CN209340566U - A kind of linear sealing butterfly swing check valve door - Google Patents
A kind of linear sealing butterfly swing check valve door Download PDFInfo
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- CN209340566U CN209340566U CN201822248861.8U CN201822248861U CN209340566U CN 209340566 U CN209340566 U CN 209340566U CN 201822248861 U CN201822248861 U CN 201822248861U CN 209340566 U CN209340566 U CN 209340566U
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- valve
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- sleeve block
- compensation
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Abstract
The utility model provides a kind of linear sealing butterfly swing check valve door, it include: valve body, valve seat, flap, valve rod, sleeve block, rubber positioning column and torsional spring, medium inlet is provided on valve body, valve seat setting is in valve inner and is located at medium inlet, valve rod radially installed is in valve body, flap is arranged on valve rod, flap is located at valve seat side, torsional spring is mounted on valve rod, torsional spring can remain closed flap and valve seat, rubber positioning column is arranged in valve body and is located at valve rod side, sleeve block is arranged in valve body by straight pin, sleeve block is arranged in valve seat side, the outer surface of flap is coated with rubber layer, the contact surface of rubber layer and medium inlet is provided with rubber bumps.In the embodiment of the present application, flap can be prevented to be corroded, prolonged the service life；Annular linear sealing is realized, the sealing effect of valve is improved；And medium can be filtered；It also can avoid improving the reliability of work because of the phenomenon that generating leakage after long-time use.
Description
Technical field
This application involves check-valves technical field more particularly to a kind of linear sealing butterfly swing check valve doors.
Background technique
Butterfly swing check valve refers to be flowed and automatic open and close flap by medium itself, for preventing the valve of medium refluence,
Also known as non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and main function is to prevent medium
It flows backwards, prevent pump and drive motor reversion and vessel media from releasing.Check-valves can also be used in may to pressure therein
The auxiliary system for being raised above system pressure is provided on the pipeline of supply.The effect of butterfly swing check valve is only to allow medium to a side
To flowing, and direction is prevented to flow.Usual this valve is automatic work, the Fluid pressure effect flowed in one direction
Under, flap is opened；When fluid opposite direction flowing, valve seat is acted on by the flap that is overlapped certainly of Fluid pressure and flap, to cut off
Flowing.Existing butterfly swing check valve door, leakproofness is poor, and causes valve to generate leakage using the abrasion of rear sealing strip for a long time
Phenomenon, and can not be filtered, the erosion for causing valve that blocking can occur and carry out to component, flap is easily corroded, and influences
Service life.
Summary of the invention
The application provides a kind of linear sealing butterfly swing check valve door, and to solve, leakproofness is poor in the prior art, can not carry out
The problem of filter, flap are easily corroded, influence service life.
The application provides a kind of linear sealing butterfly swing check valve door, comprising: valve body, valve seat, flap, valve rod, sleeve block, rubber
Positioning column and torsional spring, are provided with medium inlet on the valve body, and the valve seat setting is given an account of in the valve inner and being located at
Matter inlet, the valve rod radially installed is in the valve body, and the flap is arranged on the valve rod, and the flap is located at institute
Valve seat side is stated, the torsional spring is mounted on the valve rod, and the torsional spring can remain closed the flap and the valve seat, institute
It states rubber positioning column and is arranged in valve body and is located at the valve rod side, the sleeve block is arranged by straight pin in the valve body
Interior, the sleeve block is arranged in the valve seat side, and the outer surface of the flap is coated with rubber layer, the rubber layer with it is described
The contact surface of medium inlet is provided with rubber bumps.
Further, compensation mechanism is provided on the sleeve block, the compensation mechanism includes mounting flange, adjusts spiral shell
Bolt, sealing strip and compensation sealing item, the sealing strip are arranged on the flap, and the mounting flange is fixed at the axis
The inner surface of block set, the mounting flange circumferentially offer adjusting threaded hole, and the adjusting bolt is located at the mounting flange
Upper surface and be arranged on the adjusting threaded hole, the lower surface of the mounting flange, the benefit is arranged in the compensation sealing item
It repays sealing strip to be in contact with the sealing strip, is provided in the adjusting threaded hole and is adjusted axially spring, it is described to be adjusted axially bullet
Spring one end is connected with the compensation sealing item, and the other end is connected with the adjusting bolt.
Further, it is provided with mounting groove on the compensation sealing item, radiai adjustment spring is provided in the mounting groove,
The radiai adjustment spring one end is connected with the sleeve block, and the other end is connected with the mounting groove.
Further, coarse filtration net and thin filter screen, the coarse filtration net and the thin filtering are provided on the valve seat
Net is successively set on the valve seat along medium flow direction.
Further, there are two the flap settings, two flaps are symmetricly set on the two sides of the valve rod.
In the embodiment of the present application, flap is avoided by the rubber layer of setting to contact with the direct of medium, prevent flap
It is corroded, prolongs the service life；The rubber bumps of setting, so that realizing toroid between flap and valve seat in closed state
Property sealing, improve the sealing effect of valve；
By the coarse filtration net and thin filter screen being arranged in medium inlet, medium can be filtered, be avoided because of medium
It is middle there are impurity to lead to valve blockage and to the erosion of component；
By the mounting flange of setting, adjusting bolt, sealing strip and compensation sealing item, it is adjusted axially spring and radiai adjustment
Spring can guarantee the leakproofness of valve, and avoid causes valve tightness to decline because of long-time using the abrasion of rear sealing strip, produce
The phenomenon that raw leakage, improve the reliability of work.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the overall structure diagram of the application；
Fig. 2 is partial enlarged view at the A of the application；
In figure: 1- flap；2- valve body；3- sleeve block；4- valve seat；The medium inlet 5-；6- coarse filtration net；The thin filter screen of 7-；
8- rubber layer；9- rubber positioning column；10- valve rod；11- torsional spring；12- mounting flange；13- adjusts bolt；14- adjusts threaded hole；
15- is adjusted axially spring；16- radiai adjustment spring；17- mounting groove；18- compensation sealing item；19- rubber bumps；20- sealing
Item.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
Below in conjunction with attached drawing, the technical scheme provided by various embodiments of the present application will be described in detail.
As depicted in figs. 1 and 2, the present embodiment provides a kind of linear sealing butterfly swing check valve doors, comprising: valve body 2, valve seat 4, valve
Valve 1, valve rod 10, sleeve block 3, rubber positioning column 9 and torsional spring 11, medium inlet 5 is provided on valve body 2, and valve seat 4 is arranged in valve body
Inside 2 and it is located at medium inlet 5,10 radially installed of valve rod is in valve body 2, and flap 1 is arranged on valve rod 10, and flap 1 is located at
4 side of valve seat, torsional spring 11 are mounted on valve rod 10, and torsional spring 11 can remain closed flap 1 and valve seat 4, and rubber positioning column 9 is arranged
In valve body 2 and it is located at 10 side of valve rod, sleeve block 3 is arranged in valve body 2 by straight pin, and sleeve block 3 is arranged in valve seat 4 one
Side, the outer surface of flap 1 are coated with rubber layer 8, and rubber layer 8 and the contact surface of medium inlet 5 are provided with rubber bumps 19.Valve seat
Coarse filtration net 6 and thin filter screen 7 are provided on 4, coarse filtration net 6 and thin filter screen 7 are flowed to along medium is successively set on valve seat 4
On.There are two the settings of flap 1, and two flaps 1 are symmetricly set on the two sides of valve rod 10.
Compensation mechanism is provided on sleeve block 3, compensation mechanism includes mounting flange 12, adjusts bolt 13,20 and of sealing strip
Compensation sealing item 18, sealing strip 20 are arranged on flap 1, and mounting flange 12 is fixed at the inner surface of sleeve block 3, install convex
Circumferential offer of edge 12 adjusts threaded hole 14, adjusts the upper surface that bolt 13 is located at mounting flange 12 and setting in adjusting threaded hole
On 14, the lower surface of mounting flange 12 is arranged in compensation sealing item 18, and compensation sealing item 18 is in contact with sealing strip 20, adjusts screw thread
It is provided in hole 14 and is adjusted axially spring 15, be adjusted axially 15 one end of spring and be connected with compensation sealing item 18, the other end and tune
Section bolt 13 is connected.It is provided with mounting groove 17 on compensation sealing item 18, radiai adjustment spring 16, diameter are provided in mounting groove 17
It is connected to 16 one end of adjustment spring with sleeve block 3, the other end is connected with mounting groove 17.
When work, medium enters from medium inlet 5, pushes flap 1 to rotate by the pressure of medium, when flap 1 turns to
It when rubber positioning column 9, stops operating, in opened condition, torsional spring 11 is compressed check-valves at this time；The pressure of medium gradually subtracts therewith
Small, under the action of torsional spring 11, flap 1 is rotated, and the folding angle between valve plate and valve seat 4 is gradually reduced, until medium is complete
Stop, with 4 tight closure of valve seat under the action of torsional spring 11, medium can not flow back flap 1.
After long-time use, sealing strip 20 is easy to happen abrasion condition, and radiai adjustment spring 16 will push compensation sealing item
18, guarantee the close contact between sealing strip 20 and compensation sealing item 18；Bolt 13 is adjusted by rotation, so that adjusting bolt 13
Axial adjustment spring 15 is pushed so that close contact between compensation sealing item 18 and sealing strip 20.
In the embodiment of the present application, it by the rubber layer of setting 8, avoids flap 1 and is contacted with the direct of medium, prevent valve
Valve 1 is corroded, and prolongs the service life；The rubber bumps 19 of setting, so that being realized between flap 1 and valve seat 4 in closed state
Annular linear sealing, improves the sealing effect of valve；
By the coarse filtration net 6 and thin filter screen 7 being arranged in medium inlet 5, medium can be filtered, be avoided because being situated between
There are impurity lead to valve blockage in matter and to the erosion of component；
By the mounting flange 12 of setting, adjusting bolt 13, sealing strip 20 and compensation sealing item 18, it is adjusted axially spring 15
With radiai adjustment spring 16, it can guarantee the leakproofness of valve, avoiding leads to valve using the abrasion of rear sealing strip 20 because of long-time
Door sealing decline, generates the phenomenon that revealing, improves the reliability of work.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method of element, commodity or equipment.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art,
Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of the claims of this application.
Claims (5)
1. a kind of linear sealing butterfly swing check valve door characterized by comprising valve body, valve seat, flap, valve rod, sleeve block, rubber
Positioning column and torsional spring, are provided with medium inlet on the valve body, and the valve seat setting is given an account of in the valve inner and being located at
Matter inlet, the valve rod radially installed is in the valve body, and the flap is arranged on the valve rod, and the flap is located at institute
Valve seat side is stated, the torsional spring is mounted on the valve rod, and the torsional spring can remain closed the flap and the valve seat, institute
It states rubber positioning column and is arranged in valve body and is located at the valve rod side, the sleeve block is arranged by straight pin in the valve body
Interior, the sleeve block is arranged in the valve seat side, and the outer surface of the flap is coated with rubber layer, the rubber layer with it is described
The contact surface of medium inlet is provided with rubber bumps.
2. linear sealing butterfly swing check valve door according to claim 1, which is characterized in that be provided with compensation on the sleeve block
Mechanism, the compensation mechanism include mounting flange, adjust bolt, sealing strip and compensation sealing item, and the sealing strip is arranged in institute
It states on flap, the mounting flange is fixed at the inner surface of the sleeve block, and the mounting flange circumferentially offers adjusting
Threaded hole, the bolt that adjusts are located at the upper surface of the mounting flange and are arranged on the adjusting threaded hole, the compensation
The lower surface of the mounting flange is arranged in sealing strip, and the compensation sealing item is in contact with the sealing strip, the adjusting screw thread
It is provided in hole and is adjusted axially spring, the spring one end that is adjusted axially is connected with the compensation sealing item, the other end and institute
Adjusting bolt is stated to be connected.
3. linear sealing butterfly swing check valve door according to claim 2, which is characterized in that be provided on the compensation sealing item
Mounting groove is provided with radiai adjustment spring in the mounting groove, and the radiai adjustment spring one end is connected with the sleeve block,
The other end is connected with the mounting groove.
4. linear sealing butterfly swing check valve door according to claim 1 or 2, which is characterized in that be provided on the valve seat thick
Filter screen and thin filter screen, the coarse filtration net and the thin filter screen are successively set on the valve seat along medium flow direction.
5. linear sealing butterfly swing check valve door according to claim 1, which is characterized in that there are two the flap settings, and two
A flap is symmetricly set on the two sides of the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248861.8U CN209340566U (en) | 2018-12-29 | 2018-12-29 | A kind of linear sealing butterfly swing check valve door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248861.8U CN209340566U (en) | 2018-12-29 | 2018-12-29 | A kind of linear sealing butterfly swing check valve door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209340566U true CN209340566U (en) | 2019-09-03 |
Family
ID=67760050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822248861.8U Active CN209340566U (en) | 2018-12-29 | 2018-12-29 | A kind of linear sealing butterfly swing check valve door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209340566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746976A (en) * | 2019-10-29 | 2021-05-04 | 潘连山 | Backflow-preventing bottom valve of plastic mixed-flow pump |
| CN112923069A (en) * | 2021-01-15 | 2021-06-08 | 皮友孝 | Valve with internal pre-tightening function |
-
2018
- 2018-12-29 CN CN201822248861.8U patent/CN209340566U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746976A (en) * | 2019-10-29 | 2021-05-04 | 潘连山 | Backflow-preventing bottom valve of plastic mixed-flow pump |
| CN112923069A (en) * | 2021-01-15 | 2021-06-08 | 皮友孝 | Valve with internal pre-tightening function |
| CN112923069B (en) * | 2021-01-15 | 2023-09-15 | 池州市日升阀门管件制造有限公司 | Valve with internal pre-tightening function |
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