CN2440137Y - Short flat-wedging type sluice valve - Google Patents
Short flat-wedging type sluice valve Download PDFInfo
- Publication number
- CN2440137Y CN2440137Y CN 00253894 CN00253894U CN2440137Y CN 2440137 Y CN2440137 Y CN 2440137Y CN 00253894 CN00253894 CN 00253894 CN 00253894 U CN00253894 U CN 00253894U CN 2440137 Y CN2440137 Y CN 2440137Y
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- CN
- China
- Prior art keywords
- valve
- hermetically sealed
- valve seat
- plane
- gland
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a short flat wedge type sluice valve, which is composed of a valve body, a valve seat, and a valve rod, wherein, a double face sealing sluice plate is arranged in the valve body; one side of the double face sealing sluice plate is an inclined plane, and the other side is a plane; one side of each of the valve body and the valve seat corresponding to the double face sealing sluice plate is an inclined plane wedge type valve seat, and the other side is a plane valve seat; a valve rod element between the valve cover and a hand wheel is sheathed in a full sealing sleeve.
Description
The utility model relates to a kind of flashboard valve.
Its function of gate valve is with the medium of connecting or blocking in the pipeline, traditional gate valve adopts the wedge-type sealing configuration usually, the relative butterfly valve of valve body spacing is long, and butterfly valve exists flow resistance big, the phenomenon that sealing effect is bad, and what its packing seal structure adopted is the Gland compression type, just easily produce behind the certain number of times of open and close and reveal, and valve rod acts directly on the support of valve.The power that the valve opening of this kind structure is closed is unfavorable for operation more greatly, the valve of heavy caliber high pressure grade especially, and it is more inconvenient to open.The filler of its Gland below of conventional gate valve directly contacts with external environment condition, and temperature, humidity, sand and dust all can cause valve packing to lose efficacy, and influence the working life and the stability of valve, very easily cause leakage, befouling environment.
The purpose of this utility model provides a kind of short body flat-wedging type gate valve, and it is long to overcome traditional gate valve body spacing, and flow resistance is big, the deficiency that sealing effect is bad is eliminated the phenomenon that the stuffing box packing rapid wear leaks, and increases the valve rod fulcrum, prolong the working life of valve, improve the using effect of valve.
For achieving the above object, the utility model is taked following design proposal: this short body flat-wedging type gate valve, formed by valve body, valve seat and valve rod, be provided with the dual face seals flashboard in the valve body, the dual face seals flashboard simultaneously is the inclined-plane, and another side is the plane, and valve body and valve seat one side corresponding with the dual face seals flashboard is inclined-plane wedge-type valve seat, opposite side is a planar valve seat, and the valve rod element between valve gap and the handwheel is wrapped in the hermetically sealed cover.
The utility model has the advantages that with comparatively simple structure and overcome intervalve apart from excessive, the big sealing effect of butterfly valve flow resistance bad and the leakage at the filler place of compressing and the phenomenon that valve opening is closed effort, valve open and close in use nimbly and freely, stuffing box packing is in and does not have the husky erosion of weathering phenomenon in the sleeve of sealing, thereby prolonged the working life of valve greatly, have good sealing effect in the lump, can effectively guarantee the long-term stability operation of valve.The utlity model has unique surface structure, spacing is short, and sealing effect is safe and reliable, does not have and leaks, and using effect is good, can not cause environmental pollution.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model
As shown in Figure 1, be provided with dual face seals flashboard 5 in the valve body 4 of the present utility model, this flashboard simultaneously is the inclined-plane, and another side is the plane, and valve body and valve seat one side corresponding with this flashboard is inclined-plane wedge-type valve seat 26, and opposite side is a planar valve seat 3.Valve rod 6 elements between valve gap 9 and the handwheel 19 are wrapped in the hermetically sealed cover 25.The valve rod lower end is coupling on the dual face seals flashboard.Horizontal spacing between the valve seat can be adjusted by valve seat bracing ring 2 and valve seat gland 1.
Hermetically sealed cover lower end fuses by lock screw 12 and valve gap.Hermetically sealed set upper side seals with bearing gland 22.Hermetically sealed cover is a round barrel shape, will be positioned at the Gland 14 on the valve rod, retaining ring 16, and thrust washer 17, bearing 23 all is wrapped in wherein, can prevent effectively that the valve rod element from directly contacting with extraneous.Prevent weathering, corrosion contamination and leakage.Lock screw is that roof pressure is fixed hermetically sealed cover at the locking ring 13 that is positioned at the valve gap groove.
Gland lower end roof pressure is in filler 27 upper ends of valve gap inner valve stem periphery, and retaining ring 16 is established in the Gland upper end, and in order to the roof pressure Gland, the periphery of retaining ring is fixed by being positioned at the hermetically sealed adjustment screw rod that puts 15, or adjusts.Obviously valve rod and filler wear extent can be adjusted the density degree of filler by adjusting screw rod, to guarantee the excellent sealing effect of valve packing.Packing seat 11 is established in order to the support filler in the filler lower end.Valve gap fuses with valve body by clamping bolt 8 and the nut 10 that is wrapped in the metal gasket 7.
Thrust washer 17 is established in order to the roof pressure retaining ring in valve rod upper end at retaining ring, and handwheel fuses by screw mandrel copper sheathing 18 and valve rod upper end, and screw mandrel copper sheathing side is coupling by bearing 23 and hermetically sealed cover.Bearing upper end is with bearing gland 22 and the hermetically sealed cover rigid bearing that is spirally connected.
Handwheel fuses with the valve rod upper end by pin block 20 and locking nut 21.
Planar valve seat adopts compositing organic material, the wedge-type sealing surface of seat directly adopts the cemented carbide face, planar valve seat and from valve body, mouthful packing into respectively, the wedge-type valve seat adopts the close-fitting mode, planar valve seat adopts floating type, the valve seat bracing ring is packed into by the valve right output port, and the sealing effect that valve seat gland 1 is adjusted planar valve seat and flashboard is installed afterwards.During assembling filler is pressurized filing to suitable degree, pack into Gland and other hermetically sealed annex, medium enters from left port during use, once the planar ends of plate and planar valve seat have the plane sealing effect when need are closed, more have from the closed lateral thrust that produces of wedge-type valve seat, make it to have better sealing effect.Valve rod and filler wear extent can be adjusted the density program of filler by adjusting screw 15, to guarantee the good sealing effect of valve packing.The sealing effect of valve packing carries out under closed state fully, has avoided extraneous dust storm to the erosion of filler and temperature, the humidity Effect on Performance to filler.And then guaranteed the sealability of valve long-term stability.The effect of oilhole 24 is to add lubricant oil to hermetically sealed cover inner valve stem element.
The utility model is novel because spacing short in a word, avoided the narrow and small use that limits gate valve because of row space, thereby enlarged the using scope of gate valve, simple in structure, no flow resistance, good seal performance can overcome the influence of external environment condition to the seal degree of valve, and outward appearance, sealing effect all are a kind of desirable gate valves.
Claims (4)
1, a kind of short body flat-wedging type gate valve, formed by valve body, valve seat and valve rod, it is characterized in that: be provided with the dual face seals flashboard in the valve body, the dual face seals flashboard simultaneously is the inclined-plane, another side is the plane, valve body and valve seat one side corresponding with the dual face seals flashboard is inclined-plane wedge-type valve seat, and opposite side is a planar valve seat, and the valve rod element between valve gap and the handwheel is wrapped in the hermetically sealed cover.
2, short body flat-wedging type gate valve according to claim 1, it is characterized in that: hermetically sealed cover lower end fuses by lock screw and valve gap, and hermetically sealed set upper side seals with bearing gland.
3, short body flat-wedging type gate valve according to claim 1 is characterized in that: Gland lower end roof pressure is in the filler upper end of valve gap inner valve stem periphery, and retaining ring is established in the Gland upper end, and the retaining ring periphery is fixed by being positioned at the hermetically sealed adjustment screw rod that puts.
4, short body flat-wedging type gate valve according to claim 1 is characterized in that: handwheel fuses by screw mandrel copper sheathing and valve rod upper end, and screw mandrel copper sheathing side is coupling by bearing and hermetically sealed cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253894 CN2440137Y (en) | 2000-10-11 | 2000-10-11 | Short flat-wedging type sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253894 CN2440137Y (en) | 2000-10-11 | 2000-10-11 | Short flat-wedging type sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440137Y true CN2440137Y (en) | 2001-07-25 |
Family
ID=33611260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00253894 Expired - Fee Related CN2440137Y (en) | 2000-10-11 | 2000-10-11 | Short flat-wedging type sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440137Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865299A (en) * | 2010-07-01 | 2010-10-20 | 河南理工大学 | Flat wedge floating type ceramic gate valve |
-
2000
- 2000-10-11 CN CN 00253894 patent/CN2440137Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865299A (en) * | 2010-07-01 | 2010-10-20 | 河南理工大学 | Flat wedge floating type ceramic gate valve |
| CN101865299B (en) * | 2010-07-01 | 2012-07-04 | 河南理工大学 | Flat wedge floating type ceramic gate valve |
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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 |