JP2000308882A - Water purifier displaying exchange time - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to easily presume that contamination of a water purifier has reached the limit. SOLUTION: This water purifier is provided with a water turbine 6 provided in a water path of the water purifier, speed reduction mechanisms 17, 19, 20, 21 for reducing and transmitting revolution of the water turbine, a display part formed in the final stage of the speed reduction mechanisms, and a window 13 enabling to look display of the display part from the outside, at the outer wall housing the speed reduction mechanisms. The exchange time of the water purifier can be presumed by appearing of the display part on the window, when the water turbine 16 has rotated by a prescribed number of revolutions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier for indicating replacement time based on the amount of water passing through the water purifier.

[0002]

2. Description of the Related Art Water purifiers for attaching tap water to a tap are commercially available. This water purifier is provided with a filter formed of activated carbon and hollow fibers inside. Water coming out of the faucet is filtered in the process of passing through activated carbon and hollow fibers,
Impurities are to be removed. These impurities adhere to activated carbon and hollow fibers and remain in the water purifier, so that the inside of the water purifier gradually becomes dirty. In order to check the degree of dirt, there is a water purifier with a transparent window opened on the outer wall so that dirt inside can be monitored. And
In order to indicate that the dirt is approaching the limit, a dirty-colored frame is fitted to the edge of the window, and the filter color is approaching the color of the frame, indicating the time for replacing the water purifier.

[0003]

The dirt on the water purifier changes minutely with the time of use, and the color of the dirt on the filter is not uniform depending on the water quality. Most of the activated carbon is black, so that the color showing the dirt is dirty. In comparison with the sample, it is difficult to tell that the internal dirt has reached its limit. An object of the present invention is to provide a water purifier that displays a replacement time at which it can be easily inferred that the dirt of the water purifier has reached a limit.

[0004]

According to the present invention, a water turbine is provided in a water channel of a water purifier for filtering and purifying tap water, and the rotation of the water turbine is transmitted to a display unit via a speed reduction mechanism. Then, when the water wheel is rotated by a predetermined amount, this display section is made to appear on a window provided on the outer wall of the housing of the speed reduction mechanism. When the amount of water passing through the water purifier reaches a certain amount, the display unit indicates on the window that it is time to replace the water purifier, so that it can be easily inferred that the dirt of the water purifier has reached its limit. The speed reduction mechanism is constituted by a plurality of gear groups, and one tooth provided on the main driving gear side is meshed with the entire peripheral gear of the driven gear, and when the main driving gear makes one rotation, the driven gear is rotated by one pitch of the entire peripheral gear. In this way, a large reduction ratio can be obtained.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 shows a cross section of a water purifier, in which a water supply port 2 and a drainage port 3 are opened in a main body 1 of the water purifier, and water entering from the water supply port 2 passes through a first water channel 4 and is guided to an upper part of a filter chamber 5. I will The filter chamber 5 is provided with a layer containing activated carbon 6 in the upper part and a layer in which hollow fibers 7 are bundled in the lower part. The filter is composed of activated carbon 6 and hollow fibers 7 in two stages. The upper and lower portions of the filter chamber 5 are closed with a mesh-shaped lid 8. An empty room 9 serving as a second waterway is provided below the filter room 5.
Is provided, and a water wheel room 10 is provided thereunder. The water turbine room 19 is provided with the drain port 3. On the other hand, in the vacant room 9, a third channel 11 is provided in a portion facing the drain port 3.

[0006] A gear chamber 12 (housing portion) containing first to sixth gears (reduction mechanism) is provided on the first water passage 4. outer wall)
Is provided with a window 13 through which the surface of the last gear can be viewed. At the center of the filter chamber 5, there is provided a hollow column 14 penetrating through the center of the filter chamber 5 from the water turbine chamber 10 to the gear chamber 12. A rod 18 that connects a propeller-shaped water wheel 16 provided in the water turbine chamber and a first gear 17 of the gear chamber 12 is rotatably inserted into the hollow column 14.

The first gear 17 is provided with one tooth 17a as shown in FIG.
9 are engaged with all the peripheral teeth 19a. That is,
When the first gear 17 makes one rotation, the second gear 19 becomes the full circumference tooth 1
It rotates by one pitch of 9a. The second gear 19 is integrally formed with a small-diameter third gear 19 b provided with one tooth, and the third gear 19 b meshes with the entire peripheral teeth 20 a of the fourth gear 20. The fourth gear 20 is integrally formed with a small-diameter fifth gear 20 b provided with one tooth, and the fifth gear 20 b is connected to the sixth gear 21.
Of the teeth 21a. 6th gear 2
A marker 21b (display unit) facing the window is locally displayed on the upper surface of 1. Since this marker indicates the limit of purified water, it may be a red striped pattern, it may be a character like "Please replace it", and even if you draw an illustration showing bikin etc. good.

The first, third and fifth gears (17.19)
b. One tooth of 20b) is set at a position where the meshing with the counterpart gear is farthest when the water purifier has not been used even once. In the sixth gear, the marker is set at a position farthest from the window 13 when viewed from the rotation direction of the sixth gear. That is, first, the first gear 1
The tooth of No. 7 makes almost one rotation and meshes with all the peripheral teeth 19a of the second gear 19, and the third gear 19b also makes almost one rotation and the fourth gear 20
The fifth gear 20b is set so as to mesh with the entire peripheral teeth 21a of the sixth gear 21 by substantially one rotation. Second and fourth. The sixth gear (19.
20.21) is always held by the braking member 22 at a position where it meshes with one tooth of the first, third and fifth gears (17.19b.20b). The braking member 22 includes second, fourth,. The sixth gear is prevented from rotating unnecessarily.

[0009] The water sent from the water supply port 2 of the water purifier is introduced into the filter chamber 5 through the first water channel 4, and impurities are filtered in the process of passing through the filter chamber 5. The water that has passed through the filter chamber 5 passes through the empty room 9 and passes through the third channel 1
1 flows through the water turbine room 10 to the drain port 3. At this time, the water wheel 16 in the water wheel room 10 is rotated by the outflowing water, and the water wheel 10 sequentially rotates the first gear to the sixth gear. Since the teeth of the first, third, and fifth gears provided in the gear chamber 12 have only one tooth, the counter gear is rotated by only one pitch every rotation. Therefore, the number of rotations of the water wheel 16 is an extremely large value for rotating the sixth gear 21 once.

As described above, the rotation of the water wheel 16 is controlled by the sixth gear 21.
If the reduction gears of each gear are set to 1/50, for example, the sixth gear 21 has a water wheel 16 of 125,
One rotation after 000 rotations. When the amount of water required for one rotation of the water turbine 16 is set to 10 CC, the marker 21
By the time b appears in the window 13, 1250 liters of water have passed through the filter chamber 5. Assuming that ordinary households use 10 liters of water per day, 125 days (about 4 days)
Months later, the marker 21b is displayed on the window 13, and if the performance of the filter is set to this amount of water, it is known that the time for replacing the water purifier has come.

In the above embodiment, the first to sixth gears have been described. However, the present invention is not limited to this, and the number of gears may be changed or the setting of the amount of water necessary for one rotation of the water turbine may be changed. This makes it possible to arbitrarily set the display time of the marker with respect to the amount of water used. In addition, if a stopper is provided for holding the sixth gear 16 at a position where the sixth gear 16 has been rotated once, it is possible to continue to indicate that the filter replacement time has arrived. Furthermore, the sixth
If a recess is provided in the gear and the marker approaches the window, the braking material 22 falls into the recess and the sixth gear is slightly rotated so that the marker suddenly appears in the window. Can be known more clearly.

In the above embodiment, the gear chamber 12 is provided on the upper part of the water purifier main body 1. However, a gear chamber is provided adjacent to the water turbine chamber, and this is mounted on the drain port side of a commercially available water purifier. You may be able to. That is, the "water turbine provided in the water channel of the water purifier" described in the claims of the present invention,
It may be provided not only inside the water purifier but also in a water channel formed outside the water purifier.

[0013]

The water purifier of the present invention is provided with a water turbine in a water channel of a water purifier that filters and purifies tap water, and transmits the rotation speed of the water turbine to a display unit via a speed reduction mechanism. Then, the display of the display section is made to appear on a window provided on the outer wall of the speed reduction mechanism. When the amount of water passing through the water purifier reaches a certain amount, the display section appears in the window, so that it can be easily inferred that the dirt of the water purifier has reached the limit.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the inside of a water purifier of the present invention.

FIG. 2 is a perspective view showing a water wheel and a speed reduction mechanism.

[Explanation of symbols]

 12 Gear room (accommodating part) 13 Window 16 Waterwheel 21a Display part

Claims (2)

[Claims] 1. A water wheel provided in a water channel of a water purifier for filtering and purifying tap water, a speed reduction mechanism for transmitting rotation of the water wheel at a reduced speed, and a display unit formed at a final stage of the speed reduction mechanism. ,
A window that allows the display of the display unit to be viewed from the outside is provided on the outer wall of the storage unit that stores the speed reduction mechanism, and the display unit is made to appear in the window when the waterwheel has rotated a predetermined rotation. A water purifier that indicates when to replace. 2. The speed reduction mechanism comprises a plurality of gear groups, and the main driving gear is formed by meshing one tooth provided on the main driving gear with a peripheral gear of a driven gear meshing with the driving side gear. 1
2. The water purifier for indicating replacement time according to claim 1, wherein the driven gear is rotated by one pitch of the entire peripheral gear when rotated.