Faucet

Abstract

The present invention relates to a faucet. The present invention may comprise: a casing (20) that defines a first inflow channel (P1a) and a second inflow channel (P1b); and a fluid regulator (140) that defines a first mixing channel (142a) and a second mixing channel (142b). The fluid regulator (140) can control the amounts mixed of different fluids supplied from the first inflow channel (P1a) and the second inflow channel (P1b). A switching valve device (240) may be coupled to the fluid regulator (140). The switching valve device (240) can be arranged at a plurality of angular positions on the casing (20) with respect to a rotation center (C) formed along the direction of coupling with the fluid regulator (140). The switching valve device (240) can be arranged at different angular positions within the casing (20) to differently connect the flow path of the faucet. Accordingly, the faucet can be flexibly adapted to various installation environments by adjusting the installation angle position of the switching valve device (240).

Description

Susan

[0001] The present invention relates to a water supply.

[0002] A faucet is a device designed to supply water to a user; when a user operates the faucet, stored water or raw water supplied from an external source can be delivered to the user through the outlet. Such faucets can be used in bathrooms or kitchens.

[0003] The faucet can supply cold water and hot water from the raw water supplied from an external source to the user. The faucet can provide either cold water or hot water, or a mixed water mixture of cold water and hot water to the user. A knob is provided on the faucet for the use of the mixed water, and the user can adjust the temperature of the mixed water by rotating the knob.

[0004] These faucets can receive cold and hot water from supply pipes embedded in the wall. Typically, the cold water pipe is placed on the right and the hot water pipe on the left, but depending on the installation environment or piping conditions, the placement of the cold and hot water pipes may be reversed.

[0005] When a standard faucet is installed in an environment where the piping layout has been altered as described above, a problem may arise where the direction of knob rotation expected by the user does not match the actual method of hot and cold water supply. For example, while standard faucets are designed to supply hot water when the knob is rotated in a specific direction, in an environment where the cold and hot water pipes are installed in reverse positions, cold water is supplied in the same direction of rotation. This issue not only causes confusion for the user but also poses a potential risk of user safety accidents (such as burns).

[0006] Furthermore, redesigning faucets or manufacturing separate models to address these issues leads to increased manufacturing costs and complexity in inventory management. Therefore, there is a need for faucets that can flexibly adapt to various piping configurations while providing a consistent user experience.

[0007] U.S. Patent 4,493,343 (Prior Art 1) discloses a technology for changing the installation direction of a faucet. However, changing the installation direction of the faucet itself in this way alters the arrangement of components such as the water outlet, and Prior Art 1 has the problem of requiring many parts to change the installation direction. U.S. Patent 3,674,048 (Prior Art 2) presents a technology that corresponds to a reversed flow path by rotating a bushing member placed inside the faucet. However, Prior Art 2 has the disadvantage that smooth water supply is difficult due to the narrow internal flow path, and the structure is complex because parts other than the bushing member rotate together.

[0008] Chinese published patent CN117108786A (Prior Art 3) and Chinese registered utility model CN221121021U (Prior Art 4) disclose a technology that responds to a changed flow path using a reversing valve. However, Prior Art 3 and Prior Art 4 include two reversing valves, and the reversing valves themselves are composed of multiple parts, so there is a problem with a large number of parts and a complex structure.

[0009] The present invention is intended to solve the problems of the prior art as described above, and the objective of the present invention is to flexibly respond to various piping configurations by utilizing a switching valve device for water supply.

[0010] Another objective of the present invention is to enable the direction of delivery of cold / hot water to be changed simply by changing the installation angle of a single component (switching valve device).

[0011] Another objective of the present invention is to reduce the size of the faucet by axially aligning the switching valve device with the fluid regulator and the control knob.

[0012] Another objective of the present invention is for the switching valve device to form a switching path connecting the inlet path and the fluid regulator, thereby enabling a smooth flow of fluid.

[0013] According to the features of the present invention for achieving the above-mentioned purpose, the present invention may include a casing defining a first inlet path and a second inlet path, and a fluid regulator defining a first mixing path and a second mixing path.

[0014] The fluid regulator can regulate the mixing amount of different fluids supplied from the first inlet path and the second inlet path. A switching valve device may be coupled to the fluid regulator.

[0015] The switching valve device can be positioned in the casing at a plurality of angular positions based on a rotation center formed along the direction of coupling with the fluid regulator.

[0016] The switching valve device described above is positioned in the casing at different angular positions, allowing the flow paths of the faucet to be connected differently. In this way, by adjusting the installation angle of the switching valve device, the faucet can be flexibly adapted to various installation environments.

[0017] At this time, the switching valve device may be positioned in the casing at a first angle position and may have a first connection state in which the first inlet passage and the second inlet passage are connected to the first mixing passage and the second mixing passage, respectively.

[0018] The switching valve device is positioned in the casing at a second angle position rotated from the first angle position and may have a second connection state that connects the first inlet passage and the second inlet passage to the second mixing passage and the first mixing passage, respectively.

[0019] Accordingly, even if a faucet is installed in a location where the cold and hot water supply pipes are reversed, the rotation direction of the temperature control lever remains the same as the existing direction, thereby preventing user confusion and user safety accidents (risk of burns).

[0020] In addition, the switching valve device may include a first switching path connecting the first inlet path or the second inlet path and the first mixing path, and a second switching path connecting the second inlet path or the first inlet path and the second mixing path. In the first connection state and the second connection state, the positions of the first switching path and the second switching path may be reversed. In this way, the inlet paths of cold water and hot water supplied from two pipes can be changed using only a single component (switching valve device).

[0021] In addition, the switching valve device may include a first switching path in which the outlet is connected to the first mixing path in the first connection state and the second connection state, and a second switching path in which the outlet is connected to the second mixing path in the first connection state and the second connection state. In this case, to switch the paths, only the installation angle of the switching valve device needs to be changed. Since changing the installation angle of the switching valve device can be done very simply, the convenience of maintenance and repair of the faucet can also be improved.

[0022] In addition, the switching valve device may include a first switching path in which both ends are connected to the first inlet path and the first mixing path, respectively, in the first connection state, and both ends are connected to the second inlet path and the first mixing path, respectively, in the second connection state. The switching valve device may further include a second switching path in which both ends are connected to the second inlet path and the second mixing path, respectively, in the first connection state, and both ends are connected to the first inlet path and the second mixing path, respectively, in the second connection state.

[0023] Additionally, a control chamber may be formed along the axial direction at the center of the switching valve device. The fluid regulator is positioned in the control chamber, so that the switching valve device and the fluid regulator can be concentric with each other. When the parts are aligned to be concentric in this way, pressure loss within the fluid path is reduced, fluid flow becomes smooth, and turbulence and flow resistance can be minimized.

[0024] In addition, an inner tapered portion may protrude radially inwardly from the control chamber. The inner tapered portion may surround the first mixing channel of the fluid regulator. An outlet of the first switching channel facing the first mixing channel may be opened in the inner tapered portion.

[0025] Additionally, it may further include a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered. The discharge flow path, the center of the fluid regulator, and the rotational center of the switching valve device may be aligned to be concentric with each other. When components forming the flow paths, such as the switching valve device, are aligned axially in this manner, the overall size of the faucet can be reduced, thereby improving space efficiency.

[0026] And, the inlet of the first switching channel connected to the first inlet channel or the second inlet channel may be opened in the axial direction. The outlet of the first switching channel connected to the first mixing channel may be opened in a direction different from the axial direction.

[0027] Additionally, it may further include a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered. The second switching flow path may be defined by the switching valve device, the flow guide unit, and the fluid regulator.

[0028] Additionally, the switching valve device may include a first switching path and a second switching path whose positions are reversed in the first connection state and the second connection state. One end of the first switching path may be formed at a position protruding further with respect to the axial direction than one end of the second switching path. The other end of the first switching path may be formed at a position protruding further with respect to the axial direction than the other end of the second switching path.

[0029] Additionally, the switching valve device may include a first switching path and a second switching path connected in the axial direction to the first inlet path and the second inlet path. The first switching path and the second switching path may be connected to the first mixing path and the second mixing path in a direction different from the axial direction.

[0030] And, the inlet of the first mixing channel may be formed along the first outer surface of the fluid regulator, and the inlet of the second mixing channel may be formed along the second outer surface of the fluid regulator.

[0031] Additionally, the switching valve device may include a first switching path, one end of which is connected to the first inlet path or the second inlet path, and the other end of which is connected to the first outer surface. The switching valve device may include a second switching path, one end of which is connected to the second inlet path or the first inlet path, and the other end of which is connected to the second outer surface.

[0032] In addition, the first outer surface and the second outer surface may be spaced apart from each other along the axial direction of the fluid regulator.

[0033] In addition, the other end of the first switching path may extend along the circumferential direction of the switching valve device.

[0034] In addition, the second switching path may be formed in a space where the switching valve device and the fluid regulator are spaced apart from each other.

[0035] Additionally, it may further include a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered. The switching valve device may be coupled to the flow guide unit.

[0036] In addition, the Euro guide unit may be provided with a regulator mounting portion protruding in the axial direction. The switching valve device and the fluid regulator may be fixed to the regulator mounting portion.

[0037] In addition, the switching valve device can define a switching path connected to the fluid regulator together with the fluid guide unit.

[0038] In addition, the switching valve device may be provided with a valve coupling part coupled to the Euro guide unit. The valve coupling part may have a left-right symmetrical structure or an up-down symmetrical structure with respect to a reference line extended in a direction orthogonal to the axial direction.

[0039] Additionally, the valve connecting portion may be provided around the edge of the switching valve device. An even number of connecting members may be assembled in symmetrical positions on the valve connecting portion.

[0040] Additionally, the switching valve device may include a valve body formed in the center, wherein a control chamber into which the fluid regulator is inserted is formed. The valve body is provided with a first switching path, and the first switching path may be connected to the first inlet path or the second inlet path. The valve body is provided with a second switching path, and the second switching path may be connected to the second inlet path or the first inlet path. The first switching path and the second switching path may be arranged on opposite sides of the control chamber.

[0041] In addition, when the fluid regulator is inserted into the control chamber, the first switching path and the second switching path can be connected to the first mixing path and the second mixing path of the fluid regulator.

[0042] Additionally, the valve body may include the first valve body and a second valve body spaced apart from the first valve body in the axial direction. A connecting channel connecting the other end of the first switching path and the outer surface of the fluid regulator may be opened between the first valve body and the second valve body.

[0043] Additionally, it may further include a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered. The discharge flow path may be aligned with the control chamber in the axial direction.

[0044] Additionally, an axial control chamber is formed at the center of the switching valve device, and the fluid regulator may be disposed in the control chamber. The switching valve device and the fluid regulator may be assembled together by a regulator fastener. The switching valve device and the fluid regulator may rotate together to switch from the first connection state to the second connection state.

[0045] Additionally, the switching valve device may be provided with a plurality of switching passages having different diameters. The plurality of switching passages may be arranged to have different phases along the circumferential direction with respect to the center of the switching valve device. In the first connection state, any one of the plurality of switching passages may be connected to the first inlet passage. In the second connection state, another of the plurality of switching passages may be connected to the first inlet passage.

[0046] In addition, the switching valve device may be rotated by an angle displacement set at the first angle position to have the second angle position. The angle displacement may be 90 degrees or 180 degrees.

[0047] Additionally, the switching valve device may be connected to the inlet flow path at a first angle position and have a first connection state that guides cold water and hot water to a first transmission path and a second transmission path, respectively. The switching valve device may be connected to the inlet flow path at a second angle position different from the first angle position and have a second connection state that guides cold water and hot water to a second transmission path and a first transmission path, respectively.

[0048] The faucet according to the present invention, as examined above, has the following effects.

[0049] The faucet of the present invention is equipped with a switching valve device, and the flow path inside the faucet can be changed according to the angular position of the switching valve device. Due to this structure, the faucet can be flexibly adapted to various installation environments by adjusting the installation angle of the switching valve device. For example, even if the supply pipes for cold and hot water are installed in reverse, the faucet can be used as is, thereby improving the installation flexibility and compatibility of the faucet. This increases convenience during the installation process and minimizes compatibility issues with existing piping structures.

[0050] In particular, even if a faucet is installed in a location where the cold and hot water supply pipes are reversed, the rotation direction of the temperature control lever remains the same as the existing direction, so user confusion can be prevented and user safety accidents (risk of burns) can be prevented.

[0051] Furthermore, the faucet of the present invention can switch the inflow paths of cold and hot water supplied from two pipes using only a single component (switching valve device). Therefore, even if a function to switch the flow path is added, the increase in the number of parts can be minimized, and the internal structure of the faucet can be kept simple.

[0052] In addition, in the faucet of the present invention, only the installation angle of the switching valve device needs to be changed to switch the inflow paths of the two supply pipes. Since changing the installation angle of the switching valve device can be done very simply, the convenience of maintenance and repair of the faucet can also be improved.

[0053] Furthermore, in the present invention, the switching valve device can be axially aligned with the fluid regulator (temperature regulator) and the flow path guide unit. When components forming the flow path, such as the switching valve device, are axially aligned in this way, the overall size of the faucet can be reduced, thereby improving space efficiency.

[0054] Furthermore, in the present invention, since components forming the fluid path, such as switching valve devices, are aligned in the axial direction, abrupt changes in direction do not occur in the fluid flow path. Accordingly, pressure loss within the fluid path is reduced, fluid flow becomes smoother, and turbulence and flow resistance are minimized. In addition, since a complex fluid path design is not required, the manufacturing process is simplified, and the durability of the components is improved.

[0055] Furthermore, in the present invention, the switching valve device has a symmetrical structure, allowing the flow path to be changed simply by rotating the switching valve device. Accordingly, existing components such as fluid regulators (temperature controllers) can be utilized as they are without the need to separately replace or add them, thereby enabling the convenient implementation of flow path changes while maintaining compatibility with existing products. Additionally, due to this symmetrical structure, component design is simplified, facilitating the manufacturing process, and making component replacement and management easier during maintenance.

[0056] In addition, since the switching valve device in the present invention defines the flow path together with a flow path guide unit, it has the effect of utilizing a wide space as a flow path instead of using a traditional tube-shaped flow path. This structure increases the degree of freedom in flow path design, provides greater flexibility in installation and space utilization, and can induce efficient fluid flow. Furthermore, turbulence and vibration generated as fluid flows through the wide flow path are reduced, thereby reducing noise generated during faucet use.

[0057] Furthermore, in the present invention, since the switching valve device is mounted on the flow guide unit together with the fluid regulator (temperature controller), it can serve as a mounting bracket for mounting the fluid regulator (temperature controller) to the faucet. As a result, the installation of the fluid regulator (temperature controller) becomes easier, and the assembly process of the faucet system is simplified. Additionally, the number of mounting parts is reduced, which leads to a reduction in manufacturing costs. Moreover, since the switching valve device directly determines the position of the fluid regulator, the alignment between the two parts becomes more accurate, which can improve the performance and reliability of the faucet.

[0058] In addition, in the present invention, the switching valve device can be installed along the axial direction at the front together with a fluid regulator (temperature regulator). As a result, accessibility to the switching valve device is improved, making maintenance of the faucet easier and increasing efficiency during repairs or inspections.

[0059] Furthermore, according to the present invention, the path transmitted to the fluid regulator remains unchanged regardless of the installation angle position of the switching valve device, and only the path connected to the inlet path (path guide unit) can be changed. Accordingly, since only the fluid flow path can be changed without replacing or additionally adjusting the fluid regulator, various path changes are possible without structural changes to the fluid regulator, and efficiency can be increased during installation and maintenance.

[0060] FIG. 1 is an exemplary diagram showing a shower head connected to an embodiment of a faucet according to the present invention.

[0061] FIG. 2 is a side view showing an embodiment of the faucet according to the present invention installed on a wall.

[0062] FIG. 3 is a perspective view showing an embodiment of a water tap according to the present invention.

[0063] FIG. 4 is an exploded perspective view showing the parts constituting an embodiment of a water tap according to the present invention.

[0064] FIG. 5 is a perspective view showing the parts constituting an embodiment of a water tap according to the present invention disassembled and viewed from an angle different from FIG. 4.

[0065] FIG. 6 is a perspective view showing parts disposed inside a casing constituting an embodiment of a water tap according to the present invention.

[0066] FIG. 7 is an exploded perspective view showing the flow guide unit and the remaining parts among the parts disposed inside the casing constituting an embodiment of the water supply according to the present invention.

[0067] FIG. 8 is a front view showing components disposed inside a casing constituting an embodiment of a water tap according to the present invention.

[0068] FIG. 9 is a plan view showing the remaining parts with the casing omitted in one embodiment of the water supply according to the present invention.

[0069] FIG. 10 is a bottom view showing the remaining parts with the casing omitted in one embodiment of the faucet according to the present invention.

[0070] FIG. 11 is an exploded perspective view of a Euro guide unit constituting an embodiment of the present invention.

[0071] FIG. 12 is a perspective view showing a disassembled Euro guide unit constituting an embodiment of the present invention, viewed from an angle different from FIG. 11.

[0072] FIG. 13 is a perspective view of a Euro guide unit constituting an embodiment of the present invention, disassembled and shown at an angle different from FIG. 11 and FIG. 12.

[0073] FIG. 14 is an enlarged cross-sectional view showing the cross-sectional structure of a Euro guide unit constituting an embodiment of the present invention.

[0074] FIG. 15 is a front view showing the flow of mixed water along a flow path provided in a first flow path body of a flow path guide unit constituting an embodiment of the present invention.

[0075] FIG. 16 is a front view showing cold water flowing along a flow path provided in a first flow path body of a flow path guide unit constituting an embodiment of the present invention.

[0076] FIG. 17 is a front view showing hot water flowing along a flow path provided in a first flow path body of a flow path guide unit constituting an embodiment of the present invention.

[0077] FIG. 18 is a cross-sectional view along the line XVIII-XVIII' of FIG. 6.

[0078] FIG. 19 is a cross-sectional view along the line XIX-XIX' of FIG. 3.

[0079] FIG. 20 is a cross-sectional view showing a switching valve device constituting an embodiment of the present invention mounted after being rotated 180 degrees from the mounting state of FIG. 19.

[0080] FIG. 21 is a perspective view showing a fluid regulator and a switching valve device constituting an embodiment of the present invention coupled to a flow guide unit.

[0081] FIG. 22 is a perspective view showing a fluid regulator and a switching valve device constituting an embodiment of the present invention separated from a flow guide unit.

[0082] FIG. 23 is an exploded perspective view of a fluid regulator and a switching valve device constituting an embodiment of the present invention.

[0083] FIG. 24 is a disassembled cross-sectional view of a fluid regulator and a switching valve device constituting an embodiment of the present invention.

[0084] FIG. 25 is a perspective view showing, at a different angle from FIG. 22, the state in which a fluid regulator and a switching valve device constituting an embodiment of the present invention are separated from a flow path guide unit.

[0085] FIG. 26 is a perspective view showing a fluid regulator and a switching valve device constituting an embodiment of the present invention in a rotated state from the state of FIG. 22.

[0086] FIG. 27 is a perspective view showing the structure of a fluid regulator and a switching valve device constituting an embodiment of the present invention.

[0087] FIG. 28 is a cross-sectional view showing the structure of a fluid regulator and a switching valve device constituting an embodiment of the present invention.

[0088] FIG. 29 is a perspective view showing a second embodiment of a water supply according to the present invention.

[0089] FIG. 30 is a perspective view showing a third embodiment of a water supply according to the present invention.

[0090] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted.

[0091] The present invention relates to a faucet (10). The faucet (10) of the present invention can provide raw water supplied from an external water source by treating it in various ways. The faucet (10) may include faucets used in bathrooms, such as shower faucets, and faucets used in kitchens, such as sink faucets. Additionally, the faucet (10) may be used outdoors in addition to indoors. The faucet (10) may also be applied to home appliances that supply water, such as water purifiers.

[0092] Here, raw water is water supplied from the outside and may be tap water. More specifically, the raw water may include cold water and hot water. The cold water is raw water in an unheated state, and the hot water is raw water supplied after being heated through a boiler, etc. For reference, in the following description, raw water refers to cold water and hot water introduced from the outside, mixed water refers to water in which cold water and hot water are mixed by a temperature controller (140), controlled water refers to water whose flow rate is controlled by a flow rate controller (150), and purified water refers to water from which impurities have been filtered by a filter (160). The temperature controller (140) and the flow rate controller (150) can be viewed as a fluid controller (140). In the following description, the temperature controller (140) will be described as an example of the fluid controller (140).

[0093] The faucet (10) of the present invention may provide functions such as mixing cold water and hot water, purifying water, supplying power through a generator (170), transmitting information through a display (not shown), receiving / sending data through a communication means (not shown), automatic control through a control device, or dispensing water through a plurality of outlets. The communication means may include one or more of a Bluetooth communication module, a WiFi communication module, a Zigbee communication module, and an NFC communication module. The communication means may receive power through the generator (170).

[0094] The above fluid regulator (140) can adjust the mixing ratio of cold water and hot water, and the user can control the fluid regulator (140) by turning the control knob (300). In this embodiment, the control knob (300) is configured to rotate within a specific angle range. For example, the rotation range of the control knob (300) may be limited so that water at a temperature higher than the set temperature is not supplied. After changing the axial position of the control knob (300) by pushing or pulling the control knob (300), the user can turn the control knob (300) again to rotate the control knob (300) to an angle greater than the limited rotation range.

[0095] For reference, in FIG. 1, F represents the front of the water tap (10) and R represents the rear of the water tap (10). Here, the front of the water tap (10) refers to the front of the water tap (10) far from the installation surface (W, see FIG. 2), and the rear of the water tap (10) refers to the side toward the installation surface (W).

[0096] Referring to FIG. 1, the above faucet (10) is shown being used as a bathroom faucet. In this embodiment, the above faucet (10) may include a plurality of outlets (OH1, OH2). The above faucet (10) may include a first water outlet pipe (1) and a rainfall shower head (2) connected to the first water outlet pipe (1). The above shower may include a handheld shower head (4) connected to the second water outlet pipe (3). As another example, either the rainfall shower head (2) or the handheld shower head (4) may be omitted.

[0097] The above faucet (10) may be provided with a first outlet section (OH1) for discharging water downward from the faucet (10). When water is discharged downward from the faucet (10) through the first outlet section (OH1), the user can fill a bathtub (not shown) located at the bottom of the faucet (10) with water. As shown in FIG. 2, the above faucet (10) may be provided with a second outlet section (OH2) for discharging water to the rainfall shower head (2) or the hand shower head (4). The first discharge pipe (1) or the second discharge pipe (3) may be connected to the second outlet section (OH2). The user can discharge water to the first outlet section (OH1) or the second outlet section (OH2) by operating the water discharge selector (190) described below.

[0098] FIG. 1 illustrates a first control knob (300) of a fluid regulator (140) for controlling the temperature of water. When the first control knob (300) is rotated, the fluid regulator (140) operates to determine the mixing ratio of hot and cold water, or to discharge hot or cold water without mixing. The faucet (10) may further include a second control knob (400) in addition to the first control knob (300). The second control knob (400) is for operating a flow rate regulator (150) to control the flow rate of the discharged water. When the second control knob (400) is rotated, the discharged flow rate can be controlled.

[0099] For reference, the first adjustment knob (300) and the second adjustment knob (400) can be operated in the same way. Below, a detailed description of the second adjustment knob (400) will be omitted, and the description will be based on the first adjustment knob (300). For convenience of explanation, the first adjustment knob (300) will be referred to as the adjustment knob below.

[0100] In addition to the above-mentioned control knob (300), the faucet (10) may be equipped with a water outlet selector (190). The water outlet selector (190) may allow the user to select which of the plurality of outlet sections (OH1, OH2) water will be discharged. In this embodiment, the water outlet selector (190) may have a first selection position that is pressed and a second selection position that is protruded in the opposite direction. For example, when the water outlet selector (190) is operated to the first selection position, water may be discharged through the first outlet section (OH1), and when operated to the second selection position, water may be discharged through the second outlet section (OH2). As another example, the water outlet selector (190) may operate in the opposite way. As yet another example, the outlet section (OH1, OH2) through which water is discharged may be selected by rotating the water outlet selector (190) rather than by pressing.

[0101] The above-mentioned water outlet selector (190) can be positioned between the two control knobs (300, 400). The two control knobs (300, 400) can be positioned at each end of the front of the faucet (10). In this way, the faucet (10) can provide a unified aesthetic to the user through a symmetrical structure.

[0102] Referring to FIG. 2, the above-mentioned faucet (10) is shown installed on a wall surface, which is the installation surface (W). As such, the rear surface of the above-mentioned faucet (10) faces the installation surface (W), and the above-mentioned faucet (10) can protrude from the installation surface (W). The above-mentioned faucet (10) can be fixed to the installation surface (W) through a wall-mount installation adapter (7). Accordingly, a large load due to the weight of the above-mentioned faucet (10) can be concentrated on the installation adapter (7). In this embodiment, as described below, the load applied to the installation adapter (7) can be reduced through the structure of the above-mentioned Euro guide unit (100), the arrangement of its parts, and the reinforcing plate (130). As another example, the above-mentioned faucet (10) can be stored in a storage compartment recessed in the wall. As yet another example, the lower part of the above-mentioned faucet (10) can be supported through an installation adapter (7) connected to the lower part of the above-mentioned faucet (10).

[0103] A pair of installation adapters (7) are provided on the above-mentioned installation surface (W), and the pair of installation adapters (7) can be connected to a pair of raw water channels (not shown) embedded in the above-mentioned installation surface (W). Cold water and hot water can be supplied to the above-mentioned faucet (10) through the above-mentioned raw water channels. Generally, cold water is supplied through the raw water channel located on the right, and hot water is supplied through the raw water channel located on the left. However, these cold water supply channels and hot water supply channels may be positioned in reverse. In this case, when the user rotates the above-mentioned control knob (300), water of the opposite temperature to the user's intention is supplied, causing confusion to the user. Below, we will focus on a structure that ensures the supply of cold water and hot water is carried out normally through the switching valve device (240) even when the raw water channels are positioned in reverse.

[0104] As shown in FIGS. 1 and 2, the lower part of the above-mentioned faucet (10) may have outlet sections (OH1, OH2) and a part of the filter (160) described later exposed. The user may grasp the exposed part of the filter (160) and detach and replace the filter section (163, shown in FIG. 6) constituting the filter (160). In this embodiment, the filter section (163) may be mounted / detachable in the vertical direction, and this structure will be explained again below.

[0105] Referring to FIG. 3, the handle (167) of the filter (160) described above may be exposed at the bottom of the faucet (10). The handle (167) may protrude downward from the filter (160). In this embodiment, the filter (160) may be attached to the faucet (10) by a screw fastening method. Thus, the user can rotate the handle (167) to detach the filter part (163) from the faucet (10) or attach it to the faucet (10). An additional mounting part (167a, shown in FIG. 10) may be formed inside the handle (167) to provide an additional filter (160), such as an antibacterial filter (160).

[0106] FIGS. 4 and FIGS. 5 illustrate the disassembled parts constituting the above-mentioned faucet (10). As can be seen here, the exterior and frame of the above-mentioned faucet (10) can be formed by a casing (20). The casing (20) may have a shape that is longer in the left-right direction than in the front-rear direction. Both sides of the casing (20) may have a curved shape. As another example, the casing (20) may be made in an overall angular shape without a curved structure.

[0107] The above casing (20) may have an installation space (21) formed inside. The installation space (21) is open in the front-rear direction, and an inner housing (30) may be placed in the installation space (21). The inner housing (30) may form the frame of the faucet (10) together with the casing (20). As another example, the inner housing (30) may be omitted or may be made integrally with the casing (20).

[0108] A discharge hole (25) may be opened in the casing (20). The discharge hole (25) may be formed by penetrating the bottom surface of the casing (20). The first outlet section (OH1) is connected to the water discharge selector (190), and when the water discharge selector (190) is placed in the installation space (21) of the casing (20), the first outlet section (OH1) may protrude downward through the discharge hole (25).

[0109] A filter hole (26) may be opened in the casing (20). The filter hole (26) may be spaced apart from the discharge hole (25) and may be formed by penetrating the bottom surface of the casing (20). In this embodiment, the filter (160) is assembled / disassembled in the vertical direction, and the filter (160) may be replaced through the filter hole (26). The handle (167) of the filter (160) may protrude downward through the filter hole (26).

[0110] The inner housing (30) may be placed inside the casing (20). The inner housing (30) shields the front of the casing (20), and one or more components constituting a water tap (10) may be mounted in the inner housing (30). The housing body (31) forming the frame of the inner housing (30) may be injection molded and may have a more complex shape than the casing (20).

[0111] As shown in FIG. 4, the housing body (31) constituting the inner housing (30) may be provided with a housing fastening part (32). The housing fastening part (32) may be combined with a Euro guide unit (100) to be described later, so that the inner housing (30) and the Euro guide unit (100) can be assembled together. Reference numeral 31a is an internal space defined by the housing body (31), where parts can be stored.

[0112] Referring to FIG. 5, the inner housing (30) may be provided with a selector mounting portion (34). The water outlet selector (190) is disposed in the selector mounting portion (34). The water outlet selector (190) is mounted on the selector mounting portion (34), and a part of the water outlet selector (190) protrudes forward from the selector mounting portion (34). Reference numeral 35 indicates a water outlet connection hole connected to a water outlet hole (25) formed on the bottom surface of the inner housing (30).

[0113] A filter connection hole (36) for replacing the filter (160) may be formed in the bottom portion of the inner housing (30). The filter connection hole (36) is connected to the filter hole (26) of the casing (20). The filter (160) that has passed through the filter connection hole (36) and the filter hole (26) may be placed inside the filter shell (39) provided in the inner housing (30). This structure will be described again below.

[0114] The inner housing (30) may be provided with a temperature control mounting part (37). The temperature control mounting part (37) supports the fluid regulator (140) so that the fluid regulator (140) can be stably fixed in the installation space (21). The temperature control mounting part (37) may extend rearward from the inner housing (30) to support the surface of the fluid regulator (140). Referring to FIG. 19, the temperature control mounting part (37) may support the surface of the fluid regulator (140) so that the fluid regulator (140) does not move in the forward and backward directions.

[0115] Referring again to FIG. 5, the inner housing (30) may be provided with a filter shell (39). A filter (160) may be housed inside the filter shell (39). The filter shell (39) has a cylindrical shape corresponding to the filter (160), and the filter connection hole (36) is open at the bottom of the filter shell (39), so that the filter (160) can be attached to the filter shell (39) in an up-and-down direction.

[0116] The filter shell (39) may be provided with a filter inlet (39a) and a filter outlet (39b). The filter inlet (39a) and the filter outlet (39b) are connected to a flow guide unit (100) to be described below. The filter inlet (39a) receives raw water from the flow guide unit (100), and the filter outlet (39b) can supply purified water purified by the filter (160) back to the flow guide unit (100). To this end, the filter inlet (39a) and the filter outlet (39b) are each connected to a filter connector (FH) of the flow guide unit (100). This structure will be described again below.

[0117] As another example, the filter shell (39) may be configured separately from the inner housing (30). The filter shell (39) may form the housing of the filter (160) and may be installed together with the filter (160) in the installation space (21) or separated.

[0118] As shown in FIG. 5, the inner housing (30) may be provided with one or more spacer bars (SB). The spacer bars (SB) protrude from the front to the rear of the inner housing (30). The spacer bars (SB) support a plurality of components placed in the installation space (21), such as a generator (170), a fluid regulator (140), a flow regulator (150), etc., which will be described later. The plurality of components may be supported by the spacer bars (SB) toward the rear cover (50).

[0119] A front plate (40) may be disposed on the front of the inner housing (30). The front plate (40) constitutes the front of the inner housing (30). The front plate (40) may be coupled to the inner housing (30) or formed integrally with the inner housing (30). The front plate (40) may be made of a transparent or translucent material so as to project information displayed on a display (not shown) disposed inside the inner housing (30) forward.

[0120] Referring to FIG. 4, a pair of knob mounting holes (42, 43) are formed in the front plate (40). A pair of control knobs (300, 400) can be placed in each of the knob mounting holes (42, 43). Through the knob mounting holes (42, 43), the control knobs (300, 400) and the fluid regulator (140) or the flow rate regulator (150) can be connected to each other. Reference numeral 44 indicates a button mounting hole for mounting the water outlet selector (190).

[0121] A rotation limiting part (47) may be provided at the edge of the knob mounting hole (42, 43). The rotation limiting part (47) limits the rotation of the adjustment knob (300). More precisely, the rotation limiting part (47) limits the rotation range of the adjustment knob (300) so that the adjustment knob (300) rotates within a certain angle range. The rotation limiting part (47) may protrude in the axial direction of the adjustment knob (300) and may selectively interfere with the adjustment knob (300).

[0122] Referring to FIG. 19, the rotation limiting part (47) can be positioned closer to the rotation center (C, not shown in FIG. 19) of the control knob (300) than to the edge of the control knob (300) with respect to the radial direction. In this way, the rotation limiting part (47) is covered by the control knob (300) and is not exposed to the outside, and the aesthetic appeal of the faucet (10) can be avoided due to the rotation limiting part (47).

[0123] The rotation limiting part (47) may be provided at a position radially offset from the edge of the knob holder (360) to be described later. If the rotation limiting part (47) is radially offset from the edge of the knob holder (360) to be described later, it is possible to prevent the rotation of the knob holder (360) from being restricted by the rotation limiting part (47). The specific structure of such a rotation limiting part (47) will be explained again below together with the adjustment knob (300).

[0124] Referring again to FIG. 4, a rear cover (50) can be attached to the casing (20). The rear cover (50) can shield the rear of the installation space (21). The rear cover (50) is positioned on the opposite side of the front plate (40), with components such as the fluid regulator (140) in between. Accordingly, components placed in the installation space (21) can be positioned between the rear cover (50) and the front plate (40). Reference numeral 52 indicates a cover body that forms the frame of the rear cover (50).

[0125] The rear cover (50) may be structured to protrude from the rear of the casing (20). The rear cover (50) may be integrally provided at the rear of the casing (20). The rear cover (50) may be provided with inlet guides (56a, 56b) for connection with inlet sections (IH1, IH2). The inlet guides (56a, 56b) may be configured as a pair for the inflow of hot and cold water. Referring to FIG. 4, cover inlet holes (53, 54) for connection with the inlet sections (IH1, IH2) are formed in the rear cover (50), and the cover inlet holes (53, 54) may be opened to the opposite side of the inlet guides (56a, 56b).

[0126] The rear cover (50) may be provided with an outlet nozzle (200) that constitutes the second outlet section (OH2). The outlet nozzle (200) allows water to be discharged through the second outlet section (OH2). The first discharge pipe (1) or the second discharge pipe (3) described above may be connected to the outlet nozzle (200). As the outlet nozzle (200) rotates, the direction of the discharge pipe (220) of the outlet nozzle (200) can be changed, thereby allowing the direction of the second outlet section (OH2) to be varied. Referring to FIG. 18, the connecting pipe (210) of the outlet nozzle (200) is connected to the water discharge selector (190), and the discharge pipe (220) connected to the connecting pipe (210) extends in a direction orthogonal to it to form the second outlet section (OH2).

[0127] Referring to FIG. 5, the Euro guide unit (100) is positioned in front of the rear cover (50). A plurality of fluid paths are formed inside the Euro guide unit (100). These plurality of fluid paths can deliver or receive water to the fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), and the water outlet selector (190). In this embodiment, the Euro guide unit (100) is responsible for the water delivery path. Of course, water also flows inside the fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), and the water outlet selector (190), but the role of delivering water between these components is performed by the Euro guide unit (100).

[0128] The above-mentioned Euro guide unit (100) may be positioned within the installation space (21) at a location offset from the front plate (40) and the rear cover (50). The above-mentioned Euro guide unit (100) may be positioned further from the front plate (40) than the fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), and the water outlet selector (190). In this way, if the above-mentioned Euro guide unit (100) is positioned close to the installation surface (W), the bending moment applied to the installation adapter (7) by the weight of the above-mentioned Euro guide unit (100) can be reduced.

[0129] The above-mentioned Euro guide unit (100) can be erected at the rear of the installation space (21). Here, being erected means that the upper and lower ends of the Euro guide unit (100), which have a width greater than the thickness of the Euro guide unit (100) based on the front-rear direction, are positioned in the height direction. In other words, the Euro body (110, 120) forming the frame of the Euro guide unit (100) is composed of a first Euro body (110) and a second Euro body (120), and the Euro guide unit (100) is positioned in the installation space (21) such that the direction in which they are joined together is the front-rear direction.

[0130] In another embodiment, the Euro guide unit (100) may be positioned at the top or bottom of the installation space (21). That is, the Euro guide unit (100) may be positioned horizontally at the top of the installation space (21) or horizontally at the bottom.

[0131] The above-described Euro guide unit (100) may be provided with a plurality of inlet sections (IH1, IH2). The inlet sections (IH1, IH2) are for supplying raw water. The plurality of inlet sections (IH1, IH2) are connected to the flow paths inside the Euro guide unit (100). The plurality of inlet sections (IH1, IH2) may be formed at the front and rear of the Euro guide unit (100). In this embodiment, the plurality of inlet sections (IH1, IH2) are opened at the rear of the Euro guide unit (100). The inlet sections (IH1, IH2) may be connected to a supply pipe (not shown) embedded in the installation surface (W) through the inlet guide (56a, 56b). Among the above inlet sections (IH1, IH2), cold water may be supplied to the first inlet section (IH1) and hot water may be supplied to the second inlet section (IH2). Alternatively, conversely, hot water may be supplied to the first inlet section (IH1) and cold water may be supplied to the second inlet section (IH2). Drawing reference numerals SH1 and SH2 represent service holes, indicating holes for injecting cleaning water for cleaning the flow guide unit (100).

[0132] A reinforcing plate (130) may be attached to the above-mentioned Euro guide unit (100). The reinforcing plate (130) can reinforce the strength of the above-mentioned Euro guide unit (100). When the above-mentioned Euro guide unit (100) is connected to the above-mentioned installation adapter (7), a bending moment caused by the weight of the entire faucet (10) together with the above-mentioned installation adapter (7) may be concentrated on the above-mentioned Euro guide unit (100). Accordingly, the above-mentioned Euro guide unit (100) may be damaged or displaced from the installation position. The reinforcing plate (130) can prevent such damage or displacement of the above-mentioned Euro guide unit (100). Referring to FIG. 13, the above-mentioned Euro guide unit (100) is provided with plate assembly holes (116, 126) for assembling the reinforcing plate (130).

[0133] Specifically, the reinforcing plate (130) may have a flat plate structure. The reinforcing plate (130) may be made of a high-strength metal material. The reinforcing plate (130) may be in surface contact with the surface of the flow guide unit (100). The reinforcing plate (130) may be coupled to the first flow body (110) in a state of surface contact with the surface of the first flow body (110) of the flow guide unit (100). The installation adapter (7) may be coupled to the reinforcing plate (130). Accordingly, the installation adapter (7) may not be directly coupled to the flow guide unit (100), but may be coupled indirectly through the reinforcing plate (130). In this embodiment, the reinforcing plate (130) is assembled to the flow guide unit (100) by a plate fastener (B1). As another example, the reinforcing plate (130) may be omitted or embedded in the Euro guide unit (100) or the rear cover (50).

[0134] A pair of plate holes (133, 134) for connecting the inlet guide (56a, 56b) and the Euro guide unit (100) may be opened in the reinforcing plate (130). Among the pair of plate holes (133, 134), the first plate hole (133) may be a part into which cold water flows. Among the pair of plate holes (133, 134), the second plate hole (134) may be a part into which hot water flows. Reference numerals 137a and 137b indicate holes for exposing the service holes (SH1, SH2) to the rear.

[0135] Referring to FIGS. 6 and 7, a fluid regulator (140), a flow regulator (150), a filter (160), a generator (170), a transfer pipe (180), and an outlet selector (190) may be arranged in front of the Euro guide unit (100). The fluid regulator (140), flow regulator (150), filter (160), generator (170), transfer pipe (180), and outlet selector (190) may be arranged in the left and right directions. More precisely, the Euro guide unit (100), the fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), the transfer pipe (180), and the water outlet selector (190) are arranged in the front-rear direction, while the fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), the transfer pipe (180), and the water outlet selector (190) are arranged in the left-right direction relative to each other. As another example, some or all of the fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), the transfer pipe (180), and the water outlet selector (190) may be arranged in the up-down direction.

[0136] The above fluid regulator (140), flow regulator (150), filter (160), generator (170), transfer pipe (180), and water outlet selector (190) can be assembled to the above flow guide unit (100). In FIG. 6, reference numeral B2 represents a fastener for fixing the switching valve device (240), which will be described later and surrounds the fluid regulator (140), to the above flow guide unit (100); B3 represents a fastener for fixing the above flow regulator (150) to the above flow guide unit (100); B4 represents a fastener for fixing the above flow regulator (150) to the above flow guide unit (100); and B4 represents a fastener for fixing the above transfer pipe (180) to the above flow guide unit (100).

[0137] The fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), and the water outlet selector (190) can each be connected to the flow guide unit (100). Here, connection means that water can pass between the two parts. In this embodiment, except for the generator (170) and the water outlet selector (190), the respective parts are not directly connected to each other but can be indirectly connected through the flow guide unit (100). Accordingly, the flow guide unit (100) can handle the flow path for water flow, and the flow guide unit (100) can provide a sufficiently wide and uniformly sized flow path inside.

[0138] The fluid regulator (140) and the flow regulator (150) may be spaced apart from each other in the left-right direction. Between the fluid regulator (140) and the flow regulator (150), the filter (160), the generator (170), the transfer pipe (180), and the water outlet selector (190) may be arranged. In this way, if the parts other than the flow guide unit (100) are not arranged in the front-to-back direction but are arranged in the left-to-right or up-to-down direction, the front-to-back length of the water supply device (10) can be minimized. As previously explained, if the front-to-back length of the water supply device (10) is short, the bending moment applied to the installation adapter (7) can be reduced.

[0139] Referring to FIG. 7, a plurality of connectors (122b, 127a, OH2, FH) are opened in front of the Euro guide unit (100). The plurality of connectors (122b, 127a, OH2, FH) are connected to the fluid paths inside the Euro guide unit (100). Additionally, the plurality of connectors (122b, 127a, OH2, FH) are connected to the fluid regulator (140), the flow rate regulator (150), the filter (160), the generator (170), and the water outlet selector (190). Accordingly, the fluid regulator (140), the flow rate regulator (150), the filter (160), the generator (170), and the water outlet selector (190) are connected to each other via the Euro guide unit (100) and can exchange water. For reference, only parts of the above-mentioned connectors (122b, 127a, OH2, FH) are shown in Fig. 7. All of the above-mentioned connectors are shown in Fig. 12, which will be explained again below.

[0140] Referring to FIG. 8, the sequence of water flow between the above components is as follows: First, raw water introduced into the inlet sections (IH1, IH2, shown in FIG. 5) of the flow guide unit (100) is supplied to the fluid regulator (140). After the cold water and hot water are mixed in the fluid regulator (140), the mixed water is delivered to the flow regulator (150) by the flow guide unit (100). The mixed water is delivered back to the flow guide unit (100) at a flow rate controlled by the flow regulator (150), and the flow guide unit (100) delivers the mixed water to the filter (160). The purified water purified in the filter (160) is delivered to the generator (170) via the flow guide unit (100). As the purified water passes through the generator (170), it generates power for the generator (170) and is delivered to the water outlet selector (190) via the transfer pipe (180) described below. The purified water is discharged to one of the outlet sections (OH1, OH2) along the path selected at the water outlet selector (190). More details regarding this water flow will be described below.

[0141] In FIGS. 9 and FIGS. 10, the components placed in the installation space (21) are respectively shown in a top view and a bottom view. As seen therein, the installation space (21) can be divided into a first area (T1) and a second area (T2). The first area (T1) and the second area (T2) are arranged in the front-rear direction. The first area (T1) and the second area (T2) are arbitrarily partitioned sections of the installation space (21). The first area (T1) and the second area (T2) may not actually be clearly distinguishable.

[0142] The above-mentioned Euro guide unit (100) may be placed in the first area (T1). The fluid regulator (140), the flow regulator (150), the filter (160), the generator (170), the transfer pipe (180), and the water outlet selector (190) may be placed in the second area (T2) of the installation space (21). Here, the second area (T2) is positioned closer to the front of the casing (20) than the first area (T1). Conversely, the first area (T1) is positioned closer to the installation surface (W) than the second area (T2). In this embodiment, the Euro guide unit (100) is placed in the first area (T1) and does not encroach upon the second area (T2). This allows the installation space (21) to be utilized efficiently.

[0143] FIGS. 11 to 13 illustrate two parts constituting the Euro guide unit (100) in a disassembled state. The Euro guide unit (100) has a framework formed by a Euro body (110, 120). The Euro body (110, 120) may include a first Euro body (110) and a second Euro body (120). The first Euro body (110) and the second Euro body (120) may have corresponding shapes. When the first Euro body (110) and the second Euro body (120) are combined, they may have the same area so that neither one protrudes further outward from the perimeter. When the first Euro body (110) and the second Euro body (120) are combined, a plurality of Euros may be formed between them.

[0144] The plurality of fluid paths can connect the inlet sections (IH1, IH2) and the outlet sections (OH1, OH2). The plurality of fluid paths can connect components such as a fluid regulator (140), a flow regulator (150), a filter (160), and a generator (170) to allow water to flow between them.

[0145] Referring to FIG. 11, the first flow path (WP1) may be provided in the first flow path body (110) in a first recess (111) that is recessed relatively backward from the surface of the first flow path body (110). In FIG. 12, the second flow path (WP2) may be provided in the second flow path body (120) in a second recess (121) that is recessed relatively forward from the surface of the second flow path body (120). The first flow path (WP1) and the second flow path (WP2) may have corresponding shapes and positions. The first flow path (WP1) and the second flow path (WP2) may form continuous flow paths in the front-rear direction.

[0146] Here, the first flow paths (WP1) include all of the plurality of paths formed in the first flow path body (110). The plurality of paths formed in the first flow path body (110) are independent paths and form paths for water flow. Similarly, the second flow paths (WP2) include all of the plurality of paths formed in the second flow path body (120). The plurality of paths formed in the second flow path body (120) are independent paths and form paths for water flow.

[0147] In this embodiment, the first recessed portion (111) in which the first flow path portions (WP1) are formed is shaped to be relatively recessed compared to the first contact portion (111') protruding from the first flow path body (110). The second recessed portion (121) in which the second flow path portions (WP2) are formed is shaped to be relatively recessed compared to the second contact portion (121') protruding from the second flow path body (120).

[0148] The first contact portion (111') may protrude from the surface of the first flow body (110) toward the second flow body (120). Conversely, the second contact portion (121') may protrude from the surface of the second flow body (120) toward the first flow body (110). The first contact portion (111') and the second contact portion (121') may be in close contact with each other to form the flow channels. When the first contact portion (111') and the second contact portion (121') are in close contact, the first contact portion (111') and the second contact portion (121') become a kind of wall that is continuous in the front-rear direction, and the flow channels may be formed between the walls.

[0149] In the portion where the first Euro body (110) and the second Euro body (120) face each other, the Euro channels can be formed in the remaining portion excluding the portion where the first contact portion (111') and the second contact portion (121') are in contact. That is, since the first contact portion (111') and the second contact portion (121') are a kind of wall that is continuous in the front-rear direction, the Euro channels, which are empty spaces, can be formed in the remaining portion excluding the portion where the first contact portion (111') and the second contact portion (121') are in contact.

[0150] The first contact portion (111') and the second contact portion (121') can be fused together. Here, fusion means being fixed in a state of being in close contact with each other. The first contact portion (111') and the second contact portion (121') can be fused together by vibration fusion, thermal fusion, or ultrasonic fusion. Thermal fusion can be implemented by applying pressure to the first Euro body (110) and the second Euro body (120), which are fixed to two jigs, with a heating plate heated to a temperature slightly higher than the melting temperature of the material to heat, soften, and melt them, and then removing the heating plate when the fusion portion is sufficiently melted, applying pressure to each other, and cooling until they harden to fuse them.

[0151] As another example, the first contact portion (111') and the second contact portion (121') may be joined by a bonding method. As yet another example, the first Euro body (110) and the second Euro body (120) may be joined to each other using a separate fastener such as a screw. In this case, the first contact portion (111') and the second contact portion (121') may be sealed using a rubber sealing member. Reference numerals BH1 and BH2 represent body fastening holes formed in the first Euro body (110) and the second Euro body (120), respectively, which can be used for joining between the first Euro body (110) and the second Euro body (120) or for joining between the Euro guide unit (100) and other parts.

[0152] Referring to the enlarged portion of FIG. 14, the first contact portion (111') and the second contact portion (121') may have corresponding uneven structures. In this embodiment, a relatively recessed coupling groove (111a) is formed in the first contact portion (111'), and a coupling protrusion (121a) that is inserted into the coupling groove (111a) is provided in the second contact portion (121'). When the coupling groove (111a) and the coupling protrusion (121a) are coupled in this way, the coupling area increases, allowing for a stronger coupling between the first contact portion (111') and the second contact portion (121'). As another example, conversely, a relatively protruding coupling protrusion may be provided in the first contact portion (111'). As another example, the coupling groove (111a) and the coupling protrusion (121a) may be omitted, and the first contact portion (111') and the second contact portion (121') may have a planar structure.

[0153] As shown in FIG. 14, the first flow body (110) includes a first flow surface (110a) that is recessed backward to form a flow path, and a second flow surface (110b) formed on the opposite side of the first flow surface (110a). The second flow surface (110b) has a structure that protrudes toward the rear cover (50). More precisely, the second flow surface (110b) protrudes backward to the same extent as the first flow surface (110a) is recessed backward. In this way, the thickness (D) of the first flow body (110) can be formed uniformly in the portion forming the flow path. A flow structure that protrudes backward while having the same thickness acts as a kind of reinforcing rib, thereby increasing the durability of the first flow body (110). In addition, this structure of the first flow body (110) can reduce the weight of the flow guide unit (100). If the second Euro surface (110b) has a flat structure without protruding backward, the first Euro body (110) cannot form a rib structure around the Euro, and the weight of the Euro guide unit (100) also increases.

[0154] The above-mentioned fluid paths can form a path independent of the installation space (21). Since the above-mentioned fluid paths are provided inside the fluid guide unit (100), the above-mentioned fluid paths can be partitioned from the installation space (21) to form an independent path. That is, water inside the faucet (10) flows only within the parts such as the fluid guide unit (100) or the fluid regulator (140), and the installation space (21) itself does not guide the flow of water.

[0155] In this embodiment, the plurality of channels may be arranged on the same plane within the channel guide unit (100). Here, the same plane refers to a virtual plane, which is a plane extending in a direction orthogonal to the front-rear direction. As shown in FIG. 14, a virtual extension line (SP) constituting the same plane is indicated. When the plurality of channels are arranged on the same plane within the channel guide unit (100), the width in the front-rear direction occupied by the channels is maintained constant, so the channel guide unit (100) can be miniaturized. In addition, when the channels are arranged on the same plane, excessive bends in the channels are eliminated, allowing for smooth water flow.

[0156] Referring to FIG. 13, the plurality of flow paths may be composed of independent individual flow paths (P1 / P1', P2 / P2', P3 / P3', P4 / P4'). The individual flow paths (P1 / P1', P2 / P2', P3 / P3', P4 / P4') can (i) deliver water introduced through inlet sections (IH1, IH2) to each component, (ii) connect the components, and (iii) discharge water that has passed through the components through outlet sections (OH1, OH2). The individual flow paths (P1 / P1', P2 / P2', P3 / P3', P4 / P4') may have independent paths. Here, independence may mean that each individual fluid path (P1 / P1', P2 / P2', P3 / P3', P4 / P4') has a partitioned path and is not directly connected to one another. The individual fluid paths (P1 / P1', P2 / P2', P3 / P3', P4 / P4') that are disconnected from one another are indirectly connected by components such as the fluid regulator (140).

[0157] Referring to FIGS. 13 and 15, the first flow body (110) constituting the flow guide unit (100) may be provided with inlet sections (IH1, IH2). The inlet sections (IH1, IH2) are parts for receiving raw water from the outside into the flow paths. Cold water and hot water may be supplied through the inlet sections (IH1, IH2). In this embodiment, the inlet sections (IH1, IH2) include a first inlet section (IH1) for cold water inflow and a second inlet section (IH2) for hot water inflow. As another example, only one inlet section may be provided in the first flow body (110).

[0158] The inlet sections (IH1, IH2) may be opened in the front-rear direction of the first flow body (110). More precisely, the first flow body (110) and the second flow body (120) are connected to each other in a first direction (front-rear direction), and the inlet sections (IH1, IH2) may also be opened in the first direction. In this way, the inlet sections (IH1, IH2) may be provided penetrating a wide portion of the first flow body (110), and the diameter of the inlet sections (IH1, IH2) may be increased. When the diameter of the inlet sections (IH1, IH2) is increased, external raw water can flow in smoothly through the inlet sections (IH1, IH2). If the diameter of the inlet sections (IH1, IH2) is small, the water pressure in the inlet sections (IH1, IH2) increases, and there is a risk that cracks and leakage may occur in the fused portion between the first flow body (110) and the second flow body (120). In this embodiment, the water pressure can be reduced by opening the inlet sections (IH1, IH2) in the first direction.

[0159] A first outlet through-hole (OH2A) that passes through a second outlet section (OH2) may be formed in the first Euro body (110). Through the first outlet through-hole (OH2A), an outlet nozzle (200, shown in FIG. 10), which will be described later, may protrude outward. In this embodiment, the second outlet section (OH2) is formed in the outlet nozzle (200).

[0160] For reference, the second outlet section (OH2) may be a part through which water passing through the Euro guide unit (100) is discharged to the outside. Here, "outside" refers to the space through which water is discharged via the outlet section. A separate second discharge pipe (3, see FIG. 1) may be connected to the second outlet section (OH2) to allow water to be discharged from a distant location. In this embodiment, the first outlet section (OH1) is provided in the water discharge selector (190). As another example, at least one of the first outlet section (OH1) or the second outlet section (OH2) may be provided directly in the first Euro body (110). As yet another example, the second outlet section (OH2) may also be provided in the water discharge selector (190).

[0161] In this embodiment, the first outlet section (OH1) and the second outlet section (OH2) are formed in the front-rear direction of the flow guide unit (100). The first outlet section (OH1) and the second outlet section (OH2) may extend in the front-rear direction, which is the same as the thickness direction of the flow guide unit (100). At this time, the direction in which water is finally discharged through the first outlet section (OH1) and the second outlet section (OH2) may be in the up-down direction or the left-right direction, rather than the front-rear direction.

[0162] Service holes (SH1, SH2) may be opened in the first Euro body (110). The service holes (SH1, SH2) are for maintenance of the water tap (10). The service holes (SH1, SH2) may normally be kept closed by separate plugs (HP1, HP2, shown in FIG. 18). By removing the plugs (HP1, HP2) and injecting cleaning water or high-temperature steam into the interior of the Euro guide unit (100) through the service holes (SH1, SH2), the fluid paths and each component inside the Euro guide unit (100) can be cleaned.

[0163] As shown in FIG. 13, in the first flow body (110) and the second flow body (120), flow paths are formed in pairs at corresponding positions. A pair of flow paths formed to correspond to each other in the first flow body (110) and the second flow body (120) are combined to form a single flow path. In this embodiment, the flow paths of the first flow body (110) and the flow paths of the second flow body (120) are assigned corresponding reference numerals. For example, the inflow flow path (P1) formed in the first flow body (110) is indicated by reference numeral P1, and the inflow flow path (P1) formed in the second flow body (120) is indicated by reference numeral P1'. Below, the explanation is based on the flow paths formed in the first flow body (110), and the specific explanation of the flow paths of the second flow body (120) is replaced by the explanation of the flow paths of the first flow body (110).

[0164] FIG. 15 illustrates the first Euro body (110). FIG. 15 shows the direction of water flow along the flow path of the first Euro body (110) as indicated by an arrow. For reference, FIG. 15 illustrates the discharge of mixed water in which cold water and hot water are mixed. Looking at the flow paths of the first Euro body (110), an inlet flow path (P1) is formed in the first Euro body (110). The inlet flow path (P1) is a flow path into which raw water is introduced. The inlet flow path (P1) can be divided into a first inlet flow path (P1a) and a second inlet flow path (P1b). The first inlet flow path (P1a) is a path into which cold water from the raw water is introduced, and the second inlet flow path (P1b) is a path into which hot water is introduced.

[0165] As another example, if the above-mentioned Euro guide unit (100) is omitted or the above-mentioned Euro guide unit (100) is integrally provided in the casing (20), the above-mentioned inflow path (P1) may be considered as the first inflow path (P1a) and the second inflow path (P1b) defined by the casing (20).

[0166] At this time, the first inlet section (IH1) is connected to one end of the first inlet passage (P1a). The other end of the first inlet passage (P1a) is connected to the first temperature control connector (122a, shown in FIG. 130), which will be described later. The first temperature control connector (122a) is formed at the other end of the first inlet passage (P1a) of the second passage body (120). For reference, FIG. 15 only shows the first passage body (110), so the first temperature control connector (122a) formed in the second passage body (120) is not visible, but the location of the first temperature control connector (122a) is indicated by a dotted line to aid understanding.

[0167] The first temperature control connector (122a) is connected to the fluid regulator (140). More precisely, the first temperature control connector (122a) is connected to a switching valve device (240) to be described below, and the switching valve device (240) delivers the cold water that has entered through the first temperature control connector (122a) to the fluid regulator (140). Thus, the cold water that has entered through the first inlet (IH1) passes through the first inlet path (P1a) and is then delivered to the fluid regulator (140) through the first temperature control connector (122a). Arrow ① in FIG. 15 indicates the direction in which the cold water flows along the first inlet path (P1a).

[0168] The second inlet section (IH2) is connected to one end of the second inlet passage (P1b). The second temperature control connector (122b, shown in FIG. 13), which will be described later, is connected to the other end of the second inlet passage (P1b). The second temperature control connector (122b) is formed at the other end of the second inlet passage (P1b) of the second passage body (120). For reference, FIG. 15 only shows the first passage body (110), so the second temperature control connector (122b) formed in the second passage body (120) is not visible, but the location of the second temperature control connector (122b) is indicated by a dotted line to aid understanding.

[0169] The second temperature control connector (122b) is connected to the fluid regulator (140). More precisely, the second temperature control connector (122b) is connected to a switching valve device (240) to be described below, and the switching valve device (240) delivers the hot water that has entered the second temperature control connector (122b) to the fluid regulator (140). Thus, the hot water that has entered the second inlet (IH2) passes through the second inlet path (P1b) and is then delivered to the fluid regulator (140) through the second temperature control connector (122b). Arrow ② in FIG. 15 indicates the direction in which the hot water flows along the second inlet path (P1b).

[0170] A discharge channel (P2) is formed in the first Euro body (110). The discharge channel (P2) is a path through which a mixed water, in which cold water and hot water are mixed, passes through the fluid regulator (140). One end of the discharge channel (P2) is connected to a third temperature control connector (122c). In FIG. 15, the location of the third temperature control connector (122c) is indicated by a dotted line. As seen in FIG. 13, the third temperature control connector (122c) is formed in the second Euro body (120). The third temperature control connector (122c) is connected to the mixed water discharge pipe (141a, shown in FIG. 19) of the fluid regulator (140), which will be described later, and receives the mixed water discharged by the fluid regulator (140). For reference, arrow ③ in FIG. 15 indicates the direction in which the mixed water flows along the discharge channel (P2).

[0171] The other end of the discharge channel (P2) can be connected to the first flow control connector (123a) of the flow control connector (123). In FIG. 15, the location of the first flow control connector (123a) is indicated by a dotted line. As shown in FIG. 13, the first flow control connector (123a) is configured to be branched, and a second flow control connector (123b) can be formed between them. The mixed water flowing into the first flow control connector (123a) can be discharged through the second flow control connector (123b) after the flow rate is controlled by the flow regulator (150) to become controlled water.

[0172] The regulated water discharged through the second flow control connector (123b) flows along the filter channel (P3) formed in the first flow body (110). The filter channel (P3) delivers the regulated water with the controlled flow rate to the filter (160). In FIG. 15, arrow ④ represents the path of the regulated water flowing along the filter channel (P3).

[0173] Both ends of the filter channel (P3) are connected to the second flow control connector (123b) and the filter connector (FH), respectively. More precisely, the other end of the filter channel (P3) is connected to the first filter connector (124a) that constitutes the filter connector (FH). The first filter connector (124a) serves to transfer the controlled water to the filter (160). Referring to FIG. 13, the first filter connector (124a) and the second filter connector (124b) that constitute the filter channel (P3) are formed side by side on the second channel body (120). The second filter connector (124b) serves as an outlet through which purified water that has passed through the filter (160) is discharged. For reference, the first filter connector (124a) and the second filter connector (124b) can be connected to the filter inlet (39a, illustrated in FIG. 5) and the filter outlet (39b, illustrated in FIG. 5), respectively, of the filter shell (39) described above.

[0174] Referring to FIG. 6, the regulated water can be introduced into / out of the inlet / outlet (164) of the filter (160) through the filter channel (P3). The regulated water can be supplied to the filter inlet (164a) of the filter (160). The regulated water that has passed through the filter (160) can become purified water. The purified water can be discharged through the filter outlet (164b) of the filter (160).

[0175] The purified water discharged through the second filter connector (124b) is transferred to the transfer path (P4). The transfer path (P4) is a path connecting the filter (160) and the generator (170). Both ends of the transfer path (P4) are connected to the second filter connector (124b) and the generator connector (127a), which will be described below, respectively. In FIG. 15, the location of the generator connector (127a) is indicated by a dotted line. As shown in FIG. 13, the generator connector (127a) can be formed in the generator connection part (125, see FIG. 6) provided in the second path body (120). Arrow ⑤ in FIG. 15 represents the path of the purified water flowing along the transfer path (P4).

[0176] After flowing through the above-mentioned transmission path (P4), the water is transmitted to the generator (170) through the generator connector (127a). As the water passes through the generator (170), it can generate power in the generator (170). The generator (170) is positioned in front of the above-mentioned path guide unit (100), and in FIG. 15, the path flowing inside the generator (170) is represented by a dotted line and arrow ⑥. For reference, in FIG. 7, the generator (170) is provided with a generator inlet (172) connected to the generator connector (127a) of the above-mentioned path guide unit (100), and the generator (170) may include a bracket (171).

[0177] The purified water passing through the generator (170) is transferred to the transfer pipe (180). Referring to FIGS. 7 and 8, the transfer pipe (180) is positioned in front of the flow guide unit (100) and transfers the purified water to the water outlet selector (190). To this end, one end (181) of the transfer pipe (180) is connected to the generator (170), and the other end (185) is connected to the water outlet selector (190). Reference numeral 182 indicates a transfer section that transfers the purified water in the height direction, that is, in the up-and-down direction. The transfer pipe (180) may be omitted or may be integrally provided with the generator (170) or the water outlet selector (190). The transfer pipe (180) may be supported on the flow guide unit (100) by a pipe mounting section (186).

[0178] As another example, the above-mentioned transfer pipe (180) may be composed of a flow sensor connected to the generator (170). The flow sensor may be composed of a device that connects the generator (170) and the water outlet selector (190) and simultaneously measures the flow rate of purified water passing through the generator (170).

[0179] Looking again at FIG. 15, the path through which the purified water flows in the transfer pipe (180) is represented by a dotted line and arrow ⑦. The purified water passing through the transfer pipe (180) is transferred to the water outlet selector (190, not shown in FIG. 15). Through the water outlet selector (190), the purified water is discharged to the first outlet section (OH1) or the second outlet section (OH2). FIG. 15 shows a first outlet through-hole (OH2A) connected to the second outlet section (OH2), and the first outlet through-hole (OH2A) penetrates the first flow body (110) in the front-rear direction.

[0180] As shown in FIG. 15, in this embodiment, the first inlet channel (P1a), the second inlet channel (P1b), and the discharge channel (P2) are arranged in the vertical direction at different heights from each other. The first inlet channel (P1a) is placed at the relatively highest position, and the discharge channel (P2) is placed at the relatively highest position. The second inlet channel (P1b) is placed between the first inlet channel (P1a) and the discharge channel (P2).

[0181] FIG. 16 illustrates the process in which external cold water is introduced and discharged as cold water without being mixed with hot water. As shown here, the cold water introduced into the first inlet (IH1) can move along the first inlet path (P1a) (direction of arrow ①). The cold water introduced into the fluid regulator (140) through the first temperature control connector (122a) can be introduced into the interior of the fluid regulator (140). The fluid regulator (140) can discharge the introduced cold water without mixing it with hot water.

[0182] Cold water discharged through the third temperature control connector (122c) of the fluid regulator (140) can flow along the discharge path (P2) (direction of arrow ②). Cold water reaching the first flow rate control connector (123a) can be introduced into the flow rate regulator (150). Cold water introduced into the interior of the flow rate regulator (150) through the first flow rate control connector (123a) of the flow rate regulator (150) can be discharged through the second flow rate control connector (123b) of the flow rate regulator (150) after becoming controlled water with a controlled discharge flow rate. For reference, since the structure of the flow rate regulator (150) corresponds to the structure of the fluid regulator (140), a detailed description will be omitted.

[0183] The regulated water discharged through the second flow control connector (123b) can be supplied to the filter (160) through the filter path (P3) (direction of arrow ③). The regulated water that has passed through the filter (160) can become purified water. After passing through the filter (160), the purified water is transferred back into the flow guide unit (100) through the second filter connector (124b). Subsequently, the purified water can be transferred toward the generator (170) through the transfer path (P4) (direction of arrow ④). In FIG. 16, arrow ⑤ indicates the path through which the purified water passes through the generator (170), and arrow ⑥ indicates the path through which the purified water passes through the transfer pipe (180). Since these paths have been described previously, a detailed explanation will be omitted.

[0184] Meanwhile, FIG. 17 illustrates the process in which external hot water is introduced and discharged in a hot water state without being mixed with cold water. As shown here, the hot water introduced into the second inlet section (IH2) can move along the second inlet path (P1b) (direction of arrow ①). The hot water introduced into the fluid regulator (140) through the second temperature control connector (122b) can be introduced into the interior of the fluid regulator (140). The fluid regulator (140) can discharge the introduced hot water without mixing it with cold water.

[0185] The hot water discharged through the third temperature control connector (122c) of the fluid regulator (140) can flow along the discharge path (P2) (direction of arrow ②). The hot water reaching the first flow rate control connector (123a) can be introduced into the flow rate regulator (150). The hot water introduced into the interior of the flow rate regulator (150) through the first flow rate control connector (123a) of the flow rate regulator (150) can be discharged through the second flow rate control connector (123b) of the flow rate regulator (150) after becoming a controlled water with a controlled discharge flow rate.

[0186] The regulated water discharged through the second flow control connector (123b) can be supplied to the filter (160) through the filter path (P3) (direction of arrow ③). The regulated water passing through the filter (160) can become purified water. After passing through the filter (160), the purified water is transferred back into the flow guide unit (100) through the second filter connector (124b). Subsequently, the purified water can be transferred toward the generator (170) through the transfer path (P4) (direction of arrow ④). In FIG. 17, arrow ⑤ indicates the path through which the purified water passes the generator (170), and arrow ⑥ indicates the path through which the purified water passes the transfer pipe (180). Since these paths have been described previously, a detailed explanation will be omitted.

[0187] Meanwhile, looking at the second Eurobody (120) above, as shown in FIG. 13, the second Eurobody (120) is provided with a regulator mounting part (122) in which the fluid regulator (140) is disposed. The regulator mounting part (122) protrudes forward from the front of the second Eurobody (120). Inside the regulator mounting part (122), the switching valve device (240) is disposed together with the fluid regulator (140). The regulator mounting part (122) is connected to a temperature control connector (TH). The first temperature control connector (122a), the second temperature control connector (122b), and the third temperature control connector (122c) constituting the temperature control connector (TH) can each be connected to the regulator mounting part (122). In order to distinguish the above regulator mounting part (122) from the mounting part (123) for mounting the flow regulator (150) to be described later, it will be referred to as the first mounting part (122) below.

[0188] Referring to FIG. 11, the first mounting portion (122) may have a roughly cylindrical shape. A first mounting space (122') is formed inside the first mounting portion (122). The first mounting space (122') is open at the front, through which the fluid regulator (140) and the switching valve device (240) can be mounted. A switching portion fastening hole (122'') for assembly with the switching valve device (240) may be formed at the edge of the first mounting space (122').

[0189] The second Eurobody (120) is provided with a second mounting part (123) in which the flow regulator (150) is disposed. The second mounting part (123) protrudes forward from the front of the second Eurobody (120). The flow regulator (150) is housed inside the second mounting part (123). The second mounting part (123) is connected to a flow control connector (CH). A first flow control connector (123a) and a second flow control connector (123b) constituting the flow control connector (CH) can each be connected to the second mounting part (123).

[0190] The second mounting portion (123) may have a roughly cylindrical shape. A second mounting space (123') is formed inside the second mounting portion (123). The second mounting space (123') is open at the front so that the flow regulator (150) can be mounted therethrough. A regulator fastening hole (123'', shown in FIG. 11) for assembly with the flow regulator (150) may be formed at the edge of the second mounting space (123').

[0191] In the second Eurobody (120) above, a filter connection part (124), a generator connection part (127), and a second outlet through hole (OH2B) may be arranged between the first mounting part (122) and the second mounting part (123). A filter connection part (FH) composed of the first filter connection part (124a) and the second filter connection part (124b) may be formed in the filter connection part (124). The generator connection part (127a) may be formed in the generator connection part (127). In this embodiment, the filter connection part (124) and the generator connection part (127) protrude forward so that connection with the filter (160) and the generator (170) can be easily made.

[0192] The second Eurobody (120) is provided with a second outlet section connection part (129). The second outlet section connection part is penetrated in the front-rear direction, and a second outlet through hole (OH2B) is formed at its center. The second outlet through hole (OH2B) corresponds to the first outlet through hole (OH2A) and is connected to the second outlet section (OH2). The second outlet section connection part (129) is connected to the outlet nozzle (200) and serves to discharge water delivered from the water discharge selector (190) to the second outlet section (OH2) provided in the outlet nozzle (200).

[0193] The second outlet connecting portion (129) may have a ring shape protruding forward. A support ledge (129a) may be provided on the edge of the second outlet connecting portion (129) that protrudes in this manner. The support ledge (129a) is for fixing the outlet nozzle (200), and the outlet nozzle (200) can maintain a specific installation angle by engaging with the support ledge (129a). The outlet nozzle (200) may be provided with a nozzle protrusion (not shown) that engages with the support ledge (129a). Such a support ledge (129a) may be provided on the edge of the second outlet connecting portion (129). The nozzle fixing ledge may protrude further forward from the second outlet connecting portion (129). Multiple support ledges (129a) may be arranged along the rotational direction of the outlet nozzle (200). As another example, the support jaw (129a) can be omitted.

[0194] The second Eurobody (120) may be provided with a reinforcing rib (128). The reinforcing rib (128) may protrude forward or backward from the surface of the second Eurobody (120). FIG. 11 illustrates the reinforcing rib (128) protruding forward from the front of the second Eurobody (120). The reinforcing rib (128) may be extended along the direction of travel of the Euro.

[0195] Referring to FIG. 14, the second Eurobody (120) may be provided with support bosses (128'). The support bosses (128') protrude forward from the surface of the second Eurobody (120). The second support bosses (128') may support components positioned in front of the Euro guide unit (100), such as the generator (170) and the transmission pipe (180). To this end, the support bosses (128') protrude to a position adjacent to the surface of the components.

[0196] Referring to FIG. 18, the flow of raw water entering the faucet (10) and the flow of regulated water discharged to the outside after passing through the faucet (10) are illustrated. Arrow ① indicates the flow of cold water among the raw water. For reference, only a part of the first inlet path (P1a) guiding the cold water is illustrated in FIG. 18, so the flow of cold water is represented by a dotted line. Arrow ② indicates the flow of hot water among the raw water, and the hot water can be guided along the second inlet path (P1b). In this way, the flow of raw water can be formed in the left and right directions along the path guide unit (100).

[0197] Looking at the flow of the regulated water discharged after passing through the generator (170), the flow discharged to the first outlet section (OH1) by the water outlet selector (190) is indicated by arrow ③ in FIG. 18. The first outlet section (OH1) is formed below the water tap (10). The flow discharged to the second outlet section (OH2) by the water outlet selector (190) is indicated by arrow ④ in FIG. 18. The second outlet section (OH2) is formed by the outlet nozzle (200), and in this embodiment, the second outlet section (OH2) is formed behind the first outlet section (OH1). More precisely, the second outlet section (OH2) is provided at a position away from the rear of the flow guide unit (100). In FIG. 18, reference numeral 197 represents a water discharge control unit for operating the water discharge selector (190), and a separate control button may be combined therein.

[0198] Referring to FIG. 19, we will examine the fluid regulator (140). The fluid regulator (140) can control the temperature by mixing the incoming cold water and hot water. In this case, the fluid regulator (140) can be viewed as a type of valve. In this embodiment, the fluid regulator (140) can implement a constant temperature function that maintains the temperature of the mixed water near a set temperature. The fluid regulator (140) can control the ratio of the mixed cold water and hot water by adjusting the opening degree of the valve that opens and closes internally.

[0199] The above fluid regulator (140) may be configured as a thermostatic cartridge that allows water to be supplied at a temperature set by the user rotating the control knob (300). The reference numeral TS represents a thermal sensing element, which can regulate the flow of hot and cold water by expanding or contracting according to temperature changes. For example, if the temperature of the hot water suddenly rises, the thermal sensing element (TS) can expand to reduce the flow rate of the hot water and increase the flow rate of the cold water. The thermal sensing element (TS) may be composed of a bimetallic strip or a wax expansion element.

[0200] Although not shown, a moving valve (piston) and a spring may be provided inside the fluid regulator (140). The moving valve moves in response to the contraction / expansion of the temperature sensing element (TS) and controls the opening area of ​​the mixing path (142) described later. The spring provides an elastic force to return the moving valve to its original position. Since the structure of this fluid regulator (140) is the same as that of a general thermostatic cartridge, a detailed description of the structure, excluding the mixing path (142) described later, will be omitted.

[0201] The user can control the fluid regulator (140) by operating the control knob (300). When the control knob (300) is rotated, the water outlet temperature of the fluid regulator (140) is varied. At this time, a mixing channel (142) is provided on the side of the mixing body (141), and the mixing channel (142) allows cold water and hot water to pass through. The cold water / hot water that has passed through the mixing channel (142) is delivered to the mixed water discharge pipe (141a) formed in the center of the fluid regulator (140). At this time, the amount of cold water and hot water delivered to the mixed water discharge pipe (141a) changes according to the rotation angle of the setting head part (147) linked to the rotation of the control knob (300). In this embodiment, the mixing channel (142) is formed on the side of the mixing body (141), so it can be considered as a side permeable section.

[0202] More specifically, the mixing channel (142) may include a first mixing channel (142a) and a second mixing channel (142b). That is, the fluid regulator (140) may define the first mixing channel (142a) and the second mixing channel (142b). The mixing channel (142) allows cold water and hot water to pass through the first mixing channel (142a) and the second mixing channel (142b) so that they are mixed in the fluid regulator (140).

[0203] In this embodiment, the mixing channel (142) consists of a first mixing channel (142a) and a second mixing channel (142b), each formed on the outer surface of the side of the fluid regulator (140). The inlet of the first mixing channel (142a) may be formed along the first outer surface of the fluid regulator (140). The inlet of the second mixing channel (142b) may be formed along the second outer surface of the fluid regulator (140). Here, the first outer surface and the second outer surface refer to different surfaces of the fluid regulator (140). The inlet of the first mixing channel (142a) and the inlet of the second mixing channel (142b) may be referred to as the first side permeable section and the second side permeable section, respectively.

[0204] The first mixing channel (142a) and the second mixing channel (142b) are formed to be spaced apart from each other in the front-rear direction, that is, in the axial direction. Looking at FIG. 19, the first mixing channel (142a) is located ahead of the second mixing channel (142b). Different raw water passes through the first mixing channel (142a) and the second mixing channel (142b). For example, cold water passes through the first mixing channel (142a), and hot water passes through the second mixing channel (142b). Then, the cold water and hot water are mixed inside the mixing water discharge pipe (141a).

[0205] At this time, when the setting head portion (147) of the fluid regulator (140) is rotated, the set temperature of the fluid regulator (140) is adjusted. During this process, the area in which the first mixing path (142a) and the second mixing path (142b) are opened to the outside, that is, to the switching valve device (240) described later, may change. Accordingly, the area in which the first mixing path (142a) and the second mixing path (142b) are connected to the path guide unit (100) also changes, and the amount of cold water and hot water delivered to the mixed water discharge pipe (141a) is adjusted. For example, when the setting head portion (147) is rotated while the control knob (300) is rotated clockwise (based on FIG. 3), the area in which the first mixing path (142a) is opened widens, and the flow rate of cold water flowing into the mixed water discharge pipe (141a) increases. The structure of such a fluid regulator (140) is one example, and the parts of the fluid regulator (140) may have various structures that mix raw water of different temperatures through rotational movement.

[0206] The fluid regulator (140) may be provided with a regulator head (146). The regulator head (146) protrudes forward from the mixing body (141). The regulator head (146) may be surrounded by the temperature control mounting part (37) inside the casing (20). The regulator head (146) may have a roughly cylindrical shape. The regulator head (146) protrudes further forward from the switching valve device (240) to be described later.

[0207] The above regulator head (146) is provided with a setting head portion (147), and the setting head portion (147) can be coupled to a knob holder (360) to be described later. When the control knob (300) rotates the knob holder (360), the setting head portion (147) changes the set temperature of the fluid regulator (140). The setting head portion (147) can be positioned on the rotation axis of the control knob (300). In this embodiment, the setting head portion (147) and the knob holder (360) can be assembled with a knob fastener (not shown).

[0208] Reference numeral 149 indicates a regulator fastener, and the regulator fastener (149) can fix the mixing body (141) to the switching valve device (240) by screwing it to the switching valve device (240) to be described later. As another example, the mixing body (141) may be directly connected to the switching valve device (240), or the fluid regulator (140) itself may be directly connected to the flow guide unit (100).

[0209] The fluid regulator (140) may be surrounded by a switching valve device (240). The switching valve device (240) connects the fluid regulator (140) and the flow guide unit (100). The switching valve device (240) guides the cold water to the first mixing flow path (142a) and guides the hot water to the second mixing flow path (142b). In FIG. 19, reference numeral B2 indicates a fastener for assembling the switching valve device (240) to the second flow path body (120).

[0210] The switching valve device (240) can be connected to the fluid regulator (140) in the direction of the rotation axis of the fluid regulator (140) (see C in FIG. 21). Here, the direction of the rotation axis refers to the direction in which the rotation axis of the setting head part (147) is extended. The direction of the axis is the up-down direction when viewed with reference to FIG. 19. The direction of the rotation axis (C) forms the same direction as the center of rotation of the switching valve device (240), which will be described below.

[0211] The switching valve device (240) can be positioned at various angular positions within the casing (20). Here, an angular position means being rotated at different angles relative to a center of rotation (C). The center of rotation (C) can be a rotation axis; however, in this embodiment, the switching valve device (240) is not rotated around an actual rotation axis but can have various angular positions while rotating around a virtual center of rotation (C). The center of rotation (C) can be formed in the front-rear direction (axial direction) where the fluid regulator (140) is positioned. The center of rotation (C) can be concentric with the center of rotation (C) of the control knob (300). In the following description, the rotation axis of the switching valve device (240) refers to the virtual center of rotation (C), not the actual rotation axis. Furthermore, the direction of the center of rotation refers to the front-rear direction in which the virtual center of rotation (C) extends.

[0212] In this embodiment, the switching valve device (240) has a first angle position and a second angle position. The switching valve device (240) can be switched to the second angle position by rotating around the rotation axis by a certain angle displacement from the first angle position. For example, the angle displacement can be 90 degrees or 180 degrees.

[0213] The switching valve device (240) may be positioned inside the casing (20) at a first angled position and may have a first connection state in which the first inflow path (P1a) and the second inflow path (P1b) are connected to the first mixing path (142a) and the second mixing path (142b), respectively. FIG. 19 illustrates the switching valve device (240) in the first connection state. The switching valve device (240) may be positioned inside the casing (20) at a second angled position rotated about the axial direction from the first angled position and may have a second connection state in which the first inflow path (P1a) and the second inflow path (P1b) are connected to the second mixing path (142b) and the first mixing path (142a), respectively. FIG. 20 illustrates the switching valve device (240) in the second connection state. Below, the first connection state and the second connection state will be described in detail, focusing on the structure of the switching valve device (240).

[0214] Prior to this, referring to FIG. 19, the structure of the control knob (300) can be briefly examined first. The control knob (300) may include a knob body (NB). The knob body (NB) may include a dial-shaped knob cover (310) and a knob core (320) disposed inside the knob cover (310). The knob body (NB) can be pressed axially along a rotary coupler (340), and an elastic member (not given a reference numeral) can return the knob body (NB) to its original position. Reference numerals 330 and 430 represent indicators that allow a user to check the rotation angle of the control knob (300).

[0215] A knob holder (360) may be coupled to the temperature controller (140). The knob holder (360) may be rotated by the control knob (300), and the rotational coupler (340) transmits the rotational force of the control knob (300) to the knob holder (360). The structure of such a control knob (300) is merely an example, and the control knob (300) may be implemented in various forms such as knobs, switches, dials, etc., which can operate the fluid controller (140) using rotational force.

[0216] Next, looking closely at the switching valve device (240), first, looking at FIG. 19 which depicts the switching valve device (240) in the first connected state, the switching valve device (240) is provided with a first switching path (243) protruding rearward toward the flow guide unit (100), and the first switching path (243) is connected to the first inflow path (P1a). At the same time, the first switching path (243) is connected to the first mixing path (142a). That is, the first switching path (243) connects the first inflow path (P1a) and the first mixing path (142a).

[0217] At this time, a passage is formed inside the first switching channel (243). At each end of the passage, a first end (243a) of the first switching channel (243) and a second end (243b) of the first switching channel (243) are formed, respectively. The first end (243a) of the first switching channel (243) forms the inlet of the first switching channel (243). The second end (243b) of the first switching channel (243) forms an outlet that delivers raw water (cold water) that has passed through the first end (243a) to the first mixing channel (142a). Accordingly, the cold water passes through a path consisting of the first inlet path (P1a) - the first temperature control connector (122a) - one end (243a) of the first switching path (243) - the other end (243b) of the first switching path (243) - the first mixing path (142a) - the mixed water discharge pipe (141a). This path is represented by arrow ① in FIG. 19.

[0218] The switching valve device (240) is provided with a second switching path (245) connected to the fluid guide unit (100). The second switching path (245) is a kind of empty space and is connected to the second inflow path (P1b). The second switching path (245) can be defined by the fluid guide unit (100), the switching valve device (240), and the fluid regulator (140). As shown in FIG. 19, the second switching path (245) can be composed of an empty space surrounded by the fluid guide unit (100), the switching valve device (240), the fluid regulator (140), and the first mounting part (122).

[0219] At this time, the second switching path (245) is connected to the second mixing path (142b). Accordingly, hot water passes through a path consisting of the second inlet path (P1b) - second temperature control connector (122b) - second switching path (245) - second mixing path (142b) - mixed water discharge pipe (141a). This path is represented by arrow ② in FIG. 19.

[0220] The above switching valve device (240) can reverse the inflow paths of the cold water and hot water depending on the coupling direction in which it is coupled to the first mounting part (122). For example, a supply device (pipe, etc.) embedded in the installation surface (W) supplies cold water and hot water, and generally, the cold water can be positioned relatively to the right among the cold water and hot water. However, depending on the installation environment, there may also be cases where the cold water is positioned relatively to the left. In this case, when the user rotates the control knob (300) clockwise, hotter water is supplied. Therefore, there is a problem that the temperature display label of the control knob (300) must be changed for the user's convenience and safety.

[0221] In this embodiment, in such cases, the coupling direction in which the switching valve device (240) is coupled to the flow guide unit (100) can be changed so that a higher temperature water is supplied when the control knob (300) is rotated counterclockwise. That is, even if the installation environment in which the faucet (10) is installed is different, the user can be provided with the operating direction of the control knob (300) that is generally familiar to the user.

[0222] Referring to the structure in FIG. 20, FIG. 20 illustrates the switching valve device (240) arranged in a symmetrical form compared to FIG. 19. Here, a symmetrical form means that the switching valve device (240) is in a rotated state. After the switching valve device (240) is separated from the first mounting part (122) in the state of FIG. 19, if it is mounted back onto the first mounting part (122) in a state rotated 180 degrees, it can be in the state shown in FIG. 20. In this case, the first switching path (243) is connected to the second inflow path (P1b), and the second switching path (245) is connected to the first inflow path (P1a). That is, the switching valve device (240) is connected to the path guide unit (100) in the opposite way to FIG. 19.

[0223] More specifically, the first switching channel (243) in a protruding shape connects the second inlet channel (P1b) and the first side permeable section (141a). The second switching channel (245) in a relatively recessed shape connects the first inlet channel (P1a) and the second mixing channel. In this way, the inlet paths of cold water and hot water can be reversed. Therefore, even in an environment where hot water is supplied through the first inlet channel (P1a) and cold water is supplied through the second inlet channel (P1b), the user can use the faucet (10) in the same way. In FIG. 20, arrow ① represents the delivery path of cold water, and arrow ② represents the delivery path of hot water.

[0224] In this way, the first switching channel (243) can connect the first inflow channel (P1a) or the second inflow channel (P1b) with the first mixing channel (142a). The second switching channel (245) can connect the second inflow channel (P1b) or the first inflow channel (P1a) with the second mixing channel (142b). At this time, the positions of the first switching channel (243) and the second switching channel (245) are reversed in the first connection state and the second connection state. The specific structure of the switching valve device (240) for this purpose will be explained again below.

[0225] Referring to FIG. 21, the switching valve device (240) may be provided with a valve connecting part (242) that is coupled to the Euro guide unit (100). The valve connecting part (242) is provided around the edge of the valve body (241, 241') and may be connected to the first switching part connecting hole (122''). The valve connecting part (242) may have a roughly ring shape.

[0226] In this embodiment, the valve connecting part (242) has a left-right symmetrical structure with respect to a reference line extending in a direction orthogonal to the axial direction. In FIG. 21, K represents a vertical extension line orthogonal to the extension line (C) of the rotational axis direction. The valve connecting part (242) has a left-right symmetrical structure with respect to the vertical extension line (K). Accordingly, when the switching valve device (240) is rotated 180 degrees clockwise or counterclockwise, the switching valve device (240) has the same shape. As another example, the valve connecting part (242) may have an up-down symmetrical structure with respect to the center.

[0227] A plurality of valve fastening holes (242a) are opened in the valve fastening portion (242). When the fastening member (B2) is assembled into the valve fastening hole (242a), the switching valve device (240) can be fixed to the flow guide unit (100). The plurality of valve fastening holes (242a) are configured in an even number and can be arranged in a left-right symmetrical structure.

[0228] As shown in FIG. 21, when the switching valve device (240) is assembled to the flow guide unit (100), the switching valve device (240) is positioned in front of the first mounting part (122). At the same time, the switching valve device (240) can fix the fluid regulator (140) to the first mounting part (122). More precisely, the switching valve device (240) can be coupled with the fluid regulator (140) first, and then assembled together to the first mounting part (122) and fixed to the first mounting part (122). In this way, the switching valve device (240) and the fluid regulator (140) can form a single fluid control unit (TD) and can rotate together when switching between the first connection state and the second connection state. In this way, since the switching valve device (240) is mounted on the flow guide unit (100) together with the fluid regulator (140), the switching valve device (240) can serve as a kind of mounting bracket for mounting the fluid regulator (140) to the water supply. As a result, the installation of the fluid regulator (140) becomes easier, and the assembly process of the water supply system can be simplified.

[0229] Referring to FIG. 22, the switching valve device (240) is shown in a first connected state as in FIG. 19. When the fluid control unit (TD) is separated from the first mounting part (122), the open second temperature control connector (122b) and the third temperature control connector (122c) are exposed inside the first mounting part (122). In FIG. 22, the first temperature control connector (122a) is not visible due to the angle. The fluid regulator (140) is positioned inside the switching valve device (240), with the setting head part (147) protruding axially. In this state, when the fluid control unit (TD) is assembled to the first mounting part (122), the switching valve device (240) can transmit cold water and hot water between the flow guide unit (100) and the fluid regulator (140) through the switching flow path.

[0230] Referring to FIG. 23, the switching valve device (240) and the fluid regulator (140) constituting the fluid control unit (TD) are separated from each other. The first mixing path (142a) and the second mixing path (142b) of the fluid regulator (140) are placed in a control chamber (241a) formed in the center of the switching valve device (240) and are surrounded by the fluid regulator (140). When the fluid regulator (140) is inserted into the control chamber (241a) of the switching valve device (240) in the axial direction, the first mixing path (142a) and the second mixing path (142b) face the inner surface of the control chamber (241a).

[0231] Looking at the structure of the switching valve device (240), the switching valve device (240) includes a valve body (241, 241'). The valve body (241, 241') may have a roughly cylindrical shape that forms the framework of the switching valve device (240). At the center of the valve body (241, 241'), a control chamber (241a) with an axially penetrating shape is provided. When the fluid regulator (140) is inserted into the control chamber (241a), the first switching path (243) and the second switching path (245) may be connected to the first mixing path (142a) and the second mixing path (142b) of the fluid regulator (140). The fluid regulator (140) is positioned in the control chamber (241a), so that the switching valve device (240) and the fluid regulator (140) are concentric with each other. Additionally, the discharge path (P2) of the Euro guide unit (100), the center of rotation (C) of the fluid regulator (140), the control knob (300), and the center of rotation (C) of the switching valve device (240) are arranged to be concentric with each other. The discharge path (P2), the center of the fluid regulator (140), and the center of rotation (C) of the switching valve device (240) can be aligned while being concentric with each other.

[0232] The first switching path (243) and the second switching path (245) may be positioned on opposite sides of the control chamber (241a). Accordingly, when the switching valve device (240) is mounted in the opposite direction with its angle position changed, the positions of the first switching path (243) and the second switching path (245) may also be reversed with respect to the control chamber (241a).

[0233] In this embodiment, the valve body (241, 241') includes the first valve body (241) and the second valve body (241'). The first valve body (241) and the second valve body (241') may be spaced apart from each other in the axial direction. At this time, the first valve body (241) and the second valve body (241') are spaced apart to form a spaced-apart portion (244), and a connecting channel (244a) may be opened inside the spaced-apart portion (244) to connect the other end (243b, shown in FIG. 24) of the first switching path (243) and the outer surface of the fluid regulator (140). Through the connecting channel (244a), the first switching path (243) and the first mixing path (142a) are connected. A plurality of connection channels (244a) may be arranged around the inner circumference of the switching valve device (240). The spaced portion (244) may be viewed as a space created by inserting a mold core to form the connection channels (244a). The valve fastening portion (242) described above is provided in the first valve body (241).

[0234] An internal tapered portion (IT) may be provided in the control chamber (241a) of the switching valve device (240). The internal tapered portion (IT) is a part of the control chamber (241a) where the inner diameter is relatively narrow. The internal tapered portion (IT) has a structure that protrudes radially inward from the inner circumference of the control chamber (241a). The internal tapered portion (IT) is provided in the control chamber (241a) of the switching valve device (240) at a position offset forward from one end toward the first inflow path (P1a) and the second inflow path (P1b) with respect to the axial direction. In this way, the connecting channel (244a) is formed in the internal tapered portion (IT) where the inner diameter is relatively narrow. Accordingly, the connecting channel (244a) can be connected in a state of close contact with the first mixing path (142a).

[0235] Referring to FIG. 24, a first switching path (243) and a second switching path (245) are provided inside the switching valve device (240). The first switching path (243) is connected to the first mixing path (142a). The second switching path (245) is connected to the second mixing path (142b). The first switching path (243) and the second switching path (245) are connected to the first mixing path (142a) and the second mixing path (142b), respectively, when the switching valve device (240) is in the first connected state and when it is in the second connected state. Since the outlets of the first switching path (243) and the second switching path (245) are each opened at different locations along the extension direction of the rotation center (C), the path of the outlet does not change even when the switching valve device (240) is rotated. Here, the outlet refers to the part connected to the fluid regulator (140).

[0236] In contrast, the paths through which the inlet (243a) of the first switching path (243) and the inlet of the second switching path (245) are each connected to the path guide unit (100) may change according to the rotation angle of the switching valve device (240). The first switching path (243) is connected to the first inlet path (P1a) and the second inlet path (P1b) in the first connection state and the second connection state, respectively. The second switching path (245) is connected to the second inlet path (P1b) and the first inlet path (P1a) in the first connection state and the second connection state, respectively. At this time, the first switching path (243) and the second switching path (245) are positioned on opposite sides of the control chamber (241a), so that when the switching valve device (240) is rotated, their positions may be reversed.

[0237] Referring to FIGS. 24 and 25, the second switching path (245) can be seen as being formed in a space where the switching valve device (240) and the fluid regulator (140) are spaced apart from each other. The second switching path (245) may be formed in an empty space where a part of the second valve body (241') is recessed. Since the second switching path (245) is an empty space, it may be opened to the rear toward the path guide unit (100) and to the radial direction. However, the side facing forward is blocked by the inner tapered section (IT).

[0238] The second switching channel (245) with such an open structure is connected to the second inlet channel (P1b). The second switching channel (245) can be seen as being formed by the channel guide unit (100), the switching valve device (240), the fluid regulator (140), and the first mounting part (122). As shown in FIG. 19, the second switching channel (245) may be composed of an empty space surrounded by the channel guide unit (100), the switching valve device (240), the fluid regulator (140), and the first mounting part (122).

[0239] Thus, in this embodiment, the first switching channel (243) has a tube structure, whereas the second switching channel (245) is in the form of an empty space. One end (243a) of the first switching channel (243) is formed at a position protruding further with respect to the extension direction of the rotation center (C) than the one end of the second switching channel (245), and the other end (243b) of the first switching channel (243) is formed at a position protruding further with respect to the extension direction of the rotation center (C) than the other end of the second switching channel (245). As another example, the second switching channel (245) may be configured as a type of tube structure, similar to the first switching channel (243).

[0240] Referring to FIGS. 25 and 26, the switching valve device (240) is shown positioned at a first rotation angle for a first connection state and positioned at a second rotation angle for a second connection state, respectively. As such, when the switching valve device (240) rotates around the rotation center (C), it is possible to switch between the first connection state and the second connection state. In this embodiment, the fluid control unit (TD), composed of the switching valve device (240) and the fluid regulator (140), rotates together.

[0241] More precisely, the fluid control unit (TD) is assembled first, and the fluid control unit (TD) is assembled to the first mounting part (122) to have the first connection state or the second connection state. At this time, the fluid control unit (TD) can be fixed to the flow guide unit (100) by fastening the fastener (B2). Then, to switch the connection state, the fluid control unit (TD) can be separated from the flow guide unit (100) first, and then reassembled to the flow guide unit (100) in a rotated state. In this embodiment, the angular displacement of the fluid control unit (TD) is 180 degrees. As another example, the angular displacement of the fluid control unit (TD) for switching the connection state may be 90 degrees, 120 degrees, etc.

[0242] Referring to FIG. 25, the switching valve device (240) may be provided with a mounting spacer (247). The mounting spacer (247) protrudes from the switching valve device (240) toward the first mounting portion (122) in the direction of the center of rotation. When the switching valve device (240) is mounted on the first mounting portion (122), the mounting spacer (247) fills the empty space between the first mounting space (122') and the switching valve device (240) and may be supported by the flow guide unit (100). Reference numeral 247a is a weight reduction space intended to reduce the weight of the switching valve device (240). As another example, the mounting spacer (247) may be omitted.

[0243] With reference to FIGS. 27 and 28, the flow of cold water and hot water circulating inside the fluid control unit (TD) in the first connection state will be described. In the drawings, the flow of cold water is indicated by arrow ①, and the flow of hot water is indicated by arrow ②. Arrow ③ indicates the direction of rotation for switching the connection state of the fluid control unit (TD). First, looking at the flow of cold water, the cold water is introduced through the first switching channel (243). One end of the first switching channel (243) is an inlet, and cold water is delivered from the first temperature control connector (122a, not shown in FIG. 25).

[0244] Cold water passing through the first switching channel (243) can exit to the separation section (244) through the other end (243b) of the first switching channel (243). Of course, since the separation section (244) is surrounded by the first mounting section (122), cold water does not leak to the outside and can flow along the separation section (244). Cold water can flow into the first mixing channel (142a) through the connecting channel (244a) formed in the separation section (244). In FIG. 28, arrow ①' indicates the direction of cold water flowing into the first mixing channel (142a).

[0245] Looking at the flow of hot water, the fluid control unit (TD) receives hot water from the second temperature control connector (122b, not shown in FIG. 25). After the hot water flows into the second switching channel (245), it can immediately flow into the second mixing channel (142b). This is because the second mixing channel (142b) is open to the outer surface of the fluid controller (140), and the outer surface of the fluid controller (140) forming the second mixing channel (142b) faces the second switching channel (245). More precisely, since the outer surface of the fluid controller (140) forming the second mixing channel (142b) defines a part of the second switching channel (245), the hot water can be directly transferred from the second switching channel (245) to the second mixing channel (142b).

[0246] Thus, in this embodiment, the first switching channel (243) and the second switching channel (245) are connected to the first mixing channel (142a) and the second mixing channel (142b) in a direction different from the extension direction of the rotation center (C). Here, the extension direction of the rotation center (C) is the front-rear direction, and the direction different from the extension direction of the rotation center (C) is the radial direction.

[0247] As shown in FIGS. 19 and 20 above, even when the switching valve device (240) is rotated to switch from a first connection state to a second connection state, the other end (outlet, 243b) of the first switching path (243) remains connected to the first mixing path (142a), and the other end (outlet) of the second switching path (245) remains connected to the second mixing path (142b). However, only the temperature control connectors (122a, 122b) connected to the one end (243a) of the first switching path (243) and the open inlet of the second switching path (245) are switched. When viewed from the perspective of the fluid regulator (140), the cold water delivered to the fluid regulator (140) always passes through the first mixing path (142a), and the hot water always passes through the second mixing path (142b). Therefore, the direction in which the user controls the water temperature can be maintained in the direction in which the fluid regulator (140) and the control knob (300) are designed.

[0248] To summarize, (i) in the first connection state, both ends of the first switching channel (243) are connected to the first inflow channel (P1a) and the first mixing channel (142a), respectively, and in the second connection state, both ends are connected to the second inflow channel (P1b) and the first mixing channel (142a), respectively, and (ii) in the first connection state, both ends of the second switching channel (245) are connected to the second inflow channel (P1b) and the second mixing channel (142b), respectively, and in the second connection state, both ends are connected to the first inflow channel (P1a) and the second mixing channel (142b), respectively.

[0249] Thus, in the present embodiment, the switching valve device (240) is connected to the inlet flow path at a first angle position in a first connection state and can guide cold water and hot water to a first delivery path and a second delivery path, respectively. In a second connection state in which the switching valve device (240) is rotated with the rotation axis as the center of rotation, it is connected to the inlet flow path at a second angle position different from the first angle position and can guide cold water and hot water to a second delivery path and a first delivery path, respectively.

[0250] As shown in FIG. 29, a separate water outlet selector may be omitted in the faucet of the present invention. In this case, water may be discharged only through a single outlet section, or the water outlet selector may be provided externally. As shown in FIG. 30, the water outlet selector, the flow rate regulator, and the second control knob may be omitted in the faucet of the present invention. In this case, the user can control both the temperature and the flow rate using a single control knob (300). Alternatively, the control knob (300) may provide only the temperature control function, and the device for controlling the flow rate may be provided externally.

[0251] Although not illustrated, the switching valve device (240) may be provided with a plurality of switching passages having different diameters. For example, the plurality of switching passages may consist of a total of four switching passages. The plurality of switching passages are arranged to have different phases along the circumferential direction relative to the center of the switching valve device (240). Here, different phases refer to different angular positions formed along the circumferential direction relative to the rotation center of the switching valve device (240). At this time, in the first connection state, one of the switching passages among the plurality of switching passages may be connected to the first inlet passage (P1a), and in the second connection state, another switching passage among the plurality of switching passages may be connected to the first inlet passage (P1a). The first connection state and the second connection state may have a phase difference of 90 degrees from each other. In addition, the switching valve device (240) may include a third connection state and a fourth connection state.

[0252] Although not illustrated, the above-mentioned Euro guide unit (100) may be integrally provided with the above-mentioned casing (20). That is, the above-mentioned Euro guide unit (100) becomes part of the above-mentioned casing (20). As another example, the above-mentioned casing (20) may be omitted, and the above-mentioned Euro guide unit (100) itself may form the frame of the faucet (10).

[0253] In the preceding embodiment, the fluid regulator (140) was described as having the role of mixing cold water and hot water, but otherwise, the fluid regulator (140) may have the role of mixing raw water and purified water, or mixing two fluids with different components.

[0254] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

Claims

1. Casing defining a first inlet channel and a second inlet channel; A fluid regulator that defines a first mixing channel and a second mixing channel, and controls the mixing amount of different fluids supplied from the first inlet channel and the second inlet channel; and A switching valve device coupled to the fluid regulator and capable of being positioned in the casing at a plurality of angular positions based on a rotation center formed along the direction of coupling with the fluid regulator; comprising The above switching valve device A first connection state disposed in the casing at a first angle position and connecting the first inlet channel and the second inlet channel to the first mixing channel and the second mixing channel, respectively, and A water supply having a second connection state that is positioned in the casing at a second angle position rotated from the first angle position with respect to the center of rotation, and which connects the second inlet channel and the first inlet channel to the first mixing channel and the second mixing channel, respectively.

2. In claim 1, the switching valve device A first switching channel connecting the first inlet channel or the second inlet channel and the first mixing channel; and It includes the second inlet channel or a second switching channel connecting the first inlet channel and the second mixing channel; A water supply in which the positions of the first switching path and the second switching path are swapped with each other in the first connection state and the second connection state.

3. In claim 1, the switching valve device A first switching path in which the outlet in the first connection state and the second connection state is connected to the first mixing path; and A water supply comprising: a second switching channel in which the outlet is connected to the second mixing channel in the first connection state and the second connection state.

4. In claim 1, the switching valve device A first switching channel in which both ends are respectively connected to the first inlet channel and the first mixing channel in the first connection state, and both ends are respectively connected to the second inlet channel and the first mixing channel in the second connection state; and A water supply comprising: a second switching channel, wherein both ends are respectively connected to the second inlet channel and the second mixing channel in the first connection state, and both ends are respectively connected to the first inlet channel and the second mixing channel in the second connection state.

5. In claim 1, a control chamber extending along the rotation center direction is formed at the center of the switching valve device, and The above fluid regulator is placed in the control chamber, and A receiving chamber in which a portion of the first switching path is opened to face the first mixing path of the fluid regulator.

6. In claim 5, the control chamber has an internal tapered portion protruding radially inward, and The inner tapered portion surrounds the first mixing channel of the fluid regulator, and A faucet in which the outlet of the first switching path facing the first mixing path is opened in the inner tapered portion.

7. The invention of claim 1 further comprises a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered, and A water supply in which the discharge path, the center of the fluid regulator, and the rotational center of the switching valve device are aligned concentrically with each other.

8. In claim 1, the inlet of the first switching channel connected to the first inlet channel or the second inlet channel is open in the direction in which the center of rotation is extended, and The above switching valve device is equipped with a first switching path and a second switching path, and The outlet of the first switching path connected to the first mixing path is a water supply that opens in a direction different from the direction of the rotation center.

9. The invention of claim 1 further comprises a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered, and The above switching valve device is equipped with a first switching path and a second switching path, and The above second switching path is a receiving path defined by the switching valve device, the path guide unit, and the fluid regulator.

10. In claim 1, the switching valve device comprises a first switching path and a second switching path whose positions are reversed with respect to the first connection state and the second connection state, and One end of the first switching channel is formed at a position protruding further with respect to the rotation center direction than one end of the second switching channel, and A water supply formed at a position that protrudes further with respect to the rotation center direction than at the other end of the first switching channel.

11. In claim 1, the switching valve device comprises a first switching path and a second switching path connected in the direction of the rotation center to the first inlet path and the second inlet path, and The first switching channel and the second switching channel are connected to the first mixing channel and the second mixing channel in a direction different from the rotation center direction.

12. In claim 1, the inlet of the first mixing channel is formed along the first outer surface of the fluid regulator, and the inlet of the second mixing channel is formed along the second outer surface of the fluid regulator, and The above switching valve device A first switching channel, one end of which is connected to the first inflow channel or the second inflow channel, and the other end of which is connected to the first outer surface; and A water supply comprising: a second switching channel, wherein one end is connected to the second inlet channel or the first inlet channel, and the other end is connected to the second outer surface.

13. In claim 12, the other end of the first switching channel and the other end of the second switching channel are spaced apart from each other along the rotation center direction.

14. In claim 12, the other end of the first switching path extends along the circumferential direction of the switching valve device.

15. In claim 12, the second switching path is formed in a space where the switching valve device and the fluid regulator are spaced apart from each other.

16. The invention of claim 1 further comprises a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered, and The above switching valve device is a water supply coupled to the above Euro guide unit.

17. The invention of claim 1 further comprises a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered, and The above Euro guide unit is provided with a regulator mounting portion protruding in the direction of the rotation center, and The above switching valve device and the above fluid regulator are a water supply fixed to the regulator mounting part.

18. The invention of claim 1 further comprises a flow guide unit disposed in the casing and defining the first inlet flow path, the second inlet flow path, and the discharge flow path through which the mixed fluid discharged from the fluid regulator is delivered, and The above switching valve device is a receiving device that defines a switching path connected to the fluid regulator together with the above-mentioned fluid guide unit.

19. The invention of claim 1 further comprises a flow guide unit disposed in the casing and defining the first inlet flow path and the second inlet flow path, and The above switching valve device is provided with a valve coupling part coupled to the above flow guide unit, and The above valve connecting part is a faucet having a left-right symmetrical structure or an up-down symmetrical structure with respect to a reference line extended in a direction orthogonal to the direction of the rotation center.

20. A Euro guide unit defining the first inflow Euro and the second inflow Euro; A fluid regulator that defines a first mixing channel and a second mixing channel, and controls the mixing amount of different fluids supplied from the first inlet channel and the second inlet channel; and A switching valve device connected to the Euro guide unit with the fluid regulator in between; comprising The above switching valve device A first connection state connected to the Euro guide unit at a first angle position and connecting the first inlet flow path and the second inlet flow path to the first mixing flow path and the second mixing flow path, respectively, and A water supply having a second connection state that is connected to the Euro guide unit at a second angle position rotated from the first angle position, and connects the second inlet flow path and the first inlet flow path to the first mixing flow path and the second mixing flow path, respectively.

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