JPH038181B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an aquarium cleaning device. More specifically, the present invention relates to a cleaning device for an aquarium for rearing aquatic seeds and seedlings.

[Prior Art] In order to grow seeds and seedlings of aquatic organisms in aquaculture, hatched larvae are raised in a breeding tank, that is, an aquarium, for several months.

In this type of aquarium, there is a danger that during rearing of the fry, the feed input, the excrement of the fry, and other substances may settle at the bottom of the tank, disrupting the environment inside the tank, and causing the fry to die. be.

Therefore, it has been conventional practice to remove the sediment from the bottom of the aquarium. The cleaning is done entirely by human labor, by moving the tip of a pipe connected to a suction pump along the bottom of the tank to suck out the sediment.
It was being discharged.

Such conventional cleaning is not only extremely uneconomical in terms of costs, but also has many disadvantages, such as sucking up a large amount of the young fish being raised and damaging the young fish.

As one of the solutions to these problems,
Patent Application No. 218349 discloses that vertical rails are laid on one side wall of a rectangular aquarium, for example, vertically opposing side walls, and the system runs vertically on a pair of vertical rails. A second rail extending horizontally is laid on this moving platform, and a suction pipe that reaches the bottom of the water tank is mounted on the trolley that runs on the second rail. ,
A device is disclosed in which the lower end of a suction tube scans the bottom of an aquarium to remove sediment.

[Problems to be Solved by the Invention] The device of the invention of this earlier application exhibits the effects described in the specification, but it is necessary to lay rails on the tops of the opposite side walls of the rectangular water tank. Therefore, when working on the side wall,
Fixed structures such as rails were a hindrance, and the cylindrical structure of the water tank was inconvenient.

[Object of the Invention] In view of the problems described above, the main object of the present invention is to provide a cleaning device for an aquarium whose plane surface is a regular polygon, particularly a circle.

SUMMARY OF THE INVENTION An object of the present invention is to provide an aquarium cleaning device that allows easy access into the aquarium from the side edge of the aquarium without installing a fixed structure such as a rail on the top surface of the side wall of the aquarium.

A further object of the present invention is to provide an aquarium cleaning device that has a simple structure and is easy to control without installing rails or the like on the side edges or other parts of the aquarium.

Another object of the present invention is to provide an aquarium cleaning device that can remove substances deposited at the bottom of the aquarium over the entire bottom surface.

[Structure of the Invention] [First Embodiment] A preferred embodiment of the present invention will be described with reference to FIGS. 1 and 2. The cleaning device of the present invention is preferably applied to an aquarium for cultivating or propagating aquatic seeds and seedlings, but can also be applied to an aquarium for other purposes as necessary.

Although it is preferable that the side wall 12 of the aquarium 10 equipped with the device of the present invention has a circular plane, it can also be effectively used for a regular polygonal aquarium with a large number of sides. However, in order to simplify the explanation, the water tank 10 will be described below as having a circular side wall 12. The top surface 14 of the side wall 12 is a flat surface,
It can be set at an appropriate height above the ground surface 16 if necessary. A support stand 20 is provided at the center of the water tank 10 and projects upward from the water surface 18.

The cleaning device 30 is attached to the support stand 20 and the side wall 1 of the water tank 10.
A pedestal 32 is provided that bridges between the top surface 14 of the two. A shaft member 3 is attached to the end of the pedestal 32 on the support stand 20 side.
4, the shaft member 34 is rotatably supported in a suitable bearing arrangement, for example a self-aligning bearing 36, which is fixed to the support base 20.

A wheel 38 rolls on the flat top surface 14 of the side wall 12 at the end of the pedestal 32 on the side wall 12 side of the water tank 10 to support the pedestal 32. can rotate around the entire circumference. As described above, the pedestal 32 can be rotated by disposing the motion control device 40 on the pedestal 32, which includes a suitable motor or the like that imparts rotational motion to the wheels 38.

A water suction pump chamber 42 is fixed to the pedestal 32 at an intermediate portion on its longitudinal axis. Water suction pump room 4
2 is provided with a water suction pump 44, and the pump 44 is provided with a tube 46 extending vertically downward. The position of the tube 46 is midway between the outer wall 22 of the central support 20 of the aquarium 10 and the inner wall 24 of the side wall 12 of the aquarium. The tube 46 is attached to the suction pump 44 for rotation about the longitudinal axis of the tube 46 by suitable couplings and drive devices (both not shown in the drawings) known per se.

The pipe body 46 is a horizontal pipe part 18 that extends in a right angle direction above the water surface 18 of the water tank 10, and the other end of the horizontal pipe part 48 is connected to the side wall 12 of the water tank 10.
The aquarium 10 is bent vertically downward at a portion approaching the inner wall 24 of the central support 20 or the outer wall 22 of the central support 20.
The vertical water suction pipe 50 extends and terminates in close proximity to the bottom wall 26 of the tank. Note that the tube body 46 can be made movable up and down as necessary.

In order to discharge the water and sediments pumped up from a portion close to the bottom wall 26 of the water tank 10 by the water suction pump 44 to the outside of the tank, an appropriate discharge path 52 is provided in the pedestal 32, and a suitable discharge path 52 is provided along the side wall 12 of the water tank 10. Drainage ditch 2
It is designed to lead to 8.

[Second Embodiment] FIG. 3 is a schematic diagram illustrating a second embodiment of the aquarium cleaning device according to the present invention. In order to simplify the explanation, parts that are the same or similar to those in the first embodiment are given the same reference numerals.

According to a second embodiment of the present invention, the cleaning device 130 includes a pedestal 132 cantilevered from the support 20 toward the side wall 12 of the aquarium 10 . A shaft member 34 is provided at the end of the pedestal 132 on the side of the support base 20, and this shaft member 34 is rotatably supported by a bearing device 36 fixed to the support base 20. In order to impart rotational movement to the shaft member 34, the pedestal 132 is provided with a drive chamber 140 which accommodates an electric motor, a gear system (both not shown in the drawings), etc., which are known per se.

The other end of the pedestal 132 rotatably cantilevered to the central support 20 is closer to the side wall 12 than the middle of the straight line connecting the outer wall 22 of the support 20 of the aquarium 10 and the inner wall 24 of the side wall 12 of the aquarium 10. It ends with a part. A water suction pump chamber 42 that accommodates a water suction pump 44 is fixed to the free end side of the pedestal 132. A rotating pipe body 46 is attached to the pump 44 in exactly the same manner as in the first embodiment, and a horizontal pipe section 48 and a vertical suction pipe 50 are connected.

In this embodiment, the waste water pumped up from near the bottom wall 26 of the water tank 10 by the water suction pump 44 is transferred to the support base 132 through a suitable conduit provided on the base 132.
It can be led to the outside of the water tank 10 through a discharge pipe 152 disposed at the water tank 10.

[Operations and Effects of the Invention] Since the aquarium cleaning device 30; 130 of the present invention is configured as described above, the mount 32;
32 is rotated around the shaft member 34 supported by a bearing device 36 provided on the support stand 20, the stand 32; 132 rotates along the side wall 12 of the water tank 10, as shown in FIG. , positions A, B, C, and so on in the direction of arrow E. At the same time, the vertical water suction pipe 50, which reaches a position close to the bottom wall 26 of the aquarium 10, is centered around the pipe body 46 moving on a circumference 46D concentric with the side wall 12, and has circumferences F, G in FIG. It can be rotated in the direction of the arrow H. Therefore, the pipe opening at the water suction end of the vertical water suction pipe 50 draws a continuous locus of circumferences F, G, H, etc., which is almost inscribed in the inner wall 24 of the water tank 10.
While passing through a position close to the bottom wall 26 of the water tank 10, the entire surface of the bottom wall 26 of the water tank 10 can be scanned, and wastewater containing sediment can be sucked and discharged to the outside of the water tank 10.

According to the present invention, it is possible to appropriately control and select the speed of rotation of the pedestal 32; 132 about the shaft member 34 and the rotation of the vertical water suction pipe 50 about the pipe body 46. Therefore, when the aquarium cleaning device of the present invention is applied to an aquarium for aquaculture of aquatic seedlings, it can effectively clean the aquarium without giving unnecessary stimulation to or damaging the young fish in the aquarium. It can be cleaned, has fewer failures, and is effective in achieving all of the objects of the invention mentioned above.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view showing a part of the aquarium in order to explain the first embodiment of the aquarium cleaning device according to the present invention, and FIG. 2 is a schematic plan view showing a part of FIG. 1. 3 is a schematic diagram similar to FIG. 1 regarding the second embodiment of the present invention, and FIG. 4 is a schematic diagram illustrating the locus of operation of the water suction pipe of the aquarium cleaning device of the present invention. The main symbols in the drawings are as follows. 10...Aquarium, 12...Aquarium side wall, 16...
Earth surface, 18... Water surface, 20... Support platform, 22...
Outer wall of support stand, 24... Inner wall of side wall, 26... Bottom wall of water tank, 30; 130... Cleaning device, 32; 1
32... Frame, 34... Shaft member, 36... Bearing device, 38... Wheel, 40... Operation control device, 42
...Suction pump room, 44...Water suction pump, 46...
... Pipe body, 48 ... Horizontal pipe section, 50 ... Vertical water suction pipe, 140 ... Drive chamber.

Claims (1)

[Scope of Claims] 1. A support stand provided at the center of a water tank having a regular polygonal side wall, a shaft member rotatably supported by a bearing device fixed to the support stand, and one end attached to the shaft member. An aquarium cleaning device comprising: a mount having a free end extending radially outward from the shaft member; and a water suction pump fixed on the mount; the mount having a free end extending radially outward from the shaft member; , a water suction pipe member coupled to the water suction pump, the water suction pipe member comprising a first vertical pipe portion, a horizontal pipe portion extending above the water surface of the water tank to a position close to the side wall of the water tank; a second vertical pipe section that extends vertically from the extended end of the horizontal pipe section to a position approaching the bottom wall of the water tank; and the first vertical pipe section of the water suction pipe member is connected to the side wall of the water tank. and a device for rotating the water suction pipe member, which is connected to the water suction pump at a central position on a straight line connecting the inner wall of the support base and the outer wall of the support base, and a device for rotating the water suction pipe member, and a device for rotating the water suction pipe member. By rotating the water absorbing member,
A cleaning device for an aquarium, characterized in that the lower end of the water absorbing member rotates with the lower end almost inscribed in the inner wall of the aquarium to scan the entire bottom surface of the aquarium. 2. Claim 1, wherein the free end of the mount ends without reaching the side wall of the water tank.
The aquarium cleaning device described in section.