JP2000042073A - Bubble generator for bath - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the suction of wastes and to prevent catching at the time of inserting a filter case by loading and unloading a filter case provided on the water sucking side of a pump main body by a drawing system and reducing the size of a sliding gap between this filter case and the end of a pump water sucking port on a fixing side. SOLUTION: At the time of turning on a switch to operate a driving motor after installing a power source outside of a bathroom and installing the pump main body in a bathtub, water is sucked from the lower side of a main body case, passes through a filter in the filter case 22 and through the inside of a pump casing from the water sucking port 14 and is jetted from a jetting port by the rotation of a runner 12. At the same time, air is taken in from an air sucking hose and bubbles are jetted from a jetting port. At the time of cleaning or exchanging the filter 21, the case 22 is drawn from the rear side of a back surface case. Thus the case 22 is guided by a drawing guide 23 and a tilted guide wall 15 smoothly and without gap.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a bath bubble generator for placing a power supply outside a bathroom, setting a pump body in a bathtub, and creating and spraying a bubble water flow.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, an L-shaped pipe is attached to a pump suction port, and a filter case accommodating portion provided with a part of a rear wall of the main body recessed inward is provided on a pump side wall. In addition, the filter case for accommodating the filter was made detachable by a nail hanging method.

[0003]

Conventionally, since the filter case has been hooked and fixed by means of a nail, there have been problems in that it is difficult to adjust the mounting / detaching force in manufacturing, it is difficult to attach / detach, and the nail is easily put on.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a filter case provided on the water absorption side of a pump body by using a drawer system with good operability. This solves the problem of how to reduce the slide gap between the drawer filter case that slides and the end of the pump suction port that is fixed.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The outer shell of a pump body is best divided into two sections in vertical section of the fuselage in terms of product assembling and outer shell case production, and is divided in the drawing guide direction of the filter case. Therefore, the engagement receiving portion of the drawer guide that receives the drawer guide wall provided at the distal end of the pump water intake port is provided only with a radius portion due to die cutting.

The substantial gap between the pump suction port and the filter case at the portion engaged with the drawer guide is the gap between the filter case and the drawer guide. However, the gap between the filter case and the radial portion that is not engaged is the gap between the tip of the pump suction port and the filter case. Here, the fitting of the drawer guide wall at the tip of the pump water inlet and the engagement receiving portion of the drawer guide prevents the filter case from being inserted if the drawer guide wall at the tip of the pump water suction pops out to the filter insertion side of the drawer guide.

To avoid this, taking into account manufacturing tolerances during mass production, the tip of the pump suction port is inserted into the drawer guide side of the drawer guide wall by 1-2 times from the filter side of the drawer guide.
mm. For this reason, the gap between the filter case of the semicircular portion without the engagement receiving portion of the drawer guide and the tip of the pump water inlet is also 1 to 2 mm, which sucks dust from the suction bath water and causes a pump lock.

On the other hand, according to the present invention, the draw-in guide wall at the tip of the pump suction port is inclined toward the pull-out and insertion direction to make the gap with the filter case at the tip zero, thereby preventing dust from being sucked in. It is possible to realize a drawer-type filter system with good operability that prevents the filter case from being caught when inserted.

[0009]

An embodiment will be described with reference to the drawings. FIG. 1 is a plan view of the bath bubble generator with a part of an outer case of a pump main body removed, in which two drive motors are unique. FIG. 2 is a longitudinal sectional view of FIG. FIG. 3 is an enlarged cross-sectional view of a main part of part B of FIG. FIG. 4 is a view on arrow AA of FIG. FIG. 5 is a detailed view of the filter. FIG. 6 is an external view of the power supply.

In FIG. 1, reference numeral 30 denotes a pump body of a bath bubble generator, which is constituted by the following parts. Reference numeral 1 denotes a drive motor for rotating the pump runner. Reference numeral 2 denotes a motor case for accommodating the driving motor 1, which has an opening 3 at the lower portion through which the shaft of the driving motor 1 penetrates, and a mounting wall 5 around which an oil seal 4 for ensuring watertight rotation is attached. And concentric circles.

The upper surface of the motor case 2 is opened for mounting the drive motor 1. After the mounting, wiring for voltage application is performed, and the motor cover 7 is screwed with a plurality of screws 8 via a rubber packing 6 for ensuring watertightness. It stops and keeps watertight inside the motor case 2. A cord 10 for connecting to a separate DC12V power supply 9 on a part of the upper surface of the motor cover 7
Are kept watertight and taken out.

A pump casing 11 is screwed to a lower portion of the motor case 2, a runner 12 is press-fitted into one shaft of the driving motor, and a casing cover 13 is screwed. A water suction port 14 for sucking water is opened at the center of the lower surface of the casing cover 13, and a ring-shaped guide wall 15 is formed around the water suction port 14. The portion is formed to be inclined so as to be higher.

A throttle nozzle 17 is formed in a part of a flow path toward the jet port 16 in a centrifugal shape integrated with the casing 11. An opening for mounting an air suction hose 18 is formed in a part of the throttle nozzle 17 of the casing 11.

Reference numerals 19 and 20 denote a two-piece outer case (body case) for covering the pump body, 19 a rear case, and 20 a back case.
Denotes a front case in which a handle for carrying and driving is integrally formed. A drawer guide 23 is formed in the main body case at the lower end of the pump water inlet 14 for taking in and out a filter case 22 for accommodating a filter 21 for filtration. A ring-shaped guide wall 1 of the casing cover 13 is formed at the tip of the drawer guide 23.
5.

However, the rear case 19 of the main body case
Since the drawer guide 23 is made of a two-piece mold in terms of molding and manufacturing, the drawer guide 23 can correspond only to a substantially semicircular portion of the ring-shaped guide wall 15 of the casing cover 13, and the filter case 22 in the remaining semicircular portion. Is to come into direct contact with the ring-shaped guide wall 15 without the intervention of the drawer guide 23 (see FIG. 4).

Here, the height of the distal end of the guide wall 15 is inclined downward toward the insertion direction of the filter case 22, and the engaging portion between the drawer guide 23 and the guide wall 15 is a front end of the filter case 22 in the insertion direction. , The guide wall 15 is located at a substantially middle portion of the thickness of the drawer guide 23, descends in the insertion direction, and comes into contact with the filter case 22 at the forefront. Therefore, when the filter case 22 is inserted, the filter case 22 can be inserted without being caught on the guide wall 15, and further, the ring-shaped guide wall extends in an inclined manner in a portion that is separated from the drawer guide 23, thereby minimizing a gap between the guide wall 15 and the filter case 22. Therefore, the bath water is not directly sucked from this portion without passing through the filter 21.

Reference numeral 25 denotes an injection nozzle (injection port) which is provided at the injection port 16 of the pump body and guides the bubble water flow to the outside in a free direction.
, And are rotatably mounted.

The power supply 9 shown in FIG.
Is a switch which turns on and off the power supply to the pump body by a connector attached to the end of the cord 10 from the pump body 30. Numeral 27 denotes an air intake ball which is attached to the tip of the air suction hose 18 and also serves as a float.

Next, the operation of the above configuration will be described.

The power supply 9 is placed outside the bathroom, and the pump body 30
Is set in the boiling bathtub, and when the switch 26 is turned on, the drive motor 1 starts operating. Then, water is sucked in from the lower part of the main body case and the pump casing 1 is drawn through the water inlet 14 through the filter 21 in the filter case 22.
Water is spouted from the spout 16 by the rotation of the runner 12 via the inside 1. At this time, air is taken in by the air suction hose 18 and bubbles are ejected from the injection port 25.

If the filter 21 has been used for a long period of time, dust and hair in the bathtub adhere to the filter 21.
1 requires cleaning or replacement. For this purpose, the filter case 22 is pulled out from the rear of the rear case 19, the filter 21 is taken out, cleaned, stored again in the filter case 22, and the filter case 22 is inserted from the rear case 19 side.

At this time, the drawer guide 23 and the inclined guide wall 15 are provided on the case side, so that the filter case 22 can be smoothly inserted and removed without any gap.

[0023]

The present invention is embodied in the form described above and has the following effects.

Cleaning of the filter for filtration at the time of suction of bath water is an indispensable maintenance item when using the product, and improvement of operability is an important issue, but this point has been solved. In other words, the drawer method is the best in terms of operability, but in this case, it is possible to realize the problem of eliminating the gap between the filter case and the pump suction port and eliminating the possibility of being caught without cost. It is a thing.

With the above structure, the gap with the pump suction opening end can be minimized in spite of the filter case withdrawal method, and unfiltered bath water is prevented from flowing directly into the pump suction port. ,
There is no need to draw hair or the like and wrap it around the pump runner to lock the pump.

[Brief description of the drawings]

FIG. 1 is a plan view of a bath bubble generator with a part of an outer case of a pump body removed.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is an enlarged sectional view of an essential part of a portion B in FIG. 2;

FIG. 4 is an enlarged view taken along the line AA of FIG. 3;

FIG. 5 is a detailed view of a filter.

FIG. 6 is an external view of a power supply of the bath bubble generator.

FIG. 7 is a conventional structural view of a pump body including a filter case.

[Explanation of symbols]

1: drive motor, 14: water inlet, 15: guide wall, 2
1: filter, 22: filter case, 23: drawer guide, 25: injection nozzle (injection port)

Claims (3)

[Claims] The present invention uses one or two centrifugal pumps driven by an electric motor, has one or two injection ports, and the center axis of the electric motor and the injection port of the centrifugal pump are eccentric. A bath air bubble generator having a concentric water suction port extending in the axial direction, and a filter case for accommodating a filter for sucking and filtering water on the lower surface of the water exchange port, which can be detachably attached to the back of the main body case. 2. The bubble generator for a bath according to claim 1, wherein an opening end of the pump suction port and a filter case suction port are provided. 3. The bubble generator for a bath according to claim 1, wherein the opening end of the pump suction port is inclined toward the filter case insertion direction.