CN101251202A - One-way horizontal check valve - Google Patents
One-way horizontal check valve Download PDFInfo
- Publication number
- CN101251202A CN101251202A CNA2008100269582A CN200810026958A CN101251202A CN 101251202 A CN101251202 A CN 101251202A CN A2008100269582 A CNA2008100269582 A CN A2008100269582A CN 200810026958 A CN200810026958 A CN 200810026958A CN 101251202 A CN101251202 A CN 101251202A
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- China
- Prior art keywords
- flap
- check valve
- valve body
- bellmouth
- way horizontal
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Abstract
The invention provides a one-way horizontal check valve comprising a pipe socket (1), a valve body (3) and a valve flap, wherein the valve flap is positioned at the joint where the pipe socket (1) and the valve body (3) are butt jointed, the outside surface of the valve flap is an anti-corrosive layer (4), and the inside is provided with a metal heavy (5). The one-way horizontal check valve allows the metal heavy (5) to be arranged in the anti-corrosive layer (4), which effectively avoids the metal heavy to be eroded by acid liquid or alkaline liquid, and can also effectively avoids oxygenating, and ensures the service life of the valve flap. The one-way horizontal check valve uses the screw-cap joint and the screw-threaded joint to resolve the problems in the prior art of inconvenient assembly, heavy weight and so on, which are caused by the connection of a flange and a bolt.
Description
Technical field
The invention belongs to the safety check production technical field, particularly relate to a kind of one-way horizontal check valve.
Technical background
Existing one-way horizontal plastics heavy caliber safety check comprises bellmouth, valve body and flap, flap is in the joint of bellmouth and valve body, usually the outside two ends of flap are slug, the centre is a rubber ring, during use under the impact of flow liquid, flap is opened, the safety check circulation, not enough or when not having, flap is sagging naturally under the action of gravity of slug, seals safety check when fluid flow, because the slug long term exposure is in liquid, corroded very easily by acid, alkali etc., and easily oxidized, shortened the working life of product.
In addition, what existing safety check adopted mostly is metal bolts flange-type Placement, and promptly bellmouth and valve body are equipped with adpting flange, adpting flange is connected with bolt last back, this kind Placement is installed inconvenient, and has increased the deadweight of product, brings a lot of inconvenience for actual the use.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure and effectively avoid the oxidation that is corroded of the slug of flap, the one-way horizontal check valve that working life is long.
Safety check of the present invention also has characteristics such as simple installation, material saving, beautiful shape.
In order to realize goal of the invention, the technological scheme of employing is as follows:
A kind of one-way horizontal check valve comprises bellmouth, valve body and flap, and flap is in the joint of bellmouth and valve body, and the outer surface of described flap is a corrosion-resistant coating, and inside then is provided with the metal weight.
The present invention is arranged on corrosion-resistant coating inside with the metal weight, has effectively avoided the metal weight to be corroded by acid, akaline liquid, also can effectively avoid oxidation, has guaranteed the working life of flap.
In the technique scheme, described flap is made up of a rubber ring that is enclosed with slug, and promptly the metal weight adopts block structure, and corrosion-resistant coating adopts rubber, and it is circular that flap integral body is done, and matches with the bore of bellmouth, valve body.
Further, the rounded shape of described flap comprises connection sealed department and the less lobe leaf of diameter that diameter is bigger, and connecting sealed department and lobe leaf is concentric circle, and connects by one section rubber circular arc, and described slug is arranged at the inside of lobe leaf.Said structure, make flap be divided into two-part, the diameter that connects sealed department is bigger, be enclosed within the port joint of bellmouth and valve body during use, and the diameter of lobe leaf is less, be not connected during use, play the effect of under action of gravity, sealing bellmouth and under the impact of liquid, opening with the joint of bellmouth and valve body.
Described connection sealed department also is provided with arc-shaped convex, and described bellmouth is provided with the circular groove that coincide with this arc-shaped convex, and the circular groove and the arc-shaped convex of socket match, and plays the effect of directed location, prevents the slip of rubber ring.
The present invention also is provided with nut, and described nut connects bellmouth and valve body, and between nut and the valve body by being threaded.By nut and be threaded, overcome prior art by problem such as installation inconvenience that adpting flange and bolt brought and weight is bigger, and two-part that adopt diameter not wait just because of flap, the connection sealed department that diameter is bigger has guaranteed the sealing that bellmouth is connected with valve body, the less lobe leaf of diameter is then mainly realized the function of original flap, and can also anticorrosive oxidation.
Figure of description
Fig. 1 is a structural representation of the present invention;
Fig. 2 is flap of the present invention and bellmouth assembling schematic representation.
Embodiment
The present invention is described further below in conjunction with accompanying drawing.
Structural representation of the present invention comprises bellmouth 1, nut 2, valve body 3 and flap as shown in Figure 1, and flap comprises corrosion protection outer 4 and slug 5.
Flap structure of the present invention is shown in accompanying drawing 2 left halfs, the whole rounded shape of flap, comprise connection sealed department 41 and the less lobe leaf 42 of diameter that diameter is bigger, connecting sealed department 41 and lobe leaf 42 is concentric structure, and connect by one section rubber circular arc 43, slug 5 just is arranged on the inside of lobe leaf 42.
Socket is provided with groove 11, the connection sealed department 41 of flap then is provided with rubber ring projection 45, groove 11 matches with rubber ring projection 45, play the effect of directed location, work in coordination and prevent the slip of flap, in addition, flap of the present invention plays the liquid of the ON/OFF mouth of a river and sealing position, the ON/OFF mouth of a river incessantly, can also seal up leaking of bellmouth 1, valve body 3 and nut 2 joints.
With adopting bonding mode to be connected tubing, medium flows to bellmouth through tubing respectively for bellmouth 1 of the present invention and valve body 3 two ends, and because of under mobile pressure medium effect, flap is opened, and medium is by flowing away with the bonding tubing of valve body; And when the active force of the medium that no longer includes media flow with the bonding tubing direction of bellmouth 1 or flowed is not enough to flap opened, flap is closed under the active force of himself automatically, with the MEDIA FLOW at bellmouth and main body two ends to cut-out, at this moment, the metal object 5 that is wrapped in by lobe leaf 42 at it from gravity and still have under a little active force of staying the medium in the valve body 3, make it closely push down bellmouth 1 place, the MEDIA FLOW mistake that prevents to carry on as before and have a little to stay bellmouth 1 place also can prevent to flow backwards because of the medium that remains in the valve body 3.Have only the pressure medium active force when bellmouth 1 place to reach when being enough to open flap, could form flowing next time.
The present invention adopts the mode be threaded, after being threaded of nut 2 and valve body 3, just each accessory is installed, and makes not only simple installation of product, and aesthetic in appearance.
The present invention also can open flap because of the size of the flow of medium, forms the cylindrical shape of certain diameter in valve body, and space availability ratio can become with medium.
Claims (5)
1, a kind of one-way horizontal check valve comprises bellmouth (1), valve body (3) and flap, and flap is in the joint of bellmouth (1) and valve body (3), and the outer surface that it is characterized in that described flap is corrosion-resistant coating (4), and inside then is provided with metal weight (5).
2, one-way horizontal check valve according to claim 1 is characterized in that described flap is made up of a rubber ring that is enclosed with slug.
3, one-way horizontal check valve according to claim 2, it is characterized in that the rounded shape of described flap, comprise connection sealed department and the less lobe leaf of diameter that diameter is bigger, connecting sealed department and lobe leaf is concentric circle, and connect by one section rubber circular arc, described slug is arranged at the inside of lobe leaf.
4, one-way horizontal check valve according to claim 3 is characterized in that described connection sealed department also is provided with arc-shaped convex, and described bellmouth (1) is provided with the circular groove that coincide with this arc-shaped convex.
5, one-way horizontal check valve according to claim 1 is characterized in that also being provided with nut (2), and described nut (2) connects bellmouth (1) and valve body (3), and between nut (2) and the valve body (3) by being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100269582A CN101251202B (en) | 2008-03-24 | 2008-03-24 | One-way horizontal check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100269582A CN101251202B (en) | 2008-03-24 | 2008-03-24 | One-way horizontal check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101251202A true CN101251202A (en) | 2008-08-27 |
| CN101251202B CN101251202B (en) | 2011-01-12 |
Family
ID=39954733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100269582A Active CN101251202B (en) | 2008-03-24 | 2008-03-24 | One-way horizontal check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101251202B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115169A (en) * | 2012-12-11 | 2013-05-22 | 天津市国威给排水设备制造有限公司 | Check valve structure of anti-backflow device |
| CN107631059A (en) * | 2017-10-23 | 2018-01-26 | 盐城市威隆管夹制造有限公司 | The horizontal single-headed pipeline valve that a kind of anti-non-return water pours in down a chimney |
-
2008
- 2008-03-24 CN CN2008100269582A patent/CN101251202B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115169A (en) * | 2012-12-11 | 2013-05-22 | 天津市国威给排水设备制造有限公司 | Check valve structure of anti-backflow device |
| CN103115169B (en) * | 2012-12-11 | 2015-04-08 | 天津市国威给排水设备制造有限公司 | Check valve structure of anti-backflow device |
| CN107631059A (en) * | 2017-10-23 | 2018-01-26 | 盐城市威隆管夹制造有限公司 | The horizontal single-headed pipeline valve that a kind of anti-non-return water pours in down a chimney |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101251202B (en) | 2011-01-12 |
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Owner name: HU NAN QIU ZEYOU PATENT STRATEGIC PLANNING CO., LT Free format text: FORMER OWNER: QIU ZEYOU Effective date: 20101102 |
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Free format text: CORRECT: ADDRESS; FROM: 410005 28/F, SHUNTIANCHENG, NO.185, FURONG MIDDLE ROAD, CHANGSHA CITY, HU NAN PROVINCE TO: 410205 JUXING INDUSTRY BASE, NO.8, LUJING ROAD, CHANGSHA HIGH-TECH. DEVELOPMENT ZONE, YUELU DISTRICT, CHANGSHA CITY, HU NAN PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20101109 Address after: 551417 Guizhou Province, Qingzhen City Hongfeng Hu Zhen Liang Jia Zhai Cun (Pharmaceutical Industrial Park Qingzhen City) Applicant after: Guangdong L&S Science & Technology Group Address before: Shunde Longzhou road Longjiang 528300 Guangdong Liansu industrial village in Foshan Province Applicant before: Liansu Science & Technology Industrial Co., Ltd., Guangdong Prov. |
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| C14 | Grant of patent or utility model | ||
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