CN2586751Y - Sewage check valve - Google Patents
Sewage check valve Download PDFInfo
- Publication number
- CN2586751Y CN2586751Y CN 01217472 CN01217472U CN2586751Y CN 2586751 Y CN2586751 Y CN 2586751Y CN 01217472 CN01217472 CN 01217472 CN 01217472 U CN01217472 U CN 01217472U CN 2586751 Y CN2586751 Y CN 2586751Y
- Authority
- CN
- China
- Prior art keywords
- medium
- check device
- duck bill
- shaped
- utility
- 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.)
- Expired - Fee Related
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- Check Valves (AREA)
Abstract
The utility model relates to a sewage check valve, which belongs to a check device for preventing a medium from flowing reversely on a sewage pipeline. The utility model mainly comprises a valve body, a gland and a duck bill-shaped check device, etc., wherein, the duck bill-shaped device is placed on the inner part of the valve body. When the medium flows in a positive direction, the duck bill-shaped check device can be automatically opened under the action of water pressure. Because the inner part of the duck bill-shaped check device is directly communicated and has no components such as a shaft, or a flower basket, etc., fibrous impurities in the medium can not be twisted on the upper side, and the medium can successfully pass; when the media flows reversely, the duck bill-shaped check device can be automatically closed, the backflow of the medium can be effectively prevented, and the safe operation of a piping line is assured. The utility model is characterized in long service life, safe operation, etc.
Description
The utility model belongs to the device that stops the medium reverse flow on the sewage conduct.
Existing flap valve has: several types such as swing type, shuttle-type, butterfly and sphere.But above-mentioned several flap valve are if be installed on the sewage conduct, especially on the urban sewage pipe owing to contain a large amount of fibrous impurity in the sewage, be easy to be wound into above-mentioned flap valve axle or or the gaily decorated basket on, cause that sealing is malfunctioning, cause flap valve to lose the non-return effect.
The purpose of this utility model is to overcome the weak point in the above-mentioned technology, and a kind of novel dirty flap valve of development makes the sealing performance of flap valve not be subjected to the influence of fibrous impurity in the pipeline.
Technical scheme:
Wastewater stopping valve mainly is made up of valve body, gland, duck-beak type check device, outlet valve, drain plug etc.The duck-beak type check device is placed in the valve body, and with the ring-type gland it is compressed, and when medium was made forward flow by the flow direction valve mark, the duck-beak type check device can be opened under hydraulic action automatically.Because this device inner straight and not having spool or members such as the gaily decorated basket.Therefore above fibrous impurity can not be wrapped in, medium is passed through smoothly.When medium was done reverse flow, the duck-beak type check device will be closed automatically, prevented the refluence of medium effectively.Simultaneously in the valve body arranged outside outlet valve and mudhole, with air and the greasy dirt that is deposited on the valve body bottom, the impurity etc. of getting rid of valve inner.
Accompanying drawing is represented the form of structure of wastewater stopping valve.Numeral in the accompanying drawing is expressed as follows respectively:
1, gland 2, valve body 3, duck-beak type check device 4, outlet valve 5, drain plug
Wastewater stopping valve is compared with other check-valves, and tool is not subjected to its sealing property of any impurity effect of sewage recklessly, Therefore greatly improve service life, have simultaneously safe and reliable to operation, water resistance is little, the energy-conservation characteristics such as obviously.
Claims (1)
1, wastewater stopping valve comprises valve body and duck-beak type device, and it is characterized in that: the duck-beak type device is contained in valve inner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01217472 CN2586751Y (en) | 2001-02-16 | 2001-02-16 | Sewage check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01217472 CN2586751Y (en) | 2001-02-16 | 2001-02-16 | Sewage check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2586751Y true CN2586751Y (en) | 2003-11-19 |
Family
ID=33635692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01217472 Expired - Fee Related CN2586751Y (en) | 2001-02-16 | 2001-02-16 | Sewage check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2586751Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972271A (en) * | 2016-06-24 | 2016-09-28 | 戴文平 | Multi-ring silica gel flexible internally-arranged one-way valve |
-
2001
- 2001-02-16 CN CN 01217472 patent/CN2586751Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972271A (en) * | 2016-06-24 | 2016-09-28 | 戴文平 | Multi-ring silica gel flexible internally-arranged one-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |