CN208163544U

CN208163544U - Gunpowder machine hammer

Info

Publication number: CN208163544U
Application number: CN201820691097.9U
Authority: CN
Inventors: 李仲恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-10
Filing date: 2018-05-10
Publication date: 2018-11-30
Anticipated expiration: 2028-05-10

Abstract

A kind of gunpowder machine hammer includes barrel assembly, lever, trigger device, percussion lock and piston rod group.The barrel assembly includes outer tube and is movably arranged in the inner tube of the outer tube.The piston rod group includes lance part and package assembly, the lance part has mobile jib section, and it is connected to the endpiece of the one end of the mobile jib section close to the percussion lock, the outer diameter of the endpiece is greater than the mobile jib section and is forming the shoulder tapered towards the direction outer diameter of the mobile jib section with the junction of the mobile jib section, the package assembly is sheathed on the endpiece, and there is the inner wall for being posted by the lance part, and the inner wall forms the block face matched with the shoulder shape, the block face on the moving direction when the piston rod group is driven to supply the shoulder to abut against.The effect of being avoided whereby in the junction of piston rod group various outer diameter size being broken because stress is concentrated, and the lance part can be prevented to be detached from, reach the service life for improving piston rod group.

Description

Gunpowder machine hammer

Technical field

The utility model relates to a kind of gunpowder machine hammers, more particularly to a kind of gunpowder machine hammer of modified piston bar group.

Background technique

TaiWan, China patent No. M369839 (U.S. corresponds to case US 8042719) discloses a kind of gunpowder nail gun, mainly Comprising one in gun external form ontology, one can be arranged in the inner tube of the ontology movably forward and backward, one can install movably forward and backward Piston rod, grain and the percussion to trigger the grain for being set to said inner tube one end in said inner tube Device.It blows up gunpowder when the grain is triggered by the percussion lock, the impact that the piston rod can be exploded is forward A nail hitting is pushed, an object to be installed is squeezed into the nail hitting, and the object to be installed is fixed on a concrete structure Or one steel etc hard substrate.Since the impact strength of gunpowder nail gun is very powerful, for example, it is black using 6.8x18 bore Color ammunition, ceiling capacity are 883 joules, are the energy of about 10 times of other energy source nail guns or more, therefore are used for a long time pair The impact resistance of the piston rod becomes greatly test.The general most common damage, is exactly in stress raiser (major diameter and central diameter Joint or central diameter and path joint) fracture.In order to improve this problem, (U.S. is corresponding by TaiWan, China patent No. M508415 Case US 9833889) a kind of nail gun trigger combination is disclosed, piston rod is divided into two-piece type and is combined, and in such a way that welding or the fourth of the twelve Earthly Branches connect In conjunction with so then avoiding stress collected state, service life when greatly improving the normal use of piston rod.However, such combination side Formula is but unfavorable for the situation (such as being used in a softer or hollow substrate) that piston rod uses in an abnormal situation.Due to described Hollow substrate is born almost without the energy for absorbing piston rod by the joint of central diameter and path, so then be easy to cause institute It states two pieces and disengages damage mutually.

Summary of the invention

Therefore, a wherein purpose of the utility model is providing a kind of gunpowder that can improve piston rod group service life Machine hammer.

Then, the utility model gunpowder machine hammer is to hit by gunpowder as power source transmitting in some state sample implementations Nail, and include：Barrel assembly, lever, trigger device, percussion lock and piston rod group.The barrel assembly includes outer tube, and Movably it is arranged in the inner tube of the outer tube.The lever includes the rear seat for being connected to described outer tube one end, and is connected to The hand-held part of the rear seat.The trigger device is set to the hand-held part.The percussion lock is located at the rear seat simultaneously It can be interlocked by the trigger device and be suitable for firing the gunpowder.The piston rod group is set to said inner tube, and can be by institute State the driving of the strength after gunpowder is fired.The piston rod group includes lance part and package assembly, and the lance part, which has, to be suitable for The mobile jib section of the nail hitting is hit, and is connected to the endpiece of the one end of the mobile jib section close to the percussion lock, the endpiece Outer diameter be greater than the mobile jib section and tapered forming the direction outer diameter towards the mobile jib section with the junction of the mobile jib section Shoulder, the package assembly is sheathed on the endpiece, and has the inner wall for being posted by the lance part, and the inner wall is formed The block face matched with the shoulder shape, the block face is to the mobile side when the piston rod group is driven It is abutted against upwards for the shoulder.

In some state sample implementations, the endpiece forms the external thread part to be spirally connected with the inner wall of the package assembly.

In some state sample implementations, the external thread part has multiple spaced Luo Gu, and the fillet of each Luo Gu Greater than 0.25 millimeter.

In some state sample implementations, the external thread part and the shoulder are at a distance.

In some state sample implementations, the package assembly is to be welded to each other with the lance part.

In some state sample implementations, the hardness of the package assembly is less than the hardness of the lance part.

In some state sample implementations, mutually reinforce combining using a soft material between the lance part and the package assembly.

In some state sample implementations, the soft material is solder, and the package assembly is to be welded to each other with the lance part.

In some state sample implementations, the soft material is colloid, and the package assembly and the lance part are mutual gluings.

The beneficial effect of the utility model is：By two that the piston rod group is divided into that package assembly adds lance part The design of part formula is avoided in the junction of piston rod group various outer diameter size because stress concentration is broken, and works as the gunpowder Machine hammer is accidentally used in soft base material, and the shoulder of the lance part can strike against the block face of the inner wall, described The effect of therefore package assembly can prevent the lance part to be detached from, reach the service life for improving piston rod group.

Detailed description of the invention

The others feature and effect of the utility model will be clearly presented in the embodiment referring to schema, wherein：

Fig. 1 is a perspective view of an embodiment of the utility model gunpowder machine hammer；

Fig. 2 is a cross-sectional view of the embodiment；

Fig. 3 is a stereogram exploded view of the embodiment, and part of component is not shown；

Fig. 4 is a partial enlarged view of Fig. 2, and the junction of the endpiece and a mobile jib section that illustrate the embodiment forms one The shoulder tapered towards the direction outer diameter of the mobile jib section；And

Fig. 5 is a cross-sectional view, illustrates that an inner tube of the embodiment is pulled out towards the direction far from a rear seat to reset State a piston rod group of embodiment and the gunpowder that filling is new.

Specific embodiment

It is one of the utility model gunpowder machine hammer 100 embodiment refering to fig. 1 to Fig. 3, a gun moulding is presented in appearance, And it is suitable for emitting a nail hitting (not shown) as power source by a gunpowder (not shown), and include that a barrel assembly 1, one is held Handle 2, a trigger device 3, a percussion lock 4, a piston rod group 5, a buffering kit 6, a resetting apparatus 7, a silencing means 8, An and shield 9.

The barrel assembly 1 is arranged in the outer tube 11 including an outer tube 11 and one and can be along the 11 length side of outer tube The inner tube 12 moved forwards, backwards.The outer tube 11 has one first tube body 111, is located at first tube body 111 opposite two End one first front end 112 and one first rear end 113, one be formed in 111 top side of the first tube body fluting 114, Two the first gas ports 115 and one for being formed in 111 bottom side of the first tube body are formed in 111 bottom of the first tube body The perforation 116 of side and neighbouring first front end 112.Said inner tube 12 has one to define the second of a channel space 122 Tube body 121, one second front end 123 and one second rear end 124, one positioned at 121 opposite end of the second tube body Be formed in 121 bottom side of the second tube body kerve 125 and one be located at second rear end 124 gun muzzle 126.It is described Lever 2 includes that the rear seat 21 of first rear end 113 for being connected to the outer tube 11 and one are connected to the rear seat 21 are suitable for the hand-held part 22 of operator gripping.

The trigger device 3 is set to the hand-held part 22, and including a lock 31, a unlock piece 32, a locating part 33 and blow outbox 34.31 two sides of lock are born against in the percussion part 34 and the hand-held part 22, avoid operating Person, which is not yet directed at an object (not shown) to be installed and accidentally touches the percussion part 34, causes nail hitting to fire.The unlock piece 32 is compared with institute Percussion part protrusion is stated, and in contrast to the inclined-plane 321 and is suitable for operator's pressing with an inclined-plane 321 and one Press surface 322.The locating part 33, which can move back and forth up and down to, to be set to the inclined-plane 321 and is connected to the lock 31. When operator's determination will fire nail hitting, the unlock piece 32 need to be pressed, the locating part 33 can be along the inclined-plane 321 toward tiltedly Top is mobile, and the lock 31 is driven up to move, until the press surface 322 and the percussion part 34 of the unlock piece 32 Flush, lacked on the right side of the lock 31 hand-held part 22 against and expose a space, fire described in operator, that is, pressable Part 34 is fired.

The percussion lock 4 is located at the rear seat 21 and is arranged in first rear end 113 of the outer tube 11.Institute State the coyote hole that one is defined between percussion lock 4 and second rear end 124 of said inner tube 12 for gunpowder accommodating 127.The coyote hole 127 is connected via described gun muzzle 126 with the channel space of said inner tube 12 122.When operator presses The percussion part 34 of the trigger device 3, the percussion lock 4 can be interlocked by the trigger device 3 and be suitable for percussion and draw The quick-fried gunpowder, causes the gas expansion in coyote hole 127, and the gas can enter the channel space via described gun muzzle 126 122, it generates a propulsive force and pushes against the piston rod group 5 toward the direction movement far from the rear seat 21 and fire the nail hitting.

The piston rod group 5 includes a lance part 51 and a package assembly 52.Another cooperation has refering to Fig. 4, the lance part 51 There is a mobile jib section 511 that is in elongate shape and being suitable for hitting the nail hitting and one is connected to the mobile jib section 511 and is hit described in The endpiece 512 of one end of transmitting apparatus 4.The outer diameter of the endpiece 512 is greater than the outer diameter of the mobile jib section 511, and is formed with a company It is connected to the mobile jib section 511 and is connected to the shoulder 513 towards the tapered shoulder 513, one of the 511 direction outer diameter of mobile jib section The external screw thread that extension 514 and 124 direction of the second rear end from the extension 514 towards said inner tube 12 are formed Portion 515.The outer peripheral surface of the mobile jib section 511 is parallel to the outer peripheral surface of the extension 514.The external thread part 515 is by institute It states extension 514 and is spaced a distance with the shoulder 513, and there are multiple spaced spiral shell peak 515a and Luo Gu 515b.In order to avoid stress concentration, the fillet of each spiral shell paddy 515b is greater than 0.25 millimeter, and in this present embodiment, the fillet It is best with 0.4 millimeter, but is not limited thereto.The package assembly 52 is sheathed on the endpiece 512 and is partially connected in described The mobile jib section 511 of endpiece 512, and the inner wall 521 for being posted by the lance part 51 with one.The inner wall 521 forms one First inner circumferential face 521a, one second inner circumferential face 521b, one are connected in the first inner circumferential face 521a and described second Week face 521b and the block extended from the second inner circumferential face 521b towards the inclination of the direction of the first inner circumferential face 521a Facial 521c and one is connected to the second inner circumferential face 521b and close to second rear end 124 of said inner tube 12 Internal thread part 521d.The first inner circumferential face 521a corresponds to the outer peripheral surface of the mobile jib section 511, the second inner circumferential face 521b corresponds to the outer peripheral surface of the extension 514, and the aperture that defines the second inner circumferential face 521b is greater than described the The aperture that one inner circumferential face 521a is defined.The block face 521c correspond to the shoulder 513 and with 513 shape of shoulder Shape matches.The internal thread part 521d is bolted in the external thread part 515, to ensure the gunpowder machine hammer 100 in use Shi Suoshu package assembly 52 is not fallen off each other with the lance part 51.Before the buffering kit 6 is set to the second of said inner tube 12 End 123.

Strength driving after the piston rod group 5 is fired by the gunpowder, is designed by by the piston rod group 5 At two-piece type (the encased part 52 of lance part 51), avoiding the gunpowder machine hammer 100, stress concentrates on different bar diameters when in use The junction of size and be broken, greatly improve 5 service life of piston rod group, the fillet design of the spiral shell paddy 515b can similarly be kept away Exempt from the situation of stress concentration.In addition, the block face 521c supplies the shoulder on a moving direction D1 of the piston rod group 5 Portion 513 abuts against, therefore works as the gunpowder machine hammer 100 and be used in a softer or hollow substrate (not shown), and makes institute When stating piston rod group 5 and squeezing into the substrate package assembly 52 is caused directly to hit the buffering kit 6,51 energy of lance part It assists to absorb portion of energy, reaches the effect of package assembly 52 is not easily separate with the lance part 51.Furthermore the buffering External member 6 can stop the piston rod group 5 after the piston rod group 5 completes the percussion nail hitting and continue to move along, and absorb institute State the energy of piston rod group 5.In addition, in this present embodiment, the material of the lance part 51 and the package assembly 52 is all alloy Steel, but hardness and material can separately design according to the property requirements that the gunpowder machine hammer 100 uses and reach than one Formula piston rod design more preferably efficiency, such as the hardness of the lance part 51 are followed closely due to that must strike gunpowder, and can design hardness is About 55 degree of higher Rockwell Hardness HRC grade, and since the package assembly 52 is not required to directly hit the nail hitting, it can reduce The hardness (such as about 50 degree of Rockwell Hardness HRC grade) of the package assembly 52 increases the toughness of the package assembly.It is described Mutually reinforce combining using a soft material (not shown) between lance part 51 and the package assembly 52, and the soft material can be a solder Or colloid, so that the lance part 51 is welded to each other with the package assembly 52 or glued.Since the hardness of solder or colloid is remote It is lower with the package assembly 52 than the lance part 51, it can make have shock-absorbing effect between the lance part 51 and the package assembly 52, Reach the optimum life span of piston rod.

The resetting apparatus 7 is vertically arranged in the perforation 116 of the outer tube 11 and protrudes out the kerve of said inner tube 12 125.Another cooperation is refering to Fig. 5, in order to reset piston rod group 5 to carry out percussion next time, every time again after each percussion Operator need to pull out said inner tube 12 towards the direction far from the rear seat 21 after percussion, and the resetting apparatus 7 can be relative to Said inner tube 12 and moved along the kerve 125, and pull the button piston rod group 5 against returning described the second of said inner tube 12 Rear end 124.Subsequent operator pushes back said inner tube 12 again, and the reset of the piston rod group 5 can be completed.The outer tube 11 Fluting 114 can be exposed when said inner tube 12 pulls out, and is connected with the coyote hole 127, fills up new gunpowder for operator.

The silencing means 8 includes that a guide plate 81 for being set to 11 lower section of outer tube and one are coated on the gun barrel group The noise reduction of ignition sound when part 1 and the guide plate 81 are to reduce percussion covers 82.The guide plate 81 define one with it is described outer It air guide space 811 that first gas port 115 of pipe 11 is connected and one is formed towards 7 direction of resetting apparatus and same The second gas port 812 being connected with the air guide space 811.The noise reduction set 82 has one to correspond to second gas port 812 opening 821, so that concussion can be sequentially via first gas port in the gas of said inner tube 12 when the gunpowder explosion 115, the 821 export gunpowder machine hammer 100 of the air guide space 811, second gas port 812 and the opening, gas It is able to relatively slow expansion, thus the sound can be reduced.

The shield 9 is arranged in second front end 123 of said inner tube 12, is mainly used for that nail hitting is prevented to be driven into institute When stating object to be installed, the clast of splashing accidentally injures operator, is also convenient for holding for operator and be moved before and after said inner tube 12 with driving It is dynamic to reset the piston rod group 5.

In conclusion the utility model gunpowder machine hammer 100, adds by the piston rod group 5 is divided into package assembly 52 The two-piece design of lance part 51 is avoided in the junction of 5 various outer diameter size of piston rod group because stress concentration is broken； The lance part 51 is spirally connected each other to ensure the lance part 51 when gunpowder machine hammer 100 uses with the package assembly 52 It is not fallen off each other with the package assembly 52, and is be combined with each other and make using a soft material between the lance part 51 and the package assembly 52 There is shock-absorbing effect between the lance part 51 and the package assembly 52, reaches the optimum life span of piston rod；When the gunpowder nail hitting Device 100 is used in a softer or hollow substrate, the block face 521c when the piston rod group 5 is driven described in It is abutted against on moving direction D1 for the shoulder 513, prevents the package assembly 52 to be detached from the lance part 51, reach improvement piston The effect of service life of bar group 5, therefore the purpose of the utility model can be reached really.

As described above, only the embodiments of the present invention, when the utility model implementation cannot be limited with this Range, i.e., it is all according to simple equivalent changes and modifications made by the utility model claims book and description, all still belong to The scope of the utility model.

Claims

1. a kind of gunpowder machine hammer emits nail hitting as power source by gunpowder, which is characterized in that the gunpowder machine hammer packet Contain：

Barrel assembly, including outer tube, and movably it is arranged in the inner tube of the outer tube；

Lever including being connected to the rear seat of described outer tube one end, and is connected to the hand-held part of the rear seat；

Trigger device is set to the hand-held part；

Percussion lock is located at the rear seat and can be interlocked by the trigger device and be suitable for firing the gunpowder；And

Piston rod group is set to said inner tube, and the strength driving after being fired by the gunpowder, the piston rod group include Lance part and package assembly, the lance part has the mobile jib section for being suitable for hitting the nail hitting, and is connected to the mobile jib section and leans on The endpiece of one end of the nearly percussion lock, the outer diameter of the endpiece are greater than the mobile jib section and in the connections with the mobile jib section Place forms the shoulder tapered towards the direction outer diameter of the mobile jib section, and the package assembly is sheathed on the endpiece, and has and be posted by The inner wall of the lance part, and the inner wall forms the block face matched with the shoulder shape, the stopping surface Portion on the moving direction when the piston rod group is driven to supply the shoulder to abut against.

2. gunpowder machine hammer according to claim 1, it is characterised in that：The endpiece formed to the package assembly The external thread part that inner wall is spirally connected.

3. gunpowder machine hammer according to claim 2, it is characterised in that：The external thread part has multiple spaced Luo Gu, and the fillet of each Luo Gu is greater than 0.25 millimeter.

4. gunpowder machine hammer according to claim 2, it is characterised in that：The external thread part and the shoulder interval one away from From.

5. gunpowder machine hammer according to claim 1, it is characterised in that：The hardness of the package assembly is less than the lance part Hardness.

6. gunpowder machine hammer according to claim 1, it is characterised in that：It is utilized between the lance part and the package assembly Soft material is mutually reinforced combining.

7. gunpowder machine hammer according to claim 6, it is characterised in that：The soft material is solder, the package assembly and institute Stating lance part is to be welded to each other.

8. gunpowder machine hammer according to claim 6, it is characterised in that：The soft material is colloid, the package assembly and institute Stating lance part is mutual gluing.