CN205715716U - Low temperature stop valve - Google Patents
Low temperature stop valve Download PDFInfo
- Publication number
- CN205715716U CN205715716U CN201620469124.9U CN201620469124U CN205715716U CN 205715716 U CN205715716 U CN 205715716U CN 201620469124 U CN201620469124 U CN 201620469124U CN 205715716 U CN205715716 U CN 205715716U
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- CN
- China
- Prior art keywords
- sealing
- valve
- low temperature
- temperature stop
- stop valve
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- Withdrawn - After Issue
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Abstract
This application discloses a kind of low temperature stop valve, it is provided with the valve seat of limbers in the middle part of including and is positioned at the flap above limbers, valve seat is provided with black box near between one end and flap of flap, black box includes sealing member, sealing member includes the first sealing and the second sealing, black box also includes the extrusion for extruding the first sealing, and the second sealing is used for pushing up extrusion casting die.The low temperature stop valve that this utility model provides, by driving flap to move near limbers, first sealing is contacted with extrusion, and along with the motion of flap makes to contact between extrusion and the first sealing more and more tighter, sealing the most between the two is become better and better, and low temperature stop valve is in use for some time simultaneously, along with closing forces makes the first sealing compression forming, second sealing can push up and be pressed on extrusion, reaches the effect of dual compound seal.
Description
Technical field
The disclosure relates generally to water supply installation technical field, is specifically related to valve technology field, particularly relates to low temperature and cuts off
Valve.
Background technology
The situation in short supply along with freshwater resources the most gradually manifests, and the saving of water resource uses the most very urgent.Save
Water resource on the one hand be by water resource user attention water, using water wisely outside, in addition it is also necessary to ensure that water resource is at conveyer
Ensure during for not leak, thus farthest saving water resource.At present, freshwater resources such as resident uses from the beginning
Water, typically delivers to every household by tap water supply device by tap water, and water supply installation includes conveyance conduit and valve, wherein
Valve is used for controlling the state of tap water, such as cut-off or shunt regulating etc..
In prior art, tap water pipeline valve, usual material is plain cast iron, generally comprise valve body, valve gap, flap,
Valve seat and valve rod, valve rod moves through valve gap and with driving flap, and wherein flap and valve seat cooperate and realize cutting off current
Flowing, reach the purpose cut off the water supply.But stop valve of the prior art, due to affected by environment, especially under severe winter weather,
Sealing member between flap and valve seat is tightened, or life-time service makes sealing member impaired seriously, cause sealing property to show
Write and reduce, thus occur that tap water leaks out, surrounding enviroment and personal safety can be brought no small harm, the most now
Skyscraper, once reveal, it will bring disaster to the resident of whole floor.
Utility model content
In view of drawbacks described above of the prior art or deficiency, it is desirable to provide a kind of good seal performance and stable low temperature to cut off
Valve.
This utility model provides a kind of low temperature stop valve, including in the middle part of be provided with the valve seat of limbers and be positioned on limbers
The flap of side, valve seat is provided with black box near between one end and flap of flap, and black box includes sealing member, sealing member bag
Including the first sealing and the second sealing, black box also includes the extrusion for extruding the first sealing, the second sealing
For pushing up extrusion casting die.
The low temperature stop valve that this utility model provides, by driving flap to move near limbers so that first seals
Portion contacts with extrusion, and along with the motion of flap makes to contact between extrusion and the first sealing increasingly tighter, i.e. both
Between sealing become better and better, low temperature stop valve is in use for some time simultaneously, along with closing forces makes the first sealing pressure
Shortening type into, the second sealing can push up and be pressed on extrusion, reaches the effect of dual compound seal.
Accompanying drawing explanation
By the detailed description that non-limiting example is made made with reference to the following drawings of reading, other of the application
Feature, purpose and advantage will become more apparent upon:
The low temperature stop valve view in full section that Fig. 1 this utility model provides.
Detailed description of the invention
With embodiment, the application is described in further detail below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to this utility model.Further need exist for explanation
, for the ease of describing, accompanying drawing illustrate only the part relevant to utility model.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the application below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The low temperature stop valve view in full section that Fig. 1 this utility model provides, refer to Fig. 1, and the present embodiment provides a kind of low temperature to cut
Disconnected valve, including in the middle part of be provided with the valve seat 2 of limbers 15 and be positioned at the flap 3 above limbers 15, valve seat 2 is near flap 3
Being provided with black box between one end and flap 3, black box includes that sealing member, sealing member include that the first sealing 12 is close with second
Envelope portion 13, black box also includes the extrusion 14 for extruding the first sealing 12, and the second sealing 13 is used for pushing up extrusion pressure
Part 14.
Low temperature stop valve generally comprises valve body 1, valve gap 7, flap 3, valve stem nut 10, valve seat 2 and valve rod 5, flap 3,
Valve seat 2 and valve rod 5 are arranged in valve body 1, and valve gap 7 is fixing with valve body 1 to be connected, and valve rod 5 is through valve gap 7 and by valve clack cover 4
Achieving a fixed connection on flap 3, valve stem nut 10 is threadeded with valve rod 5, and when rotating handwheel 11, valve rod 5 drives flap 3 to transport
Dynamic, wherein flap 3 and valve seat 2 cooperate and realize cutting off the flowing of current.
In the present embodiment, being provided with limbers 15 in the middle part of valve seat 2, limbers 15 is used for the water inlet by entering stop valve
Tap water is incorporated into outlet, and flap 3 cooperates with valve seat 2, it is achieved to the cut-off of tap water with pass through.Typically pass through handwheel
11 band ovable valve stems 5, valve rod 5 drives flap 3 to move, by driving flap 3 to move near limbers 15 so that the first sealing
12 contact with extrusion 14, and along with the motion of flap 3 makes to contact between extrusion 14 with the first sealing 12 increasingly tighter,
Sealing the most between the two is become better and better, and low temperature stop valve is in use for some time simultaneously, along with closing forces makes first close
Envelope portion 12 compression forming, the second sealing 13 can push up and be pressed on extrusion 14, reach the effect of dual compound seal.
Preferably, the first sealing 12 includes the band being sheathed on flap 3 one end near valve seat 2, and second seals
Portion 13 is connected with one end away from limbers 15 on band and is positioned at the extrusion 14 top away from the end face of limbers 15,
It is more than the diameter of the end face of close limbers 15 on band with the diameter of the junction of the second sealing 13 on band.
In the present embodiment, band has certain thickness, and band is sheathed on flap 3 one end near valve seat 2,
When valve rod 5 drives flap 3 to move to valve seat 2, band contacts with the extrusion 14 on valve seat 2 and gradually the most mutually squeezes
Pressure so that sealing member effect between the two reaches optimal.Wherein, on band with the diameter of the junction of the second sealing 13
More than on band, the diameter of the end face of close limbers 15, the i.e. section of band tilt with the axis of limbers 15, real
Showed between band and extrusion 14 sealing property regulation, as after using for a long time, between band and extrusion 14 by
Make both there is a certain degree of abrasion in friction, cause when valve rod 5 is re-moved to identical position, valve seat 2 and valve
Sealing property between lobe 3 declines, and the band provided in the present embodiment can solve the problems referred to above, it is only necessary to by valve rod 5 again
Moving a part toward valve seat 2, the part now contacted with extrusion 14 is the band part bigger than diameter before, then
Secondary realization squeezed tight between the two, it is ensured that sealing.
Preferably, on band with end face near limbers 15 on the junction of the second sealing 13 to band
Diameter linearly reduces, and the second sealing 13 includes the first sealing ring.
In the present embodiment, with on the junction of the second sealing 13 to band the one of close limbers 15 on band
The diameter of end face linearly reduces, i.e. band is the circular cone band not having top so that joining between extrusion 14 and band
Closing more accurate, sealing effectiveness is relatively good and more stable.
Preferably, the first sealing 12 is formed in one with the second sealing 13.
In the present embodiment, the first sealing 12 is formed in one with the second sealing 13, can be easy to sealing member and be arranged on
On flap 3, too increase sealing member overall structure stability and wear and shock-resistant performance simultaneously.
Preferably, extrusion 14 includes the second sealing ring, and the second sealing ring is fixing with valve seat 2 near the side of valve seat 2 to be connected
Connect.
In the present embodiment, the second sealing ring is fixing with valve seat 2 near the side of valve seat 2 to be connected, opposite side and sealing member
Extruding.Wherein, valve seat 2 can be provided with the 3rd groove, the bottom of the second sealing ring is fixed in the 3rd groove.In the present embodiment,
Extrusion 14 is preferably the second sealing ring, owing to sealing ring has elasticity and preferable resilience force and wear-resisting, can realize and seal
Both deformation during extruding between ring, so that both have certain buffering effect when extruding, reduces between the two
The rigid abrasion existed, thus increase the service life and sealing property.Certainly, extrusion 14 also can be by wear-resisting and quality is harder
Material is made, it is possible to realize the effect of tight seal.
Preferably, valve gap 7 is sheathed with on valve rod 5, and valve gap 7 is provided with the first groove 8 near the part of valve rod 5, and first is recessed
Being provided with the 3rd sealing ring in groove 8, the ring width of the 3rd sealing ring is more than the groove width of the first groove 8.
When the valve is open, tap water can be overflowed by the gap between valve rod 5 and valve gap 7, thus waste water resource.?
In the present embodiment, in the first groove 8, be provided with the 3rd sealing ring, the ring width of the 3rd sealing ring more than the groove width of the first groove 8, i.e. the
Three sealing rings are constantly in the state being extruded so that the connection between sealing ring with valve rod 5, valve gap 7 is compared closely, increases close
Sealing property.
Preferably, between valve gap 7 and valve rod 5, be provided with multiple 3rd sealing ring, the 3rd sealing ring include V-seal ring or
O type sealing ring, low temperature stop valve also includes that the gland 9 being fixedly connected on valve gap 7, gland 9 top are pressed on the 3rd sealing ring.
In the present embodiment, being provided with multiple the 3rd stacked sealing ring in the first groove 8, the 3rd sealing ring can be that V-type is close
Seal ring or O type sealing ring, prevent tap water from leaking further, or the 3rd sealing ring can be V-seal ring and the sealing of O type
Ring, forms combination sealing secondary, considerably improves sealing property.Gland 9 top is pressed on the 3rd sealing ring, and company fixing with valve gap 7
Connect, concretely bolt connection etc..The 3rd sealing ring that gland 9 is pointed in the first groove 8 applies certain pressure so that the
Sealing property between the 3rd sealing ring and valve rod 5 and valve gap 7 in one groove 8 promotes.
Preferably, valve body 1 is provided with the second groove near the end face of valve gap 7, and valve gap 7 is provided with near the end face of valve body 1
Projection, projection is plugged in the second groove.
In the present embodiment, coordinated with mutually limiting of the second groove by projection between valve body 1 with valve gap 7 so that valve
Be not susceptible to relative movement between body 1 and valve gap 7, and then increase the kinematic accuracy of valve rod 5, final ensure valve seat 2 and flap 3 it
Between sealing stability.Further, between protruding and the second groove, be additionally provided with sealing gasket 6, can be effectively prevented tap water from
Junction between valve body 1 and valve gap 7 is overflowed, it is to avoid cause water resource waste.
Preferably, valve gap 7 is the most one-body molded with valve body 1, and sealing gasket 6 is fluoroplastics sealing gasket 6, and the 3rd sealing ring is
Fluoroplastics sealing ring.
Ordinary carbon steel cold short phenomenon under worst cold case is extremely serious, under the conditions of use cold, that burn into is severe, past
Toward housing easy fracture, especially flange neck, fracture produces leakage, and service life is short, it is impossible to meet permanently effective pumped (conveying) medium
Particular/special requirement.In the present embodiment, valve gap 7 and valve body 1 use low temperature carbon steel material, and it is applicable to the ring of 50～345 DEG C
In border, it is possible to being well adapted for cold environment, stability in use and life-span all can extend.The chemical property stabilizer pole of fluoroplastics
Etch resistant properties is the best, all can keep softness in low temperature and hot environment so that it is have service life long, good seal performance
Etc. advantage, therefore in the application, sealing gasket 6 is made with the 3rd sealing ring both preferably fluoroplastics material.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that utility model scope involved in the application, however it is not limited to the particular combination of above-mentioned technical characteristic
Technical scheme, also should contain in the case of conceiving without departing from described utility model simultaneously, by above-mentioned technical characteristic or its equivalent
Other technical scheme that feature carries out combination in any and formed.Such as features described above has with (but not limited to) disclosed herein
The technical scheme that the technical characteristic having similar functions is replaced mutually and formed.
Claims (10)
1. a low temperature stop valve, including in the middle part of be provided with the valve seat of limbers and be positioned at the flap above described limbers, its
Be characterised by, described valve seat near being provided with black box between one end of described flap and described flap, described black box bag
Including sealing member, described sealing member includes the first sealing and the second sealing, and described black box also includes for extruding described
The extrusion of the first sealing, described second sealing is used for pushing up the described extrusion of pressure.
Low temperature stop valve the most according to claim 1, it is characterised in that described first sealing includes being sheathed on described valve
The band of one end of close described valve seat on lobe, away from the one of described limbers on described second sealing and described band
End connects and is positioned at the described extrusion top away from the end face of described limbers, and described band seals with described second
The diameter of the junction in portion is the diameter of the end face of close described limbers more than on described band.
Low temperature stop valve the most according to claim 2, it is characterised in that with described second sealing on described band
Junction linearly reduces to the diameter of the end face of described limbers close on described band, and described second sealing includes
First sealing ring.
Low temperature stop valve the most according to claim 3, it is characterised in that described first sealing and the second sealing are one
Body formed.
Low temperature stop valve the most according to claim 3, it is characterised in that described extrusion includes the second sealing ring, described
Second sealing ring is fixing with described valve seat near the side of described valve seat to be connected.
6. according to the low temperature stop valve described in claim 1-5 any one, it is characterised in that valve gap sheathed with valve rod on, institute
State valve gap and be provided with the first groove near the part of described valve rod, in described first groove, be provided with the 3rd sealing ring, the described 3rd
The ring width of sealing ring is more than the groove width of described first groove.
Low temperature stop valve the most according to claim 6, it is characterised in that be provided with multiple between described valve gap and described valve rod
Described 3rd sealing ring, described 3rd sealing ring includes that V-seal ring or O type sealing ring, described low temperature stop valve also include
Being fixedly connected on the gland of described valve gap, described gland top is pressed on described 3rd sealing ring.
Low temperature stop valve the most according to claim 7, it is characterised in that valve body is provided with near the end face of described valve gap
Two grooves, described valve gap is provided with projection near the end face of described valve body, and described projection is plugged in described second groove.
Low temperature stop valve the most according to claim 8, it is characterised in that also set between described projection and described second groove
There is sealing gasket.
Low temperature stop valve the most according to claim 9, it is characterised in that described valve gap is respectively one with described valve body
Molding, described sealing gasket is fluoroplastics sealing gasket, and described 3rd sealing ring is fluoroplastics sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469124.9U CN205715716U (en) | 2016-05-20 | 2016-05-20 | Low temperature stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469124.9U CN205715716U (en) | 2016-05-20 | 2016-05-20 | Low temperature stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715716U true CN205715716U (en) | 2016-11-23 |
Family
ID=57299256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620469124.9U Withdrawn - After Issue CN205715716U (en) | 2016-05-20 | 2016-05-20 | Low temperature stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782474A (en) * | 2016-05-20 | 2016-07-20 | 海安县区域供水有限公司 | Low-temperature stop valve |
| CN109723835A (en) * | 2018-12-25 | 2019-05-07 | 兰控阀门执行器江苏有限公司 | A kind of valve actuator that anti-leak result is excellent |
-
2016
- 2016-05-20 CN CN201620469124.9U patent/CN205715716U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782474A (en) * | 2016-05-20 | 2016-07-20 | 海安县区域供水有限公司 | Low-temperature stop valve |
| CN109723835A (en) * | 2018-12-25 | 2019-05-07 | 兰控阀门执行器江苏有限公司 | A kind of valve actuator that anti-leak result is excellent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180406 |