JPS588810B2 - aquarium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an aquarium used for breeding fish, fish farming, ornamental fish, etc.

Conventional aquariums have a circulation pump device, a filtration tank, a heater device, etc. installed on the upper edge of the opening, and these and their parts obstruct fish viewing from above.

There was also the problem that the appearance of the aquarium was not neat.

Therefore, it is an object of the present invention to provide an aquarium that can improve its appearance and allows easy viewing of fish from above.

The present invention is characterized in that an inner cylinder is erected in an aquarium container made of a transparent material, a pump device is provided at the bottom of the inner cylinder, and a filtration tank is provided above the pump device.

As a result, the pumping capacity does not decrease even if the water level inside the aquarium container decreases, and since the pump device is not placed above the aquarium container, the viewing range from above the aquarium can be expanded, making fish viewing more enjoyable. Become.

A first embodiment of the invention is shown in FIGS. 1 to 17.

That is, as shown in FIGS. 1 to 3, this aquarium is composed of an aquarium section 1 equipped with a filtration and circulation function for breeding ornamental fish, and a mounting table 2 equipped with a heat insulating and driving device. It consists of a cylindrical aquarium container 3 with a bottom that further stores water in a portion 1, and a lid 4 that closes the upper end of the container 3.

The aquarium container 3 is molded from a transparent material such as acrylic resin or glass, and its bottom plate 5 is provided slightly above the lower end surface of the peripheral wall 6, as shown in FIG.

The center part of the bottom plate 5 is composed of a non-magnetic plate 7 made of aluminum, brass, etc., and two circular heat receiving plates 8 made of stainless steel with good heat transfer efficiency are arranged on a diameter line with the center part in between. Further, a sensor heat transfer plate 9 made of the same material is constructed on a diameter perpendicular to the heat exchanger plate 9, and these are tightly attached with a packing material to prevent water leakage.

A partition 10 forming a circulation path is installed on the upper surface of the bottom plate 5.

The partition stand 10 has a truncated cone shape with a height that is extremely low compared to its diameter, and its maximum diameter is slightly smaller than the inner diameter of the aquarium container 3, and when its center is aligned with the center of the bottom plate 5, it A gap of about 1 to 2 mm is created.

The partition 10 can be made, for example, by fitting together a molded body forming a truncated conical top surface and a molded body forming a bottom surface.

The partition table 10 has a pump device hole 11 formed in the center thereof to communicate the upper and lower surfaces thereof, and a plurality of legs 12 . There is.

By installing this partition stand 10 on the bottom plate 5 of the aquarium container 3, a ring-shaped circulation suction port 13 is formed at the peripheral edge of the partition stand 10, and the circulation suction port 13 is formed by the legs 12... A circulation passage 14 is formed that communicates the pump mounting hole 11 with the pump mounting hole 11 .

There is a fifth hole between the pump mounting hole 11 and the non-magnetic plate 7 of the bottom plate 5.
A pump device 15 is attached as shown in the figure.

The cage ring 16 of this pump device 15 forms an inflow passage 1γ at the lower part of its circumferential side, an outflow passage 18 at the upper part,
Bearings 21 and 22 are provided at the top 19 and the bottom 20, and the bearing 2
1 and 22, an impeller 24 is attached to the upper part of the shaft 23, a bracket 23a is attached to the lower part, and driven side permanent magnets 25 are attached to the bracket 23a in a circular arrangement. The lower surface is brought closest to the non-magnetic plate T.

The permanent magnet 25 has a magnetic pole on its lower surface. This pump device 1
5, a permanent magnet 25 is rotated by a magnetic joint, which will be described later, and rotates an impeller 24, thereby sucking water from the groove man passage W and discharging it to the outflow passage 18.

A circular recess 26 is provided on the top surface of the partition stand 10 as shown in FIG.
is formed, and the inner cylinder 21 is removably positioned and installed.

The inner cylinder 27 is made of the same transparent material as the aquarium container 3 and has a cylindrical shape with a bottom.
8 are erected.

The lower end of the discharge pipe 2B communicates with the pump mounting hole 11 of the partition 10 and communicates with the outflow passage 18 of the casing 16.

At the bottom of the inner cylinder 27, sand for aquatic plants and pebbles 29 are piled up.
Aquatic plants 30 are planted on sand 29.

The upper end of the inner cylinder 21 is formed with a plurality of overflow notches 31 and guide grooves 32 as shown in FIG. 8, and has an annular swirling flow generator 33 as shown in FIGS. is placed.

As shown in FIG. 9, the swirling flow generator 33 is integrally formed with a protrusion 35 that protrudes inwardly corresponding to the guide groove 32 on the edge of the central hole 34. are placed in the guide grooves 32 of the inner cylinder 27, so that the swirling flow generator 33 is placed on the upper end of the inner cylinder 27.

The width of the protrusion 35 is smaller than the width of the guide grooves 32, so that the generator 33 can rotate within the range of the guide grooves 32.

An operating lever 36 is integrally formed on the outer edge of the swirling flow generator 33 for the rotational operation.

Further, the notch 31 is provided on the lower side of the periphery of the swirling flow generator 33.
Inverted Y-shaped water guides 37 are formed corresponding to the above, and are arranged near the notches 31 on the upper outer surface of the inner cylinder 21 when the generator 33 is arranged.

An r-over tank 38 is installed on the upper end surface of the inner cylinder 27 as shown in FIGS. 4 and 6.

The filter tank 38 has a cylindrical shape with a bottom as shown in FIGS. 6 and 11, and the bottom 39 has a circular rib 39a protruding from the lower surface to form the inner cylinder 2.
It is fitted and placed in the upper end opening of 7.

Further, a lower end portion of an air introduction pipe 40 having an inner diameter slightly larger than the outer diameter of the discharge pipe 28 passes through the center of the bottom portion 39 .
A communication hole 41 is arranged and formed in a circular shape around the center of 9.
A guide cylinder 42 located inside the circular lip 39a is connected to the lower surface of the bottom portion 39 with a communication hole 41 located inside.

A circular slat 44 with legs 43 is installed on the bottom 39, and an air introduction pipe 40 passes through the center hole of the slat 44.
A discharge pipe 28 passes through the inside of the air introduction pipe 40.

As shown in FIG. 7, the air introduction pipe 40 supports the discharge pipe 28 by forming a large number of guide ribs 40a on the inner surface in the axial direction.

The discharge pipe 28 has a collar 45 near the lower end of the air introduction pipe 40.
A bubble mixing inlet 40b is provided at both the lower end opening of the introduction pipe 40.
is formed.

On the drainboard 44 is a biological filter material 46 such as river sand or non-woven fabric.
A plurality of support protrusions 41 protrude from the upper end of the air introduction pipe 40, and a mesh-like physical filtration filter 48 is placed and supported on the upper surface of the support protrusions 41 to cover the upper end opening of the filtration tank 38. There is.

A central hole 49 is formed in the center of the filter 48, and the upper end of the discharge pipe 28 protrudes.

A step 49a is attached to the edge of the central hole 49, a recess 49b is formed in the step surface, and the baffle plate 50 is attached to the support column 51.
- The inner projecting surface of the lower end is spring-fitted and supported by the recess 49b, and faces above the discharge pipe 28 so as to close the pipe end opening.

A lid 4 is placed on the upper opening of the aquarium container 3 as shown in FIGS. 1 to 4.

As shown in FIG. 4, the lid body 4 has a bracket 52 protruding from one side thereof and a hinge 53, and air circulation holes 54 are arranged in a circular shape on the surface.

A plurality of support springs 55 are provided on the inner surface of the lid body 4, an annular fluorescent lamp 56 is attached to the support springs 55, and a moisture-proof cover 57 with good transmittance is provided to cover the lamp 56. installed.

The upper part of the filtration tank 38 is located at the center of the inner surface of the lid 4.

Water is supplied to the aquarium container 3 by opening the lid 4 of the aquarium section 1 constructed as described above.

The maximum water surface H is near the inverted Y-shaped water guide 37 provided in the swirling flow generator 33.

The fish section is a space surrounded by the inner surface of the aquarium container 3, the outer peripheral surface of the inner cylinder 27, and the tapered surface of the partition stand 10, that is, the aquatic fish section 5.
You can swim freely within 8.

By supplying water to the ice fish section 58, the pump device 15 is submerged in water through the circulation suction port 13, and is in a state where priming water is supplied.

Then, water is circulated within the water tank 1 by operating the pump device 15 (the driving means will be described later).

The circulation route is as shown in FIG. 13 (indicated by arrows in FIG. 4).

That is, when the pump device 15 operates, water is pumped from the pump device 15 to the discharge pipe 28.

At the upper end of the discharge pipe 28, the water collides with the baffle plate 50 and sprays water in all directions, and is sprayed into the r-over tank 38.

In the P filter tank 38 , it passes through a filter 48 , permeates through the R material 46 , passes through the drainboard 44 and reaches the guide cylinder 42 .

At this time, air bubbles are mixed into the flowing water at the air bubble mixing port 40a as in the case of the spray structure due to the flow of water (FIG. 6).

When the water exits the guide tube 42, it falls into the inner tube 27.

In the inner cylinder 2γ, the water overflows the overflow notch 31 and flows into the ice fish portion 58.

At this time, operate the lever 36 of the swirling flow generator 33 to
When the inverted Y-shaped water guide 37 is released from the notch 31 as shown in Figure 0a, water falls vertically downward from the notch 31, and in the ice fish section 58, a flow circulates in a U-shape from the inside to the outside as shown by the arrow in Figure 4. is formed.

Furthermore, when the water guide 37 is positioned as shown in FIG. 10b, the water flows down along the guide taper surface, and a falling component in the tangential direction of the inner cylinder 27 is added. It begins to rotate in a spiral around the outer circumferential surface of.

Furthermore, if the water guide 37 is configured as shown in FIG. 10C, the direction of its spiral rotation will be reversed.

In the ice fish section 58, the ice flows through the circulation passage 14 through the circulation suction port 13 at the bottom and is sucked into the inflow passage 17 of the pump device 15.

In addition, to drain water from the water tank 1, open the lid 4 and use the baffle plate 50.
It is convenient to remove the water, connect a hose (not shown) to the upper end of the discharge pipe 28, operate the pump device 15, drain most of the water, and then tilt the container 3 to drain the water.

In addition, the food provided to the fish is administered by opening the lid 4, and the urine and remaining food excreted by the fish in the ice fish section 58 are collected from the partition table 1.
The water falls onto the tapered surface of 0 and naturally moves to the circulation suction port 13 following the circulating water of the aquarium section 58, and is introduced into the turbid tank 38 by the pump device 15 where it is purified.

That is, in the r-filtration tank 38, solid matter is physically separated by the filter 48.

Next, on the F material 46, aerobic decomposition bacteria and nitrifying bacteria living on the surface perform biological oxidation of organic matter such as feces, leftover feed, and ammonia, and nitrify it to harmless nitrogen compounds such as nitrate nitrogen. be done.

This nitrogen compound becomes fertilizer for aquatic plants. The clean water thus purified flows back to the ice fish section 58.

As a result, fresh water is always maintained in the aquatic fish section 58 for a long period of time.

Dissolved oxygen, which is necessary for fish growth, comes from the carbon dioxide assimilation effect of the aquatic plants 30, from the air bubble mixing port 40a, and from the filter 48.
It is constantly introduced by being mixed in when it falls into the material 46 and mixed in when it is scattered by the baffle plate 50.

Regarding heat retention when breeding tropical fish, which are said to be sensitive to temperature changes, when heating, a stainless steel heat receiving plate 8 provided on the bottom plate 5 of the aquarium container 3 receives heat from the outside (the heating means will be described later). Heat is added to the tank water.

The heat receiving plate 8 is located within the circulation passage 14, and the circulation passage 1
4 flows from the circular circulation suction port 13 to the central inflow passage 1γ in a radial direction linearly or in a spiral shape (when a swirling flow is formed by the water guide 37), so water flows in a part of the passage 14. Even if the water is heated, it is uniformly heated while flowing through the pump device 15 that collects the water and the discharge pipe 28, and when it is supplied to the ice fish section 58, the temperature is completely distributed.

Therefore, the temperature gradient allows the fish to be heated without affecting them.

On the other hand, the sensor heat transfer plate 9 controls the temperature to keep the water temperature constant.
It is controlled by a temperature sensor, which will be described later.

Illumination by the fluorescent lamp 56 is provided by the moisture-proof cover 57, the water surface H,
The aquatic plants 30 and fish F are illuminated by the transmission and reflection from the inner cylinder 27 and the peripheral wall 6 of the aquarium container 30, which are made of transparent materials, and can be viewed more brightly than the outside of the aquarium section 1.

The light heat of the lamp is radiated through the air circulation holes 54 of the lid 4.

Next, the mounting table 2 will be explained.

As shown in FIGS. 3 and 4, the mounting table 2 has a hollow cylindrical shape with a height smaller than its diameter, and has a positioning rib 59 on the periphery of the upper surface that fits inside the lower end of the peripheral wall 6 of the water tank 1. are formed, and holes 61 to 64 are formed in the upper plate 60 of the mounting table 2 corresponding to the non-magnetic plate 7 of the bottom plate 5 of the aquarium container 3, the stainless steel heat receiving plate 8, and the sensor heat transfer plate 9. .

A drive device 65 is provided in the hole 61, a heater device 66 is provided in the hole 62, a fluorescent lamp ballast 6T is provided in the hole 63, and a temperature sensor 68 is provided in the hole 64.

First, the drive device 65 includes a motor 69 and a drive-side permanent magnet 71 that is attached to the motor shaft 70 and rotates, as shown in FIG.
The upper part of the permanent magnet 71 is a thin driving head 7.
It is waterproof coated with 1a.

The drive head 71a of the drive device 65 is located above the hole 61 on the plate 60.
The driving device 65 is exposed to the outside, and as shown in FIG. 4, the entire drive device 65 is suspended and supported by the upper plate 60 by a tension spring 72, and the head 71a is floated from the upper plate 60 by being positioned by a protrusion 65a. .

The beater device 66 includes a positive temperature characteristic heater covered with a waterproof heater head 66a that is electrically insulating and has a low thermal resistance, and is suspended from the upper plate 60 by a tension spring 73, positioned by a protrusion 66b, and the head 66a is inserted into the hole 62. It's more upbeat.

Similarly, the stabilizer 67 is waterproofly coated on the head 14 and floats from the hole 63.

The ballast 67 is used as an auxiliary heating source for the aquarium section 1.

Furthermore, the temperature sensor 68 has a heat insulating material 76 lined on the inner surface of the sensor housing 15 as shown in FIG.
The sensor housing 75 is suspended by the tension spring 79, positioned by the protrusion 75a, and the sensor head 77 is
is floating from the hole 64.

As shown in FIG. 3, a drain hole 80 is formed in the top plate 60, and the drain hole 80 passes through a bottom plate 82 with the upper end of a guide tube 81 connected thereto as shown in FIGS. 15 and 16.

As shown in FIG. 3, a protruding part 83 is provided on one side of the mounting table 2, a recessed part 84 is formed on the upper surface of the protruding part 83, and a receiving blade 85 for an outlet or the like is buried in the bottom of the recessed part 84. .

The lower end of the illumination support column 86 is fitted into the recess 84 and erected therein.

The lighting support 86 is inserted into the lower end surface and has a plug blade 8γ such as a plug.
is provided, and when the stopper blade 81 is fitted onto the support 86, the blade 81
5 and disconnect it to make an electrical connection.

A cord 88 passes through the pillar 86 and is connected to a socket 89 of the fluorescent lamp 56 of the lid 4 from the upper end as shown in FIG.

The upper end of the support column 86 is still connected to the hinge 53 of the lid body 4, and the lid body 4 is rotatably supported by the support column 86.

As shown in FIG. 3, a cutout recess 90 for cleaning the water tank separation basin is formed in the upper side of the mounting table 2.

A hole is formed in the side surface of the mounting table 2 as shown in FIGS. 3 and 4, and a cord pusher 91 is attached thereto.
2 is inserted.

Further, a heater switch 93 and a lamp switch 94 are attached to the side surface.

Furthermore, as shown in FIG. 4, a limit switch 95 is disposed below the heater device 66 within the range in which the heater device 66 moves.

Note that 96 is a leg of the mounting table 2, 97 is an air circulation hole, and 98 is an electric block.

A circuit diagram of the electrical wiring for this water tank is shown in FIG.

That is, a lighting circuit C1 including a fluorescent lamp 56, a glow lamp 99, a noise prevention capacitor 100, a ballast 67, and a lamp switch 94, a heater of a heater device 66, a control circuit 101 that operates under the control of a temperature sensor 68, and a heater. A heater circuit C2 including an operation notification lamp (using a pilot lamp) 102 and a heater switch 93, and a motor circuit C3 of the motor 69 are each connected to a power source E (power cord 92).

A power-on notification lamp (using a pilot lamp) 103 is further connected in parallel to the power cord 92, and the circuit C
A limit switch 95 is connected between 1 to C3 and the power supply side.

With this circuit configuration, when the water tank section 1 is placed on the mounting table 2, the head 66a floating from the upper plate 60 of the mounting table 2 is attached to the non-magnetic plate 7 of the bottom plate 5, the heat receiving plate 8, and the sensor heat transfer plate 9.
, 71a, 74, and 77 are in elastic contact with each other, and the permanent magnets 25, 71 are magnetically coupled to each other on the non-magnetic plate 7, and the heat receiving plate 8
The heat exchanger plate 9 and the heads 66a, 74, and 17 are thermally coupled.

At the same time, the heater device 66 is pushed by the heat receiving plate 8 and moves downward, turning on the limit switch 95.

As a result, when the power cord 92 is connected to a power source,
The motor circuit C3 is closed, the motor 69 is driven, the permanent magnet γ1 is rotated, and the permanent magnet '25 of the water tank 1, which is magnetically coupled thereto, is driven to rotate the impeller 24 and operate the bomb.

Next, when the lamp switch 94 is turned on, the fluorescent lamp 56 is turned on.

At the same time, the stabilizer 67 generates heat, heats its head 14, transfers the heat to the heat receiving plate 8, and supplementally heats the water flowing through the circulation passage 14.

Also, when the heater switch 93 is turned on, the heater 6
6 generates heat and heats the head 66a, which is a heat transfer plate, and the heat is transferred to the heat receiving plate 8 to heat the water flowing through the circulation passage 14.

Since the heater has positive temperature characteristics, overheating is self-controlled.

On the other hand, the temperature of the water flowing through the circulation passage 14 is transferred to the sensor heat transfer plate 9 and transmitted to the sensor head 77, and this temperature is detected by the temperature sensor 68.

In this case, since the sensor head 17, the heater head 66a, and the head 74 are located in a direction perpendicular to the water flow direction in the passage 14, the heated water is not immediately detected, and the circulation path always keeps the aquatic part 58 water temperature has been detected.

Note that FIGS. 15 and 18 show modified examples of the arrangement of the heater device 66 and the temperature sensor 68, in which both are arranged in symmetrical positions with the drive device 65 at the center, and the heat of the ballast 67 is transferred to the water. Although it is not used for heating, even in this arrangement, the water temperature in the aquatic part 58 is constantly detected by the sensor 68 because the water flows concentrated in the central part of the driving device 65.

Further, due to this circuit configuration, the limit switch 95 is not turned on unless the water tank 1 is positioned and placed on the mounting table 2.

The features of this tank are explained below.

That is, (1) by using a magnetic coupling, the water tank section 1 containing the pump device 15 and the mounting table 2 containing the drive device 65 of the pump device 15 are completely separated with respect to water; Because the and are removable,
The problem of electric leakage and electric shock has been resolved, and the water in the tank 1 has been changed.
There is no need to consider electrical parts during cleaning, making it safe and easy to operate.

In particular, by providing a cutout recess 90 in the mounting table 2 and supporting the bottom of the aquarium container 3 by inserting a hand into the cutout recess 90, the aquarium container 3 can be easily detached and separated, and the appearance is also superior to that in the case where a handle protrudes from the aquarium container 3. ing.

Furthermore, by providing a positioning rib 59 on the upper peripheral edge of the mounting table 2 that fits inside the lower end of the peripheral wall 6 of the aquarium section 1, it is possible to prevent drops that have traveled along the outer surface of the aquarium container 3 from entering the upper surface of the mounting table 2. It can be prevented.

By providing the drain hole 80 on the top surface of the mounting table 2, water spilled on the top surface can be safely removed.

(2) Since the inner cylinder 27 is provided inside the aquarium container 3 to form the aquatic fish section 58, and the r tank 38 and the pump device 15 are provided above and below the inner cylinder 21, respectively, fish can also be seen from above outside the aquarium section 1. The viewing area can be expanded, and the aesthetic appearance is improved.

Since the upper part of the container 3 is open, it is easy to administer food, and since water is circulated within the aquarium 1, there is no splashing of water to the outside and it is difficult for water to splash on the container.

In particular, a partition 10 is provided at the bottom of the aquarium container 3, and this forms a narrow circulation suction port 13 and a circulation passage 14, so the flow velocity passing through the part B is high, and dirt, feces, etc. are reliably removed from the overflow tank 38. It can be transferred to

Further, the heating of the water through the heat receiving plate 8 can be quickly transmitted throughout the tank.

Note that the aquarium container and inner cylinder may be made of square bamboo.

(3) By providing the circulation suction port 13 at the bottom which serves as an outlet for passing the tank water of the aquatic fish section 58, the aquatic fish section 58
It is possible to reliably transport garbage that has sunk to the bottom of the water.

This is particularly effective because the upper surface of the partition table 10 is tapered toward the circulation suction port 13.

This reduces the amount of dirt adhering to the walls and reduces the number of water changes.

Furthermore, the design can be changed so that the suction port 13 is directed toward the tapered surface of the partition 10 as shown in FIG. 19, so that the water flow can be easily guided to the circulation passage 14.

Also, if you do this, the fish will be attracted to the circulation suction port 13 due to their habit.
This makes it difficult for people to get close to the body, which prevents people from getting sucked into it and dying in an accident.

As shown in FIGS. 20 and 21, the suction port 13 also has radial grooves 13' (width approximately 1 to 2 m
m, length of approximately 5 to 15 mm) to promote the movement of solid matter such as feces and leftover feed.

(4) Since the baffle plate 50 is detachably provided at the upper end of the discharge pipe 28, the water discharged from the discharge pipe 28 is removed from the baffle plate 50.
It collides with 0, scatters in all directions, and falls onto the F tank.

At this time, the water is sprinkled, so there is an effect of taking in dissolved oxygen and a visual effect.

In particular, when the surface of the baffle plate 50 that the water collides with has an uneven shape, the visual effect becomes remarkable.

(5) A stainless steel sensor heat transfer plate 9 is formed on the bottom plate 5 of the aquarium container 3, and a sensor head 77 with good heat transfer is formed on the outer surface of the stainless steel sensor heat transfer plate 9.
is arranged, the sensor element 78 is arranged through this, and the element T
Since the periphery of the aquarium 8 is covered with a heat insulating material 16, only the water temperature in the aquarium container 3 can be detected, and even if the water level drops, it can be detected.

Therefore, compared to the case where the sensor is placed underwater, there is no need to consider waterproofness, the beauty of the aquatic fish area is not spoiled, and the reliability of the sensor is improved.

Note that the heat transfer plate 9 does not need to be made of a metal material, and a part of the resin bottom plate 5 may be made as thin as possible to improve thermal efficiency.

(6) Since the air mixing inlet 40a is formed in the guide cylinder 42 by the air introduction pipe 40, air bubbles are mixed in when water enters the inner cylinder 27, and there is a visual effect due to the intake of dissolved oxygen and the movement of the air bubbles.

(7) By providing the water guide 37 on the exit side (aquatic fish section side) of the overflow notch 31 that communicates the inner cylinder 27 with aquatic plants and the aquatic fish section 58, a swirling flow can be formed in the aquatic fish section, and a countercurrent flow of the fish It is possible to create an environment that is in line with people's habits.

In particular, if the lever 36 is used to change the direction of the swirling flow or create a state in which there is no swirling flow, the swimming of the fish can be arbitrarily controlled.

(8) Since the neck-shaped fluorescent lamp 56 suspended from the lid 4 is disposed above the aquatic fish section 58, the aquatic fish section 58 and the aquatic plants 30 are efficiently illuminated through the water surface H.

In this case, since the swell tank 38 is located in the center of the fluorescent lamp 56, space can be used effectively and compactness can be achieved.

(9) A circulation suction port 13 is provided at the bottom of the aquarium section 58, and the pump device 15 pumps wastewater from the aquarium section 58 into the r-filtration tank 3 at the upper part.
In order to lead to step 8, garbage, etc. should be promptly collected and discarded.

In particular, since the P tank 38 is supported by the inner cylinder, the discharge pipe 28
This allows for even faster r-passing.

The aquatic plants 330 in the inner cylinder 27 can be made to look larger due to the lens effect of the transparent cylinder, and their value as interior goods can be increased.

aO) Aquatic plants are provided in the inner cylinder 27 and separated from the aquatic fish part 58,
Circulating water flows from the inner cylinder 27 to the aquarium section 58, so dead leaves and cut branches of aquatic plants 30 flow through the aquatic section 58.
8 and is stopped within the inner cylinder 27.

Therefore, if they enter the pump device 15, circulation suction port 13, or circulation passage 1 and become clogged, the pump will not malfunction.

Further, there is little contamination of the aquatic fish section 58, and the garbage collection efficiency is also good.

Furthermore, fresh water enriched with organisms in the r-filtration tank 38 is supplied to the aquatic plants 30. Nutrients such as nitrogen compounds are 30% of aquatic plants.
It becomes a fertilizer and suppresses abnormal growth of phytoplankton.

In addition, dissolved oxygen is absorbed into the aquatic fish part 5 by the carbonic acid assimilation effect of the aquatic plants 30.
8.

Since the inner cylinder 21 can be attached to and detached from the partition stand 10,
The aquatic plants 30 are also easy to care for.

In addition, as shown in FIG. 22, a communication hole (small diameter) 105 is formed at the bottom of the inner cylinder 27 to lead to the aquatic plant 30, thereby guiding nutrient-rich water to the roots of the aquatic plants 30 to provide nutrients to the roots. It can be designed to give

(11) By going through the water circulation process as shown in FIG. 13, water purification and oxygen supply can be efficiently achieved.

In the filtration tank 38, physical filtration and biological filtration are separated, and physical filtration is performed first, so that biological filtration is less likely to be clogged with dirt or the like.

At the same time, oxygen can be taken in while the water falls into the biological filtration system.

Since the waste tank 38 is placed on the upper end of the inner cylinder 27, it can be removed and cleaned easily.

Since water is evenly distributed to the sludge tank 38 by the baffle plate 50, sloughing is performed evenly.

(12) The heads 66a, 71a, 74.77 are mounted on the mounting table 2.
It floats from the upper surface of the tank, and when the aquarium section 1 is placed thereon, it will surely come into close contact with the bottom plate 5.

Therefore, magnetic coupling and heat transfer are ensured.

Therefore, on the contrary, precision is not required for the connection between the water tank part 1 and the mounting table 2.

(13) The aquarium container 3 is made of a transparent material such as acrylic resin that is heat conductive, and the bottom plate 5 is made of stainless steel heat receiving plates 8 and 9 that are heat conductive and are in close contact with the heads 66a and 74. Good accuracy in heating and detecting water temperature.

Also, since it is located in a position that is difficult to see from the outside, it does not spoil the appearance.

(14) The upper surface of the stainless steel heat-receiving plate 8 is covered with a partition stand 10, which prevents fish from coming to the upper surface of the heat-receiving plate 8, thereby protecting the fish.

Moreover, cleaning can be easily performed by removing the partition stand 10.

(15) Since the stabilizer 67 is used as an auxiliary water temperature heating source, heat is effectively utilized.

Therefore, a heat dissipation space for the ballast 6T is unnecessary.

(16) The power cord 92 is inserted into the mounting table 2, the receiving blade 85 for an outlet etc. is provided on the mounting table 2, and the lighting support 8
A current is supplied to the lamp 56 of the lid body 24 via the lamp 6 .

Therefore, the external wiring is simple and does not get in the way, improving the aesthetic appearance.

Note that even if only an outlet 85' is provided and the lamp cord is drawn out to the lid body 4 and connected as shown in FIG. 118, it is simpler than the case where the cord is directly connected to the lid body from the power source.

A second embodiment of the invention is shown in FIGS. 23 to 26.

This water tank differs from the first embodiment in the following points.

That is, holes 106 are formed in the heat transfer part and magnetic coupling part of the bottom plate 5 of the aquarium container 3, and hooks 107 are formed in the peripheral parts of the nonmagnetic plate I, the heat receiving plate 8, and the sensor heat transfer plate 9, respectively. , with an O-ring 108 interposed between them.

The inner cylinder 2T and the partition stand 10 are integrally formed to reduce the number of parts.

A fish intrusion prevention block 109, such as a pebble, is installed between the periphery of the partition stand 10 and the inner bottom of the aquarium container 3.

A pump device 15' is installed from the bottom of the inner cylinder 21 to the bottom of the partition stand 10.

In the pump device 15', a vertical shaft 23 is supported at its intermediate portion by a bearing 21', an impeller 24 is provided at the upper end, and a driven permanent magnet 25 is attached at the lower end.

A protrusion 110 is provided at the center of the lower end surface (rotation center) of the permanent magnet 25 to allow the non-magnetic plate to support the thrust load.

A dewatering tank 38' is installed inside the inner cylinder 27.

The filter tank 38' has a cylindrical outer diameter smaller than the inner diameter of the inner cylinder 27, and its lower end is attached to the pump casing 16.

Further, the filtration tank 38' is integrally formed with the discharge pipe 28.
8 is communicated with the outflow passage 18 of the pump device 15l.

The filter tank 38' has a bottom above the pump device 15',
A drain port 111 is formed in the side wall near the drain port 111 and communicates with a gap 112 inside the inner cylinder 27 .

A dust guard 113 is removably attached to the upper end of the wastewater tank 38'.

The dust remover 113 is in the form of a closed container and is provided with a communication port 114 communicating with the upper end opening of the discharge pipe 28 and a net (filter) 115 covering the upper end opening of the filtration tank 38' at the bottom.

A transparent inner lid 116 that closes the upper opening of the aquarium container 3 is removably attached, and a handle 116a is attached to the central portion that covers the dust cover 113.

A stabilizer 67 is attached to the center of the lid body 4 containing the lamp 56.

In the water tank section 1, the circulation path includes a pump device 15', a discharge pipe 28, a mesh 115, a filter tank 38', and a filter tank 38'.
through the drainage port 111 of the inner cylinder 27, through the overflow notch 31 of the inner cylinder 27 to the fish section 58, and through the fish intrusion prevention block 109 of the circulation suction port 13 to the circulation passage 14 and the pump device. It is 15'.

In the mounting table 2, a motor cooling fan 117 is attached below the drive-side permanent magnet 71 of the drive device 65.

Further, a receiver 118 is formed for the heater device 66 and the temperature sensor 68, and a four part 119 is formed on the outer side of the upper opening of the receiver 118.

On the other hand, a protrusion 120 is formed on the heater device 66 and the temperature sensor 68 to fit into the recess 119 and to be able to slide up and down within the recess 119. A compression coil spring 121 is interposed in the upper plate 60 to urge the heads 66a and 77 upward within the range defined by the recess 119.
It's more upbeat.

Limit switch 95 is installed between the bottom of temperature sensor 68 and the bottom of its receptacle 118.

As described above, in the aquarium of the present invention, the inner cylinder is installed upright in the aquarium container, the pump device is installed at the bottom of the inner cylinder, and the drainage tank is installed at the top of the inner cylinder, so that the pump device is installed at the bottom. By positioning the upper part of the aquarium container, there are fewer obstructions to fish viewing, expanding the viewing area, making it easier to view and administering food, and making the tank look cleaner.
Moreover, it has the effect that the water pumping capacity does not decrease even if the water level in the tank decreases.

In particular, if a partition is interposed between the inlet of the pump device and the lower part of the aquarium container to form a circulation passage that forms a flat space, the flow velocity in the passage from the aquarium container to the pump device will be reduced. This makes it possible to reliably transport solid waste such as feces, and the circulation passage is free from fish intrusion.
Therefore, a heat receiving plate heated by a heater can be installed in a part of the passage.

Moreover, since the water is collected in the pump device, heat dispersion is promoted and the water temperature can be quickly stabilized.

It is also possible to install a sensor heat transfer plate for a temperature sensor for detecting water temperature.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the first embodiment of the present invention, Fig. 2 is a perspective view of the first embodiment with the lid open, Fig. 3 is an exploded perspective view of Fig. 1, and Fig. 4 is a sectional view of Fig. 1. , Fig. 5 is an enlarged sectional view of the pump device, Fig. 6 is an enlarged sectional view of the f tank, and Fig. 7 is its
1-2 line sectional view, Figure 8 is an exploded perspective view of the inner case, Figure 9 is a perspective view of the swirling flow generator, Figure 10 is a schematic diagram showing its operating state, Figure 11 is an exploded perspective view of the overflow tank. FIG. 12 is a perspective view of the baffle plate, FIG. 13 is a block diagram showing the water circulation process, FIG. 14 is a sectional view of the temperature sensor, and FIG. 15 is only about the arrangement of the temperature sensor and heater device. A plan view of a modified mounting table, FIG. 16 is a sectional view taken along the line XVI-XVI, FIG. 17 is an electric circuit, FIG. 18 is a perspective view of a modified mounting table, and FIG. 19 is a circulation diagram of the water tank. A partial cross-sectional view showing the suction port, FIG. 20 is a partial cross-sectional view of another modification of the circulation suction port,
FIG. 21 is a longitudinal sectional view thereof, FIG. 22 is a partial sectional view of a modified example of the inner cylinder, and FIG. 23 is a perspective view of a second embodiment of the present invention.
FIG. 24 is a side view thereof, FIG. 25 is an exploded perspective view thereof, and FIG. 26 is an enlarged sectional view of FIG. 23. 1... Water tank section, 2... Mounting stand, 8... Heat receiving plate, 9
...Sensor heat transfer plate, 14...Circulation passage, 15.1
5'... Pump device, 27... Inner cylinder, 38... Filtration tank.

Claims (1)

[Claims] 1. An aquarium container made of a transparent material, an inner cylinder installed upright within the aquarium container, and a pong device installed at the bottom of the inner cylinder to suck in tank water from the aquarium container; A water tank including a filtration tank installed above a pump device in an inner cylinder to purify and circulate wastewater supplied from the pump device.