JPH0584032A - Cleaner for bottom of water tank - Google Patents

Abstract

PURPOSE:To sufficiently suck the bottom of a water tank irrespective of unevenness of the bottom of the water tank by arranging a great number of flexible pipes projecting vertically downward in the width direction side by side at a suction inlet of a front lower part of machine body. CONSTITUTION:A great number of flexible pipes 29c projecting vertically downward are arranged side by side in the width direction at a suction inlet 29 laid at a front lower part of machine body and a suction hose 27 is connected to a pump. Even if the flexible pipes are partially bent, suction from other pipes is continued.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a vacuum cleaner for sucking and removing sediment such as leftover bait and spoilage accumulated on the bottom of an aquarium for aquaculture and sludge.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 11, a vacuum cleaner is known in which a water tank bottom cleaner B'is submerged in a water tank A to absorb the sediment 7 deposited on the water tank bottom surface 6 to clean the water tank bottom surface. And the water tank bottom cleaner B ′ has a traveling wheel 2 at the bottom of the cover 1.
a. 2b are arranged, a suction port 3 is arranged at the lower front end of the cover 1, and a brush 9 is arranged at the rear part thereof so as to communicate with the suction hose 4 provided at the rear part of the cover 1 at the suction port 3. 4 is communicated with the pump 5, the other end of the discharge hose 8 communicated with the discharge port of the pump 5 is inserted into the drainage groove 12, and a hook 10 for suspending the cover 1 is provided above the center of the cover 1. 11 is locked. Then, the water tank bottom cleaner B'runs on the bottom surface 6 of the water tank for cleaning while sucking the precipitate 7 and the like.

[0003]

However, as in the prior art, the brush 9 is provided in the suction port 3 to provide the clearance between the bottom of the water tank and the suction port 9, but the gap between the main body of the suction port and the bottom is large. If you take it, the tip of the brush will not be aligned, so
It was not possible to obtain sufficient clearance because it sucked only water without sucking the precipitate or left unabsorbed water. Also, the running wheels of the aquarium bottom cleaner B'had rubber tires, etc., but because they run on sludge etc., they are slippery and could not be overcome even when there was a small obstacle. is there.

[0004] Further, when the wire is locked by a hook provided on the center of the cover and the water tank bottom cleaner B'is collected, the wire is wound up by a winch, but the wire is locked even during work. Therefore, the wires hindered the work because it became entangled with the suction hose, float, running wheels, etc. A centrifugal self-priming pump was used as a pump for sucking sediments, etc., but it is necessary to bleed air at the beginning of operation, but if the suction side lift is long, it will It took a very long time.

[0005]

In order to solve such problems, the present invention provides a self-propelled aquarium bottom cleaner,
A large number of flexible pipes project vertically downward and are arranged in parallel in the width direction at an intake port provided in the lower front part of the machine body. In addition, a large number of projections are radially projected around the driving traveling wheels. A switching valve is installed between the suction hose and the suction side of the pump, between the suction hose and the discharge side of the pump, between the discharge hose and the suction side of the pump, and between the discharge hose and the discharge side of the pump. It is provided to control the switching valve to switch back and forth in the suction hose and the discharge hose so as to bleed air in the initial stage of pump operation.

Further, in a self-propelled aquarium bottom cleaner, a hanging type cage capable of mounting a aquarium bottom cleaner is constructed so that it can be moved up and down into the aquarium by a hoist, and the aquarium bottom cleaner is installed in the aquarium. It has been installed and can be collected. Alternatively, a hook is fixed on the cover of the aquarium bottom cleaner, a lifting tool that locks the hook is attached to the wire, and the hoisting machine moves up and down so that the aquarium bottom cleaner can be installed and collected. The hook is arranged in a range where the detached state can be confirmed with a television camera built in the main body.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems to be solved by the present invention and the means for solving the problems are as described above. Next, the structure of the embodiments shown in the accompanying drawings will be described. 1 is a side sectional view showing a working state of the water tank bottom cleaner, FIG. 2 is a plan view of the water tank bottom cleaner,
FIG. 3 is a side sectional view of the same, FIG. 4 is a suction hose connection diagram, FIG. 5 is a side sectional view showing another embodiment for hoisting a water tank bottom cleaner, FIG. 6 is a rear view of an inlet, and FIG. ,
FIG. 8 is a side sectional view showing a state where the suction pipe is sucking, FIG. 9 is a side view in the case where there is an obstacle, and FIG.
FIG. 3B is a side view when there is also unevenness.

In FIG. 1, in the water tank A for fish farming, as the number of days increases, the amount of precipitates increases and it is necessary to regularly clean the bottom surface of the water tank in order to prevent dirt and the like. For this reason, the water tank bottom cleaner B is submerged in the water tank A and sucks up the sediment accumulated on the bottom surface of the water tank.

As shown in FIGS. 2 and 3, the structure of this aquarium bottom cleaner B is such that a motor 21 is arranged at the rear part of the machine body frame 20 to drive the left and right drive wheels 22.
The traveling wheels 23, 23 are disposed laterally forward of the 2.22 to enable traveling, and steering is also possible by stopping one of the left and right drives. Around the driving wheel 22 and the traveling wheel 23, pin-shaped (or lug-shaped) projections 22a
A large number of a, 23a, 23a, ... Are projected radially so that the vehicle can be reliably driven and run even if the weight becomes light in water, and that it can be run over obstacles and the like.

A support 24 is mounted on the motor 21.
The TV camera 25 is mounted on the center of the mounting table 24, and the lights 26 are provided on both sides of the front part of the mounting table 24.
The front side of the motor 21 and the TV camera 25, the wire harness 17 of the light 26 and the suction hose 27 are put together into one and extended to the water tank A so that it can be steered and operated by photographing the front side at 5. Allows the water tank bottom cleaner B to be operated remotely from the water tank A so as not to slacken by the float 19. A communication hose 30 that connects the suction hose 27 and the suction port 29 between the mounting table 24 and the motor 21.
Is provided, and the communication hose 30, the television camera 25, the light 26, and the like are covered with a cover 31.

The suction port 29 is disposed in the lower front portion of the body frame 20, and the suction port 29 is provided with a discharge port 29b at the upper center of the main body 29a as shown in FIGS. A brush 32 is attached to the main body 29a at the rear and side portions of the lower portion in a U-shape in a plan view so as to scrape off the precipitate, and a flexible pipe 29 is provided at the lower portion of the main body 29a.
c. 29c ... are projected downward and are arranged side by side, and the pipe 29c is made of a soft material such as silicon or synthetic resin, and bends even if there is an obstacle as shown in FIG. It is possible to avoid it. However, although the lower end of the pipe 29c is cut obliquely, it is cut parallel to the bottom surface as shown in FIG. 8 and arranged so as to be separated from the bottom surface by a certain distance so as not to scatter the precipitate. It is also possible to bend the lower end of the pipe 29c to be grounded as shown in FIG.

The other end of the suction hose 27 is connected to a pump P via switching valves 34a and 34b, which are electromagnetic valves, and is connected to a discharge hose 36 from the pump P via electromagnetic valves 35a and 35b. . That is, the switching valve 34 is provided between the suction hose 27 and the suction side of the pump P.
a, a switching valve 34b between the suction hose 27 and the discharge side of the pump P, a switching valve 35b between the discharge hose 36 and the suction side of the pump P, and a switch between the discharge hose 36 and the discharge side of the pump P. A valve 35a is provided, the end of the discharge hose 36 is placed in the water tank A or another tank in which water is stored when the operation of the pump P is started, and the switching valves 34b and 35b are turned on.
Then, the switching valves 34a and 35a are turned off and the flow is reversed as shown by the broken line, whereby water is sucked into the pump P in a short time to bleed air, and then the end of the discharge hose 36 is put into the drain groove 12. , Switching valve 34a ・ 35a ON
However, when the switching valves 34b and 35b are turned off, suction can be performed immediately as indicated by the solid line.

After the cleaning work, the water tank bottom cleaner B
In the past, the wire locked on the hook was wound up, but since the wire becomes an obstacle during the cleaning work, the present invention, as shown in FIG. A wire 41 is locked to a box-like or stackable plate-like cage 40 that can be loaded.
Is wound up or unwound by a hoist 42 such as a winch or a crane so that the cage 40 can be moved up and down so that a water tank bottom cleaner B can be installed and collected. However, the cage 40 is composed of a case or the like with open mesh holes so that it can smoothly move up and down in water.

Instead of moving up and down by the cage 40, as shown in FIG. 5, an inverted U-shaped hook 43 is horizontally fixed to the upper portion of the cover 31, or the hook 4 is slanted.
By fixing 3 ′, attaching a squid-like hoisting tool 44 to the tip of the wire 41, operating the hoisting machine 42, and moving the water tank bottom cleaner B appropriately while watching the TV camera, After confirming that the hook 43 is disengaged from the hoisting tool 44, installation and recovery are possible.

[0015]

With the above-mentioned structure, the structure according to claim 1 is adopted. Therefore, even if the flexible pipe provided at the suction port hits an obstacle, it bends and only that portion can be avoided.
It did not interfere with the suction of other pipes, and no longer left unsucked, making it possible to clean up in correspondence with irregularities.

Further, according to the second aspect of the present invention, the aquarium bottom cleaner can surely travel without slipping due to the protrusions provided on the driving traveling wheels, and can overcome obstacles.
It became possible to clean the entire area. Further, according to the third aspect of the invention, the water flow of the suction hose and the discharge hose is reversed by switching the switching valve in the initial stage of pump operation, and since the discharge hose is short, water is sucked in in a short time. When the air bleeding is completed and the air bleeding is completed, the switching valve is switched to suck the air in the forward direction so that the suction work can be performed immediately, which does not require an expensive pump that automatically bleeds air and is inexpensive and large. The capacity of the pump is now available.

Further, since it is configured as in claim 4, at the time of installing and recovering the water tank bottom cleaner, the water tank bottom cleaner is loaded in the cage and the hoisting machine is moved up and down to easily install and recover in a short time. In addition, the wire can be removed during the work, and the cleaning work can be reliably performed without getting entangled in the float or the like. Alternatively, the lifting device is hooked on the hook so that it can be moved up and down, so that not only the installation / recovery is facilitated, but also the configuration is simplified and the installation / recovery can be configured at low cost.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a working state of a water tank bottom cleaner.

FIG. 2 is a plan view of a water tank bottom cleaner.

FIG. 3 is a side sectional view of the same.

FIG. 4 is a suction hose connection diagram.

FIG. 5 is a side sectional view showing another embodiment in which the water tank bottom cleaner is lifted.

FIG. 6 is a rear view of the suction port.

FIG. 7 is a side sectional view of the same.

FIG. 8 is a side sectional view showing a state where suction is performed by a suction pipe.

FIG. 9 is a side view when an obstacle is also present.

FIG. 10 is a side view in the case where there are also irregularities.

FIG. 11 is a side sectional view showing a working state of a conventional water tank bottom cleaner.

[Explanation of symbols]

 A water tank B water tank bottom cleaner P pump 22 drive wheel 22a protrusion 27 suction hose 29 suction port 29c pipe 31 cover 34/35 switching valve 36 discharge hose 40 cage 41 wire 42 hoisting machine 43 hook 44 lifting tool

Claims (5)

[Claims] 1. A self-propelled aquarium bottom cleaner, characterized in that a large number of flexible pipes are arranged vertically in parallel in a width direction at an inlet provided at a lower front portion of the machine body. A water tank bottom vacuum cleaner. 2. A self-propelled aquarium bottom cleaner, characterized in that a large number of protrusions are radially projected around the driving wheels. 3. A pump section connected to the suction hose of a water tank bottom cleaner, wherein the suction hose is connected to the suction side of the pump.
A switching valve is installed between the suction hose and the discharge side of the pump, between the discharge hose and the suction side of the pump, and between the discharge hose and the discharge side of the pump. A water tank bottom cleaner characterized in that the switching valve is controlled so as to bleed air. 4. In a self-propelled aquarium bottom cleaner, a hanging cage capable of loading a aquarium bottom cleaner is configured to be able to move up and down into the aquarium by a hoist, and the aquarium bottom cleaner is installed in the aquarium. The aquarium bottom vacuum cleaner is characterized by being installed and collected. 5. A self-propelled aquarium bottom cleaner, in which a hook is fixed on a cover of the aquarium bottom cleaner, a lifting tool for locking the hook is attached to a wire, and the hoist is used to move up and down. The aquarium bottom cleaner is characterized in that the aquarium bottom cleaner can be installed and collected, and the hooks are arranged in a range where a detached state can be confirmed by a TV camera installed in the main body.