CN2184828Y

CN2184828Y - Anti-overflow device for drainage pipe block

Info

Publication number: CN2184828Y
Application number: CN 94201432
Authority: CN
Inventors: 李援; 刘光晓
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-15
Filing date: 1994-01-15
Publication date: 1994-12-07
Anticipated expiration: 2004-01-15

Abstract

The utility model discloses a blockage and overflow prevention device for sewer lines. The utility model is characterized in that connecting bodies are two concentric hollow cylinders; a closing valve and a valve rod penetrate through a concentric hole; the lower part of the closing valve is provided with a floater. When the sewer line is not blocked, sewage flows through a channel which is arranged among the connecting bodies and the closing valve. When the sewer line is blocked, the rising sewage floats the floater, the closing valve blocks the upper end openings of the connecting bodies, and thus the purpose that the sewage is not overflowed is achieved. The utility model has the advantages of simple structure and convenient installation, and is suitable for being arranged on floor drains of families, hotels, etc.

Description

Anti-overflow device for drainage pipe block

The utility model belongs to drainage pipeline in the room and stops up the device that prevents the backing up of sewage outflow.

Live the resident of building, what worry most is that drainage pipeline stops up, and backing up of sewage overflows, soak floor, carpet, drain to downstairs, damage ceiling, wall, furniture, the ground in room downstairs along the ground seam, in case sewage flows in the power line socket hole of wall, very easily causes short circuit, even breaking out of fire, consequence is serious, in order to prevent that above accident from taking place, people have invented anti-overflow valve, but the complex structure that has, what have can not directly install at existing drainage pipe place, the repacking trouble.

The purpose of this utility model is, for overcoming the deficiency of prior art, provides a kind of simple in structure, and the drainage pipeline of being convenient to install at original drainage place stops up anti-outflow device.

The utility model can be realized with following mode:

The device of forming by connecting body and closure, described connecting body is two concentric hollow cylinders, there is chimb in its upper end-hole outside, lower end mouth has inside lead angle, closure is made up of draught excluder, valve rod and buoyancy aid, and valve rod links to each other with draught excluder, and valve rod passes from the concentric hole of connecting body, position limit pin radially penetrates the valve rod upper end, and buoyancy aid is arranged at the draught excluder bottom.

Outer side wall at connecting body has seal groove.

Good effect of the present utility model:

Backing up of sewage in the time of reliably preventing the drainage pipeline obstruction, the utility model is simple in structure, and processing and easy for installation is not particularly damaging under the existing facility situation, at air draught or ground leak, installs this device at an easy rate additional.

Fig. 1 is a kind of example structure schematic representation of the utility model;

Fig. 2 is the another kind of example structure schematic representation of the utility model.

The utility model is described in further detail below in conjunction with accompanying drawing:

Connecting body is two concentric hollow cylinders, its inner hollow cylinder 4 highly is lower than outside hollow cylinder 1, there is chimb in the hollow cylinder 1 upper end-hole outside, lower end mouth has inside lead angle, closure is made up of draught excluder 6, valve rod 2 and buoyancy aid, and valve rod 2 and draught excluder 6 are by being threaded or integrally welded, and valve rod 2 upper ends are passed from the concentric hole of connecting body, position limit pin 3 radially penetrates valve rod 2 upper ends, and buoyancy aid 7 is arranged at draught excluder 6 bottoms.Buoyancy aid 7 is sphere or hemisphere, and unimpeded for guaranteeing effluent discharge, the diameter of draught excluder 6 is less than the diameter (seeing shown in the accompanying drawing 2) of outside hollow cylinder 1.

The utility model can be installed in air draught place or ground leak, and when line clogging, water level rises, levitating buoyancy aid 7, promote draught excluder 6, block the drainage hole of connecting body, make the sewage can be not excessive, when pipeline no longer stops up through dredging, closure falls under action of gravity, and position limit pin 3 retainings are at boring cylinder 4 places, leave effluent discharge passage between connecting body and the closure this moment, guarantees that discharging is unimpeded.

For connecting body and air draught or ground leak are closely contacted, seal groove 5 is arranged on the outer side wall of connecting body, rotation rubber seal in the seal groove 5, the utility model can be with nylon or plastics manufacturing.

Claims

1, a kind of drainage pipeline stops up anti-outflow device, comprise connecting body and closure, it is characterized in that: described connecting body is two concentric hollow cylinders, its upper end-hole outside has chimb, lower end mouth that inside lead angle is arranged, and closure is made up of draught excluder, valve rod and buoyancy aid, valve rod links to each other with draught excluder, valve rod passes from the concentric hole of connecting body, and position limit pin radially penetrates the valve rod upper end, and buoyancy aid is arranged at the draught excluder bottom.

2, device according to claim 1 is characterized in that: the outer side wall at connecting body has seal groove.

3, device according to claim 1 is characterized in that: buoyancy aid is sphere or hemisphere.

4, device according to claim 1 is characterized in that: the diameter of draught excluder is less than the diameter of outside hollow cylinder.