CN109915648A - A kind of ultralow temperature automatic blow off valve - Google Patents
A kind of ultralow temperature automatic blow off valve Download PDFInfo
- Publication number
- CN109915648A CN109915648A CN201711313055.8A CN201711313055A CN109915648A CN 109915648 A CN109915648 A CN 109915648A CN 201711313055 A CN201711313055 A CN 201711313055A CN 109915648 A CN109915648 A CN 109915648A
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- CN
- China
- Prior art keywords
- valve
- nut
- prevention sleeve
- bearing block
- valve rod
- 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.)
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The present invention relates to a kind of ultralow temperature automatic blow off valve, including valve body, valve seat, valve deck and valve rod, valve seat is installed on body cavity, valve plate engaged therewith is equipped in valve seat, valve deck is installed on body top, bearing block is installed at the top of valve deck, valve rod is supported on bearing block vertically, the top of valve rod is equipped with handwheel, the bottom end of valve rod is threadedly coupled with valve plate, valve rod section between handwheel and bearing block top surface is equipped with instruction device, instruction device includes instruction nut, the indicating graduation of nut rotating prevention sleeve and nut rotating prevention sleeve outer wall, instruction nut is rotatably connected in valve rod, nut rotating prevention sleeve is coaxially socketed on the outside of instruction nut, the bottom of nut rotating prevention sleeve is fixedly connected with the top surface of bearing block, the side of indicating graduation is equipped with observation slot on nut rotating prevention sleeve.
Description
Technical field
The present invention relates to valve fields, and in particular to petroleum pipeline dark rod flat plate gate valve.
Background technique
Flat gate valve is suitable for the feed-lines such as natural gas, petroleum, chemical industry, environmental protection, urban duct, burning line, emptying
In system and storage device, it is used as opening and closing device.Do not have to indicate the aobvious of valve body folding condition on the valve bonnet of existing flat gate valve
Listed be hung on gate valve of the cardboard for being labeled with open/close states or iron sheet is usually used as prompt, operated in this way by showing device, worker
The shortcomings that be: 1, be listed prompt influence operated by handwheel, overall structure is unsightly；2, it is listed and is easy to fall off, obscures, cause safe thing
Therefore and mark inaccuracy.
Summary of the invention
The purpose of the present invention is to provide the dark rod flat plate gate valves that one kind can indicate valve plate open state.
The technical scheme adopted by the invention is as follows:
A kind of ultralow temperature automatic blow off valve, including valve body, valve seat, valve deck and valve rod, the valve seat are installed on body cavity, valve seat
Interior to be equipped with valve plate engaged therewith, the valve deck is installed on body top, is equipped with bearing block, the valve rod at the top of the valve deck
It is supported on bearing block vertically, the top of the valve rod is equipped with handwheel, and the bottom end of the valve rod is threadedly coupled with valve plate, the handwheel
Valve rod section between bearing block top surface is equipped with instruction device, the instruction device include instruction nut, nut rotating prevention sleeve and
The indicating graduation of nut rotating prevention sleeve outer wall, the instruction nut are rotatably connected in valve rod, and the nut rotating prevention sleeve is coaxially socketed on instruction
The outside of nut, the bottom of nut rotating prevention sleeve are fixedly connected with the top surface of bearing block, indicating graduation on the nut rotating prevention sleeve
Side is equipped with observation slot.
Further, the valve rod is equipped with the boss limited in vertical direction with upper wall on the inside of valve deck.
Still further, the valve body and valve cover chamber are equipped with sealing ring.
After taking above technical scheme, the invention has the benefit that
Band ovable valve stem rotates when hand wheel rotating, and valve rod is supported on bearing block, the movement only rotated without generating vertical direction,
The up and down motion of vertical direction occurs with the rotation of valve plate for the valve plate that valve stem top is threadedly coupled, realize gate valve unlatching and
Closure；The instruction nut being threadedly coupled on valve rod moves up and down under the limitation of nut rotating prevention sleeve with the rotation of valve rod, refers to
Show that nut is corresponding with the indicating graduation on nut rotating prevention sleeve when moving, indicate the opening degree of valve plate, operator is operating
When the working condition of flat gate valve can be intuitively understood by the scale relationship of observation instruction nut instruction, avoid accidentally grasping
Make.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: valve body 1, valve deck 2, valve seat 3, valve rod 4, bearing block 5, valve plate 6, handwheel 7 indicate nut 8, nut rotating prevention sleeve
9, sealing ring 10, boss 11 observes slot 12.
Specific embodiment
A specific embodiment of the invention is further described below in conjunction with attached drawing:
As shown, a kind of ultralow temperature automatic blow off valve, including valve body 1, valve seat 3, valve deck 2 and valve rod 4, the valve seat 3 are installed
In being equipped with valve plate 6 engaged therewith in 1 inner cavity of valve body, the valve seat 3, the valve deck 2 is installed on 1 top of valve body, the valve body 1
Sealing ring 10 is equipped between valve deck 2.Bearing block 5 is installed at the top of the valve deck 2, the valve rod 4 is supported on bearing block 3 vertically,
The top of the valve rod 4 is equipped with handwheel 7, and the bottom end of the valve rod 4 is threadedly coupled with valve plate 6, and the valve rod 4 is equipped with and valve deck
The boss 11 that 2 inside upper walls limit in vertical direction, the valve rod section between 5 top surface of the handwheel 7 and bearing block are equipped with instruction dress
It sets, the instruction device includes the indicating graduation for indicating nut 8, nut rotating prevention sleeve 9 and nut rotating prevention sleeve outer wall, the instruction
Nut 9 is rotatably connected in valve rod 4, and the nut rotating prevention sleeve 9 is coaxially socketed on the outside of instruction nut 8, the bottom of nut rotating prevention sleeve 9 with
The top surface of bearing block 5 is fixedly connected, and the side of indicating graduation is equipped with observation slot 12 on the nut rotating prevention sleeve.
Claims (3)
1. a kind of ultralow temperature automatic blow off valve, including valve body, valve seat, valve deck and valve rod, the valve seat are installed on body cavity, valve
Valve plate engaged therewith is equipped in seat, the valve deck is installed on body top, is equipped with bearing block, the valve at the top of the valve deck
Bar is supported on bearing block vertically, and the top of the valve rod is equipped with handwheel, and the bottom end of the valve rod is threadedly coupled with valve plate, feature
It is, the valve rod section between the handwheel and bearing block top surface is equipped with instruction device, and the instruction device includes instruction nut, spiral shell
The indicating graduation of female rotating prevention sleeve and nut rotating prevention sleeve outer wall, the instruction nut are rotatably connected in valve rod, and the nut rotating prevention sleeve is same
Axle sleeve is connected to the outside of instruction nut, and the bottom of nut rotating prevention sleeve is fixedly connected with the top surface of bearing block, the nut rotating prevention sleeve
The side of upper indicating graduation is equipped with observation slot.
2. a kind of ultralow temperature automatic blow off valve according to claim 1, which is characterized in that the valve rod is equipped with and valve deck
The boss that inside upper wall limits in vertical direction.
3. a kind of ultralow temperature automatic blow off valve according to claim 1, which is characterized in that the valve body is equipped with valve cover chamber
Sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313055.8A CN109915648A (en) | 2017-12-12 | 2017-12-12 | A kind of ultralow temperature automatic blow off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313055.8A CN109915648A (en) | 2017-12-12 | 2017-12-12 | A kind of ultralow temperature automatic blow off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915648A true CN109915648A (en) | 2019-06-21 |
Family
ID=66957175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711313055.8A Pending CN109915648A (en) | 2017-12-12 | 2017-12-12 | A kind of ultralow temperature automatic blow off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109915648A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120722A (en) * | 2020-03-04 | 2020-05-08 | 德维阀门铸造（苏州）股份有限公司 | Pneumatic connecting throttle valve indicating mechanism |
-
2017
- 2017-12-12 CN CN201711313055.8A patent/CN109915648A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120722A (en) * | 2020-03-04 | 2020-05-08 | 德维阀门铸造（苏州）股份有限公司 | Pneumatic connecting throttle valve indicating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190621 |