JPS5926728B2 - water supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that the suction port 3 of the siphon tube 1 having a substantially inverted U shape is submerged in water in a water tank 2 so that the top of the siphon tube 1 is located above the water surface. 1 outlet 4
is connected to a suction part such as a pump, and the siphon tube 1
A water supply device for a simple flush toilet device characterized in that a cylindrical portion 5 whose upper surface is closed is extended upward from the top of the cylindrical portion 5, and a small hole 6 is formed in the cylindrical portion 5 to open to the atmosphere. Its purpose is to prevent water from being continuously supplied from the outlet due to the difference in water level, and also to prevent small holes from being clogged with dirt contained in the water. To provide a water supply device for toilet equipment.

The present invention will be explained in detail below with reference to Examples.

A in the figure is a toilet unit, which is formed by attaching a water tank 2 to the front part of the toilet bowl 7. A water pipe is connected to the water tank 2, and the toilet unit automatically responds to changes in the water level of the water tank 2. There is a water tap 8 that can be opened and closed automatically.

Also, inside the water tank 2, there is provided an inverted U-shaped siphon pipe 1 whose suction port 3 side is submerged in water and whose top part is always located above the water surface at the highest water level, and the siphon pipe 1 is located on the discharge port side. The lower end thereof passes through the lower part of the water tank 2 and is connected to the upper end of a water pipe body 10 connected to the suction port of the diaphragm pump 9.

A mesh-like strainer 1 is installed at the suction port 3 of the siphon tube 1.
1 is attached to the siphon tube 1, and a cylindrical portion 5 with a closed top surface extends upward from the top of the siphon tube 1. A small hole 6 is bored in the thin closed surface portion 12 of the cylindrical portion 5. A lid 14 having a ventilation path 13 is attached to the upper part of the shaped part 5.

If the closing surface portion 12 is thin in this way, the small holes 6 will be less likely to be clogged, and if the lid body 14 is attached, they will be less likely to be clogged by foreign debris.

Further, FIG. 3 shows another embodiment described in which a small hole 6 is bored in the thick closed surface portion 12 of the cylindrical portion 5.

Further, in FIG. 4, a small hole 6 is bored in the side circumference of the cylindrical portion 5, and in FIG. 5, a small hole 6 is bored in the tip of the inverted U-shaped cylindrical portion 5.

B in the figure is a support unit, and this support unit B is the valve 15.
The diaphragm pump 9, the valve operating pedal 18, and the diaphragm operating pedal 19 are provided on a support plate 17 having a droplet 16 provided with an opening.

The valve 15 is operated by stepping on a valve operation pedal 18 to open the drop port 16.

When a diaphragm operation pedal 19 is stepped on, the diaphragm pump 9 is deformed, pressure is applied to the water in the diaphragm pump 9, and water is discharged from a water discharge nozzle 21 that opens into the upper inner surface of the toilet bowl 7 through a fountain pipe 20. It is.

A check valve 22 is provided at the suction port connecting the diaphragm pump 9 and the water pipe body 10, and the check valve 22 closes the suction port of the diaphragm pump 9 when the diaphragm pump 9 is in operation. Water in the diaphragm pump 9 is prevented from flowing back into the water pipe body 10.

The valve operation pedal 18 and the diaphragm operation pedal 19 are overlapping pedals that work in conjunction with the valve operation pedal 18. When the overlapping pedal is stepped on, the diaphragm operation pedal 19 and the valve operation pedal 18 can be operated simultaneously, and the diaphragm pump 9 pumps water into the toilet bowl T. At the same time, the valve 15 is operated to open the drop port 16.

Here, when the diaphragm operation pedal 19 is stepped on, the diaphragm pump 9 is pressed through the link mechanism, and the water in the diaphragm pump 9 is sent through the water fountain pipe 20 to the water discharge nozzle 21.
It squirts into the toilet bowl I.

At this time, when the diaphragm pump 9 returns to its original state due to the force of the spring 23, a suction force acts on the check valve 22, and the check valve 22 opens and drains the water in the water tank 2 into the siphon pipe 1.
, into the diaphragm pump 9 through the water pipe body 10.

At this time, air is sucked into the siphon tube 1 through a small hole 6 bored in the cylindrical portion 5 at the top of the siphon tube 1, but if the diameter of the small hole 6 is made sufficiently small, the amount of air that can be sucked is The amount of water sucked is larger than the amount of water (therefore, the amount of water supplied is ensured appropriately).

Therefore, the amount of water supplied can be adjusted by adjusting the diameter of the small hole 6.

When the diaphragm pump 9 returns to its original state and the suction force disappears, air accumulates in the top of the siphon tube 1, cutting off the water tank 2 and the water discharge nozzle 21.

In the conventional water supply device for a simple flush toilet device, as shown in Fig. 6, a small hole 6 is directly drilled at the top of the siphon tube 1. Therefore, the small hole is easily exposed to dirt in the water flowing inside the siphon tube. There was a risk that it would become clogged.

In the present invention, the inlet of a substantially inverted U-shaped siphon tube is submerged in water in a water tank such that the top of the siphon tube is located above the water surface, and the outlet of the siphon tube is communicated with a suction part such as a pump. In addition, there is a small hole near the top of the siphon tube that opens to the atmosphere, so when the suction part such as a pump is not driven or the suction part malfunctions, water will flow to the discharge port side due to the water level difference. Even if you try to do so, air will flow into the upper part of the siphon tube from the small hole, and the difference in water level will prevent water from flowing. Since a small hole is drilled in the siphon pipe, the water flowing inside the siphon pipe does not touch the small hole, and there is no risk of the small hole becoming clogged with debris in the water, and the small hole will not be blocked by freezing. There is no risk of this happening.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. 2 is a sectional view of the siphon tube of the same, and Figs. 3, 4, and 5 are of other embodiments of the cylindrical part of the above. 6 is a sectional view of a conventional example, in which 1 is a siphon tube, 2 is a water tank, 3 is an inlet, 4 is a discharge port, 5 is a cylindrical portion, and 6 is a small hole.

Claims (1)

[Claims] 1. Submerge the inlet of the approximately inverted U-shaped siphon tube in water in a water tank such that the top of the siphon tube is located above the water surface, and communicate the discharge port of the siphon tube with a suction part such as a pump, A water supply device for a simple flush toilet device, characterized in that a cylindrical portion with an upper surface closed extends upward from the top of a siphon tube, and a small hole is bored in the cylindrical portion to open to the atmosphere.