CN201144445Y - Anti-backflow device of water drain - Google Patents
Anti-backflow device of water drain Download PDFInfo
- Publication number
- CN201144445Y CN201144445Y CNU2007201914829U CN200720191482U CN201144445Y CN 201144445 Y CN201144445 Y CN 201144445Y CN U2007201914829 U CNU2007201914829 U CN U2007201914829U CN 200720191482 U CN200720191482 U CN 200720191482U CN 201144445 Y CN201144445 Y CN 201144445Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- movable cover
- annular steps
- removable cover
- tube body
- 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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Abstract
The utility model provides a sewer anti-backflow device which comprises a T-shaped tube body. Two ends of the tube body are provided with ports. A middle nozzle is a dredging opening which is covered with a cover. Annular steps which are distributed along the cross section of the tube body are arranged on an inner tube wall. A lower opening of the annular steps is provided with a movable cover plate which can swing to open and close. When being closed, the movable cover plate covers over the annular steps. The movable cover plate is round and provided with a rotating shaft along the outer edge. A block pin is arranged at the joint of the annular steps and the tube wall at the inner tube wall. The rotating shaft is clamped in a hole of the block pin. When being drained, water flow rushes to open the movable cover plate to be drained into a header pipe; when the header pipe is jammed; the sewage pushes the movable cover plate reversely, the movable cover plate is pressed over the annular steps, and a passageway inside the tube body is closed, thereby preventing the backflow of the sewage effectively and having the advantages of simple structure and reliable work.
Description
Technical field
The utility model relates to drainage pipe, particularly a kind of backward flowing preventing device of drainage pipe.
Background technology
In the building water drain system, the single gutter of each elemental user is an arm, and as tank, flush toilet, floor drain etc., the drainage pipe that with a family dwelling house is unit is for being in charge of, and the drainage pipe of building is house steward.Arm is connected respectively to be in charge of, and respectively is in charge of to gather at last to be connected to house steward.When running into house steward and stopping up, the sewage of upper strata resident family discharging can enter resident family of lower floor along being in charge of to pour in down a chimney, and pollutes, and does not also stop the device of backing up of sewage in the present drainage system.
The utility model content
The utility model purpose is to provide a kind of device that stops backing up of sewage, when house steward stops up, automatically cut off be in charge of with house steward between be connected.
Scheme of the present utility model is: the sewer backward flowing preventing device, the body that comprises " T " font, the two ends of body are interface, the mouth of pipe at middle part is the desilting mouth, be stamped lid on the desilting mouth, it is characterized in that: be shaped on the inner tubal wall along the circular step of body cross-sectional distribution, the end opening of circular step is provided with the removable cover that can swing switching, covers on circular step when removable cover is closed.
Removable cover is circular, and its outer is shaped on a rotating shaft, is shaped on card base in the junction of circular step and tube wall on the inner tubal wall, and rotating shaft is connected in the hole of card base.
The utility model has the advantages that: owing in body, be provided with the removable cover that to swing switching, current are washed removable cover open and are entered house steward during draining, when house steward stops up, sewage oppositely promotes removable cover, removable cover is pressed on the circular step, turn-off the path in the body, effectively prevented pouring in down a chimney of sewage, had advantage simple in structure, reliable operation.
Description of drawings
The utility model is described in further detail with embodiment with reference to the accompanying drawings below.
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is the shape and structure schematic diagram of removable cover.
Mark among the figure: 1 body, 2 rotating shafts, 3 card bases, 4 lids, 5 desilting mouths, 6 circular steps, 7 sealed muscles, 8 removable covers.
The specific embodiment
As shown in Figure 1, the body of embodiment is the body 1 of " T " font, and body 1 is made for plastics, and the two ends of body 1 are interface, is used for and conduits fused, and the mouth of pipe at middle part is a desilting mouth 5, is stamped lid 4 on the desilting mouth 5.
On inner tubal wall, be shaped on circular step 6 along the body cross-sectional distribution.
By water (flow) direction, the right of circular step 6 is an end opening, and end opening is provided with the removable cover 8 that can swing switching, and removable cover 8 covers on circular step 6 when closing.
On inner tubal wall, circular step 6 is shaped on two card bases 3 with the junction of tube wall, and rotating shaft 2 is connected in the hole of card base 3, and removable cover 8 can 2 be done 90 ° of rotations around the shaft.
In order to strengthen and the sealing of 8 of removable covers, on circular step 6, be shaped on sealed muscle 7.
This device is connected in the pipeline, and the left side of direction as shown connects and is in charge of, and the right connects house steward.During draining, current are washed removable cover 8 open and are flowed into main drain; When house steward's obstruction, sewage oppositely promotes removable cover 8, and removable cover 8 is pressed on the sealed muscle 7 of circular step 6, has turn-offed the path in the body, has effectively prevented pouring in down a chimney of sewage.
Claims (2)
1. sewer backward flowing preventing device, the body (1) that comprises " T " font, the two ends of body (1) are interface, the mouth of pipe at middle part is desilting mouth (5), be stamped lid (4) on the desilting mouth (5), it is characterized in that: be shaped on the circular step (6) along the body cross-sectional distribution on the inner tubal wall, the end opening of circular step (6) is provided with the removable cover (8) that can swing switching, and removable cover (8) covers when closing on circular step (6).
2. sewer backward flowing preventing device as claimed in claim 1, it is characterized in that: removable cover (8) is for circular, its outer is shaped on a rotating shaft (2), is shaped on card base (3) in the junction of circular step (6) and tube wall on the inner tubal wall, and rotating shaft (2) is connected in the hole of card base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201914829U CN201144445Y (en) | 2007-11-29 | 2007-11-29 | Anti-backflow device of water drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201914829U CN201144445Y (en) | 2007-11-29 | 2007-11-29 | Anti-backflow device of water drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144445Y true CN201144445Y (en) | 2008-11-05 |
Family
ID=40081317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201914829U Expired - Fee Related CN201144445Y (en) | 2007-11-29 | 2007-11-29 | Anti-backflow device of water drain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144445Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320465A (en) * | 2015-06-26 | 2017-01-11 | 湖北易木同层排水科技股份有限公司 | Multifunctional disease prevention device |
| CN107037833A (en) * | 2017-05-16 | 2017-08-11 | 中国水利水电科学研究院 | A kind of servicing unit for being used to control agricultural drain water level |
| CN112127437A (en) * | 2020-10-11 | 2020-12-25 | 应国珍 | Check valve for domestic sewage pipeline |
| CN112127436A (en) * | 2020-10-11 | 2020-12-25 | 应国珍 | Check valve for public sewage pipeline |
-
2007
- 2007-11-29 CN CNU2007201914829U patent/CN201144445Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320465A (en) * | 2015-06-26 | 2017-01-11 | 湖北易木同层排水科技股份有限公司 | Multifunctional disease prevention device |
| CN107037833A (en) * | 2017-05-16 | 2017-08-11 | 中国水利水电科学研究院 | A kind of servicing unit for being used to control agricultural drain water level |
| CN107037833B (en) * | 2017-05-16 | 2019-04-12 | 中国水利水电科学研究院 | It is a kind of for controlling the auxiliary device of agricultural drain water level |
| CN112127437A (en) * | 2020-10-11 | 2020-12-25 | 应国珍 | Check valve for domestic sewage pipeline |
| CN112127436A (en) * | 2020-10-11 | 2020-12-25 | 应国珍 | Check valve for public sewage pipeline |
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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: 20081105 Termination date: 20091229 |