CN2209174Y - Overflow stop device - Google Patents
Overflow stop device Download PDFInfo
- Publication number
- CN2209174Y CN2209174Y CN 94239138 CN94239138U CN2209174Y CN 2209174 Y CN2209174 Y CN 2209174Y CN 94239138 CN94239138 CN 94239138 CN 94239138 U CN94239138 U CN 94239138U CN 2209174 Y CN2209174 Y CN 2209174Y
- Authority
- CN
- China
- Prior art keywords
- filth
- stop device
- sandwich layer
- coupling head
- pipe
- 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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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to an overflow stop device used for preventing filth from reflowing and overflowing, composed of a hollow cavity body with a through hole. The upper edge of the cavity body is connected with a coupling head, and the lower part is connected with a sandwich layer. The filth enters the cavity body from the coupling head, the sandwich layer is expanded under the action of gravity, and the filth entersa pipeline. The sandwich layer is automatically closed after the filth passes. When the pressure in the pipe is bigger than the atmospheric pressure out of the pipe, the pressure in the pipe tightly presses the sandwich layer, and thereby, the effect of preventing the overflow of the filth is achieved.
Description
The utility model relates to the device that overflows that ends in a kind of draining drainage project, relates in particular to a kind of Over-flow-stop device that stops dirt to reflux and overflow.
At present, the draining blow-off line, the Chang Dangguan internal pressure is greater than pipe during outer atmospheric pressure, the excessive and contaminated environment of dirt, the utility model is discovery as yet in the field.
The purpose of this utility model provides a kind of Over-flow-stop device, and it can overcome the excessive and contaminated environment of dirt effectively.
The purpose of this utility model is achieved in that a kind of Over-flow-stop device, and by the cavity of hollow and through hole, its upper limb connects a coupling head, and the bottom connects an interlayer and forms.Dirt enters cavity from coupling head, under action of gravity, interlayer is opened and enters pipeline.Automatically close by the back interlayer, when pipe internal pressure during greater than the outer atmospheric pressure of pipe, the pipe internal pressure compresses interlayer, thereby reaches the excessive purpose of prevention dirt.
Owing to adopt such scheme, dirt can only unidirectionally be passed through, and by the time do not have straight tackling, design is unique, is easy to promote.
Embodiment below in conjunction with accompanying drawing further specifies the utility model.
Fig. 1 is a structural representation of the present utility model.
In Fig. 1, cavity 2 hollows and through hole, its shape can match according to the shape of pipeline, its upper limb connects a coupling head 1, coupling head 1 can be adopted threading to spin with pipeline or fix with screw, and it also plays the effect of packing ring, and the bottom of cavity 2 connects an interlayer 3, but the flexible material of interlayer 3 apparatus extensibilities is made, and its shape can be made in-line, cross, circular arc, triangle, polygon according to the size of required flow rate.
Claims (2)
1, a kind of Over-flow-stop device is characterized in that: by the cavity of hollow and through hole, its upper limb connects a coupling head, and the bottom connects an interlayer and forms.
2, Over-flow-stop device according to claim 1 is characterized in that: coupling head is the shirt rim that is positioned at the cavity upper limb, and itself and pipeline can adopt threading to spin, or fix with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94239138 CN2209174Y (en) | 1994-08-01 | 1994-08-01 | Overflow stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94239138 CN2209174Y (en) | 1994-08-01 | 1994-08-01 | Overflow stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2209174Y true CN2209174Y (en) | 1995-10-04 |
Family
ID=33846411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94239138 Expired - Fee Related CN2209174Y (en) | 1994-08-01 | 1994-08-01 | Overflow stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2209174Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011422A (en) * | 2010-11-22 | 2011-04-13 | 金真 | Device for preventing gas backflow in pipe |
-
1994
- 1994-08-01 CN CN 94239138 patent/CN2209174Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011422A (en) * | 2010-11-22 | 2011-04-13 | 金真 | Device for preventing gas backflow in pipe |
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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 |