SU1046569A1 - Pipe joint - Google Patents

Abstract

COEAHHErfHEGROUB, at the socket end of one and the other one has a smooth end with sealing elements between them, characterized in that, with the help of tightness and increase in the deformability of the pipes in 1 h; The sealing elements are filled with trapezoidal shape, and between their lateral interacting surfaces are placed r р metic, while the seal element at the smooth end of the pipe is provided with a locking lug in the upper end part.

Description

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4 05 SP 9) CO

The invention relates to the construction of pipelines for transporting liquid media, and more specifically to the connection of water and sewer pipelines.

Compounds are known which consist of a bell with the smooth end of the pipe inserted into it, which are sealed with rubber o-rings or cuffs. The pipe at the smooth end has an annular groove for the rubber ring and a thrust collar for holding it in the joint at hydraulic pressure and on the socket a bevel with a grooved inner surface. At the same time, the installation of pipes about: is soldered with the help of special devices and mechanisms. After installation, the rubber ring in the joint is compressed by 45-6О% 1.

However, for ceramic pipes, such a connection cannot be accepted due to the presence at their ends of an ellipticity, insufficient socket strength for even crimping of the rubber sealing ring around the perimeter of the pipe ensuring the tightness of the joint.

The closest in technical essence and the achieved result to the invention is the combination of bell-shaped ceramic pipes with plastic sealer, sprayed on the inner surface of the socket (elastic plastic) and on the smooth end of pipes (rigid plastic). Moreover, plastic seals at the smooth end are (in cross section) the shape of a truncated cone, and in the socket part - rectangular.

After mounting the logs (with the introduction of a smooth end into the socket), the element at the smooth end is in a compressed state, creating a contact pressure causing a degree of - leaktightness of the butt joint {23I The disadvantage of the known butt joint is the unreliability of the hermetic part when axial and angular occurrences pipe deformations at the junction. For example, the depressurization of the joints occurs during axial deformation, when the smooth end of one pipe freely comes out of the socket. The other is 0 to 8-1.2 cm, since there is no locking device. There is also a depressurization of the joint when the joined pipes work as a console, i.e. one pipe is affected by a bolus load than by

another one, when one is lying on a denser base, but compared with another. In these cases, the angle beam element on the smooth end of the pipe will be compressed significantly more than the calculated one in the upper part, leaving no compression in the lower part of the joint. This joint, connection excludes the possibility of pipeline construction in complex soil (heaving and subsiding soils) and in seismic conditions.

The aim of the invention is to improve the leaktightness and deformability of pipes in butt joints, to prevent smooth outflow from the socket, the possibility of construction and operation of pipe joints in weak soils or seismic conditions.

The goal is achieved by the fact that in the connection of the pipes, in the socket end of one of which there is a smooth end, the other with sealing elements between them, sealing elements are trapezoidal in shape, and between their side interacting surfaces there is a sealant the pipe is provided in the upper end part with a locking lug. .

 The drawing shows the connection pipe.

The butt joint has a socket 1 with a smooth one inserted into it. with a pipe 2. A trapezoidal sealing element 3 is formed on the inner surface of the socket, and a sealing element 4 with a locking lug 5 providing the necessary adhesion of pipes during the curing period of the sealant 6, which is applied to the side surface sealing elements for bonding and obtaining a monolithic elastic-elastic connection.

Located between the socket 1 and the smooth end 2 of the pipe, the sealing elements 3 and 4 after curing the sealant 6 at the places of their gluing due to increased water tightness and adhesion to the pipe material, elasticity and solidity ensure reliable tightness of the connection while simultaneously influencing it with hydraulic pressure up to 5 kgf / cm (in cast-iron pressure pipes up to 11 kgf / cm and axial pipelines (displacements) in the joint up to 3.5 cm or angular up to 8 3 1О465694

Tightness and defibration of pipes with aggressive points or

at the joints, they are not disturbed by their aggressive anti-inflammatory agents in chemically and microbiologically waters.

with trans-stock

Claims (1)

PIPE JOINT, in the socket · end of one of which a smooth end of the other is installed with sealing elements between them, characterized in that, in order to increase the tightness and increase the deformability of the pipes at the joints, the sealing elements are made in a trapezoidal shape, and a sealant is placed between their side interacting surfaces while the sealing element at the smooth end of the pipe is provided in the upper end part with a locking protrusion. 1 1046569 2