JP2597349Y2 - Water purifier - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier provided with a mechanism for displaying a waste water amount.

[0002]

2. Description of the Related Art Conventionally, water to be filtered, for example, water sent from tap water is filtered to remove impurities such as bacteria, rust and other metal impurities, and residual chlorine contained in the water to be filtered. A water purifier is used. FIG. 4 shows a conceptual diagram of a simple household water purifier attached to a water tap as an example of such a water purifier.

[0003] In FIG. 4, reference numeral 51 denotes a mounting port, which connects a water-supply faucet 50 to an internal pipe of a water purifier in a watertight manner via a packing (not shown). Reference numeral 52 denotes a pipe line switching unit. The pipe line from the mounting port section 51 is supplied to the pipe line for allowing tap water to flow out without filtering, and the pipe line for sending to the filtration chamber 53 by operating the knob 54. This is the part that switches. The filtration chamber 53 is a part that filters the tap water by absorbing impurities contained in the supplied tap water with the built-in activated carbon filter 55 and hollow fiber filter 56. The outlet 57 is a port for allowing the filtered purified water to flow out.

However, in this conventional water purifier, impurities are simply adsorbed on the activated carbon or hollow fiber filters 55 and 56, and therefore, germs in the impurities are not sterilized. Further, the inside of the filtration chamber is always used while being immersed in water. Therefore, when the water supply is not used for a long time at night or the like, there is a problem that various bacteria grow in the filtration chamber based on the bacteria adsorbed on the filters 55 and 56. In this case, in the filtration chamber, there is a very high probability that germs as a breeding source are present in the filter, there is no water flow, and the residual chlorine contained in the tap water is already in the activated carbon filter 55. Since the bacteria are not adsorbed and sterilized by chlorine, and the temperature is higher than that in the water pipe, and it is easy to become a breeding ground for the propagation of various bacteria, the concentration of the bacteria may be higher than the tap water before filtration.

[0005] Therefore, immediately after the use of purified water is resumed after the use of purified water has been stopped for a long time, water having a high concentration of various bacteria that has accumulated in the filtration chamber flows out. In this case, there is a danger that health may be adversely affected. Therefore, when the water purifier is used, a certain amount of water must be discharged and discarded in advance in order to discharge water remaining in the filtration chamber and wash out various bacteria that cannot be captured by the filter.

However, in the conventional water purifier, there is no means for measuring and displaying the amount of the discarded water, and the amount of the discarded water depends only on the feeling of the user. For this reason, there is a hygiene problem in which too much water is discarded and water with a high concentration of various bacteria is used by mistake, and there are too many wastewaters in terms of economy in wasting water and shortening the life of the filter. Had a problem.

[0007]

[Purpose of the present invention] The present invention has been made based on the above awareness of the problem. It displays the amount of waste water, solves the above-mentioned problem caused by excess or shortage of waste water, and uses it sanitarily and economically. The aim is to provide a water purifier that can.

[0008]

[Summary of the Invention] In order to achieve the above object, the water purifier according to the present invention has a filtration chamber in which water to be filtered is introduced and a filter for filtering the water, and the water filtered in the filtration chamber is externally provided. A water purifier having an outlet for flowing out to the
To measure the amount of water flowing through the water purifier ,
It has a water wheel that rotates due to the water pressure of the outflow water, and this water wheel
Measuring means for measuring the total amount of rotation of the
And a display means for displaying that the amount of water required to wash out the water retained in the filtration chamber flows through the water purifier based on the total rotation amount of the water turbine .

[0009]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 2 is a perspective view showing the appearance of the water purifier according to this embodiment, and FIG. 1 is a front view showing the internal mechanism in a partial cross section.

The water purifier 1 to which the present invention is applied comprises a water supply pipe mounting portion 2, a water purifier main body 3, and an outflow portion 4 in FIG.

The water supply pipe mounting part 2 is provided with a water purifier 1
The water purifier body 3 is attached as shown in FIG.
The faucet B tip is taken into the opening 2a communicating with the inside, and the faucet B
Is fixed in a watertight manner with the axis aligned. Although not shown, a rubber packing is provided at the step in the opening 2a with which the tip of the faucet B contacts, in order to increase watertightness.

The main body 3 of the water purifier transmits a power of a filter chamber 3a containing a filter 5 made of activated carbon or hollow fiber for filtering tap water sent from the water supply pipe mounting portion 2, and a water wheel 6 described later. Gear chamber 3b accommodating a reduction gear train 7 to be driven, a worm gear chamber 3c accommodating a worm gear 11 driven by the reduction gear train 7, and an indicator chamber 3d accommodating an indicator 8 (see FIG. 3).
And a display window 9 of an indicator 8 and
It has a reset knob 15a.

The outlet 4 is provided at the lower end (opening 2) of the water purifier main body 3.
a), which is connected to the filtration chamber 3a, and through which the purified water filtered by the filter 5 sent out therefrom flows out to the outside, and the outflow pipe 4a for accommodating the water turbine 6 therein. Has a water wheel chamber 4b provided to be recessed from the inner wall along the outer diameter of the water wheel 6.

Next, a mechanism for measuring and displaying the amount of waste water will be described in detail.

The water wheel 6 is rotatably supported in a water wheel chamber 4b such that its blades 6a are exposed in the outflow pipe 4a. When water flows into the outflow pipe 4a, the blades 6a are rotated by the flow, and the rotation speed (the amount of rotation per unit time) becomes a value proportional to the flow rate (flow rate) of the water. The flow rate of water flowing inside can be measured.

A bevel gear 10a is fixed to the rotating shaft of the water wheel 6, and a driven bevel gear 10b meshes with the bevel gear 10a. The bevel gear 10b includes a shaft 1 rotatably mounted on a wall surface of the reduction gear chamber 3b.
0c. The shaft 10c extends into the reduction gear chamber 3b, and the leading gear 7a of the reduction gear train 7 is fixed in the reduction gear chamber 3b.

The reduction gear train reduces the rotation amount of the shaft 10c at a constant gear ratio and transmits the reduced rotation to the shaft 7c to which the final gear 7b is fixed. In this embodiment, the speed is reduced by three sets of reduction gears.

The shaft 7c extends from the inside of the reduction gear chamber 3b to the inside of the worm gear chamber 3c, and a worm gear 11 is fixed to an end of the shaft 7c. As shown in FIG. 3, a wheel gear 12 meshes with the worm gear 11. Here, FIG. 3 is a partial cross-sectional view showing only the vicinity of the surface on which the indicator 8 is incorporated, of the cross-section along the line II-II in FIG.

The shaft 1 to which the wheel gear 12 is fixed
3 is supported by bearings 14a and 14b provided on a partition wall 3e that partitions the worm gear chamber 3c. Also, since the bearing 14b allows the shaft 13 to penetrate, the tip 13c of the shaft 13 is
It is facing d.

In the indicator chamber 3d, the indicator wheel 15 is frictionally fitted to the tip 13a of the shaft 13 through a fitting hole 15b formed in the center axis of rotation. On the side opposite to the fitting hole 15b of the indicator wheel 15, a knurled truncated conical reset knob 15a is integrally provided on the side. Since the reset knob 15a faces the outside from the through hole 3g provided in the front wall 3f of the water purifier main body 3, it can be rotated from the outside. In this case, the worm gear 11
Since the reverse transmission efficiency of the wheel gear 12 and the wheel gear 12 is set to be very small, a very large torque is required only by rotating the wheel gear 12 and following the worm gear 11. Therefore, if at least the shaft 13 and the indicator wheel 15 are fitted with a weaker frictional force, only the indicator wheel 15 can be idled.

On the peripheral surface of the indicator wheel 15,
A pointer 16 is implanted. The tip of the pointer 16 faces the inside of the display section 9 having a fan-shaped transparent section provided on the front wall 3f of the water purifier main body 3. Note that stopper pins 17a and 17b are implanted on the partition wall 3e facing the inside of the indicator chamber 3d so that the pointer 16 does not rotate beyond the range displayed on the display unit 9. Therefore, the pointer 16 is connected to the stopper pin 17
If the driving force in the direction of the stopper pin 17b is still applied after the contact with the shaft b, the fitting portion between the shaft 13 and the indicator wheel 15 slides, and the shaft 13 idles.

On the partition wall 3e facing the display section 9, a display indicating the amount of discarded water is provided by means such as color coding.
In this embodiment, as shown in FIG. 2, the area from the position in contact with the stopper pin 17a on the left side to the center position of the rotation range of the pointer 16 is defined as a waste water range (NG), and the range on the right side can be used therefrom. Water range (OK).

The bevel gear 10a to the wheel gear 1
2, the reduction ratio of the entire gear train, the position of the water wheel 6, and the shape of the blades 6a are different from the flow rate when the amount of waste water required to wash the inside of the filtration chamber 3a flows through the outflow pipe 4a. The pointer 16 of the indicator 8 is set so as to rotate by the range of the waste water to reach the range of usable water (OK) (for example, the reduction ratio is on the order of 1: 600 to 800). In this setting, if it is assumed that the faucet is fully opened and the water purifier is used in a state where the water pressure of the water pipe is directly applied to the water purifier, the resistance in the filtration chamber 3a is sufficiently large. Since the amount of outflow from the outflow pipe per unit time is almost constant, it can be considered that a uniform torque is always applied to the water turbine.

The reduction gear chamber 3b, the worm gear chamber 3
c, If water enters the indicator chamber 3d or if impurities adhere to the movable part, it affects the driving torque of the water turbine 6 and the indicator 8 for the outflow amount.
In addition to the fact that the relationship of the amount of rotation of the pointer changes, accurate display is not possible, and the desired purpose cannot be attained because bacteria accumulate in the water retention portion and propagate. Therefore, it is desirable that these chambers 3b to 3c are watertightly isolated from the filtration chamber 3a and the water turbine chamber 4b, and that the bearings of the shafts are provided with a waterproof seal.

However, if the design is made on the assumption that water circulates in the chambers 3b to 3c from the beginning, the accuracy of the display can be secured by appropriately changing the gear reduction ratio. In this case, antibacterial treatment may be applied to all portions of each of the chambers 3b to 3c that come into contact with water. As the antibacterial treatment, it is conceivable to knead an antibacterial agent in advance into a synthetic resin as these materials and mold the resin, or to coat the surface with an antibacterial agent after molding.

Next, the operation of the embodiment configured as described above will be described.

When resuming use of the water purifier after not using the water purifier for a long time, first,
The reset knob 15c is rotated counterclockwise in FIG. 2 to bring the pointer 16 into contact with the right (start side) stopper pin 17a. In this case, for the above-described reason, the fitting portion between the indicator wheel 15 and the shaft 13 slips due to the application of a torque that overcomes the fitting frictional force, so that the hands 16 can be moved without driving the entire gear train. Can be rotated.

Thereafter, the water tap of the faucet B is opened to start water purification. The new tap water sent from the faucet B pushes the old water staying in the filtration chamber 3a to the outflow part 4 to generate a water flow in the outflow pipe 4a. This water flow rotates the water wheel 6 by the number of rotations corresponding to the flow rate. The rotation of the water wheel 6 is transmitted one after another while decreasing the number of rotations according to the bevel gears 10a, b, the reduction gear train 7, the worm gear 11, and the wheel gear 12, and finally the indicator. Pointer 16 implanted on wheel 15
Is rotated clockwise in FIG. At this time, based on the premise described above, the water tap is fully opened in order to secure the stability of the display of the indicator 8 with respect to the flow rate.

When water flows through the outflow pipe 4a by a predetermined amount necessary to wash out old water remaining in the filtration chamber 3a, the indicator 16 of the indicator 8 indicates the range of waste water (NG). To reach the usable water range (OK). Therefore, the user can know that necessary and sufficient waste water has been drained.

Thereafter, when the water purifier 1 is used, clean water is provided for drinking, cooking, etc., but the hands 16 gradually rotate clockwise according to the amount of water used. Then, when the accumulated usage amount becomes equal to or more than a certain value, the pointer 16 finally contacts the left (end side) stopper pin 17b. After this, water purifier 1
Although water turbine 6 is rotated also be used, since the rotation of the indicator wheel 15 is restricted by the guide 16 and the stopper pin 17b, the slip occurs between the shaft 13 and the indicator to case coater wheel 15, the pointer 16 is used The indication of possible (OK) is maintained.

If there is a period during which use of the water purifier 1 is interrupted, it is possible to judge that there is little possibility that bacteria will grow in the filtration chamber 3a during a short period of time. 16 indicates the usable range. On the other hand, if the time is long, the possibility that germs grow will increase. Therefore, the indicator 8 is reset and the water is discarded in the same manner as described above.

In the above embodiment, the water wheel 6 is installed in the outflow section 4 to measure the amount of water flowing out of the water purifier 1. However, the present invention is not limited to this. A water wheel may be installed in the unit 2 to measure the amount of tap water flowing into the water purifier 1. In the above embodiment, the water purifier according to the present invention has been described in example using the filtered water as tap water, the present invention is not limited thereto, for example, it may be used in well water or the like.

[Effects of the Invention] As described above, the present invention provides a filtration chamber in which water to be filtered is introduced and which has a filter for filtering the water.
In the water purifier having an outlet through which the water filtered in the filtration chamber flows out, in order to measure the amount of water flowing through the water purifier, the water is rotated by the water pressure of the outflow water.
A measuring instrument that measures the total amount of rotation of the turbine
Step and based on the total amount of rotation of the turbine from the measuring means
Te, the amount of water required to wash away the water that has accumulated in the filtration chamber, characterized in that it consists of a display means for displaying that the flow through the water purifier, it is possible to accurately display the discarded water It is sanitary and economical, because the amount of waste water is too small and water with high concentration of germs is used by mistake, and too much waste water does not waste water or shorten the life of the filter. It has an excellent effect that can be used in general.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of a water purifier according to an embodiment of the present invention.

FIG. 2 is a front view showing the internal configuration in a partial cross section.

FIG. 3 is a partial cross-sectional view taken along line 〓-〓 in FIG. 2;

FIG. 4 is a diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water purifier 2a Filtration chamber 4 Outflow part 6 Waterwheel 8 Indicator

Continuation of front page (56) References JP-A-6-165980 (JP, A) JP-A-6-182333 (JP, A) JP-A-6-285457 (JP, A) JP-A-63-270589 (JP) , A) Fully open 59-146096 (JP, U) Fully open 61-155091 (JP, U) Fully open 1-121817 (JP, U) Fully open 2-1295 (JP, U) Fully open 3-26390 (JP, U) Japanese Utility Model Hei 1-170493 (JP, U) Japanese Utility Model Utility Model 4-980 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) C02F 1/28

Claims (2)

(57) [Scope of request for utility model registration] 1. A method for introducing water to be filtered and filtering the water.
A filtration chamber containing a filter, and an outlet for discharging water filtered in the filtration chamber to the outside.
Measuring the amount of flowing water flowing through the inside of the water purifier.for,
It has a water wheel that rotates due to the water pressure of the outflow water, and this water wheel
Measuring means for measuring the total rotation amount of  The above measuring meansBased on the total rotation of the turbine from above
RecordThe amount of water required to wash away the water remaining in the filtration chamber
Display that the water flowed through the water purifierDisplay meansConsisting of
And a water purifier characterized by the following. 2. A measuring means for measuring a total rotation amount of the water turbine.
Is connected to the turbine to reduce the amount of rotation of the turbine by a certain amount.
A gear train that decreases in speed ratio and is connected to the end of this gear train
Consists of a shaft driven rotating Te, said display means, frictionally fits around the axis of the shaft
The wheel has a pointer, and the wheel has a reset knob that can be rotated from the outside.
The reset knob is rotated to operate the shutter.
Slide the shaft and the wheel in the direction of rotation,
2. The method according to claim 1, wherein the phase of the signal is variable.
Water purifier.