CN102478115A - Convenient valve plate position adjusting structure for butterfly valve - Google Patents
Convenient valve plate position adjusting structure for butterfly valve Download PDFInfo
- Publication number
- CN102478115A CN102478115A CN201010559319XA CN201010559319A CN102478115A CN 102478115 A CN102478115 A CN 102478115A CN 201010559319X A CN201010559319X A CN 201010559319XA CN 201010559319 A CN201010559319 A CN 201010559319A CN 102478115 A CN102478115 A CN 102478115A
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- China
- Prior art keywords
- valve
- valve plate
- convenient
- adjustment
- butterfly
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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.)
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Abstract
The invention discloses a convenient valve plate position adjusting structure for a butterfly valve. The convenient valve plate position adjusting structure is arranged at the lower end of a valve rod on the butterfly valve mainly consisting of the valve rod, a valve body, a valve plate and a seal ring assembly, and comprises an end cover, a screw and a cap, wherein the end cover is fixedly connected to the valve body; the screw is arranged at the central axis of the end cover through threads; and the upper end of the screw abuts against the lower end of the valve rod. By utilizing the convenient valve plate position adjusting structure disclosed by the invention, the adjustment is rapid and convenient, the better matching between the valve plate and the seal ring assembly can be reached more easily through adjustment, and the sealability of the butterfly valve is ensured; and the convenient valve plate position adjusting structure is suitable for butterfly valves of various specifications.
Description
Technical field
The present invention relates to a kind of valve plate position adjustment structure, specifically, the present invention relates to a kind of butterfly valve plate position adjustment structure.
Background technique
The keying of butterfly valve is through the axis rotation around himself in valve body of a discoidal valve plate, thereby reaches the effect that opens and closes or regulate butterfly valve.In this process, the situation that cooperates of seal ring has determined the seal degree of butterfly valve in valve plate and the butterfly valve, if valve plate overlaps with the seal ring center basically, then cooperates situation better, the good airproof performance of butterfly valve; If valve plate and seal ring center contact ratio are bad, then cooperate situation bad, the sealing of butterfly valve is poor.In the using process of butterfly valve, because valve plate and valve rod deadweight cause that the valve plate center moves down, the sealing that valve plate is cooperated with seal ring also can produce certain influence.No matter existing reed valve is in assembling, and still in use, all the position through the adjustment valve plate makes valve plate overlap as far as possible with the seal ring center.The butterfly valve plate adjustment structure of existing technology is located at the lower end of butterfly valve upper valve rod; Comprise the end cap that is fixed on the valve body bottom and be placed in end cap and the valve rod lower end surface between the adjustment pad; Thickness through adjustment adjustment pad; Raise or the reduction valve rod, thereby adjustment is fixedly connected on the position of valve plate on the valve rod.The butterfly valve plate adjustment structure of existing technology can play the effect of adjustment valve plate position; But each adjustment need be pulled down back adjustment adjustment pad with end cap, because the positional error at valve plate and seal ring center is difficult to measurement, therefore; Adjustment is difficult to hold; Sometimes need repeatedly adjustment just can be effective, therefore, adjust more time-consuming, bothersome.
Summary of the invention
The present invention is directed to the deficiency of existing technology, propose a kind of simple in structurely, adjust efficient and convenient, the effective butterfly valve plate position convenient regulating type structure of adjustment.
The present invention realizes technical goal through following technical proposals.
Butterfly valve plate position convenient regulating type structure; It is located at by valve rod, valve body, valve plate and seal ring assembly is the lower end of the butterfly valve upper valve rod formed of main member; Its improvements are: comprise the end cap that is fixedly connected on the valve body, through screw thread be installed on the end cap central axis screw and and cap, the upper end of said screw withstands on the lower end of valve rod.
In the said structure, the screw thread on the said screw is a fine thread.
The present invention compared with prior art has following good effect:
1. simple in structure, easy to manufacture;
2. when needing adjustment, need not to pull down end cap, as long as unclamp and cap; Rotating screw just can raise or reduce valve rod, thereby adjustment is fixedly connected on the position of valve plate on the valve rod; Therefore adjust quick and easy; But limit adjustment, limit are observed valve plate and are cooperated situation with seal ring, therefore make valve plate and seal ring reach the reasonable situation that cooperates than being easier to through adjustment.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Fig. 1 left view.
Embodiment
Below according to accompanying drawing and combine embodiment that the present invention is described further.
Butterfly valve plate shown in the drawings position convenient regulating type structure; It is located at the lower end of the butterfly valve upper valve rod of being made up of for main member valve rod 1, valve body 2, valve plate 6 and seal ring assembly 71; Comprise the end cap 3 that is fixedly connected on the valve body 2, through screw thread be installed on end cap 3 central axis screw 4 and and cap 5, the upper end of screw 4 withstands on the lower end of valve rod 1; Screw thread on the screw 4 is a fine thread.When needing adjustment, need not to pull down end cap 3, as long as unclamp and cap 5, rotating screw 4 just can raise or reduce valve rod 1, thereby adjustment is fixedly connected on the position of valve plate 6 on the valve rod 1, therefore adjusts quick and easy; Screw thread on the screw 4 is a fine thread, can make adjustment more accurate; During adjustment, cooperate situation with seal ring assembly 7, therefore make valve plate 6 and seal ring assembly 7 reach the reasonable situation that cooperates through adjustment, guarantee the sealing of butterfly valve than being easier to but observe valve plate 6 while adjusting.
Claims (2)
1. butterfly valve plate position convenient regulating type structure; It is located at the lower end of the butterfly valve upper valve rod of being made up of for main member valve rod (1), valve body (2), valve plate (6) and seal ring assembly (7) (1); It is characterized in that: comprise the end cap (3) that is fixedly connected on the valve body (2), through screw thread be installed on end cap (3) central axis screw (4) and and cap (5), the upper end of said screw (4) withstands on the lower end of valve rod (1).
2. butterfly valve plate according to claim 1 position convenient regulating type structure is characterized in that: the screw thread on the said screw (4) is a fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010559319XA CN102478115A (en) | 2010-11-25 | 2010-11-25 | Convenient valve plate position adjusting structure for butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010559319XA CN102478115A (en) | 2010-11-25 | 2010-11-25 | Convenient valve plate position adjusting structure for butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102478115A true CN102478115A (en) | 2012-05-30 |
Family
ID=46090844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010559319XA Pending CN102478115A (en) | 2010-11-25 | 2010-11-25 | Convenient valve plate position adjusting structure for butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478115A (en) |
-
2010
- 2010-11-25 CN CN201010559319XA patent/CN102478115A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |