CN207830648U - A kind of shut-off valve - Google Patents
A kind of shut-off valve Download PDFInfo
- Publication number
- CN207830648U CN207830648U CN201820223445.XU CN201820223445U CN207830648U CN 207830648 U CN207830648 U CN 207830648U CN 201820223445 U CN201820223445 U CN 201820223445U CN 207830648 U CN207830648 U CN 207830648U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- swivel nut
- deck
- shut
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 241000237858 Gastropoda Species 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model provides a kind of shut-off valve, belongs to technical field of valve manufacturing.It solves the problems such as existing shut-off valve non-return efficiency is low.This shut-off valve includes valve rod, spool, valve deck and valve body, the outer end that valve rod stretches out valve deck is embedded with the opening gasket that bottom contacts at valve deck top surface, there is a circle to protrude in the middle part of valve rod and contact at the shoulder block of valve deck, valve rod inner end outer wall thread is connected with tubular swivel nut, swivel nut outer wall and valve deck inner wall are circumferentially fixed, the bottom end of swivel nut has the pilot hole passed through for spool upper end, still has when the top of swivel nut contacts at shoulder block, between swivel nut bottom end and valve deck bottom end and sets water cavity.The utility model has many advantages, such as that easy to process, non-return is quick.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, is related to a kind of shut-off valve.
Background technology
Shut-off valve refer to opening and closing element by valve rod drive and along the valve that valve seat center line moves back and forth, due to such valve
It is relatively short that valve rod is turned on and off stroke, and has very reliable cutting function, so being highly suitable for cutting off or adjust
Amount of restriction.
Such as Chinese patent literature data discloses a kind of unidirectional stop valve [application number：201520449321.X；It authorizes public
Announcement number：CN204704440U] comprising valve body, valve seat, flap, valve deck and handwheel, valve body is interior to be equipped with intake channel and exports logical
Road, valve seat are set between intake channel and exit passageway, and flap is correspondingly arranged with valve seat, and one end of valve rod is fixed with handwheel to be connected
It connects, the other end is flexibly connected with flap, and valve deck is socketed with valve rod, and valve deck and valve rod are equipped with the screw thread to match, are set on flap
There is axis pin, sliding slot corresponding with axis pin is offered on valve rod, axis pin can always be slided in sliding slot, and axis pin is matched with sliding slot sealing
It closes.
Above-mentioned unidirectional stop valve has the function of preventing medium from flowing backwards, and realizes medium one-way flow, but valve rod
Length is longer, and processing is inconvenient, flap upper and lower displacement, flap can be caused to touch valve rod when medium enters when pressure more frequently changes
The pressure of noise or even abruptly increase, which can occur, to make flap quickly touch stem bottom and damage, and flap move down it is close
The process for being encapsulated in valve seat is still not quick enough, and in addition after prolonged use, the bottom margin of gasket can turn down gasket outward,
Influence leakproofness.
Invention content
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, is provided a kind of easy to process, only
Return quick and the operation is stable shut-off valve.
The purpose of this utility model can be realized by following technical proposal：A kind of shut-off valve, including valve rod, spool, valve
Lid and valve body, the valve body have the valve seat for being equipped in inlet and outlet and valve body and being communicated in inlet and outlet,
The valve body is threadedly coupled with valve deck, and the outer end of the valve rod is pierced by valve deck setting and is equipped at least between valve rod and valve deck
The inner end of two sealing rings, the valve rod axially offers straight hole, and the upper end of the spool is in described in direct rod shape and insertion
Straight hole in, it is in inverted boss-shaped that spool outer wall, which has the bulge loop of a circle radially protruding and the bottom end of spool, and valve core upper sleeve sets
There is the gasket between bulge loop and spool bottom end, which is characterized in that the outer end that the valve rod stretches out valve deck is embedded with bottom
Portion contacts at the opening gasket of valve deck top surface, and there is a circle to protrude in the middle part of the valve rod and contact at the shoulder block of valve deck, described
Valve rod inner end outer wall thread be connected with tubular swivel nut, the swivel nut outer wall and valve deck inner wall are circumferentially fixed, described
The bottom end of swivel nut has the pilot hole that is passed through for spool upper end, when the top of the swivel nut contacts at shoulder block described in swivel nut
Still have between bottom end and valve deck bottom end and sets water cavity.
This shut-off valve can shorten the axial length of valve rod by the setting of swivel nut so that valve rod is easy to process and processes
Precision is high；This shut-off valve is in use, spool makes gasket with the trend for being sealed in valve seat, pass through always under the effect of gravity
The rotation band movable snail sleeve of valve rod moves up and down, and to change swivel nut bottom end to the distance of bulge loop, plays cut-out or adjusts flow and make
With when swivel nut bottom end is to, there are when spacing, medium overcomes the gravity of spool, and gasket is open-top, and medium passes through valve between bulge loop
Seat is simultaneously flowed out from water outlet, and when there is medium back flow, medium acts on bulge loop and spool is moved down, and water is set in medium entrance
The tension between spool upper end and straight hole can be destroyed in chamber, spool moves down smooth, plays the role of quick non-return, pilot hole and straight hole
Collective effect ensure that the stability of spool movement；When bottom end of the valve rod with movable snail sleeve is pressed in bulge loop, spool cannot on
It moves, gasket is sealed in valve seat always, to play the role of cut-off.
In a kind of above-mentioned shut-off valve, the bottom surface vulcanization of the swivel nut is fixed with rubber washer.Rubber washer plays
Vibration and noise reducing act on, when medium enter pressure occur frequently variation when, avoid the bulge loop of spool frequently touch swivel nut bottom and
It makes a noise, also avoids the two clashing and breaking.
In a kind of above-mentioned shut-off valve, the upper end of the spool is equipped with several mistakes extended radially through at bulge loop
Water hole, the top axial of the spool are equipped with the limbers for being communicated in water hole.When medium back flow, medium by water hole into
Enter limbers, enter back into straight hole, pressure medium directly acts at the top of spool upper end so that spool moves down quickly, and raising stops
Return efficiency.
In a kind of above-mentioned shut-off valve, the gasket is fixed with the stainless steel sleeve for coating its outer ring.Stainless steel
Set plays styling to gasket, avoids the problem that gasket is turned up using rear bottom surface for a long time, ensure that gasket and valve
Leakproofness between seat.
In a kind of above-mentioned shut-off valve, the radial section of the outer wall of the swivel nut is in regular hexagon shape, the valve
Lid inner wall be matched with swivel nut outer wall regular hexagon it is poroid.The circumferentially fixed of swivel nut and valve deck, and swivel nut has been achieved
It is steady relative to valve deck axial movement.
Compared with prior art, this shut-off valve makes valve rod easy to process and high precision machining, and non-return is efficient, work
It is good to make stability, low noise, service life is long.
Description of the drawings
Fig. 1 is the schematic structural cross-sectional view of this shut-off valve.
In figure, 1, valve rod；2, spool；21, bulge loop；22, water hole；23, limbers；3, valve deck；4, valve body；41, it intakes
Mouthful；42, water outlet；43, valve seat；5, sealing ring；6, straight hole；7, gasket；8, be open gasket；9, shoulder block；10, swivel nut；101、
Pilot hole；11, water cavity is set；12, rubber washer；13, stainless steel sleeve.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this shut-off valve, including valve rod 1, spool 2, valve deck 3 and valve body 4, valve body 4 have water inlet 41 and go out
The valve seat 43 for being communicated in water inlet 41 and water outlet 42 is equipped in the mouth of a river 42 and valve body 4, valve body 4 is threadedly coupled with valve deck 3, valve rod
1 outer end is pierced by the setting of valve deck 3 and is set between valve rod 1 and valve deck 3 there are two sealing ring 5, and the inner end of valve rod 1 axially offers directly
The upper end in hole 6, spool 2 in direct rod shape and is inserted into the straight hole 6, and 2 outer wall of spool has the bulge loop 21 of a circle radially protruding
And the bottom end of spool 2 is in inverted boss-shaped, the gasket 7 being arranged on spool 2 between 2 bottom end of bulge loop 21 and spool,
The outer end that valve rod 1 stretches out valve deck 3 is embedded with the opening gasket 8 that bottom contacts at 3 top surface of valve deck, and 1 middle part of valve rod has a circle convex
Go out and contact at the shoulder block 9 of valve deck 3,1 inner end outer wall thread of valve rod is connected with tubular swivel nut 10,10 outer wall of swivel nut and valve deck
3 inner walls are circumferentially fixed, and the radial section of the outer wall of swivel nut 10 is in regular hexagon shape in the present embodiment, and 3 inner wall of valve deck is to be matched with
The regular hexagon of 10 outer wall of swivel nut is poroid, and the bottom end of swivel nut 10 has the pilot hole 101 passed through for 2 upper end of spool, when swivel nut 10
Top still have when contacting at shoulder block 9, between 3 bottom end of 10 bottom end of swivel nut and valve deck and set water cavity 11.
This shut-off valve can shorten the axial length of valve rod 1 by the setting of swivel nut 10 so that valve rod 1 it is easy to process and
High precision machining；This shut-off valve is in use, spool 2 makes gasket 7 has always to be sealed in valve seat 43 under the effect of gravity
Trend is moved up and down by the rotation band movable snail sleeve 10 of valve rod 1, to change 10 bottom end of swivel nut to the distance of bulge loop 21, is played
Cut-out adjusts flow effect, when 10 bottom end of swivel nut is to, there are when spacing, medium overcomes the gravity of spool 2 between bulge loop 21, general
Gasket 7 is open-top, and medium is flowed out by valve seat 43 and from water outlet 42, and when there is medium back flow, medium acts on bulge loop 21
So that spool 2 moves down, and medium enters and sets the tension that can be destroyed in water cavity 11 between 2 upper end of spool and straight hole 6, under spool 2
It moves smooth, plays the role of quick non-return, 6 collective effect of pilot hole 101 and straight hole ensure that the stability that spool 2 moves；Work as valve
When bottom end of the bar 1 with movable snail sleeve 10 is pressed in bulge loop 21, spool 2 cannot move up, and gasket 7 is sealed in valve seat 43 always, to
Play the role of cut-off.
It further describes in detail, the bottom surface vulcanization of swivel nut 10 is fixed with rubber washer 12, and rubber washer 12 plays vibration and noise reducing work
With, when medium enter pressure occur frequently variation when, avoid the bulge loop 21 of spool 2 from frequently touching the bottom of swivel nut 10 and send out and make an uproar
Sound also avoids the two clashing and breaking.The upper end of spool 2 is set at bulge loop 21 there are four the water hole 22 that extends radially through, spool 2 it is upper
End is axially arranged with the limbers 23 for being communicated in water hole 22, and limbers 23 is coaxially disposed with 2 upper end of spool and the hole of limbers 23
Diameter is the half of 2 upper end diameter of spool, and such water of crossing is quick, and the aperture of limbers 23 is 2 upper end of spool in the present embodiment
The half of diameter, when medium back flow, medium enters limbers 23 by water hole 22, enters back into straight hole 6, pressure medium
It directly acts at the top of 2 upper end of spool so that spool 2 moves down quickly, improves non-return efficiency.Gasket 7 is fixed with its outer ring
The stainless steel sleeve 13 of cladding, stainless steel sleeve 13 play styling to gasket 7, and 7 long-time of gasket is avoided to use rear bottom surface
The problem of turning up ensure that the leakproofness between gasket 7 and valve seat 43.
The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiment be only the spirit of the present invention is given an example.The utility model technical field
Technical staff can make various modifications or additions to the described embodiments or substitute by a similar method, but
Without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (5)
1. a kind of shut-off valve, including valve rod（1）, spool（2）, valve deck（3）And valve body（4）, the valve body（4）With water inlet
（41）And water outlet（42）And valve body（4）Interior be equipped with is communicated in water inlet（41）And water outlet（42）Valve seat（43）, described
Valve body（4）With valve deck（3）It is threadedly coupled, the valve rod（1）Outer end be pierced by valve deck（3）Setting and valve rod（1）And valve deck（3）
Between be equipped at least two sealing rings（5）, the valve rod（1）Inner end axially offer straight hole（6）, the spool（2）
Upper end in direct rod shape and be inserted into the straight hole（6）It is interior, spool（2）Outer wall has the bulge loop of a circle radially protruding（21）And valve
Core（2）Bottom end be in inverted boss-shaped, spool（2）On be arranged with positioned at bulge loop（21）And spool（2）Sealing between bottom end
Pad（7）, which is characterized in that the valve rod（1）Stretch out valve deck（3）Outer end be embedded with bottom and contact at valve deck（3）Top surface
Be open gasket（8）, the valve rod（1）There is a circle to protrude and contact at valve deck at middle part（3）Shoulder block（9）, the valve rod
（1）Inner end outer wall thread is connected with tubular swivel nut（10）, the swivel nut（10）Outer wall and valve deck（3）Inner wall is circumferentially solid
Fixed, described swivel nut（10）Bottom end have for spool（2）The pilot hole that upper end passes through（101）, when the swivel nut（10）'s
Top contacts at shoulder block（9）The swivel nut of Shi Suoshu（10）Bottom end and valve deck（3）Still have between bottom end and sets water cavity（11）.
2. a kind of shut-off valve according to claim 1, which is characterized in that the swivel nut（10）Bottom surface vulcanization be fixed with
Rubber washer（12）.
3. a kind of shut-off valve according to claim 2, which is characterized in that the spool（2）Upper end close to bulge loop
（21）Place is equipped with several water holes extended radially through（22）, the spool（2）Top axial be equipped be communicated in water hole
（22）Limbers（23）.
4. a kind of shut-off valve according to claim 3, which is characterized in that the gasket（7）It is fixed with its outer ring
The stainless steel sleeve of cladding（13）.
5. a kind of shut-off valve according to claim 4, which is characterized in that the swivel nut（10）Outer wall radial section
In regular hexagon shape, the valve deck（3）Inner wall is to be matched with swivel nut（10）The regular hexagon of outer wall is poroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223445.XU CN207830648U (en) | 2018-02-08 | 2018-02-08 | A kind of shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223445.XU CN207830648U (en) | 2018-02-08 | 2018-02-08 | A kind of shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830648U true CN207830648U (en) | 2018-09-07 |
Family
ID=63397558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820223445.XU Expired - Fee Related CN207830648U (en) | 2018-02-08 | 2018-02-08 | A kind of shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830648U (en) |
-
2018
- 2018-02-08 CN CN201820223445.XU patent/CN207830648U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317600 Yuhuan Science and Technology Generation Functional Area, Taizhou City, Zhejiang Province (Hu Xinduan) Patentee after: Yuhuan Dadi Copper Co.,Ltd. Address before: 317600 East-West Village, Chumen Town, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: YUHUAN DADI COPPER INDUSTRY Co.,Ltd. |
|
| 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: 20180907 |