RU1781498C - Screw joint for valves - Google Patents

Abstract

SUMMARY OF THE INVENTION: A sealing gasket is placed between the collars of the nozzle and the tip. On one of the shelves of the U-shaped capture, a through groove is made, on the other a threaded hole. The clamping element is made with a threaded section on the outer surface, mounted concentrically with a gap on the tip and contacts the end through one of the brackets with its collar, and the threaded section with a threaded capture hole. A shelf with a groove encompasses the fitting behind the shoulder and contacts it with the other end through another bracket. 2 ill.

Description

The invention relates to screw connections of pipe fittings and can be widely used in mechanical engineering and in a number of other branches of technology.

Screw connections are known comprising a fitting, a tip, a union nut and a flat metal gasket.

A common disadvantage of these connections is the difficulty of disconnecting the pipelines during the replacement of the fittings, as well as the difficulty of removing the metal sealing gasket from the reinforcement, since after deformation it tightly presses the connected nodes, which leads to a lengthy process of replacing the fittings.

Known screw connection containing a fitting and a tip, fastened together by a union nut.

Said screw connection does not provide a reduction in disconnection time during valve replacement.

It is also known screw connection containing a fitting and a tip, between

which installed a flat metal gasket fastened with a union nut provided with a support collar.

However, this device also does not provide a reduction in disconnection time.

The closest in technical essence to the claimed is a screw connection containing a fitting and a tip, between which there is a flat metal gasket, fastened with a union nut provided with a support collar.

The purpose of the invention is to improve the reliability of the connection and simplify installation.

This goal is achieved in that the screw connection of the pipe fittings, containing a fitting and a tip with collars, a gasket between them, replaceable horseshoe-shaped staples and a clamping element, is equipped with a U-shaped grip with a through groove on one of the shelves and a threaded hole on the other, The element is made with a threaded section on the outer surface, set to 4W

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it is updated with a gap on the tip and contacts its end through one of the brackets with its collar, and the threaded section with the threaded capture hole, and the other capture shelf with a groove covers the fitting behind the collar and contacts its inner end through the other bracket.

Fig. 1 is a perspective view of a screw connection with a longitudinal section; in FIG. 2 - disassembled connection.

The screw connection of pipe fittings contains a fitting 1 and a tip 2 with collars 3 and 4, respectively, an elastomeric gasket 5, removable horseshoe brackets b, 7 and a clamping element 8. The connection is equipped with a U-shaped gripper 9 with a through groove 10 on one of the shelves and a threaded hole 11 on the other. The coupler element 8 is made with a threaded section 12 on the outer surface 13 and is installed with a gap on the tip 2, while in contact with its end 14 through one of the brackets, for example, the bracket 7, with its shoulder 4, and the threaded section 12c with a threaded capture hole 11 9, wherein the other gripping shelf with a groove 10 covers the fitting 1 behind the shoulder 3 and in contact with it with its inner end 15 through another bracket 6.

The pipe fittings (fitting 1 with lugs 2) are connected using a clamping element 8, which is screwed into the threaded hole 11, made in one of the gripping shelves 9, with the end 14 through the horseshoe-shaped bracket 7 on the shoulder 4 of the lug 2 and pressed the latter to the end surface of the nozzle 1. The sealing of the tip 2 with the nozzle 1 is provided by a gasket 5 of easily deformable material. The separation of the tip 2 and the fitting 1 is carried out by unscrewing the clamping element 8, at

this through groove 10, made in the shelf capture 9, and the bracket 6 release the shoulder 3 of the fitting 1.

The design of the device provides

the ability to connect other fittings to one tip, for example, a larger diameter, and the ability to connect two tips to each other, or two fittings of different diameters, without the need for additional adapters. To connect the nozzle or the tip of a larger diameter, replaceable brackets b and 7 are used with large dimensions of the slots and the inner diameter, respectively, of the outer diameters of the connected tips and fittings.

Thus, the operational capabilities of the screw connection of the pipeline are significantly expanded.

fittings, installation is simplified and connection reliability is increased.

Claims (1)

SUMMARY OF THE INVENTION reinforcement comprising a fitting and a tip with a shoulder, on each a sealing gasket between them, interchangeable horseshoe-shaped staples and a clamping element, characterized in that, in order to increase reliable connection and simplified installation, it is equipped with a U-shaped grip with a through groove on one of the shelves and a threaded hole on the other, the clamp element is made with a threaded section on the outer surface is mounted concentrically with a gap on the tip and contacts its end through one of the brackets with its collar, and the threaded section with the threaded capture hole, and the shelf capture with a groove covers the fitting behind the collar and with its inner end through another bracket is in contact with it. 9 6 5 4 7 12 8, 2 FIG