JPH0719257Y2 - Water tank water supply - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a water supply device used in an aquarium for ornamental use or fish farming.

<Prior Art> As is well known, in order to keep the water inside the tank always clean,
A filtering device is provided on the upper part or the side part and the water in the water tank is pumped up, and the wash water that has passed through the filtering device is supplied into the water tank from the upper part of the water tank through the water supply pipe. That is,
In the conventional water tank, the water supply pipe of the filtering device faces the water tank and opens on the water surface or in the water to supply the water to the water tank. Therefore, the water in the aquarium is vigorously stirred by the supplied water, and the bottom gravel laid on the bottom of the aquarium flows,
Water plants planted in the aquarium may float up.

Therefore, wash water is supplied while being diffused horizontally,
An aquarium for ornamental fish that prevents the flow of bottom gravel and the rise of aquatic plants has been proposed by Japanese Utility Model Publication No. 64-28866.

<Problems to be Solved by the Invention> However, even in the conventional improved aquarium for ornamental fish, water flow still occurs. Therefore, when the fish to be raised are small, they may be lost and washed away by this water flow, and in extreme cases, they may turn their eyes or die. Further, in the case of a conventional general aquarium, if there are many fish to be reared, oxygen shortage may occur.

<Means for Solving the Problems> The present invention has been proposed in view of the above, and a plurality of passage portions are provided on at least a side surface of a cylindrical body having an opening at an upper end,
The cylinder is arranged in the water tank so that the opening is located below the water supply pipe for supplying purified water into the water tank, and the water flowing down from the water supply pipe is introduced from the air gap. Along with this, it is introduced into the cylindrical body and is supplied into the water tank together with air bubbles through the passage portion.

<Operation> The supplied water is introduced into the cylinder together with the air, and the plurality of passage portions provided in the cylinder reduce the momentum of the water supplied from the water supply pipe and generate countless fine bubbles.

<Embodiment> Hereinafter, the present invention will be described with reference to the illustrated embodiment. FIG. 1 is a longitudinal sectional view of a water tank A in which a water supply device 1 according to the present invention is arranged.

The water tank A is provided with a filtering device 2 and a pump mechanism 3. This pump mechanism 3 has a pumping pipe 7 that extends below the motor 4 and that pumps the water that has taken in the water intake pipe 6 facing the water intake part 5 in the water tank A to the filtering device 2. A propeller (not shown) provided in 8 is rotationally driven by the motor 4 to pump the water in the water tank A to the filtering device 2 via the pumping pipe 7.

The filtering device 2 is, for example, as shown in FIG. 1, a first filtering chamber 10 filled with a relatively coarse first filtering medium 9 and a second filtering chamber 10 filled with a fine second filtering medium 11 such as glass wool. Chamber 12
And the pumped water is supplied below the first filtration chamber 10 through the connecting pipe 13. The supplied water rises in the first filtration chamber 10 and is subjected to a physical filtration process by removing feces, dust and the like by the first filtration material 9, and then to the sprinkling gutter 14 in the second filtration chamber 12. Inflow. The sprinkling spout sprinkles the water flowing in from the sprinkling holes 15 above the second filter medium 11. This water is the second filtering material
After passing through 11 through the bottom plate 16 of the second filtration chamber 12 to the water storage chamber 17
Flow into. Since water is sprinkled in the second filtration chamber 12, the dissolved oxygen in the water can be increased, and the biological filtration treatment can be performed by increasing the activity of aerobic bacteria attached to the second filtration material 11. Can be done. Then, the water flowing into the water storage chamber 17 is overflow pipe.
The water is supplied into the water tank A through the water supply pipe 18 and the water supply pipe 19. The filtering device is not limited to the one having the above-mentioned structure, but may have an appropriate structure.

The water supply device 1 according to the present invention is arranged below the water supply pipe 19.

As shown in FIG. 2, for example, the water supply device 1 has a passage portion on a side peripheral surface of a cylindrical tubular body 21 having an opening 20 with an open upper end.
A plurality of slits 22a are provided as 22, and a bottom plate 21a extending in a flange shape is provided at the lower end of the cylindrical body 21. When the lower end of the cylinder 21 reaches the bottom of the water tank A, or when it is located in the bottom gravel B, the lower end may be opened.

The water supply device 1 as described above is arranged so that the opening 20 faces below the water supply pipe 19, and the bottom gravel B is laid on the bottom plate 21a to stably hold the water supply device 1 in the water tank A. . At this time, the upper edge of the water supply device 1, that is, the upper edge of the cylinder 21 may be projected above the water surface WL or may be slightly depressed below the water surface WL, but the cylinder 21 is a water supply pipe. The diameter is preferably larger than 19, and a space is provided between the cylindrical body 21 and the water supply pipe 19. In addition, a transparent synthetic resin or the like can be used as the material of the cylindrical body 21, and in the case of the transparent cylindrical body 21, its presence is difficult to determine when it is placed in water, which is decoratively preferable.

When the filtered water is supplied from the water supply pipe 19 to the water supply device 1 as described above, the water falls into the cylindrical body 21. Since this cylinder 21 is almost closed except for the slit 22a, the dropped water vigorously stirs inside the cylinder 21. Further, the falling water takes in the surrounding air “a” together from the gap when it drops, and vigorously bubbles in the cylindrical body 21.

Then, the water that has flowed into the tubular body 21 jets laterally in the water tank A through the slits 22a, but when the jets flow from the slits 22a, the downward force or stirring force of the water is sufficiently reduced,
Along with the innumerable minute bubbles p, the bubbles 22 flow laterally from the slit 22a, and the bubbles p cause a gentle upward flow.
Therefore, water is evenly and gently supplied around the cylindrical body 21.
Therefore, unlike the conventional water supply device, the supplied water does not cause the bottom gravel B to flow or the water grass C to float. Also, even small fish can be safely raised because the water flow is gentle. Moreover, since countless fine bubbles p can be mixed in the water in the water tank A, the dissolution of oxygen becomes good. Furthermore, since this bubble p looks bright, the decorative effect is also high.

In addition, the passage portion 22 is replaced with the slit 22a shown in FIG.
As shown in the drawing, it may be a small hole 22b.

FIG. 4 shows another embodiment of the present invention. In this embodiment, the bottom portion 21b of the tubular body 21 is separated from the bottom of the water tank A, and the tubular body 21 is suspended from the filtration device 2. That is, the locking edge 23 is extended on the upper edge of the tubular body 21, and the locking flange 24 is provided on the lower edge of the overflow pipe 18 of the filtering device 2, and the locking flange 24 and the locking edge 23 are connected to each other. And is suspended in the water tank A of the tubular body 21. Further, a small hole 22b is also provided in the bottom portion 21b of the tubular body 21.

Also in this embodiment, the downward force of the water supplied from the water supply pipe 19 can be sufficiently reduced, and the air can be taken in to generate a myriad of fine bubbles p to melt oxygen in the water. In the embodiment shown in FIG. 4, a part of the passage portion 22 is located on the water surface WL and the passage portion 22 functions as an air inlet, but the air inlet may be provided separately. However, the amount taken in from the upper end of the overflow pipe 18 is sufficiently effective. Further, the tubular body 21 may be locked to the water tank A.

The present invention has been described above with reference to the illustrated embodiments, but the present invention is not limited to the above-described embodiments, and can be appropriately implemented unless the configuration described in the scope of utility model registration is changed. For example, the tubular body may have a rectangular tubular shape.

<Effects of the Invention> In short, the present invention has a plurality of passages at least on the side surface of a cylinder having an opening at the upper edge, and the opening is provided below a water supply pipe for supplying purified water into a water tank. The tubular body is arranged in the water tank so as to be located through the void, and the water flowing down from the water supply pipe is guided into the tubular body together with the air introduced from the void, and is supplied into the water tank together with the air bubbles through the passage portion. Therefore, not only the momentum of the water supplied to the water tank is sufficiently reduced, but also ambient air is taken in when the water falls into the cylinder. Therefore, according to the present invention, not only the bottom gravel does not flow and the aquatic plants do not float up due to the water flow, but also small fish can be safely raised. Moreover, since a myriad of fine air bubbles can be generated and mixed in the water tank, oxygen is well dissolved, which is suitable for breeding fish. In addition, since the bubbles appear to be bright, the decorative effect is extremely high.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a vertical sectional view of a water tank in which the water supply device of the present invention is arranged, Fig. 2 is a perspective view of the water supply device, and Fig. 3 is a perspective view of another embodiment. FIG. 4 and FIG. 4 are schematic sectional views of a water tank provided with another water supply device. 1 ... Water supply device, 19 ... Water supply pipe, 20 ... Opening part, 21
…… Cylinder, 22 …… Passing part, a …… Air, p …… Bubble.

Claims (1)

[Scope of utility model registration request] 1. A plurality of passage portions are provided on a side surface of a cylindrical body having an opening at least at an upper end thereof, and the openings are positioned below a water supply pipe for supplying purified water into a water tank with a gap. A water supply device for a water tank, in which the cylinder body is disposed in a water tank, and water flowing down from a water supply pipe is introduced into the cylinder body together with air introduced from the void and is supplied into the water tank together with bubbles through a passage portion.