Water softener and waterway switching valve thereof

Abstract

The utility model relates to the technical field of water softeners, particularly provides a water softener and a waterway switching valve thereof, and aims to solve the problem that a water inlet interface and a water outlet interface on the waterway switching valve of the conventional water softener cannot meet the mounting requirements of different mounting spaces. In order to achieve the purpose, the waterway switching valve of the water softener comprises a valve body, a first side portion of the valve body is provided with a resin tank connector used for being connected with a resin tank, and the valve body is provided with a first water inlet connector, a second water inlet connector, a first water outlet connector and a second water outlet connector, the first water inlet connector and the second water inlet connector are communicated with a water inlet channel in the valve body, the first water inlet connector and the second water inlet connector can be selectively communicated with a water inlet pipe, the first water outlet connector and the second water outlet connector are communicated with a water outlet channel in the valve body, and the first water outlet connector and the second water outlet connector can be selectively communicated with a water outlet pipe. Therefore, the installation requirements of different installation spaces can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of water softeners, and specifically provides a water softener and a water channel switching valve thereof. Background Art

[0002] With the continuous improvement of people's living standards and the increasing attention to healthy water use, water softeners have gradually become a common appliance in more and more households.

[0003] Usually, a water softener includes a resin tank, the upper end of which has an opening, which is connected to the lower interface of the water circuit switching valve, and the water circuit switching valve is provided with a water inlet interface and a water outlet interface toward the rear side of the water softener, and the water inlet interface and the water outlet interface are used to connect the water inlet pipe and the water outlet pipe respectively. However, in the daily installation process, there are cases where the water inlet pipe and the water outlet pipe are distributed on the left or right side of the installation space, which is not convenient for the water inlet interface and the water outlet interface to be connected to the water inlet pipe and the water outlet pipe respectively; in addition, there is a case where the size of the installation space in the front-to-back direction is exactly the same as the size of the water softener in the front-to-back direction, and the water inlet pipe and the water outlet pipe are provided on the rear side of the installation space, and the water inlet pipe and the water outlet pipe occupy a part of the installation space, resulting in the water softener cannot be completely placed in the installation space, affecting the installation of the water softener.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, namely, to solve the problem that the water inlet interface and the water outlet interface on the water circuit switching valve of the existing water softener cannot meet the installation requirements of different installation spaces.

[0006] In a first aspect, the utility model provides a water circuit switching valve for a water softener, the water circuit switching valve comprising a valve body, a first side portion of the valve body being provided with a resin tank interface, the resin tank interface being used to connect a resin tank, the valve body being provided with a first water inlet interface and a second water inlet interface located on different sides and a first water outlet interface and a second water outlet interface located on different sides, the first water inlet interface and the second water inlet interface being connected to a water inlet channel in the valve body, the first water inlet interface and the second water inlet interface being able to selectively connect to a water inlet pipe, the first water outlet interface and the second water outlet interface being connected to a water outlet channel in the valve body, the first water outlet interface and the second water outlet interface being able to selectively connect to a water outlet pipe.

[0007] In the preferred technical solution of the above-mentioned water circuit switching valve, the first water inlet interface, the second water inlet interface, the first water outlet interface and the second water outlet interface are configured with blocking parts, and the blocking parts are used to block the water inlet interface not connected to the water inlet pipe and the water outlet interface not connected to the water outlet pipe.

[0008] In the preferred technical solution of the above-mentioned water circuit switching valve, the first water inlet interface and the first water outlet interface are located on the same side of the valve body, and / or the second water inlet interface and the second water outlet interface are located on the same side of the valve body.

[0009] In the preferred technical solution of the above-mentioned water circuit switching valve, the axis of the first water inlet interface, the axis of the second water inlet interface, the axis of the first water outlet interface and the axis of the second water outlet interface are parallel to the same plane, and the axis of the resin tank interface is perpendicular to the plane.

[0010] In the preferred technical solution of the above-mentioned water circuit switching valve, the valve body is provided with a first wastewater interface and a second wastewater interface located on different sides, the first wastewater interface and the second wastewater interface are connected to the wastewater channel in the valve body, and the first wastewater interface and the second wastewater interface can be selectively connected to the wastewater pipe.

[0011] In the preferred technical solution of the above-mentioned water channel switching valve, an exposed mounting position is provided on the valve body, and the mounting position is detachably connected to the ejector.

[0012] In the preferred technical solution of the above-mentioned waterway switching valve, the ejector is provided with a filter structure, and the filter structure is used to filter the liquid entering the ejector.

[0013] In the preferred technical solution of the above-mentioned water channel switching valve, the water channel switching valve has a salt inlet channel connected to the inlet of the resin tank, and electrodes are arranged in the salt inlet channel to electrolyze the salt water flowing through the salt inlet channel to produce hypochlorous acid.

[0014] In the preferred technical solution of the waterway switching valve, the waterway switching valve has a salt inlet channel connected to the inlet of the resin tank, and a salt concentration detection electrode is arranged in the salt inlet channel to detect the salt concentration of the brine flowing through the salt inlet channel.

[0015] When adopting the above technical solution, the water circuit switching valve of the water softener includes a valve body, a first side of the valve body is provided with a resin tank interface, the resin tank interface is used to connect the resin tank, the valve body is provided with a first water inlet interface and a second water inlet interface located on different sides and a first water outlet interface and a second water outlet interface located on different sides, the first water inlet interface and the second water inlet interface are connected to the water inlet channel in the valve body, the first water inlet interface and the second water inlet interface can be selectively connected to the water inlet pipe, the first water outlet interface and the second water outlet interface are connected to the water outlet channel in the valve body, and the first water outlet interface and the second water outlet interface can be selectively connected to the water outlet pipe.

[0016] Through such a setting, the water circuit switching valve has at least two water inlet interfaces located on different sides and at least two water outlet interfaces located on different sides; when installing the water softener, the appropriate water inlet interface and water outlet interface can be selected according to the specific conditions of the installation space to connect to the water inlet pipe and the water outlet pipe respectively, thereby meeting the installation requirements of different installation spaces.

[0017] Preferably, the first water inlet interface and the first water outlet interface are located on the same side of the valve body, and / or the second water inlet interface and the second water outlet interface are located on the same side of the valve body.

[0018] Through such an arrangement, if the spatial dimensions of the installation space permit, the water inlet pipe and the water outlet pipe can be arranged on the same side of the installation space, which facilitates the arrangement and fixation of the pipes.

[0019] Preferably, the valve body is provided with a first wastewater interface and a second wastewater interface located on different sides, the first wastewater interface and the second wastewater interface are connected to the wastewater channel in the valve body, and the first wastewater interface and the second wastewater interface can be selectively connected to the wastewater pipe.

[0020] Through such an arrangement, it is possible to select a suitable wastewater interface to connect to the wastewater pipe according to the specific conditions of the installation space, thereby facilitating the arrangement of the wastewater pipe.

[0021] Preferably, an exposed mounting position is provided on the valve body, and the mounting position is detachably connected to the ejector.

[0022] Through such an arrangement, the ejector can be easily disassembled and assembled, which facilitates regular cleaning of the ejector and reduces maintenance costs.

[0023] Preferably, the ejector is provided with a filter structure, and the filter structure is used for filtering the liquid entering the ejector.

[0024] Through such a configuration, impurities in the water flow flowing into the ejector can be filtered, the risk of clogging of the ejector nozzle can be reduced, and the long-term stable operation of the ejector can be ensured. In addition, since the ejector can be detachably connected to the mounting position, it is also convenient to clean the impurities intercepted on the filter structure.

[0025] Preferably, the water channel switching valve has a salt inlet channel connected to the inlet of the resin tank, and electrodes are arranged in the salt inlet channel to electrolyze the salt water flowing through the salt inlet channel to generate hypochlorous acid.

[0026] With such a setting, after the electrodes are energized, the electrodes electrolyze the brine flowing through the salt inlet channel to produce hypochlorous acid. The produced hypochlorous acid can enter the resin tank along with the brine, sterilize and disinfect the resin tank, reduce the growth of bacteria in the resin tank, and ensure the cleanliness of the prepared soft water.

[0027] Preferably, the water channel switching valve has a salt inlet channel connected to the inlet of the resin tank, and a salt concentration detection electrode is arranged in the salt inlet channel to detect the salt concentration of the salt water flowing through the salt inlet channel.

[0028] Through such a setting, when the water softener is regenerating the resin, the controller of the water softener can detect the salt concentration of the brine flowing to the resin tank through the salt concentration detection electrode and calculate the salt absorption time and the regeneration time, and control the start and stop of the salt absorption operation and the regeneration operation according to the calculated salt absorption time and regeneration time, so as to avoid wasting regeneration salt, ensure the resin regeneration effect and avoid excessively long regeneration time.

[0029] In a second aspect, the utility model further provides a water softener, which comprises a water path switching valve according to any one of the above technical solutions.

[0030] It should be noted that the water softener has all the technical effects of the water circuit switching valve described in any of the above technical solutions, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0032] Figure 1 This is a schematic diagram of the structure of the water circuit switching valve of a water softener according to an embodiment of the utility model. Figure 1 ;

[0033] Figure 2 This is a schematic diagram of the structure of the water circuit switching valve of a water softener according to an embodiment of the utility model. Figure 2 ;

[0034] Figure 3 It is a schematic diagram of a state in which a water circuit switching valve of a water softener and an ejector and a residual chlorine generator thereon are disassembled;

[0035] Figure 4 yes Figure 3 A magnified view of the part A in the middle;

[0036] Figure 5 yes Figure 3 Enlarged view of part B in the middle.

[0037] List of reference numerals:

[0038] 1. Valve body; 11. Resin tank interface; 12. First water inlet interface; 13. Second water inlet interface; 14. First water outlet interface; 15. Second water outlet interface; 16. First wastewater interface; 17. Second wastewater interface; 18. First installation port; 19. Second installation port; 2. Drive unit; 21. Shell; 3. Ejector; 31. Mounting studs; 311. External thread; 32. Filter structure; 321. First tube body; 322. Grille hole; 33. Venturi tube; 331. Intake port; 4. Residual chlorine generator; 41. Second tube body; 42. Connection port; 43. Salt intake port; 44. Electrode. DETAILED DESCRIPTION

[0039] First, those skilled in the art should understand that the embodiments described below are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0040] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "front", "rear" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a direct connection, or an indirect connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Based on the problem mentioned in the background technology that the water inlet interface and the water outlet interface on the existing water softener water circuit switching valve cannot meet the installation requirements of different installation spaces, the utility model provides a water circuit switching valve for a water softener, the water circuit switching valve for the water softener includes a valve body, a resin tank interface is provided on the first side of the valve body, the resin tank interface is used to connect the resin tank, the valve body is provided with a first water inlet interface and a second water inlet interface located on different sides and a first water outlet interface and a second water outlet interface located on different sides, the first water inlet interface and the second water inlet interface are connected to the water inlet channel in the valve body, the first water inlet interface and the second water inlet interface can be selectively connected to the water inlet pipe, the first water outlet interface and the second water outlet interface are connected to the water outlet channel in the valve body, and the first water outlet interface and the second water outlet interface can be selectively connected to the water outlet pipe.

[0043] Through such a setting, the water circuit switching valve has at least two water inlet interfaces located on different sides and at least two water outlet interfaces located on different sides; when installing the water softener, the appropriate water inlet interface and water outlet interface can be selected according to the specific conditions of the installation space to connect to the water inlet pipe and the water outlet pipe respectively, thereby meeting the installation requirements of different installation spaces.

[0044] Refer to the following Figure 1 Hereinafter, the utility model will be described in detail. Figure 1 This is a schematic diagram of the structure of the water circuit switching valve of a water softener according to an embodiment of the utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the water circuit switching valve of a water softener according to an embodiment of the utility model. Figure 2 ; Figure 3 It is a schematic diagram of a state in which a water circuit switching valve of a water softener and an ejector and a residual chlorine generator thereon are disassembled; Figure 4 yes Figure 3 A magnified view of the part A in the middle; Figure 5 yes Figure 3 Enlarged view of part B in the middle.

[0045] like Figure 1As shown, the water circuit switching valve of the water softener includes a valve body 1, and a resin tank interface 11 is provided on the lower side of the valve body 1, and the axis of the resin tank interface 11 extends from top to bottom, and the resin tank interface 11 is used to connect the resin tank. Specifically, the resin tank interface 11 includes a first interface (not shown in the figure) and a second interface (not shown in the figure) arranged coaxially, the first interface is used to feed water into the resin tank, and the second interface is used to connect the central pipe in the resin tank so that the soft water flows outward through the central pipe. The right side of the valve body 1 is provided with a first water inlet interface 12, and the axis of the first water inlet interface 12 extends from left to right. The rear side of the valve body 1 is provided with a second water inlet interface 13 and a second water outlet interface 15, and the axis of the second water inlet interface 13 and the axis of the second water outlet interface 15 both extend from front to back. The left side of the valve body 1 is provided with a first water outlet interface 14, and the axis of the first water outlet interface 14 extends from right to left. The left side of the valve body 1 is also provided with a first wastewater interface 16, and the axis of the first wastewater interface 16 extends from right to left. The rear side of the valve body 1 is also provided with a second wastewater interface 17, and the axis of the second wastewater interface 17 extends from front to rear. The valve body 1 has a valve cavity (not shown in the figure), and a valve core (not shown in the figure) is provided in the valve cavity. The first water inlet interface 12, the second water inlet interface 13, the first water outlet interface 14, the second water outlet interface 15, the first wastewater interface 16 and the second wastewater interface 17 are respectively provided with a plugging member (not shown in the figure), and the plugging member is used to block the corresponding interface when the corresponding interface is not connected to the corresponding pipeline. The valve body 1 is also provided with an inlet channel (not shown in the figure), a water outlet channel (not shown in the figure), a resin tank inlet channel (not shown in the figure), a resin tank outlet channel (not shown in the figure) and a wastewater discharge channel (not shown in the figure) connected to the valve cavity. The first water inlet interface 12 and the second water inlet interface 13 are both connected to the water inlet channel, the first water outlet interface 14 and the second water outlet interface 15 are both connected to the water outlet channel, the first interface of the resin tank interface 11 is connected to the resin tank water inlet channel, the second interface of the resin tank interface 11 is connected to the resin tank water outlet channel, and the first wastewater interface 16 and the second wastewater interface 17 are both connected to the wastewater discharge channel. The front side of the valve body 1 is connected to the driving part 2, and the driving part 2 includes a shell 21, and a driving motor (not shown in the figure) is arranged in the shell 21. A first spur gear (not shown in the figure) is fixed on the output shaft of the driving motor. A screw rod coaxial with the driving motor is fixedly connected to one end of the valve core close to the driving motor, and a second spur gear (not shown in the figure) is fixed to the other end of the screw rod. The first spur gear and the second spur gear are meshed and connected, and the screw rod is threadedly connected to the valve body 1, so that the valve core moves along its axial direction during the rotation of the second spur gear, thereby realizing the water path switching of the water path switching valve.

[0046] When installing a water softener with the above-mentioned water circuit switching valve, according to the actual situation of the installation space, one of the first water inlet interface 12 and the second water inlet interface 13 is selected to be connected to the water inlet pipe, and the other of the first water inlet interface 12 and the second water inlet interface 13 is blocked by a blocking member, one of the first water outlet interface 14 and the second water outlet interface 15 is selected to be connected to the water outlet pipe, and the other of the first water outlet interface 14 and the second water outlet interface 15 is blocked by a blocking member, one of the first wastewater interface 16 and the second wastewater interface 17 is connected to the wastewater pipe, and the other of the first wastewater interface 16 and the second wastewater interface 17 is blocked by a blocking member.

[0047] For example, when the spatial dimensions of the installation space in the front-to-back direction do not meet the requirements for arranging the water inlet pipe and the water outlet pipe, but the spatial dimensions of the installation space in the left-to-right direction meet the requirements for arranging the water inlet pipe and the water outlet pipe, the water inlet pipe and the water outlet pipe are arranged on the right and left sides of the installation space respectively, and the wastewater pipe is arranged on the left side of the installation space. The first water inlet interface 12 is connected to the water inlet pipe, the second water inlet interface 13 is blocked by a blocking piece, the first water outlet interface 14 is connected to the water outlet pipe, the second water outlet interface 15 is blocked by a blocking piece, the first wastewater interface 16 is connected to the wastewater pipe, and the second wastewater interface 17 is blocked by a blocking piece.

[0048] For another example, when the spatial dimensions of the installation space in the left-right direction do not meet the requirements for arranging the water inlet pipe and the water outlet pipe, but the spatial dimensions of the installation space in the front-to-back direction meet the requirements for arranging the water inlet pipe and the water outlet pipe, the water inlet pipe and the water outlet pipe are arranged at the rear side of the installation space, the wastewater pipe is arranged at the rear side of the installation space, the second water inlet interface 13 is connected to the water inlet pipe, the first water inlet interface 12 is blocked by a blocking piece, the second water outlet interface 15 is connected to the water outlet pipe, the first water outlet interface 14 is blocked by a blocking piece, the second wastewater interface 17 is connected to the wastewater pipe, and the first wastewater interface 16 is blocked by a blocking piece.

[0049] Through the arrangement of the above-mentioned water circuit switching valve, when installing the water softener, the appropriate water inlet interface and water outlet interface can be selected according to the specific conditions of the installation space to connect with the water inlet pipe and the water outlet pipe respectively, so as to meet the installation requirements of different installation spaces. The first water inlet interface 12, the second water inlet interface 13, the first water outlet interface 14, the second water outlet interface 15, the first waste water interface 16, and the second waste water interface 17 are arranged on the sides of the valve body 1, which can make full use of the space around the valve body 1 and reduce the size of the valve body 1 in the vertical direction, thereby avoiding excessive waste of space in the vertical space of the water softener with the water circuit switching valve, making the overall structure of the water softener more compact. The driving motor cooperates with each other through the spur gear transmission mechanism and the threaded connection relationship between the screw rod and the valve body 1, shortening the axial stroke of the driving mechanism of the valve core of the water circuit switching valve, thereby reducing the volume of the driving part 2.

[0050] It should be noted that the first water inlet interface 12 and the first water outlet interface 14 are respectively arranged on the right side and the left side of the valve body 1, which is only a specific setting mode, and can be adjusted in actual application, such as the first water inlet interface 12 and the first water outlet interface 14 can be both arranged on the left side of the valve body 1. In addition, the first water inlet interface 12, the second water inlet interface 13, the first water outlet interface 14, the second water outlet interface 15, the first wastewater interface 16 and the second wastewater interface 17 are respectively provided with plugging parts, so that the corresponding interface is blocked by the plugging parts when the corresponding interface is not connected to the corresponding pipeline, which is also a specific setting mode, and can be adjusted in actual application, such as the first water inlet interface 12, the second water inlet interface 13, the first water outlet interface 14, the second water outlet interface 15, the first wastewater interface 16 and the second wastewater interface 17 are respectively provided with on-off valves, so that the connection between the interface and the outside is cut off by the on-off valve when the corresponding interface is not connected to the corresponding pipeline.

[0051] Figure 3 As shown, the right side and the upper side of the valve body 1 are respectively formed with an exposed first installation port 18 and a second installation port 19 , the first installation port 18 is detachably mounted with an ejector 3 , and the second installation port 19 is detachably mounted with a residual chlorine generator 4 .

[0052] like Figure 4 As shown, the ejector 3 includes a mounting stud 31, a filter structure 32 and a venturi tube 33. The filter structure 32 includes a first tube body 321. A plurality of grille holes 322 are formed on the side wall of the first tube body 321. The first end of the first tube body 321 is closed and connected to one end of the mounting stud 31. The second end of the first tube body 321 is connected to the first end of the venturi tube 33. The second end of the venturi tube 33 is open. A suction port 331 is formed on the side wall of the venturi tube 33. In the installed state, the filter structure 32 and the venturi tube 33 are inserted into the first mounting port 18, and the external thread 311 of the mounting stud 31 is tightened with the internal thread of the first mounting port 18, so that the ejector 3 is fixed to the first mounting port 18. In the state where the ejector 3 is installed to the first mounting port 18, the grille holes 322 are connected to the valve cavity, the outlet end of the venturi tube 33 is connected to the valve cavity, and the suction port 331 is connected to the second mounting port 19.

[0053] like Figure 3 and Figure 5As shown, the residual chlorine generator 4 includes an L-shaped second tube body 41, and two columnar electrodes 44 are pierced on the tube wall of the second tube body 41. The inner ends of the electrodes 44 extend into the second tube body 41, and the outer ends of the electrodes 44 are used to connect to the controller of the water softener through electric wires. The two ends of the second tube body 41 respectively form a connection port 42 and a salt absorption port 43. One end of the second tube body 41 forming the connection port 42 is detachably plugged into the second installation port 19 so that the connection port 42 is connected to the second installation port 19. The salt absorption port 43 is used to connect to the salt box of the water softener through a salt absorption pipe.

[0054] By switching the position of the valve core of the water circuit switching valve, the water inlet channel can be connected to the grille hole 322, and the outlet end of the venturi tube 33 can be connected to the water outlet channel. When the water inlet channel is connected to the grille hole 322, and the outlet end of the venturi tube 33 is connected to the water outlet channel, the channel in the second tube body 41, the channel between the second installation port 19 and the suction port 331, the channel between the suction port 331 and the outlet end of the venturi tube 33, and the channel between the outlet end of the venturi tube 33 and the outlet end of the water outlet channel are connected in sequence to form a salt inlet channel, and the water in the water inlet channel flows into the first tube body 321 from the grille hole 322 and then flows through the venturi tube 33 to form a high-speed water flow, and a low pressure is formed at the suction port 331. Under the action of the internal and external pressure difference, the salt water in the salt box can flow into the salt intake port 43 along the salt intake pipe, and then the salt water flows along the salt inlet channel, and the salt water is mixed with the high-speed water flow in the venturi tube 33 and flows into the resin tank through the water outlet channel. During this process, the controller of the water softener can apply voltage to the two electrodes 44. At this time, the electrodes 44 are used as discharge electrodes to electrolyze the salt water flowing through the inner end of the electrodes 44 to produce hypochlorous acid. The hypochlorous acid enters the resin tank together with the salt water, and can sterilize and disinfect the resin tank, reduce the growth of bacteria in the resin tank, and ensure the cleanliness of the prepared soft water; the controller of the water softener can also detect the conductivity of the salt water flowing through the two electrodes 44 (at this time, the electrodes 44 are used as salt concentration detection electrodes), and then calculate the salt concentration of the salt water, calculate the salt absorption time and the regeneration time according to the salt concentration, and control the start and stop of the salt absorption operation and the regeneration operation according to the calculated salt absorption time and regeneration time, so as to avoid wasting regeneration salt, ensure the resin regeneration effect and avoid excessive regeneration time.

[0055] When the ejector 3 needs to be cleaned, the valve body 1 does not need to be disassembled, and the ejector 3 can be conveniently cleaned by simply removing it from the first mounting opening 18. This arrangement facilitates regular cleaning of the ejector 3 and reduces maintenance costs.

[0056] The ejector of the existing water softener is usually fixed in the water circuit switching valve, and the ratio of salt water to water absorbed by the ejector is constant, and the concentration of the salt water entering the resin tank during the regeneration process is the same. After the water softener is used for the same length of time in different water quality areas, the amount of calcium and magnesium ions intercepted on the resin in the resin tank is different, and different concentrations of salt water are required to achieve resin regeneration during the resin regeneration process. The ejector of the existing water softener is not replaceable, and it cannot meet the resin regeneration requirements of the water softener when used in different water quality areas. Specifically, for areas with low water hardness, the salt water cannot be fully utilized, and the salt utilization rate is low. For areas with high water hardness, the salt water cannot meet the resin regeneration requirements. The utility model detachably mounts the ejector 3 to the first mounting port 18, and can replace the ejector of the corresponding model according to the installation area of ​​the water softener to meet the resin regeneration requirements of the water softener used in different water quality areas and improve the salt utilization rate.

[0057] By setting the filter structure 32, impurities in the water flowing into the ejector 3 can be filtered, reducing the risk of clogging of the nozzle of the ejector 3, and ensuring the long-term stable operation of the ejector 3. In addition, since the ejector 3 is detachably connected to the first mounting port 18, it is also convenient to clean the impurities intercepted by the filter structure 32.

[0058] One end of the second tube body 41 forming a connecting port 42 is detachably plugged into the second mounting port 19, and the electrode 44 is penetrated through the tube wall of the second tube body 41, which facilitates the setting of the electrode 44. The residual chlorine generator 4 with the electrode 44 can also be selectively installed on the water circuit switching valve according to the specific application scenario, and it is also convenient to replace the residual chlorine generator 4 that is aged and damaged.

[0059] In the existing water softener regeneration efficiency test process, the tester needs to collect the discharged water from the sewage outlet and use a salt concentration detection pen to detect the brine concentration, and then determine the relevant parameters of the resin tank regeneration process (such as salt absorption time, salt absorption speed, resin regeneration time, etc.) according to the brine concentration. However, due to the structural factors of the water circuit switching valve and the influence of the factor that the venturi tube has a certain brine ratio relationship during the salt absorption process, it is difficult to infer the molten salt situation of the salt box only by detecting the salt concentration of the sewage outlet, and it is impossible to judge whether the brine concentration has reached a saturated state. The relevant parameters of the resin tank regeneration process determined by the salt concentration at the sewage outlet are not accurate enough. In the utility model, by setting a salt concentration detection electrode in the salt inlet channel of the water circuit switching valve, during the water softener regeneration efficiency test, the tester only needs to use the salt concentration detection electrode on the water circuit switching valve of the water softener to easily obtain the salt concentration of the brine, and can determine more accurate relevant parameters of the resin tank regeneration process based on the salt concentration.

[0060] It should be noted that the electrode 44 in the above embodiment is used as both an electrode for electrolyzing salt water and an electrode for detecting salt concentration. This is only a more specific setting method, which can be adjusted in actual applications. For example, two pairs of electrodes can be pierced through the wall of the second tube body 41, one pair of electrodes is used as an electrode for electrolyzing salt water, and the other pair of electrodes is used as a salt concentration detection electrode. In addition, in another feasible embodiment, the above electrode 44 may not be set. In addition, the above electrode 44 may also be set at other parts of the salt inlet channel, for example, the inner end of the electrode 44 passes through the side wall of the valve body and extends into the water outlet channel and the inner end of the electrode 44 is located in the channel section between the outlet end of the water outlet channel and the outlet end of the first tube body, or the inner end of the electrode 44 passes through the side wall of the valve body and extends into the channel between the second installation port 19 and the suction port 331.

[0061] In another feasible embodiment, on the basis of the above embodiment, the valve body 1 is further provided with a third water inlet interface and a third water outlet interface, the second water inlet interface is arranged on the right side of the valve body 1 and the axis extends from left to right, and the third water outlet interface is arranged on the left side of the valve body 1 and the axis extends from right to left. The third water inlet interface is connected to the water inlet channel in the valve body 1, and the third water outlet interface is connected to the water outlet channel in the valve body 1. The third water inlet interface and the third water outlet interface are respectively provided with a plugging member, which is blocked by the plugging member when not connected to the corresponding pipe. Preferably, the valve body 1 is also provided with a third wastewater interface, and the third wastewater interface and the third water inlet interface or the third water outlet interface are arranged on the same side of the valve body 1. It should be noted that the positions of the third water inlet interface and the third water outlet interface can also be interchanged with each other; in addition, the third water inlet interface, the third water outlet interface, and the third wastewater interface can also be arranged on the upper side of the valve body 1.

[0062] In another feasible embodiment, only one wastewater interface is provided on the valve body 1 (for example, only the first wastewater interface 16 is provided or only the second wastewater interface 17 is provided). When only one wastewater interface is provided, the wastewater interface can be provided on the valve body 1 at the same side as the first water inlet interface 12 or the second water inlet interface 13.

[0063] In addition, the utility model also provides a water softener, which includes the water path switching valve of the water softener in any one of the above embodiments.

[0064] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, 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 fall within the protection scope of the present invention.

Claims

1. A water circuit switching valve for a water softener, characterized in that: The water circuit switching valve comprises a valve body, a first side portion of the valve body is provided with a resin tank interface, the resin tank interface is used to connect the resin tank, the valve body is provided with a first water inlet interface and a second water inlet interface located at different sides, and a first water outlet interface and a second water outlet interface located at different sides, The first water inlet interface and the second water inlet interface are connected to the water inlet channel in the valve body, and the first water inlet interface and the second water inlet interface can be selectively connected to the water inlet pipe. The first water outlet interface and the second water outlet interface are in communication with a water outlet channel in the valve body, and the first water outlet interface and the second water outlet interface can be selectively connected to a water outlet pipe.

2. The waterway switching valve according to claim 1, characterized in that: The first water inlet interface, the second water inlet interface, the first water outlet interface and the second water outlet interface are configured with blocking pieces, and the blocking pieces are used to block the water inlet interface that is not connected to the water inlet pipe and the water outlet interface that is not connected to the water outlet pipe.

3. The waterway switching valve according to claim 1, characterized in that: The first water inlet interface and the first water outlet interface are located on the same side of the valve body, and / or The second water inlet interface and the second water outlet interface are located on the same side of the valve body.

4. The waterway switching valve according to claim 1, characterized in that: The axis of the first water inlet interface, the axis of the second water inlet interface, the axis of the first water outlet interface and the axis of the second water outlet interface are parallel to the same plane, and the axis of the resin tank interface is perpendicular to the plane.

5. The waterway switching valve according to any one of claims 1 to 4, characterized in that: The valve body is provided with a first wastewater interface and a second wastewater interface located on different sides. The first wastewater interface and the second wastewater interface are connected to the wastewater channel in the valve body, and the first wastewater interface and the second wastewater interface can be selectively connected to the wastewater pipe.

6. The waterway switching valve according to any one of claims 1 to 4, characterized in that: The valve body is provided with an exposed mounting position, and the mounting position is detachably connected with an ejector.

7. The waterway switching valve according to claim 6, characterized in that: The ejector is provided with a filter structure, and the filter structure is used for filtering the liquid entering the ejector.

8. The waterway switching valve according to any one of claims 1 to 4, characterized in that: The water channel switching valve has a salt inlet channel connected to the inlet of the resin tank, and electrodes are arranged in the salt inlet channel to electrolyze the salt water flowing through the salt inlet channel to generate hypochlorous acid.

9. The waterway switching valve according to any one of claims 1 to 4, characterized in that: The water channel switching valve has a salt inlet channel connected to the inlet of the resin tank, and a salt concentration detection electrode is arranged in the salt inlet channel to detect the salt concentration of the salt water flowing through the salt inlet channel.

10. A water softener, characterized in that: The water softener comprises the water path switching valve of the water softener according to any one of claims 1 to 9.

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