CN202629099U - Quick block valve - Google Patents
Quick block valve Download PDFInfo
- 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
- fixedly connected
- stuffing box
- piston
- 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.)
- Expired - Fee Related
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Details Of Valves (AREA)
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
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.
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 Expired - Fee Related CN202629099U (en) | 2012-07-11 | 2012-07-11 | Quick block valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629099U (en) |
Cited By (2)
| 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 |
-
2012
- 2012-07-11 CN CN 201220334287 patent/CN202629099U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |