WO2020000941A1

WO2020000941A1 - Filter screen lifting structure of air purifier and air purifier

Info

Publication number: WO2020000941A1
Application number: PCT/CN2018/123288
Authority: WO
Inventors: 罗汉兵; 凌业生; 陈欢; 张帅; 劳承云; 朱露露; 吴志勇; 李泳樺; 游卫刚; 孟万云; 潘海元
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-06-25
Filing date: 2018-12-25
Publication date: 2020-01-02
Also published as: CN108662741A; CN108662741B

Abstract

A filter screen lifting structure (10) of an air purifier, comprising a base (3), a lifting tray (1) and a fitting member (2). The fitting member (2) comprises a fitting portion (23) and an operation portion (22), the fitting portion (23) is located at a lower side of the lifting tray (1), the lifting tray (1) is lifted and lowered by means of the cooperation of the fitting portion (23) and the lifting tray (1), and the fitting member (2) can be moved between a first position and a second position to realize the lifting and lowering of the lifting tray (1). The operation portion (22) comprises a protrusion structure (221), and the protrusion structure (221) can fit the base (3) to lock the position of the fitting member (2). An air purifier having the filter screen lifting structure (10) is also provided. The filter screen lifting structure of the air purifier makes the lifting and lowering process, in particular the lifting process, of the lifting tray more smooth, and the operation simpler, which can be realized without rotating, thereby avoiding being stuck due to non-smooth rotation in the lifting process during rotation, and meanwhile, the lifting structure also has a simpler structure and is convenient to process and manufacture.

Description

Filter screen lifting structure of air purifier and air purifier

Technical field

The invention relates to the technical field of air purification, in particular to a filter lifting structure of an air cleaner and an air cleaner.

Background technique

With the serious air pollution and the improvement of people's living standards, the popularity of air purifiers is getting higher and higher. For tower purifiers, especially cylindrical or cylindrical filter-type air purifiers, there is generally a structure that seals the upper end of the filter screen with the structural parts and facilitates disassembly, so that the air entering the purifier will pass through the filter screen. Into the fan, thereby improving the filtering and purification effect of the air purifier.

Air purifiers using a cylindrical filter are generally designed with a lifting plate structure. When the lifting plate is lifted, it is necessary to ensure that the filter port located on the lifting plate can be tightly fitted with the fan inlet, so that the air entering the purifier will be filtered. The network only enters the fan, thus ensuring the performance of the whole machine. However, the existing structure has defects: 1. The bottom of some lifting plates is a spring structure. The air tightness of the filter is ensured by the elastic force of the spring to squeeze the filter. After a long time of use, the spring elasticity can not be guaranteed to ensure the filter and the air inlet parts. 2. The lifting plate is a rotating structure, but in order to ensure the normal installation of the filter, the handle is generally recessed on the base. When using it, you need to hold the handle with your thumb and forefinger to rotate or slide left and right, which is very inconvenient during operation. ; 3, the current lifting plate structure is generally more complicated. As described in patent document CN103933800A, existing air purifiers generally include a purifier body, a cylindrical filter element, and a filter element mounting and fixing device. The filter element mounting and fixing device is used for stably mounting the filter element on the filter element. The device includes a lifting plate fixing frame, a lifting plate, a knob and a base connected in order from top to bottom, and the lifting plate fixing frame is fixedly connected to the base. The lifting plate fixing frame is provided with a hole for the lifting plate to extend. The upper end of the knob body carries the lifting plate and drives the lifting plate to reciprocate in the direction of the vertical base. The lifting plate is used to carry the filter element, and has a first position corresponding to the opened state of the filter element mounting and fixing device, and a second position corresponding to the locked state of the filter element mounting and fixing device. The lifting plate can be driven by turning the knob with the handle. Freely switch between the first position and the second position to achieve opening and locking of the filter element. In this patent document, the lifting plate has a rotating structure, which is complicated in structure and inconvenient to operate. In addition, the lifting plate cannot enable the user to easily judge its working state, and it cannot guarantee that the mechanism is in a raised state during work.

Summary of the invention

In view of this, one object of the present invention is to provide a filter lifting structure of an air purifier with simple structure, convenient operation and stable movement, and an air purifier provided with the filter lifting structure.

According to a first aspect, a filter lifting structure for an air purifier is provided, which includes a base, a lifting plate, and a mating member. The mating member includes a mating portion and an operating portion. The mating portion is located on a lower side of the lifting plate. The cooperation of the mating portion and the lifting plate realizes the lifting of the lifting plate. The matching member has a first position and a second position on a plane parallel to the surface on which the lifting plate is located. The first position and the second position move in a straight line, and the lifting plate is raised and lowered by the movement of the mating member, so that at least a part of the structure can be protruded to the outside of the base when the lifting plate is raised. The operation portion includes a protruding structure capable of mating with the base to lock a position of the mating member.

Preferably, a first inclined surface is provided on a lower surface of the lifting plate, and a second inclined surface is provided on the fitting portion, and the first inclined surface and the second inclined surface are inclined in a moving direction of the engaging member.

Preferably, the base includes an inverted barrel-like structure, and a first protruding hole is formed on a bottom wall of the barrel-like structure, and the first protruding hole enables at least a part of the lifting plate to protrude to The outside of the base.

Preferably, the lifting plate includes a supporting portion and a limiting portion,

The support portion is a plate-like structure, and the support portion can be extended to the outside of the base through the first protruding hole; and / or,

The limiting portion is configured as a bent structure formed by the edge of the supporting portion extending along the axial direction to the first side and then radially outward, the bending structure includes a limiting surface, and the limiting portion The level surface is located radially outside of the support portion, and the limit surface can abut against the bottom wall of the base to limit the rising of the support portion.

Preferably, the mating portion is configured as a rod-like structure, the operation portion is connected to a first end of the mating portion, and the mating member can be moved from the first position to a second portion by operating the operation portion position.

Preferably, the operation portion is configured as a block structure formed perpendicularly to the mating portion and extending upward,

The raised structure is provided on the upper side of the block structure, and / or,

A pressing portion is formed on a front side of the operation portion.

Preferably, a second extension hole is provided on a side wall of the base, and the pressing portion can be extended to the outside of the base through the second extension hole, and / or,

The bottom wall of the base is provided with a locking hole, and the protruding structure can be located in the locking hole to lock the position of the mating member.

Preferably, a third inclined surface is provided on the protruding structure, and when the mating member slides from the first position to the second position, the third inclined surface can slide the protruding structure out of the locking hole.

Preferably, a recessed structure is provided on the base, and the second protruding hole is formed on an inner wall of the recessed structure located radially inward of the base.

Preferably, the screen lifting structure further includes a biasing member, the biasing member is provided at the second end of the mating portion, and is configured to provide the mating member with movement from the second position to the first position Biasing force.

Preferably, the filter lifting structure further comprises a chassis, the chassis is connected to the base, a supporting structure is provided on the chassis, a supporting surface is provided on the supporting structure, and the supporting surface is configured as an inclined plane, The supporting surface supports the mating portion and / or the supporting surface guides the movement of the mating portion.

Preferably, a third bump is provided on the lower side of the mating portion, and an inclined surface mated with the supporting surface is formed on the third bump.

In a second aspect, an air purifier is provided, which includes a filter screen and a filter lifting structure, and the filter lifting structure is the filter lifting structure described above.

According to a third aspect, an air purifier is provided, which includes a panel and the above-mentioned filter lifting structure. The panel is provided with an interference portion. When the mating member is located at the first position, the pressing portion interferes with the interference portion. So that the panel cannot be installed in place;

When the mating member is in the second position, the pressing portion does not interfere with the interference portion so that the panel can be installed in place.

The filter net lifting structure of the air purifier provided by the present invention realizes the lifting of the lifting plate by moving, and can make the lifting plate's lifting process, especially the lifting process smoother, the operation is simpler, it can be realized without rotation, and it can also avoid rotation Due to the unsmooth rotation, a jam occurs during the ascent process, and the structure of the lifting structure can be relatively simple, which is convenient for processing and manufacturing.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, and advantages of the present invention will be more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 shows an exploded view of the filter lifting structure provided by the present invention;

2 shows a cross-sectional view of a mating member of a filter lifting structure provided in the present invention when it is in a first position;

3 shows a cross-sectional view of the mating member of the filter lifting structure provided in the present invention when it is in a second position;

Figure 4 shows a schematic sectional view of a lifting plate;

5 is a schematic cross-sectional view of a mating member;

Figure 6 shows a schematic sectional view of the chassis;

FIG. 7 is a schematic structural diagram of an air purifier;

FIG. 8 shows an enlarged view at A in FIG. 7 when the mating member is in the first position; FIG.

FIG. 9 shows an enlarged view at A in FIG. 7 when the mating member is in the second position.

The above drawings include the following reference signs:

10. Screen lifting structure; 1. Lifting plate; 11. First inclined surface; 12. Supporting portion; 121; First side; 13. Limiting portion; 131; Limiting surface; 14. First bump; 141, Groove; 15, enclosure; 2, mating member; 21, second inclined surface; 22, operation portion; 221, convex structure; 221 ', third inclined surface; 222, pressing portion; 23, mating portion; 24, first Two convex blocks; 25, rods; 26, third convex blocks; 261, fourth inclined plane; 262, fifth inclined plane; 3, base; 31, first protruding hole; 32, connecting post; 321, guide groove; 33. The first locking hole; 34. The second locking hole; 35. The concave structure; 36. The second protruding hole; 4. The chassis; 41. The first supporting structure; 411. The first supporting surface; Supporting structure; 421, second supporting surface; 5, biasing member; 20, panel; 201, interference portion.

detailed description

The present invention is described below based on examples, but the present invention is not limited to these examples. Those of ordinary skill in the art should understand that the drawings provided herein are for the purpose of illustration, and the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, the words "including", "comprising" and the like throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, "including but not limited to" Meaning.

In the description of the present invention, it should be understood that the terms “first”, “second”, and the like are used for descriptive purposes only, and cannot be understood to indicate or imply relative importance. In addition, in the description of the present invention, unless otherwise stated, "a plurality" means two or more.

As shown in Figs. 1-3, the filter lifting structure 10 of the air purifier in the present application includes a lifting plate 1 and a matching member 2 provided on the lower side of the lifting plate 1, and through the matching member 2 and the lifting plate 1 The cooperation of the lifting plate 1 allows the lifting plate 1 to be raised and lowered. Specifically, the mating member 2 has a first position and a second position on a plane parallel to the surface on which the lifting plate 1 is located, and the mating member 2 can move between the first position and the second position, The lifting plate 1 is raised and lowered by the movement of the engaging member. And the lifting of the lifting plate 1 through the movement of the matching member 2 can make the lifting process of the lifting plate 1 smoother, especially can make the lifting process of the lifting plate 1 smoother, and the operation is simpler, It can be realized without rotation, and it can also avoid stalling during ascent due to unsmooth rotation during rotation. At the same time, it can also make the structure of the lifting structure simple and convenient for manufacturing.

As shown in FIGS. 2 and 3, in a preferred embodiment, a first inclined surface 11 is provided on the lower surface of the lifting plate 1, and a second inclined surface 21 is provided on the mating member 2. The inclined surface 11 and the second inclined surface 21 are inclined in the moving direction of the fitting member. For example, in the up, down, left, and right directions shown in FIGS. 2-3, the first inclined surface 11 is inclined from the top to the bottom in a front-to-back direction, and the second inclined surface 21 is in a front-to-back direction. It also inclines from top to bottom, so that when the mating member 2 moves from front to back, the second inclined surface 21 pushes the first inclined surface 11 so that the lifting plate 1 rises. This structure is simple and easy to operate, and the manufacturing is relatively simple, which can save man-hours and improve efficiency. Preferably, a plurality of the first inclined surface 11 and the second inclined surface 21 may be provided, so that the lifting process of the lifting plate 1 can be made more stable.

The screen lifting structure further includes a base 3, which is preferably configured as an inverted barrel structure. The lifting plate 1 and the mating member 2 are both disposed in the base 3 on the bottom wall of the barrel structure. A first protruding hole 31 is formed, and the first protruding hole 31 enables at least a part of the lifting plate 1 to protrude to the outside of the base 3.

As shown in FIGS. 1 and 4, the lifting plate 1 is preferably configured as a plate-shaped structure, such as a circular, square, or other arbitrary-shaped plate-shaped structure. In this embodiment, the lifting plate 1 has a disc-shaped structure, and includes a supporting portion 12 and a limiting portion 13. The supporting portion 12 is a circular plate-like structure. The second surface of the supporting portion 12 is a support. On the other hand, the support portion 12 can protrude to the outside of the base 3 through the first extension hole 31 and support the filter element structure through the support. The limiting portion 13 is configured as a bent structure formed by an edge of the supporting portion 12 extending along the axial direction toward the first side 121 and then radially outward, and the bending structure includes a limiting surface 131 Preferably, the limiting surface 131 is parallel to a surface on which the supporting portion 12 is located, and the limiting surface 131 is located radially outward of the supporting portion 12. The limiting surface 131 cannot pass through the first protruding hole 31, and when the supporting portion 12 is raised to the highest position, the limiting surface 131 can contact the bottom wall of the base 3, so that The support portion 12 cannot continue to rise. Further, the limiting surface 131 is an annular surface formed along the entire edge of the supporting portion 12, or the limiting surface 131 is formed on a part of the edge of the supporting portion 12 and extends along the supporting portion 12. There are multiple circumferential distributions. Preferably, a surrounding plate 15 is formed at an edge of the supporting portion 12 along the axial direction of the supporting portion 12 toward the first side 121, and the surrounding plate 15 is preferably formed along the entire circumferential direction of the supporting portion 12. The surrounding board 15 can increase the strength of the lifting plate 1.

The first inclined surface 11 is formed on the first side 121 of the support portion 12. Preferably, a first bump 14 is formed on the first surface of the support portion 12, and the first bump 14 is away from the first protrusion 14. A surface of the support portion 12 constitutes the first inclined surface 11, and further, a groove 141 is formed on a surface of the first bump 14 away from the support portion 12, and a bottom surface of the groove 141 constitutes the first Incline 11. Preferably, a portion of the interior of the first protrusion 14 between the first inclined surface 11 and the support portion 12 is configured as a hollow structure to reduce the weight of the lifting plate 1.

As shown in FIGS. 1 and 5, the mating member 2 includes an operating portion 22 and a mating portion 23 connected to the operating portion 22. The operating portion 22 is connected to a first end of the mating portion 23 and operates by The operation portion 22 can move the engagement member 2 from the first position to the second position. The mating portion 23 is configured as a hollow rod or a rod having a concave cross-section, so that the weight of the mating portion 23 can be reduced and the operability can be increased. The operation portion 22 is configured as a block structure formed perpendicularly to the mating portion 23 and extending upward. A convex structure 221 is formed on the upper side of the operation portion 22. The convex structure is formed on the convex structure. The third inclined surface 221 'is formed on the rear side of the convex structure 221, and the third inclined surface 221' is inclined from the top to the bottom in a front-to-back direction. A pressing portion 222 is further formed on the front side surface of the operation portion 22, and the pressing portion 222 is configured as a protrusion formed on the front side of the operation portion and extending forward.

As shown in FIGS. 3 and 5, the base 3 is provided with a second protruding hole 36, and the pressing portion 222 can protrude to the outside of the base 3 through the second protruding hole 36. Preferably, The size of the second protruding hole 36 in the vertical direction is larger than the size of the pressing portion 222, so that the pressing portion 222 can slide in the vertical direction in the second protruding hole 36. An operator applies pressure on the mating member 2 through the pressing portion 222. Preferably, the second protruding hole 36 is provided on a side wall of the base 3. The bottom wall of the base 3 is further provided with a locking hole, the protruding structure 221 can be located in the locking hole to lock the mating member 2, and the third inclined surface 221 ′ can make the mating member 2 to When the second position slides, the protruding structure 221 slides out of the locking hole. Preferably, the locking hole includes a first locking hole 33, and the first locking hole 33 is located near the second protruding hole 36. When the mating member 2 is located in the second position, the protrusion The structure 221 is located in the first locking hole 33 so that the mating member 2 can be held in the second position. Preferably, a second locking hole 34 is further provided on the bottom wall of the base 3, and the second locking hole 34 is located in front of the first locking hole 33 in the front-rear direction. When the mating member 2 is located In the first position, the protruding structure 221 is located in the second locking hole 34, so that the engaging member 2 can be held in the first position. When the pressing portion 222 is under pressure, the convex structure 221 slides out of the second locking hole 34 under the action of the third inclined surface 221 ′, and slides to the first locking member 2. In the two positions, the protruding structure 221 slides into the first locking hole 33.

Preferably, a recessed structure 35 is formed at the connection between the bottom wall and the side wall of the base 3, and the second protruding hole 36 is formed in the recessed structure 35 and located radially inward of the base 3. On the inner wall. When the engaging member 2 is in the first position, the pressing portion 222 passes through the second protruding hole 36 and is located in the concave structure 35.

As shown in FIGS. 1 and 5, the second inclined surface 21 is formed on the upper side of the mating portion 23. Preferably, the lower side of the mating portion 23 is formed with a groove extending along the extending direction thereof, so that the mating portion 23 is constructed as a hollow structure. Preferably, a second bump 24 is formed on the upper side of the mating portion 23, and a surface of the second bump 24 away from the mating portion 23 constitutes the second inclined surface. The second bump 24 can Project into the groove 141 on the first convex block 14 and make the first inclined surface 11 contact the second inclined surface 21; and in the front-rear direction, the size of the second convex block 24 is smaller than The internal size of the groove 141 is such that the second protrusion 24 can slide in the groove 141 in the front-rear direction. Preferably, the second bump 24 is configured as a hollow structure, so that the weight of the mating portion 23 can be reduced.

Further, the lifting structure further includes a biasing member 5 for providing the matching member 2 with a biasing force moving from the second position to the first position, that is, toward the matching member. 2 provides a biasing force that moves from back to front. In this way, when the mating member 2 is pushed, the mating member 2 can be moved from front to back, so that the lifting plate 1 rises under the action of the first inclined surface 11 and the second inclined surface 21, and when the pushing force is released, the engaging member 2 2 can be moved forward and backward by the biasing force of the biasing member 5 and returned to the original position. This can make the operation of the mating member 2 easier. In order to facilitate the setting of the biasing member 5, a rod member 25 is provided at the second end portion of the matching portion 23, and the biasing member 5 is preferably a coil spring. During assembly, the biasing member 5 can be sleeved on the lever member. 25 on.

As shown in FIGS. 3 and 5, in a preferred embodiment, the bottom wall of the base 3 is provided with a connecting post 32 for fitting with the rod 25, and the connecting post 32 is provided with a guide groove 321. Preferably, the opening of the guide groove 321 faces downward, the lever member 25 is located in the guide groove 321 and can slide in the front-rear direction, and the guide groove 321 cooperates with the lever member 25 to engage the engaging member. The 2 slide serves as a guide. The biasing member 5 is sleeved on the rod member 25 and is located between the connecting post 32 and the mating portion 23. The biasing member 5 abuts the connecting post 32 and the mating portion 23. Then, when the mating member 2 is located at the second position, the biasing member 5 is in a compressed state.

As shown in FIGS. 1 and 6, the filter lifting structure further includes a chassis 4, which is connected to the base 3 and forms an accommodation space with the base 3, and the mating member 2 is located in the accommodation Space. A support structure is provided on the chassis 4, and the support structure supports the mating portion 23. Preferably, the support structure includes a first support structure 41 and a second support structure 42. The second support structure 42 is located on the front side of the first support structure 41. Preferably, a gap is formed between the first support structure 41 and the second support structure 42, and the first support structure 41 is provided with A first support surface 411, which is inclined from the top to the bottom in a back-to-front direction, a second support surface 421 is formed on the second support structure 42, and the second support surface 421 is inclined from top to bottom in a front-to-back direction, and the mating portion 23 is supported by the first supporting surface 411 or the second supporting surface 421.

Correspondingly, as shown in FIG. 5, a third protrusion 26 is provided on the lower side of the fitting portion 23. In the front-rear direction, a fourth slope 261 and a fifth slope are formed on the third protrusion 26, respectively. 262, the fourth inclined surface 261 is located on the rear side of the fifth inclined surface 262, and the fourth inclined surface 261 is inclined from top to bottom in a rear-to-forward direction, and the fifth inclined surface 262 In a forward-backward direction, tilt from top to bottom. Preferably, the fourth inclined surface 261 intersects the lower edge of the fifth inclined surface 262, so that the third bump 26 is configured as a triangle. Preferably, in a front-rear direction, the third bump 26 is located on a front side of the second bump 24.

When the mating member 2 is located at the first position, the fifth inclined surface 262 is in contact with the second support surface 421, and the second support surface 421 supports the third bump 26. When the engaging member 2 starts sliding from the first position to the second position, the fifth inclined surface 262 slides along the second support surface 421, so that the third projection 26 slides obliquely downward. As the mating member 2 continues to slide, the second supporting surface 421 is separated from the fifth inclined surface 262, and then the fourth inclined surface 261 is in contact with the first supporting surface 411 and extends along the first support. The surface 411 slides obliquely upward until the mating member 2 reaches the second position to stop sliding. The first support surface 411 supports the third protrusion 26. When the engaging member 2 slides from the second position to the first position, the protruding structure 221 is pressed to slide out of the first locking hole 33. Under the action of the biasing member 5, the engaging member 2 slides to the first position. When sliding to the first position, the protruding structure 221 slides into the second locking hole 34, and the mating member 2 no longer slides.

The filter net lifting structure of the air purifier provided by the invention can lift the lifting plate by moving, which can make the lifting plate rise and fall, especially the ascent process is smoother, the operation is simpler, it can be realized without rotation, and it can also avoid rotation due to rotation. Stalls are generated during the ascent process due to irregularities. At the same time, the structure of the lifting structure can be relatively simple, which is convenient for processing and manufacturing.

The invention also provides an air purifier. As shown in FIG. 7, the filter lifting structure 10 constitutes a support base of the air purifier, and the air purifier further includes a panel 20. As shown in FIG. 8, a part of the panel 20 is sleeved on the outside of the filter lifting structure 10, and an interference portion 201 is formed on the inside of the panel 20. When the mating member 2 is in the first position, The pressing portion 222 interferes with the interference portion 201 so that the panel 20 cannot be installed in place. As shown in FIG. 9, when the engaging member 2 is in the second position, the pressing portion 222 moves toward the inside of the base 3, so that the interference portion 201 can be located in the recessed structure 35 on the base 3. So that the panel 20 can be installed in place.

By cooperating the panel 20 with the filter lifting structure 10, it is possible to ensure that the filter of the air purifier is in a lifted state when the panel 20 is installed, thereby ensuring the reliability of the entire machine.

Those skilled in the art can easily understand that, under the premise of no conflict, the foregoing preferred solutions can be freely combined and superimposed.

It should be understood that the above-mentioned embodiments are merely exemplary and not restrictive, and various obvious or equivalent ones that can be made by those skilled in the art with respect to the above details can be made without departing from the basic principles of the present invention. Modifications or replacements are all included in the scope of claims of the present invention.

Claims

A filter lifting structure (10) of an air purifier, comprising a base (3), a lifting plate (1), and a mating member (2), the mating member (2) including a mating portion (23) and An operating portion (22), the engaging portion (23) is located below the lifting plate (1), and the lifting plate (1) is realized by cooperation of the engaging portion (23) and the lifting plate (1) ), The mating member (2) has a first position and a second position on a plane parallel to the plane on which the lifting plate (1) is located, and the mating member (2) can be in the first position and The second position moves in a straight line, and the lifting plate (1) is raised and lowered by the movement of the matching member (2), so that at least a part of the structure can be extended to the lifting plate (1) when it is raised. Outside the base (3), the operating portion (22) includes a protruding structure (221), and the protruding structure (221) can cooperate with the base (3) to align the mating member (2) Position is locked.
The filter lifting structure (10) according to claim 1, characterized in that a first inclined surface (11) is provided on a lower surface of the lifting plate (1), and the matching portion (23) is provided There is a second inclined surface (21), and the first inclined surface (11) and the second inclined surface (21) are inclined in a moving direction of the mating member (2).
The filter lifting structure (10) according to claim 2, characterized in that the base (3) includes an inverted barrel structure, and a first protruding hole is formed on a bottom wall of the barrel structure ( 31), the first protruding hole (31) enables at least a part of the lifting plate (1) to protrude to the outside of the base (3).
The filter lifting structure (10) according to claim 3, wherein the lifting plate (1) comprises a supporting portion (12) and a limiting portion (13),

The supporting portion (12) is a plate-like structure, and the supporting portion (12) can be extended to the outside of the base (3) through the first protruding hole (31); and / or,

The limiting portion (13) is configured as a bent structure formed by the edge of the supporting portion (12) extending along the axial direction toward the first side (121), and then extending radially outward. The structure includes a limiting surface (131), the limiting surface (131) is located radially outward of the support portion (12), and the limiting surface (131) can abut against the bottom of the base (3) The wall is used to limit the ascent of the support portion (12).
The filter lifting structure (10) according to claim 3, wherein the mating portion (23) is configured as a rod-like structure, and the operating portion (22) is connected to the first portion of the mating portion (23). At one end, the engaging member (2) can be moved from the first position to the second position by operating the operation portion (22).
The filter lifting structure (10) according to claim 5, characterized in that the operating portion (22) is configured as a block structure formed perpendicularly to the mating portion (23) and extending upward,

The raised structure (221) is provided on the upper side of the block structure, and / or,

A pressing portion (222) is formed on a front side of the operation portion (22).
The filter lifting structure (10) according to claim 6, characterized in that the side wall of the base (3) is provided with a second protruding hole (36), and the pressing portion (222) can pass through the The second protruding hole (36) protrudes to the outside of the base (3), and / or,

A locking hole is provided on the bottom wall of the base (3), and the protruding structure (221) can be located in the locking hole to lock the position of the mating member (2).
The filter lifting structure (10) according to claim 7, characterized in that the convex structure (221) is provided with a third inclined surface (221 '), and when the mating member (2) is moved from the first position When sliding to the second position, the third inclined surface (221 ') can slide the protruding structure (221) out of the locking hole.
The filter lifting structure (10) according to claim 7, characterized in that the base (3) is provided with a concave structure (35), and the second protruding hole (36) is formed in the inner The concave structure (35) is located on the inner wall of the base (3) on the radially inner side.
The filter lifting structure (10) according to claim 5, characterized in that the filter lifting structure (10) further comprises a biasing member (5), the biasing member (5) is arranged at the fitting The second end of the portion (23) is used to provide the engaging member (2) with a biasing force moving from the second position to the first position.
The filter lifting structure (10) according to any one of claims 1 to 10, wherein the filter lifting structure (10) further comprises a chassis (4), and the chassis (4) is connected to the base (3), a supporting structure is provided on the chassis (4), a supporting surface is provided on the supporting structure, the supporting surface is configured as an inclined surface, and the supporting surface supports and supports the mating portion (23) and / Or the support guides the movement of the mating portion (23).
The filter lifting structure (10) according to claim 11, characterized in that a third projection (26) is provided on the lower side of the mating portion (23), and the third projection (26) is formed on the third projection (26) There is an inclined surface that cooperates with the supporting surface.
An air cleaner comprises a filter screen and a filter screen lifting structure (10), characterized in that the filter screen lifting structure (10) is the filter screen lifting structure (10) according to any one of claims 1-12.
An air purifier, comprising a panel (20) and the filter lifting structure (10) according to any one of claims 7-9, wherein the panel (20) is provided with an interference portion (201). When the fitting member (2) is located at the first position, the pressing portion (222) and the interference portion (201) form interference, so that the panel (20) cannot be installed in place;

When the mating member (2) is located at the second position, the pressing portion (222) does not interfere with the interference portion (201), so that the panel (20) can be installed in place.