CN2692222Y

CN2692222Y - Improved structure floor drain

Info

Publication number: CN2692222Y
Application number: CN 200420001485
Authority: CN
Inventors: 罗厚宣
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-01
Filing date: 2004-03-01
Publication date: 2005-04-13
Anticipated expiration: 2014-03-01

Abstract

The utility model discloses an improved structure floor drain, comprising a floor drain cavity and a floor drain cover. The body of the floor drain cavity is cylinder, and a water outlet pipe is arranged in the cavity. The exterior of the end part of the floor drain cover is provided with an annular grid bore which is used as a draining inlet through hole, the lower part is provided with a water retaining circular ring which can divide the floor drain cavity into an inside and an outside two annular cavities which are communicated with the bottom. The utility model is characterized in that the floor drain also comprises an annular floating cover and a retaining ring, wherein, the retaining ring is arranged in the water retaining circular ring at the lower part of the floor drain cover. The plain face of the upper end of the retaining ring and the plain face of the end part of the water outlet pipe in the middle of the cavity are in the same horizontal height, an annular floating cover is arranged on the retaining ring or the water outlet pipe, and the diameter of the through hole in the middle of the annular floating cover is the same as the internal diameter of the water outlet pipe of the floor drain cavity. The floor drain can assure the normal water draining and can effectively avoid the gas diffusion from the water draining pipe, so the indoor air can not be polluted, and the life grade can be increased. Meanwhile, the utility model has the advantages of simple structure, easy manufacture and low cost, which is convenient to popularize.

Description

Improve the floor drain of structure

Technical field

The utility model relates to a kind of device that is used for sewer, exactly, relates to that a kind of gas with foreign flavor that can prevent sewer overflows, the floor drain of processing and manufacturing easily, belongs to other device or the utensil technical field that are used for the sewerage system operation.

Background technology

In the kitchen of the washroom of common building and esidential building, mostly be installed on the sewer of getting rid of waste water, often be provided with floor drain in the entrance of sewer.The major function of this floor drain is in draining-off sewage, prevent that the bigger object of some volumes is along with sewage flows into sewer and blockage phenomenon, its another critical function stops peculiar smell overflow in the sewer with the ponding in floor drain " U " the type pipe bottom, pollutes room air.

Referring to Fig. 1, use commonplace drain structure at present as shown in Figure 1.Top at the floor drain cavity 2 of cylindrical shape is coated with "T"-shaped drain cover 1, and the downside of this drain cover 1 is provided with dash annulus 11, and this dash annulus 11 is separated into inside and outside two ring-shaped cavities with floor drain cavity 2.When the circular grid hole 12 of sewage by the outside, drain cover 1 end flows in the floor drain cavity 2, flowed into before this in the outer shroud cavity wherein, the dash annulus 11 of walking around drain cover 1 downside then enters ring cavity body in it, and then interfluent gutter 21, flows into sewer again.This floor drain apparatus forms " U " shape drainage channel with dash annulus 11 in floor drain cavity 2, and utilizes remaining water formation water seal in the floor drain cavity 2, stops the peculiar smell in the sewer to overflow by floor drain.But, in floor drain cavity 2 remaining water dry after, water seal can't form, the peculiar smell in the sewer is with regard to overflowing by floor drain very naturally in the inlet chamber, contaminated air.Owing to frequent bathing in summer, always there are a large amount of ponding " U " type pipe of floor drain bottom, and above-mentioned phenomenon also can often not take place.But, in other three seasons, if " U " of floor drain type pipe bottom do not have ponding or though ponding arranged, but the water yield is not enough, can not form water seal, the excessive phenomenon of the peculiar smell of sewer just is difficult to avoid.

This fault of construction of floor drain, not only ubiquity in many original houses also causes many owners and real estate developer's contradiction and quarrel in some newly-built dwelling houses.Especially after the epidemic disease wildness of SARS (Severe Acute Respiratory Syndrome) SARS spring in 2003, people are more urgent for the demand of fresh air, require the hope of transformation drain structure defective more sincere and strong.

For this reason, the applicant has developed a kind of floor drain (number of patent application: 200320100523.0) of novel structure.Referring to Fig. 2, briefly introduce the structure of this floor drain.The "T"-shaped drain cover 1 that this floor drain is covered by the floor drain cavity 2 of cylindrical shape, its top and being used to hides the movable floating head 3 of gutter 21 top through holes and is formed.Wherein drain cover 1 and floor drain cavity 2 are existing part, the innovation part be in the interior annular space chamber between the gutter 21 of the dash annulus 11 of drain cover 1 downside and floor drain cavity 2, set up a top be dome, middle be that connecting rod, bottom are the integrated component-movable floating head 3 of the torus shape buoyancy aid of hollow.When the locality was omitted water in printing, this activity floating head 3 made the water of floor drain cavity 2 normally to excrete out from gutter 21 owing to the buoyancy of water in the floor drain cavity 2 floats.At this moment, the water in " U " shape drainage channel in the floor drain cavity can form water seal, stops the peculiar smell in the sewer to overflow by floor drain.But, remaining water is less or dry and can't form water seal the time in floor drain cavity 2, this activity floating head 3 can drop on the sewer top because of deadweight owing to lack buoyancy of water its come-up of holder, the dome at its top covers sewer top through hole just, stop the peculiar smell of sewer excessive, keep room air not contaminated.

But, in the process that production sample is implemented to test, find can still discharge gas with foreign flavor, contaminated environment and air with should activity floating head 3 jack-up coming from the dirty gas that sewer comes up outward.In addition, the structure more complicated of this activity floating head 3, when processing and manufacturing, manufacturability is reasonable inadequately; Especially the torus shape buoyancy aid of hollow is difficult to make moulding with common Shooting Technique, if use extraordinary Shooting Technique or mould, then can make cost of production too expensive.

Summary of the invention

The purpose of this utility model provides a kind of floor drain that improves structure, and this floor drain not only can draining-off sewage, also can effectively avoid the gas with foreign flavor in the sewer excessive, keeps room air not contaminated; The advantage that has simple in structure, easy processing and manufacturing simultaneously and reduce cost, easy to utilize.

The purpose of this utility model is achieved in that a kind of floor drain that improves structure, include floor drain cavity and the drain cover that covers floor drain cavity top, the main body of described floor drain cavity is cylindrical shape, be provided with gutter in the middle of the cavity, the pipe that this gutter lower end extends out is used to stretch into sewer; The outside, described drain cover end is provided with circular grid hole, and as the drainage inlet through hole, downside is provided with the dash annulus, and this dash annulus is separated into inside and outside two ring-shaped cavities that the bottom is communicated with the floor drain cavity; It is characterized in that: this floor drain also includes circular floating head and back-up ring, and described back-up ring is placed in the dash annulus of drain cover downside, and described circular floating head is placed on this back-up ring or the gutter.

The interior lateral section on the dash annulus face of cylinder of described drain cover is step-like, its upside diameter is less than the downside diameter, its boundary is used for the installing and locating of described back-up ring, and the end plane of the middle gutter of transverse plane and described cavity is positioned at same level height on this back-up ring.

The external diameter of described back-up ring less than the downside diameter in the dash annulus face of cylinder of described drain cover greater than its upside diameter.

The external diameter edge of described circular floating head upwards is provided with chimb, and the external diameter of this chimb annulus is slightly less than the upside diameter in the dash annulus face of cylinder of described drain cover.

The intermediate throughholes diameter of described circular floating head is identical with the gutter internal diameter of described floor drain cavity.

The height of gutter in the floor drain cavity in the described floor drain cavity should be not less than 50 millimeters.

Described floor drain cavity, drain cover, circular floating head and back-up ring all are the integral member of injection mo(u)lding, and its material is ABS engineering plastics or PVC plastics.

The utility model is a kind of floor drain that improves structure, in the cavity between the gutter of the dash annulus of drain cover downside and floor drain cavity, has set up a back-up ring and circular floating head.When the locality was omitted water in printing, this circular floating head made the water of floor drain cavity normally to excrete out from gutter owing to the buoyancy of water in the floor drain cavity floats.When the more formation water seal of remaining water in " U " shape drainage channel in the floor drain cavity, this floor drain can stop the peculiar smell in the sewer to overflow by floor drain naturally.But remaining water is less or dry and can't form water seal the time, this circular floating head can rely on its deadweight to be placed on the back-up ring or the gutter top in default of its come-up of buoyancy of water holder in the floor drain cavity.Because the through hole in the middle of the circular floating head is identical with the gutter internal diameter just, the gutter of dirty this floor drain of gas process that produces in the sewer and the intermediate throughholes of circular floating head enter the enclosure space of floor drain cavity upper end, and the air pressure that this dirt gas produces can be pressed in this circular floating head on the back-up ring.Because the diametric clearance on the external diameter of circular floating head and the dash annulus face of cylinder of drain cover is very little, the below, space between them is stopped by door again, therefore can effectively stop the peculiar smell of sewer outwards to overflow.In addition, two designs of part of increase are all very simple and practical, and processing and manufacturing easily is with low cost, makes to the utlity model has extraordinary popularizing application prospect.

Description of drawings

Fig. 1 is the drain structure schematic diagram that uses now.

Fig. 2 is that number of patent application is 200320100523.0 drain structure schematic diagram.

Fig. 3 is floor drain that the utility model the improves structure schematic diagram when being in hull-borne.

Fig. 4 be the utility model improve structure floor drain when not forming water seal, the schematic diagram that the dirty gas of isolated sewer discharges.

The specific embodiment

Referring to Fig. 3, the utility model is a kind of floor drain that improves structure, includes: the drain cover 1 that covers on floor drain cavity 2 tops, floor drain cavity 2, back-up ring 4 and the circular floating head 5 of cylindrical shape.Wherein the outside, the end of drain cover 1 is provided with circular grid hole 12, the inlet through hole that this grid hole 12 is drainings; The downside of drain cover 1 is provided with dash annulus 11, and this dash annulus 11 is separated into inside and outside two ring-shaped cavities that the bottom is communicated with the inner chamber of floor drain cavity 2.The lateral section is step-like in the face of cylinder of dash annulus 11, and its upside diameter is less than the downside diameter, and its boundary is used for the installing and locating of back-up ring 4.Because the external diameter of back-up ring 4 is slightly less than the downside diameter in dash annulus 11 faces of cylinder of this drain cover 1, locator card is contained in the inboard boundary in the face of cylinder of dash annulus 11 greater than its upside diameter again.The height of gutter 21 in cavity that is provided with in the middle of floor drain cavity 2 should be not less than 50 millimeters, and its lower end is stretched into sewer and is communicated with it.After back-up ring 4 installing and locating, the last transverse plane of this back-up ring 4 and the end plane of gutter 21 are positioned at same level height.The external diameter edge of circular floating head 5 upwards is provided with the chimb that is used to lead of 5-10 millimeter, and the external diameter of this chimb annulus is slightly less than the upside diameter in dash annulus 11 faces of cylinder of drain cover 1.Circular floating head 5 is placed on back-up ring 4 or the gutter 21, and the intermediate throughholes diameter of this circular floating head 5 is identical with gutter 21 internal diameters of floor drain cavity 2.After addle enters floor drain cavity 2 in from the circular grid hole 12 in the outside, the end of drain cover 1 gradually, can form the U-shaped water seal, water seal continues rising will make circular floating head 5 bubble through the water column, and makes addle can flow into gutter 21 and enters sewer.The water seal of this moment has airtight effect, and peculiar smell can not leak.

Referring to Fig. 4, in the time of can't forming water seal if floor drain cavity 2 interior remaining water are less or dry, this circular floating head 5 can rely on its deadweight to be placed on the back-up ring 4 or gutter 21 tops in default of its come-up of buoyancy of water holder.At this moment the dirty gas that produces in the sewer will enter the enclosure space of floor drain cavity 2 upper ends through the intermediate throughholes of the gutter 21 of this floor drain and circular floating head 5, and the air pressure that this dirt gas produces can steadily be pressed in this circular floating head 5 on the back-up ring 4.Because the diametric clearance between dash annulus 11 faces of cylinder of the external diameter of circular floating head 5 and drain cover 1 is very little, below, space between them is stuck again and is packed in dash annulus 11 interfacial doors 4 and stops, and, this pressure by air pressure still is not enough to pass door 4, and therefore at this moment the utility model can stop effectively that also the peculiar smell of sewer is excessive.

The utility model has been manufactured experimently the performance sample and has been implemented test, and test effect has been realized goal of the invention.

Claims

1, a kind of floor drain that improves structure includes floor drain cavity and the drain cover that covers floor drain cavity top, and the main body of described floor drain cavity is cylindrical shape, is provided with gutter in the middle of the cavity, and the pipe that this gutter lower end extends out is used to stretch into sewer; The outside, described drain cover end is provided with circular grid hole, and as the drainage inlet through hole, downside is provided with the dash annulus, and this dash annulus is separated into inside and outside two ring-shaped cavities that the bottom is communicated with the floor drain cavity; It is characterized in that: this floor drain also includes circular floating head and back-up ring, and described back-up ring is placed in the dash annulus of drain cover downside, and described circular floating head is placed on this back-up ring or the gutter.

2, the floor drain of improvement structure according to claim 1, it is characterized in that: the interior lateral section on the dash annulus face of cylinder of described drain cover is step-like, its upside diameter is less than the downside diameter, its boundary is used for the installing and locating of described back-up ring, and the end plane of the middle gutter of transverse plane and described cavity is positioned at same level height on this back-up ring.

3, the floor drain of improvement structure according to claim 1 and 2 is characterized in that: the external diameter of described back-up ring less than the downside diameter in the dash annulus face of cylinder of described drain cover greater than its upside diameter.

4, the floor drain of improvement structure according to claim 1 is characterized in that: the external diameter edge of described circular floating head upwards is provided with chimb, and the external diameter of this chimb annulus is slightly less than the upside diameter in the dash annulus face of cylinder of described drain cover.

5, the floor drain of improvement structure according to claim 1 is characterized in that: the intermediate throughholes diameter of described circular floating head is identical with the gutter internal diameter of described floor drain cavity

6, the floor drain of improvement structure according to claim 1 is characterized in that: the height of gutter in the floor drain cavity in the described floor drain cavity should be not less than 50 millimeters.

7, the floor drain of improvement structure according to claim 1 is characterized in that: described floor drain cavity, drain cover, circular floating head and back-up ring all are the integral member of injection mo(u)lding, and its material is ABS engineering plastics or PVC plastics.