Water leakage prevention protection mechanism of household water purifier
By combining the fixing and drainage mechanisms, the problem of water leakage caused by loose filter elements in household water purifiers is solved. Automatic detection and drainage are achieved, avoiding water waste and safety hazards, and ensuring the stable operation of the water purifier.
Patent Information
- Application Number
- CN202423210065.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Household water purifiers are prone to leaks during use, especially when the user is not at home, leading to water waste and safety hazards.
The system employs a combination of a fixed mechanism, a fixed plate, a limit block, a filter element tank, a rubber pad, an electric push rod, a motor, a lead screw, and a movable rod. The motor drives the lead screw to rotate, causing the movable rod to rise and fall. The fixed plate lifts the bottom of the filter element to prevent it from loosening. Combined with a drainage mechanism, a water pump, a suction pipe, a drain pipe, a liquid level sensor, and a solenoid valve, it achieves automatic detection and drainage.
It effectively prevents water leakage caused by the filter element loosening due to prolonged use. The automatic detection and drainage mechanism prevents continuous water leakage from the water purifier, protects circuit safety, and prevents property damage.
Smart Images

Figure CN223615541U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household water purifier technology, specifically to a leak-proof protection mechanism for household water purifiers. Background Technology
[0002] As people's health awareness and living standards continue to improve, their requirements for drinking water are also increasing, leading to the widespread use of household water purifiers. The biggest hidden danger during the use of household water purifiers is leakage, especially when users are not home or have not checked the purifier's operation for extended periods. Leaks not only waste water resources but can also cause short circuits and other safety issues, resulting in property damage.
[0003] Patent publication number CN213298803U discloses a leak-proof protection mechanism for a household water purifier, including a water purifier body. Connecting plates are fixedly installed on both sides of the bottom of the water purifier body. A sealing gasket is movably installed on the bottom of the water purifier body. The sealing gasket is located on the side where the two connecting plates are close to each other. Fixing grooves are opened on both sides of the sealing gasket. A groove is opened on the inner side of the connecting plate. One end of a worm gear is rotatably installed in the groove. The other end of the worm gear extends to the outside of the connecting plate and is fixedly installed with a knob.
[0004] To address the issue of leaks in existing household water purifiers, current technology involves installing a sealing gasket at the bottom of the purifier. The gasket and the sealing seat work together to ensure a good seal during operation. However, existing water purifier filter cartridges often have threaded connections, which can loosen over time, leading to leaks. Utility Model Content
[0005] The purpose of this utility model is to provide a leak-proof protection mechanism for household water purifiers to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A leak-proof protection mechanism for a household water purifier includes a protective box, with a drainage mechanism located at one location inside the protective box and a fixing mechanism located at another location inside the protective box.
[0008] The fixing mechanism includes a fixing plate and an electric push rod. A motor is fixedly connected inside the electric push rod. A lead screw is fixedly connected to the output shaft of the motor. A movable rod is threaded to the top of the lead screw. The bottom end of the movable rod is movably connected to the electric push rod. The top end of the movable rod is fixedly connected to the bottom end of the fixing plate.
[0009] A further improvement of the present invention is that: the two ends of the fixing plate are fixedly connected to limit blocks, the surface of the fixing plate is provided with a filter element groove, the inside of the filter element groove is provided with a rubber pad, and the rubber pad is fixedly connected to the fixing plate.
[0010] A further improvement of the present invention is that: the protective box includes a door, a support leg is fixedly connected to the bottom of the protective box, a hinge is fixedly connected to one end of the door, the other end of the hinge is fixedly connected to the protective box, the door push rod hinge is movably connected to the protective box, a handle is fixedly connected to one side of the surface of the door, and glass is fixedly connected to another side of the surface of the door.
[0011] A further improvement of this utility model is that: a water purifier body is fixedly connected inside the protective box, a water inlet pipe is fixedly connected to the top of the water purifier body, the water inlet pipe passes through the protective box and is fixedly connected to the protective box, and a solenoid valve is fixedly connected to the upper end of the water inlet pipe.
[0012] A further improvement of the present invention is that: a water supply pipe is fixedly connected to one end of the main body of the water purifier, the water supply pipe passes through the protective box and is fixedly connected to the protective box, and a filter element connector is fixedly connected to the bottom end of the main body of the water purifier, and a filter element is threadedly connected to the bottom end of the filter element connector.
[0013] A further improvement of this utility model is that: the inner sides of the protective box are provided with limiting grooves, the inner diameter of the limiting grooves matches the outer diameter of the limiting block, the fixing plate is movably connected to the protective box through the limiting block, the bottom of the protective box is provided with a water storage cavity, the bottom of the water storage cavity is provided with a liquid level sensor, and the liquid level sensor is fixedly connected to the protective box.
[0014] A further improvement of the present invention is that the drainage mechanism includes a water pump, the water pump is fixedly connected to the protective box, the input end of the water pump is fixedly connected to a pumping pipe, the output end of the pumping pipe is fixedly connected to a drain pipe, and the drain pipe passes through the protective box and is fixedly connected to the protective box.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides a leak-proof protection mechanism for a household water purifier. It adopts a combination of a fixing mechanism, a fixing plate, a limiting block, a filter cartridge groove, a rubber pad, an electric push rod, a motor, a lead screw, and a movable rod. The motor drives the lead screw to rotate, causing the movable rod to rise and fall, thereby lifting the fixing plate and applying pressure to the bottom of the filter cartridge. This prevents the connection between the filter cartridge and the filter cartridge connector from becoming loose, thus avoiding the situation where the water purifier body leaks due to the filter cartridge becoming loose after long-term use. The rubber pad prevents the fixing plate from damaging the bottom of the filter cartridge.
[0017] 2. This utility model provides a leak-proof protection mechanism for a household water purifier. It consists of a protective box, support legs, a door, a handle, glass, hinges, the main body of the water purifier, an inlet pipe, a solenoid valve, a water supply pipe, a filter element connector, a filter element, a limiting groove, a water storage chamber, and a liquid level sensor. The door facilitates maintenance of the internal parts of the protective box, the glass allows for easy observation of the internal condition of the protective box, the water storage chamber stores water leaking from the main body of the water purifier, the liquid level sensor detects leaks, and the solenoid valve cuts off the water supply to the inlet pipe to prevent continuous leakage from the main body of the water purifier.
[0018] 3. This utility model provides a water leakage protection mechanism for a household water purifier. It adopts the cooperation of a drainage mechanism, a water pump, a water suction pipe, and a drain pipe. The water pump can draw out the water exposed in the main body of the water purifier and send it away from the inside of the protective box, so as to prevent the leaked water from damaging the circuit and causing safety hazards. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the protective box structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the internal structure of the protective box of this utility model;
[0022] Figure 4 This is a schematic diagram of the fixing plate of this utility model;
[0023] Figure 5 This is a schematic diagram of the electric actuator structure of this utility model.
[0024] In the diagram: 1. Protective box; 11. Support leg; 12. Box door; 13. Handle; 14. Glass; 15. Hinge; 16. Water purifier body; 17. Inlet pipe; 18. Solenoid valve; 19. Water supply pipe; 110. Filter cartridge connector; 111. Filter cartridge; 112. Limiting groove; 113. Water storage chamber; 114. Liquid level sensor; 2. Drainage mechanism; 21. Water pump; 22. Pumping pipe; 23. Drainage pipe; 3. Fixing mechanism; 31. Fixing plate; 32. Limiting block; 33. Filter cartridge groove; 34. Rubber pad; 35. Electric push rod; 36. Motor; 37. Lead screw; 38. Movable rod. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to embodiments:
[0026] Example 1
[0027] like Figure 1-5 As shown, this utility model provides a leak-proof protection mechanism for a household water purifier, including a protective box 1. A drainage mechanism 2 is provided inside the protective box 1, and a fixing mechanism 3 is provided inside the protective box 1. The fixing mechanism 3 includes a fixing plate 31 and an electric push rod 35. A motor 36 is fixedly connected inside the electric push rod 35. A lead screw 37 is fixedly connected to the output shaft of the motor 36. A movable rod 38 is threadedly connected to the top of the lead screw 37. The bottom end of the movable rod 38 is movably connected to the electric push rod 35. The top end of the movable rod 38 is fixedly connected to the bottom end of the fixing plate 31. Limiting blocks 32 are fixedly connected to both ends of the fixing plate 31. A filter element groove 33 is provided on the surface of the fixing plate 31. A rubber pad 34 is provided inside the filter element groove 33, and the rubber pad 34 is fixedly connected to the fixing plate 31.
[0028] In this embodiment, the motor 36 drives the lead screw 37 to rotate, causing the movable rod 38 to rise and fall, thereby lifting the fixing plate 31 and applying pressure to the bottom of the filter element 111. This prevents the connection between the filter element 111 and the filter element connector 110 from becoming loose, thus avoiding the situation where the water purifier body 16 leaks due to the filter element 111 becoming loose after long-term use. The rubber pad 34 prevents the fixing plate 31 from damaging the bottom of the filter element 111.
[0029] Example 2
[0030] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the protective box 1 includes a door 12, a support leg 11 is fixedly connected to the bottom of the protective box 1, a hinge 15 is fixedly connected to one end of the door 12, the other end of the hinge 15 is fixedly connected to the protective box 1, the door 12 push rod hinge 15 is movably connected to the protective box 1, a handle 13 is fixedly connected to one part of the surface of the door 12, a glass 14 is fixedly connected to another part of the surface of the door 12, a water purifier body 16 is fixedly connected inside the protective box 1, a water inlet pipe 17 is fixedly connected to the top of the water purifier body 16, the water inlet pipe 17 penetrates the protective box 1 and is fixedly connected to the protective box 1, and the upper end of the water inlet pipe 17 is fixedly connected to the protective box 1. A solenoid valve 18 is fixedly connected to one end of the water purifier body 16, and a water supply pipe 19 is fixedly connected to one end of the water purifier body 16. The water supply pipe 19 passes through the protective box 1 and is fixedly connected to the protective box 1. A filter element connector 110 is fixedly connected to the bottom end of the water purifier body 16, and a filter element 111 is threadedly connected to the bottom end of the filter element connector 110. Limiting grooves 112 are provided on both sides inside the protective box 1. The inner diameter of the limiting groove 112 matches the outer diameter of the limiting block 32. The fixing plate 31 is movably connected to the protective box 1 through the limiting block 32. A water storage chamber 113 is provided at the bottom end of the protective box 1. A liquid level sensor 114 is provided at the bottom end of the water storage chamber 113 and is fixedly connected to the protective box 1.
[0031] In this embodiment, the door 12 facilitates the inspection of the interior of the protective box 1, the glass 14 facilitates the observation of the interior condition of the protective box 1, the water storage chamber 113 can store the water leaking from the main body 16 of the water purifier, the liquid level sensor 114 detects the water leakage, and the solenoid valve 18 cuts off the water path of the inlet pipe 17 to prevent the main body 16 of the water purifier from continuously leaking water.
[0032] Example 3
[0033] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the drainage mechanism 2 includes a water pump 21, the water pump 21 is fixedly connected to the protective box 1, the input end of the water pump 21 is fixedly connected to a water pumping pipe 22, the output end of the water pumping pipe 22 is fixedly connected to a drain pipe 23, and the drain pipe 23 passes through the protective box 1 and is fixedly connected to the protective box 1.
[0034] In this embodiment, the water pump 21 can extract the water exposed on the main body 16 of the water purifier and send it away from the inside of the protective box 1, so as to prevent the leaked water from damaging the circuit and causing safety hazards.
[0035] The working principle of the leak-proof protection mechanism of this household water purifier will be explained in detail below.
[0036] like Figure 1-5As shown, the motor 36 drives the lead screw 37 to rotate, causing the movable rod 38 to rise and fall, thereby lifting the fixing plate 31 and applying pressure to the bottom of the filter element 111. This prevents the connection between the filter element 111 and the filter element connector 110 from becoming loose, thus avoiding the situation where the water purifier body 16 leaks due to the filter element 111 becoming loose after long-term use. The rubber pad 34 prevents the fixing plate 31 from damaging the bottom of the filter element 111. The water storage chamber 113 can store the water leaked from the water purifier body 16. The liquid level sensor 114 detects the leakage and the solenoid valve 18 cuts off the water inlet pipe 17 to prevent the water purifier body 16 from continuously leaking. The water pump 21 can extract the water leaked from the water purifier body 16 and send it away from the inside of the protection box 1 to prevent the leaked water from damaging the circuit and causing safety hazards.
[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A leak-proof protection mechanism for a household water purifier, comprising a protective box (1), characterized in that: A drainage mechanism (2) is provided inside the protective box (1), and a fixing mechanism (3) is provided inside the protective box (1) at another location. The fixing mechanism (3) includes a fixing plate (31) and an electric push rod (35). A motor (36) is fixedly connected inside the electric push rod (35). A lead screw (37) is fixedly connected to the output shaft of the motor (36). A movable rod (38) is threadedly connected to the top of the lead screw (37). The bottom end of the movable rod (38) is movably connected to the electric push rod (35). The top end of the movable rod (38) is fixedly connected to the bottom end of the fixing plate (31).
2. The leak-proof protection mechanism for a household water purifier according to claim 1, characterized in that: Limiting blocks (32) are fixedly connected to both ends of the fixing plate (31). A filter element groove (33) is provided on the surface of the fixing plate (31). A rubber pad (34) is provided inside the filter element groove (33), and the rubber pad (34) is fixedly connected to the fixing plate (31).
3. The leak-proof protection mechanism for a household water purifier according to claim 1, characterized in that: The protective box (1) includes a door (12), a support leg (11) is fixedly connected to the bottom of the protective box (1), a hinge (15) is fixedly connected to one end of the door (12), the other end of the hinge (15) is fixedly connected to the protective box (1), the door (12) push rod hinge (15) is movably connected to the protective box (1), a handle (13) is fixedly connected to one side of the surface of the door (12), and a glass (14) is fixedly connected to another side of the surface of the door (12).
4. The leak-proof protection mechanism for a household water purifier according to claim 1, characterized in that: The protective box (1) is fixedly connected to the water purifier body (16), and the top of the water purifier body (16) is fixedly connected to the water inlet pipe (17). The water inlet pipe (17) passes through the protective box (1) and is fixedly connected to the protective box (1). The upper end of the water inlet pipe (17) is fixedly connected to the solenoid valve (18).
5. The leak-proof protection mechanism for a household water purifier according to claim 4, characterized in that: One end of the water purifier body (16) is fixedly connected to a water supply pipe (19), the water supply pipe (19) passes through the protective box (1) and is fixedly connected to the protective box (1), and the bottom end of the water purifier body (16) is fixedly connected to a filter element connector (110), and the bottom end of the filter element connector (110) is threadedly connected to a filter element (111).
6. The leak-proof protection mechanism for a household water purifier according to claim 1, characterized in that: The protective box (1) has limiting grooves (112) on both sides inside. The inner diameter of the limiting groove (112) matches the outer diameter of the limiting block (32). The fixing plate (31) is movably connected to the protective box (1) through the limiting block (32). The bottom of the protective box (1) has a water storage cavity (113). The bottom of the water storage cavity (113) has a liquid level sensor (114), and the liquid level sensor (114) is fixedly connected to the protective box (1).
7. The leak-proof protection mechanism for a household water purifier according to claim 1, characterized in that: The drainage mechanism (2) includes a water pump (21), which is fixedly connected to the protective box (1). The input end of the water pump (21) is fixedly connected to a water pump pipe (22), and the output end of the water pump pipe (22) is fixedly connected to a drain pipe (23). The drain pipe (23) passes through the protective box (1) and is fixedly connected to the protective box (1).
Citation Information
Patent Citations
Water leakage prevention protection mechanism of household water purifier
CN213298803U