CN205479679U - Bellows stop valve - Google Patents
Bellows stop valve Download PDFInfo
- Publication number
- CN205479679U CN205479679U CN201620207703.6U CN201620207703U CN205479679U CN 205479679 U CN205479679 U CN 205479679U CN 201620207703 U CN201620207703 U CN 201620207703U CN 205479679 U CN205479679 U CN 205479679U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- rod
- bellows
- flap
- 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.)
- Expired - Fee Related
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- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a bellows stop valve, including valve body, valve clack and valve rod, the valve pocket has in the valve body, and the valve clack is installed in this valve pocket, and valve body upper portion is equipped with the valve gap, and the valve rod passes the valve gap, and during this valve rod penetrated the valve pocket of valve body, lower extreme and the valve clack of valve rod were connected, and the lower part cover of valve rod is equipped with the bellows, still installs the ripple shroud on the valve rod, and the lower port department of ripple shroud is equipped with graphite spiral wound gasket, is equipped with carbon packing between the middle part of valve rod and the valve gap, and the lower part of valve rod still is equipped with to weld to be encircled, and the valve clack is the toper structure. The utility model discloses a bellows and graphite spiral wound gasket's sealed setting for stop valve sealing performance is good, and the motion of valve rod is more smooth and easy. Welding ring sum carbon packing's setting for the leakproofness of valve rod obtains dual assurance, has improved the sealing performance of whole stop valve. The valve clack is the toper structure to for the sealed form of the conical surface between valve clack and the valve body, the leakproofness of whole stop valve has also been improved.
Description
Technical field
This utility model relates to valve technology field, particularly to a kind of bellows stop valve.
Background technology
Sylphon seal valve is the brand new technical that the world today is emerging.Its appearance, expands valve
Range, is particularly well-suited to the danger medium piping such as inflammable, explosive and poisonous and to environmental conservation more
Strict occasion；This valve is mainly used in the industries such as oil, chemical industry, power station, is switched off or on pipeline,
So that system is properly functioning；Along with the development of nuclear industry, sylphon seal in the process of radiological materials
Valve is all first-selected good merchantable brand, has far-reaching social benefit.Existing bellows stop valve sealing effectiveness is bad,
Leakage accident easily occurs, and overall structure is unreasonable, and performance is less reliable.
Utility model content
For solving above-mentioned technical problem, the purpose of this utility model is to provide a kind of rational in infrastructure and sealing
Preferably bellows stop valve.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, this utility model is by the following technical programs
Realize: a kind of bellows stop valve, including valve body, flap and valve rod, there is in described valve body valve pocket, institute
Stating flap to be installed in this valve pocket, described valve body top is provided with valve gap, and described valve rod passes described valve gap, and
This valve rod penetrates in the valve pocket of valve body, and the lower end of described valve rod is connected with described flap, the bottom of described valve rod
It is arranged with corrugated tube, described valve rod is also equipped with cover the bellows cover being located on described corrugated tube, this ripple
It is provided with a graphite wound gasket sheet at the lower port of shroud, between middle part and the described valve gap of described valve rod, is provided with stone
Ink filler, described graphite packing is arranged over gland, the bottom of described valve rod be additionally provided with one be positioned at described
Welding ring above flap, described flap is pyramidal structure.
Further, the top of described valve rod is provided with alignment pin and the spacer being set on this valve rod.
Further, the upper end of described valve rod is provided with handwheel by a valve stem nut.
Further, on described valve stem nut, connection has a fuel filler neck.
Further, the top of described valve rod is provided with split nut.
The beneficial effects of the utility model are: be provided with corrugated tube, and ripple on the valve rod in this utility model
Be covered with bellows cover on pipe, at the lower port of bellows cover, be provided with graphite wound gasket sheet, thus corrugated tube and
The sealing of graphite wound gasket sheet is arranged so that stop valve good seal performance, the motion of valve rod is smoothly.Valve rod
And being provided with graphite packing between valve body, the bottom of valve rod is additionally provided with setting of welding ring, welding ring and graphite packing
Put so that the sealing of valve rod obtains dual guarantee, improve the sealing property of overall stop valve.This practicality
Flap in novel is pyramidal structure, thus is conical surface seal form between flap and valve body, also improves whole
The sealing of individual stop valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that this utility model
Advantage and feature can be easier to be readily appreciated by one skilled in the art, thus to protection domain of the present utility model
Make apparent clear and definite defining.
As it is shown in figure 1, a kind of bellows stop valve, including valve body 1, flap 2 and valve rod 3, described valve body
Having valve pocket 101 in 1, described flap 2 is installed in this valve pocket 101, and described valve body 1 top is provided with valve gap
4, described valve rod 3 is through described valve gap 4, and this valve rod 3 penetrates in the valve pocket 101 of valve body 1, described valve
The lower end of bar 3 is connected with described flap 2, and the bottom of described valve rod 3 is arranged with corrugated tube 5, described valve rod 3
On be also equipped with covering the bellows cover 6 being located on described corrugated tube 5, be provided with at the lower port of this bellows cover 6
One graphite wound gasket sheet 7, is provided with graphite packing 8 between middle part and the described valve gap 4 of described valve rod 3, described
Graphite packing 8 is arranged over gland 9, and the bottom of described valve rod 3 is additionally provided with one and is positioned on described flap 2
The welding ring 10 of side, described flap 2 is pyramidal structure.
Furtherly, the top of described valve rod 3 is provided with alignment pin 11 and the spacer being set on this valve rod 3
12, valve rod 3 can be carried out good location and installation by this spacer 12 and alignment pin 11.
Further, the upper end of described valve rod 3 is provided with handwheel 14 by a valve stem nut 13.Valve stem nut
Connect on 13 and have a fuel filler neck 15.The top of described valve rod 3 is provided with split nut 16.By this split nut
16, handwheel 14 locking can be installed on valve rod 3.
In use, when being rotated clockwise handwheel 14, flap 2 declines, can be by the valve pocket 101 of valve body 1
Passage cut off, thus close this stop valve.Counterclockwise rotation hand wheel 14, flap 2 rises, thus
Open this stop valve.
Compared with prior art, the valve rod 3 during this utility model has the advantage that this utility model is pacified
Equipped with corrugated tube 5, and on corrugated tube 5, it is covered with bellows cover 6, at the lower port of bellows cover 6, is provided with stone
Ink spirotallic gasket 7, thus the sealing of corrugated tube 5 and graphite wound gasket sheet 7 is arranged so that stop valve sealing
Can be good, the motion of valve rod is smoothly.Graphite packing 8, the bottom of valve rod 3 it is provided with between valve rod 3 and valve body 1
It is additionally provided with welding ring 10, welding ring 10 and the setting of graphite packing 8 so that the sealing of valve rod 3 obtains double
Heavily ensure, improve the sealing property of overall stop valve.Flap 2 in this utility model is pyramidal structure,
Thus be conical surface seal form between flap 2 and valve body 1, also improve the sealing of whole stop valve.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion, or directly
Connect or be indirectly used in other relevant technical fields, be the most in like manner included in patent protection model of the present utility model
In enclosing.
Claims (5)
1. a bellows stop valve, it is characterised in that: include valve body, flap and valve rod, in described valve body
Having valve pocket, described flap is installed in this valve pocket, and described valve body top is provided with valve gap, and described valve rod passes
Described valve gap, and this valve rod penetrates in the valve pocket of valve body, the lower end of described valve rod is connected with described flap, institute
The bottom stating valve rod is arranged with corrugated tube, described valve rod is also equipped with cover the ripple being located on described corrugated tube
Shroud, is provided with a graphite wound gasket sheet, the middle part of described valve rod and described valve at the lower port of this bellows cover
Being provided with graphite packing between lid, described graphite packing is arranged over gland, and the bottom of described valve rod also sets
Having one to be positioned at the welding ring above described flap, described flap is pyramidal structure.
Bellows stop valve the most according to claim 1, it is characterised in that: the top of described valve rod sets
There are alignment pin and the spacer being set on this valve rod.
Bellows stop valve the most according to claim 1, it is characterised in that: the upper end of described valve rod leads to
Cross a valve stem nut and handwheel is installed.
Bellows stop valve the most according to claim 3, it is characterised in that: connect on described valve stem nut
It is connected to a fuel filler neck.
Bellows stop valve the most according to claim 3, it is characterised in that: the top of described valve rod
Split nut is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207703.6U CN205479679U (en) | 2016-03-17 | 2016-03-17 | Bellows stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207703.6U CN205479679U (en) | 2016-03-17 | 2016-03-17 | Bellows stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479679U true CN205479679U (en) | 2016-08-17 |
Family
ID=56654747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620207703.6U Expired - Fee Related CN205479679U (en) | 2016-03-17 | 2016-03-17 | Bellows stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122502A (en) * | 2016-08-29 | 2016-11-16 | 江苏明汇阀门有限公司 | Bellows stop valve special for chlorine |
| CN110873189A (en) * | 2018-09-03 | 2020-03-10 | 中国石油天然气股份有限公司 | Petroleum pipeline stop valve and petroleum conveying system |
-
2016
- 2016-03-17 CN CN201620207703.6U patent/CN205479679U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122502A (en) * | 2016-08-29 | 2016-11-16 | 江苏明汇阀门有限公司 | Bellows stop valve special for chlorine |
| CN110873189A (en) * | 2018-09-03 | 2020-03-10 | 中国石油天然气股份有限公司 | Petroleum pipeline stop valve and petroleum conveying system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20190317 |