CN2462156Y - High vacuum baffle valve - Google Patents
High vacuum baffle valve Download PDFInfo
- Publication number
- CN2462156Y CN2462156Y CN 00241169 CN00241169U CN2462156Y CN 2462156 Y CN2462156 Y CN 2462156Y CN 00241169 CN00241169 CN 00241169 CN 00241169 U CN00241169 U CN 00241169U CN 2462156 Y CN2462156 Y CN 2462156Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- rod
- baffle plate
- high vacuum
- 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 high vacuum blocking plate valve which is composed of an upper cover, a valve body, a valve cover, a shaft sleeve, a valve rod, a blocking plate, a valve seat flange, two connecting pipes, etc. A connecting mode that the valve rod is connected with the blocking plate through a roller ball existing in the prior art is changed into a connecting mode that the valve rod is connected with the blocking plate through a roller (needle), which limits the side swing of the blocking plate and ensures that the blocking plate is better perpendicular to the valve rod all the time. A mode than a feeding rod is arranged at the upper part and a screw rod is arranged at the lower part existing in the prior art is changed into a mode that the screw rod is arranged at the upper part and the feeding rod is arranged at the lower part, and the valve rod is movably matched with the shaft sleeve with a shaft hole of minor space, which limits the inclination of the valve rod and simultaneously protects a shaft seal. The sealing performance of the whole body of the utility model is improved, and the utility model is not limited by an installing position.
Description
The utility model relates to a kind of high vacuum flapper valve, belongs to the opening/closing mechanism that medium was blocked and connected to being used in a kind of vacuum system.
High vacuum flapper valve of the prior art, referring to accompanying drawing 1, interior threaded axle sleeve 1.4, the valve rod 1.5 that is connected with the axle sleeve spiral, the baffle plate 1.6 as open-shut device that is connected in the valve rod lower end that is welded as a whole by last cover 1.1, valve body 1.2, valve gap 1.3, with valve gap, be fixed in valve seat flange 1.7 in the valve body, two connecting tubes 1.8,1.9 etc. and form, the keying of this high vacuum flapper valve is to drive baffle plate by valve rod lifting vertically whether closely to contact the valve seat flange and decide.
High vacuum flapper valve of the prior art, in actual use, the mounting point is restricted, and it can only erect dress when installing, and promptly can only vertically install along valve rod lifting direction, and can not horizontally adorn.This is to adopt the ball Placement to be connected because of valve rod and baffle plate.Its concrete structure is, ball 1.11 is embedded the connecting groove 1.13 on the hypomere valve rod opened that is positioned at the inboard that fixedly is welded in baffle plate 1.6 connecting heads 1.12, and fixes with propping up head screw 1.14.Such valve that connects with ball type when horizontal dress owing to connection part axial clearance is bigger, easily cause the baffle plate side-sway and with the valve rod out of plumb, thereby influence sealability.High vacuum flapper valve of the prior art should not horizontal dress Another reason be that the weight of baffle plate, valve rod can make the monolateral stressed and influence of axle envelope 1.10 by sealing property.In addition, valve valve rod epimere is realized sealing by axle envelope 1.10, and the stage casing then is threaded with axle sleeve lower end 1.15 because the gap that is threaded is bigger, during horizontal dress valve rod under action of gravity downwards knockdown also can drive the baffle plate inclination and then influence sealability.
The utility model aims to provide a kind of dress but also high vacuum flapper valve that can horizontal dress of not only can having erected.
Technical solution of the present utility model is as follows:
The interior threaded axle sleeve that the utility model is welded as a whole by last cover, valve body, valve gap, valve gap, the valve rod that is connected with the axle sleeve spiral, be connected in the valve rod lower end the baffle plate as open-shut device, be fixed in valve seat flange in the valve body, two connecting tubes etc. and form, wherein, the hypomere valve rod that has connecting groove is installed in the connecting head that is welded as a whole with baffle plate, it is characterized in that: be embedded with a plurality of rollers between described connecting head inboard and valve rod.
Said structure has limited the side-sway of baffle plate well, has guaranteed that baffle plate keeps vertical with valve rod all the time well.
Certainly, roller can substitute by needle roller equally in the said structure.
Further technical solution is:
The epimere of described valve rod has screw thread and is connected with sleeve thread, and the stage casing of valve rod and shaft room are realized sealing by axle envelope, valve rod and an axle envelope lower end be the less axis hole of matching gap movingly.
Further in the technological scheme, the axis hole matching gap is significantly smaller than the inclination that valve rod has not only been limited in the gap that is threaded greatly, has also protected the axle envelope simultaneously.Further technological scheme makes valve obtain bigger raising in overall sealing performance (interior leakage, leak outside).
Below with reference to drawings and Examples the utility model is further described:
Accompanying drawing 1 is the structural representation of high vacuum flapper valve in the prior art
Accompanying drawing 2 is the utility model embodiment's a structural representation
Referring to accompanying drawing 2, the utility model embodiment is mainly by last cover 2.1, valve gap 2.3, valve body 2.2, axle sleeve 2.4, valve rod 2.5, plane baffle plate 2.6, valve seat 2.7, two connecting tubes 2.8,2.9 constitute Deng parts, wherein going up cover 2.1 is bolted to connection on valve gap 2.3, valve gap 2.3 is fixedlyed connected with valve body 2.2 by bolt, and by the sealing of two Sealings, axle sleeve and valve gap are welded as a whole, valve rod 2.5 is connected with axle sleeve 2.4 spirals by the screw thread of its epimere, its stage casing and shaft room are equipped with axle envelope 2.10 and realize sealing, be positioned at axle envelope down the lower end axle sleeve and valve rod between be the less axis hole of matching gap movingly 2.15, the lower end of valve rod is installed in the connecting head 2.12 that is welded as a whole with baffle plate 2.6, embed a plurality of roller 2.11 therebetween as roller, the connecting head top is fixing by tightening nut 2.13.The square toes 2.14 that turn the valve rod upper end make valve rod rise along the axle sleeve spiral, and baffle plate is lifted off a seat, and flapper valve is in opening state; Backward rotation makes baffle plate closely contact valve seat, and flapper valve is in cut-off state.
Claims (3)
1, a kind of high vacuum flapper valve, interior threaded axle sleeve, the valve rod that is connected with the axle sleeve spiral, the baffle plate that is connected in the valve rod lower end that is welded as a whole by last cover, valve body, valve gap, valve gap, be fixed in valve seat flange in the valve body, two connecting tubes etc. and form as open-shut device, wherein, the hypomere valve rod that has connecting groove is installed in the connecting head that is welded as a whole with baffle plate, it is characterized in that: be embedded with a plurality of rollers between described connecting head inboard and valve rod.
2, a kind of high vacuum flapper valve, interior threaded axle sleeve, the valve rod that is connected with the axle sleeve spiral that is welded as a whole by last cover, valve body, valve gap, valve gap, the baffle plate that is connected in the valve rod lower end, form with the valve seat flange in valve body, two connecting tubes etc. as open-shut device, wherein, the hypomere valve rod that has connecting groove is installed in the connecting head that is welded as a whole with baffle plate, it is characterized in that: be embedded with a plurality of needle rollers between described connecting head inboard and valve rod.
3, according to claim 1 or 2 arbitrary described high vacuum flapper valves, it is characterized in that: the epimere of described valve rod has screw thread and is connected with sleeve thread, the stage casing of valve rod and shaft room are realized sealing by axle envelope, valve rod and an axle envelope lower end be the less axis hole of matching gap movingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241169 CN2462156Y (en) | 2000-11-25 | 2000-11-25 | High vacuum baffle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241169 CN2462156Y (en) | 2000-11-25 | 2000-11-25 | High vacuum baffle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462156Y true CN2462156Y (en) | 2001-11-28 |
Family
ID=33601689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00241169 Expired - Fee Related CN2462156Y (en) | 2000-11-25 | 2000-11-25 | High vacuum baffle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462156Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104709A (en) * | 2012-11-10 | 2013-05-15 | 无锡裕力机械有限公司 | Blowoff valve of high-pressure spray pipe |
-
2000
- 2000-11-25 CN CN 00241169 patent/CN2462156Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104709A (en) * | 2012-11-10 | 2013-05-15 | 无锡裕力机械有限公司 | Blowoff valve of high-pressure spray pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |