RU205877U1 - VALVE WITH AUTOMATIC WATER FLOW REGULATION - Google Patents

Abstract

The utility model relates to the field of mechanical engineering and can be used to connect the water supply line to fire extinguishing objects. The technical result is the ability to automatically regulate the water flow depending on the floor of the valve installation. The specified technical result is achieved due to the fact that the declared valve contains a body with an inlet connection with an internal thread and an outlet connection, which communicate with each other through the bypass opening of the saddle, and a locking mechanism located in the body, and the outlet connection is made with an end flange, characterized in that an automatic water flow regulator is inserted inside the outlet cylindrical end, consisting of a collar a flange with additional through holes, which is spring-loaded by a clamping flange having an external thread and screwed into an internal thread of the outlet cylindrical end of the housing.

Description

The utility model relates to the field of mechanical engineering and can be used to connect the water supply line to fire extinguishing facilities.

Various fire valves are known from the prior art, for example, RU115850U, publ .: 10.05.2012; RU70331U, publ .: 20.01.2008; RU177997U, publ .: 03/19/2018, containing a body with inlet and outlet fittings communicating with each other through the bypass opening of the seat, and a locking mechanism located in the body in the form of a screw spindle, at one end of which a flywheel is installed, and at the other end there is a valve for overlap bypass opening, a cover made in the form of a flange with a protrusion located in its upper part. The technical problem of the known solutions is the impossibility of automatic regulation of the water flow rate depending on the floor of the valve installation.

Known solution for the patent CN205806505U, publ .: 2016-12-14, which describes a direct-flow proportional water valve, including a valve body, a control valve and a water flow sensor. The valve body is provided with a valve stem channel, a water inlet pipe and a water outlet equipped with a water flow sensor, the control valve includes a valve body part and a core body part. It also contains an O-ring, which is fixed by a sleeve on the stationary part and abuts against the shoulder. The device also includes a temperature sensor and a Hall sensor. The temperature sensor is located on the valve body and is matched to the valve core seat in the valve body. The technical problem of the analogue is that this design does not comply with GOST R 53278-2009 "Fire equipment. Fire shut-off valves. General technical requirements. Test methods (Reissue)" in the part of the angle between the connecting pipes, which does not allow its use in Russia. So, in the prototype this is an angle of 180 degrees, and according to GOST R 53278-2009, it should be in the range of 90-135 degrees. Also, the analogue does not allow automatic regulation of the water flow depending on the floor of the valve installation. In addition, this device is difficult to manufacture and, accordingly, will have a higher cost, and also has a need to use sensors that themselves require an independent power supply.

The closest analogue is the solution according to the patent RU163355U, publ .: 20.07.2016, which describes a fire valve containing a body 2 with inlet and outlet fittings communicating with each other through the saddle bypass opening, and a locking mechanism in the body in the form of a screw spindle, at one end of which a flywheel is installed, and at the other end there is a spool for closing the bypass opening, a cover made in the form of a flange with a protrusion located in its upper part, characterized in that the outlet fitting in it is made with an end flange and with gripping elements in the form of diametrically lugs located around the circumference with an L-shaped cross-section, while on the inner surface of the outlet fitting there is an annular groove, inside which there is an annular sealing element made of elastic material, providing a bayonet connection with an element of the water supply line, and the said end flange is made with stepped limits tel, providing fixation of the position of the connected element of the water supply line when it is turned. The prototype also does not allow for automatic regulation of the water flow depending on the floor of the valve installation.

The task of the utility model is to eliminate the indicated technical problems of the known solutions.

The technical result is the ability to automatically regulate the water flow depending on the floor of the valve installation.

The specified technical result is achieved due to the fact that the declared valve contains a body with an inlet connection with an internal thread and an outlet connection, which communicate with each other through the bypass opening of the seat, and a locking mechanism located in the body, and the outlet connection is made with an end flange, while an automatic water flow regulator is inserted inside the outlet cylindrical end, consisting of a collar flange with additional through holes, which is spring-loaded by a pressure flange having an external thread and screwed into an internal thread of the outlet cylindrical end of the housing.

Preferably, the hold-down flange has a torus-shaped recess around the center hole so as to form an annular collar around the center hole on which the spring is fitted.

Preferably, the hold-down flange has only one central hole.

Preferably, an annular groove is made on the inner surface of the outlet fitting, inside of which an annular sealing element made of elastic material is located, providing a bayonet connection with an element of the water supply line (hose).

Brief Description of Drawings

FIG. 1 shows the device of the utility model (side view in section).

FIG. 2 shows an example of a collar flange (view in volume).

FIG. 3 shows an example of a collar flange (top view).

FIG. 4 shows an example of a collar flange (side sectional view).

FIG. 5 shows an example of a pressure flange (view in volume).

FIG. 6 shows an example of a pressure flange (top view).

FIG. 7 shows an example of a pressure flange (cross-sectional side view).

FIG. 8 shows an exploded view of an automatic water flow controller.

FIG. 9 shows an example of the operation of an automatic regulator of water flow in the area of the outlet connection at low pressure (view without a spring).

FIG. 10 shows an example of the operation of an automatic water flow regulator in the area of the outlet connection at high pressure (view without a spring).

FIG. 11 shows a view of the valve in volume without an automatic water flow regulator inserted.

FIG. 12 shows a view of the valve in volume with an inserted automatic water flow regulator and an unscrewed outlet nozzle 3.

In the drawings: 1 - housing, 2 - outlet cylindrical end of the housing, 3 - outlet fitting, 4 - collar flange, 5 - clamping flange, 6 - cover, 6.1 - cover projection, 7 - end flange, 7.1 - capture elements, 7.2 - ring sealing element, 8 - screw spindle, 9 - flywheel, 10 - bypass hole, 11 - bypass seat, 12 - spool, 13 - inlet fitting, 14 - central hole of the collar flange, 15 - additional holes in the collar flange, 16 - cylindrical sleeve (collar), 17 - central hole of the pressure flange, 18 - depression of the pressure flange, 19 - spring, 20 - annular collar.

Implementation of the utility model

The valve contains a housing 1 with an inlet 13 and outlet 3 fittings communicating with each other through the bypass opening 10 of the seat 11, and a locking mechanism located in the housing in the form of a screw spindle 8, at one end of which a flywheel 9 is installed, and at the other end a spool 12 is fixed for overlap bypass opening 10, cover 6, made in the form of a flange with a projection 6.1 located in its upper part.

The inlet fitting 13 is made with an internal thread designed 6 for connecting the valve to the water supply (not shown in the drawing). The outlet fitting 3 is made with an end flange 7 and with gripping elements 7.1 in the form of tides diametrically located around the circumference with an L-shaped cross-section. An annular groove is made on the inner surface of the outlet fitting, inside of which there is an annular sealing element 7.2 made of an elastic material, for example, rubber, providing a bayonet connection with an element of the water supply line (hose) (not shown in the drawings). The end flange 7 can be made with stepped stops (not shown in the drawings), ensuring the fixation of the position of the connected element of the water supply line when it is turned. New in the utility model is that (see Fig. 1) an automatic water flow regulator is inserted into the outlet pipe, consisting of a collar flange 4 with additional through holes 15, which is spring-loaded by a pressure flange 5, which has an external thread and is screwed into an internal thread 2.1 (see Fig. 11, Fig. 12) of the outlet cylindrical end 2 of the housing 1, where the cylindrical end 2 itself has an external thread 2.2, onto which the outlet fitting 3 is screwed, made with an internal thread.

This technical solution can be implemented in different ways, one of which is described below, but is not limited to other embodiments of the collar flange 4 and the clamping flange 5 of the automatic regulator shown in FIG. eight.

Example.

Inside the outlet cylindrical end 2, a collar flange 4 (see Fig. 2, Fig. 3, Fig. 4) can be inserted, having a cylindrical sleeve 16 (collar) and through holes 15 located around it along the surface of the collar flange 4. Collar flange 4 is oriented by the cylindrical sleeve 16 towards the outlet fitting 3 and abuts against the saddle of the outlet edge of the housing 1. A spring 19 is put on the cylindrical sleeve 16 at one end. The spring 19 is pressed by the other end by the clamping flange 5 (see Fig. 5, Fig. 6, Fig. 7) having a torus-shaped recess 18 around the central hole 17. The recess 18 forms an annular collar 20 around the central hole 17. This annular collar 20 is fitted with a spring 19 at its other end. The clamping flange 5 has an external thread and is screwed into the internal thread 2.1 of the cylindrical end 2 of the housing 1. In this case, the clamping flange 5 contains only one central hole. The principle of operation of a valve with automatic water flow control is as follows.

When water is supplied (see Fig. 9, where the direction of water flow is shown by arrows) with low pressure, which occurs on high floors of the building, the water pressure does not compress the spring, and the collar flange 4 remains in its initial position compressed by the spring. As a result, the flow of water flows without restriction through the holes 15 of the collar flange 4 and through its central hole 14, then entering through the central hole 17 of the clamping flange 5 into the outlet 3 and then into the fire hose. When water is supplied (see Fig. 10, where the direction of water flow is shown by an arrow) with high pressure, which occurs on the first floors of the building, the water pressure compresses the spring, pressing the collar flange 4 with the collar 16 into the area of the central hole 17 of the pressure flange 5. В As a result, the flow of water flows only through the central hole 14 of the collar flange 4, and the flow of water through the holes 15 of the collar flange 4 is blocked by the collar 16, which deepens into the area of the central hole 17 of the pressure flange 5. Therefore, on those floors of the building where the pressure is high, the water pressure is automatically limited and through the central hole 17 of the clamping flange 5 into the outlet 3 and then into the fire hose, the already adjusted pressure goes.

Fire hydrant valves with flow controllers can be used in internal fire-fighting water supply systems, buildings and structures, in accordance with SNiP 2.04.01-85. The valves are installed on the internal fire-fighting water supply system of the lower floors of multi-storey buildings and are used to start water in the fire hydrant. The flow regulator, depending on the excess pressure created by the water column in the riser, automatically reduces the flow rate of the liquid passing through the valve. This ensures uniform water flow while simultaneously opening valves on different floors.

Claims (4)

1. A valve containing a body with an inlet connection with an internal thread and an outlet connection, which communicate with each other through the bypass opening of the seat, and a locking mechanism located in the housing, and the outlet connection is made with an end flange, characterized in that an automatic water flow regulator, consisting of a collar flange with additional through holes, which is spring-loaded by a clamping flange having an external thread and screwed into an internal thread of the outlet cylindrical end of the body. 2. The valve according to claim. 1, characterized in that the clamping flange has a torus-shaped recess, made around the central hole so that it forms an annular collar around the central hole, on which the spring is fitted. 3. A valve according to claim 1, characterized in that the clamping flange contains only one central hole. 4. The valve according to claim 1, characterized in that an annular groove is made on the inner surface of the outlet fitting, inside of which there is an annular sealing element made of elastic material, providing a bayonet connection with an element of the water supply line (hose).

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