CN2283682Y

CN2283682Y - Apparatus for against overflow of water for sewer

Info

Publication number: CN2283682Y
Application number: CN 97201215
Authority: CN
Inventors: 任庆怀
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-02-05
Filing date: 1997-02-05
Publication date: 1998-06-10
Anticipated expiration: 2007-02-05

Abstract

The utility model relates to a water return device which prevents the reverse overflow of sewage in sewers. The utility model is mainly composed of a cavity body and a hollow floating ball, the upper and the lower parts of the cavity body are provided with an upper water opening and a lower water opening. The hollow floating ball is arranged in the cavity body, and the diameter of the ball is slightly larger than the diameter of the upper water opening. When a sewer is clogged and pressure in the sewer rises, the hollow floating ball is compelled to float upwards to block the upper water opening exactly to prevent the overflow of sewage, dirt, smell, etc. The water return device of the utility model is arranged on the interfaces of sanitary fixtures such as the sinks of kitchens and washrooms, etc. and drainage pipes to prevent the overflow of back flow effectively and keep the sanitation, the cleanness and the dryness of environment.

Description

The sewer back flow device

The utility model relates to the back flow device device that a kind of sewage that stops sewer pipe oppositely overflows.

When pressure in the sewer pipe raise, sewage can reflux, and oppositely overflows from the sanitary installation such as pond of kitchen, washroom, and sewage, dirt, water worm etc. are mixing foul smell overflows thereupon, causes environment pollution.In order to solve this irritating problem, have some and return water self-con-tained unit or floor drain apparatus, generally adopt valve, baffle arrangement, more complicated.

The purpose of this utility model is to provide a kind of sewer back flow device, makes it simple in structure, and is easily manufactured, can prevent effectively that sewage backflow from overflowing.

The purpose of this utility model is achieved in that in a kind of sewer back flow device mainly have a cavity, the upper and lower filling pipe end and the following mouth of a river of respectively having of cavity.A hollow float is arranged in the cavity, and the slightly larger in diameter of hollow float is in the diameter of filling pipe end.Cavity part around filling pipe end is smooth cone.

The utility model sewer back flow device device because a hollow ball float arranged in cavity, stops up when sewer like this, and during increased pressure in the sewer pipe, this pressure forces hollow float upwards to float.Again because of the slightly larger in diameter of ball float in the diameter of filling pipe end, and cavity part around filling pipe end is smooth cone, therefore hollow float is just blocked the below of filling pipe end, and it is excessive that sewage, dirt, foul smell etc. can not be backflowed, and anti-effectively backflow is overflowed.The utility model device mainly is made of cavity and ball float, and is simple in structure, easily manufactured.

Below in conjunction with drawings and Examples the utility model is further specified:

Accompanying drawing is the utility model sewer back flow device setting drawing.

Among the figure: 1. 3. times mouths of a river of cavity 2. filling pipe ends, 4. hollow floats, 5. bottoms, 6. ponds, 7. gutters

Sewer back flow device shown in the drawings is installed between the delivery port and gutter (7) in pond (6).Back flow device mainly is made up of cavity (1) and hollow float (4).The upper and lower filling pipe end (2) and the following mouth of a river (3) of respectively having at cavity (1) links to each other with the delivery port and the gutter in pond respectively.Hollow float (4) is installed in the cavity (2), and its slightly larger in diameter is in the diameter of filling pipe end (2).Cavity (1) is a cylindrical shape, but the cavity around filling pipe end (2) partly is smooth cone.In the bottom of cavity (1) bottom (5) is arranged.This installs all connecting portions sealing all is housed according to a conventional method.When sewer stops up, hollow float (4) come-up is blocked filling pipe end (2), make sewage dirt not excessive, if this moment from top toward the pond pouring because the pressure in the sewer is pushed down ball float, water just can not be from the delivery port outflow in pond, can make people find that in time sewer stops up, as long as open bottom (5) this moment, draw out dirt, can carry out the blowdown mediation.

The utility model back flow device can be installed in the interface of sanitary installation such as the pond of kitchen, washroom and gutter, particularly is installed in one deck and one-storey house of building.

Claims

1, a kind of sewer back flow device, has cavity (1), the upper and lower of cavity (1) respectively has the filling pipe end (2) and the following mouth of a river (3), it is characterized in that: a hollow float (4) is arranged in cavity (1), and the diameter of hollow float (4) is coughed up the diameter greater than filling pipe end (2).

2, back flow device according to claim 1 is characterized in that: filling pipe end (2) cavity all around partly is smooth cone.

3. back flow device according to claim 1 is characterized in that: in the bottom of cavity (1) bottom (5) is arranged.