CN201934681U - Pressure regulation stop valve - Google Patents
Pressure regulation stop valve Download PDFInfo
- Publication number
- CN201934681U CN201934681U CN201120068340XU CN201120068340U CN201934681U CN 201934681 U CN201934681 U CN 201934681U CN 201120068340X U CN201120068340X U CN 201120068340XU CN 201120068340 U CN201120068340 U CN 201120068340U CN 201934681 U CN201934681 U CN 201934681U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- pressure regulation
- stop 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
Images
Abstract
The utility model relates to a pressure regulation stop valve. Mainly, the problems that the existing stop valve has a poor sealing performance and cannot be used for regulating pressure and a valve seat cannot be replaced after being damaged. The pressure regulation stop valve is characterized in that the lower end of a valve rod (4) is provided with a center hole; a spring (6) and a valve core (3) are arranged in the center hole of the valve rod (4) sequentially; the valve core (3) and the valve rod (4) can slide relatively; and the lower end face of the valve core (3) is a sphere surface. The pressure regulation stop valve has a good sealing performance and can be used for regulating the pressure. Meanwhile, the valve seat can be replaced. The pressure regulation stop valve has a long service life.
Description
Technical field
The utility model relates to a kind of stop valve, is specifically related to a kind of pressure regulation stop valve.
Background technique
Stop valve is most popular a kind of valve in the every profession and trade, existing stop valve is mainly by valve body, valve seat, spool, valve rod and valve gap, valve rod runs through valve gap and is threaded with valve gap, valve gap is connected with valve body, spool matches with valve seat, the end of spool is adopted conical surface to compress mutually with valve seat and is sealed, mainly there is following defective in the stop valve of this structure: 1, owing to there is error when processing or installation, the center of spool can not be overlapped fully with the center of valve seat, produce the gap to making between spool and the valve seat, cause leakage, sealing is poor; 2, between spool and the valve rod for being rigidly connected, do not have the pressure regulatory function.3, valve seat and valve body are structure as a whole, and can not repair or change behind the sealing surface wear of valve seat.
The model utility content
For overcome existing existing stop valve sealing poor, can not carry out that pressure is regulated and valve seat damage after the deficiency that can not change, the utility model provides a kind of pressure regulation stop valve, and this pressure regulation stop valve good seal performance can be carried out pressure and be regulated, valve seat can be changed long service life simultaneously.
The technical solution of the utility model is: this pressure regulation stop valve comprises valve body, valve seat, spool, valve rod and valve gap, valve rod runs through valve gap and is threaded with valve gap, valve gap is connected with valve body, the lower end of valve rod is provided with center hole, be equipped with spring and spool in the center hole of described valve rod successively, can slide relative between spool and the valve rod, the lower end surface of spool is the ball face.
Described valve seat is embedded in the valve body, is provided with seal ring between valve seat and the valve body.
The utlity model has following beneficial effect: owing to take such scheme, rotary valve rod can Regulation spring elastic force, the pressure of medium need overcome the elastic force of spring just can push spool open, has pressure controlled function, when being compressed into spool, spring contacts fully, then valve closing with valve seat.Because the sealing surface on the spool is a sphere, spool has the self contering function, and processing and the deviation of installing can not make between spool and the valve seat and produce the gap, during valve closing, can keep all the time contacting good sealing effect closely between spool and the valve seat.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
1-valve body among the figure, 2-valve seat, 3-spool, 4-valve rod, 5-valve gap, 6-spring, 7-seal ring.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this pressure regulation stop valve comprises valve body 1, valve seat 2, spool 3, valve rod 4 and valve gap 5, valve rod 4 runs through valve gap 5 and is threaded with valve gap 5, valve gap 5 is connected with valve body 1, the lower end of valve rod 4 is provided with center hole, is equipped with spring 6 and spool 3 in the center hole of described valve rod 4 successively, can slide relative between spool 3 and the valve rod 4, spool 3 adopts at interval with valve rod 4 and cooperates, and the lower end surface of spool 3 is the ball face.Rotary valve rod 4 can Regulation spring 6 elastic force, the pressure of medium need overcome the elastic force of spring 6 just can push spool 3 open, has pressure controlled function, contacts fully with valve seat 2 when spring 6 is compressed into spool 3, then valve closing.Because the sealing surface on the spool 3 is a sphere, spool 3 has the self contering function, and processing and the deviation of installing can not make between spool 3 and the valve seat 2 and produce the gap, during valve closing, can keep all the time contacting good sealing effect closely between spool 3 and the valve seat 2.
By shown in Figure 1, described valve seat 2 is embedded in the valve body 1, is provided with seal ring 7 between valve seat 2 and the valve body 1.After valve seat 2 wearing and tearing, can disassemble and change long service life.
Claims (2)
1. pressure regulation stop valve, comprise valve body (1), valve seat (2), spool (3), valve rod (4) and valve gap (5), valve rod (4) runs through valve gap (5) and is threaded with valve gap (5), valve gap (5) is connected with valve body (1), it is characterized in that: the lower end of valve rod (4) is provided with center hole, be equipped with spring (6) and spool (3) in the center hole of described valve rod (4) successively, can slide relative between spool (3) and the valve rod (4), the lower end surface of spool (3) is the ball face.
2. pressure regulation stop valve according to claim 1 is characterized in that: described valve seat (2) is embedded in the valve body (1), is provided with seal ring (7) between valve seat (2) and the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120068340XU CN201934681U (en) | 2011-03-15 | 2011-03-15 | Pressure regulation stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120068340XU CN201934681U (en) | 2011-03-15 | 2011-03-15 | Pressure regulation stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934681U true CN201934681U (en) | 2011-08-17 |
Family
ID=44446200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120068340XU Expired - Fee Related CN201934681U (en) | 2011-03-15 | 2011-03-15 | Pressure regulation stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934681U (en) |
-
2011
- 2011-03-15 CN CN201120068340XU patent/CN201934681U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204942602U (en) | Low wearing and tearing ball valve | |
| CN202001646U (en) | Cage type regulating valve with single seat | |
| CN201934681U (en) | Pressure regulation stop valve | |
| CN204985935U (en) | Gerotor type electromagnetism three -way valve | |
| CN202203462U (en) | Conical ultrahigh-pressure self-sealing system | |
| CN202402681U (en) | High temperature and high pressure ball valve | |
| CN202031538U (en) | Unloading high-pressure anti-explosion solenoid valve | |
| CN201992105U (en) | Welding type sandwich valve | |
| CN202252316U (en) | Sealing structure for valve rod | |
| CN204756049U (en) | Take linear sealing safety shut -off valve of direction formula | |
| CN201764040U (en) | Stop check valve | |
| CN202280864U (en) | Ball valve | |
| CN204985822U (en) | Resilient -sealed ball valve | |
| CN203189780U (en) | High-pressure self-sealing spherical valve | |
| CN203743449U (en) | Demountable flange butterfly valve | |
| CN201875161U (en) | Pilot valve of reducing valve | |
| CN201763976U (en) | Cut-off valve | |
| CN203963125U (en) | There is the three-way reversing spherical valve of the hard seal ring of detachable metal | |
| CN201858371U (en) | Butterfly valve | |
| CN203743473U (en) | Spring reset dual-acting-force parallel gate valve | |
| CN201434091Y (en) | Self-power regulating valve | |
| CN203296847U (en) | Novel diesel engine exhaust valve | |
| CN202056321U (en) | Triple-eccentric butterfly valve | |
| CN202510732U (en) | Pressure regulating valve | |
| CN201902576U (en) | Inflatable butterfly valve |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20180315 |