Waterway inspection organization and waterway system

Abstract

The embodiment of the present application discloses a waterway detection mechanism and a waterway system, wherein the waterway detection mechanism includes a detection channel, a detection unit disposed in the detection channel, and a switching mechanism having a filtered water port and a raw water port, wherein the filtered water port of the switching mechanism is used to communicate with the filtered water flow channel of the filter device, and the raw water port of the switching mechanism is used to communicate with the raw water flow channel of the filter device; the switching mechanism is used to control the flow rate of the flow channel between the detection channel and the raw water port, and / or, to control the flow rate of the flow channel between the detection channel and the filtered water port. The advantages of the above structure adopted in the embodiment of the present application are as follows: the present application adopts a detection unit to obtain the detection values ​​of the filtered water flow channel and the raw water flow channel respectively, thereby saving costs, simplifying the structure, and can also be used for abnormal reminders and detection value display, etc.; the present application can keep the detection unit in the filtered water environment for a long time, thereby avoiding the detection unit from being attached to colloids or rusting, which affects the detection accuracy.

Description

Technical Field

[0001] The present application relates to the field of water treatment, and in particular to a water channel detection mechanism and a water channel system. Background Art

[0002] The prior art discloses a waterway system, which includes a filter device and two detection units respectively arranged upstream and downstream of the filter device. The detection unit arranged upstream of the filter device can detect the raw water entering the filter device. The detection unit arranged downstream of the filter device can detect the filtered water passing through the filter device. Based on the detection results of the two detection units, the life of the filter device can be calculated, and it can also be judged whether there is an abnormality in the water in the waterway system.

[0003] However, it is obvious that the system structure is relatively complex and the cost is relatively high due to the two detection units. In addition, since the detection unit disposed upstream of the filter device is always in the raw water, the detection unit is more likely to be attached with colloid or rust, thereby affecting the detection accuracy.

[0004] The prior art also discloses a water system, which includes a filter device and a detection unit arranged upstream or downstream of the filter device. However, since the detection unit can only monitor raw water or filtered water, it is difficult for the detection unit to accurately estimate the life of the filter device. In addition, if the detection unit is arranged in raw water, the detection unit is more likely to be attached with colloids or rust, thereby affecting the detection accuracy. If the detection unit is arranged in filtered water, it is difficult for the detection unit to determine whether there is an abnormality in the water in the water system. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present application is to provide a water channel detection mechanism and a water channel system, which can solve at least one of the above-mentioned technical problems.

[0006] The embodiment of the present application also discloses a water channel detection mechanism, including a detection channel, a detection unit arranged in the detection channel, and a switching mechanism having a filtered water port and a raw water port, wherein the filtered water port of the switching mechanism is used to communicate with the filtered water flow channel of the filter device, and the raw water port of the switching mechanism is used to communicate with the raw water flow channel of the filter device;

[0007] The switching mechanism is used to control the flow rate of the flow channel between the detection channel and the raw water port, and / or to control the flow rate of the flow channel between the detection channel and the filtered water port.

[0008] Furthermore, the switching mechanism is used to control the on-off between the detection channel and the raw water port, and / or to control the on-off between the detection channel and the filtered water port.

[0009] Further, the detection channel is used to be located outside the raw water flow channel and the filtered water flow channel.

[0010] Furthermore, the detection channel has two openings, one of which is communicated with the filtered water port and the raw water port respectively, and the other opening of the detection channel is used to communicate with the raw water flow channel.

[0011] Furthermore, a one-way valve is provided at another opening of the detection channel, and the one-way valve can be connected to the raw water flow channel from the other opening of the detection channel.

[0012] Furthermore, the switching mechanism has at least two working positions. In the first working position, the detection channel and the raw water port are connected, and the detection channel and the filtered water port are disconnected. In the second working position, the detection channel and the raw water port are disconnected, and the detection channel and the filtered water port are connected.

[0013] Furthermore, the switching mechanism includes a piston, and the water pressure at the raw water port and the filtered water port can act on the force-bearing parts located on both sides of the piston respectively.

[0014] Further, the switching mechanism includes an elastic mechanism arranged on the piston.

[0015] Further, the elastic mechanism is arranged on the piston corresponding to one side of the filtered water port.

[0016] Furthermore, the switching mechanism includes a switching solenoid valve and a controller for controlling the switching solenoid valve, and the switching solenoid valve is used to control the flow of the raw water port and to control the flow of the filtered water port.

[0017] Furthermore, the detection channel is connected to the raw water port through a first channel; the detection channel is connected to the filtered water port through a second channel; the switching mechanism includes a first solenoid valve arranged in the first channel and used to control the first channel, and / or a second solenoid valve arranged in the second channel and used to control the second channel.

[0018] Furthermore, a detection passage is formed in the raw water flow channel; the switching mechanism includes a return water passage and a switching valve arranged on the return water passage, one end of the return water passage is connected to the filtered water flow channel, and the other end of the return water passage is connected to the raw water flow channel located upstream of the detection unit along the water flow direction; the switching valve is used to control the on and off of the return water passage.

[0019] The present application also discloses a waterway system, including:

[0020] A filtering device having a raw water inlet and a filtered water outlet;

[0021] A raw water flow channel, which is connected to a raw water inlet of the filtering device;

[0022] A filtered water flow channel, which is connected to a filtered water outlet of the filtering device;

[0023] Such as the waterway detection device mentioned above.

[0024] Furthermore, it includes: a booster pump arranged on the raw water flow channel and located upstream of the raw water inlet of the filtering device along the water flow direction. When the water system is in a water-using state, the booster pump can cause the piston to move in a first direction through the raw water flow channel, thereby connecting the raw water flow channel and the detection channel, and disconnecting the filtered water flow channel and the detection channel; after the water system stops using water, the booster pump can maintain a working state for a preset time, thereby causing the piston to move in a second direction opposite to the first direction through the filtered water flow channel, thereby disconnecting the raw water flow channel and the detection channel, and connecting the filtered water flow channel and the detection channel.

[0025] Furthermore, after the booster pump maintains the working state for a preset time, the detection channel can be filled with filtered water.

[0026] An embodiment of the present application also discloses a water channel detection mechanism, including a detection channel, a detection unit arranged in the detection channel, and a switching mechanism. The detection channel is used to be formed in a raw water flow channel; the switching mechanism includes a return water channel and a control valve arranged on the return water channel, one end of the return water channel is used to be connected to the filtered water flow channel, and the other end of the return water channel is connected to the detection channel; the control valve is used to control the flow of the return water channel.

[0027] The advantages of the above structure in the embodiment of the present application are as follows:

[0028] 1. This application uses one detection unit to obtain the detection values ​​of the filtered water flow channel and the raw water flow channel respectively, thereby saving costs, simplifying the structure, and can also be used for abnormal reminders and detection value display, etc.;

[0029] 2. The present application can keep the detection unit in a filtered water environment for a longer period of time, thereby preventing the detection unit from being attached with colloid or rusting, which would affect the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present application in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only for illustration purposes, and are used to help understand the present application, and are not intended to specifically limit the shapes and proportional dimensions of the various components of the present application. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present application according to the specific circumstances under the guidance of the present application.

[0031] Figure 1 The water channel detection mechanism in the embodiment of the present application is shown.

[0032] Figure 2The water system in an embodiment of the present application is shown in a working position.

[0033] Figure 3 The water system in another working position in the embodiment of the present application is shown.

[0034] Figure 4 A water channel detection mechanism in another embodiment of the present application is shown, wherein the switching mechanism includes a switching solenoid valve and a controller.

[0035] Figure 5 A water channel detection mechanism in another embodiment of the present application is shown, wherein the switching mechanism includes a first solenoid valve and a second solenoid valve.

[0036] Figure 6 A water channel detection mechanism in another embodiment of the present application is shown, wherein the switching mechanism includes a first solenoid valve.

[0037] Figure 7 A water channel detection mechanism in another embodiment of the present application is shown, wherein the switching mechanism includes a second solenoid valve.

[0038] Figure 8 A water channel detection mechanism in another embodiment of the present application is shown, wherein the detection channel is arranged in the raw water flow channel.

[0039] Fig. 9 A water channel detection mechanism in another embodiment of the present application is shown, wherein the booster pump is located between the other end of the return water channel and the detection channel.

[0040] The figure marks of the above drawings are: 1. detection channel; 2. detection unit; 3. switching mechanism; 4. filtered water port; 5. raw water port; 6. raw water flow channel; 7. filtered water flow channel; 8. opening; 9. one-way valve; 10. elastic mechanism; 11. switching solenoid valve; 12. controller; 13. first channel; 14. second channel; 15. first solenoid valve; 16. second solenoid valve; 17. return water passage; 18. control valve; 19. raw water inlet; 20. filtered water outlet; 21. piston; 22. force-bearing part; 23. booster pump; 24. water inlet solenoid valve; 25. pre-filter element; 26. combination valve; 27. high-pressure switch; 28. post-filter element; 29. ​​filtering device DETAILED DESCRIPTION

[0041] The details of the present application can be more clearly understood with reference to the accompanying drawings and the description of the specific embodiments of the present application. However, the specific embodiments of the present application described herein are only used to explain the purpose of the present application and cannot be understood as limiting the present application in any way. Under the guidance of the present application, technicians can conceive of any possible variations based on the present application, which should all be deemed to belong to the scope of the present application.

[0042] An embodiment of the present application discloses a water path detection mechanism, including a detection channel 1, a detection unit 2 arranged in the detection channel 1, and a switching mechanism 3 having a filtered water port 4 and a raw water port 5, wherein the filtered water port 4 of the switching mechanism 3 is used to communicate with the filtered water flow channel 7 of the filter device 29, and the raw water port 5 of the switching mechanism 3 is used to communicate with the raw water flow channel 6 of the filter device 29; the switching mechanism 3 is used to control the on-off connection between the detection channel 1 and the raw water port 5, and / or, to control the on-off connection between the detection channel 1 and the filtered water port 4.

[0043] By means of the above mechanism, by setting the switching mechanism 3, the detection channel 1 can switch between raw water and filtered water, so that when only one detection unit 2 is set, both raw water and filtered water can be detected.

[0044] Reference Figure 1 As shown, the embodiment of the present application discloses a water channel detection mechanism, including a detection channel 1, a detection unit 2 arranged in the detection channel 1, and a switching mechanism 3 having a filtered water port 4 and a raw water port 5. Among them, the raw water port 5 of the switching mechanism 3 can be connected to the raw water flow channel 6 of the filter device 29, so that raw water can be obtained from the raw water flow channel 6. The filtered water port 4 of the switching mechanism 3 can be connected to the filtered water flow channel 7 of the filter device 29, so that filtered water can be obtained from the filtered water flow channel 7.

[0045] In this embodiment, the detection channel 1 is located outside the raw water flow channel 6 and the filtered water flow channel 7. The inlet of the detection channel 1 (i.e., one of the openings 8 of the detection channel 1) can be connected to the raw water port 5 and the filtered water port 4 of the switching mechanism 3, respectively, to receive the raw water and filtered water flowing in from the raw water port 5 and the filtered water port 4, respectively.

[0046] The switching mechanism 3 includes a housing and a piston 21 disposed in the housing. One end face of the piston 21 (one of the force-bearing parts 22) corresponds to the raw water port 5, and the other end face (the other force-bearing part 22) corresponds to the filtered water port 4. When the pressure on one end face of the piston 21 is greater than the pressure on the pressure face on the other side of the piston 21, the piston 21 moves in a direction away from the raw water port 5 (i.e., toward the filtered water port 4) under the action of pressure, so that the raw water port 5 is connected to the detection channel 1, and the detection channel 1 and the filtered water port 4 are disconnected. In this state, there may be raw water in the detection channel 1, and the detection unit 2 can detect the raw water. When the pressure on the other end face of the piston 21 is greater than the pressure on one end face of the piston 21, the piston 21 moves in a direction away from the filtered water port 4 (i.e., toward the raw water port 5) under the action of pressure, so that the filtered water port 4 is connected to the detection channel 1, and the detection channel 1 and the raw water port 5 are disconnected. In this state, there may be filtered water in the detection channel 1, and the detection unit 2 may detect the filtered water. Based on the results of the two detections, the detection unit 2 may detect the life of the filter device 29.

[0047] Preferably, the outlet of the detection channel 1 is also connected to the raw water flow channel 6, so that the water in the detection channel 1 enters the raw water flow channel 6 again, so as to avoid setting up redundant water channels and avoid waste.

[0048] More preferably, a one-way valve 9 is also provided at the outlet of the detection channel 1 (i.e., another opening 8 of the detection channel 1), and the one-way valve 9 can only supply water from the outlet of the detection channel 1 to the raw water flow channel 6 to prevent water in the raw water flow channel 6 from flowing into the outlet of the detection channel 1, thereby affecting the detection result of the detection unit 2.

[0049] Reference Figure 2 and Figure 3 As shown, the embodiment of the present application discloses a waterway system, which includes the waterway detection mechanism in the previous embodiment, a filter device 29 (such as a reverse osmosis membrane device, a nanofiltration membrane device, etc.) having a raw water inlet 19 and a filtered water outlet 20, a raw water flow channel 6 connected to the raw water inlet 19 of the filter device 29, and a filtered water flow channel 7 connected to the filtered water outlet 20 of the filter device 29. In this embodiment, the waterway system also includes a booster pump 23 and an elastic mechanism 10. The booster pump 23 is arranged upstream of the raw water inlet 19 of the filter device 29. In this embodiment, the booster pump 23 is arranged on the raw water flow channel 6 and is located upstream of the raw water port 5 of the switching mechanism 3 along the water flow direction. In other optional embodiments, the booster pump 23 can also be arranged downstream of the switching mechanism 3, that is, between the switching mechanism 3 and the filter device 29. One end of the elastic mechanism 10 is connected to the end face of the piston 21 corresponding to the filtered water port 4, and the other end of the elastic mechanism 10 is connected to the housing.

[0050] When the water system is in a water-using state, that is, when the filtered water flow channel 7 of the filter device 29 discharges filtered water, that is, when the filtered water tap is opened to discharge filtered water, under the action of the booster pump 23, the pressure on the end face of the piston 21 facing the raw water port 5 is greater than the pressure on the end face of the piston 21 facing the filtered water port 4. At this time, the piston 21 moves in a direction away from the raw water port 5 (that is, in the direction towards the filtered water port 4), so that the raw water in the raw water flow channel 6 can enter the detection channel 1 from the raw water port 5 (such as Figure 2 As shown), and the elastic mechanism 10 can be compressed. Thus, the detection unit 2 can detect the raw water in the detection channel 1. When the water system is in a water-stopping state, that is, the filtered water faucet is closed and no filtered water is discharged to the outside, the booster pump 23 maintains the working state for a preset time (for example, 1 second), because the filtered water channel is in a closed state at this time. Therefore, the pressure on the end face of the piston 21 facing the filtered water port 4 increases, and under the joint action of the reset force of the elastic mechanism 10, it is greater than the pressure on the end face of the piston 21 facing the raw water port 5. At the same time, the piston 21 moves in a direction away from the filtered water port 4 (that is, in the direction toward the raw water port 5), so that the filtered water in the filtered water flow channel 7 can enter the detection channel 1 from the filtered water port 4 (as shown). Figure 3 As shown). When the booster pump 23 continues to run for a preset time (e.g., 1 second), all the raw water in the detection channel 1 is flushed away by the filtered water. At this time, the detection channel is filled with filtered water, so that the detection unit 2 can detect the filtered water in the detection channel 1. Therefore, when the booster pump 23 stops, the detection unit 2 in the detection channel 1 can be in a pure water environment all the time, thereby preventing colloid from adhering to the probe or rusting, thereby improving the detection accuracy.

[0051] In this embodiment, a water inlet solenoid valve 24 and a pre-filter element 25 are sequentially arranged upstream of the boost pump 23 along the water flow direction. The filter device 29 is a reverse osmosis membrane device, and a combination valve 26 is arranged at the wastewater outlet of the reverse osmosis membrane device. A one-way valve 9, a high-pressure switch 27 and a post-filter element 28 are also arranged on the filtered water flow channel 7 of the reverse osmosis membrane device. The filtered water port 4 of the waterway detection mechanism is connected to the high-pressure switch 27 and the post-filter element 28 on the filtered water flow channel 7. The optional connection between the filtered water port 4 and the filtered water flow channel 7 is not limited to this one place, and can also be connected between the filtered water outlet 20 and the one-way valve 9, or between the one-way valve 9 and the high-pressure switch 27, or downstream of the post-filter element.

[0052] In another optional embodiment, one end of the elastic mechanism 10 is connected to the end surface of the piston 21 corresponding to the raw water port 5, and the other end of the elastic mechanism 10 is connected to the housing. When the water system is in a water-using state, the elastic mechanism 10 is in an extended state.

[0053] The detection unit may be a TDS detection unit or a conductivity detection unit or other detection devices capable of detecting water quality.

[0054] The specific structure of the water channel detection mechanism in the water channel system in the embodiment of the present application can be referred to the above description and will not be repeated here.

[0055] Reference Figure 4 As shown, the embodiment of the present application also discloses a water channel detection mechanism, which includes a detection channel 1, a detection unit 2 arranged in the detection channel 1, and a switching mechanism 3 having a filtered water port 4 and a raw water port 5. Among them, the detection channel 1 is located outside the raw water flow channel 6 and the filtered water flow channel 7. The detection channel 1 is connected to the filtered water port 4 and the raw water port 5 respectively.

[0056] In this embodiment, the switching mechanism 3 may include a switching solenoid valve 11 and a controller 12 for controlling the switching solenoid valve 11. The controller 12 may switch the detection channel 1 between the raw water flow channel 6 and the filtered water flow channel 7 as needed. That is, the switching solenoid valve 11 may connect the detection channel 1 to the raw water port 5, and disconnect the detection channel 1 from the filtered water port 4. The switching solenoid valve 11 may also disconnect the detection channel 1 from the raw water port 5, and connect the detection channel 1 to the filtered water port 4. For example, the controller 12 may control the switching solenoid valve 11 so that the detection channel 1 is connected to the filtered water flow channel 7 most of the time, so that the detection unit 2 is in the filtered water environment most of the time, and the controller 12 may connect the raw water flow channel 6 to the raw water flow channel 6 at intervals as needed. Of course, in other optional embodiments, the controller 12 may control the switching solenoid valve 11 so that the detection channel 1 is connected to the raw water flow channel 6 most of the time, and the controller 12 may connect the raw water flow channel 6 to the filtered water flow channel 7 at intervals as needed. The solenoid valve 11 can also connect the raw water flow channel 6 and the detection channel 1 or the filtered water flow channel 7 and the detection channel 1 only when detection is required. When detection is not required, the detection channel 1 is disconnected from both the raw water flow channel 6 and the filtered water flow channel 7. Preferably, when detection is not required, filtered water is in the detection channel.

[0057] The embodiment of the present application also discloses a water channel detection mechanism, which includes a detection channel 1, a detection unit 2 arranged in the detection channel 1, and a switching mechanism 3 having a filtered water port 4 and a raw water port 5. Among them, the detection channel 1 is located outside the raw water flow channel 6 and the filtered water flow channel 7. The detection channel 1 is connected to the filtered water port 4 and the raw water port 5 respectively. The switching solenoid valve 11 is used to control the flow of the raw water port 5 and to control the flow of the filtered water port 4. The detection unit 2 can calculate the detection values ​​(such as TDS value) of the raw water flow channel 6 and the filtered water flow channel 7 based on the flow of the raw water port 5 and the flow of the filtered water port 4.

[0058] Reference Figure 5 As shown, the embodiment of the present application also discloses a water channel detection mechanism, which includes a detection channel 1, a detection unit 2 arranged in the detection channel 1, and a switching mechanism 3 having a filtered water port 4 and a raw water port 5. Among them, the detection channel 1 is located outside the raw water flow channel 6 and the filtered water flow channel 7. The detection channel 1 is connected to the raw water port 5 through the first channel 13; the detection channel 1 is connected to the filtered water port 4 through the second channel 14. The switching mechanism 3 includes a first solenoid valve 15 arranged in the first channel 13 and used to control the on-off of the first channel 13, and a second solenoid valve 16 arranged in the second channel 14 and used to control the on-off of the second channel 14.

[0059] When the first solenoid valve 15 is in an open state and the second solenoid valve 16 is in a closed state, there may be raw water in the detection channel 1, so that the detection unit 2 can detect the raw water. When the first solenoid valve 15 is in a closed state and the second solenoid valve 16 is in an open state, there may be filtered water in the detection channel 1, so that the detection unit 2 can detect the filtered water.

[0060] Different from the above embodiment, in this embodiment, the detection channel 1 may have a first opening, a second opening, and a third opening, wherein the first opening and the second opening are respectively connected to the filtered water port 4 and the raw water port 5, so as to respectively receive the filtered water flowing in from the filtered water flow channel 7 and the raw water flowing in from the raw water flow channel 6. The third opening can discharge the water in the detection channel 1. The third opening can be opened when necessary to allow raw water or filtered water to flow into the detection channel 1.

[0061] In another embodiment, the first solenoid valve 15 and / or the second solenoid valve 16 can respectively adjust the flow in the first channel 13 and the second channel 14. The detection unit 2 can calculate the detection values ​​of the raw water flow channel 6 and the filtered water flow channel 7 based on the flow of the filtered water port 4 and the raw water port 5.

[0062] Reference Figure 6As shown, the embodiment of the present application also discloses a water channel detection mechanism, which includes a detection channel 1, a detection unit 2 arranged in the detection channel 1, and a switching mechanism 3 having a filtered water port 4 and a raw water port 5. Among them, the detection channel 1 is located outside the raw water flow channel 6 and the filtered water flow channel 7. The detection channel 1 is connected to the raw water port 5 through the first channel 13; the detection channel 1 is connected to the filtered water port 4 through the second channel 14. The switching mechanism 3 includes a first solenoid valve 15 arranged in the first channel 13 and used to control the first channel 13 to be turned on and off.

[0063] When the first electromagnetic valve 15 is in a closed state, the detection channel 1 is connected to the filtered water channel, so that the detection unit 2 is in a filtered water environment. When the first electromagnetic valve 15 is in an open state, the detection channel 1 is connected to the filtered water channel and the raw water flow channel 6 at the same time. The detection unit 2 can detect the water in the detection channel 1 in this state, and calculate the detection value of the raw water flow channel 6 based on the flow of the filtered water port 4 and the raw water port 5.

[0064] In this embodiment, the detection channel 1 may have a first opening, a second opening, and a third opening, wherein the first opening and the second opening are respectively connected to the filtered water port 4 and the raw water port 5, so as to respectively receive the filtered water flowing in from the filtered water flow channel 7 and the raw water flowing in from the raw water flow channel 6. The third opening can discharge the water in the detection channel 1. The third opening can be opened when necessary to allow raw water or filtered water to flow into the detection channel 1.

[0065] In another embodiment, the switching mechanism 3 includes a first solenoid valve 15 disposed in the first channel 13 and used to control the flow of the first channel 13. The detection unit 2 can calculate the detection values ​​of the raw water flow channel 6 and the filtered water flow channel 7 based on the flow of the filtered water port 4 and the raw water port 5.

[0066] Reference Figure 7 As shown, in another embodiment, the switching mechanism 3 includes a second solenoid valve 16 disposed in the second channel 14 and used to control the on-off of the second channel 14. The second solenoid valve 16 can adjust the flow in the second channel 14. The detection unit 2 can calculate the detection values ​​of the raw water flow channel 6 and the filtered water flow channel 7 based on the flow of the filtered water port 4 and the raw water port 5.

[0067] In another embodiment, the switching mechanism 3 includes a first solenoid valve 15 disposed in the second channel 14 and used to control the flow of the second channel 14. The detection unit 2 can calculate the detection values ​​of the raw water flow channel 6 and the filtered water flow channel 7 based on the flow of the filtered water port 4 and the raw water port 5.

[0068] In this embodiment, the detection channel 1 may have a first opening, a second opening, and a third opening, wherein the first opening and the second opening are respectively connected to the filtered water port 4 and the raw water port 5, so as to respectively receive the filtered water flowing in from the filtered water flow channel 7 and the raw water flowing in from the raw water flow channel 6. The third opening can discharge the water in the detection channel 1. The third opening can be opened when necessary to allow raw water or filtered water to flow into the detection channel 1.

[0069] Reference Figure 8 As shown, the embodiment of the present application further discloses a water channel detection mechanism, which includes a detection channel 1, a detection unit 2 arranged in the detection channel 1, and a switching mechanism 3. The detection channel is formed in the raw water flow channel 6; the switching mechanism 3 includes a return water channel 17 and a control valve 18 arranged on the return water channel 17, one end of the return water channel 17 is connected to the filtered water flow channel 7, and the other end of the return water channel 17 is connected to the raw water flow channel 6 located upstream of the detection unit 2 along the water flow direction; the control valve 18 is used to control the on and off of the return water channel 17.

[0070] One of the detection methods using the water channel detection mechanism is: when the water channel system is in a water-using state, that is, the filter faucet discharges filtered water, the control valve 18 of the return water passage 17 is in a disconnected state, and the detection unit 2 in the detection channel 1 detects the raw water. When the water channel system stops using water, that is, the filter faucet stops discharging filtered water, the booster pump 23 continues to work within a preset time, and the control valve 18 of the return water passage 17 is opened to allow the filtered water to enter the detection channel 1 from the return water passage 17, so that the detection unit 2 detects the filtered water. After the booster pump 23 continues to run for a preset time (for example, 1 second), the raw water in the detection channel 1 can be completely washed away by the filtered water, and at this time, the detection channel is filled with filtered water. Therefore, when the booster pump 23 is shut down, the detection unit 2 in the detection channel 1 can be in a pure water environment all the time, thereby avoiding the adhesion of colloids or rust on the probe, and improving the detection accuracy.

[0071] In another alternative embodiment, referring to Fig. 9 As shown, the booster pump 23 is located between the other end of the return water passage 17 and the filter device. That is, the booster pump 23 is located downstream of the other end of the return water passage 17, and can be located upstream of the detection channel 1 or downstream of the detection channel 1. When the water system is in a water-using state, that is, the filtered water faucet discharges filtered water outward, the control valve 18 of the return water passage 17 can adjust the flow of the return water passage 17 at this time, so that the filtered water enters the detection channel 1 from the return water passage 17. The detection channel 1 is connected to the filtered water channel and the raw water flow channel 6 at the same time. The detection unit 2 can detect the water in the detection channel 1 in this state, and calculate the detection value of the filtered water flow channel 7 based on the flow of the raw water flow channel 6 and the return water passage 17.

[0072] The embodiment of the present application also discloses a water channel system, which includes the above-mentioned water channel detection mechanism.

[0073] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0074] The above embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with the technology to understand the content of the present application and implement it accordingly, and they cannot be used to limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A waterway detection mechanism, characterized in that: It includes a detection channel, a detection unit arranged in the detection channel, and a switching mechanism having a filtered water port and a raw water port, wherein the filtered water port of the switching mechanism is used to communicate with the filtered water flow channel of the filtering device, and the raw water port of the switching mechanism is used to communicate with the raw water flow channel of the filtering device; The switching mechanism is used to control the flow rate of the flow channel between the detection channel and the raw water port, and to control the flow rate of the flow channel between the detection channel and the filtered water port; the switching mechanism is used to control the on-off between the detection channel and the raw water port, and to control the on-off between the detection channel and the filtered water port; Wherein, the detection channel is used to be located outside the raw water flow channel and the filtered water flow channel; the switching mechanism has at least two working positions, in the first working position, the detection channel is connected to the raw water port, and the detection channel is disconnected from the filtered water port, and in the second working position, the detection channel and the raw water port are disconnected, and the detection channel is connected to the filtered water port; the detection channel has two openings, one of the openings of the detection channel is respectively connected to the filtered water port and the raw water port, and the other opening of the detection channel is used to communicate with the raw water flow channel; the switching mechanism includes: a piston, the water pressure at the raw water port and the filtered water port can act on the force-bearing parts located on both sides of the piston respectively; an elastic mechanism arranged on the piston, and the elastic mechanism is arranged on the piston corresponding to the side of the filtered water port.

2. The waterway detection mechanism according to claim 1, characterized in that: A one-way valve is arranged at the other opening of the detection channel, and the one-way valve can be connected from the other opening of the detection channel to the raw water flow channel.

3. A waterway system, characterized in that: include: A filtering device having a raw water inlet and a filtered water outlet; A raw water flow channel, which is connected to a raw water inlet of the filtering device; A filtered water flow channel, which is in communication with a filtered water outlet of the filtering device; A waterway detection mechanism as described in any one of claims 1 to 2.

4. The waterway system according to claim 3, characterized in that: include: a booster pump disposed on the raw water flow channel and located upstream of the raw water inlet of the filter device along the water flow direction, wherein when the water system is in a water-using state, the booster pump can move the piston in a first direction through the raw water flow channel, thereby connecting the raw water flow channel with the detection channel and disconnecting the filtered water flow channel from the detection channel; After the water system stops using water, the booster pump can maintain a working state within a preset time, so that the piston can move in a second direction opposite to the first direction through the filtered water flow channel, thereby disconnecting the raw water flow channel and the detection channel, and connecting the filtered water flow channel and the detection channel.

5. The waterway system according to claim 4, characterized in that: After the booster pump keeps working for a preset time, the detection channel can be filled with filtered water.

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