CN207093860U - A kind of integral type flap swing-type flange check valve - Google Patents
A kind of integral type flap swing-type flange check valve Download PDFInfo
- Publication number
- CN207093860U CN207093860U CN201720579359.8U CN201720579359U CN207093860U CN 207093860 U CN207093860 U CN 207093860U CN 201720579359 U CN201720579359 U CN 201720579359U CN 207093860 U CN207093860 U CN 207093860U
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- flap
- valve
- bonnet
- close
- valve body
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Abstract
It the utility model is related to a kind of integral type flap swing-type flange check valve.A kind of integral type flap swing-type flange check valve, including valve body, bonnet, flap and rocking bar, valve inner is provided with valve pocket, valve body both ends are provided with the fluid inlet and fluid issuing communicated with valve pocket, body top is provided with open top, bonnet is covered in open top, rocking bar one end is rotatably connected on the inwall of valve pocket, the other end is connected with flap, it is characterized in that, bonnet is provided with connecting portion, connecting portion is provided with external screw thread, the inwall of body top opening is provided with internal thread, valve body is connected with bonnet by screw thread rotation, groove is equipped with the plane being close on bonnet with body top end face, O-ring seal is embedded with groove, fluid inlet is provided with valve seat insert close to one end of valve pocket, it is close to during flap closed fluid import with valve seat insert, flap and rocking bar are formed in one.The utility model is simple in construction, easy to use, and sealing effectiveness is preferable, and production cost is low.
Description
Technical field
Valve technology field is the utility model is related to, more particularly, to a kind of integral type flap swing-type flange non-return
Valve.
Background technology
Swing check valve is widely used on the pipeline of the industries such as metallurgy, chemical industry, power industry, urban water supply and sewerage, is played
The effect of medium counter flow is prevented, is one of most widely used valve in various fluid conveying engineerings.Existing swing type non-return
Valve flap requirement on machining accuracy is high, and parts are more, complicated, can be in any more production cost.
Utility model content
The utility model is to overcome above-mentioned at least one defect of the prior art, there is provided a kind of integral type flap swing type
Flange check valve.The utility model is simple in construction, easy to use, and sealing effectiveness is preferable, and production cost is low.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of integral type flap swing type method
Blue check-valves, including valve body, bonnet, flap and rocking bar, the valve inner are provided with valve pocket, and valve body both ends are provided with and the valve pocket
The fluid inlet and fluid issuing communicated, the body top are provided with open top, and the bonnet is covered in the open top
On, described rocking bar one end is rotatably connected on the inwall of valve pocket, and the other end is connected with the flap, so, flap can with
Tie point of the rocking bar together around rocking bar and valve pocket inwall to rotate, fluid enters fashionable from fluid inlet, and flap is by fluid impact
And open fluid inlet as rocking bar rotates together, fluid enters valve pocket, is then flowed out from fluid issuing；When fluid returns
During stream, the fluid of backflow can make flap rotate back into origin with rocking bar, that is, flap closes fluid inlet, prevent fluid from returning
Stream.Wherein, the bonnet is provided with connecting portion, and the connecting portion is provided with external screw thread, on the inwall of the body top opening
Provided with internal thread, the valve body is connected with bonnet by screw thread rotation, is close on the bonnet with the body top end face
Groove is equipped with plane, O-ring seal is embedded with the groove, bonnet is so allowed for and valve body junction obtains well
Sealing, prevent fluid in valve pocket from being leaked from the junction of bonnet and valve body.The fluid inlet is close to one end of valve pocket
Provided with valve seat insert, the flap is close to when closing the fluid inlet with the valve seat insert, the flap and rocking bar
It is formed in one, flap and rocking bar, which are integrally formed, can simplify parts number, simplify processing technology, reduce production cost.
Further, the position ring that the flap is close to the valve seat insert is provided with flexible barrier material.Preferably,
The flexible barrier material is rubber or silica gel.In the position that flap is close to the valve seat insert, flexible barrier material is set
Better seal performance is obtained when flap can be allowd to be close to valve seat insert, and then is more effectively prevented in valve pocket
Fluid reflux.
Compared with prior art, its advantage is the utility model：
Using threaded connection between bonnet and valve body of the present utility model, and it has been embedded in bonnet and valve body junction O-shaped
Sealing ring, improve the sealing property of check-valves；Flap and rocking bar can simplify parts number using being integrally formed, and simplify
Processing technology, reduce production cost；Flexible barrier material is set in the position that flap is close to the valve seat insert, can be made
Better seal performance can be obtained by obtaining when flap is close to valve seat insert, and then more effectively prevent the fluid in valve pocket from returning
Stream.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is the structural representation of the utility model bonnet.
Fig. 3 is the structural representation of the utility model flap.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by accompanying drawing.Being given for example only property of position relationship described in accompanying drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in Fig. 1 to Fig. 3, a kind of integral type flap swing-type flange check valve, including valve body, bonnet, flap and shake
Bar, valve inner are provided with valve pocket, and valve body both ends are provided with the fluid inlet and fluid issuing communicated with valve pocket, and body top is provided with top
Portion's opening, bonnet are covered in open top, and rocking bar one end is rotatably connected on the inwall of valve pocket, and the other end is connected with flap,
So, flap can is rotated with tie point of the rocking bar together around rocking bar and valve pocket inwall, and fluid enters from fluid inlet
When, flap opens fluid inlet by fluid impact and as rocking bar rotates together, and fluid enters valve pocket, then from fluid issuing
Outflow；When fluid flows back, the fluid of backflow can make flap rotate back into origin with rocking bar, that is, flap enters fluid
Mouth is closed, and prevents fluid reflux.Wherein, bonnet is provided with connecting portion, and connecting portion is provided with external screw thread, body top opening it is interior
Wall is provided with internal thread, and valve body is connected with bonnet by screw thread rotation, ring in the plane being close on bonnet with body top end face
Provided with groove, O-ring seal is embedded with groove, bonnet is so allowed for and valve body junction obtains good sealing, prevent
Only the fluid in valve pocket leaks from the junction of bonnet and valve body.Fluid inlet is provided with valve seat insert close to one end of valve pocket,
It is close to during flap closed fluid import with valve seat insert, flap and rocking bar are formed in one, and flap and rocking bar are integrally formed can
To simplify parts number, simplify processing technology, reduce production cost.
As shown in figure 3, the position ring that flap is close to valve seat insert is provided with flexible barrier material.Preferably, it is soft close
Closure material is rubber or silica gel.The position that flap is close to valve seat insert set flexible barrier material can cause flap with
Valve seat insert can obtain better seal performance when being close to, and then more effectively prevent the fluid reflux in valve pocket.
Obviously, above-described embodiment of the present utility model is used for the purpose of clearly demonstrating the utility model example,
And it is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, stated upper
It can also be made other changes in different forms on the basis of bright.There is no need and unable to give all embodiments
With exhaustion.All made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., all should be included
Within the protection domain of the utility model claims.
Claims (3)
1. a kind of integral type flap swing-type flange check valve, including valve body（1）, bonnet（2）, flap（3）And rocking bar（4）, institute
State valve body（1）Inside is provided with valve pocket（5）, valve body（1）Both ends are provided with and the valve pocket（5）The fluid inlet communicated（6）And fluid
Outlet（7）, the valve body（1）Top is provided with open top, the bonnet（2）Cover in the open top, the rocking bar
（4）One end is rotatably connected on valve pocket（5）Inwall on, the other end and the flap（3）Connection, it is characterised in that the bonnet
（2）It is provided with connecting portion（21）, the connecting portion（21）It is provided with external screw thread, the valve body（1）Set on open-topped inwall
There are internal thread, the valve body（1）And bonnet（2）Connected by screw thread rotation, the bonnet（2）The upper and valve body（1）Top
Groove is equipped with the plane that end face is close to（8）, the groove（8）Inside it is embedded with O-ring seal（9）, the fluid inlet（6）
Close to valve pocket（5）One end be provided with valve seat insert（10）, the flap（3）Close the fluid inlet（6）When with the valve
Seat sealing ring（10）It is close to, the flap（3）And rocking bar（4）It is formed in one.
A kind of 2. integral type flap swing-type flange check valve according to claim 1, it is characterised in that the flap
（3）With the valve seat insert（10）The position ring being close to is provided with flexible barrier material（11）.
3. a kind of integral type flap swing-type flange check valve according to claim 2, it is characterised in that described soft close
Closure material（11）For rubber or silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579359.8U CN207093860U (en) | 2017-05-23 | 2017-05-23 | A kind of integral type flap swing-type flange check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579359.8U CN207093860U (en) | 2017-05-23 | 2017-05-23 | A kind of integral type flap swing-type flange check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093860U true CN207093860U (en) | 2018-03-13 |
Family
ID=61551006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720579359.8U Active CN207093860U (en) | 2017-05-23 | 2017-05-23 | A kind of integral type flap swing-type flange check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093860U (en) |
-
2017
- 2017-05-23 CN CN201720579359.8U patent/CN207093860U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210616 Address after: 527199 niuxu River, Ducheng Town, Yunfu City, Guangdong Province Patentee after: Guangdong Liansu Valve Co.,Ltd. Address before: Shunde Longzhou road Longjiang 528318 Guangdong Liansu industrial village in Foshan Province Patentee before: Guangdong Liansu Technology Industrial Co.,Ltd. |