water purifier

Abstract

To provide a water purifier that is installed in a low position, such as under a sink, and that allows workers to easily replace the water purification cartridge and perform other tasks without burdening them. [Solution] The present invention provides a water purifier that allows a worker to easily replace a water purification cartridge at a low position by providing a tilted posture holding structure that holds a columnar water purification cartridge, which is attached and detached by inserting and removing it in the axial direction, in a state in which water can pass through it, at a predetermined inclination less than vertical to the horizontal. Furthermore, the present invention is a water purifier characterized in that the predetermined inclination is a downward slope in which the direction in which the water purification cartridge is inserted has a component that is vertically downward.

Description

Technical Field

[0001] The present invention relates to a water purifier. Specifically, it relates to an under-sink water purifier installed under a sink in a general household kitchen, which is used to filter foreign substances from raw water such as tap water and utilize it for drinking water, etc.

Background Art

[0002] Conventionally, household water purifiers for purifying and filtering tap water for use as drinking water, etc. are known. And, for example, the above-mentioned water purifiers for purifying drinking water for cooking in the kitchen are installed near the water discharge part where the water pipe is connected and are also installed under the sink where they can be easily managed.

[0003] Also, as a conventional technology, there has been provided a water purification cartridge in which a check valve can be easily fixed to the raw water inlet, and a water purifier equipped with such a water purification cartridge, in which a check valve for preventing backflow of raw water or filter media does not easily fall off from the water purification cartridge (Patent Document 1).

[0004] Also, as another conventional technology, there has been provided an under-sink type water purifier that can be installed in various types of sinks such as a drawer type sink, which can compact the installation space of the water purifier under the sink and increase the effective space under the sink (Patent Document 2).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, such water purifiers are generally installed in low positions, such as under the kitchen sink. Therefore, when replacing the water purification cartridge, the worker has to crawl under the sink to perform the replacement work, and generally, this configuration does not allow for easy adjustment of the water purifier.

[0007] Furthermore, when replacing the water purification cartridge in a typical water purifier as described above, the cartridge is positioned approximately parallel to the horizontal plane, making it difficult to easily remove the cartridge, which is located at a lower position than the worker. Therefore, a configuration that allows for easier removal is desirable.

[0008] The present invention aims to solve the above problems. [Means for solving the problem]

[0009] The present invention is a water purifier equipped with an inclined posture holding structure that holds a columnar water purification cartridge, which is attached and detached by insertion and removal in the axial direction, in a position with a predetermined inclination less than vertical with respect to the horizontal, while allowing water to pass through.

[0010] Furthermore, the present invention is characterized in that the predetermined inclination is a downward slope in which the orientation in which the water purification cartridge is inserted has a component that is vertically downward.

[0011] Furthermore, the present invention is characterized in that the predetermined inclination is an upward slope in which the orientation in which the water purification cartridge is inserted has a component that is vertically upward.

[0012] Furthermore, the present invention is characterized in that multiple water purification cartridges can be inserted, and the tilt posture holding structure holds at least some of the multiple water purification cartridges in a downward or upward tilt posture.

[0013] Furthermore, the present invention is characterized in that the inclined posture holding structure holds the specific water purification cartridges in different downward or upward inclined postures.

[0014] Furthermore, the present invention is characterized in that the inclined posture holding structure holds the plurality of specific water purification cartridges in a state where they are superimposed in the vertical direction, with each cartridge in either a downward or upward inclined posture, and holds them such that the inclination angle of the specific water purification cartridge positioned relatively lower is greater than the inclination angle of the specific water purification cartridge positioned relatively higher.

[0015] Furthermore, the present invention is characterized in that the inclined posture holding structure holds the plurality of specific water purification cartridges in a state where they are superimposed in the vertical direction, with each cartridge in a downward or upward inclined posture, and holds them such that the amount of protrusion of the removal-side end face in the removal direction when the relatively lower-positioned specific water purification cartridge is installed is greater than the amount of protrusion of the removal-side end face in the removal direction when the relatively upper-positioned specific water purification cartridge is installed.

[0016] Furthermore, the present invention is characterized in that the inclined posture holding structure holds the plurality of specific water purification cartridges in a state where they are superimposed in the vertical direction, with each cartridge in a downward or upward inclined posture, and holds them such that the amount of protrusion of the removal-side end face in the removal direction when the relatively upper specific water purification cartridge is installed is greater than the amount of protrusion of the removal-side end face in the removal direction when the relatively lower specific water purification cartridge is installed.

[0017] Furthermore, the present invention is characterized in that the inclined posture holding structure holds the plurality of specific water purification cartridges in a downward or upward inclined posture when they are superimposed vertically, and holds them at a position where the lower vertical end position of the specific water purification cartridge positioned relatively above is higher than the upper vertical end position of the specific water purification cartridge positioned relatively below is higher.

[0018] Furthermore, the present invention is characterized in that the inclined posture holding structure holds the plurality of specific water purification cartridges in a vertically overlapping state, all in a downward or upward inclined posture, and holds the heaviest specific water purification cartridge in the lowest relative position.

[0019] Furthermore, the present invention is characterized in that the tilt posture holding structure holds the plurality of specific water purification cartridges in a vertically overlapping state, all in a downward tilt posture or all in an upward tilt posture, and holds the specific water purification cartridge with the highest replacement frequency in the uppermost position.

[0020] Furthermore, the present invention is characterized in that the inlet of the drainage channel is positioned below the connection side end face of the water purification cartridge.

[0021] Furthermore, the present invention is characterized in that the housing of the water purifier is provided with a downward-opening cover body that can be displaced between a closed state that covers the insertion / removal surface of the water purification cartridge of the housing and an open state that does not cover the insertion / removal surface and allows the water purification cartridge to be inserted and removed, and the position of the cover body in the open state is below the removal trajectory of the water purification cartridge so that it functions as a water receiving tray.

[0022] Furthermore, the present invention is characterized in that the inclined posture holding structure alternately holds the plurality of specific water purification cartridges in a downward inclined posture and an upward inclined posture while they are superimposed in the vertical direction, and below each specific water purification cartridge there is a flow collection channel that follows the inclined posture of the specific water purification cartridge, and at the downstream end of each flow collection channel there is a connecting passage that allows water to flow down to a lower flow collection channel, and the connecting passage of the lowest flow collection channel is configured to allow water to flow down to a water receiving tray or drainage channel.

[0023] Furthermore, the present invention is characterized in that the tilt posture holding structure includes a displacement mechanism that allows the posture of the water purification cartridge to be displaced between a downward tilt posture and a horizontal posture.

[0024] Further, in the present invention, the tilt posture holding structure includes a displacement mechanism capable of displacing the posture of the specific water purification cartridge between a downward tilt posture and a horizontal posture, and a posture synchronization mechanism that displaces the posture of another specific water purification cartridge to the same posture when the posture of one specific water purification cartridge is displaced.

Advantages of the Invention

[0025] When the water purifier according to the present invention is used, since the water purification cartridge is connected and disposed in the water purifier at a predetermined tilt posture less than perpendicular to the horizontal direction, the water purification cartridge can be easily taken out from the obliquely upper direction of the water purifier. Therefore, it is easy to perform operations such as replacing the water purification cartridge of the water purifier disposed under the sink or the like.

Brief Description of the Drawings

[0026] [Figure 1] It is a schematic diagram showing an overview of the entire water purification device according to an embodiment of the present invention in a multi-family house. [Figure 2] It is a schematic diagram showing an overview of the arrangement mode of the water purifier according to an embodiment of the present invention in a single-family section within a multi-family house. [Figure 3] It is a schematic diagram when the water purifier according to an embodiment of the present invention is disposed under the sink. [Figure 4] It is a perspective view of the water purifier according to an embodiment of the present invention. [Figure 5A] It is a side view showing the inside of the water purifier according to the first embodiment of the present invention. [Figure 5B] It is a cross-sectional view showing the internal structure of the water purification cartridge of the water purifier according to the first embodiment of the present invention. [Figure 6] It is a side view showing the internal structure of the water purifier according to the second embodiment of the present invention. [Figure 7] It is a side view showing the internal structure of the water purifier according to the third embodiment of the present invention. [Figure 8] It is a side view showing the internal structure of the water purifier according to the fourth embodiment of the present invention. [Figure 9]This is a side view showing the internal structure of a water purifier according to the fifth embodiment of the present invention. [Figure 10A] This is a side view showing the internal structure of a water purifier according to the sixth embodiment of the present invention, in which the front of the water purification cartridge is tilted downwards. [Figure 10B] This is a side view showing the internal structure of a water purifier according to the sixth embodiment of the present invention, in which the rear of the water purification cartridge is tilted downwards. [Figure 11A] This is a side view showing the internal structure of a water purifier according to the ninth embodiment of the present invention. [Figure 11B] This is a side view showing the drainage channel of a water purifier according to the ninth embodiment of the present invention. [Figure 11C] Figure 11B is a cross-sectional view showing the structure of the drainage path adjacent to the water purification cartridge of a water purifier according to the ninth embodiment of the present invention, as indicated by the dotted line. [Figure 12A] This is a side view showing the internal structure of a water purifier according to the tenth embodiment of the present invention in an open state when the cover body is opened. [Figure 12B] This is a side view showing the internal structure of a water purifier according to the tenth embodiment of the present invention in the closed state when the cover is closed. [Figure 13] This is a side view showing the internal structure of a water purifier according to the eleventh embodiment of the present invention. [Figure 14] This is a side view showing the internal structure of a water purifier according to another embodiment of the eleventh embodiment of the present invention. [Figure 15A] This figure shows the arrangement of the water purification cartridge section of the water purifier according to the twelfth embodiment of the present invention when the water purification cartridge is tilted in a rearward and downward direction. [Figure 15B] This figure shows the arrangement of the water purification cartridge section of a water purifier according to the twelfth embodiment of the present invention, when the water purification cartridge is being removed while it is in a state substantially parallel to the horizontal plane. [Figure 16A] This is a side view showing the arrangement of a water purifier according to the thirteenth embodiment of the present invention when the rear of the water purification cartridge is tilted upwards. [Figure 16B]This is a side view showing another arrangement of the water purification cartridge of the water purifier according to the thirteenth embodiment of the present invention, when the cartridge is tilted with its rear end facing upwards. [Figure 17] This is a side view showing one configuration of a water purifier according to the fourteenth embodiment of the present invention, where the amount of protrusion of the water purification cartridge increases towards the top. [Figure 18] This is a side view showing one configuration of a water purifier according to the fifteenth embodiment of the present invention, where the height of the upper end of the lower water purification cartridge is higher than the height of the lower end of the upper water purification cartridge. [Figure 19A] This figure shows the electrical system diagram and water channel system diagram of a water purifier according to one embodiment of the present invention, in standby mode. [Figure 19B] This figure shows the electrical system diagram and water channel system diagram of a water purifier according to one embodiment of the present invention during water flow. [Modes for carrying out the invention]

[0027] The present invention is a water purifier equipped with an inclined posture holding structure that holds a columnar water purification cartridge, which is attached and detached by insertion and removal in the axial direction, in a position with a predetermined inclination less than vertical with respect to the horizontal, while allowing water to pass through.

[0028] [1. Regarding the installation of a water purifier according to one embodiment of the present invention] First, Figures 1 to 3 will be used to describe the installation configuration of a water purifier according to one embodiment of the present invention in an apartment building.

[0029] As shown in Figure 1, the water purification system and water purifier according to one embodiment of the present invention are intended for use in an apartment building 1 in which multiple households reside. The overall configuration of the water purifier A is such that the living space section 2 where each household resides is located above ground, and the supply section 3 that supplies water to each household is located underground.

[0030] As shown in Figure 1, when water is drawn into the building from the external water pipe 4, the water is drawn into the building through the pipe 9 and supplied from the outside via the filter 6 and water supply pump 5 located in the underground supply section 3. At this time, the raw water 7 is first filtered by the filter 6, and first filtered water 8 is produced with a reduced amount of foreign matter in the water.

[0031] The first filtered water 8, which is taken in from the water pipe 4 and purified by filters, is then transported to each residential area via pipes 9, etc.

[0032] Next, the water distribution configuration within each household's residential area will be described using Figure 2. As shown in Figure 2, the first filtered water 8, transported from the water supply pump 5 in Figure 1 through the piping 9 to each residential area, is first connected to the first water purification unit 11 located in the pipe space 10 within each household's residential area.

[0033] The first filtered water 8, transported to each household's residential area, is further purified in the first water purification unit 11 located in this relay section. The first water purification unit 11 is equipped with a pre-filter 12 and a water purifier 13, and the water is filtered again by these pre-filter 12 and water purifier 13.

[0034] Here, the pre-filter 12 uses a filter with a pore size larger than 50 nm. Furthermore, the pre-filter 12 has the function of adsorbing residual chlorine and other particles in the water, removing larger molecules, and sending the water to the next filtration process.

[0035] The second filtered water 14, which is filtered and produced by the water purifier 13, is then branched and transported to a first piping system 15 that carries water for use in toilets, washbasins, and baths, and a second piping system 16 that carries water for use in sinks, drinking water, etc.

[0036] In this process, the second filtered water 14 in the first piping 15 passes through a water softener 17 along the way and is converted into softened water, becoming the third softened water 18. This generated third softened water 18 is then used as water for toilets, washbasins, baths, etc., as described above.

[0037] Meanwhile, the second filtered water 14 that has passed through the second piping 16 is purified in the second water treatment unit 19 located under the sink, etc., and then used as water that directly enters the mouths of residents, such as in sinks, washbasins, and drinking fountains.

[0038] Next, using Figure 3, we will describe the arrangement of the water purifier according to one embodiment of the present invention under the sink. As shown in Figure 3, the water purifier 20 according to one embodiment of the present invention is installed vertically in the under-sink space 22 beneath the sink 21. The second filtered water 14 is further filtered by this water purifier to become purified water, which is then used for washing dishes, etc. That is, the second water purification unit 19 in Figure 2 corresponds to the water purifier 20 in Figure 3.

[0039] Here, the installation of the water purifier according to one embodiment of the present invention is assumed to be in a low position such as under the sink. Therefore, it is not limited to under the sink, and the installation location can be diverse as long as the water purifier is installed in a low position such as in the space below the sink.

[0040] However, as will be described later, another embodiment involves the installation of the unit on an upper shelf or similar location above the sink.

[0041] Furthermore, the arrangement of piping under the sink is not limited to the diagram shown in Figure 3; various arrangements are acceptable. Any arrangement that properly stores and arranges the piping under the sink is acceptable, regardless of the type.

[0042] Thus, the water purifier 20 according to one embodiment of the present invention is installed under the sink 21. Therefore, the purified water filtered and produced by this water purifier 20 is used immediately without passing through long pipes. This ensures the hygienic safety of the purified water, which would otherwise be lost due to passing through long pipes.

[0043] Furthermore, as shown in Figure 3, because the pipes through which the purified water is transported are short, even when water use is stopped, only a small amount of purified water remains in the pipes. In this respect as well, the hygienic safety of the purified water is ensured.

[0044] Furthermore, as shown in Figure 3, since the water purifier according to one embodiment of the present invention is installed under the sink 21, when adjusting the water purifier, such as replacing the water filtration cartridge, the worker will have to crawl under the sink 21 to perform the replacement work.

[0045] [2. Regarding a water purifier according to one embodiment of the present invention] First, a water purifier according to one embodiment of the present invention will be described using Figures 4 and 5. Figure 4 is a perspective view of the water purifier according to one embodiment of the present invention. Figure 5A is a side view of the internal structure of the water purifier according to one embodiment of the present invention, and Figure 5B is a cross-sectional view of the water purification cartridge according to one embodiment of the present invention.

[0046] First, the water purifier according to one embodiment of the present invention shown in Figures 4 and 5 is a configuration that shows the orientation of a typical water purification cartridge. The present invention is an invention that modifies the orientation of the water purification cartridge from the water purifier configuration according to one embodiment shown in Figure 5A.

[0047] Furthermore, in Figure 5A, three water purification cartridges for the water purifier are arranged vertically on the right side of Figure 5A. To the left of each water purification cartridge (at the rear of the water purifier with water purification cartridges 31), there are mounting ports and piping for connecting to each water purification cartridge. In addition, an inlet 36 for water to flow into the water purifier with water purification cartridges 31 from the outside is located at the upper rear of the water purifier with water purification cartridges 31 (upper left of Figure 5A), and an outlet 39 for discharging filtered water to the outside is located at the lower rear of the water purifier with water purification cartridges 31 (lower left of Figure 5A).

[0048] The positions of the inlet 36 and outlet 39 are the same in other embodiments described later. However, as long as they have the same function, the positions of the inlet 36 and outlet 39 can be in various configurations, such as reversing their positions or having them at different heights.

[0049] Furthermore, although the inlet 36 and outlet 39 are located at the rear of the water purifier 31 with a water purification cartridge, there is no problem if they are located on the side or elsewhere.

[0050] Furthermore, a base 43 is provided at the bottom of each water purification cartridge 32 to support it. Although not shown in the diagram, a pump unit and the like are provided on the base 43 to promote the circulation of filtered water.

[0051] As shown in Figures 5A and 5B, in a water purifier 31 with a water purification cartridge according to one embodiment of the present invention, the water purification cartridge 32, in one embodiment, consists of three water purification cartridges 32 containing a filter material 57 such as a filtration filter, which are arranged substantially parallel to the horizontal plane.

[0052] In this specification, these three water purification cartridges 32 will be referred to and defined as the first water purification cartridge 33, the second water purification cartridge 34, and the third water purification cartridge 35, in order from top to bottom.

[0053] Furthermore, water flowing in from the inlet 36 located near the upper rear of the water purifier 31 with a water purification cartridge passes through each water purification cartridge 32, where it is filtered by the filter material 57 and other components contained within each cartridge. This process removes ions, colloids, bacteria, viruses, etc. from the water, making it safe to drink.

[0054] One embodiment of the filter material 57 in these water purification cartridges 32 is that the first water purification cartridge 33 is made of molded activated carbon. The second water purification cartridge 34 is a device that adds minerals and other substances to the filtered water after filtration.

[0055] Activated carbon, in particular, is a type of carbon produced by high-temperature processing using carbon-containing materials such as coconut shells and coal as raw materials. Its surface has numerous micropores, including macropores, mesopores, and micropores. Therefore, when water passes through activated carbon, specific substances in the water are adsorbed onto the activated carbon, allowing for the removal of those substances from the water.

[0056] Specifically, if such a filter material 57 is used, for example, molded activated carbon or granular activated carbon can remove chlorine, surfactants, pesticides, dioxins, and certain types of perfluorinated compounds (PFAS) while leaving minerals (such as Na ions) in the water.

[0057] Furthermore, the hollow fiber membrane, another filter material 57, is a membrane formed by the aggregation of hollow, straw-like threads. By passing water through this membrane, it is possible to remove foreign substances such as bacteria and mold from the water.

[0058] Furthermore, a reverse osmosis membrane may be used as the filter medium 57 of the third water purification cartridge 35. This reverse osmosis membrane extracts only water molecules from water through reverse osmosis. Therefore, it can remove ions, metals, viruses, and other minute particles from the water, and can remove almost all substances other than water. For this reason, drinking water can be produced from seawater using this reverse osmosis membrane. For this reason, when using the water purifier according to this embodiment, for example, to produce drinking water from seawater, it is preferable to use a reverse osmosis membrane in the water purification cartridge 32.

[0059] Here, the number of water purification cartridges 32 and the types of filter media 57 inside them are merely examples and are not limited to this configuration. Various combinations of filter media 57 are acceptable depending on the degree of filtration and the type of water being treated.

[0060] Furthermore, as shown in Figure 5A, each water purification cartridge 32 is provided with two connection ports 37 that connect to the water purifier 40. One connection port 37 has the function of allowing water to flow into the water purification cartridge 32, while the other connection port 37 has the function of allowing purified water to flow out of the water purification cartridge 32.

[0061] In one embodiment shown in Figure 5A, water flows in through the upper mounting port 37 of each water purification cartridge 32, and water is discharged through the lower mounting port 37.

[0062] Figure 5B shows one configuration of the water channels within the water purification cartridge 32. As shown in Figure 5B, water flowing into the water purification cartridge 32 from the upper mounting port 37 first passes through a water channel 58 located near the outer periphery of the water purification cartridge 32 and moves towards the center of the water purification cartridge 32 (arrows indicate the direction of water movement). Then, by passing the water through the filter material 57 located in the center of the water purification cartridge 32, foreign substances such as bacteria in the water purification cartridge 32 are removed, and filtered water is produced.

[0063] The filtered water is then discharged to the outside through the mounting port 37 at the bottom of the water purification cartridge 32.

[0064] The internal structure of the water purification cartridge 32 shown in Figure 5B is only one embodiment, and there can be various configurations for the filtration structure within the water purification cartridge 32. Any structure is acceptable as long as the water purification cartridge has the filtration function described above. Similarly, the water passage path is only one embodiment, and there can be various configurations as long as the water passes through the filter material and is capable of sufficient filtration.

[0065] Furthermore, as shown in Figure 5A, the shape of each water purification cartridge 32 is cylindrical or prismatic in one embodiment. However, it is not limited to these shapes, and various shapes are acceptable.

[0066] Furthermore, the number of water purification cartridges 32 is not limited to three, as shown in Figure 5A. As long as the present invention can be implemented, the number of water purification cartridges 32 is not limited.

[0067] Furthermore, this embodiment is merely one example, and there may be other configurations regarding the location and number of the mounting ports 37 through which water flows into the water purification cartridge or filtered water flows out, as well as the arrangement of the pipes.

[0068] Furthermore, each of the aforementioned water purification cartridges 32 is attached and detached by inserting and removing it in the axial direction. That is, in the case of a water purifier 31 with a water purification cartridge as shown in Figure 5A, the water purification cartridge 32 can be inserted and detached by moving it in parallel from the rear to the front of the water purifier 31, i.e., from left to right in Figure 5A.

[0069] Furthermore, the water purifier according to one embodiment of the present invention, described below, is an invention concerning the orientation of the water purification cartridge 32 and the orientation of the mounting port 37 for differentiating the orientation of the water purification cartridge 32.Therefore, there is no difference in the arrangement structure of the pipes connected to the water purification cartridge among the following embodiments, and it is substantially the same as the arrangement structure of this first embodiment.

[0070] [3. Regarding the second embodiment] Next, the second embodiment will be described using Figure 6. As shown in Figure 6, in the second embodiment, each water purification cartridge 32 is inclined diagonally upward toward its front (in other words, the mounting orientation of the water purification cartridge 32 is provided with an inclined posture holding structure that holds it in an upward inclination having a vertically upward component). At this time, the mounting port 37, which is the connection part to the water purifier 40, is also provided at an inclination to match each water purification cartridge 32. In addition, the water passage path by water pipes 38, etc., is the same as in the first embodiment.

[0071] As shown in Figure 6, in this second embodiment, the inclination angles of each water purification cartridge 32 constituting the water purification cartridge section of the water purifier with water purification cartridge 31 are all approximately the same. The inclination angle of each water purification cartridge 32 should be set at an appropriate angle, assuming that the water purifier with water purification cartridge 31 is installed under a sink. An example of the inclination angle of this water purification cartridge 32 is, for example, approximately 10° from the horizontal.

[0072] Furthermore, this inclination angle can vary depending on the installation location, for example, all water purification cartridges 32 may be inclined at 5°, 10°, or 15°. Depending on the installation location of the water purifier 31 with water purification cartridges, the water purification cartridges may be arranged at an appropriate angle.

[0073] Furthermore, this incline is arranged so that the rear side of the water purification cartridge 32, which is the mounting opening 37 for the water purifier 40, is downward, and the front side, which is the removal end face 45 side of the water purification cartridge 32, is upward.

[0074] In this second embodiment, when attaching or detaching each water purification cartridge 32, the operator only needs to insert or remove the cartridge 32 in an upward direction towards themselves, thus reducing the burden on the operator. Furthermore, because each water purification cartridge 32 is inserted or removed at an upward angle, even if water leaks from the water purification cartridge 32 near the mounting port 37, this leaked water will remain near the mounting port 37 and there is little risk of it leaking outside from the water purifier with water purification cartridge 31. Therefore, the operator can easily attach and detach the water purification cartridge 32. In addition, such leaked water can be easily dealt with by wiping it away when replacing the water purification cartridge.

[0075] Furthermore, in this configuration, the removal end face 45 of the water purification cartridge 32 is inclined diagonally upward. Therefore, by attaching a label indicating the type of water purification cartridge to the end face 46 of this removal end face 45, the operator can easily identify the type of water purification cartridge 32.

[0076] Furthermore, in this configuration, even when the water purifier 31 with a water purification cartridge is installed under the sink, the water purification cartridge 32 can be removed and inserted relatively easily.

[0077] Furthermore, in this embodiment, as shown in Figure 6, the mounting port 37 itself is inclined, and each water purification cartridge 32 connected to this mounting port 37 is also inclined. However, in another embodiment, the mounting port 37 itself is substantially parallel to the horizontal plane, and a base is provided to incline the water purification cartridges 32 themselves and their mounting ports 37, so that only all of the water purification cartridges 32 are inclined.

[0078] Furthermore, although Figure 5A illustrates one embodiment in which the water purification cartridges 32 are arranged vertically in a vertical line, other embodiments may also be used in which several water purification cartridges 32 are arranged in parallel, floating horizontally at the same height, or the water purification cartridges 32 are arranged in various directions, such as alternating left and right or alternating up and down.

[0079] In this configuration, compared to arranging them in a single vertical row, the height and width of the space required for arranging all the water purification cartridges can be controlled or freely adjusted, allowing for flexible adaptation to the space available for installing the water purification cartridges 32.

[0080] Another embodiment may involve a mixture of water purification cartridges 32 that are approximately parallel to the horizontal and water purification cartridges 32 that are inclined. In this case, for example, by making only the bottom water purification cartridge 32 inclined and the other water purification cartridges 32 approximately parallel to the horizontal plane, it is possible to make it easier to remove the bottom water purification cartridge, which is the most difficult to insert and remove.

[0081] Furthermore, the inclination in this embodiment is not limited to inclination in the vertical direction only. In other words, inclination in the diagonal upward direction or diagonal downward direction is also possible.

[0082] [4. Regarding the third embodiment] Next, the third embodiment will be described using Figure 7. As shown in Figure 7, in the third embodiment, each water purification cartridge 32 is inclined so that its front part is angled downward from the horizontal direction (in other words, the orientation in which the water purification cartridge 32 is mounted has a downward inclination with a component of vertical downward). Furthermore, the inclination angle of each of the three water purification cartridges 32 is approximately the same. This inclination angle is approximately 10°, as in the second embodiment, as in one embodiment.

[0083] In this configuration, where the entire water purification cartridge 32 is tilted, the cartridge 32 is tilted towards the rear, that is, towards the operator, making it easy to assess the state of the water purification cartridge 32 from above. Therefore, by attaching a label or the like to the top of the water purification cartridge, the type of water purification cartridge can be easily identified.

[0084] Furthermore, in this configuration, the condition of the water purification cartridge 32 can be observed from above, making it relatively easy to visually check the insertion and removal status of the cartridge into the mounting port 37.

[0085] Furthermore, for water purification cartridges that are arranged in a stacked manner and are not easily recognizable from above, labels or the like may be attached to the upper part of each water purification cartridge 32 near the removal end face 45, so that the type of water purification cartridge can be recognized by pulling the cartridge slightly forward.

[0086] Furthermore, when the water purification cartridge 32 is replaced and the cartridge is attached or detached, any leaking water from the attachment port 37 automatically flows downwards, allowing the leaked water to be easily discharged to the outside of the water purifier. As a result, there is less risk of leaked water accumulating inside the water purifier 31 with the water purification cartridge or near the attachment port 37, resulting in a hygienic configuration.

[0087] Furthermore, the inclination of each water purification cartridge 32 in this embodiment may take on various forms, as described above in the second embodiment.

[0088] [5. Regarding the fourth embodiment] Next, the fourth embodiment will be described using Figure 8. As shown in Figure 8, in the fourth embodiment, each water purification cartridge 32 of the water purifier with water purification cartridges 31 is arranged in a vertical direction, overlapping and inclined.

[0089] In this fourth embodiment, the inclination angles of each water purification cartridge 32 are different. One example of the inclination angles is 3° for the first water purification cartridge 33, 5° for the second water purification cartridge 34, and 7° for the third water purification cartridge 35. Each water purification cartridge is inclined upward from the horizontal direction towards the removal end face 45.

[0090] Here, the inclination angle of each water purification cartridge 32 increases as it goes downwards. With this configuration, even if the space for arranging the water purification cartridges in the water purifier 31 with water purification cartridges is narrow, sufficient space for arranging the water purification cartridges can be secured.

[0091] Furthermore, in this configuration, since the installation angle differs for each water purification cartridge 32, the type of water purification cartridge 32 can be identified by viewing the water purifier 31 with the water purification cartridges from the side. Therefore, it offers superior ease of use.

[0092] Furthermore, in this configuration, the angle of inclination is greater for the lower water purification cartridge 32, and the angle at the very bottom is the largest. Therefore, the worker can insert and remove the lower water purification cartridge 32 at a steeper angle of inclination, making it easier for the worker to insert and remove the cartridge.

[0093] Furthermore, the tilt angle of the water purification cartridge 32 in this embodiment is only one possible configuration. Except for excessive tilting, there may be various configurations for the tilt angle.

[0094] [6. Regarding the fifth embodiment] Next, the fifth embodiment will be described using Figure 9. As shown in Figure 9, in the fifth embodiment, the water purification cartridge is inclined, with the rear mounting opening 37 at the top and the front removal end face 45 at the bottom.

[0095] Furthermore, the inclination angle of each water purification cartridge 32 differs, with the lower cartridges being more inclined. Specifically, one possible configuration of the inclination angles of the water purification cartridges 32 is 3° for the first water purification cartridge 33, 5° for the second water purification cartridge 34, and 7° for the third water purification cartridge 35.

[0096] However, the inclination angle of each water purification cartridge 32 is merely one embodiment, and other inclination angles are acceptable as long as they do not result in an excessive inclination.

[0097] Furthermore, as mentioned above, the inclination angle of each water purification cartridge 32 is larger for the lower cartridges 32. In this configuration, because the inclination angle is larger for the lower cartridges 32, there is sufficient space between each water purification cartridge when inserting or removing the cartridges 32. Therefore, the operator can easily insert and remove the water purification cartridges 32, resulting in a highly convenient configuration.

[0098] [7. Regarding the sixth embodiment] Next, the sixth embodiment will be described using Figures 10A and 10B. As shown in Figures 10A and 10B, in the sixth embodiment, a plurality of water purification cartridges 32 are arranged, and each water purification cartridge 32 is inclined at approximately the same angle. The inclination direction may be downward toward the removal end face 45 of the water purification cartridge 32 (Figure 10A), or upward toward the removal end face 45 of the water purification cartridge 32 (Figure 10B).

[0099] Furthermore, this sixth embodiment is characterized by the protruding length of the removal-side end face 45 of the water purification cartridge 32. That is, the amount of protrusion of the water purification cartridge 32 in the insertion and removal direction is relatively larger for water purification cartridges located lower down, and they protrude forward.

[0100] Since the sixth embodiment is as described above, an operator replacing the water purification cartridge 32 can easily identify the type of water purification cartridge 32 from the end face 46 of each cartridge 32.

[0101] Here, as mentioned above, the feature of having different protruding lengths for each water purification cartridge is to allow the operator to distinguish between their types from their ends. Therefore, as long as the water purification cartridges 32 can be distinguished in this way, the protruding lengths can vary. However, it is desirable to make the difference in protruding lengths for each of the multiple water purification cartridges 32 approximately the same, as this results in a more aesthetically pleasing appearance from the side.

[0102] [8. Regarding the seventh implementation] Next, the seventh embodiment will be described. In the seventh embodiment, multiple water purification cartridges 32 are superimposed and aligned vertically. The heaviest of these water purification cartridges 32 is positioned at the bottom of the water purification cartridge section.

[0103] In this configuration, it is preferable that the water purification cartridges 32 other than the bottom one are arranged in such a way that they become relatively heavier as they are located lower down. However, the water purification cartridges 32 other than the bottom one do not have to be arranged in this way, and there is no problem with a configuration in which relatively heavy water purification cartridges 32 and relatively light water purification cartridges 32 are mixed together.

[0104] In this configuration, the heaviest water purification cartridge 32 is located at the bottom of the water purification cartridge section, allowing the water purifier with water purification cartridge 31 to be balanced and stable. Therefore, this configuration offers superior safety.

[0105] Furthermore, since the heaviest water filter cartridge 32 is located at the bottom, the worker does not need to hold the heavy water filter cartridge at a high position in an awkward position when replacing it. Therefore, it also offers convenience when replacing water filter cartridges.

[0106] [9. Regarding the eighth embodiment] Next, the eighth embodiment will be described. In the eighth embodiment, the water purification cartridge 32, which has the highest replacement frequency (shortest filter media lifespan), is positioned at the uppermost position of the water purification cartridge section of the water purification cartridge 31 with a water purification cartridge.

[0107] In this case, it is preferable to position the water purification cartridge 32, which has a relatively shorter lifespan filter material, higher up.

[0108] In this configuration, the water purification cartridges 32, which are replaced more frequently, are positioned higher up on the water purifier 31 with the water purification cartridges, making them easier to remove.

[0109] One specific example of such a water purification cartridge is a water purification cartridge 32 located at the bottom, which is replaced less frequently and can filter approximately 30,000 liters of water, with a lifespan of about 2.3 years. On the other hand, a water purification cartridge 32 that is replaced more frequently can filter approximately 8,000 liters of water, with a lifespan of about 1 year.

[0110] Furthermore, the arrangement of each water purification cartridge 32 in the vertical direction in this eighth embodiment may be any of the above-described configurations. That is, each water purification cartridge 32 may be arranged parallel to each other, or it may be inclined. Also, each water purification cartridge 32 may be inclined at a different angle.

[0111] [10. Regarding the Ninth Implementation] Next, the ninth embodiment will be described using Figure 11. As shown in Figure 11A, in the ninth embodiment, an inlet 42 for a drainage channel 41 is provided at a position below the connection side end face 50 of the water purification cartridge 32, which is near the mounting port 37 between the water purifier 40 and the water purification cartridge 32. This drainage channel 41 is a connecting member such as a pipe, and is arranged across the entire lower surface of each water purification cartridge 32.

[0112] One configuration of this piping channel is shown in Figures 11B and 11C. As shown in Figures 11B and 11C, this drainage channel 41 is in the form of a trough and is located below each water purification cartridge 32.

[0113] Furthermore, as shown in Figure 11C, the drainage channel 41, in one configuration, has a width sufficient to cover the width of the upper water purification cartridge 32 and encompasses almost the entire area below the water purification cartridge 32. In this configuration, the drainage channel 41 can receive leaked water from the start to the end of insertion and removal of the water purification cartridge 32.

[0114] Furthermore, in this configuration, when replacing each water purification cartridge 32, any water spilled from each cartridge 32 is discharged to the outside of the water purifier with water purification cartridges 31 via the drainage channel 41, so that water does not accumulate inside the water purifier with water purification cartridges 31. Therefore, it is superior in terms of hygiene.

[0115] As shown in Figures 11B and 11C, this drainage channel 41 is provided at the bottom of each water purification cartridge 32. Then, as shown in Figure 11, the drainage channels 41 from each water purification cartridge 32 merge via a guide section such as a pipe, and water is discharged to the outside from the water purifier 31 with water purification cartridges.

[0116] In one embodiment, the drainage channel 41 may be configured such that a pipe 38 is connected vertically downward from the confluence point of each water purification cartridge 32, and leaked water is discharged from directly below the water purifier with water purification cartridge 31. Alternatively, as shown in Figure 11A, the pipe 38 may be extended further in front of the water purifier from the bottom of the water purifier with water purification cartridge 31, and leaked water may be discharged from the outlet 44 on the front side of the water purifier (the side where the water purification cartridge is removed).

[0117] [11. Regarding the Tenth Embodiment] Next, the tenth embodiment will be described with reference to Figure 12. As shown in Figure 12A, in the tenth embodiment, a cover body 47 is provided on the insertion / removal surface 48 of the water purification cartridge 32 of the housing 60 of the water purifier 31 with a water purification cartridge. This cover body 47 has a configuration that allows it to change between an open state, which opens the insertion / removal surface 48 of the water purification cartridge 32 of the water purifier 31 and allows the water purification cartridge 32 to be inserted and removed, and a closed state, which closes the insertion / removal surface 48 of the water purification cartridge 32 and prevents the water purification cartridge 32 from being inserted and removed. This change in state can be achieved by a downward-opening structure.

[0118] Here, the pivot axis 49 of the downward-opening structure is located near the bottom of the cover body 47 in the closed state, as shown in Figure 12B. Therefore, the cover body 47 opens downwards when opening or closing.

[0119] Furthermore, when the cover is open, it is positioned below the removal trajectory of the water purification cartridge 32. In other words, in one embodiment, as shown in Figure 12A, the cover 47 is tilted approximately 90° toward the front from the insertion / removal surface 48, and is in the open state.

[0120] In this configuration, the cover body 47 can cover and protect the water purification cartridge when closed, and when open, it can function as a water tray to receive water that leaks out when the water purification cartridge is replaced.

[0121] Such a cover body 47 may be made of, for example, synthetic resin. Furthermore, a groove-like structure may be provided on the inner side of the cover body 47 facing the water purification cartridge 32, thereby providing a structure that guides water to the vicinity of areas where leaked water is expected to fall. Such a cover body 47 also has the function of pushing the water purification cartridge 32 towards the mounting opening 37 from the inside and securing it. This securing function of the water purification cartridge 32 by the cover body 47 is intended to prevent the water purification cartridge from coming loose and to keep it fixed in place when water pressure is generated due to water flow through it.

[0122] [12. Regarding the Eleventh Embodiment] Next, the eleventh embodiment will be described using Figures 13 and 14. As shown in Figures 13 and 14, in the eleventh embodiment, the first water purification cartridge 33, the second water purification cartridge 34, and the third water purification cartridge 35 are arranged to be tilted alternately in opposite directions, with a downward slope and an upward slope. As shown in Figures 13 and 14, the tilt direction of each water purification cartridge 32 does not matter as long as each water purification cartridge is tilted alternately; the tilt of the lowest water purification cartridge 32 can be either an upward or downward slope.

[0123] Below each water purification cartridge 32, a water receiving channel (hereinafter referred to as a water collection channel 53) is connected to and arranged along the inclined position of each water purification cartridge 32. This water collection channel 53 has a trough-like structure and has the function of receiving leaked water that leaks out when inserting or removing the water purification cartridge 32 during replacement.

[0124] Furthermore, this drainage channel 53 is pre-assembled and installed in the components that make up the water purification cartridge section, for connecting and fixing the water purification cartridge 32. Therefore, it is not pre-installed directly on each water purification cartridge 32.

[0125] Furthermore, a connecting passage 55 is provided near the downstream end 54 of each downstream water collection channel 53 (i.e., near the lowest end of each water purification cartridge) to allow leaked water to flow down to the next downstream water collection channel 53 further downstream. This connecting passage 55, like the downstream water collection channels 53, has a hollow tubular structure inside.

[0126] In this configuration, the water collected in each downstream drainage channel 53 moves through the connecting passage 55 to the lower downstream drainage channel 53, and finally the water is discharged to the outside from the lowest connecting passage 55 of the water purifier with a water purification cartridge 31.

[0127] Furthermore, as shown in Figure 13, the method of discharging leaked water at the lowest point may be to extend the connecting passage 55 to the front of the water purifier 31 with a water purification cartridge, provide an outlet 56 at the lower front of the water purifier 31 with a water purification cartridge, and collect the leaked water discharged from the outlet 56.

[0128] With this configuration, the amount of water leaked during water purification cartridge replacement can be minimized, and no leaked water remains inside the device. Therefore, it is a highly convenient configuration for the replacement worker and is also superior in terms of hygiene.

[0129] [13. Regarding the Twelfth Embodiment] Next, the twelfth embodiment will be described with reference to Figure 15. As shown in Figure 15, the twelfth embodiment is characterized by the operation of the water purification cartridge, and is equipped with a displacement mechanism that allows the orientation of each water purification cartridge 32 to be displaced between an inclined orientation and a horizontal orientation as an inclined orientation holding mechanism.

[0130] In one embodiment, this movable mechanism for displacement is driven starting from a pivot shaft 70 located near the center of each water purification cartridge 32.

[0131] In this state displacement, it is desirable that all water purification cartridges 32 in a single water purification cartridge-equipped water purifier 31 are connected by a connecting member, so that all water purification cartridges 32 move in a synchronized tilting motion. However, in this embodiment, the water purification cartridges 32 may not be connected, and each water purification cartridge 32 may move independently from a tilted state to a parallel state.

[0132] In this configuration, it is possible to quickly and easily switch between the inclined state during use and the horizontally parallel state during insertion and removal.

[0133] Furthermore, in this configuration, when the cartridge is partially removed, it becomes parallel or tilted in the opposite direction, which further reduces the risk of water draining to the outside from the vicinity of the mounting opening 37.

[0134] Furthermore, as one configuration of the water purification cartridge, as shown in Figure 15A, the vicinity of the center of the water purification cartridge is connected to the pivot shaft 70. A connecting member that can be easily rotated is provided as an intermediary at the connection point between the pivot shaft 70 and the water purification cartridge 32, making it easy to move the water purification cartridge in the inclined direction.

[0135] Since the water purifier 31 with a water purification cartridge and the water purification cartridge 32 are connected in this manner, the worker can easily tilt the water purification cartridge 32 by grasping the end of the uppermost water purification cartridge 32 and applying light force in the desired direction to tilt the entire water purification cartridge.

[0136] Another possible embodiment includes a displacement mechanism that allows the water purification cartridge 32 to be displaced between a downward inclined position and a horizontal position, and a position synchronization mechanism 71 that, when the position of one water purification cartridge 32 is displaced, displaces the other water purification cartridges 32 to the same position.

[0137] In this configuration, all water purification cartridges 32 can work together to switch between the tilted and horizontal positions simultaneously.

[0138] A specific embodiment of such a displacement mechanism and attitude synchronization mechanism will be described using Figure 15. As shown in Figure 15A, each water purification cartridge has a pivot shaft 70 near its center that functions as a displacement mechanism, and each water purification cartridge is connected to the pivot shaft 70.

[0139] Furthermore, each water purification cartridge 32 has a posture synchronization mechanism 71 connected to it near both ends.

[0140] Therefore, if the orientation of one water purification cartridge 32 changes due to the displacement mechanism, for example, the orientation synchronization mechanism 71 can cause all water purification cartridges 32 to tilt to approximately the same angle.

[0141] Here, the rotating shaft 70, which serves as the displacement mechanism, is pre-installed in the water purification cartridge section of the water purifier 31 with a water purification cartridge. Therefore, the water purification cartridge 32 is inserted and removed from the displacement mechanism and attitude synchronization mechanism 71, and the water purification cartridge 32 is replaced in this manner.

[0142] The twelfth embodiment is such that it offers excellent convenience when removing the water purification cartridge 32, etc.

[0143] Furthermore, as shown in Figure 15A, in one embodiment of this design, the water purification cartridge 32 can have its tilt angle adjusted from approximately -30° to approximately +30°. When the water purification cartridge is in normal use, this angle is approximately 30°, but in this case, a stopper material or the like is provided separately to fix the water purification cartridge at approximately 30° and hold it in that state.

[0144] Next, the method of inserting and removing the water purification cartridge in this embodiment will be described in detail. First, in the normal operating state of the water purifier, each water purification cartridge 32 is inclined with its rear facing downwards, as shown in Figure 15A.

[0145] Then, from this position, the water purification cartridge 32 is pulled out with its head pointing forward and upward. When the water purification cartridge 32 is pulled out to about half its length, the entire water purification cartridge tilts forward and downward due to its own weight and is held in a state that is approximately parallel to the horizontal plane as shown in Figure 15B.

[0146] Then, while holding the cartridge in a position approximately parallel to the horizontal plane, the remaining half of the water purification cartridge is pulled out, thus removing the water purification cartridge from the water purifier with the cartridge.

[0147] In this configuration, under normal use conditions, the front of the water filter cartridge is tilted upwards, making it easy to remove. Furthermore, when approximately half of the water filter cartridge is removed, it automatically tilts to a position nearly parallel to the horizontal plane, so when removing the cartridge, any leaked water remains inside the cartridge, making it less likely to spill.

[0148] Furthermore, the attitude synchronization mechanism that connects each water purification cartridge 32 may be configured such that a frame for fixing each water purification cartridge is pre-installed in the water purification cartridge section, and the frames for fixing each water purification cartridge are connected to each other with connecting members. In this configuration, even after each water purification cartridge has been removed, the remaining water purification cartridges will be held in place by the attitude synchronization mechanism.

[0149] Furthermore, the aforementioned embodiment may involve removing the water purification cartridge 32 and then tilting it forward, which is the opposite direction to the normal operating state, in order to discharge any leaked water that has accumulated inside.

[0150] Alternatively, each water purification cartridge 32 may be tilted forward beforehand, and after removing approximately half of the water purification cartridge 32 as described above, it may be made to a parallel state. In this configuration, leaked water does not accumulate near the mounting opening 37 of the water purification cartridge 32, but rather is quickly discharged along the inclination of the water purification cartridge frame that houses the water purification cartridge 32.

[0151] Furthermore, the pull tabs on the cartridges may be provided on the end face 46 of each cartridge. These pull tabs are normally stored parallel to the end face 46 and can be raised and used when needed.

[0152] The displacement mechanism and attitude synchronization mechanism described above are merely examples. Any configuration that allows the water purification cartridge to be easily held in the same orientation is acceptable.

[0153] [14. Regarding the Thirteenth Implementation] Next, the thirteenth embodiment will be described using Figure 16A. As shown in Figure 16A, in the thirteenth embodiment, the water purification cartridge 32 is inclined upward towards the rear of the water purifier with water purification cartridge 31. That is, in one water purification cartridge 32, the side to which the mounting opening 37 is attached is positioned as the upper part.

[0154] In this configuration, for example, when the water purifier 31 with a water purification cartridge is installed in an upper position such as an upper shelf above the sink 21, the water purification cartridge 32 can be easily replaced.

[0155] Furthermore, another embodiment of the thirteenth embodiment is shown in Figure 16B. As shown in Figure 16B, in order to make it easier to replace the water purification cartridges 32, the water purifier with water purification cartridges 31 may be configured such that the base portion 43, which houses the pump 88 and control components, is at the top, and each water purification cartridge 32 is arranged at the bottom of the base portion 43. In this configuration, since each water purification cartridge 32 is located at the bottom of the water purifier, it is possible to replace the water purification cartridges more easily in the water purifier with water purification cartridges 31 which is located at the top.

[0156] [15. Regarding the Fourteenth Implementation] Next, the fourteenth embodiment will be described using Figure 17. As shown in Figure 17, in the fourteenth embodiment, in addition to the configuration in which the water purification cartridges are tilted upward towards the rear, the amount of forward protrusion of each cartridge is made approximately as large as that of the upper cartridge 32.

[0157] In this configuration, all sides of each cartridge can be easily viewed from below. If, for example, tags such as stickers indicating the type of cartridge are attached to the side of each cartridge, it becomes even easier to identify the type of cartridge.

[0158] Furthermore, it is preferable for aesthetics to standardize the protrusion amount of each cartridge 32 among all cartridges.

[0159] [16. Regarding the fifteenth embodiment] Next, the fifteenth embodiment will be described using Figure 18. As shown in Figure 18, in the fifteenth embodiment, the height of the upper end of the lower cartridge is higher than the height of the lower end of the upper cartridge. In other words, each cartridge is arranged with a certain degree of steep incline.

[0160] Specifically, the height position A', which is the lower end of the first water purification cartridge 33, is lower than the height position B, which is the upper end of the second water purification cartridge 34. Also, the height position B', which is the lower end of the second water purification cartridge 34, is lower than the height position C, which is the upper end of the third water purification cartridge 35. In this way, for each cartridge 32, the upper end of the cartridge one level below is higher than the lower end of the cartridge above it.

[0161] With this configuration, the gaps between cartridges are reduced, and the overall height of the water purifier with cartridges can be kept down while still allowing for a steep incline in the cartridges. As a result, it has a compact structure and can be stored even in relatively narrow spaces.

[0162] In this fifteenth embodiment, the cartridge may be tilted upwards or downwards.

[0163] [18. Electrical configuration of a water purifier according to one embodiment of the present invention] Next, the electrical configuration of a water purifier according to one embodiment of the present invention will be described using Figures 19A and 19B. Figure 19A shows the electrical and waterway diagrams of the water purifier in standby mode, and Figure 19B shows the electrical and waterway diagrams of the water purifier when water is flowing.

[0164] First, we will describe the electrical system diagram and waterway system diagram during water flow. As shown in the electrical system diagram (dotted line) of Figure 19A, the water purifier according to one embodiment of the present invention has a control unit 80 as the center of the electrical system diagram.

[0165] The control unit 80 consists of a CPU, ROM, RAM, etc. The ROM stores programs necessary for the CPU's processing, and the RAM functions as a temporary storage area when executing those programs.

[0166] The control unit 80 is connected to the power adapter 81, display unit 82, WiFi (Wireless Fidelity, registered trademark) unit 83, solenoid valve A 84, solenoid valve B 85, ​​flow rate measuring unit 86, motor valve 87, pump 88, Hall sensor 89, faucet control unit 90, and RFID communication unit 91, with the control unit 80 responsible for control functions such as ON / OFF for each of these components.

[0167] Let's describe each of them. First, the power adapter 81 is a component that rectifies, transforms, and adjusts the current of power obtained from commercial power sources, etc., to convert the power into a state suitable for supply to the control unit 80 and each electrical component.

[0168] Next, the display unit 82 is connected to the RFID communication unit 91 and each cartridge, and is responsible for adjusting the ON / OFF display function of each cartridge. It also displays the flow rate of filtered water and the timing for cartridge replacement.

[0169] Furthermore, the RFID communication unit 91 is a component for contactless communication with RF tags pre-attached to each water purification cartridge. The control unit 50 of the water purifier A identifies the type of cartridge inserted into the water purification cartridge section via this RFID communication unit 91.

[0170] Furthermore, the WiFi unit 83 is a component that enables checking the operating status of the water purifier, ordering new cartridges, and updating the firmware of the water purifier 31 with a water purification cartridge via WiFi communication using predetermined software.

[0171] Furthermore, the solenoid valve A84 has a function to switch the flow of water into the water purification cartridge 32 ON / OFF in response to the supply of water from the outside into the water purification cartridge 32.

[0172] Furthermore, the solenoid valve B85 has a function to switch the discharge of filtered water generated from the water purification cartridge 32 ON / OFF.

[0173] Furthermore, the flow rate measuring unit 86 has the function of measuring the flow rate of filtered water generated and discharged from the water purification cartridge 32.

[0174] Furthermore, the motor valve 87 regulates the wastewater discharged from the third water purification cartridge 35, which is equipped with an RO filter.

[0175] Furthermore, the pump 88 is connected to the third water purification cartridge 35 and has the function of driving the movement of water within the water purification cartridge 32.

[0176] Furthermore, the Hall sensor 89 has a malfunction prevention function by detecting the energization of the electromagnetic magnet 92, which is responsible for the opening and closing function of the cover body 47.

[0177] Furthermore, the faucet control unit 90 has an ON / OFF switching function for the faucet, which controls the flow of filtered water generated after filtration to sinks and other subsequent processes.

[0178] Next, the configuration of the electrical circuit inside the water purification cartridge 32 will be described. As mentioned above, the control unit 80 is connected to the RFID communication unit 91 via the display unit 82. The RFID communication unit 91 is connected to each of the first water purification cartridge 33, the second water purification cartridge 34, and the third water purification cartridge 35, and has the function of switching the filtration function of each cartridge ON / OFF.

[0179] Next, the water channel system will be described using Figures 19A and 19B. As shown in Figures 19A and 19B, water is first supplied from the water inlet 100 from outside the water purification cartridge 32. After foreign matter in the water is removed via the strainer 101, the water flows through the solenoid valve A84 and then through the first water channel 102 into the first water purification cartridge 33.

[0180] Here, the inflow of water into the water purification process, such as the first water purification cartridge 33, can be adjusted by opening and closing the solenoid valve A84. In other words, the ON / OFF switch of this water purifier is performed by switching the opening and closing of this solenoid valve A84.

[0181] The first water purification cartridge 33 then passes through the second waterway 103, pump 88, third waterway 104, third water purification cartridge 35, fourth waterway 105, second water purification cartridge 34, fifth waterway 108, flow rate measuring unit 86, solenoid valve B85, and sixth waterway 109 before being discharged from the outlet 110 through the water purification cartridge 32 to the outside.

[0182] Here, the pump 88 has the function of pressurizing water and sending it to the third water purification cartridge 35. This is because sufficient water pressure is required for filtration in the third water purification cartridge 35.

[0183] Furthermore, a drainage channel 106 is provided from the third water purification cartridge 35. This drainage channel 106 branches off into a water channel that connects to the outlet 111 and a circulation channel 107 that connects to the first water channel 102.

[0184] In the waterway connected to the discharge port 111, a motor valve 87 is installed midway along the channel. This motor valve 87 has the function of adjusting the amount of water drained from the discharge port 111.

[0185] Furthermore, when water is flowing, the motor valve 87 operates, and the drainage from the third water purification cartridge 35 and the circulation path 107 that returns the drainage from the third water purification cartridge 35 back to the first water purification cartridge 33 function. The water taken into the first water channel 102 via this circulation path 107 and the water supplied from the water inlet 100 are mixed and filtered through the aforementioned water purification cartridges.

[0186] Furthermore, this drainage channel 106 may also be configured to discharge both the wastewater from the third water purification cartridge 35 and the wastewater generated near the insertion port 37 when inserting or removing the cartridge, which is discharged via the pipe 38 shown in Figure 11A.

[0187] The water channel that returns the wastewater from the third water purification cartridge 35 to the first water purification cartridge 33 via the circulation path 107 is installed with the aim of reducing wastewater volume and improving water utilization efficiency by circulating a portion of the wastewater from the third water purification cartridge 35 and re-incorporating it into the cartridge for reuse.

[0188] The filtered water discharged from the third softened water 18 to the outside of the water purification cartridge 32 is then used for drinking water, etc.

[0189] [15. Regarding an embodiment of a water purifier according to one embodiment of the present invention and related claims, etc.] Next, we will describe the relationship between the invention described in each claim of the present invention and each embodiment.

[0190] First, the invention described in claim 1 of the claims of the present invention corresponds to the invention described in the second embodiment.

[0191] Furthermore, the invention described in claim 2 of the claims of the present invention corresponds to the invention described in the third embodiment.

[0192] Furthermore, the invention described in claim 3 of the claims of the present invention corresponds to the invention described in the second embodiment.

[0193] Furthermore, the invention described in claim 4 of the claims of the present invention corresponds to the invention described in the second and third embodiments.

[0194] Furthermore, the invention described in claim 5 of the claims of the present invention corresponds to the invention described in the fourth and fifth embodiments.

[0195] Furthermore, the invention described in claim 6 of the claims of the present invention corresponds to the invention described in the fourth and fifth embodiments.

[0196] Furthermore, the invention described in claim 7 of the claims of the present invention corresponds to the invention described in the sixth embodiment.

[0197] Furthermore, the invention described in claim 8 of the claims of the present invention corresponds to the invention described in the fourteenth embodiment.

[0198] Furthermore, the invention described in claim 9 of the claims of the present invention corresponds to the invention described in the fifteenth embodiment.

[0199] Furthermore, the invention described in claim 10 of the claims of the present invention corresponds to the invention described in the seventh embodiment.

[0200] Furthermore, the invention described in claim 11 of the claims of the present invention corresponds to the invention described in the eighth embodiment.

[0201] Furthermore, the invention described in claim 12 of the claims of the present invention corresponds to the invention described in the ninth embodiment.

[0202] Furthermore, the invention described in claim 13 of the claims of the present invention corresponds to the invention described in the tenth embodiment.

[0203] Furthermore, the invention described in claim 14 of the claims of the present invention corresponds to the invention described in the eleventh embodiment.

[0204] Furthermore, the invention described in claim 15 of the claims of the present invention corresponds to the invention described in the twelfth embodiment.

[0205] Furthermore, the invention described in claim 16 of the claims of the present invention corresponds to the invention described in the twelfth embodiment.

[0206] Furthermore, the water purifier according to the present invention can contribute to Goal 3 (Good Health and Well-being) and Goal 6 (Clean Water and Sanitation) of the United Nations' Sustainable Development Goals (SDGs).

[0207] The embodiments described above are merely one aspect. Inventions that are considered to fall within the same technical scope, such as those with minor modifications, shall be deemed to fall within the same technical scope as the present invention. [Explanation of symbols]

[0208] 1 Apartment complex 2. Living space 3 Supply section 6 filters 7 Raw water 8 First filtered water 9 Piping 10 Pipe Space 11. First Water Treatment Department 12 Pre-filter 13 Water purifier 14 Second filtered water 15 First pipeline 16 Second pipe line 17 Water softener 18 Third Soft Water 19. Second Water Treatment Department 20 Water purifiers 22 Under-sink space 31 Water purifier with water filter cartridge 32 water filter cartridges 33 First Water Purification Cartridge 34. Second water filter cartridge 35 Third water purification cartridge 36 Inlet 37 mounting opening 38 pipes 39 Outlet 40 Water purifiers 41 Drainage channel 42 Inlet 43. Base 44 Outlet 45 Front end 46 End face 47 Cover body 48 Insertion / extraction surface 49. Rotary shaft 50 Connection side end face 53 Downstream collection channel 54 Downstream end 55 Communication path 56 Outlet 57 filter media 58 Waterways 59 mounting opening 70 rotational shafts 80 Control Unit 81 Power adapter 82 Display section 83 WiFi section 86 Flow measurement section 90 Faucet section 91 RFID section A Water purification system

Claims

1. A water purifier equipped with an inclined posture holding structure that holds a columnar water purification cartridge, which is attached and detached by insertion and removal in the axial direction, in a position with a predetermined inclination less than vertical to the horizontal while allowing water to pass through.

2. The water purifier according to claim 1, characterized in that the predetermined inclination is a downward slope in which the orientation of insertion of the water purification cartridge has a component that is vertically downward.

3. The water purifier according to claim 1, characterized in that the predetermined inclination is an upward inclination in which the direction in which the water purification cartridge is inserted has a component in the vertically upward direction.

4. The water purifier according to claim 1, wherein multiple water purification cartridges can be inserted, and the tilt posture holding structure holds at least some of the multiple water purification cartridges in a downward tilt posture or an upward tilt posture.

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

6. The water purifier according to claim 4, wherein the inclined posture holding structure holds the plurality of specific water purification cartridges in a state where they are superimposed in the vertical direction, and all of them are in a downward inclined posture or all of them are in an upward inclined posture, and the inclination angle of the specific water purification cartridges positioned relatively lower is greater than the inclination angle of the specific water purification cartridges positioned relatively higher.

7. The inclined posture holding structure holds the plurality of specific water purification cartridges in a vertically superimposed state, all in a downward inclined posture or all in an upward inclined posture, and is characterized in that the amount of protrusion of the removal-side end face in the removal direction when the relatively lower-positioned specific water purification cartridge is installed is greater than the amount of protrusion of the removal-side end face in the removal direction when the relatively upper-positioned specific water purification cartridge is installed.

8. The inclined posture holding structure holds the plurality of specific water purification cartridges in a vertically overlapping state, all in a downward inclined posture or all in an upward inclined posture, and is characterized in that the amount of protrusion of the removal-side end face in the removal direction when the relatively upper specific water purification cartridge is installed is greater than the amount of protrusion of the removal-side end face in the removal direction when the relatively lower specific water purification cartridge is installed.

9. The tilt posture holding structure holds the plurality of specific water purification cartridges in a vertically overlapping state, with each in either a downward or upward tilt posture, and when the specific water purification cartridge positioned relatively above is installed... The water purifier according to claim 4, characterized in that the lower vertical end position is held at a position higher than the upper vertical end position when the specific water purification cartridge, which is positioned relatively lower, is installed.

10. The water purifier according to claim 4, characterized in that the inclined posture holding structure holds the plurality of specific water purification cartridges in a vertically overlapping state, all in a downward inclined posture or all in an upward inclined posture, and the heaviest specific water purification cartridge is held in the lowest relative position.

11. The water purifier according to claim 4, wherein the tilt posture holding structure holds the plurality of specific water purification cartridges in a vertically overlapping state, all in a downward tilt posture or all in an upward tilt posture, and furthermore, the specific water purification cartridge that is replaced most frequently is held in the uppermost position relative to the others.

12. The water purifier according to claim 2, characterized in that the inlet of the drainage channel is positioned below the connection end face of the water purification cartridge.

13. The housing of the water purifier is provided with a downward-opening cover body that can be displaced between a closed state that covers the insertion / removal surface of the water purification cartridge of the housing and an open state that does not cover the insertion / removal surface and allows the water purification cartridge to be inserted and removed, The water purifier according to claim 2, characterized in that the cover body in the open state is positioned below the removal trajectory of the water purification cartridge and is configured to function as a water receiving tray.

14. The aforementioned tilt posture holding structure alternately holds the plurality of specific water purification cartridges in a downward tilt posture and an upward tilt posture while they are superimposed in the vertical direction. Below each specific water purification cartridge, there is a water collection channel that follows the inclined orientation of the cartridge. At the downstream end of each drainage channel, a connecting passage is provided to allow water to flow down to a further downstream drainage channel. The water purifier according to claim 4, characterized in that the connecting passage of the lowest-level flow-down collection channel is configured to allow water to flow down into a water receiving tray or drainage channel.

15. The water purifier according to claim 1, characterized in that the tilt posture holding structure includes a displacement mechanism that can displace the posture of the water purification cartridge between a downward tilt posture and a horizontal posture.

16. The water purifier according to claim 4, characterized in that the tilt posture holding structure comprises a displacement mechanism that can displace the posture of the specific water purification cartridge between a downward tilt posture and a horizontal posture, and a posture synchronization mechanism that, when the posture of one specific water purification cartridge is displaced, displaces the postures of other specific water purification cartridges to the same posture.

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