CN207437797U - A kind of single valve clack shut-off valve - Google Patents
A kind of single valve clack shut-off valve Download PDFInfo
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- CN207437797U CN207437797U CN201721351820.0U CN201721351820U CN207437797U CN 207437797 U CN207437797 U CN 207437797U CN 201721351820 U CN201721351820 U CN 201721351820U CN 207437797 U CN207437797 U CN 207437797U
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- valve
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- shut
- clack
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Abstract
The utility model discloses a kind of single valve clack shut-off valves, including valve body, valve rod, valve deck and stent, stent is fixedly connected with valve deck, valve deck and valve body are detachably fixed connection, it is respectively cooperating with being provided with handwheel and flap at the top and bottom of valve rod, valve seat is equipped in valve body, the valve chamber of valve body is divided into admission chamber and goes out sap cavity by valve seat, flap is arranged in admission chamber, sealing pair is formed with valve seat, airtight and watertight padding is equipped between valve rod and valve deck, airtight and watertight padding compresses installation by the gland for being arranged on valve deck top and the seal receptacle for being arranged on valve deck bottom, seal receptacle bottom is equipped with caoutchouc elasticity washer.The utility model provides the excellent single valve clack shut-off valve of sealing performance between sealing performance between a kind of sealing performance between flap and valve body, valve deck and valve body, valve deck and valve rod.
Description
Technical field
The utility model is related to a kind of shut-off valve more particularly to a kind of single valve clack shut-off valves.
Background technology
Shut-off valve refers to closure member（Flap）The valve moved along valve seat center line, flap make straight line along the center line of valve seat
Movement, due to the valve rod of such valve, to be turned on and off stroke relatively short, and with very reliable cutting function, and by
In the variation of valve seat port and the stroke direct proportionality of flap, it is very suitable for the adjusting to flow, therefore, this type
The shutoff valve that shuts off be highly suitable as cutting off or the use that adjusts and throttle.
At present, shut-off valve generally includes valve body, flap and for flap to be driven to do the valve rod to move along a straight line up and down, valve body
Interior to be equipped with the isolation inner wall with opening, isolation inner wall both sides respectively constitute snout cavity and outlet plenum, and snout cavity and outlet plenum lead to
It crosses opening to be conducted, valve rod includes being placed in the built-in portion of valve inner and the external portion being placed on outside valve body, in the valve body
The other end for putting relatively external portion of portion is connected with flap, and the flap is placed at the conducting of snout cavity and outlet plenum.
The sealing performance of shut-off valve is to judge the major criterion of shut-off valve quality.Mainly by the sealing between flap and valve body
The sealing performance between sealing performance, valve deck and valve rod between performance, valve deck and valve body determines total leakproofness of shut-off valve
Energy.
In Chinese patent literature disclosed " shut-off valve ", notification number CN102588617A, the day for announcing is 2012 years 7
The moon 18, this application discloses a kind of shut-off valves, are made of valve body, valve rod, flap, handwheel, and valve body is to be linked to be one with valve deck
The construction of body is being equipped with installation passage mouth from water inlet plate, internal and external threads pipe is equipped with below handwheel；The side end of the flap is equipped with
Convex block is lifted, which is located in two groups of fluctuating orbits that valve interior wall is equipped with respectively, and the flap sealed end is equipped with anti-
Water rubber；The valve body in the packing groove at valve rod lifting position with being equipped with O-ring seal and filler.The shortcoming of the invention
Be flap using plane sealing structure, the open and close power of valve is larger, and is easily scratched at sealing surface, causes sealing surface portion
It is revealed in generating position；To ensure the sealing performance between valve deck and valve body, valve body and valve deck use Construction integration, largely
Increase the manufacture difficulty of valve body and the assembly difficulty of shut-off valve.
Utility model content
The utility model in order to overcome problem described above, provide a kind of sealing performance between flap and valve body,
The excellent single valve clack shut-off valve of the sealing performance between sealing performance, valve deck and valve rod between valve deck and valve body.
To achieve these goals, the utility model uses following technical scheme：
A kind of single valve clack shut-off valve, including valve body, valve rod, valve deck and stent, stent is fixedly connected with valve deck, valve deck and valve
Body is detachably fixed connection, is respectively cooperating with being provided with handwheel and flap at the top and bottom of valve rod, valve seat is equipped in the valve body,
The valve chamber of valve body is divided into admission chamber and goes out sap cavity by the valve seat, and the flap is arranged in admission chamber, with the valve seat structure
Into sealing pair, airtight and watertight padding is equipped between the valve rod and valve deck, the airtight and watertight padding is by being arranged on filling out for the valve deck top
Material gland and the seal receptacle compression installation for being arranged on valve deck bottom, the seal receptacle bottom is equipped with caoutchouc elasticity washer.
Valve flap contacts caoutchouc elasticity washer, caoutchouc elasticity washer and seal receptacle are moved to when shut-off valve is opened completely, on valve rod
Valve deck bottom is blocked, is effectively prevented from valve rod leakage.
As a kind of optimal technical scheme of the utility model, wound gasket is equipped at the fixing seal of the valve body and valve deck
Piece improves the sealing performance at the fixing seal of valve body and valve deck.
As a kind of optimal technical scheme of the utility model, the flap includes flap main body and cake cap, the flap
A card slot is formed between main body and cake cap, the lower end of the valve rod is fastened in the card slot, the valve rod and the flap main body
Contact surface be spherical.
As a kind of optimal technical scheme of the utility model, the flap is taper valve, and the bottom of the flap is set
There is arc guide face.Flap is changed to conical surface seal with valve seat by conventional flat seal, and required opening and closing power reduces.
As a kind of optimal technical scheme of the utility model, connected between the valve body and valve deck using stud and nut
It connects.
As a kind of optimal technical scheme of the utility model, filler pressure is equipped between the gland and airtight and watertight padding
Set.
As a kind of optimal technical scheme of the utility model, using split pin, spiral shell between the gland and valve deck
Screw bolt and nut connects.
The advantageous effect that the utility model is reached compared with prior art is：
1st, the sealing performance between flap and valve body is effectively improved：Conical surface seal is bigger than the seal pressure of flat seal, close
Sealing property is more preferably；
2nd, the sealing performance between valve deck and valve body is effectively improved：Wound gasket is equipped at the fixing seal of valve body and valve deck
Piece improves the sealing performance at the fixing seal of valve body and valve deck；
3rd, the sealing performance between valve deck and valve rod is effectively improved：Flap is moved to when shut-off valve is opened completely, on valve rod to connect
Caoutchouc elasticity washer is touched, caoutchouc elasticity washer and seal receptacle block valve deck bottom, effectively prevent from valve rod leakage.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：Valve body 1, valve rod 2, valve deck 3, stent 4, handwheel 5, flap 6, flap main body 6.1, cake cap 6.2, valve seat 7, into
Sap cavity 8 goes out sap cavity 9, airtight and watertight padding 10, gland 11, seal receptacle 12, filler pressing sleeve 13, caoutchouc elasticity washer 14, wound gasket
Piece 15.
Specific embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
Embodiment is selected to be only used for describing and explaining the present invention, is not used to limit the utility model.
As shown in Figure 1, a kind of single valve clack shut-off valve, including valve body 1, valve rod 2, valve deck 3 and stent 4, stent 4 and valve deck 3
It is fixedly connected, is connected between valve body 1 and valve deck 3 using stud and nut.The top and bottom of valve rod 2 are respectively cooperating with being provided with hand
Wheel 5 and flap 6, valve body 1 is interior to be equipped with valve seat 7, and the valve chamber of valve body 1 is divided into admission chamber 8 and goes out sap cavity 9 by valve seat 7, and flap 6 is set
It puts in admission chamber 8, sealing pair is formed with valve seat 7.
Airtight and watertight padding 10 is equipped between valve rod 1 and valve deck 3, airtight and watertight padding 10 is by being arranged on the gland on 3 top of valve deck
11 compress installation with the seal receptacle 12 for being arranged on 3 bottom of valve deck, and filler pressing sleeve is equipped between gland 11 and airtight and watertight padding 10
13, it is connected between gland 12 and valve deck 3 using split pin, screw bolt and nut.12 bottom of seal receptacle is equipped with rubber mat
Circle 14.
Spirotallic gasket 15 is equipped at the fixing seal of valve body 1 and valve deck 3.
Flap 6 includes flap main body 6.1 and cake cap 6.2, and a card slot, valve rod 2 are formed between flap main body 6.1 and cake cap 6.2
Lower end be fastened in card slot, the contact surface of valve rod 2 and flap main body 6.1 is spherical.Flap 6 is taper valve, flap 6
Bottom is equipped with arc guide face.
Finally it should be noted that：The above is only the preferred embodiment of the utility model only, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical solution recorded in foregoing embodiments or to which part technical characteristic
Carry out equivalent substitution.Within the spirit and principle of the utility model, any modifications, equivalent replacements and improvements are made,
It should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of single valve clack shut-off valve, including valve body, valve rod, valve deck and stent, stent is fixedly connected with valve deck, valve deck and valve body
Connection is detachably fixed, is respectively cooperating with being provided with handwheel and flap at the top and bottom of valve rod, valve seat, institute is equipped in the valve body
It states valve seat the valve chamber of valve body is divided into admission chamber and goes out sap cavity, the flap is arranged in admission chamber, is formed with the valve seat
Sealing pair, which is characterized in that airtight and watertight padding is equipped between the valve rod and valve deck, the airtight and watertight padding is by being arranged on the valve deck
The gland on top and the seal receptacle compression installation for being arranged on valve deck bottom, the seal receptacle bottom is equipped with rubber mat
Circle.
A kind of 2. single valve clack shut-off valve according to claim 1, which is characterized in that the fixing seal of the valve body and valve deck
Place is equipped with spirotallic gasket.
3. a kind of single valve clack shut-off valve according to claim 1, which is characterized in that the flap includes flap main body and cake
Cap forms a card slot between the flap main body and cake cap, the lower end of the valve rod is fastened in the card slot, the valve rod and institute
The contact surface for stating flap main body is spherical.
4. a kind of single valve clack shut-off valve according to claim 1, which is characterized in that the flap is taper valve, described
The bottom of flap is equipped with arc guide face.
5. a kind of single valve clack shut-off valve according to claim 1, which is characterized in that spiral shell is used between the valve body and valve deck
Column is connected with nut.
6. a kind of single valve clack shut-off valve according to claim 1, which is characterized in that the gland and airtight and watertight padding it
Between be equipped with filler pressing sleeve.
7. a kind of single valve clack shut-off valve according to claim 6, which is characterized in that adopted between the gland and valve deck
It is connected with split pin, screw bolt and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351820.0U CN207437797U (en) | 2017-10-19 | 2017-10-19 | A kind of single valve clack shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351820.0U CN207437797U (en) | 2017-10-19 | 2017-10-19 | A kind of single valve clack shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437797U true CN207437797U (en) | 2018-06-01 |
Family
ID=62293399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721351820.0U Active CN207437797U (en) | 2017-10-19 | 2017-10-19 | A kind of single valve clack shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116025720A (en) * | 2023-03-27 | 2023-04-28 | 中鸿阀门股份有限公司 | Elastic sealing stop valve |
-
2017
- 2017-10-19 CN CN201721351820.0U patent/CN207437797U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116025720A (en) * | 2023-03-27 | 2023-04-28 | 中鸿阀门股份有限公司 | Elastic sealing stop valve |
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| GR01 | Patent grant |