JP6682076B2 - Aquarium - Google Patents

Description

  The present invention relates to a water tank which easily produces a gentle circulating water flow.

Planktonic and other floating organisms with weak swimming power (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 deal with the difficulty of 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 in the water tank. Therefore, the viewing aspect 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 arranged along the entire third vertical wall.
The present invention has been made in view of such a situation, it is easy to generate a gentle circulating water flow to ensure the floating property and safety of floating organisms, it is easy to appreciate floating organisms, the survival period of floating organisms It is an object of the present invention to provide a water tank that is easy to extend.

The water tank according to the present invention includes a bottom plate, a first wall plate vertically connected to the bottom plate, and a second wall plate vertically connected to the bottom plate and facing away from the first wall plate, A third wall plate that is vertically connected to the bottom plate and connects the first wall plate and the second wall plate, and a first wall plate and the second wall plate that are vertically connected to the bottom plate. And a fourth wall plate connected to and facing away from the third wall plate, wherein the water tank is adjacent to the first wall plate, the third wall plate, and the fourth wall plate and the bottom plate . A water flow generation unit located at a corner formed by the first wall plate and generating a bottom side water flow along the bottom plate toward the second wall plate; and the water flow generation unit along the bottom plate with respect to the water flow generation unit. A drainage portion disposed on the side of the second wall plate and intersecting the bottom side water flow to generate a discharge water flow 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 the downward water flow flowing from the water surface is directed toward the second wall plate. A first inclined portion that produces a return water flow along the bottom side water flow, and the water flow generation portion introduces regenerated water that has been regenerated through the drainage portion from the back side and stores the water under the first inclined portion. And a discharge unit that is arranged perpendicular to the third wall plate and the fourth wall plate and that has a plurality of discharge ports that discharge the water in the storage chamber to generate the bottom-side water flow. The drainage section has a perforated plate in which drainage ports that generate the discharged water flow are arranged in a mesh shape in a direction intersecting with the bottom plate, and a filter mat that filters water that has passed through the perforated plate. Is characterized by.

Therefore, in the water tank according to the present invention, the water flow generation unit is arranged adjacent to the first wall plate and along the bottom 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-side 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 part is arranged along the bottom plate in front of the water flow generation part, and has a perforated plate in which drainage ports for generating a discharge water flow are arranged in a mesh shape in a direction intersecting with the bottom plate. That is, the drainage part produces an exhaust water flow discharged in a direction intersecting with the bottom side water flow.
Further, the first inclined portion produces a return water flow along the bottom side water flow. Further, the second wall plate is continuously supplied with the bottom side water flow and the returning water flow, so that an upward water flow 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.
The discharge water flow discharged to the outside of the water tank intersects with the bottom side water flow and the return water flow, so that the flow to the drain port is suppressed. Therefore, when the floating organisms are made to flow by the discharge water flow, they tend to be made to flow toward the second wall plate by the bottom side water flow or the returning water flow before reaching the drainage port. Further, since the bottom side 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 flow, the rising water flow, the water surface side water flow, the descending water flow, and the return water flow constitute a circulating water flow that circulates in one direction in the water tank, and it becomes easy to suppress the retention of water on the bottom plate side.
Therefore, although the water tank according to the present invention is a rectangular parallelepiped water tank, it suppresses the retention of water near the bottom plate and forms a circulating water flow similar to a circular motion including a rising water flow, so that floating organisms sink near the bottom plate. It is easy to eliminate the condition. Further, the water tank controls the discharged water flow by the bottom side water flow and the return water flow. That is, the water tank generates a gentler circulating water flow and causes the ascending water flow to act on the floating organisms.
Therefore, the aquarium suppresses the floating organisms from being sucked into and damaged by the drainage port and raises the floating organisms to the water surface side by the rising water flow, which facilitates the floating organisms to safely float.
That is, the aquarium according to the present invention is a rectangular parallelepiped having a wide viewing surface, but facilitates the generation of a gentle circulating water flow similar to a circular motion that rotates in one direction, and secures the floating property and safety of floating organisms. Therefore, the aquarium according to the present invention has the effects of making it easier to view floating organisms and prolonging the breeding period of floating organisms.

Moreover, in the water tank which concerns on one embodiment of this invention, it is arrange | positioned adjacent to the said bottom plate, the said 2nd wall plate, the said 3rd wall plate, and the said 4th wall plate, and the said bottom side water flow and the said return water flow. It has a 2nd slope part which produces a rising water flow toward the above-mentioned water surface.
Further, in the water tank according to the embodiment of the present invention, the inclination angle of the first inclined portion with respect to the bottom plate is equal to the inclination angle of the second inclined portion with respect to the bottom plate.
In addition, in the water tank according to one embodiment of the present invention, the storage chamber is a rectangular parallelepiped having a lengthwise direction between the third wall plate and the fourth wall plate.
Moreover, in the water tank which concerns on one embodiment of this invention, the said drainage part is arrange | positioned in the recessed part which the said bottom plate has.
Further, in the water tank according to one embodiment of the present invention, the porous plate is arranged flush with the bottom plate.
In addition, in the water tank according to one embodiment of the present invention, a first outer plate that is located outside and parallel to the first wall plate and a second outer plate that is located outside and parallel to the outer side of the second wall plate. The bottom plate, the plate, the third outer plate located outside and parallel to the third wall plate, and the fourth outer plate located outside and parallel to the fourth wall plate to each other; An outer water tank connected to the upper water tank, the upper wall portion of the inner water tank formed by the first wall plate, the second wall plate, the third wall plate and the fourth wall plate, and the upper end portion of the outer water tank. And a connecting portion.
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 connected to the upper end portion of the inner water tank and the upper end portion of the outer water tank by a connecting portion, The ventilation is blocked. Therefore, the dew condensation on the surface of the inner water tank and the dew condensation on the surface of the outer water tank can be suppressed. For this reason, it becomes easy to appreciate floating organisms kept at 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 mounted on the mounting table by concealing each of the four corners formed by the outer water tank. , Is provided.

  The water tank according to the present invention is a rectangular parallelepiped, but facilitates the generation of a gentle circulating water flow similar to a circular motion, and secures the floating property and safety of floating organisms. Therefore, this aquarium has the effect of making it easier to view floating organisms and prolonging the breeding period of floating organisms.

FIG. 3 is a plan view showing the water tank according to Embodiment 1 of the present invention as viewed from above. It is sectional drawing shown in the state which cut | disconnected the water tank shown in FIG. 1 by arrow F2-F2 of FIG. It is a front view which shows the arrangement | positioning state of the discharge port of the discharge part of the water tank shown in FIG. 2 seen from the front. It is a side view which shows the water tank which concerns on Embodiment 2 of this invention seen from a side surface. It is sectional drawing shown in the state which cut | disconnected the water tank shown in FIG. 4 by arrow F5-F5 of FIG. It is a partial cross section figure which shows the connection part (modification) which isolate | separates the air layer from the outside in the water tank which concerns on Embodiment 3 of this invention. It is a fragmentary sectional view showing a modification of arrangement of the 1st slope in a water tank concerning Embodiment 3 of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Embodiment 1]
The water tank 1 according to the present embodiment will be described with reference to FIGS. 1 to 3.
FIG. 1 is a plan view showing a water tank 1 according to Embodiment 1 of the present invention as viewed from above. It should be noted that the state is viewed from above, but the top plate 10 is removed.
FIG. 2 is a cross-sectional view showing the water tank 1 shown in FIG. 1 taken along the arrow F2-F2 in FIG.

The water tank 1 includes a bottom plate 3, a first wall plate 4 vertically connected to the bottom plate 3, and a second wall plate 5 vertically connected to the bottom plate 3 and facing away from the first wall plate 4. A third wall plate 6 that is vertically connected to the bottom plate 3 and connects the first wall plate 4 and the second wall plate 5, and a first wall plate 4 and a second wall plate 5 that are vertically connected to the bottom plate 3. And a fourth wall plate 7 facing each other apart 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 arranged along the bottom plate 3 adjacent to the first wall plate 4, the third wall plate 6, and the fourth wall plate 7, and the bottom side water flow FL is directed along the bottom plate 3 toward the second wall plate 5. And a discharge water flow FE which is disposed along the bottom plate 3 on the second wall plate 5 side with respect to the water flow generation unit 11 and intersects the bottom side water flow FL and is discharged to the back side of the bottom plate 3. And a drainage section 20 for generating.
In the present application, “adjacent” is meant to include a state in which the state of being in close contact with the circulating water flow FC and a state of having a slight gap to the extent that there is no effect on the circulating water flow FC.
The water tank 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 reduces the descending water flow FD flowing from the water surface WF. The first sloped portion 8 that produces the return water flow FR along the bottom-side water flow FL toward the two-wall plate 5 is provided.
Further, since the bottom side water flow FL and the return water flow FR are continuously supplied to the second wall plate 5, an upward water flow FU directed toward the water surface WF is generated.
Firstly, the bottom plate 3, the second wall plate 5, the third wall plate 6, and the fourth wall plate 7 are arranged adjacent to each other, and the bottom side water flow FL and the return water flow FR are directed toward the water surface WF to generate the rising water flow FU. You may further provide the 2 inclination part 9. The second inclined portion 9 more effectively produces the rising water flow FU.
The water flow generation unit 11 is arranged vertically to the storage chamber 12 for introducing and storing the regenerated water Wc regenerated through the drainage unit 20 from the back side, the third wall plate 6 and the fourth wall plate 7, and And a discharge part 14 in which a plurality of discharge ports 13 for discharging the bottom side water flow FL are arranged. The drain part 20 has a drain port 22 for generating a discharge water flow FE in a direction intersecting with 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 arranged 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 side 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 arranged vertically to the bottom plate 3 and the discharge port 13 is arranged parallel to the bottom plate 3.
The drainage unit 20 has a perforated plate 21 arranged along the bottom plate 3 in front of the water flow generation unit 11 and having drainage ports 22 that generate a discharged water flow FE in a direction intersecting the bottom plate 3 arranged in a mesh. That is, the drainage unit 20 produces the discharged water flow FE that is discharged in the direction intersecting with the bottom side water flow FL.
Moreover, the 1st inclination part 8 produces | generates the return water flow FR which follows the bottom side water flow FL. Furthermore, the second inclined portion 9 causes the bottom side water flow FL and the return water flow FR toward the water surface WF to generate an ascending water flow FU. On the side of the water surface WF, 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 whose length direction is between the third wall plate 6 and the fourth wall plate 7. At this time, the discharge part 14 is integrated with the storage chamber 12 in a plate shape having both ends adjacent to the third wall plate 6 and the fourth wall plate 7. Moreover, the discharge part 14 may be a semi-cylindrical shape that projects in a semi-circular shape in the direction of the bottom side water flow FL.
The storage chamber 12 may be, for example, a cylindrical shape as a modification. In this case, the discharge part 14 and the discharge port 13 are located on the side surface of the cylinder. Further, the discharge port 13 may be formed in a cylindrical shape so as to protrude.

The discharge 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, so that the flow to the drain port 22 is suppressed. Therefore, when the floating organisms are flown by the discharge water flow FE, they tend to flow toward the second inclined portion 9 by the bottom side water flow FL or the return water flow FR before reaching the drainage port 22. Further, since the bottom side water flow FL and the return water flow FR intersect with the discharge 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 flow FL, the ascending water flow FU, the water surface side water flow FW, the descending water flow FD, and the returning water flow FR constitute a circulating water flow FC that circulates in the water tank 1 in one direction, and suppresses the retention of water on the bottom plate 3 side. It will be easier.

Therefore, although the water tank 1 is a rectangular parallelepiped water tank 1, it suppresses the retention of the circulating water flow FC near the bottom plate 3 to form the circulating water flow FC including the ascending water flow FU, so that floating organisms sink near the bottom plate 3. Is easy to solve. Further, the water tank 1 suppresses the discharged 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 ascending water flow FU to act on the floating organisms.
Therefore, the aquarium 1 suppresses the floating organisms from being sucked by the drainage port 22 and being damaged by passing the floating organisms through the position of the drainage port 22 by the water pressure of the bottom side water flow FL and flowing toward the second inclined portion 9. However, since the floating organisms are raised to the water surface side by the rising water flow FU, the floating organisms can easily float safely.
That is, the water tank 1 is a rectangular parallelepiped, but facilitates the generation of the gentle circulating water flow FC, and secures the floating property and safety of floating organisms. Therefore, the aquarium 1 has an effect that the floating organisms can be easily viewed and the breeding period of the floating organisms can be easily extended.
The aquarium 1 has flat and undistorted viewing surfaces with respect to viewing from four directions (first viewing direction SV1, second viewing direction SV2, third viewing direction SV3, fourth viewing direction SV4) toward the side surface of the rectangular parallelepiped. As it is placed, floating organisms can be observed as it is. Therefore, the aquarium 1 can effectively display floating organisms.

The drainage unit 20 is arranged in the recess 3c of the bottom plate 3. With this configuration, since the drainage section 20 can flatten the surface of the bottom plate 3, it becomes easy to maintain the stability of the bottom side water stream FL. The recess 3c is formed in, for example, a box shape attached to the back side of the bottom plate 3.
The drainage section 20 is connected to the drainage channel 25. Since the drainage channel 25 is housed on the back side of the bottom plate 3, it is not exposed in the viewing area. Therefore, the ornamental area maintains high aesthetics, aesthetics, and safety of floating organisms.
In the lower layer of the porous plate 21 and the filter mat 23, a drainage adjusting plate 24 having a drainage adjusting port 24m having a larger diameter than the drainage port 22 is arranged. The drainage adjusting port 24m secures a flow path between the filter mat 23 and the drainage channel 25.

The perforated plate 21 is arranged flush with the bottom plate 3. Since the perforated plate 21 is flush with the bottom plate 3, the perturbation of the bottom side water flow FL can be suppressed and the circulating water flow FC can be further stabilized.
The diameter of the drain port 22 is, for example, about 1 mm (millimeter). The array pitch of the drainage ports 22 in the row direction (the distance between the center of the drainage ports 22 and the center of the drainage ports 22) is, for example, about 1.5 mm. That is, the space (plate body portion) between the drainage ports 22 and 22 is about 0.5 mm. The center of the drainage port 22 is offset between the first line (odd line) and the second line (even line). That is, the center of the drainage port 22 on the second row is located at the center position of the space on the first row. The straight line connecting the two centers of the two adjacent drainage ports 22 in the first row and the center of the drainage ports 22 in the second row constitutes an equilateral triangle. Therefore, the arrangement pitch between the first line and the second line (the shortest distance between the center of the drain port 22 on the first line and the center of the drain port 22 on the second line) is less than 1.5 mm and about 1.3 mm. Becomes As for the drainage ports 22, as a whole, the drainage ports 22 in the odd-numbered rows and the drainage ports 22 in the even-numbered rows are present vertically and horizontally with their positions alternately displaced.
The above-described dimensions of the drainage port 22 are merely examples. The preferred value depends on the size of the floating organisms that are actually bred. Further, the drainage port 22 in FIG. 1 is shown in an enlarged manner in consideration of the viewability and understanding of the drawing.

The first sloped portion 8 and the second sloped portion 9 are plate-shaped. As a result, the structures of the first inclined portion 8 and the second inclined portion 9 can be simplified, so that the direction change in the returning water flow FR and the direction change in the rising water flow FU can be easily realized.
The shape of the first inclined portion 8 and the second inclined portion 9 may be a single flat surface shape as shown in the drawing, but is formed by two flat surfaces having a V-shaped cross section in the illustrated direction. May be. One plane may be arranged on the upper surface 11s 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 also be formed by, for example, a V-shaped flat surface. Further, although the shape of the first inclined portion 8 and the second inclined portion 9 is shown as a flat shape, it may be a curved plate that is concave upward so as to follow the circulating water flow FC.
The height Hs1 that the first inclined portion 8 has between the water flow generation portion 11 and the upper end 8t that abuts the first wall plate 4 is the upper end 9t that the second inclined portion 9 abuts the bottom plate 3 and the second wall plate 5. It may be equal to or different from the height Hs2 between and.
The inclination angle θ1 and the inclination angle θ2 are defined by the acute angle from the bottom plate 3. In the present embodiment, the tilt angle θ1 and the tilt angle θ2 can be set to 45 degrees, for example. The 45 degree angle balances the descending water flow FD, the returning 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 larger than 45 degrees, the descending and ascending water flows are relatively stronger than the lateral water flow, and when the inclination angles θ1 and θ2 are smaller than 45 degrees, the descending angle is lower than the lateral water flow. , The rising water flow is relatively weak. An appropriate value is set as needed.

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 1s 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. The first outer plate 30, the second outer plate 32 is provided outside the plate 6 and is parallel to the fourth wall plate 7, and the fourth outer plate 33 is located outside of the fourth wall plate 7 and is parallel to the first outer plate 30. The outer plate 31, the third outer plate 32, and the fourth outer plate 33 are connected to each other and to the bottom plate 3.
The water tank 1 connects the upper end portion 36 of the inner water tank 1f formed by the first wall plate 4, the second wall plate 5, the third wall plate 6, and the fourth wall plate 7 and the upper end portion 37 of the outer 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 ventilation from the outside air 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. It Therefore, the dew condensation on the surface of the inner water tank 1f and the dew condensation on the surface of the outer water tank 1s can be suppressed. For this reason, it becomes easy to view the floating organisms to be raised. It is especially effective when breeding at low water temperature.

The upper end portion 36 of the first wall plate 4, the second wall plate 5, the third wall plate 6, and the fourth wall plate 7, the first outer plate 30, the second outer plate 31, the third outer plate 32, and the fourth wall plate The top plate 10 is preferably arranged on the upper end portion 37 of the outer plate 33. The top plate 10 is preferably arranged above the water surface WF.
It is preferable that the first wall plate 4 to the fourth wall plate 7 are transparent acrylic resin plates (hereinafter referred to as acrylic plates). Acrylic plates are easy to use because they can ensure translucency and are lighter than glass. In addition, since it has a lower thermal conductivity than glass, it is less affected by the outside air temperature and temperature can be easily controlled.
The filter mat 23 suppresses the flow velocity of the discharge water flow FE to suppress the influence of the drainage water flow FE on floating organisms, and facilitates the balance between the discharge water flow FE and the circulating water flow 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 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 have a plate thickness of, 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, resin.

  It is preferable that the third wall plate 6 and the fourth wall plate 7 have a height Hb larger than a lateral width Wb in a front view. As a result, the rising water flow FU can secure a long distance, so that the floating state can be expanded to a high range. For this reason, the aquarium 1 can improve the ornamental property of the floating state of floating organisms.

The drainage channel 25 connected to the drainage section 20, the pump 26 connected to the drainage channel 25 to circulate the reclaimed water Wc, the water supply channel 27 for sending out the reclaimed water Wc from the pump 26, and the water temperature of the reclaimed water Wc from the water channel 27. The water temperature adjusting unit 28 to be adjusted and the water supply passage 29 for supplying the regenerated water Wc from the water temperature adjusting unit 28 to the water flow generating unit 11 are arranged below the bottom plate 3. That is, the lower portion of the bottom plate 3 can efficiently circulate the regenerated water Wc that is taken out through the drainage section 20 and returned to the storage chamber 12.
In addition, in this Embodiment, the bottom plate 3 was shown in the state arrange | positioned on the outer side of the outer water tank 1s, considering the ease of understanding, but the outer periphery of the bottom plate 3 should match the outer periphery of the outer water tank 1s. Is also good.

FIG. 3 is a front view showing the arrangement state of the discharge ports 13 of the discharge part 14 of the water tank shown in FIG.
The ejection port 13 is linearly arranged in the ejection unit 14 at a position parallel to the bottom plate 3. As a result, the bottom-side water flow FL is stably generated over 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 becomes a one-way water flow with little turbulence.
The discharge ports 13 are evenly arranged linearly and intermittently. In FIG. 3, the one-row arrangement is used, 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 rows arranged, and the height Hd of the discharge unit 14 are appropriately set in consideration of the amount of water in the inner water tank 1f, the circulation speed of the circulating water flow FC, the speed of the discharge water flow FE, and the like. .

[Second Embodiment]
The water tank 1 according to the present embodiment will be described with reference to FIGS. 4 and 5. The aquarium 1 (main body) is the same as that in the first embodiment, and thus the duplicate description will be omitted. In this embodiment, a case where an additional device is arranged with respect to the aquarium 1 will be described.
FIG. 4 is a side view showing the water tank 1 according to the second embodiment of the present invention as viewed from the side.
FIG. 5 is a cross-sectional view showing the water tank 1 shown in FIG. 4 taken along the arrow F5-F5 in FIG. The internal structure of the inner water tank 1f is the same as that of the first embodiment, and is not shown in the drawings for ease of understanding and visibility.
The water tank 1 is preferably placed on the placing table 40. That is, it is preferable that the water tank 1 includes a mounting table 40 on which the bottom plate 3 is mounted, and a shielding frame 41 mounted on the mounting table 40 so as to hide each of the four corner portions 34 of the outer water tank 1s. .
The shielding frame 41 that hides the four corners 34 of the outer water tank 1s demarcates the ornamental surface of the aquarium 1 (for example, the third wall plate 6) into a rectangle to make it easier to see the floating organisms to be viewed. Easy to see. Further, since the bottom plate 3 is mounted on the mounting table 40, the arrangement of the water tank 1 is stable. 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 portion 34, and has four frame pillars 42 each having an L-shaped horizontal cross section, an upper connecting plate 43 connecting the tops 42t of the frame pillars 42 to each other, and the frame pillar 42. A lower connecting plate 44 for connecting the leg portions 42f of each other to each other.
In the shielding frame 41, the four frame columns 42 are connected by the upper connecting plate 43 and the lower connecting plate 44, so that the handling is facilitated and a portion unnecessary for viewing is shielded to improve the aesthetic appearance.

The water tank 1 is arranged on the top plate 10 in addition to the top plate 10 arranged 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 to provide a lighting device 46.
Since the luminaire 46 secures the brightness and the color tone necessary for observing the floating organisms, the aquarium 1 improves the aesthetics and the visibility when viewing the floating organisms. The luminaire 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 lighting fixture 46 can be guided to the inside of the mounting table 40 along the frame post 42 of the shielding frame 41 and the corner portion 34, and therefore cannot be seen from the outside. It has a shape, and it is possible to secure aesthetics. Further, power can be supplied to the lighting fixture 46 by disposing a battery on the top plate 10.
A control unit 47 (wiring omitted) that controls the pump 26, the water temperature adjusting 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 that is connected to the drainage section 20, the pump 26 that is connected to the drainage channel 25 to circulate the regenerated water Wc, the water channel 27 that sends out the reclaimed water Wc from the pump 26, and the water channel 27. It is preferable to accommodate 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 reclaimed water Wc from the water temperature adjusting unit 28 to the water flow generation unit 11.
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 entire upper side of the table 40 is used as an ornamental area, and a form that is easy for an observer to see is produced.
The water temperature adjusting unit 28 functions as a cooler that cools the recycled 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 Clione that survives in cold seawater, the water temperature is adjusted to about 0 to 5 ° C.

One of the third outer plate 32 and 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 it and the shielding frame 41.
In this case, since the display object DIS is arranged between the outside 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, an advertisement medium, precautions for watching floating organisms, and the like. This works effectively when the water tank 1 is arranged near the wall surface.

[Third Embodiment]
Water tank 1 according to the present embodiment will be described with reference to FIGS. 6 and 7. In the present embodiment, a description will be given of a modification of the connection part 39 as a modification of the connection part 38 and the arrangement of the first inclined part 8 on the upper surface 11s of the water flow generation part 11. These may be combined with other embodiments, or may be combined in this embodiment.
FIG. 6 is a partial cross-sectional view showing a connecting portion 39 (a modified example of the connecting portion 38) that shields the air layer 35 from the outside in the water tank 1 according to Embodiment 3 of the present invention.
The connecting portion 39 may be bridged between the upper end portion 36 of the inner water tank 1f and the upper end portion 37 of the outer water tank 1s. As a result, the air layer 35 is shielded from the outside air. In other words, although the connecting portion 39 has a different structure from the connecting portion 38, the same operation as that of the connecting portion 38 that the dew condensation in the inner water tank 1f is easily suppressed occurs.
FIG. 7 is a partial cross-sectional view showing a modified example of the arrangement of the first inclined portion 8 in the water tank 1 according to the third embodiment of the present invention.
The first inclined portion 8 may change the arrangement on the upper surface 11s of the water flow generation portion 11 and arrange the discharge position adjustment portion 15 on the side of the discharge portion 14 located at the tip of the water flow generation portion 11. Since the upper surface 11s of the discharge position adjusting unit 15 is flat, the degree of the returning water flow FR in the lateral direction can be increased.

  INDUSTRIAL APPLICABILITY The present invention provides an aquarium suitable for breeding floating organisms by generating a gentle circulating water flow, 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: second wall plate, 6: third wall plate, 7: fourth wall plate, 8: first inclined portion, 8t: upper end,
9: second inclined portion, 9t: upper end, 10: top plate, 11: water flow generation portion, 11s: upper surface,
12: storage chamber, 13: discharge port, 14: discharge part, 15: discharge position adjusting part, 20: drainage part,
21: Perforated plate, 22: Drainage port, 23: Filter mat, 24: Drainage adjustment plate,
24 m: drainage adjustment port, 25: drainage channel, 26: pump, 27: water supply channel, 28: water temperature control unit, 29: water supply channel, 30: first outer plate, 31: second outer plate, 32: third outer Plate, 33: fourth skin,
34: corner part, 35: air layer, 36, 37: upper end part, 38, 39: connecting part, 40: mounting table, 41: shielding frame, 42: frame column, 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: descending water flow, FE: discharge water flow, FL: bottom side water flow,
FR: return flow, FU: rising flow, FW: water surface side flow,
Hb, Hd, Hm, Hs1, Hs2: height, ps: array pitch, SV1: first viewing direction,
SV2: Second viewing direction, SV3: Third viewing direction, SV4: Fourth viewing direction, Wb: Width,
Wc: reclaimed water, WF: water surface, θ1, θ2: inclination angle

Claims (8)

A bottom plate, a first wall plate vertically connected to the bottom plate, a second wall plate vertically connected to the bottom plate and facing away from the first wall plate, and vertically 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 to the bottom plate vertically to the first wall plate and the second wall plate. A fourth wall plate facing away from the plate,
The second wall plate is located adjacent to the first wall plate, the third wall plate, and the fourth wall plate at a corner formed by the bottom plate and the first wall plate, and along the bottom plate. A water flow generating section that produces a bottom-side water flow toward
A drainage unit disposed along the bottom plate on the second wall plate side with respect to the water flow generation unit, and intersecting the bottom side water flow to generate a discharge water flow 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 directs the downward water flow flowing from the water surface toward the second wall plate. A first sloping portion that produces a return water flow along the bottom-side water flow,
The water flow generation unit is below the first inclined portion and is perpendicular to the storage chamber for introducing and storing the regenerated water regenerated through the drainage unit from the back side, and the third wall plate and the fourth wall plate. And a discharge part in which a plurality of discharge ports for discharging the water in the storage chamber to generate the bottom side water flow are arranged,
The drainage portion includes a perforated plate in which drainage ports that generate the discharged water flow are arranged in a mesh shape in a direction intersecting with the bottom plate, and a filter mat that filters water that has passed through the perforated plate. Aquarium to do. 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 that directs the bottom-side water flow and the return water flow toward the water surface to generate a rising water flow. An aquarium characterized by having an inclined portion. The aquarium according to claim 2,
A water tank , wherein the inclination angle of the first inclined portion with respect to the bottom plate is equal to the inclination angle of the second inclined portion with respect to the bottom plate. The water tank according to any one of claims 1 to 3,
A water tank , wherein the storage chamber is a rectangular parallelepiped having a length direction between the third wall plate and the fourth wall plate. The water tank according to any one of claims 1 to 4,
The water tank , wherein the drainage portion is disposed in a recessed portion of the bottom plate. The water tank according to any one of claims 1 to 5,
The water tank , wherein the perforated plate is arranged flush with the bottom plate. The water tank according to any one of claims 1 to 6,
A first outer plate that is spaced apart and parallel to the outside of the first wall plate, a second outer plate that is spaced apart and parallel to the outside of the second wall plate, and is separated from the outside of the third wall plate. An outer water tank in which a third outer plate positioned in parallel and a fourth outer plate spaced apart from and parallel to the outer side of the fourth wall plate are interconnected and connected to the bottom plate,
A connecting part that connects 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 and the upper end of the outer water tank. And the aquarium . The aquarium according to claim 7,
A water tank comprising: a mounting table on which the bottom plate is mounted; and a shield 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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