JP2018038374A - Water tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water tank that can secure floatability and safety of plankton by making it easy to generate a moderate circulation water flow, make it easy to appreciate the plankton, and make survival times of the plankton long.SOLUTION: A water tank 1 includes a water flow generation part 11 disposed adjacently to a first wall plate 4, a third wall plate 6, and a fourth wall plate 7 along a bottom plate 3 for generating a bottom side water flow FL toward a second wall plate 5 along the bottom plate 3, a discharged waster part 20 disposed on a second wall plate 5 side with respect to the water flow generation part 11 along the bottom plate 3 for generating a discharged water flow FE that intersects with the bottom side water flow FL and is discharged to the reverse side of the bottom plate 3, and a first inclined part 8 disposed adjacently to the top face 11s of the water flow generation part 11, the third wall plate 6, the fourth wall plate 7, and the first wall plate 4 for generating a return water flow FR from a descending water flow FD that flows from the waster surface WF.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a water tank that tends to generate a gentle circulating water flow.

Planktonic and other low-floating floating organisms (for example, aquatic organisms including clione and jellyfish) are ornamental and may be targeted for breeding. However, it is difficult to control the water flow with respect to buoyancy and breeding is difficult.
Various water tanks have been proposed in order to cope with the difficulty in controlling the water flow (see, for example, Patent Document 1). The water tank described in Patent Document 1 has a water supply / drainage chamber built into the water tank. For this reason, the viewing surface is limited.

JP 2005-253382 A

The water tank described in Patent Document 1 has a problem that the viewing surface is limited because the water supply / drainage chamber is disposed along the entire third vertical wall.
The present invention has been made in view of such a situation, and it is easy to generate a gentle circulating water flow to ensure the buoyancy and safety of floating organisms, to easily observe floating organisms, and the life of floating organisms. It aims at providing the water tank which is easy to prolong.

  The water tank according to the present invention includes a bottom plate, a first wall plate connected perpendicularly to the bottom plate, a second wall plate connected perpendicularly to the bottom plate and facing away from the first wall plate, A third wall plate connected vertically to the bottom plate and connecting the first wall plate and the second wall plate; and a first wall plate connected vertically to the bottom plate and the second wall plate. A water tank comprising a fourth wall plate connected and facing away from the third wall plate, wherein the bottom plate is adjacent to the first wall plate, the third wall plate, and the fourth wall plate. Arranged along the bottom plate, generating a water flow generating portion flowing toward the second wall plate along the bottom plate, and disposed on the second wall plate side with respect to the water flow generating unit along the bottom plate, A drainage section that intersects the bottom stream and generates a drain stream that is discharged to the back side of the bottom plate, and an upper surface of the stream generation section, front A return water flow that is arranged adjacent to the third wall plate, the fourth wall plate, and the first wall plate and that follows the bottom water flow toward the second wall plate with a descending water flow flowing from the water surface. A first sloping portion that generates the water flow, wherein the water flow generating portion introduces and stores reclaimed water regenerated through the drainage portion from the back side, the third wall plate, and the fourth wall plate. And a discharge portion in which a plurality of discharge ports for discharging the water in the storage chamber and generating the bottom-side water flow are arranged, and the drainage portion is arranged in a direction intersecting the bottom plate. It has a perforated plate in which drain outlets for generating a drained water flow are arranged in a mesh shape, and a filter mat for filtering water that has passed through the perforated plate.

Therefore, in the water tank according to the present invention, the water flow generation unit is disposed along the bottom plate adjacent to the first wall plate, and discharges the bottom-side water flow along the bottom plate from the discharge port toward the second wall plate. That is, the water flow generation unit generates a bottom water flow in one direction along the bottom plate from the position in contact with the first wall plate toward the second wall plate.
The drainage unit is disposed in front of the water flow generation unit along the bottom plate, and has a perforated plate in which drainage ports that generate a drainage flow in a direction intersecting the bottom plate are arranged in a mesh shape. That is, the drainage section generates a discharge water flow that is discharged in a direction intersecting with the bottom water flow.
Moreover, a 1st inclination part produces the return water flow along a bottom side water flow. Furthermore, since the bottom wall stream and the return stream are continuously supplied to the second wall plate, a rising water stream directed toward the water surface is generated. Further, on the water surface side, a gentle water surface-side water flow from the second wall plate toward the first wall plate is generated.
Since the discharge water flow discharged to the outside of the water tank intersects the bottom side water flow and the return water flow, the flow to the drain outlet is suppressed. For this reason, when floating organisms are caused to flow by the discharged water flow, the floating organisms are likely to flow toward the second wall plate by the bottom-side water flow or the return water flow before reaching the drain outlet. Further, since the bottom water flow and the return water flow intersect with the discharge water flow, the flow to the second wall plate is suppressed, and the circulating water flow becomes a gentler flow.
The bottom-side water stream, the rising water stream, the water surface-side water stream, the descending water stream, and the return water stream constitute a circulating water stream that circulates in the water tank in one direction, and it is easy to suppress the retention of water on the bottom plate side.
Therefore, the aquarium according to the present invention suppresses the retention of water near the bottom plate while forming a rectangular aquarium, and forms a circulating water flow similar to a circular motion including a rising water flow, so that suspended organisms sink near the bottom plate. It is easy to cancel the state. Moreover, a water tank suppresses a discharge water flow with a bottom side water flow and a return water flow. That is, the aquarium generates a gentler circulating water stream and causes the rising water stream to act on the floating organism.
Therefore, the aquarium suppresses the floating organisms from being sucked and damaged by the drain and raises the floating organisms to the water surface side by the rising water flow, so that the floating organisms can easily float safely.
That is, the aquarium according to the present invention is a rectangular parallelepiped with a wide ornamental surface, but it is easy to generate a gentle circulating water flow that resembles a circular motion that rotates in one direction, and ensures the buoyancy and safety of floating organisms. Therefore, the aquarium according to the present invention has an effect that it is easy to appreciate floating organisms, and it is easy to prolong the breeding period of the floating organisms.

Moreover, in the water tank which concerns on one embodiment of this invention, it arrange | positions adjacent to the said bottom plate, the said 2nd wall plate, the said 3rd wall plate, and the said 4th wall plate, The said bottom side water flow and the said return water flow are carried out. A second inclined portion that generates a rising water flow toward the water surface is provided.
Moreover, in the water tank which concerns on one embodiment of this invention, the inclination angle with respect to the said baseplate of the said 1st inclination part and the inclination angle with respect to the said baseplate of the said 2nd inclination part are equal.
Moreover, in the water tank which concerns on one embodiment of this invention, the said storage chamber is a rectangular parallelepiped which makes the length direction between the said 3rd wall board and the said 4th wall board.
Moreover, in the water tank which concerns on one embodiment of this invention, the said drainage part is arrange | positioned at the recessed part which the said baseplate has.
Moreover, in the water tank which concerns on one embodiment of this invention, the said perforated plate is arrange | positioned flush with the said bottom plate.
In the aquarium according to an embodiment of the present invention, the first outer plate located outside and parallel to the first wall plate and the second outer plate located outside and parallel to the second wall plate. A plate, a third outer plate positioned parallel to the outside of the third wall plate, and a fourth outer plate positioned parallel to the outer side of the fourth wall plate to each other; And connecting the upper end of the inner water tank formed by the first wall plate, the second wall plate, the third wall plate, and the fourth wall plate to the upper end of the outer water tank. The connecting part is provided.
In the water tank according to one embodiment of the present invention, the air layer formed between the inner water tank and the outer water tank is separated from the outside air by a connecting part that connects the upper end part of the inner water tank and the upper end part of the outer water tank. Ventilation is blocked. Therefore, it is possible to suppress condensation that occurs on the surface of the inner water tank and condensation that occurs on the surface of the outer water tank. For this reason, it becomes easy to appreciate floating organisms reared at a low water temperature.
Further, in the water tank according to one embodiment of the present invention, a mounting table on which the bottom plate is mounted, and a shielding frame that is mounted on the mounting table, hiding each of the four corners formed by the outer water tank, .

  Although the aquarium according to the present invention is a rectangular parallelepiped, it is easy to generate a gentle circulating water flow similar to circular motion, and ensures the floating property and safety of the floating organism. Therefore, this aquarium has the effect of making it easier to appreciate floating organisms and prolonging the period of floating organisms.

It is a top view shown in the state which looked at the water tank concerning Embodiment 1 of the present invention from the upper part. It is sectional drawing shown in the state which cut | disconnected the water tank shown in FIG. 1 by the arrow F2-F2 of FIG. It is a front view which shows the arrangement | positioning state of the discharge outlet of the discharge part of the water tank shown in FIG. 2 seeing from the front. It is a side view which shows the water tank which concerns on Embodiment 2 of this invention seeing from a side surface. FIG. 5 is a cross-sectional view showing the water tank shown in FIG. 4 in a state cut along arrows F5-F5 in FIG. 4. It is a fragmentary sectional view which shows the connection part (modification) which interrupts | blocks the air layer in the water tank which concerns on Embodiment 3 of this invention from the outside. It is a fragmentary sectional view which shows the modification of arrangement | positioning of the 1st inclination part in the water tank which concerns on Embodiment 3 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Embodiment 1]
With reference to FIG. 1 thru | or FIG. 3, the water tank 1 which concerns on this Embodiment is demonstrated.
FIG. 1 is a plan view showing a water tank 1 according to Embodiment 1 of the present invention as viewed from above. In addition, although it is the state seen from upper direction, it shows in the state except the top plate 10. FIG.
2 is a cross-sectional view showing the water tank 1 shown in FIG. 1 cut along arrows F2-F2 in FIG.

The water tank 1 includes a bottom plate 3, a first wall plate 4 connected perpendicularly to the bottom plate 3, a second wall plate 5 connected perpendicularly to the bottom plate 3 and facing away from the first wall plate 4, A third wall plate 6 connected perpendicularly to the bottom plate 3 and connecting the first wall plate 4 and the second wall plate 5, and a first wall plate 4 and second wall plate 5 connected perpendicularly to the bottom plate 3. , And a fourth wall plate 7 facing away from the third wall plate 6. That is, the first wall plate 4, the second wall plate 5, the third wall plate 6, and the fourth wall plate 7 form an inner water tank 1f.
The water tank 1 is disposed along the bottom plate 3 adjacent to the first wall plate 4, the third wall plate 6, and the fourth wall plate 7, and flows along the bottom plate 3 toward the second wall plate 5. The water flow generating unit 11 that generates the water flow, and the discharged water flow FE that is disposed on the second wall plate 5 side with respect to the water flow generating unit 11 along the bottom plate 3 and that is discharged to the back side of the bottom plate 3 across the bottom side water flow FL. And a drainage section 20 that produces
In the present application, “adjacent” means including a state from a state of being completely in contact to a state where there is a slight gap so as not to affect the circulating water flow FC.
The aquarium 1 is disposed adjacent to the upper surface 11s of the water flow generation unit 11, the third wall plate 6, the fourth wall plate 7, and the first wall plate 4, and the downward water flow FD flowing from the water surface WF is the first. The 1st inclination part 8 which produces the return water flow FR along the bottom side water flow FL toward the 2 wall board 5 is provided.
Furthermore, since the bottom wall stream FL and the return stream FR are continuously supplied to the second wall plate 5, an ascending stream FU directed toward the water surface WF is generated.
The bottom plate 3, the second wall plate 5, the third wall plate 6, and the fourth wall plate 7 are disposed adjacent to each other, and the ascending water flow FU is generated by directing the bottom water flow FL and the return water flow FR toward the water surface WF. Two inclined portions 9 may be further provided. The second inclined portion 9 generates the rising water flow FU more effectively.
The water flow generation unit 11 is disposed perpendicular to the storage chamber 12 for storing the reclaimed water Wc regenerated through the drainage unit 20 from the back side, and the third wall plate 6 and the fourth wall plate 7. A discharge portion 14 having a plurality of discharge ports 13 that discharge water to generate a bottom-side water flow FL, and the drainage portion 20 has a discharge port 22 that generates a discharge water flow FE in a direction intersecting the bottom plate 3. It has a perforated plate 21 arranged in a mesh shape, and a filter mat 23 for filtering water that has passed through the perforated plate 21.

The water flow generation unit 11 is disposed along the bottom plate 3 in contact with the first wall plate 4, and discharges the bottom-side water flow FL along the bottom plate 3 from the discharge port 13 toward the second wall plate 5. That is, the water flow generation unit 11 generates the bottom water flow FL in the direction along the bottom plate 3 from the position in contact with the first wall plate 4 toward the second wall plate 5. In addition, it is preferable that the discharge part 14 is arrange | positioned perpendicularly | vertically with respect to the baseplate 3, and the discharge outlet 13 is arrange | positioned in parallel with the baseplate 3. FIG.
The drainage unit 20 includes a perforated plate 21 that is disposed in front of the water flow generation unit 11 along the bottom plate 3 and that has drainage ports 22 that generate a drainage water flow FE in a direction intersecting the bottom plate 3. That is, the drainage unit 20 generates a discharge water flow FE that is discharged in a direction intersecting with the bottom water flow FL.
Moreover, the 1st inclination part 8 produces the return water flow FR along the bottom side water flow FL. Further, the second inclined portion 9 generates the rising water flow FU by directing the bottom water flow FL and the return water flow FR toward the water surface WF. Further, on the water surface WF side, a gentle water surface side water flow FW is generated from the second wall plate 5 toward the first wall plate 4.
The storage chamber 12 is preferably a rectangular parallelepiped having a length direction between the third wall plate 6 and the fourth wall plate 7. At this time, the discharge portion 14 is integrated with the storage chamber 12 so that both ends thereof are plate-like adjacent to the third wall plate 6 and the fourth wall plate 7. Moreover, the discharge part 14 may be a semi-cylindrical shape protruding in a semicircular shape in the direction of the bottom side water flow FL.
In addition, the storage chamber 12 is good also as a cylindrical shape as a modification. In this case, the discharge unit 14 and the discharge port 13 are located on the side surface of the cylinder. Moreover, you may make the discharge port 13 protrude as a cylinder shape.

Since the discharged water flow FE discharged to the outside of the water tank 1 intersects the bottom-side water flow FL and the return water flow FR, the flow to the drain port 22 is suppressed. For this reason, when the floating organism is caused to flow by the discharged water flow FE, the floating organism tends to flow toward the second inclined portion 9 by the bottom-side water flow FL or the return water flow FR before reaching the drain port 22. Further, since the bottom water flow FL and the return water flow FR intersect with the discharged water flow FE, the flow to the second wall plate 5 is suppressed, and the circulating water flow FC becomes a gentler flow.
The bottom water stream FL, the rising water stream FU, the water surface side water stream FW, the descending water stream FD, and the return water stream FR constitute a circulating water stream FC that circulates in the water tank 1 in one direction, and suppresses the retention of water on the bottom plate 3 side. It becomes easy.

Therefore, the water tank 1 is a rectangular parallelepiped water tank 1 and suppresses the stagnation of the circulating water flow FC near the bottom plate 3 to form the circulating water flow FC including the rising water flow FU, so that suspended organisms sink near the bottom plate 3. It is easy to cancel. Moreover, the water tank 1 suppresses the discharge water flow FE with the bottom side water flow FL and the return water flow FR. That is, the water tank 1 generates a gentler circulating water flow FC and causes the rising water flow FU to act on the floating organism.
Accordingly, the aquarium 1 suppresses the floating organisms from being damaged by being sucked by the drainage port 22 by causing the floating organisms to pass through the position of the drainage port 22 by the water pressure of the bottom side water flow FL and to flow toward the second inclined portion 9. Then, the floating organisms are raised to the water surface side by the rising water flow FU, so that the floating organisms can easily float safely.
That is, the water tank 1 is easy to generate | occur | produce the gentle circulation water flow FC although it is a rectangular parallelepiped, and ensures the floating property and safety | security of a floating organism. Therefore, the aquarium 1 has an effect that it is easy to appreciate floating organisms and it is easy to prolong the breeding period of the floating organisms.
The aquarium 1 has a flat and undistorted viewing surface for viewing from four directions toward the side of the rectangular parallelepiped (first viewing direction SV1, second viewing direction SV2, third viewing direction SV3, fourth viewing direction SV4). Because it is placed, it is possible to observe floating organisms as they are. Therefore, the aquarium 1 can exhibit floating organisms effectively.

The drainage part 20 is arrange | positioned at the recessed part 3c which the baseplate 3 has. With this configuration, the drainage unit 20 can flatten the surface of the bottom plate 3, so that the stability of the flow of the bottom-side water flow FL can be easily maintained. The recessed part 3c is formed in the box shape attached to the back side of the baseplate 3, for example.
The drainage unit 20 is connected to the drainage channel 25. Since the drainage channel 25 is housed behind the bottom plate 3, it is not exposed to the viewing area. Therefore, the ornamental area maintains high aesthetics, ornamentality, and the safety of floating organisms.
A drainage adjustment plate 24 having a drainage adjustment port 24 m having a diameter larger than that of the drainage port 22 is disposed below the porous plate 21 and the filter mat 23. The drainage adjustment port 24 m secures a flow path between the filter mat 23 and the drainage channel 25.

The porous plate 21 is disposed flush with the bottom plate 3. Since the porous plate 21 is flush with the bottom plate 3, it is possible to further stabilize the circulating water flow FC by suppressing the disturbance of the bottom water flow FL.
The diameter of the drain port 22 is, for example, about 1 mm (millimeter). The arrangement pitch of the drain ports 22 in the row direction (the distance between the center of the drain port 22 and the center of the drain port 22) is, for example, about 1.5 mm. That is, the space between the drain port 22 and the drain port 22 (plate body portion) is about 0.5 mm. The first row (odd row) and the second row (even row) are shifted from the center of the drain port 22. That is, the center of the drainage port 22 in the second row is located at the center position of the space in the first row. The straight line connecting the two centers of the two drain outlets 22 adjacent to each other in the first row and the center of the drain outlet 22 in the second row forms an equilateral triangle. Therefore, the arrangement pitch between the first row and the second row (the shortest distance between the center of the drain port 22 in the first row and the center of the drain port 22 in the second row) is less than 1.5 mm and about 1.3 mm. It becomes. The drain ports 22 as a whole exist in the vertical and horizontal directions where the odd-numbered drain ports 22 and the even-numbered drain ports 22 are alternately shifted in position.
In addition, the above-mentioned dimension of the drain port 22 is only an example. The preferred value varies depending on the size of the floating organisms actually bred. Further, the drain port 22 in FIG. 1 is shown in an enlarged manner in consideration of the visibility of the drawing and the ease of understanding.

The first inclined portion 8 and the second inclined portion 9 are plate-shaped. Thereby, since the structure of the 1st inclination part 8 and the 2nd inclination part 9 can be simplified, the direction change in the return water flow FR and the direction change in the rising water flow FU are easily realizable.
The first inclined portion 8 and the second inclined portion 9 may have a single planar shape as illustrated, but are formed by two planes whose cross-section in the illustrated direction is, for example, V-shaped. May be. One plane may be disposed on the upper surface 11 s of the water flow generation unit 11 and the other plane may form the first inclined portion 8. Similarly, the second inclined portion 9 may be formed in a V-shaped plane, for example. Moreover, although the shape of the 1st inclination part 8 and the 2nd inclination part 9 was shown as planar shape, the curved board made concave shape upwards along the circulating water flow FC may be sufficient.
The height Hs1 that the first inclined portion 8 has between the water flow generating portion 11 and the upper end 8t that contacts the first wall plate 4 is the upper end 9t that the second inclined portion 9 contacts the bottom plate 3 and the second wall plate 5. May be equal to or different from the height Hs2 between the two.
The inclination angle θ1 and the inclination angle θ2 are defined by acute angles from the bottom plate 3. In the present embodiment, the inclination angle θ1 and the inclination angle θ2 can be set to 45 degrees, for example. The angle of 45 degrees balances the descending water flow FD, the return water flow FR, the bottom water flow FL, and the ascending water flow FU, so that the circulating water flow FC becomes a balanced and gentle flow.
When the inclination angle θ1 and the inclination angle θ2 are greater than 45 degrees, the descending water flow is relatively stronger than the lateral water flow, and when the inclination angle is smaller than 45 degrees, it is smaller than the lateral water flow. The rising water flow becomes relatively weak. Appropriate values are set as necessary.

The water tank 1 includes an inner water tank 1f and an outer water tank 1s arranged outside the inner water tank 1f.
The outer water tank 1 s includes a first outer plate 30 that is located outside and parallel to the first wall plate 4, a second outer plate 31 that is located outside and parallel to the second wall plate 5, and a third wall. A third outer plate 32 positioned parallel to the outside of the plate 6, and a fourth outer plate 33 positioned parallel to the outer side of the fourth wall plate 7, the first outer plate 30, the second outer plate 33. The outer plate 31, the third outer plate 32, and the fourth outer plate 33 are connected to each other and the bottom plate 3.
The water tank 1 connects the upper end part 36 of the inner side water tank 1f which the 1st wall board 4, the 2nd wall board 5, the 3rd wall board 6, and the 4th wall board 7 comprise, and the upper end part 37 of the outer side water tank 1s. A connecting portion 38 is provided.
The air layer 35 formed between the inner water tank 1f and the outer water tank 1s is blocked from aeration by the connecting portion 38 that connects the upper end portion 36 of the inner water tank 1f and the upper end portion 37 of the outer water tank 1s. The Therefore, it is possible to suppress condensation that occurs on the surface of the inner water tank 1f and condensation that occurs on the surface of the outer water tank 1s. For this reason, it becomes easy to appreciate the floating organisms reared. This is particularly effective when rearing at a low water temperature.

The first wall plate 4, the second wall plate 5, the third wall plate 6, and the upper end 36 of the fourth wall plate 7, the first outer plate 30, the second outer plate 31, the third outer plate 32, and the fourth. The top plate 10 is preferably disposed on the upper end portion 37 of the outer plate 33. The top plate 10 is preferably disposed above the water surface WF.
The first wall plate 4 to the fourth wall plate 7 are preferably transparent acrylic resin plates (hereinafter referred to as acrylic plates). The acrylic plate is easy to use because it can ensure translucency and is lighter than glass. In addition, since the thermal conductivity is lower than that of glass, it is difficult to be affected by the outside air temperature, and temperature management is easy.
The filter mat 23 suppresses the flow rate of the discharged water stream FE to suppress the influence of the drained water stream FE on the floating organisms, and makes it easier to balance the discharged water stream FE and the circulating water stream FC.
The first outer plate 30 to the fourth outer plate 33 forming the outer water tank 1s are preferably transparent acrylic plates, like the first wall plate 4 to the fourth wall plate 7 forming the inner water tank 1f. The thicknesses of the first wall plate 4 to the fourth wall plate 7, the first outer plate 30 to the fourth outer plate 33, and the bottom plate 3 are, for example, about 10 mm. The bottom plate 3 is, for example, a vinyl chloride plate or an acrylic plate.
The connecting portion 38 is connected between the upper end portion 36 of the inner water tank 1f and the upper end portion 37 of the outer water tank 1s by sealing with, for example, a resin.

  The third wall plate 6 and the fourth wall plate 7 preferably have a height Hb larger than the lateral width Wb in front view. Thereby, since the ascending water flow FU can ensure a long distance, a floating state can be extended to a high range. For this reason, the water tank 1 can improve the appreciability of the floating state of floating organisms.

A drainage channel 25 connected to the drainage unit 20, a pump 26 connected to the drainage channel 25 to circulate the recycled water Wc, a water supply channel 27 for sending the recycled water Wc from the pump 26, and the water temperature of the recycled water Wc from the water supply channel 27. The water temperature adjusting unit 28 to be adjusted and the water supply path 29 for supplying the reclaimed water Wc from the water temperature adjusting unit 28 to the water flow generating unit 11 are disposed below the bottom plate 3. That is, the lower part of the bottom plate 3 can be efficiently circulated through the reclaimed water Wc that is taken out via the drainage part 20 and returned to the storage chamber 12 again.
In the present embodiment, the bottom plate 3 is shown in a state of being arranged outside the outer water tank 1s in consideration of ease of understanding, but the outer periphery of the bottom plate 3 matches the outer periphery of the outer water tank 1s. Also good.

FIG. 3 is a front view showing the arrangement state of the discharge ports 13 of the discharge section 14 of the water tank shown in FIG. 2 as viewed from the front.
The discharge port 13 is linearly arranged at a position parallel to the bottom plate 3 in the discharge unit 14. As a result, the bottom-side water flow FL is stably generated in a wide range from the third wall plate 6 to the fourth wall plate 7 in parallel with the bottom plate 3, so that the circulating water flow FC is a unidirectional water flow with little disturbance.
The discharge ports 13 are arranged linearly and intermittently evenly. In FIG. 3, the arrangement is one row, but the arrangement is not limited to one row, and a plurality of rows can be arranged. The diameter of the discharge ports 13, the arrangement pitch ps, the number of arranged rows, and the height Hd of the discharge unit 14 are appropriately set in consideration of the amount of water in the inner water tank 1 f, the circulation speed of the circulating water stream FC, the speed of the discharged water stream FE, and the like. .

[Embodiment 2]
With reference to FIG. 4 and FIG. 5, the water tank 1 which concerns on this Embodiment is demonstrated. Since the water tank 1 (main body) is the same as that of Embodiment 1, the overlapping description is abbreviate | omitted. This Embodiment demonstrates the case where an additional apparatus is arrange | positioned with respect to the water tank 1. FIG.
FIG. 4 is a side view showing the water tank 1 according to Embodiment 2 of the present invention as seen from the side.
FIG. 5 is a cross-sectional view showing the water tank 1 shown in FIG. 4 taken along arrows F5-F5 in FIG. In addition, about the internal structure of the inner side water tank 1f, it is the same as that of Embodiment 1, and illustration is abbreviate | omitted in consideration of easiness of understanding and visibility.
It is preferable that the water tank 1 is mounted on the mounting table 40. In other words, the water tank 1 preferably includes a mounting table 40 on which the bottom plate 3 is mounted, and a shielding frame 41 that is mounted on the mounting table 40 while hiding each of the four corners 34 of the outer water tank 1s. .
The shielding frame 41 that hides the four corners 34 of the outer aquarium 1 s defines the viewing surface (for example, the third wall plate 6) of the aquarium 1 in a rectangular shape to make it easier to see the floating organism that is the object of viewing. Viewing is easier. Moreover, since the baseplate 3 is mounted in the mounting base 40, arrangement | positioning of the water tank 1 is stabilized. Since the height Hm of the mounting table 40 is set so as to obtain an appropriate viewing surface that is easy to view, the ease of viewing is improved.
The shielding frame 41 is arranged corresponding to the corner 34, and has four horizontal L-shaped frame columns 42 having a horizontal cross section, an upper connecting plate 43 that connects the top portions 42 t of the frame columns 42, and the frame columns 42. And a lower connecting plate 44 for connecting the leg portions 42f to each other.
Since the shielding frame 41 connects the four frame pillars 42 with the upper connection plate 43 and the lower connection plate 44, handling is facilitated, and a portion unnecessary for viewing is shielded to improve the beauty of the viewing surface.

The water tank 1 is disposed on the top plate 10 in addition to the top plate 10 disposed on the first wall plate 4, the second wall plate 5, the third wall plate 6 and the fourth wall plate 7 and covering the water surface. It is preferable that the lighting fixture 46 is provided.
Since the illuminating device 46 secures the brightness and hue necessary for observation of floating organisms, the aquarium 1 improves the beauty and visibility when viewing floating organisms. The lighting fixture 46 is, for example, an LED (light emitting diode), and can emit blue, red, white, and the like.
An electric wire (not shown) for supplying electric power to the luminaire 46 can be guided between the frame column 42 and the corner 34 of the shielding frame 41 and inside the mounting table 40, so that it cannot be seen from the outside. It is in the form and can ensure aesthetics. Further, the power supply to the lighting fixture 46 can be performed by arranging a battery on the top board 10.
In addition, a control unit 47 (wiring omitted) that controls the pump 26, the water temperature adjustment unit 28, and the lighting fixture 46 is disposed inside the mounting table 40.

As described above, the mounting table 40 includes the drainage channel 25 connected to the drainage unit 20, the pump 26 that is connected to the drainage channel 25 and circulates the reclaimed water Wc, the water supply channel 27 that feeds the reclaimed water Wc from the pump 26, It is preferable that a water temperature adjusting unit 28 that adjusts the water temperature of the reclaimed water Wc from the water channel 27 and a water supply channel 29 that supplies the regenerated water Wc from the water temperature adjusting unit 28 to the water flow generating unit 11 are accommodated.
Since the water tank 1 accommodates the drainage channel 25, the pump 26, the water supply channel 27, the water temperature adjusting unit 28, and the water supply channel 29 inside the mounting table 40 on which the bottom plate 3 is mounted, the appearance can be simplified and the mounting can be performed. The entire upper side of the pedestal 40 is set as an ornamental area, and a form that is easy for an observer to view is produced.
The water temperature adjustment unit 28 functions as a cooler that cools the reclaimed water Wc when cold water is required. By adjusting the water temperature by the water temperature adjusting unit 28, water having a required water temperature can be generated. For example, when breeding a clione that survives in cold seawater, the water temperature is adjusted to about 0 to 5 ° C.

Either the third outer plate 32 or the fourth outer plate 33 may be an ornamental surface, and the other may be an information display surface in which a display object DIS (not shown) is arranged between the shielding frame 41 and the other.
In this case, since the display object DIS is disposed between the outer side of either the third outer plate 32 or the fourth outer plate 33 and the shielding frame 41, necessary information can be transmitted with a simple structure. The display object DIS can display, for example, precautions for appreciating advertising media and floating organisms. It works effectively when the water tank 1 is arranged near the wall surface.

[Embodiment 3]
With reference to FIG. 6 and FIG. 7, the water tank 1 which concerns on this Embodiment is demonstrated. In the present embodiment, a modified example related to the arrangement of the first inclined portion 8 on the upper surface 11 s of the connecting portion 39 and the water flow generating portion 11 as a modified example of the connecting portion 38 will be described. These may be combined with other embodiments, or may be combined in the present embodiment.
FIG. 6 is a partial cross-sectional view showing a connecting portion 39 (modified example with respect to the connecting portion 38) that blocks the air layer 35 in the water tank 1 according to Embodiment 3 of the present invention from the outside.
The connection part 39 may be bridged between the upper end part 36 of the inner side water tank 1f and the upper end part 37 of the outer side water tank 1s. Thereby, the air layer 35 is shielded from outside air. That is, although the connection part 39 differs in a structure from the connection part 38, the effect | action similar to the connection part 38 that it is easy to suppress the dew condensation in the inner side water tank 1f arises.
FIG. 7 is a partial cross-sectional view showing a modification of the arrangement of the first inclined portions 8 in the water tank 1 according to Embodiment 3 of the present invention.
The first inclined portion 8 may change the arrangement on the upper surface 11 s of the water flow generation unit 11 and arrange the discharge position adjustment unit 15 on the discharge unit 14 side located at the tip of the water flow generation unit 11. Since the upper surface 11s is flat, the discharge position adjusting unit 15 can increase the degree of the horizontal direction of the return water flow FR.

  The present invention provides an aquarium suitable for generating a gentle circulating water flow and breeding floating organisms, and thus can be used for manufacturing an aquarium for floating organisms that are difficult to breed.

1: water tank, 1f: inner water tank, 1s: outer water tank, 3: bottom plate, 3c: recess, 4: first wall plate,
5: 2nd wall board, 6: 3rd wall board, 7: 4th wall board, 8: 1st inclination part, 8t: Upper end,
9: 2nd inclination part, 9t: Upper end, 10: Top plate, 11: Water flow production | generation part, 11s: Upper surface,
12: Reservoir, 13: Discharge port, 14: Discharge unit, 15: Discharge position adjustment unit, 20: Drainage unit,
21: perforated plate, 22: drainage port, 23: filter mat, 24: drainage adjustment plate,
24m: drainage adjustment port, 25: drainage channel, 26: pump, 27: water supply channel, 28: water temperature adjustment unit, 29: water supply channel, 30: first outer plate, 31: second outer plate, 32: third outer Plate, 33: fourth outer plate,
34: Corner part, 35: Air layer, 36, 37: Upper end part, 38, 39: Connection part, 40: Mounting table, 41: Shielding frame, 42: Frame pillar, 42t: Top part, 42f: Leg part, 43: Upper connecting plate,
44: Lower connecting plate, 46: Lighting equipment, 47: Control unit,
FC: Circulating water flow, FD: Downstream water flow, FE: Discharge water flow, FL: Bottom water flow,
FR: recurrent water flow, FU: rising water flow, FW: water surface side water flow,
Hb, Hd, Hm, Hs1, Hs2: height, ps: arrangement pitch, SV1: first viewing direction,
SV2: second viewing direction, SV3: third viewing direction, SV4: fourth viewing direction, Wb: horizontal width,
Wc: Reclaimed water, WF: Water surface, θ1, θ2: Inclination angle

Claims (8)

A bottom plate, a first wall plate connected perpendicularly to the bottom plate, a second wall plate connected perpendicularly to the bottom plate and facing away from the first wall plate, and perpendicular to the bottom plate A third wall plate connected to connect the first wall plate and the second wall plate, and a third wall plate connected vertically to the bottom plate to connect the first wall plate and the second wall plate to the third wall plate. A water tank comprising a fourth wall plate facing away from the plate,
A water flow generating unit that is disposed along the bottom plate adjacent to the first wall plate, the third wall plate, and the fourth wall plate, and generates a bottom-side water flow toward the second wall plate along the bottom plate. When,
A drainage unit that is disposed on the second wall plate side with respect to the water flow generation unit along the bottom plate, and generates a discharge water flow that intersects the bottom side water flow and is discharged to the back side of the bottom plate;
It is arranged adjacent to the upper surface of the water flow generation unit, the third wall plate, the fourth wall plate, and the first wall plate, and a downward water flow flowing from the water surface is directed toward the second wall plate. A first inclined portion for generating a return water flow along the bottom water flow,
The water flow generation unit is disposed perpendicular to the storage chamber for introducing and storing the reclaimed water regenerated through the drainage unit from the back side, and the water in the storage chamber. A plurality of discharge ports arranged to generate the bottom water flow by discharging
The drainage section has a perforated plate in which drainage ports for generating the drainage flow in a direction intersecting the bottom plate are arranged in a mesh pattern, and a filter mat for filtering water that has passed through the perforated plate. Aquarium. The aquarium according to claim 1,
A second plate that is disposed adjacent to the bottom plate, the second wall plate, the third wall plate, and the fourth wall plate and generates a rising water flow toward the water surface with the bottom-side water flow and the return water flow directed toward the water surface; It is provided with an inclined part. The water tank according to claim 2,
An inclination angle of the first inclined part with respect to the bottom plate is equal to an inclination angle of the second inclined part with respect to the bottom plate. A water tank according to any one of claims 1 to 3,
The storage chamber is a rectangular parallelepiped having a length direction between the third wall plate and the fourth wall plate. A water tank according to any one of claims 1 to 4,
The drainage part is disposed in a recess of the bottom plate. A water tank according to any one of claims 1 to 5,
The perforated plate is arranged flush with the bottom plate. A water tank according to any one of claims 1 to 6,
A first outer plate positioned parallel to the outside of the first wall plate, a second outer plate positioned parallel to the outer side of the second wall plate, and separated to the outer side of the third wall plate. A third outer plate positioned in parallel and a fourth outer plate positioned parallel to the outside of the fourth wall plate; and an outer water tank connected to the bottom plate.
It has a connection part which connects the upper end part of the inner side water tank which the 1st wall board, the 2nd wall board, the 3rd wall board, and the 4th wall board constitute, and the upper end part of the outside water tank. And The water tank according to claim 7,
A mounting table on which the bottom plate is mounted, and a shielding frame that is mounted on the mounting table while hiding each of the four corners formed by the outer water tank.

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