RU208449U1 - Mechanical Water Leakage Prevention Device with Actuator for Ball Valve - Google Patents

Abstract

The utility model relates to a water supply system and is designed to automatically close a ball valve in case of a pipeline leak. A mechanical device for preventing water leakage with a drive for a ball valve contains a mechanical sensor and a drive interacting with each other through a cable in an incompressible sheath. A gas spring and a pusher are located in the sensor housing. The paper stopper is placed simultaneously in the slot of the sensor body and in the slot of the pusher, and due to this, it keeps the gas spring in a compressed state. The drive housing contains a drum and two spring steel brackets. The brackets are designed to hold the drive on the crane due to the spring properties. The drum contains two connectors for cable ends and is a connecting link between the crane handle and the drive handle for their simultaneous rotation. The plastic handle of the drive is designed for manual control of the crane. The actuator can be installed on a standard ball valve without making changes to the elements of the water supply system. The sensor is located on the floor under the pipeline. For more timely response, two sensors can be connected to the drive at the same time.

Description

The utility model relates to the water supply system and is designed to automatically close the tap in the event of a pipeline leak.

The closest analogue is known (Golodyaev's water emergency shutdown device, RU 89135 U1), containing a mechanical sensor, on the body of which there is a hole for the stopper with the ability to collapse when water hits it, and inside the body there are a spring and a pusher with a counter hole for the stopper, when In this case, the pusher has a screw clamp for the cable end and a surface for the spring stop, a cable in an incompressible sheath with the function of transferring spring energy from the sensor to the actuator, a mechanical drive in the form of a bracket fixed to the pipeline with a connector for the cable sheath and a crane handle with a connector for the cable end.

The disadvantages of this device are the need to use a volumetric stopper, the presence of space on the pipeline for attaching the drive, an extra load on the connection point of the valve with the pipeline due to the location of the fulcrum on the pipeline, the likelihood of damage to the device and pipeline in case of sudden operation due to the absence of a retarder.

The proposed device contains a leakage sensor, on the plastic casing of which there is a through slot for a flat paper stopper, and inside the casing there are a gas spring with smooth running and a pusher with a counter slot for the stopper across the longitudinal stiffening ribs, while the pusher has a screw clamp for the cable tip and a stop for a gas spring rod, a cable in an incompressible sheath with a coil spring on the drive side for return tension, a drive with a space for a valve in its plastic casing, and a rotatable drum and two spring steel brackets fixed with screws, the drum contains two connectors for cable ends and has an internal shape corresponding to the shape of the crane handle, a plastic drive handle having a common axis and a screw connection with the drum.

The technical result is the possibility of using paper in one layer as a stopper due to the profile surfaces in the slots, more convenient installation of the stopper due to the fact that the slot extends to three sides of the sensor body, simplified installation of the drive without the use of tools due to staples with spring properties for holding it on the crane, increasing the safety of the device and the pipeline due to the smooth running of the gas spring.

For more timely response, two leakage sensors can be connected to the actuator at the same time.

Figure 1 shows the device in the standby mode of the leak (the drive handle is in the open position for the movement of water).

Figure 2 shows the device after operation (the drive handle is in the closed position for the movement of water).

Figure 3 shows an exploded view of the device.

Positions in the figures: paper stopper 1, upper part of the sensor housing 2, an incompressible cable 3, coil spring 4, pusher 5, gas spring 6, lower part of the sensor housing 7, drive handle 8, upper part of the drive housing 9, drum 10, the lower part of the drive housing 11, brackets 12, ball valve 13.

The device works as follows. The user, pressing the pusher into the sensor body, installs a paper stopper into the slot. Then he places the actuator on the tap until the brackets wrap around the valve body and turns the actuator handle to the open position for the movement of water. The sensor is placed on the floor under the pipeline. The paper stopper loses its strength when water gets on it, which leads to the expansion of the gas spring. The spring energy is transmitted through the cable to the drive drum, which, in the next turn, leads to the rotation of the valve handle to the closed position for the movement of water.

Claims (1)

A mechanical device for preventing water leakage with a drive for a ball valve, containing a mechanical sensor, on the body of which there is a hole for a stopper with the ability to be destroyed when water enters it, and inside the body there are a spring and a pusher with a counter hole for the stopper, while the pusher has a screw clamp for the cable end and the surface for the spring stop, a cable in an incompressible sheath with the function of transferring spring energy from the sensor to the actuator, characterized in that it contains a leakage sensor, on the plastic case of which there is a through slot for a flat paper stopper, and inside the case there is a gas spring with smooth running and a pusher with a counter slot for a stopper across the longitudinal stiffening ribs, a cable in an incompressible sheath with a coil spring on the drive side for return tension, a drive in a plastic casing of which there is a space for a crane, as well as a rotatable drum and two staples made of spring steel, fixed with screws, while the drum contains two connectors for cable ends and has an internal shape corresponding to the shape of the crane handle, a plastic drive handle having a common axis and a screw connection with the drum.

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