CN207554913U - Self sealss resilient gate valve - Google Patents
Self sealss resilient gate valve Download PDFInfo
- Publication number
- CN207554913U CN207554913U CN201721785405.6U CN201721785405U CN207554913U CN 207554913 U CN207554913 U CN 207554913U CN 201721785405 U CN201721785405 U CN 201721785405U CN 207554913 U CN207554913 U CN 207554913U
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- China
- Prior art keywords
- valve
- axle sleeve
- deck
- self sealss
- valve rod
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- Lift Valve (AREA)
Abstract
A kind of self sealss resilient gate valve, including valve body, valve deck is sealedly connected on valve body, in valve deck valve rod is connected with through lifting, stem bottom is fixed with the flashboard of sealed valve body channel, is connected with the stent being connect with valve rod upper end at the top of valve deck, valve rod upper sleeve gasket has axle sleeve, axle sleeve is fixed by stent and valve deck limiting, and axle sleeve is with being embedded with the elastic packing group for sealing on the surface of valve rod cooperation.The utility model it is rational in infrastructure, compact, by covering Upper shaft sleeve on valve rod and setting elastic packing group being surveyed in axle sleeve, elastic packing group is made to coordinate with valve stem seal, eliminate filler position and the structure of traditional self sealss resilient gate valve, the pretightning force generated by the flexible deformation of itself and the pressure from fluid carry out self sealss, are not required to external force to force sealing, more reduce the possibility that valve rod gets rusty, using effect is good, suitable for promoting.
Description
Technical field
The utility model is related to valve technology field more particularly to a kind of resilient gate valve, specifically a kind of self sealss elasticity
Gate valve.
Background technology
Resilient gate valve is a kind of one of more demanding valve of casting accuracy, with good sealing performance, sealing surface
It does not need to process, valve bottom un-grooved does not accumulate the outstanding properties such as silt particle, is widely used in all trades and professions.Existing market
On resilient gate valve in the prevalence of the problem of be：Using soft graphite as filler, filler position generate mutually move fortune easily by
To abrasion, filler can be loose, generates leakage；Since the valve rod of resilient gate valve and the sealing of filler contact site are by gland
Applying external force makes filler generate what plastic deformation holding valve rod was realized, can thus increase the keying torque of valve；If valve
Long-term outer in the state that is turned on and off, valve rod is with filler position since anoxic valve rod can generate corrosion；Many resilient gate valve producers
In order to save material, valve body Shang Zhong roads flange thickness is often designed very thin, threaded hole directly drills, and makes screw and threaded hole
It is directly exposed in air, such time has grown screw and threaded hole will will when safeguarding and dismounting by atmospheric corrosion, valve
Highly difficult, the screw of connection causes valve body to scrap it is possible that be broken.
Utility model content
The utility model will solve the above-mentioned problems of the prior art, provide a kind of self sealss resilient gate valve, solve mesh
The problem of valve rod easily gets rusty when preceding resilient gate valve filler position is easily leaked and opened.
The utility model solves the technical solution of its technical problem use：This self sealss resilient gate valve, including valve body, valve
Valve deck is sealedly connected on body, running through lifting in valve deck is connected with valve rod, and stem bottom is fixed with the flashboard of sealed valve body channel,
The stent being connect with valve rod upper end is connected at the top of valve deck, valve rod upper sleeve gasket has axle sleeve, and axle sleeve is limited solid by stent and valve deck
Fixed, axle sleeve is with being embedded with the elastic packing group for sealing on the surface of valve rod cooperation.After setting in this way, valve rod and survey in axle sleeve
Elastic packing group is tightly connected, and elastic packing group flexible deformation is not required to external force with regard to that can reach sealing effect at this time so as to hold valve rod tightly
Fruit, the keying torque of such valve also very little.When internal pipe pressure increase, elastic packing group generate bigger flexible deformation with
Valve rod 5 is embraced more tight.Therefore internal pipe pressure variation has not significant impact, to being sealed with elastic packing group so bullet
Property gate valve elastic packing group self sealss effect be much higher than with gland apply external force packing seal effect.
As further improvement of the utility model, elastic packing group is close to valve rod above and below the sealing ring of sealing by one group
It rearranges.Elastic packing group is arranged above and below by one group of elastic seal ring and formed, since sealing ring and valve stem contacts area are small, peace
It is interference fitted during dress, sealing ring generates flexible deformation, can effectively strengthen leakproofness.
As further improvement of the utility model, the connecting pin of stent and valve deck is respectively equipped with fitted shaft set upper and lower side
Card slot.Axle sleeve upper and lower side using card slot top pressure with valve deck by stent and then is fixed, and axle sleeve position is completely fixed.
As further improvement of the utility model, axle sleeve is non-lead Cu alloy material integrated formed structure.Due to axle sleeve
It is manufactured using non-cupro lead, there is good corrosion resistance and wearability, it is harmless, drinking water can be directly applied to
On, enhance the service life of valve.
As further improvement of the utility model, seal and be connected between axle sleeve and valve deck, axle sleeve coordinates with valve deck
Side and bottom end junction be cased with sealing ring.Sealing ring is located at axle sleeve and the side of valve deck cooperation and bottom end junction, in this way
Sealing ring can be close to valve deck card slot bottom end but also be tightly attached to card slot side, all be blocked from two end faces, sealing
Effect is more preferable.
As further improvement of the utility model, valve body is tightly connected with valve deck by screw, and screw is fully located at
In valve deck and valve body, screw upper end is dead with sealing with wax.Valve body screw thread hole is drilled out in traditional elastic valve, after a period of time,
Screw will be by atmospheric corrosion with threaded hole, and such valve will be highly difficult when dismounting is with repair, and valve body and valve deck now
Valve body is drilled with the threaded hole that end penetrates when being connected by screw, and screw is mounted in valve deck counterbore extremely to be completely cut off with sealing with wax with space, this
Sample had both made in moist operating mode, and screw and threaded hole will not be all in direct contact with the external world, thus will not be by atmospheric corrosion.
As further improvement of the utility model, rubber layer, rubber layer are coated with for iron casting frame, flashboard in flashboard
It seals and coordinates with valve interior wall.Iron casting frame intensity is high, and using effect is good, and the rubber layer that flashboard is coated with can well with
Valve interior wall sealing cooperation, flashboard can block channel completely.
The utility model has the advantages that：The utility model it is rational in infrastructure, compact, by covering Upper shaft sleeve on valve rod
And setting elastic packing group is surveyed in axle sleeve, elastic packing group is made to coordinate with valve stem seal, eliminates traditional self sealss elasticity lock
The filler position of valve and structure, the pretightning force generated by the flexible deformation of itself and the pressure from fluid carry out self sealss, no
External force is needed to force sealing, more reduces the possibility that valve rod gets rusty, using effect is good, suitable for promoting.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Reference sign：Valve body 1, valve deck 2, valve rod 3, flashboard 4, stent 5, axle sleeve 6, elastic packing group 7, screw 8 are close
Seal ring 9.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to attached drawing：This self sealss resilient gate valve in the present embodiment, including valve body 1, valve is sealedly connected on valve body 1
Lid 2, valve deck 2 is interior to be connected with valve rod 3 through lifting, and 3 bottom of valve rod is fixed with the flashboard 4 of 1 channel of sealed valve body, 2 top of valve deck
The stent 5 being connect with 3 upper end of valve rod is connected with, 3 upper sleeve gasket of valve rod has axle sleeve 6, and axle sleeve 6 is limited solid by stent 5 and valve deck 2
It is fixed, the elastic packing group 7 for sealing is embedded on the surface that axle sleeve 6 coordinates with valve rod 3.
The sealing ring that elastic packing group 7 is close to valve rod 3 sealing by one group, which is arranged above and below, to be formed.
The connecting pin of stent 5 and valve deck 2 is respectively equipped with the card slot of cooperation 6 upper and lower side of axle sleeve.
Axle sleeve 6 is non-lead Cu alloy material integrated formed structure, seals and is connected between axle sleeve 6 and valve deck 2, axle sleeve 6
The side and bottom end junction coordinated with valve deck 2 is cased with sealing ring 9.
Valve body 1 is tightly connected with valve deck 2 by screw 8, and screw 8 is fully located in valve deck 2 and valve body 1,8 upper end of screw
It is dead with sealing with wax.
It is iron casting frame in flashboard 4, flashboard 4 is coated with rubber layer, and rubber layer coordinates with 1 inner wall sealing of valve body.
Although the utility model is shown and described by reference to preferred embodiment, this profession is common
Technical staff can make various variation in form and details it is to be appreciated that in the range of claims.
Claims (7)
1. a kind of self sealss resilient gate valve including valve body (1), is sealedly connected with valve deck (2), runs through in valve deck (2) on valve body (1)
Lifting is connected with valve rod (3), and valve rod (3) bottom is fixed with the flashboard (4) of sealed valve body (1) channel, it is characterized in that：The valve deck
(2) top is connected with the stent (5) being connect with valve rod (3) upper end, and valve rod (3) upper sleeve gasket has axle sleeve (6), the axle sleeve
(6) it is fixed by stent (5) and valve deck (2) limiting, the axle sleeve (6) on the surface of valve rod (3) cooperation with being embedded with for sealing
Elastic packing group (7).
2. self sealss resilient gate valve according to claim 1, it is characterized in that：The elastic packing group (7) is by one group and valve
The sealing ring that bar (3) is close to sealing is arranged above and below composition.
3. self sealss resilient gate valve according to claim 1, it is characterized in that：The stent (5) and the connecting pin of valve deck (2)
It is respectively equipped with the card slot of cooperation axle sleeve (6) upper and lower side.
4. self sealss resilient gate valve according to claim 1 or 2, it is characterized in that：The axle sleeve (6) is non-lead copper alloy material
Expect integrated formed structure.
5. self sealss resilient gate valve according to claim 1, it is characterized in that：It is sealed between the axle sleeve (6) and valve deck (2)
It is connected, the axle sleeve (6) is cased with sealing ring (9) with the side of valve deck (2) cooperation and bottom end junction.
6. self sealss resilient gate valve according to claim 1, it is characterized in that：The valve body (1) passes through screw with valve deck (2)
(8) it is tightly connected, the screw (8) is fully located in valve deck (2) and valve body (1), and screw (8) upper end is dead with sealing with wax.
7. self sealss resilient gate valve according to claim 1, it is characterized in that：It is iron casting frame in the flashboard (4), it is described
Flashboard (4) is coated with rubber layer, and the rubber layer coordinates with valve body (1) inner wall sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721785405.6U CN207554913U (en) | 2017-12-19 | 2017-12-19 | Self sealss resilient gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721785405.6U CN207554913U (en) | 2017-12-19 | 2017-12-19 | Self sealss resilient gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554913U true CN207554913U (en) | 2018-06-29 |
Family
ID=62663743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721785405.6U Active CN207554913U (en) | 2017-12-19 | 2017-12-19 | Self sealss resilient gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324056A (en) * | 2021-07-06 | 2021-08-31 | 福建省开诚机械有限公司 | High-temperature and high-pressure resistant WCB valve steel casting |
-
2017
- 2017-12-19 CN CN201721785405.6U patent/CN207554913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324056A (en) * | 2021-07-06 | 2021-08-31 | 福建省开诚机械有限公司 | High-temperature and high-pressure resistant WCB valve steel casting |
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