CN210770273U - Corrugated pipe stop valve - Google Patents
Corrugated pipe stop valve Download PDFInfo
- Publication number
- CN210770273U CN210770273U CN201921811914.0U CN201921811914U CN210770273U CN 210770273 U CN210770273 U CN 210770273U CN 201921811914 U CN201921811914 U CN 201921811914U CN 210770273 U CN210770273 U CN 210770273U
- Authority
- CN
- China
- Prior art keywords
- valve
- bellows
- nut
- rod
- clack
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000000945 filler Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims description 23
- 210000004907 gland Anatomy 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 11
- 239000010439 graphite Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a bellows stop valve, including valve body and valve rod, the both sides shaping has the valve opening in the valve body, the valve opening adopts the arc structure, the middle part is provided with the valve clack in the valve body, connect soon on the valve clack the valve rod, be close to on the peripheral lateral wall of valve rod valve clack department welds the bellows group. Has the advantages that: the utility model discloses a design of filler, seal cover and bellows group for the stop valve is inside can realize double seal, has not only effectively avoided damaging because of the filler and has leaded to the drop in bellows stop valve sealing performance to take place to leak, has improved the sealing performance of stop valve, has effectively avoided the valve rod vibration because of the valve clack vibration arouses moreover, has improved the stability that bellows stop valve used.
Description
Technical Field
The utility model relates to a stop valve field, concretely relates to bellows stop valve.
Background
The corrugated pipe stop valve is also called a corrugated pipe sealing stop valve, and a metal barrier is formed between a fluid medium and the atmosphere through automatic roll welding so as to ensure the design of zero leakage of the valve rod.
The existing corrugated pipe stop valve mainly adopts graphite packing to seal, and because the graphite packing is corroded and damaged due to long-term contact with a mechanical medium, the sealing performance of the stop valve is reduced, valve rod vibration is often caused due to valve clack vibration, the use stability of the stop valve is reduced, and therefore a novel corrugated pipe stop valve is urgently needed to solve the existing problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art not enough, now propose bellows stop valve, solved current bellows stop valve and mainly adopted graphite packing to seal, because graphite packing leads to graphite packing to be corroded and damaged with the mechanical medium contact for a long time, reduce stop valve sealing performance, and often can arouse the valve rod vibration because of the valve clack vibration, reduce stop valve stability in use's problem.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a bellows stop valve, including valve body and valve rod, the both sides shaping has the valve opening in the valve body, the valve opening adopts the arc structure, the middle part is provided with the valve clack in the valve body, it has connect soon to go up the valve clack the valve rod, be close to on the peripheral lateral wall of valve rod valve clack department welds the bellows group, be provided with the valve gap in the valve body upper end, the valve gap with it has hexagon bolt to connect soon between the valve body, hexagon bolt one side is provided with the metal packing ring, valve gap bottom middle part is close to bellows group department is provided with the seal cover, valve gap upper end with it has the filler to fill between the valve rod, the filler upper end is provided with gland, peripheral lateral wall upper end of valve gap articulates there is jack bolt, jack bolt runs through gland.
By adopting the technical scheme, through the filler the seal cover and the design of bellows group for double sealing can be realized to stop valve inside, not only effectively avoided leading to bellows stop valve sealing performance to descend because of the filler damage and take place to leak, improved the sealing performance of stop valve, effectively avoided the valve rod vibration because of valve clack vibration arouses moreover, improved the stability that bellows stop valve used.
Further, it has valve-stem nut to connect to revolve on the valve rod, be provided with set screw on the valve-stem nut lateral wall, the mode that valve-stem nut upper end was pressed through the card is fixed with the nut gland, last keeping away from of valve-stem nut the nut gland top is fixed with the hand wheel through the mode that the card pressed, the hand wheel with be fixed with the valve cap through the mode that the card pressed between the valve-stem nut.
Through adopting above-mentioned technical scheme, the hand wheel valve-stem nut the design of valve cap for this stop valve open more convenient.
Furthermore, the valve clack is fixedly connected with the valve rod in a clamping and pressing sealing mode, and the valve rod is the same as the corrugated pipe valve rod in the prior art in structure.
By adopting the technical scheme, the valve rod can realize the rotation of the valve clack, and then the on-off of the valve hole in the valve body is controlled.
Furthermore, the sealing sleeve is connected with the valve cover through a screw, a sealing structure is adopted between the sealing sleeve and the corrugated pipe group, and the corrugated pipe group is made of stainless steel.
By adopting the technical scheme, through the corrugated pipe stop valve and the sealing sleeve are matched, not only is the primary sealing of the stop valve realized, but also the valve rod vibration caused by the valve clack vibration is effectively avoided, and the use stability of the stop valve is ensured.
Furthermore, the filler is made of pure graphite, and the valve cover is connected with the filler pressure lever through the jack bolt and the hexagon nut.
Through adopting above-mentioned technical scheme, through the secondary seal of stop valve can be realized to the packing.
Furthermore, the positioning screw is connected with the valve rod nut in a clamping and pressing mode.
By adopting the technical scheme, the positioning screw can realize the reliable limit of the valve rod nut.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
mainly adopt graphite packing to seal for solving current bellows stop valve, because graphite packing leads to graphite packing to be corroded the damage for a long time with mechanical medium contact, reduce stop valve sealing performance, and often can arouse the valve rod vibration because of the valve clack vibration, reduce stop valve stability in use's problem, the utility model discloses a packing, seal cover and bellows group's design for double sealing can be realized to stop valve inside, not only effectively avoided leading to bellows stop valve sealing performance to descend because of packing damages and take place to leak, improved the sealing performance of stop valve, effectively avoided the valve rod vibration because of the valve clack vibration arouses moreover, improved the stability that bellows stop valve used.
Drawings
Fig. 1 is a front sectional view of the bellows stop valve of the present invention;
fig. 2 is a front view of the bellows stop valve of the present invention.
The reference numerals are explained below:
1. a valve body; 2. a valve cover; 3. a valve flap; 4. a metal washer; 5. a hexagon bolt; 6. a valve stem; 7. a bellows group; 8. a filler; 9. a packing gland; 10. a jack bolt; 11. a hexagonal nut; 12. a valve stem nut; 13. a nut gland; 14. a hand wheel; 15. a bonnet; 16. a set screw; 17. sealing sleeves; 18. valve hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the bellows stop valve in this embodiment includes a valve body 1 and a valve rod 6, valve holes 18 are formed in two sides of the valve body 1, the valve holes 18 are of an arc structure, a valve flap 3 is disposed in the middle of the valve body 1, the valve rod 6 is screwed to the upper end of the valve flap 3, a bellows group 7 is welded to a side wall of a peripheral side wall of the valve rod 6 near the valve flap 3, a valve cover 2 is disposed in the upper end of the valve body 1, a hex bolt 5 is screwed between the valve cover 2 and the valve body 1, a metal washer 4 is disposed on one side of the hex bolt 5, a sealing sleeve 17 is disposed at a middle portion of a bottom end of the valve cover 2 near the bellows group 7, a packing 8 is filled between the upper end of the valve cover 2 and the valve rod 6, a packing gland 9 is disposed at the upper end of the upper end, The design of the sealing sleeve 17 and the bellows group 7 enables the interior of the stop valve to realize double sealing, thereby not only effectively avoiding the leakage caused by the reduction of the sealing performance of the bellows stop valve due to the damage of the packing 8 and improving the sealing performance of the stop valve, but also effectively avoiding the vibration of the valve rod 6 caused by the vibration of the valve clack 3 and improving the use stability of the bellows stop valve, the upper end of the valve rod 6 is screwed with a valve rod nut 12, one side wall of the valve rod nut 12 is provided with a positioning screw 16, the upper end of the valve rod nut 12 is fixed with a nut gland 13 in a clamping and pressing way, a hand wheel 14 is fixed on the valve rod nut 12 far away from the upper part of the nut gland 13 in a clamping and pressing way, a valve cap 15 is fixed between the hand wheel 14 and the valve rod nut 12 in a clamping and pressing way, the design of the hand wheel 14, the valve rod nut 12 and the valve cap, the valve rod 6 has the same structure as the corrugated pipe valve rod 6 in the prior art, and the valve clack 3 can rotate through the valve rod 6, so that the on-off of the valve hole 18 in the valve body 1 is controlled.
As shown in fig. 1, in this embodiment, the sealing sleeve 17 is connected with the valve cover 2 by screws, a sealing structure is adopted between the sealing sleeve 17 and the bellows group 7, the bellows group 7 is made of stainless steel, through the cooperation of the bellows stop valve and the sealing sleeve 17, not only is the primary sealing of the stop valve realized, but also the vibration of the valve rod 6 caused by the vibration of the valve flap 3 is effectively avoided, the stability of the stop valve is ensured, the packing 8 is made of pure graphite, the valve cover 2 is connected with the packing 8 through the jack bolt 10 and the hexagon nut 11, the secondary sealing of the stop valve can be realized through the packing 8, the positioning screw 16 is connected with the valve rod nut 12 through the clamping manner, and the reliable limit of the valve rod nut 12 can be realized.
The specific implementation process of this embodiment is as follows: only need install valve body 1 during the use on treating the pipeline that dams, and make valve opening 18 and the inside intercommunication of pipeline of treating damming, can use, in the use, because pack 8, seal cover 17 and bellows group 7's design, make the inside dual seal that can realize of stop valve, not only effectively avoided leading to bellows stop valve sealing performance to descend and take place to leak because of packing 8 damages, the sealing performance of stop valve has been improved, and effectively avoided the vibration of valve rod 6 because of valve clack 3 vibration arouses, the stability of bellows stop valve use has been improved.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (6)
1. Bellows stop valve, its characterized in that: the valve comprises a valve body (1) and a valve rod (6), valve holes (18) are formed in two sides in the valve body (1), the valve holes (18) are of an arc-shaped structure, a valve clack (3) is arranged in the middle of the valve body (1), the valve rod (6) is screwed on the upper end of the valve clack (3), a corrugated pipe group (7) is welded on the side wall of the peripheral side wall of the valve rod (6) close to the valve clack (3), a valve cover (2) is arranged in the upper end of the valve body (1), a hexagonal bolt (5) is screwed between the valve cover (2) and the valve body (1), a metal gasket (4) is arranged on one side of the hexagonal bolt (5), a sealing sleeve (17) is arranged in the middle of the bottom end of the valve cover (2) close to the corrugated pipe group (7), a filler (8) is filled between the upper end of the valve cover (, the upper end of the peripheral side wall of the valve cover (2) is hinged with a jack bolt (10), the jack bolt (10) penetrates through the packing gland (9), and the top end of the jack bolt (10) is screwed with a hexagon nut (11).
2. The bellows shut-off valve of claim 1, wherein: it has valve-stem nut (12) to connect to revolve on valve rod (6), be provided with set screw (16) on valve-stem nut (12) the lateral wall, valve-stem nut (12) upper end is fixed with nut gland (13) through the mode that the card pressed, keep away from on valve-stem nut (12) nut gland (13) top is fixed with hand wheel (14) through the mode that the card pressed, hand wheel (14) with between valve-stem nut (12) through the mode that the card pressed that the valve cap (15) is fixed with.
3. The bellows shut-off valve of claim 1, wherein: the valve clack (3) and the valve rod (6) are fixedly connected in a clamping and pressing sealing mode, and the valve rod (6) is identical to a corrugated pipe valve rod (6) in the prior art in structure.
4. The bellows shut-off valve of claim 1, wherein: the sealing sleeve (17) is connected with the valve cover (2) through screws, a sealing structure is adopted between the sealing sleeve (17) and the corrugated pipe group (7), and the corrugated pipe group (7) is made of stainless steel.
5. The bellows shut-off valve of claim 1, wherein: the packing (8) is made of pure graphite, and the valve cover (2) is connected with the compression bar of the packing (8) through the jack bolt (10) and the hexagon nut (11).
6. The bellows shut-off valve of claim 2, wherein: the positioning screw (16) is connected with the valve rod nut (12) in a clamping and pressing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921811914.0U CN210770273U (en) | 2019-10-26 | 2019-10-26 | Corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921811914.0U CN210770273U (en) | 2019-10-26 | 2019-10-26 | Corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210770273U true CN210770273U (en) | 2020-06-16 |
Family
ID=71064499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921811914.0U Expired - Fee Related CN210770273U (en) | 2019-10-26 | 2019-10-26 | Corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210770273U (en) |
-
2019
- 2019-10-26 CN CN201921811914.0U patent/CN210770273U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200616 |