CN1086331C

CN1086331C - Pneumatic rivetter

Info

Publication number: CN1086331C
Application number: CN99112765A
Authority: CN
Inventors: 林广勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-17
Filing date: 1999-03-17
Publication date: 2002-06-19
Anticipated expiration: 2019-03-17
Also published as: CN1267584A

Abstract

The present invention relates to a nailing tool, particularly to a nail shoot gun, wherein driving force of which is produced by ammunition explosion, comprising a gun pipe, an outer pipe, a gun body, a piston, a piston sleeve barrel, a machine head, a firing pin and a chamber body. The piston sleeve barrel is composed of a barrel body and a barrel seat, combination position of the barrel body and the barrel seat is provided with a compacting ring for applying pressure to the surface of the piston, and the compacting ring is formed when moved toward reverse direction of nail shoot direction following the barrel body. One side which is the side corresponding to the piston of a stop blocking ring is provided with an annular spring for absorbing energy of the piston on which a balancing weight matching block is arranged. The present invention has the characteristic that the piston can be manually controlled to absorb the energy when work operation is done and also has the characteristics of long life time of function components, convenient operation and high work efficiency.

Description

Ail gun

The present invention relates to a kind of ailing tool, particularly produce the ail gun of driving force by the ammunition blast.

Existing ail gun by piston transmission energy, the percussion energy that nail shooting pill produced mainly acts on the piston, by piston the energy that absorbs is passed to nailing again.The subject matter that this ail gun exists is: the energy that piston absorbs the ammunition outburst is the frictional resistance that produces by the elastic piston ring that is located on the piston skirt, and the frictional resistance that piston ring produces can not artificially be controlled when operation; Adopt the spacing stop of stop baffle ring, it will bear bigger impulsive force, therefore very easily cause the plastic deformation of stop baffle ring, piston rod also can be broken because of the effect of inertia that is produced simultaneously, the service life of stop baffle ring and piston rod is short, need often to change, this not only makes troubles to use, also can be because of changing the untimely nailing effect that influences; Ail gun can not be set on demand to the nailing degree of depth.

But it is 93213494.7 running fire ail gun that China's utility model patent discloses a kind of application number, and it is to spring into thorax, ejection by claw hook on cartridge clip and nailing folder and the gunlock is set on realizing fast and automatically.This ail gun is except that having above-mentioned deficiency, and its claw hook is just hauled out the cartridge chamber body with shell case, and how statement does not realize automatic ejection.

The object of the present invention is to provide the ail gun of a kind of energy that can control piston absorbs, parts long service life, easy to operate, high efficiency.

The object of the present invention is achieved like this: ail gun comprises gun barrel, outer tube, rifle body, piston, piston sleeve, head, firing pin, cartridge chamber body, its special character is by cylindrical shell and cylinder base piston sleeve dimerous, be provided with in its junction with cylindrical shell to the reverse hold-down ring that piston face is exerted pressure that forms when mobile of nailing direction; Promptly be provided with the ring spring that absorbs the piston energy with the piston opposite side in stop baffle ring one side, piston is provided with balancing weight.

Be used to clash into the bullet bottom and ignition charge and will pull the trigger after the external firing pin assembly of the knocking-on rifle of shell case be arranged on the headstock of head outside, when remaining static and pull the trigger state, the firing pin axis is parallel with the rifle body axis, when being in the ejection state, the extended line of firing pin axis and rifle body axis intersect the formation angle.

Described firing pin assembly is by firing pin, is located at firing pin cover, firing pin baffle ring, two ends on the firing pin bar and is against return spring on firing pin cover and the firing pin baffle ring and an end respectively and is against firing pin and puts, and the firing pin spring that the other end is against on the rifle body constitutes.

Described firing pin, its firing pin body cross section is a convex, can insert projection in the head groove with the head couple positioned opposite, opposite side is that the off-centre of its axial line and firing pin axes intersect lacks cylinder, lacks on the cylinder in off-centre to be provided with the groove that matches with firing pin sear groove.

On headstock, be provided with the maintenance firing pin and be in the firing pin sear of waiting the state of pulling the trigger and firing pin is had the firing pin swing sear that hits the shell stroke.

Described firing pin sear and firing pin swing sear also can be set in place on the chute body on the headstock, the chute body is provided with the blocking mechanism that is used to pin the firing pin sear, be used to promote the slide-bar that the chute body oppositely moves along the nailing direction, the one end is against on the chute body, and it is relative with piston seat that the other end passes the cartridge chamber body.

The present invention also includes cartridge clip, cartridge clip is for filling the flat prismatic housing of double bullet, on the two side relative, be respectively equipped with boss along its length with the bullet external diameter, the setting of this boss can closely be close together staggered two row's bullets and bullet moved and play the guiding role, and the flange on the bullet can move to Way out along the track that boss forms.

Include the ail gun of nailing folder, be provided with on the nailing supporting plate in the nailing folder and can advance nail from gun barrel and mouthful stretch into lock dog in the gun barrel.

Be provided with upper sear relative with firing pin sear shift position and that the firing pin sear can be pinned in the rifle body, upper sear one end is relative with push rod and can promote bottom offset at it, and the other end is connected with spring.

The present invention compared with prior art has following characteristics:

1, be provided with the hold-down ring that can produce radial pressure to piston, the size of hold-down ring pressure depends on the pressure of gun barrel to working face, therefore can realize the energy that automatic control piston absorbs.

2, before the stop baffle ring, be provided with the ring spring that absorbs piston slap power, prolonged the service life of stop baffle ring.

3, between piston and piston rod, be provided with balancing weight,, make it be not enough to produce the inertia force of breaking piston rod, prolong the service life of piston in order to reduce piston movement speed.

4, can the nailing degree of depth be controlled by changing the different stop baffle ring of axial height.

5, this ail gun include the nail folder, cartridge clip and be located at the claw hook on the head and be arranged on head can be used in outward the percussion ammunition and the bump shell case make the external firing pin of its rifle of dishing out, therefore it has automatic binding, shoots the function with ejection and ejection, it is simple to operate, easy to use, high efficiency.

6, have multiple insurance function, guarantee safe in utilization.

Fig. 1 is an inactive state structural representation of the present invention;

Fig. 2 is a battery structural representation of the present invention;

Structural representation when Fig. 3 penetrates nailing at people's working substance for the present invention;

Fig. 4 is that Figure 1A-A is to cut-away view;

Fig. 5 is that Fig. 4 E-F is to cut-away view;

Fig. 6 for Fig. 4 be in shell case go out the thorax state from A-O-B to the schematic diagram of cutting open;

When Fig. 7 is in the ejection state for Fig. 4 from A-O-B to the schematic diagram of cutting open;

Fig. 8 for Fig. 4 be in percussion during ammunition from A-O-B to the schematic diagram of cutting open;

Fig. 9 is a partial structurtes schematic diagram of the present invention;

Figure 10 is a cartridge clip structural representation of the present invention.

The invention will be further described below in conjunction with accompanying drawing:

As Fig. 1, Fig. 2, shown in Figure 3, ail gun outer tube (9) one ends are connected with universal cap (2), and the other end is connected with rifle body (32) through thread bush (13).One end of gun barrel (1) links to each other with the U shell body (5) that is positioned at outer tube.Establish ring spring (3) and stop baffle ring (4) in the U shell body, U shell body openend is connected with piston barrel (7) threaded one end, and with nut (6) locking, makes gun barrel, U shell body, ring spring, stop baffle ring and piston barrel become motion integral body.The piston barrel other end inserts in the piston cylinder base (12), is provided with hold-down ring (11) between the two, and the outer peripheral face of hold-down ring is the conical surface, and piston cylinder base internal perisporium is provided with the conical surface that is mated.When applying to gun barrel with the reverse active force of nailing direction, piston barrel is squeezed in hold-down ring between piston barrel and the piston cylinder base, make it produce radial compression applied on piston, realize the endergonic control of piston by the resistance of motion of control piston in cartridge chamber.Piston (10) is an one with balancing weight, and upper cover of piston rod has back-moving spring (8), and the one end is against on the piston, and the other end is against on the stop baffle ring.Nailing folder (38) is connected on the universal cap, and can be suitable with universal cap wire-wrap tool body axis, rotate counterclockwise.Be provided with into nail mouth on the gun barrel relative with nailing folder opening, leaning on into, the gun barrel of nail mouth front end is provided with and advances the little opening that the nail mouth is connected.Reverse when mobile to the nailing direction when gun barrel, little opening then moves to and the relative position of nailing folder opening, and it will separate by what plastic washer connected and enter in the gun barrel and be positioned at the nailing (37) of nailing folder opening part.Supporting plate in the nailing folder is provided with and can stretches into lock dog (48) in the gun barrel from advancing the nail mouth, when not having nailing in the nailing folder, under the effect of nailing folder spring, lock dog advances the nail mouth through gun barrel and enters in the gun barrel, see Fig. 9, it will stop gun barrel oppositely to move to the nailing direction, and ail gun can not push to put in place and carry out operate as normal, prevents that sky from hitting.Be provided with clutch collar (16) in the rifle body, see Fig. 4, the headstock (22) that is positioned at clutch collar is provided with head (20), is connected with pawl (42) on the head, is connected with the back-moving spring of pawling (46) on pawling.As Fig. 6, Fig. 7, shown in Figure 8, between head and rifle body end wall, be provided with head back-moving spring (45), position relative with firing pin (23) on the head is provided with the groove that can match with the firing pin projection, can be inclined-plane (20a) with the contacted cell wall end face of firing pin cover (24), can produce radial thrust when mobile to the nailing direction is reverse promoting firing pin, firing pin is tilted, and the extended line of firing pin axis and rifle body axis intersect.Also be equipped with on the head when the head end face with cartridge chamber body (15) but when end face contacts dogging at the claw hook (17) and the claw hook spring (18) of the bullet that loads (36) shell case end flange.Be used to promote head is against end face from the piston cylinder base to oppositely mobile push rod (14) one ends of nailing direction, the other end contacts with the guide rod that is positioned at headstock back-moving spring (40) (41), pawl (42) that are connected on the head (20) respectively, and also the end face with upper sear (31) is relative simultaneously.The firing pin assembly of being made up of firing pin (23), firing pin cover (24), baffle ring (26) and return spring (25), firing pin spring (27) is arranged on the head outside, firing pin body cross section is a convex, one side projection can stretch in the head groove, relative with bullet edge in entering cartridge chamber towards the protruding end face of cartridge chamber body end face, the eccentric cylinder that lacks of opposite side is provided with the groove that matches with the firing pin sear.Return spring is enclosed within on the firing pin bar, and the one end is against firing pin and puts, and the other end is against on the baffle ring.One end of firing pin spring is against firing pin and puts, and the other end is against on the rifle body end wall.The chute body (49) that is arranged on the headstock is provided with the firing pin sear (28) of swinging sear (29) and being positioned at groove, be used to promote the chute body and be against the chute body to slide-bar (50) one ends that the nailing direction oppositely moves, it is relative with the piston cylinder base that the other end passes cartridge chamber body (15), is connected with back-moving spring (51) between cartridge chamber body and chute body.Firing pin sear blocking mechanism on the chute body is made up of push strut spring (47) that is positioned at bullport and coupled push strut (30), sees Fig. 5, and the end of firing pin sear promptly is provided with the inclined-plane (28a) of evagination with push strut relative position place.

Relative by head sear (21) one end that trigger fork (44) drives with the firing pin sear, the other end is connected with back-moving spring (43), and the other end of back-moving spring is against on the headstock, and the head sear is when pinning head, promote the displacement of firing pin sear firing pin is discharged, the percussion bullet.

This rifle also includes trigger (33), cartridge clip lock (34) and is positioned at the cartridge clip (35) of the small of the stock.Cartridge clip is prismatic, establishes boss (52) on its two side relative with the bullet external diameter, can install two row's staggered bullets (36) in the cartridge clip.

The course of work of the present invention is: gun barrel is withstood on the working substance (39), firmly towards the nailing direction pushing body of a gun, gun barrel moves after (1), promptly oppositely move to the nailing direction, driving piston component and push rod (14) etc. simultaneously moves after together, push rod promotes to move behind the head (20), while compressor head back-moving spring (45), claw hook (17) on the head is hauled out cartridge chamber body (ail gun operation is crossed once) with shell case, promoting the firing pin cover with firing pin cover (24) contacted head cell wall inclined-plane (20a) moves it with it after together, firing pin under the effect of spring (25) with after move this moment firing pin body and firing pin cover and be subjected to headstock (22), the constraint of firing pin sear (28) and firing pin swing sear (29), firing pin can not produce radial displacement.When firing pin moves to its upper groove position relative with firing pin sear upper groove, be that the firing pin cover is when crossing firing pin sear groove, withstanding on push strut (30) on the firing pin sear convex inclined plane (28a) promotes the firing pin sear and moves down under the effect of its spring force, the cell wall of firing pin sear is contacted with the firing pin groove bottom, block the path that the firing pin cover promptly moves to the nailing direction forward, pin firing pin.At this moment push strut (30) cylinder body has shifted out bullport, only stay the afterbody that push strut cooperates with spring in the bullport, the push strut cylinder body partly is subjected to the promotion of 45 ° of (28a) inclined-planes of firing pin sear (28) afterbody reaction force, and push strut produces axis to bullport and tilts and radial displacement.When being subjected to upwards active force as firing pin sear at this moment, promote push strut (30) by 45 ° of inclined-planes of firing pin sear afterbody, on 45 ° of inclined-plane pressure directions of firing pin sear, 45 ° of chamferings of push strut external diameter and bullport produce self-locking, push strut (30) can not slip in the bullport, the firing pin sear can't on remove lock.When the firing pin sear moved down, upper sear (31) lost the constraint of firing pin sear, under the effect of spring, entered the mobile space of firing pin sear, pin the firing pin sear make its can not on move, form double insurance.The firing pin that continuation is moved backward with head is enclosed within when sliding on the firing pin swing sear, promote the swing of firing pin swing sear by its frictional force, when the firing pin cover is crossed firing pin swing sear after the swing, because the firing pin body has the inclined-plane vacancy, under the effect of head cell wall end face radial thrust, firing pin loses the constraint of swing sear, to the swing of swing sear direction, this moment, the extended line and the rifle body axis of firing pin axis intersected, break away from head axial constraint power, first no longer at random is moved backward, and under the effect of firing pin spring, move forward, drive the backswing of firing pin swing sear simultaneously, the firing pin cover hits to lean against and promotes the chute body on the firing pin sear and travel forward, and its end face leans against on the cartridge chamber body end face.Firing pin inertia force compression retracteding position spring moves forward firing pin, and it is external that the collision of firing pin end face makes its constraint that breaks away from the claw hook go out faucal (19) ejection rifle through the rifle body in cartridge case base.When moving after head continues, its pawl (42) touch headstock (22) lug boss (22a), and the bonding land of extrusion with push rod (14) of pawling, head loses the constraint of push rod power by the headstock lug boss, under head back-moving spring (45) promotes, return, bullet is pushed the cartridge chamber body.It is that the head end face leans against on the cartridge chamber body end face that head resets, the end face that is used on the head promote to move behind the firing pin is crossed the firing pin cover when reach, because the firing pin sear also has an inclination angle greater than angle of friction to the firing pin cover, under the effect of firing pin spring force, produce slippage, firing pin is put back original position, and the firing pin axis is parallel with the rifle body axis.Push rod moves after also wanting when head returns, till piston seat and cartridge chamber body compress.It is equidirectional mobile that the journey of dividing a word with a hyphen at the end of a line after this promotes upper sear (31), finishes firing pin sear (28) unlocking action.When piston cylinder base and cartridge chamber body compress, promote to move after slide-bar makes the chute body, further compress the firing pin spring, this moment each part all to be in impaction state be battery, pushing force acts on the hold-down ring, makes it produce radial component and is applied on the piston.The size of pressure is directly proportional with piston friction of motion resistance, and frictional force absorbs ammunition explosive force with piston and is directly proportional, and therefore can apply pushing force to the rifle body by control and realize the stepless regulated of ail gun energy.Cocking, trigger fork (44) promotes head sear (21) and moves, pin head, the head sear promotes push strut simultaneously,, since push strut external diameter and bullport 45 spend chamferings can not self-locking on head sear thrust direction, push strut slips in the bullport, the head sear promotes the firing pin sear and moves, for firing pin is unblanked, the firing pin cover is promoted to the motion of nailing direction by the firing pin spring, and the firing pin cover hits and leans against stop motion on the head cell wall end face, firing pin is driven by inertia force and travels forward, bump ammunition ignition edge, the ammunition outburst, firing pin promotes back to lean against firing pin by return spring and puts, and make firing pin end and cartridge case base keep certain interval, in order to ejection.

Ammunition outburst energy passes to piston, and piston compression piston spring to nailing direction rapid movement, promotes nailing and carries out terminal operation.Unnecessary energy is absorbed by ring spring, and assurance function spare is worked under the normal stress state.

Operation finishes, and trigger, head sear are by spring reset, and gun barrel leaves working substance, and push rod (14) and piston promote the piston cylinder base respectively under back-moving spring (40), (8) effect and piston is got back to inactive state shown in Figure 1.Pawling on the head promotes pendulum by the spring of pawling (46) and gets back to the position relative with push rod.

Claims

1, a kind of ail gun, comprise gun barrel, outer tube, rifle body, piston, piston sleeve, head, firing pin, cartridge chamber body, it is characterized in that by cylindrical shell and cylinder base piston sleeve dimerous, be provided with in its junction with cylindrical shell to the reverse hold-down ring that piston face is exerted pressure that forms when mobile of nailing direction; Promptly be provided with the ring spring that absorbs the piston energy with the piston opposite side in stop baffle ring one side, piston is provided with balancing weight.

2, ail gun according to claim 1, it is characterized in that being used to clashing into the bullet bottom and ignition charge and will pull the trigger after the external firing pin assembly of the knocking-on rifle of shell case be arranged on the headstock of head outside, when remaining static and pull the trigger state, the firing pin axis is parallel with the rifle body axis, when being in the ejection state, the extended line of firing pin axis and rifle body axis intersect.

3, ail gun according to claim 2, it is characterized in that: described firing pin assembly is by firing pin, is located at firing pin cover, firing pin baffle ring, two ends on the firing pin bar and is against return spring on firing pin cover and the firing pin baffle ring and an end respectively and is against firing pin and puts, and the firing pin spring that the other end is against on the rifle body constitutes.

4, ail gun according to claim 3, it is characterized in that: described firing pin, its firing pin body cross section is a convex, can insert projection in the head groove with the head couple positioned opposite, opposite side is that the off-centre of its axial line and firing pin axes intersect lacks cylinder, lacks on the cylinder in off-centre to be provided with the groove that matches with firing pin sear groove.

5, ail gun according to claim 1 is characterized in that: be provided with the maintenance firing pin and be in the firing pin sear of waiting the state of pulling the trigger and firing pin is had the firing pin swing sear that hits the shell stroke on headstock.

6, ail gun according to claim 1, it is characterized in that: described firing pin sear and firing pin swing sear also can be set in place on the chute body on the headstock, the chute body is provided with the blocking mechanism that is used to pin the firing pin sear, be used to promote the slide-bar that the chute body oppositely moves along the nailing direction, the one end is against on the chute body, and it is relative with piston seat that the other end passes the cartridge chamber body.

7, ail gun according to claim 1 is characterized in that also including cartridge clip, and cartridge clip is respectively equipped with boss for filling the flat prismatic housing of double bullet along its length on the two side relative with the bullet external diameter.

8, ail gun according to claim 1 is characterized in that: include the ail gun of nailing folder, be provided with on the nailing supporting plate in the nailing folder and can advance nail from gun barrel and mouthful stretch into lock dog in the gun barrel.

9, according to claim 5,6 described ail guns, it is characterized in that in the rifle body, being provided with upper sear relative with firing pin sear shift position and that the firing pin sear can be pinned, upper sear one end is relative with push rod and can promote bottom offset at it, and the other end is connected with spring.