SU1399565A1 - Quick-disconnecting joint - Google Patents

Abstract

The invention relates to high pressure pipe fittings and can be used in portable hydraulic and pneumatic actuators and flexible hoses. The purpose of the invention is to simplify the construction. The outer 1 and inner 2 connection nipples contain spring-loaded ball valves 3, which can be opened by means of a double-sided rod on the movable washer 5. The washer 5 is installed in the seating cavity of the outer nipple 1, it has holes for the passage of liquid or gas and the collar on the outer diameter, preventing influence of pulsations in the highway. The fittings 1 and 2 of the connection are closed using a connecting sleeve 11 with a bayonet lock. 1 3. p. F-crystals, 3 ill.

Description

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The invention relates to quick-disconnect couplings of pipe fittings with liquid or gas shut-off devices and can be used in portable hydraulic and pneumatic drives, for connecting flexible hoses with pressures up to 12.5 MPa, in particular, can be applied in the metallurgical industry on pipelines of slide gate drives gates of casting ladles, for fast

protrudes from the groove 9 to one third of its diameter. When connecting, the internal fitting 2 enters the landing cavity of the external fitting 1 and pushes the movable washer 5 up to the stop of the double-sided rod 6 into the valve balls of both fittings, while the rubber ring 10 engages the fitting diameter of the internal fitting 2. Then wind the connecting sleeve 11 onto the external fitting 1 so that pin 12

switching high pressure hoses 10 went into groove 14. When turning the lens 1

pin 12 interacts with groove 14 and brings together fittings 1 and 2, while double-sided W 6 of washer 5 presses on the balls and opens ball valves 3. In the extreme right position, pin 12 enters

 into the supporting part 13 of the groove 14 and locks the connection, and the movable washer 5 occupies the working position, balanced by the springs 4. The connection is ready for operation. In case of pressure pulsations in the pipeline, to prevent inadvertent disconnection, the washer 5 may be deflected to the right or left. This allows smoothing pulsations. The shoulders 7 on the washer 5 do not allow the washer to block the flow channels of the fittings during pressure pulsations.

25 When the joint is disconnected by a radial force applied to the sleeve 11, the pin 12 is withdrawn from the locking part 13 of the groove 14. At the same time, the spring 4 closes the ball valves 3, and when the valve of the outer fitting 1 is closed, the movable washer 5 is pushed into the free position.

tread heating furnaces, in conjunction with rolling mill cassettes; machine tools.

A: The purpose of the invention is to simplify the design: by reducing axial forces during: connection and separation of fittings.

FIG. 1 schematically shows i the proposed connection, axial section; top part; in fig. 2 is a view A of FIG. one; in fig. 3 - washer with double-sided stem. The quick disconnect connection of the pipelines contains the outer 1 and inner 2: fittings, in the working cavities of which spring-loaded ball valves are installed: 3. Booms 3. Conical springs 4 valves

Operated in the bore of the working cavity fittings. In the cavity of the outer fitting 1 for fitting the inner fitting 2, a movable washer 5 with a double-sided rod 6 is installed. The washer is made with flanges 7: outer diameter and through holes: openings 8, the cross-sectional area of which

exceeds the flow area of the valve holes. In the landing cavity of the fitting 1 i there is an annular groove 9, in which; rubber ring 10 for sealing; unions of fittings 1 and 2. The latter are fastened together with a connecting sleeve 11

 with a bayonet lock, which consists of a pin 12, pressed into the housing of the outer fitting 1, and a groove in the connecting sleeve 11. The locking part 13

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Claims (2)

1. A quick disconnect connection, containing the outer and inner fittings with spring-loaded ball valves and a connecting sleeve with an L-shaped bayonet groove with a locking part, characterized in that, for the purpose of the fitting, 14 is made at an angle to the longitudinal construction, in the outer saucer Noah axis connections, 50-70 ° Quick coupling works as follows. In the initial position, the fittings 1 and 2 are disconnected, and the ball valves 3 under the action of the springs 4 close the valve openings of the fittings. The movable washer 5 with a double-sided rod 6 moves freely in the seating cavity of the choke 1. Its mixing is limited to the left by the valve ball 3 and to the right by the rubber ring 10, which is in the free position 45 A movable washer is installed, which is made with bores and flanges in outer diameter, and in the center is provided with a double-sided stem for interacting with the valve balls. 2. The quick-disconnect connection according to claim 1, characterized in that, in order to reduce the force when connecting and uncoupling the unions, the L-shaped bayonet groove in the connecting sleeve in the locking part is 50 ° C to 70 ° at an angle to the axis of the connection . protrudes from the groove 9 to one third of its diameter. When connecting, the internal fitting 2 enters the landing cavity of the external fitting 1 and pushes the movable washer 5 up to the stop of the double-sided rod 6 into the valve balls of both fittings, while the rubber ring 10 engages the fitting diameter of the internal fitting 2. Then wind the connecting sleeve 11 onto the external fitting 1 so that pin 12 35 Invention Formula 1. Quick-disconnect connection, containing external and internal fittings with spring-loaded ball valves and a connecting sleeve with an L-shaped bayonet groove with a locking part, characterized in that A movable washer is installed, which is made with bores and flanges in outer diameter, and in the center is provided with a double-sided stem for interacting with the valve balls. 2. The quick-disconnect connection according to claim 1, characterized in that, in order to reduce the force when connecting and uncoupling the unions, the L-shaped bayonet groove in the connecting sleeve in the locking part is 50 ° C to 70 ° at an angle to the axis of the connection . Vida FIG. 2 FIG.