CN203239955U - Butterfly valve double-valve-shaft structure - Google Patents
Butterfly valve double-valve-shaft structure Download PDFInfo
- Publication number
- CN203239955U CN203239955U CN 201320250941 CN201320250941U CN203239955U CN 203239955 U CN203239955 U CN 203239955U CN 201320250941 CN201320250941 CN 201320250941 CN 201320250941 U CN201320250941 U CN 201320250941U CN 203239955 U CN203239955 U CN 203239955U
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- valve
- shaft
- plate
- valve plate
- butterfly
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Abstract
The utility model discloses a butterfly valve double-valve-shaft structure. The butterfly valve double-valve-shaft structure comprises a valve body, a valve seat and a valve plate, wherein the valve seat is arranged inside the valve body, and the valve plate is arranged inside the valve seat through valve shafts. The butterfly valve double-valve-shaft structure is characterized in that the valve shafts include the upper valve shaft and the lower valve shaft, the upper valve shaft is arranged on the upper portion of the valve body, the lower end of the upper valve shaft extends to the upper portion of the valve plate, the lower valve shaft is arranged on the lower portion of the valve body, the upper end of the lower valve shaft extends to the lower portion of the valve plate, and the thickness of the middle of the valve plate is smaller than both the thickness of the upper portion of the valve plate and the thickness of the lower portion of the valve plate. The butterfly valve double-valve-shaft structure has the advantages that the double-valve-shape structure is formed by the upper valve shaft and the lower valve shaft, therefore, the valve plate can normally rotate around the upper valve shaft and the lower valve shaft, no valve shaft penetrates through the middle of the valve plate, the thickness of the middle of the valve plate can be reduced, a larger liquid flowing passageway is guaranteed to be arranged when the valve plate is opened, and the flow capacity of a butterfly valve is enhanced.
Description
Technical field
The utility model relates to the butterfly valve technical field, particularly a kind of butterfly valve bivalve axle construction.
Background technique
Referring to illustrated in figures 1 and 2, the butterfly valve of prior art is single valve axle construction, and namely valve shaft 40 directly passes valve body 10, valve seat 20 and valve plate 30, the regular shape of valve plate 30, the thickness of the upper, middle and lower of valve plate 30 is all the same, can not strengthen the negotiability of butterfly valve.
The model utility content
Technical problem to be solved in the utility model is for shortcomings and deficiencies of the prior art, and a kind of butterfly valve bivalve axle construction is provided, and this butterfly valve bivalve axle construction can reduce the valve plate interior thickness, strengthens the negotiability of butterfly valve, to address the above problem.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of butterfly valve bivalve axle construction, comprise valve body, valve seat, valve plate, described valve seat is arranged in the valve body, described valve plate is located in the valve seat by the valve shaft axle, it is characterized in that, described valve shaft comprises valve shaft and lower valve shaft, described upper valve shaft axle is located at described valve body top, the top of described valve plate is stretched in the lower end of described upper valve shaft, described lower valve shaft axle is located at described valve body lower portion, the bottom of described valve plate is stretched in the upper end of described lower valve shaft, and the interior thickness of described valve plate is less than top thickness and the bottom thickness of described valve plate.
In a kind of preferred embodiment of the present utility model, the middle part tow sides of described valve plate are tubaeform concave surface, the outward opening of tubaeform concave surface.
Owing to having adopted technological scheme as above, the beneficial effects of the utility model are: the bivalve axle construction that upper valve shaft and lower valve shaft form not only can make valve plate around upper and lower valve shaft normal rotation, and the valve plate middle part does not have valve shaft to pass, can reduce the valve plate interior thickness, guarantee to have larger liquid communication passage when valve plate is opened, strengthened the negotiability of butterfly valve.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the single valve axle butterfly valve of prior art.
Fig. 2 is that the A-A of Fig. 1 is to view.
Fig. 3 is the structural representation of a kind of butterfly valve bivalve of the utility model axle construction.
Fig. 4 is that the B-B of Fig. 3 is to view.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 3 and shown in Figure 4, a kind of butterfly valve bivalve axle construction comprises valve body 100, valve seat 200, valve plate 300, upper valve shaft 410, lower valve shaft 420, valve seat 200 is arranged in the valve body 100, valve plate 300 is located in the valve seat 200 by upper valve shaft 410 and lower valve shaft 420 axles, upper valve shaft 410 axles are located at valve body 100 tops, the top 310 of valve plate 300 is stretched in the lower end of upper valve shaft 410, lower valve shaft 420 axles are located at valve body 100 bottoms, the bottom 330 of valve plate 300 is stretched in the upper end of lower valve shaft 420, so valve plate 300 middle parts 320 do not have valve shaft to pass, middle part 320 thickness of valve plate 300 are less than top 310 thickness and bottom 330 thickness of valve plate 300, in the present embodiment, middle part 320 tow sides of valve plate 300 are tubaeform concave surface 340, the outward opening of tubaeform concave surface 340.
The bivalve axle construction that upper valve shaft 410 and lower valve shaft 420 form not only can make valve plate 300 around upper and lower valve shaft 410,420 normal rotation, and valve plate 300 middle parts 320 do not have valve shaft to pass, can reduce valve plate 300 middle parts 320 thickness, guarantee to have larger liquid communication passage when valve plate 320 is opened, strengthened the negotiability of butterfly valve.
Above demonstration and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. butterfly valve bivalve axle construction, comprise valve body, valve seat, valve plate, described valve seat is arranged in the valve body, described valve plate is located in the valve seat by the valve shaft axle, it is characterized in that, described valve shaft comprises valve shaft and lower valve shaft, described upper valve shaft axle is located at described valve body top, the top of described valve plate is stretched in the lower end of described upper valve shaft, described lower valve shaft axle is located at described valve body lower portion, the bottom of described valve plate is stretched in the upper end of described lower valve shaft, and the interior thickness of described valve plate is less than top thickness and the bottom thickness of described valve plate.
2. a kind of butterfly valve bivalve axle construction as claimed in claim 1 is characterized in that, the middle part tow sides of described valve plate are tubaeform concave surface, the outward opening of tubaeform concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250941 CN203239955U (en) | 2013-05-09 | 2013-05-09 | Butterfly valve double-valve-shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250941 CN203239955U (en) | 2013-05-09 | 2013-05-09 | Butterfly valve double-valve-shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239955U true CN203239955U (en) | 2013-10-16 |
Family
ID=49317253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320250941 Expired - Fee Related CN203239955U (en) | 2013-05-09 | 2013-05-09 | Butterfly valve double-valve-shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969050A (en) * | 2014-04-24 | 2014-08-06 | 中国北方发动机研究所(天津) | Backpressure regulating device of single-cylinder engine |
-
2013
- 2013-05-09 CN CN 201320250941 patent/CN203239955U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969050A (en) * | 2014-04-24 | 2014-08-06 | 中国北方发动机研究所(天津) | Backpressure regulating device of single-cylinder engine |
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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: 20131016 Termination date: 20170509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |