water purifier

Abstract

This invention addresses water purifiers installed in low positions, such as under a sink, providing a water purifier that allows operators to easily and effortlessly perform tasks such as changing the water filter cartridge. The water purifier of this invention features an inclined holding structure that holds a cylindrical water filter cartridge, which is installed and removed by insertion and removal along its axial direction, in a position with a predetermined inclination angle relative to the horizontal (less than vertical) while water is flowing through it. This allows operators to easily change the water filter cartridge from a low position. Furthermore, the water purifier of this invention is characterized in that the predetermined inclination angle is a downward inclination towards the vertical direction in which the water filter cartridge is inserted and installed.

Description

Technical Field

[0001] This invention relates to a water purifier. More specifically, it relates to an under-sink water purifier for use in filtering impurities from tap water or other raw water for drinking water or the like, installed under the sink in a typical household kitchen. Background Technology

[0002] Currently, there are known household water purifiers for purifying and filtering tap water for use as drinking water. Moreover, such water purifiers, for example, used in the kitchen to purify drinking water for cooking, are installed under the sink or similar location, near the water outlet connected to the tap water pipe, and are easy to manage.

[0003] Furthermore, as prior art, a water purifier equipped with a water filter cartridge is provided that prevents backflow of raw water and filter media from easily falling off the filter cartridge and can be easily fixed to the raw water inlet (Patent Document 1).

[0004] Furthermore, as other existing technologies, there is a sink-type water purifier that makes the installation space of the water purifier under the sink compact and larger, forming an effective space under the sink, and can be installed in various types of sinks such as pull-out sinks (Patent Document 2).

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2007-275814

[0008] Patent Document 2: Japanese Patent No. 4671103 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] However, such water purifiers are usually installed in low positions, such as under the sink in the kitchen. Therefore, when replacing the water filter cartridge, the operator needs to crawl under the sink to perform the replacement work, which is generally not a convenient way to adjust the water purifier.

[0011] Furthermore, when replacing the water filter cartridge in the aforementioned ordinary water purifier, because the filter cartridge is positioned roughly parallel to the horizontal plane, it is not easy to remove the filter cartridge, which is located at a position lower than the operator. Therefore, a method that makes the operation easier is desired.

[0012] The purpose of this invention is to solve the above-mentioned problems.

[0013] Solution for solving the problem

[0014] The water purifier of the present invention has a tilting posture holding structure, which holds a cylindrical water filter cartridge that is installed and removed by inserting and removing it along its axial direction in a posture with a predetermined tilt angle relative to the horizontal less than that of the vertical while water is flowing through it.

[0015] Furthermore, the present invention is characterized in that the predetermined inclination is such that the direction of insertion and installation of the water filter cartridge has a downward inclination toward the vertically downward component.

[0016] Furthermore, the present invention is characterized in that the predetermined inclination is such that the direction of insertion and installation of the water filter cartridge has an upward inclination toward the vertically upward component.

[0017] Furthermore, the present invention is characterized in that multiple of the above-mentioned water purification filter cartridges can be inserted and installed, and the tilting posture holding structure holds at least a portion of the multiple water purification filter cartridges, i.e., multiple specific water purification filter cartridges, in a downward tilting posture or an upward tilting posture.

[0018] Furthermore, the present invention is characterized in that the above-described tilting posture holding structure holds the above-described specific water purification filter cartridge in different downward tilting postures or upward tilting postures.

[0019] Furthermore, the present invention is characterized in that the above-mentioned tilting posture holding structure holds the above-mentioned plurality of specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are overlapped in the vertical direction, and the holding is such that the tilt angle of the above-mentioned specific water purification filter cartridge disposed below is larger than the tilt angle of the above-mentioned specific water purification filter cartridge disposed above.

[0020] Furthermore, the present invention is characterized in that the above-described tilting posture holding structure holds all of the above-described specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and the holding is such that the amount of protrusion of the pull-out side end face of the above-described specific water purification filter cartridge in the pull-out direction during assembly is greater than the amount of protrusion of the pull-out side end face of the above-described specific water purification filter cartridge in the pull-out direction during assembly.

[0021] Furthermore, the present invention is characterized in that the above-described tilting posture holding structure holds all of the above-described specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and the holding is such that the amount of protrusion of the pull-out side end face of the above-described specific water purification filter cartridge in the pull-out direction during assembly is greater than the amount of protrusion of the pull-out side end face of the above-described specific water purification filter cartridge in the pull-out direction during assembly.

[0022] Furthermore, the present invention is characterized in that the above-mentioned tilting posture holding structure holds all of the above-mentioned specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are overlapped in the vertical direction, and holds them in such a way that the lower vertical position of the above-placed specific water purification filter cartridge during assembly is at a position higher than the upper vertical position of the above-placed specific water purification filter cartridge during assembly.

[0023] Furthermore, the present invention is characterized in that the above-mentioned tilting posture holding structure holds the above-mentioned plurality of specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and holds the heaviest specific water purification filter cartridge in the lowest position.

[0024] Furthermore, the present invention is characterized in that the above-mentioned tilting posture holding structure holds the above-mentioned multiple specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and holds the specific water purification filter cartridge with the highest replacement frequency in the uppermost position.

[0025] Furthermore, the present invention is characterized in that the inlet of the drainage path faces the lower position of the connection side end face of the above-mentioned water purification filter cartridge.

[0026] Furthermore, the present invention is characterized in that the housing of the water purifier is provided with a downward-opening cover, which is movable between a closed state covering the insertion and removal surface of the water filter cartridge and an open state in which the insertion and removal surface of the water filter cartridge is not covered and the water filter cartridge can be inserted and removed. Moreover, the cover in the open state is configured to be positioned below the pull-out trajectory of the water filter cartridge, so as to function as a water receiving tray.

[0027] Furthermore, the present invention is characterized in that the above-mentioned tilting posture holding structure holds the above-mentioned multiple specific water purification filter cartridges in a state of overlapping in the vertical direction in an alternating downward tilting posture and an upward tilting posture. Below each specific water purification filter cartridge, there is a flow-down collection path along the tilting posture of the specific water purification filter cartridge. A connecting path is provided at the lower end of each flow-down collection path to allow water to flow down to a lower flow-down collection path. The connecting path of the lowest flow-down collection path is configured to allow water to flow down to a water receiving tray or a drainage path.

[0028] Furthermore, the present invention is characterized in that the tilting posture holding structure described above has a displacement mechanism that enables the posture of the water filter cartridge to shift between a downward tilting posture and a horizontal posture.

[0029] Furthermore, the present invention is characterized in that the tilting posture holding structure comprises: a displacement mechanism that enables the posture of the specific water filter cartridge to be displaced between a downward tilting posture and a horizontal posture; and a posture synchronization mechanism that, when the posture of one specific water filter cartridge is displaced, the postures of other specific water filter cartridges are also displaced to the same posture.

[0030] The effects of the invention are as follows.

[0031] When using the water purifier of the present invention, since the water filter cartridge is connected to the water purifier in a predetermined inclined position relative to the horizontal direction (less than vertical), the water filter cartridge can be easily removed from the upper side of the water purifier. Therefore, it is convenient to perform water filter cartridge replacement operations for water purifiers installed under sinks, etc. Attached Figure Description

[0032] Figure 1 This is a schematic diagram showing an overall outline of a water purification device according to one embodiment of the present invention in a collective dwelling.

[0033] Figure 2 This is a schematic diagram showing the arrangement of a water purifier according to one embodiment of the present invention in a family unit within a collective housing estate.

[0034] Figure 3 This is a schematic diagram of a water purifier according to one embodiment of the present invention installed under a sink.

[0035] Figure 4 This is a perspective view of a water purifier according to one embodiment of the present invention.

[0036] Figure 5A This is a side view showing the interior of the water purifier according to the first embodiment of the present invention.

[0037] Figure 5B This is a cross-sectional view showing the internal structure of the water filter cartridge of the water purifier according to the first embodiment of the present invention.

[0038] Figure 6 This is a side view showing the internal structure of a water purifier according to a second embodiment of the present invention.

[0039] Figure 7 This is a side view showing the internal structure of a water purifier according to a third embodiment of the present invention.

[0040] Figure 8 This is a side view showing the internal structure of a water purifier according to a fourth embodiment of the present invention.

[0041] Figure 9 This is a side view showing the internal structure of a water purifier according to a fifth embodiment of the present invention.

[0042] Figure 10A This is a side view showing the internal structure of a water purifier according to the sixth embodiment of the present invention, with the front of the water filter cartridge facing downwards.

[0043] Figure 10B This is a side view showing the internal structure of a water purifier according to the sixth embodiment of the present invention, with the rear of the water filter cartridge facing downwards.

[0044] Figure 11A This is a side view showing the internal structure of a water purifier according to the ninth embodiment of the present invention.

[0045] Figure 11B This is a side view showing the drainage path of a water purifier according to the ninth embodiment of the present invention.

[0046] Figure 11C It is shown Figure 11B A cross-sectional view of the structure of the drainage path of the water purifier of the ninth embodiment of the present invention near the water filter cartridge, as shown by the dotted line.

[0047] Figure 12A This is a side view showing the internal structure of the water purifier in its open state according to the tenth embodiment of the present invention.

[0048] Figure 12B This is a side view showing the internal structure of the water purifier of the tenth embodiment of the present invention in its closed state when the cover is closed.

[0049] Figure 13 This is a side view showing the internal structure of a water purifier according to the eleventh embodiment of the present invention.

[0050] Figure 14 This is a side view showing the internal structure of a water purifier according to another embodiment of the eleventh principle of the present invention.

[0051] Figure 15A This diagram illustrates the arrangement of the water filter cartridge portion when the water filter cartridge of the water purifier according to the twelfth embodiment of the present invention is tilted in the rearward and downward direction.

[0052] Figure 15B This diagram illustrates the arrangement of the water filter cartridge section when the water filter cartridge of the water purifier according to the twelfth embodiment of the present invention is removed with the water filter cartridge approximately parallel to the horizontal plane.

[0053] Figure 16A This is a side view showing the arrangement of the water filter cartridge of the water purifier according to the thirteenth embodiment of the present invention with the rear part being the upper part and tilted.

[0054] Figure 16BThis is a side view showing another arrangement of the water filter cartridge of the water purifier according to the thirteenth embodiment of the present invention, with the rear portion being the upper part and tilted.

[0055] Figure 17 This is a side view showing an arrangement in which the protrusion of the water filter cartridge of the water purifier according to the fourteenth embodiment of the present invention is greater towards the top.

[0056] Figure 18 This is a side view showing an arrangement in which the upper end of the lower water filter cartridge of the water purifier according to the fifteenth embodiment of the present invention is higher than the lower end of the upper water filter cartridge.

[0057] Figure 19A This is a diagram showing the electrical system and water system of a water purifier in standby mode according to one embodiment of the present invention.

[0058] Figure 19B This is a diagram illustrating the electrical system and water system of a water purifier according to an embodiment of the present invention during water flow.

[0059] Symbol Explanation

[0060] 1—Collective housing, 2—Living space section, 3—Supply section, 6—Filter, 7—Raw water, 8—First filtered water, 9—Piping, 10—Pipe space, 11—First water purification section, 12—Pre-filter, 13—Water purifier, 14—Second filtered water, 15—First piping line, 16—Second piping line, 17—Water softener, 18—Third softened water, 19—Second water purification section, 20—Water purifier, 22—Space under the sink, 31—Water purifier with filter cartridge, 32—Filter cartridge, 33—First filter cartridge, 34—Second filter cartridge, 35—Third filter cartridge, 36—Inlet, 37—Assembly port, 3 8—pipe, 39—outlet, 40—water purifier, 41—drainage path, 42—inlet, 43—base, 44—outlet, 45—front end, 46—end face, 47—cover, 48—plug-in surface, 49—rotating shaft, 50—connecting side end face, 53—downstream water collection path, 54—downstream end, 55—connecting path, 56—outlet, 57—filter media, 58—water path, 59—assembly port, 70—rotating shaft, 80—control unit, 81—power adapter, 82—display unit, 83—WiFi unit, 86—flow measurement unit, 90—faucet unit, 91—RFID unit, A—water purification device. Detailed Implementation

[0061] The present invention is a water purifier with an inclined posture holding structure, which holds a cylindrical water filter cartridge that is installed and removed by inserting and removing it along its axial direction in a posture with a predetermined inclination relative to the horizontal less than that of the vertical while water is flowing through it.

[0062] [1. Configuration of a water purifier according to one embodiment of the present invention]

[0063] First, use Figures 1-3 The installation method of a water purifier according to one embodiment of the present invention in a collective residential building will be described.

[0064] like Figure 1 As shown, a water purification device and water purifier according to one embodiment of the present invention are envisioned for use in a multi-family residential building 1. Furthermore, as part of the overall structure of the water purifier A, the living space 2 for each family is located above ground, while the water supply unit 3 for supplying water to each family is located underground.

[0065] Moreover, such as Figure 1 As shown, when water is introduced into the building from the external water pipe 4, the water is introduced into the building through the piping 9, and is supplied from the outside through the filter 6 and water pump 5 of the supply unit 3 located in the underground part. At this time, the filter 6 first filters the raw water 7 to generate first filtered water 8 with reduced impurities in the water.

[0066] Then, the first filtered water 8, which is obtained through the tap water pipe 4 and purified by the filter, is transported to each residential area through the piping 9, etc.

[0067] Next, use Figure 2 The water supply method for each household's residential area should be explained. For example... Figure 2 As shown, by Figure 1 The water supply pump 5 delivers the first filtered water 8 to each residential area along the piping 9. In each residential area, the first filtered water is first connected to the first water purification unit 11 located in the pipe space 10.

[0068] Then, the first filtered water 8 delivered to each household area is further purified by the first water purification unit 11 located in its relay section. Here, the first water purification unit 11 is equipped with a pre-filter 12 and a water purifier 13, which filter the water again.

[0069] Here, the pre-filter 12 uses a filter with a pore size larger than 50 nm. Furthermore, as part of its function, the pre-filter 12 has the function of adsorbing residual chlorine and other substances in the water and removing larger molecules before sending it to the next filter.

[0070] Furthermore, the second filtered water 14 generated by the water purifier 13 is branched and delivered to the first piping 15 and the second piping 16. The first piping 15 carries water used in toilets, washing, and bathing, while the second piping 16 carries water used in sinks, drinking water, etc.

[0071] In the first piping line 15, the second filtered water 14 is softened by passing through the water softener 17 to become third soft water 18. This third soft water 18 is used as water for use in toilets, washbasins, bathing, etc., as described above.

[0072] On the other hand, the second filtered water 14 after passing through the second piping 16 is purified by the second water purification unit 19 installed below the sink, etc., and then used as water that is directly introduced into the mouth of the resident for the sink, water tank, water dispenser, etc.

[0073] Next, use Figure 3 The arrangement of a water purifier according to one embodiment of the present invention below the sink will be described. For example... Figure 3 As shown, in one embodiment of the present invention, a water purifier 20 is longitudinally arranged in the space 22 below the sink 21. Furthermore, the second filtered water 14 is further filtered by this water purifier to become purified water, which is used for washing dishes, etc. Figure 2 The second water purification section 19 and Figure 3 The water purifier 20 corresponds to this.

[0074] Here, regarding the installation of the water purifier according to one embodiment of the present invention, it is envisioned that it be installed in a low position, such as below the sink. Therefore, it is not limited to below the sink; any water purifier installed in a low position, such as in the lower part of the space next to the sink, is acceptable, and the installation position can be varied.

[0075] As explained below, another embodiment is that it is installed on the upper part of the sink, such as an upper shelf.

[0076] Furthermore, the configuration of the piping under the sink is not limited to... Figure 3 The diagram shown can represent various installation methods. As long as it is properly stored and installed under the sink, there are no restrictions on the type.

[0077] Thus, the water purifier 20 of one embodiment of the present invention is disposed below the sink 21. Therefore, the purified water ultimately produced by the water purifier 20 can be used quickly without going through long pipes. This ensures the safety of the purified water in terms of hygiene, which would otherwise be caused by running water through long pipes.

[0078] And, as Figure 3 As shown, the piping for delivering purified water is relatively short, so even when water use is stopped, less purified water remains in the piping. This also ensures the safety and hygiene of the purified water.

[0079] And, as Figure 3As shown, since the water purifier of one embodiment of the present invention is installed below the sink 21, when adjusting the water purifier such as replacing the water filter cartridge, the operator crawls under the sink 21 to perform the replacement work.

[0080] [2. A water purifier according to one embodiment of the present invention]

[0081] First, use Figure 4 Figure 5 illustrates a water purifier according to one embodiment of the present invention. First, Figure 4 This is a perspective view of a water purifier according to one embodiment of the present invention. Furthermore, Figure 5A This is a side view of the internal structure of a water purifier according to one embodiment of the present invention. Figure 5B This is a cross-sectional view of a water purification filter cartridge according to one embodiment of the present invention.

[0082] first, Figure 4 The water purifier shown in Figure 5, representing one embodiment of the present invention, is an example of a conventional water filter cartridge orientation. This invention is based on this... Figure 5A One embodiment of the water purifier method involves altering the orientation of the water filter cartridge.

[0083] Furthermore, the Figure 5A In Figure 5A On the right side, three water purifier filter cartridges are arranged vertically in a vertical direction. Furthermore, each filter cartridge has a connection port and piping on its left side (behind the water purifier 31 with filter cartridges). Additionally, at the upper rear of the water purifier 31 with filter cartridges... Figure 5A The upper left part is equipped with an inlet 36 for the water to flow from the outside into the water purifier 31 with the water filter cartridge, and the lower rear part of the water purifier 31 with the water filter cartridge is located at the bottom. Figure 5A The lower left part is equipped with an outlet 39 for discharging filtered water to the outside.

[0084] The positions of the inlet 36 and outlet 39 are the same in the other embodiments described below. Wherein, as long as they have the same function, the positions of the inlet 36 and outlet 39 can be reversed or at different heights, etc.

[0085] Furthermore, the inlet 36 and outlet 39 are located at the rear of the water purifier 31 with the water filter cartridge, but they can also be located on the side, etc.

[0086] Furthermore, a base portion 43 supporting each water purification filter cartridge 32 is provided at the lower part of each water purification filter cartridge 32. Although not shown in the figure, a pump portion or the like that that promotes the circulation of filtered water is provided in the base portion 43.

[0087] like Figure 5Aand Figure 5B As shown, in a water purifier 31 with a water purification filter cartridge according to one embodiment of the present invention, as one way of water purification filter cartridge 32, the three water purification filter cartridges 32 with built-in filter material 57 such as filters are arranged to be approximately parallel to the horizontal plane.

[0088] In this specification, the three water purification filter cartridges 32 are referred to as the first water purification filter cartridge 33, the second water purification filter cartridge 34, and the third water purification filter cartridge 35, from top to bottom.

[0089] Furthermore, water flowing in from the inlet 36 located near the upper rear part of the water purifier 31 with filter cartridges passes through each filter cartridge 32 and is filtered by the filter media 57 and the like built into each filter cartridge 32. Through this process, ions, colloids, bacteria, viruses, etc., in the water can be removed, making it safe for use as drinking water.

[0090] As one type of filter material 57 for the aforementioned water purification filter cartridge 32, the first water purification filter cartridge 33 is made of molded activated carbon. Furthermore, the second water purification filter cartridge 34 is a device for adding mineral components, etc., to the filtered water.

[0091] Activated carbon is produced by processing carbonaceous materials such as coconut shells and coal at high temperatures. Its surface has multiple micropores, including macropores, mesopores, and micropores. Therefore, when water passes through activated carbon, specific substances in the water are adsorbed onto the activated carbon, thus removing those substances from the water.

[0092] Furthermore, the specific filter material 57 used for filtration, such as molded activated carbon or granular activated carbon, can retain mineral components (such as Na ions) in the water, and can remove chlorine, surfactants, pesticides, dioxins, and one type of organofluorine compound (PFAS) through filtration.

[0093] Furthermore, the hollow fiber membrane, which is another filter material 57, is a membrane formed by a collection of tube-shaped yarns with internal cavities. Water passes through such a membrane, thereby removing foreign matter such as bacteria and mold from the water.

[0094] Furthermore, a reverse osmosis membrane can also be used as the filter media 57 of the third water purification filter cartridge 35. This reverse osmosis membrane extracts only water molecules from water through reverse osmosis. Therefore, it can remove tiny particles such as ions, metals, and viruses from the water, and can remove almost all substances except water. Therefore, if this reverse osmosis membrane is used, drinking water can also be produced from seawater. Therefore, if the water purifier of this embodiment is used, for example, in the case of producing drinking water from seawater, it is preferable to use a reverse osmosis membrane for the water purification filter cartridge 32.

[0095] Here, the number of water filter cartridges 32 and the type of filter media 57 contained therein are merely one approach, and are not limited to this approach. Depending on the degree of filtration and the type of water being filtered, various combinations of filter media 57 may also be used.

[0096] And, as Figure 5A As shown, each water filter cartridge 32 is equipped with two assembly ports 37 that connect to the water purifier 40. Here, one assembly port 37 has the function of allowing water to flow into the water filter cartridge 32, and the other assembly port 37 has the function of allowing purified water to flow out of the water filter cartridge 32.

[0097] exist Figure 5A In one embodiment, water flows in from the upper assembly port 37 of each water filter cartridge 32 and flows out from the lower assembly port 37.

[0098] Figure 5B This illustrates one configuration of the water path within the water filter cartridge 32. For example... Figure 5B As shown, water flowing into the water purification filter cartridge 32 from the upper assembly port 37 first moves towards the center of the water purification filter cartridge 32 via the water passage 58 located near the outer periphery of the cartridge (arrows indicate the direction of water movement). Furthermore, the water passes through the filter media 57 located in the center of the cartridge 32 to remove bacteria and other foreign matter, generating filtered water.

[0099] Afterwards, the generated filtered water is discharged to the outside through the assembly port 37 at the bottom of the water filter cartridge 32.

[0100] also, Figure 5B The internal structure of the water filter cartridge 32 shown is just one example; various corresponding filtration structures are possible within the water filter cartridge 32. Any water filter cartridge with the aforementioned filtration function is acceptable, and its structure can be arbitrary. Furthermore, the water flow path is also just one example; any method that allows water to flow through the filter media and achieves sufficient filtration is acceptable and can be varied.

[0101] Furthermore, as one embodiment of the shape of each water purification filter cartridge 32, such as Figure 5A The surface shown is cylindrical or prismatic. However, it is not limited to this shape and can be of various shapes.

[0102] Furthermore, the number of water purification filter cartridges 32 is not limited to... Figure 5A The three shown are examples. The number of water filter cartridges 32 is not limited, as long as the invention can be implemented.

[0103] Furthermore, this method is just one example; the location, number, and pipe configuration of the assembly ports 37 for water flowing into or out of the water filter cartridge can also vary.

[0104] Furthermore, each of the aforementioned water purification filter cartridges 32 is installed and removed by inserting and removing it along its axial direction. That is, as long as... Figure 5A The water purifier 31 with a water filter cartridge shown in the diagram allows the water filter cartridge 32 to be positioned from the back to the front of the water purifier 31, i.e., from... Figure 5A The insertion and removal are performed by moving the device horizontally from left to right.

[0105] Furthermore, in the water purifier of one embodiment of the present invention described below, various inventions are made regarding the direction of the water filter cartridge 32 and the direction of the mounting port 37 for differentiating the direction of the water filter cartridge 32. Therefore, the arrangement of the pipe connected to the water filter cartridge is not different between the following embodiments and is substantially the same as the arrangement of the first embodiment.

[0106] [3. Regarding the second implementation method]

[0107] Next, use Figure 6 The second embodiment will be described. For example... Figure 6 As shown, in the second embodiment, each water filter cartridge 32 is tilted obliquely upwards as it faces forward (in other words, it has an inclined posture holding structure that holds the water filter cartridge 32 in an upwardly tilted posture with a vertically upward component in the assembly direction of the holding water filter cartridge 32). At this time, the mounting port 37, which is the connection part connected to the water purifier 40, is also inclined and arranged in accordance with each water filter cartridge 32. Apart from this, the water passage path formed by the water pipe 38, etc., is the same as in the first embodiment.

[0108] Moreover, such as Figure 6 As shown, in this second embodiment, the inclination angles of all the water filter cartridges 32 constituting the water purifier 31 with water filter cartridges are approximately the same. Considering the water purifier 31 with water filter cartridges is installed under a sink, the inclination angle of each water filter cartridge 32 is preferably set at an appropriate angle. As an example of the inclination angle of this water filter cartridge 32, it is approximately 10° relative to the horizontal direction.

[0109] Furthermore, the tilt angle can be arranged in various ways, such as tilting all water filter cartridges 32 to 5°, 10°, or 15°. Moreover, the water filter cartridges can be arranged at an appropriate angle according to the placement of the water purifier 31 with the water filter cartridges.

[0110] Furthermore, the tilt is configured such that the lower part is behind the mounting port 37 side of the water purifier 40 where the water filter cartridge 32 is assembled, and the upper part is in front of the pull-out end face 45 side of the water filter cartridge 32.

[0111] In this second embodiment, the water filter cartridges 32 can be inserted and removed by simply pointing them upwards and in front of the operator, thus reducing the burden on the operator. Furthermore, since the water filter cartridges 32 are inserted and removed at an angle upwards, even if water leaks from the cartridges near the assembly port 37, the leaked water will remain near the assembly port 37, reducing concerns about leakage from the water purifier 31 with the filter cartridges to the outside. Therefore, it is easier for the operator to install and remove the water filter cartridges 32. Moreover, any leaks can be easily handled by wiping or cleaning when replacing the filter cartridges.

[0112] Furthermore, in this manner, the pull-out end face 45 of the water filter cartridge 32 is tilted upwards. Therefore, by attaching labels indicating the type of each water filter cartridge to the end face 46 of the pull-out end face 45 beforehand, operators can easily identify the type of water filter cartridge 32.

[0113] Furthermore, in this manner, even when the water purifier 31 with the water filter cartridge is installed under the sink, the water filter cartridge 32 can be inserted and removed more easily.

[0114] Furthermore, in this embodiment, as Figure 6 As shown, the assembly port 37 itself is tilted, and each water filter cartridge 32 connected to the assembly port 37 is also tilted. In another embodiment, it can also be set up as follows: the assembly port 37 itself is approximately parallel to the horizontal plane, and a platform is provided to tilt the water filter cartridge 32 itself and its assembly port 37 itself, so that only all water filter cartridges 32 are tilted.

[0115] and, Figure 5A The diagram shows a water filter cartridge 32 arranged longitudinally in the vertical direction as one embodiment. As another embodiment, it is also possible to arrange multiple water filter cartridges 32 side by side with each other floating horizontally at the same height, or to arrange the water filter cartridges 32 in various directions such as alternating left and right, or alternating up and down.

[0116] In this manner, compared to the arrangement in a vertical row, the height and width of the space used to house all water filter cartridges can be adjusted freely or suppressed, allowing for flexible handling of the space available for the placement of the water filter cartridges 32.

[0117] Furthermore, as another embodiment, the water filter cartridge 32, which is roughly parallel to the horizontal direction, and the inclined water filter cartridge 32 can be mixed together. In this case, for example, by setting only the lowermost water filter cartridge 32 to an inclined state while setting the other water filter cartridges 32 to a state roughly parallel to the horizontal plane, it is possible to easily remove the lowermost water filter cartridge, which is the most difficult to insert and remove.

[0118] Furthermore, the tilt in this embodiment is not limited to tilting only in the vertical direction. That is, it can also be tilting in the upward or downward direction.

[0119] [4. Regarding the third implementation method]

[0120] Next, use Figure 7 The third embodiment will be described. For example... Figure 7 As shown, in the third embodiment, each water filter cartridge 32 is tilted downwards at its front relative to the horizontal direction (in other words, the assembly direction of the water filter cartridge 32 is downwardly tilted with a component pointing vertically downwards). Furthermore, the tilt angle of each of the three water filter cartridges 32 is approximately the same. As one embodiment, this tilt angle is the same as in the second embodiment, approximately 10°.

[0121] If the water filter cartridge 32 is tilted as a whole, it will tilt towards the rear, i.e., in front of the operator, making it easy to monitor the status of the water filter cartridge 32 from above. Therefore, by attaching a label or similar material to the top of the water filter cartridge, the type of water filter cartridge can be easily identified.

[0122] Furthermore, in this way, the status of the water filter cartridge 32 can be monitored from above, and the insertion and removal status at the assembly port 37 can be visually identified more easily.

[0123] Furthermore, for water filter cartridges that are arranged overlapping in the vertical direction and are not easily identifiable from the top, the following method can be used: labels or the like are affixed to the upper part of the water filter cartridge 32 near the pull-out side end 45 of each water filter cartridge in advance, and the water filter cartridge is pulled out slightly towards the front to identify the type of water filter cartridge.

[0124] Furthermore, when the water filter cartridge 32 is replaced or removed, the leaked water from the assembly port 37 automatically flows downwards, making it easy to drain to the outside of the water purifier. Therefore, there is less concern about leaked water remaining inside the water purifier 31 with the filter cartridge and near the assembly port 37, making it an excellent method in terms of hygiene.

[0125] Furthermore, the tilting method of each water purification filter cartridge 32 in this embodiment can also be one of the various methods described in the second embodiment.

[0126] [5. Regarding the fourth implementation method]

[0127] Next, use Figure 8 The fourth embodiment will be described. For example... Figure 8 As shown, in the fourth embodiment, the water filter cartridges 32 of the water purifier 31 with water filter cartridges overlap in the vertical direction and are respectively arranged at an angle.

[0128] Furthermore, in the fourth embodiment, the tilt angles of each water filter cartridge 32 are different. As one possible tilt angle, the first water filter cartridge 33 has a tilt angle of 3°, the second water filter cartridge 34 has a tilt angle of 5°, and the third water filter cartridge 35 has a tilt angle of 7°. Each water filter cartridge tilts upwards relative to the horizontal direction as its pull-out end face 45 is extended.

[0129] Here, the tilt angle of each water filter cartridge 32 increases as it moves downwards. In this way, even when the space for installing the water filter cartridges in the water purifier 31 with the water filter cartridges is limited, the placement of the water filter cartridges can be adequately ensured.

[0130] Furthermore, since the installation angle varies depending on the individual water filter cartridge 32, the type of water filter cartridge 32 can be identified by visual inspection from the side of the water purifier 31 equipped with the water filter cartridge. Therefore, the usage method is excellent.

[0131] Furthermore, in this manner, the tilt angle of the lower water filter cartridge 32 is larger, with the bottommost cartridge having the largest angle. Therefore, operators can insert and remove the filter cartridge at a steep tilt angle, as seen in the lower water filter cartridge 32, making it an easy method for operators to insert and remove the filter cartridge.

[0132] Furthermore, the tilt angle of the water filter cartridge 32 in this embodiment is just one possible method. Besides an excessive tilt, there can be various tilt angles.

[0133] [6. Regarding the fifth implementation method]

[0134] Next, use Figure 9 The fifth embodiment will be described. For example... Figure 9 As shown, in the fifth embodiment, the water filter cartridge is tilted so that the rear assembly port 37 is the upper part and the front pull-out side end face 45 is the lower part.

[0135] Furthermore, the tilt angle of the water filter cartridge 32 varies depending on the individual water filter cartridge 32, with the tilt angle being larger for the lower water filter cartridge 32. That is, as one way to tilt the water filter cartridge 32, the first water filter cartridge 33 has a tilt angle of 3°, the second water filter cartridge 34 has a tilt angle of 5°, and the third water filter cartridge 35 has a tilt angle of 7°.

[0136] The tilt angle of each water filter cartridge 32 is just one implementation method. Other tilt angles are also possible as long as they are not excessive.

[0137] Furthermore, regarding the tilt angle of each water filter cartridge 32, as mentioned above, the tilt angle is larger for the lower water filter cartridge 32. In this manner, the tilt angle increases with each lower water filter cartridge 32, thus providing ample space between them when inserting or removing the cartridges. Therefore, operators can easily insert or remove the water filter cartridges 32, resulting in a highly convenient operation.

[0138] [7. Regarding the sixth implementation method]

[0139] Next, use Figure 10A and Figure 10B The sixth embodiment will be described. For example... Figure 10A and Figure 10B As shown, in the sixth embodiment, a plurality of water purification filter cartridges 32 are provided, each water purification filter cartridge 32 being inclined at approximately the same angle. Furthermore, the inclination direction can be downwards along the pull-out end face 45 of the water purification filter cartridge 32. Figure 10A It can also tilt upwards as the water filter cartridge 32 is pulled out from the side end 45. Figure 10B ).

[0140] Furthermore, in this sixth embodiment, there is a characteristic regarding the protrusion length of the pull-out end face 45 of the water filter cartridge 32. That is, the protrusion amount of the water filter cartridge 32 in the insertion and removal direction is characterized in that the lower the water filter cartridge is, the larger the protrusion amount becomes, and the further forward it protrudes.

[0141] Because the sixth embodiment is implemented in this way, the operator who replaces the water filter cartridge 32 can easily identify the type of water filter cartridge 32 from the end face 46 of each water filter cartridge 32.

[0142] Here, as described above, the method of making the protruding lengths of each water filter cartridge different is a characteristic that allows operators to identify their type from their ends. Therefore, as long as it is possible to distinguish each water filter cartridge 32 in this way, the protruding length can be the width. Among them, by making the difference in the protruding lengths of the multiple water filter cartridges 32 approximately the same, the aesthetics from the side view are excellent, so this method is preferred.

[0143] [8. Regarding the seventh implementation method]

[0144] Next, the seventh embodiment will be described. In the seventh embodiment, a plurality of water filter cartridges 32 are arranged overlappingly in the vertical direction. Moreover, the heaviest water filter cartridge 32 is disposed at the bottom of the water filter cartridge section.

[0145] Here, the water filter cartridges 32 other than the bottommost one are preferably arranged in such a way that the heavier water filter cartridges 32 are arranged as they are located lower. However, the water filter cartridges 32 other than the bottommost one may not be arranged in this way, and of course, a mixture of relatively heavy water filter cartridges 32 and relatively light water filter cartridges 32 may also exist.

[0146] In this configuration, the heaviest water filter cartridge 32 is located at the bottom of the water filter cartridge section, thus achieving balance and stability in the water purifier 31 with the water filter cartridge. Therefore, this configuration offers excellent safety.

[0147] Furthermore, since the heaviest water filter cartridge 32 is located at the bottom, operators do not need to hold the heavier cartridge in a constrained position when replacing it. Therefore, it offers convenience for tasks such as replacing the water filter cartridge.

[0148] [9. Regarding the eighth implementation method]

[0149] Next, the eighth embodiment will be described. In the eighth embodiment, the water filter cartridge 32, which has the highest replacement frequency (short lifespan of the filter media), is arranged at the top of the water filter cartridge section of the water purifier 31 with the water filter cartridge.

[0150] Here, it is preferable that the water filter cartridge 32, which has a relatively short filter media lifespan, is positioned at the top.

[0151] In this way, since the water filter cartridge 32, which is replaced more frequently, is located at the top of the water purifier 31 with the water filter cartridge, the water filter cartridge 32, which is replaced more frequently, is easier to remove.

[0152] As one specific type of such water filter cartridge, the lower-mounted water filter cartridge 32, which requires less frequent replacement, can filter approximately 30,000 liters of water and has a lifespan of about 2.3 years. On the other hand, the water filter cartridge 32, which requires more frequent replacement, can filter approximately 8,000 liters of water and has a lifespan of about 1 year.

[0153] Furthermore, the arrangement of each water filter cartridge 32 in the vertical direction in this eighth embodiment can also be one of the above-mentioned arrangements. That is, each water filter cartridge 32 can be arranged in parallel or at an angle. Moreover, each water filter cartridge 32 can be tilted at different angles.

[0154] [10. Regarding the ninth implementation method]

[0155] Next, the ninth embodiment will be described using Figure 11. Figure 11AAs shown, in the ninth embodiment, the inlet 42 of the drainage path 41 is provided near the assembly port 37 between the water purifier 40 and the water filter cartridge 32, that is, below the connection side end face 50 of the water filter cartridge 32. This drainage path 41 is, for example, a connecting component such as a pipe, and is provided on the lower side of each water filter cartridge 32.

[0156] Figure 11B and Figure 11C This illustrates one possible flow path for the piping. Like this... Figure 11B and Figure 11C As shown, the drainage channel 41 is arranged in the lower part of each water purification filter cartridge 32 in the form of a flow channel.

[0157] And, as Figure 11C As shown, the drain path 41 is wide enough to cover the upper part of the water filter cartridge 32 and includes approximately the entire lower part of the water filter cartridge 32. Because of this, the drain path 41 can accept leakage water from the beginning of insertion / removal of the water filter cartridge 32 until the end of insertion / removal.

[0158] Furthermore, in this manner, when replacing each water filter cartridge 32, the water overflowing from each water filter cartridge 32 is discharged to the outside of the water purifier 31 with the water filter cartridges along the drain path 41, thus preventing water from stagnating inside the water purifier 31 with the water filter cartridges. Therefore, it is excellent in terms of hygiene.

[0159] Moreover, such as Figure 11B and Figure 11C As shown, the drainage path 41 is provided at the lower part of each water purification filter cartridge 32. Moreover, as shown in FIG11, after the drainage path 41 from each water purification filter cartridge 32 merges along the guide section such as the pipe, water is released from the water purifier 31 with water purification filter cartridges to the outside.

[0160] As one approach, the drainage path 41 can be configured such that a vertically downward connecting pipe 38 extends from the confluence of the individual water filter cartridges 32, discharging leaked water directly below the water purifier 31 with the filter cartridges. Alternatively, as... Figure 11A As shown, it can also be done in the following way: a pipe 38 is installed further from the lower part of the water purifier 31 with the water filter cartridge towards the front side of the water purifier, and the leaked water is discharged from the outlet 44 on the front side of the water purifier (the side where the water filter cartridge is removed).

[0161] [11. Regarding the tenth implementation method]

[0162] Next, the tenth embodiment will be described using Figure 12. Figure 12AAs shown, in the tenth embodiment, a cover 47 is provided on the insertion / removal surface 48 of the water filter cartridge 32 of the housing 60 of the water purifier 31 with the water filter cartridge. This cover 47 has a state displacement capability between an open state and a closed state. In the open state, the insertion / removal surface 48 of the water filter cartridge 32 of the water purifier 31 is open, allowing the water filter cartridge 32 to be inserted and removed. In the closed state, the insertion / removal surface 48 of the water filter cartridge 32 is closed, preventing the insertion / removal of the water filter cartridge 32. This state displacement is achieved through a bottom-opening structure.

[0163] Here, as Figure 12B As shown, the rotation axis 49 of the bottom-opening structure is located near the bottom of the cover 47 when it is closed. Therefore, it becomes a bottom-opening structure when the cover 47 is opened and closed.

[0164] Furthermore, with the cover open, it is positioned below the pull-out path of the water filter cartridge 32. That is, in one manner, as... Figure 12A As shown, the cover 47 is tilted approximately 90° forward from the insertion surface 48, thus becoming an open state.

[0165] Because of this design, the cover 47 protects the water filter cartridge when closed, and functions as a drip tray to collect water leaking out when the filter cartridge is replaced when open.

[0166] Such a cover 47 can be made of, for example, synthetic resin. Furthermore, it can be configured such that a groove-shaped structure is provided on the inner side of the cover 47 facing the water filter cartridge 32 to guide water near areas where leakage is anticipated. Moreover, such a cover 47 has the function of pressing the water filter cartridge 32 into the mounting port 37 from its inner side and securing it. The function of securing the water filter cartridge 32 using such a cover 47 is designed to prevent the water filter cartridge from being pulled out when water pressure is generated within the water filter cartridge 32.

[0167] [12. Regarding the eleventh implementation method]

[0168] Next, use Figure 13 and Figure 14 The eleventh implementation method will be described. For example... Figure 13 and Figure 14 As shown, in the eleventh embodiment, the first water purification filter cartridge 33, the second water purification filter cartridge 34, and the third water purification filter cartridge 35 are respectively arranged with alternating upward and downward tilts in opposite directions. Figure 13 and Figure 14 As shown, the tilting direction of each water purification filter cartridge 32 can be adjusted by each water purification filter cartridge tilting alternately, and the tilt of the lowest water purification filter cartridge 32 can be either upward or downward.

[0169] Furthermore, below each water filter cartridge 32, a water passage (hereinafter referred to as a downflow collection passage 53) is provided in connection with the water filter cartridge 32 for collecting water along the inclined posture of each water filter cartridge 32. Such a downflow collection passage 53 has a flow channel-like structure and has the function of collecting the water leaking out when the water filter cartridge 32 is inserted or removed during replacement.

[0170] Furthermore, the downstream water collection path 53 is pre-assembled into the components constituting the water purification filter cartridge section for connecting and fixing the water purification filter cartridge 32. Therefore, it is not a component that is directly installed in each water purification filter cartridge 32 beforehand.

[0171] Furthermore, near the downstream end 54 of each downstream water collection path 53 (i.e., near the lowest end of each water purification filter cartridge), a connecting path 55 is provided to allow leaked water to flow down to the next downstream water collection path 53 further down. This connecting path 55, like the downstream water collection path 53, is formed as a tubular structure with an internal cavity.

[0172] Because of this method, the water concentrated in each downstream collection path 53 moves to the lower downstream collection path 53 via the connecting path 55, and is finally discharged to the outside from the connecting path 55 at the bottom of the water purifier 31 with the water filter cartridge.

[0173] In addition, such as Figure 13 As shown, the way the leaked water at the bottom can be discharged can be set as follows: the connecting passage 55 is extended to the front of the water purifier 31 with the water purification filter cartridge, and an outlet 56 is provided at the lower front of the water purifier 31 with the water purification filter cartridge to collect the leaked water discharged from the outlet 56.

[0174] This method minimizes water leakage when replacing the water filter cartridge, and any leakage will not remain inside the device. Therefore, it offers excellent convenience for replacement personnel and is also superior in terms of hygiene.

[0175] [13. Regarding the twelfth implementation]

[0176] Next, the twelfth embodiment will be described using FIG15. As shown in FIG15, in the twelfth embodiment, the operation of the water filter cartridge is characterized by having a displacement mechanism that allows the posture of each water filter cartridge 32 to be displaced between an inclined posture and a horizontal posture as an inclined posture holding mechanism.

[0177] As one type of movable mechanism for displacement in this state, it is driven by a rotating shaft 70 located near the center of each water filter cartridge 32.

[0178] Preferably, the displacement is such that all the water filter cartridges 32 in a water purifier 31 with a filter cartridge are connected by a connecting component, so that all the water filter cartridges 32 move in a tilting motion synchronously. However, in this embodiment, it can also be configured such that the water filter cartridges 32 are not connected and each water filter cartridge 32 moves independently from the tilting state to the parallel state.

[0179] In this way, it is possible to quickly and easily switch between the tilted state during use and the horizontal state during insertion and removal.

[0180] Furthermore, if this method is used, when the filter cartridge is pulled out to half its length, the filter cartridge will be in a parallel state or tilted in the opposite direction, thus further reducing concerns about water being discharged to the outside from near the assembly port 37.

[0181] In addition, as one way to install water purifier filter cartridges, such as Figure 15A As shown, the water filter cartridge is connected to the rotating shaft 70 near its center. Furthermore, since a connecting member that can rotate easily is clamped at the connection between the rotating shaft 70 and the water filter cartridge 32, the water filter cartridge can be easily moved in the tilting direction.

[0182] Since the water purifier 31 with the water filter cartridge is connected to the water filter cartridge 32 in this way, the operator can easily tilt the water filter cartridge 32 by holding the end of the uppermost water filter cartridge 32 and gently applying force in the desired direction to tilt the water filter cartridge as a whole.

[0183] Furthermore, as another approach, it can be configured to include a displacement mechanism and a posture synchronization mechanism 71, wherein the displacement mechanism can shift the posture of the water filter cartridge 32 between a downward tilt posture and a horizontal posture, and when the posture of one water filter cartridge 32 is shifted, the other water filter cartridges 32 are also shifted to the same posture.

[0184] If this is the case, all 32 water filter cartridges will move in tandem, allowing them to switch between tilted and horizontal positions at once.

[0185] Figure 15 illustrates the specific implementation of such a mechanism that includes both a displacement mechanism and an attitude synchronization mechanism. For example... Figure 15A As shown, a rotating shaft 70 is located near the center of each water purification filter cartridge. This rotating shaft functions as a displacement mechanism, and each water purification filter cartridge is connected to the rotating shaft 70.

[0186] Furthermore, each water filter cartridge 32 has a posture synchronization mechanism 71 connected to each water filter cartridge 32 near both ends.

[0187] Therefore, for example, if the posture of a water filter cartridge 32 is changed by the displacement mechanism, all water filter cartridges 32 can be tilted to approximately the same angle by using the posture synchronization mechanism 71.

[0188] Here, the rotating shaft 70, which serves as the displacement mechanism, is pre-installed in the water filter cartridge section of the water purifier 31 equipped with the water filter cartridge. Therefore, this displacement mechanism and the posture synchronization mechanism 71 are used to insert and remove the water filter cartridge 32 for replacement.

[0189] Because the twelfth embodiment is implemented in this way, it offers excellent convenience when removing the water purification filter cartridge 32, etc.

[0190] And, as Figure 15A The diagram shows one method in which the water filter cartridge 32 can be tilted within a range of approximately -30° to approximately +30°. The water filter cartridge is normally used at approximately 30°, but in this case, a limiting member or similar element is provided to fix the water filter cartridge at approximately 30° to maintain this position.

[0191] Next, the insertion and removal method of the water filter cartridges in this embodiment will be explained in detail. First, in the normal operating state of the water purifier, each water filter cartridge 32 is positioned such that its rear end faces downwards. Figure 15A The land is tilted as shown.

[0192] Then, from this position, pull the water filter cartridge 32 forward and upward. Then, if the water filter cartridge 32 is pulled out to approximately half its length, the entire water filter cartridge will tilt forward and downward due to its own weight. Figure 15B The state shown is maintained, which is approximately parallel to the horizontal plane.

[0193] Then, while maintaining this state that is roughly parallel to the horizontal plane, pull out the remaining half of the water filter cartridge, which is the way to remove the water filter cartridge from the water purifier with the water filter cartridge.

[0194] In this configuration, the water filter cartridge is tilted upwards and forwards during normal use, making it easy to remove. Furthermore, if approximately half of the filter cartridge is removed, it automatically tilts to a position roughly parallel to the horizontal plane, thus preventing leaks from overflowing when the cartridge is removed and keeping any water inside.

[0195] Furthermore, the posture synchronization mechanism connecting each water filter cartridge 32 can be configured as follows: a water filter cartridge frame for fixing each water filter cartridge is pre-installed in the water filter cartridge section, and the frames of each water filter cartridge are connected to each other using connecting components. In this manner, after each water filter cartridge is removed, the remaining water filter cartridges are also held by the posture synchronization mechanism.

[0196] Furthermore, the above method can be configured as follows: after removing the water filter cartridge 32, tilt it in a forward direction that is opposite to the normal use state to drain the leaked water trapped inside.

[0197] Alternatively, each water filter cartridge 32 can be tilted forward beforehand, and after approximately half of the water filter cartridge 32 is removed as described above, it becomes parallel. In this case, the leaked water will not remain near the assembly port 37 of the water filter cartridge 32, but will be quickly discharged along the tilt of the water filter cartridge frame that houses the water filter cartridge 32.

[0198] Furthermore, the handle of the filter cartridge can be located on the end face 46 of each filter cartridge. Alternatively, the handle can be configured to be normally stored parallel to the end face 46, and then pulled up for use.

[0199] The displacement mechanism and posture synchronization mechanism described above are just one example. Any method that allows the water filter cartridge to be easily held in the same posture is acceptable; there are no restrictions on the method.

[0200] [14. Regarding the thirteenth implementation method]

[0201] Next, use Figure 16A The thirteenth implementation method will be described. For example... Figure 16A As shown, in the thirteenth embodiment, the water filter cartridge 32 is tilted upwards as it moves toward the rear of the water purifier 31 with the water filter cartridge. That is, in a water filter cartridge 32, the side with the mounting port 37 is provided as the upper part.

[0202] In this manner, for example, when a water purifier 31 with a water filter cartridge is installed on the upper part of a shelf or other upper part of the sink 21, the water filter cartridge 32 can be easily replaced.

[0203] and, Figure 16B Another embodiment of the thirteenth implementation is shown. As described... Figure 16B As shown, in the water purifier 31 with filter cartridges, it is also possible to arrange the base 43, which houses the pump 88, control components, etc., as the upper part, and arrange each filter cartridge 32 at the lower part of the base 43, so that the filter cartridges 32 can be replaced more easily. In this way, each filter cartridge 32 is located in the lower part of the water purifier, so in the water purifier 31 with filter cartridges arranged at the upper part, the filter cartridges can be replaced more easily.

[0204] [15. Regarding the fourteenth implementation]

[0205] Next, use Figure 17 The fourteenth embodiment will be described. For example... Figure 17 As shown, in the fourteenth embodiment, in addition to the water purification filter cartridge tilting upwards as it tends to move backwards, it is also configured such that the amount of forward protrusion of each filter cartridge 32 is greater as it moves upwards.

[0206] In this way, all sides of each filter cartridge can be easily visually identified from below. Furthermore, if labels indicating the type of filter cartridge are affixed to the sides of each cartridge, it becomes even easier to distinguish the type of filter cartridge.

[0207] Furthermore, if the protrusion of each filter cartridge 32 is uniform across all filter cartridges, the aesthetics are excellent, thus making it a preferred choice.

[0208] [16. Regarding the fifteenth implementation]

[0209] Next, use Figure 18 The fifteenth embodiment will be described. For example... Figure 18 As shown, in the fifteenth embodiment, the upper end of the lower filter cartridge is positioned higher than the lower end of the upper filter cartridge. That is, each filter cartridge is arranged with a certain degree of steep inclination.

[0210] Specifically, the lower end (A') of the first water filter cartridge 33 is lower than the upper end (B) of the second water filter cartridge 34. Furthermore, the lower end (B') of the second water filter cartridge 34 is lower than the upper end (C) of the third water filter cartridge 35. Thus, each filter cartridge 32 is arranged such that, compared to the lower end of the upper filter cartridge, the upper end of the lower cartridge is higher.

[0211] In this way, the gaps between the filter cartridges become smaller, and the filter cartridges have a steep incline, which helps to reduce the overall height of the water purifier with filter cartridges. Therefore, it results in a compact design, allowing the water purifier to be stored even in relatively narrow spaces.

[0212] In this fifteenth embodiment, the filter cartridge may be tilted upwards or downwards.

[0213] [17. Electrical structure of a water purifier according to one embodiment of the present invention]

[0214] Next, use Figure 19A and Figure 19B The electrical structure of a water purifier according to one embodiment of the present invention will be described. Figure 19A The diagram shows the electrical system and water system of the water purifier during standby. Figure 19B The diagram shows the electrical system and water system of the water purifier when it is filled with water.

[0215] First, the electrical system diagram and water system diagram during water supply will be explained. For example... Figure 19A As shown in the electrical system diagram (dashed line portion), in a water purifier according to one embodiment of the present invention, a control unit 80 is first provided as the center of the electrical system diagram.

[0216] The control unit 80 consists of a CPU (Central Processing Unit), ROM (Read-Only Memory), RAM (Random Access Memory), etc. The ROM stores programs required for CPU processing, while the RAM functions as a temporary storage area when these programs are executed.

[0217] Furthermore, since the control unit 80 is connected to the power adapter 81, display unit 82, WiFi (Wireless Fidelity) unit 83, solenoid valve A 84, solenoid valve B 85, ​​flow measurement unit 86, electric valve 87, pump 88, Hall sensor 89, faucet control unit 90, and RFID communication unit 91, the control unit 80 undertakes the control functions such as connecting / disconnecting each part.

[0218] Let me explain each part separately. First, the power adapter 81 is a part that rectifies, transforms, and regulates the current of power obtained from commercial power sources, etc., and converts the power into a state suitable for supplying to the control unit 80 and various electrical structures.

[0219] Next, the display unit 82 connects to the RFID communication unit 91 (which will be used in subsequent processes) and each filter cartridge, and performs adjustment functions for displaying the on / off status of each filter cartridge. It also displays the flow rate of the filtered water and the replacement interval for each filter cartridge.

[0220] Furthermore, the RFID communication unit 91 is used for contactless communication with the RF tags pre-installed on each water filter cartridge. The control unit 50 of the water purifier A identifies the type of filter cartridge inserted in the water filter cartridge section via the RFID communication unit 91.

[0221] Furthermore, the WiFi unit 83 is a component used to communicate via WiFi and to check the operating status of the water purifier, order new filter cartridges, or update the firmware of the water purifier 31 with the water filter cartridge via predetermined software.

[0222] Furthermore, the solenoid valve A84 has a function to switch the flow of water into the water filter cartridge 32 from the outside to the inside of the water filter cartridge 32.

[0223] Furthermore, the solenoid valve B85 has an on / off switching function for the discharge of filtered water generated from the water filter cartridge 32.

[0224] Furthermore, the flow measurement unit 86 has the function of measuring the flow rate of the filtered water generated and discharged from the water purification filter cartridge 32.

[0225] Furthermore, the electric valve 87 regulates the drainage discharged from the third water purification filter cartridge 35 equipped with an RO filter.

[0226] Furthermore, the pump 88 is connected to the third water purification filter cartridge 35 and has the function of driving the movement of water within the water purification filter cartridge 32.

[0227] Furthermore, the Hall sensor 89 has the function of preventing malfunctions by detecting the energization of the electromagnet 92, which performs the opening and closing function of the cover 47.

[0228] Furthermore, the faucet control unit 90 has a function to switch the faucet on / off to control the flow of filtered water generated after filtration to subsequent processes such as the sink.

[0229] Next, the circuit structure inside the water filter cartridge 32 will be described. As described above, the self-control unit 80 is connected to the RFID communication unit 91 via the display unit 82. Furthermore, the RFID communication unit 91 is connected to each of the first water filter cartridge 33, the second water filter cartridge 34, and the third water filter cartridge 35, and has a switching function to turn the filtration function of each filter cartridge on / off.

[0230] Next, use Figure 19A and Figure 19B Describe the water system. For example... Figure 19A and Figure 19B As shown, water is first supplied from the water supply port 100 outside the water filter cartridge 32. Then, after foreign matter is removed from the water by the coarse filter 101, the water flows into the first water filter cartridge 33 through the solenoid valve A84 and the first water passage 102.

[0231] Here, the flow of water into the first water purifier filter cartridge 33 and other water purification processes can be regulated by opening and closing the solenoid valve A84. That is, the on / off switching of this water purifier is controlled by switching the solenoid valve A84 open and close.

[0232] Furthermore, the first water purification filter cartridge 33 is discharged from the water purification filter cartridge 32 to the outside via the second water passage 103, pump 88, third water passage 104, third water purification filter cartridge 35, fourth water passage 105, second water purification filter cartridge 34, fifth water passage 108, flow measurement unit 86, solenoid valve B85, and sixth water passage 109 from the outlet 110.

[0233] Here, pump 88 has the function of pressurizing and supplying water to the third water purification filter cartridge 35. This is because filtration in the third water purification filter cartridge 35 requires sufficient water pressure.

[0234] Furthermore, a drainage path 106 is provided starting from the third water purification filter cartridge 35. The drainage path 106 branches midway into a water path connected to the outlet 111 and a circulation path 107 connected to the first water path 102.

[0235] In the waterway connected to the outlet 111, an electric valve 87 is installed in the middle section. The electric valve 87 has the function of regulating the amount of water discharged from the outlet 111.

[0236] Furthermore, during water flow, the electric valve 87 operates, functioning to drain water from the third water purification filter cartridge 35 and to return the drained water from the third water purification filter cartridge 35 to the circulation path 107 of the first water purification filter cartridge 33. Water introduced into the first water path 102 via the circulation path 107 mixes with water supplied from the water supply port 100 and is filtered through the aforementioned water purification filter cartridge.

[0237] Alternatively, the drainage from the third water purification filter cartridge 35 and along the aforementioned... Figure 11A The drainage generated near the assembly port 37 during the insertion and removal of the filter cartridge, such as that discharged from pipe 38, is combined and discharged into the drainage channel 106.

[0238] The water path that returns the wastewater from the third water purification filter cartridge 35 to the first water purification filter cartridge 33 via the circulation path 107 is configured for the following purpose: by circulating a portion of the wastewater from the third water purification filter cartridge 35 back into the filter cartridge for reuse, the wastewater volume is reduced and the water utilization efficiency is improved.

[0239] Furthermore, the filtered water discharged from the third soft water 18 to the outside of the water purification filter cartridge 32 is used for drinking water, etc.

[0240] [18. Relationship between the embodiment of the water purifier according to one embodiment of the present invention and the claims]

[0241] Next, the relationship between the invention described in each claim of this application and each embodiment will be explained.

[0242] First, the invention described in claim 1 of this application corresponds to the invention described in the second embodiment.

[0243] Furthermore, the invention described in claim 2 of the present application corresponds to the invention described in the third embodiment.

[0244] Furthermore, the invention described in claim 3 of the claims of this application corresponds to the invention described in the second embodiment.

[0245] Furthermore, the invention described in claim 4 of the present application corresponds to the invention described in the second and third embodiments.

[0246] Furthermore, the invention described in claim 5 of the present application corresponds to the invention described in the fourth and fifth embodiments.

[0247] Furthermore, the invention described in claim 6 of the claims of this application corresponds to the invention described in the fourth and fifth embodiments.

[0248] Furthermore, the invention described in claim 7 of the present application corresponds to the invention described in the sixth embodiment.

[0249] Furthermore, the invention described in claim 8 of the claims of this application corresponds to the invention described in the fourteenth embodiment.

[0250] Furthermore, the invention described in claim 9 of the claims of this application corresponds to the invention described in the fifteenth embodiment.

[0251] Furthermore, the invention described in claim 10 of the claims of this application corresponds to the invention described in the seventh embodiment.

[0252] Furthermore, the invention described in claim 11 of the claims of this application corresponds to the invention described in the eighth embodiment.

[0253] Furthermore, the invention described in claim 12 of the present application corresponds to the invention described in the ninth embodiment.

[0254] Furthermore, the invention described in claim 13 of the present application corresponds to the invention described in the tenth embodiment.

[0255] Furthermore, the invention described in claim 14 of the present application corresponds to the invention described in the eleventh embodiment.

[0256] Furthermore, the invention described in claim 15 of the present application corresponds to the invention described in the twelfth embodiment.

[0257] Furthermore, the invention described in claim 16 of the claims of this application corresponds to the invention described in the twelfth embodiment.

[0258] Furthermore, the water purifier of this invention can contribute to the United Nations' Sustainable Development Goals (SDGs) Goal 3 (Health and Well-being of All People) and Goal 6 (Safe Water and Toilets Worldwide).

[0259] The embodiments described above are merely one approach. Inventions that are considered to have minor modifications or other similar features and fall within the same technical scope are considered to fall within the same technical scope as this invention.

Claims

1. A water purifier, characterized in that, It has an inclined posture holding structure that holds the columnar water filter cartridge, which is installed and removed by plugging and unplugging along its axial direction, in a posture with a predetermined inclination relative to the horizontal less than that of the vertical while water is flowing through it.

2. The water purifier according to claim 1, characterized in that, The aforementioned predetermined inclination is that the direction in which the water filter cartridge is inserted and installed has a downward inclination towards the vertical component.

3. The water purifier according to claim 1, characterized in that, The aforementioned predetermined inclination is an upward inclination of the direction in which the water filter cartridge is inserted and installed towards the vertical.

4. The water purifier according to claim 1, characterized in that, Multiple water filter cartridges described above can be inserted and installed, and the tilting posture holding structure holds at least a portion of the multiple water filter cartridges, i.e., multiple specific water filter cartridges, in a downward tilting posture or an upward tilting posture.

5. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure holds the specific water purification filter cartridge in different downward tilting or upward tilting postures.

6. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure holds the aforementioned multiple specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and holds them such that the tilt angle of the aforementioned specific water purification filter cartridge disposed below is greater than the tilt angle of the aforementioned specific water purification filter cartridge disposed above.

7. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure holds all of the aforementioned specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and holds them in such a way that the amount of protrusion of the pull-out side end face of the aforementioned specific water purification filter cartridge disposed below during assembly in the pull-out direction is greater than the amount of protrusion of the pull-out side end face of the aforementioned specific water purification filter cartridge disposed above during assembly in the pull-out direction.

8. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure holds the aforementioned multiple specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and holds them in such a way that the amount of protrusion of the pull-out side end face of the aforementioned specific water purification filter cartridge disposed on the upper side during assembly in the pull-out direction is greater than the amount of protrusion of the pull-out side end face of the aforementioned specific water purification filter cartridge disposed on the lower side during assembly in the pull-out direction.

9. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure holds the aforementioned multiple specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and holds them in such a way that the lower vertical position of the aforementioned specific water purification filter cartridge disposed on the upper side during assembly is higher than the upper vertical position of the aforementioned specific water purification filter cartridge disposed on the lower side during assembly.

10. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure holds the multiple specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked in the vertical direction, and holds the heaviest specific water purification filter cartridge in the lowest position.

11. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure holds the multiple specific water purification filter cartridges in a downward tilting posture or an upward tilting posture when they are stacked vertically, and holds the specific water purification filter cartridge with the highest replacement frequency in the uppermost position.

12. The water purifier according to claim 2, characterized in that, The inlet of the drainage path should face downwards from the connecting end face of the aforementioned water purification filter cartridge.

13. The water purifier according to claim 2, characterized in that, The aforementioned water purifier housing is equipped with a downward-opening cover. This cover is movable between a closed state, covering the insertion / removal surface of the water filter cartridge, and an open state, allowing the water filter cartridge to be inserted and removed without covering the insertion / removal surface. The configuration of the cover in the open state is positioned below the pull-out trajectory of the water filter cartridge, thus functioning as a water receiving tray.

14. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure maintains the multiple specific water purification filter cartridges in a vertically overlapping state, alternating between downward tilting and upward tilting postures. Below each specific water purification filter cartridge is a flow-down collection channel that follows the inclined posture of that specific water purification filter cartridge. A connecting passage is provided at the downstream end of each downstream water collection path to allow water to flow down to a further downstream water collection path, and the connecting passage of the lowest downstream water collection path is constructed to allow water to flow down to a water receiving tray or drainage path.

15. The water purifier according to claim 1, characterized in that, The aforementioned tilting posture holding structure has a displacement mechanism that allows the water filter cartridge to shift between a downward tilting posture and a horizontal posture.

16. The water purifier according to claim 4, characterized in that, The aforementioned tilting posture holding structure includes: a displacement mechanism that enables the posture of the specific water filter cartridge to shift between a downward tilting posture and a horizontal posture; and a posture synchronization mechanism that, when the posture of one specific water filter cartridge is shifted, the postures of other specific water filter cartridges are also shifted to the same posture.

Images