CN201747935U - Gas-drive stop valve - Google Patents
Gas-drive stop valve Download PDFInfo
- Publication number
- CN201747935U CN201747935U CN2010202374463U CN201020237446U CN201747935U CN 201747935 U CN201747935 U CN 201747935U CN 2010202374463 U CN2010202374463 U CN 2010202374463U CN 201020237446 U CN201020237446 U CN 201020237446U CN 201747935 U CN201747935 U CN 201747935U
- Authority
- CN
- China
- Prior art keywords
- main valve
- piston
- valve
- piston rod
- clack
- 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
Links
Images
Abstract
The utility model provides a gas-drive stop valve and is technically characterized in that the lower end of the cylinder body of a gas cylinder is fixedly connected with a main valve cover through a bolt; the main valve cover is connected with a valve body flange through a bolt; a piston is mounted in the cylinder body of the gas cylinder; a sealing ring is arranged between the piston and the inner wall of the cylinder body of the gas cylinder; one end of a piston rod is connected with the piston through a clamping key, and the other end of the piston rod passes through the main valve cover and extends into an inner cavity of the valve body; a water inlet pipe is mounted on one side of the valve body; a main valve core, a connecting sleeve pipe and a main valve clack are welded into a whole so as to form a valve core; a ring cavity is formed on one side of the main valve core in the position close to the valve body; a damping hole formed on the main valve core is communicated with the ring cavity; a water outlet is formed on the main valve seat; a conical surface of the main valve clack and the main valve seat form a sealing pair; a hole is formed in the middle of the main valve clack; an unloading rod is mounted in the valve core; one end of the unloading rod is connected with the piston rod through screw threads; and a radial hole is formed on the unloading rod. The stop valve has the characteristic of small lifting force during opening and closing.
Description
Technical field:
The utility model relates to a kind of shutoff valve, and particularly a kind of air pressure drives the stop valve of opening and closing.
Background technique:
Stop valve particularly high pressure and heavy caliber stop valve because of open and close resistance excessive adopt electronic or surge to drive open and close.Manual and pneumatic power value is less and be difficult to the switching task of competent heavy caliber or high-pressure stop valve.Electronic or surge all and need use in the place that power supply arranged, and some high pressure and bigbore stop valve in the open air or the place that is difficult to switch on use, adopting electronic or surging has practical difficulty.
Summary of the invention:
The purpose of this utility model provides a kind of air pressure and drives stop valve, and this air pressure drives stop valve and has the little characteristics of when keying lifting force.
The technical solution of the utility model is:
A kind of air pressure drives stop valve, comprises driving mechanism, main valve, and wherein driving mechanism comprises: cylinder block, piston rod, piston; Main valve comprises: valve body, main valve plug, main valve clack, coupling sleeve, main valve lid, unloader lever, intake pipe, main valve seat.Cylinder block in the driving mechanism is the hollow circular cylinder of epimere sealing, and its lower end is affixed by bolt and main valve lid, and the main valve lid is connected with bolt with valve flange.Piston is housed in the cylinder block, is provided with seal ring between piston and cylinder block inwall.One end of piston rod is connected by the card key with piston, and the other end of piston rod passes the inner chamber that the main valve lid extend into valve body.One side of valve body is equipped with intake pipe, mounting flange on the intake pipe.Main valve plug, coupling sleeve and main valve clack constitute spool by being welded into one, and main valve plug is provided with annular chamber near valve body one side, and main valve plug is provided with damping hole, and this damping hole communicates with annular chamber.Main valve seat is provided with water outlet, and main valve clack forms sealing pair with the conical surface and main valve seat, perforate in the middle of the main valve clack.Unloader lever is installed in the spool, and an end of unloader lever and piston rod are by being threaded, and unloader lever is provided with radial hole.
The utility model produces pressure difference by unloader lever at the upper/lower terminal of spool, the power of open valve promptly is this pressure reduction, outer power just promotes unloader lever, make it with respect to valve core movement, allow between top main valve plug that radial port in the unloader lever enters spool and the main valve lid in the cavity and the formation pressure reduction upper and lower to spool, and then reduce to drive power, and make the utility model lifting force when opening and closing greatly reduce, solved in the open air or the difficulty of stop valve is used in the place that is difficult to switch on.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Parts label in the accompanying drawing is: 1 is main valve seat; 2 is main valve clack; 3 is coupling sleeve; 4 is unloader lever; 5 is main valve plug; 6 is valve flange; 7 are the main valve lid; 8 is piston; 9 is cylinder block; 10 is valve body; 11 is piston rod; 12 is cavity between main valve plug and the main valve lid; 13 is damping hole; 14 is annular chamber; 15 is cavity between main valve plug and the main valve seat; 16 is intake pipe; 17 is flange.
Embodiment:
Below in conjunction with embodiment the utility model is described in further detail.
See Fig. 1, a kind of air pressure drives stop valve, comprises driving mechanism, main valve, and wherein driving mechanism comprises: cylinder block 9, piston rod 11, piston 8; Main valve comprises: valve body 10, main valve plug 5, main valve clack 2, coupling sleeve 3, main valve lid 7, unloader lever 4, intake pipe 16, main valve seat 1.Cylinder block 9 in the driving mechanism is the hollow circular cylinder of epimere sealing, and its lower end is covered 7 affixed by bolt and main valve, and main valve covers 7 and is connected with valve flange 6 usefulness bolts.Piston 8 is housed in the cylinder block 9, is provided with seal ring between piston 8 and cylinder block 7 inwalls.One end of piston rod 11 is connected by the card key with piston 8, and the other end of piston rod 11 passes the inner chamber that main valve lid 7 extend into valve body 10.One side of valve body 10 is equipped with intake pipe 16, and mounting flange 17 on the intake pipe 16.Main valve plug 5, coupling sleeve 3 and main valve clack 2 constitute spool by being welded into one, and main valve plug 5 is provided with annular chamber 14 near valve body 10 1 sides, and main valve plug 5 is provided with damping hole 13, and this damping hole 13 communicates with annular chamber 14.Main valve seat 1 is provided with water outlet, and main valve clack 2 forms sealing pair, perforate in the middle of the main valve clack 2 with the conical surface and main valve seat 1.Unloader lever 4 is installed in the spool, and an end of unloader lever 4 and piston rod 11 are by being threaded, and unloader lever 4 is provided with radial hole.
Schematic representation when Fig. 1 is in closed condition for the utility model.When desire is opened the utility model, at first move on cylinder block 9 inner carriers 8, unloader lever 4 is with respect to moving on the coupling sleeve 3 simultaneously, when the radial hole on the unloader lever 4 moves between main valve plug and the main valve lid cavity 12, medium between main valve plug and the main valve lid in the cavity 12 flows to water outlet of the present utility model downwards by radial hole on the unloader lever 4, the pressure medium of cavity 12 reduces between main valve plug and the main valve lid at this moment, the medium of cavity 15 flows to cavity 12 between main valve plug and the main valve lid by damping hole 13 by cavity 15 between main valve plug and the main valve seat between main valve plug and the main valve seat, this moment is at the pressure reduction of generation up and down of main valve plug 5, main valve plug 5 moves under the effect of this pressure reduction, and the utility model is opened.Pressure medium in the annular chamber 14 in the utility model opening procedure in the main valve plug 5 almost remains unchanged, and has so just significantly reduced the impact to piston rod 11 and valve body 10, thereby has reduced the frictional force when promoting.
When the utility model is desired to close, cylinder piston 8 moves down, the radial hole of unloader lever 4 enters in the coupling sleeve 3,5 times surface pressures of main valve plug this moment are greater than last surface pressure, in the damping hole 13 media flow is arranged, when pressure at two ends equated about in the of 5, flowing stopped until main valve plug, and it is zero that main valve plug 5 integral body are subjected to that the pressure medium effect makes a concerted effort.Piston rod 8 closes the utility model by the small power that unloader lever 4 acts on main valve clack 2.
Claims (1)
1. air pressure drives stop valve, comprises driving mechanism, main valve, and wherein driving mechanism comprises: cylinder block, piston rod, piston; Main valve comprises: valve body, main valve plug, main valve clack, coupling sleeve, main valve lid, unloader lever, intake pipe, main valve seat; It is characterized in that: the cylinder block in the driving mechanism is the hollow circular cylinder of epimere sealing, and its lower end is affixed by bolt and main valve lid, and the main valve lid is connected with bolt with valve flange; Piston is housed in the cylinder block, is provided with seal ring between piston and cylinder block inwall; One end of piston rod is connected by the card key with piston, and the other end of piston rod passes the inner chamber that the main valve lid extend into valve body; One side of valve body is equipped with intake pipe, mounting flange on the intake pipe; Main valve plug, coupling sleeve and main valve clack constitute spool by being welded into one, and main valve plug is provided with annular chamber near valve body one side, and main valve plug is provided with damping hole, and this damping hole communicates with annular chamber; Main valve seat is provided with water outlet, and main valve clack forms sealing pair with the conical surface and main valve seat, perforate in the middle of the main valve clack; Unloader lever is installed in the spool, and an end of unloader lever and piston rod are by being threaded, and unloader lever is provided with radial hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202374463U CN201747935U (en) | 2010-06-25 | 2010-06-25 | Gas-drive stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202374463U CN201747935U (en) | 2010-06-25 | 2010-06-25 | Gas-drive stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747935U true CN201747935U (en) | 2011-02-16 |
Family
ID=43582613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202374463U Expired - Fee Related CN201747935U (en) | 2010-06-25 | 2010-06-25 | Gas-drive stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747935U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588661A (en) * | 2012-02-17 | 2012-07-18 | 上海狮迈科技有限公司 | Bidirectional pneumatic switch valve |
| CN103807489A (en) * | 2014-01-15 | 2014-05-21 | 同济大学 | Gas-liquid linkage fast-moving cylinder |
| CN109538773A (en) * | 2018-12-13 | 2019-03-29 | 西安航天动力研究所 | A kind of high pressure pilot-operated type latching valve |
| CN113864272A (en) * | 2021-10-18 | 2021-12-31 | 山东泰丰智能控制股份有限公司 | Proportional dynamic pre-charging valve |
-
2010
- 2010-06-25 CN CN2010202374463U patent/CN201747935U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588661A (en) * | 2012-02-17 | 2012-07-18 | 上海狮迈科技有限公司 | Bidirectional pneumatic switch valve |
| CN102588661B (en) * | 2012-02-17 | 2014-03-12 | 上海狮迈科技有限公司 | Bidirectional pneumatic switch valve |
| CN103807489A (en) * | 2014-01-15 | 2014-05-21 | 同济大学 | Gas-liquid linkage fast-moving cylinder |
| CN103807489B (en) * | 2014-01-15 | 2016-03-02 | 同济大学 | A kind of gas-liquid linked quick start cylinder |
| CN109538773A (en) * | 2018-12-13 | 2019-03-29 | 西安航天动力研究所 | A kind of high pressure pilot-operated type latching valve |
| CN113864272A (en) * | 2021-10-18 | 2021-12-31 | 山东泰丰智能控制股份有限公司 | Proportional dynamic pre-charging valve |
| CN113864272B (en) * | 2021-10-18 | 2024-02-27 | 山东泰丰智能控制股份有限公司 | Proportional dynamic prefill valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201747935U (en) | Gas-drive stop valve | |
| CN204226809U (en) | A kind of stop valve structure | |
| CN202392124U (en) | Extra-high pressure relief valve | |
| CN203297681U (en) | Adjustable slow-closure check valve | |
| CN203363202U (en) | Piston type stop valve | |
| CN203297708U (en) | Bottom-in bottom-out magnetic type delayed flush valve element | |
| CN201159301Y (en) | Leading control hydraulic valve | |
| CN202674331U (en) | Pressurizing stop valve | |
| CN204533620U (en) | black water regulating valve | |
| CN201306513Y (en) | Composite total-pressure high-speed air exhaust valve | |
| CN103899805A (en) | Micro-force switch valve with backflow stopping function | |
| CN203176506U (en) | Manual operation and hydraulic pressure combined normally-open valve | |
| CN203686268U (en) | Self-flushing damping and abrasion-resistant screwing type check valve | |
| CN103388692B (en) | Gas pipeline safety check | |
| CN205937915U (en) | Plastic tubing stop valve | |
| CN206513903U (en) | A kind of high-pressure fluid check valve | |
| CN201779311U (en) | Antifreezing valve | |
| CN202852087U (en) | Silent type check valve | |
| CN209671624U (en) | A kind of New Large Caliber pneumatic operated valve | |
| CN203500643U (en) | Gate valve capable of preventing water hammers | |
| CN203784387U (en) | Micro-force switch valve with stop function | |
| CN201014135Y (en) | Non-stop well pressured plugging device | |
| CN107806522B (en) | Steam extraction type quick-closing check valve and working method thereof | |
| CN202001706U (en) | Solar anti-freezing electromagnetic valve | |
| CN201513569U (en) | Large-diameter normal open hydraulic control stop valve |
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: 20110216 Termination date: 20110625 |