CN208311486U - A kind of shut-off valve that spool is anti-rotational - Google Patents
A kind of shut-off valve that spool is anti-rotational Download PDFInfo
- Publication number
- CN208311486U CN208311486U CN201820433056.XU CN201820433056U CN208311486U CN 208311486 U CN208311486 U CN 208311486U CN 201820433056 U CN201820433056 U CN 201820433056U CN 208311486 U CN208311486 U CN 208311486U
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- CN
- China
- Prior art keywords
- valve
- spool
- shut
- rotational
- gland
- 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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Abstract
The utility model provides a kind of shut-off valve that spool is anti-rotational, the intracorporal valve rod of valve is protruded into including valve body, the valve deck being fixed on above valve body, across valve deck, and valve inner is set and the spool and spool gland that cooperate are installed with valve rod, the spool and spool gland form an accommodating chamber, interference part is convexly equipped on the valve rod positioned in accommodating chamber, it is additionally provided in the accommodating chamber and limiting section that interference part cooperates in valve rod circumferencial direction upper limit, Spool rotating can be effectively prevented in the utility model, improves the security performance and service life of valve.
Description
Technical field
The utility model belongs to valve field, and in particular to a kind of shut-off valve that spool is anti-rotational.
Background technique
Shut-off valve is mainly used in the truncation control field of all types of industries medium, has stroke shorter, and opening and closing speed is fast, close
It seals the advantages that reliable, therefore is widely used in all types of industries field.
Under certain conditions, after valve opening, since the pressure distribution of spool two sides is inconsistent with flow velocity, and it is situated between
Mass flow speed is very fast, and conventional design spool, which exists, surrounds the automatic rotation phenomenon of valve rod.After rotation occurs, valve rod end may cause
Face and spool gland end wear, or even situations such as rub by valve rod end face, cause spool that can not act, even result in valve mistake
Effect causes major accident to lose to system control.
In consideration of it, it is necessary to design a kind of shut-off valve for preventing Spool rotating to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of shut-off valves that spool is anti-rotational, effectively prevent Spool rotating, improve
The security performance and service life of valve.
To achieve the above object, the technical solution that the utility model specifically provides are as follows: a kind of shut-off valve that spool is anti-rotational,
The intracorporal valve rod of valve is protruded into including valve body, the valve deck being fixed on above valve body, across valve deck, is arranged in valve inner and and valve rod
The spool and spool gland of cooperation are installed, the spool and spool gland form an accommodating chamber, the valve in accommodating chamber
It is convexly equipped with interference part on bar, is additionally provided in the accommodating chamber and limiting section that interference part cooperates in valve rod circumferencial direction upper limit.
Further, the limiting section is the pin for being blended in the point layer of receiving cavity wall or being inserted on spool.
Further, the interference part is the step of the arc shape formed from valve stem end projection.
Further, it is equipped with stuffing-box above the valve deck, filler is housed between the stuffing-box and valve rod, on the filler
Side is equipped with gland, and the gland is connect with valve deck using screw.
Further, the guide plate being set on valve rod is equipped with above the valve deck.
Further, the valve deck is equipped with protrusion on the contact surface with valve body, is equipped with and the protrusion above the valve body
The groove being coupled is equipped with spirotallic gasket between the groove and protrusion.
Further, the outer wall of the spool inner wall and spool gland is using threaded connection.
Further, the valve deck and valve body are fixed using screw bolt and nut.
Further, hard alloy is welded on the valve core sealed cover and valve body sealing surface.
Further, the valve body is equipped with water outlet and water inlet and respectively perpendicular with water outlet and water inlet the
One mounting surface and the second mounting surface are equipped with mounting hole on first mounting surface and the second mounting surface.
The beneficial technical effect that the utility model obtains is as follows:
One, the limiting section in the utility model and interference part can effectively limit valve rod and rotate in accommodating chamber, prevent valve
Rod end surface and spool gland end wear, the security performance and service life of poppet.
Two, the limiting section in the utility model is the pin for being blended in the point layer of spool inner wall or being inserted on spool, knot
Structure is firm, failure not easily to fall off.
Three, stuffing-box, filler and gland is arranged in the utility model above valve deck, thus the leakproofness of poppet
Energy.
Four, the utility model is welded with hard alloy on the sealing surface of spool and valve body, and abrasion can be effectively prevented, prolong
The service life of long valve.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the anti-rotational shut-off valve of the spool of the utility model embodiment one；
Fig. 2 is the schematic diagram of the section structure in the anti-rotational shut-off valve of spool shown in FIG. 1 along line A-A；
Fig. 3 is the schematic cross-sectional view of the anti-rotational shut-off valve of the spool of the utility model embodiment two；
Fig. 4 is the schematic diagram of the section structure in the anti-rotational shut-off valve of spool shown in Fig. 3 along line B-B.
Specific embodiment
In the structure and utility model of the anti-rotational shut-off valve of the spool that the utility model is described below with reference to Fig. 1 to Fig. 4
Hold.
Embodiment one:
As depicted in figs. 1 and 2, a kind of shut-off valve that spool is anti-rotational of the utility model, including valve body 1, it is fixed on valve body 1
The valve deck 2 of top, the gland 4 for being mounted on 3 top of filler, is mounted on gland 4 filler 3 being mounted in valve deck 2
The guide plate 5 of side extend into the valve in valve body 1 after sequentially passing through guide plate 5, gland 4, filler 3 and valve deck 2 from top to bottom
Bar 6 is arranged in 1 inside of valve body and installs the spool 7 cooperated and spool gland 8 with valve rod 6 and be arranged on 7 inner wall of spool
Limiting section.The limiting section is the point layer 9 being welded on inside spool 7.
The valve body 1 is equipped with water outlet and water inlet and the first perpendicular with water outlet and water inlet respectively installation
Face and the second mounting surface.Mounting hole 11 is equipped on first mounting surface and the second mounting surface.The valve body 1 with valve deck 2
The upper surface being in contact is equipped with annular groove.
The valve deck 2 is fixed with valve body 1 using screw bolt and nut.The lower end surface of the valve deck 2 is equipped with and annular groove
The annular protrusion of cooperation is installed.Spirotallic gasket 21 is equipped between the annular groove and annular protrusion.The top of the valve deck 2 is set
There is stuffing-box.
The filler 3 is filled between stuffing-box and valve rod 6.
The gland 4 compresses filler 3.The gland 4 is fixed on valve deck 2 by screw 41.
Guide plate 5 is arranged above gland 4 and is set on outside valve rod 6, to realize the Direct Travel lifting of valve rod 6.
The end projection interference part of valve rod 6.The interference part is the step 61 of arc shape.
The spool 7 is in concave character type.The lower end surface of spool 7 and the sealing of valve body 1 cooperate, and realize the logical of the medium runner of valve body
It is disconnected.It is welded with hard alloy on the sealing surface of spool 7 and valve body 1, to reduce valve wear.The inner wall of spool 7 is equipped with and valve
The internal screw thread that core gland 8 cooperates.
Spool gland 8 is T shape, and center is equipped with the circular hole passed through for valve rod.8 outer wall of spool gland is equipped with external screw thread, with valve
Internal screw thread on 7 inner wall of core matches, and forms an accommodating chamber.The step 61 of 6 lower end of valve rod is housed in accommodating chamber.Institute
Stating step 61 and 7 inner wall of spool, there are the gaps for accommodating point layer 9.
Point layer 9 and the inner wall of spool 7 blend, and are stuck between 8 lower end surface of spool gland and the inner wall of spool, spot welding
Layer 9 is interfered using the thickness of itself with step 61, to limit the rotation of valve rod 6.
Working principle of the utility model is: have medium to flow through in valve body after valve opening, the point layer of spool inner wall can be with
It is stuck in the gap of valve rod and spool, rotate spool can not, the security performance and service life of effective poppet；On valve deck
Stuffing-box, filler and the gland being just arranged, can effectively poppet sealing performance；On the sealing surface of spool and valve body
It is welded with hard alloy, can prevent from wearing, extend the service life of valve.
Embodiment two:
As shown in Figure 3,4, the present embodiment and the structure of embodiment one are essentially identical, the difference is that only: spool 7 ' and
Limiting section is equipped in the accommodating chamber that spool gland 8 ' is formed.The limiting section is the pin 9 ' for being inserted into 7 ' inner wall of spool.The pin
61 ' the interference engagement of step of nail 9 ' and 6 ' end of valve rod, makes spool 7 ' will be unable to rotate, the security performance and use of poppet
Service life.
In conclusion the above is only the preferred embodiments of the present utility model only, the utility model should not be limited with this
Range.It is i.e. all according to simple equivalent changes and modifications made by the utility model claims book and description, all answer
Still belong in the range of the utility model patent covers.
Claims (10)
1. a kind of shut-off valve that spool is anti-rotational protrudes into valve body including valve body, the valve deck being fixed on above valve body, across valve deck
Valve rod, be arranged in valve inner and with valve rod installation cooperation spool and spool gland, it is characterised in that: the spool and valve
Core gland forms an accommodating chamber, is convexly equipped with interference part on the valve rod in the accommodating chamber, be additionally provided in the accommodating chamber with
The limiting section that interference part cooperates in valve rod circumferencial direction upper limit.
2. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: the limiting section is to be blended in receiving
The point layer of cavity wall or the pin being inserted on spool.
3. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: the interference part is from valve stem end
The step for the arc shape that projection is formed.
4. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: be equipped with filler above the valve deck
Letter is equipped with filler, is equipped with gland above the filler, the gland is adopted with valve deck between the stuffing-box and valve rod
It is connected with screw.
5. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: be equipped with and be set on above the valve deck
Guide plate on valve rod.
6. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: the valve deck is in the contact with valve body
Face is equipped with protrusion, is equipped with the groove installed with the male cooperation above the valve body, is equipped between the groove and protrusion
Spirotallic gasket.
7. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: the spool inner wall and spool gland
Outer wall using be threadedly coupled.
8. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: the valve deck and valve body use bolt
It is fixed with nut.
9. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: the valve core sealed cover and valve body are close
Hard alloy is welded on cover.
10. the anti-rotational shut-off valve of spool according to claim 1, it is characterised in that: the valve body is equipped with water outlet
First mounting surface and second mounting surface perpendicular with water outlet and water inlet with water inlet and respectively, first mounting surface
Mounting hole is equipped with on the second mounting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820433056.XU CN208311486U (en) | 2018-03-29 | 2018-03-29 | A kind of shut-off valve that spool is anti-rotational |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820433056.XU CN208311486U (en) | 2018-03-29 | 2018-03-29 | A kind of shut-off valve that spool is anti-rotational |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311486U true CN208311486U (en) | 2019-01-01 |
Family
ID=64721831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820433056.XU Expired - Fee Related CN208311486U (en) | 2018-03-29 | 2018-03-29 | A kind of shut-off valve that spool is anti-rotational |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922986A (en) * | 2022-06-21 | 2022-08-19 | 台州市广易不锈钢阀门有限公司 | A high temperature and high pressure welded shut-off valve |
-
2018
- 2018-03-29 CN CN201820433056.XU patent/CN208311486U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922986A (en) * | 2022-06-21 | 2022-08-19 | 台州市广易不锈钢阀门有限公司 | A high temperature and high pressure welded shut-off 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: 20190101 Termination date: 20210329 |