CN102797878A - Rubber-flap check valve - Google Patents
Rubber-flap check valve Download PDFInfo
- Publication number
- CN102797878A CN102797878A CN2012103203437A CN201210320343A CN102797878A CN 102797878 A CN102797878 A CN 102797878A CN 2012103203437 A CN2012103203437 A CN 2012103203437A CN 201210320343 A CN201210320343 A CN 201210320343A CN 102797878 A CN102797878 A CN 102797878A
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- CN
- China
- Prior art keywords
- valve seat
- rubber
- valve
- plane
- seat inclined
- 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.)
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- Check Valves (AREA)
Abstract
The invention relates to a rubber-flap check valve which comprises a valve body (1), a valve seat slant face (2) fixedly connected with the valve body, a medium channel (3) arranged in the center of the valve seat slant face and a rubber valve flap (4) movably connected on the valve body, wherein the sealing face of the rubber valve flap (4) is provided with a plurality of tapered convex bodies (5), the tapered convex bodies (5) are in contact with the valve seat slant face (2), and the contact ends are symmetrically distributed on the valve seat slant face (2) near the end faces of both ends of the medium channel (3). After the structure is adopted, the tapered convex bodies form a linear seal on the valve seat slant face under the pressure action of a flowing medium, the sealing effect can not be affected by the surface roughness of the valve seat, the sealing effect is ensured, a plurality of tapered convex bodies form multiple seals, and the sealing effect can still be ensured after one of the tapered convex bodies is worn after long-time use. The arranged convex parts are overlapped on the valve seat slant face, and the sealing effect is further ensured under the action of the flowing medium.
Description
Technical field
The present invention relates to a kind of rubber lobe safety check.
Background technique
The flap of rubber lobe safety check centers on the outer bearing pin rotation of valve seat, and rubber lobe safety check relies on flowing of medium itself and automatic open and close flap.The sealing configuration of existing rubber lobe safety check is to utilize the squeezing action on flap rubber plane and valve base sealing plane to reach sealing effect; This sealing configuration is face seal; Sealing effect can receive the influence of valve base surface roughness; And valve seat be through after the body processing again plastic-blasting form, if valve seat machining accuracy missionary society influences the valve base surface roughness, thereby be difficult to guarantee sealing effect.
Summary of the invention
The objective of the invention is to solve sealing configuration and influenced by the roughness of valve seat, cause being difficult to guarantee the problem of sealing effect, thereby a kind of rubber lobe safety check is provided.
The technological scheme that the present invention adopts is: a kind of rubber lobe safety check; The valve seat inclined-plane that comprises valve body, is connected with valve body, be arranged on valve seat inclined-plane central authorities medium channel, be movably connected in the rubber flap on the valve body; The sealing surface that is said rubber flap is provided with several taper convex bodys, and described taper convex body contacts with the valve seat inclined-plane, contact jaw is symmetrically distributed on the valve seat inclined-plane near medium channel two ends end face.
As further improvement of the present invention, the sealing surface of said rubber flap is provided with lug boss near peripheral place, valve seat inclined-plane, and said lug boss is laminated on the valve seat inclined-plane.
The beneficial effect that the present invention adopts is: after having adopted this structure; The taper convex body forms linear sealing on the valve seat inclined-plane under the pressure effect of media flow; Sealing effect can not receive the influence of valve base surface roughness, has guaranteed sealing effect, and several taper convex bodys have formed multi-sealed; The long-time use of taper convex body causes still can guaranteeing sealing effect after the wearing and tearing therein, has prolonged the working life of rubber flap; The lug boss that is provided with is laminated on the valve seat inclined-plane, under the effect of media flow, has further guaranteed sealing effect.
Description of drawings
Fig. 1 is a schematic representation of the present invention.
Shown in the figure: 1 valve body, 2 valve seat inclined-planes, 3 medium channels, 4 rubber flaps, 5 taper convex bodys, 6 lug bosses.
Embodiment
Below in conjunction with Fig. 1, the present invention is done further explanation.
As shown in Figure 1; A kind of rubber lobe safety check; The valve seat inclined-plane 2 that comprises valve body 1, is connected with valve body, be arranged on valve seat inclined-plane central authorities medium channel 3, be movably connected in the rubber flap 4 on the valve body; The sealing surface that is said rubber flap 4 is provided with several taper convex bodys 5, and described taper convex body 5 contacts with valve seat inclined-plane 2, contact jaw is symmetrically distributed on the valve seat inclined-plane 2 near medium channel 3 two ends end faces.As further improvement of the present invention; The sealing surface of said rubber flap 4 is provided with lug boss 6 near place, 2 two ends, valve seat inclined-plane; Said lug boss 6 is laminated on the valve seat inclined-plane 2; The sealing surface of said rubber flap 4 is provided with lug boss 6 near 2 peripheral places, valve seat inclined-plane, and said lug boss 6 is laminated on the valve seat inclined-plane 2.
After having adopted this structure; The taper convex body forms linear sealing on the valve seat inclined-plane under the pressure effect of media flow; Sealing effect can not receive the influence of valve base surface roughness, has guaranteed sealing effect, and several taper convex bodys have formed multi-sealed; The long-time use of taper convex body causes still can guaranteeing sealing effect after the wearing and tearing therein, has prolonged the working life of rubber flap; The lug boss that is provided with is laminated on the valve seat inclined-plane, under the effect of media flow, has further guaranteed sealing effect.
Claims (2)
1. rubber lobe safety check; The valve seat inclined-plane (2) that comprises valve body (1), is connected with valve body, be arranged on valve seat inclined-plane central authorities medium channel (3), be movably connected in the rubber flap (4) on the valve body; The sealing surface that it is characterized in that said rubber flap (4) is provided with several taper convex bodys (5), and described taper convex body (5) contacts with valve seat inclined-plane (2), contact jaw is symmetrically distributed on the valve seat inclined-plane (2) near medium channel (3) two ends end face.
2. according to the said rubber lobe of claim 1 safety check, it is characterized in that the sealing surface of said rubber flap (4) is provided with lug boss (6) near valve seat inclined-plane (2) peripheral place, said lug boss (6) is laminated on the valve seat inclined-plane (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103203437A CN102797878A (en) | 2012-09-03 | 2012-09-03 | Rubber-flap check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103203437A CN102797878A (en) | 2012-09-03 | 2012-09-03 | Rubber-flap check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102797878A true CN102797878A (en) | 2012-11-28 |
Family
ID=47197111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103203437A Pending CN102797878A (en) | 2012-09-03 | 2012-09-03 | Rubber-flap check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102797878A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764164A (en) * | 2019-01-31 | 2019-05-17 | 苏州纽威阀门股份有限公司 | A kind of oblique flap valve |
| CN110107699A (en) * | 2018-02-01 | 2019-08-09 | 株式会社鹭宫制作所 | Dehumidification valve |
-
2012
- 2012-09-03 CN CN2012103203437A patent/CN102797878A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107699A (en) * | 2018-02-01 | 2019-08-09 | 株式会社鹭宫制作所 | Dehumidification valve |
| CN109764164A (en) * | 2019-01-31 | 2019-05-17 | 苏州纽威阀门股份有限公司 | A kind of oblique flap valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121128 |