CN206600499U - A kind of dual-seal improved structure of unidirectional gas circuit - Google Patents
A kind of dual-seal improved structure of unidirectional gas circuit Download PDFInfo
- Publication number
- CN206600499U CN206600499U CN201720345305.5U CN201720345305U CN206600499U CN 206600499 U CN206600499 U CN 206600499U CN 201720345305 U CN201720345305 U CN 201720345305U CN 206600499 U CN206600499 U CN 206600499U
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- CN
- China
- Prior art keywords
- seal
- bowl
- feed channel
- sealing block
- shape soft
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of dual-seal improved structure of unidirectional gas circuit, including crossing feed channel, bowl-shape soft seal, upper limit pad and lower sealing block, the bowl-shape soft seal be arranged in feed channel and between the two between be separated with gap, the upper limit pad was arranged in feed channel and above bowl-shape soft seal, the lower sealing block was arranged in feed channel and below bowl-shape soft seal, the lower sealing block is hollow structure and hollow hole is used as air admission hole；Position is replied to seal top by spacing shim, without spring reset, simple efficiency high is assembled, use cost is low, and inner-walls of duct and sealing block dual-seal, sealing effectiveness are excellent, it is ensured that product is normally using unaffected.
Description
Technical field
The utility model belongs to gas circuit control field, and more particularly to a kind of dual-seal for unidirectional gas circuit improves knot
Structure.
Background technology
, it is necessary to be controlled to gas circuit in the supply product such as air pump, wherein there are many unidirectional gas circuit, use now
Unidirectional gas circuit is controlled by non-return piece, and by spring reset, and only single air-proof condition meets non-return effect, this side
Formula structure can meet certain use requirement, but there is also larger defect, it is necessary to use spring reset, assembling trouble effect
Rate is low, and use cost is high, and only single air-proof condition, and sealing effectiveness is poor, directly affects the normal of product and uses.
The technical problems to be solved in the utility model be to provide it is a kind of without spring reset, assemble simple efficiency high, use
The dual-seal improved structure that cost is low, sealing effectiveness is excellent, do not influence product normally to use.
Utility model content
To solve, above-mentioned prior art needs spring reset, assembling trouble efficiency is low, use cost is high, single sealing sealing effectiveness
The problems such as not good, influence product is normally used, the utility model is adopted the following technical scheme that：
The utility model provides a kind of dual-seal improved structure of unidirectional gas circuit, including cross feed channel, it is bowl-shape soft close
Sealing, upper limit pad and lower sealing block, the bowl-shape soft seal be arranged in feed channel and between the two between be separated between
Gap, the upper limit pad was arranged in feed channel and above bowl-shape soft seal, the lower sealing block is arranged on
Cross in feed channel and below bowl-shape soft seal, the lower sealing block is hollow structure and hollow hole is used as air admission hole
With.
The beneficial effects of the utility model are：Position is replied to seal top by spacing shim, without spring reset, dress
With simple efficiency high, use cost is low, and inner-walls of duct and sealing block dual-seal, sealing effectiveness are excellent, it is ensured that product normally makes
With unaffected.
Brief description of the drawings
Fig. 1 is a kind of non-return sealed structural representation of embodiment of the utility model.
Fig. 2 is the utility model reset state structural representation.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of dual-seal improved structure of unidirectional gas circuit, including cross feed channel 1, bowl-shape soft seal
2nd, upper limit pad 3 and lower sealing block 4, the bowl-shape soft seal 2 be arranged in feed channel 1 and between the two between be separated between
Gap, the upper limit pad 3 was arranged in feed channel 1 and positioned at the bowl-shape soft top of seal 3, and the lower sealing block 4 is set
Put and crossing in feed channel 1 and below bowl-shape soft seal 2, the lower sealing block 4 is hollow structure and hollow hole conduct
Air admission hole is used, when needing non-return sealing, and gas backstreaming extrudes bowl-shape soft seal inner chamber, and soft seal both sides are to overhanging
Contracting, makes bowl-shape soft seal and crosses that feed channel inwall gap is less and less or even complete fit contacts, can so play close
Envelope, if this can not be fully sealed together, bowl-shape soft seal is moved downward and close with lower sealing block under atmospheric pressure
Laminating, you can form the airtight defence line of second, dual-seal ensures there are enough sealing effectiveness, bowl-shape soft when needing air inlet
Seal in the presence of gas by the spacing fixed firmly reset of upper limit pad, by spacing shim to seal top returned upwards by motion
Reset without spring reset, assemble simple efficiency high, use cost is low, inner-walls of duct and sealing block dual-seal, sealing effect
It is really excellent, it is ensured that product is normally using unaffected.
Above-described embodiment and schema and non-limiting product form of the present utility model and style, any art
Appropriate change or modification that those of ordinary skill is done to it, all should be regarded as not departing from patent category of the present utility model.
Claims (1)
1. a kind of dual-seal improved structure of unidirectional gas circuit, it is characterised in that：Including crossing feed channel（1）, bowl-shape soft sealing
Part（2）, upper limit pad（3）With lower sealing block（4）, the bowl-shape soft seal（2）It was arranged on feed channel（1）It is interior and two
Gap, the upper limit pad are separated between person（3）It was arranged on feed channel（1）It is interior and positioned at bowl-shape soft seal（2）On
Side, the lower sealing block（4）It was arranged on feed channel（1）It is interior and positioned at bowl-shape soft seal（2）Lower section, the lower sealing block
（4）Used for hollow structure and hollow hole as air admission hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720345305.5U CN206600499U (en) | 2017-04-05 | 2017-04-05 | A kind of dual-seal improved structure of unidirectional gas circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720345305.5U CN206600499U (en) | 2017-04-05 | 2017-04-05 | A kind of dual-seal improved structure of unidirectional gas circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600499U true CN206600499U (en) | 2017-10-31 |
Family
ID=60146127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720345305.5U Expired - Fee Related CN206600499U (en) | 2017-04-05 | 2017-04-05 | A kind of dual-seal improved structure of unidirectional gas circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999334A (en) * | 2019-03-14 | 2019-07-12 | 广州市一森生物科技有限公司 | A kind of Medical check valve and its injecting method using negative pressure return |
-
2017
- 2017-04-05 CN CN201720345305.5U patent/CN206600499U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999334A (en) * | 2019-03-14 | 2019-07-12 | 广州市一森生物科技有限公司 | A kind of Medical check valve and its injecting method using negative pressure return |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20190405 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |