JP2561633B2 - Noise suppression device for inflow water such as water tanks - Google Patents

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, The upper part is a little smaller than the sound-absorbing outer pipe to make an inflow part, a conical water receiving plate is installed above the inside of the water tank body, an inflow hole is formed on the outer periphery, and a large number of thin tube groups are provided immediately below it, and the lower part A spiral water guide plate is provided in the water intake pipe, and the water guide pipe is introduced from the upper part of the water tank main body to the inside, is connected to the inflow part of the sound deadening outer pipe, and the air inflow hole is provided at the upper part of the sound deadening outer pipe. With such a structure, the water supply introduced from the inflow part is first dropped on the conical water receiving plate to be dispersed on the inner circumference of the sound-deadening outer pipe, and then dispersed on a large number of thin pipe groups below it. Lower it and drop it on the spiral water guide plate provided under the sound-muffling outer pipe to make horizontal water supply while swirling to reduce noise pollution. It is designed to supply water gently so that it will not come out.

[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
This is an inflow part having a small diameter at the upper part of the sound deadening outer tube 2. Reference numeral 6 is a conical water receiving plate attached above the inside of the sound deadening outer tube 2, and reference numeral 7 is an inflow hole provided on the outer periphery thereof. 8 is
A group of thin tubes provided directly below the conical water receiving plate 6, the thin tubes 8 are provided with through holes 9 at appropriate intervals. Reference numeral 10 denotes a spiral water guide plate provided below the group of thin tubes 8. 12 is
A water conduit introduced into the upper part (ceiling part) or the side part of the water tank body 1 and is connected to the inflow part 5 via a connecting pipe 13. Reference numeral 14 is a base, 15 is a receiving frame of the water tank body 1 on the base 14, 16 is an overflow port, 17 is a water outlet, and 18 is a drainage port.

[0006]

Second Embodiment Next, the second embodiment has a structure in which an air inflow hole 11 is provided in an upper portion of the sound deadening outer tube 2 of the first embodiment.

[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,
By the water conduit 12, water is supplied from the inflow pipe 5 which is the upper part of the sound deadening outer pipe 2 to the conical water receiving plate 6 provided at the upper part of the sound deadening outer pipe 2, and then dispersed on the inner circumference of the sound deadening outer pipe 2. It collides with the inner surface, disperses and flows in a group of thin tubes 8 below it, descends the group of thin tubes 8 and drops to the spiral water guide plate 10 below and swirls to drop water on the water surface.

[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 introduction pipe 12. The introduced water is first introduced into the inflow pipe 5. Further, water is supplied onto the conical water receiving plate 6 at the upper part of the sound deadening outer pipe 2, and then dispersed on the inner circumference of the sound deadening outer pipe 2 to collide with the inner surface, first muting, and then the thin pipes 8 group thereunder are dispersed. , The sound is often silenced while flowing down the narrow pipes 8, and the inflow water descending the group of the narrow pipes 8 falls to the spiral water guiding plate 10 therebelow and is swirled to fall on the water surface. It is possible to minimize the generation of noise due to noise. In addition, water is not generated on the flood surface and water is supplied quietly. 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. By providing a large number of through holes 9 in the thin tube 8, the inflow water is refracted well between the adjacent thin tubes 8 so that the sound can be silenced further.

[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.

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

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

FIG. 5 is a vertical sectional side view of a thin tube.

[Explanation of symbols]

 1 Water Tank Main Body 2 Sound Absorbing Outer Pipe 3 Rapper-like Portion 5 Inflow Portion 6 Conical Water Receiving Plate 7 Inflow Hole 8 Capillary Pipe 10 Spiral Water Transfer Plate 11 Air Inflow Hole 12 Water Transfer Pipe

Claims (2)

(57) [Claims] 1. A sound deadening outer pipe is provided inside the water tank main body in a vertical direction, and an upper portion thereof is made a diameter slightly smaller than the sound deadening outer pipe to serve as an inflow portion, and a conical water receiving plate is attached above the inside of the water tank main body. An inflow hole is formed on the outer periphery, a large number of thin tube groups are provided immediately below it, and a spiral water guide plate is provided below it, and the water guide tube is
A noise prevention device for inflow water of a water storage tank or the like, which is introduced from the upper part of the water storage tank main body to the inside and is connected to the inflow portion of the sound deadening outer pipe. 2. A noise prevention device for inflow water such as a water tank, wherein an air inflow hole is provided in an upper portion of the sound deadening outer pipe according to claim 1.