures that the hammer 14 can move fully in the installation cavity of the hammer 14, but also effectively prevents the hammer 14 from tilting during the movement, so that the movement of the hammer 14 is always in the same straight line, making the hammer 14 hit the firing pin 12 more accurately.

[0043] The firing pin sleeve 11 is also provided with a first limiting structure 15 for limiting the hammer 14 from sliding down. The first limiting structure 15 can not only effectively limit the movement of the hammer 14, but also effectively prevent the hammer 14 from falling off from the firing pin sleeve 11 during use, thereby realizing an active connection between the hammer 14 and the firing pin sleeve 11.

[0044] The first limiting structure 15 includes a guide hole 151 formed on the firing pin sleeve 11 and a connecting pin 152 fixed on the hammer 14; the guide hole 151 is arranged along the axial direction of the firing pin sleeve 11, and the end of the connecting pin 152 is inserted into the guide hole 151; the guide hole 151 is a long waist hole, and the axial direction of the guide hole 151 is consistent with the axial direction of the firing pin sleeve 11; the axial direction of the connecting pin 152 is consistent with the diameter direction of the hammer 14, and the connecting pin 152 is fixedly installed on the hammer 14 by welding or forced installation, so that the connection between the connecting pin 152 and the hammer 14 is more firmly connected, and in order to make the installation of the hammer 14 more convenient, The connecting pin 152 is preferably installed on the hammer 14 by forced installation. When the hammer 14 needs to be assembled, the hammer 14 is first installed in the firing pin sleeve 11, and then the connecting pin 152 is passed through the guide hole 151, and the connecting pin 152 is forced onto the hammer 14, so that the installation of the hammer 14 is more convenient; by inserting the end of the connecting pin 152 into the guide hole 151, when the hammer 14 moves, the movement of the hammer 14 can not only be guided by the guide hole 151, but also through the cooperation between the connecting pin 152 and the guide hole 151, the hammer 14 is effectively prevented from falling off from the firing pin sleeve 11, so that a movable connection is achieved between the hammer 14 and the firing pin sleeve 11.

[0045] There are two guide holes 151, which are symmetrically arranged along the central axis of the firing pin sleeve 11, and the two ends of the connecting pin 152 are respectively inserted into the two guide holes 151; the two guide holes 151 are symmetrically arranged along the center of the firing pin sleeve 11, and the central axis of the connecting pin 152 is consistent with the diameter direction of the hammer 14, so that the two ends of the connecting pin 152 are respectively accurately inserted into the two guide holes 151, so that the hammer 14 is more stable during the movement process, and the hammer 14 is prevented from tilting when striking the firing pin 12. The number of the guide holes 151 can also be greater than two. When the number of the guide holes 151 is greater than two, the plurality of guide holes 151 are evenly spaced along the circumference of the circumference of the firing pin sleeve 11. At this time, the plurality of connecting pins 152 can be directly welded to the outer wall of the disc.

[0046] The firing end of the firing pin 12 is in one of the shapes of a cone, a spherical crown, a cone, and a pyramid. Specifically, the firing end of the firing pin 12 is the end of the firing pin 12 that hits the nail bullet, and the diameter of the circumscribed circle of the firing end of the firing pin is smaller than the diameter of the fired end of the firing pin. Since the nail bullet adopts edge-fire firing, when the nail shooter is in free fall, the firing end of the firing pin 12 contacts the center of the nail bullet, causing the center of the nail bullet to deform, thereby effectively alleviating the impact force of the firing pin 12 on the edge of the nail bullet, so that the nail bullet cannot be fired when the nail shooter is in free fall.

[0047] When the nail shooter is in free fall, the hammer 14 moves forward rapidly under the action of inertia, and the resistance spring 13 cooperates with the disc on the hammer 14 to block the hammer 14, thereby greatly reducing the inertial force of the hammer 14 hitting the firing pin 12, effectively preventing the firing pin 12 from hitting the nail bullet, making the nail shooter unable to be fired, and making the nail shooter meet my country's national standards.

[0048] Example 2

[0049] The difference between this embodiment 2 and embodiment 1 is that:

[0050] The second embodiment provides a firing mechanism, wherein the firing pin 12 and the hammer 14 are integrally arranged. Specifically, the firing pin 12 and the hammer 14 are integrally formed, or the firing pin 12 and the hammer 14 are welded and fixed. When the nail shooter is in free fall, the hammer 14 moves forward rapidly under the action of inertia. When the hammer 14 moves, the firing pin 12 integrally arranged with the hammer 14 moves synchronously with the hammer 14. During the movement of the hammer 14, due to the cooperation between the resistance spring 13 and the disc on the hammer 14, the resistance spring 13 blocks the hammer 14, thereby greatly reducing the inertia of the hammer 14, thereby greatly reducing the inertia of the firing pin 12 hitting the nail bullet, effectively preventing the firing pin 12 from hitting the nail bullet, and making the nail shooter unable to be fired, so that the nail shooter meets the national standards of my country.

[0051] Example 3

[0052] The difference between this embodiment 3 and embodiment 1 and embodiment 2 is that:

[0053] like Figures 6 to 8 As shown, this embodiment 3 provides a hammer-type nail shooter, including a firing mechanism, a connecting mechanism and the above-mentioned firing mechanism; the firing mechanism and the firing mechanism are respectively installed at two ends of the connecting mechanism, and the tail of the firing pin 12 corresponds to the firing end of the firing mechanism.

[0054] The launching mechanism is used to launch nails, and the firing mechanism is used to fire nail bullets. When the nail bullets are fired, the nail bullets explode, thereby driving the launching mechanism to launch the nails. The connecting mechanism is used to connect the firing mechanism and the launching mechanism. By matching the tail of the firing pin 12 in the firing mechanism with the firing end of the launching mechanism, the firing pin 12 can directly hit the launching mechanism after being subjected to force, thereby making the launching mechanism work and finally achieving the firing of the nails.

[0055] The connecting mechanism includes a jacket 22 and a grip 21 inserted at one end of the jacket 22, and the rear end of the grip 21 is open; the firing pin sleeve 11 is installed at the plug-in end of the jacket 22, and the rear end of the hammer 14 extends to the opening of the grip 21; the grip 21 is straight-cylindrical, and the jacket 22 is inserted at one end of the grip 21, and the jacket 22 is fixedly connected to the grip 21; the connecting end of the jacket 22 is the end of the jacket 22 inserted in the grip 21, specifically, the firing pin sleeve 11 is fixedly installed at the connecting end of the jacket 22 by threads, and the outer shape of the firing pin sleeve 11 is screw-shaped, so that the installation of the firing pin sleeve 11 is faster and more convenient; the rear end of the grip 21 is trumpet-shaped, specifically, the rear end of the hammer 14 does not extend out of the rear end of the grip 21, so that when the nail shooter needs to work, people can more conveniently apply force to the hammer 14, making the operation of the hammer 14 more convenient.

[0056] The launching mechanism is installed in the outer sleeve 22, and a second limiting structure 23 for limiting the launching mechanism is also installed on the outer sleeve 22; the second limiting structure 23 is used to limit the launching mechanism. Through the limitation of the second limiting structure 23, the launching mechanism is prevented from falling off from the outer sleeve 22 due to the explosion of the nail bullet during operation, thereby ensuring the stability of the nail shooter.

[0057] The launching mechanism comprises a piston cylinder 31, a piston rod 32, a nail tube 33 and a chamber body 34; the piston cylinder 31 is installed in the outer sleeve 22, and the piston rod 32 is installed in the piston cylinder 31; the nail tube 33 is installed at the launching end of the piston tube, and the chamber body 34 is installed at the firing end of the piston cylinder 31, and the chamber body 34 corresponds to the firing end of the firing pin 12; the piston cylinder 31 and the outer sleeve 22 are clearance-matched, and the piston cylinder 31 can move in the outer sleeve 22; the chamber body 34 is fixedly installed at the rear end of the piston cylinder 31 by threads, and the chamber body 34 corresponds to the firing pin 12. Specifically, the outer surface of the chamber body 34 is screw-shaped, so that the chamber body 34 can be quickly fixedly installed on the piston cylinder 31; the chamber body 34 is used for the installation of nail bullets, so that when the firing pin 12 is subjected to force, the firing pin 12 strikes the nail bullets installed in the chamber body 34, causing the nail bullets to explode; The piston rod 32 is slidably installed in the piston cylinder 31, and the head of the piston rod 32 corresponds to the tail of the chamber body 34, so that after the nail bullet in the chamber body 34 is fired, the explosive force generated by the nail bullet pushes the piston rod 32 to move forward rapidly in the piston cylinder 31; the nail tube 33 is fixed to the front end of the piston cylinder 31 by threads. Specifically, the nail tube 33 can be fixedly sleeved on the front end of the piston cylinder 31 by threaded connection, or the nail tube 33 is fixedly inserted into the front end of the piston cylinder 31 by threaded connection, so that the installation of the nail tube 33 is faster and more convenient. Specifically, the interior of the nail tube 33 is connected with the interior of the piston cylinder 31, and the central axis of the nail tube 33 is in the same straight line with the central axis of the piston rod 32. When the piston rod 32 moves forward rapidly, the front end of the piston rod 32 quickly pushes the nails in the nail tube 33, so that the nails are quickly ejected from the nail tube 33, so that the nail shooter completes the nail shooting operation.

[0058] A guide groove 35 is provided in the piston cylinder 31, and the upper end of the second limiting structure 23 is inserted in the guide groove 35; the guide groove 35 is long and waist-shaped, and the length direction of the guide groove 35 is consistent with the length direction of the piston cylinder 31, and the guide groove 35 is located in the outer sleeve 22; by inserting the upper end of the second limiting structure 23 in the guide groove 35, the second limiting structure 23 can effectively limit and guide the movement of the piston cylinder 31, so that when the piston cylinder 31 moves in the outer sleeve 22, not only the piston cylinder 31 always moves in a straight line, but also the piston cylinder 31 is effectively prevented from detaching from the outer cylinder during the operation of the nail shooter; at the same time, the second limiting structure 23 can also effectively prevent the piston cylinder 31 from rotating during the movement.

[0059] The second limiting structure 23 includes a limiting sleeve 231 installed on the outer sleeve 22 and a limiting pin 232 installed in the limiting sleeve 231, and the tail of the limiting pin 232 is inserted in the guide groove 35; the limiting sleeve 231 extends along the radial direction of the outer sleeve 22, and the limiting sleeve 231 is fixed to the outer sleeve 22 by welding or forcing; the limiting sleeve 231 is tubular, and the limiting pin 232 can move in the limiting sleeve 231, and the limiting pin 232 can be moved by moving the limiting pin 232. The extended length of the limiting pin 232 can be adjusted so that the tail of the limiting pin 232 can be smoothly inserted into the guide groove 35, thereby realizing the limiting and guiding of the piston cylinder 31; the diameter of the limiting pin 232 and the width of the guide groove 35 are clearance-matched, so that when the piston cylinder 31 moves, the piston cylinder 31 can move smoothly along the limiting pin 232, so that the limiting pin 232 and the guide groove 35 are better matched, preventing the piston cylinder 31 from getting stuck during the movement.

[0060] The limiting pin 232 is in a step shape, the small shaft section of the limiting pin 232 is inserted in the guide groove 35, one end of the large shaft section of the limiting pin 232 is fixed with the limiting nut 233, and the other end of the large shaft section of the limiting pin 232 is close to the outer wall of the piston cylinder 31; the diameter of the small shaft section of the limiting pin 232 is matched with the width of the guide groove 35, and the diameter of the large diameter section of the limiting pin 232 is larger than the width of the guide groove 35. Through the cooperation between the large diameter section of the limiting pin 232 and the guide groove 35, the limiting pin 232 is extended to After the guide groove 35 reaches a certain distance, the limit pin 232 cannot continue to move into the guide groove 35, which effectively prevents the limit pin 232 from extending too long into the guide groove 35 and causing obstruction to the piston rod 32, thereby controlling the movement of the piston rod 32; at the same time, through the cooperation between the large diameter section of the limit pin 232 and the guide groove 35, the installation of the limit pin 232 is more stable, preventing the piston cylinder 31 from getting stuck due to the sliding of the limit pin 232 during the movement of the piston cylinder 31.

[0061] A limiting nut 233 is provided on the limiting sleeve 231, and the limiting nut 233 is threadedly connected to the limiting sleeve 231; a mounting hole 234 is also provided on the large shaft section of the limiting pin 232; a limiting pin spring 235 is installed in the mounting hole 234, and the upper end of the limiting pin spring 235 is tightly pressed against the limiting nut 233; specifically, an external thread is provided on the outer wall of the limiting sleeve 231, and an internal thread matching the external thread is provided on the inner wall of the limiting nut 233, and through the cooperation between the external thread and the internal thread, when the limiting nut 233 is screwed, the limiting nut 233 produces a certain displacement on the limiting sleeve 231.

[0062] The central axis of the mounting hole 234 is consistent with the central axis of the limit pin 232. The limit pin spring 235 is installed in the mounting hole 234. By installing the limit nut 233, the limit pin spring 235 is pressed in the mounting hole 234, and the pressing force of the limit nut 233 on the limit pin spring 235 is directly transmitted to the limit pin 232, so that the large diameter section of the limit pin 232 is pressed against the piston cylinder 31, so that the limit pin 232 is fixed, making the limit pin 232 more stable during the movement of the piston cylinder 31, and preventing the movement of the piston cylinder 31 from getting stuck due to the sliding of the limit pin 232 during the movement of the piston cylinder 31. In order to make the limit pin 232 press against the outer wall of the piston cylinder 31, the limit pin 232 can be fixed to the limit nut 233 without installing the limit pin spring 235 and opening the mounting hole 234. By turning the limit nut 233, the limit nut 233 drives the limit pin 232 to move forward while rotating, so that the limit pin 232 is locked with the outer wall of the piston cylinder 31, thereby fixing the limit pin 232.

[0063] When the nail gun needs to be used, the nails are first placed in the nail tube 33, and then the nail bullet is installed in the chamber body 34, the nail tube 33 is aligned with the object to be fixed, and then the hammer 14 is struck hard to move the hammer 14 toward the firing pin 12. During the movement of the hammer 14, due to the large striking force on the hammer 14, the hammer 14 will completely compress the resistance spring 13, so that the hammer 14 hits the firing pin 12. When the firing pin 12 is struck, the firing pin 12 moves forward, so that the firing pin 12 hits the nail bullet on the chamber body 34, and the nail bullet explodes in the struck state. The force generated by the explosion of the nail bullet quickly pushes the piston rod 32 to move, so that the piston rod 32 quickly pushes out the nail tube 33, thereby realizing the nail shooting operation.

[0064] When the piston rod 32 moves, due to the large explosive force of the nail bullet, the chamber body 34 will be subjected to the reaction force of the explosion, so that the chamber body 34 will move in the outer sleeve 22. When the chamber body 34 moves, the chamber body 34 will push the piston cylinder 31 to move, so that the piston cylinder 31 moves in the outer sleeve 22. Through the cooperation of the limit pin 232 and the guide groove 35, the limit pin 232 can effectively guide and limit the piston cylinder 31 during the movement of the piston cylinder 31, preventing the piston The tube 31 falls off from the outer sleeve 22; at the same time, the explosive force generated by the explosion of the nail bullet will push the firing pin 12 to move into the firing pin sleeve 11, and the firing pin 12 will hit the hammer 14 after moving, causing the hammer 14 to move toward the rear end of the grip 21. During the movement of the hammer 14, due to the cooperation between the connecting pin 152 and the guide hole 151, the connecting pin 152 can effectively guide and limit the hammer 14 during the movement, thereby preventing the hammer 14 from falling off from the firing pin sleeve 11.

[0065] When the nail shooter is in free fall, the hammer 14 moves forward quickly under the action of inertia. At this time, the force pushing the hammer 14 forward is relatively small. Through the cooperation of the resistance spring 13 and the disc on the hammer 14, the resistance spring 13 effectively blocks the hammer 14, thereby greatly reducing the inertial force of the hammer 14 hitting the firing pin 12, making it impossible for the hammer 14 to hit the firing pin 12, and thus making it impossible for the firing pin 12 to fire the nail bullet installed in the chamber body 34, thereby preventing the nail shooter from being fired, and making the nail shooter meet my country's national standards.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hammer-type nail shooter, characterized in that: The invention comprises a firing mechanism, a firing mechanism and a connecting mechanism, wherein the firing mechanism comprises a firing pin sleeve (11), a firing pin (12) and a hammer (14) for firing the firing pin (12); a resistance spring (13) is arranged between the hammer (14) and the firing pin sleeve (11); the firing pin sleeve (11) is also provided with a first limiting structure (15) for limiting the hammer (14) from sliding down, and the first limiting structure (15) comprises a guide hole (15) provided on the firing pin sleeve (11) 51) and a connecting pin (152) fixed on the hammer (14); the guide hole (151) is arranged along the axial direction of the firing pin sleeve (11), and the end of the connecting pin (152) is inserted into the guide hole (151); the launching mechanism and the firing mechanism are respectively installed at two ends of the connecting mechanism, and the tail of the firing pin (12) corresponds to the firing end of the launching mechanism; the firing end of the firing pin (12) is one of a conical shape, a spherical crown shape, and a pyramid shape.

2. The hammer nailer according to claim 1, characterized in that: The connecting mechanism comprises a jacket (22) and a grip (21) inserted into one end of the jacket (22), and the rear end of the grip (21) is open; the firing pin sleeve (11) is installed at the plug-in end of the jacket (22), and the rear end of the hammer (14) extends to the opening of the grip (21).

3. The hammer nailer according to claim 2, characterized in that: The launching mechanism comprises a piston cylinder (31), a piston rod (32), a nail tube (33) and a chamber body (34); the piston cylinder (31) is installed in a sleeve (22), and the piston rod (32) is installed in the piston cylinder (31); the nail tube (33) is installed at the launching end of the piston cylinder (31), and the chamber body (34) is installed at the firing end of the piston cylinder (31), and the chamber body (34) corresponds to the firing end of the firing pin (12).

4. The hammer nailer according to claim 3, characterized in that: The launching mechanism is installed in the outer sleeve (22), and a second limiting structure (23) for limiting the launching mechanism is also installed on the outer sleeve (22); a guide groove (35) is opened in the piston cylinder (31), and the upper end of the second limiting structure (23) is inserted into the guide groove (35).

5. The hammer nailer according to claim 4, characterized in that: The second limiting structure (23) comprises a limiting sleeve (231) installed on the outer sleeve (22) and a limiting pin (232) installed in the limiting sleeve (231), and the tail of the limiting pin (232) is inserted in the guide groove (35); the limiting pin (232) is in a step shape, the small shaft section of the limiting pin (232) is inserted in the guide groove (35), one end of the large shaft section of the limiting pin (232) is fixed to the limiting nut (233), and the other end of the large shaft section of the limiting pin (232) is close to the outer wall of the piston cylinder (31).

6. The hammer nail driver according to claim 5, characterized in that: A limiting nut (233) is provided on the limiting sleeve (231), and the limiting nut (233) is threadedly connected to the limiting sleeve (231); a mounting hole (234) is also provided on the large shaft section of the limiting pin (232); a limiting pin spring (235) is installed in the mounting hole (234), and the upper end of the limiting pin spring (235) is tightly pressed against the limiting nut (233).

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