CN203485145U - Novel fastener ejection mechanism - Google Patents
Novel fastener ejection mechanism Download PDFInfo
- Publication number
- CN203485145U CN203485145U CN201320644323.5U CN201320644323U CN203485145U CN 203485145 U CN203485145 U CN 203485145U CN 201320644323 U CN201320644323 U CN 201320644323U CN 203485145 U CN203485145 U CN 203485145U
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- China
- Prior art keywords
- ejection
- chamber body
- ejection cover
- jacket
- cartridge chamber
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- Expired - Lifetime
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Abstract
The utility model discloses a novel fastener ejection mechanism comprising a piston barrel, a first ejection jacket and a reset spring, and further comprising a chamber body and a second ejection jacket, wherein the chamber body and the second ejection jacket are in a guide pillar and guide sleeve matching way; a semicircular ladder surface is machined on a guide pillar position of the chamber body; the second ejection jacket is of an integrated structure; an inner surface of the second ejection jacket is also machined as a ladder surface; and the semicircular ladder surface is matched with the ladder surface in a cylinder structure of the second ejection jacket to form an integrated chamber structure. According to the fastener ejection mechanism, a contact surface of the chamber body and the second ejection body is composed of a plurality of ladder surfaces, thus greatly increasing contact area of the chamber body and the second ejection body and prolonging the service lives of the chamber body and the second ejection body; and the fastener ejection mechanism prevents a problem that a nail shooting pill shell is deformed due to shearing vibration and various factors in case that a nail shooting pill explodes in the chamber body in a fastening operation.
Description
Technical field
The utility model relates to ail shooter manufacturing technology field, is specifically related to a kind of New jet nail device cartridge case extractor.
Background technology
Ail shooter is to utilize firing pin percussion nail shooting pill, and nail shooting pill produces forward thrust as power in cartridge chamber implode, promotes piston rod high-speed motion and nailing is squeezed into a kind of instrument of building substrate.
At present, after nail shooting pill blast, its ghost is by two kinds of cartridge case extractors that automatically reset, nailing shell case to be exited.Be that application number is a semicircle cartridge case extractor of ZL201120049826.9, see accompanying drawing one, another kind is that application number is the circular cartridge case extractor of ZL201120088004.1, sees accompanying drawing three.Its operation principle, for nail pipe 1 and piston cylinder 3 are pulled forward, makes cartridge case extractor comprise that first ejection cover the 5, second ejection cover 8 travels forward simultaneously.When cartridge case extractor travels forward while encountering the fixing spacer pin 4 in position, cartridge case extractor completes the ejection to nail shooting pill shell after doing counter motion certain distance, after ejection completes, by return spring 7, cartridge case extractor is automatically reset.
In use all there is certain defect in above-mentioned two kinds of cartridge case extractors, wherein the major defect of semicircle cartridge case extractor has: as shown in Figure 2, the one, the spacing groove on the stop screw 9 on cartridge chamber body 6 and the second ejection cover 8 easily produces collision when ejection, cause stop screw easy fracture, thereby occur stuck quality problems; The 2nd, in ejection process, cartridge chamber body 6 and the second ejection cover 8 do relative motion, in relative motion, cartridge chamber body 6 and the second ejection are overlapped 8 mating surfaces and are repeatedly rubbed, make its mating surface weak (wedge angle) locate wearing and tearing and increase or produce anti-burr, cause ejection reliability reduce even can not ejection quality problems.As shown in Figure 3, the major defect of another kind of circular cartridge case extractor shows as: the one, because nail shooting pill is seated on cartridge chamber body and two parts of ejection cover B, when nail shooting pill produces explosion time, make cartridge chamber body produce relative scissors vibration with ejection cover B, as Fig. 4, its nailing shell case is deformed at cartridge chamber body and ejection cover B mating surface place part, after the short period is used, owing to repeatedly vibrating, cause mating surface wearing and tearing, make its shell case deformation plance part more and more serious, thereby cause the quality problems that ejection poor reliability even can not ejection.The 2nd, when using the larger nail shooting pill of power, the relative scissors vibration of cartridge chamber body and ejection cover B is just larger.Shell case will increase at mating surface place deflection.Short time will cause not ejection or part to damage ring after using.
Utility model content
For above-mentioned prior art, the purpose of this utility model is to provide a kind of New jet nail device cartridge case extractor, solves the quality problems that ejection poor reliability even can not ejection, and meets the requirement that it can use the nail shooting pill of the different powers of same model.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A New jet nail device cartridge case extractor, comprises piston cylinder, the first ejection cover, back-moving spring, it is characterized in that, also comprises cartridge chamber body, the second ejection cover; Described cartridge chamber body and the second ejection cover adopt guide pillar guiding sleeve type fit system; On the guide pillar position of described cartridge chamber body, be processed with semicircle step surface, described the second ejection cover is monolithic construction, the inner surface of the second ejection cover is also processed into step surface, and described semicircle step surface coordinates the complete cartridge chamber structure of formation with the step surface in the second ejection cover housing structure.
Described the second ejection cover and guide pillar form and are slidably matched, and the bottom surface of the second ejection cover has fills out shell hole.
Described the first ejection cover is connected through spiral shell mosquito with the second ejection cover.
Compared with prior art, the utlity model has following beneficial effect:
One, cartridge chamber body and the second ejection cover adopt guide pillar guiding sleeve type fit system, in ejection and automatically reset relative motion process, cartridge chamber body and the second ejection cover are to do relative motion in guide pillar guide pin bushing mode all the time, reached ejection flexibly, the job requirement accurately that automatically resets, thereby cancelled when stop screw device has effectively avoided cartridge chamber body and the second ejection to be enclosed within relative motion because stop screw damages the stuck phenomenon having occurred;
Two, nail shooting pill integral body is seated in cartridge chamber body, in terminal operation, nail shooting pill blast is in the implode of cartridge chamber body, after blast, nailing shell case is owing to there not being the impact of the factors such as scissors vibration, make its nailing shell case deflection little and controlled, thereby greatly improved reliability, service life and the processing safety of this cartridge case extractor;
Three, applicable to the nail shooting pill requirement of the different powers of same model, guarantee the quality that construction and installation are fastening.
Accompanying drawing explanation
Fig. 1 is the structural representation of semicircle cartridge case extractor;
Fig. 2 is the structural representation of circular cartridge case extractor;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is that the second ejection cover coordinates schematic diagram with cartridge chamber body;
Reference numeral is: 1 for nail pipe, 2 for piston rod, 3 for piston cylinder, 4 for spacer pin, 5 be the first ejection body, 6 for cartridge chamber body, 7 for back-moving spring, 8 be the second ejection body.
The specific embodiment
The exemplary embodiment of the present invention that provides the description referring to accompanying drawing to be limited by claim and equivalent thereof to help complete understanding.Below describe and comprise that various specific detail are to help understanding, but that these are only considered to is exemplary.Therefore, those of ordinary skill in the art will recognize, can make various changes and modification to embodiment described here without departing from the scope and spirit of the present invention.In addition, for clarity and brevity, omitted the description of known function and structure.
Embodiment
As shown in Figure 5, described the second ejection cover is combined cylinder-block-crankcase unit structure, and its inner surface has been processed into a plurality of step surfaces, and the number of step surface is 1～3; Cartridge chamber body is also monolithic construction, and along being processed with semicircle step surface on the guide pillar position of cartridge chamber body, this semicircle step surface coordinates formation cartridge chamber structure with the step surface in the second ejection cover.The contact-making surface of cartridge chamber body and the second ejection body consists of a plurality of step surfaces, greatly increased the contact area of cartridge chamber body and the second ejection body, improved the service life of cartridge chamber body and the second ejection body, avoided in terminal operation, nail shooting pill blast is in the implode of cartridge chamber body, the problem that after blast, nailing shell case is out of shape its nailing shell case due to factors such as scissors vibrations.
The outside that piston cylinder 3 connects one end of cartridge chamber body 6 has stage, return spring holder is set in this stage, back-moving spring 4 is arranged in return spring holder, two ends are resisted against respectively spring in reset spring abutment on position and cartridge chamber body 6, piston cylinder 3 front end connected nail pipes 1, in piston cylinder 3, be provided with piston rod 2, piston cylinder 3 bottoms have the sliding tray of certain length vertically, and spacer pin 4 arranges on the coat and can move along sliding tray.
The second ejection cover is combined cylinder-block-crankcase unit structure, and this cylinder body and guide pillar form and be slidably matched, and cylinder body bottom surface has fills out shell hole.Return spring holder is for axially to have the cylinder of shoulder hole, and its aperture near piston cylinder 3 one end coordinates with the external diameter of piston cylinder 3, the external diameter that other end aperture is greater than piston cylinder 3 form back-moving spring 7 against position.
Claims (3)
1. a New jet nail device cartridge case extractor, comprises piston cylinder, the first ejection cover, back-moving spring, it is characterized in that, also comprises cartridge chamber body, the second ejection cover; Described cartridge chamber body and the second ejection cover adopt guide pillar guiding sleeve type fit system; On the guide pillar position of described cartridge chamber body, be processed with semicircle step surface, described the second ejection cover is monolithic construction, the inner surface of the second ejection cover is also processed into step surface, and described semicircle step surface coordinates the complete cartridge chamber structure of formation with the step surface in the second ejection cover housing structure.
2. New jet nail device cartridge case extractor according to claim 1, is characterized in that, described the second ejection cover and guide pillar form and be slidably matched, and the bottom surface of the second ejection cover has fills out shell hole.
3. New jet nail device cartridge case extractor according to claim 1, is characterized in that, described the first ejection cover is connected through spiral shell mosquito with the second ejection cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644323.5U CN203485145U (en) | 2013-10-18 | 2013-10-18 | Novel fastener ejection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644323.5U CN203485145U (en) | 2013-10-18 | 2013-10-18 | Novel fastener ejection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203485145U true CN203485145U (en) | 2014-03-19 |
Family
ID=50256003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320644323.5U Expired - Lifetime CN203485145U (en) | 2013-10-18 | 2013-10-18 | Novel fastener ejection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203485145U (en) |
-
2013
- 2013-10-18 CN CN201320644323.5U patent/CN203485145U/en not_active Expired - Lifetime
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