CN204985969U - Hard -sealing gate valve - Google Patents
Hard -sealing gate valve Download PDFInfo
- Publication number
- CN204985969U CN204985969U CN201520427639.8U CN201520427639U CN204985969U CN 204985969 U CN204985969 U CN 204985969U CN 201520427639 U CN201520427639 U CN 201520427639U CN 204985969 U CN204985969 U CN 204985969U
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- valve
- flashboard
- pin
- gap
- valve gap
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Abstract
The utility model relates to a fluid control valve door field provides a hard -sealing gate valve who encrypts the theftproof, including valve body, valve rod, valve gap and flashboard. The utility model discloses being equipped with the encryption device in the hard -sealing gate valve, must adopting the special spanner to go on operating during the use, the operation can not be opened, closed to non - special spanner to it. And the connecting portion at valve rod and valve cover connection portion, valve gap and valve body connecting portion, gate valve and valve body set up sealing device respectively, improve the utility model discloses a sealing performance.
Description
Technical field
The utility model relates to fluid control valve field, and what especially relate to is a kind of hard seal gate valve.
Background technique
Seal gate valve is often applied on the fluid pipe-lines such as tap water, sewage, metallurgy, energy system, uses as adjustment and cut-off device.Seal gate valve is mostly arranged on the main line of open air or underground, and structure is simple, the exposed outside of operative section, because easily being operated, often causing and to steal or misoperation causes pipeline inner fluid to run off, causing unnecessary loss.Simultaneously seal gate valve needs the sealing of increasing, with Protective valve body cavity inner valve stem etc. not by corrosion such as the fluids in pipeline.
Model utility content
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of hard seal gate valve of encrypted antitheft.
For achieving the above object, technical solution of the present utility model is: a kind of hard seal gate valve, valve body, valve rod, valve gap and flashboard, valve body and valve gap are fixedly connected to form cavity, and flashboard is connected with valve gap by valve rod.Also comprise the encryption device being arranged at and being connected above valve gap and with valve rod, encryption device comprises encryption lid and pin; The inner upper post holes being provided with the degree of depth and being more than or equal to pin of encryption lid; Valve gap top is provided with the lower post holes that and the degree of depth chimeric with pin is less than pin.
Preferably, upper post holes built with spring, the degree of depth of upper post holes equal pin and compressive state its length and.
Preferably, valve body is provided with antisymmetric two baffle plates that incline; Baffle plate one end is connected to valve body, and the other end is affixed on the side of flashboard just; Two baffle plates are affixed on gate valve both sides respectively.When flashboard is elevated, baffle plate is close to flashboard side, and gear removes the fluid in pipeline, prevents fluid residuals in flashboard, enters cavity, corrosion valve rod.
Preferably, valve gap and valve body connection part are provided with seal washer, and valve rod and valve gap connection part are axially provided with setscrew nut and multiple O type circle successively.Seal washer can improve the sealing between valve gap and valve body, and O type circle can increase the sealing of valve rod and valve cover chamber.Valve gap adopts casting to make mostly, and valve rod is iron and steel material quality, and setscrew nut can make valve rod be located by connecting in valve gap, and avoids the damage that valve rod and valve gap unlike material use break-in to produce for a long time.
Preferably, described flashboard is coated with rubber layer, prevents flashboard by flow-induced corrosion.
Preferably, also comprise connecting tube import and outlet, import is provided with internal thread, and outlet is provided with outside thread.During use, can directly with import, export the pipeline mated, also can add the pipeline valves such as the safety check connecing coupling at import or export as required.
By adopting above-mentioned technological scheme, the beneficial effects of the utility model are: be provided with encryption device in the hard seal gate valve of the utility model, and special spanner must be adopted during use to carry out operating, and non-dedicated spanner can not carry out open and close operation to it.Meanwhile, respectively seal arrangement is set at the joint of valve rod and valve gap joint, valve gap and valve body joint, flashboard and valve body, improves sealability of the present utility model.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is encryption device schematic diagram of the present utility model.
Main Reference Numerals illustrates: 1, valve body, 13, cavity, 2, valve rod, 3, valve gap, 31, lower post holes, 41, baffle plate, 5, flashboard, 6, encryption lid, 61, upper post holes, 62, shrinkage pool, 7, pin, 8, spring, 9, setscrew nut, 10, O type circle, 11, seal washer, 12, safety check, 14, import, 15, outlet.
Embodiment
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
As Figure 1-Figure 2, a kind of hard seal gate valve of the utility model, comprise valve body 1, valve rod 2, valve gap 3 and flashboard 5, valve body 1 and valve gap 3 are fixedly connected to form cavity 13, and flashboard 5 is connected with valve gap 3 by valve rod 2.Also comprise the encryption device being arranged at and being connected above valve gap 3 and with valve rod 2, encryption device comprises encryption lid 6 and pin 7; Encryption lid 6 inside is provided with post holes 61, has spring 8 in upper post holes 61, the degree of depth of upper post holes 61 equal pin 7 and compressive state spring 8 length and.Valve gap 3 top is provided with the lower post holes 31 that and the degree of depth chimeric with pin 7 is less than pin 7.Normality situation, under the effect of spring 8, pin 7 is arranged in lower post holes 31, and part is embedded in post holes 61, encryption lid 6 and valve gap 3 is blocked, cannot rotate.
Valve body 1 is provided with antisymmetric two baffle plates 41 that incline; Baffle plate 41 one end is connected to valve body 1, and the other end is affixed on the side of flashboard 5 just; Two baffle plates 41 are affixed on gate valve 5 both sides respectively.When flashboard 5 is elevated, baffle plate 41 is close to flashboard 5 side, and gear removes the fluid in pipeline, prevents fluid residuals in flashboard 5, enters cavity 43, and corrosion valve rod 2, improves sealability of the present utility model.
Valve gap 3 and valve body 1 connection part are provided with seal washer 11, and valve rod 2 is axially provided with setscrew nut 9 and multiple O type circle 10 successively with valve gap 3 connection part.Seal washer 11 can improve the sealing between valve gap 3 and valve body 1, and O type circle 10 can increase the sealing between valve rod 2 and valve gap 3.Valve gap 3 adopts casting to make mostly, and valve rod 2 is iron and steel material quality, and setscrew nut 9 can make valve rod 2 be located by connecting in valve gap 3, and avoids the damage that valve rod 2 and valve gap 3 unlike material use break-in to produce for a long time.
Described flashboard 5 is coated with rubber layer, prevents flashboard 5 by flow-induced corrosion.
The utility model also comprises connecting tube import and outlet, and import is provided with internal thread, and outlet is provided with outside thread.During use, can directly with import, export the pipeline mated, also can add at import or export the pipeline valve such as safety check 12 grade connecing coupling as required.
The utility model open and close operate, and the special spanner of high magnetic must be adopted during use to carry out operating.When special spanner is positioned to encrypt the shrinkage pool 62 on lid 6, pin 7 is upwards drawn into upper post holes 61, departs from lower post holes 31, now rotating spanner completely, gets final product the valve rod 2 that turn is connected with encryption lid 6, and then is opened by flashboard 5; If do not use special spanner, under the effect of spring 8, pin 7 is arranged in lower post holes 31, and part is embedded in post holes 61, encryption lid 6 and valve gap 3 is blocked, cannot rotate.
Above-described, be only preferred embodiment of the present utility model, the scope that this practicality is implemented can not be limited, every equalization change of doing according to the utility model claim and decoration, all should still belong in scope that the utility model contains.
Claims (5)
1. a hard seal gate valve, comprise valve body, valve rod, valve gap and flashboard, valve body and valve gap are fixedly connected to form cavity, and flashboard is connected with valve gap by valve rod, it is characterized in that: also comprise the encryption device being arranged at and being connected above valve gap and with valve rod, encryption device comprises encryption lid and pin; The inner upper post holes being provided with the degree of depth and being more than or equal to pin of encryption lid; Valve gap top is provided with the lower post holes that and the degree of depth chimeric with pin is less than pin.
2. hard seal gate valve according to claim 1, is characterized in that: upper post holes built with spring, the degree of depth of upper post holes equal pin and compressive state its length with.
3. hard seal gate valve according to claim 1, is characterized in that: valve body is provided with two baffle plates of inclination; Baffle plate one end is connected to valve body, and the other end is affixed on the side of flashboard just; Two baffle plates are affixed on gate valve dual-side respectively.
4. hard seal gate valve according to claim 1, is characterized in that: valve gap and valve body connection part are provided with seal washer, and valve rod and valve gap connection part are axially provided with setscrew nut and multiple O type circle successively.
5. hard seal gate valve according to claim 1, is characterized in that: described flashboard is coated with rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520427639.8U CN204985969U (en) | 2015-06-19 | 2015-06-19 | Hard -sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520427639.8U CN204985969U (en) | 2015-06-19 | 2015-06-19 | Hard -sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985969U true CN204985969U (en) | 2016-01-20 |
Family
ID=55120337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520427639.8U Active CN204985969U (en) | 2015-06-19 | 2015-06-19 | Hard -sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985969U (en) |
-
2015
- 2015-06-19 CN CN201520427639.8U patent/CN204985969U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |