CN206754431U - Combine valve plate type inside screw nonrising stem type gate valve - Google Patents
Combine valve plate type inside screw nonrising stem type gate valve Download PDFInfo
- Publication number
- CN206754431U CN206754431U CN201720577610.7U CN201720577610U CN206754431U CN 206754431 U CN206754431 U CN 206754431U CN 201720577610 U CN201720577610 U CN 201720577610U CN 206754431 U CN206754431 U CN 206754431U
- Authority
- CN
- China
- Prior art keywords
- valve plate
- valve
- waling stripe
- inside screw
- stripe mechanism
- 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
- 238000007789 sealing Methods 0.000 claims description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
Landscapes
- Mechanically-Actuated Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model discloses combination valve plate type inside screw nonrising stem type gate valve, it includes valve rod（1）, bonnet（2）, valve body（3）And valve plate, the valve plate include upper valve plate（4）And lower valve plate（5）, the upper valve plate and lower valve plate are flexibly connected with waling stripe mechanism respectively so that the upper valve plate and lower valve plate can rotate relative to waling stripe mechanism, and the waling stripe mechanism is located at the 1/3 1/2 of upper valve plate and lower valve plate overall height.The beneficial effects of the utility model are that upper valve plate and lower valve plate in combined type valve plate can rotate relative to waling stripe mechanism, so as to mitigate suffered impulsive force, the locked situation of valve stem nut is avoided to occur, waling stripe mechanism can also play a part of prompting aperture, and only half-open operation can be performed by allowing for inside screw nonrising stem type gate valve with the change of very little.
Description
Technical field
It the utility model is related to gate valve, more particularly to inside screw nonrising stem type gate valve.
Background technology
Inside screw nonrising stem type gate valve, swingle gate valve is called, valve stem nut is located on flashboard, and hand wheel rotating band ovable valve stem rotates, and makes
Flashboard is lifted, and is generally had trapezoidal thread in the bottom of valve rod, by the guide groove on the screw thread and flap of valve bottom, will be rotated
Motion is changed into moving along a straight line, that is, operation torque is changed into operating thrust.During Open valve, when flashboard hoisting depth is equal to valve
The 1 of door latus rectum：At 1 times, the passage of fluid is completely unimpeded, but operationally, this position can not monitor.During actual use,
It is using the summit of valve rod as mark, that is, motionless position is opened, as its fully open position.
The flap of inside screw nonrising stem type gate valve is that flashboard can be by the direct impact of medium, if impact long meeting of excessive or attack time
Cause the compression of flap one side is excessive relative displacement occurs with valve stem nut, the posture run-off the straight of flap, cause valve stem nut quilt
It is stuck and can not open and close, and existing inside screw nonrising stem type gate valve can only standard-sized sheet or fully closed, half-open operation can not be carried out, such as China is real
Manual inside screw nonrising stem type gate valve, including valve body and valve rod are disclosed with new patent application number CN201320531146.X, is led on the upside of valve body
Cross valve port and be connected with bonnet, bonnet is provided with through hole, and the lower end of the valve rod is stretched into valve body by the through hole, the valve rod
Upper end is connected with handwheel；Stuffing box and gland are sequentially provided with above the bonnet, positioned at the handwheel and gland
Between the valve rod be provided with external thread part, be bolted with indicator thereon, the side of the external thread part is opened provided with up stroke
Close and lower stroke switch, the end of the indicator below the lower stroke switch and below the upper stroke switch between on
Lower reciprocating motion.In order to indicate that the aperture of gate valve adds many annexes to gate valve, making maintenance cost is so improved,
The problem of other valve plate is caused valve stem nut locked by media impingement is not resolved.
Utility model content
The technical problems to be solved in the utility model be existing inside screw nonrising stem type gate valve can not carry out it is half-open operation and valve plate by
It is locked that impact is easily caused valve stem nut, and one kind is provided for this and combines valve plate type inside screw nonrising stem type gate valve.
The technical solution of the utility model is：Valve plate type inside screw nonrising stem type gate valve is combined, it includes valve rod, bonnet, valve body and valve plate,
The valve plate includes upper valve plate and lower valve plate, and the upper valve plate and lower valve plate are flexibly connected with waling stripe mechanism so that institute respectively
Stating valve plate and lower valve plate can rotate relative to waling stripe mechanism, and the waling stripe mechanism is located at upper valve plate and lower valve plate is total
At the 1/3-1/2 of body height.
Waling stripe mechanism described in such scheme includes left piston and the right piston being distributed on spindle of valve body line to this,
The left piston one side relative with right piston is connected by Flexible Connector, and the left piston and the opposite one side of right piston are
The taper being adapted to valve body sealing surface, the overall length of the left piston, Flexible Connector and right piston are slightly larger than the thickness of valve plate
Degree.
Upper valve plate and lower valve plate are hinged or are socketed with waling stripe mechanism respectively described in such scheme.
Flexible Connector described in such scheme is stage clip.
The improvement of such scheme is between the upper valve plate and left piston and right piston and lower valve plate and left piston and the right side
Sealing ring is fitted between piston respectively.
The beneficial effects of the utility model are that upper valve plate and lower valve plate in combined type valve plate can be relative to waling stripe machines
Structure rotates, and so as to mitigate suffered impulsive force, avoids the locked situation of valve stem nut from occurring, waling stripe mechanism can also be played and carried
Show the effect of aperture, only half-open operation can be performed by allowing for inside screw nonrising stem type gate valve with the change of very little.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram；
In figure, 1, valve rod, 2, bonnet, 3, valve body, 4, upper valve plate, 5, lower valve plate, 6, left piston, 7, right piston, 8, elasticity
Connector.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model includes valve rod 1, bonnet 2, valve body 3 and valve plate, it is characterized in that the valve plate includes
Upper valve plate 4 and lower valve plate 5, the upper valve plate and lower valve plate be flexibly connected respectively with waling stripe mechanism so that the upper valve plate and
Lower valve plate can rotate relative to waling stripe mechanism, and the waling stripe mechanism is located at the 1/ of upper valve plate and lower valve plate overall height
At 3-1/2.
Embodiment 1：Valve plate type inside screw nonrising stem type gate valve is combined, it includes valve rod, bonnet, valve body and valve plate, and the valve plate includes upper
Valve plate and lower valve plate, the upper valve plate and lower valve plate are articulated and connected respectively with waling stripe mechanism so that the upper valve plate and lower valve
Plate can rotate relative to waling stripe mechanism, and the waling stripe mechanism is located at the 1/3 of upper valve plate and lower valve plate overall height,
Waling stripe mechanism includes left piston 6 and right piston 7, the left piston and the right piston phase being distributed on spindle of valve body line to this
To one side connected by stage clip 8, the left piston and the opposite one side of right piston are the taper being adapted to valve body sealing surface, institute
The overall length for stating left piston, Flexible Connector and right piston is slightly larger than the thickness of valve plate.
Embodiment 2：Difference with embodiment 1 is to state waling stripe mechanism and is located at upper valve plate and lower valve plate overall height
At 2/5.
Embodiment 3：Difference with embodiment 1 is to state waling stripe mechanism and is located at upper valve plate and lower valve plate overall height
At 1/2.
Upper valve plate and lower valve plate in above-described embodiment 1-3 can rotate relative to waling stripe mechanism refers to small turn
Dynamic, rotation amplitude is about 1-3 °, and for upper valve plate due to smaller by valve pocket limiting rotation range, lower valve plate can have larger turn
Dynamic amplitude.
Embodiment 4：Difference with embodiment 1 is that the upper valve plate and lower valve plate cover company with waling stripe mechanism respectively,
Can be specifically specifically set by setting the corresponding collar to be socketed in waling stripe mechanism on upper valve plate and lower valve plate
Be connected on left piston and right piston, when upper lower valve plate is impacted will the occurred level displacement on left piston and right piston,
When needing to lift valve plate, its posture of upper lower valve plate meeting automatic straightening extremely overlaps with spindle of valve body line.The embodiment may apply to
In embodiment 2 and 3.
Embodiment 5：In order to ensure upper valve plate and lower valve plate and the sealing property of waling stripe mechanism, in the base of embodiment 4
Further optimization is done on plinth, between the upper valve plate and left piston and right piston and between lower valve plate and left piston and right piston
Sealing ring is fitted with respectively.
The utility model is realized in half-open operation：When lifting valve plate, valve plate can be automatically returned in valve body
Axial location, with the rising of valve plate, left piston and right piston will be contacted and will be pressurized with valve body sealing surface and opposite move occurs respectively
Dynamic, stage clip, which is pressurized, to be shortened, and at this moment operator can experience and be obstructed, and show that valve plate has lifted corresponding height, if will be after
Continuous lifting valve plate, stage clip continue to be pressurized and shortened, and left piston and right piston continue to relatively move in retraction valve plate, obstacle contact, valve
Plate can continue rising and realize that standard-sized sheet operates.
Claims (5)
1. combining valve plate type inside screw nonrising stem type gate valve, it includes valve rod（1）, bonnet（2）, valve body（3）And valve plate, it is characterized in that the valve plate
Including upper valve plate（4）And lower valve plate（5）, the upper valve plate and lower valve plate are flexibly connected with waling stripe mechanism so that described respectively
Upper valve plate and lower valve plate can rotate relative to waling stripe mechanism, and the waling stripe mechanism is located at upper valve plate and lower valve plate is overall
At the 1/3-1/2 of height.
2. combination valve plate type inside screw nonrising stem type gate valve as claimed in claim 1, it is characterized in that the waling stripe mechanism is included on valve
The left piston that body axis is distributed to this（6）And right piston（7）, the left piston and the relative one side of right piston pass through elasticity even
Fitting（8）Connection, the left piston and the opposite one side of right piston are the taper being adapted to valve body sealing surface, the left piston,
The overall length of Flexible Connector and right piston is slightly larger than the thickness of valve plate.
3. as claimed in claim 1 or 2 combination valve plate type inside screw nonrising stem type gate valve, it is characterized in that the upper valve plate and lower valve plate respectively with
Waling stripe mechanism is be hinged or is socketed.
4. combination valve plate type inside screw nonrising stem type gate valve as claimed in claim 2, it is characterized in that the Flexible Connector is stage clip.
5. combination valve plate type inside screw nonrising stem type gate valve as claimed in claim 1 or 2, it is characterized in that the upper valve plate and left piston and right work
Sealing ring is fitted between plug and between lower valve plate and left piston and right piston respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577610.7U CN206754431U (en) | 2017-05-23 | 2017-05-23 | Combine valve plate type inside screw nonrising stem type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577610.7U CN206754431U (en) | 2017-05-23 | 2017-05-23 | Combine valve plate type inside screw nonrising stem type gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754431U true CN206754431U (en) | 2017-12-15 |
Family
ID=60619723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720577610.7U Expired - Fee Related CN206754431U (en) | 2017-05-23 | 2017-05-23 | Combine valve plate type inside screw nonrising stem type gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197665A (en) * | 2020-01-13 | 2020-05-26 | 许春俤 | Large valve of non-rising stem linkage pilot diaphragm based on fluid water scale self-checking |
-
2017
- 2017-05-23 CN CN201720577610.7U patent/CN206754431U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197665A (en) * | 2020-01-13 | 2020-05-26 | 许春俤 | Large valve of non-rising stem linkage pilot diaphragm based on fluid water scale self-checking |
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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 |
Granted publication date: 20171215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |