CN202629099U - Quick block valve - Google Patents

Quick block valve Download PDF

Info

Publication number
CN202629099U
CN202629099U CN 201220334287 CN201220334287U CN202629099U CN 202629099 U CN202629099 U CN 202629099U CN 201220334287 CN201220334287 CN 201220334287 CN 201220334287 U CN201220334287 U CN 201220334287U CN 202629099 U CN202629099 U CN 202629099U
Authority
CN
China
Prior art keywords
valve
stuffing box
piston
spring
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.)
Active
Application number
CN 201220334287
Other languages
Chinese (zh)
Inventor
张逸芳
陆平
王建新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI SHENTONG ENTERPRISE DEVELOPMENT Co Ltd
Original Assignee
SHANGHAI SHENTONG ENTERPRISE DEVELOPMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI SHENTONG ENTERPRISE DEVELOPMENT Co Ltd filed Critical SHANGHAI SHENTONG ENTERPRISE DEVELOPMENT Co Ltd
Priority to CN 201220334287 priority Critical patent/CN202629099U/en
Application granted granted Critical
Publication of CN202629099U publication Critical patent/CN202629099U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a quick block valve which comprises a valve body, a valve rod, a valve clack and a stuffing box, wherein the valve rod passes through the stuffing box and extends into the valve body; the stuffing box is fixedly connected with the valve body through a gland; stuffing is placed between the stuffing box and the valve rod and fixed and sealed through a stuff gland; the front end of the valve rod is fixedly connected with the valve clack; the stuffing box is fixedly connected with a cylinder body, and the cylinder body is divided into an upper cavity and a lower cavity by a piston; the other end of the valve rod is fixedly connected with the piston; a spring is arranged in the upper cavity, and the lower cavity is connected with a power gas source through a valve open gas inlet; and both ends of the spring are respectively and fixedly connected with the piston and a cylinder cover. The quick block valve has the advantages that in a working state, the piston is lifted up under the pressure of gas by utilizing the power gas source so as to drive the valve clack to be lifted up to open the valve, and meanwhile, the spring is compressed to store energy; and when the power gas source is closed, the valve clack is quickly closed under double actions of backflow medium pressure and the spring to realize a function of quick cut off so as to protect equipment and accessories.

Description

A kind of fast block valve
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of fast block valve.
Background technique
Block valve is to be everlasting to be used for the valve of pilot line medium circulation in the systems such as oil, chemical industry, steam line.Common block valve leans on rotation hand wheel, makes valve rod rising and decline drive flap and moves, and reaches the purpose of valve opening and closing, and required moment is big, and power consumption is big, and reaction velocity is slow, can not realize fast shut-off.
The model utility content
In order to overcome the existing above-mentioned shortcoming of self-powering type safety check, the utility model provides a kind of fast block valve little and that the opening/shutting valve reaction velocity is fast that consumes energy.
It is a kind of fast block valve that the utility model solves the technological scheme that its technical problem adopted, and comprises valve body, valve rod, flap, stuffing box, and valve rod passes stuffing box and stretches in the valve body; Stuffing box is fixedly connected with valve body through gland, and filler is placed between stuffing box and the valve rod, through the Gland fixing seal; The valve rod front end is fixedly connected flap, and stuffing box is fixedly connected with a cylinder body, and cylinder body is divided into epicoele and cavity of resorption by a piston; The valve rod the other end is fixedly connected with piston; Spring is set in the epicoele, and cavity of resorption links to each other with power gas source through opening the valve suction port, and both ends of the spring is fixedly connected with cylinder cap with piston respectively.
Have the keying spiracle on the cylinder cap.
The beneficial effect of the utility model is in working order the time, utilizes power gas source to make piston under the pressure of gas, upwards promote, and upwards promotes thereby drive flap, realizes opening valve, and spring is compressed stored energy simultaneously; When power gas source is closed, flap quick closedown under reflux medium pressure and spring double reaction plus realizes the fast shut-off function, protection equipment and annex.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the present embodiment structural drawing
Among Fig. 1: 1. valve body; 2. flap; 3. valve rod; 4. gland; 5. stuffing box; 6. filler; 7. Gland; 8. piston; 9. spring; 10. cylinder body; 11. cylinder cap; 12. keying spiracle; 13. epicoele; 14. cavity of resorption; 15. open the valve intake interface.
Embodiment
As shown in Figure 1, a kind of fast block valve comprises valve body 1, valve rod 3, flap 2, stuffing box 5, and valve rod 3 passes stuffing box 5 and stretches in the valve body 1; Stuffing box 5 adopts with valve body 1 through gland 4 and is threaded, compact structure, convenient for maintaining maintenance; Filler 6 is placed between stuffing box 5 and the valve rod 1, and through Gland 7 fixing seals, valve rod 3 front ends are fixedly connected flap 2; Stuffing box 5 adopts transition to be threaded with a cylinder body 10, and cylinder body 10 is divided into epicoele 13 and cavity of resorption 14 by a piston 8, and valve rod 3 the other ends are fixedly connected with piston 8; Spring 9 is set in the epicoele 13, and cavity of resorption 14 links to each other with power gas source through opening valve suction port 15, and spring 9 two ends are fixedly connected with cylinder cap 11 with piston 8 respectively; Have on the cylinder cap 11 and open and close spiracle 12, make epicoele 13 pressure stabilitys vacuum phenomenon can not occur.
During work, the source of the gas that turns on the power makes gas get in the cavity of resorption 14, and piston 8 upwards promotes under the active force of gas, drives flap 2 and upwards promotes, and realizes valve opening, and simultaneously, spring 9 is compressed, stored energy; When closing power gas source, flap 2 descends under the double reaction plus of reflux medium pressure and spring 8 fast, and realization valve speed is closed.

Claims (2)

1. a fast block valve comprises valve body, valve rod, flap, stuffing box, and valve rod passes stuffing box and stretches in the valve body; Stuffing box is fixedly connected with valve body through gland, and filler is placed between stuffing box and the valve rod, through the Gland fixing seal; The valve rod front end is fixedly connected flap, and it is characterized in that: said stuffing box is fixedly connected with a cylinder body, and said cylinder body is divided into epicoele and cavity of resorption by a piston; The said valve rod the other end is fixedly connected with piston; In the said epicoele spring is set, said cavity of resorption links to each other with power gas source through opening the valve suction port, and said both ends of the spring is fixedly connected with cylinder cap with piston respectively.
2. a kind of fast block valve according to claim 1 is characterized in that: have the keying spiracle on the said cylinder cap.
CN 201220334287 2012-07-11 2012-07-11 Quick block valve Active CN202629099U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220334287 CN202629099U (en) 2012-07-11 2012-07-11 Quick block valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220334287 CN202629099U (en) 2012-07-11 2012-07-11 Quick block valve

Publications (1)

Publication Number Publication Date
CN202629099U true CN202629099U (en) 2012-12-26

Family

ID=47382304

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220334287 Active CN202629099U (en) 2012-07-11 2012-07-11 Quick block valve

Country Status (1)

Country Link
CN (1) CN202629099U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103322208A (en) * 2013-06-14 2013-09-25 刘工勤 Hydraulically-controlled opening and closing valve
CN103542102A (en) * 2012-07-11 2014-01-29 上海神通企业发展有限公司 Rapid intercepting valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103542102A (en) * 2012-07-11 2014-01-29 上海神通企业发展有限公司 Rapid intercepting valve
CN103322208A (en) * 2013-06-14 2013-09-25 刘工勤 Hydraulically-controlled opening and closing valve

Similar Documents

Publication Publication Date Title
CN202629099U (en) Quick block valve
CN204692595U (en) Industrial refrigeration right-angle type screw down nonreturn valve
CN201747324U (en) Hydraulic actuator for valve
CN201934108U (en) Hydraulic control one-way valve
CN103542102A (en) Rapid intercepting valve
CN204175696U (en) Stepping cylinder
CN202944872U (en) Valve type air seal device
CN202597022U (en) Gas-liquid buffer compensation device for natural gas piston compressor
CN203374898U (en) Knocking-proof type check valve
CN202733095U (en) Balance type high-pressure-difference regulating valve
CN201916143U (en) Hydraulic manual pump
CN202901488U (en) Energy accumulation emergency cut-off valve
CN203297188U (en) Constant pressure oil cylinder
CN202851306U (en) Control valve used for gas compressor
CN202746615U (en) Double eccentric sealing butterfly valve
CN203594797U (en) Telescopic cylinder power-assisted stop valve
CN202834321U (en) Gas tank quick opening valve
CN202520507U (en) Air compressor
CN203394897U (en) Novel oil tank device of hydraulic machine
CN203202310U (en) Built-in type check valve
CN206386547U (en) Balanced type gas control angle pedestal valve
CN203743581U (en) Emergency device for gas source decompression of poppet valve
CN201651369U (en) Flat gate valve capable of being maintained on line
CN206111567U (en) Non return door in screw compressor admission valve
CN101749015B (en) High pressure water hydraulic pressure balanced sealing system of development machine

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant