JP2003225656A - Water cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water cleaner which can plainly display an exchange time of cleaning cartridge and a plurality of other information to users. <P>SOLUTION: This water cleaner is provided with a raw water inlet port which is connected with a faucet and receives raw water, a switching valve which selects and switches whether the raw water is ejected as it is or is cleaned by the cleaning cartridge and is ejected as cleaned water, a switching display part which displays a switching state of the switching valve and a lever which operates the switching valve. Therein, the lever is rotatably supported at the fixed both ends and the switching display part is disposed on the outer side than the lever. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier equipped with a switching valve for selecting a flow path and a switching display section for displaying the selected flow path switching state.

[0002]

2. Description of the Related Art Conventionally, a water purifier provided with a switching valve for selecting a flow path and a switching display section for displaying a selected flow path switching state is disclosed in JP-A-6-178974. It is known that a display member is attached to a shaft portion of a switching valve and integrally rotated, and a mark indicating a switching state is marked on a portion of the display member corresponding to a display window. Before the faucet was opened, the user could look into the display window and look at the mark to know the current switching state.

However, in such a water purifier, since the display member is located between the switching valve and the lever, the display member has a fixing screw portion provided around the switching valve, It is necessary to design so as not to hit the reinforcing ribs, and it is difficult to make the display member large. Therefore, the mark on the display member is inevitably small and the display window is also small, so that there is a problem that the display is not easy for the user to see. In particular, in the case of a type in which the lever is supported on both sides, it is necessary to lengthen the lever when trying to enlarge the display member, so it becomes large in the direction of the user's hand,
There is a problem that it interferes with the work of the user.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a water purifier that displays the selected flow path switching state in a user-friendly and easy-to-understand manner.

[0005]

In order to achieve the above object, the present invention is to provide a raw water inlet connected to a faucet for receiving raw water, and to discharge the raw water as it is or purify it with a purification cartridge and discharge it as purified water. A switching valve for selectively switching the switching valve, a switching display portion for displaying the switching state of the switching valve, and a lever for operating the switching valve. The lever is rotatably supported on both sides. It is characterized by a water purifier provided with a switching display portion on the outside.

Here, the switching display unit is a liquid crystal display, and the switching display unit is provided with a rotation display member on which an illustration or a character indicating the switching state is printed, and the rotation display member is rotated. It is preferable that the switching state of the switching valve is displayed by doing so, and that the rotation axis of the rotation display member and the rotation axis of the lever are on the same line. In addition, the purification car
It is also preferable to provide a replacement time display section for displaying the replacement time of the ledge, or a faucet direct connection type which is supported and fixed to the faucet.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings, taking a faucet direct connection type water purifier attached to a faucet such as a kitchen at home as an example.

As shown in FIGS. 1 to 3, the water purifier of the present invention comprises a main body 2 having a switching valve built therein, a purification cartridge 3 containing a filter medium, and the like. The main body 2 is provided with a lever 5, and by operating the lever 5, the raw water flowing from the faucet 4 through the raw water inlet can be discharged as shower water as it is (raw water shower), or it can be stored as it is. It is switched by selecting whether to discharge it as raw water (straight water straight) or to supply it to the purification cartridge 3. The raw water supplied to the purification cartridge 3 is filtered by an adsorbent such as granular activated carbon, fibrous activated carbon, an inorganic ion exchanger, an ion exchange resin, ceramics, zeolite, or a hollow fiber membrane, and is purified water from the purified water outlet. Is ejected. If a titanium silicate salt, which has a high ability to adsorb soluble lead, is used as an inorganic ion exchanger, it also adsorbs soluble lead that is eluted from tap water pipes remaining in some ordinary households into tap water with high removal performance. Can be removed.

First, the main body 2 will be described.

As shown in FIG. 2, the main body portion 2 includes three balls 11a, 11b and 11c and a valve shaft 1 which form a switching valve.
2, a switching valve body 13, a raw water shower port 14, and
Raw water straight outlet 15 and purified water outlet 19 (see FIG. 6)
, A lower body 16 having a switch valve body 13, an upper body 17 having an opening through which the switching valve body 13 projects to the upper surface, a valve operating portion 18 for performing a switching operation, a cartridge cap 91 for fixing the purification cartridge 3, and a flow rate. Is added up and the result is displayed.

A ring-shaped packing 36 is attached to the switching valve main body 13, and a mounting nut 38 is screwed onto the switching valve main body 13 via an adapter 37 screwed into the male screw portion of the faucet 4, and the main body portion 2 Is attached to the faucet 4.

The switching valve body 13 has three water passages 2 inside.
By the partition plate 22 which opened 1a, 21b, 21c,
It is divided into an upper chamber 23 and a lower chamber 24.

In the upper chamber 23, there are three balls 11a, 1
1b and 11c are three water passages 21a, 21b and 21c
It is arranged to correspond to. With the ball 11a fitted in the water passage 21a and the water passage 21a closed, the lower portion of the ball 11a projects into the lower chamber 24. The same applies to the balls 11b and 11c.

The valve shaft 12 is rotatably inserted in the cylindrical lower chamber 24, and O-rings 25a, 25b, 25c arranged at predetermined positions of the valve shaft 12 are provided in the lower chamber 24. It is watertightly engaged with the wall surface. This allows the lower chamber 24 to
Flow path 31a leading to the raw water supply port 26 (see FIG. 6) for supplying raw water from the water passage 21a to the purification cartridge 3 and a flow passage 31b connecting the water passage 21b to the raw water straightening port 15. And a flow path 31c communicating from the water flow path 21c to the raw water shower port 14.

Further, as shown in FIG. 2, the valve shaft 12 is provided at a position facing the water passages 21a, 21b and 21c.
Cam portions 27a, 27b, 27c are provided. The cam portions 27a, 27b, 27c are provided so as to be displaced by 60 ° in the circumferential direction of the valve shaft 12, for example.
By selectively turning upwards by 60 degrees,
The water passage can be opened by pushing up the lower portion of the ball protruding into the lower chamber 24. That is, whether the water passages 21a, 21b, 21c are opened by rotating the valve shaft 12 by a predetermined angle by the valve operating unit 18 described later, and the raw water flowing in from the faucet 4 is discharged as shower water as it is. It is possible to select whether to discharge the water as it is or to supply it to the purification cartridge 3.

As the balls 11a, 11b, 11c, metal spheres as a core body covered with rubber are used. However, the shape of the valve body is not limited to a spherical shape, and may be a conical shape or a cylindrical shape. It can be shaped. And in order to improve the sealing property when the water passage is closed, the ball 11 provided in the upper chamber 23 is provided.
A, 11b, 11c may be biased from above by a spring or the like toward the water passage.

As shown in FIG. 6, a raw water supply port 26 for supplying raw water to the purification cartridge 3 and a purified water receiving port 29 for receiving purified water from the purification cartridge 3 are provided at the rear side of the switching valve body 13. And are provided. The raw water supply port 26 communicates with the flow path 31a, and the purified water receiving port 29 communicates with the purified water outlet 19 via the purified water supply passage 30. A water turbine 122 of a flow rate detection unit 102, which will be described later, is provided in the purified water supply passage 30.
A water wheel support member 123 is provided, and the water wheel 122 is rotated by passing purified water.

As shown in FIG. 3, the purification cartridge 3 is loaded in the main body 2 and the cartridge cap 91 is provided.
However, it is screwed and fixed to the lower body 16 and the upper body 17 (see FIG. 2) at a position where it covers the purification cartridge 3, and serves to fix the purification cartridge 3 at a predetermined position.

Next, the valve operating portion 18 for rotating the valve shaft 12 will be described with reference to FIGS. 3 and 5.

As shown in FIG. 3, the valve operating portion 18 is rotatably supported on both sides of the lever 5 and the switching valve body 13 so as to be rotatable. It comprises a rotating drive shaft 41, a torsion coil spring 44 having one end fixed to the lower body 16 and the other end fixed to the lever 5, and the like. When the lever 5 is pushed down in the direction of arrow A as shown in FIG. 5, the lever 5 rotates counterclockwise (when viewed from the right side in FIG. 3) until it comes into contact with the operation stopper 43, and the lever 5 operates. When the operation is stopped and the finger is released in the state of being in contact with −43, the torsion coil spring 44 rotates clockwise to return to the initial position.

FIG. 4 is a schematic sectional view taken along the line C--C in FIG. 3, showing a connecting portion between the lever 5 and the drive shaft 41. As shown in FIG. 4, a ratchet pawl member 47 is fitted into one end of the drive shaft 41, and the ratchet pawl member 47 meshes with ratchet teeth 48 of the lever 5 to form a ratchet mechanism. When rotating the lever 5 counterclockwise from the initial position (when viewed from the right side of FIG. 3),
The drive shaft 41 is integrated with the lever 5 in a counterclockwise direction by 40
When the lever 5 rotates, the lever 5 rotates clockwise and returns to the initial position, the drive shaft 41 does not rotate.

As shown in FIGS. 3 and 5, a spur gear 45 is provided on the drive shaft 41, and the spur gear 45 meshes with a spur gear 46 provided on the valve shaft 12. Since the gear ratio of the spur gear 45 and the spur gear 46 is 3: 2, the spur gear 45 is 4
When rotated by 0 °, the spur gear 46 rotates by 60 °. That is, when the lever 5 is operated once, the drive shaft 41 rotates 40 ° and the valve shaft 12 rotates 60 °.

Next, the display ring 5 will be described with reference to FIGS.
1 (rotation display member), the opening 81, the switching display unit 80 including the transparent member 82 and the like will be described.

As shown in FIG. 3, the characters "purified water", "straight" and "shower" indicating the switching state are arranged every 40 ° on the right side of the right end support portion of the lever 5, that is, on the outer side. A display ring 51 printed at each of three places is fixed. The display ring 51 is fixed to the right end of the drive shaft 41 and rotates integrally with the drive shaft 41. In the display ring 51,
The characters "clean water", "straight" and "shower" are printed, and "clean water" and "straight" are provided through the opening 81.
Either the letters "to" or "shower" can be seen so that the switching state can be easily confirmed. Since the display ring 51 is located further to the right of the right end support portion of the lever 5, that is, outside, it interferes with the fixing screw portion, gear, reinforcing ribs, etc. provided around the switching valve. It is possible to sufficiently increase the outer diameter and the width. Along with this, the lever does not become long and the lever does not become large in the hand direction of the user. Display ring 6
Since large characters can be printed on the outer circumference of 1, the display is very easy for the user to see. The display showing the switching status is
The characters and illustrations may be used alone or in combination. By attaching the transparent member 82 to the opening 81, water is prevented from entering the inside of the main body 2 and the display ring 51 is prevented from getting dirty when washing dishes.

Next, the electrical equipment (electronic circuit) for measuring the flow rate and calculating and displaying the result will be described.

The electrical component section includes a power source section 101 and a flow rate detecting section 1
02, the purification cartridge identification unit 103, and the control unit 10
4 and a liquid crystal display 105 and the like.

As shown in the exploded perspective view of FIG. 7, the power source unit 101 mainly includes a battery holder 115 provided in the main body unit 2,
Coin type lithium manganese dioxide battery 111 (hereinafter referred to as battery 111), anode metal fitting 113 and cathode metal fitting 114
And a removable battery cover 112 that fixes the battery in a watertight manner.
Etc.

The battery cover 112 is a cylindrical battery mounting portion 1
16 and an O-ring 117 on the outer periphery of the battery 16 to prevent water from entering the battery mounting portion 116 when the battery cover 112 is mounted on the battery holder 115 by the bayonet mechanism. Cylindrical battery mounting part 11
Since the notch 118 is provided in 6, the battery can be easily removed by hooking a finger. Further, a recess 119 for inserting and turning a coin is provided on the surface of the battery cover 112, and characters and an illustration indicating the battery standard and the rotation direction for opening and closing are engraved around the recess 119. Therefore, the user is responsible for battery specifications and battery cover-1.
After confirming the rotation direction of 12, the battery cover 112 can be removed from the battery holder 115 using a coin and the battery can be replaced.

The anode metal fitting 113 and the cathode metal fitting 114 provided in the battery holder 115 are connected to the controller 104 by lead wires, respectively, and the electric power from the battery 111 is supplied to the controller 104. The lead wire is fixed to the battery holder 115 via a rubber cap 120, and the rubber cap 120 allows the water to connect the lead wire to the anode fitting 113, the cathode fitting 114, and the battery mounting portion 116.
It prevents it from entering inside.

The battery may be a primary battery or a secondary battery. In addition to a lithium battery such as a lithium manganese dioxide battery which can stably supply electric power at a relatively high voltage for a long period of time, an alkaline dry battery, a manganese dry battery, Silver oxide battery,
A zinc air battery or the like may be used. Further, the shape is preferably a small battery such as a button type or a coin type which is lightweight and does not require a large installation space. In the case of a small battery, the main body does not become significantly large or the weight does not increase significantly.
It does not significantly increase the cost.

As shown in FIGS. 6 and 8 to 10, the flow rate detecting unit 102 mainly includes a water turbine 1 in which a magnet 121 is embedded.
22, a water wheel support member 123 that rotatably supports the water wheel 122, and a magnetic switch 1 that opens and closes according to the rotation of the magnet.
24 and a magnetic switch holder 125 that supports and fixes the magnetic switch 124.

The water turbine 122 comprises a cylindrical shaft portion 131 and two blades 132 and 133 formed on the shaft portion 131. A rotary shaft hole 134 into which the shaft 126 of the water turbine support member 123 is inserted is formed at one end of the shaft portion 131. A magnet mounting hole 135, in which the magnet 121 is embedded, is provided at the other end.

The magnet 121 is inserted into the magnet mounting hole 135 so that the straight line connecting the north pole and the south pole and the rotation axis of the water wheel 122 are perpendicular to each other to prevent the magnet 121 from falling off and prevent rusting due to water contact. Therefore, the opening of the magnet mounting hole 135 is covered with a plug member and adhered or welded. In order to prevent the magnet 121 from falling off and rusting, the magnet 121 is attached to the magnet mounting hole 13
It is also preferable to seal the opening of the magnet mounting hole 135 with the curable resin 136 (sealing material) after inserting the magnet mounting hole 135 into the magnet 5. As the curable resin, a polyurethane resin having higher safety is preferable, but an epoxy resin, another sealing material, or an adhesive may be used. In order to prevent the rust of the magnet 121, it is also preferable to coat the magnet itself. Also,
The magnet 121 may be a rare earth magnet having a strong magnetic force, or a ferrite magnet or the like.

As shown in FIG. 6, the water turbine 122 is axially supported from the downstream side by a water wheel support member 123 so as to be rotatable in the purified water supply passage 30. The water turbine 122 may be of an axial flow type whose rotation axis is parallel to the water supply direction of the purified water, or may be orthogonal. Further, although the number of blades of the water turbine is two, it may be one or three or more. further,
The water turbine is connected to the purification water supply passage 30 on the downstream side of the purification cartridge 3.
However, it may be provided on the upstream side. In this case, it is preferable to provide a prefilter further upstream so that dust or the like is not caught on the water wheel 122.

As shown in FIG. 10, the magnetic switch 124 is inserted into a magnetic switch holder 125 and sealed and fixed by a curable resin 137 (sealing material). The two terminals of the magnetic switch 124 are connected by lead wires to the control unit 104.
The pulse signal generated by opening and closing the magnetic switch 124 is transmitted to the control unit 104. Magnetic switch 1
As shown in FIG. 3, the magnetic switch holder 125 accommodating 24 is in contact with the outer circumference of the purified water supply passage 30 and is also included in the water turbine 1.
It is fixed near 22.

The flow rate detection unit 102 configured as described above
The water turbine 122 rotates by flowing purified water, the magnet 121 embedded in the water turbine 122 rotates, and the magnetic field changes accordingly. The magnetic switch 124 is opened and closed twice by one rotation of the magnet 121, and as a result, pulse signals for two cycles are transmitted and transmitted to the control unit 104.

Next, the control section 104 and the liquid crystal display 105 will be described with reference to FIGS.

The control section 104 mainly includes a circuit board 151 provided with a CPU, a transparent board holder 152 for accommodating the circuit board 151, and the circuit board 151 for holding the circuit board 151.
2, and a substrate frame 153 that is supported and fixed to the substrate 2.
The CPU receives power supply from the power supply unit 101, performs calculation based on the pulse signal from the flow rate detection unit 102 and the signal from the purified water cartridge identification unit 103, and the liquid crystal display 1
The output signal is sent to 05. Circuit board 15
1, a reset button 154 is provided, and the reset flow button 154 can be pressed from the outside to reset the accumulated flow rate data and the like. A switch rubber 156 for preventing water from entering the circuit board 151 is arranged above the reset button 154.
The reset button is preferably operated indirectly by 56.

The liquid crystal display 105 is directly supported and fixed to the circuit board 151 and is located in the upper front part of the main body 2 so that the user can easily see it during use.

The liquid crystal display 105 can be arranged at a position distant from the circuit board and connected by a lead wire or the like, but if it is directly supported and fixed to the circuit board 151, the signal can be surely transmitted. Further, in order to prevent the circuit board 151 from malfunctioning due to the intrusion of water from the outside, the board holder 1
52, the circuit board 151 and the liquid crystal display 1 from the opening.
It is preferable that the opening is sealed with a curable resin 155 (sealing material) and waterproofed in a state where 05 and 05 are inserted and fixed by the substrate frame 153. By waterproofing in this way, it is not necessary to individually waterproof each part,
It is possible to simplify the manufacturing process and reduce the manufacturing cost. As the curable resin 155, a two-component mixed type polyurethane resin or epoxy resin may be used.

Here, the substrate frame 153 and the curable resin 155
Alternatively, the opening of the substrate holder may be covered with a lid member via a packing. Even with this configuration, the circuit board 151 and the liquid crystal display 105 can be waterproofed like the curable resin.

In the liquid crystal display 105, as shown in FIG. 13, a frame 167 and three blocks A provided therein,
Purification cartridge exchange display element 161 composed of B and C (164, 165, 166) and ten blocks a to j
(172 to 181) and the illustration k (182), the instantaneous water flow rate display element 171 and the battery replacement display element 16
2 and a cartridge type display element 163, which are turned on, turned off, and blinked to determine the life of the cartridge, the instantaneous flow rate of purified water, the appropriateness of the instantaneous flow rate of water, the life of the battery, Display the cartridge type. The purification cartridge exchange display element 161, the instantaneous water flow rate display element 171, the battery exchange display element 162, and the cartridge type display element 163 may be individually provided, but as in the present embodiment, they are provided as one unit. It is preferable to collectively provide the liquid crystal display device because space can be saved and a user can read a large amount of information at a glance.

The liquid crystal display 105 can be turned on with a backlight, and is turned on for, for example, 5 seconds from the start of water flow when purified water is passed. The area around the faucet where the water purifier is installed is often relatively dark, and although the display is a little difficult to see on a normal liquid crystal display, it is possible to make the display clear by lighting the backlight. Note that a backlight lighting button may be provided so that the backlight is lit when the button is operated or only for a certain period of time after the button is operated. In this case, the backlight is not turned on when it is not required to be turned on, and is turned on when necessary, so that power consumption of the battery can be suppressed.

Next, the purification cartridge identifying portion 103 shown in FIG. 6 will be described with reference to the schematic longitudinal sectional view of FIG.

The purification cartridge identifying section 103 is mainly composed of
A rubber switch 143 to which the conductive member 142 is closely attached, and an identification substrate 141 having two contacts with the conductive member 142.
And an identification unit housing 144 that houses them.

The two contacts of the identification board 141 are connected to the control unit 104 by lead wires, and the opening / closing of the two contacts is transmitted to the control unit 104.

The rubber switch 143 is housed in the identification portion housing 144 so as to overlap the identification substrate 141. The rubber switch 143 is passed through the switch operation hole 145 by a protrusion provided on the bottom of the purification cartridge 3.
When is pressed, the conductive member 142 comes into contact with the two contacts of the identification substrate 141, and the circuit is closed so that a current flows. When the protrusions and the like provided on the bottom of the purification cartridge 3 separate due to the removal of the purification cartridge, the rubber switch 143 returns to the initial state due to the restoring force, and the contacts open. If the purging cartridge has no protrusions on the bottom, the contacts remain open. That is, the opening / closing signal of this contact makes it possible to discriminate between the purification cartridge having the projection on the bottom and the cartridge having no projection. The rubber switch 143 also plays a role of preventing water from entering from the switch operation hole 145 to the identification substrate 141 side.

Instead of the protrusions, a mechanism may be adopted which distinguishes between a cartridge having a recess at the bottom and a cartridge having no recess. Further, a plurality of switch operation holes, rubber switches and identification boards may be provided to enable identification of three or more types of cartridges. Furthermore, instead of the protrusion and the rubber switch, a bar code and a bar cord drill
A combination of magnets and a combination of a magnet and a magnetic switch may be used.

Subsequently, the water purifier 1 configured as described above
The action of will be described.

FIG. 2 shows a state in which raw water is discharged from the raw water shower port 14. When the faucet is opened, raw water flows in from the raw water inlet 28, and after the momentum is relaxed by the water flow relaxation member 39, the cam portion 27c pushes up the ball 11c and passes through the open water passage 21c. And is discharged from the raw water shower port 14. At this time, the letters “shower” written on the display ring 51 (see FIG. 3) can be seen from the opening 81. Since the display ring 51 has a large diameter and a large width and the characters indicating the switching state are sufficiently large, it is very easy for the user to see and the switching state is easy to understand.

Here, as shown in FIG. 5, when the lever 5 is operated and rotated until it hits the operation stopper 43, the drive shaft 41 connected to the lever 5 is moved to the ratchet mechanism shown in FIG. Rotate through 40 degrees. At the same time, the rotation is transmitted from the spur gear 45 to the spur gear 46, and the valve shaft 12 moves to 6
Rotate 0 °. Then, instead of the cam 27c of the valve shaft 12, the cam 27b faces upward, the water passage 21c is closed and the water passage 21b is opened. As a result, the raw water passes through the water passage 21b and is discharged from the raw water straightening port 15. At this time, the “stray
The letter "to" is visible.

Next, when the finger is released from the lever 5, the torsion coil spring 44 causes the lever 5 to rotate in the opposite direction, returns to the initial position, and stops. At this time, the drive shaft 41 connected to the lever 5 via the ratchet mechanism does not rotate, and neither the valve shaft 12 nor the display ring 51 rotates.

When the lever 5 is pushed down again, the valve shaft 1
Similarly, 2 rotates 60 °, the water passage 21b is closed and the water passage 21a is opened. As a result, the raw water passes through the water passage 21a and flows to the raw water supply port 26. Then, it flows into the purification cartridge 3 and is filtered by an adsorbent such as activated carbon and a hollow fiber membrane. As shown in FIG. 6, the filtered water flows into the purified water inlet 29, passes through the purified water supply passage 30, and is discharged from the purified water outlet 19. At this time, the word “purified water” written on the display ring 51 can be seen from the opening 81, and the water wheel 122 is rotated by the purified water flowing in the purified water supply passage 30,
A pulse signal is sent to the control unit 104 by the flow rate detection unit 102.

The cycle or frequency of the pulse signal corresponds to the instantaneous water flow rate of the purified water, and the cumulative count number of pulses corresponds to the cumulative water flow rate. That is,
When the cycle of the pulse signal reaches the preset first cycle set value, the block a172 shown in FIG. 13 lights up, and when it reaches the second cycle set value, the block b173 lights up in addition to the block a172. As described above, when the cycle of the pulse signal reaches the first to tenth cycle set values, the corresponding blocks a to j (172 to 181) are also turned on step by step. Even when the frequency is made to correspond to the instantaneous water flow rate instead of the cycle of the pulse signal, similarly, when the frequency of the pulse signal reaches the first to tenth frequency set values, the corresponding blocks a to
It may be configured so that j (172 to 181) is lit in stages.

Further, the optimum range of the instantaneous water flow rate is preset so that the performance of the purification cartridge can be sufficiently exhibited, and at the time of the purified water flow, it is displayed whether or not the instantaneous water flow rate is within the optimum range. To do. That is, for example, in the standard cartridge described later, the optimum range of the instantaneous water flow rate is 2 liters / min or less, but 2 liters / min corresponds to the sixth cycle set value. When the standard cartridge is mounted and the cycle of the pulse signal is not over the sixth cycle set value, the illustration k182 is turned on. In the high removal cartridge described later, the optimum range of the instantaneous water flow rate is 1.75 liters / min or less, and 1.75 liters / min corresponds to the fifth cycle set value. When the high-removal cartridge is mounted and the period of the pulse signal is not over the fifth period setting value, the illustration k182 is turned on.

By turning on the illustration k182, the user can confirm that the raw water is sufficiently purified, and can drink the purified water with peace of mind. When the illustration k182 is off, the faucet may be squeezed to suppress the instantaneous water flow rate, and the purified water may be pumped after the illustration k182 is turned on. If you remember the instantaneous water flow rate and the optimum range of the mounted cartridge, adjust the opening of the faucet while seeing blocks a to j (172 to 181) and illustration k182 to maximize the flow rate within the optimum range. It is possible, and it is possible to pump out the purified water in the shortest time.

Further, in this water purifier, the remaining life of the purification cartridge is determined by the liquid crystal display 105 depending on the cumulative amount of water passed.
Is displayed on the purification cartridge exchange display element 161 of FIG.
That is, as shown in FIG. 13, the purification cartridge exchange display element 161 has the frame 1 at the start of use of the purification cartridge.
67 and all of blocks A, B, and C (164 to 166) are lit, but when the integrated count number of pulses corresponding to the integrated amount of purified water reaches the preset first set value, block A164 Goes out, and when the second set value is reached, the block B165 goes out. Further, when the accumulated water flow rate at which the purification cartridge has to be exchanged is approached (third set value), the block C166 is turned off and the frame 167 blinks to prompt the user to exchange the purification cartridge. When the user replaces with a new purification cartridge and presses the reset button 154, the integrated count number returns to zero, and the purification cartridge replacement display element 161.
Also returns to the initial display.

Further, the liquid crystal display 105 sequentially turns off the blocks D to F (191 to 193) of the battery replacement display element 162 as the voltage of the battery decreases to prompt the user to replace the battery. ing. Therefore, the user does not need to memorize the battery start time and the battery life described in the instruction manual. Therefore, the battery cannot be replaced because the battery life is forgotten, and the accumulated flow rate data will not be lost during use of the purification cartridge, and the battery can be replaced at an appropriate time. If the user replaces the battery with a new battery, block D of the battery replacement display element 162
.About.F (191 to 193) are automatically turned on. When the power consumption is almost constant regardless of the usage status, the timing of turning off the light based on the accumulated flow rate of purified water, the accumulated value of the purified water flow time, and the accumulated value of the time when no purified water is flowing. You can decide. The battery replacement display element 162 is configured to be turned on at the beginning of use of the battery and turned off sequentially as the life of the battery approaches, but it is turned off at the beginning of use and approaches the life of the battery. You may comprise so that it may light sequentially.

Further, the liquid crystal display 105 displays the type of the cartridge mounted by turning on / off the cartridge type display element 163 based on the signal from the above-mentioned purification cartridge identifying section 103. To do. For example, when a cartridge with a protrusion on the bottom and a high removal rate of organic substances (hereinafter referred to as a high-removal cartridge) is attached, it lights up, and when a standard cartridge without protrusions on the bottom is attached. Turn off the light. Here, when the lives of the cartridges are different, the above-mentioned first to third set values relating to the purification cartridge replacement display are stored respectively for the high removal cartridge and the standard cartridge, It is automatically selected based on the signal from the purification cartridge identifying unit 103. As a result, the remaining cartridge life is displayed according to the type of cartridge, so the user does not have to memorize the type of cartridge being used, the filtration capacity, and the start time of use, and the purification time can be adjusted at an appropriate time. -Tridges can be replaced.

Here, it is also possible to display the cartridge exchange display together with a guide for each cartridge type without particularly identifying the type of the cartridge. For example, the standard cartridge may be replaced when the frame 167 blinks, and the high removal cartridge may be replaced when the block B165 is turned off, and a character or an illustration indicating the replacement may be added to the cartridge replacement display.

The liquid crystal display 105 is turned off when the purification cartridge 3 is not used. That is, the CPU of the circuit board 151 detects that the flow of purified water is stopped and the pulse signal from the flow rate detection unit 102 is stopped (the magnetic switch 124 remains open or closed for a certain period of time or more). Switching to the sleep mode, the liquid crystal display 105 is turned off. This switching greatly reduces the power consumption of the battery and allows the battery to be used for a long time.
Immediately after the battery is replaced and the reset button is operated, the sleep mode is released for a certain period of time and the liquid crystal display 105 is turned on. This is to confirm that the user has correctly installed the battery and has correctly reset the data.

The present invention can be modified as follows. (1) In the above-described embodiment, the switching display section 80 is composed of the display ring 51, the opening 81, and the transparent member 82.
It may be composed of a detector for detecting the stop angle of the drive shaft or the valve shaft and a liquid crystal display. Since the stop angle of the drive shaft and the stop angle of the valve shaft both correspond to the switching state of the switching valve, the result of detecting either one may be displayed on the liquid crystal display. When a liquid crystal display is provided, information other than the display of the switching state can be displayed. (2) In the above embodiment (1), the switching display section and the cartridge replacement time display section are provided separately, but the same liquid crystal display or the like may be used. (3) In the above embodiment, the lever operating force is transmitted to the switching valve via the ratchet mechanism, but the lever operating angle may be transmitted to the switching valve as it is without using the ratchet mechanism. In this case, the switching operation becomes a little difficult,
Since the structure is simple, the manufacturing cost can be suppressed. If the display ring and the lever are integrally rotated or made into an integral member, the structure is simplified and the manufacturing cost can be further suppressed. (4) In the above-described embodiment, a flow rate detection unit is provided in the water passage of the obtained purified water to display the appropriateness of the instantaneous flow rate of the obtained purified water. However, the raw water is fed to the purification cartridge. A flow rate detection unit is installed in the flow path that controls the instantaneous flow rate of raw water that passes through that flow path, or the instantaneous flow rate of raw water that passes through that flow path May be displayed. (5) In the above-described embodiment, the liquid crystal display 105 is provided with the purification cartridge replacement display, the instantaneous water flow rate display, the battery replacement display, and the cartridge type display, but the time display may be provided. While working in the kitchen, the user can easily check the time without having to bother looking at the wall clock or rolling up the sleeve and looking at the wristwatch. In this case, if a button switch for adjusting the time is provided, the user can adjust the time appropriately.

[0063]

EFFECTS OF THE INVENTION The water purifier of the present invention has a raw water inlet connected to a faucet for receiving raw water, and a switch for selectively selecting whether to discharge raw water as it is or to purify it with a purification cartridge and discharge it as purified water. A valve, a switching display section for displaying the switching state of the switching valve, and a lever for operating the switching valve,
The lever is rotatably supported on both sides, and since the switching display section is provided outside the lever, the switching display section can be made large, and large characters and illustrations can be used.
It can be displayed in a user-friendly manner.

When the switching display section is a liquid crystal display, information other than the switching state display can be displayed.

Further, the switching display section is provided with a rotating display member on which an illustration or a character indicating the switching state is printed.
When the switching state of the switching valve is displayed by the rotation of the rotation display member, the rotation according to the operation angle of the lever can be easily transmitted to the rotation display member, and proper display can be reliably performed. it can. When the rotation axis of the rotation display member and the rotation axis of the lever are on the same line, the operation angle of the lever can be surely transmitted to the rotation display member with a simple structure. It is possible to reduce the manufacturing cost in addition to performing reliable display.

When the replacement time display section for displaying the replacement time of the purification cartridge is provided, the user can know that the purification cartridge has reached the end of its life and needs to be replaced, and the purification cartridge can be replaced. − You can replace the tridge at the right time,
In addition, it is possible to always obtain purified water.

Further, if the faucet is directly connected to and supported by the faucet, it is smaller and less obtrusive than the stationary type in which the purification cartridge is installed near the sink.

[Brief description of drawings]

FIG. 1 is a top view of a water purifier showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the water purifier shown in FIG.

FIG. 3 is a cross-sectional view of the water purifier shown in FIG.

FIG. 4 is a cross-sectional view taken along the line C-C of a connecting portion between a lever and a drive shaft in the water purifier shown in FIG.

5 is a cross-sectional view of the water purifier shown in FIG. 3, taken along the line D-D.

FIG. 6 is a sectional view of the water purifier shown in FIG.

FIG. 7 is an exploded perspective view of a power supply unit.

FIG. 8 is an exploded perspective view of a flow rate measurement unit.

9 is a cross-sectional view of the water wheel and the water wheel support member in FIG.

10 is a cross-sectional view of the magnetic switch and the magnetic switch holder in FIG.

FIG. 11 is a vertical cross-sectional view of a purification cartridge identifying portion.

FIG. 12 is a cross-sectional view of the controller of the water purifier shown in FIG. 3, taken along the line FF.

FIG. 13 is a schematic view of a liquid crystal display.

[Explanation of symbols]

1: Water purifier 2: Body part 3: Purification cartridge 4: Faucet 5: Lever 11a: Ball 11b: Ball 11c: Ball 12: Valve shaft 13: Switching valve body 14: Raw water shower port 15: Raw water straight port 16 : Lower body 17: Upper body 18: Valve operating part 19: Purified water outlet 21a: Water passage 21b: Water passage 21c: Water passage 22: Partition plate 23: Upper chamber 24: Lower chamber 25a: O-ring 25b: O-ring 25c : O-ring 26: Raw water supply port 27a: Cam part 27b: Cam part 27c: Cam part 28: Raw water inlet 29: Purified water inlet 30: Purified water supply passage 31a: Flow passage 31b: Flow passage 31c: Flow passage 36: Packing 37: Adapter 38: Mounting Nut 39: Water Flow Relaxing Member 41: Drive Shaft 43: Operation Stopper 44: Torsion Co Le spring 45: Spur gear 46: Spur gear 47: Ratchet pawl member 48: Ratchet tooth 51: Display ring (rotating display member) 81: Opening 82: Transparent member 91: Cartridge cap 92: Opening / closing cap 93: Opening Section 101: Power Supply Section 102: Flow Rate Detection Section 103: Purification Car
Trigger identification section 104: Control section 105: Liquid crystal display 111: Battery 112: Battery cover 113: Anode fitting 114: Cathode fitting 115: Battery holder 116: Battery mounting section 117: O-ring 118: Cutout 119: Recess 120: Rubber cap 121: Magnet 122: Turbine 123: Turbine support member 124: Magnetic switch 125: Magnetic switch holder 126: Shaft 131: Shaft 132: Blade 133: Blade 134: Rotating shaft hole 135: Magnet mounting hole 136: Curable resin 137: Curable resin 141: Identification board 142: Conductive member 143: Rubber switch 144: Identification section housing 145: Switch operation hole 151: Circuit board 152: Board holder 153: Board frame 154: Reset button 155: Curable resin 156: Switch rubber 161: Cartridge exchange display element 162: Battery exchange display element 163: Carriage type display element 164: Block A 165: Block B 166: Block C 167: Frame 171: Instantaneous water flow rate display element 172: Block a 173: Block b 174: Block c 175: Block d 176: Block e 177: Block f 178: Block g 179: Block h 180: Block i 181: Block j 182: Illustration k

Claims (6)

[Claims] 1. A raw water inlet connected to a faucet for receiving raw water, a switching valve for selectively switching whether to discharge the raw water as it is or to purify it by a purification cartridge and discharge it as purified water, and switching of the switching valve. The present invention is characterized in that it has a switching display section for displaying a state and a lever for operating a switching valve, the lever is rotatably supported on both sides, and the switching display section is provided outside the lever. Water purifier. 2. The switching display section is a liquid crystal display.
Water purifier described in. 3. The switching display unit includes a rotation display member on which an illustration or characters for displaying the switching state is printed, and the rotation display member rotates to display the switching state of the switching valve. The water purifier according to Item 1. 4. The water purifier according to claim 3, wherein the rotation axis of the rotation display member and the rotation axis of the lever are on the same line. 5. The water purifier according to any one of claims 1 to 4, further comprising a replacement time display section for displaying a replacement time of the purification cartridge. 6. A direct connection type faucet which is supported and fixed to the faucet,
The faucet direct connection water purifier according to any one of claims 1 to 5.