CN106369195A - Multi-leaf check valve - Google Patents
Multi-leaf check valve Download PDFInfo
- Publication number
- CN106369195A CN106369195A CN201611028899.3A CN201611028899A CN106369195A CN 106369195 A CN106369195 A CN 106369195A CN 201611028899 A CN201611028899 A CN 201611028899A CN 106369195 A CN106369195 A CN 106369195A
- Authority
- CN
- China
- Prior art keywords
- valve
- rotating shaft
- leafy
- check
- weight
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a multi-leaf check valve. The multi-leaf check valve comprises a valve frame, a plurality of valve seats, a plurality of valve leaves, a counter weight and a connecting rod, wherein the valve seats and the valve leaves are arranged in the valve frame, and the counter weight and the connecting rod are arranged on the side face of the valve frame. All the valve leaves are connected with the valve frame through rotary shafts correspondingly. The counter weight is connected with all the rotary shafts through the connecting rod. The valve seats are arranged obliquely in the vertical direction. Each valve seat is provided with a sealing ring. When the multi-leaf check valve is in the closed state, the valve leaves tightly press the sealing rings on the corresponding valve seats correspondingly. Due to the fact that the valve leaves tightly press the sealing rings under the action of the gravity of the valve leaves, the weight of the counter weight is reduced, and the opening pressure difference of the valve is reduced.
Description
Technical field
The present invention relates to field of ventilation equipment, particularly to a kind of leafy check-valves.
Background technology
When leafy check-valves are applied in ventilating system, the sealing effect between valve disc and valve seat during valve closing should be met
Really, starting differential pressure when also valve to be met is opened by closed mode simultaneously is less.
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
The weight increasing weight, to ensure sealing effectiveness, thus leading to the weight clamping torque of valve to increase, further resulting in valve and opening
Pressure reduction before opening required valve and after valve increases, and reduces the ventilation effect of system.
It can be seen that, prior art could be improved and improves.
Content of the invention
In view of in place of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of leafy check-valves were it is intended to both
Meet sealing effectiveness during valve closing, reduce the starting differential pressure of valve simultaneously.
In order to achieve the above object, this invention takes technical scheme below:
A kind of leafy check-valves, including valve buckle, are arranged at several valve seats in described valve buckle, and are arranged at being connected in series
The weight of valve buckle side and connecting rod；Each valve seat is correspondingly arranged on a valve disc, and each valve disc passes through rotating shaft with valve buckle even respectively
Connect, described weight is connected with each rotating shaft by connecting rod it is characterised in that each valve seat in the vertical direction described obliquely sets
Put, each valve seat described be provided with sealing ring, described leafy check-valves be closed down each valve disc compress respectively right
Answer the sealing ring on valve seat.
In described leafy check-valves, each valve disc described is connected with valve buckle by a rotating shaft running through valve buckle respectively.
In described leafy check-valves, described rotating shaft includes being arranged at the short axle at valve disc two ends, and the two of each valve disc described
End is connected with valve buckle by short axle respectively.
In described leafy check-valves, each rotating shaft described is connected with connecting rod by spiral arm respectively with one end of connecting rod homonymy
Connect, one end of each spiral arm described and rod hinge connection, the other end of each spiral arm described is fixedly connected respectively at corresponding rotating shaft.
In described leafy check-valves, described weight includes heavy punch piece and movement weight rod, one end of described movement weight rod and weight
Piece connects, and the other end of described 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 invention provides a kind of leafy check-valves, described leafy check-valves include valve buckle, are arranged at some in described valve buckle
Individual valve seat and valve disc, and it is arranged at weight and the connecting rod of valve buckle side；Each valve disc is connected with valve buckle by rotating shaft respectively, institute
State weight to be connected with each rotating shaft by connecting rod；Each valve seat in the vertical direction described is obliquely arranged, each valve seat described
On be provided with sealing ring, described leafy check-valves are closed down each valve disc and compress the sealing on corresponding valve seat respectively
Circle.Because each valve disc compresses sealing ring under the influence of self gravitation, therefore reduce the weight of weight, reduce valve
Starting differential pressure.
Brief description
The axonometric chart of a kind of leafy check-valves that Fig. 1 provides for the present invention.
Fig. 2 is the a-a of the leafy check-valves shown in Fig. 1 to sectional view.
Specific embodiment
The present invention provides a kind of leafy check-valves, for making the purpose of the present invention, technical scheme and effect clearer, bright
Really, develop simultaneously that the present invention is described in more detail for embodiment referring to the drawings.It should be appreciated that described herein be embodied as
Example, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1 and Fig. 2, in order to make it easy to understand, in figure illustrates 5 valve discs, but the present invention is not limited to 5 valve discs.
The present invention provides a kind of leafy check-valves, including valve buckle 10, is arranged at if being connected in series in described valve buckle 10
Dry valve seat 20, and weight 60 and the connecting rod 50 being arranged at valve buckle 10 side；Each valve seat 20 is correspondingly arranged on a valve disc
30, each valve disc 30 is connected with valve buckle 10 by rotating shaft 40 respectively, and described weight 60 is connected with each rotating shaft 40 by connecting rod 50,
It is characterized in that, each valve seat 20 in the vertical direction described is obliquely arranged, and each valve seat 20 described is provided with sealing ring
21, described leafy check-valves are closed down each valve disc 30 and compress the sealing ring 21 on corresponding valve seat 20 respectively.
Specifically, described weight 60 is connected with each rotating shaft 40 by connecting rod 50, when valve is closed, in weight
Under the action of gravity of hammer 60, each valve disc 30 compresses its corresponding sealing ring 21；Due in the present invention each valve seat vertically side
Arrange with being inclined upwardly, when valve is closed, valve disc 30 push tight seal 21 in the action of gravity of itself so that
The weight reduction of required weight 60, it may be assumed that also enabling same valve seal effect using lighter weight, therefore reduces institute
State the weight clamping torque of leafy check-valves, therefore the pressure reduction before the valve needed for valve opening and after valve is reduced.
Further, in described leafy check-valves, each valve disc 30 described runs through turning of valve buckle 10 by one respectively
Axle 40 is connected with valve buckle 10, due to described rotating shaft 40 be a bearing, therefore rotating shaft 40 two ends there is accurate axiality so that
Resistance in valve disc 30 rotation process reduces, and reduces the starting differential pressure of valve further.
In order to save the manufacturing cost of rotating shaft 40 and the weight reducing valve, the rotating shaft 40 in the present invention can also be made
It is arranged at the short axle at valve disc 30 two ends, the two ends of each valve disc 30 are connected with valve buckle 10 by short axle respectively.
Further, each rotating shaft 40 described is connected with connecting rod 50 by spiral arm 51 respectively with one end of connecting rod 50 homonymy,
One end of each spiral arm described is hinged with connecting rod 50, and the other end of each spiral arm 51 described is fixing even respectively at corresponding rotating shaft 40
Connect.The gravity of described weight 60 can be applied in each rotating shaft 40 by connecting rod 50, so that valve disc 30 compression sealing ring
21.Because above-mentioned connecting rod 50 and spiral arm 51 structure are simple, reduce leafy check-valves manufacturing cost.
Further, described weight 60 includes heavy punch piece 601 and movement weight rod 602, one end of described movement weight rod 602 and weight
Piece 601 connects, and the other end of described movement weight rod 602 is fixing even with one end of connecting rod 50 side of the rotating shaft 40 positioned at valve buckle 10 middle part
Connect, hence in so that the gravity of weight 60 can more uniformly be applied to each rotating shaft 40, during each valve disc 30 compression sealing ring 21
More stable, improve the sealing effectiveness of leafy check-valves.
In sum, the invention provides a kind of leafy check-valves, by by each valve seat in the vertical direction obliquely
Setting, each valve disc compresses sealing ring under the influence of self gravitation, therefore reduces the weight of weight, reduces opening of valve
Open pressure reduction.By the other end of the movement weight rod of weight is fixedly connected with one end of the connecting rod side of the rotating shaft in the middle part of valve buckle,
The gravity enabling weight is more uniformly applied to each rotating shaft, more stable during each valve disc compression sealing ring, improves
The sealing effectiveness of leafy check-valves, reduce further the starting differential pressure of leafy check-valves simultaneously.
It is understood that for those of ordinary skills, with technology according to the present invention scheme and its can send out
Bright design in addition equivalent or change, and all these change or replace the guarantor that all should belong to appended claims of the invention
Shield scope.
Claims (5)
1. a kind of leafy check-valves, including valve buckle, are arranged at several valve seats in described valve buckle with being connected in series, and setting
Weight and connecting rod in 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
Connect, described weight be connected with each rotating shaft by connecting rod it is characterised in that each valve seat in the vertical direction described obliquely
Setting, each valve seat described is provided with sealing ring, described leafy check-valves are closed down each valve disc and compress respectively
Sealing ring on corresponding valve seat.
2. leafy check-valves according to claim 1 are it is characterised in that each valve disc described runs through valve by one respectively
The rotating shaft of frame is connected with valve buckle.
3. leafy check-valves according to claim 1 are it is characterised in that described rotating shaft includes being arranged at the short of valve disc two ends
Axle, the two ends of each valve disc described are connected with valve buckle by short axle respectively.
4. the leafy check-valves according to any one of claim 1-3 are it is characterised in that each rotating shaft described and connecting rod homonymy
One end be connected with connecting rod by spiral arm respectively, one end of each spiral arm described and rod hinge connection, each spiral arm described another
End is fixedly connected respectively at corresponding rotating shaft.
5. leafy check-valves according to claim 4 are it is characterised in that described weight includes heavy punch piece and movement weight rod, institute
The one end stating movement weight rod is connected with heavy punch piece, the other end of described movement weight rod and the one of the connecting rod side of the rotating shaft in the middle part of valve buckle
End is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028899.3A CN106369195A (en) | 2016-11-22 | 2016-11-22 | Multi-leaf check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028899.3A CN106369195A (en) | 2016-11-22 | 2016-11-22 | Multi-leaf check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106369195A true CN106369195A (en) | 2017-02-01 |
Family
ID=57891215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611028899.3A Pending CN106369195A (en) | 2016-11-22 | 2016-11-22 | Multi-leaf check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106369195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096884A (en) * | 2020-09-17 | 2020-12-18 | 扬州海通电子科技有限公司 | Mechanical one-way ventilation valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008059251A2 (en) * | 2006-11-17 | 2008-05-22 | Christopher Coxon | Pressure relief vent maintaining fire rating integrity |
| CN201896973U (en) * | 2010-11-02 | 2011-07-13 | 陈钦君 | Check valve for public flue |
| CN203532893U (en) * | 2013-11-01 | 2014-04-09 | 江苏华东正大空调设备有限公司 | Fire-resisting residual pressure valve |
| CN203585452U (en) * | 2013-11-12 | 2014-05-07 | 南方风机股份有限公司 | Low-leakage multi-blade check valve |
| CN204227655U (en) * | 2014-11-14 | 2015-03-25 | 无锡爱德旺斯科技有限公司 | Abnormality closes air-valve automatically |
| CN204312783U (en) * | 2014-11-20 | 2015-05-06 | 北京约顿气膜建筑技术股份有限公司 | Air back valve |
| CN204805638U (en) * | 2015-07-17 | 2015-11-25 | 上海显隆通风设备有限公司 | Ventilation check valve |
| CN206299843U (en) * | 2016-11-22 | 2017-07-04 | 广东申菱环境系统股份有限公司 | A kind of leafy check-valves |
-
2016
- 2016-11-22 CN CN201611028899.3A patent/CN106369195A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008059251A2 (en) * | 2006-11-17 | 2008-05-22 | Christopher Coxon | Pressure relief vent maintaining fire rating integrity |
| CN201896973U (en) * | 2010-11-02 | 2011-07-13 | 陈钦君 | Check valve for public flue |
| CN203532893U (en) * | 2013-11-01 | 2014-04-09 | 江苏华东正大空调设备有限公司 | Fire-resisting residual pressure valve |
| CN203585452U (en) * | 2013-11-12 | 2014-05-07 | 南方风机股份有限公司 | Low-leakage multi-blade check valve |
| CN204227655U (en) * | 2014-11-14 | 2015-03-25 | 无锡爱德旺斯科技有限公司 | Abnormality closes air-valve automatically |
| CN204312783U (en) * | 2014-11-20 | 2015-05-06 | 北京约顿气膜建筑技术股份有限公司 | Air back valve |
| CN204805638U (en) * | 2015-07-17 | 2015-11-25 | 上海显隆通风设备有限公司 | Ventilation check valve |
| CN206299843U (en) * | 2016-11-22 | 2017-07-04 | 广东申菱环境系统股份有限公司 | A kind of leafy check-valves |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096884A (en) * | 2020-09-17 | 2020-12-18 | 扬州海通电子科技有限公司 | Mechanical one-way ventilation valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170201 |