CN203797016U - High temperature gate valve - Google Patents
High temperature gate valve Download PDFInfo
- Publication number
- CN203797016U CN203797016U CN201420185164.1U CN201420185164U CN203797016U CN 203797016 U CN203797016 U CN 203797016U CN 201420185164 U CN201420185164 U CN 201420185164U CN 203797016 U CN203797016 U CN 203797016U
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- CN
- China
- Prior art keywords
- valve
- high temperature
- piston
- valve rod
- piston cylinder
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- Expired - Fee Related
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Abstract
The utility model discloses a high temperature gate valve. The high temperature gate valve comprises a valve body, a slide plate, a valve rod, and a valve cap, wherein the valve cap is fixedly arranged at the top of the valve body; the slide plate is movably arranged inside the valve body and is connected with the valve rod; the valve rod penetrates through the middle of the valve cap, turns upwards, and is connected with an opening device. The temperature gate valve is characterized in that the opening device comprises a piston barrel and a piston; the piston barrel is fixed onto the top of the valve cap; the piston moves up and down inside the piston barrel, and is guided by a guide roller; the piston is fixedly connected with the valve rod. The high temperature gate valve has the function of pneumatic opening and closing, the opening and closing actions are stable and reliable, sealing is effectively protected, the sealing performance is good, and the high temperature gate valve is suitable for a high temperature condition.
Description
Technical field:
The utility model relates to a kind of improvement invention of high temperature cut-off valve.
Background technique:
Gate valve refers to the valve that closure member (flashboard) moves along the Vertical direction of path center line, and gate valve is mainly used as to cut off in pipeline, the applied range of gate valve.The gate valve of prior art, adopts manual or electronic unfolding mode conventionally, but in some high-risk occasions, obviously manually with electronic all improper.In addition, the up and down of existing gate valve rod can not have good guiding, so gate valve valve rod in the time opening or close easily causes monolateral pressure and destroys sealing sealing, also has, the high temperature applied environment of high temperature cut-off valve is harsher, and the sealing reliability that how to ensure gate valve is also to need to consider.
Summary of the invention:
For the deficiencies in the prior art, the purpose of this utility model aims to provide one and has Pneumatic opening function, and switching motion is reliable and stable, effectively protection sealing, and good seal performance, is applicable to the high temperature cut-off valve that high temperature occasion is used.
The technical solution adopted in the utility model is: a kind of high temperature cut-off valve, comprise valve body, flashboard, valve rod and valve gap, valve gap is fixed at valve body top, flashboard activity is located in valve body and is connected with valve rod, valve rod is connected with opening device through backward in the middle of valve gap, it is characterized in that: described opening device comprises piston cylinder and piston, and piston cylinder is fixed on valve gap top, piston up and down setting in piston cylinder is led by guide pillar, and piston is fixedly connected with described valve rod.
Adopt after technique scheme; the utility model can move up and down to realize by the upper and lower end air inlet promotion piston of piston cylinder the pneumatic opening and closing function of gate valve; simultaneously; the moving up and down of piston obtained guide pillar and well led; so valve rod up and down also just can obtain good guiding; so model utility not only possesses Pneumatic opening function, and switching motion is reliable and stable, effectively protects the sealing of gate valve.
Described piston cylinder is fixedly assembled by upper end cap, circular pipe and lower end cap, lower end cap is through the stuffing box gland that is provided with the inside and outside O type sealing of band in the through hole of valve rod, stuffing box gland is fixed by backing plate, the bottom of lower end cap is provided with the tie-plate that backing plate is compressed, and is fixedly connected with valve gap by piston cylinder described in tie-plate.Adopt after technique scheme, the assembling of piston cylinder is simple, and can ensure excellent sealing between valve rod and piston cylinder.
Described valve gap is made up of enclosing cover, inner cap and gland, inside be covered on the upper shed of body cavity, sealing between inner cap and body cavity is compressed by described gland, described enclosing cover is fixedly connected with described valve body after gland is compressed, in described enclosing cover, be provided with guide pin bushing the activity of valve rod is led, in described inner cap, be provided with filler the activity of valve rod is sealed.Adopt after technique scheme, the up and down guiding that can also obtain guide pin bushing of valve rod, makes guiding better, and it is better that above-mentioned Seal Design also makes the sealing reliability of gate valve in addition, is applicable to high temperature occasion and uses.
Brief description of the drawings:
The utility model has the following drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
As shown in Figure 1, high temperature cut-off valve of the present utility model, comprise valve body 18, flashboard 17, valve rod 11 and valve gap, valve gap is fixed at valve body 18 tops, described valve gap is made up of enclosing cover 10, inner cap 15 and gland 14, inner cap 15 is located at the upper shed of valve body 18 inner chambers, sealing 16 between inner cap 15 and valve body 18 inner chambers is compressed by described gland 14, described enclosing cover 10 is fixedly connected with described valve body 18 after gland 14 is compressed, in described enclosing cover 10, be provided with guide pin bushing 9 activity of valve rod 11 is led, in described inner cap 15, be provided with filler 13 activity of valve rod 11 is sealed; Described flashboard 17 activities are located in valve body 18 and are connected with valve rod 11, valve rod 11 is connected with opening device through backward in the middle of valve gap, described opening device comprises piston cylinder and piston 2, piston cylinder is fixed on valve gap top, piston 2 up and down setting in piston cylinder is led by guide pillar 4, and piston 2 is fixedly connected with described valve rod 11; Described piston cylinder is fixedly assembled by upper end cap 1, circular pipe 3 and lower end cap 7, lower end cap 7 is through the stuffing box gland 5 that is provided with the inside and outside O type sealing of band in the through hole of valve rod 11, stuffing box gland 5 is fixed by backing plate 6, the bottom of lower end cap 7 is provided with the tie-plate 8 that backing plate 6 is compressed, and is fixedly connected with valve gap by piston cylinder described in tie-plate 8.
Claims (3)
1. a high temperature cut-off valve, comprise valve body, flashboard, valve rod and valve gap, valve gap is fixed at valve body top, flashboard activity is located in valve body and is connected with valve rod, valve rod is connected with opening device through backward in the middle of valve gap, it is characterized in that: described opening device comprises piston cylinder and piston, and piston cylinder is fixed on valve gap top, piston up and down setting in piston cylinder is led by guide pillar, and piston is fixedly connected with described valve rod.
2. a kind of high temperature cut-off valve as claimed in claim 1, it is characterized in that: described piston cylinder is fixedly assembled by upper end cap, circular pipe and lower end cap, lower end cap is through the stuffing box gland that is provided with the inside and outside O type sealing of band in the through hole of valve rod, stuffing box gland is fixed by backing plate, the bottom of lower end cap is provided with the tie-plate that backing plate is compressed, and is fixedly connected with valve gap by piston cylinder described in tie-plate.
3. a kind of high temperature cut-off valve as claimed in claim 1, it is characterized in that: described valve gap is made up of enclosing cover, inner cap and gland, inside be covered on the upper shed of body cavity, sealing between inner cap and body cavity is compressed by described gland, described enclosing cover is fixedly connected with described valve body after gland is compressed, in described enclosing cover, be provided with guide pin bushing the activity of valve rod is led, in described inner cap, be provided with filler the activity of valve rod is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185164.1U CN203797016U (en) | 2014-04-04 | 2014-04-04 | High temperature gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185164.1U CN203797016U (en) | 2014-04-04 | 2014-04-04 | High temperature gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797016U true CN203797016U (en) | 2014-08-27 |
Family
ID=51379228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420185164.1U Expired - Fee Related CN203797016U (en) | 2014-04-04 | 2014-04-04 | High temperature gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195281A (en) * | 2016-07-20 | 2016-12-07 | 武汉协特阀门科技有限公司 | Balanced type pneumatic repid cut-off valve |
-
2014
- 2014-04-04 CN CN201420185164.1U patent/CN203797016U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195281A (en) * | 2016-07-20 | 2016-12-07 | 武汉协特阀门科技有限公司 | Balanced type pneumatic repid cut-off valve |
| CN106195281B (en) * | 2016-07-20 | 2018-11-06 | 武汉协特阀门科技有限公司 | Balanced type pneumatic repid cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150404 |
|
| EXPY | Termination of patent right or utility model |