CN205956404U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN205956404U CN205956404U CN201620992755.9U CN201620992755U CN205956404U CN 205956404 U CN205956404 U CN 205956404U CN 201620992755 U CN201620992755 U CN 201620992755U CN 205956404 U CN205956404 U CN 205956404U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- stop valve
- stop
- valve body
- 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.)
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- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The utility model provides a stop valve, includes valve body, valve rod, disk seat, filler, case, delivery port and water inlet, the valve rod is from the inner chamber of putting into the valve body, and the lower extreme of this valve rod is connected with spherical structure's case, in the ball shape cavity of valve rod bottom is located to this spherical structure case with freely rolling, this ball shape top of cavity be with spheroid assorted arc recess. The utility model provides a stop valve, it does not produce the sealing surface when making liquid medium pass through and assaults through setting up buffer, has reduced wearing and tearing, has improved stop valve's stability and wear resistance.
Description
Technical field
This utility model is related to a kind of stop valve.
Background technology
Stop valve, also known as pipe valve valve, belongs to forced seal formula valve, so in valve closing it is necessary to apply pressure to flap
Power, is not leaked with forced seal face.When entering valve below medium is by flap, the resistance overcoming required for operating physical force, is valve
The frictional force of bar and filler and thrust produced by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod
Diameter big, the fault of valve rod bending otherwise can occur.It is divided into three kinds by connected mode：Flange connection, screwed connection, welding
Connect.After self-packing valve occurs, the medium flow direction of stop valve just changes by entrance valve pocket above flap, at this moment in medium pressure
Under power effect, the power of closing valve is little, and the power of valve opening door is big, and the diameter of valve rod can correspondingly reduce.Meanwhile, act in medium
Under, the valve of this form is also tighter.China's valve " three change to " once specified, the flow direction of stop valve, without exception using from upper
Under.When stop valve is opened, the Lift of flap, be nominal diameter 25%～30% when. flow has reached maximum, represents valve
Reach fully open position.So the fully open position of stop valve, should be determined by the stroke of flap.
Stop valve（stop valve,Globe Valve）Opening and closing element be stopper flap, sealing is in above plane or sea
The conical surface, flap is for linear motion along the centrage of valve seat.The forms of motion of valve rod,（Adopted name：Dark bar）, also have lifting rotation
Rod-type can be used for controlling empty gas and water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium etc. each
The flowing of type fluid.Therefore, such stop valve valve that dams is highly suitable as cutting off or adjusting and throttle
With.Due to the valve rod of such valve, to be turned on and off stroke relatively short, and has very reliable cutting function, and due to
The change of valve seat port and the stroke direct proportionality of flap, are very suitable for the regulation to flow.
Stop valve in use, due to producing larger pressure when medium flows through, produces larger rushing to sealing surface
Hit, the sealing surface of valve is caused to wear and tear, affects sealing effectiveness.
Content of the invention
This utility model provides a kind of stop valve, solves the problems referred to above, and it passes through to arrange buffer unit, so that liquid is situated between
Impact is not produced to sealing surfaces when matter is passed through, decrease abrasion, improve stability and the anti-wear performance of stop valve.
The technical solution of the utility model is as follows：
A kind of stop valve is it is characterised in that include valve body, valve rod, valve seat, filler, valve element, outlet and water inlet；
From the inner chamber inserting valve body, the lower end of this valve rod is connected with the valve element of spherical structure to described valve rod, this spherical junctions
Freely rollably in the spheroidal cavity of valve rod bottom, this spheroidal cavity top end is the arc matching with spheroid to structure valve element
Connected in star.
Preferably, described water inlet is placed in valve seat positioned at valve body bottom.
Preferably, on valve body and one end constitutes stopper protrusion to described filler.
Beneficial effect：Work as valve opening, because fluid makes spheroid rotate to ball impact, even if the kinetic energy of this fluid turns
Turn to the kinetic energy of spheroid transhipment and so that energy is discharged, such medium decreases the abrasion to sealing surface to close.
Brief description
Fig. 1 is this utility model overall structure diagram.
Specific embodiment
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of stop valve, including valve body 2, valve rod 4, valve seat 3, filler 10, valve element 5, outlet 8 and enter water
Mouth 9；
From the inner chamber inserting valve body, the lower end of this valve rod is connected with the valve element 5 of spherical structure to described valve rod 4, and this is spherical
Freely rollably in the spheroidal cavity 6 of valve rod bottom, this spheroidal cavity top end is to match with spheroid to structure valve core 5
Arc groove 7.
In the present embodiment, described water inlet 9 is placed in valve seat 3 positioned at valve body 2 bottom.
In the present embodiment, on valve body and one end constitutes stopper protrusion 11 to described filler.
Above description is with reference to further illustrating that specific embodiment and accompanying drawing are done to this utility model.But, this
Utility model obviously can be implemented different from other methods that this describes with multiple, those skilled in the art can without prejudice to
Carry out promoting, deduce according to actually used situation in the case of this utility model content, therefore, the content of above-mentioned specific embodiment
The protection domain of this utility model determination should not limited.
Claims (3)
1. a kind of stop valve is it is characterised in that include valve body, valve rod, valve seat, filler, valve element outlet and water inlet；
From the inner chamber inserting valve body, the lower end of this valve rod is connected with the valve element of spherical structure to described valve rod, this spherical structure valve
Freely rollably in the spheroidal cavity of valve rod bottom, this spheroidal cavity top end is that the arc matching with spheroid is recessed to core
Groove.
2. a kind of stop valve according to claim 1 is it is characterised in that described water inlet is placed in valve seat positioned at valve body bottom
Interior.
3. a kind of stop valve according to claim 1 it is characterised in that described filler on valve body and one end constitute limit
Position protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992755.9U CN205956404U (en) | 2016-08-30 | 2016-08-30 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992755.9U CN205956404U (en) | 2016-08-30 | 2016-08-30 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205956404U true CN205956404U (en) | 2017-02-15 |
Family
ID=57978811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620992755.9U Active CN205956404U (en) | 2016-08-30 | 2016-08-30 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205956404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122488A (en) * | 2016-08-30 | 2016-11-16 | 苏州科迪流体控制设备有限公司 | A kind of stop valve |
-
2016
- 2016-08-30 CN CN201620992755.9U patent/CN205956404U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122488A (en) * | 2016-08-30 | 2016-11-16 | 苏州科迪流体控制设备有限公司 | A kind of stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |