CN202100820U - Collapsing length spacing structure for double-layer corrugated pipe of valve - Google Patents
Collapsing length spacing structure for double-layer corrugated pipe of valve Download PDFInfo
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- CN202100820U CN202100820U CN2011201769713U CN201120176971U CN202100820U CN 202100820 U CN202100820 U CN 202100820U CN 2011201769713 U CN2011201769713 U CN 2011201769713U CN 201120176971 U CN201120176971 U CN 201120176971U CN 202100820 U CN202100820 U CN 202100820U
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- valve
- corrugated
- corrugated pipe
- corrugated header
- header
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Abstract
The utility model relates to a collapsing length spacing structure for a double-layer corrugated pipe of a valve, which is suitable for controlling the collapsing length of the double-layer corrugated pipe of any valve, wherein a first upper corrugated pipe saddle, a second upper corrugated pipe saddle, a lower corrugated pipe saddle, an inner corrugated pipe, and a valve cover press plate are all sleeved on a valve rod; an outer corrugated pipe is sleeved on the inner corrugated pipe; the first upper corrugated pipe saddle is fixed with the valve cover; one end of the inner corrugated pipe is fixed with the second upper corrugated pipe saddle, while the other end thereof is fixed with the lower corrugated pipe saddle; one end of the outer corrugated pipe is fixed with the first upper corrugated pipe saddle, and the other end thereof is fixed with the lower corrugated pipe saddle; the second upper corrugated pipe saddle is fixed with the valve rod; a spacing ring is fixed on the valve cover; and the valve rod is matched with the first upper corrugated pipe saddle and the lower corrugated pipe saddle respectively, and the lower corrugated pipe saddle is matched with the valve cover, the valve cover press plate and the spacing ring respectively. By adopting the collapsing length spacing structure for the double-layer corrugated pipe of the valve, the double-layer corrugated pipe can more easily extend and contract according to the set extending amount and the contracting amount during the opening/closing process of the valve.
Description
Technical field
The utility model relates to a kind of collapsing length limit structure of valve double-ply bellows, is applicable to the control of the double-ply bellows collapsing length of various valves.
Background technique
The applicant in first to file application number be 201010218706.7 and 201020249304.9 Chinese patent; Supply a kind of sylphon seal assembly and had the Bellows valve of this sylphon seal assembly; This technological scheme reasonable in design has been practiced thrift cost of material on the one hand, makes the shorten length of whole valve on the other hand; The stroke of valve switch also shortens, and some are used to that the place of height restriction is arranged is very favorable.
But the collapsing length of the double-ply bellows of this technological scheme is freely, and difficult control generally is to lean on the rigidity of bellows self to accomplish extending amount.When valve opening, valve rod upwards promotes, and the internal layer bellows is compressed; Outer bellows not necessarily is stretched, even if be stretched, its elongation is the stiffness effect that receives bellows; Reach the elongation of predetermined design; Need accurate debugging and design, will reach predetermined decrement after the internal layer bellows compression simultaneously, also need accurate debugging and design; When valve closing, valve rod moves down, and the internal layer bellows is stretched; Outer bellows is compressed; The stretching of internal and external layer bellows and the extending amount of compression also need accurate debugging and design just can reach, and the tired rigidity that is easy to overstep the extreme limit of the wherein one deck bellows in such double-ply bellows suffers damage bellows; Be unfavorable for sealing, produce and reveal.
The model utility content
The purpose of the utility model is to overcome the above-mentioned deficiency that exists in the existing technology; And a kind of reasonable in design is provided, can make with comparalive ease double-ply bellows in the unlatching closing course of valve by elongation of setting and the decrement collapsing length limit structure of valve double-ply bellows of work that stretches
The utility model addresses the above problem the technological scheme that is adopted: a kind of collapsing length limit structure of valve double-ply bellows comprises on valve rod, the valve gap, first corrugated header on the corrugated header, second, corrugated header, inner corrugated pipe, outward corrugated tube, valve gap pressing plate down; Corrugated header on the corrugated header, second on first, corrugated header, inner corrugated pipe, valve gap pressing plate all are sleeved on the valve rod down, and outward corrugated tube is sleeved on the inner corrugated pipe, and corrugated header and valve gap are fixed on first; It is characterized in that: also comprise limited ring; Corrugated header is fixed on described inner corrugated pipe one end and second, and the other end is fixed with following corrugated header; Corrugated header is fixed on described outward corrugated tube one end and first, and the other end is fixed with following corrugated header; Corrugated header and valve rod are fixed on second; Limited ring is fixed on the valve gap; Valve rod respectively with first on corrugated header and following corrugated header cooperate, following corrugated header cooperates with valve gap, valve gap pressing plate, limited ring respectively.
The utility model has the upper valve rod seam having ripple seat bottom surface on the corrugated header on first on valve rod, last ripple seat bottom surface and upper valve rod seam cooperate.
The utility model has the lower valve rod seam having corrugated header upper inner surface down on the corrugated header down on valve rod, following corrugated header upper inner surface and lower valve rod seam cooperate.
The utility model has the valve gap seam having corrugated header upper bottom surface down on the corrugated header down on valve gap, following corrugated header upper bottom surface and valve gap seam cooperate.
The utility model has the limited ring seam down having the corrugated header bottom surface first time on the corrugated header on limited ring, first time corrugated header bottom surface and the cooperation of limited ring seam.
The utility model is having plane on the valve plate gland down having the corrugated header bottom surface second time on the corrugated header on the valve gap pressing plate, plane cooperation on second time corrugated header bottom surface and the valve plate gland.
The utility model compared with prior art has the following advantages and effect: 1, reasonable in design; 2, can make with comparalive ease double-ply bellows in the unlatching closing course of valve by the work of stretching of elongation of setting and decrement; Can protect the collapsing length of bellows to be controlled; Be unlikely because the rigidity of one deck bellows is excessive, cause another layer bellows to bear the situation that the over burdening continued is stretched or compressed.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is that the utility model embodiment is installed in the structural representation on the double-ply bellows valve.
Embodiment
Below in conjunction with accompanying drawing and through embodiment the utility model is described further.
Embodiment: referring to Fig. 1 and Fig. 2, the utility model embodiment comprises on the valve rod 1, valve gap 2, first corrugated header 4 on the corrugated header 3, second, corrugated header 15, inner corrugated pipe 16, outward corrugated tube 17, valve gap pressing plate 18, limited ring 19 down.
Having ripple seat bottom surface 14 on the corrugated header on first 3, on valve rod 1, have upper valve rod seam 13.Last ripple seat bottom surface 14 cooperates with upper valve rod seam 13, moves up and down in the process and can contact and break away from valve rod 1.Last ripple seat bottom surface 14 makes to win with upper valve rod seam 13 goes up corrugated header 3 and valve rod 1 cooperation.
Having corrugated header upper inner surface 11 down on the corrugated header 15 down, on valve rod 1, have lower valve rod seam 12, following corrugated header upper inner surface 11 cooperates with lower valve rod seam 12, moves up and down in the process and can contact and break away from valve rod 1.Following corrugated header upper inner surface 11 makes that with lower valve rod seam 12 corrugated header 15 cooperates with valve rod 1 down.
Having corrugated header upper bottom surface 9 down on the corrugated header 15 down, on valve gap 2, have valve gap seam 10, following corrugated header upper bottom surface 9 cooperates with valve gap seam 10, moves up and down in the process and can contact and break away from valve rod 1.Following corrugated header upper bottom surface 9 makes that with valve gap seam 10 corrugated header 15 cooperates with valve gap 2 down.
Having corrugated header bottom surface 8 first time on the corrugated header 15 down, on limited ring 19, having 7, the first times corrugated header bottom surfaces of limited ring seam 8 and cooperate, moving up and down in the process and can contact and break away from valve rod 1 with limited ring seam 7.First time corrugated header bottom surface 8 makes that with limited ring seam 7 corrugated header 15 cooperates with limited ring 19 down.
Down having corrugated header bottom surface 6 second time on the corrugated header 15, plane 5 cooperates on 5, the second times corrugated header bottom surfaces, plane 6 and valve plate gland having on the valve gap pressing plate 18 on the valve plate gland, moves up and down in the process and can contact and break away from valve rod 1.Plane 5 makes that corrugated headers 15 cooperate with valve gap pressing plate 18 down on second time corrugated header bottom surface 6 and the valve plate gland.
The profile of lower valve rod seam 12 and upper valve rod seam 13 is the conical surface of annular.Plane 5 on the valve plate gland, second time corrugated header bottom surface 6, limited ring seam 7, first time corrugated header bottom surface 8, down corrugated header upper bottom surface 9, valve gap seam 10, corrugated header upper inner surface 11, the profile of going up ripple seat bottom surface 14 be annular plane down.
Concrete job step is following:
1. in the valve opening process, detailed process is following: when being begun by the valve closing state, valve rod 1 begins upwards to stretch; First time corrugated header bottom surface 8 breaks away from limited ring seam 7, and at this moment, inner corrugated pipe 16 is stretched; Outward corrugated tube 17 shrinks, and when valve rod 1 continued upwards to promote, corrugated header bottom surface 6 was withstood in plane 5 contacts second time on the valve plate gland; At this moment, outward corrugated tube 17 is compressed comprehensively, and inner corrugated pipe 16 no longer is stretched and maintains the statusquo; Valve rod 1 continues to promote; When valve gap seam 10 is withstood in ripple seat upper bottom surface 9 contacts instantly; Outward corrugated tube 17 compressions stop and keeping former compressive state, and inner corrugated pipe 16 is stretched through the transition point continued that does not stretch, and inner corrugated pipe 16 stops to stretch and keeping present situation fully when ripple seat bottom surface 14 is withstood in 13 contacts of upper valve rod seam; At this moment, valve is opened fully.In this process; The distance that outward corrugated tube 17 shrinks is limited in the distance of limited ring seam 7 to valve gap seam 10 places, and upper valve rod seam 13 root positions deducted outward corrugated tube 17 contract by distance to the distance of last ripple seat bottom surface 14 when the stretching distance of inner corrugated pipe 16 was limited in valve closing.
In the valve closing process, detailed process is following: when being in opening state fully and being begun by valve, valve rod 1 begins to move down; Upper valve rod seam 13 breaks away from goes up ripple seat bottom surface 14, and inner corrugated pipe 16 begins to shrink, and outward corrugated tube 17 does not extend; When valve rod 1 continues to move down; Following ripple seat upper bottom surface 9 breaks away from valve gap seam face 10, and inner corrugated pipe 16 continues to shrink, and outward corrugated tube 17 begins elongation; Broken away from valve gap seam 10 at following ripple seat 15 and also do not pushed up in the process of limited ring seam 7, valve rod 1 continues to move down, and two kinds of situation can occur; A kind of is that lower valve rod seam 12 at first contacts and withstands down corrugated header upper inner surface 11; At this moment, inner corrugated pipe 16 is compressed to preseting length, and outward corrugated tube 17 can continue elongation; Up to valve closing, outward corrugated tube 17 is no longer by elongation and maintenance present situation; Another kind of situation, first time corrugated header bottom surface 8 is pressed onto limited ring seam 7, and outward corrugated tube 17 no longer extends and maintains the statusquo; Inner corrugated pipe 16 continues compression, and up to valve closing, inner corrugated pipe 16 no longer is compressed and keeps present situation; Whole process finishes, and valve is fully closed.In this process; The distance of outward corrugated tube 17 elongation is limited in the distance of the position of valve gap seam 10 to limited ring seam 7, and the sealing surface of valve plate of opening when the compression distance of inner corrugated pipe 16 is limited in the valve complete opening on valve plate 20 deducts the distance that outward corrugated tube 17 extends to the perpendicular distance of valve body sealing surface 21.
The utility model is controlled the collapsing length of bellows according to bellows collapsing length limiting value, bellows elongation or shrink and can not exceed its limiting value, and can effectively bring into play the flexible advantage of internal and external layer bellows.
Claims (6)
1. the collapsing length limit structure of a valve double-ply bellows comprises on valve rod, the valve gap, first corrugated header on the corrugated header, second, corrugated header, inner corrugated pipe, outward corrugated tube, valve gap pressing plate down; Corrugated header on the corrugated header, second on first, corrugated header, inner corrugated pipe, valve gap pressing plate all are sleeved on the valve rod down, and outward corrugated tube is sleeved on the inner corrugated pipe, and corrugated header and valve gap are fixed on first; It is characterized in that: also comprise limited ring; Corrugated header is fixed on described inner corrugated pipe one end and second, and the other end is fixed with following corrugated header; Corrugated header is fixed on described outward corrugated tube one end and first, and the other end is fixed with following corrugated header; Corrugated header and valve rod are fixed on second; Limited ring is fixed on the valve gap; Valve rod respectively with first on corrugated header and following corrugated header cooperate, following corrugated header cooperates with valve gap, valve gap pressing plate, limited ring respectively.
2. the collapsing length limit structure of valve double-ply bellows according to claim 1 is characterized in that: having ripple seat bottom surface on the corrugated header on first, on valve rod, have the upper valve rod seam, last ripple seat bottom surface and upper valve rod seam cooperate.
3. the collapsing length limit structure of valve double-ply bellows according to claim 1; It is characterized in that: having corrugated header upper inner surface down on the corrugated header down; On valve rod, have the lower valve rod seam, following corrugated header upper inner surface and lower valve rod seam cooperate.
4. the collapsing length limit structure of valve double-ply bellows according to claim 1 is characterized in that: having corrugated header upper bottom surface down on the corrugated header down, on valve gap, have the valve gap seam, following corrugated header upper bottom surface and valve gap seam cooperate.
5. the collapsing length limit structure of valve double-ply bellows according to claim 1; It is characterized in that: having the corrugated header bottom surface first time on the corrugated header down; On limited ring, have the limited ring seam, first time corrugated header bottom surface and limited ring seam cooperate.
6. the collapsing length limit structure of valve double-ply bellows according to claim 1; It is characterized in that: having the corrugated header bottom surface second time on the corrugated header down; Having plane on the valve plate gland on the valve gap pressing plate, the plane cooperates on second time corrugated header bottom surface and the valve plate gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201769713U CN202100820U (en) | 2011-05-30 | 2011-05-30 | Collapsing length spacing structure for double-layer corrugated pipe of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201769713U CN202100820U (en) | 2011-05-30 | 2011-05-30 | Collapsing length spacing structure for double-layer corrugated pipe of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100820U true CN202100820U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201769713U Expired - Fee Related CN202100820U (en) | 2011-05-30 | 2011-05-30 | Collapsing length spacing structure for double-layer corrugated pipe of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605295A (en) * | 2016-03-01 | 2016-05-25 | 马鞍山市润启新材料科技有限公司 | Corrugated pipe valve rod |
| CN113551050A (en) * | 2021-08-31 | 2021-10-26 | 南通世发船舶机械有限公司 | Corrugated pipe valve |
-
2011
- 2011-05-30 CN CN2011201769713U patent/CN202100820U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605295A (en) * | 2016-03-01 | 2016-05-25 | 马鞍山市润启新材料科技有限公司 | Corrugated pipe valve rod |
| CN113551050A (en) * | 2021-08-31 | 2021-10-26 | 南通世发船舶机械有限公司 | Corrugated pipe 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: 20120104 Termination date: 20180530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |