CN201944295U - Throttling stop valve - Google Patents
Throttling stop valve Download PDFInfo
- Publication number
- CN201944295U CN201944295U CN201120067964XU CN201120067964U CN201944295U CN 201944295 U CN201944295 U CN 201944295U CN 201120067964X U CN201120067964X U CN 201120067964XU CN 201120067964 U CN201120067964 U CN 201120067964U CN 201944295 U CN201944295 U CN 201944295U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- throttling stop
- link
- 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
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Abstract
The utility model relates to a throttling stop valve which mainly solves the problem of poor sealing performance between a valve core and a valve seat of an existing valve. The throttling stop valve is characterized in that a valve core (3) is connected with a valve rod (4) through a connecting piece (6), the upper end surface and the lower end surface of the valve core (3) are both spherical surfaces, gaps are respectively left among the valve core (3), the valve rod (4) and the connecting piece (6), and the valve core (3) can move and deflect along the axial direction of the connecting piece (6) freely in a set range. The throttling stop valve has the characteristics of good sealing effect, difficult drop of the valve core, and long service life.
Description
Technical field
The utility model relates to a kind of stop valve, is specifically related to a kind of throttling 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, original spool adopts vertical mounting type with attachment screw between the valve rod, is subjected to structural limitations, and screw sizes is very little, generally is no more than 8mm.Screw because of corrosion and vibration damage, causes spool to come off, valve invalidation easily.
The model utility content
In order to overcome the deficiency of sealing difference between existing stop valve spool and the valve seat, the utility model provides a kind of throttling stop valve, and this throttling stop valve has the characteristics of good sealing effect, spool difficult drop-off and long service life.
The technical solution of the utility model is: this throttling 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, spool links to each other with valve rod by link, the upper and lower end face of spool is the ball face, all gapped between spool and valve rod and the link, spool can freely in the scope of setting move axially and deflection along link.
Described link is a hexagon socket head cap screw, in the tapped hole in the valve rod screw retention spare is installed.
Described screw retention spare is a resilient pad.
The utlity model has following beneficial effect: owing to take such scheme, spool be two spheric structures, can utilize sphere self contering function to guarantee between spool and the valve seat and whenever spool can both contact well with sealing surface between the valve rod, seals tightly.Characteristics with good sealing effect, spool difficult drop-off and long service life.
Description of drawings
Accompanying drawing 1 is a structure sectional view of the present utility model.
1-valve body among the figure, 2-valve seat, 3-spool, 4-valve rod, 5-valve gap, 6-link, 7-screw retention spare.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of throttling 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, and spool 3 links to each other with valve rod 4 by link 6, and the upper and lower end face of spool 3 is the ball face, all gapped between spool 3 and valve rod 4 and the link 6, spool 3 can freely in the scope of setting move axially and deflection along link 6.Because spool 3 be upper and lower pair of spheric structure, can utilize sphere self contering function to guarantee between spool 3 and the valve seat 2 and whenever spool 3 can both contact well with sealing surface between the valve rod 4, seal tightly.Compare good sealing effect with background technique.
Described link 6 is a hexagon socket head cap screw, in the tapped hole in the valve rod 4 screw retention spare 7 is installed.Compact structure can make bigger that the size of link 6 makes, and better join strength is arranged, and can not return the damage of link 6 and spool 3 is come off, long service life.
Described screw retention spare 7 is a resilient pad.Screw retention spare 7 also can adopt spring or other anti-release member.
Claims (3)
1. throttling 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: spool (3) links to each other with valve rod (4) by link (6), the upper and lower end face of spool (3) is the ball face, all gapped between spool (3) and valve rod (4) and the link (6), spool (3) can freely in the scope of setting move axially and deflection along link (6).
2. throttling stop valve according to claim 1 is characterized in that: described link (6) is a hexagon socket head cap screw, in the tapped hole in the valve rod (4) screw retention spare (7) is installed.
3. throttling stop valve according to claim 2 is characterized in that: described screw retention spare (7) is a resilient pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120067964XU CN201944295U (en) | 2011-03-15 | 2011-03-15 | Throttling stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120067964XU CN201944295U (en) | 2011-03-15 | 2011-03-15 | Throttling stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944295U true CN201944295U (en) | 2011-08-24 |
Family
ID=44471638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120067964XU Expired - Fee Related CN201944295U (en) | 2011-03-15 | 2011-03-15 | Throttling stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147018A (en) * | 2011-03-15 | 2011-08-10 | 浙东高中压阀门有限公司 | Throttle and cut-off valve |
| CN113404890A (en) * | 2021-07-06 | 2021-09-17 | 四川泰诺流体控制技术有限公司 | Hydraulic switch mechanism and high-pressure three-way valve |
-
2011
- 2011-03-15 CN CN201120067964XU patent/CN201944295U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147018A (en) * | 2011-03-15 | 2011-08-10 | 浙东高中压阀门有限公司 | Throttle and cut-off valve |
| CN113404890A (en) * | 2021-07-06 | 2021-09-17 | 四川泰诺流体控制技术有限公司 | Hydraulic switch mechanism and high-pressure three-way 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: 20110824 Termination date: 20180315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |