JPS597435Y2 - 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 overflows into the toilet bowl to keep the water flowing and prevent it from 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 an exhaust 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 drain pipe 2, 4 is a drain valve installed in the water tank to close the mouth of the drain pipe 2. Although not shown, the drain valve is opened by being pulled up via a chain by a lever installed in the water tank. Accordingly, the water stored in the water tank 1 is drained to the drain conduit 2 and then to the toilet bowl, which is automatically closed again after draining.

Although not shown, the water tank is equipped with a water supply pipe and an automatic water supply valve that stops the water supplied from the water supply pipe at a certain level. do not have.

Then, a frame body 5 is provided to be placed inside the water tank 2, and a plurality of screws 6 are screwed into the frame body 5, and these screws 6 are screwed together. By tightening, the frame body 5 is pushed toward the inner surface of the water tank, and the frame body 5 is positioned at an appropriate position within the water tank.

The frame body 5 has struts 7 and 8 erected at one end and in the middle, the strut 7 at the one end is made a little higher, and a rod-shaped arm 9 is pivotally attached to the tip of the strut 7. The first float 11 is fixed to.

Furthermore, a locking piece 12 is pivotally mounted 13 at the tip of the midway support column 8 so as to intersect with the horizontal arm 9.

The locking piece 12 consists of an upright acting part 14 and a horizontal arm part 15, and the acting part 14 is provided with a vertical guide hole 16 which is an elongated circular arc hole. It is arched back and slightly tilted toward the arm, and an engagement notch 17 is provided at the lower end on the side opposite to the arm, and the arm 9 is movably inserted into the guide hole 16, so that the arm 15 is moved by its own weight. When the arm 9 is rotated downward, the lowered arm 9 engages with the engagement notch 17.

Additionally, a small second wire is attached to the tip of the arm portion 15 via the chain 18.
A float 19 is connected to the float 19 so that when the water level in the water tank 1 rises above normal, the locking piece 12 rotates in the direction of raising the arm 15 via the chain 18 as it rises with it. I have to.

The arm 9 has a hanging tool 20 fixed in the middle, a chain 21 is hung from it, and the lower end of the chain 21 is linked to the drain valve 4, and when the arm 9 rotates upward, the drain valve 4 is pulled up.
I try to keep it open.

In the water tank 1, there is a low temperature opening valve 22 in place which leads to a water supply conduit (not shown) and automatically supplies water into the water tank little by little at low temperatures.

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

Because of the above precaution, when the water temperature is low around 0° C. or lower, the low temperature opening valve 22 opens and water is further supplied little by little into the water tank 1 where water is already stored.

Due to the increase in water supply, the first and second floats 11.1
A lifting force is generated on the second float 9, but first the second float 19 rises, and the retaining piece 12 is rotated via the chain 18.

When this rotation and the increase in water reach a predetermined value, the arm 9 of the first float 11 comes off from the engagement notch 17, and the buoyancy of the first float 11 causes it to rise rapidly inside the guide hole 16. As a result, the drain valve 4 is pulled up via the chain 12 and opened.

With this opening, the water stored in the water tank 1 is discharged to the drain conduit 2.

At the same time, the arm 9 and the locking piece 12 are returned and lowered by their own weight, and the arm 9 is locked again in the locking notch 17, and the discharge valve 4 is lowered and closed again to obtain a normal water supply.

Then, when the temperature is low, the above operation is repeated during that time.

According to the present invention, automatic drainage sometimes occurs at low temperatures, so
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 is possible to prevent freezing within these systems, and even if freezing occurs, it can be forcibly washed away by the force of the flowing water, so that it will not become unusable due to freezing.

Furthermore, since the locking piece 12 is used and the arm 9 is movably inserted into the guide hole 16 of a certain shape, the arm 9 and the locking piece 1 are connected to each other.
2 has a restricted rotation range, does not cause unreasonable movement or damage, and is simple in structure and manufacture.
is provided to lock the arm 9, so the locking and releasing operations are reliable, and the only adjustment required is the height adjustment of the second float 19.

It can be easily installed inside a ready-made water tank, making it extremely convenient and useful.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a cutaway front view, FIG. 2 is a plan view, and FIG. 3 is a cutaway side view. 1...Water tank, 2...Drainage pipe, 3
...Overflow pipe, 4...Drain valve, 5...
... Frame body, 6 ... Screw 9 ... Arm, 11 ... First float, 12 ... Locking piece, 16 ... ... Guide hole, 17 ... Notch for locking, 19 ... Second float.

Claims (1)

[Scope of utility model registration request] In a flush toilet designed to supply water little by little into a stored water tank 1 at low temperatures, a frame body 5 is provided which is internally fixed in the water tank 1, and the frame body 5 has a first float 11 at its tip. The horizontal arm 9 is pivotally mounted 10, and
A locking piece 12 is pivotally mounted 13 across the arm 9, and the locking piece 12 is provided with a vertical guide hole 16 through which the arm 9 can be vertically movably inserted. A locking notch 17 is attached to automatically lock the arm 9 in position by its own rotation, and the locking piece 12 is provided with a locking notch 17 when the amount of water stored in the water tank 1 exceeds a normal value. The second float 19 is linked to obtain the rotation for releasing the lock, and the arm 9
is mechanically linked to a drain valve 4 so that water in a water tank 1 is opened and drained by upward rotation of the antifreeze device for a flush toilet.