CN206299843U - A kind of leafy check-valves - Google Patents
A kind of leafy check-valves Download PDFInfo
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- CN206299843U CN206299843U CN201621251061.6U CN201621251061U CN206299843U CN 206299843 U CN206299843 U CN 206299843U CN 201621251061 U CN201621251061 U CN 201621251061U CN 206299843 U CN206299843 U CN 206299843U
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- valve
- leafy
- check
- weight
- rotating shaft
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Abstract
The utility model discloses a kind of leafy check-valves, the leafy check-valves includes valve buckle, is arranged at several valve seats and valve disc in the valve buckle, and the weight and connecting rod for being arranged at valve buckle side；Each valve disc is connected by rotating shaft with valve buckle respectively, and the weight is connected by connecting rod with each rotating shaft；Described each valve seat in the vertical direction is obliquely set, and sealing ring is provided with described each valve seat, and the leafy check-valves is closed down the sealing ring that each valve disc is compressed on correspondence valve seat respectively.Because each valve disc compresses sealing ring under the influence of self gravitation, therefore the weight of weight is reduced, reduce the starting differential pressure of valve.
Description
Technical field
The utility model is related to field of ventilation equipment, more particularly to a kind of leafy check-valves.
Background technology
When leafy check-valves is applied in ventilating system, sealing effect when should meet valve closing between valve disc and valve seat
Really, while the starting differential pressure that also meet when valve is opened by closed mode is smaller.
In leafy check-valves of the prior art, valve seat is vertically arranged, and when the valve is closed, valve disc places one's entire reliance upon and passes through
Increase the weight of weight to ensure sealing effectiveness, so as to the weight clamping torque for causing valve increases, further result in valve and open
Pressure difference increase before valve needed for opening and after valve, reduces the ventilation effect of system.
It can be seen that, prior art could be improved and improve.
Utility model content
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of leafy check-valves, purport
Sealing effectiveness when valve closing is both met, while reducing the starting differential pressure of valve.
In order to achieve the above object, the utility model takes following technical scheme：
A kind of leafy check-valves, including valve buckle, are arranged at several valve seats in the valve buckle, Yi Jishe with being connected in series
It is placed in the weight and connecting rod of valve buckle side；Each valve seat is correspondingly arranged on a valve disc, and each valve disc passes through rotating shaft and valve respectively
Frame is connected, and the weight is connected by connecting rod with each rotating shaft, it is characterised in that described each valve seat in the vertical direction is inclined
Ground is set, and sealing ring is provided with described each valve seat, and the leafy check-valves is closed down each valve disc and presses respectively
Sealing ring on tight correspondence valve seat.
In described leafy check-valves, described each valve disc is connected by a rotating shaft through valve buckle with valve buckle respectively.
In described leafy check-valves, the rotating shaft includes being arranged at the short axle at valve disc two ends, the two of each valve disc
End is connected by short axle with valve buckle respectively.
In described leafy check-valves, described each rotating shaft is connected by spiral arm with connecting rod respectively with one end of connecting rod homonymy
Connect, one end of each spiral arm and rod hinge connection, the other end of each spiral arm is fixedly connected respectively at corresponding rotating shaft.
In described leafy check-valves, the weight includes heavy punch piece and movement weight rod, one end of the movement weight rod and weight
Piece is connected, and the other end of the movement weight rod is fixedly connected with one end of the connecting rod side of the rotating shaft in the middle part of valve buckle.
Beneficial effect：
The utility model provides a kind of leafy check-valves, and the leafy check-valves includes valve buckle, is arranged at the valve buckle
Several interior valve seats and valve disc, and it is arranged at the weight and connecting rod of valve buckle side；Each valve disc passes through rotating shaft and valve respectively
Frame is connected, and the weight is connected by connecting rod with each rotating shaft；Described each valve seat in the vertical direction is obliquely set, described
Sealing ring is provided with each valve seat, the leafy check-valves is closed down each valve disc and compresses respectively on correspondence valve seat
Sealing ring.Because each valve disc compresses sealing ring under the influence of self gravitation, therefore the weight of weight is reduced, reduced
The starting differential pressure of valve.
Brief description of the drawings
The stereogram of a kind of leafy check-valves that Fig. 1 is provided for the utility model.
Fig. 2 is the A-A of the leafy check-valves shown in Fig. 1 to sectional view.
Specific embodiment
The utility model provides a kind of leafy check-valves, to make the purpose of this utility model, technical scheme and effect more
Clear, clear and definite, the embodiment that develops simultaneously referring to the drawings is further described to the utility model.It should be appreciated that this place is retouched
The specific embodiment stated only is used to explain the utility model, is not used to limit the utility model.
Fig. 1 and Fig. 2 is referred to, in order to make it easy to understand, 5 valve discs are shown in figure, but the utility model is not limited to 5 valves
Leaf.
The utility model provides a kind of leafy check-valves, including valve buckle 10, is arranged at being connected in series in the valve buckle 10
Several valve seats 20, and the weight 60 and connecting rod 50 for being arranged at the side of valve buckle 10；Each valve seat 20 is correspondingly arranged on one
Valve disc 30, each valve disc 30 is connected by rotating shaft 40 with valve buckle 10 respectively, and the weight 60 is by connecting rod 50 and each rotating shaft 40
Connection, it is characterised in that described each in the vertical direction of valve seat 20 is obliquely set, and is provided with described each valve seat 20 close
Seal 21, the leafy check-valves is closed down the sealing ring 21 that each valve disc 30 is compressed on correspondence valve seat 20 respectively.
Specifically, the weight 60 is connected by connecting rod 50 with each rotating shaft 40, when valve is closed, in weight
Under the Action of Gravity Field of hammer 60, each valve disc 30 compresses its corresponding sealing ring 21；Because each valve seat is being erected in the utility model
Nogata is set with being inclined upwardly, and when valve is closed, valve disc 30 pushes tight seal 21 in the Action of Gravity Field of itself,
So that the weight reduction of required weight 60, i.e.,：Same valve seal effect can be also realized using lighter weight, therefore is reduced
The weight clamping torque of the leafy check-valves, therefore the pressure difference before valve needed for valve opening and after valve is reduced.
Further, in described leafy check-valves, described each valve disc 30 is respectively by turning through valve buckle 10
Axle 40 is connected with valve buckle 10, and because the rotating shaft 40 is a bearing, therefore the two ends of rotating shaft 40 have accurate axiality so that
Resistance reduction in the rotation process of valve disc 30, further reduces the starting differential pressure of valve.
In order to save the manufacturing cost of rotating shaft 40 and reduce the weight of valve, the rotating shaft 40 in the utility model can also
The short axle for being arranged at the two ends of valve disc 30 is made, the two ends of each valve disc 30 are connected by short axle with valve buckle 10 respectively.
Further, described each rotating shaft 40 is connected by spiral arm 51 with connecting rod 50 respectively with one end of the homonymy of connecting rod 50,
One end of each spiral arm is hinged with connecting rod 50, and the other end of each spiral arm 51 is fixed respectively at corresponding rotating shaft 40 and connected
Connect.The gravity of the weight 60 can be applied in each rotating shaft 40 by connecting rod 50, so that valve disc 30 compresses sealing ring
21.Due to above-mentioned connecting rod 50 and the simple structure of spiral arm 51, leafy check-valves manufacturing cost is reduced.
Further, the weight 60 includes heavy punch piece 601 and movement weight rod 602, one end of the movement weight rod 602 and weight
Piece 601 is connected, and the other end of the movement weight rod 602 is fixed with one end of the side of connecting rod 50 of the rotating shaft 40 for being located at the middle part of valve buckle 10 and connected
Connect, hence in so that the gravity of weight 60 can more uniformly be applied to each rotating shaft 40, when each valve disc 30 compresses sealing ring 21
More stablize, improve the sealing effectiveness of leafy check-valves.
In sum, the utility model provides a kind of leafy check-valves, inclines by by each valve seat in the vertical direction
Tiltedly set, each valve disc compresses sealing ring under the influence of self gravitation, therefore reduce the weight of weight, reduce valve
Starting differential pressure.Connected by the way that the other end of the movement weight rod of weight is fixed with one end of the connecting rod side of the rotating shaft being located in the middle part of valve buckle
Connect so that the gravity of weight can more uniformly be applied to each rotating shaft, each valve disc is more stablized when compressing sealing ring, improved
The sealing effectiveness of leafy check-valves, while reduce further the starting differential pressure of leafy check-valves.
It is understood that for those of ordinary skills, can according to the technical solution of the utility model and
The design of its utility model is subject to equivalent or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (5)
1. a kind of leafy check-valves, including valve buckle, is arranged at several valve seats in the valve buckle, and set with being connected in series
In the weight and connecting rod of valve buckle side；Each valve seat is correspondingly arranged on a valve disc, and each valve disc passes through rotating shaft and valve buckle respectively
Connection, the weight is connected by connecting rod with each rotating shaft, it is characterised in that described each valve seat in the vertical direction is obliquely
Set, sealing ring is provided with described each valve seat, the leafy check-valves is closed down each valve disc and compresses respectively
Sealing ring on correspondence valve seat.
2. leafy check-valves according to claim 1, it is characterised in that described each valve disc runs through valve by respectively
The rotating shaft of frame is connected with valve buckle.
3. leafy check-valves according to claim 1, it is characterised in that the rotating shaft includes being arranged at the short of valve disc two ends
Axle, the two ends of each valve disc are connected by short axle with valve buckle respectively.
4. the leafy check-valves according to claim any one of 1-3, it is characterised in that described each rotating shaft and connecting rod homonymy
One end be connected with connecting rod by spiral arm respectively, one end of each spiral arm and rod hinge connection, each spiral arm it is another
End is fixedly connected respectively at corresponding rotating shaft.
5. leafy check-valves according to claim 4, it is characterised in that the weight includes heavy punch piece and movement weight rod, institute
The one end for stating movement weight rod is connected with heavy punch piece, the other end of the movement weight rod and the one of the connecting rod side of the rotating shaft being located in the middle part of valve buckle
End is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251061.6U CN206299843U (en) | 2016-11-22 | 2016-11-22 | A kind of leafy check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251061.6U CN206299843U (en) | 2016-11-22 | 2016-11-22 | A kind of leafy check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299843U true CN206299843U (en) | 2017-07-04 |
Family
ID=59212412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621251061.6U Active CN206299843U (en) | 2016-11-22 | 2016-11-22 | A kind of leafy check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206299843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369195A (en) * | 2016-11-22 | 2017-02-01 | 广东申菱环境系统股份有限公司 | Multi-leaf check valve |
-
2016
- 2016-11-22 CN CN201621251061.6U patent/CN206299843U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369195A (en) * | 2016-11-22 | 2017-02-01 | 广东申菱环境系统股份有限公司 | Multi-leaf check valve |
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