CN204852403U - Activity seal knife gate valve - Google Patents
Activity seal knife gate valve Download PDFInfo
- Publication number
- CN204852403U CN204852403U CN201520637105.8U CN201520637105U CN204852403U CN 204852403 U CN204852403 U CN 204852403U CN 201520637105 U CN201520637105 U CN 201520637105U CN 204852403 U CN204852403 U CN 204852403U
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- Prior art keywords
- flashboard
- valve
- valve rod
- big envelope
- support
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Abstract
The utility model discloses an activity seal knife gate valve, it includes valve rod etc, the valve rod is located the below of hand wheel and perpendicular with the hand wheel, and the valve rod is located inside the big envelope, actuating mechanism is located the inside top of big envelope and adjacent with the valve rod, fastening nut is located the big envelope top, the round pin position of axle is below the valve rod, the gland is located round pin axle below, the support is located the inside side of big envelope, two support nuts are located the both ends of support respectively, the flashboard is connected with the valve rod, the flashboard is in the valve body, be equipped with floodgate board cavity on the valve body, be equipped with sealed piece at floodgate board cavity inner wall, sealed piece withstands the flashboard, the valve body bottom is equipped with the disk seat. The utility model relates to a rationally, compact structure, sealed effectual, the long -term use can not influence the leakproofness yet, and because the edge of sealed piece is the fillet, consequently can not make the flashboard fish tail yet.
Description
Technical field
The utility model relates to a kind of knife gate valve, particularly relates to a kind of movable sealing knife gate valve.
Background technique
Knife gate valve is also known as cutter door gate valve or blade type Parallel Slide Valves, its open-shut device is flashboard, moving direction and the flow direction of flashboard are perpendicular, by the knife-edge flashboard of cutting fiber material medium can be cut off, flashboard has two sealing surfaces, and two sealing surfaces of the most frequently used pattern gate valve form wedge shape, key groove is different with valve parameter, are generally 50, the flashboard of wedge-type blade type gate valve can make an entirety, is called rigidity flashboard; Also can make the flashboard that can produce micro-deformation, to improve its manufacturability, make up the deviation that sealing surface angle produces in course of working, this flashboard is called Flexible disc.
But current knife gate valve when in use, the sealing effect between flashboard and valve body is bad, especially one-way sealing knife gate valve, and because flashboard is in extrusion process, can cause loosening between parts, structure is compact not, therefore there is the situation of leakage.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of movable sealing knife gate valve, and it is reasonable in design, compact structure, good sealing effect, and Long-Time Service also can not affect sealing, and due to the edge of sealing block be fillet, flashboard therefore also can not be made to scratch.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of movable sealing knife gate valve, it is characterized in that, described movable sealing knife gate valve comprises valve rod, driving mechanism, handwheel, big envelope, bearing pin, tightening nut, support nut, support, gland, valve rod is positioned at the below of handwheel and vertical with handwheel, and valve rod is positioned at the inside of big envelope, driving mechanism is positioned at the inner upper of big envelope and adjacent with valve rod, tightening nut is positioned at the top of big envelope, bearing pin is positioned at below valve rod, gland is positioned at the below of bearing pin, support is positioned at the inner side of big envelope, two support nuts lay respectively at the two ends of support.
Preferably, described movable sealing knife gate valve also comprises valve body, flashboard, sealing block, valve gap, flashboard chamber, valve seat, flashboard is connected with valve rod, flashboard is arranged in valve body, valve body is provided with flashboard chamber, at the top of flashboard cavity wall, middle part, bottom fix respectively by screw and sealing block, and sealing block withstands flashboard, and body base is provided with valve seat.
Positive progressive effect of the present utility model is: the utility model is reasonable in design, compact structure, good sealing effect, and Long-Time Service also can not affect sealing, and due to the edge of sealing block be fillet, flashboard therefore also can not be made to scratch.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the element such as valve body, flashboard in the utility model.
Embodiment
The utility model preferred embodiment is provided, to describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the utility model movable sealing knife gate valve comprises valve rod 3, driving mechanism 4, handwheel 6, big envelope 7, bearing pin 8, tightening nut 10, support nut 13, support 14, gland 15, handwheel 6 is positioned at top of the present utility model, valve rod 3 is positioned at the below of handwheel 6 and vertical with handwheel 6, and valve rod 3 is positioned at the inside of big envelope 7, driving mechanism 4 is positioned at the inner upper of big envelope 7, and it is adjacent with valve rod 3, tightening nut 10 be positioned at big envelope 7 top and for fastening big envelope 7, bearing pin 8 is positioned at below valve rod 3, gland 15 is positioned at the below of bearing pin 8, support 14 is positioned at the inner side of big envelope 7, two support nuts 13 lay respectively at the two ends of support 14.
The utility model movable sealing knife gate valve also comprises valve body 1, flashboard 2, sealing block 5, valve gap 9, flashboard chamber 11, valve seat 12, flashboard 2 is connected with valve rod 3, flashboard 2 is arranged in valve body 1, valve body 1 is provided with a flashboard chamber 11 for flashboard 2 activity, at the top of flashboard chamber 11 inwall, middle part, bottom fix respectively by screw and sealing block 5, sealing block 5 withstands flashboard 2, the edge of its surface of contact is fillet, prevent flashboard from scratching, flashboard 2 is provided with, the valve seat 12 of flashboard 2 hydrodynamic reciprocating sealing bottom valve body 1.The shape of sealing block is square.
The utility model movable sealing knife gate valve is provided with sealing block 5 in flashboard chamber 11, when flashboard 2 moves down time, move to side after contact valve seat 12, press with sealing block 5, by this structure, not only ensure that its sealing, and Long-Time Service also can not affect sealing, edge due to sealing block is fillet, and flashboard therefore also can not be made to scratch.
Above-described specific embodiment; the technical problem of solution of the present utility model, technological scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a movable sealing knife gate valve, it is characterized in that, described movable sealing knife gate valve comprises valve rod, driving mechanism, handwheel, big envelope, bearing pin, tightening nut, support nut, support, gland, valve rod is positioned at the below of handwheel and vertical with handwheel, and valve rod is positioned at the inside of big envelope, driving mechanism is positioned at the inner upper of big envelope and adjacent with valve rod, tightening nut is positioned at the top of big envelope, bearing pin is positioned at below valve rod, gland is positioned at the below of bearing pin, support is positioned at the inner side of big envelope, and two support nuts lay respectively at the two ends of support.
2. movable sealing knife gate valve as claimed in claim 1, it is characterized in that, described movable sealing knife gate valve also comprises valve body, flashboard, sealing block, valve gap, flashboard chamber, valve seat, flashboard is connected with valve rod, flashboard is arranged in valve body, and valve body is provided with flashboard chamber, and at the top of flashboard cavity wall, middle part, bottom fix respectively by screw and sealing block, sealing block withstands flashboard, and body base is provided with valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637105.8U CN204852403U (en) | 2015-08-21 | 2015-08-21 | Activity seal knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637105.8U CN204852403U (en) | 2015-08-21 | 2015-08-21 | Activity seal knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852403U true CN204852403U (en) | 2015-12-09 |
Family
ID=54742949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520637105.8U Active CN204852403U (en) | 2015-08-21 | 2015-08-21 | Activity seal knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852403U (en) |
-
2015
- 2015-08-21 CN CN201520637105.8U patent/CN204852403U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |