Abstract:
The invention relates to an aquarium comprising a water tank and a sieve that is arranged in the water tank; the sieve comprises a filter and a driving mechanism supplying power to the filter. The filter is disposed in the internal part of a container of the water tank, while the driving mechanism is disposed outside the container of the water tank. Consequently, the invention can effectively allow the power source of a conducting wire of the sieve of the aquarium to avoid getting into the container of the water tank; in addition, it can eliminate the possibility of electric leakage of said conducting wire underwater in the container of the water tank.

Description:
BACKGROUND OF THE INVENTION 
   I. Field of the Invention 
   The present invention refers to an aquarium, especially to a fish tank that applies a sieve to achieve tank cleaning and water purification. 
   II. Description of the Prior Art 
   With improvements in people&#39;s living conditions, embellishments or adornments of a house and/or a public place has been causing more and more concerns to the general public; for example, an aquarium can become an adornment to a space. Nowadays, an aquarium is used to display aquatic creatures, such as goldfish; therefore, an aquarium is usually equipped with a sieve therein to achieve the objectives of clarifying water in the tank and creating a favorable living environment for aquatic creatures. 
   Nevertheless, most conventional aquariums have the same drawbacks of hidden dangers to people who love fish and aquatic creatures and/or are unsightly while the aquarium tank is under water purification. Specifically, as shown in  FIG. 16 , an aquarium  70  has a sieve  71  entirely placed under water in a water tank  72  thereof. Once there is a leakage of electricity under water resulting from the electric connection of a conducting wire  711  of the sieve  71 , this may cause the death of aquatic creatures therein, and is a hidden danger to a human&#39;s life as well. In addition, said conducting wire  711  is usually exposed to be accessible to people, so it can easily cause the danger of electric leakage to people. Furthermore, the conducting wire  711  is exposed outside the water tank  72 , which makes for an unsightly appearance for the aquarium  70 . 
   Another aquarium  80  as shown in  FIG. 17  has a sieve  81  entirely disposed outside a water tank  82 ; the sieve  81  is connected to the water tank  82  through a water-inlet tube  811  and a drain pipe  812 . The installation of both the water-inlet tube  811  and the drain pipe  812  results in a poor appearance of the aquarium  80 ; likewise, the electric wire connection of a conducting wire  813  of the sieve  81  is on the lateral side of the water tank  82 , thereby enabling said conducting wire  813  to be exposed to people, resulting in a hidden danger of electric leakage to anyone nearby. Moreover, in the event that the drain pipe  812  accidentally comes off outside the tank resulting in outwards-flowing water, such an incident may cause death of aquatic creatures in the tank and cause damage to household articles. 
   Another conventional aquarium  90  as shown in  FIG. 18  has a similar structure to the aquarium  80  as shown in  FIG. 17 . Said aquarium  90  has a sieve  91  fastened on top of the lateral wall of a water tank  92  thereof through a hook  911 . Likewise, the installation of both the hook  911  and a water-inlet tube  912  makes a poor appearance for the aquarium  90 ; meanwhile, the electric connection of a conducting wire  913  of the sieve  91  is on a lateral side of the water tank  92  so that the possibility of electric leakage may cause death of aquatic creatures in the tank or cause damage to surrounding people once the sieve is dropped into the tank. 
   To solve the foregoing drawbacks of said conventional aquariums (fish tank structures), the invention is disclosed hereafter. 
   SUMMARY OF THE INVENTION 
   The main objective of the present invention is to provide an aquarium that is able to effectively prevent a conducting wire of a sieve in the aquarium from getting into the water tank, so as to eliminate the possibility of electric leakage of said conducting wire underwater in the water tank and to enhance the appearance of the aquarium. 
   To achieve said objectives, the aquarium of the invention comprises a water tank and a sieve that is disposed in the water tank. The sieve comprises a filter and a driving mechanism for supplying power to the filter. The characteristic of the invention lies in that the filter is arranged in the internal part of a container in the water tank, while the driving mechanism is disposed outside said container of the water tank. 
   The filter of the invention has a magnetic movable member, while the driving mechanism is a device for generating magnetism and transforming the magnetic pole. 
   The magnetic movable member is a rotary axle or an impeller. 
   Generally, the water tank is a transparent container. 
   The water tank has a columnar body arranged on the wall thereof and extended inwards toward the inner part of the container; the columnar body has a magnetic rotary axle disposed therein and is enclosed by the driving mechanism. The driving mechanism is a silicon steel with a coil winding around or a magnetic device for transforming the magnetic pole; the magnetic rotary axle is driven to rotate by the driving mechanism that is disposed outside the container. 
   The water tank has a columnar body arranged on the wall thereof and extended outside the container; the columnar body is able to be enclosed by a magnetic impeller; the columnar body has the driving mechanism arranged therein; the driving mechanism is an electric machinery having a rotary axle disposed on the top of a rotor thereof; the magnetic impeller is driven to rotate by the rotary axle on top of the electric machinery. 
   The water tank has a device with a magnetic slice disposed on the wall thereof; the container has the driving mechanism arranged outside thereof; the driving mechanism is a device for transforming the magnetic pole, the magnetic slice is driven to move up and down due to the intermittent magnetism generated by the driving mechanism. 
   The columnar body that is arranged on the wall of the water tank extended inwards or outwards from the container and the water tank are both made in one piece. 
   A diverter is installed on the magnetic impeller, comprising a water inlet and a water discharge disposed thereon. 
   A diverter is installed on the magnetic impeller of the rotor, comprising a water inlet and a water discharge disposed thereon. 
   A diverter is installed on the magnetic slice, comprising a water inlet and a water discharge disposed thereon. 
   Said water inlet and said water discharge of the diverters connect the sieve containing filter material therein and an apparatus for the diversion of water flow. 
   The water tank has a hollow portion on the wall thereof extended inwards, enabling a lighting component or a heater to be installed therein. 
   The water tank has an interface arranged on the wall thereof for connecting ornaments. 
   Differing from conventional aquarium structures, the aquarium of the invention has the filter thereof disposed in the internal part of the container of the water tank, while the driving mechanism is disposed outside the container of the water tank. Consequently, the invention is able to effectively avoid the power source of a conducting wire of the sieve of the aquarium from getting into the container of the water tank; in addition, eliminate the possibility of electric leakage of said conducting wire underwater in the container of the water tank. Moreover, the conducting wire is placed in a place not easily accessed by people to ensure human safety. At the same time, it provides the necessary power supply for other electric components and other power related components are well arranged to enhance the overall appearance of an aquarium. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a three-dimensional perspective view showing a preferred embodiment of an aquarium of the invention; 
       FIG. 2  is a partial three-dimensional perspective view showing a water tank of the invention as shown in  FIG. 1  comprising a columnar body disposed therein; 
       FIGS. 3A and 3B  are three-dimensional rear perspective views showing an apparatus for the diversion of water flow with a rotary axle of a magnetic impeller or a magnetic rotor; 
       FIG. 4  is a cross-sectional perspective view showing the assembly of a filter and a driving mechanism as shown in  FIG. 1 ; 
       FIG. 5  is an enlargement showing VI drawing in  FIG. 4 ; 
       FIG. 6  is a three-dimensional perspective view showing the complete assembly of the aquarium of  FIG. 1 ; 
       FIGS. 7-9  are other partial perspective views showing a water tank comprising a lighting component, a heater, and ornaments; 
       FIGS. 10-14  are three-dimensional rear perspective views showing various embodiments of the aquarium of the invention; 
       FIG. 15  is another cross-sectional perspective view showing the assembly of the driving mechanism of the invention; 
       FIG. 16  is a three-dimensional perspective view showing another conventional aquarium; 
       FIG. 17  is a three-dimensional perspective view showing yet another conventional aquarium; and 
       FIG. 18  is a three-dimensional perspective view showing one more conventional aquarium. 
   

   DESCRIPTION OF THE PREFERRED EMBODIMENT 
   Further aspects, objects, and desirable features of the invention will be better understood from the detailed description and drawings that follow in which various embodiments of the disclosed invention are illustrated by way of example. 
   With reference to  FIG. 1 , the aquarium of the invention  10  comprises a water tank  20  and a sieve arranged in the water tank. The sieve comprises a filter  30  and a driving mechanism  40  supplying power to the filter  30 . The filter  30  is disposed in the inner part of a container (water containing portion)  21  of the water tank  20 . The driving mechanism  40  is disposed outside the container  21  of the water tank  20 . Therefore, a conducting wire  41  of the driving mechanism  40  is not necessarily placed in the inner part of the container  21  of the water tank  20  without being easily accessed by people, so as to avoid the incidents of electric leakage of the conducting wire  41 . Meanwhile, the conducting wire  41  is disposed outside the container  21  of the water tank  20  for providing the necessary power supply for other power related components. In addition, the water tank  20  can be made of transparent material for easy observation from the outside. 
   With reference to  FIGS. 1 ,  2 , and  3 A, the container of said water tank  20  can be made in a rectangular or any other cubic form; the container in this preferred embodiment is of a rectangular form. The water tank  20  has a member disposed on the floor of the container  21 , and which defines a recess. The member may have a columnar body  24  in any form or shape arranged in the container  21 . The columnar body may be extended upwards inside the container  21  (or extended downwards outside the container  21 ) from the bottom  22  thereof. The preferred embodiment shows that the columnar body  24  is able to extend upwards inside the container  21  of the water tank  20  from the location of a sidewall  23  near the bottom  22  or near the center of the container (or extended downwards outside the container  21  as shown in  FIGS. 10 and 13 ). Moreover, the preferred embodiment shows the best practice of locating the columnar body  24  at a corner below the water tank  20  in the shape of a rectangle. 
   The columnar body  24  has an installed surface  241  horizontally arranged on the top thereof for the installation of the filter  30 . The installed surface  241  has a round spindle hole  242  with a cross-section vertically and downwardly disposed; the spindle hole  242  has the underside on the center thereof set a locating slot  243  (as shown in  FIG. 4 ). 
   The water tank  20  has the underside  221  on the bottom  22  thereof set a containing slot  244  vertically and upwardly extending inside the columnar body  24  and surrounding the spindle hole  242 ; the containing slot  244  can be vertically set from the location on the surface of the sidewall  23  near the bottom  22  of the water tank inwardly or outwardly. 
   With reference to  FIGS. 1 ,  4 , and  5 , the preferred embodiment shows that the driving mechanism  40  is made of silicon steel with a coil  42  winding around (or a magnetic device for transforming the magnetic pole); the coil  42  and the conducting wire  41  are connected together. The containing slot  244  is disposed outside the container  21  of the water tank  20 , so that the conducting wire  41  of the coil  42  is not necessarily placed inside the container  21  of the water tank  20 , but a place not easily accessible to people, in order to avoid the danger of electric leakage of the conducting wire  41 ; meanwhile, the conducting wire  41  is placed outside the container  21  of the water tank  20 , providing the necessary power supply for other electric related components. 
   With reference to  FIGS. 1 to 6 , the preferred embodiment shows that the filter  30  comprises a casing  31  in the shape of a rectangle containing a filter material  32  inside thereof and is set upright on the installed surface  241 ; a diverter  33  is disposed on the bottom of the casing  31  and envelops the filter material  32  inside the casing  31 , and a rotary axle  34  possesses an impeller  341 . The casing  31  has an opening  3351  set on the sidewall  313  thereof piercing through the container  21  of the water tank  20 , enabling water to flow into the container  21  of the water tank  20 . The filter material  32  has a channel  321  vertically passing through the center thereof. The diverter  33  is in the shape of a rectangle; a diversion room  331  has a diversion nozzle  3321  set on the center of a top wall  332  thereof in the sleeve shape extending upwards; the diversion room  331  has a through-hole  3331  set on the center of a bottom wall  333  thereof. The sidewall  313  of the casing  31  and the sidewall  334  of the diverter  33  have water discharges  3131  and  3341  horizontally arranged thereon or can connect an apparatus for the diversion of water discharge  43 . The rotary axle  34  is a magnetic movable member contained in the spindle hole  242 . A locating shaft  342  extends downwards from the center of the surface of the lower end thereof and is contained in such a way so as to allow it to rotate in the locating slot  243 . A coupling column  343  extends upwards from the center of the surface of the upper end thereof. The coupling column  343  pierces through the through-hole  3331 . The impeller  341  is horizontally fixed on the coupling column  343  and pierces through the end of the through-hole  3331 , thereby enabling water in the diversion room  331  to flow out through the water discharges  3131  and  3341  via the rotation of the impeller or through the apparatus for the diversion of water discharge  43 . 
   The rotary axle  34  is contained in the spindle hole  242 , enabling the rotary axle  34  to be placed on the magnetic center of the silicon steel. When the coil  42  of the silicon steel passes through the conducting wire  41  which connects the external alternating current to generate alternating current magnetism and drive the rotary axle  34  to rotate, so as to drive the impeller  341  to rotate, thereby enabling water in the diversion room  331  to flow out through the water discharges  3131  and  3341  or through the apparatus for the diversion of water discharge  43 . 
   With reference to  FIGS. 1 to 6 , the driving mechanism  40  is disposed in the containing slot  244  outside the container  21  of the water tank  20 , the filter  30  is disposed on the installed surface  241  on the top of the columnar body  24  in the container  21  of the water tank  20 . When the silicon steel is electrified through the coil of the conducting wire  41 , an alternating current is generated to drive the rotary axle  34  to rotate, so as to drive the rotation of the impeller  341 . Consequently, water in the container  21  of the water tank  20  flows into an opening  3351  of the casing  31 , enters a channel  321  of the filter material  32  to process water filtration; purified water enters in the diversion room  331  through a diversion nozzle  3321  and then flows out through the water discharges  3131  and  3341  or through the apparatus for the diversion of water discharge  43 ; thus, the process of water filtration and circulation in the container  21  of the water tank  20  is completed. 
   The driving mechanism  40  and the filter  30  are respectively disposed outside and inside the container  21  of the water tank  20 ; therefore, the conducting wire  41  of the driving mechanism  40  is not necessarily placed in the container  21  of the water tank  30 , but a place not easily accessible to people, so as to avoid the danger of electric leakage of the conducting wire  41 ; meanwhile, the conducting wire  41  is placed outside the container  21  of the water tank  20 , providing power supply for other electric related components. 
   With reference to  FIGS. 6 to 9 , the water tank  20  has concave sections  251  and  252  set in the concave portion of the container  21  on the bottom thereof, or has convex sections  261  and  262  upwardly set on the bottom of the container  21 ; the concave sections  251  and  252  or the convex sections  261  and  262  are able to contain other components inside thereof. In this preferred embodiment, the concave sections  251  and  252  are used to fasten a lighting component  273  and a heater  274 . The convex sections  261  and  262  respectively contain ornaments  271  and  272 . Of course, the lighting component  273  and the heater  274  are able to be contained in the portion projecting outside the container. As the conducting wire  41  of the driving mechanism  40  is not necessarily placed in the container  21  of the water tank  20 , the deployment of power conducting wires  41  for the ornaments  271  and  272 , the lighting component  273 , and the heater  274  enable an appealing appearance of the aquarium. 
   In addition, the water tank  20  has a permeable stratum disposed near the bottom  22  thereof. The permeable stratum has holes or grids arranged thereon and an interface for linking ornaments. The permeable stratum is preferably arranged between the water inlet of the diverter  33  and the water discharge of the apparatus for the diversion of water discharge  43 . 
   As shown in  FIG. 10 , the water tank is in a rectangualar shape, contains a columnar body  24  with a magnetic rotary axle  34  inside thereof, extends outwardly from the bottom  22  of the water tank  20  near the center thereof to the container  21  of the water tank  20 . The filter  30  is disposed in the container, while the driving mechanism  40  is disposed outside the container. 
     FIG. 11  shows that the water tank  10  is in a rectangular shape containing a columnar body  24  with a magnetic rotary axle  34  inside thereof and extending outwardly from the sidewall  23  downwardly to the container  21  of the water tank  20 . The filter  30  is disposed in container  21 , while the driving mechanism  40  is disposed outside the container  21 . The sieve and the installed surface  241  of the columnar body  24  are placed vertically to each other. 
   With reference to  FIGS. 12 and 3B , the water tank is a round columnar body, containing the magnetic impeller  341 . The magnetic rotary axle  34  is positioned on the top of the shaft of the driving mechanism  40  outside the container  21 . The columnar body  24  extends upwardly from the bottom  22  of the water tank  20  near the center thereof to the container  21  of the water tank  20 . With reference to  FIGS. 13 and 3B , the columnar body  24  upwardly and inwardly extends from the bottom  22  of the water tank  20  near the center thereof to the container  21  of the water tank  20 . The filter  30  is disposed in the container, while the driving mechanism  40  is disposed outside the container. 
   With reference to  FIGS. 14 and 3 , the water tank  10  is in a rectanglular shape containing the magnetic impeller  341 ; its columnar body  24  extends upwardly and inwardly extends from the sidewall  23  of the water tank  20  to the container  21  of the water tank  20 . The filter  30  is disposed in container  21 , while the driving mechanism  40  is disposed outside the container  21 . The sieve and the installed surface  241  of the columnar body  24  are placed vertical to each other. 
   As shown in  FIG. 15 , the water tank  10  has a magnetic movable member comprising a magnetic slice  351  set between the diverter  33  and the installed surface  241 , extending upwards from the bottom  22  to the top end in the container  21 . The water inlet and the water discharge of the diverter  33  respectively possess retaining valves. The magnetic slice  351  possesses elasticity and a metal member  35  is set on the underside thereof. The container  21  has the driving mechanism  40  set outside thereof in a containing slot  244 . The driving mechanism  40  is a device for transforming the magnetic pole, which is an electromagnet  44  with a coil encircling outside the magnetic core. The electromagnet  44  is driven to generate the intermittent magnetism through the control of the conducting wire  41  and a circuit board  45 ; in addition, the magnetic slice  351  is driven to move up and down due to the intermittent magnetism generated by the driving mechanism  40 . 
   To sum up, the “aquarium” of the invention is able to achieve grinding efficiency and convenience, with the advantages of “practicability” and “advancement” in the field. 
   New characteristics and advantages of the invention covered by this document have been set forth in the foregoing description. It is to be expressly understood, however, that the drawings are for the purpose of illustration only and are not intended as a definition of the limits of the invention. Those who are skilled in the art may make changes in methods, shapes, structures, or devices in details without exceeding the scope of the invention. The scope of the invention is, of course, defined in the language in which the appended claims are expressed.