CN2074849U - Opposite clamping type check valve - Google Patents
Opposite clamping type check valve Download PDFInfo
- Publication number
- CN2074849U CN2074849U CN 90219411 CN90219411U CN2074849U CN 2074849 U CN2074849 U CN 2074849U CN 90219411 CN90219411 CN 90219411 CN 90219411 U CN90219411 U CN 90219411U CN 2074849 U CN2074849 U CN 2074849U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- flap
- check valve
- valve rod
- 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.)
- Withdrawn
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- Check Valves (AREA)
Abstract
The utility model relates to opposite clamping type check valve which is provided with a sleeve-shaped valve body. The water out end of the valve body is fixed with a valve-rod support frame which is provided with a flow passage hole in the form of screw. One end of a valve rod which is sheathed with a return spring is extended into the through hole of the support frame, and the other end is screwed in the circular plate-shaped valve clack which can seal the water-in pore canal of the valve body. The opposite clamping type check valve is oppositely clamped on a pipeline by depending on the connecting flange of the pipeline, and thus the flange of the self of the general check valve is omitted. The weight of the utility model is only one tenth of the weight of the usual check valve. The utility model has the advantages of small flow resistance, and good sealability.
Description
The utility model provides a kind of Wafer Check Valves, has the valve body that inside is provided with runner and runner gap, and the flap of following the closed flow gap of cantilever valve rod displacement in the valve body, belongs to the valve technology.
Safety check commonly used has two kinds of structural types substantially.A kind of is rotary-open type, and another kind then is a rise-fall type.In the use, they all have the feature of one-directional fluid flow in the good controlling plumbing fixtures, still, also exist heaviness, and consume material is many, and price is more expensive, the deficiency that flow resistance is big.
The purpose of this utility model is at the above-mentioned deficiency of safety check commonly used, provides a kind of flow resistance less, and sealing is tight, and volume is small and exquisite, lightweight Wafer Check Valves.
The purpose of this utility model relies on following technical measures to realize.
The sleeve shape valve body is set, and the waterexit end of valve body is rotated with the valve rod supporting frame that has the runner hole, and valve rod one end of overcoat return spring stretches into the supporting frame through hole, but the other end screws in the central boss of the garden plate valve lobe in closed valve water inlet duct.
During installation, after pipeline adpting flange hole and valve flowing channel hole aligned, clamp with bolt.
If at the bottom of the central boss of flap, all expansion chambers of precession of threaded stem section are set, and sphere is processed in valve rod cantilever termination, like this, when the valve rod termination all enters the chamber of expansion, valve rod and flap form ball pivot in certain limit, to eliminating machining error, the airtight performance that increases flap and runner hole is favourable undoubtedly for this.Consider easy for installationly, the valve ear that clamping bolt therefrom passes is set in the outer rim of valve body.
Wafer Check Valves is work like this:
When fluid flows through when coming towards the flap direction, flap is backed down by the flowing pressure of medium, and fluid flows through around flap earlier, flows out safety check by supporting frame then.
When the fluid reverse flow, (flow through when coming) flap to flap and pushed away, back into flap and valve inleting water oral area position contacting, the reverse flow of prevention fluid by fluid flow pressure from the supporting frame direction.
This Wafer Check Valves separated and horizontal two kinds.Horizontal Wafer Check Valves has the spring that is enclosed within on the valve rod between its flap and the supporting frame.Vertical Wafer Check Valves is this spring not then.
The adpting flange in this Wafer Check Valves tube road to being clipped on the pipeline, thereby has saved the flange of general safety check self with it.Its weight has only 1/10th of safety check commonly used, and the valve body inner flow passage is vertical, and not only flow resistance is less, and good airproof performance.
Accompanying drawing is the utility model Wafer Check Valves most preferred embodiment structural drawing, and wherein Fig. 1 is the overall structure schematic representation, and Fig. 2 is valve rod, flap joint structural representation, below in conjunction with its technical characteristics of description of drawings.
Valve body (1) afterbody (i.e. the part that links to each other with supporting frame (5)) and supporting frame (5) screwed connection, leave three fan-shaped openings on the supporting frame (5), leave circular holes in the middle of the supporting frame, lining (6) is arranged in the hole, inject valve rod (3) in the lining, valve rod (3) can be free to slide in lining, valve rod (3) is connected with flap (2) universal type, promptly establishes the expansion chamber at the bottom of the flap central boss, valve rod termination sphere, adopt the segment screw thread, flap (2) contacts closely with the valve inleting water oral area.
When fluid from A when B flows, flap (2) is backed down by fluid, fluid flows through around flap (2), the fan shaped borehole by supporting frame (5) flows out safety check then.
(when B flows to A) flap (2) is pushed away by fluid when the fluid reverse flow, gets back to initial position) flap closely contacts with the valve inleting water oral area, do not allow fluid flow through.Shock mount on the horizontal Wafer Check Valves (4) utilizes spring thrust and fluid flow pressure together flap (2) to be pushed back initial position when the fluid reverse flow.Shock mount (4) not on vertical Wafer Check Valves.During the fluid reverse flow, rely on fluid flow pressure and the weight of flap own to push back initial position to flap (2).
Claims (3)
1, a kind of Wafer Check Valves, have inside and be provided with the valve body of runner and runner gap, and the flap of following the closed flow gap of cantilever valve rod displacement in the valve body, it is characterized in that being provided with the sleeve shape valve body, the waterexit end of valve body is rotated with the valve rod supporting frame that has the runner hole, valve rod one end of overcoat return spring stretches into the supporting frame through hole, but the other end screws in the central boss of the garden plate valve lobe in closed valve water inlet duct.
2, Wafer Check Valves according to claim 1 is characterized in that at the bottom of the central boss of flap, and all expansion chambers of precession of threaded stem section are set, and sphere is processed in valve rod cantilever termination.
3,, it is characterized in that the valve ear that clamping bolt therefrom passes being set in the outer rim of valve body according to claim 1 and 2 described Wafer Check Valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219411 CN2074849U (en) | 1990-09-08 | 1990-09-08 | Opposite clamping type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219411 CN2074849U (en) | 1990-09-08 | 1990-09-08 | Opposite clamping type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2074849U true CN2074849U (en) | 1991-04-10 |
Family
ID=4898092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90219411 Withdrawn CN2074849U (en) | 1990-09-08 | 1990-09-08 | Opposite clamping type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2074849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776167A (en) * | 2010-03-03 | 2010-07-14 | 夏育红 | Check valve |
| CN109099193A (en) * | 2018-08-23 | 2018-12-28 | 浙江昌隆石化设备有限公司 | A kind of Novel air valve type check-valves |
-
1990
- 1990-09-08 CN CN 90219411 patent/CN2074849U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776167A (en) * | 2010-03-03 | 2010-07-14 | 夏育红 | Check valve |
| CN109099193A (en) * | 2018-08-23 | 2018-12-28 | 浙江昌隆石化设备有限公司 | A kind of Novel air valve type check-valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |