CN202418632U - No-pin internal transmission center through shaft butterfly valve - Google Patents
No-pin internal transmission center through shaft butterfly valve Download PDFInfo
- Publication number
- CN202418632U CN202418632U CN2011205503282U CN201120550328U CN202418632U CN 202418632 U CN202418632 U CN 202418632U CN 2011205503282 U CN2011205503282 U CN 2011205503282U CN 201120550328 U CN201120550328 U CN 201120550328U CN 202418632 U CN202418632 U CN 202418632U
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- China
- Prior art keywords
- valve
- valve rod
- rod
- valve body
- jump ring
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- Expired - Fee Related
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Abstract
The utility model relates to a no-pin internal transmission center through shaft butterfly valve, which includes a valve body and a valve seat; the valve body and the valve seat are assembling units, and the valve seat is directly vulcanized on the valve body; the no-pin internal transmission center through shaft butterfly valve further includes a valve rod and a valve plate; the valve rod penetrates the valve plate, and a square head on the valve rod is matched with a square hole in the valve plate; the valve plate and the valve seat realize full spherical surface fit, and leave a certain magnitude of interference; the lower end of the valve rod is in interference fit with a middle hole of the valve seat; the upper end of the valve rod is connected with the upper part of the valve body; the upper end of the valve rod is further sleeved with a shaft sleeve; a V-shaped seal ring is arranged under the interior of the shaft sleeve; the interference fit of the valve rod and the valve body is realized through the V-shaped seal ring; a first clamp spring, a second clamp spring and a gasket are further arranged above the interior of the shaft sleeve; and the first clamp spring is mounted in a clamp spring groove of the valve rod, the second clamp spring is mounted in a clamp spring groove of the valve body, and the gasket is arranged between the first clamp spring and the second clamp spring and is contacted with the both. Valve leakage points are reduced, the valve safety is improved, and all of parts can be exchanged.
Description
Technical field
The utility model relates to a kind of butterfly valve, relates in particular to the structure of this butterfly valve.
Background technique
Butterfly valve is mainly used in fields such as town water supply, petrochemical industry, desalination of sea water, medical apparatus; Be divided into center line wafer type butterfly valve, center line flange-type butterfly valve, single eccentric-butterfly-valve, double eccentric butterfly valve and three eccentric butterfly valve, so the different fields that utilize of the structure of butterfly valve are also different.Centre-pivoted butterfly valve mainly by: valve body 11, valve seat 12, valve plate 13, valve rod 14, pin 15, seal ring 16 and axle sleeve 17 parts are formed.
As shown in Figure 1, valve plate 13 is connected with valve rod 14 usefulness pins 15, has increased the valve leak point, has reduced the valve seal performance; In a single day pin comes off, and valve rod has the possibility that flies out, and component do not have versatility, can't realize the field replacement component.
Summary of the invention
The utility model technical issues that need to address have provided transmission center axis butterfly valve in a kind of no pin, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:
The utility model comprises: valve body and valve seat; Described valve body and valve seat are assembly parts, and valve seat directly vulcanizes to valve body; Also comprise: valve rod and valve plate; Described valve rod passes valve plate, and the square toes on the described valve rod cooperate with square hole on the valve plate; Described valve plate realizes that with valve seat global face cooperates, and certain magnitude of interference is arranged; The lower end of described valve rod and valve seat mesopore interference fit; The upper end of described valve rod is connected with valve body top; An axle sleeve also is inserted in upper end at described valve rod; V-shaped seal ring of interior positioned beneath at described axle sleeve; Realize the interference fit of valve rod and valve body through described V-shaped seal ring; Above described axle sleeve interior, also comprise: one first jump ring, one second jump ring and a packing ring; Described first jump ring is installed in the jump ring groove of valve rod, and described second jump ring is installed in the jump ring groove of valve body, and described packing ring is between first jump ring and second jump ring and be in contact with it.
Compared with prior art, the beneficial effect of the utility model is: because valve plate is connected with valve rod user falcon, reduce the valve leak point, improve the sealability of valve; Valve rod top installs the anti-device that flies out, the Security that has improved valve additional; Moreover component all can exchange, and the scene is dismounting and replacing component directly.
Description of drawings
Fig. 1 is a butterfly valve structure schematic representation in the existing technology.
Fig. 2 is the utility model structural representation.
Fig. 3 is the blast structural representation of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Visible by Fig. 2, Fig. 3: the utility model comprises: valve body 1 and valve seat 2; Described valve body 1 is an assembly parts with valve seat 2, and valve seat 2 directly vulcanizes to valve body 1; Also comprise: valve rod 3 and valve plate 4; Described valve rod 3 passes valve plate 4, and the square toes on the described valve rod 3 cooperate with square hole on the valve plate 4; Described valve plate 4 realizes that with valve seat 2 global face cooperates, and certain magnitude of interference is arranged; The lower end of described valve rod 3 and valve seat 2 mesopore interference fit; The upper end of described valve rod 3 is connected with valve body 1 top; Also be inserted in an axle sleeve 6 in the upper end of described valve rod 3; V-shaped seal ring 5 of interior positioned beneath at described axle sleeve 6; Realize the interference fit of valve rod 3 and valve body 1 through described V-shaped seal ring 5; Above described axle sleeve 6 interior, also comprise: one first jump ring 7, one second jump ring 9 and a packing ring 8; Described first jump ring 7 is installed in the jump ring groove of valve rod 3, and described second jump ring 9 is installed in the jump ring groove of valve body 1, and described packing ring 8 is between first jump ring 7 and second jump ring 9 and be in contact with it.
Valve body and valve seat are assembly parts in the utility model, and valve seat directly vulcanizes to valve body; The square toes of valve rod cooperate with the valve plate square hole, and the rotation of valve rod drives valve plate like this, realizes the switch motion of valve plate, and transmission in realizing reduces the leak point, has improved sealability; Valve seat realizes that with valve plate global face cooperates, and certain magnitude of interference is arranged, and produce sealing, and moment of torsion is low; Valve rod and valve seat mesopore interference fit realize sealing on first road; V-shaped seal ring and valve rod, valve body interference fit realize sealing on second road, and when the first road seal leakage, V-type circle pressurized and compression increase the magnitude of interference of valve rod, valve body and V-type circle, prevent that effectively medium from leaking; Axle sleeve and valve body 1, valve rod do not have gap, no interference fit, and axle sleeve internal surface high finishingness is little with the friction factor of valve rod, do not influence the moment of torsion of valve switch; First jump ring is installed in the jump ring groove of valve rod, and second jump ring is installed in the jump ring groove of valve body, and packing ring contacts with 2 jump rings; When the stressed upwards play of valve rod, first jump ring and packing ring are limited by second jump ring, can't on scurry; Thereby valve rod can't be flown out, realize the anti-effect that flies out.
Claims (1)
1. one kind is not had transmission center axis butterfly valve in the pin, comprising: valve body and valve seat; Described valve body and valve seat are assembly parts, and valve seat directly vulcanizes to valve body; It is characterized in that also comprising: valve rod and valve plate; Described valve rod passes valve plate, and the square toes on the described valve rod cooperate with square hole on the valve plate; Described valve plate realizes that with valve seat global face cooperates, and certain magnitude of interference is arranged; The lower end of described valve rod and valve seat mesopore interference fit; The upper end of described valve rod is connected with valve body top; An axle sleeve also is inserted in upper end at described valve rod; V-shaped seal ring of interior positioned beneath at described axle sleeve; Realize the interference fit of valve rod and valve body through described V-shaped seal ring; Above described axle sleeve interior, also comprise: one first jump ring, one second jump ring and a packing ring; Described first jump ring is installed in the jump ring groove of valve rod, and described second jump ring is installed in the jump ring groove of valve body, and described packing ring is between first jump ring and second jump ring and be in contact with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205503282U CN202418632U (en) | 2011-12-23 | 2011-12-23 | No-pin internal transmission center through shaft butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205503282U CN202418632U (en) | 2011-12-23 | 2011-12-23 | No-pin internal transmission center through shaft butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418632U true CN202418632U (en) | 2012-09-05 |
Family
ID=46743402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205503282U Expired - Fee Related CN202418632U (en) | 2011-12-23 | 2011-12-23 | No-pin internal transmission center through shaft butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015596A (en) * | 2020-01-06 | 2020-04-17 | 湖南湘钢工程技术有限公司 | Device special for online opening and closing of large butterfly valve |
-
2011
- 2011-12-23 CN CN2011205503282U patent/CN202418632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015596A (en) * | 2020-01-06 | 2020-04-17 | 湖南湘钢工程技术有限公司 | Device special for online opening and closing of large butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20131223 |