SU984458A1 - For water feed into washing machine - Google Patents

Description

(54) WATER SUPPLY SYSTEM TO WASHING MACHINE

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FIELD OF THE INVENTION The invention relates to the food industry, in particular, to devices for supplying water to washers.

A device for supplying water to washers is known, which contains a pipeline for supplying water and a float valve for blocking the flow of water in the opposite direction from the machine to the pipeline. The washing chamber is connected to the pipeline for. supplying hot or cold water. The presence of a valve prevents food waste from entering the water supply system when vacuum 1 occurs in it: However, the known device does not automatically supply water to the machine in the absence of hot water or a decrease in pressure in the line.

The closest to the technical essence of the present invention is a system for supplying water to washing machines, comprising a pipeline connected to a hot water main, a device for blocking the flow of water in the opposite direction to an inlet fitting connected to the pipeline and an outlet fitting to connecting to a washer 2

The disadvantage of this device is the unreliability of water supply at low pressure in the water supply network.

The purpose of the invention is to increase the reliability of the water supply with decreasing pressure in the water supply network.

This goal is achieved in that the water supply system to the washer, co, j. holding the pipeline connected to the hot water main, the device for blocking the flow of water in the opposite direction to the inlet fitting connected to the pipeline and the output fitting to be connected to the washing machine is provided with

15 with an additional pipe connected to the cold water main, and when, the method for blocking is made in the form of a cylindrical valve with spring-loaded pistons, one of which is mounted on the stem freely, and provided with an additional inlet fitting for connection to the additional pipeline, while the inlet cavity of the main pipeline spool is larger than the additional cross-sectional area.

FIG. 1 shows the water supply system in the washer; in fig. 2 - locking device, in section.

The water supply system has a pipeline 1 connected to the hot water pipeline 2, a device 3 for blocking the flow of water in the opposite direction to the inlet nozzle 4 connected to the pipe 1 and the outlet nozzle 5 for connecting to the pipe 6 and through the inlet valve 7 - c a washing machine 8, an additional pipeline 9 connected to the cold water main 10, and the blocking device 3 is made in the form of a cylindrical slide, 11 with spring-loaded pistons 12 and 13, the piston 12 being mounted on the rod freely and providing Additional inlet fitting 14 for connection to additional pipeline 9, while the cross-sectional area of the inlet cavity of the spool of the main pipeline 15 is larger than the cross-sectional area of the additional 16.

The washing machine is permanently connected to the hot and cold water supply network.

The system works as follows.

At normal or reduced to a certain level of water pressure in the hot water network, due to the larger cross-sectional area of the inlet cavity of the spool 16 of the main pipeline and the displacement of the piston 12, hot water flows into the washing machine. In the absence of water pressure in the main piping, cold water flows into the washer through a preheater (not shown).

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In both cases, the reverse suction of the loaded water from the washing chamber of the machine 1 to the water supply network with the inlet valve 7 open is excluded.

The invention makes it possible to increase the reliability of the water supply with decreasing pressure in the water supply network, which ensures a continuous automatic washing cycle.

Claims (2)

1.Patent of England. 1462952, cl. A 47 L 15/42, 1977. 2. The patent of Germany N ° 2544450, kl.A 47 L 15/42, 1980 (prototype). P ./ four / // Fg / g 2