CN203115200U - Double-clip type check valve - Google Patents
Double-clip type check valve Download PDFInfo
- Publication number
- CN203115200U CN203115200U CN 201320130605 CN201320130605U CN203115200U CN 203115200 U CN203115200 U CN 203115200U CN 201320130605 CN201320130605 CN 201320130605 CN 201320130605 U CN201320130605 U CN 201320130605U CN 203115200 U CN203115200 U CN 203115200U
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- CN
- China
- Prior art keywords
- valve
- spring
- valve body
- seat
- flap
- 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 double-clip type check valve which comprises a valve body, a valve seat, a valve clack and a spring. A spring base is arranged at the upper end of the valve body. The lower end of the valve body is connected with the valve seat in a threaded mode. The valve seat and the valve clack are in sealing-surface fit. The spring is arranged between the valve clack and the spring base. The valve body and the spring base are integrally formed. The spring base is of a three-arm structure. A central through hole is formed in the spring base. A cylindrical boss is arranged at the lower end of the central through hole. The valve clack is movably matched with the spring base. The valve seat is provided with a filtering net layer. The filtering net layer is a corrosion-resisting metal filtering net. The double-clip type check valve is simple and compact in integral structure, capable of achieving unidirectional control over a working medium in a pipeline or a device, high in reliability, high in sensitivity and long in service life.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of Wafer Check Valves.
Background technique
Safety check is a kind of automatic valve that can prevent that ducted medium from flowing backwards, and safety check comparatively commonly used at present has Swing check valve, Lift check valve and Wafer Check Valves.The flap of Wafer Check Valves of the prior art only passes through the borehole jack of afterbody moulding on valve rod, when flap opens and closes, both need lean on stem guiding, need support by valve rod again, owing to be subjected to the compression shock that media flow produces for a long time, perhaps be subjected to the influence of water hammer, cause check valve sealing or sensitivity to descend, when containing hard impurity in the working medium, make sealing surface impaired easily, shorten the working life of safety check.
The model utility content
In order to overcome above shortcomings part in the prior art, the purpose of this utility model is to provide a kind of high and high Wafer Check Valves of sensitivity of reliability of realizing unidirectional control.
In order to reach above-mentioned purpose, the utility model adopts following concrete technological scheme: a kind of Wafer Check Valves, comprise valve body, valve seat, flap, spring, described valve body upper end is provided with spring seat, and valve body lower end is threaded with valve seat, and described valve seat arranges sealing surface with flap and cooperates, described spring is arranged between flap and the spring seat, described valve body and spring seat are one-body molded, described flap and spring seat movingly, described valve seat is provided with filter mesh layer.
Described spring seat is three arm configurations, which is provided with central through bore, is provided with cylindrical boss in the central through bore lower end.
Described flap lower surface is arc-shaped curved surface.
Described filter mesh layer is the corrosion resistant metal filter screen.
Compared with prior art, the utlity model has following outstanding advantage and effect: owing to be provided with above structure, this Wafer Check Valves is realized the high and sensitivity height of the reliability of unidirectional control, and the hard impurity in the energy filter medium, thereby reduce the wearing and tearing of sealing surface, prolong the working life of safety check.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is plan view of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.
As Fig. 1, shown in Figure 2, a kind of Wafer Check Valves, comprise valve body 1, valve seat 2, flap 3, spring 4, described valve body 1 upper end is provided with spring seat 1 (a), valve body 1 lower end is threaded with valve seat 2, described valve seat 2 arranges sealing surface with flap 3 and cooperates, described spring 4 is arranged between flap 3 and the spring seat 1 (a), described valve body 1 is one-body molded with spring seat 1 (a), spring seat 1 (a) is three arm configurations, which is provided with central through bore, be provided with cylindrical boss and spring 4 sockets in the central through bore lower end, when safety check is worked, spring can not produce radial-play, described flap 3 and spring seat 1 (a) movingly, the flap lower surface is arc-shaped curved surface, can reduce the medium flow resistance; Described valve seat is provided with corrosion resistant metal filter mesh layer 5, the hard impurity in the energy filter medium, thereby the wearing and tearing of reduction sealing surface, the working life of prolongation safety check.
Above-mentioned only is a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (4)
1. Wafer Check Valves, comprise valve body, valve seat, flap, spring, described valve body upper end is provided with spring seat, valve body lower end is threaded with valve seat, and described valve seat arranges sealing surface with flap and cooperates, and described spring is arranged between flap and the spring seat, it is characterized in that, described valve body and spring seat are one-body molded, described flap and spring seat movingly, described valve seat is provided with filter mesh layer.
According to claim 1 to the folder safety check, it is characterized in that described spring seat is three arm configurations, which is provided with central through bore, be provided with cylindrical boss in the central through bore lower end.
3. according to claim 1 to the folder safety check, it is characterized in that described flap lower surface is arc-shaped curved surface.
4. according to claim 1 to the folder safety check, it is characterized in that described filter mesh layer is the corrosion resistant metal filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130605 CN203115200U (en) | 2013-03-21 | 2013-03-21 | Double-clip type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130605 CN203115200U (en) | 2013-03-21 | 2013-03-21 | Double-clip type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115200U true CN203115200U (en) | 2013-08-07 |
Family
ID=48895548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320130605 Expired - Fee Related CN203115200U (en) | 2013-03-21 | 2013-03-21 | Double-clip type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288190A (en) * | 2018-12-10 | 2020-06-16 | 中国科学院沈阳自动化研究所 | Wafer check valve with flow detection function |
-
2013
- 2013-03-21 CN CN 201320130605 patent/CN203115200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288190A (en) * | 2018-12-10 | 2020-06-16 | 中国科学院沈阳自动化研究所 | Wafer check valve with flow detection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140321 |