JP2011250782A - Organism growing aquarium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable appreciation of an aquarium for appreciation from a wide range of direction by widely utilizing space without piping or arranging devices for maintaining good liquid quality in the predetermined quality in the inside of the aquarium for appreciation.SOLUTION: An organism growing aquarium includes: an aquarium 101a for appreciation formed with transparent members in order to appreciate organisms raised inside the liquid accumulated in the aquarium; a water tank 102a for instrument for maintaining liquid quality of the liquid in predetermined quality; a drain pipe 104a which functions as a communicating tube to connect the bottom of the aquarium 101a for appreciation and the bottom of the water tank 102a for instrument; and a water supply pipe 105a which connects the bottom of the aquarium 101a for appreciation and the bottom of the water tank 102a for instrument. The pump arranged inside the water tank for instrument circulates the liquid between the aquarium 101a for appreciation and the water tank 102a for instrument through a drainage canal 104a and the water supply channel 105, and equalizes a position of the liquid surface of the aquarium 101a for appreciation and the position of the liquid surface of the water tank 102a for instrument.

Description

  The present invention relates to a biological breeding water tank.

  2. Description of the Related Art Conventionally, an aquaculture tank for cultivating animals such as fish or plants such as aquatic plants and observing them in water has been widely used. As such a biological breeding aquarium, not only simply storing water and nurturing a living thing but also having a special function has been proposed. For example, an aquarium is known in which a variety of landscapes can be enjoyed when ornamental fish pass through a communicating pipe (Patent Document 1). Moreover, the technique of the fish culture and hydroponic cultivation apparatus which installed the plant hydroponics pond (tank) which planted the ornamental plant in the two-story type on the upper part of the aquarium type fish culture pond for an ornament is known (patent document 2). ). Moreover, the technique of storage apparatuses, such as a portable raw fish which has a water tank and a filtration apparatus and can convey to a consumption place, keeping a fish alive is known (patent document 3). In addition, Pascal's principle using a communication pipe is known as a well-known technique regardless of the industrial field.

  In the invention described in Patent Document 1, it is described that the communication pipe is used for the purpose of enjoying the variation of the landscape when the fish passes through the communication pipe, and the purpose is to show the communication pipe itself. Moreover, in the invention described in Patent Document 2, the water tank is divided into two to diversify the uses, but there is a pipe that connects the water tank that obstructs the viewer's visual recognition in the water tank. Moreover, in the invention described in Patent Document 3, a technique for effectively utilizing a limited amount of water by a filtration device and transporting fish with high freshness is disclosed.

JP 2008-183006 A Utility Model Registration No. 3158233 Japanese Patent Laid-Open No. 11-127726 JP 2006-271254 A JP 2003-1559587 A JP 07-322788 A Utility Model Registration No. 3108541 Utility Model Registration No. 3022824 Japanese Utility Model Publication No. 05-060263 JP 2002-095381 A JP 2009-189361 A Japanese Laid-Open Patent Publication No. 05-176652 Japanese Utility Model Publication No. 10-000282 Utility Model Registration No. 3111953 Japanese Utility Model Publication No. 48-36953

  The problem to be solved by the invention is to arrange a pipe, a filtering device, a cooling / heating device, or another device for maintaining the liquid state in a desired state inside a water tank for growing organisms. In addition to making extensive use of the space, it is possible to appreciate from a wide range of directions, and to improve the quality of the liquid in the aquarium for growing organisms.

  The aquarium of the present invention is an ornamental aquarium formed of a transparent member for appreciating living things grown in a liquid stored in the aquarium, and an instrument for maintaining the liquid quality of the liquid at a predetermined quality. A water tank, a drain pipe functioning as a communication pipe connecting the ornamental water tank and the appliance water tank, a water supply pipe connecting the ornamental water tank and the appliance water tank, the ornamental water tank and the appliance A pump disposed inside the instrument water tank for circulating the liquid between the tank and the bottom of the ornamental water tank and the bottom of the instrument water tank is in contact with one surface of the plate material. And the plate member is provided with a first hole serving as one opening of the drain pipe connected to the inside of the ornamental water tank, and one of the water supply pipes connected to the inside of the ornamental water tank. It is connected to the 2nd hole part used as an opening part, and the bottom part of the said water tank for instruments. A third hole serving as the other opening of the drainage pipe; a fourth hole serving as the other opening of the water supply pipe connected to the pump; the first hole and the third hole; A groove-shaped fifth hole portion provided in the plate member to be connected, and a groove-shaped sixth hole portion provided in the plate member to be connected to the second hole portion and the fourth hole portion. And the ornamental water tank and the appliance for the appliance through the fifth hole and the sixth hole so that the position of the liquid level of the ornamental tank and the position of the liquid level of the appliance water tank are equal. Move liquid to and from the aquarium.

  According to the biological breeding water tank of the present invention, the ornamental water tank and the instrument water tank are separated, and a communication pipe is interposed between the ornamental water tank and the instrument water tank so that the position of the liquid level of the ornamental water tank is determined. As a result, the ornamental water tank can be viewed from a wide range of directions, and the quality of the liquid in the water tank for growing organisms can be improved.

It is a figure which shows the cross section of the biological breeding water tank of 1st Embodiment. It is a figure which shows the system of other filtration. It is a figure which shows the cross section of the biological breeding water tank of 2nd Embodiment. It is a figure which shows the cross section of the biological breeding water tank of 3rd Embodiment. It is a figure which shows the cross section of the biological breeding water tank of 4th Embodiment. It is a figure which shows the cross section of the biological breeding water tank of 5th Embodiment. It is a figure which shows the cross section of the biological breeding water tank of 6th Embodiment. It is a figure which shows the biological breeding water tank of 7th Embodiment. It is a figure which shows the biological breeding water tank of 8th Embodiment. It is a figure which shows embodiment of a deformation | transformation of an auxiliary water tank. It is a figure which shows embodiment of the deformation | transformation of the attachment position of a communicating pipe. It is a figure which shows embodiment of the deformation | transformation of arrangement | positioning of a cooling and a heater in the case of providing a sealed tank. It is a figure which shows embodiment using an external pump. It is a figure which shows another embodiment using an external pump. It is a figure which shows another embodiment using an external pump. It is a figure which shows another embodiment using an external pump. It is the figure which looked at the bottom surface water supply / drainage strainer of embodiment from the surface side and the back surface side. It is the schematic diagram which looked at the aquarium tank from the top in the case where a rectangular bottom surface water supply / drainage strainer is arranged in a rectangular aquarium tank. It is a figure which shows one Example of the biological breeding water tank of 1st Embodiment. It is a figure which shows the structure inside the bottom part of the biological breeding water tank in an Example with an exploded view.

  A biological breeding water tank for carrying out the invention includes an ornamental water tank, an instrument water tank, a communication pipe, and a pump.

  In the biological breeding aquarium of the first embodiment to the third embodiment, an aquarium for observing an organism grown inside the liquid stored in the aquarium, and a liquid quality for maintaining the liquid quality at a predetermined quality An instrument water tank, a communication pipe connecting the ornamental water tank and the instrument water tank, and a pump for circulating a liquid between the ornamental water tank and the instrument water tank are provided. Here, maintaining the liquid quality of the liquid at a predetermined quality includes, for example, setting the content (concentration) of impurities such as dust contained in the liquid by the filtration device to be a predetermined amount or less. Further, for example, it includes maintaining the temperature of the liquid at a desired temperature by a cooling / heating device. In addition, for example, the method includes dissolving air in a liquid with an air supply device to set the amount of oxygen in the liquid to a desired amount. In addition, the carbon dioxide is dissolved in a liquid by a carbon dioxide supplier to make the amount of carbon dioxide a desired amount. In addition, the nutrition (mineral) is dissolved in a liquid by a nutrient (mineral) supply device, and the amount of nutrition (mineral) is set to a desired amount. In addition, the liquid quality (liquid quality) is maintained at a predetermined quality using various instruments.

  In the biological breeding aquarium of the first to third embodiments, the ornamental water tank and the instrument water tank are connected by a communication pipe, so the positions of the liquid level of the ornamental water tank and the liquid level of the instrument water tank are determined. Can be equal. In 1st Embodiment, a pump is connected with the water supply pipe extended from the bottom part of an ornamental water tank, and moves the liquid of an instrument water tank to an ornamental water tank, or moves the liquid of an ornamental water tank to an instrument water tank. In 2nd Embodiment, a pump is connected with the water supply pipe extended from the upper part of an ornamental water tank, and moves the liquid of an instrument water tank to an ornamental water tank. In 3rd Embodiment, the capacity | capacitance of the liquid which circulates through a biological breeding water tank is arranged by arrange | positioning the sealed tank which can store a liquid between a pump and a water supply pipe | tube.

  In the biological breeding aquarium of the fourth embodiment to the sixth embodiment, an ornamental aquarium formed of a transparent member for appreciating the organisms grown in the liquid stored in the aquarium, and a lower part of the ornamental aquarium A water tank for appliances for maintaining the liquid quality of the liquid at a predetermined quality, a first auxiliary part for the auxiliary water tank and the auxiliary water tank No. 1 arranged between the ornamental water tank and the water tank for appliances and isolated by the inner wall An auxiliary water tank formed with two isolation parts, a communication pipe connecting the ornamental water tank and the auxiliary water tank first isolation part, a drain pipe connecting the auxiliary water tank second isolation part and the instrument water tank, And a pump disposed inside the instrument water tank for circulating the liquid between the ornamental water tank and the instrument water tank. In this way, the instrument water tank can be arranged in the lower part of the ornamental water tank.

  In the biological rearing water tank of the fourth embodiment, a second auxiliary water tank first isolation part and a second auxiliary water tank second isolation part isolated by the second inner wall are formed between the ornamental water tank and the pump. The second auxiliary water tank is connected to the second auxiliary water tank second isolation part, the second auxiliary water tank first isolation part is connected to the ornamental water tank, and the height of the second inner wall is the first inner wall. It is higher than the height. In the biological breeding aquarium of the fifth embodiment, the pump is connected to a water supply pipe extending from the upper part of the ornamental aquarium, and moves the liquid in the instrument aquarium to the ornamental aquarium.

  In the biological breeding aquarium of the sixth embodiment, the first ornamental aquarium formed of a transparent member for viewing the organisms grown in the liquid stored in the aquarium, and the lower part of the first ornamental aquarium A second ornamental aquarium formed of a transparent member for appreciating organisms grown inside the liquid stored in the aquarium, and a lower portion of the second ornamental aquarium. An instrument water tank for maintaining a predetermined quality, a pump disposed in the instrument water tank, a first ornamental water tank and a second ornamental water tank, and separated by a first inner wall A first auxiliary water tank formed by having a first auxiliary water tank first isolation part and a first auxiliary water tank second isolation part, and a first connecting the first ornamental water tank and the first auxiliary water tank first isolation part. The second auxiliary water tank first partition, which is arranged between the communication pipe, the first ornamental water tank and the pump and is isolated by the second inner wall. A second auxiliary water tank formed with a second auxiliary water tank and a second isolation water tank, a water supply / drain pipe connecting the first ornamental water tank and the second ornamental water tank, a second ornamental water tank, and an instrument A third auxiliary water tank formed between the first auxiliary part and the third auxiliary water tank and the second auxiliary part, which are arranged between the water tank and separated by the third inner wall; A second communication pipe connecting the water tank and the third auxiliary water tank first isolation part; and a drain pipe for discharging liquid from the third auxiliary water tank second isolation part to the instrument water tank.

  In the biological breeding aquarium of the first to sixth embodiments described above, it is possible to freely determine what kind of instrument is arranged inside the instrument tank. For example, in a biological breeding water tank, depending on the type of organism to be bred, it may not be necessary to provide a filtration device for keeping the content (concentration) of impurities such as dust below a predetermined amount. In the case of growing such a kind of organism, it is not necessary to provide a filtering device inside the instrument water tank. Even when a filtration device is required, it is not always necessary to provide the filtration device inside the instrument water tank. In addition, a cooler / heater (cooler or / and heater) for keeping the temperature of the liquid at a desired temperature can be provided inside the instrument water tank, but whether or not to provide it can be arbitrarily selected. . Further, the filtration device and the pump can be integrated. Also in other embodiments, the appliances arranged in the appliance water tank can be appropriately selected based on the same criteria.

  In the biological breeding aquarium of the seventh embodiment, an ornamental aquarium formed of a transparent member for appreciating the organisms grown in the liquid stored in the aquarium, and a lower part of the ornamental aquarium, An instrument water tank for removing contained contaminants, a first pump and a second pump arranged in the instrument water tank, a pump control unit for controlling the first pump and the second pump, and ornamental A first auxiliary water tank formed between the water tank and the first pump and having a first auxiliary water tank first isolation part and a first auxiliary water tank second isolation part separated by a first inner wall; A second auxiliary water tank formed between the ornamental water tank and the second pump and having a second auxiliary water tank first isolation part and a second auxiliary water tank second isolation part separated by a second inner wall A first pipe connecting the ornamental water tank and the first auxiliary water tank first isolation part, an ornamental water tank and a second auxiliary water tank A second pipe connecting the first isolation part, a third pipe connecting the second auxiliary water tank second isolation part and the first pump, and a first pipe connecting the first auxiliary water tank second isolation part and the second pump. The first inner wall and the second inner wall have the same height, and when the pump controller operates the first pump, the first pipe functions as a communication pipe, and when the first pump is operated. The second pipe functions as a communication pipe and changes the direction of the liquid flow inside the ornamental water tank. Further, the biological breeding water tank of the eighth embodiment includes three pumps, the first pump to the third pump, and generates a more complicated liquid flow than the case where two pumps are provided.

  Hereinafter, first to eighth embodiments and modified embodiments thereof will be described in order with reference to the drawings.

(First embodiment)
FIG. 1 is a view showing a cross section of the biological breeding water tank of the first embodiment. 1 has an ornamental water tank 11, an instrument water tank 12, a pump 13, a drain pipe 14, and a water supply pipe 15. As shown in FIG. In the ornamental water tank 11, organisms are nurtured. Examples of living organisms include animals such as freshwater fish, tropical fish, coral, aquatic plants that inhabit freshwater, and seaweeds that inhabit seawater.

  As for the ornamental water tank 11, the whole surface is formed of a transparent member (light transmissive member), or the other surface other than the bottom surface or the surface on the instrument water tank 12 side is formed of a transparent member. Examples of the transparent member include glass and plastic. In this way, the inside of the ornamental water tank 11 is visually recognized, and the organisms that are raised in the water, salt water, or seawater (collectively referred to as liquid) stored in the ornamental water tank 11 can be appreciated. It has been made possible.

  One end of the drain pipe 14 and one end of the water supply pipe 15 are connected to the bottom surface of the ornamental water tank 11. The liquid stored in the ornamental water tank 11 flows out into the drain pipe 14, and the liquid from the water supply pipe 15 can flow into the ornamental water tank 11. Here, the organism cannot pass through the end of the drainage pipe 14 and the end of the water supply pipe 15 on the side of the ornamental water tank 11, and has such a roughness that the liquid and the contaminant contained in the liquid can pass therethrough. By arranging the net, it is possible to contain living things inside the ornamental water tank 11.

  The instrument water tank 12 is provided in order to remove the contaminant contained in the liquid and eliminate the contamination of the liquid. The instrument water tank 12 is formed of a transparent member or an opaque member (light-impermeable member) for preventing the inside from being visually recognized. Further, the device water tank 12 may be entirely formed of a semi-opaque material that transmits light moderately between the transparent member and the opaque member. You may form so that can be visually recognized. The other end of the drain pipe 14 and the other end of the water supply pipe 15 are connected to the bottom surface of the instrument water tank 12. And the liquid inside the instrument water tank 12 flows out into the water supply pipe 15, and the liquid from the drain pipe 14 can flow into the instrument water tank 12.

  A pump 13 is disposed inside the instrument water tank 12. The pump 13 is provided with a filter for filtration. The pump 13 circulates the liquid inside the ornamental water tank 11 and the liquid inside the instrument water tank 12, and removes contaminants by this filter. As a result, the liquid that has passed through the filter and has a good water quality (liquid quality) is sent out from the water tank 12 for appliances to the water supply pipe 15. The liquid that has passed through the water supply pipe 15 flows into the ornamental water tank 11. On the other hand, based on Pascal's principle, the drainage pipe 14 is connected from the ornamental water tank 11 to the instrument water tank 12 so that the position of the liquid level of the ornamental water tank 11 is equal to the position of the liquid level of the instrument water tank 12. The liquid moves through. That is, since atmospheric pressure is applied to the liquid level of the ornamental water tank 11 and the liquid level of the instrument water tank 12, the drain pipe 14 functions as a communication pipe connecting the bottoms of the two containers with a pipe. Will do. The arrows shown in FIG. 1 indicate the moving direction of the liquid.

  In such a biological breeding aquarium 1, the organisms grown in the ornamental water tank 11 do not move to the instrument water tank 12, but only the liquid freely moves between the ornamental water tank 11 and the instrument water tank 12. To do. For this reason, the amount of liquid that is the sum of the amount of liquid in the ornamental water tank 11 and the amount of liquid in the apparatus water tank 12 is used for growing organisms, and the rate at which the liquid is contaminated by waste products produced by the organisms Compared with the case where only the ornamental water tank 11 is provided without the appliance water tank 12, the water quality of the liquid can be improved. For example, even if the amount of liquid in the ornamental water tank 11 is small, if the amount of liquid in the instrument water tank 12 is sufficient, water quality that does not hinder biological growth can be ensured.

  In addition, since the drain pipe 14 and the water supply pipe 15 are connected to the bottom of the ornamental water tank 11, the interior of the ornamental water tank 11 is viewed from the side 3 direction without being obstructed by these pipes, which are obstructive for the admiration. Visual recognition is possible. Note that the surface of the ornamental water tank 11 on the side of the instrument water tank 12 is formed of an opaque member, the instrument water tank 12 is formed of an opaque member, or is opaque between the ornamental water tank 11 and the instrument water tank 12. The inside of the instrument water tank 12 can be made invisible by any method of arranging a plate, for example, a display that can be viewed through the ornamental water tank 11. Moreover, since the ornamental water tank 11 and the instrument water tank 12 can be largely separated by the action of the communication pipe, the inside of the ornamental water tank can be viewed from the four side surfaces in this way. It becomes.

  As a result, there are no obstacles for visual recognition. The width of the layout inside the ornamental water tank 11 is widened. For example, various ornaments can be arranged inside the ornamental water tank 11. Moreover, various plants can be freely arranged and viewed from various angles. In addition, various animal movements can be viewed from various angles. In this way, since the invisible portion (dead angle) inside the ornamental water tank 11 can be eliminated, it is possible to quickly detect even when a change in the state of the organism occurs. Further, when a decorative accessory placed in the ornamental water tank 11 is damaged, it can be immediately detected and replaced.

  Moreover, since instruments such as a pump are not arranged inside the ornamental water tank 11, the inside can be easily cleaned. Similarly, since no organisms are nurtured inside the instrument water tank 12, the risk of damaging these organisms can be eliminated when cleaning the inside of the instrument water tank 12.

  Although not shown in FIG. 1, not only the pump 13 but also a heater or a cooler for keeping the temperature of the liquid constant can be arranged inside the instrument water tank 12. In this way, the pump 13, the heater, and the cooler can be arranged separately from the organism, so that maintenance of these devices is facilitated, and the organism is sucked into the pump 13, and the heater and the cooler are arranged. It is possible to avoid the risk of being damaged by touching the surface.

  Here, the heater is frequently used for growing organisms that grow in warm seawater such as tropical fish, and the cooler is frequently used for growing organisms that grow in cold seawater such as clione. All of them are unfamiliar to the Japanese climate, but it is possible to grow such creatures by using heaters and coolers. Since the heater and the cooler are arranged inside the instrument water tank 12, the capacity of the instrument water tank 12 can be freely determined according to the required size of the heater and the cooler.

  Although not shown in FIG. 1, an air supply device for growing animals and a carbon dioxide supply device for growing plants can be arranged inside the instrument water tank 12. Furthermore, a nutrient (mineral) supply for invertebrates and plants can be arranged. Air, carbon dioxide, or nutrients generated inside the instrument water tank 12 are supplied to the ornamental water tank 11 through the water supply pipe 15. And animals can grow with sufficient oxygen in the air. Plants can grow while carbon dioxide is generated and oxygen is generated by photosynthesis. When the animal and the plant coexist in the ornamental water tank 11, the animal can also use oxygen generated by photosynthesis by supplying carbon dioxide to the plant.

  The arrows shown in FIG. 1 indicate the case where the liquid is supplied from the pump 13 to the water supply pipe 15 and the liquid is discharged from the ornamental water tank 11 to the appliance water tank 12 by the drain pipe 14. However, the action of decontamination can be achieved by operating the pump 13 to circulate the liquid and removing the pollutants by the filter. Therefore, the same effect can be obtained even if the inflow and outflow directions of the liquid are reversed. Arise. That is, even if the arrow shown in FIG. 1 is in the reverse direction, the same effect is produced.

  When the liquid flow is in the opposite direction, the liquid circulates as follows. The liquid is discharged from the ornamental water tank 11 to the appliance water tank 12 through the water supply pipe 15 by the pump 13. Then, the liquid is discharged from the instrument water tank 12 to the ornamental water tank 11 by the drain pipe 14 functioning as a communication pipe.

  Comparison of the liquid filtration method in the first embodiment in which the instrument water tank 12 and the ornamental water tank 11 in which the pump 13 having the filter is arranged is arranged separately from other conceivable filtration methods is as follows. Compared to

  FIG. 2 is a diagram showing another filtration method. 2A is an upper filtration type, FIG. 2B is a bottom filtration type, FIG. 2C is an external filtration type, and FIG. 2D is an overflow type.

  In the upper filtration type shown in FIG. 2A, a filtration device is arranged on the upper surface of the ornamental water tank 111. Comparing the ornamental water tank 11 and the ornamental water tank 111 of the first embodiment, the upper part of the ornamental water tank 11 is completely open. On the other hand, in the ornamental water tank 111, a filtration device is disposed on the top thereof. Therefore, the viewing water tank 11 is easier to see from above than the viewing water tank 111. In addition, in the ornamental water tank 11, lighting from above is easy, but in the ornamental water tank 111, there is difficulty in lighting from above.

  In the bottom filtration type shown in FIG. 2B, a filtration device is arranged inside the ornamental water tank 112. Comparing the ornamental water tank 11 and the ornamental water tank 112 of the first embodiment, the ornamental water tank 11 has no filtration device inside. On the other hand, in the ornamental water tank 112, a filtration device is disposed therein. Therefore, if the capacity of the ornamental water tank 11 is the same as the capacity of the ornamental water tank 111, the ornamental water tank 11 can use a wider space than the ornamental water tank 111 as a space for biological growth. . Moreover, although maintenance of the filtration apparatus of the ornamental water tank 111 where living things live together is difficult, the ornamental water tank 11 is easy to maintain.

  In the external filtration type shown in FIG. 2 (c), a filtration device is disposed outside the ornamental water tank 113. Comparing the ornamental water tank 11 and the ornamental water tank 113 of the first embodiment, the ornamental water tank 11 has no piping inside. On the other hand, in the ornamental water tank 113, a pipe connected to the filtration device is arranged inside, and a shower pipe is arranged above the pipe. Therefore, the ornamental water tank 11 gives the viewer a clear feeling that no foreign matter is noticeable.

  In the overflow type shown in FIG. 2 (d), a filtration device is disposed below the ornamental water tank 114. Comparing the ornamental water tank 11 and the ornamental water tank 114 of the first embodiment, the ornamental water tank 11 has no filtration device and piping inside. On the other hand, in the ornamental water tank 114, a pipe connected to a filtration device is arranged inside. Therefore, the ornamental water tank 11 gives the viewer a clear feeling that no foreign matter is noticeable.

  In short, in the biological breeding aquarium 1 of the first embodiment, an instrument tank 12 other than those for the purpose of viewing is arranged in the apparatus tank 12, and the ornamental tank 11 has creatures, small items for decoration, etc. Place only the items that will be used for viewing. Then, the bottom of the ornamental water tank 11 and the bottom of the instrument water tank 12 are connected by a drain pipe 14. The drain pipe 14 functions as a communication pipe, and makes the position of the liquid level of the ornamental water tank 11 equal to the position of the liquid level of the instrument water tank 12. Further, the bottom of the ornamental water tank 11 and the bottom of the instrument water tank 12 are connected by a water supply pipe 15 to circulate the liquid between the ornamental water tank 11 and the instrument water tank 12. Thus, even if the overall shape of the ornamental water tank 11 is reduced, good water quality can be maintained for a long time, and a large number of organisms can be introduced and large organisms can be raised.

  Here, the pump 13 is used to circulate the liquid. The pump 13 has a liquid inlet and a liquid outlet, and can take the following two cases depending on whether the outlet or the inlet is connected to the water supply pipe 15. The pump 13 supplies the liquid from the appliance water tank 12 to the ornamental water tank 11 through the water supply pipe 15, and as a result, the drain pipe 14 drains the liquid from the ornamental water tank 11 to the appliance water tank 12. In the first case, the liquid is circulated. The pump 13 supplies water from the ornamental water tank 11 to the appliance water tank 12 through the water supply pipe 15, and as a result, the drain pipe 14 drains the liquid from the appliance water tank 12 to the ornamental water tank 11. In the second case, the liquid is circulated. Note that the direction of the water flow in the ornamental water tank differs between the first case and the second case.

(Second Embodiment)
FIG. 3 is a view showing a cross section of the biological breeding water tank of the second embodiment. The same parts as those shown in FIG. 1 are denoted by the same reference numerals and description thereof will be omitted, and description will be made centering on parts different from the first embodiment. 3 has an ornamental water tank 21, an instrument water tank 22, a pump 13, a drain pipe 14, and a water supply pipe 25. The drain pipe 14 functions as a communication pipe as shown in the first embodiment. The water supply pipe 25 is used in place of the water supply pipe 15 of the first embodiment, and is used to supply water from the upper part of the ornamental water tank 21. The water supply pipe 25 is easier to take countermeasures against water leakage than the water supply pipe 15 of the first embodiment, and it is easier to create a biological breeding water tank.

  In short, in the biological aquarium 2 of the second embodiment, as in the case of the instrument water tank 12 of the first embodiment, an instrument tank 22 other than the one intended for viewing is arranged in the instrument water tank. In the water tank 21, as in the ornamental water tank 11 of the first embodiment, only those that are used for viewing such as creatures and small items for decoration are arranged. Then, the bottom of the ornamental water tank 21 and the bottom of the instrument water tank 22 are connected by a drain pipe 14 that functions as a communication pipe. The second embodiment differs from the first embodiment in that water is supplied from the upper part of the ornamental water tank 11 using the water supply pipe 25 and the liquid is circulated between the ornamental water tank 21 and the instrument water tank 22. It is in. Thus, even if the overall shape of the ornamental water tank 21 is reduced, good water quality can be maintained for a long period of time, and a large number of organisms can be introduced and large organisms can be raised.

(Third embodiment)
FIG. 4 is a view showing a cross section of the biological breeding water tank of the third embodiment. The same parts as those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof will be omitted. The description will focus on parts different from the first embodiment and the second embodiment. 4 includes an ornamental water tank 11, an instrument water tank 32, a pump 13, a drain pipe 14, a water supply pipe 35, and a water supply pipe 36. The drain pipe 14 functions as a communication pipe in the same manner as shown in the first embodiment and the second embodiment. The water supply pipe 35, the sealed tank 37 and the water supply pipe 36 are used in place of the water supply pipe 15 of the first embodiment and the water supply pipe 25 of the second embodiment, and are used for supplying water from the bottom of the ornamental water tank 11. Used for.

  In addition to the ornamental water tank 11, the instrument water tank 32, and the pump 13, the biological breeding water tank 3 has a sealed tank 37 disposed between the water supply pipe 35 and the water supply pipe 36. The function of the instrument water tank 32 is the same as that of the instrument water tank 12 of the first embodiment and the instrument water tank 22 of the second embodiment. The sealed tank 37 is a sealed space for storing the liquid supplied from the pump 13 through the water supply pipe 36 and supplying the liquid to the water supply pipe 35. The amount of liquid circulating in the biological breeding water tank 3 is increased by an amount corresponding to the capacity of the sealed tank 37. By increasing the amount of the circulating liquid in this way, the degree of contamination of the circulating liquid can be reduced. Moreover, even if it arrange | positions what kind of position the sealed tank 37 by setting the sealed tank 37 in this sealed structure, it can be made to circulate through the biological breeding water tank 3. FIG. The sealed tank 37 is a sealed space when in use, but can be opened during maintenance so that the inside of the sealed tank 37 can be easily cleaned or a filter medium can be put inside the sealed tank 37. You may make it employ | adopt a simple structure.

  In the biological breeding water tank 3 shown in FIG. 4, the water supply pipe 35 has a structure that passes through the inside of the instrument water tank 32 and penetrates the bottom of the instrument water tank 32. The reason for adopting such a structure is to reduce an extra space for the water supply pipe 35 to pass through. Of course, the water supply pipe 35 can be provided so as to avoid the instrument water tank 32.

  In FIG. 4, the liquid flows in the direction of the arrow. However, the sealed tank 37 has a function similar to that of the water supply pipe 35, and a portion that can store a large amount of liquid is disposed in the water supply pipe 35. It is a thing. Therefore, when the pump 13 acts to suck out the liquid from the ornamental water tank 11, the effect is the same except that the liquid flows in the opposite direction of the arrow shown in FIG. It is.

  In short, in the biological breeding aquarium 3 of the third embodiment, the instrument water tank 32 is for the purpose of viewing in the same manner as the instrument water tank 12 of the first embodiment and the instrument water tank 22 of the second embodiment. The ornamental aquarium 11 is used for the admiration of creatures, small items for decoration, etc. in the ornamental water tank 11 as in the ornamental water tank 11 of the first embodiment and the ornamental water tank 21 of the second embodiment. Place only things. And the bottom part of the ornamental water tank 11 and the bottom part of the instrument water tank 32 are connected by the drain pipe 14 which functions as a communication pipe. The second embodiment is different from the first embodiment and the second embodiment in that the amount of liquid circulating in the biological breeding water tank 3 is increased using the sealed tank 37. Thus, even if the overall shape of the ornamental water tank 11 is reduced, good water quality can be maintained for a long time, and a large number of organisms can be introduced and large organisms can be raised.

(Fourth embodiment)
FIG. 5 is a view showing a cross section of the biological breeding water tank of the fourth embodiment. The same parts as those shown in FIGS. 1, 2, and 3 are denoted by the same reference numerals, description thereof is omitted, and the description is focused on parts that are different from the first to third embodiments. 5 includes an ornamental water tank 11, an instrument water tank 42, a pump 13, an auxiliary water tank (second auxiliary water tank) 48, an auxiliary water tank (first auxiliary water tank) 49, and a drain pipe (first drain pipe). ) 44, a drain pipe (second drain pipe) 46, a feed water pipe (first feed pipe) 45, and a feed water pipe (second feed pipe) 47. The ornamental water tank 11 is disposed above the instrument water tank 42. FIG. 5 is a diagram showing a state in which the operation of the pump 13 is stopped.

  The auxiliary water tank (second auxiliary water tank) 48 has an outer wall (second outer wall) 48a having a cylindrical outer peripheral part and a bottom part and opened upward, and a rectangular inner wall (second inner wall) 48b. An inner wall 48b is provided inside the outer wall 48a. The outer wall 48a and the inner wall 48b are bonded to each other at the bottom of the outer wall 48a and the inner side of the outer wall 48a, and are two parts separated by the inner wall 48b, an auxiliary water tank isolation part (second auxiliary water tank first isolation part) 48c. And an auxiliary water tank isolation part (second auxiliary water tank second isolation part) 48d.

  The auxiliary water tank (first auxiliary water tank) 49 has an outer wall (first outer wall) 49a having a cylindrical outer peripheral part and a bottom part and opened upward, and a rectangular inner wall (first inner wall) 49b. An inner wall 49b is provided inside the outer wall 49a. The outer wall 49a and the inner wall 49b are bonded to each other at the bottom of the outer wall 49a and the inner side of the outer wall 49a, and are two parts separated by the inner wall 49b, an auxiliary water tank isolation part (first auxiliary water tank first isolation part) 49c. And an auxiliary water tank isolation part (first auxiliary water tank second isolation part) 49d.

  The drain pipe 44 functions as a communication pipe (first communication pipe) that connects the ornamental water tank 11 and the auxiliary water tank isolation part (first auxiliary water tank first isolation part) 49c, and the water supply pipe 45 is auxiliary to the ornamental water tank 11 and auxiliary water tank 45. It functions as a communication pipe (second communication pipe) that connects the water tank isolation part (first auxiliary water tank first isolation part) 49c. Since the drainage pipe 44 and the water supply pipe 45 function as communication pipes, the liquid level position of the ornamental water tank 11 and the liquid level position of the auxiliary water tank isolation part (second auxiliary water tank first isolation part) 48c and auxiliary water tank The position of the liquid surface of the isolation part (first auxiliary water tank first isolation part) 49c is equal to the height of the inner wall 49b (hereinafter, the height refers to the height based on the direction of gravity). Become.

  Compared to the height of the inner wall (first inner wall) 49b, the height of the outer wall 11a of the ornamental water tank 11 is increased by H1 (see FIG. 5), and the height of the inner wall (second inner wall) 48b is increased by H2. (See FIG. 5). Also, the liquid in the auxiliary water tank isolation part (second auxiliary water tank second isolation part) 48d and the liquid in the auxiliary water tank isolation part (first auxiliary water tank second isolation part) 49d flow into the instrument water tank 42 and become empty. Yes. In FIG. 5, H2> H1 is shown, but H1> H2 may be used. In short, it is only necessary that the heights of the outer wall 11a and the inner wall 48b are higher than the height of the inner wall 49b.

  Here, the reason why the height of the inner wall 48b is set higher by H2 than the height of the inner wall 49b is to determine the position of the liquid level according to the height of the inner wall 49b. That is, in the state where the pump 13 is stopped, as described above, the position of the liquid level of the ornamental water tank 11, the position of the liquid level of the auxiliary water tank isolation part 48c, and the position of the liquid level of the auxiliary water tank isolation part 49c are: Since the heights are equal to each other, there is no case where the liquid flows into the instrument water tank 42 from the auxiliary water tank isolation part (second auxiliary water tank first isolation part) 48c beyond the inner wall 48b.

  If the height of the inner wall 48b is lower than the height of the inner wall 49b, or even if the inner wall 48b is not present, there is a problem with the liquid circulation function when the pump 13 is operating. Absent. However, when the pump 13 stops, the height of the inner wall 48b is lower than the height of the inner wall 49b, or when the inner wall 48b does not exist, a part of the liquid in the ornamental water tank 11, Alternatively, all of them flow into the instrument water tank 42 through the auxiliary water level tank 48, which not only causes fatal damage to the growth of organisms, but also requires an excessively large capacity of the instrument water tank 42. It becomes impossible to prevent the liquid from overflowing from 42.

  When the pump 13 is operating, the liquid circulates in the direction indicated by the arrow in FIG. That is, the liquid in the instrument water tank 42 flows from the water supply pipe 47 to the auxiliary water tank isolation part 48d and fills the auxiliary water tank isolation part 48d. And it passes over the inner wall 48b and flows into the auxiliary water tank isolation part 48c. Then, the liquid continues to flow from the auxiliary water tank isolation part 48 c to the ornamental water tank 11 through the water supply pipe 45 so that the water level of the auxiliary water tank isolation part 48 c is equal to the position of the liquid level of the ornamental water tank 11.

  The liquid flows into the ornamental water tank 11 through the water supply pipe 45, but the liquid level of the ornamental water tank 11 and the liquid level of the auxiliary water tank isolation part 49c are affected by the action of the drain pipe 44 functioning as a communication pipe. Are kept equal. That is, the position of the liquid surface of the auxiliary water tank isolation part 49c tends to be equal to the height of the inner wall 49b as the liquid overflows to the auxiliary water tank isolation part 49d. And the position of the liquid level of the ornamental water tank 11 and the position of the liquid level of the auxiliary water tank isolation part 49c are kept equal even when the pump 13 is operated by the action of the drain pipe 44 as a communication pipe. It will be.

  Here, even when the pump 13 is operating, each of the water supply pipe 45 and the drain pipe 44 functions as a communication pipe connecting the ornamental water tank 11, so in principle, as described above, The position of the liquid level of the water tank 11 and the position of the liquid level of the auxiliary water tank isolation part 49c should be kept equal. However, such a principle state is that the water supply pipe 45 and the drain pipe 44 have an infinite passage capacity (the liquid passage resistance is 0), and the auxiliary water tank. This is established when the capacities of the 48 and the auxiliary water tank 49 are infinite. Actually, since the water supply pipe 45 and the drain pipe 44 have a finite cross-sectional area, there is resistance when the liquid passes, and only a certain volume of liquid can pass through per unit time. In addition, in order to allow the liquid to flow into the ornamental water tank 11 against such resistance, it is necessary to apply pressure to the liquid.

  Therefore, the following phenomenon occurs when it is not the principle state. In the state where the pump 13 is operating, the position of the liquid level of the ornamental water tank 11 is higher than when the pump 13 is stopped. The reason is that the liquid level of the auxiliary water tank isolation part 49c needs to be higher than the position of the inner wall 49b in order for the liquid to overflow from the auxiliary water tank isolation part 49c to the auxiliary water tank isolation part 49d beyond the inner wall 49b. Because there is. The position of the liquid level of the ornamental water tank 11 tends to be equal to the position of the liquid level of the auxiliary water tank isolation part 49c by the action of the drain pipe 44 as a communication pipe. Slightly higher than when stopped. In the first embodiment to the third embodiment, for the same reason, it is not in a principle state (for example, when the cross-sectional area of the communication pipe is infinitely increased in order to make the capacity of the drainage system infinite). In the state where the pump is operating, the position of the liquid level of the ornamental water tank is higher than when the pump is stopped.

  In addition, the smaller the cross-sectional area of the drain pipe 44 (that is, the greater the passage resistance), the smaller the cross-sectional area of the auxiliary water tank isolation portion 49c (that is, the pressure applied to the liquid becomes smaller and the liquid overflowing the inner wall 49 becomes smaller The smaller the amount), the higher the position of the liquid level of the ornamental water tank 11.

  Moreover, the position of the liquid level of the auxiliary water tank isolation part 48c becomes higher according to the amount of liquid circulating per unit time. In order to increase the amount of liquid circulated per unit time, the pressure between the liquid surface position of the auxiliary water tank separator 48c and the liquid surface position of the ornamental water tank 11 is increased to increase the pressure of the liquid. Because it is necessary to add. That is, as the amount of the circulating liquid per unit time increases, the liquid level of the auxiliary water tank isolation part 48c increases and the amount of liquid flowing into the ornamental water tank 11 increases.

  In addition, the smaller the cross-sectional area of the drain pipe 44 (that is, the greater the passage resistance), the smaller the cross-sectional area of the auxiliary water tank isolation portion 48c (that is, the pressure applied to the liquid becomes smaller and flows into the ornamental water tank 11). The smaller the amount of liquid), the higher the position of the liquid level of the auxiliary water tank isolation part 48c.

  As described above, the position of the liquid level of the ornamental water tank 11 is slightly changed according to the amount of liquid circulating per unit time, but compared with the case where the pump 13 is stopped. The rise of the position of the liquid level is allowed up to the height H1 (see FIG. 5). This is because the liquid flows out from the wall surface of the ornamental water tank 11 when the position of the liquid level becomes higher than the height H1.

  In addition, when the liquid delivery capacity of the pump 13 is excessive even though the cross-sectional areas of the water supply pipe 45, the drain pipe 44, the auxiliary water tank isolation part 48c, and the auxiliary water tank isolation part 49c are small, the auxiliary water tank The inside of the isolation part 48c and the auxiliary water tank isolation part 49c is filled with the liquid, and the liquid overflows from the auxiliary water tank isolation part 48c and the auxiliary water tank isolation part 49c as time elapses. I will not do. Therefore, in the embodiment, each of the capacity of pump 13 to send out the liquid per unit time (hereinafter abbreviated as the capacity of the pump), the water supply pipe 45, the drain pipe 44, the auxiliary water tank isolation part 48c and the auxiliary water tank isolation part 49c. The relationship with the cross-sectional area is appropriately selected to prevent such a situation from occurring. In the first to third embodiments as well, for the same reason, when the capacity of the pump is excessively large compared with the capacity of the piping to function as a communication pipe, for example, the capacity of the pump itself is excessive. When the cross-sectional area of the communication pipe is small as well as when it is large, the position of the liquid surface of the ornamental water tank may become too high, and the liquid may overflow from the ornamental water tank. Therefore, in the embodiment, the capacity of the pump and the cross-sectional area of the communication pipe are appropriately determined.

  If the capacity of the pump 13 is within a certain range, the liquid level of the ornamental water tank 11 is slightly adjusted up and down automatically, while maintaining the equilibrium state as described above, It circulates inside the biological breeding water tank 4. That is, the biological breeding water tank 4 can be stably controlled as a feedback control system.

  When the capacity of the pump 13 becomes excessively large, the liquid supply capacity of the water supply system exceeds the drainage capacity of the drainage system, and the overflow of the auxiliary water tank isolation part 48c and the auxiliary water tank isolation part 49c described above occurs. Or the liquid surface of the ornamental water tank 11 overflows the outer wall 11a.

  In short, the action of keeping the liquid level of the ornamental water tank 11 constant is that the amount of liquid flowing through the water supply pipe 45 (volume of liquid passing through the water supply pipe 45 per unit time) and the drain pipe 44 are used. This is true when the amount of liquid flowing out (volume of liquid passing through the drain pipe 44 per unit time) becomes equal. As described above, when the capacity of the pump 13 becomes excessively large, the amount of liquid flowing in through the water supply pipe 45 becomes larger than the amount of liquid flowing out through the drain pipe 44, and the ornamental water tank 11. The level of the liquid level continues to rise with the passage of time, and the water level of the instrument water tank 42 continues to fall with the passage of time.

  Therefore, it is important to keep the capacity of the pump 13 within an appropriate range so that the liquid supply capacity of the water supply system does not exceed the liquid discharge capacity of the water distribution system. Here, the water supply system is formed by the pump 13, the water supply pipe 47, the auxiliary water tank 48, and the water supply pipe 45, and the drainage system is formed by the drain pipe 44, the auxiliary water tank 49, and the drain pipe 46.

  Even if the capacity of the pump 13 is not excessive, if the capacity of the auxiliary water tank 48 is not sufficient as compared with the amount of circulating liquid (when the cross-sectional area of the auxiliary water tank isolation part 48c is small), the water supply pipe When the cross-sectional area of 45 is small, the liquid overflows beyond the outer wall of the auxiliary water tank 48. That is, it is important that the auxiliary water tank 48 has a sufficient capacity to function as a buffer (regulation pond). The water supply pipe 45 also functions as a communication pipe (second communication pipe), and acts to make the liquid level position of the auxiliary water tank 48 equal to the liquid level position of the ornamental water tank 11, so that the ornamental water tank 11 is supplied with liquid.

  In this respect, since there is no problem with the drainage system due to its large drainage capacity, it is desirable to increase the size of each part of the drainage system within the allowable range. For example, it is desirable that the cross-sectional areas of the drain pipe 44, the drain pipe 46, the auxiliary water tank isolation part 49c, and the auxiliary water tank isolation part 49d be as large as possible. In addition, it is desirable that the liquid can easily overflow into the auxiliary water tank isolation part 49d.

  In the biological breeding aquarium of the fourth embodiment, by providing an auxiliary water tank, an instrument water tank can be disposed below the ornamental water tank. Further, the distance between the ornamental water tank and the instrument water tank can be set to an arbitrary length by adjusting the lengths of the drain pipe (drain pipe 46) and the water pipe (water pipe 47). Therefore, extend the length of the drain pipe (drain pipe 46) and the water supply pipe (water supply pipe 47) to increase the separation distance between the ornamental water tank and the equipment water tank, and directly touch the equipment water tank. It is possible to easily clean the appliance tank and maintain the appliance in the appliance tank.

(Fifth embodiment)
FIG. 6 is a view showing a cross section of the biological breeding water tank of the fifth embodiment. The same parts as those shown in FIG. 5 are denoted by the same reference numerals and description thereof will be omitted, and description will be made centering on parts different from the fourth embodiment. 6 includes an ornamental water tank 51, an instrument water tank 42, a pump 13, a drain pipe 44, a drain pipe 46, and a water supply pipe 55. The drain pipe 44 functions as a communication pipe as in the fifth embodiment. The water supply pipe 55 is used in place of the auxiliary water tank 48 of the fourth embodiment, and is used to supply water from the upper part of the ornamental water tank 51.

(Sixth embodiment)
FIG. 7 is a view showing a cross section of the biological breeding water tank of the sixth embodiment. The same parts as those shown in FIGS. 5 and 6 are denoted by the same reference numerals and description thereof will be omitted, and description will be made centering on parts different from the fourth embodiment and the fifth embodiment. 7 includes an ornamental water tank (first ornamental water tank) 11, an auxiliary water tank (second auxiliary water tank) 48, an auxiliary water tank (first auxiliary water tank) 49, and a drain pipe (first drain pipe). 44, a water supply pipe (first water supply pipe) 45, and a water supply pipe (second water supply pipe) 47. Each of these members has the same configuration as in the fourth and fifth embodiments.

  7 includes an ornamental water tank (second ornamental water tank) 61, an auxiliary water tank (third auxiliary water tank) 69, a water supply / drain pipe (first water supply / drain pipe) 64, and a drain pipe (second drainage water). Tube) 65, drain pipe 66 (third drain pipe), instrument water tank 62, and pump 13. The auxiliary water tank 69 (third auxiliary water tank) has the same configuration as the auxiliary water tank 49, and the auxiliary water tank isolation part (third auxiliary water tank first isolation part) 69c and the auxiliary water tank isolation part (third auxiliary water tank second). Isolation part) 69d. The drain pipe 65 (third communication pipe) functions as a communication pipe, similarly to the drain pipe 44 that functions as a communication pipe (first communication pipe) and the water supply pipe 45 that functions as a communication pipe (second communication pipe). The water supply / drain pipe 64 functions as a drain pipe of the auxiliary water tank 49 and also functions as a water supply pipe of the ornamental water tank 61. The water supply / drainage pipe 66 functions as a drainage pipe for the auxiliary water tank 69 and also functions as a water supply pipe for the instrument water tank 62. The pump 13 draws liquid from the instrument water tank 62 and supplies it to the auxiliary water tank 48 through the water supply pipe 47.

  In the biological breeding aquarium 6 shown in FIG. 7, the ornamental water tank 11 is disposed at the top, the instrument water tank 62 is disposed at the bottom, and the ornamental water tank 61 is disposed at an intermediate portion between the ornamental water tank 11 and the instrument water tank 62. Yes.

  In the biological breeding aquarium 6, the ornamental aquarium 11, the ornamental aquarium 61, and the appliance aquarium 62 have such a relationship that they are arranged above and below, so that the ornamental aquarium 11 and the ornamental aquarium 61 It is characterized by having an ornamental water tank. The drainage pipe (first drainage pipe) 44 and the drainage pipe (second drainage pipe) 65 each function as a communication pipe, so that the ornamental water tank 11 can be used both when the pump 13 is stopped and during operation. The position of each liquid level with the ornamental water tank 61 is maintained at a substantially constant position. Here, there is no direct action to keep the position of the liquid level of the instrument water tank 62 constant, but when the total amount of liquid is constant, as a result, the liquid level of the instrument water tank 62 is reduced. The position is also kept constant. In addition, when two or more ornamental water tanks are provided, an instrument that could not be stored in the instrument water tank 62 is placed in any of the ornamental water tanks, or a filtering medium is put in the filtration capacity. Can be strengthened.

(Seventh embodiment)
In any of the first to sixth embodiments described above, the number of pumps for circulating the liquid is one. Therefore, the direction of water supply and drainage was set to a certain direction. However, there are tides in the sea, and there are creatures that can only grow in the ocean currents. For example, cocoon is a typical example. Some seaweeds have such properties. Also, as an observer, you may feel peace of mind by watching the seaweed that is swept away by the tide. For this reason, it is meaningful to change the direction of water supply / drainage (the direction of water supply / drainage) to create a natural ocean current flow in the tank.

  As a technique to respond to this, as described in the first embodiment and the third embodiment, a technique of switching the direction of water supply and drainage by switching the liquid inlet and outlet of the pump 13 can be considered. For example, it is conceivable to change the rotation direction of the pump 13 by switching the rotation direction of the motor to switch the direction of water supply and drainage while adopting the same piping. However, it is difficult to obtain a pump that rotates in both directions. Further, in the first to sixth embodiments described above, there is a technique that cannot switch the direction of water supply and drainage by switching the rotation direction of the pump. In response to this, the seventh and eighth embodiments are provided with a plurality of pumps.

  FIG. 8 is a diagram illustrating a biological breeding water tank according to the seventh embodiment. Since the biological breeding aquarium 7 shown in FIG. 8 has a common part with the biological breeding aquarium 5 shown in FIG. 5, the same components as those in FIG.

  In the biological rearing water tank 7, an auxiliary water tank 78 is used instead of the auxiliary water tank 48 in the biological rearing water tank 5. The auxiliary water tank 78 has the same configuration as the auxiliary water tank 49. That is, the inner wall 78b and the inner wall 49b have the same height. The pipe 74 (first pipe), the pipe 75 (second pipe), the pipe 76 (fourth pipe), and the pipe 77 (third pipe) function as a water supply / drainage pipe. In addition to the pump 13 (first pump), a pump 73 (second pump) is disposed inside the instrument water tank 72. The end of the pipe 77 is connected to the pump 13, and the end of the pipe 76 is connected to the pump 73.

The arrows shown in FIG. 8 indicate the direction of liquid flow when the pump 13 operates, and the direction of liquid flow when the pump 73 operates is opposite to this. The operations of the pump 13 and the pump 73 are controlled by the pump control unit 79. Since the number of combinations of operations of the pump 13 and the pump 73 is two, there are 2 ² = 4. Both the pump 13 and the pump 73 are stopped. The pump 13 operates and the pump 73 stops. The pump 73 operates and the pump 13 stops. Both the pump 13 and the pump 73 operate. These are the four. Here, since it does not make sense for both the pump 13 and the pump 73 to operate, any one of the three states except for this is actually employed.

  When the pump 13 operates, the liquid passes through the pipe 77, flows into the auxiliary water tank isolation part 78 c through the auxiliary water tank isolation part 78 d, and flows into the ornamental water tank 11 from the pipe 75. Then, the liquid flows into the auxiliary water tank isolation part 49c from the pipe 74 so that the position of the liquid level of the ornamental water tank 11 coincides with the height of the inner wall 49b, and the liquid flows from the auxiliary water tank isolation part 49c to the auxiliary water tank isolation part 49d. It flows in, passes through the pipe 76, and returns to the instrument water tank 72. In this case, the pipe 74 (first pipe) functions as a communication pipe, and the pipe 75 (second pipe) functions as a pipe that supplies liquid to the ornamental water tank 11. The pipe 75 also functions as a communication pipe, and acts to make the position of the liquid level of the auxiliary water tank 78 equal to the position of the liquid level of the ornamental water tank 11 to supply liquid to the ornamental water tank 11.

  When the pump 73 operates, the liquid passes through the pipe 76, flows into the auxiliary water tank isolation part 49 c through the auxiliary water tank isolation part 49 d, and flows into the ornamental water tank 11 from the pipe 74. Then, the liquid flows from the pipe 75 to the auxiliary water tank isolation part 78c so that the position of the liquid level of the ornamental water tank 11 coincides with the height of the inner wall 78b, and the liquid flows from the auxiliary water tank isolation part 78c to the auxiliary water tank isolation part 78d. It flows in, passes through the pipe 77, and returns to the instrument water tank 72. In this case, the pipe 75 (second pipe) functions as a communication pipe, and the pipe 74 (first pipe) functions as a pipe that supplies liquid to the ornamental water tank 11. The pipe 74 also functions as a communication pipe, and acts to make the position of the liquid level of the auxiliary water tank 49 equal to the position of the liquid level of the ornamental water tank 11 to supply liquid to the ornamental water tank 11.

  In this way, the direction in which the liquid flows in the ornamental water tank 11 changes. Here, for example, in order to make the movement of the liquid resemble a sea tide, either the control of the length of time during which the pump 13 and the pump 73 are stopped simultaneously, or either the pump 13 or the pump 73 is selected. The pump control unit 79 controls the length of time for which the operation is performed. By controlling the operation time of each of the pump 13 and the pump 73, the flow of the liquid imitating a complicated tidal current can be reproduced in the ornamental water tank. In order to express a general tide flow in a sea with a flat seabed, the pump 13 and the pump 73 are operated alternately.

(Eighth embodiment)
FIG. 9 is a diagram showing a biological breeding water tank according to the eighth embodiment. Since the biological breeding aquarium 8 shown in FIG. 9 has a common part with the biological breeding aquarium 7 shown in FIG. 8, the same components as those in FIG.

  In the biological rearing water tank 8, an auxiliary water tank 88 is used in addition to the auxiliary water tank 49 and the auxiliary water tank 78 in the biological rearing water tank 7. The auxiliary water tank 88 has the same configuration as the auxiliary water tank 78 and the auxiliary water tank 49. That is, the inner wall 88b, the inner wall 78b, and the inner wall 49b have the same height. In addition to the piping 74, the piping 75, the piping 76, and the piping 77, the piping 86 and the piping 87 function as a water supply / drainage pipe. In addition to the pump 13 (first pump) and the pump 73 (second pump), a pump 83 (third pump) is disposed inside the instrument water tank 82. An end of the pipe 87 is connected to the pump 83.

The arrows shown in FIG. 9 indicate the direction of liquid flow when the pump 13 is operating and the pump 73 and the pump 83 are stopped. The operations of the pump 13, the pump 73, and the pump 83 are controlled by the pump control unit 89. Since the number of combinations of operations of the pump 13, the pump 73, and the pump 83 is three, there are 2 ³ = 8. The pump 13, the pump 73, and the pump 83 are stopped. The pump 13 is operated, and the pump 73 and the pump 83 are stopped. The pump 73 operates and the pump 13 and the pump 83 are stopped. Both the pump 13 and the pump 73 operate, and the pump 83 stops. The pump 83 operates and the pump 73 and the pump 13 are stopped. The pump 83 and the pump 13 operate, and the pump 73 stops. Both the pump 83 and the pump 73 operate, and the pump 13 stops. The pump 13, the pump 73, and the pump 83 operate. These are the above eight. Here, since it does not make sense for the pump 13, the pump 73, and the pump 83 to operate, any one of the seven states other than this is actually employed.

  For example, as shown by the arrow in FIG. 9, when only the pump 13 is operated, the liquid passes through the pipe 77 and flows into the auxiliary water tank isolation part 78 c via the auxiliary water tank isolation part 78 d and from the pipe 75. It flows into the ornamental water tank 11. Then, the liquid flows into the auxiliary water tank isolation part 49c from the pipe 74 so that the position of the liquid level of the ornamental water tank 11 coincides with the height of the inner wall 49b, and the liquid flows from the auxiliary water tank isolation part 49c to the auxiliary water tank isolation part 49d. It flows in, passes through the pipe 76, and returns to the instrument water tank 82. At the same time, the liquid flows from the pipe 86 to the auxiliary water tank isolation part 88c so that the liquid level of the ornamental water tank 11 coincides with the height of the inner wall 88b, and the liquid flows from the auxiliary water tank isolation part 88c to the auxiliary water tank isolation part 88d. It flows in, passes through the pipe 86, and returns to the instrument water tank 82.

  Similarly, the other six states of the combination of zero, any one, or any two of the three pumps of the three pumps will have a different liquid flow than that described above. The direction in which the liquid flows in the ornamental water tank 11 can be changed more complicatedly than in the seventh embodiment. Here, for example, in order to make the movement of the liquid resemble a sea tide, the pump control unit 89 controls the length of time of operation of the pump 13, the pump 73, and the pump 83. .

It is possible to increase the number of pumps, pipes and auxiliary water tanks to realize more complex liquid flows in the ornamental water tank. In general terms, if the number of pumps is a positive integer n, the number of possible liquid flow modes is 2 ⁿ −1.

`` Modified embodiment of the embodiment ''
Hereinafter, modified embodiments of the first to sixth embodiments will be described.

(Embodiment of modification of auxiliary tank)
In the above-described embodiment, the auxiliary water tank has an outer wall and a rectangular inner wall, and the inner wall is bonded to each other at the bottom of the outer wall and the inner side of the outer wall to form two spaces separated by the inner wall. It was. However, the form of the auxiliary water tank is not limited to this, and may be as shown in FIG.

  FIG. 10 is a diagram showing a modified embodiment of the auxiliary water tank. The auxiliary water tank 481 shown in FIG. 10 is formed on the basis of cylindrical pipes having spaces in two sets. The diameter of the cylindrical pipe (first cylindrical pipe) 481a is larger than the diameter of the cylindrical pipe (second cylindrical pipe) 481b, and the cylindrical pipe 481b is disposed inside the cylindrical pipe 481a. The cylindrical pipe 481a and the cylindrical pipe 481b are made of plastic material, for example. FIG. 10A shows a perspective view of the auxiliary water tank 481, and FIG. 10B shows a cross section taken along the line AA ′ of the auxiliary water tank 481.

  The upper part of the cylindrical pipe 481a is opened, and the lower part (bottom part) of the cylindrical pipe 481a is closed by a lid. The upper part 481c of the cylindrical pipe 481b is opened, and the lower part of the cylindrical pipe 481b penetrates the side surface of the cylindrical pipe 481a and functions as the pipe 482 as it is. Adhesive is applied to the side surface portion of the cylindrical pipe 481a through which the cylindrical pipe 481b penetrates to prevent liquid from leaking from the cylindrical pipe 481a. A hole is disposed on the side surface of the cylindrical pipe 481a, and a pipe 483 is attached to the hole, and water leakage from the cylindrical pipe 481a is prevented by an adhesive.

  Such an auxiliary water tank 481 can be used in place of the auxiliary water tank in the fourth to sixth embodiments. Here, it can be arbitrarily selected whether the pipe 482 is connected to the ornamental water tank side or the filtration device side. That is, when the liquid flows in from the pipe 482, the liquid overflows from the upper part 481c of the cylindrical pipe 481b, so that the position of the liquid level is maintained near the height of the upper part 481c. When the liquid flows out from the pipe 483, the liquid inside the cylindrical pipe 481a flows into the cylindrical pipe 481b from the upper part 481c, so that the position of the liquid level is maintained near the height of the upper part 481c.

  The donut-shaped cross-sectional area surrounded by the cylindrical pipe 481a and the cylindrical pipe 481b and the circular cross-sectional area surrounded by the cylindrical pipe 481b shown in FIG. it can. When the cross-sectional area of the donut shape surrounded by the cylindrical pipe 481a and the cylindrical pipe 481b is equal to the circular cross-sectional area surrounded by the cylindrical pipe 481b, the passage resistance per unit length of the liquid is made uniform. be able to. In many cases, the length of the pipe 482 and the length of the pipe 483 are not greatly different from each other. Therefore, if the passage resistance per unit length is uniform, the water supply capacity and the drainage capacity are substantially equal. I can do it. In addition, by equalizing the cross-sectional area of both, the amount of liquid stored in the auxiliary water tank isolation part having a donut-shaped cross-sectional area and the amount of liquid stored in the auxiliary water tank isolation part having a circular cross-sectional area In the case where one of the pipe 482 and the pipe 483 is used as a water supply pipe and the other is used as a drain pipe, the liquid storage capacities are equal.

(Embodiment of modification of attachment position of communication pipe)
In the above-described embodiment, the communication pipe has been described as being attached to the bottom of the ornamental water tank. However, the communication pipe may not necessarily be the bottom as long as it is disposed below the liquid level.

  FIG. 11 is a view showing an embodiment of a modification of the attachment position of the communication pipe corresponding to the first embodiment. A drain pipe 141 and a water supply pipe 151 functioning as communication pipes are connected to the side surfaces of the ornamental water tank and the appliance water tank, respectively.

(Embodiment of modification of arrangement of heater and cooler)
In the case where a heater and a cooler are arranged, the heater and the cooler can be arranged inside the instrument water tank, but the biological breeding water tank 3 according to the third embodiment includes the sealed tank 37, so The cooler and the cooler can be arranged outside the liquid, not inside the liquid.

  FIG. 12 is a diagram illustrating an embodiment of a modification of the arrangement of the cooling / heating device in the case where a sealed tank is provided as in the third embodiment. A cooling / heating device 38 is attached to the upper portion of the sealed tank 37. The cooling / heating device 38 includes a Peltier element 38a, a heat radiation fin 38b, and a fan 38c. By switching the direction of the current flowing through the Peltier element 38a, the cooling / heating device 38 can function as a heating device or a cooling device. Here, since the upper part of the sealed tank 37 is formed of a material having good heat conduction characteristics, for example, copper, aluminum or the like, the cooling / heating device 38 can effectively heat / cool the liquid. It becomes like this. By adopting such a structure, since the cooling / heating device 38 is isolated from the liquid, there is no concern about corrosion, electrical insulation is easy, and maintenance is easy.

(Modified embodiment of the number of ornamental water tanks)
In the biological breeding aquarium 6 of the sixth embodiment shown in FIG. 7, two aquariums of an ornamental aquarium 11 and an ornamental aquarium 61 arranged in the vertical direction were used. It has already been explained that such an arrangement is made possible by adopting an auxiliary water tank that includes a communication pipe as a part of its configuration. Here, the upper auxiliary water tank 48 sends the liquid from the equipment water tank 62 supplied via the pump 13 to the ornamental water tank 11 using the action of the communication pipe, and when the pump 13 stops, The function of the communication pipe was used to prevent the liquid from the ornamental water tank 11 from flowing into the instrument water tank 62.

  Further, the auxiliary water tank 49 in the upper stage has a function of setting the position of the liquid surface of the ornamental water tank 11 to a predetermined position by using the action of the communication pipe. Further, the auxiliary water tank 69 in the lower stage has a function of setting the position of the liquid level of the ornamental water tank 61 to a predetermined position using the action of the communication pipe.

  Similarly, the number of ornamental water tanks can be any number equal to or greater than 2 (provided that the capacity of the pump 13 is within the range). For example, when the number of ornamental water tanks is 3, the following is performed. The water supply / drainage pipe 66 shown in FIG. 7 is connected to the bottom of a third ornamental water tank (not shown) which is lower than the ornamental water tank 61 and above the water tank for appliances, and functions as a connection pipe. . A fourth auxiliary water tank (not shown) is connected to the bottom of the third ornamental water tank via a connecting pipe. The liquid is caused to flow to the instrument water tank 62 through a drain pipe (not shown) from the fourth auxiliary water tank. By adopting such a configuration, the number of ornamental water tanks can be four. Similarly, the number of ornamental water tanks may be 5 or more.

(About the ornamental water tank, appliance water tank, auxiliary water tank lid)
In order to prevent dust from entering from outside and prevent liquid from spilling when moving in the biological breeding aquarium, it is conceivable to cover each opening of the ornamental water tank, the instrument water tank, and the auxiliary water tank. In this case, if the lid is configured to seal the space, atmospheric pressure is not applied to the liquid surface, and the function as a communication pipe is hindered. Therefore, in this case, a hole and a gap through which air flows are provided in the lid.

(Embodiment in which equipment is placed in the auxiliary tank)
In embodiment which provides the auxiliary water tank mentioned above, the auxiliary water tank is used for the use which adjusts a water level exclusively. However, as a modification of the embodiment, an instrument such as a filter and a cooling / heating device for adjusting the temperature of the liquid may be disposed inside the auxiliary water tank.

  Although not shown in the figure, the purpose of maintaining the liquid quality at a predetermined quality and achieving a good liquid quality is achieved by arranging a filter, a cooling / heating device, etc. in the auxiliary water tank or the flow path connected to the auxiliary water tank. be able to.

(Other embodiments of arrangement of pumps)
The pump for circulating the water in the aquarium is not limited to the submersible pump as described above, and an amphibious pump (a pump that can be used both in water and underwater) and an external pump can also be used.

  FIG. 13 is a diagram showing an embodiment using an external pump. A biological breeding water tank 10 shown in FIG. 13 is a modification of the third embodiment shown in FIG. 4, and the pump 130 is an external pump, and a water supply pipe 361 and a water supply pipe 362 are provided instead of the water supply pipe 36. The point used is different from the third embodiment. The liquid from the instrument water tank 32 passes through the water supply pipe 361, the pump 130, and the water supply pipe 362, reaches the sealed tank 37, and is further injected into the ornamental water tank 11 through the water supply pipe 35.

  FIG. 14 is a diagram showing another embodiment using an external pump. The biological breeding aquarium 181 shown in FIG. 14 has an ornamental aquarium 111 and an ornamental aquarium 211, which are two ornamental aquariums. In addition, a communication pipe 191, a communication pipe 192, and a communication pipe 197 are provided. In addition, an auxiliary water tank 148 and an auxiliary water tank 149 are provided. In addition, an auxiliary water tank 190 is provided. In addition, a pipe 196 is provided. In the biological water tank 181, various instruments can be placed inside the auxiliary water tank 148, the auxiliary water tank 149, and the auxiliary water tank 190. The external pump 130 is an external pump that discharges the liquid sucked from the pipe 126 to the pipe 125.

  FIG. 15 is a diagram showing still another embodiment using an external pump. 15 is obtained by replacing the auxiliary water tank 148 with the auxiliary water tank 193 in the biological rearing water tank 181 shown in FIG. The external pump 130 is an external pump that discharges the liquid sucked from the pipe 126 to the pipe 125. Here, the pipe 125 does not come into contact with the liquid surface of the auxiliary water tank 193, and thus prevents the liquid from flowing backward from the pipe 125 to the pipe 126 even when the external pump 130 is stopped. .

  FIG. 16 is a diagram showing still another embodiment using an external pump. A biological breeding water tank 183 shown in FIG. 16 is obtained by omitting the auxiliary water tank 190 from the biological breeding water tank 182 shown in FIG. Here, the pipe 125 does not come into contact with the liquid level of the ornamental water tank 111, and thus prevents the liquid from flowing back from the pipe 125 to the pipe 126 even when the external pump 130 is stopped. Yes.

(Protecting the opening for drainage and the opening for water supply)
In the embodiment described above, an opening for drainage and an opening for water supply are provided at the bottom or side of the ornamental water tank. In this case, if the opening is exposed, there is a possibility that organisms in the water tank are sucked from the opening. Moreover, there is a possibility that a problem that the communication pipe is clogged due to sucking large dust may occur. Even if gravel is spread like a conventional general water tank, there is a case where gravel is sucked from the opening. Therefore, such a problem can be solved by installing a plate (referred to as a bottom surface water supply / drainage strainer) inserted inside the bottom surface of the water tank in a clog shape.

  FIG. 17 is a view of the bottom surface water supply / drainage strainer as viewed from the front surface side and the back surface side. The shape of the bottom surface water supply / drainage strainer is quadrilateral if the shape of the ornamental water tank is a rectangular parallelepiped, and round if it is a cylinder. FIG. 17A is a view of a rectangular bottom surface water supply / drainage strainer as viewed from the front surface side, and FIG. 17B is a view of the rectangular bottom surface water supply / drainage strainer as viewed from the back surface side. Moreover, FIG.17 (c) is the figure which looked at the round bottom surface water supply / drainage strainer from the surface side, and FIG.17 (b) is the figure which looked at the round bottom surface water supply / drainage strainer from the back surface side.

  The bottom surface water supply / drainage strainer has a clog-like projection, and is arranged on the bottom of the ornamental water tank with the projection slightly lifted from the bottom surface. Also, this clog-like protrusion protrudes from the flat surface, and the tip of the protrusion of the bottom surface water supply / drainage strainer is in contact with the wall surface of the ornamental water tank so that it is between the flat part of the bottom surface water supply / drainage strainer and the wall surface of the ornamental water tank. An air gap is formed in the surface.

  FIG. 18 is a schematic view seen from above the ornamental water tank when a rectangular bottom surface water supply / drainage strainer is arranged in a rectangular parallelepiped water tank. Arrows A and B indicate the flow direction of the liquid. As indicated by the arrow A, the liquid is drained from the gap between the flat surface of the bottom surface water supply / drainage strainer 261 and the wall surface of the ornamental water tank 161. As shown, the liquid is supplied from the gap between the flat surface portion of the bottom surface water supply / drainage strainer 261 and the wall surface of the ornamental water tank 161. Here, the clog-like projection 262 is provided so as to separate the water supply port 162 and the drainage port 163 which are openings. Thus, by separating the water supply port 162 and the drainage port 163, smooth circulation of the liquid is ensured.

  Further, the size of the object to be sucked can be adjusted depending on the width of the gap between the flat portion of the bottom surface water supply / drainage strainer 261 and the wall surface of the ornamental water tank 161. For example, if the width of the gap is 2 to 3 mm, an object having a size larger than this width will not be sucked. When laying gravel and pebbles, if the diameter of gravel is 4 mm or more, for example, there is no worry of being sucked in even if the gravel is spread. In addition, a large number of openings of 2 to 3 mm can be provided in the flat surface portion of the bottom surface water supply / drainage strainer 261 to also serve as a bottom surface filter (a filter disposed on the bottom surface). If gravel larger than the opening is spread, it will pass through the gravel as it is drained, allowing filtration.

(Example)
FIG. 19 is a diagram showing one example of the biological breeding water tank of the first embodiment. The biological rearing water tank 1a of the embodiment is an ornamental water tank 101a that is one embodiment of the ornamental water tank 11, an instrument water tank 102a that is one embodiment of the instrument water tank 12, and one implementation of the drain pipe 14. The drainage pipe 104a which is an example, and the water supply pipe 105a which is one Example of the water supply pipe 15 are provided. Since the instrument water tank 102a is formed of an opaque member, the internal pump cannot be visually recognized. Further, since the drain pipe 104a and the water supply pipe 105a are arranged inside the opaque bottom portion 16 of the ornamental water tank 101a, they cannot be visually recognized. In addition, you may make it form a part of instrument water tank 12 in the part which cannot be seen from an observer with a transparent member. For example, the surface opposite to the side viewed by the viewer may be formed of a transparent member. In this way, it is possible to make a good impression when viewing the ornamental water tank 101a, and to visually check the state of the instrument arranged inside the instrument water tank 12, for example, the dirt of the filtration device and the state of the pump. it can.

  As shown in FIG. 19, the interior of the ornamental water tank 101a is wide and can be easily seen from the direction other than the direction of the instrument water tank 102a. Moreover, the thickness of the bottom part 16 is thin and the interior property is also high.

  FIG. 20 is an exploded view showing the internal structure of the bottom 16 in the embodiment. The bottom portion 16 is formed of a plate material 107 (first plate material), a plate material 108 (second plate material), and a plate material 109 (third plate material), which are three plate materials. The material of the plate material is a member that can be easily bonded, for example, an acrylic plate.

  The plate material 107 is a member that forms the bottom of the ornamental water tank 101a, and the lower part of the wall surface of the ornamental water tank 101a (not shown in FIG. 20) is bonded to the upper part of the plate material 107 with an adhesive. The plate member 107 is provided with a hole 107a, a hole 107b, a hole 107c, and a hole 107d that penetrate the front surface and the back surface.

  The plate material 108 is a plate material having a predetermined thickness d (for example, 1 cm). The plate member 108 is provided with a groove-shaped hole portion 108a and a groove-shaped hole portion 108b that penetrate the front surface and the back surface. The hole part 108a is formed so that the hole part 107a and the hole part 107c are arranged above it, and the hole part 108b is formed so that the hole part 107b and the hole part 107d are arranged above it. Yes. The groove width W1 of the hole portion 108a is, for example, 6 cm, and the groove width W2 of the hole portion 108b is, for example, 1 cm.

The plate material 109 is configured to sandwich the plate material 108 together with the plate material 107, and the plate material 108 and the plate material 107, and the plate material 108 and the plate material 109 are bonded to each other with an adhesive. Thus, the hole 108a forms a space having a cross-sectional area of 6 cm ² , and the hole 108b forms a space having a cross-sectional area of 1 cm ² . The hole 108a functions as the drain pipe 104a of the embodiment of the drain pipe 14 in FIG. 1, and the hole 108b functions as the water supply pipe 105a of the embodiment of the water pipe 15 in FIG. Here, the reason why the cross-sectional area of the hole 108a is made larger than the cross-sectional area of the hole 108b is to make the drainage capacity larger than the water supply capacity.

  The bottom of the wall surface of the instrument water tank 102a (not shown in FIG. 20) is bonded to the upper portions of the hole 107c and the hole 107d with an adhesive. The hole 107c is connected to the internal space of the instrument water tank 102a, and a pump (not shown) is connected to the hole 107d.

  The main effects of the above-described embodiments and examples are briefly summarized below.

  In any of the first to third embodiments described above, the positional relationship (vertical relationship) in the height direction of the ornamental water tank and the instrument water tank connected by the pipe functioning as the communication pipe is as follows. Although it is limited as described in each embodiment, the position in the horizontal direction is not limited at all. In addition, the arrangement of the communication pipes has a great degree of freedom as long as it functions as a communication pipe. Therefore, it is possible to arrange the ornamental water tank so that it is most impressive. It is also possible to arrange various blindfolds (shields) between the auxiliary water tank. In 1st Embodiment, since it connects with the water tank for instruments from the bottom part of an ornamental water tank, piping is not conspicuous. In the embodiment, the thickness of the pipe can be reduced to make it less noticeable. In 2nd Embodiment, the number of piping which should pay attention to a water leak can be reduced. In the third embodiment, by providing the sealed tank, the circulation amount of the liquid can be increased, and the effect of improving the water quality is high. In addition, the cooling / heating device can be easily attached and maintained.

  In any of the above-described fourth to sixth embodiments, the instrument water tank can be disposed under the ornamental water tank. In 4th Embodiment, since it pipes from the bottom part of an ornamental water tank, piping is not conspicuous. Moreover, in 5th Embodiment, the number of piping which should pay attention to a water leak can be reduced. In the sixth embodiment, the ornamental water tank can be arranged in two upper and lower stages.

  In both the seventh embodiment and the eighth embodiment described above, the flowing direction of the liquid inside the ornamental water tank can be changed with time. In the seventh embodiment, three flow modes can be generated, and in the eighth embodiment, seven flow modes can be generated.

  Embodiments obtained by combining two or more embodiments from the first to eighth embodiments and modified embodiments described above are also possible. Moreover, it goes without saying that the present invention is not limited to the above-described embodiment but extends to the scope of the same technical idea.

  1, 1 a, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 Biological rearing water tank, 11 Ornamental water tank, 11a Outer wall ), 14 Drain pipe, 15 Water supply pipe, 16 Bottom, 21 Ornamental water tank, 22 Instrument water tank, 25 Water supply pipe, 32 Instrument water tank, 35, 36, 361, 362 Water supply pipe, 37 Sealed tank, 38 Cooling / heating , 38a Peltier element, 38b Radiation fin, 38c Fan, 42 Equipment water tank, 44 Drain pipe, 45 Water supply pipe, 46 Drain pipe, 47 Water supply pipe, 48 Auxiliary water tank (second auxiliary water tank), 48a Outer wall, 48b Inner wall, 48c auxiliary water tank isolation part (second auxiliary water tank first isolation part), 48d auxiliary water tank isolation part (second auxiliary water tank first isolation part), 49 auxiliary water tank (first Auxiliary water tank), 49a outer wall, 49b inner wall, 49c auxiliary water tank isolation part (first auxiliary water tank first isolation part), 49d auxiliary water tank isolation part (first auxiliary water tank second isolation part), 51 ornamental water tank, 55 water supply pipe 61 Water tank for ornamental use (2nd water tank for ornamental use) 62 Water tank for appliances, 64 Water supply / drain pipe, 65 Drain pipe, 66 Water supply / drain pipe, 69 Auxiliary water tank (3rd auxiliary water tank), 69c Auxiliary water tank separation part (3rd auxiliary water tank) (First isolation part), 69d auxiliary water tank (third auxiliary water tank second isolation part), 72 instrument water tank, 73 pump (second pump), 74 pipe (first pipe), 75 pipe (second pipe), 76 Piping (fourth piping), 77 piping (third piping), 78 auxiliary water tank, 78b inner wall, 78c auxiliary water tank first isolation part, 78d auxiliary water tank second isolation part, 79 pump control part, 82 Instrument water tank, 83 pump (third pump), 86 pipe, 87 pipe, 88 auxiliary water tank, 88b inner wall, 88c auxiliary water tank isolation part, 88d auxiliary water tank isolation part, 89 pump control part, 101a ornamental water tank, 102a Water tank, 104a drain pipe, 105a water supply pipe, 107 plate material, 107a, 107b, 107c, 107d, 108a, 108b hole, 108 plate material, 109 plate material, 111 ornamental water tank, 112 ornamental water tank, 113 ornamental water tank, 114 ornamental Water tank, 125, 126, 196 piping, 148, 149 Auxiliary water tank, 191, 192, 197 Communication pipe, 111, 211 Ornamental water tank, 130 Pump, 141 Drain pipe, 151 Water supply pipe, 161 Ornamental water tank, 162 Water supply port 163 Drainage port 1 63, 261 Bottom water supply / drainage strainer, Protrusion 262, 481 Auxiliary water tank, 481a Cylindrical pipe, 481b Cylindrical pipe, 481c Upper part, 482 Piping, 483 Piping, W1 Groove width, W2 Groove width

Claims (4)

An ornamental aquarium formed of a transparent member for appreciating the organisms grown inside the liquid stored in the aquarium,
An instrument water tank for maintaining the liquid quality of the liquid at a predetermined quality;
A drain pipe functioning as a communication pipe connecting the ornamental water tank and the appliance water tank;
A water supply pipe connecting the ornamental water tank and the appliance water tank;
A pump disposed inside the appliance water tank for circulating the liquid between the ornamental water tank and the appliance water tank,
The bottom of the ornamental water tank and the bottom of the appliance water tank are arranged in contact with one surface of the plate material,
The plate material is
A first hole serving as one opening of the drain pipe connected to the interior of the ornamental water tank;
A second hole serving as one opening of the water supply pipe connected to the interior of the ornamental water tank;
A third hole which is the other opening of the drain pipe connected to the bottom of the instrument water tank;
A fourth hole serving as the other opening of the water supply pipe connected to the pump;
A groove-shaped fifth hole provided inside the plate member connected to the first hole and the third hole;
A groove-shaped sixth hole provided inside the plate member connected to the second hole and the fourth hole;
The ornamental water tank and the appliance water tank through the fifth hole and the sixth hole so that the position of the liquid level of the ornamental water tank is equal to the position of the liquid surface of the appliance water tank. A biological rearing tank that moves liquid between them. The plate material is
Formed by a first plate member, a second plate member, and a third plate member sandwiched between the first plate member and the second plate member,
The bottom of the ornamental water tank and the bottom of the appliance water tank are formed on one surface of the first plate material,
The first plate material is
The bottom of the ornamental water tank has the first hole and the third hole,
Having the second hole and the fourth hole at the bottom of the instrument water tank;
The third plate material is
A groove-shaped fifth hole formed through the third member so as to connect the first hole and the third hole;
A groove-shaped sixth hole formed through the third member so as to connect the second hole and the fourth hole;
The second plate material is
The biological breeding aquarium according to claim 1, wherein the biological breeding aquarium is a plate covering the fifth hole and the sixth hole.   The biological rearing water tank according to claim 1 or 2, wherein a cross-sectional area of the fifth hole is larger than a cross-sectional area of the sixth hole.   The biological breeding aquarium according to claim 1 or 2, wherein a filtration device for removing contaminants contained in the liquid is disposed inside the instrument aquarium.