CN103925375A - High-pressure trigger stop valve - Google Patents
High-pressure trigger stop valve Download PDFInfo
- Publication number
- CN103925375A CN103925375A CN201410031057.8A CN201410031057A CN103925375A CN 103925375 A CN103925375 A CN 103925375A CN 201410031057 A CN201410031057 A CN 201410031057A CN 103925375 A CN103925375 A CN 103925375A
- Authority
- CN
- China
- Prior art keywords
- valve
- trigger
- spool
- spring
- water outlet
- 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
Classifications
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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
- F16K17/0486—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 mechanical actuating means
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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
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
- F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
- F16K21/12—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with hydraulically-operated opening means; with arrangements for pressure relief before opening
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
Abstract
The invention relates to a high-pressure trigger stop valve which comprises a valve body, an end cover, a spring, a valve element, a valve seat, an ejector pin and a trigger. A water inlet, a water outlet and a balance opening are formed in the valve body. The trigger is used for controlling opening and closing of the valve. The end cover, the valve body and the trigger are sequentially connected. The spring, the valve element, the valve seat and the ejector pin are sequentially disposed inside the valve body from top to bottom. The inside of valve body is divided into an upper cavity and a lower cavity by the valve element. The balance opening is communicated with the water inlet and the lower cavity. The spring is fixedly connected between the end cover and the valve element. When no external force is borne, the spring allows the valve element to press on the valve seat to block the water inlet and the water outlet. When external force is borne, the external force acts on the trigger, the trigger pushes the ejector pin, and the ejector pin pushes the valve element to move to communicate the water inlet and the water outlet. The balance opening performs liquid power compensation by using pressure difference, and the problem of opening and closing difficulty is solved. The high-pressure trigger stop valve is simple in structure, small in size, high in work reliability, low in manufacturing cost and convenient to maintain. In addition, the high-pressure trigger stop valve adopts novel anti-corrosion materials to perform hard-soft matching, and the service life of the valve is prolonged.
Description
Technical field
The present invention relates to a kind of high pressure trigger-type, stop valve that can snap switch, belongs to valve class, is mainly applicable to the high pressure cutting fire extinguishing dual-purpose gun on high-pressure plunger pump, can also be applied to hydraulic fluid transmission association area.
Background technique
Traditional high pressure hand-operated formula stop valve great majority do not adopt balance port structure, and owing to there is larger pressure reduction back pressure, when valve is opened, steering force is larger, and easily stuck, reliability is poor, cannot be applicable to high pressure and ultra-high voltage environment and operating mode.
Summary of the invention
The present invention is used for providing a kind of high trigger squeeze stop valve, is intended to overcome valve in the past and cannot be applicable to the requirement under high pressure and ultra-high voltage environment and operating mode.
The present invention adopts following technological scheme:
A kind of high trigger squeeze stop valve, comprise valve body (1), end cap (2), spring (3), spool (4), valve seat (5), push rod (6), trigger (7), water intake (A), water outlet (B), balance port (C), valve body has water inlet A and water outlet B on (1), trigger (7) is for the switch of control valve, end cap (2), valve body (1), trigger (7) is connected successively, spring (3), spool (4), valve seat (5) and push rod (6) are placed in valve inner from top to bottom successively, spool (4) is divided into epicoele and cavity of resorption by valve inner, balance port C is communicated with water inlet A and cavity of resorption, spring (3) is fixedly connected between end cap (2) and spool (4), when not being subject to external force, it is upper that spring (3) makes spool (4) be pressed in valve seat (5), cuts off water inlet A and water outlet B, and valve cuts out, when being subject to external force, External Force Acting is in trigger (7), and trigger promotes push rod (6), and push rod (6) promotes spool (4) motion then, is communicated with water inlet A and water outlet B.Valve is opened.External force disappears, and spool (4) spring-loaded, withstands valve seat (5), and valve cuts out automatically.
Between spool (4) and valve seat (5), form cone valve seal form.
It is that Precipitation-hardening Stainless Steel 17-4PH, the valve seat (5) that plasma nitriding and low temperature salt-bath nitriding are strengthened is aluminum bronze QAL9-4 that valve body (1) adopts 1Cr18Ni9Ti Austenitic Stainless Steel, spool (4).
By different spring (3) and push rod (6) diameter value, adapt to different pressure environments.
Beneficial effect
By balance port, draw high pressure water to push rod (6) one sides, utilize pressure reduction, equilibrium liquid power, realizes snap switch, is applicable to high pressure and ultra-high voltage environment and operating mode.
By different spring (3) and push rod (6) diameter value, can apply under different pressure environments.
This patent not only adopts balance port structure, and adopts direct-acting type cone valve structure, compared with other similar stop valves, have easy to operate, simple in structure, easy processing, stability is strong, volume is little lightweight, installs, also more convenient simple advantage of dismounting and maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of high trigger squeeze stop valve of the present invention.
In figure: 1, valve body, 2, end cap, 3, spring, 4, spool, 5, valve seat, 6, push rod, 7, trigger, A, water intake, B, water outlet, C, balance port.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.The high trigger squeeze stop valve of the present invention, for controlling the switch of high pressure cutting fire extinguishing dual-purpose gun, has valve body 1, end cap 2, spring 3, spool 4, valve seat 5, and push rod 6, trigger 7 form.Water inlet A connects the water outlet of high-pressure service pump, and water outlet B is connected with fire extinguishing dual-purpose gun rifle head, between water inlet A and water outlet B, has pressure difference.From water inlet A, open balance port to push rod one side, utilize pressure reduction to carry out flow force compensation, pull trigger 7, promote push rod 6 motions, be then with movable valve plug 4 motions, thereby open spool 4, high pressure water flows into water outlet B from water inlet A, and valve is opened.When trigger 7 does not have the stressed used time of doing, spring provides restoring force, acts on spool 4, and valve is closed, and realizes cut-off effect.
When the pressure reduction between water inlet A and water outlet B is very large, can be by selecting different springs that larger restoring force is provided, while making trigger 7 there is no External Force Acting, spring provides enough restoring forces, acts on spool 4, and valve is closed; When the pressure reduction between water inlet A and water outlet B is very little, by increasing the diameter of push rod 6, increase the power making progress that push rod 6 is subject to, valve can be opened fast.
Claims (4)
1. one kind high trigger squeeze stop valve, comprise valve body (1), end cap (2), spring (3), spool (4), valve seat (5), push rod (6), trigger (7), water intake (A), water outlet (B), balance port (C), on valve body (1), have water intake (A) and water outlet (B), trigger (7) is for the switch of control valve, end cap (2), valve body (1), trigger (7) is connected successively, spring (3), spool (4), valve seat (5) and push rod (6) are placed in valve inner from top to bottom successively, spool (4) is divided into epicoele and cavity of resorption by valve inner, balance port (C) is communicated with water inlet A and cavity of resorption, spring (3) is fixedly connected between end cap (2) and spool (4), when not being subject to external force, it is upper that spring (3) makes spool (4) be pressed in valve seat (5), cuts off water intake (A) and water outlet (B), when being subject to external force, External Force Acting is in trigger (7), and trigger promotes push rod (6), and push rod (6) promotes spool (4) motion then, is communicated with water intake (A) and water outlet (B).
2. high trigger squeeze stop valve according to claim 1, is characterized in that: between spool (4) and valve seat (5), form cone valve seal form.
3. high trigger squeeze stop valve according to claim 1, is characterized in that: it is that Precipitation-hardening Stainless Steel 17-4PH, the valve seat (5) that plasma nitriding and low temperature salt-bath nitriding are strengthened is aluminum bronze QAL9-4 that valve body (1) adopts 1Cr18Ni9Ti Austenitic Stainless Steel, spool (4).
4. high trigger squeeze stop valve according to claim 1, is characterized in that: by different springs (3), the push rod of different-diameter (6) adapts to different pressure environments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031057.8A CN103925375A (en) | 2014-01-22 | 2014-01-22 | High-pressure trigger stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031057.8A CN103925375A (en) | 2014-01-22 | 2014-01-22 | High-pressure trigger stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103925375A true CN103925375A (en) | 2014-07-16 |
Family
ID=51143695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410031057.8A Pending CN103925375A (en) | 2014-01-22 | 2014-01-22 | High-pressure trigger stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103925375A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216120A (en) * | 2008-01-08 | 2008-07-09 | 四川威克自控技术有限公司 | Straight journey check valve |
| CN201322127Y (en) * | 2008-11-17 | 2009-10-07 | 宁波骏嘉重型机械制造有限公司 | Manual high-pressure sluice valve |
| CN202418850U (en) * | 2011-07-06 | 2012-09-05 | 江南大学 | Cam rapid opening and closing valve |
| JP2013133889A (en) * | 2011-12-27 | 2013-07-08 | Eagle Industry Co Ltd | Valve device |
-
2014
- 2014-01-22 CN CN201410031057.8A patent/CN103925375A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216120A (en) * | 2008-01-08 | 2008-07-09 | 四川威克自控技术有限公司 | Straight journey check valve |
| CN201322127Y (en) * | 2008-11-17 | 2009-10-07 | 宁波骏嘉重型机械制造有限公司 | Manual high-pressure sluice valve |
| CN202418850U (en) * | 2011-07-06 | 2012-09-05 | 江南大学 | Cam rapid opening and closing valve |
| JP2013133889A (en) * | 2011-12-27 | 2013-07-08 | Eagle Industry Co Ltd | Valve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140716 |
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| RJ01 | Rejection of invention patent application after publication |