CN112060015A - Axial ail shooter firing mechanism - Google Patents
Axial ail shooter firing mechanism Download PDFInfo
- Publication number
- CN112060015A CN112060015A CN202010937851.4A CN202010937851A CN112060015A CN 112060015 A CN112060015 A CN 112060015A CN 202010937851 A CN202010937851 A CN 202010937851A CN 112060015 A CN112060015 A CN 112060015A
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- firing
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- sleeve
- axial
- spring
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- 238000010304 firing Methods 0.000 title claims abstract description 89
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 238000009527 percussion Methods 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000009693 chronic damage Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention relates to a firing mechanism of an axial nail shooter, belonging to the technical field of striking tools. The main sleeve of the mechanism is internally provided with a percussion sleeve, and the excircle of the percussion sleeve consists of a large-diameter section and a small-diameter section; the pipe wall of the small-diameter section is provided with a locking groove, and an inner hole is in axial sliding fit with the percussion hammer; the triggering hammer is internally hinged with a braking piece with a locking head, and the braking piece has elasticity tending to ensure that the locking head radially exposes out of the locking groove and is axially limited in the locking groove; a reset spring is arranged between the rear section of the movable sleeve and the circular shoulders of the sliding section and the release section of the main sleeve, and a firing spring is arranged between the firing hammer and the handle part; when the first extreme axial position is reached, the braking part is axially limited at the braking position of the locking groove; when in the second extreme axial position, the detent is in a fired position disengaged from the lock slot. The rotary-shrinkage braking device adopting the braking part hinge structure has the advantages of simple structure, good manufacturability, obvious reduction of compression control stroke, convenient operation, no clamping stagnation of the rotary-shrinkage of the braking part and obvious improvement of reliability.
Description
Technical Field
The invention relates to a firing mechanism, in particular to a firing mechanism of an axial nail shooter, and belongs to the technical field of beating tools.
Background
The nail shooting device utilizes the firing pin to fire the nail shooting bullet, makes the explosive of its inside gunpowder produce thrust, strikes objects such as building body with the nail through beating the ejector pin.
Specifically, the nail shooter firstly stores energy through compression of a firing pin spring (at the moment, the firing pin is limited by a sear), then the trigger is pulled, the sear is pushed by the trigger seesaw to release the firing pin, the firing pin is rapidly moved forwards under the action of the thrust of the spring to hit the bottom shell of the nail shooting bullet, the nail shooting bullet is exploded to generate thrust, and the nail is hit through a nailing rod.
The trigger of the traditional nail shooter firing device is designed in front of a handle, the operation and control must be manually operated, and the traditional nail shooter firing device has the following defects in use: 1) when the nail gun is used on the top surface of a ceiling, the nail gun can be operated only by climbing high enough, so that the labor intensity is high, the working efficiency is low, and potential safety hazards exist; 2) when the device is operated towards the ground, the device must be stooped to operate, and is still easy to fatigue to cause chronic damage; 3) construction difficulties also arise when working from the side, such as a wall, when terrain or obstacles are encountered that restrict access.
In order to solve the problems, the patent document with the application number of CN 201520748109.3 discloses a technical scheme of an axial nail shooter, which changes the original manual seesaw release firing pin into a firing pin sleeve inner circle axial movement release firing pin, namely, the axial force application completes the operation, thereby overcoming the defects of the traditional nail shooter; and the extension rod is arranged, so that remote operation is realized, and the defect that the traditional nail shooter needs to be operated in a short range is overcome.
However, the technical scheme still has the following defects in practice: the inclined key for pressing the brake pin is configured, so that the processing precision is high, the assembly and the adjustment are inconvenient, the operation stroke of completing the release of the brake pin is large, and the reliability of radial retraction of the brake pin is poor.
Disclosure of Invention
The invention aims to: aiming at the defects in the prior art, the axial nail shooter firing mechanism which is stable and reliable and is convenient to assemble and adjust is provided.
In order to achieve the aim, the basic technical scheme of the axial nail shooter firing mechanism comprises the following steps: the inner hole of the main sleeve consists of a sliding fit section at the front part, an expanding release section at the middle part and a reducing percussion section at the rear part; a firing sleeve with a first limit axial position and a second limit axial position is arranged in the main sleeve, and the excircle of the firing sleeve is composed of a large-diameter section matched with the release section and a small-diameter section matched with the firing section; the pipe wall of the small-diameter section is provided with a locking groove, and an inner hole of the small-diameter section is in axial sliding fit with a percussion hammer of which the front end is provided with a firing pin; the triggering hammer is internally hinged with a braking piece with a locking head, and the braking piece has elasticity tending to ensure that the locking head radially exposes out of the locking groove and is axially limited in the locking groove;
a reset spring is arranged between the rear section of the movable sleeve and the circular shoulders of the sliding section and the release section of the main sleeve, and a firing spring is arranged between the firing hammer and the handle part;
when the main sleeve and the firing sleeve are located at a first extreme axial position of a reset spring and a firing spring which are both in a stretching state, the small-diameter section of the firing sleeve is located at a release section of the main sleeve, and the braking part is located at a braking position where the locking head is radially exposed out of the locking groove and is axially limited in the locking groove;
when the main sleeve and the triggering sleeve are located at the second limit axial position of the return spring and the triggering spring in a voltage-sharing compression state, the small-diameter section of the triggering sleeve extends into the triggering section of the main sleeve until the braking piece is located at the triggering position where the locking head is radially pressed into the locking groove and can be axially separated from the locking groove.
The rotary-shrinkage braking device adopting the braking part hinge structure has the advantages of simple structure, good manufacturability, obviously shortened compression control stroke, convenient operation, no clamping stagnation of the rotary-shrinkage of the braking part and obviously improved reliability.
The invention has the further perfection that: the rigidity of the firing spring is greater than that of the reset spring. When the force is applied forwards, the reset spring and the firing spring are compressed successively, and the reset spring plays a certain vibration damping role when the firing spring is fired.
The invention has the further perfection that: the front end of the movable sleeve is fixedly connected with the gun barrel, the rear end of the gun barrel is inserted with a hammer tube, and the rear part of the hammer tube is provided with an expanding check ring and an end plug section; the inner hole of the large-diameter section of the firing sleeve is in sliding fit with the outer circle of the end plug section. This helps to ensure the stability of the axial movement of the firing hammer within the firing sleeve.
The invention has the further improvement that: the brake is shaped like a '9' and is provided with a locking head which extends from a hinge circle through the outer end of the radial connecting arm in a tangential direction. This structure makes the locking of the brake more reliable.
The invention has the further perfection that: the connecting arm of the braking part is pressed against a top spring embedded in the percussion hammer, and the elasticity of the locking head tends to enable the compression surface at the rear part of the locking head to be radially exposed out of the locking groove and axially limited in the locking groove. The structure ensures that the brake is more smoothly released.
The invention has the further perfection that: the reducing part of the rear section of the movable sleeve is sleeved with one end of a return spring, and the other end of the return spring is abutted against a shoulder surface formed by the sliding section and the release section of the main sleeve. Therefore, the mounting structure of the reset spring is compact and reliable.
The invention is still further perfected as follows: the rear reducing section of the percussion hammer is sleeved with one end of a percussion spring, and the other end of the percussion spring is sleeved on a spring core rod fixed in the handle connecting pipe and limited in the handle connecting pipe. Therefore, the installation structure of the firing spring is compact, and instability can be avoided.
The invention has the further perfection that: the hinge pin is in sliding fit with the axial slot of the firing sleeve. The structure ensures that the braking part can completely enter the firing hammer when being released, thereby ensuring reliable release.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a pneumatic nailer configuration employing an axial nailer firing mechanism.
Fig. 2 is a schematic diagram of a natural state structure according to an embodiment of the present invention.
FIG. 3 is a schematic structural view of the embodiment of FIG. 2 in a cocked state.
FIG. 4 is a structural diagram illustrating a release firing state of the embodiment of FIG. 2.
FIG. 5 is a perspective view of a body portion of the axial nailer firing mechanism of the embodiment of FIG. 2.
FIG. 6 is a schematic diagram of the locking member of the embodiment of FIG. 2.
Detailed Description
As shown in fig. 1 to 6, the front section of the main sleeve 8 is slidably sleeved on the rear section of the movable sleeve 10, and the rear end of the main sleeve 8 is fixedly connected with the handle 1 through the handle connecting tube 2 fixedly connected with the main sleeve 8. The rear part of the main sleeve 8 is sleeved with a sheath 18. The inner hole of the main sleeve 8 is composed of a sliding fit section L1 at the front part, an expanding release section L2 at the middle part, a reducing percussion section L3 at the rear part and a thread fixing section of the tail part and the handle connecting pipe 2. A firing sleeve 7 having first and second extreme axial positions is mounted within the main sleeve 8. The outer circumference of the firing sleeve 7 (see FIG. 5) is formed by a large diameter section 7-2 which mates with the release section L2 and a small diameter section 7-3 which mates with the firing section L3.
The front end of the movable sleeve 10 is fixedly connected with a gun barrel 11 with an inner hole for placing a nail 12, the gun barrel 11 is covered with a dustproof sleeve 13, and the rear end of the gun barrel 11 is inserted with a firing needle tube 9. The rear part of the needle striking tube 9 is provided with an expanding retainer ring 9-1 and an end plug section 9-2. The inner hole of the large-diameter section 7-2 of the firing sleeve 7 and the excircle of the end plug section 9-2 form a sliding fit relationship, so that the firing sleeve is organically combined with the sliding fit of the large-diameter section 7-2 and the release section L2 in the firing process, and a good guiding effect is always kept.
The pipe wall of the small diameter section 7-3 of the firing sleeve is provided with a locking groove 7-1, and the inner hole of the small diameter section 7-3 is axially matched with a firing hammer 4 of which the front end is provided with a firing pin 14 through a pin joint in a sliding way. The firing hammer 4 is hinged with a brake 5 through a hinge pin 16. The hinge pin 16 is in sliding engagement with the axial slot 7-4 of the firing sleeve 7.
The detent 5 (see fig. 6) is shaped like a "9" with a locking head 5-1 extending tangentially from a hinge circle through the outer end of the radial link arm 5-3. The connecting arm 5-3 of the braking member 5 is pressed against a top spring 6 embedded in the percussion hammer 4, so that after the locking head 5-1 is installed, the elastic force tends to enable a pressure surface 5-2 at the rear part of the locking head to radially expose out of a locking groove 7-1 and axially limit the locking groove.
The reducing part of the rear section of the movable sleeve 10 is sleeved with one end of a return spring 15, and the other end of the return spring 15 is abutted against the shoulder surface formed by the sliding fit section L1 and the release section L2 of the main sleeve 8. The reducing section at the rear part of the percussion hammer 4 is sleeved with one end of a firing spring 3, and the other end of the firing spring 3 is sleeved on a spring core rod 19 fixed in the handle connecting pipe 2 and limited in the handle connecting pipe 2. The firing spring 3 is stiffer than the return spring 15.
When the main sleeve 8 and the firing sleeve 7 are at the first extreme axial position where the reset spring 15 and the firing spring 3 are both in the extended state, as shown in fig. 2, the small diameter section 7-2 of the firing sleeve 7 is at the release section L2 of the main sleeve 8, and the braking member 5 is at the braking position where the pressure receiving surface 5-2 of the locking head 5-1 is radially exposed out of the locking groove 7-1 and axially limited in the locking groove.
When the nail shooter is used, when the front end of the nail shooter is abutted against a base body to be shot and the base body is pressed forwards by the force applied by the handle part, the main sleeve 8 and the firing sleeve 7 are positioned at the second extreme axial position of the state that the reset spring 15 and the firing spring 3 are compressed in a uniform mode, as shown in fig. 3, the small-diameter section 7-2 of the firing sleeve 7 extends into the firing section L3 of the main sleeve 8 until the braking piece 5 is positioned at the firing position where the compression surface 5-2 of the locking head is radially pressed into the stopping groove 7-1 by the firing sleeve 7 and can be separated from the locking groove.
After that, because the braking component loses the axial braking restraining effect on the firing hammer, under the elastic force action of the firing spring, the firing hammer drives the firing pin to rapidly move forward to strike the tail of the nail, as shown in fig. 4, the nail firing and shooting are completed. After the percussion is finished, the percussion hammer is reset under the action of the reset spring, and the braking piece is restored to the state shown in fig. 2 under the action of the top spring.
Experiments show that compared with the prior art, the embodiment has the following remarkable advantages:
1) the braking part is mechanically connected with the hammer, so that the braking part is not easy to fall out and is more convenient to assemble;
2) the braking member is tripped in a rotating mode, and compared with a linear displacement tripping mode in the prior art, the braking member has short required stroke and is more smooth and reliable to trip;
3) the inclined key is eliminated, the number of parts is reduced, and the manufacturing and assembling cost is reduced.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides an axial ail shooter firing mechanism, includes the main cover that anterior segment slip cap linked firmly in movable sleeve back end, rear end and stalk portion, its characterized in that:
the inner hole of the main sleeve is composed of a sliding fit section at the front part, an expanding release section at the middle part and a reducing percussion section at the rear part; a firing sleeve with a first limit axial position and a second limit axial position is arranged in the main sleeve, and the excircle of the firing sleeve is composed of a large-diameter section matched with the release section and a small-diameter section matched with the firing section; the pipe wall of the small-diameter section is provided with a locking groove, and an inner hole of the small-diameter section is in axial sliding fit with a percussion hammer of which the front end is provided with a firing pin; the triggering hammer is internally hinged with a braking piece with a locking head, and the braking piece has elasticity tending to ensure that the locking head radially exposes out of the locking groove and is axially limited in the locking groove;
a reset spring is arranged between the rear section of the movable sleeve and the circular shoulders of the sliding section and the release section of the main sleeve, and a firing spring is arranged between the firing hammer and the handle part;
when the main sleeve and the firing sleeve are located at a first extreme axial position of a reset spring and a firing spring which are both in a stretching state, the small-diameter section of the firing sleeve is located at a release section of the main sleeve, and the braking part is located at a braking position where the locking head is radially exposed out of the locking groove and is axially limited in the locking groove;
when the main sleeve and the triggering sleeve are located at the second limit axial position of the return spring and the triggering spring in a voltage-sharing compression state, the small-diameter section of the triggering sleeve extends into the triggering section of the main sleeve until the braking piece is located at the triggering position where the locking head is radially pressed into the locking groove and can be axially separated from the locking groove.
2. The axial nailer firing mechanism of claim 1 wherein: the rigidity of the firing spring is greater than that of the reset spring.
3. The axial nailer firing mechanism of claim 2 wherein: the front end of the movable sleeve is fixedly connected with the gun barrel, the rear end of the gun barrel is inserted with a hammer tube, and the rear part of the hammer tube is provided with an expanding check ring and an end plug section; the inner hole of the large-diameter section of the firing sleeve is in sliding fit with the outer circle of the end plug section.
4. The axial nailer firing mechanism of claim 3 wherein: the brake is shaped like a '9' and is provided with a locking head which extends from a hinge circle through the outer end of the radial connecting arm in a tangential direction.
5. The axial nailer firing mechanism of claim 4 wherein: the connecting arm of the braking part is pressed against a top spring embedded in the percussion hammer, and the elasticity of the locking head tends to enable the compression surface at the rear part of the locking head to be radially exposed out of the locking groove and axially limited in the locking groove.
6. The axial nailer firing mechanism of claim 5 wherein: the reducing part of the rear section of the movable sleeve is sleeved with one end of a return spring, and the other end of the return spring is abutted against a shoulder surface formed by the sliding section and the release section of the main sleeve.
7. The axial nailer firing mechanism of claim 6 wherein: the rear reducing section of the percussion hammer is sleeved with one end of a percussion spring, and the other end of the percussion spring is sleeved on a spring core rod fixed in the handle connecting pipe and limited in the handle connecting pipe.
8. The axial nailer firing mechanism of any of claims 1 through 7 wherein: the hinge pin is in sliding fit with the axial slot of the firing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010937851.4A CN112060015A (en) | 2020-09-09 | 2020-09-09 | Axial ail shooter firing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010937851.4A CN112060015A (en) | 2020-09-09 | 2020-09-09 | Axial ail shooter firing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112060015A true CN112060015A (en) | 2020-12-11 |
Family
ID=73662835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010937851.4A Withdrawn CN112060015A (en) | 2020-09-09 | 2020-09-09 | Axial ail shooter firing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112060015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842485A (en) * | 2021-01-20 | 2021-05-28 | 上海埃斯埃医疗技术有限公司 | Emitter based on platform resets |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB719618A (en) * | 1949-10-14 | 1954-12-08 | Erich Holz | Improvements in or relating to devices for forcing nails, pins, dowels or other fastening means into walls or other members |
| US5904284A (en) * | 1998-02-06 | 1999-05-18 | Lin; Joe | Explosively actuated fastener system and method of application thereof |
| CN204136015U (en) * | 2014-08-07 | 2015-02-04 | 南京腾亚精工科技有限公司 | Dustproof nail gun |
| CN205043730U (en) * | 2015-09-24 | 2016-02-24 | 宜宾市南溪区科诚机电厂 | Axial percussion ail shooter |
| CN205415507U (en) * | 2015-12-15 | 2016-08-03 | 四川南山射钉紧固器材有限公司 | Gunpowder ail shooter suitable for various furred ceilings and on --spot installation |
| CN106475968A (en) * | 2016-11-08 | 2017-03-08 | 宜宾市南溪区科诚机电厂 | It is applied to the percussion release device on axial screw shooter |
| CN206527705U (en) * | 2016-11-08 | 2017-09-29 | 宜宾市南溪区科诚机电厂 | Applied to the percussion release device on axial nailing device |
| CN207578324U (en) * | 2017-12-20 | 2018-07-06 | 宜宾市南溪区科诚机电厂 | Axial nailing device |
| CN108927864A (en) * | 2017-05-19 | 2018-12-04 | 约·弗里德里希·贝伦斯股份公司 | Utensil is squeezed into for what fixing piece was squeezed into workpiece |
| CN109940557A (en) * | 2017-12-20 | 2019-06-28 | 宜宾市南溪区科诚机电厂 | The axial nailing device of quick ejection |
| CN211278259U (en) * | 2019-11-19 | 2020-08-18 | 张小波 | Combined type furred ceiling ail shooter firing mechanism |
-
2020
- 2020-09-09 CN CN202010937851.4A patent/CN112060015A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB719618A (en) * | 1949-10-14 | 1954-12-08 | Erich Holz | Improvements in or relating to devices for forcing nails, pins, dowels or other fastening means into walls or other members |
| US5904284A (en) * | 1998-02-06 | 1999-05-18 | Lin; Joe | Explosively actuated fastener system and method of application thereof |
| CN204136015U (en) * | 2014-08-07 | 2015-02-04 | 南京腾亚精工科技有限公司 | Dustproof nail gun |
| CN205043730U (en) * | 2015-09-24 | 2016-02-24 | 宜宾市南溪区科诚机电厂 | Axial percussion ail shooter |
| CN205415507U (en) * | 2015-12-15 | 2016-08-03 | 四川南山射钉紧固器材有限公司 | Gunpowder ail shooter suitable for various furred ceilings and on --spot installation |
| CN106475968A (en) * | 2016-11-08 | 2017-03-08 | 宜宾市南溪区科诚机电厂 | It is applied to the percussion release device on axial screw shooter |
| CN206527705U (en) * | 2016-11-08 | 2017-09-29 | 宜宾市南溪区科诚机电厂 | Applied to the percussion release device on axial nailing device |
| CN108927864A (en) * | 2017-05-19 | 2018-12-04 | 约·弗里德里希·贝伦斯股份公司 | Utensil is squeezed into for what fixing piece was squeezed into workpiece |
| CN207578324U (en) * | 2017-12-20 | 2018-07-06 | 宜宾市南溪区科诚机电厂 | Axial nailing device |
| CN109940557A (en) * | 2017-12-20 | 2019-06-28 | 宜宾市南溪区科诚机电厂 | The axial nailing device of quick ejection |
| CN211278259U (en) * | 2019-11-19 | 2020-08-18 | 张小波 | Combined type furred ceiling ail shooter firing mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842485A (en) * | 2021-01-20 | 2021-05-28 | 上海埃斯埃医疗技术有限公司 | Emitter based on platform resets |
| CN112842485B (en) * | 2021-01-20 | 2022-02-08 | 上海埃斯埃医疗技术有限公司 | Emitter based on platform resets |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201211 |
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| WW01 | Invention patent application withdrawn after publication |