CN210947049U

CN210947049U - Anti-return dirt device for toilet

Info

Publication number: CN210947049U
Application number: CN201921898006.XU
Authority: CN
Inventors: 陈立军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-07
Anticipated expiration: 2029-11-06

Abstract

The utility model relates to a dirty device is prevented returning by toilet seat belongs to sanitary facilities's technical field, this device includes flange main part and seal, the flange main part is by the valve casing, the check valve piece constitutes, the valve casing is the funnel type, its upper entry is the heavy-calibre, it is the slightly aperture of lower part to get in gradually downwards, the perpendicular downwardly extending of small-bore ring week is the lower export of valve casing, be equipped with outside abrupt eaves on the heavy-calibre, the inside wall of small-bore has a protruding portion, articulated check valve piece on the protruding portion, the whole cladding of sealed daub is suddenly eaves and is suddenly the upper portion inner wall of the heavy-calibre that meets with abrupt eaves. The utility model discloses a dirty device is prevented returning by toilet seat not only has the function of sealing, connecting and preventing returning the flavor, has still increased the function that prevents returning dirty, in case the sewer blocks up, prevents returning dirty valve and utilizes the effect that water produced the buoyancy to the valve block and close the passageway, prevents sewage reflux.

Description

Anti-return dirt device for toilet

Technical Field

The utility model belongs to the technical field of sanitary installation's technique and specifically relates to a dirty device is prevented returning by toilet seat.

Background

The sewer in a multi-storey and high-rise building is blocked, particularly the sewer in the old first storey is blocked most frequently, and as long as the sewer is blocked, sewage and dirt can flow back upwards through the toilet and flow into a room; inconvenience is brought to the life of people. The pedestal pan flange in the prior art can only play a role in connecting and sealing the pedestal pan and a sewer pipeline, and cannot solve the problem of sewage backflow.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a pollution return prevention device for a toilet bowl.

The utility model discloses a toilet bowl anti-return device, which comprises a flange main body, wherein the flange main body is composed of a valve casing, the valve casing is of a funnel shape, an inlet at the upper part of the valve casing is of a large caliber, and the valve casing gradually shrinks downwards to be of a small caliber and vertically extends downwards to be a lower outlet of the valve casing; an outward protruding eave is arranged on the large caliber, and the protruding eave and the inner wall of the upper part of the large caliber connected with the protruding eave are integrally coated by sealing cement; the side wall of the lower outlet is provided with an inward retraction part, a concave table of the retraction part is movably connected with a check valve plate, and the check valve plate is in sealing fit with the lower outlet.

As a further improvement of the utility model, the check valve sheet is composed of an annular cover ring and a cover plate sealed with the inner periphery of the annular cover ring, and the cover plate is made of two UPVC materials protruding outwards relatively.

As a further improvement, the annular cover ring and the contact surface of the lower outlet bottom wall are provided with a sealing rubber ring.

As a further improvement of the utility model, the valve casing is a UPVC plastic one-step forming body.

The utility model discloses a dirty device is prevented returning by toilet seat not only has the function of sealing, connecting and preventing returning the flavor, has still increased the function that prevents returning dirty, and in case the sewer blocks up, check valve block can self-closing, prevents to return dirty, and check valve block utilizes the effect of water to produce buoyancy to the valve block and closes the passageway, reaches the purpose that prevents the sewage reflux.

Drawings

FIG. 1 is a schematic structural view of the toilet bowl anti-contamination device of the present invention connecting the toilet bowl and the sewer;

FIG. 2 is a schematic view of a valve housing construction;

FIG. 3 is a schematic structural view of the anti-contamination device for toilet of the present invention;

FIG. 4 is a schematic view of a check valve plate;

FIG. 5 is a side view of the check valve plate.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The utility model discloses a toilet bowl anti-return device, which comprises a flange main body, wherein the flange main body is composed of a valve casing 1, the valve casing 1 is of a funnel shape, an inlet at the upper part of the valve casing is a large caliber 3, and the valve casing is gradually contracted downwards into a small caliber 4 and a small caliber 4, and vertically and downwards extends to form a lower outlet 5 of the valve casing 1; the inner diameter of the large caliber 3 is larger than the outer diameter of the toilet seat sewage draining exit 10, and the outer diameter of the small caliber 4 is smaller than the inner diameter of the sewer pipeline 9, so that the toilet seat sewage draining exit and the sewer pipeline are smooth.

The large-caliber 3 is provided with an outward protruding eave 6, the protruding eave 6 is arranged in the sewer pipeline 9 at the upper outlet 5 and the lower outlet 5 of the sewer pipeline 9, and in order to ensure the sealing of the protruding eave 6 and the sewer pipeline 9 and the sealing of the joint of the protruding eave 6 and the toilet bowl, the protruding eave 6 and the inner wall of the upper part of the large-caliber 3 connected with the protruding eave 6 are integrally coated by sealing cement 11. The side wall of the lower outlet 5 is provided with an inward retraction part, a concave platform of the retraction part is movably connected with a check valve plate 2, and the check valve plate 2 is matched with the lower outlet 5 in a sealing way.

The check valve plate 2 is composed of an annular cover ring 15 and a cover plate 12 sealed with the inner periphery of the annular cover ring, a connecting rod 14 fixed with the annular cover ring 15 into a whole is arranged on one side of the annular cover ring 15, U-shaped connecting pieces 13 are fixed at two ends of a concave table of the retraction part, and two ends of the connecting rod 14 are clamped in the U-shaped connecting pieces 13 and can rotate freely, so that the check valve plate 2 can be opened and closed freely by taking the connecting rod 14 as an axis. The cover plate 12 is made of two pieces of UPVC materials which protrude outwards relatively, a hollow structure is formed between the two cover plates 12, and when sewage flows back, the check valve plate 2 floats upwards under the action of buoyancy of the cover plates to seal the lower outlet 5.

And a sealing rubber ring 8 is arranged on the contact surface of the annular cover ring 15 and the bottom wall of the lower outlet 5. When the sewer pipeline is blocked, the check valve plate 2 is pushed to the lower outlet 5 by the upward backflow force of sewage and sewage, the lower outlet is blocked by the check valve plate 2, and the annular cover ring 15 and the lower outlet 5 seal the lower outlet 5 through the sealing rubber ring 8 on the annular cover ring to prevent sewage backflow.

The valve casing 1 is a UPVC plastic one-step forming body, is firm, durable and impact-proof, and is not easy to be damaged when a sewer is blocked and dredges the sewer pipeline through the valve casing.

Claims

1. A toilet bowl anti-return dirt device comprises a flange main body and is characterized in that the flange main body is composed of a valve casing (1), the valve casing (1) is of a funnel shape, an inlet at the upper part of the valve casing is of a large caliber (3), the valve casing is downwards gradually contracted into a small caliber (4), the periphery of the small caliber (4) vertically extends downwards to form a lower outlet (5) of the valve casing (1); an outward protruding eave (6) is arranged on the large caliber (3), and the protruding eave (6) and the inner wall of the upper part of the large caliber (3) connected with the protruding eave (6) are integrally coated by sealing plaster (11); the side wall of the lower outlet (5) is provided with an inward retraction part, a concave table of the retraction part is movably connected with a check valve plate (2), and the check valve plate (2) is in sealing fit with the lower outlet (5).

2. A toilet bowl anti-contamination device as claimed in claim 1, wherein the check valve plate (2) is formed by an annular cover ring (15) and a cover plate (12) sealed with the inner circumference of the annular cover ring, and the cover plate is made of two pieces of UPVC material protruding outward relatively.

3. A toilet bowl anti-contamination device as claimed in claim 2, wherein the contact surface of the annular cover ring (15) and the bottom wall of the lower outlet (5) is provided with a sealing rubber ring (8).

4. A toilet bowl anti-soil back device according to claim 1, wherein said valve housing (1) is a UPVC plastic primary molded body.