Mounting structure of filter element of water purifier and water purifier

Abstract

The utility model relates to a mounting structure of a filter element of a water purifier and the water purifier. The mounting structure comprises a base and a containing cavity with a top opening, the filter element is arranged in the accommodating cavity in a pluggable manner; the positioning part is arranged at the lower part of the peripheral wall of the filter element; the positioning rod transversely extends and is located on the peripheral side of the filter element, the positioning rod can move in a reciprocating mode in the transverse direction and is fixed relative to the base in the vertical direction, the positioning rod can move towards the filter element till the positioning part is locked, and the positioning rod can move in the direction away from the filter element till the positioning part is unlocked; the first elastic piece acts on the positioning rod, so that the positioning rod always keeps a trend of moving towards the filter element; the unlocking assembly is used for driving the positioning rod to move in the direction away from the filter element. The filter element is mounted or dismounted through the action of pressing the filter element, operation is single and easy, misremembering is not prone to occurring, and the structure is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, and in particular to an installation structure of a filter element of a water purifier and a water purifier. Background Art

[0002] A water purifier is a water treatment device that deeply filters and purifies water according to the requirements for water use. A water purifier can effectively filter out rust, sand, colloids in the water, and absorb residual chlorine, odor, discoloration, pesticides and other chemical agents in the water, as well as bacteria, germs, toxins, heavy metals and other impurities in the water. The filter element is the core component of the water purifier and is used to filter water. When the filter element is in use, as time goes by, impurities in the water will clog the filter element, greatly reducing the filtering capacity of the filter element, and the filter element needs to be replaced regularly. Therefore, the filter element in the current water purifier is usually set to be detachably installed on the filter element base.

[0003] As disclosed in the Chinese utility model patent "Filter Cartridge Installation Structure and Water Purifier for Water Purifier" with patent number CN202222182154.X (publication number CN218853642U), when the filter cartridge is inserted into the recessed portion of the base, the water inlet on the filter cartridge is connected to the interface on the connecting piece, so that the water path between the inner chamber of the filter cartridge and the base is connected, and the projection of the limiter on the horizontal plane along the vertical direction at least partially overlaps with the projection of the first convex portion on the horizontal plane along the vertical direction, so as to restrict the filter cartridge to the recessed portion of the base. At this time, the filter cartridge is in the first state, and the filter cartridge is switched to the second state by rotating it when the filter cartridge is removed.

[0004] It can be seen that this patent achieves filter element installation by inserting the filter element downward on the base, and achieves filter element removal by rotating the filter element. The removal and assembly actions are different, and the operator is prone to make mistakes, which affects the removal and assembly of the filter element. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a filter element installation structure for a water purifier in which installation and removal are both achieved by pressing actions in view of the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a water purifier using the above-mentioned installation structure in view of the current status of the prior art.

[0007] The utility model solves the above-mentioned first technical problem by adopting a technical solution: a filter element installation structure of a water purifier, comprising:

[0008] A base having a receiving cavity with an open top;

[0009] A filter element is inserted and removed and is disposed in the accommodating cavity;

[0010] It is characterized by that it also includes

[0011] A positioning portion, disposed at the lower portion of the outer peripheral wall of the filter element;

[0012] A positioning rod extending transversely and located on the peripheral side of the filter element, the positioning rod can reciprocate in the transverse direction and is fixed relative to the base in the vertical direction, the positioning rod can move toward the filter element to lock the positioning portion, and the positioning rod can move in a direction away from the filter element to unlock the positioning portion;

[0013] A first elastic member acts on the positioning rod so that the positioning rod always maintains a tendency to move toward the filter element;

[0014] An unlocking assembly is used to drive the positioning rod to move away from the filter element. The unlocking assembly includes

[0015] An actuating block is arranged on the outer peripheral wall of the filter element;

[0016] A locking member, disposed on the base;

[0017] A moving rod, which extends vertically and is movable up and down on the base, and the moving rod and the actuating block are arranged correspondingly in the vertical direction; the moving rod can move downward to a first position where it is locked relative to the locking member, when the moving rod is in the first position, the positioning rod is locked relative to the positioning portion, and the moving rod can move downward to a second position where it is unlocked from the locking member, wherein the second position is located below the first position;

[0018] The second elastic member acts on the moving rod so that the moving rod always maintains a tendency to move upward, and the positioning rod can be driven to move in a direction away from the filter element during the upward movement of the moving rod.

[0019] In order to lock or unlock the moving rod and the base, the locking piece is arranged at the bottom of the base, and a locking hook is connected to the lower part of the moving rod. The moving rod is relatively locked or unlocked with the locking piece through the locking hook.

[0020] Preferably, the locking member is provided with a guide groove, the guide groove comprising a vertical groove extending vertically and a transverse groove extending transversely, one end of the transverse groove is connected with the lower end of the vertical groove, and the portion of the locking member located in the area enclosed by the transverse groove and the vertical groove is called a locking block;

[0021] The upper end of the locking hook is installed on the lower part of the moving rod by rotating around an axis extending in the horizontal direction. The lower end of the locking hook has a hook portion that can slide along the guide groove. When the moving rod is in the first position, the hook portion abuts against the bottom wall of the locking block. At this time, the moving rod and the locking piece are relatively fixed; and there is a spacing between the hook portion and the transverse groove, otherwise the moving rod cannot move down to the second position.

[0022] In order for the hook to reliably abut against the bottom wall of the locking block, a locking groove in which the hook can be accommodated is provided on the bottom wall of the locking block, and the locking groove can prevent the hook from being displaced in the lateral direction.

[0023] Preferably, a notch is provided at the connection between the vertical groove and the transverse groove, and the wall surface of the notch facing the vertical groove presents a fourth inclined surface inclined from bottom to top toward the locking groove, and the notch plays a guiding role, so that the hook moves toward the locking groove.

[0024] The structure is simple, the positioning part is a buckle foot arranged on the peripheral wall of the filter element, and the positioning rod can be pressed against the upper surface of the positioning part, thereby realizing relative locking of the two.

[0025] In order to enable the buckle foot to move downward over the positioning rod, the outer wall surface of the buckle foot and the end wall surface of the positioning rod facing the filter element are both first inclined surfaces inclined from top to bottom toward the filter element. In this way, when the filter element moves downward, the buckle foot squeezes the positioning rod to move away from the filter element, and after the filter element moves downward, the positioning rod is reset under the action of the first elastic member.

[0026] In order to drive the positioning rod to move away from the filter element during the upward movement of the moving rod, the positioning rod is provided with a through hole for the moving rod to pass through, and a first protrusion is provided in the through hole. The first protrusion is located on the side of the moving rod facing away from the filter element, and the bottom wall of the first protrusion is a second inclined surface inclined from top to bottom in the direction away from the filter element. A second protrusion is provided on the side wall of the moving rod, and the top wall of the second protrusion is a third inclined surface inclined from top to bottom in the direction away from the filter element, and the third inclined surface can be against the second inclined surface. During the upward movement of the moving rod, the third inclined surface will squeeze the second inclined surface, forcing the positioning rod to move in the direction away from the filter element, thereby releasing the lock on the positioning part.

[0027] In order to limit the movement of the positioning rod toward the filter element, a first limiting member is provided on the base, and a limiting block is provided at the end of the positioning rod. When the positioning rod and the positioning portion are locked, the limiting block abuts against the first limiting member, and the first limiting member is located on the path of the positioning rod moving toward the filter element.

[0028] In the above scheme, the base includes a base and a cylinder arranged on the top of the base, the base has an inner cavity inside, and a through hole connecting the inner cavity and the cylinder is provided on the top wall of the base, the interior of the cylinder and the inner cavity together constitute the accommodating cavity, the lower part of the filter element can pass through the through hole to enter or move out of the inner cavity, and the positioning rod is arranged in the inner cavity.

[0029] The technical solution adopted by the utility model to solve the second technical problem is: a water purifier, characterized in that it includes the above-mentioned installation structure.

[0030] Compared with the prior art, the utility model has the following advantages: when the moving rod of the utility model moves downward to the first position, the moving rod and the locking piece on the base are relatively locked, and the positioning rod locks the positioning part on the filter element; when the moving rod moves downward to the second position, the moving rod and the locking piece on the base are unlocked, and when the moving rod moves upward, the positioning rod can be driven to move in a direction away from the filter element, so that the positioning rod unlocks the positioning part on the filter element;

[0031] When installing the filter element, press the filter element downward, and the moving rod will be pushed downward during the downward movement of the filter element. When the moving rod moves downward to the first position, the positioning rod locks the positioning part on the filter element, and the installation of the filter element is completed;

[0032] When the filter element needs to be removed, the filter element is pressed downward. During the downward movement of the filter element, the moving rod is pushed downward to the second position. At this time, the moving rod is moved upward under the action of the second elastic member. When the moving rod moves upward, it can drive the positioning rod to move away from the filter element, so that the positioning rod unlocks the positioning part on the filter element. In addition, during the upward movement of the moving rod, it will abut against the actuating block, which will also push the filter element upward. At this time, the filter element can be easily removed.

[0033] It can be seen from the above that whether it is installing or removing the filter element, it is all achieved by pressing the filter element. The operation is single and simple, not easy to remember wrong, and the structure is stable and reliable. In addition, the utility model can replace the filter element by pressing the filter element, and there are no other redundant buttons on the outer surface of the whole machine. In addition, the utility model adopts a method of straight up and down plugging and pulling out the filter element, which can ensure the stability of the filter element seal and is not prone to water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0035] Figure 2 for Figure 1 Sectional view of (initial state);

[0036] Figure 3 for Figure 2 A in the enlarged view;

[0037] Figure 4 for Figure 2 A schematic diagram of the cooperation between the lock hook and the locking member;

[0038] Figure 5 It is a cross-sectional view of an embodiment of the utility model (the moving rod is in the first position);

[0039] Figure 6 for Figure 5 The enlarged view of point B in the figure;

[0040] Figure 7 for Figure 5A schematic diagram of the cooperation between the lock hook and the locking member;

[0041] Figure 8 for Figure 5 A cross-sectional view of the middle base;

[0042] Fig. 9 It is a cross-sectional view of an embodiment of the utility model (the moving rod is in the second position);

[0043] Fig.10 for Fig. 9 The enlarged view of point C in the figure;

[0044] Fig.11 for Fig. 9 A schematic diagram of the cooperation between the lock hook and the locking member;

[0045] Fig.12 It is a cross-sectional view of an embodiment of the utility model (the second protrusion presses the first protrusion);

[0046] Fig.13 for Fig.12 The enlarged view of point D in the figure;

[0047] Fig.14 for Fig.12 Schematic diagram of the matching of the lock hook and the locking piece. DETAILED DESCRIPTION

[0048] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0049] The water purifier of this preferred embodiment includes a filter element installation structure of the water purifier, such as Figures 1 to 14 As shown, the installation structure of the filter element of the water purifier of this preferred embodiment includes a base 1, a filter element 2, a positioning rod 3, a first elastic member 31, and an unlocking assembly.

[0050] like Figure 2 , 3 As shown, the base 1 has a receiving cavity 11 with an open top, the base 1 can be installed in the housing of the water purifier, the filter element 2 is pluggable and arranged in the receiving cavity 11, the lower part of the outer peripheral wall of the filter element 2 is provided with a positioning portion 21, the positioning rod 3 extends laterally and is located on the peripheral side of the filter element 2, the positioning rod 3 can reciprocate in the horizontal direction and is fixed relative to the base 1 in the vertical direction, the positioning rod 3 can move toward the filter element 2 to lock the positioning portion 21, and the positioning rod 3 can move in the direction away from the filter element 2 to unlock the positioning portion 21.

[0051] The first elastic member 31 acts on the positioning rod 3, so that the positioning rod 3 always maintains a tendency to move toward the filter element 2. In this embodiment, the first elastic member 31 is a transversely extending spring, one end of which abuts against the positioning rod 3 and the other end abuts against the base 1.

[0052] like Figure 8 As shown, a first limiting member 12 is provided on the base 1, and a limiting block 32 is provided at the end of the positioning rod 3. When the positioning rod 3 locks the positioning portion 21, the limiting block 32 abuts against the first limiting member 12, and the first limiting member 12 is located on the path of the positioning rod 3 moving toward the filter element 2. At this time, the positioning rod 3 cannot continue to move toward the filter element 2.

[0053] A second limiting member 10 abutting against the positioning rod 3 may be provided in the vertical direction, so as to fix the positioning rod 3 in the vertical direction.

[0054] like Figure 3 As shown, the unlocking assembly is used to drive the positioning rod 3 to move in a direction away from the filter element 2 , and the unlocking assembly includes an actuating block 4 , a locking member 5 , a moving rod 6 and a second elastic member 60 .

[0055] The locking member 5 is disposed on the base 1, and the moving rod 6 is vertically extended and can be moved up and down on the base 1. The moving rod 6 can move downward to a first position where it is locked relative to the locking member 5, such as Figure 5 As shown, when the moving rod 6 is in the first position, the positioning rod 3 and the positioning portion 21 are relatively locked, as shown in FIG. Fig. 9 As shown, the moving rod 6 can move downward to a second position unlocked from the locking member 5, wherein the second position is located below the first position.

[0056] The actuating block 4 is disposed on the outer peripheral wall of the filter element 2 , and the moving rod 6 and the actuating block 4 are disposed correspondingly in the vertical direction, so that when the filter element 2 moves downward, the moving rod 6 can be driven to move downward.

[0057] The second elastic member 60 acts on the moving rod 6, so that the moving rod 6 always maintains a tendency to move upward, and the positioning rod 3 can be driven to move away from the filter element 2 during the upward movement of the moving rod 6. In this embodiment, the second elastic member 60 is a spring extending vertically, one end of which is against the moving rod 6 and the other end is against the base 1.

[0058] In this embodiment, the locking member 5 is disposed at the bottom of the base 1 , and a locking hook 7 is connected to the lower portion of the moving rod 6 , and the moving rod 6 is locked or unlocked relative to the locking member 5 via the locking hook 7 .

[0059] like Figure 4 , 7 As shown in Figures 11 and 14, a guide groove 51 is provided on the locking member 5, and the guide groove 51 includes a vertical groove 511 extending vertically and a transverse groove 512 extending transversely, one end of the transverse groove 512 is connected with the lower end of the vertical groove 511, and the portion of the locking member 5 located in the area enclosed by the transverse groove 512 and the vertical groove 511 is called a locking block 52, and a locking groove 521 is provided on the bottom wall of the locking block 52.

[0060] The upper end of the lock hook 7 is mounted on the lower part of the moving rod 6 by rotating around an axis extending in the horizontal direction. The lower end of the lock hook 7 has a hook portion 71 that can slide along the guide groove 51. When the moving rod 6 is in the first position, the hook portion 71 abuts against the bottom wall of the locking block 52, and the hook portion 71 is accommodated in the locking groove 521. At this time, the moving rod 6 and the locking member 5 are relatively fixed. In addition, a notch 513 is provided at the junction of the vertical groove 511 and the horizontal groove 512. The wall surface of the notch 513 facing the vertical groove 511 is a fourth inclined surface 514 inclined from bottom to top toward the locking groove 521. The notch 513 plays a guiding role, so that the hook portion 71 moves toward the locking groove 521.

[0061] When the hook portion 71 of the locking hook 7 is accommodated in the locking groove 521 , there is a distance between the hook portion 71 and the transverse groove 512 , otherwise the moving rod 6 cannot move downward to the second position.

[0062] In this embodiment, Figure 3 , 6 As shown, the positioning portion 21 is a buckle foot provided on the peripheral wall of the filter element 2, and the positioning rod 3 can be pressed against the upper surface of the positioning portion 21. In this state, the two are relatively locked.

[0063] The outer wall surface of the buckle foot and the end wall surface of the positioning rod 3 facing the filter element 2 both present a first inclined surface 211 that tilts from top to bottom toward the filter element 2, so that when the filter element 2 moves downward, the buckle foot squeezes the positioning rod 3 to move away from the filter element 2. After the filter element 2 moves downward, the positioning rod 3 is reset under the action of the first elastic member 31.

[0064] In this embodiment, the moving rod 6 can drive the positioning rod 3 to move away from the filter element 2 during the upward movement of the moving rod 6 in the following manner: Figure 6 As shown, the positioning rod 3 is provided with a through hole 33 through which the moving rod 6 can pass, and a first protrusion 34 is provided in the through hole 33. The first protrusion 34 is located on the side of the moving rod 6 facing away from the filter element 2. The bottom wall of the first protrusion 34 is a second inclined surface 341 inclined from top to bottom in a direction away from the filter element 2. A second protrusion 61 is provided on the side wall of the moving rod 6. The top wall of the second protrusion 61 is a third inclined surface 611 inclined from top to bottom in a direction away from the filter element 2. The third inclined surface 611 can abut against the second inclined surface 341. When the moving rod 6 moves upward, the third inclined surface 611 will squeeze the second inclined surface 341, forcing the positioning rod 3 to move in a direction away from the filter element 2, thereby releasing the lock on the positioning portion 21.

[0065] In this embodiment, the base 1 includes a base 13 and a cylinder 14 arranged on the top of the base 13. The base 13 has an inner cavity 15, and a through hole 16 connecting the inner cavity 15 and the cylinder 14 is provided on the top wall of the base 13. The interior of the cylinder 14 and the inner cavity 15 together constitute an accommodating chamber 11. The lower part of the filter element 2 can pass through the through hole 16 to enter or move out of the inner cavity 15, and the positioning rod 3 is arranged in the inner cavity 15.

[0066] The disassembly and assembly process of the filter element 2 of this embodiment is as follows:

[0067] like Figure 3 , 4 As shown, in the initial state, the moving rod 6 is at the upper limit position under the action of the second elastic member 60, the positioning rod 3 is at the limit position moving toward the installation position of the filter element 2 under the action of the first elastic member 31, and the hook portion 71 of the locking hook 7 is at the upper end of the vertical groove 511 of the guide groove 51;

[0068] When installing the filter element 2, insert the filter element 2 downward into the accommodating cavity 11 on the base 1, and the actuating block 4 on the filter element 2 will push the moving rod 6 to move downward. During this process, the hook portion 71 of the locking hook 7 slides downward along the vertical groove 511 of the guide groove 51, and the positioning portion 21 of the filter element 2 passes over the end of the positioning rod 3 and is located below the positioning rod 3. When the moving rod 6 moves down to the first position, the hook portion 71 is limited in the locking groove 521 of the locking block 52 under the guiding action of the notch 513, and the third inclined surface 611 abuts against the second inclined surface 341; after water is passed, the filter element 2 will move up a certain distance under the action of the water pressure, and the positioning rod 3 presses on the upper surface of the positioning portion 21 to fix the filter element 2. Figure 6 , 7 As shown;

[0069] When disassembling the filter element 2, the filter element 2 is pressed downward, and the actuating block 4 pushes the moving rod 6 downward. When the moving rod 6 moves downward to the second position, Fig.10 , 11 As shown, the hook portion 71 of the lock hook 7 is located in the notch 513, the lock block 52 releases the lock on the lock hook 7, and the moving rod 6 moves upward under the action of the second elastic member 60. The third inclined surface 611 squeezes the second inclined surface 341, forcing the positioning rod 3 to move away from the filter element 2, thereby releasing the lock on the positioning portion 21, and in the process of the moving rod 6 moving upward, the filter element 2 is pushed upward, as shown in FIG. Fig.13 , 14 As shown, the filter element 2 can be easily pulled out from the accommodating cavity 11 .

[0070] It can be seen from the above that whether installing or removing the filter element 2, it is achieved by pressing the filter element 2, and the operation is simple and easy.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A filter element installation structure for a water purifier, comprising: A base (1) having a receiving cavity (11) with an open top; A filter element (2) is inserted and removed and arranged in the accommodating cavity (11); It is characterized in that Also includes A positioning portion (21) is provided at the lower portion of the outer peripheral wall of the filter element (2); A positioning rod (3) extending transversely and located on the peripheral side of the filter element (2), the positioning rod (3) being capable of reciprocating in the transverse direction and being fixed relative to the base (1) in the vertical direction, the positioning rod (3) being capable of moving toward the filter element (2) to lock the positioning portion (21), and the positioning rod (3) being capable of moving in a direction away from the filter element (2) to unlock the positioning portion (21); A first elastic member (31) acts on the positioning rod (3) so that the positioning rod (3) always maintains a tendency to move toward the filter element (2); An unlocking assembly is used to drive the positioning rod (3) to move in a direction away from the filter element (2), and the unlocking assembly includes An actuating block (4) is arranged on the outer peripheral wall of the filter element (2); A locking member (5) is arranged on the base (1); A moving rod (6) extends vertically and is arranged on the base (1) so as to be movable up and down, and the moving rod (6) and the actuating block (4) are arranged correspondingly in the vertical direction; the moving rod (6) can move downward to a first position where it is locked relative to the locking member (5); when the moving rod (6) is in the first position, the positioning rod (3) locks the positioning portion (21), and the moving rod (6) can move downward to a second position where it is unlocked from the locking member (5), wherein the second position is located below the first position; The second elastic member (60) acts on the moving rod (6) so that the moving rod (6) always maintains a tendency to move upward, and the positioning rod (3) can be driven to move in a direction away from the filter element (2) during the upward movement of the moving rod (6).

2. The mounting structure according to claim 1, characterized in that: The locking member (5) is arranged at the bottom of the base (1), and the lower part of the moving rod (6) is connected with a locking hook (7), and the moving rod (6) is relatively locked or unlocked with the locking member (5) via the locking hook (7).

3. The mounting structure according to claim 2, characterized in that: The locking member (5) is provided with a guide groove (51), the guide groove (51) comprising a vertical groove (511) extending vertically and a transverse groove (512) extending transversely, one end of the transverse groove (512) is connected to the lower end of the vertical groove (511), and the portion of the locking member (5) located in the area enclosed by the transverse groove (512) and the vertical groove (511) is called a locking block (52); The upper end of the locking hook (7) is mounted on the lower part of the moving rod (6) by rotating around an axis extending in the horizontal direction, and the lower end of the locking hook (7) has a hook portion (71) that can slide along the guide groove (51). When the moving rod (6) is in the first position, the hook portion (71) abuts against the bottom wall of the locking block (52), and there is a spacing between the hook portion (71) and the transverse groove (512).

4. The mounting structure according to claim 3, characterized in that: A locking groove (521) capable of accommodating the hook portion (71) is provided on the bottom wall of the locking block (52).

5. The mounting structure according to claim 3, characterized in that: A notch (513) is provided at the connection between the vertical groove (511) and the transverse groove (512), and a wall surface of the notch (513) facing the vertical groove (511) presents a fourth inclined surface (514) that is inclined from bottom to top toward the locking groove (521).

6. The mounting structure according to claim 1, characterized in that: The positioning portion (21) is a buckle foot provided on the peripheral wall of the filter element (2), and the positioning rod (3) can be pressed against the upper surface of the positioning portion (21), thereby achieving relative locking of the two.

7. The mounting structure according to claim 6, characterized in that: The outer wall surface of the buckle foot and the end wall surface of the positioning rod (3) facing the filter element (2) both present a first inclined surface (211) that is inclined from top to bottom toward the filter element (2).

8. The mounting structure according to any one of claims 1 to 7, characterized in that: The positioning rod (3) is provided with a through hole (33) through which the moving rod (6) can pass, and a first protrusion (34) is provided in the through hole (33). The first protrusion (34) is located on the side of the moving rod (6) facing away from the filter element (2). The bottom wall surface of the first protrusion (34) is a second inclined surface (341) inclined from top to bottom in a direction away from the filter element (2). The side wall of the moving rod (6) is provided with a second protrusion (61), and the top wall surface of the second protrusion (61) is a third inclined surface (611) inclined from top to bottom in a direction away from the filter element (2). The third inclined surface (611) can abut against the second inclined surface (341).

9. The mounting structure according to any one of claims 1 to 7, characterized in that: The base (1) is provided with a first limiting member (12), and the end of the positioning rod (3) is provided with a limiting block (32); when the positioning rod (3) and the positioning portion (21) are locked, the limiting block (32) abuts against the first limiting member (12), and the first limiting member (12) is located on a path where the positioning rod (3) moves toward the filter element (2).

10. The mounting structure according to any one of claims 1 to 7, characterized in that: The base (1) comprises a pedestal (13) and a cylinder (14) arranged on the top of the pedestal (13); the pedestal (13) has an inner cavity (15) inside, and a through hole (16) connecting the inner cavity (15) and the cylinder (14) is arranged on the top wall of the pedestal (13); the interior of the cylinder (14) and the inner cavity (15) together constitute the accommodating chamber (11); the lower part of the filter element (2) can pass through the through hole (16) to enter or move out of the inner cavity (15); and the positioning rod (3) is arranged in the inner cavity (15).

11. A water purifier, characterized in that: The invention comprises the mounting structure according to any one of claims 1 to 10.

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