RU2619520C1 - Valve ball valve - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: ball valve body is made with an internal cavity, with through radial cylindrical holes, the surface of which is in contact with the fixing elements, and a locking element rigidly fixed on the side of the outer stepped side surface of the housing. The elastic element is fixed to the body by means of a movable clutch with an internal cavity formed by a conical surface of the bore, passing into a cylindrical surface in contact with the fixing elements, which stepwise passes into another cylindrical surface of a larger diameter. On the lower end side, the sleeve is provided with a through groove, commensurate with the width of the locking element of the housing. The movable clutch is fixed to the body by means of a locking ring. The body is equipped with a rod. The stem is formed with an outlet fitting in the upper part, with an annular groove, the surface of which contacts the fixing elements, and with through holes in the lower part forming an inner central channel. An adapter is installed on the side of the inlet choke of the housing. The adapter is made with an outlet fitting and a seat with a ball locking element that covers the passage opening. The longitudinal grooves are made from the end surface of the outlet socket of the adapter.

EFFECT: ensuring operative shutdown of the flow of the working fluid and shutting off the ball valve from the device of the pneumatic equipment.

4 cl, 11 dwg

Description

The invention relates to general mechanical engineering, in particular to shut-off valves with a manual actuator, designed to pass the medium flow through the valve path when it is open and to shut off the medium flow when it is disconnected, and can be used, for example, in pneumatic equipment devices.

Known shut-off valve (Patent RU for utility model No. 135755, IPC F16K1 / 02, 2012), comprising a tee-shaped housing, in a pipe normally located to the input and output pipes, a vertical channel is made in which between the input and output channels located respectively in the inlet and outlet nozzles, a saddle is placed that interacts when the valve is closed with a cylindrical cylinder body of variable cross section sealed relative to the body and controlled by a handle. The handle is mounted on the lid, interacting with the internal threaded surface with the counter surface of the pipe, normally located to the inlet and outlet pipes. At the same time, in the bottom of the lid, a movable-rotational locking element is coaxially fixed, a part of a smaller diameter of which is covered by a stopper placed in the groove of the pipe, perpendicular to the axis of the locking element.

The disadvantages of this device are the low efficiency of blocking the flow of the working medium in an emergency, as well as significant dimensions and inconvenience during operation.

The closest in technical essence and the achieved results to the proposed technical solution is a ball valve (RU Patent for the invention No. 2517467, IPC F16K 5/20, F16K 43/00, 2013), consisting of a body with inlet and outlet fittings and two seats having passage openings with spherical surfaces for interacting with a ball locking element overlapping the passage opening, in which a protrusion of the rod enters the groove, while the saddle is spring loaded from the inlet side. The seats are made in the form of sealing elements, and the seat on the inlet side is installed in a movable sealing element made in the form of a sleeve, through which the seats are spring-loaded by means of a disk washer, and a removable duplicating sealing element made in the form of a threaded cup with sealing surface and with a place for installing a removable plug.

The disadvantages of the above analog device are the low efficiency of shutting off the flow of the working medium in an emergency, the low efficiency of connecting and disconnecting it from the device of pneumatic equipment, the low reliability due to the significant range of parts and the complexity of their manufacture, assembly and operation.

The technical result, to which the claimed technical solution is directed, is to increase the operational shutoff of the flow of the working medium and shut off the ball shut-off valve from the pneumatic equipment device, as well as the manufacturability of operation and maintenance.

The technical result is achieved by the fact that the housing is made with an internal cavity, with through radial cylindrical holes, the surface of which is in contact with the fixing elements, and a locking element rigidly fixed from the outside of the stepped side surface. An elastic element is fixed on the housing by means of a movable sleeve with an internal cavity formed by a conical surface of the groove that passes into a cylindrical surface in contact with the fixing elements, which stepwise passes into another cylindrical surface of a larger diameter, as well as with a through groove from the side of the lower end, commensurate with the width of the locking body element. The movable coupling is fixed to the housing by means of a locking ring. A rod is installed in the housing, made with an outlet fitting in the upper part, with an annular groove, the surface of which contacts the locking elements, and with through holes in the lower part that form the inner central channel. An adapter is installed on the inlet side of the housing, made with an outlet fitting and a saddle with a ball locking element that covers the passage opening. On the side of the end surface of the outlet fitting of the adapter, longitudinal grooves are made.

The invention is illustrated by drawings, where:

FIG. 1 is a general view of the ball shut-off valve in the initial position;

FIG. 2 is a general view of the ball shutoff valve in the operating position;

FIG. 3 is a general view of the ball shutoff valve in the closed position;

FIG. 4 - case (increased);

FIG. 5 - stock (increased);

FIG. 6 - movable coupling (increased);

FIG. 7 - through L-groove of the movable coupling with a locking element;

FIG. 8 - through Τ-shaped groove of the movable coupling with a locking element;

FIG. 9 - adapter (increased);

FIG. 10 - rod from the bottom;

FIG. 11 - adapter on the outlet nozzle side.

The ball valve consists of a housing 1 (Fig. 1-4) with an inlet fitting 2 (Fig. 4) and a seat 3 (Fig. 4) having a spherical surface for interaction with a ball locking element 4 (Fig. 1-3), overlapping the passage hole 5 (Fig. 4), passing into the inner cavity of a cylindrical shape. The internal cavity of the housing 1 is made with an internal annular groove 6 (Fig. 4), for example, of a Π-shaped plan view, for installing a sealing ring 7 (Fig. 1-3) of a toroidal shape made of an elastomeric material, such as a rubber compound.

The outer side surface of the housing 1 is cylindrical stepped. At the upper stage, an outer annular groove 8 (Fig. 4) is made to accommodate the retaining ring 9 (Fig. 1-3), and through radial cylindrical holes 10 (Fig. 4) to accommodate the locking elements 11 (Fig. 1-3) in in the form of balls. At the lower stage, the locking element 12 (Figs. 1-3, 7, 8) is rigidly fixed in the form of a cylindrical pin.

In the inner cavity of the housing 1 there is a rod 13 (Figs. 1-3, 5) with an outlet fitting 14 (Figs. 1-3, 5) in the upper part. The middle part of the rod 13 is made of a hexagonal shape (Fig. 10) for screwing the ball valve with a standard wrench into a pneumatic device (not shown conditionally). Under the hexagon on the rod 13, an annular groove 15 (Fig. 5) is made with a spherical surface identical to the surface of the fixing elements 11. The lower part of the rod 13 is made with a conical lateral surface that passes into the spherical surface of the protrusion 16 (Fig. 5, 10). From the side of the conical lateral surface of the lower part of the rod 13, through tangential holes 17 are made (Fig. 5, 10), combined into the inner central channel 18 (Figs. 1-3, 5).

The rod 13 is fixed in the inner cavity of the housing 1 by means of a sealing sealing ring 7, which ensures the tightness of the connection, as well as the locking elements 11, the surface of which is in contact with the spherical surface of the annular groove 15. The end surface of the middle part of the rod 13 is in contact with the upper end surface of the housing 1, and the protrusion 16 of the rod 13 is included in the through hole 5 of the housing 1.

A movable sleeve 19 is fixed on the housing 1 (Figs. 1-3, 6) by means of a locking ring 9 with the possibility of rotation of the rod 13 around its axis. The movable coupling 19 is made in the form of a sleeve with an internal cavity formed by the conical surface of the groove 20 (Fig. 6) from the upper end, passing into the cylindrical surface 21 (Fig. 6), which stepwise passes into the cylindrical surface 22 (Fig. 6) larger diameter, and a through groove 23 (Fig. 6) from the bottom end. The geometry of the through groove can be performed, for example:

- L-shaped (Fig. 7);

- Τ-shaped (Fig. 8).

The movable clutch 19 fixes the elastic element 24 (Fig. 1-3) in the form of a compression spring located on the middle stage of the housing 1, while its stop 25 (Fig. 6) is in contact with the end surface of the elastic element 24, and its cylindrical surface 21 is with the surface of the locking elements 11. The width of the through groove 23 provides for the placement of the locking element 12 of the housing 1, which together represents a bayonet connection, for operatively shutting off the flow of the working medium.

An adapter 26 is fixed in the valve body 1 of the ball shut-off valve from the inlet nozzle 2 side (Figs. 1-3, 9) by means of its outlet nozzle 27 (Fig. 9). The outlet fitting 27 of the adapter 26 is made with a seat 28 (Fig. 9) having a conical surface for interacting with a ball locking element 4 that overlaps the passage opening 29 (Figs. 1-3, 9, 11) of the adapter 26. In the adapter 26 from the side the end surface of the outlet fitting 27 is made of longitudinal symmetrical grooves 30 (Fig. 9, 11), for example, an arched shape for the passage of the working medium. The middle part of the adapter 26 is made of a hexagonal shape (Fig. 11) for the possibility of fixing it with a standard wrench. The lower part of the adapter 26 is made with the outer surface 31 (Fig. 1-3, 9) of the "herringbone" type for fixing in the pipeline of the pneumatic system (not shown conditionally).

The working gap between the protrusion 16 of the rod 13 and the ball locking element 4 is regulated by one or more adjusting rings 32 (Fig. 1-3) mounted on the adapter 26 under the output fitting 27.

The assembly of the ball shut-off valve is as follows.

Install the sealing sealing ring 7 in the inner annular groove 6 of the inner cavity of the housing 1.

Install the rod 13 in the internal cavity of the housing 1.

Fixing elements 11 are placed in the through radial cylindrical holes 10 of the housing 1.

The elastic element 24 is placed on the middle stage of the housing 1.

The movable coupling 19 is fixed on the housing 1 with a locking ring 9.

Lock the locking element 12 on the housing 1, placing it in the through groove 23 of the movable coupling 19.

A ball locking element 4 is placed in the seat 28 of the adapter 26.

Screw the adapter 26 through the outlet fitting 27 into the inlet fitting 2 of the housing 1, adjusting the working gap between the protrusion 16 of the rod 13 and the ball locking element 4 with one or more adjusting rings 32, installing them on the adapter 26 under the outlet fitting 27.

The ball valve is fixed in the device of pneumatic equipment by means of the outlet fitting 14 of the rod 13, and the pneumatic system pipeline - the lower part of the adapter 26.

The operation of the ball shut-off valve is as follows.

If there is pressure in the pipeline of the pneumatic system, the working medium passes through the bore 29 of the adapter 26, moving the ball locking element 4 from the seat 28 of the adapter 26 to the upper position and pushed into the end surface of the protrusion 16 of the rod 13. Longitudinal symmetrical grooves 30 in the adapter 26 are opened for further passage of the working medium into the internal cavity of the housing 1. Next, the working medium through the tangential openings 17 of the rod 13 enters its inner Central channel 18, and then into the pneumatic device Coy equipment.

To quickly shut off the flow of the working medium and disconnect the ball shut-off valve from the pneumatic equipment device, the movable sleeve 19 is locked on the stop element 12 of the housing 1 by axially moving it and turning it to the left or right position of the through groove 23. Inside the ball shut-off valve, the elastic element 24 is compressed. The locking elements 11 come out of the annular groove 15 of the rod 13 and move into the annular groove 20 of the movable coupling 19, excluding their loss. The ball locking element 4, under the influence of the flow of the working medium, moves further upward, presses the protrusion 16 of the rod 13, which leaves the passage opening 5 of the housing 1, and closes the passage passage 5 of the housing 1, in contact with the spherical surface of the seat 3 of the inlet fitting 2 of the housing 1, the passage of the flow of the working medium into the internal cavity of the housing 1. Then, the rod 13 is unscrewed from the device of the pneumatic equipment using a standard wrench. The rod 13, rotating around its axis, does not transmit movement to the housing 1 and further through the adapter 26 to the pneumatic system pipeline, providing an operative shutdown of the ball-locking valve from the pneumatic equipment device.

When a ball valve is connected to another device of pneumatic equipment, operations are performed in the reverse order.

Claims (4)

1. Ball valve, consisting of a housing with an inlet fitting and a seat having a spherical surface, interacting with a ball locking element that overlaps the bore and interacting with the stem protrusion, characterized in that the housing is made with an internal cavity, with through radial cylindrical holes, the surface of which is in contact with the fixing elements, and the locking element, rigidly fixed from the side of the outer stepped side surface, an elastic the element by means of a movable sleeve with an internal cavity formed by a conical surface of the groove passing into a cylindrical surface in contact with the fixing elements, which stepwise passes into another cylindrical surface of a larger diameter, as well as with a through groove from the bottom end, commensurate with the width of the stop element of the housing, this movable coupling is fixed to the housing by means of a locking ring, and a rod is installed in the housing, made with the outlet fitting in the upper part, with to a groove, the surface of which is in contact with the locking elements, and with through holes in the lower part forming the inner central channel, while an adapter is installed on the side of the inlet fitting of the housing, made with an outlet fitting and a seat with a ball locking element that overlaps the passage opening, and with The sides of the end surface of the outlet adapter nipple are provided with longitudinal grooves. 2. Shutoff ball valve according to claim 1, characterized in that the lower part of the stem is made with a conical lateral surface, and the through holes are tangential. 3. Shut-off ball valve according to claim 1, characterized in that the groove in the movable sleeve is L-shaped or T-shaped. 4. Shut-off ball valve according to claim 1, characterized in that the locking elements are made in the form of balls.

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