CN206668979U - A kind of stop valve - Google Patents
A kind of stop valve Download PDFInfo
- Publication number
- CN206668979U CN206668979U CN201720365023.1U CN201720365023U CN206668979U CN 206668979 U CN206668979 U CN 206668979U CN 201720365023 U CN201720365023 U CN 201720365023U CN 206668979 U CN206668979 U CN 206668979U
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- China
- Prior art keywords
- valve rod
- valve
- handwheel
- hole
- operation handwheel
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Abstract
It the utility model is related to valve technology field, more particularly to a kind of stop valve, including valve body, valve rod, flap, support, operate handwheel and position-limit mechanism, the valve rod bottom is stretched into valve body and connects flap, the operation handwheel is spacing in the axial direction on support and can be circumferentially rotated, the position-limit mechanism makes the circumferentially spacing axial direction of valve rod can upper and lower displacement, the operation handwheel and valve rod are threaded engagement, also include locking device, there is the locking device attended operation handwheel to form circumferential spacing latched position to operation handwheel with valve rod, and make operation handwheel with respect to the rotatable unlocked position of valve rod.Rotate handwheel, it is target flow to make valve rod drive flap to move up and down stop valve, because limited position mechanism, valve rod can only be moved up and down and can not rotated, it is circumferential spacing so as to be formed to operation handwheel by locking device attended operation handwheel and valve rod, so manipulator is taken turns locking can not rotate, so as to fix the position of valve rod and flap, the flow that stop valve can pass through is fixed.
Description
Technical field
It the utility model is related to valve technology field, and in particular to a kind of stop valve.
Background technology
Stop valve is also known as pipe valve valve, belongs to forced seal formula valve, and stop valve is widely used in electric power, waterpower, chemical industry, refining
The industries such as oil, metallurgy.Existing stop valve is generally made up of valve body, valve rod, flap, support, operation handwheel, by turning during work
Dynamic operation handwheel makes valve rod upper and lower displacement, drives flap displacement to be turned on and off stop valve.For fixed valve, flap
Position determine the uninterrupted of valve, the position of flap is adjusted by rotating operation handwheel can control flow.When it is determined that
During the flow of valve, handwheel is not rotated further by, now, impact of the medium to valve rod and flap, which may result in flap displacement, makes stream
Amount changes, and operates handwheel in addition and is also possible to maloperation and is rotated making flow change, so, the flow of valve is very
It is difficult securing.
The content of the invention
The utility model is in view of the above-mentioned problems, provide a kind of stop valve.
Technical solution adopted in the utility model is as follows：A kind of stop valve, including valve body, valve rod, flap, support, behaviour
Make handwheel and position-limit mechanism, the valve rod bottom is stretched into valve body and connects flap, and the operation handwheel limits in the axial direction
Position on support and can circumferentially rotate, the position-limit mechanism make the circumferentially spacing axial direction of valve rod can upper and lower displacement, the operation handwheel
It is threaded engagement with valve rod, in addition to locking device, the locking device have attended operation handwheel with valve rod to operating handwheel
Circumferential spacing latched position is formed, and makes operation handwheel with respect to the rotatable unlocked position of valve rod.
The operation handwheel upper end is connected with limited block, and the limited block circumferentially links with operation handwheel, the locking dress
Put including lock pin, the limited block is provided with the first through hole being adapted to the lock pin, and it is logical that the valve rod is provided with corresponding second
Hole, there is the lock pin insertion first through hole and the second through hole to form circumferential spacing latched position to operation handwheel, and insert
Entering first through hole or the second through hole or being not inserted into makes operation handwheel with respect to the rotatable unlocked position of valve rod.
The first through hole is bar-shaped trough, or second through hole is bar-shaped trough.
The first through hole is bar-shaped trough.
The bar-shaped trough is even number, and is set around axle etc. point.
One end of the lock pin is connected by chain with limited block.
The operation handwheel includes handwheel, and valve stem nut, the valve stem nut and the handwheel are provided with inside the handwheel
Circumferential linkage, the support are provided with groove, and the valve stem nut is provided with extension, the extending area in groove, and
Spacing with gland, the valve stem nut is provided with bearing, the valve between the outside and rack inner wall above and below extension
The relatively described support of stem nut can be rotated in a circumferential direction, and the inner chamber of the valve stem nut is connected with valve rod spiral.
The handwheel and valve stem nut are split, are provided with polygonal grooves inside the handwheel, outside the valve stem nut
Week, the corresponding polygonal grooves were provided with corresponding polygonal outer periphery, and being coordinated by polygonal grooves and polygonal outer periphery makes handwheel
Circumferentially linked with valve stem nut, the valve stem nut is provided with platform, the square thread on polygonal outer periphery below polygonal outer periphery
Nut is connected with, the handwheel is spacing between the platform and nut.
Tray deck is fixed with the valve body, the tray deck is connected with support bar with support, is connected with the valve rod
Locating part, the locating part are connected with support bar, and the locating part makes the circumferentially spacing axial direction of valve rod can upper and lower displacement.
Rectangular through holes are provided with the middle part of the locating part, the length of the rectangular through holes is more than or equal to the diameter of valve rod,
Width is less than the diameter of valve rod, and the valve rod is provided with the limiting section being adapted to the rectangular through holes, the both ends of the locating part
Provided with the neck being adapted to the support bar, the locating part is that two locating part splits are closed up and are bolted to be formed
's.
The beneficial effects of the utility model are as follows：Handwheel is rotated, it is mesh to make valve rod drive flap to move up and down stop valve
Flow is marked, because limited position mechanism, valve rod can only be moved up and down and can not rotated, and pass through locking device attended operation handwheel and valve
Bar, it is circumferential spacing so as to be formed to operation handwheel, so manipulator is taken turns locking can not rotate, so as to fix valve rod and flap
Position, fix the flow that stop valve can pass through.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the diagrammatic cross-section of support.
Fig. 3 is the diagrammatic cross-section of limited block.
Fig. 4 is the top view of limited block.
Fig. 5 is the structural representation of valve stem nut.
Fig. 6 is the top view of valve stem nut.
Fig. 7 is the structural representation of valve rod.
Fig. 8 is diagrammatic cross-section of the valve rod at limiting section.
Fig. 9 is the diagrammatic cross-section of locating part.
In figure, 1, valve body；2, valve rod；201, limiting section；3, flap；4, support；401, groove；5, handwheel；6, lock pin；7,
Valve stem nut；701, polygonal outer periphery；702, platform；703, extension；8, gland；9, bearing；10, limited block；11, second is logical
Hole；12, first through hole；13, support bar；14, locating part；1401, rectangular through holes；1402, neck；1403, locating part split；
15, nut；16, tray deck.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model can be better described.
A kind of stop valve, valve body 1, flap 3, tray deck 16, support bar 13, support 4, manipulator are sequentially provided with from bottom to up
Wheel, limited block 10, a valve rod 2 sequentially pass through limited block 10, operation handwheel, support 4 under upper, stretched into valve body 1, end is solid
Surely flap 3 is connected, valve rod 2 is threaded engagement with operation handwheel, and rotating operation handwheel makes valve rod upper and lower displacement.The operation handwheel
Upper end be connected with limited block 10, the limited block 10 circumferentially links with operation handwheel, and the valve rod 2 is provided with the second through hole
11, second through hole 11 is manhole, and the limited block 10 is provided with 4 first through hole 12, and the first through hole 12 is
Bar-shaped trough, when valve rod 2 is located at standard-sized sheet, the upper end position of the first through hole 12 is highly more than or equal to where the second through hole 11
Highly, when valve rod 2 positioned at it is fully closed when the first through hole 12 lower end position highly be less than or equal to the second through hole 11 where height
Degree；The limited block 10 is connected with a lock pin 6, the lock pin 6, first through hole 12, the width of the three of the second through hole 11 by chain
Degree is adapted, and when the through hole 11 of first through hole 12 and second is to corresponding to, lock pin may be inserted into the through hole 11 of first through hole 12 and second, from
And limited block 10 is formed circumferential spacing, it is allowed to rotate so as to limit operation handwheel, to fix the position of valve rod.
Wherein, set with the limited block 10 that circumferentially links of operation handwheel, locked by limited block and valve rod, can also be by the
One through hole 12 is set directly on operation handwheel, can also be spacing to the circumference for operating handwheel by lock pin realization, still, operation
Handwheel needs to set grip part conveniently to be operated, then sets first through hole 12 and lock pin 6 is passed through first through hole 12, so grasps
Making can be very inconvenient.
Wherein, first through hole 12 is bar-shaped trough, or second through hole 11 is bar-shaped trough.It is arranged to the purpose of bar-shaped trough
Be in order that valve rod upper and lower displacement be can allow the through hole 11 of first through hole 12 and second relative in different height position and
Lock pin is set to pass through the through hole 11 of first through hole 12 and second.The through hole 11 of first through hole 12 or second can also be that several are circular
Through hole, and set around axle helical form, but can be difficult many so in processing, and limited block 10 or valve rod 2 can be influenceed
Intensity.
Wherein, preferably the second through hole 11 is bar-shaped trough.It is so logical from less second if first through hole 12 is bar-shaped trough
Hole 11 sees whether first through hole 12 is difficult many with the 11 relative meeting of the second through hole, and sees first through hole from larger first through hole 12
Whether 12 is simple many compared with the second through hole 11 is corresponding.
Wherein, bar-shaped trough is four, and is set around axle etc. point, so, adjusts fixed unit as operation handwheel rotation
The distance of 1/4 week displacement of valve rod, moreover, latch can insert from the bar-shaped trough on one side, through the second through hole 11, from another side
Bar-shaped trough stretches out, in this way it can be ensured that locking device pins limited block 10 with valve rod completely, and it is more balanced to exert a force, and also may be used
To be two, six, eight or more even numbers, the unit so adjusted is different.If odd number or not decile
Set, locking can also be realized.
Wherein one end of lock pin is connected by chain with limited block 10, can so be realized anti-lost antitheft.
The operation handwheel includes handwheel 5, and the inside of handwheel 5 is provided with valve stem nut 7, the outside of valve rod 2 and valve stem nut 7
Inside is provided with mutually corresponding screw thread；The tray deck 16 is fixed on outside valve body 1, and the tray deck 16 passes through 4 support bars
13 connecting brackets 4, fix support 4, and the support 4 is provided with groove 401, and the valve stem nut 7 is provided with extension 703,
The extension 703 is located in groove 401, and spacing with gland 8, and the valve stem nut 7 is above and below extension 703
Bearing 9 is provided between outside and rack inner wall, the relatively described support 4 of the valve stem nut 7 can rotate in a circumferential direction；In the handwheel 5
Portion is provided with polygonal grooves, and the periphery of valve stem nut 7 corresponds to the polygonal grooves and is provided with corresponding polygonal outer periphery 701,
Being coordinated by polygonal grooves and polygonal outer periphery 701 makes operation handwheel 5 and the circumferential linkage of valve stem nut 7, outside the polygon
All 701 lower ends are provided with platform 702, and the top of polygonal outer periphery 701 has been connected through a screw thread nut 15, the operation handwheel 5
It is fixed between platform 702 and nut 15.When rotating operation handwheel 5, the concomitant rotation of valve stem nut 7, valve stem nut 7 and valve rod
2 be threaded connection, and the axial limiting of valve stem nut 7 is motionless, the concomitant rotation of valve rod 2 and upper and lower displacement, drives the displacement of flap 3, so as to
Stop valve is turned on and off, changes the flow of stop valve.By the spacing by between valve stem nut and support 4 of handwheel axial direction
Connection realize, so rotation when resistance it is smaller.The inside of handwheel 5 can also be provided with mutual corresponding screw thread with the outside of valve rod 2,
And handwheel is connected on support, but resistance during such rotation can be much larger.
Wherein, handwheel 5 and valve stem nut 7 are set to split, are more convenient in order to install, moreover, it is achieved that dismantled and assembled, had
Beneficial to follow-up maintenance and maintenance.
Tray deck 16 is fixed with the valve body 1, the tray deck 16 is connected with support bar 13, the valve rod 2 with support 4
Upper connection finite place piece 14, the locating part 14 are connected with support bar 13, and the locating part 14 forms circumferential spacing to valve rod 2.
Realize that valve rod does not rotate circumferentially by locating part, flat key can also be set on valve rod, set on valve body or support corresponding recessed
Groove, being coordinated by groove with flat key makes valve rod not rotate circumferentially, so processes more complicated.
The middle part of locating part 14 is provided with rectangular through holes 1401, and the length of the rectangular through holes 1401 is more than or equal to valve
The diameter of bar 2, the wide diameter less than valve rod 2, the valve rod 2 are provided with the limiting section being adapted to the rectangular through holes 1401
201, the both ends of the locating part 14 are provided with the neck 1402 being adapted to the support bar 13, and the locating part 14 is two spacing
Part split 1403 is closed up and is bolted what is formed.So it is easy to production to install.
A kind of embodiment of the present utility model is the foregoing is only, is not used for limiting the scope of protection of the utility model；
The scope of protection of the utility model is limited by the claim in claims, and it is every made according to utility model it is equivalent
Change and modification, all within the protection domain of the utility model patent.
Claims (10)
1. a kind of stop valve, including valve body（1）, valve rod（2）, flap（3）, support（4）, operation handwheel（5）And position-limit mechanism, institute
State valve rod（2）Valve body is stretched into bottom（1）It is interior and connect flap（3）, it is described operation handwheel it is spacing on support in the axial direction
And can circumferentially rotate, the position-limit mechanism makes valve rod（2）Circumferential spacing axial direction can upper and lower displacement, the operation handwheel and valve rod
（2）For threaded engagement, it is characterised in that：Also include locking device, the locking device has attended operation handwheel and valve rod（2）
Circumferential spacing latched position is formed to operation handwheel, and makes operation handwheel with respect to valve rod（2）Rotatable unlocked position.
2. stop valve according to claim 1, it is characterised in that：The operation handwheel upper end is connected with limited block（10）,
The limited block（10）Circumferentially linked with operation handwheel, the locking device includes lock pin（6）, the limited block（10）Provided with
The lock pin（6）The first through hole of adaptation（12）, the valve rod（2）Provided with the second corresponding through hole（11）, the lock pin（6）
With insertion first through hole（12）With the second through hole（11）Form circumferential spacing latched position to operation handwheel, and insertion the
One through hole（12）Or second through hole（11）Or it is not inserted into and makes operation handwheel with respect to valve rod（2）Rotatable unlocked position.
3. stop valve according to claim 2, it is characterised in that：The first through hole（12）For bar-shaped trough, or it is described
Second through hole（11）For bar-shaped trough.
4. stop valve according to claim 3, it is characterised in that：The first through hole（12）For bar-shaped trough.
5. stop valve according to claim 4, it is characterised in that：The bar-shaped trough is even number, and is set up separately around axle etc.
Put.
6. stop valve according to claim 2, it is characterised in that：One end of the lock pin passes through chain and limited block（10）
Connection.
7. stop valve according to claim 1, it is characterised in that：The operation handwheel includes handwheel（5）, the handwheel
（5）Inside is provided with valve stem nut（7）, the valve stem nut（7）With the handwheel（5）Circumferential linkage, the support（4）It is provided with
Groove（401）, the valve stem nut（7）It is provided with extension（703）, the extension（703）Positioned at groove（401）It is interior, and
Use gland（8）It is spacing, the valve stem nut（7）In extension（703）Above and below outside and rack inner wall between be provided with
Bearing（9）, the valve stem nut（7）Relatively described support（4）It can rotate in a circumferential direction, the valve stem nut（7）Inner chamber and valve rod
（2）Spiral connects.
8. stop valve according to claim 7, it is characterised in that：The handwheel（5）With valve stem nut（7）For split,
The handwheel（5）Inside is provided with polygonal grooves, the valve stem nut（7）Periphery corresponds to the polygonal grooves and is provided with accordingly
Polygonal outer periphery（701）, pass through polygonal grooves and polygonal outer periphery（701）Cooperation makes handwheel（5）With valve stem nut（7）It is circumferential
Linkage, the valve stem nut（7）In polygonal outer periphery（701）Lower section is provided with platform（702）, in polygonal outer periphery（701）Top
It is threaded with nut（15）, the handwheel（5）It is spacing in the platform（702）With nut（15）Between.
9. stop valve according to claim 1, it is characterised in that：The valve body（1）On be fixed with tray deck（16）, it is described
Tray deck（16）With support（4）It is connected with support bar（13）, the valve rod（2）Upper connection finite place piece（14）, the locating part
（14）With support bar（13）Connection, the locating part（14）Make valve rod（2）Circumferential spacing axial direction can upper and lower displacement.
10. stop valve according to claim 9, it is characterised in that：The locating part（14）Middle part is provided with rectangular through holes
（1401）, the rectangular through holes（1401）Length be more than or equal to valve rod（2）Diameter, it is wide to be less than valve rod（2）Diameter, institute
State valve rod（2）It is provided with and the rectangular through holes（1401）The limiting section of adaptation（201）, the locating part（14）Both ends set
Have and the support bar（13）The neck of adaptation（1402）, the locating part（14）For two locating part splits（1403）Close up simultaneously
And it is bolted what is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365023.1U CN206668979U (en) | 2017-04-10 | 2017-04-10 | A kind of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365023.1U CN206668979U (en) | 2017-04-10 | 2017-04-10 | A kind of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668979U true CN206668979U (en) | 2017-11-24 |
Family
ID=60379918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720365023.1U Active CN206668979U (en) | 2017-04-10 | 2017-04-10 | A kind of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668979U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812953A (en) * | 2017-04-10 | 2017-06-09 | 永嘉品信阀门有限公司 | A kind of stop valve |
| CN113154052A (en) * | 2021-03-30 | 2021-07-23 | 哈电集团哈尔滨电站阀门有限公司 | Novel stop valve |
-
2017
- 2017-04-10 CN CN201720365023.1U patent/CN206668979U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812953A (en) * | 2017-04-10 | 2017-06-09 | 永嘉品信阀门有限公司 | A kind of stop valve |
| CN113154052A (en) * | 2021-03-30 | 2021-07-23 | 哈电集团哈尔滨电站阀门有限公司 | Novel stop valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |