CN102620038A - Piston type airtight device - Google Patents
Piston type airtight device Download PDFInfo
- Publication number
- CN102620038A CN102620038A CN2011100272549A CN201110027254A CN102620038A CN 102620038 A CN102620038 A CN 102620038A CN 2011100272549 A CN2011100272549 A CN 2011100272549A CN 201110027254 A CN201110027254 A CN 201110027254A CN 102620038 A CN102620038 A CN 102620038A
- Authority
- CN
- China
- Prior art keywords
- strip
- piston body
- piston type
- hollow article
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The invention discloses a piston type airtight device which comprises a strip-shaped hollow body, a strip-shaped piston body and an air tube, wherein a penetrating groove is formed in the bottom edge of the strip-shaped piston body; the strip-shaped piston body is arranged inside the strip-shaped hollow body; a telescopic pat is formed in the strip-shaped piston body relative to the penetrating groove; one end of the air tube is connected to the inside of the strip-shaped hollow body; the other end of the air tube is connected to an air inflating-extracting pump; and a space above the top edge of the strip-shaped piston body is inflated or exhausted, so that the telescopic part of the strip-shaped piston body extends outwards or retracts. The piston type airtight device disclosed by the invention has the efficacy of stable airtightness.
Description
Technical field
The present invention relates to that a kind of that the strip piston body is arranged at the strip hollow article is inner; And utilize inflation to make the overhanging or retraction of pars contractilis of strip piston body with bleeding; And then reach airtight conditions or remove airtight design, relate in particular to a kind of piston type gas check.
Background technique
As shown in Figure 1; Be linked to the gas check of expansion adhesive tape 10 for generally using of inflation and extraction pump (not shown); To be installed in exposure frame 20 its airtight principles of explanation, it is airtight to let exposure frame 20 keep during inflation, then removes its tightness after the atrophy of bleeding at this; But because of expansion adhesive tape 10 is to utilize joint to constitute; When having flaw slightly, its mating face will cause air pressure to leak; Can't inflation and highly airtight environment is provided; So cause expansion adhesive tape 10 that the tightness problem of unstable is arranged, and then must change often, be to become gas-tight design institute problem demanding prompt solution.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcomes the above-mentioned defective that existing technology exists, and a kind of piston type gas check is provided, and it has the stable effect of tightness.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of piston type gas check is characterized in that, includes: a strip hollow article, root edge are formed with wears groove; One strip piston body, it is inner to be arranged at this strip hollow article, and this is worn groove and is formed with pars contractilis relatively; One tracheae, an end are linked to that this strip hollow article is inner, and end then is linked to inflation and extraction pump in addition, and to the inflated spatial of this strip piston body apical margin top with bleed overhanging or retraction with the pars contractilis that makes this strip piston body.
Aforesaid piston type gas check, wherein further said relatively strip piston body apical margin is provided with several elastomers.
Aforesaid piston type gas check, wherein the strip hollow article further is provided with the location adhesive tape in apical margin.
The invention has the beneficial effects as follows that it has the stable effect of tightness.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of existing expansion adhesive tape.
Fig. 2 is a structural representation of the present invention.
Label declaration among the figure:
10 expansion adhesive tape
20 exposure frame
30 strip hollow articlies
31 wear groove
32 location adhesive tape
40 strip piston bodies
41 pars contractilis
50 tracheaes
60 elastomers
Embodiment
At first, see also shown in Figure 2ly, the present invention includes:
One strip hollow article 30, root edge are formed with wears groove 31, and further is provided with location adhesive tape 32 in apical margin, to provide tightness better installment surface;
One strip piston body 40 is arranged at this strip hollow article 30 inside, and this is worn groove 31 and is formed with pars contractilis 41 relatively, and this pars contractilis 41 is protractile (airtight conditions) or retraction (removing airtight); And
One tracheae, 50, one ends are linked to this strip hollow article 30 inside, and in addition end then is linked to inflation and extraction pump (not shown), and to the inflated spatial of this strip piston body 40 apical margins top with bleed, make the pars contractilis 41 overhanging or retractions of this strip piston body 40.
In addition; Further these strip piston body 40 apical margins are provided with several elastomers 60 such as spring relatively; This elastomer 60 suffered frictional force during in order to 40 extrapolations of this strip piston body of balance, comparatively laborsaving and quick when causing with 40 extrapolations of this strip piston body, be able to reach fast airtight conditions.
Based on said structure; Utilization of the present invention to these strip hollow article 30 inner inflatable with bleed; And the pars contractilis 41 that makes this strip piston body 40 is overhanging or retraction, and then reaches airtight conditions or remove the airtight design of airtight piston type, and the adaptation between member is splendid; Can't produce the facts that air pressure leaks, have the stable effect of tightness.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technological scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
In sum; The present invention is on structural design, use practicability and cost benefit; It is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, has novelty, creativeness, practicability; The regulation that meets relevant patent of invention important document is so mention application in accordance with the law.
Claims (3)
1. a piston type gas check is characterized in that, includes:
One strip hollow article, root edge are formed with wears groove;
One strip piston body, it is inner to be arranged at this strip hollow article, and this is worn groove and is formed with pars contractilis relatively;
One tracheae, an end are linked to that this strip hollow article is inner, and end then is linked to inflation and extraction pump in addition, and to the inflated spatial of this strip piston body apical margin top with bleed overhanging or retraction with the pars contractilis that makes this strip piston body.
2. piston type gas check according to claim 1 is characterized in that: further said relatively strip piston body apical margin is provided with several elastomers.
3. piston type gas check according to claim 1 and 2 is characterized in that: said strip hollow article further is provided with the location adhesive tape in apical margin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100272549A CN102620038A (en) | 2011-01-26 | 2011-01-26 | Piston type airtight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100272549A CN102620038A (en) | 2011-01-26 | 2011-01-26 | Piston type airtight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102620038A true CN102620038A (en) | 2012-08-01 |
Family
ID=46560155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100272549A Pending CN102620038A (en) | 2011-01-26 | 2011-01-26 | Piston type airtight device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102620038A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2120217A5 (en) * | 1970-09-24 | 1972-08-18 | Delbergue Martial | |
| US5692540A (en) * | 1996-04-12 | 1997-12-02 | Huang; Fu-Shin | Automatic air compressor drain device |
| CN201059355Y (en) * | 2007-06-14 | 2008-05-14 | 上海仁创机械科技有限公司 | Pneumatic emptying valve |
| CN201162851Y (en) * | 2008-03-17 | 2008-12-10 | 时代嘉华（中国）科技有限公司 | Self-operated three-way valve used for special machine for coolant circulating type machine room |
| CN201418775Y (en) * | 2009-06-11 | 2010-03-10 | 万庆红 | Midwifery device for parturient |
| CN101878389A (en) * | 2007-09-27 | 2010-11-03 | 克马蒂克公司 | Valve actuator system |
-
2011
- 2011-01-26 CN CN2011100272549A patent/CN102620038A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2120217A5 (en) * | 1970-09-24 | 1972-08-18 | Delbergue Martial | |
| US5692540A (en) * | 1996-04-12 | 1997-12-02 | Huang; Fu-Shin | Automatic air compressor drain device |
| CN201059355Y (en) * | 2007-06-14 | 2008-05-14 | 上海仁创机械科技有限公司 | Pneumatic emptying valve |
| CN101878389A (en) * | 2007-09-27 | 2010-11-03 | 克马蒂克公司 | Valve actuator system |
| CN201162851Y (en) * | 2008-03-17 | 2008-12-10 | 时代嘉华（中国）科技有限公司 | Self-operated three-way valve used for special machine for coolant circulating type machine room |
| CN201418775Y (en) * | 2009-06-11 | 2010-03-10 | 万庆红 | Midwifery device for parturient |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102359598A (en) | Plug | |
| CN112728223A (en) | Water supply wall bushing for indoor decoration project | |
| CN207228965U (en) | Salable fast rolling door | |
| CN201351733Y (en) | Tubular chargeable sealing device | |
| CN106124141A (en) | A kind of glove air-leakage test and palming equipment | |
| EA201391526A1 (en) | METHOD AND DEVICE FOR THE RESTORATION OF THE ORIGINAL FORM OF PUMP AND COMPRESSOR PIPE | |
| CN203868315U (en) | Double-side positioning sealing ring | |
| CN102620038A (en) | Piston type airtight device | |
| TWI526640B (en) | Reciprocating piston pump | |
| CN204344455U (en) | A kind of scroll compressor vortex tooth top sealing mechanism | |
| CN202318076U (en) | Pneumatic type internal expansion clamping tool | |
| CN201723114U (en) | Door seal structure | |
| TWI401376B (en) | Piston airtight device | |
| CN104847978A (en) | Improved air pressure type pipeline connecting piece | |
| CN203854431U (en) | Improved inflatable airbag | |
| CN203880154U (en) | One-way air gun valve | |
| CN203571132U (en) | Air pump performing control work by ejecting spring by utilizing airflow | |
| CN104405697A (en) | Threaded-connection type capsule energy accumulator | |
| CN103742390B (en) | A kind of air pump being provided with coil tension spring | |
| CN203394706U (en) | Static sealing device | |
| CN203421164U (en) | Energy-saving sealing ring | |
| CN103090013A (en) | Maintenance sealing device for water turbines | |
| CN204267807U (en) | A kind of valve inside metallic core | |
| CN103437977B (en) | A kind of back pressure check energy-saving vacuum valve for vacuum pump | |
| CN203453003U (en) | Static sealing device of compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |