RU2568014C1 - Multichannel quick release coupling - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to machine building, namely to multichannel quick release couplings of pipelines, and can be used where multichannel transportation of liquids, gases and fast, reliable separation of pipelines at some point, mainly in space rocket applications, is required. The multichannel quick release coupling contains the housing with the pipeline channels inside connected by means of hinged connections one ends of which are implemented in the form of spherical tips. The hinged connections are spring-loaded, and spherical tips of the hinged connection interacts with internal surfaces of pipeline channels which are conic and self-sealed by means of the sealing rings and protective washers placed in grooves of pipeline channels, and other ends of hinged connections from the side of companion pipeline channels with larger diameters, are implemented in the form of a part of sphere with the grooves for O-rings and protective washers, while the quick release coupling is clamped together with the lock device, and for prevention of mutual shift of plates of the housing the fixing elements are located inside.

EFFECT: invention provides tight and reliable connection and separation of pipelines.

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Description

The invention relates to mechanical engineering, in particular to space technology, and relates to systems and assemblies in which reliable and quick separation of pipelines is necessary.

Multichannel quick disconnect connections (BRS) are known in which the shared pipelines represent telescopic connections, i.e. "pipe in pipe", and are sealed on mating surfaces with elastomeric seals [German patents No. 1324446, No. 136039] and for reliable separation of parts of the quick couplers incorporate special pushing devices.

The presence of additional devices complicates the design, increases the complexity of manufacturing, increases the flight weight of the BRS, thereby reducing the payload.

In the manufacture, assembly and separation (undocking), high-requirements are imposed on multi-fitting BRS for the alignment of the joined pipelines and the limitation of the acting forces from the connected pipelines.

There are multichannel BRS, in which the connection of the channels is carried out on the end surfaces, according to the type of valve devices [Seals and sealing technique. Directory. Edited by A.I. Golubeva and L.A. Kondakova. M.: Engineering, 1986, pp. 221-240, Fig. 7.3, 7.10].

The disadvantages of such connections are also: high requirements for the alignment of the mating parts, the uniformity of the loads on the sealant, due to tolerances on the dimensions of the incoming parts; large forces of contraction of the separated parts of the BRS, compensating for the repulsive forces from the pressure of the medium in the joined pipelines of the BRS.

The closest in technical essence to the claimed multichannel quick disconnect connection with a swivel joint of pipelines is a pipe swivel selected as a prototype, housed in a rigid case in which one of the pipelines is made with an inner surface in the form of a part of a sphere conjugated with the spherical surface of the tip tip. The other end of the tip is cylindrical, inserted into the connected pipeline, i.e. "pipe in pipe" (copyright certificate No. 1295130 - prototype).

The disadvantage of this design is its limited capabilities, as it is not intended for multi-channel quick disconnect joints, requiring the coincidence of the centers of the spherical surfaces and their alignment to the mating cylindrical surfaces of the other end of the pipeline, which is technically difficult to connect at the same time 3, 5, etc. . pipelines.

The objective of the invention is to expand its capabilities to ensure a tight and reliable connection-separation, where the number of connected pipelines is more than three.

This object is achieved in that the multi-channel quick disconnect comprises a housing with piping channels located therein, connected by means of a swivel joint, one end of which is made in the form of a spherical tip, while the swivel joint is spring-loaded, and the spherical tips of the swivel joint interact with the internal surfaces of the pipeline channel which are made conical and self-sealed by means of o-rings and protective washers, size tapered in the grooves of the pipe channel, and the other ends of the swivel connection, from the side of the return pipe channel, are made as part of a sphere with grooves for the sealing rings and protective washers, while the quick-release connection is tightened by a locking device, and to prevent mutual displacement of the housing plates fixing elements.

The essence of the invention is illustrated by drawings, which show:

in FIG. 1 is a main sectional view of a multichannel BRS;

FIG. 2 is a view B of FIG. one;

in FIG. 3 is a plan view giving an idea of the layout and number of pipelines to be joined.

The multichannel BRS shown in FIG. 1, consists of a casing in the form of two plates 1 and 2 having pipeline channels 3 and 4, interconnected by means of a spring-loaded swivel joint 5.

The spring 6, on the one hand, compresses the spherical tips of the swivel joint 5 to the conical surface of the channel 3, in the grooves of which the sealing rings 7 and protective washers 8 are placed, and the contact of the swivel joint 5, made as a part of the sphere from the side of the return pipe channel 4, is made through the sealing rings 9 and protective washers 10 located in the grooves of the spherical surface of the swivel 5.

Both parts of the multi-channel quick disconnect connection are pulled together by a locking device 11, and to exclude the relative displacement of the plates 1 and 2, the fixing elements 12 are placed in them in the form of pins.

Replacing the cylindrical end of the tip with a spherical, i.e. a pair of “pipe in pipe” to a pair of “ball in pipe” having a 4th degree of freedom, allows the spherical seat of one pipe channel to be replaced with a conical seat.

The second end of the tip, made as part of a sphere, is inserted into the reciprocal pipe channel and represents a kinematic pair of “ball in pipe” with 4 degrees of freedom, which allows the hinge to self-install in sealing places, simplifying the assembly of the quick coupler, compensating for possible misalignments in manufacturing, assembly moving from exposure to temperatures and external loads.

Thus, the use of the claimed invention will expand its capabilities to ensure a tight and reliable connection-separation, where the number of pipelines is more than 3.

Claims (1)

A multi-channel quick disconnect connection comprising a housing with pipe channels located therein, connected by a swivel joint, one end of which is made in the form of a spherical tip, while the swivel joint is spring-loaded, and the spherical tips of the swivel interact with the internal surfaces of the pipe channel, which are made conical and self-sealing by means of o-rings and protective washers located in the grooves of the pipeline Ala, and the other ends of the swivel, from the side of the reciprocal pipe channel, are made as part of a sphere with grooves under the sealing rings and protective washers, while the quick-disconnect connection is pulled together by a locking device, and to prevent mutual displacement of the housing plates, fixing elements are placed in them.

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