Water purifier capable of rotationally unlocking filter element

Abstract

The invention relates to a water purifier capable of rotatably unlocking a filter element. The technical problem that an existing filter element is low in replacement efficiency is solved. The water purifier is arranged in a telescopic track and comprises a water purifier shell, a filter element mounting frame is arranged in the water purifier shell, a filter element mounting cavity is formed in the filter element mounting frame, a filter element body is arranged in the filter element mounting cavity, and the lower end of the filter element body is provided with a filter element connector which is connected with a water inlet connector located in the lower end of the filter element mounting frame in an inserted mode and connected with the water inlet connector in a circumferential positioning mode. A rotary positioning seat is arranged at the upper end of the filter element body, a positioning groove is formed in the circumferential outer side of the rotary positioning seat, a mounting seat is arranged at the upper end of the filter element mounting frame, and a positioning block capable of being movably arranged in the radial direction of the rotary positioning seat is arranged in the mounting seat through an elastic movable mounting structure. The device has the advantages that the rotary positioning seat and the filter element mounting rack can be connected in an inserted manner through the positioning groove and the positioning block, and the connecting effect of the filter element mounting rack and the filter element body can be ensured. And the elastic jacking assembly can push the positioning block, so that the inserting effect between the positioning block and the positioning groove is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of water purifier equipment, and in particular relates to a water purifier with a rotating unlocking filter element. Background Art

[0002] Currently, most of the existing water purifiers use filter elements to deeply filter and purify water, and in order to ensure the filtering and purifying effect of the filter elements on water quality during long-term use, the filter elements need to be replaced regularly; however, most of the existing filter elements are installed and fixed by threaded connection or snap connection, among which the threaded connection method requires tools to lock the filter element, affecting the replacement efficiency of the filter element; and the snap connection method requires overcoming greater friction to lock or disassemble the filter element, affecting the user experience, and the replacement efficiency of the filter element is low.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a water purifier filter element quick-release structure and a water purifier [202310394207.0], which includes a support frame and a casing mounted on the support frame, and the first end of the support frame is provided with an elastic locking structure; the filter element can be inserted into the casing, and the first end of the filter element is provided with a locking part and an unlocking part corresponding to the elastic locking structure.

[0004] The above scheme solves the problem of low efficiency of existing filter element replacement to a certain extent, but the scheme still has many shortcomings. For example, the filter element is locked by a locking part at the bottom of the filter element and a locking block at the bottom of the casing. The locking mechanism is inconvenient to replace and maintain during long-term use, which affects the service life. In addition, the filter element is rotated by a handle, and the handle is easily damaged during long-term use, which affects the loading and unloading efficiency of the filter element. Summary of the invention

[0005] The object of the present invention is to provide a water purifier with a rotating unlocking filter element in view of the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a water purifier with a rotating unlocking filter element comprises a water purifier housing, a filter element mounting frame is arranged in the water purifier housing, at least one filter element mounting cavity is arranged in the filter element mounting frame, a filter element body is arranged in the filter element mounting cavity, a filter element interface is provided at the lower end of the filter element body, which is plugged into and circumferentially positioned with a water inlet interface at the lower end of the filter element mounting frame, a rotating positioning seat is provided at the upper end of the filter element body, at least one radially inwardly recessed positioning groove is provided on the circumferential outer side of the rotating positioning seat, and at least one filter element body body is provided at the upper end of the filter element mounting frame. A mounting seat is located on the circumferential outer side of the rotating positioning seat, and a positioning block is provided in the mounting seat through an elastic movable mounting structure, which can be movably arranged along the radial direction of the rotating positioning seat and is clamped in the positioning groove. The rotating positioning seat can drive the positioning groove to rotate, and when the rotating positioning seat is in the process of rotation, the positioning groove and the mounting seat are correspondingly arranged and the positioning block is plugged into the positioning groove, so that the filter element body and the filter element mounting frame can be plugged and connected to ensure the installation effect of the filter element body, and when the rotating positioning seat rotates, the positioning block is compressed and separated from the positioning groove through the elastic movable mounting structure, completing the disassembly of the filter element body and ensuring the disassembly efficiency of the filter element body.

[0007] In the above-mentioned water purifier with a rotating unlocking filter element, the number of the positioning grooves is two and they are symmetrically arranged on both sides of the rotating positioning seat. The rotating positioning seat and the filter element body are in a cylindrical structure whose shapes match and the rotating positioning seat and the filter element body are coaxially rotatably connected. An inwardly recessed groove is provided at the upper end of the rotating positioning seat, and a rotating handle that protrudes outward and matches the shape of the groove is integrally formed in the groove. The diameter of one end of the rotating handle is larger than that of the other end and both ends of the rotating handle have arc-shaped portions respectively. The groove can facilitate the user to hold the rotating handle, and the arc-shaped portion can increase the size of the rotating handle to facilitate user control.

[0008] In the above-mentioned water purifier with a rotating unlocking filter element, the number of the mounting seats is two and they are symmetrically arranged on both sides of the rotating positioning seat, and the positioning blocks in the mounting seats are respectively arranged one-to-one corresponding to the positioning grooves. The two mounting seats and the positioning blocks can ensure the connection stability between the filter element mounting frame and the filter element body.

[0009] In the above-mentioned water purifier with a rotary unlocking filter element, the elastic movable mounting structure includes an arc-shaped recessed portion arranged on the mounting seat near one end of the rotating positioning seat and matching the outer side of the rotating positioning seat, and the arc-shaped recessed portion is provided with a mounting channel arranged radially along the rotating positioning seat, one end of the positioning block is arranged in the mounting channel through a guide component and the other end is exposed to the mounting channel, and an elastic top-pressing component is provided between the positioning block and the mounting seat, which can adapt to the side of the rotating positioning seat through the arc-shaped recessed portion, and can facilitate the installation and placement of the positioning block through the mounting channel, and can drive the positioning block to extend through the elastic top-pressing component, and can limit the positioning block through the guide component to ensure that the positioning block can be displaced toward the rotating positioning seat and the plug-in effect is ensured.

[0010] In the above-mentioned water purifier with a rotating unlocking filter element, the guide assembly includes a plurality of guide ribs arranged at the inner bottom of the installation channel and extending axially along the installation channel, and the guide ribs are respectively in contact with the bottom of the positioning block. The guide ribs can guide the positioning block so that the positioning block can stably move toward the rotating positioning seat.

[0011] In the above-mentioned water purifier with a rotating unlocking filter element, the installation channel passes through one end of the installation seat away from the arc-shaped recessed portion, and the installation seat is provided with a slot connected to the installation channel, and a plug plate extending into the installation channel is inserted in the slot. The slot can facilitate the placement of the plug plate, and the plug plate can close the opening at one end of the installation channel to ensure that the positioning block can only be moved toward the other opening.

[0012] In the above-mentioned water purifier with a rotating unlocking filter element, the elastic top pressure assembly includes a top pressure spring arranged in the installation channel, one end of the top pressure spring acts on the spring installation hole in one end of the positioning block and the other end acts on the plug plate, the positioning block can be connected to the top pressure spring through the spring installation hole, and when the rotating positioning seat rotates, the positioning block extends inwardly and the top pressure spring is compressed, and when the positioning block and the positioning groove are correspondingly arranged, the top pressure spring drives the positioning block to move toward the positioning groove, thereby ensuring the plug-in effect between the positioning block and the positioning groove.

[0013] In the above-mentioned water purifier with a rotating unlocking filter element, the opening size of one end of the installation channel close to the arc-shaped recessed portion is smaller than the opening at the other end, and the two sides of one end of the positioning block located in the installation channel respectively have limiting portions that rest against the inner side of the opening of one end of the installation channel close to the arc-shaped recessed portion. The limiting portions can limit the displacement distance of the positioning block, and can effectively prevent the positioning block from leaving the installation channel, thereby ensuring the installation effect of the positioning block.

[0014] In the above-mentioned water purifier with a rotating unlocking filter element, the positioning groove is arc-shaped, and the depth of the positioning groove gradually decreases from the middle to the two ends, and the end of the positioning block exposed from the installation channel has a positioning portion matching the positioning groove. The positioning portion can improve the clamping effect with the positioning groove, thereby ensuring the plug-in stability between the filter element body and the filter element mounting frame.

[0015] In the above-mentioned water purifier with a rotating unlocking filter element, the upper end of the rotating positioning seat is closed and the lower end is open, the lower end of the rotating positioning seat abuts against the upper end surface of the filter element body, a first cylindrical body is coaxially provided on the circumferential inner side of the lower end of the rotating positioning seat, and a second cylindrical body is provided on the upper end of the filter element body coaxially arranged with the filter element body and located on the circumferential inner side of the first cylindrical body, the lower end of the first cylindrical body circumferentially has a first limiting portion bent inwardly, and the upper end of the second cylindrical body circumferentially has a second limiting portion bent outwardly and axially limited and in contact with the first limiting portion, the first cylindrical body and the second cylindrical body can be used to facilitate the positioning and placement of the rotating positioning seat and the filter element body, and the first limiting portion and the second limiting portion can ensure that the first cylindrical body and the second cylindrical body are connected by a card, and the connection stability between the filter element body and the filter element mounting frame can be ensured.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. The first limiting portion of the first cylindrical body and the second limiting portion of the second cylindrical body can ensure the connection stability between the rotating positioning seat and the filter element body.

[0018] 2. The rotating positioning seat can be plugged and connected to the filter element mounting frame through the positioning groove and the positioning block, and the connection effect between the filter element mounting frame and the filter element body can be ensured.

[0019] 3. When the rotating positioning seat rotates, the positioning block is compressed by the pressure spring through the elastic pressure assembly, and when the positioning groove corresponds to the positioning block, the pressure spring drives the positioning block to be inserted in the positioning groove, thereby ensuring the insertion effect between the positioning block and the positioning groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the filter element mounting frame in the present invention.

[0022] Figure 3 It is a structural sectional view of the filter element mounting frame in the present invention.

[0023] Figure 4 It is a structural explosion diagram of the elastic top pressure component in the present invention.

[0024] Figure 5It is a structural schematic diagram of the rotating positioning seat in the present invention.

[0025] In the figure: water purifier housing 1, filter element mounting frame 2, filter element mounting cavity 21, water inlet interface 22, mounting seat 23, slot 231, plug plate 232, filter element body 3, filter element interface 31, second cylindrical body 32, second limiting portion 321, rotating positioning seat 4, positioning groove 41, groove 42, rotating handle 43, arc portion 44, first cylindrical body 45, first limiting portion 451, elastic movable mounting structure 5, arc-shaped recessed portion 51, mounting channel 52, positioning block 6, limiting portion 61, positioning portion 62, guide assembly 7, guide rib 71, elastic top pressure assembly 8, top pressure spring 81, spring mounting hole 82. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the present invention is a water purifier with a rotating unlocking filter element, comprising a water purifier housing 1, a filter element mounting frame 2 is arranged in the water purifier housing 1, at least one filter element mounting cavity 21 is arranged in the filter element mounting cavity 21, a filter element body 3 is arranged in the filter element mounting cavity 21, the filter element body 3 can be conveniently positioned and placed through the filter element mounting cavity 21, the lower end of the filter element body 3 has a filter element interface 31 which is plugged with the water inlet interface 22 located at the lower end of the filter element mounting frame 2 and is circumferentially positioned and connected, the plug-in effect between the filter element body 3 and the filter element mounting frame 2 can be ensured through the water inlet interface 22 and the filter element interface 31, and the use effect of the filter element body 3 is ensured, the upper end of the filter element body 3 is provided with a rotating positioning seat 4 which is circumferentially rotated with the filter element body 3, and the rotating positioning seat 4 is provided with at least one radially inwardly recessed positioning groove on the circumferential outer side. 41. At least one mounting seat 23 is provided at the upper end of the filter element mounting frame 2 and is located on the circumferential outer side of the rotating positioning seat 4. A positioning block 6 that can be movably arranged along the radial direction of the rotating positioning seat 4 and is clamped in the positioning groove 41 is provided in the mounting seat 23 through an elastic movable mounting structure 5. The rotating positioning seat 4 can drive the positioning groove 41 to rotate. When the rotating positioning seat 4 is rotating, the positioning groove 41 is correspondingly arranged with the mounting seat 23 and the positioning block 6 is inserted in the positioning groove 41, so that the filter element 3 and the filter element mounting frame 2 can be plugged and connected to ensure the installation effect of the filter element 3. When the rotating positioning seat 4 rotates, the positioning block 6 is compressed and separated from the positioning groove 41 by the elastic movable mounting structure 5, and the disassembly of the filter element 3 is completed, thereby ensuring the disassembly efficiency of the filter element 3.

[0028] Specifically, there are two positioning grooves 41 and they are symmetrically arranged on both sides of the rotating positioning seat 4. The rotating positioning seat 4 and the filter element body 3 are in a cylindrical structure with matching shapes, and the rotating positioning seat 4 and the filter element body 3 are coaxially rotatably connected. There is an inwardly recessed groove 42 at the upper end of the rotating positioning seat 4, and a rotating handle 43 that protrudes outward and matches the shape of the groove 42 is integrally formed in the groove 42, which can improve the structural strength of the rotating handle 43 and improve the service life. The diameter of one end of the rotating handle 43 is larger than that of the other end, and both ends of the rotating handle 43 have arc-shaped portions 44 respectively. The groove 42 can facilitate the user to hold the rotating handle 43, and the arc-shaped portion 44 can increase the size of the rotating handle 43, which is convenient for the user to control.

[0029] Among them, there are two mounting seats 23 and they are symmetrically arranged on both sides of the rotating positioning seat 4, and the positioning blocks 6 in the mounting seats 23 are respectively arranged one by one with the positioning grooves 41. The connection stability between the filter element mounting frame 2 and the filter element body 3 can be ensured by the two mounting seats 23 and the positioning blocks 6.

[0030] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the elastic movable mounting structure 5 includes an arc-shaped recessed portion 51 which is arranged on one end of the mounting seat 23 close to the rotation positioning seat 4 and matches the outer side of the rotation positioning seat 4. A mounting channel 52 is arranged radially along the rotation positioning seat 4 in the arc-shaped recessed portion 51. One end of the positioning block 6 is arranged in the mounting channel 52 through a guide component 7 and the other end is exposed from the mounting channel 52. An elastic top-pressing component 8 is provided between the positioning block 6 and the mounting seat 23. The arc-shaped recessed portion 51 can be adapted to the side of the rotation positioning seat 4, and the mounting channel 52 can facilitate the installation and placement of the positioning block 6. The elastic top-pressing component 8 can drive the positioning block 6 to extend, and the guiding component 7 can limit the positioning block 6 to ensure that the positioning block 6 can be displaced toward the rotation positioning seat 4 to ensure the plug-in effect.

[0031] Furthermore, the guide assembly 7 includes a plurality of guide ribs 71 arranged at the inner bottom of the installation channel 52 and extending axially along the installation channel 52, and the guide ribs 71 are respectively in contact with the bottom of the positioning block 6. The guide ribs 71 can guide the positioning block 6 so that the positioning block 6 can be stably displaced toward the rotating positioning seat 4.

[0032] Among them, the installation channel 52 passes through one end of the installation seat 23 away from the arc-shaped recessed portion 51, and the installation seat 23 is provided with a slot 231 connected to the installation channel 52, and a plug plate 232 extending into the installation channel 52 is inserted in the slot 231. The plug plate 232 can be placed conveniently through the slot 231, and the opening at one end of the installation channel 52 can be closed by the plug plate 232, ensuring that the positioning block 6 can only be moved toward the other opening.

[0033] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the elastic pressing assembly 8 includes a pressing spring 81 arranged in the installation channel 52, one end of the pressing spring 81 acts on the spring installation hole 82 in one end of the positioning block 6 and the other end acts on the plug plate 232, the positioning block 6 can be connected to the pressing spring 81 through the spring installation hole 82, and when the rotating positioning seat 4 rotates, the positioning block 6 extends inward and the pressing spring 81 is compressed, and when the positioning block 6 and the positioning groove 41 are correspondingly arranged, the pressing spring 81 drives the positioning block 6 to move toward the positioning groove 41, thereby ensuring the plug-in effect between the positioning block 6 and the positioning groove 41.

[0034] Among them, the opening size of one end of the installation channel 52 close to the arc-shaped recessed portion 51 is smaller than the opening at the other end, and the two sides of one end of the positioning block 6 located in the installation channel 52 respectively have limiting portions 61 that abut against the inner side of the opening of one end of the installation channel 52 close to the arc-shaped recessed portion 51. The limiting portions 61 can limit the displacement distance of the positioning block 6, and can effectively prevent the positioning block 6 from detaching from the installation channel 52, thereby ensuring the installation effect of the positioning block 6.

[0035] Specifically, the positioning groove 41 is arc-shaped, and the depth of the positioning groove 41 gradually decreases from the middle to the two ends, and the end of the positioning block 6 exposed from the installation channel 52 has a positioning portion 62 that matches the positioning groove 41. The positioning portion 62 can improve the clamping effect with the positioning groove 41, thereby ensuring the plug-in stability between the filter element body 3 and the filter element mounting frame 2.

[0036] Combination Figure 3As shown, the upper end of the rotating positioning seat 4 is closed and the lower end is open, the lower end of the rotating positioning seat 4 abuts against the upper end surface of the filter element body 3, and a first cylindrical body 45 is coaxially provided on the circumferential inner side of the lower end of the rotating positioning seat 4, and a second cylindrical body 32 is coaxially provided with the filter element body 3 and located on the circumferential inner side of the first cylindrical body 45 at the upper end of the filter element body 3. The lower end of the first cylindrical body 45 has a first limiting portion 451 bent inwardly in the circumferential direction, and the upper end of the second cylindrical body 32 has a second limiting portion 321 bent outwardly in the circumferential direction and axially limited and contacted with the first limiting portion 451. The first cylindrical body 45 and the second cylindrical body 45 can facilitate the positioning and placement of the rotating positioning seat 4 and the filter element body 3, and the first limiting portion 451 and the second limiting portion 321 can ensure that the first cylindrical body 45 and the second cylindrical body 32 are connected by clamping, and the connection stability between the filter element body 3 and the filter element mounting frame 2 can be ensured.

[0037] The principle of this embodiment is that the filter element body 3 is set in the filter element mounting frame 2 through the filter element mounting 21 and the use efficiency of the filter element body 3 can be ensured through the water inlet interface 22 and the filter element interface 31, and the rotating positioning seat 4 is rotated to make the positioning groove 41 and the positioning block 6 correspond to each other, and the positioning block 6 can be connected to the rotating positioning seat 4 through the guide component 7 and the elastic top pressure component 8, and the rotating positioning seat 4 ensures the connectivity between the rotating positioning seat 4 and the filter element body 3 through the first limiting part 451 and the second limiting part 321, thereby ensuring the installation effect of the filter element body 3 and the filter element mounting frame 2.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0039] Although the present invention uses more terms such as water purifier housing 1, filter element mounting frame 2, filter element mounting cavity 21, water inlet interface 22, mounting seat 23, slot 231, plug plate 232, filter element body 3, filter element interface 31, second cylindrical body 32, second limiting portion 321, rotating positioning seat 4, positioning groove 41, groove 42, rotating handle 43, arc portion 44, first cylindrical body 45, first limiting portion 451, elastic movable mounting structure 5, arc-shaped recessed portion 51, mounting channel 52, positioning block 6, limiting portion 61, positioning portion 62, guide assembly 7, guide rib 71, elastic top pressure assembly 8, top pressure spring 81, spring mounting hole 82, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A water purifier with a rotating unlocking filter element, comprising a water purifier housing (1), a filter element mounting frame (2) being provided in the water purifier housing (1), at least one filter element mounting cavity (21) being provided in the filter element mounting frame (2), a filter element body (3) being provided in the filter element mounting cavity (21), a filter element interface (31) being plugged into and circumferentially positioned and connected to a water inlet interface (22) located at the lower end of the filter element mounting frame (2), characterized in that: The upper end of the filter element (3) is provided with a rotating positioning seat (4) which is circumferentially rotatable with the filter element (3); the circumferential outer side of the rotating positioning seat (4) is provided with at least one radially inwardly recessed positioning groove (41); the upper end of the filter element mounting frame (2) is provided with at least one mounting seat (23) which is located circumferentially outer side of the rotating positioning seat (4); and a positioning block (6) which can be movably arranged along the radial direction of the rotating positioning seat (4) and is clamped in the positioning groove (41) is provided in the mounting seat (23) through an elastic movable mounting structure (5).

2. A water purifier with a rotating unlocking filter element according to claim 1, characterized in that: The number of the positioning grooves (41) is two and they are symmetrically arranged on both sides of the rotating positioning seat (4); the rotating positioning seat (4) and the filter element (3) are in a cylindrical structure with matching shapes, and the rotating positioning seat (4) and the filter element (3) are coaxially connected to each other; an inwardly recessed groove (42) is provided at the upper end of the rotating positioning seat (4); a rotating handle (43) protruding outward and matching the shape of the groove (42) is integrally formed in the groove (42); the diameter of one end of the rotating handle (43) is larger than that of the other end, and arc-shaped portions (44) are respectively provided at both ends of the rotating handle (43).

3. A water purifier with a rotating unlocking filter element according to claim 2, characterized in that: The number of the mounting seats (23) is two and they are symmetrically arranged on both sides of the rotating positioning seat (4), and the positioning blocks (6) in the mounting seats (23) are respectively arranged in one-to-one correspondence with the positioning grooves (41).

4. A water purifier with a rotating unlocking filter element according to claim 1, 2 or 3, characterized in that: The elastic movable mounting structure (5) comprises an arc-shaped recessed portion (51) arranged at one end of the mounting seat (23) close to the rotating positioning seat (4) and matching the outer side of the rotating positioning seat (4); a mounting channel (52) arranged radially along the rotating positioning seat (4) is arranged in the arc-shaped recessed portion (51); one end of the positioning block (6) is arranged in the mounting channel (52) through a guide component (7) and the other end is exposed from the mounting channel (52); and an elastic pressing component (8) is arranged between the positioning block (6) and the mounting seat (23).

5. A water purifier with a rotating unlocking filter element according to claim 4, characterized in that: The guide assembly (7) comprises a plurality of guide ribs (71) arranged at the bottom of the inner side of the installation channel (52) and extending axially along the installation channel (52), and the guide ribs (71) are respectively in contact with the bottom of the positioning block (6).

6. A water purifier with a rotating unlocking filter element according to claim 4, characterized in that: The installation channel (52) passes through one end of the installation seat (23) away from the arc-shaped recessed portion (51), and the installation seat (23) is provided with a slot (231) connected to the installation channel (52), and a plug plate (232) extending into the installation channel (52) is inserted into the slot (231).

7. A water purifier with a rotating unlocking filter element according to claim 6, characterized in that: The elastic pressing assembly (8) comprises a pressing spring (81) arranged in the installation channel (52), one end of the pressing spring (81) acts on a spring installation hole (82) in one end of the positioning block (6) and the other end acts on the plug plate (232).

8. A water purifier with a rotating unlocking filter element according to claim 4, characterized in that: The opening size of one end of the installation channel (52) close to the arc-shaped recessed portion (51) is smaller than the opening size of the other end, and both sides of one end of the positioning block (6) located in the installation channel (52) respectively have limiting portions (61) that abut against the inner side of the opening of one end of the installation channel (52) close to the arc-shaped recessed portion (51).

9. A water purifier with a rotating unlocking filter element according to claim 4, characterized in that: The positioning groove (41) is arc-shaped, and the depth of the positioning groove (41) gradually decreases from the middle to the two ends, and the end of the positioning block (6) exposed from the installation channel (52) has a positioning portion (62) matching the positioning groove (41).

10. A water purifier with a rotating unlocking filter element according to claim 2, characterized in that: The upper end of the rotating positioning seat (4) is closed and the lower end is open. The lower end of the rotating positioning seat (4) is against the upper end surface of the filter element (3). A first cylindrical body (45) is coaxially arranged on the inner side of the lower end of the rotating positioning seat (4). A second cylindrical body (32) is coaxially arranged with the filter element (3) and located on the inner side of the first cylindrical body (45) at the upper end of the filter element (3). The lower end of the first cylindrical body (45) has a first limiting portion (451) bent inwardly in the circumferential direction, and the upper end of the second cylindrical body (32) has a second limiting portion (321) bent outwardly in the circumferential direction and axially limited and in contact with the first limiting portion (451).

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