Hydrogen-rich water purifier

Abstract

The hydrogen-rich water purifier comprises a shell and a water purification path arranged in the shell, and the water purification path sequentially comprises a primary filter element assembly, a water inlet electromagnetic valve, a booster pump, a reverse osmosis filter element, a first high-voltage switch, a rear activated carbon filter element and a water outlet faucet in the water path direction. The hydrogen production loop is connected with the first high-voltage switch and the water outlet faucet; the hydrogen production loop sequentially comprises a resin filter element, a regulating valve, an electrolytic bath, a hydrogen mixing pump and a second high-voltage switch; and a water supply pipeline for supplying water is also connected between the water inlet of the resin filter element and the water inlet of the hydrogen mixing pump. According to the hydrogen-rich water purifier, the hydrogen can be generated through the electrolytic cell and mixed with water through the hydrogen mixing pump to obtain hydrogen bubble water, so that the hydrogen-rich water purifier automatically generates hydrogen without manually adding hydrogen, and the hydrogen-rich water purifier is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the field of water purifiers, in particular to a hydrogen-rich water purifier. Background Art

[0002] A water purifier is a type of water treatment equipment used to deeply filter and purify water. It is primarily designed for use in homes, offices, and other places to provide cleaner and safer drinking water.

[0003] A Chinese utility model patent, with authorization announcement number CN213707981U, proposes a household hydrogen-enriched water purifier. The device comprises, along the waterway, a filter assembly, a water inlet solenoid valve, a booster pump, a high-pressure switch, a post-activated carbon filter element, and a post-antibacterial membrane. Tap water enters the filter assembly and undergoes initial filtration before being filtered through the post-antibacterial membrane and exiting the tap. To provide the water purifier with hydrogen enrichment, a cylindrical tank is added to the waterway. Hydrogen gas is injected into the cylindrical tank, and the pressure differential is used to propel hydrogen molecules from the gas into the waterway, achieving hydrogen enrichment.

[0004] In the structure of the above-mentioned water purifier, the hydrogen in the cylindrical tank is added manually and cannot be generated by itself. In addition, the hydrogen is always consumed during the use of the water purifier. Therefore, the hydrogen in the cylindrical tank needs to be replenished manually on a regular basis, which is relatively cumbersome. Utility Model Content

[0005] In order to enable the hydrogen in the water purifier to be self-generated and avoid tedious manual addition operations, the utility model provides a hydrogen-rich water purifier.

[0006] The utility model provides a hydrogen-rich water purifier, which adopts the following technical solutions:

[0007] A hydrogen-rich water purifier comprises a shell and a clean water circuit arranged in the shell, wherein the clean water circuit includes, in sequence along the water direction, a primary filter element assembly, a water inlet solenoid valve, a booster pump, a reverse osmosis filter element, a first high-pressure switch, a post-activated carbon filter element, and a water outlet faucet, and further includes a hydrogen production circuit connecting the first high-pressure switch and the water outlet faucet, wherein the hydrogen production circuit includes, in sequence, a resin filter element, a regulating valve, an electrolyzer, a hydrogen mixing pump, and a second high-pressure switch; a water supply pipeline for water supply is also connected between the water inlet of the resin filter element and the water inlet of the hydrogen mixing pump.

[0008] By adopting this technical solution, in the hydrogen production circuit, tap water is filtered through a resin filter before entering the electrolytic cell, where it undergoes electrolysis to generate hydrogen. This hydrogen is then mixed with water in the water supply line via a hydrogen mixing pump to produce hydrogen-rich water. This hydrogen-rich water purifier, which relies solely on tap water as a raw material, eliminates the need for manual hydrogen addition and is conveniently capable of continuously generating hydrogen as soon as the purifier is turned on.

[0009] Optionally, the resin filter element and the first high-pressure switch are provided with a solenoid valve for supplying water into the hydrogen production circuit to generate hydrogen bubble water.

[0010] By adopting the above technical solution and setting up a solenoid valve, the hydrogen bubble water of the hydrogen-rich water purifier can be made an optional function. When the user wants to drink hydrogen bubble water, hydrogen bubble water can be produced by simply starting the solenoid valve. When the user only wants to drink pure water, he only needs to close the solenoid valve, which is more convenient.

[0011] Optionally, it further includes a wastewater discharge end, the water outlet of the reverse osmosis filter element is connected to the wastewater discharge end through a wastewater solenoid valve, and the electrolytic cell is connected to the wastewater discharge end through a check valve.

[0012] By adopting the above technical solution, wastewater will be generated in both the reverse osmosis filter element and the electrolytic cell. By setting a wastewater discharge end and connecting the two to the wastewater discharge end, the wastewater generated in the water purifier can be discharged and is not easy to pollute the inside of the water purifier.

[0013] Optionally, the shell has an upper chamber and a lower chamber located within the upper chamber, and a partition plate is provided between the upper chamber and the lower chamber; the partition plate is provided with installation openings through the upper and lower surfaces for the primary filter element assembly to be inserted and installed from top to bottom; the bottom surface of the partition plate is provided with a mounting frame for the primary filter element assembly to abut and fix.

[0014] By adopting the above technical solution, most of the electrical components of the water purifier are installed in the lower chamber, and the primary filter element assembly is installed through the installation port opened in the upper chamber. Therefore, when installing or replacing the primary filter element assembly, it is only necessary to open the upper chamber without opening the lower chamber. Dust is not easy to enter the lower chamber, which is more convenient.

[0015] Optionally, the mounting frame has a placement channel adapted to the primary filter element assembly, and a limiting column is horizontally arranged at the bottom of the placement channel to abut against the bottom surface of the primary filter element assembly.

[0016] By adopting the above technical solution, when installing the primary filter element assembly, the placement channel is adapted to the primary filter element assembly, and the placement channel can limit the primary filter element assembly in the circumferential direction, making the primary filter element assembly less likely to shake during installation. In addition, the limiting post can provide travel limit and positioning for the primary filter element assembly, ensuring that the primary filter element assembly is positioned at the same depth each time it is inserted into the installation opening.

[0017] Optionally, the limiting column is coaxially provided with a threaded hole, and the bottom of the primary filter element assembly is horizontally provided with a fixing through hole which is concentrically arranged with the threaded hole and is provided for screw fixing.

[0018] By adopting the above technical solution, the limiting post not only serves as a limiter but also as a fixator. When the primary filter element assembly is installed into the installation opening and abuts against the limiting post, the fixing through-hole at the bottom of the primary filter element assembly is aligned with the threaded hole on the limiting post and fixed with screws, so that the primary filter element assembly can be firmly installed in the installation opening and the primary filter element assembly is limited in both the horizontal and vertical directions.

[0019] Optionally, the primary filter element assembly includes a filter element housing and a filter element cover for covering the filter element housing; positioning blocks are evenly arranged around the circumference of the filter element housing, and the partition plate is provided with a vertical positioning groove around the mounting port for the positioning blocks to pass through so that the threaded hole can cooperate with the fixed through hole.

[0020] By adopting the above technical solution, when installing the primary filter element assembly, first align the positioning block with the vertical positioning groove, and then insert the primary filter element assembly into the installation port. At this time, the threaded hole on the limit column can be directly aligned with the fixed through hole, and there is no need to rotate and adjust the primary filter element assembly, which is more convenient.

[0021] Optionally, the filter element cover is threadedly connected to the filter element housing, and a locking block is provided on the inner wall of the filter element cover. The filter element housing is provided with a locking groove at the starting end of the thread for the locking block to be engaged and locked, and a guide slope for the locking block to slide into the locking groove.

[0022] By adopting the above technical solution, after the filter element is installed in the filter element housing, the filter element cover and the filter element housing are rotated together. At this time, the locking block can move along the guide slope and slide into the locking groove, thereby fixing the filter element cover and the filter element housing, and the filter element cover is not easy to fall off the filter element housing.

[0023] Optionally, the top of the shell has a top cover covering the upper chamber, and the side of the shell has a side cover covering the lower chamber; one end of the top cover has an insertion block; one end of the top of the upper chamber is provided with a slot for inserting the insertion block; the top of the upper chamber is provided with a locking groove at the end away from the slot, and the top cover has a locking piece at the end away from the insertion block that engages with the locking groove.

[0024] By adopting the above technical solution, when installing the top cover, the inserting block is first inserted into the slot, and then the locking piece is snapped into the locking slot, which is more convenient.

[0025] Optionally, the locking member includes a pressing plate rotatably mounted on the bottom of the top cover, a return spring for driving the pressing plate to return to its original position, a locking block rotatably mounted on the bottom of the top cover and cooperating with the locking groove, and a connecting rod connected to the locking block and cooperating with the pressing plate;

[0026] The shell is provided with a driving groove for a finger to insert and press the pressing plate; the bottom of the pressing plate is provided with a magnetic sheet, and the end of the connecting rod away from the locking block is magnetically attracted to the magnetic sheet; the pressing plate has a pressing state and a releasing state, and in the pressing state, the pressing plate drives the locking block to rotate and exit the locking groove; in the releasing state, the pressing plate drives the locking block to rotate, insert and lock in the locking groove.

[0027] By adopting the above technical solution, a locking block structure is disclosed. When removing the top cover from the water purifier, one inserts a finger into the drive slot and presses the pressing plate. The pressing plate drives the locking block out of the locking slot, making it easier to remove the top cover. When installing the top cover, the edge of the locking slot drives the locking block to rotate, which in turn compresses the return spring. When the locking block enters the locking slot, the return spring resets, pressing the locking block firmly into the slot, preventing the top cover from falling off.

[0028] In summary, the present invention has at least one of the following beneficial technical effects:

[0029] 1. A hydrogen-rich water purifier, which is equipped with a hydrogen production circuit. When the hydrogen production circuit is turned on, it can automatically generate hydrogen and mix it with water to produce hydrogen bubbles, without the need for manual addition of hydrogen;

[0030] 2. By providing placement channels, limiting columns, threaded holes, and vertical positioning grooves, the primary filter element assembly can be limited in the circumferential, horizontal, and vertical directions when installed in the installation port, and the primary filter element assembly can be securely installed in the installation port;

[0031] 3. By providing a locking piece, when installing the primary filter element assembly, the top cover can be easily removed from the housing by pressing the pressing plate of the locking piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of a hydrogen-rich water purifier according to Example 1 of the present utility model;

[0033] Figure 2 This is a waterway structure diagram of a hydrogen-rich water purifier according to Example 1 of the present utility model;

[0034] Figure 3 This is a schematic structural diagram of the housing of Example 1 of the present utility model;

[0035] Figure 4 This is an exploded view of the primary filter element assembly of Example 1 of the present utility model;

[0036] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle;

[0037] Figure 6 This is an exploded view of the locking structure between the top cover and the housing in Example 1 of the present utility model;

[0038] Figure 7 It is a cross-sectional view of the locking structure between the top cover and the shell of Example 2 of the present utility model.

[0039] The parts designated by the numbers in the above drawings are as follows: 1. Housing; 2. Purified water circuit; 3. Hydrogen production circuit; 4. Primary filter element assembly; 5. Water inlet solenoid valve; 6. Booster pump; 7. Reverse osmosis filter element; 8. First high-pressure switch; 9. Post-activated carbon filter element; 10. Water outlet faucet; 11. Solenoid valve; 12. Resin filter element; 13. TDS probe; 14. Regulating valve; 15. Electrolyzer; 16. Hydrogen mixing pump; 17. Shut-off valve; 18. Second high-pressure switch; 19. Water supply pipeline; 20. Wastewater discharge end; 21. Wastewater solenoid valve; 22. Check valve; 23. Upper chamber; 24. Lower chamber; 25. Partition plate; 26. Top cover; 27. Side cover; 28. Mounting port; 29. ​​Mounting bracket; 30. Placement channel; 31. Filter element housing; 32. Filter element cover; 33. Threaded portion; 34. Thread starting end; 35. Locking groove; 36. Guide slope; 37. Locking block; 38. Limiting column; 39. Threaded hole; 40. Fixing through hole; 41. Positioning block; 42. Vertical positioning groove; 43. Insert block; 44. Locking piece; 45. Slot; 46. Locking groove; 47. Drive groove; 48. Pressing plate; 49. Return spring; 50. Locking block; 51. Connecting rod; 52. Mounting groove; 53. Pressing portion; 54. Drive portion; 55. Locking portion; 56. Passive portion; 57. Magnetic sheet. DETAILED DESCRIPTION

[0040] The present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0041] The embodiment of the utility model discloses a hydrogen-rich water purifier.

[0042] Example 1:

[0043] Reference Figure 1 A hydrogen-rich water purifier includes a housing 1 and a water purification circuit 2 and a hydrogen production circuit 3 provided in the housing 1. The water purification circuit 2 is used to filter tap water to produce pure water, and the hydrogen production circuit 3 is used to produce hydrogen bubble water.

[0044] Reference Figure 2 The purified water path 2 includes, along the water path direction, a primary filter element assembly 4, a water inlet solenoid valve 5, a booster pump 6, a reverse osmosis filter element 7, a first high-pressure switch 8, a post-activated carbon filter element 9, and a water outlet faucet 10. The primary filter element assembly 4 is used to perform primary filtration on the tap water. In this embodiment, the primary filter element assembly 4 is a combination of a PP melt-blown filter element and a PCB ceramic substrate filter element. The water inlet solenoid valve 5 is used to control the water entering the water purifier. The booster pump 6 is used to increase the water flow pressure to provide a stable working pressure for the water purifier. The reverse osmosis filter element 7 is a secondary filter used to remove large particles and soluble salts in the tap water. The first high-pressure switch 8 is used to control when the water purifier is connected to a water storage tank. The post-activated carbon filter element 9 performs a final filtration on the tap water to remove odorous substances in the water.

[0045] The hydrogen production circuit 3 connects to a reverse osmosis filter element 7 and a water tap 10. A portion of tap water, filtered through the reverse osmosis filter element 7, enters the hydrogen production circuit 3 to generate hydrogen bubble water. The hydrogen production circuit 3 sequentially includes a solenoid valve 11, a resin filter element 12, a TDS probe 13, a regulating valve 14, an electrolyzer 15, a hydrogen mixing pump 16, a shutoff valve 17, and a second high-pressure switch 18. A water supply line 19 is also connected between the water inlet of the resin filter element 12 and the water inlet of the hydrogen mixing pump 16.

[0046] The solenoid valve 11 is used to open and close the hydrogen production circuit 3 to produce hydrogen according to the needs of the user. The resin filter element 12 can remove harmful substances such as hardness ions and metal ions in tap water, thereby improving the water quality. The TDS probe 13 is used to monitor the water quality of the tap water flowing out of the resin filter element 12. The regulating valve 14 is used to adjust the flow rate of water entering the electrolytic cell 15. The electrolytic cell 15 is used to electrolyze tap water to produce hydrogen. The hydrogen mixing pump 16 is used to mix the water in the water supply pipe 19 and the hydrogen produced in the electrolytic cell 15 to obtain hydrogen bubble water. The shut-off valve 17 is used to control the flow rate of hydrogen bubble water flowing out of the hydrogen mixing pump 16. The second high-voltage switch 18 has the same function as the first high-voltage switch 8 and will not be repeated here.

[0047] The housing 1 also has a wastewater discharge end 20. The water outlet of the reverse osmosis filter element 7 is connected to the wastewater discharge end 20 through a wastewater solenoid valve 21, and the electrolytic cell 15 is connected to the wastewater discharge end 20 through a check valve 22, so that the wastewater generated in the reverse osmosis filter element 7 and the wastewater generated in the electrolytic cell 15 are discharged from the water purifier.

[0048] Reference Figure 1 and Figure 3 Furthermore, in order to facilitate the installation of the internal components of the water purifier, the outer shell 1 of the water purifier has an upper chamber 23 and a lower chamber 24 located below the upper chamber 23, and a partition plate 25 is provided between the upper chamber 23 and the lower chamber 24 to separate the two. The upper chamber 23 is used for installing the primary filter element assembly 4, and the lower chamber 24 is used for installing components in the water purifier that do not need to be frequently disassembled and replaced. A top cover 26 is provided on the top of the outer shell 1, and the upper chamber 23 is covered by the top cover 26. A side cover 27 is provided on the side of the outer shell 1, and the lower chamber 24 is covered by the side cover 27.

[0049] The partition plate 25 has several mounting openings 28 extending through its upper and lower surfaces for mounting the primary filter element assembly 4. To install the primary filter element 4, the assembly is inserted from the upper chamber 23 into the lower chamber 24 through the mounting openings 28. A mounting bracket 29 is provided at the bottom of the partition plate 25 for abutting and securing the primary filter element 4. A placement channel 30 is defined within the bracket 29, which is aligned with the mounting openings 28 and mates with the primary filter element 4.

[0050] Reference Figure 4 The primary filter element assembly 4 includes a filter element housing 31 and a filter element cover 32. The filter element housing 31 is a hollow cylindrical body, in which the filter element is installed. The filter element housing 31 has a threaded portion 33, and the filter element cover 32 is threadedly connected to the threaded portion 33 to cover the filter element housing 31.

[0051] Reference Figure 4 and Figure 5 Furthermore, the threaded portion 33 has a locking groove 35 at the thread starting end 34, and a guide slope 36 at the end of the thread starting end 34. A locking block 37 is provided on the inner wall of the filter cover 32. When the filter cover 32 is installed on the filter housing 31 and is about to be tightened onto the filter housing 31, the locking block 37 moves along the guide slope 36 and slides into and engages with the locking groove 35, thereby preventing the filter cover 32 from falling off the filter housing 31.

[0052] Reference Figure 3 and Figure 4A limiting column 38 is provided at the bottom of the placement channel 30, and the limiting column 38 is arranged horizontally. When the filter element housing 31 is inserted into the placement channel 30 through the installation port 28, the top of the limiting column 38 can abut against the filter element housing 31 and limit the stroke of the filter element housing 31.

[0053] The limiting post 38 is coaxially provided with a threaded hole 39, and the bottom of the filter housing 31 is provided with a fixing hole 40. When the filter housing 31 abuts against the limiting post 38, the threaded hole 39 can be concentrically arranged with the fixing hole 40, and the filter housing 31 and the limiting post 38 can be fixed by screws.

[0054] Furthermore, positioning blocks 41 are evenly distributed around the circumference of the filter housing 31, and vertical positioning slots 42 are formed around the partition plate 25 around the mounting opening 28. These slots 42 are vertically defined and mate with the positioning blocks 41. When the filter housing 31 is installed in the mounting opening 28, the positioning blocks 41 can be vertically inserted into the slots 42. This allows the threaded holes 39 to align with the fixing holes 40, facilitating securement of the filter housing 31.

[0055] Reference Figure 1 and Figure 6 A locking structure is provided between the top cover 26 and the housing 1. The locking structure includes an insert 43, a locking member 44, a slot 45, and a locking groove 46. The insert 43 and the locking member 44 are respectively provided at both ends of the top cover 26. The slot 45 and the locking groove 46 are respectively provided at both ends of the top of the upper chamber 23. When the top cover 26 is installed on the housing 1, the insert 43 engages with the slot 45, and the locking member 44 engages with the locking groove 46.

[0056] Example 2:

[0057] Compared with Example 1, the hydrogen-rich water purifier of Example 2 has the same structure as Example 1 except for the structure of the locking member 44, which will not be described in detail here.

[0058] Reference Figure 7The locking member 44 includes a pressing plate 48, a return spring 49, a locking block 50, and a connecting rod 51. The housing 1 is provided with a driving slot 47 for a finger to be inserted into, and a mounting slot 52 is provided at the bottom of the top cover 26. The pressing plate 48 is rotatably mounted in the mounting slot 52. The pressing plate 48 has a pressing portion 53 for a finger to press and a driving portion 54 connected to the pressing portion 53. The return spring 49 is installed in the mounting slot 52 and always has a tendency to drive the driving portion 54 to rotate out of the mounting slot 52. The locking block 50 is rotatably mounted at the bottom of the top cover 26, and the locking block 50 has a locking portion 55 on both sides of the rotating shaft that is engaged with the locking slot 46 and a passive portion 56 that is driven to rotate by the driving portion 54. The connecting rod 51 is provided on the passive portion 56, and the end of the connecting rod 51 away from the passive portion 56 abuts against the driving portion 54. The end of the connecting rod 51 is magnetic, and a magnetic piece 57 is provided at the contact point between the driving portion 54 and the connecting rod 51 , so that the connecting rod 51 and the magnetic piece 57 are always magnetically attracted to each other.

[0059] The pressing plate 48 has a pressed state and a released state when rotating within the mounting slot 52. When a user inserts a finger into the mounting slot 52 and presses the pressing plate 48, the pressing plate 48 is in the pressed state, the driving portion 54 rotates into the mounting slot 52, compressing the return spring 49. The driving portion 54 drives the locking block 50 to rotate via the connecting rod 51, causing the locking portion 55 to disengage from the locking slot 46. At this time, the top cover 26 can be removed. When the user removes the finger from the mounting slot 52, the pressing plate 48 is in the released state, the return spring 49 drives the driving portion 54 to rotate out of the mounting slot 52, and the driving portion 54 drives the locking block 50 to rotate, causing the locking portion 55 to re-engage with the locking slot 46.

[0060] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A hydrogen-rich water purifier, comprising a housing (1) and a water purification waterway (2) arranged in the housing (1), wherein the water purification waterway (2) comprises, in sequence along the waterway direction, a primary filter element assembly (4), a water inlet solenoid valve (5), a booster pump (6), a reverse osmosis filter element (7), a first high-pressure switch (8), a post-activated carbon filter element (9), and a water outlet faucet (10), characterized in that: The invention also includes a hydrogen production circuit (3) connected to the reverse osmosis filter element (7) and the water outlet tap (10), wherein the hydrogen production circuit (3) includes a resin filter element (12), a regulating valve (14), an electrolyzer (15), a hydrogen mixing pump (16) and a second high-pressure switch (18) in sequence; and a water supply pipeline (19) for supplying water is also connected between the water inlet of the resin filter element (12) and the water inlet of the hydrogen mixing pump (16).

2. A hydrogen-rich water purifier according to claim 1, characterized in that: The resin filter element (12) and the first high-voltage switch (8) are provided with a solenoid valve (11) for supplying water into the hydrogen production circuit (3) to generate hydrogen bubble water.

3. A hydrogen-rich water purifier according to claim 1, characterized in that: It also includes a wastewater discharge end (20), the water outlet of the reverse osmosis filter element (7) is connected to the wastewater discharge end (20) through a wastewater solenoid valve (21), and the electrolytic cell (15) is connected to the wastewater discharge end (20) through a check valve (22).

4. A hydrogen-rich water purifier according to claim 1, characterized in that: The housing (1) comprises an upper chamber (23) and a lower chamber (24) located within the upper chamber (23); a partition plate (25) is provided between the upper chamber (23) and the lower chamber (24); the partition plate (25) is provided with mounting openings (28) through the upper and lower surfaces for inserting and installing the primary filter element assembly (4) from top to bottom; and a mounting frame (29) is provided on the bottom surface of the partition plate (25) for abutting and fixing the primary filter element assembly (4).

5. A hydrogen-rich water purifier according to claim 4, characterized in that: The mounting frame (29) has a placement channel (30) adapted to the primary filter element assembly (4), and a limiting column (38) is horizontally arranged at the bottom of the placement channel (30) and abuts against the bottom surface of the primary filter element assembly (4).

6. A hydrogen-rich water purifier according to claim 5, characterized in that: The limiting column (38) is coaxially provided with a threaded hole (39), and the bottom of the primary filter element assembly (4) is horizontally provided with a fixing through hole (40) which is concentrically arranged with the threaded hole (39) and is provided for screw fixing.

7. A hydrogen-rich water purifier according to claim 6, characterized in that: The primary filter element assembly (4) comprises a filter element housing (31) and a filter element cover (32) for covering the filter element housing (31); positioning blocks (41) are uniformly arranged around the circumference of the filter element housing (31); and the partition plate (25) is provided with a vertical positioning groove (42) around the circumference of the mounting opening (28) for the positioning blocks (41) to pass through so as to facilitate the engagement of the threaded hole (39) with the fixing through hole (40).

8. A hydrogen-rich water purifier according to claim 7, characterized in that: The filter element cover (32) is threadedly connected to the filter element housing (31); a locking block (37) is provided on the inner wall of the filter element cover (32); and the filter element housing (31) is provided with a locking groove (35) for the locking block (37) to be engaged and locked at the thread starting end (34), and a guiding inclined surface (36) for the locking block (37) to slide into the locking groove (35).

9. A hydrogen-rich water purifier according to claim 4, characterized in that: The top of the housing (1) is provided with a top cover (26) for covering the upper chamber (23), and the side of the housing (1) is provided with a side cover (27) for covering the lower chamber (24); one end of the top cover (26) is provided with an insert block (43); one end of the top of the upper chamber (23) is provided with a slot (45) for inserting the insert block (43); the top of the upper chamber (23) is provided with a locking groove (46) at an end away from the slot (45), and the top cover (26) is provided with a locking piece (44) that is snap-fitted with the locking groove (46) at an end away from the insert block (43).

10. A hydrogen-rich water purifier according to claim 9, characterized in that: The locking member (44) includes a pressing plate (48) rotatably mounted on the bottom of the top cover (26), a return spring (49) for driving the pressing plate (48) to return, a locking block (50) rotatably mounted on the bottom of the top cover (26) and cooperating with the locking groove (46), and a connecting rod (51) connected to the locking block (50) and cooperating with the pressing plate (48); The housing (1) is provided with a driving groove (47) for a finger to be inserted into and press the pressing plate (48); the bottom of the pressing plate (48) is provided with a magnetic sheet (57), and the end of the connecting rod (51) away from the locking block (50) is magnetically attracted to the magnetic sheet (57); the pressing plate (48) has a pressing state and a releasing state, and in the pressing state, the pressing plate (48) drives the locking block (50) to rotate and exit the locking groove (46); in the releasing state, the pressing plate (48) drives the locking block (50) to rotate and insert and lock in the locking groove (46).

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