CN107883027A - Check-valves - Google Patents
Check-valves Download PDFInfo
- Publication number
- CN107883027A CN107883027A CN201711274281.XA CN201711274281A CN107883027A CN 107883027 A CN107883027 A CN 107883027A CN 201711274281 A CN201711274281 A CN 201711274281A CN 107883027 A CN107883027 A CN 107883027A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- hinged
- flap
- piston
- check
- 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
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 229920001195 polyisoprene Polymers 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of check-valves, including valve body, inlet and outlet is carried in the valve pocket in valve body, intake channel medial extremity diagonally distributes, flap is hinged with above the intake channel medial extremity, flap is covered and closed off downwards at the intake channel medial extremity, it is characterized in that：Head rod is hinged with the flap, head rod is hinged with the second connecting rod, second connecting rod end carries piston, piston be arranged in sleeve and with liquid-tight envelope at hub internal bore cooperation, sleeve is fixed on valve body, hub internal bore has to be threaded with capping, preloading spring is provided between piston and capping in the hub internal bore to outward opening, the external openend of sleeve.The check-valves can apply stronger pretension to flap, and can adjust the restoring force of check-valves to adapt to different situations.
Description
Technical field
The present invention relates to a kind of check-valves.
Background technology
Conventional check valves include valve body, and inlet and outlet, oblique point of intake channel medial extremity are carried in the valve pocket in valve body
Cloth, the intake channel medial extremity top are hinged with flap, and flap is covered and closed off downwards at the intake channel medial extremity,
By the angularly disposed deadweight of flap, flap self-closed intake channel, but the closing dynamics of this check-valves is smaller, and
It can not be adjusted according to different medium and different situations.
The content of the invention
In view of insufficient existing for background technology, the technical problems to be solved by the invention are to provide a kind of check-valves, its valve
Valve restoring force is stronger and can adjust the restoring force of flap.
The present invention is adopted the following technical scheme that to complete：Check-valves, including valve body, carry in the valve pocket in valve body into
Mouth and outlet, intake channel medial extremity diagonally distribute, and are hinged with flap above the intake channel medial extremity, flap covers downwards
And be enclosed at the intake channel medial extremity, head rod is hinged with the flap, head rod is connected with second
Bar is hinged, and the second connecting rod end carries piston, and piston is arranged in sleeve and solid with liquid-tight envelope at hub internal bore cooperation, sleeve
It is scheduled on valve body, hub internal bore has to outward opening, and the external openend of the sleeve is threaded with capping, in the sleeve
In hole preloading spring is provided between piston and capping.
The present invention provides check-valves can apply stronger pretension to flap, and can adjust the reply of check-valves
For power to adapt to different situations, user need to only turn capping, you can adjust the pretightning force to preloading spring, and then adjust flap
Restoring force.
Brief description of the drawings
The present invention has drawings described below：
Fig. 1 is the structure schematic cross-sectional view for the check-valves that the first embodiment of the invention provides.
Fig. 2 is the structure schematic cross-sectional view for the check-valves that second of embodiment of the present invention provides.
Embodiment
Accompanying drawing illustrates technical scheme and embodiment, further describes embodiment in conjunction with accompanying drawing below
Each relevant details and its operation principle.
Shown in reference picture 1, check-valves provided by the invention, including valve body 1, with import and go out in the valve pocket in valve body 1
Mouthful, the medial extremity of intake channel 2 diagonally distributes, and flap 3 is hinged with above the medial extremity of intake channel 2, the covering downwards of flap 3 is simultaneously
It is enclosed at the medial extremity of intake channel 2, head rod 4 is hinged with the flap 3, head rod 4 and second connects
Extension bar 5 is be hinged, and the end of the second connecting rod 5 carry piston 6, piston 6 be arranged at sleeve 7 it is interior and with it is liquid-tight at the inner hole of sleeve 7
Envelope, sleeve 7 are fixed on valve body 1, and the endoporus of sleeve 7 has is threaded with envelope to outward opening, the external openend of the sleeve 7
Lid 8, preloading spring 9 is provided between piston 6 and capping 8 in the endoporus of sleeve 7.The head rod 4, the second connecting rod
The part that 5 is be hinged, piston 6 and sleeve 7 are in valve pocket is wrapped in bellows 10, and the both ends of bellows 10 seal with valve body 1
Connection, the bellows 10 can be realized to head rod 4, the second connecting rod 5 is hinged, piston 6 and sleeve 7 are in valve pocket
Partial protection, make its not contact medium, avoid being etched.
Shown in reference picture 2, second of embodiment of the invention and the first embodiment are essentially identical, differ only in：It is described
The equal sealed envelope in part that head rod 4, the second connecting rod 5 are be hinged, piston 6 and sleeve 7 are in valve pocket is in elastic caoutchouc
In set 11.The space that elastic rubber sleeve 11 takes in the present embodiment is small, while can also realize and head rod 4, second is connected
The protection for the part that extension bar 5 is be hinged, piston 6 and sleeve 7 are in valve pocket, makes its not contact medium, suitable for smaller non-return
In valve.
Claims (3)
1. a kind of check-valves, including valve body, inlet and outlet, oblique point of intake channel medial extremity are carried in the valve pocket in valve body
Cloth, the intake channel medial extremity top are hinged with flap, and flap is covered and closed off downwards at the intake channel medial extremity,
It is characterized in that：Head rod is hinged with the flap, head rod is hinged with the second connecting rod, the second connecting rod end
With piston, piston is arranged in sleeve and is fixed on liquid-tight envelope at hub internal bore cooperation, sleeve on valve body, hub internal bore tool
Have to outward opening, the external openend of the sleeve is threaded with capping, is set in the hub internal bore between piston and capping
It is equipped with preloading spring.
2. check-valves according to claim 1, it is characterized in that：The head rod, the second connecting rod are be hinged, piston and
The part that sleeve is in valve pocket is wrapped in bellows, and bellows both ends are connected with valve seal.
3. check-valves according to claim 1, it is characterized in that：The head rod, the second connecting rod are be hinged, piston and
Sleeve is in the equal sealed envelope in part in valve pocket in elastic caoutchouc set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274281.XA CN107883027A (en) | 2017-12-06 | 2017-12-06 | Check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274281.XA CN107883027A (en) | 2017-12-06 | 2017-12-06 | Check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107883027A true CN107883027A (en) | 2018-04-06 |
Family
ID=61772959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274281.XA Pending CN107883027A (en) | 2017-12-06 | 2017-12-06 | Check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107883027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109568776A (en) * | 2018-12-20 | 2019-04-05 | 庞玲 | A kind of department of anesthesia's nursing anaesthetic spraying device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669500A (en) * | 1986-05-23 | 1987-06-02 | Wheatley Pump And Valve, Inc. | Check valve actuator |
| US20130299162A1 (en) * | 2011-01-25 | 2013-11-14 | Ts Innovation As | Check valve |
| CN203836292U (en) * | 2014-05-04 | 2014-09-17 | 立信阀门集团有限公司 | Check valve with opening pressure adjustable |
| CN106286908A (en) * | 2016-08-24 | 2017-01-04 | 英诺威阀业有限公司 | A kind of quiet Slow Close Valve of high-performance |
| CN207673899U (en) * | 2017-12-06 | 2018-07-31 | 凯瑞特阀业有限公司 | Check-valves |
-
2017
- 2017-12-06 CN CN201711274281.XA patent/CN107883027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669500A (en) * | 1986-05-23 | 1987-06-02 | Wheatley Pump And Valve, Inc. | Check valve actuator |
| US20130299162A1 (en) * | 2011-01-25 | 2013-11-14 | Ts Innovation As | Check valve |
| CN203836292U (en) * | 2014-05-04 | 2014-09-17 | 立信阀门集团有限公司 | Check valve with opening pressure adjustable |
| CN106286908A (en) * | 2016-08-24 | 2017-01-04 | 英诺威阀业有限公司 | A kind of quiet Slow Close Valve of high-performance |
| CN207673899U (en) * | 2017-12-06 | 2018-07-31 | 凯瑞特阀业有限公司 | Check-valves |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109568776A (en) * | 2018-12-20 | 2019-04-05 | 庞玲 | A kind of department of anesthesia's nursing anaesthetic spraying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |
|
| RJ01 | Rejection of invention patent application after publication |