CN208431404U - Submerged plate formula knife gate valve - Google Patents
Submerged plate formula knife gate valve Download PDFInfo
- Publication number
- CN208431404U CN208431404U CN201820954105.4U CN201820954105U CN208431404U CN 208431404 U CN208431404 U CN 208431404U CN 201820954105 U CN201820954105 U CN 201820954105U CN 208431404 U CN208431404 U CN 208431404U
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- Prior art keywords
- flashboard
- inclined surface
- valve
- connector
- port
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Abstract
The utility model discloses submerged plate formula knife gate valves, it include valve body, valve seat, flashboard, valve rod and handwheel, connector is provided between valve rod and flashboard, connector is connected with valve rod by pin, connector includes hook portion and accommodating cavity, flashboard is provided with the suspention portion above the port and port of perforation with flashboard integrally connected, flashboard is placed in port by hook portion and suspention portion is placed in accommodating cavity and is lifted on connector, hook portion bottom surface forms the first inclined surface, there is the second inclined surface that cooperation is formed with the first inclined surface on port inner wall, when flashboard is closed, flashboard is traversing to snout cavity side by the cooperation of the first inclined surface and the second inclined surface and presses on valve seat.Flashboard, which moves down, is inserted into groove, and the first inclined surface and the second inclination and slide face contact, and flashboard and connector dislocation drive flashboard traversing to snout cavity side, so that flashboard connect closer with valve seat, increases the sealing performance of flashboard and valve seat.
Description
Technical field
The utility model relates to knife gate valve more particularly to a kind of submerged plate formula knife gate valves.
Background technique
Valve is control unit in pipeline fluid conveying system, it be for changing access section and flow direction of medium,
Have the function of water conservancy diversion, cut-off, adjusting, throttling, non-return, shunting or overflow release etc..The opening and closing element that gate valve refers to is cutting for flashboard
Disconnected valve, the direction of motion and flow direction of flashboard are perpendicular.Knife gate valve is to change plate valve plate on the basis of common gate valve
For knife type valve plate.The working principle of knife gate valve is: manually-operated gate hand rotates handwheel, makes valve rod up and down to drive lock
Plate moves up and down, and opens, closes valve, is rotated clockwise, and flashboard decline, valve is closed, rotated counterclockwise, lock
Plate rises, valve opening.
But current knife gate valve is when in use, the sealing effect between flashboard and valve seat is bad, especially unidirectionally
Submerged plate formula knife gate valve can cause the movement of flashboard since flashboard is under pressure medium, and structure is not compact enough, often will appear and lets out
Leakage.
Summary of the invention
The purpose of this utility model: in order to overcome the drawbacks of the prior art, the utility model provides a kind of submerged plate formula knife
Gate valve, to solve the technical problem of leakproofness difference between knife gate valve flashboard and valve seat in the prior art.
The technical solution of the utility model includes: include valve body, valve seat, flashboard, valve rod and handwheel, the bottom of the valve rod with
The flashboard that valve inner is arranged in connects, the channel slided up and down for flashboard of the valve body being internally provided with up and down,
Middle part is provided with the snout cavity and outlet plenum of left and right perforation, and the valve seat is set to snout cavity side, is additionally provided in the valve body
For the groove of flashboard grafting, connector is provided between the valve rod and flashboard, the connector is connected with valve rod by pin,
The connector includes hook portion and accommodating cavity, the flashboard include above the port and port of perforation with flashboard one
The suspention portion of body connection, the flashboard is placed in port by hook portion and suspention portion is placed in accommodating cavity and is lifted on connector
On, the hook portion bottom surface forms the first inclined surface, has on the port inner wall and forms the second of cooperation with the first inclined surface
Inclined surface, first inclined surface and the second inclined surface are tilted from snout cavity to outlet cavity direction obliquely, and the flashboard closes
When closing, flashboard is traversing to snout cavity side by the cooperation of the first inclined surface and the second inclined surface and presses on valve seat.
By adopting the above technical scheme, when valve is closed, flashboard, which moves down, is inserted into groove, continues to apply valve rod in valve rod and press
In the case where power, the first inclined surface and second tilts face contact and slides, and flashboard and connector dislocation drive flashboard to snout cavity
Side is traversing, so that flashboard connect closer with valve seat, increases the sealing performance of flashboard and valve seat.
The further setting of the utility model: have on accommodating cavity to import cavity direction and leave a blank for traversing pre- in suspention portion
Between.
Using above-mentioned further setting, reserved space provides traversing space, the integrality of assurance function for suspention portion.
The further setting of the utility model: to being extended with limited block at reserved space at valve rod, and limited block covers
On the outside of lid reserved space.
Further it is arranged using above-mentioned, prevents that suspention portion from excessively moving and removing accommodating cavity causes flashboard to fall.
The further setting again of the utility model: the first inclined surface and the second inclined surface tilt angle are 45 °.
Using above-mentioned setting further again, is conducive to the first inclined surface and the sliding of the second inclined surface is staggered.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model specific embodiment；
Fig. 2 is the partial enlarged view in the utility model Fig. 1 at A；
Fig. 3 is the structural schematic diagram of the utility model flashboard；
Wherein, valve body 1, valve seat 2, flashboard 3, valve rod 4, handwheel 5, snout cavity 11, outlet plenum 12, groove 13, connector 6,
Pin 41, hook portion 61, accommodating cavity 62, port 31, suspention portion 32, the first inclined surface 611, the second inclined surface 311, reserved space
621, limited block 42.
Specific embodiment
Submerged plate formula knife gate valve as shown in FIG. 1 to FIG. 3 includes valve body 1, valve seat 2, flashboard 3, valve rod 4 and handwheel 5, valve rod
4 bottom is connect with the flashboard 3 being arranged in inside valve body 1, valve body 1 be internally provided with up and down for gliding on flashboard 3
Dynamic channel, middle part are provided with the snout cavity 11 and outlet plenum 12 of left and right perforation, and valve seat 2 is set to 11 side of snout cavity, valve body 1
It is inside additionally provided with the groove 13 of grafting when closing for flashboard 3, connector 6, connector 6 and valve rod are provided between valve rod 4 and flashboard 3
4 are connected by pin 41, and pin 41 is penetrated in valve rod 4 from connector outer wall and is pierced by again, and whole connector 6 is in " C " font, including
There are hook portion 61 and accommodating cavity 62, hook portion 61 is in around shape semi-surrounding in 62 periphery of accommodating cavity, and flashboard 3 includes port 31
And suspention portion 32, port 31 are penetrated through from 11 side of snout cavity to 12 side of outlet plenum, suspention portion 32 and 3 integrally connected of flashboard are simultaneously
Above port 31, flashboard 3 is placed in port 31 by hook portion 61 and suspention portion 32 is placed in accommodating cavity 62 and is lifted on
On connector 6,61 bottom surface of hook portion forms the first inclined surface 611, has and the first inclined surface 611 on the bottom surface of 31 inner wall of port
The second inclined surface 311 of cooperation is formed, the first inclined surface 611 and the second inclined surface 311 are from snout cavity 11 to 12 side of outlet plenum
To tilting obliquely, and the first inclined surface 611 and 311 tilt angle of the second inclined surface are 45 °.To import on accommodating cavity 62
12 direction of chamber has the reserved space 621 traversing for suspention portion 32.When valve is closed, 5 rotary valve rod 4 of handwheel, flashboard 3 is from logical
Mobile to snout cavity 11 and 12 direction of outlet plenum and be inserted into groove 13 in road, under the pressure of valve rod 4, first inclines flashboard 3
Inclined-plane 611 and the second inclined surface 311 contact and the sliding that misplaces, suspention portion 32 move in reserved space 621, so that driving flashboard
3 to traversing to 11 side of snout cavity, and flashboard 3 presses on valve seat 2.
To being extended with limited block 42 at reserved space at valve rod 4, and limited block 42 covers 621 outside of reserved space, hangs
When hanging part 32 or mobile excessive flashboard 3, needs to limit its excessive movement by limited block 42 and remove accommodating cavity 62.
Claims (4)
1. submerged plate formula knife gate valve includes valve body, valve seat, flashboard, valve rod and handwheel, the bottom of the valve rod and setting are in valve body
Internal flashboard connection, the channel slided up and down for flashboard of the valve body being internally provided with up and down, middle part is provided with
The snout cavity and outlet plenum of left and right perforation, the valve seat are set to snout cavity side, are additionally provided in the valve body for flashboard grafting
Groove, it is characterised in that: be provided between the valve rod and flashboard connector, the connector and valve rod pass through pin connect
It connects, the connector includes hook portion and accommodating cavity, and the flashboard includes above the port and port of perforation and lock
The suspention portion of plate integrally connected, the flashboard is placed in port by hook portion and suspention portion is placed in the company of being lifted in accommodating cavity
On connector, the hook portion bottom surface forms the first inclined surface, has on the port inner wall and forms cooperation with the first inclined surface
Second inclined surface, first inclined surface and the second inclined surface are tilted from snout cavity to outlet cavity direction obliquely, the lock
When plate is closed, flashboard is traversing to snout cavity side by the cooperation of the first inclined surface and the second inclined surface and presses on valve seat.
2. submerged plate formula knife gate valve according to claim 1, it is characterised in that: have on the accommodating cavity to import cavity direction
For the traversing reserved space in suspention portion.
3. submerged plate formula knife gate valve according to claim 1 or 2, it is characterised in that: to prolonging at reserved space at the valve rod
Stretching has limited block, and on the outside of limited block covering reserved space.
4. submerged plate formula knife gate valve according to claim 1 or 2, it is characterised in that: first inclined surface and the second inclination
Face tilt angle is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954105.4U CN208431404U (en) | 2018-06-20 | 2018-06-20 | Submerged plate formula knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954105.4U CN208431404U (en) | 2018-06-20 | 2018-06-20 | Submerged plate formula knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208431404U true CN208431404U (en) | 2019-01-25 |
Family
ID=65100744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820954105.4U Active CN208431404U (en) | 2018-06-20 | 2018-06-20 | Submerged plate formula knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208431404U (en) |
-
2018
- 2018-06-20 CN CN201820954105.4U patent/CN208431404U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325102 Ou Bei Zhen An Feng Cun, Yongjia County, Wenzhou City, Zhejiang Province Patentee after: Haidun special valve Co.,Ltd. Address before: 325102 Ou Bei Zhen An Feng Cun, Yongjia County, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG HITON SPECIAL VALVE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |