RS50078B - INSTALLATION FOR ONE-way flow of liquids and air for the prevention of the return of unpleasant odors and the return of waste water to drains in sewage installations - Google Patents

Abstract

One-way fluid and air flow cartridge for preventing odors and sewage from returning to drains in sewer installations, which is mounted in a vertical drain pipe, comprising a pipe (12) having a rim (15) at the top. and having a sealed and tightly coupled cartridge assembly on the underside consisting of a plastic ring (4) to which a rubber washer (3) is glued, and through which a rubber membrane (2) is firmly connected by means of a holder (1). The application contains 1 more dependent claim.

Description

Technical field to which the invention relates

The invention belongs to the field of household installations for waste water drains, and specifically to devices for preventing the return of unpleasant odors and the return of waste water from sewage pipes.

According to the International Classification of Patents, the subject of the invention is classified, i.e. classified and marked with the classification symbols (<7>)E03C 1/28 and E03C 1/282.

Technical problem

The technical problem that is solved by this invention consists in the following: how to structurally solve the insert for one-way flow of liquid and air to enable the unhindered outflow of used water from the bathroom and similar rooms through suitable drains to prevent the return of unpleasant odors as well as the passage of various pests from the sewer pipes, especially in cases of lack of water in the drains due to prolonged non-use or in the summer months when the water evaporates due to high temperatures.

State of the art

It is common knowledge to drain waste water from household installations using suitable downspouts and tuned "siphon" systems in order to prevent the return of unpleasant odors and various vermin from sewage pipes into residential and other rooms, which in practice have proven to be insufficiently efficient. These unwanted and unpleasant phenomena are especially pronounced in the summer months when the water level in the sinks decreases due to evaporation under the influence of high temperatures, then depending on the change in atmospheric pressure and the frequency of use of sanitary devices.

By searching the patent documentation and reviewing the professional literature in this field, no similar solution to the technical problem was found.

Exposition of the essence of the invention

The insert for one-way flow of liquid and air is intended to prevent the return of unpleasant odors and the return of waste water at drains in sewage installations, as well as the entry of various vermin into the premises. The construction of the insert enables the free flow of liquid and air from the sink to the drainage pipe, and prevents the passage of liquid, polluted air and various vermin into the rooms, because the membrane closes the passage in that direction.

In the existing sewerage installations, there are two designs of drains: with vertical drain and with horizontal waste water drain, which requires the need to make two different constructions of the subject inserts that can be obtained in retail. In the case of vertical drains, an insert is provided, which consists of a plastic holder in the shape of a circular section, an elastic rubber membrane, a rubber washer and a plastic ring. Except for the holder, all elements are circular. The rubber membrane is attached with glue in the upper part, and the rubber washer and the plastic ring are glued to the entire contact surface. The compactness of the insert is achieved by binding all four elements using two plastic wedges that are inserted through the holder and other elements. The insert is inserted into a shorter plastic pipe with a tight fit and is placed as an assembly in the vertical opening of the downspout. For a drain with a horizontal drain, the construction of the insert is basically the same as for a vertical drain, with the fact that the rubber washer and the plastic support are made with half-holes on the upper half, so that the lower part replaces the partition located in the drain and it is removed by cutting in order to install the insert in question.

Regardless of where the cartridge is installed, the way it works is the same. The tongue of the membrane moves freely from right to left, that is, from the direction of the inside of the sink towards the sewer pipe and allows the passage of liquid and air. In the opposite direction - from left to right, the membrane cannot be turned because it rests on a rubber washer, and this one on a plastic ring, whose internal diameters are smaller than the length of the membrane, which prevents liquid and air from entering the downspout.

Brief description of the paintings

The invention is described in detail on the examples of implementation shown in the drawing in which:

Figure 1 - represents the plastic membrane holder,

Figure 2 - represents an elastic rubber membrane,

Figure 3 - represents an annular rubber washer, for a vertical drain,

Figure 4 - represents a plastic ring for a vertical drain,

Figure 5 - is an axonometric view of the insert with the method of installation in a downspout with a vertical drain,

Figure 6 - represents a rubber pad with a half-hole for a horizontal drain, Figure 7 - represents a plastic support with a half-hole for a horizontal drain and

Figure 8 - is an axonometric view of the insert with the method of installation in a downspout with a horizontal drain.

Detailed description of the invention

The insert for one-way flow of liquid and air installed in the drainage pipe of the sink in the bathroom or some expensive room in the building allows the normal pouring of the used lead into the sewer, and prevents the return of polluted air and various pests to the bathroom and other rooms where there are sinks. The need to install a liner in downspouts also exists if a "siphon" system functions in them, enabling this function by creating a water barrier. The "siphon" system does not always work efficiently, on the one hand, due to poor construction, and on the other hand, due to the disappearance of water in the "siphon" or due to the order of use (in the case of cottages) or in the summer months when the water evaporates due to high temperatures. Sometimes it can happen with a significant change in atmospheric pressure.

The insert in question is intended for installation in the vertical drain pipe of the downspout and for installation in the horizontal drain pipe of the downspout, depending on the existing solutions of the sewage system in residential and other premises.

The insert that is placed in the vertical drain pipe of the downspout consists of a plastic holder 1 in the shape of a circular section, an elastic rubber membrane 2, an annular rubber washer 3 and a plastic ring 4. The membrane 2, washer 3 and ring 4 are circular in shape and have the same outer diameter, while the washer 3 and ring 4 have circular openings 7, 8 which are leveled in the upper part. Ring 4 is thicker in order to fit better when inserted into the drain pipe. Membrane 2 is attached with glue in the upper part, and washer 3 and ring 4 are glued with the entire contact surface. The compactness of the insert is achieved by fastening all four elements of the insert with two plastic wedges 11. The insert is inserted tightly into a short plastic tube 12 with a tightly tied rim 15, and as an assembly it is placed in the vertical opening of the drain 13.

The insert that is placed in the horizontal drainage pipe of the drain 14 is also a compact unit, attached with plastic wedges 11, with the fact that the rubber washer 5 and the plastic support 6 are made with half-openings 9, 10 on the upper half so that the full part at the height "h" replaces the partition in the already made drain cups, whereby the partition is removed by simple cutting.

Regardless of where the cartridge in question is installed, the way it functions is the same. The rubber membrane 2 moves freely from right to left under the pressure of liquid and air, i.e. from the direction of the inside of the sink 13, 14 towards the drain sewer pipe and thus enables the passage of liquid and air. In the opposite direction - from left to right, the membrane 2 cannot be rotated, because it rests on the rubber washer 3, and this one on the plastic ring 4, that is, on the rubber washer 5 and this one on the plastic support 6, whose inner diameters are smaller than the diameter of the membrane 2, which prevents the entry of liquid and air, as well as various vermin into the inside of the drain 13, 14.

In a state of rest, when there is no outflow of water into the sewer, the membrane is slightly closed and if there is no pressure in the sewer, it is at rest and the polluted air does not escape. When anyone in the building flushes the toilet salt or the water from the bathtub, the pressure in the sewer pipe increases on the common vertical, putting pressure on the membrane that tightly closes the passage of polluted air into the room.

Both inserts can be set to work independently or together with the existing "siphon" system, which gives the whole system greater security. Preparing the downspout for using both systems is very simple. With a vertical spout, the insert is placed in the drain pipe and the existing plastic bell takes its place over it. In the case of a horizontal drain, only the plastic partition that ensures the minimum water level for the "siphon" is removed, and the role of the removed partition is taken over by the full part of the partition at the height "h" of the rubber washer 5 and the plastic support 6 glued to it.

Claims (2)

1. An insert for one-way flow of liquid and air to prevent the return of unpleasant odors and the return of waste water at downspouts in sewage installations, which is placed in the vertical pipe of the downspout, characterized by the fact that it consists of a tube (12) which has a rim (15) on the upper part and which is hermetically and tightly connected on the bottom side of the insert assembly consisting of a plastic ring (4) to which a rubber washer (3) is glued, and over which a rubber membrane (2) is placed and firmly connected by means of a holder (1). 2. Insert according to claim 1 and the second variant, for installation in the horizontal drainage pipe of the downspout, characterized by the fact that the rubber washer (5) and the plastic support (6) have a built-in height partition (ti).