JPH0893006A - Noise preventive device for water flowing into storage tank, etc. - Google Patents

Abstract

PURPOSE: To allow water to calmly flow into a storage tank without generating noisee and make the water supply stably without causing the surface level to move up and down. CONSTITUTION: In the body 1 of a water storage tank a silencing outer pipe 2 is furnished in the vertical positioning, and a water inlet pipe 5 is inserted into the upper part of the outer pipe 2 while a spiral water-introducing plate 6 is installed inside the inlet pipe 5. Also below the inside of the outer pipe 2 a lower water-introducing plate 7 in a spiral shape is provided, and the inlet pipe 5 is connected with a water-introduce pipe 8 intruded into the inside from the upper part of the tank body 1, and water supply is made horizontally from the lower part of the outer pipe 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention allows inflow water to flow into a water tank installed in a school, a condominium, an apartment or the like quietly without relatively moving the water level up and down. The present invention relates to a noise prevention device for inflow water such as a water tank.

[0002]

2. Description of the Related Art In a conventional water storage tank, the stored water level is set to an upper limit water level and a lower limit water level by mechanical or electrical sensing such as a float valve.
If the water in the water tank is not used, the water level in the water tank is stopped at the upper limit. When the water level drops below the lower water level due to the use of water, the on-off valve of the inlet pipe opens, water is automatically supplied into the water tank, and when the water level rises to the upper water level,
There is a structure in which the on-off valve of the introduction pipe is automatically closed to stop the water supply and maintain a constant water level.

[0003]

However, in the above-mentioned water storage tank, since the water supply from the introduction pipe has a large drop up to the lower limit, it violently collides with the lower limit water level and produces a large noise. It was very annoying and, at the same time, the water level went up and down violently, so it was difficult to stop water supply reliably.

[0004]

Therefore, the present invention has been proposed in order to eliminate the above-mentioned inconvenience, and its structure is to provide a sound-muffling outer pipe in the vertical direction inside the water tank body, A water inlet pipe with a diameter slightly smaller than that of the sound deadening outer pipe is provided in the upper part, and a spiral water guide plate is formed inside the sound deadening outer pipe, and a lower spiral water guide plate is also provided below the sound deadening outer pipe. It is connected to a water conduit introduced from the upper part of the tank body, and an air inflow path is provided between the upper part of the sound deadening outer pipe and the water intake pipe. With such a configuration, the water supply introduced from the water guide pipe is swirled to collide with the sound deadening outer pipe to drop it while buffering it, reducing the noise of the water supply, reducing noise pollution, and dropping. The supplied water is swirled again so that the water surface is gently supplied so as not to give an impact such as vertical movement.

[0005]

First Embodiment Next, a first embodiment will be described with reference to the drawings. 1
Is a water tank main body, 2 is a sound absorbing outer pipe provided in the vertical direction inside the water tank main body 1, and a lower part is formed in the trumpet-shaped portion 3. The sound deadening outer tube 2 is fixed to the side portion of the water tank main body 1 by the support band 4, and the lower end thereof is opened above the bottom portion of the water tank main body 1. 5 is
The water inlet pipe provided in the upper portion of the sound deadening outer pipe 2 has a diameter slightly smaller than that of the sound deadening outer pipe 2, a spiral water guide plate 6 is provided therein, and the upper portion thereof has a narrow diameter. Reference numeral 7 denotes a lower spiral water guide plate provided below the sound deadening outer pipe 2. 8 is
It is a water conduit introduced into the upper part or the side of the water tank body 1, and is connected to the water inlet pipe 5 via a connecting pipe 9.
11 is a base, 12 is a receiving frame of the water storage body 1 on the base 11,
13 is an overflow port, 14 is a water outlet, and 15 is a drain port.

[0006]

Second Embodiment Next, in the second embodiment, an air inflow path 10 is formed by providing a gap or an air hole between the upper portion of the sound deadening outer pipe 2 of the first embodiment and the water inlet pipe 5. It is configured.

[0007]

Since the present invention has the above-described structure, the water level inside the water tank is maintained at a constant water level by operating the opening and closing of the water supply valve by a mechanical or electrical device. When the water in the water tank is used and the water level drops below the lower water level,
The water guide pipe 8 guides water into the upper spiral water guide plate 6 of the water inlet pipe 5 provided on the upper portion of the sound deadening outer pipe 2, and is swirled immediately in a spiral shape to drop while turning inside the sound deadening outer pipe 2. The water is passed through the lower spiral water guide plate 7 and swirled again to allow water to fall.

[0008]

As described above, according to the present invention, when the water in the water storage tank is used and the water level reaches the lower limit, the water is automatically supplied from the inlet pipe 8. The spiral water guide plate 6 causes the water to flow in a spiral direction to enter the sound-absorbing outer tube 2 in an oblique direction, and the water is dropped while swirling while mitigating the impact, so that noise caused by water supply is minimized. Is what you can do. Further, the introduced water that has swirled and dropped on the inner surface of the sound deadening outer tube 2 is swirled again by the lower spiral water guide plate 7 and spirally drops, so that waves are not generated on the overflow surface quietly. Supply water. Therefore, the present invention has the effects of preventing the occurrence of noise of falling water as much as possible, and at the same time, since the vertical movement of the overflow surface is small, the water supply valve is operated reliably and the water supply is stopped reliably.

[Brief description of drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a partially longitudinal side view of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG.

[Explanation of symbols] 1 water tank main body 2 sound-deadening outer pipe 3 lapping portion 5 water inlet pipe 6 spiral water guiding plate 7 lower spiral water guiding plate 8 water guiding pipe 10 air inflow path

Claims (2)

[Claims] 1. A sound deadening outer pipe is provided in an up-down direction inside a water tank main body, and a water inlet pipe having a diameter slightly smaller than that of the sound deadening outer pipe is provided in an upper portion thereof, and a spiral water guiding plate is formed inside the sound deadening outer pipe to make sound deadening A noise suppressing device for inflow water of a water storage tank or the like characterized in that a lower spiral water guiding plate is also provided below the inside of the outer pipe, and the water inlet pipe is connected to the water guiding pipe introduced from the upper part of the water reservoir main body. . 2. A noise suppressing device for an inflow water such as a water tank, wherein an air inflow path is provided between an upper portion of the sound deadening outer pipe according to claim 1 and the water inflow pipe.