JPH0210946Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a filter for a fish tank.

Some conventional fish tank filters have an air pump combined with the filtration container body and submerged in the water of the fish tank.A tube is connected to the storage chamber of the air pump to allow air to pass through the tube. Although the connecting cord is connected to the air pump in the storage chamber, there are drawbacks such as the trouble of connecting the tube, poor watertightness of the connection, and damage to the connection.

In view of the above, the present invention provides a double tube in the storage chamber, which is a connecting tube for the tube and a protective tube concentrically surrounding the tube, and the tube is inserted between the protective tube and the connecting tube and fitted into the connecting tube. As a result, the tubes can be easily connected, watertightness can be obtained without using backing, etc., and the connecting tube can not be broken.

Examples of the present invention will be described below.

Figure 1 shows a fish tank filter in which air is pumped to pump 1.
The sewage is sucked through the cylindrical portion 4 of the lid 3 of the pump storage chamber body 2 and discharged as bubbles into the water pumping tube 5, and the bubbles suck dirty water from the inlet 7 at the lower end of the filter container body 6 and from the inlet chamber 8. The water is fed into a filtration chamber 9 to be filtered, and the filtered water is drained from an outlet 11 via a water pump 5.

The filtration container main body 6 is vertically elongated and has a substantially rectangular parallelepiped shape, and a corner 12 where the sewage inlet 7 is formed is formed into an arc shape with a larger diameter than the other corners (FIG. 3).
This filter can be easily installed in the corner of the aquarium, and sewage can be sucked in smoothly over a wide area. The lower end of the container body 6 is closed with a bottom 13, and the upper end is open (FIG. 2). From this opening, a filter medium container 14, an air stone 15, and a check valve 1, which will be described later, are inserted into the container body.
6.Install tubes 17 and 18. The sewage inlet 7 is formed in the shape of an elongated hole at the arc-shaped corner 12 of the peripheral wall of the container body 6, and is also formed in the shape of a round hole in the bottom wall (FIG. 4).

The water pumping tube 5 has a cylindrical shape, extends from the bottom 13 of the container body 6 to the opening surface, is located close to the arcuate portion 12 of the peripheral wall of the container body, and has an approximately 90 mm diameter at the lower end of the water pumping tube.
A circular arc-shaped hole 19 is formed through which the filtered water flows into the water pump (FIG. 4).

The two partition walls 20 are in the form of elongated rectangular plates and extend from the bottom 13 of the container body 6 to a position one step below the height of the opening surface of the main body 6, and both sides of each partition wall 20 are connected to the water pump 5 and the container main body. 6 (FIG. 5). These partition walls 20 and water pumping tube 5 are connected to the peripheral wall portion 22 of the corner portion 12 of the container body 6.
and the remaining peripheral wall portion 23 form a waste water inlet chamber 8 and a filtration chamber 9, respectively (FIG. 5). The inlet chamber 8 is connected to the inlet 7 at its lower end and to the filtration chamber 9 at its upper end. Sewage in the tank is at inlet 7
It is sucked into the lower end of the inlet chamber 8, rises within the inlet chamber, flows over the upper end of the partition wall 20 into the filtration chamber 9, and further descends through the inlet hole 19 of the water pumping cylinder 5 to the lower end of the cylinder. flows in and rises.

The lid 24 that closes the opening surface of the container body 6 has a rectangular shape corresponding to the cross-sectional shape of the container body, has an edge 25 around it that fits into the peripheral wall of the body, and has a screw 26.
is fixed to the main body.

The pump storage body 2 is a cylindrical body with a bottom 29, with approximately 1/2 storage portion 30 extending downward from the lid, and the remaining storage portion 31 extending upward. A portion 32 of the storage portion 30 is a water pump 3 that fits into the water pump 5.
3 is recessed in an arc shape so that the water pumping cylinder 33 is integrally connected to the lid 24 and the storage part 30, and a part thereof further extends above the lid to form a filtered water outlet 11. are doing.

The pump 1 includes an electromagnet 36 inside a rectangular parallelepiped main body 35.
, an arm 37 that is swung by the electromagnet, and a diaphragm pump device 38 that suctions and discharges air by following the arm.
is included.

The lid 3 that closes the opening of the storage portion 31 is circular;
A hole 63 through which the power cord 42 is passed is bored in the center, and double cylinders 4, 4 are arranged concentrically surrounding the hole.
5 is standing up.

The power cord 42 is connected to the electromagnet 36 through a hole 63 in the lid 3 and covers a tube 46 for supplying air to this cord. One end of the tube 46 is fitted into the cylinder 4, and the other end takes a position outside the water of the aquarium. There is a gap large enough to allow air to flow between the tube 46 and the cord 42.
There is a similar gap between the hole 63 and the hole 63. Air is therefore forced into the storage chamber through these gaps.

The tube 47 is connected at one end to the pump device 38 and at the other end to a hollow protrusion 49 of the step 48 between the storage parts 30 and 31, and guides the air discharged from the pump into the pumping cylinders 5 and 33.

The tube 17 is connected at one end to the hollow protrusion 50 of the stepped portion 48 and at the other end to the check valve 16. One end of the tube 18 is also connected to the check valve 16, and the other end is connected to the air stone 15.
Air bubbles are discharged from the air stone 15 to the lower end of the water pumping tube 5 through these tubes, and the water is pumped up.

As the filtration means, a method may be used in which the filtration material 51 is directly filled into the filtration chamber 9, but the filtration material 51 is filled into the filtration material container 14 as follows,
It is more convenient to use a so-called cartridge type system in which the entire container 14 can be taken into or out of the filtration chamber 9. The container 14 is of an assembly type that is divided into halves, and its size is determined as appropriate.

As described above, in the present invention, a double tube consisting of the connecting tube 4 of the tube 46 and the protective tube 45 concentrically surrounding the connecting tube is provided on the lid 3 of the air pump storage chamber body 2, and the power cord 42 is connected to the connecting tube. An air intake tube 46 that is passed through the inside of the protective tube 45 and covered with the cord is inserted into the protective tube 45.
Since it is inserted between the connecting cylinder 4 and the connecting cylinder 4, it is easier to connect the air intake tube compared to the conventional case where the tube is fitted inside the cylinder. Watertightness of tube connections can be achieved without using packing etc.
Moreover, even if the connecting tube is made thinner, it is still protected by the protective tube.
There is no risk of it breaking during use or handling.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is an assembled perspective view, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, FIG. 3 is a perspective view of the lid, and FIG. The sectional view, FIG. 5, is a sectional view taken along the - line. In the figure, 1 is the pump, 2 is the pump storage chamber body, 3 is the lid, 4 is the connecting tube, 5 is the pumping tube, 6 is the filtration container body, 7 is the inlet, 8 is the inlet chamber, 9 is the filtration chamber, and 11 is the outlet , 14 is a filter medium container, 15 is an airstone, 16 is a check valve, 17 and 18 are tubes, 19
is an inlet hole, 20 is a bulkhead, 24 is a lid, 33 is a water pump, 35 is a main body, 36 is an electromagnet, 37 is an arm, 38
42 is a diaphragm type pump device, 42 is a power cord, 45 is a protective case, 46 and 47 are tubes, and 51 is a filter material.

Claims (1)

[Scope of utility model registration request] Generate bubbles in the water pump with an air pump,
In a fish tank filter that sucks the water in the fish culture into the filtration container body and discharges the filtered water filtered by the filtration container body from the filtration container body, the air pump is an air pump connected to the filtration container body. Built into the pump storage chamber, the air pump storage chamber has a hole that communicates with the inside and outside of the storage chamber, a connecting tube surrounding the hole, and a protective tube surrounding the connecting tube in a lid that closes the opening surface of the air pump storage chamber. and connect the power cord to the air pump by passing the power cord through the tube and hole,
A filter for a fish tank, wherein one end of a tube concentrically covering the power cord is connected to the connecting tube, and air is sent into an air pump housing chamber through a gap between the tube and the power cord.