Water mixing device and water softening equipment with same

Abstract

The utility model relates to the technical field of soft water preparation, particularly provides a water mixing device and water softening equipment with the water mixing device, and aims to solve the problems that in the prior art, a water softening machine is too complicated in structure, high in cost and the like due to a water mixing mode that a raw water branch is additionally arranged. In order to achieve the purpose, a first connector of a water mixing device is communicated with an external raw water source and an inlet of a water softening device, a second connector is communicated with an outlet of the water softening device, the first end of a water mixing channel in the water mixing device is communicated with the first connector, the second end of the water mixing channel is communicated with the second connector, and a water mixing valve is arranged on the water mixing channel. The water mixing valve is arranged to be capable of opening or blocking the water mixing channel. According to the water mixing device, the water mixing channel is formed in the water mixing device, the water mixing valve is arranged on the water mixing channel, no pipeline needs to be additionally arranged, the hardness of softened water flowing out of the water mixing device can be adjusted as required only by adjusting the opening degree of the water mixing valve, the equipment structure is simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of soft water preparation, and particularly provides a water mixing device and a soft water equipment with the water mixing device. Background Art

[0002] A water softener is usually used to soften raw water, and the softening by the water softener can significantly reduce the hardness of the raw water. However, the hardness of water in different regions is different, and the requirements for the hardness of softened water in different scenarios are also different.

[0003] Currently, it is usually to mix a part of the raw water into the softened water to obtain water with the required hardness. For example, an additional raw water branch is provided, and the raw water branch is connected to the softened water path connected to the outlet of the water softener, and an appropriate amount of raw water is mixed into the soft conversion water path through the raw water branch, so as to prepare water with the required hardness. However, this method requires a separate raw water branch, and in order to prevent the raw water from entering the softened water when water mixing is not required, a valve also needs to be provided on the raw water pipeline, resulting in a too complex structure of the water softener and a high cost.

[0004] Correspondingly, a new technical solution is needed in the art to solve the above problems. Summary of the Utility Model

[0005] The utility model aims to solve the above technical problems, that is, to solve the problems such as the too complex structure and high cost of the water softener caused by the water mixing method of additionally arranging a raw water branch in the prior art.

[0006] In a first aspect, the utility model provides a water mixing device for a soft water equipment. The soft water equipment includes a soft water device and a water mixing device. The soft water device is configured to be able to reduce the hardness of the raw water flowing through it and prepare pure soft water. The water mixing device has a first interface and a second interface. The first interface is connected to an external raw water source, the first interface is communicated with the inlet of the soft water device, and the second interface is communicated with the outlet of the soft water device.

[0007] A water mixing channel is arranged in the water mixing device. The first end of the water mixing channel is communicated with the first interface, the second end of the water mixing channel is communicated with the second interface, and a water mixing valve is arranged on the water mixing channel. The water mixing valve is configured to be able to open or block the water mixing channel.

[0008] In the preferred technical solution of the above-mentioned water mixing device, the water mixing device includes a valve cavity, the water mixing valve includes a power transmission mechanism and a blocking piece, the blocking piece is connected to the power transmission mechanism, at least a portion of the power transmission mechanism is arranged in the valve cavity, the blocking piece passes through the cavity wall of the valve cavity and extends into the water mixing channel, and the power transmission mechanism is configured to drive the blocking piece to perform linear motion so as to open or block the water mixing channel.

[0009] In the preferred technical solution of the above-mentioned water mixing device, the power transmission mechanism includes a power member and a transmission member, the transmission member is arranged in the valve cavity, the power output end of the power member extends into the valve cavity and is connected to the first end of the transmission member, the second end of the transmission member is connected to the blocking member, and the transmission member is configured to be able to drive the blocking member to perform linear movement under the action of the power member so as to open or block the water mixing channel.

[0010] In the preferred technical solution of the above-mentioned water mixing device, a first thread segment is provided on the transmission member, and a second thread segment is provided on the end of the sealing member away from the water mixing channel, and the first thread segment is matched with the second thread segment to connect the transmission member and the sealing member to each other.

[0011] In the preferred technical solution of the above-mentioned water mixing device, the transmission member is a nut, and the nut is sleeved on the power output end of the power member, the first thread segment is arranged on the outer wall of the nut, and the end of the sealing member facing away from the water mixing channel is provided with a mounting hole, and the second thread segment is arranged on the hole wall of the mounting hole, and the nut is connected to the sealing member through the cooperation of the first thread segment and the second thread segment.

[0012] In a preferred technical solution of the above water mixing device, the power member is connected to the transmission member in a detachable manner.

[0013] In a preferred technical solution of the above-mentioned water mixing device, the water mixing device further comprises a sealing member, which is arranged between the blocking member and the cavity wall of the valve cavity so as to prevent the water in the water mixing channel from flowing into the valve cavity.

[0014] In a preferred technical solution of the above-mentioned water mixing device, a groove is provided on the cavity wall, the groove is arranged along the circumference of the blocking member, and the sealing member is arranged in the groove.

[0015] In the technical solution of the present utility model, the soft water device includes a soft water unit and a water mixing unit. The first interface of the water mixing unit is respectively connected to an external raw water source and the inlet of the soft water unit, and the second interface of the water mixing unit is connected to the outlet of the soft water unit. When the soft water device is operating, the external raw water enters the soft water unit through the first interface and the inlet of the soft water unit. Under the action of the soft water unit, the hardness is reduced to form pure soft water, and then it is discharged through the outlet of the soft water unit and the second interface. A water mixing channel is provided in the water mixing unit. The first end of the water mixing channel is connected to the first interface, and the second end is connected to the second interface. A water mixing valve is provided on the water mixing channel, and this water mixing valve can open or block the water mixing channel. In this way, when the water mixing valve is closed, the water mixing channel is blocked, and the pure soft water coming out of the soft water unit directly discharges through the second interface; when the water mixing valve is opened, the water mixing channel is opened, and a part of the raw water entering the water mixing unit through the first interface can flow through the water mixing channel to the second interface and mix with the pure soft water coming from the soft water unit to form softened water. By adjusting the opening degree of the water mixing valve, the amount of raw water mixed into the pure soft water can be adjusted, and thus the hardness of the softened water discharged from the second interface can be adjusted. Through the setting of the water mixing unit of the present application, there is no need to separately set up pipelines. Only by forming a water mixing channel in the water mixing unit and then adjusting the opening degree of the water mixing valve on this water mixing channel, the hardness of the softened water coming out of the second interface of the water mixing unit can be adjusted, which simplifies the device structure and can better meet people's requirements for the hardness of softened water, and is applicable to scenarios of raw water with various different hardnesses.

[0016] Further, the water mixing unit includes a valve cavity. The water mixing valve includes a power transmission mechanism and a blocking member connected to the power transmission mechanism. At least a part of the power transmission mechanism is arranged in the valve cavity. The blocking member extends into the water mixing channel after passing through the wall of the valve cavity. The power transmission mechanism is arranged to be able to drive the blocking member to perform linear motion. In this way, when it is necessary to open the water mixing channel, under the driving action of the power transmission mechanism, the blocking member performs linear motion in a direction away from the water mixing channel to open the water mixing valve, and thus the water mixing channel is opened; when it is necessary to close the water mixing channel, under the driving action of the power transmission mechanism, the blocking member performs linear motion in a direction close to the water mixing channel to close the water mixing valve, and thus the water mixing channel is blocked. Through such a setting, there is no need for manual operation by the user. The power transmission mechanism can drive the blocking member to open or block the water mixing channel, achieving the purpose of adjusting the hardness of the softened water.

[0017] Further, the water mixing unit further includes a sealing member. This sealing member is arranged between the blocking member and the cavity wall of the valve cavity. Through the setting of this sealing member, the valve cavity can be isolated from the water mixing channel, blocking the water in the water mixing channel from flowing into the valve cavity and causing damage to the power transmission mechanism. Through such a setting, the sealing performance of the water mixing unit can be ensured, the water mixing valve can be prevented from being damaged, and the stable operation of the soft water device can be ensured.

[0018] In a second aspect, the present utility model further provides a water softening device, which includes the mixing device described in any of the foregoing solutions.

[0019] In a preferred technical solution of the above water softening device, the water softening device further includes a water leakage alarm device, the water leakage alarm device is electrically connected to the controller and the mixing valve of the mixing device respectively, the water leakage alarm device is configured to be able to issue an alarm when the water softening device leaks, and the controller is configured to be able to block the mixing valve after receiving the alarm issued by the water leakage alarm device.

[0020] It should be noted that the water softening device has all the technical effects of the foregoing mixing device, which will not be elaborated here. Description of the Drawings

[0021] The preferred embodiments of the present utility model will be described below with reference to the drawings. In the drawings:

[0022] Figure 1 is a structural diagram of a mixing device according to an embodiment of the present utility model;

[0023] Figure 2 is a sectional view (one) of a mixing device according to an embodiment of the present utility model;

[0024] Figure 3 is a sectional view (two) of a mixing device according to an embodiment of the present utility model.

[0025] List of reference numerals:

[0026] 1. First interface; 2. Second interface; 3. Third interface; 4. Fourth interface; 5. Water inlet channel; 6. Water outlet channel; 7. Mixing channel; 8. Mixing valve; 81. Driving motor; 82. Nut; 821. First thread section; 83. Sealing member; 831. First part; 8311. Second thread section; 832. Second part; 84. Sealing member; 9. Valve cavity; 91. First chamber; 92. Second chamber. Detailed Embodiments

[0027] The preferred embodiments of the present utility model will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0028] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "inner", "outer", "left", "right" are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In addition, it should also be noted that in the description of the present application, unless otherwise clearly specified and defined, the terms "connected" and "joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0030] Currently, usually by the way of additionally providing a raw water branch and connecting the raw water branch to the softening water path to achieve the purpose of adjusting the hardness of water. However, this way requires a separate setting of the raw water branch, and in order to prevent the raw water from entering the softened water when mixing water is not needed, a valve also needs to be provided on the raw water pipeline, resulting in a too complex structure of the water softener and a higher cost. Therefore, a mixing channel is provided in the mixing device of the present application, and a mixing valve is provided on the mixing channel. By adjusting the opening degree of the mixing valve, the hardness of the softened water coming out of the second interface of the mixing device can be adjusted, without the need for an additional pipeline, simplifying the equipment structure.

[0031] Such as Figures 1 to 3As shown, the soft water device is an ion exchange water softener, which includes a soft water device and a water mixing device. The soft water device includes a resin tank, and the resin tank includes a tank body and ion exchange resin arranged in the tank body. The ion exchange resin is used to adsorb calcium and magnesium ions in the raw water, reduce the hardness of the raw water, and achieve the purpose of softening the water quality. The water mixing device has a first interface 1, a second interface 2, a third interface 3, and a fourth interface 4. There is a water inlet channel 5 and a water outlet channel 6 in the water mixing device. The first interface 1 and the third interface 3 are respectively arranged at both ends of the water inlet channel 5, and the second interface 2 and the fourth interface 4 are respectively arranged at both ends of the water outlet channel 6. The tank body has an inlet and an outlet. The first interface 1 is connected to an external raw water source (such as a tap water pipe network, etc.) through a raw water waterway (not shown), the third interface 3 is connected to the inlet of the tank body through an inlet waterway (not shown), and the fourth interface 4 is connected to the outlet of the tank body through an outlet waterway (not shown). In this way, when the soft water device is operating, the external raw water enters the water inlet channel 5 of the water mixing device through the raw water waterway via the first interface 1, then enters the tank body through the third interface 3 and the inlet of the tank body. Under the action of the soft water resin, the calcium and magnesium ions in the raw water are absorbed, and the hardness of the raw water is reduced to form pure soft water. The pure soft water enters the water outlet channel 6 of the water mixing device through the outlet of the tank body, the outlet waterway, and the fourth interface 4, and then is discharged through the second interface 2. A water mixing channel 7 is also arranged in the water mixing device of the present utility model. The first end of the water mixing channel 7 (roughly the end near the first interface 1 in Figure 3 is communicated with the water inlet channel 5, and the second end (roughly the end near the second interface 2 in Figure 3 is communicated with the water outlet channel 6. That is to say, the first end of the water mixing channel 7 is communicated with the first interface 1, and the second end is communicated with the second interface 2. A water mixing valve 8 is arranged on the water mixing channel 7, and the water mixing valve 8 is arranged to be able to open or block the water mixing channel 7. When the water mixing valve 8 is closed, the water mixing channel 7 is blocked, and the pure soft water coming out of the soft water device enters the water outlet channel 6 of the water mixing device and is directly discharged through the second interface 2; when the water mixing valve 8 is opened, the water mixing channel 7 is opened, and a part of the raw water entering the water inlet channel 5 through the first interface 1 can also flow into the water outlet channel 6 through the water mixing channel 7 and be mixed with the pure soft water coming from the soft water device to form softened water. In this way, the softened water flowing out of the second interface 2 is the softened water after adjusting the hardness with the raw water. In this way, through the setting of the water mixing device of the present application, there is no need to separately set up pipelines. Only a water mixing channel 7 needs to be formed in the water mixing device, and then by adjusting the opening degree of the water mixing valve 8 on the water mixing channel 7, the amount of raw water mixed into the pure soft water can be adjusted, and further the hardness of the softened water flowing out of the second interface 2 can be adjusted to meet people's requirements for the hardness of the softened water, simplifying the structure of the soft water device. Even if the hardness of the raw water in the area where the soft water device is located changes, the requirements for the hardness of the softened water can be met by adjusting the opening degree of the water mixing valve 8, and it can be applicable to various scenarios.

[0032] In a possible implementation, when preparing softened water using the softened water device of the present application, the hardness of the softened water coming out of the second interface 2 can be adjusted by adjusting the opening degree of the mixing valve 8. For example, the opening degree of the valve can be adjusted according to the target hardness, the raw water hardness, and the raw water volume. A database is pre-constructed, which pre-stores the raw water hardness, the raw water volume, the valve opening degree, and the corresponding softened water hardness. The current raw water hardness and raw water volume are compared with the raw water hardness and raw water volume in the database, and at the same time, the target hardness is compared with the softened water hardness in the database. The valve opening degree corresponding to the successfully matched raw water hardness, raw water volume, and softened water hardness is determined as the final opening degree of the mixing valve 8. Another example is that the hardness of the softened water coming out of the second interface 2 can be monitored at any time. If the hardness is greater than the target hardness, the opening degree of the mixing valve 8 is reduced; if the hardness is less than the target hardness, the opening degree of the mixing valve 8 is increased, and so on.

[0033] Without departing from the basic principle of the present application, those skilled in the art can flexibly select the specific method of adjusting the opening degree of the mixing valve 8 according to the specific application scenario, as long as the hardness of the softened water coming out of the second interface 2 can reach the target hardness.

[0034] It should be noted that the softened water device can also be other possible types such as a reverse osmosis softened water machine, an electrolytic softened water machine, a magnetic softened water machine, etc. Taking the reverse osmosis softened water machine as an example of the softened water device, the softening device of the reverse osmosis softened water machine is a reverse osmosis membrane. When the raw water passes through the reverse osmosis membrane, the water molecules in the raw water can pass through the reverse osmosis membrane, while the metal ions, bacteria, viruses, impurities, etc. in the raw water are retained outside the membrane, thereby achieving the purpose of softening and purifying the water quality. Without departing from the basic principle of the present application, those skilled in the art can flexibly select the specific type of the softened water device according to the specific application scenario, as long as the purpose of softening the water quality can be achieved through it.

[0035] Such as Figures 1 to 3As shown in the figure, the mixing water device includes a valve chamber 9, and the valve chamber 9 includes a first chamber 91 and a second chamber 92 adjacent to each other. The mixing water valve 8 includes a power transmission mechanism and a plugging member 83. The power transmission mechanism includes a power member and a transmission member. The power member is a driving motor 81 disposed in the first chamber 91, and the transmission member is a nut 82 disposed in the second chamber 92. The power output end of the driving motor 81 passes through the first chamber wall between the first chamber 91 and the second chamber 92 and then extends into the second chamber 92. The nut 82 is sleeved on the power output end of the driving motor 81, and a first thread section 821 is provided on the outer wall of the nut 82. The plugging member 83 includes a first part 831 and a second part 832. Both the first part 831 and the second part 832 are generally cylindrical structures, and the outer diameter of the first part 831 is greater than the outer diameter of the second part 832. That is to say, the plugging member 83 is a structure with a large end and a small end composed of the first part 831 and the second part 832. The first part 831 is disposed in the second chamber 92, and a through hole is provided on the chamber wall of the second chamber 92 close to the mixing water channel 7. The second part 832 passes through the through hole and then extends into the mixing water channel 7. An installation hole is provided at the end of the first part 831 facing away from the mixing water channel 7 (roughly the Figure 3 left end of the first part 831 in the figure), and a second thread section 8311 is provided on the hole wall of the installation hole. The second thread section 8311 can be matched and connected with the first thread section 821, and the connection between the transmission member and the plugging member 83 is realized through the cooperation of the second thread section 8311 and the first thread section 821.

[0036] In this way, when it is necessary to open the mixing water channel 7, the driving motor 81 is operated to drive the nut 82 to rotate. Through the cooperation of the first thread section 821 on the nut 82 and the second thread section 8311 on the plugging member 83, the plugging member 83 is driven to move in a direction away from the mixing water channel 7 (roughly Figure 3 to the left in the figure) so as to open the mixing water valve 8, and then the mixing water channel 7 is opened; when it is necessary to close the mixing water channel 7, the driving motor 81 is operated to drive the nut 82 to rotate. Through the cooperation of the first thread section 821 on the nut 82 and the second thread section 8311 on the plugging member 83, the plugging member 83 is pushed to move in a direction close to the mixing water channel 7 (roughly Figure 3 to the right in the figure) so as to close the mixing water valve 8, and then the mixing water channel 7 is blocked. Through such a setting, without manual operation by the user, the plugging member 83 can be opened or the mixing water channel 7 can be blocked by the operation of the driving motor 81 and the driving of the transmission member, so as to achieve the purpose of adjusting the hardness of the softened water.

[0037] It should be noted that the first threaded section 821 may not be provided on the outer wall of the nut 82. Instead, the nut 82 is recessed inward at one end close to the plugging member 83 to form a recessed area, and the first threaded section 821 is provided on the side wall of the recessed area. In this case, the second threaded section 8311 is provided on the outer wall of the end of the first part 831 away from the mixing water channel 7. Of course, the transmission member can also be arranged in other possible forms. For example, the transmission member is a gear-rack pair. The gear of the gear-rack pair is connected to the power output end of the driving motor 81. The rack of the gear-rack pair has a first threaded section 821 that extends along the length direction of the rack. The second threaded section 8311 is provided on the side of the first part 831 of the plugging member 83 facing the rack. The part of the first threaded section 821 close to the driving motor 81 meshes with the gear, and the part close to the plugging member 83 meshes with the second threaded section 8311. Without departing from the basic principle of the present application, those skilled in the art can flexibly select the specific arrangement form of the transmission member as long as it can drive the plugging member 83 to move under the action of the power member.

[0038] It should be noted that the power member can also be other components capable of outputting power, such as an air pump, a cylinder, a hydraulic pump, a hydraulic cylinder, etc. Without departing from the basic principle of the present application, those skilled in the art can flexibly select the specific arrangement form of the power member as long as it can drive the transmission member and thus drive the plugging member 83 to move.

[0039] In a possible implementation manner, the driving motor 81 is detachably connected to the nut 82, that is to say, the driving motor 81 can be detached. In this way, when the driving motor 81 fails, the driving motor 81 can be detached, and the user or the maintenance personnel can use a conventional screwdriver or other suitable tools to reach into the second chamber 92 and rotate the nut 82, which can also drive the plugging member 83 to move and thus achieve the purpose of adjusting the opening degree of the mixing valve 8.

[0040] In a possible implementation manner, a pointer is provided on the power output shaft of the driving motor 81, and the pointer rotates as the driving motor 81 operates. A generally circular scale mark is provided between the first chamber 91 and the second chamber 92, and scale values are provided on the scale mark. During operation, the pointer pointing to different scale values indicates that the plugging member 83 is located at different positions, and the flow rate of the mixing water channel 7 is different accordingly, so that softened water of different hardness can be obtained. For example, 10 different numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 are arranged along the circumferential direction of the scale mark. When the pointer points to 0, it indicates that the plugging member 83 plugs the mixing water channel 7 and the soft water valve is closed. When the pointer points to any number from 1 to 9, the larger the number, the greater the opening degree of the plugging member 83, and the greater the hardness of the softened water coming out of the second interface 2.

[0041] It should be noted that the hardness of the softened water corresponding to different scale values can be pre-calculated and detected by R & D personnel or designers and stored in the background server, or recorded in the specification or operation manual. When the user needs softened water of a certain hardness, query the scale value corresponding to this hardness, and adjust the pointer to the corresponding scale value by driving the motor 81. Of course, the pointer can also be set on the nut 82. In this way, when the driving motor 81 runs, the pointer can also rotate accordingly. And when the driving motor 81 fails and is removed and the nut 82 is adjusted manually, the pointer can also rotate with the nut 82.

[0042] As Figures 1 to 3 shown, the mixing water device further includes a seal 84, and the seal 84 is an O-ring. A groove is provided on the inner wall of the through hole (that is, the wall of the second chamber 92 close to the mixing water channel 7), and the groove is arranged along the circumferential direction of the second part 832 of the plugging member 83. The seal 84 is arranged in this groove, so that the seal 84 is arranged between the plugging member 83 and the inner wall of the through hole, thereby being able to isolate the second chamber 92 from the mixing water channel 7 and prevent the water in the mixing water channel 7 from flowing into the second chamber 92 or even the first chamber 91 to damage the power member and the transmission member. Through such a setting, the sealing performance of the mixing water device can be ensured, the mixing water valve 8 can be avoided from being damaged, and the stable operation of the softened water equipment can be ensured.

[0043] It should be noted that the seal 84 can be a sealing ring made of rubber materials such as fluorosilicone rubber, nitrile rubber, silica gel, ethylene propylene diene monomer rubber, chloroprene rubber, or other possible materials such as engineering plastics and polyurethane. Of course, the seal 84 can also be a strip-shaped object with sealing performance such as a sealing strip and a cotton strip, and stuffing these strip-shaped objects in the groove can also play a sealing role.

[0044] It should be noted that a groove may not be provided on the inner wall of the through hole, but the sealing ring is directly arranged between the plugging member 83 and the inner wall of the through hole. Of course, the seal 84 may not be arranged between the plugging member 83 and the inner wall of the through hole. In this case, in order to ensure the sealing performance of the mixing water device, the plugging member 83 can be made of a material with certain elasticity so that the plugging member 83 is in close contact with the inner wall of the through hole. When the driving motor 81 runs, the plugging member 83 can not only make a linear motion driven by it, but also ensure the sealing performance of the mixing water device.

[0045] On the premise of not deviating from the basic principle of the present application, those skilled in the art can flexibly select the specific setting forms of the seal 84 and the groove as long as the sealing performance of the mixing water device can be ensured.

[0046] In a possible implementation, the soft water device further includes a controller and a water leakage alarm device. The water leakage alarm device is electrically connected to the controller and the mixing valve 8 respectively, and is configured to emit an alarm when water leakage occurs in the soft water device. Taking the water leakage alarm device as a water leakage alarm for example, the water leakage alarm includes a relay and a water leakage sensing rope. The water leakage sensing rope is laid around the soft water device. Once water leakage occurs in the soft water device, the water leakage sensing rope can detect it, and then output a water leakage signal through the relay. After receiving the water leakage signal, the controller controls the soft water device to close and simultaneously controls the mixing valve 8 to close, so that the soft water device can be completely closed, avoiding the raw water from flowing out through the mixing pipeline and the second interface 2 of the mixing device.

[0047] It should be noted that the water leakage alarm device can be electrically connected to the controller and the mixing valve 8 respectively through electric wires or wireless communication. Among them, the wireless communication can be realized through any one of communication methods based on Bluetooth, WiFi, Mesh, ZigBee, Thread, Z-Wave, NFC, Hilink, UWB, LiFi, etc.

[0048] It should be noted that the water leakage alarm device can also be of other types. For example, the water leakage alarm device includes a water immersion sensor. The water immersion sensor is arranged around the soft water device. Based on the principle of liquid conductivity, the water immersion sensor detects whether there is water around the soft water device through electrodes, and then converts it into a dry contact signal through the sensor and outputs it. Without departing from the basic principle of the present application, those skilled in the art can flexibly select the specific setting form of the water leakage alarm device according to the specific application scenario, as long as it can accurately detect whether the soft water device leaks water and emit an alarm when the soft water device leaks water. Obviously, the soft water device may not include a water leakage alarm device.

[0049] In summary, in the preferred technical solution of the present utility model, by providing a mixing channel 7 in the water mixing device, connecting the mixing channel 7 to the first interface 1 and the second interface 2 respectively, and providing a mixing valve 8 on the mixing channel 7, the mixing channel 7 can be blocked when the mixing valve 8 is closed, and the mixing channel 7 can be opened when the mixing valve 8 is opened so that part of the raw water can be mixed into the pure soft water to form softened water with a target hardness. There is no need to set up additional pipelines, and only by adjusting the opening degree of the mixing valve 8 can the hardness of the final softened water be adjusted. This simplifies the equipment structure, can better meet people's requirements for the hardness of softened water, and is applicable to scenarios with raw water of various different hardnesses. Through the setting of the power transmission mechanism and the blocking member 83 connected to each other, only by controlling the operation of the power transmission mechanism to drive the blocking member 83 to perform linear motion can the purpose of opening or blocking the mixing channel 7 be achieved. By providing a sealing member 84 between the second part 832 of the blocking member 83 and the inner wall of the through hole, and providing a groove on the inner wall of the through hole, the sealing performance of the water mixing device can be better ensured.

[0050] In addition, the present utility model also provides a soft water device, which includes the water mixing device described in any of the foregoing solutions.

[0051] It should be noted that this soft water device has all the technical effects of the foregoing water mixing device and will not be elaborated herein.

[0052] Of course, the above-mentioned replaceable embodiments, as well as between the replaceable embodiments and the preferred embodiments, can also be used in cross combination to combine new embodiments to be applicable to more specific application scenarios.

[0053] In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present utility model and forms different embodiments. For example, in the claims of the present utility model, any one of the claimed embodiments can be used in any combination.

[0054] So far, the technical solution of the present utility model has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A water mixing device for a water softening device, characterized in that: The water softening device comprises a water softening device and a water mixing device, wherein the water softening device is configured to reduce the hardness of raw water flowing therethrough and prepare pure soft water, and the water mixing device comprises a first interface and a second interface, wherein the first interface is connected to an external raw water source, the first interface is communicated with an inlet of the water softening device, and the second interface is communicated with an outlet of the water softening device. A water mixing channel is provided in the water mixing device, a first end of the water mixing channel is communicated with the first interface, a second end of the water mixing channel is communicated with the second interface, a water mixing valve is provided on the water mixing channel, and the water mixing valve is configured to open or block the water mixing channel.

2. The water mixing device according to claim 1, characterized in that: The water mixing device includes a valve cavity, and the water mixing valve includes a power transmission mechanism and a blocking piece. The blocking piece is connected to the power transmission mechanism, and at least a portion of the power transmission mechanism is arranged in the valve cavity. The blocking piece passes through the cavity wall of the valve cavity and extends into the water mixing channel. The power transmission mechanism is configured to drive the blocking piece to perform linear motion so as to open or block the water mixing channel.

3. The water mixing device according to claim 2, characterized in that: The power transmission mechanism includes a power member and a transmission member, the transmission member is arranged in the valve cavity, the power output end of the power member extends into the valve cavity and is connected to the first end of the transmission member, the second end of the transmission member is connected to the blocking member, and the transmission member is configured to be able to drive the blocking member to perform linear movement under the action of the power member so as to open or block the mixed water channel.

4. The water mixing device according to claim 3, characterized in that: The transmission member is provided with a first thread segment, and the end of the blocking member away from the water mixing channel is provided with a second thread segment, and the first thread segment is matched with the second thread segment to connect the transmission member and the blocking member to each other.

5. The water mixing device according to claim 4, characterized in that: The transmission member is a nut, which is sleeved on the power output end of the power member, the first thread segment is arranged on the outer wall of the nut, the end of the sealing member facing away from the mixed water channel is provided with a mounting hole, the second thread segment is arranged on the hole wall of the mounting hole, and the nut is connected to the sealing member through the cooperation of the first thread segment and the second thread segment.

6. The water mixing device according to claim 3, characterized in that: The power member is detachably connected to the transmission member.

7. The water mixing device according to any one of claims 2 to 6, characterized in that: The water mixing device further comprises a sealing member, which is arranged between the blocking member and the cavity wall of the valve cavity so as to prevent the water in the water mixing channel from flowing into the valve cavity.

8. The water mixing device according to claim 7, characterized in that: The cavity wall is provided with a groove, which is arranged along the circumference of the blocking member, and the sealing member is arranged in the groove.

9. A water softening device, characterized in that: The water softening device comprises the water mixing device according to any one of claims 1 to 8.

10. The water softening device according to claim 9, characterized in that: The water softening device also includes a water leakage alarm device and a controller. The water leakage alarm device is electrically connected to the controller and the mixing valve of the water mixing device respectively. The water leakage alarm device is configured to issue an alarm when a water leakage occurs in the water softening device. The controller is configured to close the mixing valve after receiving the alarm issued by the water leakage alarm device.

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