Water purifying and drinking machine

Abstract

The utility model relates to a water purifying and drinking machine which comprises a machine body and further comprises a filter element and a lifting cover rotationally installed on the top of the filter element. A water inlet inserting column is arranged at the bottom of the filter element, a mounting groove is formed in the top of the machine body, a water outlet cavity is formed in the bottom of the mounting groove, the filter element is inserted into the mounting groove, and the water inlet inserting column is inserted into the water outlet cavity; a locking block is arranged on the side wall of the lifting cover, and a locking groove allowing the locking block to be rotationally inserted therein is formed in the inner wall of the mounting groove. After the water purifying and drinking machine is used for a period of time, a user can carry the lifting cover to rotate a certain angle, the locking block is withdrawn from the locking groove, then the filter element is directly taken out from the top of the machine body to be cleaned and replaced, and after cleaning is completed, the filter element is directly inserted into the mounting groove again and locked. The filter element is mounted outside the machine body, so that the complicated steps of detaching the machine body and then taking the filter element out of the machine body are avoided, and the filter element replacement mode is relatively simple.

Description

Technical Field

[0001] The present application relates to the technical field of water purifiers, and in particular to a water purifier. Background Art

[0002] The water purifier is a household water purification device with the characteristics of multi-level temperature control, no installation, and easy to move. Its working principle is mainly to filter and heat the tap water to the required temperature through filter element filtration and heating element heating to meet the different needs of users.

[0003] Chinese invention patent CN117100109A discloses a multifunctional water purifier, including a body, a water tank mounted on the body, a filter element mounted on the body, a water pump mounted on a connecting pipe between the water tank and the filter element, and an electric kettle located outside the body. The filter element in the above water purifier structure is integrated and installed inside the body. When the filter element needs to be replaced, the body of the water purifier needs to be disassembled, and then the filter element needs to be taken out of the body for replacement, which is inconvenient. Utility Model Content

[0004] In order to solve the problem that it is inconvenient to replace the filter element of a water purifier, the present application provides a water purifier.

[0005] The present application provides a water purifier, which adopts the following technical solution:

[0006] A water purifier comprises a body, a filter element and a lifting cover rotatably mounted on the top of the filter element; the bottom of the filter element is provided with a water inlet plug post, the top of the body is provided with a mounting groove and the bottom of the mounting groove is provided with a water outlet cavity, the filter element is plugged into the mounting groove and the water inlet plug post is plugged into the water outlet cavity; the side wall of the lifting cover is provided with a locking block, and the inner wall of the mounting groove is provided with a locking groove for rotatably inserting the locking block.

[0007] By adopting the above technical solution, the filter element is inserted into the installation slot. After the water purifier has been used for a period of time, the user can lift the cover and rotate it to a certain angle, withdraw the locking block from the locking slot, and then directly take out the filter element from the top of the body for cleaning and replacement. After cleaning, the filter element is directly reinserted into the installation slot and locked. Installing the filter element outside the body avoids the complicated steps of disassembling the body and then taking the filter element out of the body. The above method of replacing the filter element is relatively simple.

[0008] Optionally, the locking groove includes a locking channel and an entry channel, the locking channel is arranged along the circumference of the installation groove, and the entry channel is opened along the axial direction of the installation groove and penetrates into the entry channel.

[0009] By adopting the above technical scheme, the structural form of the locking groove is specifically disclosed, the locking block enters the locking channel from the entry channel along the axial direction of the installation groove, and then by rotating the lifting cover, the locking block can rotate circumferentially in the locking channel. Since the locking block is axially limited, the locking block is locked in the locking channel, and the locking block is not easy to withdraw from the locking channel. After the lifting cover is locked, the lifting cover can press the filter element in the installation groove, so that the filter element is not easy to fall out of the installation groove.

[0010] Optionally, the outer wall of the locking block has a locking convex strip, the mounting groove has a recessed groove in the locking channel, and the locking convex strip is snap-fitted with the recessed groove.

[0011] By adopting the above technical solution, when the locking block is locked in the locking channel, the locking convex strip on the locking block can be snapped into the recessed groove in the locking channel, so that the locking block is further locked, the locking block is not easy to rotate circumferentially, the filter element can be lifted and pressed more firmly in the installation cavity, and the connection between the water inlet plug and the water outlet cavity can be more stable.

[0012] Optionally, a positioning column is provided at the bottom of the filter element, and a positioning groove for inserting the positioning column is formed at the bottom of the installation groove.

[0013] By adopting the above technical solution, when the filter element and the lifting cover are inserted into the installation groove together, the water inlet plug of the filter element can cooperate with the water outlet cavity, and then the filter element is limited circumferentially through the plug-in cooperation of the positioning column and the positioning groove. When the lifting cover is rotated and the locking block is locked to the locking groove, the filter element is not easy to rotate synchronously with the lifting cover.

[0014] Optionally, a limiting portion is provided on the inner wall of the lifting cover, and the limiting portion includes a horizontal limiting strip provided along the circumference of the lifting cover and a vertical limiting strip provided along the axial direction of the lifting cover, and a limiting cavity is formed between the limiting portion and the inner wall of the lifting cover; a limiting block is provided on the circumference of the outer wall of the filter element, and the limiting block is rotationally limited in the limiting cavity, the side wall of the limiting block abuts against the vertical limiting strip, and the bottom surface of the limiting block abuts against the horizontal limiting strip;

[0015] The lifting cover has a first state and a second state. When the lifting cover is in the first state, the limiting block is limited in the limiting cavity, and the locking block withdraws from the locking channel; when the lifting cover is in the second state, the limiting block withdraws from the limiting cavity, and the locking block is locked in the locking channel.

[0016] By adopting the above technical solution, when the filter element is not inserted into the installation slot, the lifting cover and the filter element are connected by the limiting cooperation between the limiting block and the limiting cavity, and the user can lift the filter element through the lifting cover to insert or remove the filter element. When the filter element is inserted into the installation slot, the user can rotate the lifting cover to withdraw the limiting block of the lifting cover from the limiting cavity, and the locking block can be synchronously rotated and inserted into the locking slot, and the lifting cover can press the filter element so that the filter element is locked in the installation slot. In the above structure, the lifting cover has two functions of acting as a handle for the filter element and locking and pressing the filter element, and the two functions can be switched with each other, which is more practical.

[0017] Optionally, a circumferential angle required for the limiting block to exit from the limiting cavity is smaller than a circumferential angle required for the locking block to exit from the locking channel.

[0018] By adopting the above technical solution, after the filter element is inserted into the installation groove, since the circumferential angle required for the limit block to withdraw from the limit cavity is smaller than the circumferential angle required for the locking block to withdraw from the locking channel, when the locking block is rotated and locked in the locking channel, the limit block can be detached from the limit cavity, so that there is no direct connection between the handle and the filter element, and the handle only presses the filter element against the bottom surface of the installation groove.

[0019] Optionally, a water inlet channel is provided at the bottom of the water inlet plug column and a valve assembly for controlling water flow in and out is provided in the water inlet channel, the valve assembly comprising a fixed sleeve, a valve core slidably arranged in the fixed sleeve, and a driving spring;

[0020] The fixing sleeve is sealed and fixed in the water inlet channel, and the fixing sleeve is coaxially provided with a penetration channel;

[0021] The valve core includes an abutment portion located at one end of the penetration channel, a sealing portion located at the other end of the penetration channel, and a sliding portion connecting the abutment portion and the sealing portion and slidingly penetrating the penetration channel;

[0022] The driving spring is arranged in the penetration channel, and the driving spring abuts against the abutting part and drives the sealing part to seal and cover one end of the penetration channel; an abutting column is arranged in the water outlet cavity, and the abutting column abuts against the abutting part and drives the sealing part to open the penetration channel.

[0023] By adopting the above technical solution, when the filter element is not inserted into the installation slot, the sealing part closes the penetration channel under the drive of the driving spring, and the valve assembly is closed, so that dust is not easy to enter the filter element through the water inlet plug column. Only after the filter element is installed in the installation slot, the abutment column can drive the sealing part to open, and water can enter the filter element at this time, which is more convenient.

[0024] Optionally, the fixing sleeve has a fixing convex ring on its circumference, and the fixing convex ring is snap-fitted with the inner wall of the water inlet channel; a sealing ring is also provided between the fixing sleeve and the inner wall of the water inlet channel.

[0025] By adopting the above technical solution, the outer wall of the fixed sleeve and the water inlet channel are connected through the sealing ring and the fixed convex ring, so that the flowing water can only enter from the penetration channel, and is not easy to flow in from the outer wall of the fixed sleeve and the water inlet channel, thereby improving the sealing performance of the valve assembly.

[0026] Optionally, a handle portion is provided on the top of the carrying cover, and two side walls of the handle portion are recessed inward to form a handle cavity for inserting fingers.

[0027] Optionally, the machine body is further provided with a cover plate at the notch of the mounting slot.

[0028] By adopting the above technical solution, the cover plate can cover the entrance of the installation slot, so that dust is not easy to enter from the entrance when the water purifier is normally used, thereby keeping the installation slot clean and tidy.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. A water purifier, by opening an installation groove on the top of the machine body, the filter element can be directly inserted and installed in the installation groove, and locked by a locking structure. When removing the filter element, it only needs to be directly pulled out, which is relatively simple and practical;

[0031] 2. The handle and the filter element are also locked together through the limit block and the limit cavity. When the two are locked, the filter element can be lifted by the handle; when the limit block of the handle is withdrawn from the limit cavity and the locking block is rotated and inserted into the locking groove, the handle can press the filter element into the installation groove.

[0032] 3. By arranging a sealed valve assembly in the water inlet plug column, when the filter element is not inserted into the installation groove, the valve assembly will seal the water inlet plug column, and dust is not easy to enter the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an exploded view of a water purifier in an embodiment of the present application.

[0034] Figure 2 It is a cross-sectional view of the filter element in the embodiment of the present application.

[0035] Figure 3 It is a structural schematic diagram of the lifting cover in the embodiment of the present application.

[0036] Figure 4 It is a schematic diagram of the structure of the body in the installation groove in the embodiment of the present application.

[0037] Figure 5 yes Figure 2 A partial enlarged view of point A in the middle.

[0038] Description of reference numerals: 1, body; 11, mounting groove; 12, water outlet cavity; 13, abutment column; 14, positioning groove; 15, locking groove; 151, entry channel; 152, locking channel; 153, recessed groove; 2, filter element; 21, water inlet plug column; 22, water inlet channel; 23, limit block; 24, positioning column; 25, valve assembly; 251, fixing sleeve; 2511, penetration channel; 2512, fixing convex ring; 2513, Sealing ring; 2514, arrangement groove; 252, valve core; 2521, sealing part; 2522, abutment part; 2523, penetration part; 253, driving spring; 3, lifting cover; 31, arrangement cavity; 32, handle part; 321, handle cavity; 33, limiting part; 331, horizontal limiting strip; 332, vertical limiting strip; 333, limiting cavity; 34, locking block; 341, locking convex strip; 4, water tank; 5, kettle; 6, cover plate. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-5 This application is described in further detail.

[0040] The embodiment of the present application discloses a water purifier.

[0041] Reference Figure 1 A water purifier includes a body 1, a filter element 2 and a lifting cover 3. A water tank 4 and a kettle 5 are arranged on the body 1. A mounting groove 11 is provided on the top of the body 1, and the filter element 2 and the lifting cover 3 are installed in the mounting groove 11 after being matched. The water in the water tank 4 can be filtered by the filter element 2 and then enter the kettle 5 for use by the user. When replacing the filter element 2, the filter element 2 is directly taken out from the mounting groove 11, and the process is also relatively simple.

[0042] Reference Figure 1 and Figure 2 The filter element 2 is a cylinder. The bottom of the filter element 2 is provided with a water inlet plug 21, and the cross section of the water inlet plug 21 is oval. The bottom of the water inlet plug 21 is provided with a water inlet channel 22, which penetrates into the inside of the water inlet plug 21. There are three water inlet channels 22, which are spaced apart along the length direction of the water inlet plug 21.

[0043] Reference Figure 1 and Figure 3The lifting cover 3 is a hollow cylinder with an opening at the lower end, and has a cavity 31. A handle portion 32 for the user to hold is provided on the top of the lifting cover 3, and the handle portion 32 is in the shape of a long strip. Both sides of the handle portion 32 are recessed inward to form a handle cavity 321. When the user holds the lifting cover 3, the user's fingers can be embedded in the handle cavity 321, so that the user can hold the lifting cover 3 conveniently.

[0044] Reference Figure 1 and Figure 3 , the lifting cover 3 is arranged on the top of the filter element 2, and the end of the filter element 2 is inserted into the arrangement cavity 31. In order to facilitate the user to lift the filter element 2, a limiting structure is arranged between the filter element 2 and the lifting cover 3. A limiting block 23 is arranged circumferentially at the end of the filter element 2, and the limiting block 23 is a square block. The lifting cover 3 is provided with a limiting portion 33 on the inner wall of the arrangement cavity 31, and the shape of the limiting portion 33 is L-shaped, including a horizontal limiting strip 331 and a vertical limiting strip 332. The horizontal limiting strip 331 is arranged horizontally along the circumference of the arrangement cavity 31, and the vertical limiting strip 332 is arranged vertically along the axial direction of the arrangement cavity 31, and the end of the horizontal limiting strip 331 is connected to the end of the vertical limiting strip 332. A limiting cavity 333 is formed between the limiting portion 33 and the inner wall of the arrangement cavity 31. In this embodiment, the number of limiting structures is three, and they are evenly arranged circumferentially, so that the lifting cover 3 is locked on the filter element 2 more firmly.

[0045] Reference Figure 1 and Figure 3 When the top of the filter element 2 is inserted into the arrangement cavity 31, by rotating the lifting cover 3, the limit block 23 can slide horizontally into the limit cavity 333, and the side wall of the limit block 23 abuts against the vertical limit bar 332, and the bottom of the limit block 23 abuts against the horizontal limit bar 331, so that the lifting cover 3 is not easy to fall off from the end of the filter element 2.

[0046] Reference Figure 1 and Figure 4 The installation groove 11 is a cylindrical cavity, and the body 1 is provided with a water outlet cavity 12 at the bottom of the installation groove 11. The water outlet cavity 12 is an oval cavity. The bottom surface of the water outlet cavity 12 is provided with an abutment column 13, which is a cylindrical body and has a hole on the abutment column 13 for the water in the water tank 4 to flow out. There are three abutment columns 13, which are arranged at intervals on the bottom surface of the water outlet cavity 12.

[0047] Reference Figure 2 and Figure 4 , the filter element 2 is plugged into the installation groove 11. When the filter element 2 is inserted into the installation groove 11, the water inlet plug post 21 is simultaneously inserted into the water outlet cavity 12, and the abutment post 13 can be inserted into the water inlet channel 22. The abutment post 13 corresponds to the water inlet channel 22 one by one.

[0048] Reference Figure 2 and Figure 4The body 1 is also provided with a positioning groove 14 at the bottom of the installation groove 11, and the bottom of the filter element 2 is provided with a positioning column 24 that can be inserted into the positioning groove 14. When the filter element 2 is inserted into the installation groove 11, the positioning column 24 and the positioning groove 14 cooperate with each other, so as to facilitate the installation of the filter element 2 in the installation groove 11, and after the filter element 2 is installed in the installation groove 11, the filter element 2 is not easy to rotate due to the limitation of the positioning column 24.

[0049] Reference Figure 1 and Figure 4 In order to prevent the lifting cover 3 from being easily removed from the mounting groove 11 after being installed in the mounting groove 11, a locking structure is provided between the lifting cover 3 and the inner wall of the mounting groove 11. A locking block 34 is provided circumferentially on the outer wall of the lifting cover 3, and a locking groove 15 is provided circumferentially on the inner wall of the mounting groove 11 of the body 1. The locking groove 15 is L-shaped and includes an entry channel 151 and a locking channel 152. The entry channel 151 is vertically provided along the axial direction of the mounting groove 11 and penetrates to the top surface of the mounting groove 11. The locking channel 152 is horizontally provided along the circumference of the mounting groove 11, and one end of the locking channel 152 is connected to the tail of the entry channel 151.

[0050] Reference Figure 1 and Figure 4 When the filter element 2 and the lifting cover 3 are installed in the installation groove 11, the locking block 34 of the lifting cover 3 can slide vertically from the entry channel 151 to the locking channel 152, and by rotating the lifting cover 3, the locking block 34 can slide horizontally and be locked in the locking channel 152.

[0051] Reference Figure 3 and Figure 4 The outer wall of the locking block 34 has a locking ridge 341, and the mounting groove 11 is further provided with a recessed groove 153 in the locking channel 152. When the locking block 34 is locked in the locking channel 152, the locking ridge 341 is engaged with the recessed groove 153, further making it difficult for the locking block 34 to withdraw from the locking channel 152.

[0052] Combination Figure 1 , Figure 3 as well as Figure 4 , the circumferential angle required for the limit block 23 to exit from the limit cavity 333 is smaller than the circumferential angle required for the locking block 34 to exit from the locking channel 152. When the locking block 34 slides and locks in the locking channel 152, the limit block 23 can exit from the limit cavity 333. When the limit block 23 slides into the limit cavity 333, the locking block 34 can exit to the entry channel 151.

[0053] When the filter element 2 is installed in the installation groove 11, the lifting cover 3 has a first state and a second state. When the lifting cover 3 and the filter element 2 are inserted into the installation groove 11, the lifting cover 3 is in the first state, at which time the locking block 34 is in the entry channel 151, the limiting block 23 is limited in the limiting cavity 333, and the filter element 2 and the lifting cover 3 can be withdrawn from the installation groove 11 at any time. When the lifting cover 3 is in the second state, the locking block 34 slides and locks in the locking channel 152, and the limiting block 23 withdraws from the limiting cavity 333. At this time, the lifting cover 3 is locked in the installation groove 11 and the lifting cover 3 presses the filter element 2 in the installation groove 11, and the filter element 2 cannot be taken out of the installation groove 11. By rotating the lifting cover 3, the lifting cover 3 can be switched back and forth between the first state and the second state, which is more convenient.

[0054] Reference Figure 1 and Figure 5 In order to prevent dust from entering the filter element 2 from the water inlet channel 22 after the filter element 2 is removed from the installation groove 11, the filter element 2 is provided with a valve assembly 25 in the water inlet channel 22. The valve assembly 25 includes a fixed sleeve 251, a valve core 252 slidably inserted in the fixed sleeve 251, and a driving spring 253. The fixed sleeve 251 is a cylindrical sleeve, which is inserted in the water inlet channel 22. The fixed sleeve 251 is coaxially provided with a through channel 2511 for water to pass through. The outer wall of the fixed sleeve 251 is provided with a fixed convex ring 2512, and when the fixed sleeve 251 is installed in the water inlet channel 22, the fixed convex ring 2512 can be engaged with the water inlet channel 22. The outer wall of the fixed sleeve 251 is also provided with a sealing ring 2513, and the sealing ring 2513 can be pressed against the inner wall of the water inlet channel 22.

[0055] Reference Figure 1 and Figure 5 The valve core 252 includes a sealing portion 2521, an abutting portion 2522, and a penetration portion 2523 connecting the sealing portion 2521 and the abutting portion 2522. The sealing portion 2521 is a cylinder, and its diameter is larger than the inner diameter of the penetration channel 2511. The sealing portion 2521 is arranged at one end of the penetration channel 2511. The abutting portion 2522 is in the shape of a circular ring, and is arranged at the other end of the penetration channel 2511 away from the sealing portion 2521. The penetration portion 2523 is a cylindrical rod, which is slidably penetrated in the penetration channel 2511, and the length of the penetration portion 2523 is larger than the length of the penetration channel 2511.

[0056] Reference Figure 1 and Figure 5A placement groove 2514 is provided at one end of the penetration channel 2511 near the abutment portion 2522, and a driving spring 253 is disposed in the placement groove 2514. One end of the driving spring 253 abuts against the bottom of the placement groove 2514, and the other end abuts against the abutment portion 2522. The driving spring 253 drives the valve core 252 to slide in the penetration channel 2511 and drives the sealing portion 2521 to always have a tendency to block the penetration channel 2511.

[0057] Reference Figure 4 and Figure 5 When the filter element 2 is installed in the installation groove 11, the abutting column 13 can be inserted into the water inlet channel 22 and abut against the abutting portion 2522. The abutting column 13 can drive the valve core 252 to overcome the elastic force of the driving spring 253 and move toward the inside of the filter element 2, so that the sealing portion 2521 opens the penetration channel 2511, and the water in the water tank 4 can enter the filter element 2 through the penetration channel 2511.

[0058] Reference Figure 1 The body 1 is also provided with a cover plate 6 at the opening of the mounting groove 11. The cover plate 6 is adapted to the diameter of the mounting groove 11. The mounting groove 11 is covered by the cover plate 6, so that dust is not easy to enter the mounting groove 11, and the overall appearance of the water purifier is more beautiful.

[0059] Combination Figures 1 to 5 The disassembly and assembly steps of a water purifier in the embodiment of the present application are as follows:

[0060] 1. The user holds the lifting cover 3 and inserts the filter element 2 into the installation groove 11, and makes the positioning column 24 match with the positioning groove 14, and the outlet cavity matches with the water inlet plug column 21;

[0061] 2. Rotate the lifting cover 3 to the second state, at which time the limiting block 23 withdraws from the limiting cavity 333, the locking block 34 is locked in the locking channel 152, and the filter element 2 cannot be removed from the mounting groove 11;

[0062] 3. By rotating the lifting cover 3 in the opposite direction, the lifting cover 3 is switched from the second state to the first state. At this time, the limiting block 23 is limited in the limiting cavity 333, and the locking block 34 withdraws from the locking channel 152. At this time, the filter element 2 can be removed from the installation groove 11.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water purifier, comprising a body (1), characterized in that: It also comprises a filter element (2) and a lifting cover (3) rotatably mounted on the top of the filter element (2); the bottom of the filter element (2) is provided with a water inlet plug post (21); the top of the machine body (1) is provided with a mounting groove (11) and the bottom of the mounting groove (11) is provided with a water outlet cavity (12); the filter element (2) is plugged into the mounting groove (11) and the water inlet plug post (21) is plugged into the water outlet cavity (12); a locking block (34) is provided on the side wall of the lifting cover (3); and a locking groove (15) for rotatably inserting the locking block (34) is provided on the inner wall of the mounting groove (11).

2. A water purifier according to claim 1, characterized in that: The locking groove (15) comprises a locking channel (152) and an entry channel (151); the locking channel (152) is arranged along the circumference of the mounting groove (11); and the entry channel (151) is opened along the axial direction of the mounting groove (11) and penetrates into the entry channel (151).

3. A water purifier according to claim 2, characterized in that: The outer wall of the locking block (34) has a locking convex strip (341), the installation groove (11) is provided with a recessed groove (153) in the locking channel (152), and the locking convex strip (341) is engaged with the recessed groove (153).

4. A water purifier according to claim 3, characterized in that: A positioning column (24) is provided at the bottom of the filter element (2), and a positioning groove (14) for inserting the positioning column (24) is provided at the bottom of the installation groove (11).

5. A water purifier according to claim 4, characterized in that: The inner wall of the lifting cover (3) is provided with a limiting portion (33), the limiting portion (33) comprising a horizontal limiting strip (331) arranged along the circumference of the lifting cover (3) and a vertical limiting strip (332) arranged along the axial direction of the lifting cover (3), and a limiting cavity (333) is formed between the limiting portion (33) and the inner wall of the lifting cover (3); a limiting block (23) is arranged circumferentially on the outer wall of the filter element (2), the limiting block (23) is rotationally limited in the limiting cavity (333), the side wall of the limiting block (23) abuts against the vertical limiting strip (332), and the bottom surface of the limiting block (23) abuts against the horizontal limiting strip (331); The lifting cover (3) has a first state and a second state. When the lifting cover (3) is in the first state, the limiting block (23) is limited in the limiting cavity (333), and the locking block (34) is withdrawn from the locking channel (152); when the lifting cover (3) is in the second state, the limiting block (23) is withdrawn from the limiting cavity (333), and the locking block (34) is locked in the locking channel (152).

6. A water purifier according to claim 5, characterized in that: The circumferential angle required for the limiting block (23) to withdraw from the limiting cavity (333) is smaller than the circumferential angle required for the locking block (34) to withdraw from the locking channel (152).

7. The water purifier according to claim 1, characterized in that: A water inlet channel (22) is provided at the bottom of the water inlet plug column (21), and a valve assembly (25) for controlling water inflow and outflow is arranged in the water inlet channel (22), the valve assembly (25) comprising a fixed sleeve (251), a valve core (252) slidably arranged in the fixed sleeve (251), and a driving spring (253); The fixing sleeve (251) is sealed and fixed in the water inlet channel (22), and the fixing sleeve (251) is coaxially provided with a penetration channel (2511); The valve core (252) comprises an abutment portion (2522) located at one end of the penetration channel (2511), a sealing portion (2521) located at the other end of the penetration channel (2511), and a sliding portion connecting the abutment portion (2522) and the sealing portion (2521) and slidably penetrating the penetration channel (2511); The driving spring (253) is arranged in the penetration channel (2511), the driving spring (253) abuts against the abutting portion (2522) and drives the sealing portion (2521) to seal and cover one end of the penetration channel (2511); an abutting column (13) is arranged in the water outlet chamber (12), the abutting column (13) abuts against the abutting portion (2522) and drives the sealing portion (2521) to open the penetration channel (2511).

8. A water purifier according to claim 7, characterized in that: The fixing sleeve (251) has a fixing convex ring (2512) in the circumferential direction, and the fixing convex ring (2512) is snap-fitted with the inner wall of the water inlet channel (22); a sealing ring (2513) is also provided between the fixing sleeve (251) and the inner wall of the water inlet channel (22).

9. The water purifier according to claim 1, characterized in that: A handle portion (32) is provided on the top of the lifting cover (3), and two side walls of the handle portion (32) are recessed inwards to form a handle cavity (321) for inserting fingers.

10. The water purifier according to claim 1, characterized in that: The machine body (1) is also provided with a cover plate (6) at the notch of the mounting groove (11).

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