JPH11325000A - Water exchanging pump for aquarium fish tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently and remarkably easily drain and supply water in exchanging the water of an aquarium fish tank. SOLUTION: This water exchanging pump is provided with a water leading pipe 12 folded like an inverted U-shape at an intermediate part thereof with one end inserted into an aquarium fish tank so as to lead out the water, and a draining pipe 13 connected to the other lower end of the water lead pipe 12 and provided with a pump 15 for sucking the water inside of the aquarium fish tank on the way thereof and for draining the water sucked through the water leading pipe 12 to the outside. The other lower end of the water leading pipe 12 is provided with a strainer 17 provided with slit-like openings 16 opened in the peripheral surface thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pump for an ornamental fish tank used when performing a water changing operation of an ornamental fish tank for rearing ornamental fish such as tropical fish.

[0002]

2. Description of the Related Art A conventional water exchange pump for an ornamental fish tank, for example, a water exchange pump 1 shown in FIG. 4, has a pipe turned upside down in a U-shape, and one of which is inserted into the ornamental fish tank to guide water. A grasping pump 4 is provided in the middle as a drainage pipe part 3 as the part 2, and a tubular body 5 having a larger inner diameter than the water guide pipe part 2 is formed at the lower end of the water guide pipe part 2, By increasing the inner diameter of the tubular body 5, the water absorption force at the opening at the tip of the tubular body 5 is reduced when the pump 4 is operated and drainage is performed (the flow rate per unit area is reduced). Thereby, it was configured to prevent suction of gravel laid on the bottom of the ornamental fish tank. At the same time as draining, organic matter, debris of aquatic plants, moss clumps, and the like that have accumulated in the gravel are also removed.

Since the opening at the tip of the cylindrical body 5 has a large inner diameter, there is a high risk of sucking the ornamental fish. Therefore, a net-like lid member 6 is detachably attached so as to cover this opening.
This allows the ornamental fish in the ornamental fish tank to be replaced by the water exchange pump 1
Prevents inhalation.

[0004] When water is supplied into the ornamental fish tank, a hose is connected to a tap of a water supply, and water is supplied from the hose, or water is directly supplied using a bucket.

[0005]

However, the conventional water pump for aquarium fish tanks has a problem in that when the aquarium fish is left in the aquarium fish tank for drainage work (a predetermined amount of water is required for the aquarium fish). To avoid danger of inhalation of the ornamental fish, a lid member must be attached to the opening of the tubular body, which reduces the water absorption force and removes the gravel from the bottom of the ornamental fish tank. Organic matter, debris of aquatic plants, lump of moss, etc., cannot be removed efficiently.

Further, if the drainage work is not performed carefully, the ornamental fish may be attracted to the lid member, which may significantly reduce the drainage speed or cause an unexpected situation for the attracted fish. There is also. Furthermore, since the flow of water sucked from the opening is a single direction rising from the lower surface, small gravel may be sucked as it is,
This is noticeable when the operation is performed with the lid member removed.

Further, when water is supplied into the ornamental fish tank with a hose or a bucket, the water flows in a single direction and directly hits the gravel on the bottom of the ornamental fish tank, so that the gravel laid on the bottom of the ornamental fish tank is lost. Soaring, uneven gravel may be biased, or planted weeds may fall off. Therefore, it is necessary to weaken the pressure of the flowing water by laying a plate on a portion directly hit by the flowing water or flowing the water toward the wall surface of the aquarium for aquarium fish, and the operation is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a water pump for an ornamental fish tank in which drainage and water supply can be performed extremely easily and efficiently when changing the water in the ornamental fish tank.

[0009]

Means for Solving the Problems The present invention has been proposed in view of the above, and according to the first aspect of the present invention, the middle part is folded in a U-shape, and one lower end is placed in an aquarium fish tank. A water guiding pipe portion for introducing water into the water guiding pipe portion, and a pump connected to the other lower end portion of the water guiding pipe portion for sucking water in the aquarium fish tank, provided through the water guiding pipe portion. A drain pipe for draining water sucked out to the outside, and a strainer provided with a slit-shaped opening on the outer peripheral surface at one lower end of the water pipe. This is a water pump for fish tanks.

According to a second aspect of the present invention, a separately formed water guide pipe and a drain pipe are connected in a detachable manner with a hose interposed therebetween, and the thickness of the hose is reduced. 2. The water pump according to claim 1, wherein the thickness of the passage is reduced by manual pressing.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a water exchange pump 11 for an ornamental fish tank according to the present invention.

Water exchange pump 11 for an aquarium fish tank shown in FIG.
Is a water-guiding pipe part 1 which is folded in a U-shape in the middle and one lower end is inserted into an aquarium fish tank to guide water.
2, a drain pipe section 13 connected to the other lower end of the water pipe section 12, a connection hose 14 connecting the water pipe section 12 and the drain pipe section 13, and a drain pipe section. A pump 15 is provided in the middle of the pipe 13 and sucks water in the ornamental fish tank at the time of drainage. At one lower end of the water pipe 12, a slit-shaped opening 16 is formed on the outer peripheral surface. Is provided.

The water pipe 12 has a bellows portion 18 at the center of the U-shaped folded portion. One end of the bellows portion 18 has a bellows portion, and the lower end of the bellows portion 18 sucks water when sucking water in the ornamental fish tank. A strainer 17 as a part is attached, and an attachment part 19 to be fitted into the connecting hose 14 is formed at the other lower end.

The strainer 17 is provided with a water pipe 12.
A cylindrical body having an inner diameter slightly larger than that of
mm), and a lid member 20 detachably attached to the distal end opening of the cylindrical body. A plurality of slit-shaped openings 16 are formed in the outer peripheral surface of the cylindrical body along the axial direction. Member 2
At 0, a plurality of arc-shaped slits 21 having a width of 1 mm are formed on concentric circles. In the present embodiment, 24 slits having a width of 1.5 mm are formed at the same pitch on the outer peripheral surface of the cylindrical body.

For this reason, when water is sucked by the strainer 17, the force of the vertical water flow from the opening at the tip end of the strainer 17 can be weakened by the horizontal water flow flowing from the slit-shaped opening 16, whereby Despite the small inside diameter of the tip opening, the gravel with a high specific gravity laid on the bottom of the aquarium fish tank is not sucked,
Light weight, organic matter accumulated in gravel, debris of aquatic plants,
Removal of moss clumps by suction is possible. Therefore, unlike the strainer of the conventional water exchange pump, it is not necessary to increase the diameter, the handling operation is easy, and the trouble of sucking the ornamental fish can be reduced.

Further, since the strainer 17 has a plurality of slit-shaped openings 16 on its outer peripheral surface, the drain opening is disposed such that the leading end opening of the strainer 17 is buried or in contact with the gravel at the bottom of the ornamental fish tank. Thus, it is possible to remove organic matter such as food and feces left behind without sucking the ornamental fish in the ornamental fish tank.

The strainer 17 may be attached after being formed separately from the water guide pipe. Alternatively, the strainer 17 may be provided with a slit-shaped opening 16 directly in the outer peripheral surface of the lower end of the water guide pipe.

The bellows portion 18 uses a shape-memory bellows, and can maintain a state in which the water guide pipe portion 12 is folded in a U-shape at the time of drainage or water supply described later. Therefore, the water pump 11 can be used as well as being fixed on the wall of the aquarium tank, and the strainer 17 can be prevented from jumping.

Next, the drainage pipe section 13 will be described. The drain pipe section 13 has a connecting hose 1 at the upper end.
4, a drain port 2 for discharging water sucked through the water guide pipe 12 to the outside at the lower end.
3 is opened, and a grasping type pump 15 is provided in the middle.

The connecting hose 14 is a thin-walled hose that can be easily deformed by being pressed by hand, and realizes a quick and simple flow rate adjusting function at the time of drainage work. For this reason, when it is desired to slowly drain the water in the aquarium fish tank or when it is desired to interrupt the drainage, the connecting hose 14 is pressed with a finger to reduce the cross-sectional area of the flow path, thereby facilitating the flow rate. Can be adjusted or the flow can be stopped.

The connecting hose 14 is connected by being inserted into a mounting portion 19 of the water guide pipe portion 12 and a mounting portion 22 of the drainage pipe portion 13. Therefore, the pump 15 can be easily connected to the water pipe 12 and the drain pipe 1.
3. Since it can be separated from the connection hose 14, cleaning becomes easy and storage becomes easy. Further, a water supply hose can be connected when water is supplied into the ornamental fish tank.

By forming the water guide pipe section 12 with a transparent pipe, it is possible to confirm the state of removal of dirt such as organic substances, and to immediately adjust the flow rate or stop even if an ornamental fish is sucked. Water can.

Next, a method of using the water exchange pump 11 of the present invention will be described. First, the case of draining the ornamental fish tank A will be described. As shown in FIG. 2, the bellows portion 18 of the water guide pipe portion 12 is folded back in a U-shape, and the opening at the tip of the strainer 17 is buried or abutted on the gravel 25 laid on the bottom of the ornamental fish tank A. In this manner, the inverted U-shaped portion of the water guide pipe 12 is hung on the wall of the aquarium A for ornamental fish. Then, the pump 15 provided on the drainage pipe section 13 is pressed to suck water in the aquarium A for aquarium fish,
A hose is attached to the bucket 26 from the drain port 23 or to the drain port 23, and drains directly to the sewer. In addition, once the water flows out from the drain port 23, the water in the ornamental fish tank A flows out from the drain port 23 by the siphon principle without operating the pump 15.

The pump 15 is preferably provided not on the drain port 23 but on the connecting hose 14 side so that the above-mentioned pressing operation of the pump 15 can be easily performed in a natural posture.

Since the bellows portion 18 of the water pipe 12 uses a shape-memory bellows, it is difficult to be inadvertently deformed once it is folded in an inverted U-shape. The strainer 17 buried or abutted on the gravel 25 laid on the bottom is less likely to tilt. Also, even if the strainer 17 is tilted and sucks the ornamental fish from the opening at the tip, the suction can be stopped immediately by pressing the connecting hose 14, thereby preventing the ornamental fish from being discharged into the sewage or the like. it can.

In order to avoid the above-mentioned trouble beforehand, or to omit the trouble of fixing the opening of the tip of the strainer 17 in the gravel 25 at the bottom of the aquarium A for aquarium fish, the tip of the strainer 17 is required. Lid member 2 in opening
It is desirable to attach 0.

Next, the case where water is supplied to the ornamental fish tank A will be described. As shown in FIG. 3, the water guide pipe 12 is separated from the water exchange pump 11, and a lid member 20 is attached to a distal end opening of the strainer 17.
The second strainer 17 is arranged in the aquarium A for ornamental fish.
Then, the inverted U-shaped portion of the water guide pipe portion 12 is hung on the wall of the ornamental fish tank A and fixed, and a hose 27 from a water supply is connected to the attachment portion 19 of the water guide pipe portion 12. When the faucet is opened in this state, tap water is supplied into the ornamental fish tank A. Therefore, it is not necessary to keep the water supply hose 27 by hand when supplying water.

At the time of water supply, the strainer 17 serves as a water supply port, and the slit-shaped opening 16 of the strainer 17 and the slit 21 of the cover member 20 provide resistance to the supplied water, so that the flowing direction of the water is vertical and horizontal. Spread in multiple directions,
The water supplied is weakened and water is guided into the aquarium A for ornamental fish. Therefore, gravel 2 laid on the bottom of the aquarium A for aquarium fish
No scattering of 5 etc.

When a neutralizer (eg, sodium thiosulfate crystal) for neutralizing chlorine is loaded into the strainer 17 closed by the lid member 20 and water is supplied, the strainer 17 is diffused from the strainer 17. When water is introduced, random convection occurs in the strainer 17, and the dissolution rate of the neutralizing agent is accelerated, and the neutralizing action with chlorine dissolved in tap water as a water source at the time of water supply can be promoted. .

[0030]

As described above, according to the present invention,
The following effects are obtained. In the invention of claim 1, since the slit-shaped opening is formed in the outer peripheral surface of the lower end portion of the water-guiding pipe, when water is sucked, the water flow in the horizontal direction from the slit-shaped opening is used for water-guiding. The momentum of the vertical water flow from the tip opening at the lower end of the pipe can be reduced. Accordingly, it is possible to prevent the gravel laid on the bottom of the aquarium fish tank from being sucked, and to remove organic matter, debris of aquatic plants, moss clumps, and the like accumulated in the gravel. In addition, since the lower end of the water guide pipe is provided with a plurality of slit-shaped openings on the outer peripheral surface, the bottom end of the water guide pipe is buried or abutted on the gravel at the bottom of the ornamental fish tank during drainage. By arranging them, organic substances and the like can be removed without sucking the ornamental fish in the ornamental fish tank.

The inner diameter of the opening at the lower end is small.
Since the vertical water flow (water absorption) is also weak, even if water is absorbed without embedding the tip opening in the gravel at the bottom of the ornamental fish tank, it is possible to reduce the trouble of sucking the ornamental fish.

According to the second aspect of the present invention, the separately formed water guide pipe and the drain pipe are connected in a detachable manner with a hose interposed therebetween, and the thickness of the hose is reduced. Since the channel cross-sectional area is reduced by manual pressing, if you want to slowly drain the water in the aquarium fish tank,
Alternatively, when the drainage is to be interrupted or the like, a quick and simple flow rate adjusting function can be performed by pressing the connecting hose.
In addition, since it can be easily separated into a water pipe section, a drain pipe section, and a connecting hose, cleaning is easy and storage is easy.

In addition, since the drain pipe can be removed and a hose connected to a water tap can be connected, there is no need to hold the hose by hand when supplying water.

[Brief description of the drawings]

FIG. 1 is a front view of a water exchange pump for an ornamental fish tank according to the present invention.

FIG. 2 is an explanatory view showing a state in which water is drained using a water exchange pump of an ornamental fish tank according to the present invention.

FIG. 3 is an explanatory view showing a state in which water is supplied using a water exchange pump of an ornamental fish tank according to the present invention.

FIG. 4 is a front view of a conventional water exchange pump for an ornamental fish tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water exchange pipe 11 Water exchange pump 12 Water guide pipe part 13 Drainage pipe part 14 Connection hose 15 Pump 16 Opening part 17 Strainer 18 Bellows part 19 Attachment part 20 Lid member 21 Slit 22 Attachment part 23 Drain outlet 25 Gravel 26 Bucket 27 Hose A Aquarium fish tank

Claims (2)

[Claims] 1. A water guide pipe part which is turned upside down in a U-shape and one end of which is inserted into an ornamental fish tank to guide water, and which is connected to the other lower end of the water guide pipe part. A pump for suctioning water in the aquarium fish tank, and a drain pipe for draining the water sucked through the pipe for water guiding to the outside, one of the pipes for water guiding A water pump for an ornamental fish tank, wherein a strainer having a slit-shaped opening on the outer peripheral surface is provided at a lower end portion. 2. A separately formed water guide pipe portion and a drainage pipe portion are connected to each other in a detachable manner with a hose interposed therebetween, and the thickness of the hose is reduced by manual pressing so that the cross-sectional area of the flow passage is reduced. 2. The water exchange pump for an ornamental fish tank according to claim 1, wherein the thickness is reduced.