CN111870181A

CN111870181A - Hand-held vacuum cleaner

Info

Publication number: CN111870181A
Application number: CN202010879527.1A
Authority: CN
Inventors: 陈令勋
Original assignee: Dongguan Zhimei Life Electronic Technology Co ltd
Current assignee: Dongguan Zhimei Life Electronic Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-11-03

Abstract

The present invention provides a hand-held cleaner, characterized by comprising: a first cyclone separator; a second cyclone separator downstream of the first cyclone separator; wherein the first cyclone separator comprises: the upper end of the filter cover is detachably connected with the second cyclone separator to form a whole; the second cyclone separator is detachably connected with the cylinder body, so that the second cyclone separator seals the opening at the upper end of the cylinder body, the filter cover is inserted into the cylinder body, and an annular cavity formed between the filter cover and the cylinder body forms a cyclone cavity of the first cyclone separator. The invention can realize the disassembly and assembly of all parts of the dust collector.

Description

Hand-held vacuum cleaner

Technical Field

The invention relates to a handheld dust collector.

Background

Handheld vacuum cleaners are often provided with two stages of cyclones, a first cyclone comprising a larger annular chamber and a second cyclone, the airflow entering the annular chamber forming a cyclonic airflow which then enters the second cyclone and again generates a cyclonic airflow through the second cyclone to remove dirt. However, at present, the first cyclone separator and the second cyclone separator need to be disassembled and assembled through complex structures, so that the disassembling and the assembling are inconvenient, and the user experience feeling is poor.

Disclosure of Invention

In view of this, it is necessary to provide a handheld vacuum cleaner to achieve the assembly and disassembly of the components of the vacuum cleaner.

The present invention provides a hand-held cleaner, comprising:

a first cyclone separator;

a second cyclone separator downstream of the first cyclone separator;

wherein the first cyclone separator comprises:

the upper end of the filter cover is detachably connected with the second cyclone separator to form a whole;

the second cyclone separator is detachably connected with the cylinder body, so that the second cyclone separator seals the opening at the upper end of the cylinder body, the filter cover is inserted into the cylinder body, and an annular cavity formed between the filter cover and the cylinder body forms a cyclone cavity of the first cyclone separator.

According to the scheme, when the cyclone dust collector is installed, the filter cover of the first cyclone separator is preferentially installed on the second cyclone separator to form a whole, then the second cyclone separator and the cylinder of the first cyclone separator are installed, the filter cover is inserted into the cylinder, a ring cavity is formed between the filter cover and the cylinder at the moment, the ring cavity forms a cyclone cavity of the first cyclone separator, if the cylinder or the dust and dirt of the filter cover need to be cleaned, the first cyclone separator can be detached and then directly taken out of the filter cover, and the cylinder and the filter cover can be conveniently and independently cleaned.

Furthermore, a collecting cavity is formed after the filter cover is clamped with the second cyclone separator, the collecting cavity collects dust discharged from a dust outlet of the second cyclone separator, and an airflow cavity for air flow to enter an inlet of the second cyclone separator is arranged between the collecting cavity and the cyclone cavity.

Furthermore, second cyclone includes the chamber shell, the chamber shell includes first rampart, the dust outlet intercommunication the chamber shell, the inboard of filter mantle has second rampart, the filter mantle with behind the second cyclone joint, first rampart with second rampart butt joint constitutes the collection chamber.

Furthermore, the collection cavity is limited by a ring arm, the lower end of the ring arm extends to abut against a bottom cover, and the bottom cover is arranged on the barrel body in an openable and closable manner to open and close the collection cavity.

Further, the bottom cover opens and closes the collection chamber and simultaneously opens and closes the cyclone chamber.

The present invention provides a hand-held cleaner comprising a front end portion and a rear end portion, the front end portion comprising:

a first cyclone separator;

a second cyclone separator downstream of the first cyclone separator;

wherein the first cyclone separator comprises:

the second cyclone separator is detachably connected with the cylinder body, so that the second cyclone separator seals the opening at the upper end of the cylinder body and simultaneously inserts the filter cover into the cylinder body, and an annular cavity formed between the filter cover and the cylinder body forms a cyclone cavity of the first cyclone separator;

the rear end part is inserted into the barrel in the direction perpendicular to the front-back direction, the front end of the rear end part is in contact with the second cyclone separator to form a limiting part, and the limiting part is used for limiting the rotation of the second cyclone separator after being clamped with the barrel.

Known through above scheme, hand-held type dust catcher need be according to the dismouting of order, dismantle the in-process, need in advance with rear end part from the tip part roll-off, then just can withdraw from the screens with second cyclone from first cyclone's barrel horizontal rotation and dismantle, and then just can dismantle the filter mantle, therefore when second cyclone and barrel joint, can not need to set up location structure in screens department in order to fix behind second cyclone and the rotatory joint of barrel, can accomplish the rotation restriction to second cyclone through the rear end part.

Further, the second cyclone separator comprises a downstream airflow outlet pipeline, the rear end part comprises an airflow inlet pipeline, and after the rear end part is spliced with the cylinder, the airflow inlet pipeline is in butt joint with the airflow outlet pipeline.

Furthermore, the rear end face of the airflow outlet pipeline face is an inclined face, the inclined face inclines towards the rear end in the insertion direction of the rear end portion, the front end face of the airflow outlet pipeline is the same as the inclined face in the inclination direction, an annular sealing element is arranged on the rear end face or the front end face, and along with the insertion of the rear end portion and the barrel body, the sealing element is tightly pressed between the rear end face and the front end face to seal the airflow inlet pipeline and the airflow outlet pipeline after butt joint.

Further, the outside of barrel is equipped with first terminal, the conductor warp that first terminal is connected the barrel extends to the suction line of front end, the rear end portion include controlling means and with the second terminal that controlling means electricity is connected, the rear end portion with the barrel is pegged graft the back, first terminal with the contact of second terminal switches on.

Further, the outside of barrel extends there is the separation blade, the rear end portion is equipped with the pivot, the pivot side has fender portion, and is rotatory the pivot makes fender portion with the separation blade butt is in order to restrict the rear end portion with the separation after the barrel is pegged graft, and is rotatory the pivot makes fender portion with the separation blade staggers so that the rear end portion with the separation after the barrel is pegged graft.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a front end portion of an embodiment of the present invention.

Fig. 3 is a schematic diagram of the rear portion of an embodiment of the present invention.

Fig. 4 is a cross-sectional view of the front end portion of an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a cylinder according to an embodiment of the present invention

Fig. 6 is a schematic structural view of the second cyclone separator and the filter screen rotating clamp in a clamping manner according to an embodiment of the present invention.

Fig. 7 is a schematic view of the air flow outlet duct and the air flow inlet duct of the present invention in butt-sealing relation.

Reference numerals: a hand-held cleaner 100; a front end portion 10; a rear end portion 20; cyclonic separating apparatus 11; a suction duct 12; a housing 21; an upper case 211; a front case 212; a lower case 213; a handle 214; a first cyclone separator 110; a cylinder 111; a filter housing 112; a bottom cover 113; the first opening 111A; the second opening 111B; sled 2131; a hook 2132; an operating end 2133; a second cyclone 120; a housing 121; a cyclone 122; a cavity 123; a chamber housing 124; a gas flow inlet 1221; an airflow outlet 1222; a dust outlet 1223; a first snap structure 1211; a second snap feature 1111; a third snap structure 1212; a fourth snap structure 1121; a positioning structure 101; a cyclone chamber 102; a first L-shaped hook 31; a first slot 2121; a second L-shaped hook 32; a second slot 2111; a stopper piece 111C; a rotating shaft 2122; a stopper 2123; a first terminal 111D; a second terminal 2124; a collection chamber 103; an airflow chamber 104; a first loop arm 201; a second loop arm 202; a filter 40; a cover 50; the first filter unit 41; a second filter unit 42; an airflow outlet duct 125; a first cavity 1231; a second lumen 1232; a partition 1233; a horizontal partition plate 43; a rear end face 1251; a front end face 2113; a seal 50.

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, a hand-held cleaner 100 includes a front end portion 10 and a rear end portion 20.

As shown in fig. 2, the front end portion 10 includes a cyclone separation device 11 and a suction duct 12 provided at a front end of the cyclone separation device 11, a front end of the suction duct 12 is a suction port, and the suction duct 12 is used for mounting a dust suction head to communicate with the suction port.

As shown in fig. 3, the rear end portion 20 includes a housing 21, and an airflow generator and a battery assembly (not shown) disposed in the housing 21, the housing 21 includes an upper shell 211, a front shell 212, a lower shell 213, and a handle 214, the upper end of the front shell 212 is connected to the upper shell 211, the lower end of the front shell is connected to the lower shell 213, the upper end of the handle 214 is connected to the upper shell 211, the lower end of the handle 214 is connected to the lower shell 213, the front shell 212 is disposed at the front end of the handle 214, and a gap between the handle 214 and the front shell 212 is used for accommodating fingers of a user holding the handle 214.

The airflow generator and the battery assembly can be arranged in the upper shell 211 and the airflow generator is positioned at the front end of the battery assembly, the battery assembly is used for supplying power to the airflow generator so as to provide electric energy, and the airflow generator is used for providing power flowing through the cyclone separation device 11.

The front portion 10 communicates with the rear portion 20 and the airflow filtered by the cyclonic separating apparatus 11 passes from the front portion 10 into the rear portion 20.

In the present embodiment, the rear end of the front end portion 10 is inserted into the front end of the rear end portion 20, and the insertion direction is a vertical direction. In this way, the hand-held cleaner 100 can be separated into two main bodies, one is the independent front end portion 10, and the other is the independent rear end portion 20, and if the front end portion 10 or the rear end portion 20 is damaged and needs to be repaired, only the part needing to be repaired can be carried, and the whole hand-held cleaner 100 does not need to be carried.

As shown in fig. 4 and 5, the cyclonic separating apparatus 11 comprises a first cyclone 110, and the first cyclone 110 is an upstream cyclone. The first cyclone separator 110 includes a cylinder 111 and a filter cover 112 disposed in the cylinder 111, and the filter cover 112 is annular. The upper end of the cylinder 111 has a first opening 111A, and the lower end of the cylinder 111 has a second opening 111B. A bottom cover 113 is hinged to the second opening 111B, and the bottom cover 113 can be connected by a front end hook 2132 of a sliding plate 2131 arranged on the lower shell 213, so that the bottom cover 113 covers or uncovers the second opening 111B. The operating end 2133 of the sliding plate 2131 is located below the handle 214, so that the user operates the sliding plate 2131 at the operating end 2133 to disengage the hook 2132 from the bottom cover 113, so that the bottom cover 113 opens the second opening 111B to release dirt in the barrel 111, and the dirt is less likely to be splashed on the hand of the user due to the fact that the operating end 2133 is far away from the second opening 111B.

With continued reference to fig. 4, the cyclonic separating apparatus 11 includes a second cyclone 120, the second cyclone 120 being an upstream cyclone. The second cyclone separator 120 includes a housing 121 and a plurality of cyclones 122, and the cyclones 122 may be installed through the housing 121 to be integrated. The housing 121 may form a cavity 123, and the cavity 123 is above the cyclone 122. The cyclone 122 has a generally conical shape with a cone end at a lower end, the cyclone 122 includes an air inlet 1221 near an upper end, an air outlet 1222, and a dust outlet 1223, and the upper end of the cyclone 122 may be mounted through the partition 1233 of the housing 21 such that the air outlet 1222 communicates with the cavity 123.

As shown in fig. 5 and 6, the housing 121 of the second cyclone separator 120 is provided with a first snap structure 1211, and the inner side wall of the cylinder 111 is provided with a second snap structure 1111. A third buckling structure 1212 is disposed on the casing 121 of the second cyclone separator 120, wherein the third buckling structure 1212 is located below the first buckling structure 1211, a fourth buckling structure 1121 is disposed at the upper end of the filter cover 112, the diameter of the filter cover 112 is smaller than that of the cylinder 111, and corresponding positioning structures 101 are disposed on the second cyclone separator 120 and the filter cover 112.

Preferentially, the filter cover 112 and the second cyclone separator 120 are detachably and rotatably clamped, and in the clamping process, the positioning structure is matched to realize the clamping and positioning of the filter cover 112 and the second cyclone separator 120 so as to prevent the filter cover 112 from being easily clamped relative to the second cyclone separator 120 and being withdrawn. Then, the second cyclone separator 120 carrying the filter cover 112 is inserted into the cylinder 111 from the first opening 111A of the cylinder 111, so that the second cyclone separator 120 is horizontally and rotationally clamped with respect to the cylinder 111.

After the above operation is completed, the second cyclone separator 120 closes the first opening 111A, the filter cover 112 is disposed in the cylinder 111, the annular cavity 102 is formed between the filter cover 112 and the cylinder 111, the annular cavity 102 forms the cyclone chamber 102 of the first cyclone separator 110, the cyclone chamber 102 is communicated with the suction duct 12, and the airflow entering the suction duct 12 swirls into the cyclone chamber 102 and is filtered by the filter cover 112 to enter the inner side of the filter cover 112.

Referring back to fig. 2 and 3, the rear side of the barrel 111 is provided with opposite first L-shaped hooks 31, a hook portion of one of the first L-shaped hooks 31 faces left, a hook portion of the other first L-shaped hook 31 faces right, a first slot 2121 into which the hook portion of the first L-shaped hook 31 is vertically inserted is provided at the front shell 212, and the first slot 2121 is a vertical slot. The second cyclone 120 is provided with a second L-shaped hook 32, a hook portion of the second L-shaped hook 32 faces upward, the upper case 211 is provided with a second slot 2111 for the hook portion of the second L-shaped hook 32 to be vertically inserted, and the second slot 2111 is a vertical slot. When the front portion 10 and the rear portion 20 are vertically inserted, the hook of the first L-shaped hook 31 is inserted into the first slot 2121, the second L-shaped hook 32 is inserted into the second slot 2111, the L-shaped hook prevents the rear portion 20 from moving backward and separating relative to the front portion 10, and the first L-shaped hook 31 and the second L-shaped hook 32 enable the rear portion 20 to be fully engaged with the front portion 10 and not easily sway.

With continued reference to fig. 2 and 3, a stop 111C extends from the outside of the barrel 111, and the rear end portion 20 is provided with a rotating shaft 2122. The rotation shaft 2122 extends in the same direction as the plugging direction (vertically downward in this embodiment), and an end of the rotation shaft 2122 preferably extends to the lower surface of the lower housing 213, so as to hide the rotation shaft 2122. The side of the rotating shaft 2122 is provided with a blocking part 2123, the rotating shaft 2122 is rotated to make the blocking part 2123 staggered with the blocking piece 111C so as to facilitate the separation of the rear end part 20 after being inserted into the barrel 111, and the rotating shaft 2122 is rotated to make the blocking part 2123 abut against the blocking piece 111C so as to limit the separation of the rear end part 20 after being inserted into the barrel 111.

With continuing reference to fig. 2 and 3, a first terminal 111D is disposed at the outer rear side of the cylinder 111, a conductor connected to the first terminal 111D extends to the suction pipe 12 at the front end through the cylinder 111, and a contact terminal connected to the conductor may be disposed at the suction pipe 12, and the contact terminal is used for electrically connecting a dust suction head connected to the suction pipe 12. The front housing 212 is provided with a second terminal 2124, the second terminal 2124 is electrically connected to a control device in the rear end portion 20, and after the rear end portion 20 is plugged into the barrel 111, the first terminal 111D is in contact with the second terminal 2124, so that the battery assembly can supply power to the dust collection head or can control the operation of the dust collection head.

Referring to fig. 1, the front end of the upper case 211 contacts the second cyclone separator 120 to form a limiting portion, and the limiting portion limits the rotation of the second cyclone separator 120 after being clamped with the cylinder 111. Therefore, when the rear end portion 20 is detached from the front end portion 10, the second cyclone separator 120 can be detached from the cylinder 111, and the filter cover 112 can be detached, and when the second cyclone separator 120 is engaged with the cylinder 111, it is not necessary to additionally provide a positioning structure at the engaging position to fix the second cyclone separator 120 and the cylinder 111 after the second cyclone separator 120 is rotationally engaged with the cylinder 111, and the rotation limitation of the second cyclone separator 120 can be completed by the rear end portion 20.

Continuing to refer to fig. 4, the filter cover 112 is clamped with the second cyclone separator 120 to form a collecting cavity 103, the dust outlet 1223 of the cyclone 122 is located above the collecting cavity 103, and dust and dirt are discharged into the collecting cavity 103 and collected. An airflow chamber 104 is provided between the collection chamber 103 and the cyclone chamber 102 for airflow to enter the inlet of the second cyclone separator 120, and airflow filtered by the filter housing 112 enters the airflow chamber 104 and flows to the airflow inlet 1221 above the cyclone 122 to enter the cyclone 122.

The collection chamber 103 is defined by a ring arm having a lower end extending into abutment with the bottom cover 113, the opening of the bottom cover 113 opening the lower end of the collection chamber 103, and the closing of the bottom cover 113 closing the collection chamber 103. The cyclone chamber 102 is located at the periphery of the collection chamber 103, and after the bottom cover 113 is opened, the collection chamber 103 and the cyclone chamber 102 are opened at the same time, so that small dirt remaining in the collection chamber 103 and large dirt remaining in the cyclone chamber 102 can be removed at the same time.

The second cyclone separator 120 further comprises a chamber shell 124 located at the bottom, the chamber shell 124 comprises a first annular arm 201 extending downwards, the dust outlet 1223 is communicated with the chamber shell 124, a second annular arm 202 is arranged on the inner side of the filter cover 112, and after the filter cover 112 is clamped with the second cyclone separator 120, the first annular arm 201 and the second annular arm 202 are butted to form the collection chamber 103, so that when the filter cover 112 is detached from the second cyclone separator 120, the first annular arm 201 and the second annular arm 202 are separated, and the inner side wall of the filter cover 112, the inner and outer walls of the first annular arm 201 and the inner and outer walls of the second annular arm 202 are conveniently wiped.

With continued reference to fig. 4, the filter 40 is disposed in the cavity 123 above the cyclone 122, the housing 121 is provided with a lid 50 that can be opened and closed, and the lid 50 is opened to remove the filter 40 from the cavity 123, so that the user can replace the filter 40 directly without sending the filter to a maintenance site for replacement. In this embodiment, the cover 50 is disposed on the top of the housing 121, and the cover 50 can be disposed on the housing 121 by a rotary clamping manner or a screw connection manner or a hinge manner.

The filter 40 includes a first filtering unit 41 and a second filtering unit 42. The cyclones 122 include a first set of cyclones and a second set of cyclones, which may include a plurality of cyclones 122, the airflow outlet 1222 of each cyclone 122 of the first set of cyclones communicates with the first filter unit 41 to form a first air passage, the airflow outlet 1222 of each cyclone 122 of the second set of cyclones communicates with the second filter unit 42 to form a second air passage, the first air passage and the second air passage communicate with a downstream airflow outlet duct 125 provided on the housing 121, and the airflow converges in the airflow outlet duct 125 again to enter the rear end portion 20.

The airflow is divided in the cavity 123, so that the air flowing out from the two sets of cyclones 122 is filtered by the

filtering units

41 and 42 respectively without interfering with each other, the filtering area is increased, the resistance of the airflow flowing through the filter 40 is reduced, the flow velocity loss of the airflow is reduced, and the dust collection capacity of the dust collection and suction is effectively improved.

In this embodiment, the cavity 123 is divided into a first cavity 1231 and a second cavity 1232 by a partition 1233, the first filter unit 41 communicates with the airflow outlet 1222 of each cyclone 122 of the first set of cyclones via the first cavity 1231, and the second filter unit 42 communicates with the airflow outlet 1222 of each cyclone 122 of the second set of cyclones via the second cavity 123.

More specifically, the first set of cyclones with the second set of cyclones all distributes around vertical axis, the first set of cyclones is located the periphery of second set of cyclones, baffle 1233 is cyclic annular, the warp baffle 1233 will cavity 123 divide into interior cavity 1231 and peripheral cavity 1232. The filter 40 is disposed inside the partition 1233, the first filter unit 41 is stacked above the second filter unit 42, and the horizontal partition 43 and the partition 1233 disposed between the first filter unit 41 and the second filter unit 42 divide the cavity 123 into the first air passage and the second air passage, so that the filter 40 is more regularly accommodated in the cavity 123.

The first filter unit 41 includes a first annular filter element around the axis, the second filter unit 42 includes a second annular filter element around the axis, the airflow from the airflow outlet 1222 of the first set of cyclones flows through the top of the peripheral cavity into the inner cavity (the top of the partition 1233 is provided with an air port), and diffuses outwards from the middle of the first annular filter element to be filtered by the first annular filter element, and the airflow from the airflow outlet 1222 of the second set of cyclones flows directly through the middle of the second annular filter element to be filtered by the second annular filter element, so that the space of the cavity 123 is fully utilized, and the volume of the cavity 123 is reduced.

The outer sides of the first annular filter element and the second annular filter element are respectively provided with an annular airflow channel, the two annular airflow channels are communicated to the airflow outlet pipeline 125 at the same side, and airflow entering the annular filter elements can be diffused from the annular airflow channels at the outer sides of the annular filter elements in all directions, so that the filtering area of the airflow at the filter elements is increased, and the dust collection resistance is reduced.

The cover 50 is positioned above the filter 40, the filter 40 and the cover 50 may be of an integral structure, the filter 40 is inserted into or removed from the cavity with the cover 50, or the filter 40 and the cover 50 may be separated, the filter 40 is vertically compressed in the inner cavity by the cover 50, and the gas flow outlet duct 125 is positioned at a rear side of the filter 40 to be connected to the upper case 211.

As shown in fig. 2, 3 and 7, the upper housing 211 has an airflow inlet channel 2112, and when the rear portion 20 is plugged into the front portion 10, the airflow inlet channel 2112 interfaces with the airflow outlet channel 125 such that the airflow outlet channel 125 communicates with the airflow generator. In this embodiment, the airflow inlet 2112 is an inlet of the airflow generator, and when the rear portion 20 is plugged into the front portion 10, the airflow generator directly aligns with the cavity 123 to form a strong negative pressure.

A rear end face 1251 of the air outlet port duct 125 is an inclined face which is inclined toward a rear end in the insertion direction (vertically downward in the present embodiment) of the rear end portion 20, a front end face 2113 of the air inlet port duct 2112 is inclined in the same direction as the inclined face, an annular seal 50 is provided on the rear end face 1251 or the front end face 2113, the rear end face 1251 and the front end face gradually come into abutment in an inclined face manner as the rear end portion 20 is vertically inserted into the cylinder 111, and the seal 50 is pressed between the rear end face 1251 and the front end face 2113 with high reliability, so that air leaks through a gap between the air inlet port duct 2112 and the air outlet port duct 125 via the seal 50.

Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.

Some features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, certain features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A hand-held cleaner, comprising:

a first cyclone separator;

a second cyclone separator downstream of the first cyclone separator;

wherein the first cyclone separator comprises:

2. The hand-held cleaner of claim 1, wherein the filter housing is engaged with the second cyclone separator to form a collection chamber for collecting dust discharged from the dust outlet of the second cyclone separator, and an airflow chamber for airflow into the inlet of the second cyclone separator is provided between the collection chamber and the cyclone chamber.

3. The hand-held vacuum cleaner of claim 2, wherein the second cyclone separator comprises a chamber shell, the chamber shell comprises a first annular arm, the dust outlet communicates with the chamber shell, a second annular arm is arranged on the inner side of the filter cover, and after the filter cover is clamped with the second cyclone separator, the first annular arm and the second annular arm are butted to form the collection chamber.

4. The hand-held cleaner of claim 2, wherein the collection chamber is defined by a collar arm having a lower end extending into abutment with a bottom cover openably provided on the canister to open and close the collection chamber.

5. The hand-held cleaner of claim 4, wherein the bottom cover opens and closes the cyclone chamber while opening and closing the collection chamber.

6. A hand-held cleaner comprising a front end portion and a rear end portion, the front end portion comprising:

a first cyclone separator;

a second cyclone separator downstream of the first cyclone separator;

wherein the first cyclone separator comprises:

7. The hand-held cleaner of claim 6, wherein the second cyclonic separator includes a downstream airflow outlet duct, the rear end portion includes an airflow inlet duct, and the airflow inlet duct interfaces with the airflow outlet duct upon mating with the canister.

8. The hand-held cleaner according to claim 7, wherein a rear end surface of the airflow outlet duct surface is a slope surface which is inclined in such a manner that the insertion direction of the rear end portion is toward a rear end, a front end surface of the airflow outlet duct surface is inclined in the same direction as the slope surface, an annular seal member is provided on the rear end surface or the front end surface, and the seal member is pressed between the rear end surface and the front end surface to seal the airflow inlet duct and the airflow outlet duct after being abutted therewith as the rear end portion is inserted into the cylinder.

9. The hand-held vacuum cleaner according to claim 8, wherein a first terminal is provided on the outer side of the cylinder, the conductor connected with the first terminal extends to the suction pipe at the front end through the cylinder, the rear end part comprises a control device and a second terminal electrically connected with the control device, and the first terminal and the second terminal are in contact conduction after the rear end part is plugged with the cylinder.

10. The hand-held vacuum cleaner as claimed in claim 6, wherein a blocking piece extends from the outer side of the cylinder, a rotating shaft is arranged at the rear end, a blocking part is arranged at the side edge of the rotating shaft, the rotating shaft is rotated to enable the blocking part to abut against the blocking piece to limit the separation of the rear end part and the cylinder after being plugged, and the rotating shaft is rotated to enable the blocking part to be staggered with the blocking piece to facilitate the separation of the rear end part and the cylinder after being plugged.