RU1768857C - Sealing of siphon pipe-to-sewer pipe joint - Google Patents

Abstract

Usage: during installation and operation of the connections of sanitary appliances with sewage. SUMMARY OF THE INVENTION: A sealing element is disposed between the inner surface of the bell of one pipe and the outer surface of the other. The means for adjusting the preload force of the sealing element is made in the form of a nut made of a polymeric material with a conical shoulder. The element is made in the form of a cuff with a working edge in contact with the inner surface of the socket, a cylindrical threaded section on which the nut is mounted. An annular groove is made in the cuff with mating surfaces that interact with it. 1 ill.

Description

V about

iCo

00 joint venture

The invention relates to the field of installation and special construction plumbing, particularly during installation and operation of connections of sanitary appliances with sewage systems installed in residential and industrial premises.

It is known to seal the pipe connection of sanitary fixtures with a sewer. The sockets of cast-iron pipes are caulked with a sticky hemp strand or sealed with rubber rings, and the remaining space is filled with well-washed clay, asphalt mastic or cement mortar.

It is known to seal the connection of the pipes of sanitary appliances to the sewer network through a hydraulic lock (siphon). Siphons at the places where sanitary devices are attached to them are sealed with a smudged strand on a miner putty. The outlet of the pipe is lubricated with minium or whitewash, diluted on the linseed oil, wrapped with several turns of resin strand, which is also densely coated with minicum or white on top and slowly introduced into the socket of the outlet shaped part of the sewer pipe.

The winding should not reach the end of the output by 20-25 mm. The connection should be tight, not passing gases from the piping network and wastewater.

It is known to seal a sewer pipe comprising another sealing elastic member located between the inner surface of the bell of one pipe and the outer surface of the other. The seal is equipped with means for adjusting the preload of the reinforcing element, which is made in the form of a nut made of a polymer material with a conical shoulder. The sealing element is made in the form of a cuff with a working edge. in contact with the inner surface of the socket and a cylindrical threaded portion covering the outer surface of the pipe on which the nut is mounted. An annular groove is made in the cuff with mating surfaces that interact with it.

The known sealing of sewer pipes during installation requires a certain accuracy of the mating pipes in alignment, which is difficult to achieve under construction conditions. The threaded section on the pipe must always be protected from damage. It should be made in a strictly regulated size from the end of the pipe, while during installation the dimensions may vary. The connection of the elastic element with the threaded section will not give the desired result and the tightness of the seal is not achieved on the threads. Tapping on pipes is not technologically advanced, bulky and requires tooling and equipment. Siphon and sewer pipes are limited in material composition because threading is necessary. All this technology in different industries requires

certain picking efforts.

The aim of the invention is to increase the reliability of the seal, increase durability, improve working conditions.

This goal is achieved by the fact that in the known seal of the siphon pipe with a sewer containing a rubber seal, the latter is made in the form of a sleeve with an expandable apron, the outer diameter of which is cut into grooves in contact with the inner surface of the socket, and the threaded part on which the nut with a conical bead. The drawing shows the proposed

seal, general view.

The seal consists of a pipe 1, on which a rubber sleeve 2 with a conical diameter of the inner end is mounted tightly along the outer diameter of the pipe

groove 3 and threaded part 4, for screwing the plastic nut 5 with a tapered collar 6. The coupling 2 is made with an expanding apron 7, the outer diameter of which is cut into grooves to connect to the inner surface of the sewer pipe 8. The annular grooves give the surface of the coupling elasticity, accessibility for a larger area of contact with the socket.

The seal works as follows: it is tightly mounted on the siphon pipe and inserted into the sewer pipe 8. The nut 5 is screwed onto the sleeve and the pressure of the conical shoulder 6 of the nut 5 on

the cone of the apron 7 is the seal of the outer surface of the apron with the inner surface of the sewer pipe 8.

The use of such a seal allows it to be manufactured and assembled complete with a siphon. Its manufacture is technologically advanced and possible with automatic presses. Sealing eliminates pipe alignment errors of up to 7 °, improves sealing reliability. During installation, operation is used repeatedly. The working conditions of the installer are improved, there is no need to cut threads on pipes and protect them from damage, there is no question of providing equipment and tools

for making and threading

pipes

Instead of disparate components, a siphon assembly with a seal is used in construction.

The serial production of siphons with the specified seal assembly is planned.

In said seal, the elimination of manual unproductive labor is achieved. The costs of conducting non-technological processes during the installation of sanitary appliances are reduced. Tests of the proposed seal have shown that the above advantages over the prototype are undeniable and lead to an economic result, the effectiveness of the use of the seal.

Claims (1)

SUMMARY OF THE INVENTION Seal of a siphon pipe with sewage system, comprising one located between the inner surface of the socket the pipe and the outer surface is another sealing elastic element, characterized in that, in order to increase the reliability of the seal, it is equipped with means for adjusting the compression force a sealing element made in the form of a nut made of a polymer material with a conical collar, the sealing element is made in the form of a cuff with a working edge in contact with the inner surface the socket, and a cylindrical threaded section on which the nut is installed, while in the cuff an annular groove is made with reciprocal mating surfaces interacting with it.