CN206290740U - A kind of pressure self-sealing stop valve - Google Patents
A kind of pressure self-sealing stop valve Download PDFInfo
- Publication number
- CN206290740U CN206290740U CN201621316408.0U CN201621316408U CN206290740U CN 206290740 U CN206290740 U CN 206290740U CN 201621316408 U CN201621316408 U CN 201621316408U CN 206290740 U CN206290740 U CN 206290740U
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- China
- Prior art keywords
- bonnet
- valve
- pressing plate
- valve rod
- nut
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Abstract
The utility model discloses a kind of pressure self-sealing stop valve, the pressing plate top is provided with hand sled, valve rod is provided with the middle of in the valve body, the valve rod runs through bonnet and pressing plate and extends to hand sled middle part top, the valve rod lower section is provided with flashboard, stuffing box is provided with inside the bonnet, and stuffing box extends to bonnet top, stuffing box between the bonnet and pressing plate is provided with hoisting nut, described filler case top is provided with gland, and gland is close to pressing plate, the valve rod of the hand sled upper end is provided with locking nut.This pressure self-sealing stop valve, compact conformation, keying property are good, highly small, easy to maintenance, and lumen uses self sealing structure, pressure is higher, and sealing is better, and wear-resisting, anti-corrosion, resistance to erosion, long service life are acted on anti-cavitation, valve body bonnet is that overall forging is formed, intensity is high, handsome in appearance, material reliability, stem surface is through superpower fine and close Wear-resistant Treatment, wear-and corrosion-resistant, opens and closes friction small, it is ensured that product is without leakage.
Description
Technical field
The utility model is related to valve technology field, specially a kind of pressure self-sealing stop valve.
Background technology
Stop valve is only applicable to standard-sized sheet and fully closed, does not allow to make adjustments and throttle.Stop valve belongs to forced seal formula valve,
So in valve closing, it is necessary to apply pressure to flap, do not leaked with forced seal face.When medium enters valve by flap lower section
When interior, the resistance overcome required for operating physical force is the friction and the thrust as produced by the pressure of medium of valve rod and filler, is closed
The power of valve is bigger than the power of valve opening door, so the diameter of valve rod is big, the failure of valve rod bending can otherwise occur.
Utility model content
The purpose of this utility model is to provide a kind of pressure self-sealing stop valve, to solve to be proposed in above-mentioned background technology
Problem.
To achieve the above object, the utility model provides following technical scheme：A kind of pressure self-sealing stop valve, including valve
Body, the valve body top is provided with bonnet, and bonnet is provided with the first pad with valve body junction, and the bonnet top is provided with pressing plate,
The pressing plate top is provided with hand sled, and middle in the valve body to be provided with valve rod, the valve rod runs through bonnet and pressing plate and extends to hand
Sled middle part top, the valve rod lower section is provided with flashboard, and stuffing box is provided with inside the bonnet, and stuffing box is extended on bonnet
Side, described filler case inner upper end is provided with filler, and filler is close to stem side wall, and the bonnet and pressing plate pass through screw bolt and nut
It is attached, the stuffing box between the bonnet and pressing plate is provided with hoisting nut, described filler case top is provided with gland, and pressure
Be locked pressing plate, and the valve rod above the pressing plate is provided with valve stem nut, and valve stem nut is located at the lower section of hand sled, the hand sled
The valve rod of upper end is provided with locking nut.
Preferably, the upper surface of the hand sled is provided with nameplate.
Preferably, the first pad lower section is provided with sealing ring.
Preferably, the hoisting nut and stuffing box contact surface are provided with the second pad.
Preferably, size of the size of the valve stem nut more than locking nut.
Compared with prior art, the beneficial effects of the utility model are：This pressure self-sealing stop valve, compact conformation, opens
Closing property is good, highly small, easy to maintenance, and lumen uses self sealing structure, and pressure is higher, and sealing is better, with anti-cavitation effect
Wear-resisting, anti-corrosion, resistance to erosion, long service life, valve body bonnet are that overall forging is formed, and intensity is high, handsome in appearance, material reliability,
Stem surface opens and closes friction small, it is ensured that product is without leakage through superpower fine and close Wear-resistant Treatment, wear-and corrosion-resistant.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure：1 valve body, 2 flashboards, 3 valve rods, 4 stuffing boxes, 5 sealing rings, 6 first pads, 7 bonnets, 8 bolts, 9 second pads
Piece, 10 fillers, 11 hoisting nuts, 12 glands, 13 pressing plates, 14 nuts, 15 valve stem nuts, 16 nameplates, 17 locking nuts, 18 hands
Sled.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1 is referred to, the utility model provides a kind of technical scheme：A kind of pressure self-sealing stop valve, including valve body 1,
The top of the valve body 1 is provided with bonnet 7, and bonnet 7 is provided with the first pad 6 with the junction of valve body 1, and the top of the bonnet 7 is provided with pressure
Plate 13, the top of the pressing plate 13 is provided with hand sled 18, and middle in the valve body 1 to be provided with valve rod 3, the valve rod 3 is through bonnet 7 and pressure
Plate 13 and the middle part top of hand sled 18 is extended to, the lower section of the valve rod 3 is provided with flashboard 2, stuffing box 4 is provided with inside the bonnet 7, and
Stuffing box 4 extends to the top of bonnet 7, and the inner upper end of described filler case 4 is provided with filler 10, and filler 10 is close to the side wall of valve rod 3, institute
State bonnet 7 and pressing plate 13 to be attached by bolt 8 and nut 14, the stuffing box 4 between the bonnet 7 and pressing plate 13 is provided with
Hoisting nut 11, the top of described filler case 4 is provided with gland 12, and gland 12 is close to pressing plate 13, the valve rod 3 of the top of the pressing plate 13
Valve stem nut 15 is provided with, and valve stem nut 15 is located at the lower section of hand sled 18, the valve rod 3 that the hand prizes 18 upper ends is provided with locking
Nut 17, the upper surface of the hand sled 18 is provided with nameplate 16, and the lower section of first pad 6 is provided with sealing ring 5, the hoisting nut
11 and the contact surface of stuffing box 4 be provided with the second pad 9, the size of the size more than locking nut 17 of the valve stem nut 15.
Operation principle：The opening and closing element of stop valve is the flashboard 2 of stopper, and sealing surface is in the conical surface, flashboard 2 along fluid center line
It is for linear motion.The forms of motion of valve rod 3 is from top to bottom.When stop valve is opened, the Lift of flashboard 2 is nominal diameter
When 25%~30%, flow has reached maximum, represents that valve has reached fully open position.So the fully open position of stop valve, should be by flashboard 2
Stroke determine.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case where principle of the present utility model and spirit is not departed from, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of pressure self-sealing stop valve, including valve body（1）, it is characterised in that：The valve body（1）Top is provided with bonnet（7）,
And bonnet（7）With valve body（1）Junction is provided with the first pad（6）, the bonnet（7）Top is provided with pressing plate（13）, the pressing plate
（13）Top is provided with hand sled（18）, the valve body（1）Interior centre is provided with valve rod（3）, the valve rod（3）Through bonnet（7）And pressure
Plate（13）And extend to hand sled（18）Middle part top, the valve rod（3）Lower section is provided with flashboard（2）, the bonnet（7）Inside is provided with
Stuffing box（4）, and stuffing box（4）Extend to bonnet（7）Top, described filler case（4）Inner upper end is provided with filler（10）, and fill out
Material（10）It is close to valve rod（3）Side wall, the bonnet（7）And pressing plate（13）By bolt（8）And nut（14）It is attached, it is described
Bonnet（7）And pressing plate（13）Between stuffing box（4）It is provided with hoisting nut（11）, described filler case（4）Top is provided with gland
（12）, and gland（12）It is close to pressing plate（13）, the pressing plate（13）The valve rod of top（3）It is provided with valve stem nut（15）, and valve
Stem nut（15）Positioned at hand sled（18）Lower section, hand sled（18）The valve rod of upper end（3）It is provided with locking nut（17）.
2. a kind of pressure self-sealing stop valve according to claim 1, it is characterised in that：The hand sled（18）Upper surface
It is provided with nameplate（16）.
3. a kind of pressure self-sealing stop valve according to claim 1, it is characterised in that：First pad（6）Lower section
It is provided with sealing ring（5）.
4. a kind of pressure self-sealing stop valve according to claim 1, it is characterised in that：The hoisting nut（11）With fill out
Hopper（4）Contact surface is provided with the second pad（9）.
5. a kind of pressure self-sealing stop valve according to claim 1, it is characterised in that：The valve stem nut（15）Chi
It is very little more than locking nut（17）Size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316408.0U CN206290740U (en) | 2016-12-02 | 2016-12-02 | A kind of pressure self-sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316408.0U CN206290740U (en) | 2016-12-02 | 2016-12-02 | A kind of pressure self-sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290740U true CN206290740U (en) | 2017-06-30 |
Family
ID=59097919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621316408.0U Active CN206290740U (en) | 2016-12-02 | 2016-12-02 | A kind of pressure self-sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290740U (en) |
-
2016
- 2016-12-02 CN CN201621316408.0U patent/CN206290740U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |