JPH0626328Y2 - Vortex filter with automatic ejection mechanism - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a swirl type filter provided at a connecting portion between various water tanks and water absorption pipes, and in particular, an elongated foreign matter such as hair and fibers. The present invention relates to a vortex flow type filter which is improved so as to be efficiently removed and automatically discharged.

[Conventional technology]

Although various shapes and materials are used for the filters provided at the connection between the water tank and the suction and drain pipes, the filters used for domestic and commercial water tanks (for example, bathtubs) are simple and easy to maintain. Inance is required to be easy.

For this reason, a filter used for a bathtub or the like is generally of a type in which water or hot water is passed to separate foreign matters.

FIG. 2 is a schematic system diagram showing a forced circulation type bath.

The hot water in the bathtub 1 passes through the filter 2, is sucked into the pump 4 via the water absorption pipe 3, is heated by the burner 6 when passing through the heat exchanger 5, is refluxed into the bathtub 1 through the connection fitting 7, and is circulated. To do.

FIG. 3 is a schematic system diagram of a bubble bath.

The hot water in the bathtub 1'passes through the filter 2 ', is sucked into the pump 4 via the water suction pipe 3, and is pressurized, and then the bubble bath nozzle 8 is used.
At this time, air bubbles are mixed and ejected into the bathtub 1'as indicated by an arrow a.

[Problems to be solved by the device]

Like the hot water and water in the bathtub illustrated above, long and thin foreign objects such as hair are suspended in the hot water and water that touch the human body.

If foreign matter of this kind is to be separated and removed by a filter, the capture rate will not be so good even if a fine mesh filter is used. If a filter with a finer mesh is used, the water flow resistance will be greater and the pressure loss will be greater, reducing the pump performance.

In addition, even if a filter with a fine mesh is used, clogging by foreign matter progresses with use and pressure loss increases.

In addition, when removing the captured foreign matter for cleaning, long and thin foreign matter such as body hair is entangled in the filter, which requires a great deal of labor.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a maintenance-free filter with low water resistance, less clogging, and maintenance.

[Means for Solving the Problems]

To achieve the above object, the filter of the present invention is provided with a swirl chamber, an opening is provided in a wall of the swirl chamber, and a lid which is opened and closed by buoyancy of water is provided to cover the opening.

In FIG. 1 (B) corresponding to the embodiment of the present invention, 12 is a swirl chamber, and its AA cross section is as shown in FIG. 1 (A).

The swirl chamber 12 has a cylindrical shape as shown in both FIGS. (A) and (B), has a top wall 12a, and has a cap shape without a bottom.

In the present invention, the terms "top" and "bottom" of the swirl chamber are terms for facilitating the understanding of the shape and do not mean the vertical direction thereof.

The cap-shaped swirl chamber 12 is attached to a water absorption chamber 14, and a water absorption pipe 16 is connected to the water absorption chamber 14.

A water absorption hole 13 is provided on the side wall of the cylindrical swirl chamber 12, and surrounding water (including hot water, the same applies hereinafter) is along the center line of the water absorption hole as shown by arrows b, b ', b ". Inflow.

The water suction hole 13 is arranged eccentrically with respect to the cylindrical swirl chamber 12. In the present invention, the water absorption hole is eccentric means that when the cylindrical swirl chamber 12 is viewed in the direction of its center line as shown in FIG. 1 (A), the center line of the water absorption hole (arrow b,
b ′, b ″) does not intersect the center point O of the cylinder.

An opening 12b is provided in the lower wall of the swirl chamber 12, and a lid 17 having a specific gravity smaller than that of water is hinged so as to be openable / closable as indicated by an arrow ud shown in FIG. 1 (B).

[Action]

In the swirl type filter constructed as described above, the hot water flows into the swirl chamber 12 as indicated by arrows b, b ', b "and swirls as indicated by arrows c, c', c".

Therefore, slender foreign matter such as body hair and fibers are entangled with each other to form a so-called pill.

Even if it is a slender foreign matter, if it becomes a pill, it will hardly pass through even if the mesh 15 has coarse meshes.

When the bathtub is filled with hot water, the lid 17 floats up and closes the opening 12b, and the swirl chamber 12 functions as described above to entangle the slender foreign matter in the hot water with each other to form pills. .

Then, when the hot water is discharged after the use of the bathtub, the lid 17 which is floated by the buoyancy of the hot water in the bathtub is rotated downward by its own weight to open the rotation 12b. As a result, the swirl chamber 12
The pills formed inside fall by their own weight and are automatically discharged.

As will be easily understood from the above-mentioned action, in the present invention, the “lid having a lighter specific gravity than water” means that the apparent specific gravity is lighter than that of water. True specific gravity does not matter.

〔Example〕

FIG. 1 shows an embodiment of a vortex type filter according to the present invention. The same figure (B) is a longitudinal sectional view, and the AA cross section is the same figure.
Shown in (A).

A water absorption chamber 14 is fixed to penetrate the wall of the bathtub 11, and the water absorption chamber 14 is connected to a suction port of a pump (not shown) via a water absorption pipe 16.

The swirl chamber 12 is formed in a cylindrical shape having a closed bottom, and its bottom opening is detachably attached to the water absorption chamber 14. 12a is the top wall, and in this example, the top wall is installed toward the center of the bathtub.

The side wall (cylindrical wall) of the cylindrical swirl chamber 12 has three suction holes.
13 are provided.

When the present invention is implemented, the number of water absorption holes to be arranged can be set arbitrarily.

The surrounding water flows into the swirl chamber 12 in the direction along the center line of the water suction hole 13, and whirls as shown by arrows c, c ′, c ″ in FIG. The water flows into the water absorption pipe 16 as indicated by an arrow d in the figure.

The opening 12b is provided at the lowest position of the cylindrical side wall of the swirl chamber 12, and the lid 17 is hinged so as to cover the lower side so as to be rotatable as indicated by the arrow u-d.

The lid 17 of this example is made of synthetic resin so that its apparent specific gravity is smaller than 1.

A mesh 15 is installed along the boundary between the swirl chamber 12 and the water absorption chamber 14. The net 15 of this example is a flat plate-shaped member having a coarser mesh than the conventional example. Therefore, the water flow resistance of the net alone is smaller than that of the conventional example.

When the water flowing into the swirl chamber 12 swirls as shown by the arrows c, c ′, c ″, the long and thin foreign substances such as body hair and fiber debris suspended in the water become entangled with each other to form pills. ,network
Even if 15's eyes are coarse, they can hardly escape.

In the conventional example of a bathtub filter, the capture rate of foreign matter is generally
It was about 60%, but the capture rate of the swirl filter of this example was
It was confirmed by experiment that it was 98%.

Moreover, since the foreign matters are pills, they are not entangled with the net 15, and there is no risk of clogging the net.

When the bathtub 11 is being used, since it is filled with hot water, the lid 17, which is lighter than water, receives the buoyancy of the hot water and ascends as shown by the arrow u to cover the opening 12b.

And when the bath water is drained after finishing using the bathtub,
The lid 17 loses its buoyancy and descends by its own weight as shown by the arrow d to open.

Therefore, the pill formed in the swirl chamber 12 automatically falls and is discharged to the outside of the swirl chamber.

As can be easily understood from the above operation, in order for the filter of the present embodiment to achieve the intended purpose, the swirl chamber 12 only needs to have a hollow cylindrical portion inside, and the shape of the outer peripheral surface. It doesn't matter.

In the present invention, the cylindrical vortex flow chamber means a cylindrical vortex flow chamber whose inner peripheral surface is a cylindrical surface, and the outer peripheral surface is not necessarily required to be a cylindrical surface.

In the embodiment shown in FIG. 1, the swirl chamber filter of the present invention is installed at the connection between the bathtub and the water absorption pipe as an example of the water tank, but the scope of application of the present invention is limited to the bathtub. is not.

[Effect of device]

As described above, when the swirl type filter of the present invention is applied, the water flow resistance in the state where cleaning is completed is small,
Moreover, clogging caused by use is extremely slight. In addition, since the captured foreign matter can be automatically removed, maintenance is extremely easy.

[Brief description of drawings]

FIG. 1 shows an embodiment of the vortex type filter of the present invention. FIG. 1A is a sectional view taken along the line AA shown in FIG.
(B) is a vertical sectional view. FIG. 2 is a schematic system diagram of the forced circulation type bath, and FIG. 3 is a schematic system diagram of the bubble bath. 11 …… tub, 12 …… vortex chamber, 12b …… opening, 13 …… water absorption hole, 14 …… water absorption chamber, 15 …… mesh, 16 …… water absorption pipe, 17 ……
lid.

Claims (1)

[Scope of utility model registration request] 1. A cylindrical swirl chamber having a bottom, a water absorption hole provided on a side wall of the swirl chamber, a water absorption chamber connected to a bottom opening of the swirl chamber, and a water absorption chamber connected to the water absorption chamber. A water pipe,
And a flat plate-shaped filter arranged to partition the flow path between the swirl chamber and the water absorption chamber, wherein the opening of the water absorption hole provided on the side wall of the cylindrical swirl chamber is with respect to the center line of the cylinder. And an opening for discharging foreign matter is provided on the wall of the cylindrical swirl chamber, and a lid-like member having a specific gravity smaller than that of water is hinged to the opening so as to be openable and closable. A vortex flow filter with an automatic discharge mechanism, wherein the lid-like member has a structure that covers the opening when it floats due to the buoyancy of water.