JPS6032229Y2 - Freeze prevention device in flush toilets - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an antifreeze device for flush toilets.

In cold regions, flush toilets have a system in which a small amount of water constantly flows into the water tank, and the excess water is allowed to overflow into the toilet bowl, causing the water to flow and prevent freezing. There is.

However, this level is still insufficient depending on the location.

Therefore, the present invention attempts to sufficiently prevent freezing by automatically replenishing the water stored in the water tank from time to time.

The illustrated embodiment will be described below.

In the figure, 1 is a water tank of a flush toilet, 2 is a drainage pipe connected to the bottom of the water tank, 3 is an overflow pipe that stands at an appropriate height inside the water tank and is connected to the drainage pipe 2, and 4 is a drain valve installed in the water tank so as to close the mouth of the drain pipe 2. Although not shown, the drain valve is pulled up and opened via a chain by a lever installed in the water tank. Accordingly, the water stored in the water tank 1 flows to the drainage pipe 2, and
Drains into the toilet bowl and automatically closes again after draining.

Further, although not shown, the water tank is equipped with a water supply conduit, an automatic water supply valve, etc. that stops the water supplied from the water supply conduit at a certain level, and the above is the same as the conventional one.

A frame body 5 is provided to be placed inside the ice tank 1, and a plurality of screws 6 are screwed into the frame body 5, and by tightening these screws 6, the inner surface of the water tank is tightened. The frame body 5 is positioned at an appropriate position within the water tank by extending the frame body 5 upward.

On the frame 5, a support 7 is erected at a suitable position, a stacking rod 8 is pivoted horizontally at the tip of the support 9, and a float 10 is fixed to the tip a of the long side of the rod. A hanging ring 11 is fixed to the rack, a chain 12 is hung from the hanging ring and linked to the drain valve 4, and a cap-shaped slide 13 is fixed to the rear end C of the stack rod on the short side.

Further, an L-shaped arm 14 is provided protruding from the vicinity of the column 7 of the frame 5 in correspondence with the rear end C of the stacking rod 8, and a spring plate 16 is provided protruding from the end of the arm via a hinge 15. The tip of the spring plate faces directly below the rear end C of the stacking rod 8, and a stopper 17 that prevents the spring plate from rotating downward is fixed to the arm 14 near the hinge 15.

The water tank 1 is further provided with a low-temperature opening valve 18 in place, which leads to a water supply conduit (not shown) and automatically trickles water into the water tank at low temperatures.

The low-temperature checkpoint valve has, for example, a built-in wax type thermoelement, and is configured so that the valve opens slightly by the action of the thermoelement when the water temperature reaches around 0°C.

With the above configuration, when the water temperature is at a low temperature of around 0° C. or lower, the low-temperature checkpoint valve 18 opens and the amount of water that is already stored in the water tank 1 is further increased little by little.

As a result, a lifting force is generated on the float 10, which causes the spring plate 16 to
In other words, when the water level exceeds a predetermined value, the spring plate 16 bends and disengages, the horizontal rod 8 rotates, and the force causes the water to drain through the chain 12. valve 4
is pulled up, opened, and the stored water is discharged into the drainage pipe 2: With this drainage, the horizontal rod 8 rotates back under its own weight, and at this time, since the spring plate 16 rotates on the hinge 15, the rear end of the stacking rod C passes over the spring plate 16 without resistance and returns to its original position, and the drain valve 4 descends and closes again to obtain a normal water supply.

Then, the above operation is repeated during the low temperature.

In addition, to prevent the horizontal rod 8 from rotating more than necessary when draining water,
It is preferable that the support column 7 is provided with a rotation regulating means.

According to the present invention, it is possible to occasionally obtain automatic drainage at low temperatures, so that a large amount of water sometimes occurs not only in the water tank 1 but also in the drain pipe 2, overflow pipe 3, toilet bowl, and drain pipe. It can prevent freezing within those systems, and in the unlikely event that
Even if a small amount of freezing occurs, the force of the flowing water can be used to forcibly wash it away, and it will not become unusable due to freezing.

In addition, it has a simple structure, is easy to manufacture, can be easily installed in various types of ready-made water tanks, and can be easily adjusted, which is of great practical benefit.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a cutaway side view and FIG. 2 being a plan view. 1...Water tank, 2...Drainage pipe, 3
...Overflow pipe, 4...Drain valve, 5...
... Frame body, 6 ... Screw, 8 ... Horizontal rod, 10 ... Float, 2 ... Chain, 14 ...
...Arm, 15...Hinge, 16...
...Spring plate.

Claims (1)

[Scope of utility model registration request] In a flush toilet in which the water tank 1 is appropriately equipped with a low-temperature opening valve 18 that supplies water little by little into the stored water tank 1 at low temperatures, an interior frame 5 is provided inside the water tank 1, and the The frame body is equipped with a stacking rod 8 with a float 10 that rotates with the water level increased by the water supply at low temperature, and
A spring plate 16 that locks the pile rod 8 until the water level exceeds a predetermined value is attached to the frame so that it can escape backwards, and the pile rod 8 is provided in the water tank. Drain valve 4
An antifreeze device for a flush toilet, characterized in that it is mechanically linked to the antifreeze device.