CN206320319U - Cylindrical stop valve - Google Patents
Cylindrical stop valve Download PDFInfo
- Publication number
- CN206320319U CN206320319U CN201621304834.2U CN201621304834U CN206320319U CN 206320319 U CN206320319 U CN 206320319U CN 201621304834 U CN201621304834 U CN 201621304834U CN 206320319 U CN206320319 U CN 206320319U
- Authority
- CN
- China
- Prior art keywords
- valve body
- flap
- valve
- cylindrical
- upper valve
- 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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- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
A kind of cylindrical stop valve, including hollow cylindrical valve body, upper valve body is vertically connected with the valve body, lower valve body, the upper valve body, lower valve body is hollow cylindrical and central axes, upper valve body, lower valve body inwall is provided with internal thread, it is placed in externally threaded cylindrical flap in upper valve body, flap length is more than valve body diameter of section, flap upper end is fixedly connected with valve rod, upper valve body upper end sets bonnet, valve rod through bonnet and is connected with handle in its end, provided with the passage connected with bottom and side wall in flap, lower valve body lower end sets bottom flange, lower valve body lower end is sealed by bottom flange.Pass through the upper valve body and lower valve body that setting central axis overlaps on valve body, upper valve body, lower valve body inwall set internal thread, flap outer wall sets external screw thread, so that when it is straight line to keep valve body fluid passage by valve seal, resistance will not be produced, the impact wear to valve interior wall is reduced, the service life of stop valve is extended.
Description
Technical field
The utility model is related to valve body technical field, and in particular to a kind of cylindrical stop valve.
Background technology
Stop valve is also known as pipe valve valve, belongs to forced seal formula valve, so when valve is closed, it is necessary to applies to flap and presses
Power, is not leaked with forced seal face.When medium below flap by entering valve, the resistance overcome required for operating physical force, is valve
The frictional force of bar and filler with as the 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 it is big, otherwise can occur the failure of valve rod bending.It is divided into three kinds by connected mode：Flange connection, screwed connection, welding
Connection.After the valve of self sealss occurs, the medium flow direction of stop valve just changes by entering valve pocket above flap, at this moment in medium pressure
Under power effect, the power of closing valve is small, and the power of valve opening door is big, and the diameter of valve rod can be reduced correspondingly.Meanwhile, in medium effect
Under, the valve of this form is also tighter.China's valve " three change to " once provided, the flow direction of stop valve, without exception using from upper
Under.When stop valve is opened, the Lift of flap, flows have reached maximum when being the 25%~30% of nominal diameter, represent valve
Door reaches fully open position.So the fully open position of stop valve, should be determined by the stroke of flap.
Current trend is bending in existing stop valve body, and this can produce larger fluid resistance, be unfavorable for fluid stream
It is dynamic, while for a long time abrasion can be produced to valve body, cause sealing effectiveness to be deteriorated, disclosure risk may be produced.
Utility model content
Technical problem to be solved in the utility model is to overcome existing technological deficiency to end there is provided a kind of cylinder
Valve.
Technical problem to be solved in the utility model is realized using following technical scheme：
A kind of cylindrical stop valve, including hollow cylindrical valve body, valve body one end are entrance point, and relative with entrance point is
Mouth end, upper valve body, lower valve body are vertically connected with the valve body, and the upper valve body, lower valve body are hollow cylindrical and central shaft
Line is overlapped, and upper valve body, lower valve body and valve body shape, and upper valve body, lower valve body inwall are provided with internal thread, with externally threaded
Cylindrical flap is placed in upper valve body, and flap length is more than valve body diameter of section, and flap upper end is fixedly connected with valve rod, upper valve body
Upper end sets bonnet, and valve rod is through bonnet and handle is connected with its end, is provided with what is connected with bottom and side wall in flap
Passage, lower valve body lower end sets bottom flange, is sealed lower valve body lower end by bottom flange.
The upper valve body, lower valve body section radius are equal with valve body section radius.
Sealing gasket is set on the bottom flange, and the upper valve body upper surface sets in annular groove, the annular groove and put
Put sealing ring.
The beneficial effects of the utility model are：Pass through the upper valve body and lower valve that setting central axis overlaps on valve body
Body, upper valve body, lower valve body inwall set internal thread, and flap outer wall sets external screw thread, so as to be in holding valve body fluid passage
By valve seal during straight line, resistance will not be produced, the impact wear to valve interior wall is reduced, extends the use longevity of stop valve
Life.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As shown in figure 1, a kind of cylindrical stop valve, including hollow cylindrical valve body 1, the one end of valve body 1 is entrance point 2, with
Relative entrance point 2 is the port of export 3, and upper valve body 4, lower valve body 10 are vertically connected with valve body 1, and upper valve body 4, lower valve body 10 are hollow
Cylinder and central axes, upper valve body 4, lower valve body 10 can be integrally formed with valve body 1, upper valve body 4, the section of lower valve body 10
Radius is equal with the section radius of valve body 1, and upper valve body 4, the inwall of lower valve body 10 are provided with internal thread, with externally threaded cylinder valve
Valve 5 is placed in upper valve body 4, and the length of flap 5 is more than the diameter of section of valve body 1, and the upper end of flap 5 is fixedly connected with valve rod 6, upper valve body 4
Upper end sets bonnet, 12, and valve rod 6 is through bonnet 12 and handle 8 is connected with its end, is provided with and bottom and side wall in flap 5
The passage 7 of connection, the lower end of lower valve body 10 sets bottom flange 9, is sealed the lower end of lower valve body 10 by bottom flange 9, is set on bottom flange 9
Put and placed on sealing gasket 13, upper valve body 4 in setting annular groove 11, annular groove 11 sealing ring by bonnet, 12 and upper valve body 4
Sealing.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (4)
1. a kind of cylindrical stop valve, including hollow cylindrical valve body, valve body one end are entrance point, relative with entrance point for outlet
End, it is characterised in that：Upper valve body, lower valve body are vertically connected with the valve body, the upper valve body, lower valve body are hollow cylindrical
And central axes, upper valve body, lower valve body and valve body shaping, upper valve body, lower valve body inwall are provided with internal thread, carried
Externally threaded cylindrical flap is placed in upper valve body, and flap length is more than valve body diameter of section, and flap upper end is fixed with valve rod to be connected
Connect, upper valve body upper end sets bonnet, and valve rod is through bonnet and handle is connected with its end, is provided with and bottom and side in flap
The passage of wall connection, lower valve body lower end sets bottom flange.
2. cylindrical stop valve according to claim 1, it is characterised in that：The upper valve body, lower valve body section radius with
Valve body section radius are equal.
3. cylindrical stop valve according to claim 1 or 2, it is characterised in that：Sealing gasket is set on the bottom flange.
4. cylindrical stop valve according to claim 1 or 2, it is characterised in that：The upper valve body upper surface sets annular
Sealing ring is placed in groove, the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304834.2U CN206320319U (en) | 2016-11-30 | 2016-11-30 | Cylindrical stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304834.2U CN206320319U (en) | 2016-11-30 | 2016-11-30 | Cylindrical stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320319U true CN206320319U (en) | 2017-07-11 |
Family
ID=59265616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621304834.2U Expired - Fee Related CN206320319U (en) | 2016-11-30 | 2016-11-30 | Cylindrical stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320319U (en) |
-
2016
- 2016-11-30 CN CN201621304834.2U patent/CN206320319U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20201130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |