RU207159U1 - QUICK COUPLING WITH TWO-WAY VALVE - Google Patents

Abstract

The utility model relates to pipeline fittings intended for use in liquid cooling systems. A quick-release connection with a two-way valve consists of two half-couplings connected by a quick-release connection, each of which contains a spring-loaded shut-off valve, the tip of which, when the half-couplings are connected, abuts against the counterpart, providing unlocking of the valves , and when disconnecting the half-couplings, the side surfaces of the check valve, made with a conical expansion, interact with the body section, the check valve consists of a plate made together with a tip, a divider and a glass with inlet holes tightened between them, in the fluid blocking section the disc of the disc is cylindrical with subsequent conical expansion, and the inner part of the body, in contact with the disc of the disc, has a narrowing protrusion made in planes of different angles to ensure a hermetic locking of the fluid, also in the body of one of the the half-couplings have a stuffing box seal. The achieved technical result is to increase the strength and reliability of the locking mechanism of the valve connection and to optimize the passage of the fluid through the connection. 5 p.p. f-ly, 4 dwg.

Description

The utility model relates to pipeline fittings, in particular to quick-disconnect couplings with a two-way shut-off valve, intended for use in liquid cooling systems.

A quick-release connection is known from the prior art (EPO patent No. EP 3599409 dated January 29, 2020), consisting of a male element and a female element. The male element comprises a cylindrical male body defining a longitudinal cavity and a distal neck, and a valve movable in the axial direction within the cavity, between the forward position, in which it closes the inlet, and a retracted position, in which it does not close the inlet. The female element contains a cylindrical female body, which forms a longitudinal cavity and a distal neck, a pressure element and a slide valve. The disadvantages of the known technical solution are due to the presence of a large number of elastic (rubber) seals, which significantly reduce the reliability of the product during operation at negative temperatures (down to -65 ° C). Also, their presence will inevitably lead to a rapid failure of the product.

A quick-disconnect connection of hydraulic and pneumatic lines is known, consisting of two half-couplings (see RF patent No. RU 2724061 C1 dated 06/19/2020), docked by means of a ball lock, containing valves located in the axial direction, consisting of locking and cylindrical parts, which in in the closed state, the half-couplings abut one against the other, providing docking and unlocking of valves, springs and sealing elements.

A quick-disconnect pipe connection is known (see RF patent No. RU 2283452 C1 dated 03/09/2005), consisting of two coupling halves connected by means of a ball lock, hermetically connected to the pipelines, each of which contains a stop valve seat and a stop valve located in the axial direction with with a sealing element, the valve heads in the connected state of the coupling halves abut one another, providing the valves unlocking. Technical solutions under patents No. 2724061 and 2283452 have the following disadvantages: the presence of a large number of right angles that violate the laminar flow of the liquid, as well as the presence of sealing elements on the valve locking mechanism, which leads to rapid wear of the locking mechanism.

The closest in terms of the set of essential features to the utility model is the quick-detachable connection of pipelines according to the patent RU 2062939 C1 dated 06/27/1996. The device consists of two half-couplings, each of which contains a spring-loaded shut-off valve with a sealing element. Valve seats are made in the bodies. The half-couplings are connected by means of a ball lock. In the undocked state, the valves are hermetically sealed. The locking section of the side surface of the valve is made conical and placed in front of the sealing element with the possibility of interacting with the conical section of the body. When connecting the half-couplings, the valve tips abut one against the other, which makes their mutual movement, as a result of which the passages between the valves and the seats are opened. The disadvantage of the prototype is the large number of foreign elements in the path of the coolant flow.

The technical result of the claimed invention is to increase the strength and reliability of the valve connection locking mechanism and to optimize the passage of the fluid through the connection.

The specified technical result is achieved by the fact that in the known quick-release connection with a two-way valve, consisting of two half-couplings connected by a quick-release connection, each of which contains a spring-loaded shut-off valve, the tip of which, when the half-couplings are connected, abuts against the counterpart, providing the valves unlocking, and when disconnecting the half-couplings the lateral surfaces of the check valve, made with a conical expansion, interact with the body section, the check valve consists of a plate made together with a tip, a divider and a cup with inlet holes tightened between them, in the fluid blocking section the disc of the disc is cylindrical with subsequent conical expansion, and the inner part of the body, in contact with the disc of the disc, has a narrowing protrusion made in planes of different angles to ensure a hermetic locking of the fluid, and a stuffing box seal is also located in the body of one of the half-couplings.

Thus, the cone-shaped connection of the disc of the disc and the protrusion of the housing is made in such a way as to ensure a hermetic locking of the fluid when the half-couplings are disconnected, not only under the action of a spring, but also under fluid pressure. Also, the absence of soft seals in the locking mechanism eliminates the rapid wear of the valve. In the locking mechanism of each half of the coupling, consisting of a nozzle, a plate and a section of the body in contact with it, the angles for the unimpeded passage of the laminar flow of the fluid are minimized.

The essence of the claimed technical solution is illustrated by drawings. FIG. 1 shows the quick disconnect in a closed state. FIG. 2 shows the quick disconnect in the undocked state. FIG. 3 shows the section for locking the current medium. FIG. 4 shows the narrowing protrusion of the half-coupling housing.

The claimed quick-release connection consists of two half-couplings 1, 2, connected by means of a ball lock containing balls 3 located in the radial channels of the wall of the body 4 of the half-coupling 1 and a jacket 5 locking them, which on the other side is attached to the body 6 of the half-coupling 2 by means of a thread. On the housing 4 of the coupling half 1 there is a sealing ring 7. The locking mechanism is located in each coupling half 1, 2, which consists of a glass 8, supported by a spring 9 from the side of the fitting 12, 13 and tightened between the splitter 14, 15 and the plate 16, 17. Housings 4 , 6 half-couplings 1, 2, are connected to the fittings 12, 13 with a washer connection. The divider 14, 15 is made conical with two radial recesses and is fixed to the plate 16, 17 by a screw connection. The plate 16, 17 is made in the form of a disk, on one side of which a cylindrical tip 18 is provided, and on the other, an elongated cylindrical protrusion for attaching the glass 8, 9 and fastening the divider 14, 15. The bottom of the glass 8, 9 has a through hole for stringing onto the plate 16 , 17. On the side walls of the nozzle 8, 9, at the point of the constriction, there are three inlet openings for the fluid streams separated by the splitter 14, 15. In the inner cavities of the housings 4, 6 of the half-couplings 1, 2 there is a narrowing protrusion 19 (Fig. 4), made in planes of different angles: 30 °, 90 °, 120 °. The 120 ° angle guides the fluid flow. The 90 ° angle is locking. The 30 ° cone guides and positions the valve disc 16, 17 relative to the valve body 4, 6.

The operation of the claimed quick-disconnect connection with a two-way valve is as follows.

In the closed state, the quick-release connection, thanks to the spring-loaded, abutting plates 16, 17, allows the fluid to pass through, creating a laminar flow at the exit thanks to the splitter 14, 15 and the nozzle 8, 9 with three inlet openings that divide the fluid flow into three streams. The preservation of the flow cross-sections is achieved by spaced the trays to the required distance. Thanks to the tips 18, made together with the closing plate 16, 17 of the valve.

To undo the connection, it is necessary to apply axial reinforcement to the jacket 5. The retracted jacket 5 will allow the balls 3 to move in the locking mechanism and, in turn, release the edge into the housing of the mating coupling half 1. Another coupling half 2 is connected to the jacket 5 by means of a threaded connection. When disconnecting the half-couplings 1, 2 under the action of the springs 10, 11 and the internal pressure of the fluid on the glasses 8, 9 and plates 16, 17, the discs of the plates 16, 17 hermetically adjoin the protruding internal cavities of the bodies 4, 6 and block the flow of the fluid. In the open state, both half-couplings 1, 2 are under the pressure of the fluid supplied to them.

In an additional embodiment of the utility model, the quick-release connection with a two-way valve contains a bayonet lock instead of a ball lock.

This scheme ensures disconnection of the connection with virtually no loss of fluid. Tightness is ensured by the fit of the locking parts and the O-ring made of frost-resistant rubber. The absence of soft seals of the locking mechanism eliminates the rapid wear of the product. The device is made of a non-magnetic alloy steel that is resistant to corrosion changes.

Claims (6)

1. A quick-release connection with a two-way valve, consisting of two half-couplings connected by a quick-release connection, each of which contains a spring-loaded shut-off valve, the tip of which, when the half-couplings are connected, abuts against the counterpart, providing unlocking of the valves; expansion, interact with a section of the body, characterized in that the shut-off valve consists of a plate made together with a tip, a divider and a glass with inlet holes tightened between them, in the section of fluid locking, the disc of the plate is cylindrical with subsequent conical expansion, and the inner part of the body , contacting with the disc of the disc, has a narrowing protrusion made in the planes of different angles to ensure a hermetically sealed fluid medium, and a stuffing box seal is also located in the housing of one of the coupling halves. 2. The quick-disconnect connection with a two-way valve according to claim 1, characterized in that the quick disconnect connection of the half-couplings is made in the form of a ball lock. 3. The quick-disconnect connection with a two-way valve according to claim 1, characterized in that the quick disconnect connection of the half-couplings is made in the form of a bayonet lock. 4. The quick-disconnect connection with a two-way valve according to claim 1, characterized in that the stuffing box seal is made in the form of an O-ring made of frost-resistant rubber. 5. The quick-disconnect connection with a two-way valve according to claim 1, characterized in that the divider is cone-shaped. 6. A quick-release connection with a two-way valve according to claim 1, characterized in that the narrowing protrusion of the bodies is made in planes of different angles of 30 °, 90 °, 120 °.

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