CN215903450U

CN215903450U - Underwater nailing gun

Info

Publication number: CN215903450U
Application number: CN202122559800.5U
Authority: CN
Inventors: 吕珍斌; 刘时圆; 王毅; 梁红花; 肖得胜; 朱晓霞; 王官珏
Original assignee: Chongqing Qianwei Technologies Group Co Ltd
Current assignee: Chongqing Qianwei Technologies Group Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-02-25
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses an underwater nail gun, which comprises a gun barrel, wherein a firing pin is arranged in the gun barrel along the length direction of the gun barrel, a firing pin spring is arranged between the firing pin and the tail end of the gun barrel, a buffer sleeve is movably sleeved at the tail end of the gun barrel, and a front cover of the gun barrel is fixedly sleeved at the front end of the gun barrel; have the spacing step of mutual matching between buffer tube front end and the barrel, spacing step is used for limiting the barrel and moves forward, and the firing pin is through firing pin card ball and barrel locking relatively, and the firing pin spring is in the compression gesture, and the firing pin can follow the barrel and slide backward to firing pin card ball release to make firing pin and barrel unblock, and under the firing pin spring action forward the motion percussion be located the place ahead shoot the nail. Satisfy environment user demand under water, the accessible is penetrated the nail and is simultaneously with the rifle body and target object fixed connection for it is fixed that the object carries on under water, and the percussion structure is ingenious, and the simple operation, and can fully guarantee to penetrate the nail performance, have good reliability.

Description

Underwater nailing gun

Technical Field

The utility model belongs to the field of nail guns, and particularly relates to an underwater nail gun.

Background

The nail gun is used for firing a nail shooting bullet, so that the explosive in the nail shooting bullet is combusted to release energy as power, and the nail shooting bullet is driven into a matrix such as steel, concrete and the like to play a fastening role. The application of the nail gun and the matched nail shooting bullet in the fields of building, decoration and the like is more popular. In recent two years, nail guns for underwater work have also appeared, and can be used for underwater nail shooting work. The method fixes components such as steel plates and the like on the surface of a structure by shooting a nail, and replaces the technology of underwater welding, riveting, drilling and tapping connection. For example, in the patent with the application number of "201620911903. X" and the patent name of "underwater nail gun", it is needless to say that the equipment can be directly bound and carried on the nail gun body, and the nail gun body and the carrying equipment can be fixed on a target object by the nail, so that the device has good social value and economic benefit.

However, most of the existing nailing guns for underwater use have the defects of relatively complex triggering structures, poor nail sealing effect, easy damp or wetting of the nails, low reliability and safety and the like.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an underwater nail gun, which solves the problems of complicated nail shooting structure, troublesome operation, poor reliability, etc. in the prior art.

The technical scheme is as follows:

the utility model provides an underwater nail gun, includes the barrel, have in the barrel along the firing pin of its length direction setting, be equipped with the firing pin spring between the tail end of firing pin and barrel, its key lies in: the tail end of the gun barrel is movably sleeved with a buffer sleeve, and the front end of the gun barrel is fixedly sleeved with a gun barrel front cover;

have the spacing step of mutual matching between buffer tube front end and the barrel, spacing step is used for limiting the barrel and moves forward, the firing pin is through firing pin card ball and barrel locking relatively, and the firing pin spring is in the compression gesture, the firing pin can follow the barrel and slide backward to firing pin card ball release to make firing pin and barrel unblock, and under firing pin spring action forward the motion percussion be located the place ahead shoot the nail.

Scheme more than adopting, the barrel, the firing pin, firing pin card ball and buffer tube constitute front end trigger structure, only contact and produce certain pressure with the target object when the barrel front end promptly, make the barrel wholly move one section distance rear accessible firing pin firing nail backward, traditional attacker trigger structure relatively, this kind of structure is more suitable for among the complex environment under water, because will touch just can the firing, so and the target object between be connected the reliability higher, avoid exterior structure to firing pin direct operation simultaneously, also seal the nail of penetrating more easily, effectively prevent to penetrate the nail and wet, think about ingeniously, and convenient operation.

Preferably, the method comprises the following steps: the barrel includes tail end installation section and front end extension section, tail end installation section external diameter is greater than front end extension section external diameter, the position that is close to tail end installation section on the front end extension section has along its circumference evenly distributed's firing pin lockhole, the firing pin lockhole suits with firing pin card ball, the firing pin tail end have with the arc annular that the firing pin card ball suited. Barrel structure more than adopting, step between tail end installation section and the front end extension section just with spacing step cooperation, be convenient for realize restricting barrel axial displacement direction, meanwhile, when the barrel moves backward, the firing pin card ball also deviates from more easily and realizes the firing pin unblock.

Preferably, the method comprises the following steps: and a sealing boss is arranged in the barrel corresponding to the locking position of the firing pin, the sealing boss protrudes inwards along the radial direction of the barrel, and a second sealing ring matched with the sealing boss is sleeved at the front end of the firing pin. By adopting the scheme, the moving stroke of the firing pin can be limited through the sealing boss, and the fact that the shooting nail is in a relatively independent environment before being used is ensured, so that the shooting nail is prevented from being wetted.

Preferably, the method comprises the following steps: the barrel is characterized in that a sealing tube with a hollow structure is sleeved on the front end extension section, two ends of the sealing tube are in sealing contact with the extension section, the end part of the sealing tube is close to the front end face of the barrel, a pressure relief cavity is formed between the sealing tube and the barrel, and a pressure relief hole communicated with the pressure relief cavity is formed in the position, close to the end part, of the front end of the barrel. Scheme more than adopting, through pressure release chamber and pressure release hole cooperation, realize carrying out the pressure release to the cavity that penetrates in the nail removal stroke, prevent that pressure is too big, and the impact force of penetrating the nail produces the influence or the barrel structure causes destruction, and the leakproofness is fully considered to the sealed tube simultaneously, prevents that liquid from invading, can not exert an influence to penetrating the nail.

Preferably, the method comprises the following steps: the buffer sleeve is characterized in that a second liquid inlet hole is formed in the tail end of the buffer sleeve, a first liquid inlet hole is formed in the barrel and located between the sealing boss and the buffer sleeve, and a third liquid inlet hole is formed in the tail end of the barrel. By adopting the scheme, the balance of the fluid pressure in the front and the back of the firing pin and the front and the back of the gun barrel is facilitated, and the influence of the fluid pressure on respective movement is avoided.

Preferably, the method comprises the following steps: the front end of the gun barrel is embedded with a gun barrel front plug, and a first sealing ring is arranged between the gun barrel front plug and the inner wall of the gun barrel. Scheme more than adopting, cooperation second sealing washer makes to penetrate the nail and place the environment more independent, is favorable to further guaranteeing to penetrate the degree of dryness of nail environment.

Preferably, the method comprises the following steps: the buffer sleeve is provided with a sleeve rear cover arranged in a detachable mode, the gun barrel is provided with a gun barrel rear cover arranged in a detachable mode, the gun barrel rear cover is provided with a linkage component fixedly connected with the gun barrel rear cover, and the linkage component and the gun barrel are coaxially arranged and penetrate through the outer side of the sleeve rear cover. Scheme more than adopting, the installation of barrel inner parts such as buffer spring, firing pin spring of being convenient for improves the equipment convenience, still can use like cooperation such as hub connection ware with other parts through linkage part simultaneously, and other operations are accomplished simultaneously in the percussion, satisfy more application scene demands.

Preferably, the method comprises the following steps: and a safety pin is arranged between the gun barrel and the buffer sleeve. By adopting the scheme, the gun barrel can be prevented from mistakenly touching the object, the percussion condition is caused, and only after the safety pin is pulled out, the gun barrel and the buffer sleeve can axially move.

Compared with the prior art, the utility model has the beneficial effects that:

the underwater nail gun provided by the utility model meets the use requirements of an underwater environment, the gun body and a target object can be fixedly connected through the nail shooting, the underwater nail gun is used for carrying and fixing the underwater object, the percussion structure is ingenious, the operation is convenient, the nail shooting performance can be fully ensured, and the underwater nail gun has good reliability.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the nail gun;

FIG. 3 is a perspective view of the barrel;

FIG. 4 is a cross-sectional view of the barrel;

fig. 5 is a schematic view of the striker pin structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, the underwater nail gun mainly includes a barrel 220, a buffer sleeve 230 movably sleeved on a rear end of the barrel 220, and a firing pin 240 disposed inside the barrel 220, wherein a firing pin spring 250 is disposed between the firing pin 240 and the rear end of the barrel 220, and a barrel front cover 224 is sleeved on a front end of the barrel 220.

The front end of the buffer sleeve 230 and the barrel 220 have a mutually matched limit step 231, the limit step 231 is used to prevent the movement of the front end of the barrel 220, the firing pin 240 is locked with respect to the barrel 220 by the firing pin ball 260, and the firing pin spring 250 is in a compressed state, the barrel 220 can move backwards until the firing pin ball 260 enters the buffer sleeve 230 to be released, so that the firing pin 240 is unlocked with the barrel 220.

Specifically, buffer tube 230 and barrel 220 are both generally cylindrical, and the two are arranged coaxially, barrel 220 is generally hollow T-shaped in axial cross section, and includes tail end installation section 221 and front end extension 222, tail end installation section 221 external diameter is greater than front end extension 222 external diameter, buffer tube 230's tail end has sleeve pipe back cover 232 with detachable mode setting, tail end installation section 221's external diameter suits with buffer tube 230's internal diameter, and all lie in buffer tube 230, be equipped with buffer spring 233 between tail end installation section 221 and the sleeve pipe back cover 232, tail end installation section 221 offsets with spacing step 231 (namely buffer tube 230's front end inner wall) under buffer spring 233's effect.

The front end extension section 222 is provided with firing pin locking holes 223 evenly distributed along the circumferential direction thereof at a position close to the tail end mounting section 221, the firing pin locking holes 223 are adapted to the firing pin ball 260, the tail end of the firing pin 240 is provided with an arc-shaped annular groove 241 adapted to the firing pin ball 260, in an initial state, the tail end mounting section 221 is abutted against the limit step 231 under the action of the buffer spring 233, the position of the firing pin ball 260 in the firing pin locking hole 223 is limited by the end wall of the buffer sleeve 230, so that the portion of the firing pin ball 260 is clamped in the arc-shaped annular groove 241, the firing pin 240 is locked, when the front end of the barrel 220 is subjected to axial pressure, the barrel 220 integrally comprises inner parts which move towards the sleeve rear cover 232, the firing pin ball 260 moves into the inner cavity of the buffer sleeve 230 along with the movement thereof without being limited by the end wall, at this time, the firing pin spring 250 releases to apply instant thrust to the firing pin 240, and the firing pin ball 260 is released from the arc-shaped annular groove 241, causing firing pin 240 to move forward and thereby fire the forward located firing pin 290.

In order to ensure that loading of firing pin 290 is substantially protected from environmental fluids, in this embodiment, a barrel front plug 229 is further provided at the front end of barrel 220, barrel front plug 229 is inserted into barrel 220 with a first sealing ring 2290 therebetween, and barrel front cap 224 is screwed onto the outer side of the end of barrel 220 with a coupling force greater than the impact force of firing pin 290 to ensure that the tail of firing pin 290 remains in barrel 220 after firing, barrel front cap 224 abuts barrel front plug 229 to prevent liquid from penetrating into the interior of barrel 220 from the front end, and at the same time, barrel 220 is provided with a sealing boss 228 corresponding to the initial position of firing pin 240, sealing boss 228 is protruded radially inward along barrel 220 and has a through hole just enough for the front end of firing pin 240 to pass through to contact with firing pin 290, sealing boss 228 primarily limits the stroke of firing pin 240, and a second sealing ring 242 is provided between firing pin 240 and sealing boss 228, thereby ensuring that the shooting nail 290 is in a relatively independent environment in the initial state and preventing gunpowder from being wetted or affected with moisture.

In addition, in consideration of the influence of pressure on each component in the firing process, the embodiment is optimized correspondingly, a sealing tube 270 in a hollow structure is sleeved on the front end extension section 222, two ends of the sealing tube 270 are in sealing contact with the extension section 222, a third sealing ring 271 is arranged between the sealing tube 270 and the barrel 220, a pressure relief cavity 272 is formed between the sealing tube 270 and the barrel 220, the front end of the sealing tube 270 is close to the front end face of the barrel 220, a pressure relief hole 225 communicated with the inside of the pressure relief cavity 272 is formed in the position, close to the end part, of the front end of the barrel 220, the volume of the pressure relief cavity 272 is larger than or equal to the volume of a compression space moved after the shooting nail 290 is fired, and the resistance influence generated by air compression is effectively reduced.

Similarly, in order to reduce the influence of the environmental pressure on the firing pin spring 250, in this embodiment, a first fluid inlet hole 226 is formed on the barrel 220, the first fluid inlet hole 226 is located between the sealing boss 228 and the firing pin locking hole 223, a second fluid inlet hole 234 is formed on the casing rear cover 232, and a third fluid inlet hole (not shown) is formed at the tail end of the barrel 220, so as to ensure the pressure balance between the two sides of the firing pin spring 250 and the two sides of the firing pin 240 in the initial state, and avoid the liquid resistance during the moving process.

From using safety angle, the tail end of barrel 220 is equipped with safety ring groove 227 in this embodiment, and the cross-section of safety ring groove 227 is the rectangle, is provided with the safety pin hole on corresponding buffer sleeve 230, and under the initial condition, when barrel 220 offsets with the end wall of buffer sleeve 230 under buffer spring 233 effect, the safety pin hole just right is safe ring groove 227, can lock the two with safety pin 280 this moment, and during the use, after must pulling out safety pin 280, barrel 220 just can slide relatively buffer sleeve 230 axial.

In this embodiment, the rear end of the barrel 220 has a barrel rear cover detachably disposed thereon, and a rod-shaped linkage member 210 is fixedly connected to the barrel rear cover, the linkage member 210 is disposed coaxially with the barrel 220 and extends backwards along the axial direction of the barrel 220 to penetrate the outer side of the buffer sleeve 230, so as to perform linkage with other mechanisms when the barrel 220 slides, and synchronously complete a plurality of actions.

Referring to the underwater nailer shown in fig. 1 to 5, in use, an object to be mounted is fixed to the cushion sleeve 230, and after being moved to the vicinity of a target object, the safety pin 280 may be withdrawn, and the barrel cap 224 may be manually or mechanically engaged with the target object by grasping the bumper sleeve 230, compressing the barrel 220 to move backward until the firing pin 240 is unlocked from the barrel 220, the firing pin 240 may be moved forward under the action of the firing pin spring to fire the leading shot pin 290, the shot pin 290 may be substantially T-shaped, the front end of which penetrates the barrel front block 229 and the barrel front cap 224 and then is driven into the target object, and the rear end of which is restrained by the barrel front block 229 and the barrel front cap 224 and still located in the barrel 220, thereby fixing the entire nail gun to the target object, the carried object and the target object are relatively fixed, and if the carried object and the target object need to be reused later, only the firing pin 240 needs to be installed again, and the barrel front plug 229 and the barrel front cover 224 need to be replaced.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. A marine nailer comprising a barrel (220), said barrel (220) having a firing pin (240) disposed along a length of said barrel (220), a firing pin spring (250) disposed between said firing pin (240) and a rear end of said barrel (220), said marine nailer characterized by: a buffer sleeve (230) is movably sleeved at the tail end of the gun barrel (220), and a gun barrel front cover (224) is fixedly sleeved at the front end of the gun barrel (220);

the buffer sleeve (230) has spacing step (231) that matches each other between front end and barrel (220), spacing step (231) are used for restricting barrel (220) and move forward, firing pin (240) pass through firing pin card ball (260) and barrel (220) relative locking, and firing pin spring (250) are in the compression gesture, firing pin (240) can follow barrel (220) and slide backward to firing pin card ball (260) release to firing pin card ball (240) unblock, and move forward under firing pin spring (250) and fire the shooting pin that is located the place ahead.

2. The underwater nailer of claim 1 wherein: barrel (220) include tail end installation section (221) and front end extension (222), tail end installation section (221) external diameter is greater than front end extension (222) external diameter, the position that is close to tail end installation section (221) on front end extension (222) has along its circumference evenly distributed's firing pin lockhole (223), firing pin lockhole (223) suit with firing pin card ball (260), firing pin (240) tail end have with arc annular groove (241) that firing pin card ball (260) suited.

3. The underwater nail gun as claimed in claim 1 or 2, wherein: a sealing boss (228) is arranged in the barrel (220) corresponding to the locking position of the firing pin (240), the sealing boss (228) protrudes inwards along the radial direction of the barrel (220), and a second sealing ring (242) corresponding to the sealing boss (228) is sleeved at the front end of the firing pin (240).

4. The underwater nailer of claim 2 wherein: the barrel pressure relief device is characterized in that a sealing tube (270) which is of a hollow structure is sleeved on the front end extension section (222), two ends of the sealing tube (270) are in sealing contact with the extension section (222), the end part of the sealing tube is close to the front end face of the barrel (220), a pressure relief cavity (272) is formed between the sealing tube (270) and the barrel (220), and a pressure relief hole (225) which is communicated with the pressure relief cavity (272) is formed in the position, close to the end part, of the front end of the barrel (220).

5. The underwater nailer of claim 3 wherein: the tail end of the buffer sleeve (230) is provided with a second liquid inlet hole (234), the barrel (220) is provided with a first liquid inlet hole (226), the first liquid inlet hole (226) is positioned between the sealing boss (228) and the buffer sleeve (230), and the tail end of the barrel (220) is provided with a third liquid inlet hole.

6. The underwater nailer of claim 3 wherein: the front end of the gun barrel (220) is embedded with a gun barrel front plug (229), and a first sealing ring (2290) is arranged between the gun barrel front plug (229) and the inner wall of the gun barrel (220).

7. The underwater nailer of claim 1 wherein: the buffer sleeve (230) is provided with a sleeve rear cover (232) which is arranged in a detachable mode, the gun barrel (220) is provided with a gun barrel rear cover which is arranged in a detachable mode, the gun barrel rear cover is provided with a linkage component (210) which is fixedly connected with the gun barrel rear cover, and the linkage component (210) and the gun barrel (220) are coaxially arranged and penetrate through the outer side of the sleeve rear cover (232).

8. The underwater nailer of claim 1 wherein: a safety pin (280) is arranged between the barrel (220) and the buffer sleeve (230).