CN2179504Y

CN2179504Y - Pipeline check-valve

Info

Publication number: CN2179504Y
Application number: CN 93247413
Authority: CN
Inventors: 肖兰志
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-11
Filing date: 1993-12-11
Publication date: 1994-10-12
Anticipated expiration: 2003-12-11

Abstract

The utility model belongs to the indoor sanitation pipeline device with a check-valve for preventing wastewater from flowing back, particularly a pipeline check-valve. The inner wall of a pipe cavity is provided with a retainer ring, and the lower part of one side of the retainer ring is movably matched with a pin shaft. The both sides of the pin shaft are provided with valve sheets, balance weight objects, etc. The utility model solves the problem that sewerage, filth or odor are escaped outwards because of the clogging of a pipeline. The utility model has the advantages of simple structure, reasonable design, capital construction investment saving, etc.

Description

Pipeline check-valve

The utility model belongs to the domestic sanitary pipe device that stops the return of waste water check valve, is meant a kind of pipeline check valve especially.

Generally adopt cast iron tube at present in the drainage pipeline of ordinarily resident's domestic sanitary sanitary equipment, and the privileged site in pipeline is provided with the water bending pipe to prevent the general flavor of sewage, or input deodorant achieves the above object in sanitary equipment, above-mentioned utensil or articles for use exist in use when pipeline is blocked, sewage or dirt easily leak out from cleaners and polishes sewer mouth and pollute, and influence shortcomings such as health.

The purpose of this utility model is to provide a kind of pipeline check valve, assembling measures such as valve block and mass by adopting with the movable bearing pin both sides that connect of inner-walls of duct, reach and prevent the dirt that takes place because of line clogging, the generation of faults such as sewage outflow has overcome the purpose of prior art deficiency.

Overall structure of the present utility model is:

A kind of pipeline check valve comprises members such as valve block, bearing pin, mass; Pipeline 1 inwall is fastened with back-up ring 2, the fastening circular valve block 6 of bearing pin 3 one sides, the diameter of valve block 6 is between the inside and outside loop diameter of back-up ring 2, fastening with bearing pin 3, the mass 4 of opposite side is arranged in the valve chamber 5 that pipe side wall offers, when valve block is in level, with bearing pin 3 be rotating shaft mass 4 clockwise rotate the rotate counterclockwise moment of moment more than or equal to valve block 4.

The structure characteristic of back-up ring of the present utility model is:

Be fastened with the seal washer made from flexible material 7 at the back-up ring lower limb.

Accompanying drawing of the present utility model has:

Fig. 1 is an overall structure sketch of the present utility model.

Fig. 2 is plan structure figure of the present utility model.

Accompanying drawing has provided embodiment of the present utility model, in conjunction with the accompanying drawings embodiment of the present utility model is described as follows:

Overall structure of the present utility model as shown in Figure 1, bearing pin 3 is lived in selling with back-up ring 2 bottoms and is connected, back-up ring 2 lower edges are fastened with sealing rubber ring 7, circular valve block, mass and bearing pin are iron, adopt die casting moulding or welding fabrication, when valve block is horizontal, mass clockwise rotate the moment that rotates counterclockwise that moment is slightly larger than valve block, all the other structures are as mentioned above.

Working principle of the present utility model is as follows:

In the pipeline of the outlet of sewer bottom that this pipeline check valve is installed on cleaners and polishes, when not needing sewage effluent, because mass dead weight jack-up valve block seals the sewer mouth, when needs descend water, sewage or dirt press valve block fall enter drainage pipeline and be reset after valve block stop, be stranded in the pipeline of valve block bottom.

The obtained technological progress of the utility model is that this device overall structure is simple, convenient and practical, solved sewage and foul smell effectively and excessive problem has taken place, installed and saved the water bending pipe that connects on the drainage pipeline in the existing construction project, saved capital investment because of line clogging.

Claims

1, a kind of pipeline check valve comprises members such as valve block, bearing pin, mass; It is characterized in that pipeline 1 inwall is fastened with back-up ring 2, the fastening circular valve block 6 of bearing pin 3 one sides, the diameter of valve block 6 is between the inside and outside loop diameter of back-up ring 2, fastening with bearing pin 3, the mass 4 of opposite side is arranged in the valve chamber 5 that pipe side wall offers, when valve block is in level, with bearing pin 3 be rotating shaft mass 4 clockwise rotate the rotate counterclockwise moment of moment more than or equal to valve block 4.

2, a kind of pipeline check valve according to claim 1 is characterized in that being fastened with the seal washer made from flexible material 7 at the back-up ring lower limb.