TW202019639A - Nail gun that comprises a silencer and a barrel assembly sequentially connected from a front side to a rear side, and a striking pin assembly disposed in the barrel assembly - Google Patents

Abstract

The present invention relates to a nail gun, which comprises, sequentially connected from a front side to a rear side, a silencer and a barrel assembly. A striking nail assembly is received in the barrel assembly and comprises a casing, a firing member, an insertion pin, and an advancing spring. The firing member is disposed in the casing. The insertion pin penetrates through a striking portion and movably protrudes from opposite sides of the casing. The advancing spring is arranged at a rear end of the casing. During the operation of this invention, the striking nail is pushed forward by the advancing spring to ignite the gunpowder of a nail gun. And by adjusting the position of the insertion pin and the striking part, the movement distance of the striking nail being ignited forward is not restricted by the insertion pin, and meanwhile, the insertion pin that acts as a position-limiting device stops the entire firing action when it is struck, the striking part will hit the casing together, therefore it can share the impact force of the insertion pin and then reduce the probability of deformation when the insertion pin is used.

Description

Nail gun

This creative department relates to a hand tool, especially a nail gun fired with gunpowder.

The nail gun is a firing device, which can strike the nail installed in the nail gun by mechanical force to hit the gunpowder arranged at the rear end of the nail. The gunpowder is ignited after being hit, so that the nail can be fired and fired. The front end of the nail gun is fired.

The prior art nailing has different sizes according to different needs. In order to match various sizes of nailing, early nailing guns need to be equipped with multiple sizes to match various nails, but due to this one-to-one cooperation The cost is too high, so later designed an adjustment ring that can be fitted between the muffler tube and the inner sleeve of the nail gun. By adding adjustment rings of different sizes, the user only needs to be equipped with the shortest Silencer tube of the size of the nail, and as it changes the length of the nail, further increase the adjustment ring.

Please refer to FIG. 11 and FIG. 12, to be more precise, the improved nail gun includes a muffler tube 91, an inner sleeve 92, an outer sleeve 93, a base 94 and A striker group 95, the muffler tube 91 is provided at the front end of the inner sleeve 92 along a front-rear direction L1, the inner sleeve 92 is provided at the front end of the outer sleeve 93, and is partially slidably arranged in the outer sleeve 93 The needle set 95 is disposed in the outer sleeve 93 and can move forward through the inner sleeve 92 and the muffler tube 91, and then protrudes out of the muffler tube 91, and the base 94 tube is detachably disposed at the rear end of the outer sleeve 93 .

Further, the firing pin group 95 includes a housing 951, a firing pin 952, a latch 953, a return spring 954, a pushing spring 955, and a firing block 956. The firing pin 952 is accommodated in the housing 951, and The housing 951 can drive the striker 952 to slide forward in the front-rear direction L1 relative to the outer sleeve 93 and protrude out of the muffler tube 91; the latch 953 is movably disposed in the outer sleeve 93 forward and backward, and the return spring 954 is disposed in the latch Between the 953 and the inner sleeve 92, the return spring 954 continuously pushes the inner sleeve 92 forward; the opposite ends of the propulsion spring 955 abut the striker 952 and the inner wall surface of the base 94, respectively, and when the propulsion spring 955 receives When compressing, it continuously pushes the firing pin 952 forward toward the outside of the muffler tube 91; the firing block 956 is provided on the firing pin 952, and can slide forward and backward out of the housing 951, when the firing block 956 is completely folded in When it is inside the housing 951, it can cause the striker 952 to be pushed forward relative to the housing 951 by the pushing spring 955.

However, when using a nailing gun of the prior art, a nail filled with gunpowder at the end is put into the nailing gun through the muffler 91, and the nail is pressed against the wall to be selected, and then used By gradually pushing the nail gun towards the wall, the outer sleeve 93 will compress the return spring 954 and the propulsion spring 955, and move forward relative to the inner sleeve 92, when the outer sleeve 93 moves forward to the firing block 956 After being squeezed by the protrusion on the inner wall surface of the outer sleeve 93 and completely retracted into the housing 951, the firing pin 952 and the housing 951 can relatively move in the front-rear direction L1. The needle 952 advances forward, and through its compressed spring position, the striker 952 can be pushed out to hit the gunpowder to achieve the effect of firing.

However, the prior art nailing gun does not change the rear propulsion structure at the same time as the front muffler tube is changed, so that when the user sets the adjustment ring 98 behind the muffler tube 91, he wants to advance forward, The rear latch 953 will compress against the wall surface on the rear side of the inner sleeve 92 when the inner sleeve 92 is compressed backwards. In other words, the moving distance of the inner sleeve 92 compressed backwards will be restricted by the latch 953 and cannot be retracted back to The maximum movable position, due to this structural limitation, causes the internal structure of the nail gun equipped with the adjusting ring 98 to be unable to completely move to the optimal firing position when firing, such as the shell of the needle set 95 The front end of the body 951 cannot continue to advance beyond the silencer tube 91 at the time of firing to reach the end of the impact of the complete impact nail, thus causing the nail to not receive more propulsion force, and thus cannot be fully nailed to the corresponding In view of this, the prior art nail gun has its defects.

In view of the shortcomings and deficiencies of the prior art, this creation provides a nail gun that changes the position of the bolt and the forward and backward movement of the striker, so that the front end of the striker can help absorb the force of the impact and reduce the possibility of deformation of the bolt.

In order to achieve the above-mentioned creative purpose, the technical means adopted in this creation is a nail gun, which contains a muffler tube; a sleeve group, which is arranged behind the muffler tube in a front-back direction, and the sleeve group contains An inner sleeve, which is arranged at the rear end of the muffler tube; an outer sleeve, which is movably sleeved at a rear end of the inner sleeve along the front and back directions in the front-rear direction; a base, which is arranged at A rear end of the outer sleeve; a striker set, which is housed in the sleeve set, and the striker set includes a housing, which is disposed behind the muffler tube in the front-rear direction, and is selectively in contact with The inner wall surface of the rear side of the muffler tube abuts; a firing piece, which is movably arranged in the outer casing in the front-rear direction, and the firing piece contains a striker portion; an impact portion, which is along the front-rear direction It is arranged behind the needle strike portion, and the impact portion selectively abuts against the inner wall surface of the front side of the housing; a pin, which penetrates the impact portion, and can move in the front-rear direction to protrude from the opposite of the housing Two sides; a firing block, which protrudes above the impact part, and the firing block selectively extends and protrudes from the outer shell; a return spring, which is sleeved on the outer shell, and the return spring continues to cover the inner sleeve The cylinder is pushed in the front-rear direction toward the direction of the muffler tube; a propulsion spring is provided at the rear end of the housing, and the propulsion spring continuously pushes the firing member in the front-rear direction toward the direction of the muffler tube.

The advantage of this creation is that by readjusting the impact sequence and main impact components of this creation at the time of firing, the final position of the protruding needle part protruding forward is reached, and the force of impact of the bolt during use is reduced; more accurately It is said that at the moment of firing, the impact part will first hit the inner wall surface of the housing before the latch pin further hits the second shell, so the distance that the striker protrudes forward will not be limited by the moving distance of the latch pin, and It can protrude beyond the muffler tube to achieve the purpose of prolonging its forward displacement; on the other hand, making the impact part bear the impact force of the bolt during impact can reduce the possibility of the bolt bending due to the excessive impact force, so this creation Not only can the bolt be used for a longer period of time, but it is also less prone to the need to saw the outer sleeve and destroy the structure of the nail gun due to the deformation of the bolt, which can increase the overall life of the creation.

Further, the aforementioned nail gun further includes an adjustment ring sandwiched between the inner sleeve and the outer sleeve.

Further, in the aforementioned nail gun, the return spring is in contact with the outer wall surface of the housing.

The technical means adopted by the creation to achieve the intended creation purpose are further described below in conjunction with the drawings and preferred embodiments of the creation.

Please refer to FIG. 1, FIG. 2 and FIG. 3, the nailing gun of this creation includes a muffler tube 10, a sleeve group 20 and a needle assembly 30. The sleeve group 20 is disposed on the muffler tube along a front-back direction L1 At the rear of 10, the needle group 30 is accommodated in the sleeve group 20, and selectively protrudes out of the muffler tube 10 in the front-rear direction L1.

More precisely, the sleeve group 20 includes an inner sleeve 21, an outer sleeve 22 and a base 23. The inner sleeve 21, the outer sleeve 22 and the base 23 are arranged from front to back along the front-back direction L1. The inner sleeve 21 is disposed behind the muffler tube 10. More precisely, in this embodiment, the inner sleeve 21 and the muffler tube 10 are connected in a screwed manner.

The outer sleeve 22 is arranged behind the inner sleeve 21, more precisely, it is sleeved on a rear end 211 of the inner sleeve 21 in a movable manner in the front-rear direction L1, and the base 23 is arranged on the outer sleeve The rear end of 22, and in this embodiment, the base 23 and the outer sleeve 22 are connected in a screwed manner.

Please further refer to FIG. 3 and FIG. 4, an activation protrusion 221 protrudes from the inner wall surface of the outer sleeve 22. In this embodiment, the activation protrusion 221 is detachably connected to the outer sleeve 22, but its Without being limited to this, the starting protrusion 221 and the outer sleeve 22 may also have other connection relationships.

Please refer to FIG. 10, in the preferred embodiment of the present invention, an adjustment ring 24 is further provided between the muffler tube 10 and the inner sleeve 21, which is sleeved on the muffler tube 10, when the inner sleeve 21 faces forward When screwed to the rear of the muffler tube 10, the muffler tube 10 and the inner sleeve 21 will sandwich the adjusting ring 24 in the middle, further extending the length between the muffler tube 10 and the inner sleeve 21.

Please refer to FIG. 3 and FIG. 4, the firing pin group 30 is accommodated in the sleeve group 20, and includes a housing 31, a firing member 32, a latch 33, a firing block 34, a return spring 35 and a push Spring 36.

The outer casing 31 is accommodated in the sleeve group 20, more precisely, the outer casing 31 is disposed inside the inner sleeve 21 and the outer sleeve 22, and the firing member 32 is movably disposed in the outer casing 31 along the front-rear direction L1, and The firing element 32 includes a firing portion 321 and a striking portion 322. The striking portion 322 is disposed behind the firing portion 321 in the front-rear direction L1, and the striking portion 322 selectively abuts the inner wall surface on the front side of the housing 31.

Referring to FIGS. 4 and 7, the latch 33 penetrates the striker 32 through the impact portion 322, and protrudes through opposite sides of the housing 31 movably in the front-rear direction L1.

The firing block 34 protrudes from the striking portion 322, and it selectively extends and protrudes from the housing 31, and the position of the firing block 34 corresponds to the position of the activation protrusion 221 in the outer sleeve 22, and the firing block 34 can be subjected to The pressing of the activation protrusion 221 is compressed back into the housing 31, and when the firing block 34 is compressed back into the housing 31, the needle striker 321 and the striker 322 can move relative to the housing 31 in the front-rear direction L1.

The return spring 35 is sleeved on the outer casing 31. More precisely, in this embodiment, the return spring 35 is provided to be in close contact with the outer wall surface of the outer casing 31, and the return spring 35 continuously keeps the inner sleeve 21 in the front-rear direction L1 Push toward the muffler 10.

The propulsion spring 36 is provided at the rear end of the housing 31, and the propulsion spring 36 continuously pushes the firing member 32 toward the direction of the muffler tube 10 in the front-rear direction L1.

The following is a brief description of the creation process and its advantages.

Please refer to FIG. 4, FIG. 5 and FIG. 6, when this creation is used, it is used together with a nail 96, the tail end of the nail 96 is filled with gunpowder 961, and the user Put the end of gunpowder 961 into the muffler tube 10, and make the nail 96 protrude out of the muffler tube 10, and then attach the original creation and the nail 96 to the wall 97 to be operated.

After the fitting is completed, the user gradually applies force to the wall 97 along the front-back direction L1, and the return spring 35 and the push spring 36 provided in the inner sleeve 21 and the outer sleeve 22 will be gradually compressed, thereby causing The outer sleeve 22 moves closer to the direction of the muffler tube 10.

As the outer sleeve 22 gradually moves forward, the activation protrusion 221 in the outer sleeve 22 will gradually move forward with the outer sleeve 22, due to the position of the activation protrusion 221 and the firing block 34 of the firing pin group 30 Correspondingly, therefore, when the starting protrusion 221 contacts the firing block 34, as the outer sleeve 22 continues to move forward, the starting protrusion 221 will squeeze the firing block 34, and then squeeze the firing block 34 into the housing 31 After the firing block 34 is squeezed into the housing 31, the originally compressed propulsion spring 36 can push the firing member 32 (including the needle part 321 and the impact part 322) forward in the front-back direction L1 relative to the housing 31, and then The striker portion 321 strikes forward to the gunpowder 961 at the tail end of the nail 96, and after the impact, the gunpowder 961 will be ignited, and the propelling force generated by the ignition will push the nail 96 into the wall 97 for the purpose of firing.

Please refer to FIG. 7 and FIG. 8. Further, after the creation is fired, the firing member 32 will advance forward until the impact portion 322 hits the inner wall surface of the front side of the housing 31, and the pin 33 will impact on the impact portion 322 When the inner wall surface on the front side of the housing 31 hits the wall surface of the housing 31 or the outer sleeve 22, the entire firing process is terminated.

This creation has the following advantages.

First, please refer to FIG. 7 and FIG. 8. After firing, the striking part 322 and the latch 33 are struck at the same time at the same time, so that the entire firing process is terminated. In other words, the striking part 322 and the needle part 321 are along The distance that L1 moves forward in the front-rear direction will not be stopped because the latch 33 is first hit, so that it can further retain the ability to move forward a distance, so after hitting the gunpowder 961, the striker 321 can continue to advance the gunpowder 961, to increase the force and depth of the needle part 321 impacting the gunpowder 961, by which the gunpowder 961 can be more completely ignited, thereby reducing the probability that the nail 96 cannot be fully nailed into the corresponding wall 97 due to insufficient explosion and propulsive force .

Secondly, since this creation prevents the thrust path of the striking portion 321 during firing from being restricted by other components, even if the user sets an adjustment ring 24 extending the length of the muffler 10 at the front end of this creation, the When the nail 96 is not placed, the front end of the firing member 32 can still protrude out of the muffler tube 10 in other words, in the case where the nail 96 is placed and the adjusting ring 24 is sleeved, the firing member 32 is limited The nail 96 cannot be protruded beyond the muffler tube 10, but the nail 96 can still be pushed forward continuously, so that it receives a complete propelling force, thereby improving the success rate of the nail 96 installation.

Third, as mentioned in the first point, when the plug 33 is impacted, the impact portion 322 will also be impacted at the same time, so the plug 33 is not the only component that bears the impact force, thereby reducing the plug 33 under long-term use The shortcomings of easy deformation can not only improve the durability of the original creation, but also reduce the accidental deformation of the bolt 33 during use, and the entire outer sleeve 22 must be sawed out to remove the deformed bolt 33.

The above is only the preferred embodiment of the creation, and does not limit the creation in any way. Although the creation has been disclosed in the preferred embodiment as above, it is not intended to limit the creation. Generally, a knowledgeable person can use the technical content disclosed above to make some changes or modifications as an equivalent embodiment of an equivalent change without departing from the scope of the creative technical solution. However, if the content does not deviate from the creative technical solution, Any simple modifications, equivalent changes, and modifications to the above embodiments based on the technical essence of this creation still fall within the scope of this creative technical solution.

10: Silencer 20: sleeve group 21: inner sleeve 211: backend 22: Outer sleeve 221: Start bump 23: Dock 24: adjustment ring 30: Needle set 31: Shell 32: firing piece 321: Needle part 322: impact part 33: Latch 34: Firing block 35: return spring 36: Propulsion spring 91: Silencer 92: inner sleeve 93: outer sleeve 94: Dock 95: Needle set 951: Shell 952: Needle 953: Latch 954: return spring 955: Propulsion spring 956: Firing block 96: nailing 961: Gunpowder 97: Wall 98: adjustment ring L1: front and back direction

Figure 1 is the stereoscopic appearance of this creation. Figure 2 is an exploded view of the components of this creation. Fig. 3 is an exploded view of another perspective element of this creation. Figure 4 is a three-dimensional cross-sectional view of this creation. FIG. 5 is a continuous action diagram (1) of FIG. 4. Fig. 6 is a continuous action diagram (2) of Fig. 4. Fig. 7 is a continuous action diagram (3) of Fig. 4. FIG. 8 is a continuous action diagram (4) of FIG. 4. Figure 9 is a plan view of this creation. Fig. 10 is a cross-sectional view of the creation equipped with an adjustment ring. 11 is a cross-sectional view of the state of use of the nailing gun of the prior art. 12 is a cross-sectional view of a state of use of a prior art nailing gun equipped with a collar.

10: Silencer

20: sleeve group

21: inner sleeve

22: Outer sleeve

23: Dock

Claims (3)

A nail gun includes a muffler tube; a sleeve group is disposed behind the muffler tube in a front-rear direction, and the sleeve group includes an inner sleeve disposed at the rear end of the muffler tube; An outer sleeve, which is movably sleeved on a rear end of the inner sleeve along the front-rear direction along the front-rear direction; a base, which is arranged on the rear end of the outer sleeve; a needle set, which accommodates Placed in the sleeve group, and the firing pin group includes an outer shell, which is arranged behind the muffler tube in the front-rear direction and selectively abuts against the inner wall surface of the rear side of the muffler tube; , Which is movable in the front-rear direction and is arranged in the casing, and the firing piece includes a striker portion; an impact portion, which is arranged behind the needle strike portion in the front-rear direction, and the impact portion is selectively The ground is in contact with the inner wall surface of the front side of the shell; a pin that penetrates the impact part and can protrude through the opposite sides of the shell in the forward and backward directions; a firing block that protrudes from the impact part, And the firing block selectively extends and protrudes from the outer shell; a return spring is sleeved outside the outer shell, and the return spring continuously pushes the inner sleeve in the front-rear direction toward the direction of the muffler tube; A propulsion spring is provided at the rear end of the housing, and the propulsion spring continuously pushes the firing member in the front-rear direction toward the direction of the muffler tube. The nail gun of claim 1, further comprising an adjustment ring sandwiched between the inner sleeve and the outer sleeve. The nail gun according to claim 1 or 2, wherein the return spring is in contact with the outer wall surface of the housing.

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