CN2642853Y

CN2642853Y - Self-closing blowoff valve

Info

Publication number: CN2642853Y
Application number: CN 03247952
Authority: CN
Inventors: 吴建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-30
Filing date: 2003-06-30
Publication date: 2004-09-22
Anticipated expiration: 2013-06-30

Abstract

The utility model is a device, which is used in high residential buildings to prevent the indoor environment from being polluted by the sewage system belonging to the drainage building industry. The utility model is aiming at providing a self-closing wastewater valve; the utility model can effectively prevent pollutants in the high building sewage system from entering the room; the utility model can ensure the indoor sanitation and protect the health of residents. The utility model includes a branch pipe 1, a branch pipe 2 and a ring base 3; the utility model is characterized in that a waster water valve piece 5 is connected on the end face of the ring base 3 by a hinge 4 equipped on the upper end of the ring base 3. The internal circle of the branch pipe 1 is connected with the branch pipe 2; the internal end of the branch pipe 2 is connected with the ring base 3; the included angle between the disk wastewater valve piece 5 and the horizontal is 60 degrees. The branch 1 can be connected on the side of a main drainage pipe 6 of high buildings horizontally. The branch pipe 2 can be connected with the outlet of a U-shaped drainage pipe 7 horizontally. The utility model boasts of a simple structure, easy manufacture, convenient installation and excellent use effect.

Description

A kind of self-closing blowoff valve

Technical field: the utility model is to prevent indoor a kind of device of avoiding the pollution of drainage in many high residential buildings, belongs to the plumbing building trade.

Background technology: big or middle city multi-rise building dwelling house continues to bring out, the exclusive solely dormitory building at family emerges in an endless stream, numerous residents are high to the hygienic requirements of living environment, wish that all a warmth is arranged, the comfortable residence of quiet, health, therefore prevent that the indoor pollution of avoiding drainage from becoming more important.And the blowdown mechanism of the common use of current floor dormitory is U type obstructing instrument mostly.A certain amount of clear water is stored in the bottom of U type obstructing instrument, and this a certain amount of clear water can intercept the pollutant inlet chamber interior (mainly being gas) in the drainage.But U type obstructing instrument is defectiveness also, when the ponding in the U type obstructing instrument is dry, air pressure in the main blow-off pipe of highrise building drainage increases, when the perhaps indoor people of having uses extraction fan, it is indoor that the dirty gas of main blow-off pipe just might enter the resident continuously, may cause that personnel catch in the room.For example, World Health Organization investigation confirms, reason that a collection of resident in Building E, big garden the infects SARS (Severe Acute Respiratory Syndrome) misfortune caused of drainage is just washed in a pan in Hong Kong.Therefore, stop dirty gas in the highrise building drainage and flow backwards that to enter the room be the problem that the utility model need solve.

The utility model content: the purpose of this utility model provides a kind of self-closing blowoff valve, and it can intercept in the interior pollutant inlet chamber of high building drainage effectively, and guarantee room personnel's is healthy.The utility model is design like this: make the pollutant in high building-owner's drainage not enter every layer of room, the inventor considers will adorn an one way valve between main blow-off line and resident family's blow-off pipe, this one way valve is to make like this: small one and large one straight tube of two diameters links to each other, an annulus base obliquely is installed in narrow tube, the base upper end is connected with hinge, connect a dome on hinge, this piece dome just seals the annulus base.Because the annulus base is oblique installation, thereby dome (being valve block) also is oblique, becomes 60 ° angle with horizontal plane.This piece dome is because the weight driving fit always of self becomes an one-way cock on the annulus base.When such device being installed between high building-owner's blow-off pipe and each resident family's blow-off pipe of floor, the dirty gas of main blow-off pipe and sewage can not be reverse by valve and in the inlet chamber, thereby protected inside, room not contaminated effectively.And when sewage is arranged in the room from resident family's blow-off pipe outflow; dome can be pushed open certain angle (20 °～50 °) by sewage makes sewage enter main blow-off pipe smoothly, and when sewage stopped to discharge, dome can fall down automatically; the annulus base cover is closed, play a protective role.Therefore, advantage of the present utility model has these some: (one), reasonable in design, simple in structure, make easy, easy for installation, with low cost; (2), result of use is good, can prevent effectively that the pollutant of high building-owner's drainage from entering in the room, ensures that people are healthy.

Description of drawings: followingly further specify structure of the present utility model according to accompanying drawing.

Accompanying drawing 1: sectional plan view of the present utility model;

Accompanying drawing 2: the right view of accompanying drawing 1;

Accompanying drawing 3: one of user mode reference diagram of the present utility model;

Accompanying drawing 4: two of user mode reference diagram of the present utility model;

With reference to the accompanying drawings, we learn: a kind of self-closing blowoff valve, comprise arm 1, and arm 2, annulus base 3, its first design feature is at annulus base 3 upper end hinges 4 blowdown valve block 5 to be connected on annulus base 3 end faces.Its second design feature is all connecting branches 2 in the arm 1, the arm 2 inner annulus bases 3 that connect, and the blowdown valve block 5 of circular plate type becomes 60 ° of angles with horizontal plane.Its 3rd design feature is that arm 1 can flatly be connected the high building blowdown and is responsible for 6 sides.The outer end that its 4th design feature is arm 2 can flatly be connected the port of export of " U " type blow-off pipe 7 in the room.

Specific embodiments: the utility model arm 1, arm 2 can adopt the UPVC material to make.The utility model has two kinds of installation and applications: as shown in Figure 3: the utility model is installed in the high building blowdown is responsible for 6 sides.Total sewage that blowdown is responsible for is from top to bottom to discharge, but dirty waste gas in the past each opening flow; Blowdown outlet in each resident family connects a self-closing blowoff valve, just can intercept waste gas and be responsible for 6 from blowdown and be back to each resident family room and go, the blowdown refuse of each resident family (waste water, refuse) all can (promptly flow to arm 1 from arm 2) and inject 6 li of blow-off pipes in the self-closing blowoff valve.Equally, can see that at accompanying drawing 4 the utility model is mounted in the port of export of " U " shape blow-off pipe 7, when " U " shape blow-off pipe 7 was discharged, sewage, dirt just can be pushed blowdown valve block 5 open and emit in the room as fouling product.And the fouling product of outside (mainly being waste gas) is all intercepted outside by blowdown valve block 5, in the impossible inlet chamber.The utility model is simple in structure, but can protect the health in the room effectively, ensures the healthy of occupants, is a good job.The utility model is expected to very fast popularization and comes.

Claims

1, a kind of self-closing blowoff valve comprises arm (1), arm (2), annulus base (3), it is characterized in that by annulus base (3) upper end hinge (4) blowdown valve block (5) being connected on annulus base (3) end face.

2, a kind of self-closing blowoff valve according to claim 1 is characterized in that all connecting branches (2) in the arm (1), the inner annulus base (3) that connects of arm (2), and the blowdown valve block (5) of circular plate type becomes 60 ° of angles with horizontal plane.

3, a kind of self-closing blowoff valve according to claim 1 is characterized in that arm (1) flatly is connected blowdown and is responsible for (6) side.

4, a kind of self-closing blowoff valve according to claim 1 is characterized in that arm (2) flatly is connected the port of export of " U " type blow-off pipe (7).