Secondary water supply filtering device

Abstract

This application relates to a secondary water supply filtration device, belonging to the technical field of secondary water supply. The secondary water supply filtration device includes: two sets of filter frames installed between the outlet end of the inlet pipe and the inlet end of the outlet pipe; filter elements evenly installed in the middle of the filter frames and arranged circumferentially along the filter frames for filtering impurities in the water; a filter switching component for driving the synchronous rotation of the two sets of filter frames to switch to the next filter element to continue filtering impurities in the water after the current filter element becomes clogged; a water volume detection component installed at the inlet end of the outlet pipe for detecting whether the filter element is clogged; and a controller electrically connected to the filter switching component and the water volume detection component for controlling the operation of the filter switching component based on the detection status of the water volume detection component. This application can automatically replace filter elements when they become clogged without interrupting the water supply, thus reducing the impact on users' normal water use and ensuring the stability of the secondary water supply.

Description

Technical Field

[0001] This application relates to the technical field of secondary water supply, and in particular to a secondary water supply filtration device. Background Technology

[0002] Current tap water filtration technology mainly relies on physical filtration, using a combination of PP cotton filter cartridges, activated carbon filter cartridges, resin filter cartridges, and reverse osmosis filters for water purification. However, as the filter is used over time, impurities in the water can clog the filter pores, leading to decreased filtration efficiency and insufficient water pressure. Therefore, it is necessary to replace the filter regularly to ensure water quality safety and stable water pressure.

[0003] Currently, replacing the filter requires shutting off the main water supply valve and draining the remaining water from the pipes before the replacement operation. However, this water outage results in a short period of water shortage for users and causes unstable water pressure during the initial resumption of water supply. In summary, replacing the filter by shutting off the water supply disrupts users' normal water usage. Utility Model Content

[0004] To minimize the impact on users' normal water supply when replacing the filter device, this application provides a secondary water supply filter device, which adopts the following technical solution: A secondary water supply filtration device, characterized in that it comprises: The filter frame is provided in two sets, which are installed between the outlet end of the inlet pipe and the inlet end of the outlet pipe; The filter elements are evenly installed in the middle of the filter frame and arranged along the circumference of the filter frame to filter impurities in the water. A filter switching assembly is used to drive the synchronous rotation of two sets of filter frames after the current filter element becomes clogged, so as to switch to the next filter element to continue filtering impurities in the water. A water volume detection component is installed at the inlet end of the outlet pipe to detect whether the filter element is clogged. The controller is electrically connected to the filter switching component and the water volume detection component, and is used to control the operation of the filter switching component according to the detection status of the water volume detection component.

[0005] By adopting the above technical solution, after the secondary water supply filtration device is fixed between the inlet pipe and the outlet pipe, the water volume detection component detects whether the current filter element is blocked. If it is found to be blocked, the filter switching component drives the rotation of the two sets of filter frames to switch to the next filter element to continue filtering the secondary water supply. Since the filter element can be replaced without shutting off the main water supply valve, the impact on the user's normal water use is reduced, and the stability of the secondary water supply is ensured.

[0006] Optionally, the filter switching component includes: Filter cartridge; Two planetary gear sets are provided and rotatably connected to the corresponding filter frames. Each planetary gear set includes multiple planetary gears, and the filter element is installed between two planetary gears in the planetary gear set. Two gear rings are provided, installed at both ends inside the filter cylinder, and mesh with the corresponding planetary gear set; A servo motor is installed on the outside of one end of the filter cartridge and is electrically connected to the controller; the output shaft of the servo motor is coaxially fixedly connected to a rotating shaft, and the rotating shaft is coaxially fixedly connected to the filter frame.

[0007] By adopting the above technical solution, after the controller starts the servo motor, it will drive the two filter frames to rotate synchronously. The filter frames drive the corresponding planetary gear set and filter elements to move, thereby realizing the switching of filter elements.

[0008] Optionally, the filter switching component further includes: A water collection tank, shaped like a funnel, is installed on the filter cylinder and is in communication with the filter cylinder; The return water pipe is connected at one end to the lowest point of the water collection tank and at the other end to the water inlet pipe.

[0009] By adopting the above technical solution, a small amount of water flows into the water collection tank of the filter cartridge when the filter element rotates and switches. When there is a lot of water in the water collection tank, the unfiltered water will flow back to the inlet pipe through the return pipe and be filtered again.

[0010] Optionally, the return water pipe includes: A check valve is connected to one end of the return water pipe near the inlet water pipe to prevent water in the inlet water pipe from flowing back into the filter cartridge.

[0011] Optionally, the return water pipe further includes: A drain valve is connected to the end of the return water pipe near the water collection tank.

[0012] By adopting the above technical solution, the water accumulated in the return water pipe can be drained periodically.

[0013] Optionally, the water volume detection component includes: A warning water tank is connected to the inlet end of the outlet pipe; A water level detection component is installed inside the warning water tank to detect the water level in the warning water tank.

[0014] By adopting the above technical solution, since the warning water tank is connected to the water outlet pipe, when water comes out of the water outlet pipe again, the filtered water will first enter the warning water tank. The water volume detection component detects the water volume in the warning water tank. When the water volume decreases, it indicates that the filter is blocked.

[0015] Optionally, the water volume detection component includes: A float, located inside the warning water tank, is able to float within the warning water tank as the water level changes; The push rod is sealed and slidably connected to the bottom of the warning water tank, and the sliding direction is perpendicular to the overall water flow direction; in the initial state, the end of the push rod inside the warning water tank is level with the set warning water level; An alarm is installed at the bottom of the warning water tank, and the switch button on the alarm abuts against the push rod. The alarm is electrically connected to the controller.

[0016] By adopting the above technical solution, when the filter element is clogged, the water level inside the warning tank will decrease, and the float will drop with the water level. When the float pushes the push rod to slide, the push rod applies pressure to the switch button on the alarm, the alarm sounds and sends an alarm signal to the controller. After receiving the alarm signal, the controller controls the servo motor to drive the filter switching component to work, thereby realizing the replacement of the filter element.

[0017] In summary, this application has at least the following beneficial effects: 1. The filter can be replaced without shutting off the main water supply valve, thus reducing the impact on users' normal water use and ensuring the stability of the secondary water supply.

[0018] 2. When the filter element rotates and switches, a small amount of water flows into the water collection tank of the filter cartridge. When there is a lot of water in the water collection tank, the unfiltered water will flow back to the inlet pipe through the return pipe and be filtered again.

[0019] 3. When the filter is clogged, the water level in the warning tank will decrease, and the float will drop with the water level. When the float pushes the push rod to slide, the push rod applies pressure to the switch button on the alarm, the alarm will sound and send an alarm signal to the controller. After receiving the alarm signal, the controller will control the servo motor to drive the filter switching component to work, so as to replace the filter. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the secondary water supply filtration device of this application after part of the filter cartridge and the warning water tank have been removed; Figure 2 This is a structural schematic diagram of the filter switching component and filter frame of this application; Figure 3 This is a block diagram of the control structure of this application; Explanation of reference numerals in the attached diagram: 1. Filter frame; 11. Filter element; 12. Filter switching assembly; 13. Water volume detection assembly; 14. Controller; 15. Inlet pipe; 16. Outlet pipe; 17. Inlet; 121. Planetary gear set; 122. Gear ring; 123. Filter cylinder; 124. Water collection tank; 125. Servo motor; 126. Return water pipe; 127. Check valve; 128. Drain valve; 131. Warning water tank; 132. Float; 133. Push rod; 134. Alarm. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the appendices in the embodiments of the present invention will be described below. Figure 1 - Appendix Figure 3 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This application discloses a secondary water supply filtration device, which is used to reduce the impact on users' normal water use when replacing the filtration device.

[0023] The filter frame 1 has two sets: one set is installed at the outlet end of the inlet pipe 15, and the other set is installed at the inlet end of the outlet pipe 16. Multiple sets of filter elements 11 are installed, evenly mounted between the two sets of filter frames 1 using bolts, and arranged circumferentially around the filter frame 1. The filter switching assembly 12 drives the filter frame 1 to rotate the filter elements 11, enabling the replacement of the filter elements 11. The water flow detection assembly 13 is installed at the inlet end of the outlet pipe 16. When the filter elements 11 become clogged, causing a decrease in water flow, the water flow detection assembly 13 sends an alarm signal to the controller 14. Upon receiving the alarm signal, the controller 14 controls the filter switching assembly 12 to drive the filter frame 1 to rotate and replace the filter elements 11. The filter elements 11 are conventional integrated water filtration devices, such as water filters or filter cartridges.

[0024] Reference Figure 1 and Figure 2 The filter switching assembly 12 includes: a planetary gear set 121, a gear ring 122, a filter cartridge 123, and a servo motor 125.

[0025] Two planetary gear sets 121 are provided, rotatably connected to the corresponding filter frames 1. Each planetary gear set 121 includes multiple planetary gears, and six are provided in this application. Filter elements 11 are installed between two corresponding planetary gears in the two planetary gear sets 121. Each planetary gear shaft is a hollow cylindrical shape, and both ends of the filter element 11 are connected to the corresponding planetary gear shaft. Water inlets 17 are provided on the filter frames 1, and each water inlet 17 is connected to the corresponding planetary gear shaft. Each water inlet 17 can be connected to the outlet end of the water inlet pipe 15, and the planetary gear shafts on the other filter frame 1 can be connected to the inlet end of the water volume detection component 13. Unfiltered water in the water inlet pipe 15 enters the corresponding planetary gear shaft through the water inlet 17 and then enters the filter element 11. After filtration, it is discharged into the water volume detection component 13.

[0026] The filter cartridge 123 is installed between the outlet end of the inlet pipe 15 and the inlet end of the water volume detection component 13; the gear ring 122 is fixedly installed at both ends of the filter cartridge 123, and the planetary gear set 121 meshes with the corresponding gear ring 122.

[0027] The servo motor 125 is installed on the outside of one end of the filter cylinder 123. The output shaft of the servo motor 125 is coaxially fixedly connected to the rotating shaft, and the rotating shaft is sealed and rotatably connected to the inside of the filter cylinder 123. The two filter frames 1 are coaxially fixedly connected to the two ends of the rotating shaft respectively. After the servo motor 125 is started, it drives the rotation of the filter frame 1.

[0028] Furthermore, the filter cartridge 123 is also connected to a water collection tank 124, which is funnel-shaped and used to collect unfiltered water that leaks into the filter cartridge 123 when the filter element 11 is replaced. A return water pipe 126 is connected to the lowest point of the water collection tank 124. The end of the return water pipe 126 away from the water collection tank 124 is connected to the inlet water pipe 15. A check valve 127 is installed at the end of the return water pipe 126 near the inlet water pipe 15, and a drain valve 128 is installed at the end of the return water pipe 126 near the filter cartridge 123.

[0029] Reference Figure 1 and Figure 3 The water level detection component 13 includes a warning water tank 131 and a water level detection element. The warning water tank 131 is vertically positioned, with its inlet fixedly connected to the filter cartridge 123 and its outlet connected to the outlet pipe 16. The water level detection element is used to detect the water level inside the warning water tank 131.

[0030] The water level detection component may include a float 132, a push rod 133, and an alarm 134.

[0031] The float 132, located inside the warning water tank 131, floats up and down with changes in water level. The water storage space of the warning water tank 131 restricts the left and right movement of the float 132. The push rod 133 is installed at the bottom of the warning water tank 131, with its sliding direction perpendicular to the overall water flow direction, and the connection is sealed with a sealing ring. In the initial state, one end of the push rod 133 inside the warning water tank 131 is level with the set warning water level, and the bottom end of the push rod 133 abuts against the switch button on the alarm 134. The controller 14 is electrically connected to the alarm 134.

[0032] The implementation principle of this embodiment is as follows: Secondary water supply enters the filter element 11 through the inlet pipe 15, and after being filtered by the filter element 11, it enters the warning water tank 131, and then enters the outlet pipe 16 through the warning water tank 131. When the filter element 11 is not clogged, the float 132 does not apply pressure to the push rod 133. When the filter element 11 becomes clogged, the amount of water entering the warning water tank 131 decreases, and the float 132 descends with the water level, squeezing the push rod 133. The push rod 133 then applies pressure to the switch button, thereby activating the alarm 134. The alarm 134 transmits an alarm signal to the controller 14, which in turn controls the servo motor 125. The servo motor 125 drives the rotating shaft to rotate, which in turn drives the filter frame 1 to rotate. The filter frame 1 then drives the planetary gear set 121 and the filter element 11 to rotate, thus enabling the replacement of the filter element 11. During the replacement of filter element 11, a small amount of unfiltered water will flow into the water collection tank 124. When there is a lot of water in the water collection tank 124, the unfiltered water will flow back to the outlet of the inlet pipe 15 through the return pipe 126 for re-filtration. Since water will remain in the return pipe 126, the drain valve 128 can be opened periodically to drain the remaining water in the return pipe 126 to prevent water accumulation from corroding the pipe.

[0033] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. A secondary water supply filtering device, characterized by, include: The filter frame (1) is provided in two sets, which are installed between the water outlet end of the water inlet pipe (15) and the water inlet end of the water outlet pipe (16); The filter element (11) is evenly installed in the middle of the filter frame (1) and arranged along the circumference of the filter frame (1) for filtering impurities in the water; The filter switching assembly (12) is used to drive the synchronous rotation of the two sets of filter frames (1) after the current filter element (11) is blocked, so as to switch the next filter element (11) to continue filtering impurities in the water. A water volume detection component (13) is installed at the inlet end of the outlet pipe (16) to detect whether the filter element (11) is blocked; The controller (14) is electrically connected to the filter switching component (12) and the water volume detection component (13) and is used to control the operation of the filter switching component (12) according to the detection status of the water volume detection component (13).

2. The filter device according to claim 1, wherein The filter switching component (12) includes: Filter cartridge (123); Planetary gear sets (121) are provided in two sets and are rotatably connected to the corresponding filter frame (1). Each planetary gear set (121) includes multiple planetary gears, and the filter element (11) is installed between two planetary gears in the planetary gear set (121). Two gear rings (122) are provided, installed at both ends inside the filter cylinder (123), and mesh with the corresponding planetary gear set (121); A servo motor (125) is installed on the outside of one end of the filter cartridge (123) and is electrically connected to the controller (14); the output shaft of the servo motor (125) is coaxially fixedly connected to a rotating shaft, and the rotating shaft is coaxially fixedly connected to the filter frame (1).

3. The filter device according to claim 2, wherein The filter switching component (12) further includes: A water collection tank (124) is funnel-shaped, installed on the filter cylinder (123), and communicates with the filter cylinder (123); The return water pipe (126) is connected at one end to the lowest point of the water collection tank (124) and at the other end to the water inlet pipe (15).

4. The filter device according to claim 3, wherein The return water pipe (126) includes: A check valve (127) is connected to one end of the return water pipe (126) near the inlet water pipe (15) to prevent water in the inlet water pipe (15) from flowing back into the filter cartridge (123).

5. The filter device for secondary water supply according to claim 4, wherein The return water pipe (126) also includes: A drain valve (128) is connected to the return water pipe (126) at one end near the water collection tank (124).

6. The filter device for secondary water supply according to claim 1, wherein The water quantity detection component (13) includes: Warning water tank (131) is connected to the inlet end of the outlet pipe (16); A water level detection component is installed inside the warning water tank (131) to detect the water level inside the warning water tank (131).

7. The filter device according to claim 6, wherein The water volume detection component includes: A float (132) is located inside the warning water tank (131) and can float in the warning water tank (131) as the water level changes; The push rod (133) is sealed and slidably connected to the bottom of the warning water tank (131), and the sliding direction is perpendicular to the overall water flow direction; in the initial state, the end of the push rod (133) inside the warning water tank (131) is level with the set warning water level; An alarm (134) is installed at the bottom of the warning water tank (131), and the switch button on the alarm (134) abuts against the push rod (133). The alarm (134) is electrically connected to the controller (14).

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