JPS61296381A - Display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a display device using bubbles.

2. Description of the Related Art In aquariums for breeding ornamental fish such as tropical fish and goldfish, it is common practice to pump air into the aquarium in the form of bubbles using an air pump for the purpose of supplying oxygen to the ornamental fish. However, a display device using bubbles has not yet been developed.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a display device using bubbles.

Structure of the Invention The display device according to the present invention comprises: a transparent tank into which a liquid is placed; a supply pipe for feeding gas into the liquid in the transparent tank from a gas supply source outside the transparent tank; a flow rate control valve provided in the supply pipe; and a valve control device that controls the opening degree of the flow rate control valve. Transparent tanks include those in which the entire tank is transparent, as well as those in which a portion of the tank is transparent.

Example 1 to 4 show a first embodiment of the invention.

1 and 2 show a part of a building in which a display device according to the invention is installed. In the following explanation, the front refers to the indoor glasses where the second fixation occurs, and the rear refers to the right glasses in the figure (outdoor glasses).

The building consists of a base (1) with a substantially inverted U-shaped cross section installed in an annular shape when viewed from above, and a plurality of supports (2) installed at predetermined intervals in the circumferential direction on the top of the base (1). , and a ceiling (3) supported by columns (2).

A rectangular aquarium mounting frame (5) is fitted and fixed in the opening (4) between adjacent columns (2). Frame (5)
has a cross-sectional shape, and has a fixed base (5a) along the inner surface of the peripheral wall of the opening (4), and a fixed base (5a) extending from the front end (indoor edge) of the fixed base (5a) toward the inside of the opening (4). It consists of a protruding aquarium mounting part (5b). A fixed base (5a) is fixed to the peripheral wall of the opening (4) by bolts (6) and nuts (7).

A water tank (8) is fitted into each frame (5) and fixed thereto. The water tank (8) is provided along the entire circumference between a pair of front and rear rectangular transparent glass plates (9) arranged at a predetermined interval and the peripheral edges of both glass plates (9). Closely fixed rectangular frame spacer (1
0). A transparent resin plate may be used instead of the glass plate (9). The water tank (8) is fitted into the frame (5), and after a rectangular frame-shaped holding member (11) is applied to the peripheral edge from the rear, the holding member (11), the peripheral edge of the water tank (8) and the frame (5) The bolt (12) passed through the aquarium mounting part (5b) and the nut (12) screwed into the bolt (12)
13) is attached to the frame (5).

A rectangular frame-shaped panel (14) is provided in front of each opening (4) to hide the frame (5) inside the opening (4) so that the inside of the room cannot be seen.

A spacer (10), a frame (
5) An air supply through hole (15), a water supply through hole (not shown), and a drainage through hole (not shown) are drilled through the earthen wall of the fixed base (5a) and the base (1), respectively. ing. A pair of air supply through holes (15) are formed on the left and right sides of each water tank (8).

The pair of left and right air supply through holes (15) have nozzles (1
6) are respectively inserted and fixed.

The upper end (tip) of the nozzle (16) slightly protrudes from the spacer (10) into the water tank (8). Each nozzle (1
6) are respectively connected to a compressed air source (not shown) via an air supply pipe (17).

Each supply pipe (11) is provided with a flow control valve (i8) (19), respectively. In this example, an electro-pneumatic proportional valve whose opening degree is controlled by a current supplied to a solenoid is used as the flow control valve.

Although not shown in the drawings, a water supply end pipe and a drainage end pipe are inserted and fixed into the water supply through hole and the drainage through hole, respectively. A water supply pipe and a drain pipe are connected to the water supply end pipe and the drainage end pipe, respectively. The water supply pipe and the drain pipe are each provided with an on-off valve.

Water is placed in the water tank (8). Other liquids such as silicone oil may be used instead of water.

The bottom surface of the spacer (10) at the top of the tank and the ceiling (3)
A plurality of ventilation through holes (20) are formed between the spacer (10), the fixed base (5a) of the frame (5), and the ceiling (3).

On the base (1), a pair of left and right illumination lights ((21a) (21b), Fig. ) are attached facing forward and diagonally upward. On the lower surface of the ceiling (3), behind the aquarium (8), each of the above-mentioned lighting lights (
21a) Corresponding to (21b), position D,! Light light ((
22a) (22b) (see FIG. 3) are attached in a diagonally downward forward direction. A speaker (path shown) is attached to the ceiling (3) at a position in front of the water tank (5) in a downward direction.

FIG. 3 shows the electrical configuration of the display device. The solenoid (1) of the electro-pneumatic proportional valve (18) (19)
8a) (19a), illumination lights (21a) (21b) (2
2a) (22b) and an audio device (3) including a speaker.
4) is controlled by CPU (30). C.P.
tJ (30) is equipped with a memory bag @ (31) that stores the program and the like.

Solenoid (18a) for each electro-pneumatic proportional valve (1g) (19)
(19a) are respectively connected to the solenoid drive circuit (32), and each illumination light (21a) (21b) (22a) (
22b) C. Each is connected to the illumination lamp drive circuit (33). Each drive circuit (32) (33) and audio device (34) are connected to the CPU (3) via an output port (35).
0).

The CPU (30) controls the opening of each electro-pneumatic proportional valve (18) (19) and each illumination light (21a) (21b) (22a) (22b) according to a predetermined program.
Controls the illuminance, on/off, the intensity and tone of the sound output from the speakers, etc.

When the electropneumatic proportional valves (18) (19) are opened, air from the compressed air source is ejected from the nozzle (16) in the form of bubbles into the water in the aquarium (8). Air bubbles ejected from the nozzle (16) rise in the water. Electropneumatic proportional valve (180
When the opening degree of 19) changes, the size, number, etc. of the bubbles change. Therefore, when the opening degrees of the electropneumatic proportional valves (18) and (19) are changed over time by the CPU (30), the form of the bubble group in the water tank (8) changes. For this reason, it is possible to arouse the interest of the viewer. Figure 4 shows an example of the form of bubble groups seen indoors.

Moreover, the illumination light (21a) (
21b) (22a) (2zb) and sound-equipment (34
), lighting effects and sound effects are added to the changes in the shape of the bubble group, making it possible to give even more interest to the viewer. In the above example, one aquarium (8) was described, but all the aquariums in the building (8)
) nozzle (16), all lighting lights (21a) (21
b) (22a) (22b) and all speakers
Comprehensive control is possible by P U (30).

FIG. 5 shows a second embodiment of the invention. In this display device, three nozzles (16A) (168016C) having different spout diameters penetrate the bottom of the water tank (8). The upper end of each nozzle (16A) to (16C) is
It extends to a position above the upper end position of the lower horizontal portion of the panel (14). The lower end of each nozzle (168) to (16C) is connected to a compressed air source by an air supply pipe, and each air supply pipe is provided with an electropneumatic proportional valve, as in the first embodiment. It is similar to In this display device, each nozzle (16A) (16B) (1
Since the diameter of the nozzle (6C) is different, the nozzle (16A) (
16B) (16C) can generate bubbles of different sizes. Also in this display device,
Each nozzle (16A) (16C) is controlled by controlling the electropneumatic proportional valve provided for each nozzle (16A) (16B) (16C).
B) It goes without saying that the size, number, etc. of the bubbles ejected from (16C) can be changed.

6 and 7 show a third embodiment of the invention. The body of the water tank (40) consists of a pair of transparent glass plates (40) (41r), which are rectangular in shape when viewed from the front. The front glass plate (41f) is flat on both sides, and curved so as to protrude forward at the part between the two sides. The rear glass plate (41r) is flat on both sides, and is curved so as to protrude rearward between the both sides. The corresponding measuring parts of both glass plates (41r) (41r) are overlapped and tightly fixed.

The lower end opening of the body of the water tank (40) is closed by a bottom wall (42).

The water tank (40) is fitted and fixed, for example, into an opening made in a wall or the like. The bottom wall (42) of the water tank (40) has a large number of nozzles (
16) is penetrated. The lower ends of these nozzles (16) are connected to the main air supply pipe (path shown) by an air supply branch pipe (path shown). The main air supply pipe is connected to a compressed air source (path shown). The main air supply pipe is provided with a flow control valve (path shown).

After filling the water tank (40) with water, when the flow rate control valve is opened, air is ejected from a large number of nozzles (16). Then, the water in the water tank (40) is driven to both sides of the water tank (40) as indicated by the symbol W by the air ejected from the nozzle (16). The vicinity of the joint of both glass plates (40) (41r) in the aquarium (40) is
Since the interval between 1f) and (41r) is narrow, the inner surface of the water (W) driven to both sides becomes wavy. For this reason, it can arouse the excitement of the viewer.

Further, since the horizontal section of the water tank (40) is formed in the shape of a convex lens, there is an effect that the depth of the water tank (40) appears larger than it actually is when viewed from the front.

FIG. 8 shows a fourth embodiment of the invention. A transparent cylindrical body (51) whose upper and lower ends are closed is provided inside the spherical transparent water tank (50). Aquarium (50
) is provided with a ventilation hole (52) at its upper end, and an opening (53) with a diameter approximately equal to the outer diameter of the cylindrical body (51) at its lower end. A plurality of water supply ports (54) are provided around the pores (52) at predetermined intervals in the circumferential direction, and a plurality of drainage ports (55) are provided at predetermined intervals in the circumferential direction around the frontage (53). The water supply port (54) is connected to a water supply source (the illustrated path) via the water supply pipe (54a).
5a) is connected.

The periphery of the bottom of the cylindrical body (51) is connected to the opening (
53) is closely fixed to the peripheral edge of the. Cylindrical body (51)
A plurality of air supply ports (56) are opened at the bottom of the container. A plurality of holes (57) are bored in the peripheral wall of the cylindrical body (51). One end of an air supply branch pipe (56a) is connected to each air supply port (56). The other end of these branch pipes (56a) is the main pipe for air supply (path shown)
The other end of the main air supply pipe is connected to a compressed air source (path shown). The main air supply pipe is provided with a flow control valve (path shown).

Water is constantly supplied into the water tank (50) from the water supply port (54). The supplied water also enters the cylinder (51) through the hole (57). The supplied water is drained from the drain (55)
The water in the tank (50) (the water surface is denoted by S)
), but the amount of water supplied is taken into consideration so that it is always nearly full. In this state, when the flow control valve provided in the main air supply pipe is opened, bubbles are ejected from the air supply port (56). The ejected bubbles go out of the cylinder (51) through the hole (57), rise in the water while causing a swirling motion, etc. according to the water flow, and eventually become air and pass through. It goes out of the aquarium (50) through the stomata (52). It goes without saying that in this display device as well, the size, number, etc. of bubbles ejected from the air supply port (56) can be changed by controlling the flow rate control valve.

FIG. 9 shows a fifth embodiment of the invention. At the bottom of the cylindrical transparent water tank (60), there is a water supply port (5) in the center.
4), and a large number of air supply ports (56) are provided at predetermined intervals in the circumferential direction around the water supply port (54). The peripheral wall of the water tank (60) is provided with a number of drainage ports (55) at predetermined intervals in the circumferential direction at positions slightly below the upper end thereof. The outer surface of the peripheral wall of the water tank (60) has a cross section U that communicates with all the drain ports (55).
A shaped annular duct (61) is tightly fixed.

The water supply port (54) is connected to a water supply source (the illustrated path) via a water supply pipe (54a). The water supply pipe (54a) is provided with an on-off valve (path shown). Annular duct (61)
is connected to a drainage pump (path shown) via a drainage pipe (55a). One end of an air supply branch pipe (56a) is connected to each air supply port (56). The other ends of these branch pipes (56a) are connected to one end of the main air supply pipe (path shown), and the other ends of the main air supply pipe are connected to a compressed air source (path shown). The main air supply pipe is provided with a flow control valve (path shown). Water tank (60)
Water is constantly supplied inside from the water supply port (54).

On the other hand, water is forcibly drained from the drain port (55) by the drain pump. This causes a flow of water within the water tank (60). In this state, when the flow rate control valve is opened, air bubbles are ejected from the air supply port (56) into the water in the water tank (60), and the ejected bubbles move according to the flow of water. By controlling the amount of water discharged by the drainage pump, it is possible to vary the flow of water in the water tank (51). Furthermore, in this display device as well, it goes without saying that the size, number, etc. of the bubbles ejected from the air supply port (56) can be changed by controlling the flow rate control valve.

Further, as shown in FIG. 10, an annular groove (63) may be formed on the inner peripheral surface of the water tank (60). In this case, some of the air bubbles ejected into the water are in the annular groove (63
) and come to stay there.

Furthermore, as shown in FIG. 11, an annular projection (64) may be provided on the inner peripheral surface of the water tank (60).

In this case, a portion of the bubbles ejected into the water will remain above the protrusion (64) due to the action of the water flow.

FIG. 12 shows a sixth embodiment of the invention. The bottom of the cylindrical transparent water tank (60) has a drain hole (
55) are opened, and a large number of air supply ports (56) are provided at predetermined intervals in the circumferential direction around the drain port (55).
is open. At the lower end of the peripheral wall of the water tank (60),
A water supply port (54) is opened.

The water supply port (54) is connected to a water supply source (not shown) via a water supply pipe (54a). One end of a drain pipe (55a) passes through the water tank (60) from below and is tightly fixed to the drain port (55). One end of the drain pipe (55a) protrudes into the water ff1 (60). The water supply pipe (54a) and the drain pipe (55a) are each provided with an on-off valve (not shown). One end of an air supply branch pipe (56a) is connected to each air supply port (56). The other end of these branch pipes (56a) is connected to one end of a main air supply pipe (not shown), and the other end of the main air supply pipe is connected to a compressed air source (not shown). The main air supply pipe is provided with a flow control valve (not shown).

Water is constantly supplied into the water tank (60) from the water supply port (54). The amount of water supplied, the diameter of the drain pipe (55a), etc. are taken into consideration so that the water tank (60) is always nearly full. Since the water in the water tank (60) flows toward the mouth of the drain pipe (55a) located underwater, a flow of water occurs in the water tank (60). In this state, when the flow control valve is opened, air bubbles are ejected into the water from the air supply port (56),
Moreover, the bubbles move according to the flow of water. It goes without saying that in this display device as well, the size, number, etc. of the bubbles ejected from the air supply port (56) can be changed by controlling the flow rate control valve.

The water tank may be of any shape, such as a polygonal pyramid or a polygonal column, in addition to the above-mentioned flat, spherical, and cylindrical shapes.

Functions and Effects of the Invention The display device according to the present invention includes a transparent tank into which a liquid is placed, a supply pipe for feeding gas into the liquid in the transparent tank from a gas supply source outside the transparent tank, and a flow rate control provided in the supply pipe. valves, and flow ■ Valve control m+ that controls the opening degree of the control valve
equipment. When the flow control valve is opened, gas is pumped from the gas source through the supply tube and into the liquid in the transparent tank. For this reason, bubbles are ejected into the liquid from the supply pipe. These bubbles move upward through the liquid in the tank. When the opening degree of the flow control valve changes, the size, number, etc. of bubbles ejected from the supply pipe change. Therefore, when the opening degree of the flow rate control valve is changed over time by the valve control device, the form of the bubble group generated in the tank changes. Therefore, a display device that can arouse the viewer's excitement is realized.

[Brief explanation of drawings]

1 to 4 show a first embodiment of the present invention, FIG. 1 is a partially cutaway front view of a building in which a display device according to the present invention is installed, and FIG. 1 is a cross-sectional view taken along line ■-■, FIG. 3 is a block diagram showing the electrical configuration of the display device, FIG. 4 is a diagram showing an example of the form of bubble groups appearing in the aquarium, and FIG. Second invention
Embodiment 4, FIGS. 6 and 7 show a third embodiment of the present invention, FIG. 6 is a front view of the aquarium, and FIG. 7 is a view corresponding to VI-VI of FIG. Sectional view along the line, No. 8
The figure is a perspective view showing a fourth embodiment of the invention, FIG. 9 is a perspective view showing a fifth embodiment of the invention, and FIG. 10 is a partially enlarged sectional view showing a modification of the water tank of the fifth embodiment. Figure 11 is the fifth
Partially enlarged sectional view showing another modified example of the water tank of the example, 1st
FIG. 2 is a perspective view showing a sixth embodiment of the present invention. (8) (40) (50) (60)...Aquarium, (16
) (16A) to (16C)... nozzle, (17)...
・Air supply pipe, (18) (19)...Electro-pneumatic proportional valve,
(56a)...Air supply branch pipe. Applicant for the above patents: Toshihiko Sekoguchi Fujikin Co., Ltd. Figure 1 Figure 2 Figure 5 Figure 8' @ Figure 10 @ Figure 11 @ Figure 12

Claims (1)

[Scope of Claims] A transparent tank into which a liquid is placed, a supply pipe for feeding gas into the liquid in the transparent tank from a gas supply source outside the transparent tank, a flow rate control valve provided in the supply pipe, and a flow rate control valve. A display device comprising a valve control device that controls the opening of the valve.