CN213418045U - Sewer pipe anti-reverse spring flap check valve - Google Patents
Sewer pipe anti-reverse spring flap check valve Download PDFInfo
- Publication number
- CN213418045U CN213418045U CN202020815422.5U CN202020815422U CN213418045U CN 213418045 U CN213418045 U CN 213418045U CN 202020815422 U CN202020815422 U CN 202020815422U CN 213418045 U CN213418045 U CN 213418045U
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- valve body
- flap
- check valve
- cylindrical valve
- spring
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Abstract
The utility model belongs to the technical field of sewer blowdown water installation technique and specifically relates to a downcomer is prevented reverse water spring and is turned over board check valve. The sewer pipe anti-water-return spring flap check valve comprises a cylindrical valve body and a flap arranged on the cylindrical valve body, wherein an outward brim is arranged at the upper opening of the cylindrical valve body, two supports are arranged on the lower end surface of the cylindrical valve body, the two supports are connected with a flap through a shaft pin, a drain hole is also arranged on the lower end surface of the cylindrical valve body, and the flap is covered or separated with the drain hole by taking a shaft pin as a shaft; the shaft pin is provided with a torsion spring, and the outer end part of the torsion spring is arranged at the center of the turning plate. The utility model discloses an overcome traditional industry and turned over board check valve and be used in the domestic shortcoming that anti-water can only the horizontal dress can not erect the dress that prevents, provide a downcomer and prevent water spring and turn over board check valve.
Description
Technical Field
The utility model belongs to the technical field of sewer blowdown water installation technique and specifically relates to a downcomer is prevented reverse water spring and is turned over board check valve.
Background
In the prior art, a traditional industrial check valve (without a spring and only horizontally installed) is adopted for preventing water from flowing down from a kitchen sink, a washbasin, a balcony laundry sink, a washing machine and the like, a check valve turnover plate is easily clamped by garbage in dirty water, the sealing is not tight, the anti-water-return effect is influenced, and the check valve turnover plate can not be particularly used in places such as a closestool, a urinal and the like where the check valve needs to be vertically installed.
Disclosure of Invention
In order to overcome the defect that the traditional industrial flap check valve can only be transversely installed for preventing reverse water in household and cannot be vertically installed, the utility model provides a spring flap check valve for preventing reverse water in sewer pipes.
The utility model provides a technical scheme that its technical problem adopted is: the sewer pipe anti-water-return spring flap check valve comprises a cylindrical valve body and a flap arranged on the cylindrical valve body, wherein an outward brim is arranged at the upper opening of the cylindrical valve body, two supports are arranged on the lower end surface of the cylindrical valve body, the two supports are connected with a flap through a shaft pin, a drain hole is also arranged on the lower end surface of the cylindrical valve body, and the flap is covered or separated with the drain hole by taking a shaft pin as a shaft; the shaft pin is provided with a torsion spring, and the outer end part of the torsion spring is arranged at the center of the turning plate.
The lower end surface of the cylindrical valve body is in an inclined plane shape.
The inner side surface of the turning plate is provided with a rubber sealing gasket, the edge of the drain hole is provided with a protruding spherical sealing surface, and when the turning plate is closed with the drain hole, the rubber sealing gasket is abutted against and sealed with the spherical sealing surface of the drain hole.
The beneficial effects of the utility model are that, can erect and install on the downcomer, especially can adorn on the blow off pipe below closestool, the urinal on, can play because of the trunk line blocks up the effect that prevents sewage and flow backward, solved the worries after of low floor resident family.
Drawings
Fig. 1 is the inversion structure diagram of the anti-reverse spring flap check valve of the sewer pipe of the utility model.
The device comprises an eave edge 1, a cylindrical valve body 2, a torsion spring 3, a turning plate 4, a shaft pin 5 and a sealing gasket 6.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the upper port of the cylindrical valve body (2) is provided with a brim edge (1) which is convenient to fix on the lower port of the water pipe, the lower end surface of the cylindrical valve body is designed to be an inclined plane, which is beneficial to opening the turning plate (4) by the gravity of water, one side edge of the lower end surface is provided with 2 supports which are connected with the supports of the turning plate by a shaft pin (5), the lower end surface of the cylindrical valve body is provided with a drain hole, and the edge of the drain hole is provided with a protruding spherical sealing surface (same. The inner surface of the turning plate is provided with a rubber sealing gasket (6). The shaft pin is provided with a torsion spring (3), and the action point of the torsion spring is at the central point of the turning plate, so that the pressure of the spring uniformly acts on the whole valve cover, and the sealing property of the valve is ensured. When the valve drains water, the turning plate is opened by the gravity of the water, and after the water is drained, the turning plate is closed by the elasticity of the torsion spring, so that the sewage is prevented from flowing backwards.
The reverse water-proof flap check valve with the spring can be conveniently fixed on sewer pipes such as kitchens and the like by a PVC movable joint and fixed on a toilet bowl and a sewage discharge pipe below the toilet bowl by AB glue or expansion screws.
Claims (3)
1. The sewer pipe anti-reverse spring flap check valve is characterized by comprising a cylindrical valve body and a flap arranged on the cylindrical valve body, wherein an outward brim is arranged at the upper opening of the cylindrical valve body, two supports are arranged on the lower end surface of the cylindrical valve body, the two supports are connected with a flap through a shaft pin, a drain hole is also arranged on the lower end surface of the cylindrical valve body, and the flap is covered or separated with the drain hole by taking the shaft pin as the shaft; the shaft pin is provided with a torsion spring, and the outer end part of the torsion spring is arranged at the center of the turning plate.
2. The downcomer anti-drainback spring flap check valve of claim 1, wherein the lower end face of the cylindrical valve body is beveled.
3. The sewer pipe anti-reverse spring flap check valve according to claim 1, wherein the inner side surface of the flap is provided with a rubber sealing gasket, the edge of the drain hole is provided with a protruding spherical sealing surface, and the rubber sealing gasket is abutted and sealed with the spherical sealing surface of the drain hole when the flap is closed with the drain hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020815422.5U CN213418045U (en) | 2020-05-16 | 2020-05-16 | Sewer pipe anti-reverse spring flap check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020815422.5U CN213418045U (en) | 2020-05-16 | 2020-05-16 | Sewer pipe anti-reverse spring flap check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213418045U true CN213418045U (en) | 2021-06-11 |
Family
ID=76224092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020815422.5U Active CN213418045U (en) | 2020-05-16 | 2020-05-16 | Sewer pipe anti-reverse spring flap check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213418045U (en) |
-
2020
- 2020-05-16 CN CN202020815422.5U patent/CN213418045U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |