CN206487882U - Leakage-free valve - Google Patents
Leakage-free valve Download PDFInfo
- Publication number
- CN206487882U CN206487882U CN201720151351.1U CN201720151351U CN206487882U CN 206487882 U CN206487882 U CN 206487882U CN 201720151351 U CN201720151351 U CN 201720151351U CN 206487882 U CN206487882 U CN 206487882U
- Authority
- CN
- China
- Prior art keywords
- valve
- flange
- sleeve
- bonnet
- polished rod
- 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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- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
A kind of leakage-free valve, it includes valve body（1）, valve seat is provided with the middle part of valve body（2）, valve element is provided with the top of valve seat（3）, valve element is made up of a disk body and cylinder, screw mandrel（9）It is spun in cylinder, the top of valve body extends outward a flange（12）, bonnet（7）It is made up of ring flange and sleeve body, the ring flange of bonnet and the flange of valve body are connected, and screw mandrel is protruded upward from the sleeve body of bonnet, and rubber sleeve is covered on the cylinder of valve element（4）, the small flange of rubber sleeve lower end and the disk body of valve element be tightly connected, and the big flange of rubber set upper side is sealed between bonnet and the flange of valve body.The characteristics of the utility model is, provided with rubber sleeve as the seal between valve element and valve body between valve element and valve body, screw mandrel when rotating seal without abrasion, it is ensured that the sealing property of valve.
Description
Technical field
The utility model is related to a kind of valve, and it includes valve body, valve seat, valve element and screw mandrel, and screw mandrel driving valve element makes valve element
Cover valve seat or lift off a seat, realize valve opening and closing.
Background technology
The structure of valve includes valve body, and valve seat is provided with valve body, and the cavity of valve body is divided into inlet part and gone out by valve seat
Oral area point, screw mandrel driving valve element, makes valve element cover valve seat or lift off a seat, so as to realize valve opening and closing.Due to silk
Bar will stretch out from valve body, be sealed in the contact site of screw mandrel and valve body with seal, to prevent the fluid edge in valve body
Screw mandrel is leaked, but can produce abrasion to seal during screw mandrel motion, declines sealing property.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of leakage-free valve, the screw mandrel fortune of the leakage-free valve
The sealing property of valve can effectively be kept without abrasion to seal when dynamic.
The technical solution of the utility model is, a kind of leakage-free valve, and it includes valve body 1, on the middle part of valve body
Provided with valve seat 2, valve element 3 is provided with the top of valve seat, valve element is made up of a disk body and cylinder, internal thread, silk are provided with cylinder
Bar 9 is spun in cylinder, and the top of valve body extends outward a flange 12, and bonnet 7 is connected with flange, the polished rod portion on the top of screw mandrel
Divide and protruded upward from bonnet, polished rod is provided with anti-shifting structure, it is characterized in that, rubber sleeve 4, rubber are covered on the cylinder of valve element
The small flange of gum cover lower end and the disk body of valve element are tightly connected, and the big flange of rubber set upper side is sealed in the method for bonnet and valve body
Between orchid.
The characteristics of the utility model is to be used as the sealing between valve element and valve body provided with rubber sleeve between valve element and valve body
Part, makes valve element move downward or upward when screw mandrel is rotated, and rubber sleeve is stretched or shunk therewith, because rubber sleeve is to be enclosed on valve
On the cylinder of core, the frictional force very little between rubber sleeve and the cylinder of valve element, the inwall of rubber sleeve is almost without abrasion, even if production
Raw abrasion nor affects on sealing property.The fluid in leakage-free valve will not be leaked out along screw mandrel compared with prior art,
Screw mandrel rotate when seal without abrasion, it is ensured that the sealing property of valve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Accompanying drawing mark is represented respectively：1- valve bodies, 2- valve seats, 3- valve elements, 4- rubber sleeves, 5- sealing gaskets, 6- packing rings, 7- valves
Lid, 8- stop collars, 9- screw mandrels, 10- guide rods, 11- bearing supports, 12- flanges, 13- polished rods, 14- spokes.
Embodiment
In conjunction with brief description of the drawings embodiment of the present utility model.
A kind of leakage-free valve, it includes valve body 1, and valve seat 2 is provided with the middle part of valve body, is set above valve seat
There is valve element 3, valve element is made up of a disk body and cylinder, internal thread is provided with cylinder, screw mandrel 9 is spun in cylinder, the top of valve body
A flange 12 is extended outward, bonnet 7 is made up of ring flange and sleeve body, the ring flange of bonnet and the flange of valve body are connected, silk
The top non-threaded of bar is polished rod 13, and polished rod protrudes upward from the sleeve body of bonnet, and the upper end of sleeve body is to contract, the contraction
Portion is engaged with polished rod, polished rod be provided with anti-shifting structure, on the cylinder of valve element cover rubber sleeve 4, rubber sleeve lower end it is small
The disk body of flange and valve element is tightly connected, and the big flange of rubber set upper side is sealed between bonnet and the flange of valve body.
Described rubber sleeve is made up of silastic material, and silicon rubber has corrosion-resistant, high temperature resistant and antioxygenic property.
Set anti-shifting structure, includes the contraction flow region of bonnet sleeve body on polished rod, in the upper surface of contraction flow region provided with limit
Position set 8, in the flange that the lower surface of contraction flow region is polished rod bottom, polished rod is passed through from stop collar, and stop collar is consolidated by pin
It is scheduled on polished rod, such screw mandrel is only capable of rotating without play above and below energy in bonnet sleeve body.
To prevent the stress that the big flange of the rubber set upper side in extended state is born excessive, in the big convex of rubber set upper side
Packing ring 6 and sealing gasket 5 are provided between edge and the flange of valve body, the internal diameter of packing ring is slightly larger than rubber sleeve outer diameter, the work of packing ring
With being to prevent from forming cavity between the big flange and bonnet of rubber sleeve in stretching, the effect of sealing gasket makes packing ring and valve body
Sealing is formed between flange.
Valve element is possible to transfer in screw mandrel rotation process, rubber sleeve is produced distortion, to prevent the generation of this phenomenon,
Guide sleeve 11 is provided with the lower central position of valve seat, guide sleeve is fixedly connected by many spokes 14 with valve seat, guide sleeve
The section of inwall is square, is provided with guide rod 10 in the bottom of valve element, guide rod is fittingly inserted into guide sleeve.
The right-hand member of valve body is valve inlet, and the left end of valve body is valve export, valve opening when valve element is separated with valve seat, valve
Valve is closed when core is fitted with valve seat.
Claims (4)
1. a kind of leakage-free valve, it includes valve body（1）, valve seat is provided with the middle part of valve body（2）, in the top of valve seat
Provided with valve element（3）, valve element is made up of a disk body and cylinder, provided with internal thread in cylinder, screw mandrel（9）It is spun in cylinder, valve body
Top extend outward a flange（12）, bonnet（7）It is made up of ring flange and sleeve body, the ring flange of bonnet and the method for valve body
Orchid connection, the top non-threaded of screw mandrel is polished rod（13）, polished rod protrudes upward from the sleeve body of bonnet, and the upper end of sleeve body is inside
Shrink, the contraction flow region is engaged with polished rod, polished rod is provided with anti-shifting structure, it is characterized in that, it is cased with rubber on the cylinder of valve element
Gum cover（4）, the small flange of rubber sleeve lower end and the disk body of valve element be tightly connected, and the big flange of rubber set upper side is sealed in bonnet
Between the flange of valve body.
2. leakage-free valve according to claim 1, it is characterized in that, set anti-shifting structure on polished rod, including bonnet
The contraction flow region of sleeve body, stop collar is provided with the upper surface of contraction flow region（8）, it is the convex of polished rod bottom in the lower surface of contraction flow region
Edge, polished rod is passed through from stop collar, and stop collar is fixed on polished rod by pin.
3. leakage-free valve according to claim 1, it is characterized in that, big flange and the flange of valve body in rubber set upper side
Between be provided with packing ring（6）And sealing gasket（5）, the internal diameter of packing ring is slightly larger than rubber sleeve outer diameter.
4. the leakage-free valve according to one of claim 1-3, it is characterized in that, set in the lower central position of valve seat
It is equipped with guide sleeve（11）, guide sleeve passes through many spokes（14）It is fixedly connected with valve seat, the section of guide sleeve inwall is square,
Guide rod is provided with the bottom of valve element（10）, guide rod is fittingly inserted into guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151351.1U CN206487882U (en) | 2017-02-20 | 2017-02-20 | Leakage-free valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151351.1U CN206487882U (en) | 2017-02-20 | 2017-02-20 | Leakage-free valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206487882U true CN206487882U (en) | 2017-09-12 |
Family
ID=59763693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720151351.1U Expired - Fee Related CN206487882U (en) | 2017-02-20 | 2017-02-20 | Leakage-free valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206487882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575586A (en) * | 2017-09-21 | 2018-01-12 | 安徽荣达阀门有限公司 | One kind rotatably compresses valve |
-
2017
- 2017-02-20 CN CN201720151351.1U patent/CN206487882U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575586A (en) * | 2017-09-21 | 2018-01-12 | 安徽荣达阀门有限公司 | One kind rotatably compresses valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20180220 |