JPH11285450A - Bathtub cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eject nearly equal amounts of a detergent from each of the cleaning nozzles and clean entirely the inside of a bathtub by making the lengths of pipes to a pump from all the cleaning nozzles nearly equal in a bathtub where more than one cleaning nozzle is connected to a pump through pipes. SOLUTION: A cleaning nozzle 1 is provided on one short side wall of a bathtub 4 and cleaning nozzles 2, 3 are arranged opposite to each other on a pair of long side walls, the cleaning nozzles 1 to 3 are connected to the discharge side of a pump 5 through valves 1a to 3a, pipes 11 to 13 and a manifold 14. The suction side of the pump 5 is connected to a water source through a valve 6 and to a detergent tank 8 through a check valve 9. On this occasion, by making the lengths of pipes 11 to 13 nearly equal, the detergent and the like can be supplied equally to the nozzles 1 to 3 from the pump 5, and the inside of the bathtub can be cleaned evenly by making the amounts of jets from the nozzles 1 to 3 nearly equal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub cleaning apparatus for cleaning a bathtub by spraying a detergent or the like onto the inside of the bathtub.

[0002]

2. Description of the Related Art A bath tub cleaning apparatus in which a nozzle is provided on the inner wall surface of a bath tub and the inside of the bath tub is cleaned by spraying a detergent or the like from the nozzle is disclosed in Japanese Utility Model Laid-Open No. 5-94565 and Japanese Unexamined Patent Publication No. Hei 9-3.
It is well known as seen in US Pat.

In this type of bathtub cleaning apparatus, it is necessary to spray a detergent or the like evenly so as not to leave unwashed on the inner surface of the bathtub. In Japanese Utility Model Application Laid-Open No. 5-9465, a plurality of cleaning nozzles are provided in the bathtub. Provided. In the above-mentioned Japanese Patent Application Laid-Open No. 9-313381, the tip of the cleaning nozzle is configured to protrude from the wall surface of the bathtub so that it can be swung.

[0004]

SUMMARY OF THE INVENTION It is a first object of the present invention to provide a bathtub cleaning apparatus in which a detergent or the like is sprayed uniformly from each cleaning nozzle.

It is a second object of the present invention to provide a bathtub cleaning apparatus in which detergents and the like are injected from a washing nozzle at a high pressure immediately after operation and waste of the detergents and the like is significantly reduced.

[0006]

According to a first aspect of the present invention, there is provided a bathtub cleaning apparatus including a bathtub, a plurality of cleaning nozzles provided in the bathtub, and a pump connected to the cleaning nozzle via a pipe. In the bath tub cleaning apparatus, the lengths of the pipes from each cleaning nozzle to the pump are made substantially equal.

In such a bath tub cleaning apparatus, since the lengths of the pipes from the pump to the respective cleaning nozzles are substantially equal, the detergent and the like are uniformly supplied to the respective cleaning nozzles, and substantially equal amounts of the detergent and the like are supplied from the respective cleaning nozzles. Is injected.

According to a second aspect of the present invention, there is provided a bathtub cleaning apparatus having a bathtub, a cleaning nozzle provided in the bathtub, and a pump connected to the cleaning nozzle via a pipe. , A valve is provided immediately upstream of the valve, and the valve is opened after the pressure on the upstream side of the valve reaches a predetermined pressure.

In such a bathtub cleaning apparatus, after the pressure inside the pipe has become sufficiently high, the valve is opened and high-pressure detergent or the like is supplied to the washing nozzle. As a result, waste of detergent and the like is significantly reduced.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram showing the configuration of a bathtub cleaning apparatus according to the first and second embodiments of the present invention, and the bathtub is shown in a schematic plan view.

The cleaning nozzle 1 is provided on one short side wall of the bathtub 4, and the cleaning nozzles 2 and 3 are provided opposite to each other on a pair of long side walls. The cleaning nozzle 1,
2, 3 are valves 1a, 2a, 3a and pipes 11, 12, 1
3 and connected to the discharge side of the pump 5 via the collective piping 14. The collective pipe 14 is connected to the detergent tank 8 via the valve 7.

The suction side of the pump 5 is connected to a tap water source (tap water pipe) via a valve 6 and to a detergent tank 8 via a check valve 9. The check valve 9 allows only a liquid flow from the tank 8 toward the suction side of the pump 5.

The pipes 11, 12, and 13 are branched from the pipe 14 via joints. The pipe 11 has a loop 11
L is provided, and the lengths of the respective pipes 11, 12, 13 are substantially equal. For example, the difference between the lengths of the pipes 11 to 13 is within ± 5%.

The valves 1a, 2a, 3a, 6, 7 and the pump 5 are configured to be controlled by a common controller (not shown).

Each of the nozzles ₁ , ₂ , 3 has an injection angle θ ₁ , θ ₂ ,
so as to inject the water and detergent at θ _3. In this case, the nozzle 1 is set at θ ₁ such that the detergent or the like hits the inner surface of the bathtub farther than the vicinity of the installation portion of the nozzles 2 and 3. The nozzle 2 is set so that the detergent ₂ hits the inner surface of the bathtub farther than the vicinity of the installation portion of the nozzle 1, and the nozzle 3 is set so that the detergent hits the inner surface of the bathtub farther than the vicinity of the installation portion of the nozzle 1. θ ₃ is set. By setting θ ₁ , θ ₂ , and θ ₃ in this manner, the entire inner surface of the bathtub 4 can be washed evenly. Note that θ ₂ = θ ₃ in a normal case.

In this bath tub cleaning apparatus, piping 11,
Since the detergents and the like are supplied from the pump 5 to the nozzles 1, 2, 3 evenly with the lengths of the nozzles 12, 13 being substantially equal,
The spray amounts from the nozzles 3 are almost equal, and the inner surface of the bathtub can be washed without unevenness.

In this embodiment, the valves 1a, 2a, 3a are opened after the pressure in the pipes 11 to 13 reaches a specified pressure after a predetermined time has elapsed after the pump 5 is started. The valves 1a to 3a and the operation of the pump 5 are controlled by a controller. Therefore, the detergent is ejected from the nozzles 1 to 3 immediately after the ejection, so that the waste of the detergent due to dripping is eliminated.

The valve is preferably an electromagnetic valve. The nozzle is preferably of a spray type for spraying a detergent or the like.

Table 1 below shows an example of the operation of the bathtub cleaning apparatus according to the above embodiment.

[0020]

[Table 1]

In the operation example of this table, five operation modes are executed in addition to the stop mode.

In the stop mode, the pump 5 is stopped and the valves 1a, 2a, 3a, 7, and 6 are also closed.

In the first mode, the valves 1a to 3a, 6
Is opened, the pump 5 operates, only the clean water is injected, and the bathtub 4 is pre-washed with water.

In the second mode, only the valves 1a to 3a are opened, and the pump 5 operates. Thereby, the piping 1
The clean water in 4, 11 to 13 is replaced by the detergent. At this time, the clean water remaining in the pipes 14, 11 to 13 is sprayed from the nozzles 1 to 3.

In the next third mode, the valves 1a to 3a
And 6 are closed, the valve 7 is opened, and the pump 5 operates. Thereby, the detergent circulates between the pump 5 and the tank 8.

In the next fourth mode, only the valves 1a to 3a are opened, and the pump 5 operates. Thereby, the detergent remaining in the pipe 14 is jetted from the nozzles 1 to 3.

In the last fifth mode, the valves 1a to 3a and 6 are opened, the valve 7 is closed, and the pump 5 operates. Thereby, clean water is sprayed from the nozzles 1 to 3, and the inside of the pipes 11 to 14 and the bathtub 4 are washed (rinsed) with clean water.

In one example of the operation, the following modes (1) to (9) are sequentially performed.

(1) Execute the first mode for 120 seconds (2) Execute the second mode for 0.6 seconds (3) Stop for 10 minutes (4) Execute the third mode for 0.7 seconds (5) The fourth mode for 1.3 seconds Execution (6) Stop for 10 minutes (7) 0.7 seconds for the third mode, 1.3 seconds for the fourth mode, 1
Repeat the 0 minute stop cycle four times ((4) to (6))
Is repeated 5 times in total. (8) Third mode 0.7 seconds, fourth mode 1.3 seconds execution (9) Fifth mode 120 seconds execution As a result, one pre-cleaning of water and six times of cleaning (between each injection) There is a 10-minute break for each.) And one rinse of tap water is performed, and the bathtub 4 is sufficiently washed.

The third mode may be omitted. In addition, the above injection time is an example, and it is a matter of course that the injection time may be set to a number of seconds other than the above.

In the above operation, the pump 5 is operated when water is injected. However, the water may be injected only by tap water pressure without driving the pump 5.

In FIG. 1, the valves 1a, 2a and 3a are connected to each pipe 1
1, 12, 13 are provided, but pipes 11, 12, 13 are provided.
When the diameter is small or short, the valve 1a, 2a, 3a may be omitted, and one valve may be provided at the branch from the pipe 14 to the pipes 11, 12, 13 or upstream thereof. Also in this case, strong injection from each of the nozzles 1, 2, and 3 is possible.

FIG. 2 shows an embodiment of the second aspect of the present invention, in which a washing nozzle 10 provided in a bathtub 4 is provided with a valve 1.
0a is connected to the pump 5. Opening the valve 6 supplies water to the pump 5, and opening the valve 7 supplies detergent to the pump 5. After a predetermined time elapses after the pump 5 starts, the valve 10a is opened, so that the detergent is strongly sprayed immediately after the operation of the nozzle 10.
Thereby, dripping from the nozzle is eliminated, and waste of the detergent is prevented.

[0034]

As described above, according to the bathtub cleaning apparatus of the first aspect, the inner surface of the bathtub is uniformly cleaned. According to the bath cleaning apparatus of the second aspect, the waste of the detergent is significantly reduced.

[Brief description of the drawings]

FIG. 1 is a system diagram of a bathtub cleaning apparatus according to an embodiment.

FIG. 2 is a system diagram of a bathtub cleaning apparatus according to another embodiment.

[Explanation of symbols]

 1, 2, 3, 10 Cleaning nozzles 1a, 2a, 3a, 6, 7, 10a Valve 8 Detergent tank 9 Check valve 11, 12, 13 Piping

Claims (2)

[Claims] 1. A bathtub cleaning apparatus having a bathtub, a plurality of cleaning nozzles provided in the bathtub, and a pump connected to the cleaning nozzle via a pipe, wherein a pipe from each cleaning nozzle to the pump is provided. A bathtub cleaning device characterized in that the lengths are almost equal. 2. A bathtub cleaning apparatus having a bathtub, a cleaning nozzle provided in the bathtub, and a pump connected to the cleaning nozzle via a pipe, wherein a valve is provided immediately adjacent to the cleaning nozzle. A bath tub cleaning device wherein the valve is opened after the pressure on the upstream side of the tub reaches a predetermined pressure.