CN105840889A - Lifting type check valve - Google Patents
Lifting type check valve Download PDFInfo
- Publication number
- CN105840889A CN105840889A CN201610386421.1A CN201610386421A CN105840889A CN 105840889 A CN105840889 A CN 105840889A CN 201610386421 A CN201610386421 A CN 201610386421A CN 105840889 A CN105840889 A CN 105840889A
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- springs
- pressing plate
- spring
- 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.)
- Granted
Links
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
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- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
Abstract
A lifting type check valve comprises a valve body, a valve deck and a valve clack; the valve deck is fixedly connected with the valve body; the cross section of a valve base is in the shape of L; when the valve is closed, a horizontal segment of the valve is connected with the bottom of the valve clack in an abutting manner; the upper end of the valve clack is fixedly provided with elastic sealing rings through pressing plates A; the outer edges of the elastic sealing rings are matched with the valve base to form sealing pairs; at least two supporting frames are arranged on the outer circle of each pressing plate A at intervals; the supporting frames are sequentially sleeved with springs; the outer circle faces of the springs are attached to the outer edges of the elastic sealing rings; pressing plates B are arranged above the springs and fixed to the valve clack through bolts; and by adjusting the tightness degree of the bolts, pressure applied to the outer edges of the elastic sealing rings by the springs can be adjusted. The lifting type check valve has the beneficial effects that the radial compression amount of the springs is changed by adjusting the tightening degree of the bolts so that the pressure applied to the outer edges of the elastic sealing rings by the springs can be changed, and therefore pressure generated when the valve is opened is adjusted, the application range of the valve is wider, and the valve is convenient for a customer to use.
Description
Art
The present invention relates to a kind of check-valves, particularly to a kind of lift check valve.
Background technology
Lift check valve is to act on, by medium power, the function that on flap, realization prevents medium from flowing backwards.Existing lift check valve, during refluence, the hydrostatic pressure of fluid is on the flap opened so that flap declines closes, and flap stops fluid reflux.At present, it is the most unadjustable that the flap of lift check valve opens pressure, in the pipeline that some are special, needs to open pressure to meet requirement through change, it is necessary to integral replacing valve, uses inconvenience.
Summary of the invention
In order to overcome the disadvantages mentioned above of existing lift check valve, the present invention provides a kind of lift check valve that can open pressure with control valve.
nullThe technical solution adopted for the present invention to solve the technical problems is，A kind of lift check valve，Including valve body、Valve gap、Flap，Valve gap is fixedly connected with the valve body，Snout cavity and outlet plenum are set in valve body，Valve seat is set between snout cavity and outlet plenum，Valve seat cross section is L-shaped，During valve closing, its horizontal segment abuts bottom described flap，The lower end of valve gap is provided with fairlead，Flap upper end is fixedly installed valve rod，Valve rod and fairlead are adaptive and can longitudinal sliding motion in fairlead，The upper end of flap fixedly mounts elastic seal ring by pressing plate A，The outer rim of elastic seal ring and valve seat cooperatively form sealing pair，At interval, the outer ring of pressing plate A, at least 2 bracing frames are set，Spring is sleeved on bracing frame successively，The periphery of spring is fitted with elastic seal ring outer rim，It is provided above pressing plate B at spring，Pressing plate B is fixed with flap by bolt，By the degree of tightness i.e. adjustable springs adjusting bolt, described elastic seal ring outer rim is executed stressed size.
The invention has the beneficial effects as follows: by adjust bolt tighten degree, thus change the radial compression amount of spring, and then change spring elastic seal ring outer rim is executed stressed size, thus pressure when control valve is opened, make the valve scope of application wider, facilitate client to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1；
In figure: 1. valve gap；2. fairlead；3. valve rod；4. valve body；5. outlet plenum；6. valve seat；7. snout cavity；8. bolt；9. pressing plate B；10. spring；11. bracing frames；12. pressing plate A；13. elastic seal rings；14. flaps.
Detailed description of the invention
nullAs shown in Figure 1，A kind of lift check valve，Including valve body 4、Valve gap 1、Flap 13，Valve gap 1 is fixing with valve body 4 to be connected，Snout cavity 7 and outlet plenum 5 are set in valve body 4，Valve seat 6 is set between snout cavity 7 and outlet plenum 5，Valve seat 6 cross section is L-shaped，During valve closing, its horizontal segment abuts bottom described flap 14，The lower end of valve gap 1 is provided with fairlead 2，Flap 14 upper end is fixedly installed valve rod 3，Valve rod 3 is adaptive with fairlead 2 and can longitudinal sliding motion in fairlead 2，The upper end of flap 14 fixedly mounts elastic seal ring 13 by pressing plate A12，The outer rim of elastic seal ring 13 and valve seat 6 cooperatively form sealing pair，At interval, the outer ring of pressing plate A12, at least 2 bracing frames 11 are set，Preferably 4 bracing frames，So can fix spring 10 at four direction，Spring 10 is sleeved on bracing frame 11 successively，The periphery of spring 10 is fitted with elastic seal ring 13 outer rim，It is provided above pressing plate B9 at spring 10，Pressing plate B9 is fixed with flap 14 by bolt 8，By the degree of tightness i.e. adjustable springs 10 adjusting bolt 8, described elastic seal ring 13 outer rim is executed stressed size，Thus pressure during control valve unlatching.
Claims (1)
- null1. a lift check valve，Including valve body、Valve gap、Flap，Described valve gap is fixedly connected with the valve body，Snout cavity and outlet plenum are set in described valve body，Between described snout cavity and outlet plenum, valve seat is set，Described valve seat cross section is L-shaped，During valve closing, its horizontal segment abuts bottom described flap，The lower end of described valve gap is provided with fairlead，Described flap upper end is fixedly installed valve rod，Described valve rod and described fairlead are adaptive and can longitudinal sliding motion in described fairlead，The upper end of described flap fixedly mounts elastic seal ring by pressing plate A，The outer rim of described elastic seal ring and described valve seat cooperatively form sealing pair，It is characterized in that: at interval, the outer ring of described pressing plate A, at least 2 bracing frames are set，Spring is sleeved on support frame as described above successively，The periphery of described spring is fitted with described elastic seal ring outer rim，It is provided above pressing plate B at described spring，Pressing plate B is fixed with flap by bolt，By spring described in the degree of tightness i.e. scalable of the described bolt of adjustment, described elastic seal ring outer rim is executed stressed size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386421.1A CN105840889B (en) | 2016-06-04 | 2016-06-04 | A kind of lift check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386421.1A CN105840889B (en) | 2016-06-04 | 2016-06-04 | A kind of lift check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840889A true CN105840889A (en) | 2016-08-10 |
| CN105840889B CN105840889B (en) | 2018-03-06 |
Family
ID=56595716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610386421.1A Active CN105840889B (en) | 2016-06-04 | 2016-06-04 | A kind of lift check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840889B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412722A (en) * | 2020-11-05 | 2021-02-26 | 太原理工大学 | High-speed active lubrication radial static balance plunger pump for high-water-based medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437492A (en) * | 1982-02-25 | 1984-03-20 | Taylor Julian S | Poppet check valve |
| GB2136540A (en) * | 1983-03-10 | 1984-09-19 | Uss Eng & Consult | Valve with replaceable insert |
| CN2095983U (en) * | 1991-07-18 | 1992-02-12 | 河南省获嘉县工业锅炉阀门总厂 | Spring non-return valve |
| CN201170162Y (en) * | 2008-01-04 | 2008-12-24 | 沈阳鼓风机(集团)有限公司 | Remaining gap valve regulation apparatus |
| CN103104724A (en) * | 2012-12-11 | 2013-05-15 | 天津市国威给排水设备制造有限公司 | Check valve with spring pre-tightening force adjustable |
| CN205781120U (en) * | 2016-06-04 | 2016-12-07 | 江苏神通阀门股份有限公司 | A kind of lift check valve |
-
2016
- 2016-06-04 CN CN201610386421.1A patent/CN105840889B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437492A (en) * | 1982-02-25 | 1984-03-20 | Taylor Julian S | Poppet check valve |
| GB2136540A (en) * | 1983-03-10 | 1984-09-19 | Uss Eng & Consult | Valve with replaceable insert |
| CN2095983U (en) * | 1991-07-18 | 1992-02-12 | 河南省获嘉县工业锅炉阀门总厂 | Spring non-return valve |
| CN201170162Y (en) * | 2008-01-04 | 2008-12-24 | 沈阳鼓风机(集团)有限公司 | Remaining gap valve regulation apparatus |
| CN103104724A (en) * | 2012-12-11 | 2013-05-15 | 天津市国威给排水设备制造有限公司 | Check valve with spring pre-tightening force adjustable |
| CN205781120U (en) * | 2016-06-04 | 2016-12-07 | 江苏神通阀门股份有限公司 | A kind of lift check valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412722A (en) * | 2020-11-05 | 2021-02-26 | 太原理工大学 | High-speed active lubrication radial static balance plunger pump for high-water-based medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105840889B (en) | 2018-03-06 |
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