CN114659222A - Household air purifier and working method thereof - Google Patents

Abstract

The invention discloses a household air purifier and a working method thereof, and belongs to the technical field of air purifiers. The fan-type power storage box comprises a box, a motor device, a fan, a filter and a conical tube, wherein an inserting hole is formed in the middle upper portion of a shell of the box, a containing box is arranged in the box, the horizontal height of the containing box is the same as that of the inserting hole, the inserting hole is in butt joint with the containing box, a movable frame is inserted into the containing box, the filter is arranged at the top of the movable frame, a first linkage mechanism and a second linkage mechanism are arranged on two sides of the movable frame respectively, and the first linkage mechanism and the second linkage mechanism respectively comprise a transmission assembly, a ratchet wheel assembly, a power storage assembly and a sliding assembly. The movable frame is conveniently pushed out through the linkage mechanism. The air purifier solves the technical problem of difficult maintenance caused by complex disassembly of the filter screen in the air purifier, and achieves the aim of purifying air by regularly replacing the filter screen.

Description

Household air purifier and working method thereof

Technical Field

The invention belongs to the technical field of air purifiers, and particularly relates to a household air purifier and a working method thereof.

Background

The household air purifier is mainly used for removing indoor air pollutants (generally, decoration pollution such as dust, pollen, peculiar smell and formaldehyde, bacteria, allergens and the like) and effectively improving the air cleanliness. The air purifier usually comprises high-voltage circuit, anion generator, ventilation blower, air cleaner, etc., and when the purifier is operated, the ventilation blower in the machine makes the indoor air circularly flow, and the polluted air is filtered by the air cleaner in the machine, then various pollutants are removed or adsorbed, and then the air is continuously ionized by the anion generator arranged at the air outlet, so as to generate a large amount of anions which are sent out by the micro-fan, thus forming anion flow and achieving the purpose of cleaning and purifying the air.

Current air purifier uses the filter screen to filter the air, and long-time filter work is back, needs to dismantle the filter screen and wash or insolate for repetitive cycle uses, however, air purifier among the prior art is extremely loaded down with trivial details in the dismantlement in-process that carries out the filter screen, is unfavorable for carrying out quick maintenance.

Disclosure of Invention

One of the purposes of the invention is to provide a household air purifier, which solves the technical problem of difficult maintenance caused by complex disassembly of a filter screen in the air purifier, and achieves the purpose of purifying air by regularly replacing the filter screen.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a domestic air purifier, its includes quick-witted case (1) the shell of quick-witted case (1) on be provided with inlet port (6), inlet port (6) with be located air inlet box (26) intercommunication in quick-witted case (1), through inlet port (6) let in fresh air in air inlet box (26) the top of the shell of quick-witted case (1) be provided with venthole (5), its characterized in that:

the middle upper part of the shell of the case (1) is provided with a jack hole (2), a containing box (24) is arranged in the case (1) with the same horizontal height as the jack hole (2), the jack hole (2) is butted with the containing box (24), a movable frame (3) is inserted in the containing box (24), and the top of the movable frame (3) is provided with a filter;

a first linkage mechanism and a second linkage mechanism are respectively arranged on two sides of the movable frame (3), have the same structure and respectively comprise a transmission assembly, a ratchet wheel assembly, a force storage assembly and a sliding assembly;

the transmission assembly comprises a rotating shaft (14), a gear (13) and a rack (12), the rotating shaft (14) is movably inserted into the side wall of the containing box (24), one end of the rotating shaft (14) extends into the containing box (24) through the side wall of the containing box (24), the other end of the rotating shaft is positioned outside the containing box (24), the rack (12) is fixedly connected to the side end of the movable frame (3), the gear (13) is fixedly connected to one end of the rotating shaft (14) positioned in the containing box, and the gear (13) is meshed with the rack (12);

the ratchet wheel assembly comprises a button (4), a fixing frame (27), a spring (28), a pawl (29), a telescopic push rod (30) and a one-way ratchet wheel (15), wherein the one-way ratchet wheel (15) is fixedly connected to the circumferential surface of a rotating shaft (14) positioned outside the accommodating box (24), the button (4) is arranged at the top of the case (1), the telescopic push rod (30) is arranged in the case (1) extending downwards at the position corresponding to the button (4), the top end of the telescopic push rod (30) is connected to the button (4), the bottom end of the telescopic push rod is connected with the pawl (29), and the pawl (29) is arranged on one side close to the one-way ratchet wheel (15) and is in one-way clamping with the one-way ratchet wheel (15); the spring (28) is positioned in the fixed frame (27), the fixed frame (27) and the spring (28) are both sleeved on the outer surface of the telescopic push rod (30), and the other side of the fixed frame (27) is fixedly connected to the inner wall of the case (1);

the power storage assembly comprises a torsion spring box (16) and a torsion spring (17), one side of the torsion spring box (16) is sleeved on the outer surface of a rotating shaft (14) positioned outside the accommodating box (24), the torsion spring box (16) is fixedly connected to the inner wall of the case (1), the torsion spring (17) is arranged in the torsion spring box (16), and the end part of the rotating shaft (14) positioned outside the accommodating box (24) is connected with the torsion spring (17);

the sliding assembly comprises two sliding grooves (18) and two sliding blocks (19), the two sliding grooves (18) are respectively positioned on the opposite inner walls of the accommodating box (24), the sliding blocks (19) are fixedly connected to the side ends of the two racks (12), and the two sliding blocks (19) slide in the two sliding blocks (19); the movable frame (3) can slide out of the accommodating box (24) smoothly through the sliding assembly;

a conical pipe (23) is arranged below the containing box (24), the area of the top surface of the conical pipe (23) is smaller than that of the bottom surface of the conical pipe, a motor device is arranged below the conical pipe (23), and the bottom of the motor device is arranged at the bottom in the case (1).

As a preferable scheme of the invention, the filter comprises a filter tank (10) and a second filter screen (11), and the second filter screen (11) is inserted into the inner wall of the filter tank (10).

As another preferable scheme of the invention, a buckling groove (9) is arranged on the outer side of the movable frame (3).

Preferably, the motor device include motor (20), motor (20) are located the bottom of quick-witted case (1), are connected with carousel (21) at the output of motor (20), carousel (21) set up between the circumference inner wall of rotating groove (25), at the top fixedly connected with a plurality of arc flabellum (22) of carousel to every arc flabellum (22) all stretch into conical tube (23) in.

Preferably, the air inlets (6) are provided with a plurality of air inlets (6), the air inlets (6) are arranged together to form a square or rectangle, the shell of the case (1) is of a cuboid structure, and the air inlets (6) are arranged on at least two side plates of four side plates of the shell of the case (1).

Preferably, a first filter screen (7) is arranged on the air inlet box (26) opposite to the air inlet hole, and a control screen (8) is arranged at the side end of the case (1).

Preferably, the telescopic push rod (30) is rotatably connected to the side end of the pawl (29) through a hinge shaft.

Another object of the present invention is to provide a working method of the household air purifier, which specifically comprises the following steps:

s1, releasing self-locking:

the button (4) is pressed, the button (4) moves downwards to push the telescopic push rod (30), the telescopic push rod (30) presses the pawl (29) downwards, the unidirectional clamping of the unidirectional ratchet wheel (15) is released through the movement of the pawl (29), and the self-locking of the movable frame (3) is released;

s2, reverse ejection:

when the self-locking of the movable frame (3) is released, the torsion spring (17) extends, the torsion spring (17) pushes the rotating shaft (14) to rotate so as to drive the gear (13) to rotate, and the movable frame (3) is reversely pushed out from the accommodating box (24) under the meshing of the gear (13) and the rack (12);

s3, sliding guide:

in the reverse pushing-out process of the movable frame (3), the two sliding blocks (19) are in sliding fit with the two sliding grooves (18) to realize sliding guide on the movement of the movable frame (3);

s4, detaching the second filter screen (11):

pushing the second filter screen (11) upwards from the bottom of the accommodating box (24) to eject the second filter screen (11) out of the filter tank (10) so as to finish the disassembly of the second filter screen (11);

s5, replacing a third filter screen:

embedding a third filter screen to be replaced into the second filter screen (11), buckling the buckling groove (9), pushing the movable frame (3) to move into the accommodating box (24), guiding and limiting the movement of the movable frame (3) through the sliding fit of the two sliding grooves (18) and the sliding block (19), pushing the third filter screen into the accommodating box (24) to be positioned on the same axial line with the spring (28) and the conical pipe (23), and realizing the replacement of the third filter screen;

s6, power storage:

in the moving process of the movable frame (3), the two racks (12) are meshed with the two gears (13), the two racks (12) push the two gears (13) to rotate, the two gears (13) rotate to drive the two rotating shafts (14) to rotate, the two rotating shafts (14) rotate to contract the two torsion spring boxes (16), and force storage is realized through the contraction of the two torsion spring boxes (16);

s7, self-locking:

the telescopic push rod (30) is pulled to move upwards in the process that the sliding groove (18) lifts the button (4), the telescopic push rod (30) pulls the pawl (29) to be clamped with the one-way ratchet wheel (15), the one-way ratchet wheel (15) is driven to rotate in the rotating process of the rotating shaft (14), the one-way ratchet wheel (15) is clamped with the rotating shaft (14) in one direction, the rotation of the rotating shaft (14) is limited, the rotation of the gear (13) is limited through the one-way clamping of the one-way ratchet wheel (15) and the pawl (29), and then the self-locking of the movable frame (3) is realized.

Compared with the prior art, the invention has the following beneficial technical effects:

(1) the invention provides a household air purifier, a movable frame can be conveniently pushed out or pushed in through a sliding component, in the sliding component, a one-way ratchet wheel is used for being clamped with a pawl to limit the rotation of a rotating shaft, the one-way ratchet wheel is positioned at the outer side of a containing box, the pawl limits the rotation of the one-way ratchet wheel through clamping, a button is used for pushing a telescopic push rod to move, the telescopic push rod is used for pushing the pawl to move to release the one-way clamping of the pawl to the one-way ratchet wheel, a fixed frame is used for limiting the maximum downward pressing of the button, a spring is used for lifting the button to pull the pawl to be clamped with the one-way ratchet wheel, when the pawl is clamped with an air outlet hole, the one-way ratchet wheel can only rotate in one direction to prevent the reverse rotation of the one-way ratchet wheel and limit the rotation of the rotating shaft, the movable frame is self-locked, the movable frame is prevented from sliding out of the containing box, the self-locking of the movable frame is realized, when the pawl is not clamped with the one-way ratchet wheel, the self-locking of the movable frame is released, the movable frame is conveniently pushed out, and the complicated disassembling process is avoided by pushing out and pushing in the movable frame, so that the quick maintenance is facilitated.

(2) The sliding fit of two sliders and two spouts guides and restricts the moving process of the movable frame, so that the movable frame can be prevented from shaking off dust on the second filter screen in the accommodating box due to vibration generated in the moving process, and dust pollution is prevented.

(3) The air flow in the purifier is better, the air flow in the conical pipe is reduced from large to small by the design of the upper narrow part and the lower wide part of the conical pipe, the plurality of arc-shaped fan blades are powered by the motor to rotate by matching with the design of the rotating groove and the rotating disc, the plurality of arc-shaped fan blades are further fixed by the rotating disc, and the plurality of arc-shaped fan blades adopt special curve shapes and rotate to guide the air around the case into the conical pipe so as to provide power for the air circulation.

In conclusion, the household air purifier provided by the invention can purify various harmful substances in a room, and can conveniently replace a filter screen.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a front view of a domestic air purifier according to the present invention;

FIG. 2 is another perspective view of the domestic air purifier of the present invention;

FIG. 3 shows an internal structural view of an air purifier of the present invention;

FIG. 4 is a bottom view of the air purifier of the present invention;

FIG. 5 is a schematic structural view showing a movable frame of the air cleaner of the present invention;

FIG. 6 is a schematic drawing showing the movable frame of the air purifier in a drawn-out state;

FIG. 7 is a schematic structural view of a first linkage mechanism;

fig. 8 and 9 are exploded views of the household air purifier according to the present invention;

FIG. 10 is an exploded view of the first linkage;

in the figure:

1. a chassis; 2. inserting holes; 3. a movable frame; 4. a button; 5. an air outlet; 6. an air intake; 7. a first filter screen; 8. a control screen; 9. a buckling groove; 10. a filter tank; 11. a second filter screen; 12. a rack; 13. a gear; 14. a rotating shaft; 15. a one-way ratchet; 16. a torsion spring case; 17. a torsion spring; 18. a chute; 19. a slider; 20. a motor; 21. a turntable; 22. arc-shaped fan blades; 23. a tapered tube; 24. an accommodating box; 25. a rotating groove; 26. an air intake box; 27. a fixed mount; 28. a spring; 29. a pawl; 30. a telescopic push rod.

Detailed Description

The invention provides a household air purifier and a working method thereof, and in order to make the advantages and technical scheme of the invention clearer and clearer, the invention is described in detail with reference to specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. Other orientations of the components are possible (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.

Referring to fig. 1 to 4, the present invention provides a household air purifier, which comprises a motor, a fan, a filter and a tapered tube, and the main working principle is as follows: the air purifier is developed based on the main technical problem, and the technical problem of replacing the filter screen is realized under the conditions of how to quickly replace the air with pollutants and not scattering the pollutants, so that the air purifier is improved.

The invention discloses a household air purifier which comprises a case 1, a motor device, a fan, a filter and a conical pipe, wherein the case 1 is preferably rectangular, the case 1 is of a shell structure, and the motor device, the fan, the filter and the conical pipe are all arranged inside the case 1.

The casing of the case 1 is provided with a plug hole 2, the specific position of the plug hole 2 is near the middle upper part of the casing of the case 1, the shape of the plug hole is rectangular, the specific shape and size of the plug hole 2 are matched with the movable frame 3, and the movable frame 3 can penetrate through the plug hole to realize pushing or pushing action.

The accommodating box 24 is arranged in the case 1 opposite to the plug hole, and the volume of the accommodating box 24 is larger than that of the movable frame, so that the movable frame is positioned in the accommodating box 24.

The air inlet holes 6 are formed in the middle lower portion of the shell of the case 1, indoor air enters the case 1 through the air inlet holes 6, the air inlet box 26 is arranged in the case 1 which is connected with the air inlet holes in a butt joint mode, therefore, the air inlet holes 6 can be formed in a plurality of shapes, for example, the air inlet holes are evenly formed in the case, the air inlet holes are arranged into a rectangle, the air inlet box enables the air entering the air inlet holes to flow under the action of the motor device and the fan, and then the air is discharged from the air outlet holes in the top of the case 1 through the tapered pipes and the filter. Preferably, a first screen 7 is arranged on the inlet box 26 opposite the inlet opening, and a control screen 8 is arranged on the side of the housing 1, by means of which screen precise control of the purifier is achieved.

The air inlet 6 is at least arranged on two of the four side plates of the casing of the chassis 1, preferably on two opposite side plates, and is arranged on two opposite side plates, so that air can be conveniently introduced.

The movable frame 3 is inserted between the inner walls of the accommodating box 24, the top of the movable frame 3 is provided with a filter tank 10, a second filter screen 11 is inserted between the inner walls of the filter tank 10, and the side end of the movable frame 3 is provided with a buckling groove 9.

As a main improvement point of the invention, a first linkage mechanism and a second linkage mechanism are arranged at two sides of the movable frame 3,

the first linkage mechanism and the second linkage mechanism have the same structure and respectively comprise a transmission assembly, a ratchet wheel assembly, a force accumulation assembly and a sliding assembly.

As shown in fig. 5 to 10, the transmission assembly includes a rotating shaft 14, a gear 13 and a rack 12, the rotating shaft 14 is movably inserted into a side wall of the accommodating box 24, one end of the rotating shaft 14 extends into the accommodating box 24 through the side wall of the accommodating box, the other end of the rotating shaft is located outside the accommodating box, the rack is fixedly connected to a side end of the movable frame 3, the gear 13 is fixedly connected to one end of the rotating shaft 14 located inside the accommodating box, and the gear 13 is engaged with the rack 12.

In the above-mentioned transmission assembly, the rotating shaft 14 provides support for the gear 13 and the one-way ratchet 15, the rack 12 is used for meshing with the gear 13, and the movement of the movable frame 3 is pushed through the rotation fit between the rack 12 and the gear 13, so as to realize the bidirectional movement of the movable frame 3 in the accommodating box 24.

The ratchet wheel assembly comprises a button 4, a fixed frame 27, a spring 28, a pawl 29, a telescopic push rod 30 and a one-way ratchet wheel 15, wherein the one-way ratchet wheel 15 is fixedly connected to the circumferential surface of a rotating shaft 14 positioned outside the accommodating box 24, the button 4 is arranged at the top of the case 1, the telescopic push rod 30 is arranged in the case 1 extending downwards at the position corresponding to the button 4, the top end of the telescopic push rod 30 is connected to the button 4, the bottom end of the telescopic push rod 30 is connected with the pawl 29, and the pawl 29 is positioned on one side close to the one-way ratchet wheel 15 and is clamped with the one-way ratchet wheel 15 in a one-way manner; the spring 28 is located in the fixing frame 27, the fixing frame 27 and the spring 28 are both sleeved on the outer surface of the telescopic push rod 30, and the other side of the fixing frame is fixedly connected to the inner wall of the case 1.

In the ratchet wheel assembly, the one-way ratchet wheel 15 is used for being clamped with the pawl 29 to limit the rotation of the rotating shaft 14, the pawl 29 limits the rotation of the one-way ratchet wheel 15 through clamping, the button 4 is used for pushing the telescopic push rod 30 to move, the telescopic push rod 30 is used for pushing the pawl 29 to move, the one-way clamping of the pawl 29 on the one-way ratchet wheel 15 is released, the fixed frame 27 is used for limiting the maximum downward pressing of the button 4, the spring 28 can enable the button 4 to move upwards in an uncompressed state, at the moment, the button 4 is used for pulling the pawl 29 to be clamped with the one-way ratchet wheel 15, when the pawl 29 is clamped with the air outlet hole 5, the one-way ratchet wheel 15 can only rotate in one direction to prevent the reverse rotation of the one-way ratchet wheel 15, so as to limit the rotation of the rotating shaft 14, the self-locking of the movable frame 3 is realized, the movable frame 3 is prevented from sliding out of the accommodating box 24, the self-locking of the movable frame 3 is realized, when the pawl 29 is not clamped with the one-way ratchet wheel 15, the self-locking of the movable frame 3 is released, the movable frame 3 is conveniently pushed out, and the complicated disassembling process is avoided by pushing out and pushing in the movable frame 3, so that the quick maintenance is facilitated.

The power storage assembly comprises a torsion spring box 16 and a torsion spring 17, one side of the torsion spring box 16 is sleeved on the outer surface of the rotating shaft 14 positioned outside the containing box 24, the torsion spring box is fixedly connected to the inner wall of the case, the torsion spring is arranged in the torsion spring box, and the end part of the rotating shaft positioned outside the containing box (24) is connected with the torsion spring.

Among the foretell power component of holding, place torsional spring 17 in the torsional spring box 16, provide the space for the shrink and the extension of torsional spring 17, torsional spring 17 is used for promoting the rotation of pivot 14 and collects the torsion that the pivot 14 rotatory in-process produced, it is used for collecting the power that the adjustable shelf 3 produced when pushing when the torsional spring 17 shrink in-process, hold power, provide power for the release of adjustable shelf 3, when torsional spring 17 extends, torsional spring 17 promotes the pivot 14 rotatory, it is rotatory to drive gear 13, release adjustable shelf 3, realize holding the power function through torsional spring 17, provide power for the release of adjustable shelf 3.

The sliding assembly comprises two sliding grooves 18 and two sliding blocks 19, the two sliding grooves 18 are respectively positioned on the opposite inner walls of the accommodating box 24, the sliding blocks 19 are fixedly connected to the side ends of the two racks 12, and the two sliding blocks 19 slide in the two sliding blocks 19; the movable frame 3 is smoothly slid out of the accommodating box 24 by the sliding assembly.

Among the foretell sliding assembly, two spouts 18 are used for holding two sliders 19, and two sliders 19 slide in two spouts 18, through the sliding fit of two sliders 19 and two spouts 18, to the removal in-process of adjustable shelf 3 guide and restriction, avoid adjustable shelf 3 to remove the in-process, produce vibrations and cause the dust on the second filter screen 11 to shake off in holding case 24, prevent to cause dust pollution.

A conical tube 23 is arranged below the accommodating box 24, the top surface area of the conical tube 23 is smaller than the bottom surface area of the conical tube, a motor device is arranged below the conical tube 23, and the bottom of the motor device is arranged at the bottom in the case 1.

The motor device comprises a motor 20, the motor 20 is positioned at the bottom of the case 1, a rotary table 21 is connected to the output end of the motor 20, the rotary table 21 is arranged between the inner walls of the circumference of the rotating groove 25, a plurality of arc-shaped fan blades 22 are fixedly connected to the top end of the rotary table, and each arc-shaped fan blade 22 extends into the conical tube 23.

The rotation groove 25 is provided for accommodating the rotation disc 21, the motor 20 is provided with power for rotation of the arc-shaped blades 22, the rotation disc 21 supports and fixes the arc-shaped blades 22, and the arc-shaped blades 22 adopt a special curve shape and rotate to guide air around the case 1 into the tapered tube 23 to provide power for air circulation.

A plurality of first filter screens 7 are fixedly connected between the upper inner wall and the lower inner wall of the air inlet box 26, the first filter screens 7 correspond to the air inlet holes 6, and the air outlet holes 5 are formed in the top of the case 1.

In the invention, the plurality of first filter screens 7 are used for filtering large particle impurities suspended in the air, so that the large particle impurities are prevented from entering the machine case 1 to interfere with the operation of the device, and the air outlet holes 5 are formed to facilitate the discharge of fresh air after filtering.

In the present invention, the control panel 8 is connected to the motor 20, and the operation of the purifier is controlled by the control panel 8.

The following is a detailed description of the working method of the household air purifier:

s1, releasing self-locking:

the button 4 is pressed, the button 4 moves downwards to push the telescopic push rod 30, the telescopic push rod 30 presses the pawl 29 downwards, the unidirectional clamping of the unidirectional ratchet wheel 15 is released through the movement of the pawl 29, and the self-locking of the movable frame 3 is released;

s2, reverse extrusion:

when the self-locking of the movable frame 3 is released, the torsion spring 17 extends, the torsion spring 17 pushes the rotating shaft 14 to rotate so as to drive the gear 13 to rotate, and the movable frame 3 is reversely pushed out of the accommodating box 24 under the meshing of the gear 13 and the rack 12;

s3, sliding guide:

in the process of reversely pushing out the movable frame 3, the two sliding blocks 19 are in sliding fit with the two sliding grooves 18, so that the movable frame 3 is slidably guided;

s4, disassembling the second filter screen 11:

pushing the second filter screen 11 upwards from the bottom of the accommodating box 24, and ejecting the second filter screen 11 out of the filter tank 10 to finish the disassembly of the second filter screen 11;

s5, replacing a third filter screen:

embedding a third filter screen to be replaced into the second filter screen, buckling the buckling groove 9, pushing the movable frame 3 to move into the accommodating box 24, guiding and limiting the movement of the movable frame 3 through the sliding fit of the two sliding grooves and the sliding block, pushing the third filter screen into the accommodating box 24, and enabling the third filter screen to be in the same axial line with the spring 28 and the conical pipe 23, so as to realize the replacement of the third filter screen;

s6, power storage:

in the moving process of the movable frame 3, the two racks 12 are meshed with the two gears 13, the two racks 12 drive the two rotating shafts 14 to rotate by pushing the two gears 13 to rotate, the two rotating shafts 14 contract the two torsion spring boxes 16 by rotating, and the force storage is realized by the contraction of the two torsion spring boxes 16;

s7, self-locking:

the telescopic push rod 30 is pulled to move upwards in the process of lifting the button 4 by the sliding groove 18, the pawl 29 is pulled by the telescopic push rod 30 to be clamped with the one-way ratchet wheel 15, the one-way ratchet wheel 15 is driven to rotate in the rotating process of the rotating shaft 14, the one-way ratchet wheel 15 is clamped with the rotating shaft 14 in the one-way mode, the rotation of the gear 13 is limited, and then the self-locking of the movable frame 3 is achieved.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto.

Although terms such as cabinet, jack, cradle, button, vent, etc. are used more often herein, the possibility of using other terms is not excluded, and these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

It is further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (8)

1. The utility model provides a domestic air purifier, its includes quick-witted case (1) the shell of quick-witted case (1) on be provided with inlet port (6), inlet port (6) with be located air inlet box (26) intercommunication in quick-witted case (1), through inlet port (6) let in fresh air in air inlet box (26) the top of the shell of quick-witted case (1) be provided with venthole (5), its characterized in that:

the middle upper part of the shell of the case (1) is provided with a plug hole (2), an accommodating box (24) is arranged in the case (1) with the same horizontal height as the plug hole (2), the plug hole (2) is in butt joint with the accommodating box (24), a movable frame (3) is inserted in the accommodating box (24), and the top of the movable frame (3) is provided with a filter;

a first linkage mechanism and a second linkage mechanism are respectively arranged on two sides of the movable frame (3), have the same structure and respectively comprise a transmission assembly, a ratchet wheel assembly, a force storage assembly and a sliding assembly;

the transmission assembly comprises a rotating shaft (14), a gear (13) and a rack (12), the rotating shaft (14) is movably inserted into the side wall of the containing box (24), one end of the rotating shaft (14) extends into the containing box (24) through the side wall of the containing box (24), the other end of the rotating shaft is positioned outside the containing box (24), the rack (12) is fixedly connected to the side end of the movable frame (3), the gear (13) is fixedly connected to one end of the rotating shaft (14) positioned in the containing box, and the gear (13) is meshed with the rack (12);

the ratchet wheel assembly comprises a button (4), a fixing frame (27), a spring (28), a pawl (29), a telescopic push rod (30) and a one-way ratchet wheel (15), wherein the one-way ratchet wheel (15) is fixedly connected to the circumferential surface of a rotating shaft (14) positioned outside the accommodating box (24), the button (4) is arranged at the top of the case (1), the telescopic push rod (30) is arranged in the case (1) extending downwards at the position corresponding to the button (4), the top end of the telescopic push rod (30) is connected to the button (4), the bottom end of the telescopic push rod is connected with the pawl (29), and the pawl (29) is arranged on one side close to the one-way ratchet wheel (15) and is in one-way clamping with the one-way ratchet wheel (15); the spring (28) is positioned in the fixed frame (27), the fixed frame (27) and the spring (28) are both sleeved on the outer surface of the telescopic push rod (30), and the other side of the fixed frame (27) is fixedly connected to the inner wall of the case (1);

the power storage assembly comprises a torsion spring box (16) and a torsion spring (17), one side of the torsion spring box (16) is sleeved on the outer surface of a rotating shaft (14) positioned outside the accommodating box (24), the torsion spring box (16) is fixedly connected to the inner wall of the case (1), the torsion spring (17) is arranged in the torsion spring box (16), and the end part of the rotating shaft (14) positioned outside the accommodating box (24) is connected with the torsion spring (17);

the sliding assembly comprises two sliding grooves (18) and two sliding blocks (19), the two sliding grooves (18) are respectively positioned on the opposite inner walls of the accommodating box (24), the sliding blocks (19) are fixedly connected to the side ends of the two racks (12), and the two sliding blocks (19) slide in the two sliding blocks (19); the movable frame (3) can slide out of the accommodating box (24) smoothly through the sliding assembly;

a conical pipe (23) is arranged below the containing box (24), the area of the top surface of the conical pipe (23) is smaller than that of the bottom surface of the conical pipe, a motor device is arranged below the conical pipe (23), and the bottom of the motor device is arranged at the bottom in the case (1).

2. A household air purifier as claimed in claim 1, wherein: the filter comprises a filter tank (10) and a second filter screen (11), wherein the second filter screen (11) is inserted into the inner wall of the filter tank (10).

3. A domestic air purifier as claimed in claim 1, wherein: and a buckling groove (9) is arranged on the outer side of the movable frame (3).

4. A domestic air purifier as claimed in claim 1, wherein: the motor device include motor (20), motor (20) are located the bottom of quick-witted case (1), are connected with carousel (21) at the output of motor (20), carousel (21) set up between the circumference inner wall of rotating groove (25), at the top fixedly connected with a plurality of arc flabellum (22) of carousel to every arc flabellum (22) all stretch into conical tube (23) in.

5. A domestic air purifier as claimed in claim 1, wherein: the air inlet holes (6) are arranged in a square or rectangular shape, the shell of the case (1) is of a cuboid structure, and the air inlet holes (6) are arranged on at least two side plates of four side plates of the shell of the case (1).

6. A domestic air purifier as claimed in claim 5, wherein: a first filter screen (7) is arranged on the air inlet box (26) opposite to the air inlet hole, and a control screen (8) is arranged at the side end of the case (1).

7. A domestic air purifier as claimed in claim 1, wherein: the telescopic push rod (30) is rotatably connected to the side end of the pawl (29) through a hinge shaft.

8. A working method of a domestic air cleaner according to any one of claims 1 to 7, comprising the following steps in sequence:

s1, releasing self-locking:

the button (4) is pressed, the button (4) moves downwards to push the telescopic push rod (30), the telescopic push rod (30) presses the pawl (29) downwards, the unidirectional clamping of the unidirectional ratchet wheel (15) is released through the movement of the pawl (29), and the self-locking of the movable frame (3) is released;

s2, reverse ejection:

when the self-locking of the movable frame (3) is released, the torsion spring (17) extends, the torsion spring (17) pushes the rotating shaft (14) to rotate so as to drive the gear (13) to rotate, and the movable frame (3) is reversely pushed out from the accommodating box (24) under the meshing of the gear (13) and the rack (12);

s3, sliding guide:

in the process of reversely pushing the movable frame (3), the two sliding blocks (19) are in sliding fit with the two sliding grooves (18) to realize sliding guide on the movement of the movable frame (3);

s4, detaching the second filter screen (11):

pushing the second filter screen (11) upwards from the bottom of the accommodating box (24) to eject the second filter screen (11) out of the filter tank (10) to finish the disassembly of the second filter screen (11);

s5, replacing a third filter screen:

a third filter screen to be replaced is embedded into the second filter screen (11), the buckling groove (9) is buckled, the movable frame (3) is pushed to move towards the accommodating box (24), the movable frame (3) is guided and limited to move through the sliding fit of the two sliding grooves (18) and the sliding block (19), and the third filter screen is pushed into the accommodating box (24) to be positioned on the same axial line with the spring (28) and the conical pipe (23), so that the third filter screen is replaced;

s6, power storage:

in the moving process of the movable frame (3), the two racks (12) are meshed with the two gears (13), the two racks (12) push the two gears (13) to rotate, the two gears (13) rotate to drive the two rotating shafts (14) to rotate, the two rotating shafts (14) rotate to contract the two torsion spring boxes (16), and force storage is realized through the contraction of the two torsion spring boxes (16);

s7, self-locking:

the telescopic push rod (30) is pulled to move upwards in the process that the sliding groove (18) lifts the button (4), the telescopic push rod (30) pulls the pawl (29) to be clamped with the one-way ratchet wheel (15), the one-way ratchet wheel (15) is driven to rotate in the rotating process of the rotating shaft (14), the one-way ratchet wheel (15) is clamped with the rotating shaft (14) in one direction, the rotation of the rotating shaft (14) is limited, the rotation of the gear (13) is limited through the one-way clamping of the one-way ratchet wheel (15) and the pawl (29), and then the self-locking of the movable frame (3) is realized.

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