CN214662432U - Corrugated pipe stop valve - Google Patents
Corrugated pipe stop valve Download PDFInfo
- Publication number
- CN214662432U CN214662432U CN202023340183.1U CN202023340183U CN214662432U CN 214662432 U CN214662432 U CN 214662432U CN 202023340183 U CN202023340183 U CN 202023340183U CN 214662432 U CN214662432 U CN 214662432U
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- China
- Prior art keywords
- valve
- sealing
- valve rod
- bellows
- corrugated pipe
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- 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 72
- 239000000945 filler Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract 2
- 230000006978 adaptation Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 17
- 239000012535 impurity Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a bellows stop valve, which comprises a valve body, a valve cover, a valve rod, a valve clack and a valve seat, wherein a flow passage is arranged in the valve body, the valve cover is arranged at the upper end of the valve body, a filler for sealing and matching the valve cover and the valve rod is arranged in the valve cover, the valve rod penetrates through the valve cover and extends into the flow passage in the valve body to be connected with the valve clack, and the valve seat is arranged in the flow passage and is used for forming sealing and matching with the valve clack; a sealing cavity communicated with the flow passage is arranged in the valve body around the valve rod, a corrugated pipe is arranged in the sealing cavity, the corrugated pipe is sleeved on the periphery of the valve rod, a first positioning ring is clamped between the valve cover and the valve body, a second positioning ring is arranged at the position, located in the sealing cavity, of the valve rod, one end of the corrugated pipe abuts against the first positioning ring, and the other end of the corrugated pipe abuts against the second positioning ring; and a sealing seat is also arranged in the sealing cavity, and a sealing gasket which is propped against the peripheral side of the valve rod is arranged on the sealing seat. The utility model discloses completely cut off bellows and fluid, can promote the life and the result of use of bellows.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a bellows stop valve.
Background
The existing corrugated pipe stop valve comprises a valve body, a valve cover, a valve clack, a valve rod, a corrugated pipe and a driving piece, wherein the valve body is connected with the valve cover through a screw or a flange, an inflow channel and an outflow channel are arranged on the valve body, a valve cavity is arranged between the inflow channel and the outflow channel, the valve clack is in linkage fit with the valve rod, the corrugated pipe is sleeved on the valve rod, filler is arranged between the valve rod and the valve cover, the lower end of the corrugated pipe is welded with the valve rod or the valve clack, and the upper end of the corrugated pipe is welded with the valve cover, so that the corrugated pipe can prevent fluid from directly contacting the filler. However, the bellows of the bellows stop valve with such a structure is in direct contact with fluid, some granular impurities usually exist in the fluid, the granular impurities are easily adhered to the bellows, and after long-term use, the attached impurities on the bellows are more and more, which seriously affects the expansion and contraction performance of the bellows, so that the bellows is easily damaged in the forced stretching process of the bellows, and further the service life and the use effect of the bellows are reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bellows stop valve, the utility model discloses isolated bellows and fluid can avoid impurity to adhere to on the bellows, play the guard action to the bellows, can promote the life and the result of use of bellows.
In order to achieve the above object, the utility model provides a following technical scheme: the corrugated pipe stop valve comprises a valve body, a valve cover, a valve rod, a valve clack and a valve seat, wherein a flow channel is arranged in the valve body, the valve cover is arranged at the upper end of the valve body, filler used for sealing and matching the valve cover and the valve rod is arranged in the valve cover, the valve rod penetrates through the valve cover and extends into the flow channel in the valve body to be connected with the valve clack, and the valve seat is arranged in the flow channel and used for forming sealing and matching with the valve clack; a sealing cavity communicated with the flow channel is arranged in the valve body around the valve rod, a corrugated pipe is arranged in the sealing cavity, the corrugated pipe is sleeved on the periphery of the valve rod, a first positioning ring is clamped between the valve cover and the valve body, a second positioning ring is arranged at the position, located in the sealing cavity, of the valve rod, one end of the corrugated pipe abuts against the first positioning ring, and the other end of the corrugated pipe abuts against the second positioning ring; and a sealing seat is further arranged in the sealing cavity, and a sealing gasket which is abutted against the periphery of the valve rod is arranged on the sealing seat.
Through adopting above-mentioned technical scheme, set up the bellows in the valve rod periphery, utilize first position circle and second position circle to fix a position the bellows, set up the seal receptacle in the seal chamber, install the sealed pad that offsets with valve rod week side on the seal receptacle, sealed pad forms seal structure with the valve rod, avoided the fluid to enter into the seal chamber, be about to bellows and fluid isolated to come, can avoid impurity to adhere to on the bellows, play the guard action to the bellows, can promote the life and the result of use of bellows.
The utility model discloses further set up to, the seal receptacle includes base, clamping ring and locking screw, be equipped with the support step on the inner wall in sealed chamber, the base sets up on supporting the step, the base up end is equipped with the seal groove, sealed the pad inlays to be established in the seal groove, the clamping ring sets up on the base, locking screw screws after running through clamping ring, base in proper order and supporting the step and screws, impels the clamping ring to seal the pad and presses admittedly in the seal groove.
Through adopting above-mentioned technical scheme, can play the sealed effect between seal receptacle and the valve rod, this structure dismouting is very convenient simultaneously, does benefit to the maintenance operation in earlier stage equipment and later stage.
The utility model discloses further set up to, the sealed up terminal surface is equipped with a plurality of first constant head tanks that are concentric settings, and the lower terminal surface of sealed pad is equipped with a plurality of second constant head tanks that are concentric settings, be equipped with on the clamping ring with the first location of first constant head tank looks adaptation is protruding, be equipped with on the base with the second location of second constant head tank looks adaptation is protruding.
Through adopting above-mentioned technical scheme, can not only make the installation of sealed pad more firm, can strengthen sealed effect of filling up moreover.
The utility model discloses further set up to, first constant head tank and the crisscross setting of second constant head tank.
Through adopting above-mentioned technical scheme, can further promote the fastness of sealed pad installation.
The utility model discloses further set up to, sealed the being equipped with on the pad supports the ripple sealing at the valve rod periphery.
Through adopting above-mentioned technical scheme, can further promote the frictional force between sealed pad and the valve rod, avoid fluid to produce and leak.
The utility model discloses further set up to, be provided with multichannel annular location concave part along the axial on the valve rod, the second position circle is the elasticity material, be equipped with on the second position circle with the annular location convex part of annular location concave part looks adaptation.
Through adopting above-mentioned technical scheme, the valve rod axial can be followed to the second position circle and slided to when annular location convex part on the second position circle supported on annular location concave part, accomplish the location of second position circle, thereby can adjust the pretightning force of bellows, be convenient for adjust the bellows at different operating modes.
The utility model discloses further set up to, press from both sides between valve gap and the first locating ring and be equipped with the upper seal pad, press from both sides between valve body and the first locating ring and be equipped with the lower seal pad.
Through adopting above-mentioned technical scheme, can promote the leakproofness of being connected between valve gap and the valve body.
The utility model discloses further set up to, be equipped with on the first position circle and support the sealing washer in the valve rod periphery.
Through adopting above-mentioned technical scheme, can promote the leakproofness between first retainer ring and the valve rod, avoid fluid to leak from the clearance between the two.
The utility model discloses further set up to, the valve clack is including being used for the connecting portion that are connected with the valve rod and being used for constituting sealed complex sealing with the disk seat, sealing is connected with connecting portion through the connecting screw.
Through adopting above-mentioned technical scheme, when the sealing of valve clack was worn and torn because of long-term the use, only need change the sealing can, have material saving's advantage.
The utility model discloses further set up to, be equipped with the circular slot that supplies the nut of connecting screw to sink in the sealing, it has sealed end cap to peg graft on the circular slot.
Through adopting above-mentioned technical scheme, can isolate connecting screw and fluid and come, prevent that connecting screw from rustting and leading to the later stage to be difficult to dismantle the operation.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a valve flap; 5. a valve seat; 6. a flow channel; 7. a filler; 8. sealing the cavity; 9. a bellows; 10. a first positioning ring; 11. a second positioning ring; 12. a sealing seat; 13. a gasket; 14. a base; 15. pressing a ring; 16. locking screws; 17. supporting a step; 18. a sealing groove; 19. a first positioning groove; 20. a second positioning groove; 21. a first positioning projection; 22. a second positioning projection; 23. a corrugated seal portion; 24. an annular positioning recess; 25. an annular positioning boss; 26. an upper seal gasket; 27. a lower seal gasket; 28. a seal ring; 29. a connecting portion; 30. a sealing part; 31. a connecting screw; 32. a circular groove; 33. and (6) sealing the plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): the corrugated pipe stop valve shown in the attached figures 1 and 2 comprises a valve body 1, a valve cover 2, a valve rod 3, a valve clack 4 and a valve seat 5, wherein a flow channel 6 is arranged in the valve body 1, the valve cover 2 is arranged at the upper end of the valve body 1, a filler 7 used for sealing and matching the valve cover 2 and the valve rod 3 is arranged in the valve cover 2, the valve rod 3 penetrates through the valve cover 2 and extends into the flow channel 6 in the valve body 1 to be connected with the valve clack 4, the valve seat 5 is arranged in the flow channel 6 and used for forming sealing and matching with the valve clack 4, and the valve seat 5 and the valve body 1 are integrated; a sealing cavity 8 communicated with the flow channel 6 is arranged in the valve body 1 around the valve rod 3, a corrugated pipe 9 is arranged in the sealing cavity 8, the corrugated pipe 9 is sleeved on the periphery of the valve rod 3, a first positioning ring 10 is clamped between the valve cover 2 and the valve body 1, a second positioning ring 11 is arranged at the position, located in the sealing cavity 8, of the valve rod 3, one end of the corrugated pipe 9 abuts against the first positioning ring 10, the other end of the corrugated pipe 9 abuts against the second positioning ring 11, and two ends of the corrugated pipe 9 are respectively welded on the first positioning ring 10 and the second positioning ring 11; still be equipped with seal receptacle 12 in the seal chamber 8, install on the seal receptacle 12 with the sealed pad 13 that 3 week sides of valve rod offseted, sealed pad 13 forms seal structure with valve rod 3, has avoided the fluid to enter into seal chamber 8, is about to bellows 9 and fluid completely cut off, can avoid impurity to adhere to on bellows 9, plays the guard action to bellows 9, can promote bellows 9's life and result of use.
As shown in fig. 2, the seal holder 12 includes a base 14, a pressing ring 15 and a locking screw 16, a supporting step 17 is arranged on the inner wall of the seal cavity 8, the base 14 is arranged on the supporting step 17, a seal groove 18 is arranged on the upper end surface of the base 14, the seal gasket 13 is embedded in the seal groove 18, the pressing ring 15 is arranged on the base 14, and the locking screw 16 sequentially penetrates through the pressing ring 15, the base 14 and the supporting step 17 and then is screwed, so that the pressing ring 15 presses and fixes the seal gasket 13 in the seal groove 18. This structure can play the sealed effect between seal receptacle 12 and the valve rod 3, and this structure dismouting is very convenient simultaneously, does benefit to the maintenance operation in earlier stage equipment and later stage.
As shown in fig. 2, the upper end surface of the sealing gasket 13 is provided with a plurality of first positioning grooves 19 which are concentrically arranged, the lower end surface of the sealing gasket 13 is provided with a plurality of second positioning grooves 20 which are concentrically arranged, the pressing ring 15 is provided with a first positioning protrusion 21 which is matched with the first positioning grooves 19, and the base 14 is provided with a second positioning protrusion 22 which is matched with the second positioning grooves 20. The design not only can ensure that the sealing gasket 13 is more firmly installed, but also can enhance the sealing effect of the sealing gasket 13.
As shown in fig. 2, the first positioning grooves 19 and the second positioning grooves 20 are staggered, so that the installation firmness of the gasket 13 can be further improved.
As shown in fig. 2, the gasket 13 is provided with a corrugated sealing portion 23 abutting against the outer periphery of the valve rod 3, so that the friction between the gasket 13 and the valve rod 3 can be further improved, and the fluid can be prevented from leaking.
As shown in fig. 2, a plurality of annular positioning concave portions 24 are axially arranged on the valve rod 3, the second positioning ring 11 is made of an elastic material, and an annular positioning convex portion 25 matched with the annular positioning concave portions 24 is arranged on the second positioning ring 11. The second locating ring 11 can slide along the axial direction of the valve rod 3, and when the annular locating convex part 25 on the second locating ring 11 abuts against the annular locating concave part 24, the second locating ring 11 is located, so that the pre-tightening force of the corrugated pipe 9 can be adjusted, and the corrugated pipe 9 can be adjusted conveniently under different working conditions.
As shown in fig. 1, an upper sealing gasket 26 is interposed between the bonnet 2 and the first positioning ring 10, and a lower sealing gasket 27 is interposed between the valve body 1 and the first positioning ring 10, so that the sealing performance of the connection between the bonnet 2 and the valve body 1 can be improved.
As shown in fig. 1, the first positioning ring 10 is provided with a sealing ring 28 abutting against the outer periphery of the valve rod 3, so that the sealing performance between the first positioning ring 10 and the valve rod 3 can be improved, and fluid leakage from a gap between the first positioning ring 10 and the valve rod 3 can be avoided.
As shown in fig. 1, the valve flap 4 comprises a connecting portion 29 for connecting with the valve rod 3 and a sealing portion 30 for forming a sealing fit with the valve seat 5, the sealing portion 30 is connected with the connecting portion 29 through a connecting screw 31, when the sealing portion 30 of the valve flap 4 is worn due to long-term use, only the sealing portion 30 needs to be replaced, and the valve flap has the advantage of saving materials.
As shown in fig. 1, a circular groove 32 for the nut of the connection screw 31 to sink into is arranged on the sealing portion 30, and a sealing plug 33 is inserted into the circular groove 32, so that the connection screw 31 can be isolated from the fluid, and the connection screw 31 is prevented from rusting to cause difficulty in later-stage disassembly operation.
The working principle is as follows: the utility model discloses set up bellows 9 in valve rod 3 periphery, utilize first position circle 10 and second position circle 11 to fix a position bellows 9, set up seal receptacle 12 in seal chamber 8, install the sealed pad 13 that offsets with valve rod 3 week side on the seal receptacle 12, sealed pad 13 forms seal structure with valve rod 3, avoided the fluid to enter into seal chamber 8, be about to bellows 9 and fluid isolated, can avoid impurity to adhere to on bellows 9, play the guard action to bellows 9, can promote bellows 9's life and result of use.
Claims (10)
1. The corrugated pipe stop valve comprises a valve body (1), a valve cover (2), a valve rod (3), a valve clack (4) and a valve seat (5), wherein a flow channel (6) is arranged in the valve body (1), the valve cover (2) is arranged at the upper end of the valve body (1), a filler (7) used for sealing and matching the valve cover (2) and the valve rod (3) is arranged in the valve cover (2), the valve rod (3) penetrates through the valve cover (2) and extends into the flow channel (6) in the valve body (1) to be connected with the valve clack (4), and the valve seat (5) is arranged in the flow channel (6) and used for forming sealing and matching with the valve clack (4); the method is characterized in that: a sealing cavity (8) communicated with the flow channel (6) is arranged in the valve body (1) around the valve rod (3), a corrugated pipe (9) is arranged in the sealing cavity (8), the corrugated pipe (9) is sleeved on the periphery of the valve rod (3), a first positioning ring (10) is clamped between the valve cover (2) and the valve body (1), a second positioning ring (11) is arranged at the position, located in the sealing cavity (8), of the valve rod (3), one end of the corrugated pipe (9) abuts against the first positioning ring (10), and the other end of the corrugated pipe (9) abuts against the second positioning ring (11); and a sealing seat (12) is further arranged in the sealing cavity (8), and a sealing gasket (13) which is abutted against the peripheral side of the valve rod (3) is arranged on the sealing seat (12).
2. The bellows shut-off valve of claim 1, wherein: seal receptacle (12) include base (14), clamping ring (15) and locking screw (16), be equipped with on the inner wall of sealed chamber (8) and support step (17), base (14) set up on supporting step (17), base (14) up end is equipped with seal groove (18), sealed pad (13) are inlayed and are established in seal groove (18), clamping ring (15) set up on base (14), locking screw (16) are screwed after running through clamping ring (15), base (14) and support step (17) in proper order, make clamping ring (15) press sealed pad (13) admittedly in seal groove (18).
3. The bellows shut-off valve of claim 2, wherein: sealed pad (13) up end is equipped with a plurality of first constant head tank (19) that are concentric settings, and the lower terminal surface of sealed pad (13) is equipped with a plurality of second constant head tank (20) that are concentric settings, be equipped with on clamping ring (15) with first location arch (21) of first constant head tank (19) looks adaptation, be equipped with on base (14) with second location arch (22) of second constant head tank (20) looks adaptation.
4. The bellows shut-off valve of claim 3, wherein: the first positioning grooves (19) and the second positioning grooves (20) are arranged in a staggered mode.
5. The bellows shut-off valve of claim 1, wherein: and a corrugated sealing part (23) abutting against the periphery of the valve rod (3) is arranged on the sealing gasket (13).
6. The bellows shut-off valve of claim 1, wherein: be provided with multichannel annular location concave part (24) along the axial on valve rod (3), second position circle (11) are the elastic material, be equipped with on second position circle (11) with annular location convex part (25) of annular location concave part (24) looks adaptation.
7. The bellows shut-off valve of claim 1, wherein: an upper sealing gasket (26) is clamped between the valve cover (2) and the first positioning ring (10), and a lower sealing gasket (27) is clamped between the valve body (1) and the first positioning ring (10).
8. The bellows shut-off valve of claim 1, wherein: and a sealing ring (28) abutting against the periphery of the valve rod (3) is arranged on the first positioning ring (10).
9. The bellows shut-off valve of claim 1, wherein: the valve clack (4) comprises a connecting part (29) used for being connected with the valve rod (3) and a sealing part (30) used for forming sealing fit with the valve seat (5), and the sealing part (30) is connected with the connecting part (29) through a connecting screw (31).
10. The bellows shut-off valve of claim 9, wherein: the sealing part (30) is provided with a circular groove (32) for the nut of the connecting screw (31) to sink into, and the circular groove (32) is spliced with a sealing plug (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340183.1U CN214662432U (en) | 2020-12-30 | 2020-12-30 | Corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340183.1U CN214662432U (en) | 2020-12-30 | 2020-12-30 | Corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214662432U true CN214662432U (en) | 2021-11-09 |
Family
ID=78506768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023340183.1U Expired - Fee Related CN214662432U (en) | 2020-12-30 | 2020-12-30 | Corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214662432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325179A (en) * | 2022-07-04 | 2022-11-11 | 浙江安构控制阀科技有限公司 | Liquid-gas separation and discharge method and regulating valve with same |
-
2020
- 2020-12-30 CN CN202023340183.1U patent/CN214662432U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325179A (en) * | 2022-07-04 | 2022-11-11 | 浙江安构控制阀科技有限公司 | Liquid-gas separation and discharge method and regulating valve with same |
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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 |
Granted publication date: 20211109 |