CN201810830U - Rubber-covered swing check valve - Google Patents
Rubber-covered swing check valve Download PDFInfo
- Publication number
- CN201810830U CN201810830U CN2010205560420U CN201020556042U CN201810830U CN 201810830 U CN201810830 U CN 201810830U CN 2010205560420 U CN2010205560420 U CN 2010205560420U CN 201020556042 U CN201020556042 U CN 201020556042U CN 201810830 U CN201810830 U CN 201810830U
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- China
- Prior art keywords
- encapsulate
- valve body
- check valve
- hole
- swing check
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a rubber-covered swing check valve, which comprises a valve body, a valve clack, a hinge system, a connection rod, a valve cover, a seal ring and a flange hole. The valve core of the valve clack is covered with rubber to form a seal surface which is close to a seal surface of the valve body; the head part of the valve clack is connected with the connection rod through a bolt; and the other end of the connection rod is assembled on the valve body through the hinge system. Compared with the prior art, in the utility model, the hinge system is improved, the valve seal port structure is simplified, and the rubber-covered swing check valve has the advantages of good seal effect and simple structure and is not easy to rust.
Description
Technical field
The utility model relates to a kind of pipeline medium FLOW CONTROL valve mechanism, especially relates to a kind of safety check that allows medium to flow to a direction.
Background technique
Safety check claims one-way valve or check valve again, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, and stops mobile in the other direction.The open-shut device of valve is opened voluntarily or is closed by media flow and strength, to prevent what medium from flowing backwards.Safety check belongs to the self-acting valve class, divides by structure, can be divided into three kinds of Lift check valve, Swing check valve and butterfly check valves.Three kinds of safety check respectively have pluses and minuses, and the rotary-open type application is comparatively extensive.But still there are deficiency and defective.Application (patent) number is that 200620041092.9 patent names are for having announced the structure of Swing check valve in the patent of " lining Swing check valve ".But this structure mainly is an inner lining fluoroplastics in valve body, and the loaded down with trivial details manufacturing process complexity of its structure is the same with the structure of existing all Swing check valves, and the linkage structure of flap motion is all unreasonable, complicated, easily rust is dead.Therefore, the structure of existing Swing check valve has the improved place of a lot of needs.Existing in addition flap structure is that iron is main body, inlays on main body then or leather or synthetic coverage rate such as rubber or copper band, makes flap.Generally inlay copper sealed mouth at the valve seal mouth and realize sealing, this structure not only technology is loaded down with trivial details, and often because of inlaid material easily comes off, valve invalidation.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of manufacturing process simple at problems of the prior art, and performance is reliable, favorable sealing property, the encapsulate Swing check valve of long service life.
The technical solution of the utility model is a kind of encapsulate Swing check valve, comprise valve body, flap, hinged system, connecting rod, valve gap, seal ring, it is characterized in that: flap forms sealing surface by the spool encapsulate, near valve body sealing surface, the flap head is connected with connecting rod by bolt, and the connecting rod the other end is assembled on the valve body by hinged system.Flap is fixedlyed connected with connecting rod, and connecting rod and hinged system are connected in the valve body.
Further technological scheme also comprises:
Described hinged system is made up of bearing, axle, sealing bolt, plastic seal ring, connecting rod, be fixed on the valve body, two projection sections are arranged in the valve body, one is provided with the through hole that leads to the valve body outside, another is provided with a blind hole (outer obstructed with valve body), the axis in two holes on same straight line and the aperture identical, be used for installation shaft, described through hole has a standard thread hole to be used to install sealing bolt by the valve body outside.Valve body sealing surface Vehicle Processing valve body is made, the flap head is connected with connecting rod by bolt, the connecting rod the other end is installed by bearing and the axle cooperation is assembled in (hinged system) on the valve body, the plane parallel of the axis of the mounting hole of axle and valve body sealing surface also should (must not surpass ± 2mm), have enough spaces to guarantee not interfere flap rotation and unlatching in the valve body in as close as possible this plane on valve body.
The end portion axis body diameter that described axle is positioned at through hole is less than pore size, and has a groove.Two apertures cooperate (Spielpassung or transition fit) to use on axle and the above-mentioned valve body, and axle one end has part discord hole to cooperate and the diameter smaller part has a groove, can utilize this groove stainless steel shaft can be taken out from blind hole.
Described center spool is provided with the screw boss of encapsulate not, and described screw boss screw thread place is provided with a hole, construction opening pin in the hole.The cotter pin of installing is used to prevent nut engaged come off (playing the retaining effect).
Described flap sealing surface encapsulate thickness is 5mm, and flap remaining part encapsulate thickness is 3mm.
Described bearing material is engineering plastics, and described axle adopts stainless steel material.
And the utlity model has following beneficial effect:
1, flap adopts encapsulate, and the sealing surface difficult drop-off damages, and seals reliable, cheap.
2, hinge stainless steel shaft and plastic bearing, hinge can not become rusty extremely, flap flexible movements, stable, reliable performance.
3, this kind encapsulate Swing check valve is by the improvement of valve inner structure and technology, two sealed mouths insert (being generally copper spare) have not only been reduced, its structure is simple more, reliable, reasonable, and on hinge, utilize axle upper groove (car goes out during the processing axle) axle can be taken out from blind hole, replace original spindle nose tapping, utilize screw thread that axle is taken out.Simplify technology, reduced cost of material and manufacture cost widely.
Description of drawings
Fig. 1 is the utility model structural representation one;
Fig. 2 is that Fig. 1 hinged system A-A is to generalized section;
Fig. 3 is a flap structural profile schematic representation;
Fig. 4 is the axle construction schematic representation;
Fig. 5 is the utility model structural representation two.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model scheme is further introduced.
As shown in the figure, this encapsulate Swing check valve comprises valve body 11, flap, hinged system, connecting rod 5, valve gap, seal ring 2, flange hole 12, form hinged system by plastic bearing 3, axle 4, connecting rod 5, sealing bolt 14, plastic seal ring 13, axle 4 is installed in two holes of two projection sections 7 in the valve body, and is fixing with sealing bolt 14; By spool 6 encapsulate 10(nontoxic rubbers) flap formed, be connected by connecting rod 5, hinge and valve body 11; When valve body 11 levels are installed, the determining positions of the hinged system of forming by two holes of two projection sections 7 in the valve body, plastic bearing 3, axle 4, connecting rod 5 center of gravity of connecting rod and flap, flap as door on the sealing surface 9 that leans against valve seat under the effect of gravity, under the fluid pressure action that a direction flows, flap is opened; Fluid flows to a direction, when fluid flows, makes flap act on valve body sealing surface 9 by the deadweight of hydrodynamic pressure and flap in the other direction, and sealed mouth is sealed, thus block flow.In order to ensure flap at every turn can both be suitable open, need enough reasonably to revolve and open the space.Linkage make flap have flexibly, stable with sealing surface of seat contact seal, revolve to open and separate.
Valve body sealing surface 9 car systems form among Fig. 1, as shown in Figure 1 the plane parallel of the axis of the pan of two projection sections in the valve body and valve body sealing surface and should as close as possible this plane in (must not above ± 2mm).
Structure is that ironware spool 6 is formed the flap parts by encapsulate 10 as shown in Figure 3, center spool projection section 18 is encapsulate not, and machining screw, there is the hole of a construction opening pin 8 at the screw thread place, and the cotter pin 8 of installation is used to prevent nut engaged come off (playing the retaining effect).
Structure shown in Figure 4 be the axle 4, the axle length should guarantee the axle 4 grooves outside the hole, be convenient to utilize groove to pull out this axle.Axle is installed plastic seal ring 13, sealing bolt 14 in the valve body projection section pan of packing into, after the tightening, axle 4 leaves certain free gap.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replaces or technological scheme that the equivalent transformation mode is obtained, all drops within the protection domain of the present utility model.
Claims (1)
1. encapsulate Swing check valve, comprise valve body (11), flap, hinged system, connecting rod (5), valve gap (1), seal ring (2), flange hole (12), it is characterized in that: described flap forms the flap sealing surface by spool (6) encapsulate, near valve body sealing surface (9), the flap head is connected with connecting rod (5) by bolt, and the connecting rod the other end is assembled on the valve body (11) by hinged system.
2. a kind of encapsulate Swing check valve according to claim 1, it is characterized in that: described hinged system is made up of bearing (3), axle (4), sealing bolt (14), plastic seal ring (13), connecting rod (5), be fixed on the valve body (11), be provided with two projection sections (7) in the described valve body, one is provided with a through hole (15), another is provided with a blind hole (16), the axis in two holes on same straight line and the aperture identical, be used for installation shaft (4), described through hole (15) has a standard thread hole to be used to install sealing bolt by the valve body outside.
3. a kind of encapsulate Swing check valve according to claim 2 is characterized in that: the end portion axis body diameter that described axle (4) is positioned at through hole (15) is less than pore size, and has a groove (17).
4. a kind of encapsulate Swing check valve according to claim 1 and 2 is characterized in that: described center spool is provided with a screw boss of encapsulate (18) not, and described screw boss screw thread place is provided with a hole, construction opening pin (8) in the hole.
5. a kind of encapsulate Swing check valve according to claim 4 is characterized in that: described flap sealing surface encapsulate (10) thickness is 5mm, and flap remaining part encapsulate thickness is 3mm.
6. according to the described a kind of encapsulate Swing check valve of arbitrary claim among the claim 1-3, it is characterized in that: described bearing material is engineering plastics, and described axle is a stainless steel material.
7. a kind of encapsulate Swing check valve according to claim 5 is characterized in that: described bearing material is engineering plastics, and described axle is a stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205560420U CN201810830U (en) | 2010-10-11 | 2010-10-11 | Rubber-covered swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205560420U CN201810830U (en) | 2010-10-11 | 2010-10-11 | Rubber-covered swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810830U true CN201810830U (en) | 2011-04-27 |
Family
ID=43893771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205560420U Expired - Fee Related CN201810830U (en) | 2010-10-11 | 2010-10-11 | Rubber-covered swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626459A (en) * | 2015-01-09 | 2015-05-20 | 芜湖市金贸流体科技股份有限公司 | Rubber coating method for valve element of soft sealing gate valve |
| CN105351573A (en) * | 2015-11-13 | 2016-02-24 | 山东莱德机械有限公司 | Self-sealing swing flexible-sealing check valve |
| CN107664234A (en) * | 2016-07-29 | 2018-02-06 | 中核兰州铀浓缩有限公司 | A kind of self-rotary check valve |
-
2010
- 2010-10-11 CN CN2010205560420U patent/CN201810830U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626459A (en) * | 2015-01-09 | 2015-05-20 | 芜湖市金贸流体科技股份有限公司 | Rubber coating method for valve element of soft sealing gate valve |
| CN105351573A (en) * | 2015-11-13 | 2016-02-24 | 山东莱德机械有限公司 | Self-sealing swing flexible-sealing check valve |
| CN107664234A (en) * | 2016-07-29 | 2018-02-06 | 中核兰州铀浓缩有限公司 | A kind of self-rotary check valve |
| CN107664234B (en) * | 2016-07-29 | 2019-05-17 | 中核兰州铀浓缩有限公司 | A kind of self-rotary check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20121011 |