CN211536831U

CN211536831U - Filter core dismouting structure and water purifier

Info

Publication number: CN211536831U
Application number: CN202020022258.2U
Authority: CN
Inventors: 郭建刚; 雷志鹏; 张绍振
Original assignee: Shunde Foshan Qingling Diecasting Product Co ltd
Current assignee: Shunde Foshan Qingling Diecasting Product Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-22
Anticipated expiration: 2030-01-06

Abstract

The utility model relates to a filter core dismouting structure and water purifier, filter core dismouting structure includes: a housing having a mounting hole at a top thereof; a filter element assembly removably mounted within the housing through the mounting aperture; the cartridge buckle assembly is installed at the top of the filter element assembly and comprises a driving piece and a driven piece, wherein the driven piece is symmetrically arranged on two sides of the driving piece and connected with the driving piece, the filter element assembly or the driving piece is arranged on the mounting hole, the axial movement of the mounting hole can drive the driven piece and the side wall of the shell are combined or separated to lock or unlock the filter element assembly and the shell. The utility model provides a filter core dismouting structure is through setting up the bullet knot subassembly at filter element group spare top, can need not rotatory mounting structure with the reliable dismouting of filter element group spare of through-type to can effectively prevent to leak, and improve the user and use experience.

Description

Filter core dismouting structure and water purifier

Technical Field

The utility model relates to a water purifier technical field, concretely relates to filter core dismouting structure and water purifier.

Background

Water purifier on the existing market is when changing filter element group spare, raw water source need be closed, after closing the water source, internal pressure and partial inside water still exist to the complete machine, however filter element/water route board subassembly seal the water structure need cooperate the rotatory auto-lock of filter element group spare to rotate with independent rotator part in the drive base subassembly (water route board subassembly) just can reach the purpose of sealing water, this in-process, rotatory filter element user experience degree is poor and the operation has improper inside water under the effect of internal pressure slightly, can spill over from base subassembly and filter element group spare, lead to the complete machine electrical part to appear unusual and unable operation, user experience is poor, and the degree of difficulty of after-sale maintenance has been increased.

Chinese patent application publication No. CN109731391A discloses a direct-insertion filter element structure and a water purification apparatus, in which a filter element is embedded in a filter base in a rotary fastening manner, and a rotary connection manner is adopted, so that liquid is easily overflowed during rotation, and the water purifier cannot normally operate.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem that prior art exists, the utility model aims to provide a filter core dismouting structure and water purifier, it can improve the filter core problem of leaking that leads to because of the renew cartridge at the in-process of installation filter core, and simple structure, easy dismounting can improve user and use experience.

In order to achieve the above object, the utility model provides a filter core dismouting structure, include:

the top of the shell is provided with a mounting hole;

a filter element assembly removably mounted within the housing through the mounting aperture;

the cartridge buckle assembly is installed at the top of the filter element assembly and comprises a driving piece and a driven piece, wherein the driven piece is symmetrically arranged on two sides of the driving piece and connected with the driving piece, the filter element assembly or the driving piece is arranged on the mounting hole, the axial movement of the mounting hole can drive the driven piece and the side wall of the shell are combined or separated to lock or unlock the filter element assembly and the shell.

The embodiment of the utility model provides a filter core dismouting structure is through setting up the bullet knot subassembly at filter element group spare top, can need not rotatory mounting structure with the reliable dismouting of through-type filter element group spare to can effectively prevent to leak, and improve the user and use experience.

In some embodiments, a buckling part is arranged on the periphery of the driven part, a clamping groove capable of being matched and clamped with the buckling part is arranged on the side wall of the shell, and when the filter element assembly is installed in the shell, the buckling part is clamped with the clamping groove so as to lock and fix the filter element assembly and the shell; dismantle during the filter element group spare, the driving piece can move down in order to drive the follower is along the perpendicular to the direction level of the central axis of mounting hole is inwards removed so that the buckling parts break away from the draw-in groove, thereby makes the filter element group spare with the casing is removed and is locked, and then will the filter element group spare is dismantled. Through the mutual joint cooperation of buckling parts and draw-in groove, can make filter element group spare and casing reliably be connected to when needs are dismantled, realize removing locking of filter element group spare and casing smoothly.

In some embodiments, the filter element assembly comprises a cylinder body and a filter element upper cover arranged at the top of the cylinder body, the filter element upper cover is in rotary melting connection with the cylinder body, the snap-lock assembly is arranged in the filter element upper cover, and two ends of the driven member penetrate through the side wall of the filter element upper cover;

the filter element assembly further comprises a lower cover matched with the filter element upper cover, and the lower cover is arranged opposite to the filter element upper cover and is fixedly connected with the filter element upper cover to form a containing cavity used for installing the elastic buckle assembly.

The filter element upper cover and the lower cover which are matched up from top to bottom form a containing cavity for installing the elastic buckle assembly, and the containing cavity is connected with the barrel in a rotary melting mode.

In some embodiments, the driving member includes a disk-shaped connecting member and a first spring connected to a bottom portion of the connecting member, and a pressing portion is provided at a center of the connecting member, and penetrates upper and lower surfaces of the connecting member and extends upward and downward by a certain distance. Through setting up the splenium of pressing at both ends about the through connection spare, one end is used for pressing, and the other end is used for connecting spring, and is rational in infrastructure, presses the convenience.

In some embodiments, the driven member is installed below the connecting member and symmetrically located at two sides of the pressing portion, the driven member includes a driven elastic buckle, a second spring and a connecting sleeve, the driven elastic buckle, the second spring and the connecting sleeve are sequentially arranged from outside to inside along a pressing direction perpendicular to the pressing portion, the connecting sleeve is arranged close to the pressing portion and has a certain distance from a side wall of the pressing portion, one end of the second spring is connected with the driven elastic buckle, and the other end of the second spring passes through the connecting sleeve and abuts against the side wall of the pressing portion. The spring can be guided by connecting the connecting sleeve with the spring, and the upper side, the lower side, the front side and the rear side of the spring can be limited by connecting the connecting sleeve with the spring, so that the horizontal deviation of the spring is prevented.

In some embodiments, the bottom surface of the connecting piece is provided with a pushing piece, and the outer side of the driven elastic buckle is provided with a concave part matched with the pushing piece. The bottom surface at the connecting piece sets up the impeller and with driven hasp cooperation, can drive driven hasp and inwards move, realize the effective unblock between filter element group spare and the casing.

In some embodiments, the pusher is a wedge-shaped structure having an inclined slope that cooperates with the concave portion to push the driven snapper to move horizontally. The inclined plane is matched with the driven elastic buckle, the principle of geometric mechanics is utilized, the structure is simple, and the pushing efficiency is high.

In some embodiments, a groove for mounting the first spring is formed in the bottom of the pressing portion, one end of the first spring abuts against the groove bottom of the groove, and the other end of the first spring abuts against the lower cover. The bottom of pressing the portion sets up the recess that is used for installing first spring to can lead to the flexible of first spring, prevent that it from moving the in-process skew, influence the installation effect.

The embodiment of the utility model provides a water purifier simultaneously, the water purifier includes foretell filter core dismouting structure. The water purifier adopts the straight-pushing type filter element dismounting structure, has simple structure, convenient dismounting and reliable fixing; simultaneously, the filter core of cooperation through-type seals water structure, can be when filter core assembly locking with the rivers passageway intercommunication, seal the rivers passageway when the filter core is dismantled, realizes two-way water of sealing, effectively prevents to leak to improve user experience.

In some embodiments, the water purifier further comprises a base assembly cooperating with the filter element assembly, the filter element assembly is detachably arranged on the base assembly through the shell, a first water flow channel is arranged in the filter element assembly, a second water flow channel corresponding to the first water flow channel is arranged in the base component, a first valve core component and a second valve core component which have the same structure and are oppositely arranged are respectively arranged in the first water flow channel and the second water flow channel, each valve core component comprises a valve core and a third spring sleeved on the valve core, when the filter element assembly is arranged on the base assembly, the first valve element assembly and the second valve element assembly interact to respectively compress the two third springs, the two valve cores are driven to move reversely, so that the first water flow channel is communicated with the second water flow channel; when the filter element assembly and the base assembly are disassembled and separated, the two third springs release elasticity to drive the two valve cores to reset so as to respectively seal the first water flow channel and the second water flow channel. The valve core assembly which is oppositely arranged from top to bottom is matched to realize automatic water sealing and effectively prevent water leakage, and the straight-through type dismounting structure is matched, so that the structure is simple, the dismounting is convenient, and the connection is reliable.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the embodiments of the invention. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

FIG. 1 is a schematic structural view of a filter element assembly and a base assembly according to an embodiment of the present invention;

FIG. 2 is a schematic, partially exploded view of a filter cartridge assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of a rear structure of the connector of FIG. 2;

FIG. 4 is a schematic view of a filter element assembly and housing in a locked position when the filter element assembly of an embodiment of the present invention is mounted to a base assembly;

fig. 5 is a schematic view of the filter element assembly and the housing in an unlocked state when the filter element assembly is detached from the base assembly according to the embodiment of the present invention.

Reference numerals:

1-shell, 101-mounting hole, 11-card slot;

2-filter element assembly, 21-cylinder, 211-guide part, 22-filter element upper cover, 221-mounting sleeve, 23-lower cover, 231-annular groove, 232-limit projection and 24-filter element;

3-snap assembly, 31-driving piece, 311-connecting piece, 3111-pressing piece, 3112-groove, 312-first spring, 313-pushing piece, 32-driven piece, 321-buckling piece, 322-driven snap, 3221-convex piece, 3222-concave piece, 323-second spring, 324-connecting sleeve;

4-sealing ring; 5-a base component;

601-first spool assembly, 602-second spool assembly, 61-spool, 62-third spring.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

Fig. 1 to 5 show the structure schematic diagram of the filter element dismounting structure of the embodiment of the present invention. As shown in fig. 1 to 5, an embodiment of the present invention provides a filter element dismounting structure, including:

the top of the shell 1 is provided with a mounting hole 101;

a filter element assembly 2 detachably mounted in the housing 1 through the mounting hole 101;

the snapping assembly 3 is installed at the top of the filter element assembly 2, the snapping assembly 3 comprises a driving member 31 and followers 32 symmetrically arranged on two sides of the driving member 31 and connected with the driving member 31, and the axial movement of the filter element assembly 2 or the driving member 31 along the installation hole 101 can drive the followers 32 to be combined with or separated from the side walls of the housing 1 so as to lock or unlock the filter element assembly 2 and the housing 1.

The filter element assembly 2 comprises a cylinder body 21 and a filter element upper cover 22 arranged at the top of the cylinder body 21, the filter element upper cover 22 is arranged at the top of the cylinder body 21 and is connected with the cylinder body 21 through a spin-melting process, the elastic buckle assembly 3 is of a push type structure and is arranged in the filter element upper cover 22, and the driven parts 32 at two sides of the elastic buckle assembly 3 can penetrate through the side wall of the filter element upper cover 22 to be combined with or separated from the side wall of the shell 1. The top of the cylinder 21 is closed to prevent water leakage.

The embodiment of the utility model provides a filter core dismouting structure is through setting up the bullet knot subassembly 3 in filter core upper cover 22, can need not rotatory mounting structure with the filter element subassembly 2 reliable dismouting of through-type to can effectively prevent to leak, and improve user's use and experience.

In some embodiments, the filter element assembly 2 further includes a lower cover 23 matched with the filter element upper cover 22, the lower cover 23 is arranged opposite to the filter element upper cover 22 and is fixedly connected with the filter element upper cover 22 through a fastening screw, and the filter element upper cover 22 and the lower cover 23 are matched to form an accommodating cavity for installing the snap-fastener assembly 3, so that the snap-fastener assembly 3 can be protected, and the reliability of the operation of the snap-fastener assembly 3 can be ensured. The lower cover 23 is fixedly connected with the filter element upper cover 22 and then fixedly connected with the filter element assembly 2 in a screwing mode. In other embodiments, the lower cover 23 and the upper cover 22 may be fixed and connected by other detachable means such as clamping. In this embodiment, adopt spiro union mode fixed connection, easy dismounting is fixed reliable.

Further, a sealing ring 4 is arranged between the side wall of the lower cover 23 and the side wall of the filter element upper cover 22 to connect the lower cover 23 and the filter element upper cover 22 in a sealing manner, and an annular groove 231 for installing the sealing ring 4 is arranged on the periphery of the lower cover 23. The filter element upper cover 22 and the lower cover 23 which are assembled into a whole are connected with the cylinder body 21 in a rotary melting way and sealed by the sealing ring 4, so that the water leakage of the filter element can be effectively prevented.

Specifically, as shown in fig. 4 and 5 and in cooperation with fig. 2, the periphery of the driven member 32 is provided with a buckling portion 321, the side wall of the housing 1 is provided with a clamping groove 11 which can be in adaptive clamping with the buckling portion 321, when the filter element assembly 2 is installed in the housing 1, the filter element assembly 2 is pushed into the housing 1 by pushing the filter element assembly 2 from the installation hole 101 at the top of the housing 1, and when the filter element assembly 2 moves down to a certain distance, the buckling portion 321 is clamped with the clamping groove 11 to lock and fix the filter element assembly 2 and the housing 1; when the filter element assembly 2 is disassembled, the driving member 31 can move downwards to drive the driven member 32 to move horizontally inwards in the direction perpendicular to the central axis of the mounting hole 101 so as to disengage the fastening part 321 from the clamping groove 11, so that the filter element assembly 2 is unlocked from the housing 1, and the filter element assembly 2 is disassembled and taken out.

As shown in fig. 2 and 4, the driving member 31 includes a coupling member 311 having a disk shape and a first spring 312 coupled to a bottom of the coupling member 311, a pressing portion 3111 is provided at a center of the coupling member 311, and the pressing portion 3111 penetrates upper and lower surfaces of the coupling member 311 and extends upward and downward by a certain distance. The upper surface of the pressing portion 3111 is a pressing operation surface, a groove 3112 for mounting the first spring 312 is provided at the bottom of the pressing portion 3111, one end of the first spring 312 abuts against the bottom of the groove 3112, and the other end of the first spring 312 abuts against the lower cover 23. The bottom of the pressing portion 3111 is spaced apart from the top of the barrel 21 by a predetermined distance so that when the driving member 31 is pressed, the driving member 31 can be moved downward by a predetermined distance, and the driving member 31 can be quickly returned by the first spring 312 after the external force applied to the pressing portion 3111 is removed.

The filter element upper cover 22 is provided with a mounting sleeve 221 matched with the pressing part 3111, the mounting sleeve 221 is formed by extending upwards from the top of the filter element upper cover 22 for a certain distance, and the central axis direction of the mounting sleeve 221 is the same as the pressing direction of the pressing part 3111 and the central axis direction of the mounting hole 101. In a specific implementation, when the first spring 312 is in a semi-compressed state, the pressing portion 3111 located above the connection member 311 can pass through the mounting sleeve 221, and the pressing operation surface is flush with the top of the mounting sleeve 221, so as to facilitate a manual pressing operation.

The follower 32 is installed below the connecting member 311 and symmetrically located at both sides of the pressing portion 3111, the follower 32 includes a driven elastic buckle 322, a second spring 323 and a connecting sleeve 324, which are sequentially arranged from outside to inside along a pressing direction (horizontal direction) perpendicular to the pressing portion 3111, the connecting sleeve 324 is arranged close to the pressing portion 3111 and has a certain distance from the sidewall of the pressing portion 3111, one end of the second spring 323 is connected with the driven elastic buckle 322, and the other end of the second spring 323 passes through the connecting sleeve 324 to abut against the sidewall of the pressing portion 3111. The driven elastic buckle 322 is provided with a convex portion 3221 for installing the second spring 323, the outer side of the driven elastic buckle 322 is provided with a buckling portion 321 (the side opposite to the convex portion 3221) to enable the elastic buckle assembly 3 to be clamped with the housing 1, so that the filter element assembly 2 and the housing 1 are locked and fixed, and the clamping grooves 11 are symmetrically arranged at the positions corresponding to the buckling portion 311 on the two sides of the housing 1.

As shown in fig. 3, the bottom surface of the connecting member 311 is provided with a pushing member 313, the outer side of the driven latch 322 is provided with a concave portion 3222 matched with the pushing member 313, and when the connecting member 311 moves downward, the pushing member 313 is driven to move downward, and contacts with the driven latch 322 to push the driven latch 322 to move horizontally inward.

Further, the pushing member 313 is a wedge-shaped structure and has an inclined surface, the inclined surface of the pushing member 313 is matched with the concave portion 3222, so that the driven latch 322 can be pushed to move inwards in a direction perpendicular to the pressing direction of the pressing portion 3111 and compress the second spring 323, the driven latch 322 moves inwards and horizontally, the buckling portion 321 is separated from the clamping groove 11, and the locking state of the housing 1 and the filter element assembly 2 is released, so that the filter element assembly 2 is replaced. In this embodiment, the driven elastic buckles 322 are symmetrically disposed on two sides of the driving member 31, the concave portions 3222 are symmetrically disposed on two sides of the fastening portion 321, and correspondingly, the bottom surface of the connecting member 311 is provided with four symmetrically disposed pushing members 313 to cooperate with the four concave portions 3222.

In some embodiments, as shown in fig. 2, 4 and 5, in order to ensure that the driven member 32 moves horizontally, a limiting protrusion 232 is provided on the lower cover 23, and the top of the limiting protrusion 232 is connected with the bottom of the connecting member 311 to limit the driven member 32 up and down to prevent any movement.

The embodiment of the utility model provides a concrete working process of filter core dismouting structure as follows:

as shown in fig. 4, when pushing the filter element assembly 2 into the housing 1 from the mounting hole 101 at the top of the housing 1, the driven latch 322 of the driven element 32 moves horizontally inward along the radial direction of the filter element assembly 2 (the filter element assembly 2 is entirely cylindrical) under the extrusion of the side wall of the housing 1, at this time, the second spring 323 is compressed by the extrusion, when pushing the filter element assembly 2 to move downward continuously, so that the fastening part 321 of the driven latch 322 moves to the position corresponding to the fastening groove 11 of the housing 1, the driven latch 322 moves horizontally outward along the direction perpendicular to the central axis of the mounting hole 101 under the tension of the second spring 323, so that the fastening part 321 extends into the fastening position of the fastening groove 11 to be fastened with the fastening groove 11, the filter element assembly 2 is locked and fixed with the housing 1, and the mounting of the filter element assembly 2 is completed.

It should be noted that, in the installation process of the filter element assembly 2, when the filter element assembly 2 is pushed into the housing 1, the driving member 31 may also be pressed at the same time, and the driving member 31 moves down to drive the driven latch 322 of the driven member 32 to horizontally move inwards along the radial direction of the filter element assembly 2 under the extrusion of the pushing member 313 of the driving member 31, so as to facilitate pushing the filter element assembly 2 into the housing 1, and improve the installation efficiency of the filter element.

As shown in fig. 5, when the filter element needs to be replaced, the pressing portion 3111 of the connecting member 311 is pressed, the connecting member 311 moves downward to drive the pushing member 313 mounted at the bottom of the connecting member 311 to move downward and axially, at this time, the inclined surface of the pushing member 313 is matched with the concave portion 3222 of the driven latch 322 to push the driven latch 322 to move inward and horizontally along the direction perpendicular to the central axis of the mounting hole 101, so that the fastening portion 321 is disengaged from the engaging groove 11, the fastening and locking state of the filter element assembly 2 and the housing 1 is released, after the fastening portion 321 is disengaged from the engaging groove 11, the external pressure applied to the pressing portion 3111 of the connecting member 311 is removed, the connecting member 311 can automatically bounce upward to reset under the tension of the first spring 312, and at the same time, the filter element assembly 2 is taken out of the housing 1 upward along the mounting hole 101.

In some embodiments, a fastening portion (a fastening protrusion facing the follower 32) may be disposed on the inner side wall of the two sides of the housing 1, and a groove capable of being fittingly fastened with the fastening portion may be disposed on the outer circumference of the follower 32, so as to lock or unlock the filter element assembly 2 with the housing 1.

Install filter core 24 in barrel 21, filter core 24's material can be the compound of one kind material or multiple material in PP cotton, sintering active carbon, milipore filter, RO membrane, pottery etc, the utility model discloses not specifically limited.

The embodiment of the utility model provides a still provide a water purifier, this water purifier includes foretell filter core dismouting structure.

In some embodiments, as shown in fig. 4 and 5, the water purifier further includes a base assembly (waterway plate assembly) 5 coupled to the filter cartridge assembly 2, and the filter cartridge assembly 2 is detachably mounted to the base assembly 5 through the housing 1. Specifically, install casing 1 in base component 5 earlier, install filter element group spare 2 in casing 1 and be connected with base component 1 from casing 1's top again and can accomplish the installation of filter element group spare 2, when changing filter element group spare 2, it can to take out filter element group spare 2 from casing 1's top.

The end of the cylinder 21 facing the base assembly 5 (the bottom of the cylinder 21) is provided with a guide 211 to guide the installation of the filter element assembly 2.

A first water flow channel is arranged in the cylinder body 21 of the filter element assembly 2, a second water flow channel corresponding to the first water flow channel is arranged in the base assembly 5, a first valve element assembly 601 and a second valve element assembly 602 which are identical in structure and oppositely arranged are respectively arranged in the first water flow channel and the second water flow channel, each valve element assembly comprises a valve element 61 and a third spring 62 sleeved on the valve element 61, and when the cylinder body 21 is arranged on the base assembly 5, the first valve element assembly 601 and the second valve element assembly 602 interact to respectively compress the two third springs 62 and drive the two valve elements 61 to move reversely so as to enable the first water flow channel and the second water flow channel to be communicated; when the cylinder 21 and the base component 5 are detached and separated, the two third springs 62 release elasticity to drive the two valve cores 61 to reset so as to respectively seal the first water flow channel and the second water flow channel, and thus automatic water sealing is realized.

The water purifier adopts the straight-pushing type filter element dismounting structure, has simple structure, convenient dismounting and reliable fixing; simultaneously, the filter core of cooperation through-type seals water structure, can be when filter core assembly locking with the rivers passageway intercommunication, seal the rivers passageway when the filter core is dismantled, realizes two-way water of sealing, effectively prevents to leak to improve user experience.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. A filter element dismounting structure is characterized by comprising:

the top of the shell is provided with a mounting hole;

2. The filter element dismounting structure according to claim 1, wherein a buckling portion is provided at an outer periphery of the driven member, a clamping groove capable of being fittingly engaged with the buckling portion is provided on a side wall of the housing, and when the filter element assembly is mounted in the housing, the buckling portion is engaged with the clamping groove to lock and fix the filter element assembly and the housing; dismantle during the filter element group spare, the driving piece can move down in order to drive the follower is along the perpendicular to the direction level of the central axis of mounting hole is inwards removed so that the buckling parts break away from the draw-in groove, thereby makes the filter element group spare with the casing is removed and is locked, and then will the filter element group spare is dismantled.

3. The filter element disassembling and assembling structure according to claim 2, wherein the filter element assembly comprises a cylinder and a filter element upper cover mounted on the top of the cylinder, the filter element upper cover is connected with the cylinder in a melting and rotating manner, the snap-on assembly is arranged in the filter element upper cover, and two ends of the driven member penetrate through the side wall of the filter element upper cover;

4. The filter cartridge disassembly and assembly structure of claim 3, wherein the driving member comprises a disk-shaped connecting member and a first spring connected to a bottom of the connecting member, and a pressing portion is provided at a center of the connecting member, and the pressing portion penetrates through upper and lower surfaces of the connecting member and extends upward and downward by a certain distance.

5. The filter element dismounting structure according to claim 4, wherein the driven member is mounted below the connecting member and symmetrically located at two sides of the pressing portion, the driven member includes a driven snap fastener, a second spring and a connecting sleeve, the driven snap fastener, the second spring and the connecting sleeve are sequentially arranged from outside to inside along a pressing direction perpendicular to the pressing portion, the connecting sleeve is arranged close to the pressing portion and has a certain distance from a side wall of the pressing portion, one end of the second spring is connected with the driven snap fastener, and the other end of the second spring passes through the connecting sleeve and abuts against the side wall of the pressing portion.

6. The filter element attaching and detaching structure as recited in claim 5, wherein a pushing member is provided on a bottom surface of the connecting member, and a concave portion for fitting with the pushing member is provided on an outer side of the driven snap-fastener.

7. The cartridge disassembly and assembly arrangement of claim 6, wherein the pushing member is a wedge-shaped structure having an inclined ramp surface that cooperates with the recess to push the driven latch to move horizontally.

8. The filter element dismounting structure according to claim 4, wherein a groove for mounting the first spring is provided at a bottom of the pressing portion, one end of the first spring abuts against a groove bottom of the groove, and the other end of the first spring abuts against the lower cover.

9. A water purifier characterized by comprising the cartridge dismounting structure according to any one of claims 1 to 8.

10. The water purifier of claim 9, further comprising a base assembly that mates with the filter element assembly, the filter element assembly is detachably arranged on the base assembly through the shell, a first water flow channel is arranged in the filter element assembly, a second water flow channel corresponding to the first water flow channel is arranged in the base component, a first valve core component and a second valve core component which have the same structure and are oppositely arranged are respectively arranged in the first water flow channel and the second water flow channel, each valve core component comprises a valve core and a third spring sleeved on the valve core, when the filter element assembly is arranged on the base assembly, the first valve element assembly and the second valve element assembly interact to respectively compress the two third springs, the two valve cores are driven to move reversely, so that the first water flow channel is communicated with the second water flow channel; when the filter element assembly and the base assembly are disassembled and separated, the two third springs release elasticity to drive the two valve cores to reset so as to respectively seal the first water flow channel and the second water flow channel.