CN102008861A - Air filtering device of combustion-powered fastener driving tool - Google Patents
Air filtering device of combustion-powered fastener driving tool Download PDFInfo
- Publication number
- CN102008861A CN102008861A CN 201010513175 CN201010513175A CN102008861A CN 102008861 A CN102008861 A CN 102008861A CN 201010513175 CN201010513175 CN 201010513175 CN 201010513175 A CN201010513175 A CN 201010513175A CN 102008861 A CN102008861 A CN 102008861A
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- top cover
- body cap
- powered fastener
- driving tool
- combustion
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Abstract
The invention relates to an air filtering device of a combustion-powered fastener driving tool, which belongs to the technical field of combustion-powered fastener driving tools. The device consists of a bowl-shaped body cover arranged at an air inlet end of the combustion-powered fastener driving tool during assembling, a top cover covered on the body cover, and a filter screen clamped between the body cover and the top cover, wherein air inlet end faces of both the body cover and the top cover are provided with ventilation slots; an annular groove in which the filter screen is embedded is formed at the periphery of the air inlet end face of the body cover; the filter screen consists of a metal mesh of which the periphery is embedded into a plastic ring; the appearance and cross-sectional shape of the plastic ring are matched with the annular shape and cross-sectional shape of the annular groove respectively; and the shape of the outer profile of the body cover is matched with that of the inner profile of the top cover. A cylinder and other parts inside the tool can be cleaned only by opening the body cover without disassembly of the filter. The filter screen can be cleaned or replaced only by opening the top cover without disassembly of the body cover from the air inlet end of the tool. The device is extremely convenient to operate.
Description
Technical field
The present invention relates to a kind of air filter, especially a kind of combustion powered fastener-driving tool air filter belongs to the combustion powered fastener-driving tool technical field.
Background technology
Portable combustion-powered tool fastener-driving tools can be injected workpiece and base material with securing member by combustion powered driving, and is of many uses.This type of tool housing inside has compact internal combustion engine, this internal combustion engine provides power by the fuel gas tank, when the striking head is resisted against on the workpiece, striking arm linkage closed chamber, the fuel metering valve that links is simultaneously injected quantitative fuel in the airtight combustion chamber, also open fan air in the combustion chamber and burning gases are stirred fully, form mist.Cocking is opened the switch that is produced spark by battery-driven electronic control component, and spark causes the mist combustion explosion, and the front end of the striker in the gases at high pressure promotion cylinder on the pistons reciprocating impacts at securing member injects workpiece from nozzle.Because the hot gas quenching produces pressure reduction in the effect of the check valve on the cylinder, cylinder, make piston drive striker and get back to initial point (prefiring position).
(for example: the filter NR90GC that HITACHI makes) adopts stainless (steel) wire to be placed on to be injected in the injection mould bowl-shape existing portable fastener-driving tools, not only the mould complexity, difficulty is shaped, and material is thick and heavy, air intake surface is the conical surface, breathing area is little, resistance is big, especially: when the parts such as cylinder of cleaning tool inside need be dismantled top cover, filter can come off, and is very inconvenient.
Summary of the invention
The objective of the invention is to: at the problem of above-mentioned prior art existence, a kind of maintenance that need not to dismantle screen pack and screen pack when clearing up inside combustion powered fastener-driving tool air filter is very easily proposed, thus the assembling of the instrument of giving, safeguard bring more convenient.
In order to achieve the above object, combustion powered fastener-driving tool air filter of the present invention the time is placed in bowl-shape body cap, the top cover of spiral-lock on body cap of combustion powered fastener-driving tool inlet end by assembling, and the screen pack that is clamped between body cap and the top cover constitutes; The air intake end face of described body cap and top cover all has ventilation slot; The air intake end face periphery of described body cap has the annular recess of setting-in screen pack; Described screen pack is made of the wire netting that the periphery bag is embedded in the plastic tube; The profile of described plastic tube and cross sectional shape and the annular and the cross sectional shape of described annular recess match respectively; The interior profile shape of the gabarit shape of described body cap and described top cover matches.
After adopting the present invention, during assembling, screen pack is embedded in the annular recess of body cap air intake end face, can be assembled to the air intake of instrument, afterwards, the top cover spiral-lock on body cap, is clamped screen pack and gets final product with body cap.When needing the parts such as cylinder of cleaning tool inside, as long as open body cap, the relative position of body cap and screen pack and top cover can remain unchanged, and promptly need not to remove screen pack.And when needs cleaning or replacing screen pack, as long as open top cover, need not body cap is pulled down from the air intake of instrument.Therefore very convenient, and help protecting screen pack.
The present invention further improves: have the snaps into position structure between described body cap and the top cover.Like this, the spiral-lock between top cover and the body cap is more convenient reliable.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is an one embodiment of the invention decomposition texture schematic diagram.
Fig. 2 is the structural representation of screen pack among Fig. 1 embodiment.
Fig. 3 is the cross section structure schematic diagram of Fig. 2.
Fig. 4 is the assembling view of Fig. 1 embodiment.
Fig. 5 is the partial enlarged drawing of Fig. 4.
Part and label corresponding relation are among each figure:
10 ail guns
20 body caps
21 boss
22 frames
23 locating holes
24 left tilted surfaces
25 right tilted surfaces
26 buckle grooves
28 annular grooves
29 ventilation slots
30 top covers
31 top cover grooves
32 edges
33 ventilation slots
34 circular holes
35 stretch out plate
36 top cover left tilted surfaces
37 top cover right tilted surfaces
38 inclined-planes
39 butt hooks
40 screen packs
41 stainless steel cloths
42 rubber rings
45 convex tendons
46 convex tendons
50 screws
The specific embodiment
Embodiment one
Present embodiment combustion powered fastener-driving tool air filter as shown in Figure 1, be placed in combustion powered fastener-driving tool---the bowl-shape body cap 20 of ail gun 10 inlet ends, the top cover 30 of spiral-lock on body cap when comprising assembling, and be clamped in the screen pack 40 between body cap and the top cover.
The periphery bag that screen pack 40 is adopted net height density (preventing that fine dust from entering) stainless steel cloth 41 is embedded in the resilient rubber ring 42 to be made.The profile of this plastic tube matches with the annular groove 28 that gets out of the way locating hole 23, and its cross sectional shape also matches with the cross sectional shape of annular groove 28, and has and help to guarantee the upper and lower convex tendon 45,46 (referring to Fig. 3) that seals after the pressure holding.
During loading and unloading, earlier screen pack 40 is put into the annular groove 28 of body cap 20, again with top cover 30 and body cap 20 spiral-locks location (referring to Fig. 4).Left tilted surface 36 on the top cover 30, right tilted surface 37 match with left tilted surface 24, right tilted surface 25 on the body cap 20 respectively, therefore press top cover 30, can align the center with body cap 20 voluntarily.Frame 22 aligns with edge 32.
What press down top cover 30 both sides stretches out plate 35, and buckle groove 26 slips into butt hook 39 (Fig. 5) by inclined-plane 38.Convex tendon 45 convex tendons 46 on the screen pack 40 are resisted against respectively on top cover 30 inner faces and annular groove 28 bottom surfaces, prevent that dust and molecule from entering cylinder, the cylinder of avoiding wearing and tearing, minimizing ail gun life-span.
Clean when cylinder is unclear washes screen pack 40, only need removable screw 50, turnover body lid 20 can clean cylinder.During cleaning and filtering net 40, removable screw 50 is pried open at top cover groove 31 places and to be stretched out plate 35, and butt hook 39 is thrown off from rectangular groove 26, and top cover 30 just is disassembled, and takes out to re-assembly after screen pack 40 cleans to get final product again.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (5)
1. a combustion powered fastener-driving tool air filter is placed in bowl-shape body cap, the top cover of spiral-lock on body cap of combustion powered fastener-driving tool inlet end during by assembling, and the screen pack that is clamped between body cap and the top cover constitutes; The air intake end face of described body cap and top cover all has ventilation slot; The air intake end face periphery of described body cap has the annular recess of setting-in screen pack; Described screen pack is made of the wire netting that the periphery bag is embedded in the plastic tube; The profile of described plastic tube and cross sectional shape and the annular and the cross sectional shape of described annular recess match respectively; The interior profile shape of the gabarit shape of described body cap and described top cover matches.
2. combustion powered fastener-driving tool air filter according to claim 1 is characterized in that: have the snaps into position structure between described body cap and the top cover.
3. combustion powered fastener-driving tool air filter according to claim 2 is characterized in that: the lower end outer surface of described body cap has positioning boss, and described positioning boss both sides are respectively left tilted surface and right tilted surface; The lower end inner surface of described top cover have with body cap on the corresponding buckle groove of butt hook, and the location inclined-plane corresponding with described left tilted surface and right tilted surface, thus form described snaps into position structure.
4. combustion powered fastener-driving tool air filter according to claim 3 is characterized in that: have guiding surface on the described butt hook.
5. combustion powered fastener-driving tool air filter according to claim 4 is characterized in that: the plastic tube cross section of described screen pack has upper and lower convex tendon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105131754A CN102008861B (en) | 2010-10-20 | 2010-10-20 | Combustion-powered fastener-driving tool air filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105131754A CN102008861B (en) | 2010-10-20 | 2010-10-20 | Combustion-powered fastener-driving tool air filtration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102008861A true CN102008861A (en) | 2011-04-13 |
| CN102008861B CN102008861B (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105131754A Active CN102008861B (en) | 2010-10-20 | 2010-10-20 | Combustion-powered fastener-driving tool air filtration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102008861B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294412A (en) * | 1994-10-26 | 1996-05-01 | Max Co Ltd | Air filter assembly for a pneumatic tool |
| JP2003089076A (en) * | 2001-09-14 | 2003-03-25 | Hitachi Koki Co Ltd | Nail driving machine |
| JP2003145444A (en) * | 2001-11-19 | 2003-05-20 | Max Co Ltd | Exhaust structure of pneumatic driven impact tool |
| CN1522836A (en) * | 2003-02-21 | 2004-08-25 | ������������ʽ���� | Combustion type power tool |
| CN2661381Y (en) * | 2003-12-05 | 2004-12-08 | 梁柏胜 | A spanking gun |
| CN201198823Y (en) * | 2005-05-02 | 2009-02-25 | 布莱克和戴克公司 | Compressor assembly |
| WO2009051932A1 (en) * | 2007-10-16 | 2009-04-23 | Illinois Tool Works Inc. | Air filter assembly for combustion tool |
| CN101687314A (en) * | 2007-07-04 | 2010-03-31 | 美克司株式会社 | Gas combustion type knock tool |
-
2010
- 2010-10-20 CN CN2010105131754A patent/CN102008861B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294412A (en) * | 1994-10-26 | 1996-05-01 | Max Co Ltd | Air filter assembly for a pneumatic tool |
| JP2003089076A (en) * | 2001-09-14 | 2003-03-25 | Hitachi Koki Co Ltd | Nail driving machine |
| JP2003145444A (en) * | 2001-11-19 | 2003-05-20 | Max Co Ltd | Exhaust structure of pneumatic driven impact tool |
| CN1522836A (en) * | 2003-02-21 | 2004-08-25 | ������������ʽ���� | Combustion type power tool |
| CN2661381Y (en) * | 2003-12-05 | 2004-12-08 | 梁柏胜 | A spanking gun |
| CN201198823Y (en) * | 2005-05-02 | 2009-02-25 | 布莱克和戴克公司 | Compressor assembly |
| CN101687314A (en) * | 2007-07-04 | 2010-03-31 | 美克司株式会社 | Gas combustion type knock tool |
| WO2009051932A1 (en) * | 2007-10-16 | 2009-04-23 | Illinois Tool Works Inc. | Air filter assembly for combustion tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102008861B (en) | 2012-07-04 |
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| ASS | Succession or assignment of patent right |
Owner name: NANJING TOUA PRECISION INDUSTRIAL TECHNOLOGY CO., Free format text: FORMER OWNER: YITIAN (NANJING) METAL PRODUCTS CO., LTD. Effective date: 20111220 |
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Free format text: CORRECT: ADDRESS; FROM: 211103 NANJING, JIANGSU PROVINCE TO: 211100 NANJING, JIANGSU PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20111220 Address after: 211100 Dongshan Road, Dongshan District, Jiangning District, Jiangsu City, Nanjing Province, No. 129 Lin Lin Road Applicant after: Nanjing Toua Hardware & Tools Co.,Ltd. Address before: Jiangning District of Nanjing City, Jiangsu province 211103 Shang Fang Zhen Ni Tang Industrial Park Applicant before: Yitian (Nanjing) Metal Products Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 211100 Dongshan Road, Dongshan District, Jiangning District, Jiangsu City, Nanjing Province, No. 129 Lin Lin Road Patentee after: Nanjing Toua Hardware & Tools Co.,Ltd. Address before: 211100 Dongshan Road, Dongshan District, Jiangning District, Jiangsu City, Nanjing Province, No. 129 Lin Lin Road Patentee before: Nanjing Toua Hardware & Tools Co.,Ltd. |