CN210124715U

CN210124715U - Hand-held cleaning device

Info

Publication number: CN210124715U
Application number: CN201920654224.2U
Authority: CN
Inventors: 周威
Original assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-03-06
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a hand-held type cleaning device, include: the motor module is used for generating flowing air flow; a handle adapted to be grasped in use; the power supply module is used for supplying power; the cyclone separation module comprises at least two stages of cyclone units which are connected in series, each stage of cyclone unit is provided with a chamber and a cyclone cone arranged in the chamber, all the chambers are mutually independent and arranged side by side, and the chambers between the two stages of cyclone units positioned on the upstream and the downstream of the airflow are communicated through a fluid passage. According to the utility model discloses hand-held type cleaning device, because cyclone component includes the first order whirlwind unit and the second level whirlwind unit of establishing ties each other, simplified cyclone component's structure, simplified fluid passage's structure to hand-held type cleaning device's structure has been simplified, the efficiency of cyclone's dust removal has been improved.

Description

Hand-held cleaning device

Technical Field

The utility model relates to a cleaning device technical field especially relates to a hand-held type cleaning device.

Background

At present, the multi-stage cyclone separation system is a popular selling point in the dust collector industry and has great commercial application in the dust collector industry. Handheld vacuum cleaners, which are one of the most important aspects of the current industry development, use a multi-stage cyclonic separation system comprising a single first separation unit and a plurality of second cyclonic separation units through which air with debris enters the air inlet duct. In operation, larger garbage and partial dust are separated from the air flow in the first cyclone separation unit, and large-particle garbage and foreign matters are collected in the first dust cavity; then the airflow with part of fine dust particles enters a second cyclone separation device, and most of dust particles are collected in a second dust cavity through the second cyclone separation device; a very small part of the dust is separated from the air again in the separation unit, and finally the air flow with a small amount of dust is filtered by the filter cotton and discharged into the air.

However, due to the limitation of volume and other factors, the conventional cyclone separation device of the dust collector generally places the second cyclone separation unit inside the first cyclone separation unit, and the excessively complex structure occupies the effective volume of the dust cup, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a hand-held type cleaning device, hand-held type cleaning device structure is comparatively simple, convenient the dismantlement, and the runner is simple, filtration efficiency is higher.

According to the utility model discloses hand-held type cleaning device, include: a motor module for generating a flowing air stream; a handle adapted to be grasped in use; the power module is used for supplying power and is connected to the lower end of the handle and positioned below the motor module; the cyclone separation module comprises at least two stages of cyclone units which are connected in series, each stage of cyclone unit is provided with a chamber and a cyclone cone arranged in the chamber, all the chambers are mutually independent and arranged side by side, and the chambers between the two stages of cyclone units positioned on the upstream and the downstream of airflow are communicated through a fluid channel.

According to the utility model discloses hand-held type cleaning device, because cyclone component includes the first order whirlwind unit and the second level whirlwind unit of establishing ties each other, simplified cyclone component's structure, simplified fluid passage's structure to hand-held type cleaning device's structure has been simplified, the efficiency of cyclone's dust removal has been improved.

In some embodiments, the cyclone unit at the most upstream is a first-stage cyclone unit, and the cyclone unit at the downstream of the first-stage cyclone unit is a second-stage cyclone unit, wherein the first-stage cyclone unit is provided with a first chamber and a first cyclone cone, the second-stage cyclone unit is provided with a second chamber and a second cyclone cone, and the second cyclone cone is one or a plurality of cyclone cones arranged in parallel.

Specifically, the number of the second cyclone cones is one, and the inlets of the second chambers are spaced and tangentially supply air; or, the second cyclone cones are multiple, and the second chamber is provided with only one inlet corresponding to each second cyclone cone.

Further, the fluid channel is located at one axial end of all the chambers, and all the chambers are provided with ash pouring ports at the other axial ends.

Optionally, the inner wall of the fluid channel is formed as a wind guide surface corresponding to the outlet of at least one cyclone unit.

Further optionally, the air guide surface is an arc surface or a conical surface.

In some specific embodiments, the first cyclone cone is a cylinder, the wall of the first cyclone cone is provided with air holes, and the free end of the first cyclone cone is provided with a cyclone dust pressing device for preventing dust from swirling up again.

Specifically, the gas-driven rotary ashing device comprises: the connecting part is coaxially connected to the free end of the first cyclone cone; and the ash pressing part is connected with the connecting part, and the size of the ash pressing part is larger than that of the first cyclone cone in the radial direction of the first-stage cyclone unit.

In some embodiments, the handheld cleaning appliance further comprises: the filter module is arranged at one axial end of the motor module and provided with a filter cavity and a filter element, the filter cavity is communicated with the motor cavity of the motor module, the cyclone units are multistage and are connected to the periphery of the motor module and the filter module along the axial extension direction of the motor module, and the cavity of the cyclone unit at the most downstream is communicated with the filter cavity.

In some embodiments, the chamber inside the first chamber outside the first cyclone cone constitutes a first cyclone chamber, the diameter of the first cyclone chamber is 60mm-100 mm; and the chamber at the inner side of the second cyclone cone forms a second cyclone chamber, and the maximum diameter of the second cyclone cone is 40-80 mm.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a hand-held cleaning device according to one embodiment of the present invention;

FIG. 2 is a side view of a hand-held cleaning appliance according to one embodiment of the present invention;

FIG. 3 is a cross-sectional view of a hand-held cleaning device according to an embodiment of the present invention;

FIG. 4 is an airflow profile of the hand-held cleaning appliance shown in FIG. 3;

FIG. 5 is a sectional view taken along A-A in FIG. 4;

FIG. 6 is a sectional view taken along line B-B of FIG. 4;

FIG. 7 is a perspective view of the cone body of FIG. 4;

FIG. 8 is a perspective view of the cone body of FIG. 4 after assembly with the front cylinder and the ash pouring cover;

FIG. 9 is an exploded view of a hand-held cleaning device in accordance with an embodiment of the present invention;

FIG. 10 is a partial view of a hand-held cleaning appliance according to one embodiment of the present invention;

FIG. 11 is a top sectional view of another embodiment of a handheld cleaning appliance;

FIG. 12 is a front sectional view of a hand-held cleaning appliance of another embodiment;

figure 13 is a side sectional view of a handheld cleaning appliance of another embodiment.

Reference numerals:

a cleaning device 100, an air inlet 01, an air outlet 02,

A cyclone separation module 1,

A cyclone unit 10, a first-stage cyclone unit 11, a second-stage cyclone unit 12,

Chamber 101, first chamber 1101, second chamber 1201,

The cyclone cone 102, the first cyclone cone 1102, the second cyclone cone 1202,

A dust pouring opening 103, a dust pouring cover 104,

The central line L10 of the cyclone separation module, the axis L11 of the first-stage cyclone unit, the axis L12 of the second-stage cyclone unit,

A first outlet 1106, a second outlet 1206,

Air holes 1107, an exhaust pipe 1207,

A first inlet 1108, a second inlet 1208,

A fluid channel 13, a first air guide surface 1301,

A dust pressing device 14, a connecting part 141, a dust pressing part 142, a dust falling hole 1421,

A motor module 2,

The motor cavity 21, the motor 22, the axis L20 of the motor module, the motor end cover 24, the fixing hook 241,

A handle 3,

A power supply module 4,

The air filter comprises a filter module 5, a filter cavity 51, a disassembly port 511, a filter element 52, a support 521, an air inlet 5211, a sealing ring 5212, a filter cylinder 522, a first end cover 523, a first concave 524, an axial line L50 of the filter module, a second air guide surface 502, an air inlet pipe 6, an axial line L60 of the air inlet pipe, a first air inlet pipe and a second air inlet pipe,

Air outlet filter 7, air outlet cover 71, cover peripheral ring 711, air passing hole 712, second end cover 713, second concave 714, filter plate 72, rotary locking structure 73, locking hook 731, slot 732, locking slot 733, and,

The cyclone dust collector comprises a main case 81, a partition 811, a middle through hole 8111, a thickening layer 8112, a front cylinder 82, a cover lock assembly 83, a cover lock hook 831, a cover lock clamping groove 832, a charging connector 84, a cone cylinder 85, a cyclone access box 851 and a flow dividing wall 852.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The structure of the hand-held cleaning device 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

According to the utility model discloses hand-held type cleaning device 100 includes: the cyclone separation device comprises a motor module 2, a power supply module 4 and a cyclone separation module 1, wherein the motor module 2 is used for generating flowing airflow, and the power supply module 4 is used for supplying power. The cyclonic separating module 1 comprises at least two stages of cyclone units 10 arranged in series, each stage of cyclone units 10 having a chamber 101 and a cyclone cone 102 disposed within the chamber 101. The hand-held cleaning device 100 further comprises a handle 3, the handle 3 being adapted to be gripped when in use.

All the chambers 101 are independent of each other and are arranged side by side, that is, there is no structure in which one chamber 101 is arranged inside the other chamber 101 (surrounding arrangement). The chambers 101 of the cyclone units 10 in two stages located upstream and downstream of the airflow are communicated through the fluid passage 13, that is, the cyclone units 10 in multiple stages are connected in series in the airflow flowing direction, and the chambers 101 of the cyclone units 10 in two adjacent stages in the airflow flowing direction are transited through the fluid passage 13.

Of course, the handheld cleaning appliance 100 has an inlet 01 and an outlet 02, the inlet 01 communicating with the chamber 101 of the most upstream cyclone unit 10 and the outlet 02 communicating with the chamber 101 of the most downstream cyclone unit 10. Driven by the motor module 2, a dust-laden air flow is sucked into the handheld cleaning appliance 100 from the air inlet 01. In the cyclone separation module 1, the airflow firstly flows into the most upstream cyclone unit 10, then flows to the most downstream cyclone unit 10 in sequence in a primary-secondary mode, and finally the cleaned airflow is blown out from the air outlet 02. Whether the airflow undergoes further filtering processes before entering the cyclone module 1 and after being blown out of the cyclone module 1 is not mentioned here for the time being.

The chambers 101 of the multi-stage cyclone unit 10 are arranged in parallel, and compared with the existing surrounding type cyclone separation device, the multi-stage cyclone separation device has the characteristics of simple structure and simple flow channel. The chambers 101 of the cyclone units 10 at all levels are independently opened, so that the complex structure is prevented from occupying too much effective space, the cyclone separation efficiency and effect can be improved to a certain degree, and the cleaning difficulty is greatly reduced because only the cyclone cones 102 exist in the inner space of each chamber 10 during ash dumping.

In some embodiments, the cyclonic separating module 1 comprises at least two stages of cyclone units 10, the most upstream cyclone unit 10 being a first stage cyclone unit 11 and downstream of the first stage cyclone unit 11 being a second stage cyclone unit 12. If the cyclone units 10 are more, the further downstream are third stage cyclone units and even fourth stage cyclone units, which are not listed here. In the embodiments of the present invention, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Here, the cyclone cone 102 in the cyclone unit 10 of each stage is not limited to one as shown in fig. 3, and may be a plurality as shown in fig. 9. When a plurality of cyclone cones 102 are provided in a certain stage of the cyclone unit 10, the arrangement of the plurality of cyclone cones 102, such as the inlet position thereof, can be designed in a variety of ways.

Specifically, as shown in fig. 3 to 6, the first stage cyclone unit 11 has a first chamber 1101 and a first cyclone cone 1102, and the second stage cyclone unit 12 has a second chamber 1201 and a second cyclone cone 1202. More specifically, the first chamber 1101 has a first inlet 1108 and a first outlet 1106, the dust-containing airflow enters from the first inlet 1108 and then flows rotationally under the guidance of the first cyclone cone 1102, so that the dust and impurities are thrown out of the airflow by centrifugal force, and then the separated airflow enters the fluid channel 13 from the first outlet 1106. The second chamber 1201 has a second inlet 1208 and a second outlet 1206, and the dust-containing airflow enters from the second inlet 1208 and flows rotationally under the guidance of the second cyclone cone 1202 to further separate dust and impurities, and the separated airflow is discharged from the second outlet 1206.

Optionally, the first-stage cyclone unit 11 has a single first cyclone cone 1102, so that the single-cone design can make the cyclone chamber in the first-stage cyclone unit 11 set to be larger, the suction resistance is smaller, and the external dusty airflow can enter a cyclone state as soon as possible.

In some embodiments, as shown in FIGS. 3-6, the second cyclone cone 1202 is one, which can further simplify the structure of the cleaning apparatus 100 for cleaning. Advantageously, the axis of the first cyclone cone 1102 (i.e., the axis L11 of the first stage cyclone unit 11) is parallel to the axis of the second cyclone cone 1202 (i.e., the axis L12 of the second stage cyclone unit 12), so that the design of the wind inlet and outlet directions is easier.

One or more inlets of the second chamber 1201, i.e., the second inlet 1208, may be provided. When the number of the second inlets 1208 is plural, a large amount of airflow can more easily flow into the second cyclone cone 1202, so that the power loss can be reduced, and the performance of the whole machine can be improved.

Specifically, as shown in fig. 5, when the second inlet 1208 is plural, each second inlet 1208 enters air in a tangential direction of the second stage cyclone unit 12, which also determines that the guiding direction of the second inlet 1208 is arranged in the tangential direction of the second stage cyclone unit 12. Of course, whether there are one or more second inlets 1208, the tangentially directed airflow is beneficial to bring the airflow entering the second cyclone cone 1202 into a high rotational speed state as soon as possible, reducing the consumption of airflow turbulence.

In other embodiments, as shown in FIG. 9, the second cyclone cones 1202 may be a plurality arranged in parallel. When the second cyclone cones 1202 are arranged in parallel, the airflow entering the second-stage cyclone unit 12 from the second inlet 1208 is divided into a plurality of second cyclone cones 1202 arranged in parallel, and after the airflow is divided into a plurality of streams, each stream of airflow can be finely rotated and separated from the respective second cyclone cone 1202, so that the dust removal efficiency of the handheld cleaning device 100 can be improved by matching with the first-stage cyclone unit 11.

Specifically, the plurality of second cyclone cones 1202 are arranged around the first stage cyclone unit 11, and the axes of the plurality of second cyclone cones 1202 are parallel to and equidistant from the axis L11 of the first stage cyclone unit 11. Thus, the multiple second cyclone cones 1202 can reduce the size of each second cyclone cone 1202 in the same airflow processing amount on the premise of ensuring the dust cyclone separation efficiency of the second-stage cyclone unit 12, so that the volume of the whole handheld cleaning device 100 is reduced. The equidistant design also ensures that each air flow which enters the second cyclone cones 1202 after being branched from the first-stage cyclone units 11 is uniformly branched as much as possible, the road distances are equal, and the second cyclone cones 1202 are used in a balanced manner as much as possible.

Further, when the number of the second cyclone cones 1202 is multiple, the second chamber 1201 is provided with only one inlet corresponding to each second cyclone cone 1202, that is, the number of the second inlets 1208 is multiple, and the multiple second inlets 1208 are provided in one-to-one correspondence with the multiple second cyclone cones 1202, so as to avoid that the number of the second inlets 1208 of each second cyclone cone 1202 is too much, which results in too many directions during flow splitting. This not only causes the number of inlet channels to be excessive, and the flow dividing structure to be complicated, but also causes turbulence in the second cyclone cone 1202 due to the difference in the air intake direction.

In some embodiments, the fluid passage 13 is located at one axial end of all the chambers 101, the fluid passage 13 is not located in the chambers 101 of the cyclone units 10, and the airflow in the cyclone unit 10 of the upper stage is exhausted and then guided from the fluid passage 13 to the cyclone unit 10 of the lower stage. The fluid passages 13 are provided at one axial end of all the chambers 101, so as to facilitate concentration of the positions of the fluid passages 13 and reduction of the lengths of the fluid passages 13 between the cyclone units 10 of the adjacent stages. Thus, the channels without filtering function are shortened, which is beneficial to reducing unnecessary energy consumption.

Specifically, all the chambers 101 are provided with the dust pouring port 103 at the other end in the axial direction. That is, when the handheld cleaning device 100 is tilted in the same direction, it is equivalent to tilt all the dust in the chamber 101 in the same direction, so that the workload of the user in cleaning can be greatly reduced. Even if a certain amount of wound thread such as hair, fiber, etc. is held by hand in the chamber 101, the user only needs to hold the wound thread outward in one direction when all the dust pouring ports 103 are opened.

Alternatively, as shown in fig. 3 and 4, all the dust pouring openings 103 are arranged in a flush manner, and when the dust pouring openings 103 are placed on the table top downwards, the cleaning device 100 can be smoothly placed on the table top through all the flush dust pouring openings 103, so that the cleaning device can be kept standing for a period of time when all the dust pouring openings 103 are opened, or dust can be shaken out by slapping and knocking the cleaning device 100, which is beneficial to further reducing the workload of dust pouring cleaning for users.

Specifically, as shown in fig. 1 to 3, the cyclone module 1 includes an ash dumping cover 104 for opening and closing the ash dumping port 103, and the chamber 101 can be opened only by opening the ash dumping cover 104. With the arrangement, the whole cavity 101 is not required to be opened, ash removal is convenient, and the problem of difficult sealing caused by integral disassembly and assembly is avoided.

More specifically, the dust pouring covers 104 of all the cyclone units 10 are integrated covers, that is, the handheld cleaning device 100 can open all the chambers 101 for cleaning and maintenance by only opening one dust pouring cover 104.

Furthermore, all the ash pouring openings 103 are arranged in a flush mode, and the ash pouring cover 104 is a flat plate cover, so that the arrangement is convenient to seal, the structure can be simplified, and the appearance is neat and attractive.

In an alternative example, as shown in FIG. 1, one side of the ash dumping cover 104 is pivotally attached to one side of the cyclone module 1 and the other side of the ash dumping cover 104 is locked to the other side of the cyclone module 1 by the cover locking assembly 83. The cover locking assembly 83 includes a cover locking hook 831 and a cover locking slot 832, the cover locking hook 831 is disposed outside the cyclone separation module 1, the cover locking slot 832 is disposed on the dust pouring cover 104, and the cover locking hook 831 is locked on the cover locking slot 832 to lock the dust pouring cover 104. When the cover lock hook 831 is unlocked, the dust pouring cover 104 can automatically rotate under the action of gravity, and in some structures, a torsion spring (not shown) can be arranged at the rotating shaft of the dust pouring cover 104, so that the dust pouring cover 104 can automatically bounce open under the action of the torsion spring when the cover lock hook 831 is unlocked, and one-key dust pouring can be realized.

In some embodiments, the inner wall of the fluid channel 13 is formed as a wind guide surface corresponding to the outlet of at least one cyclone unit 10, so that the airflow blown out from the cyclone unit 10 can be buffered and guided by the wind guide surface when directly impacting on the wind guide surface, the flow resistance of the airflow can be reduced, and the noise and the power absorption loss can be reduced. The cleaning device of the present embodiment is also provided with a wind guiding surface at other positions, and for the sake of convenience of distinction, the wind guiding surface on the inner wall of the fluid channel 13 for guiding the outlet of the cyclone unit 10 is hereinafter referred to as a first wind guiding surface 1301.

Alternatively, the first wind guiding surface 1301 may be an arc surface or a conical surface, or may be a bent surface formed by multiple planes, which is not limited herein. The specific shape of the first air guiding surface 1301, which is mentioned later, may be further defined according to the setting relationship of other structures, and is not described herein again.

In some embodiments, as shown in FIG. 4, the chamber 101 inside the first chamber 1101 outside the first cyclone cone 1102 constitutes a first cyclone chamber having a diameter of 60mm to 100 mm. Here, the first cyclone chamber refers to a space for cyclone separation within the first chamber 1101, and the diameter of the first cyclone chamber is substantially equal to the diameter of the first chamber 1101. Since the cyclone units 10 are arranged in series side by side, limiting the diameter of the first chamber 1101 in this way enables the handheld cleaning appliance 100 to be made small and light whilst achieving efficient separation performance of the first stage cyclone unit 11.

Specifically, as shown in fig. 6, the first inlet 1108 of the first chamber 1101 is located on the peripheral wall of the first chamber 1101, the first inlet 1108 enters the first chamber 1101 tangentially, and the airflow rotates at a high speed under the guidance of the inner wall of the first chamber 1101 and the first cyclone cone 1102.

More specifically, as shown in fig. 4-6, the first cyclone cone 1102 is formed as a cylinder, the wall of the first cyclone cone 1102 has air holes 1107, and the first inlet 1108 feeds air into the chamber 101 located outside the first cyclone cone 1102 in the first chamber 1101. The gas after impurity separation enters the first cyclone cone 1102 through the ventilation holes 1107, and the side of the first cyclone cone 1102 facing the fluid channel 13 is opened to form a first outlet 1106, that is, the gas flow enters and exits in the first-stage cyclone unit 11 in the radial direction and in the axial direction.

In some embodiments, as shown in FIG. 3, the free end of the first cyclone cone 1102 is provided with a cyclone dust-pressing device 14 for preventing dust from being secondarily swirled up. Therefore, the cyclone dust pressing device 14 can prevent dust on the dust bottom of the first-stage cyclone unit 11 from being re-rotated, so that the re-rotation is prevented from causing the reduction of the separation efficiency of the first-stage cyclone unit 11.

As shown in fig. 10, the cyclonic dust pressing apparatus 14 includes a connecting portion 141 and a dust pressing portion 142, the connecting portion 141 is coaxially connected to the free end of the first cyclone cone 1102, the dust pressing portion 142 is connected to the connecting portion 141, and the size of the dust pressing portion 142 is larger than that of the first cyclone cone 1102 in the radial direction of the first-stage cyclone unit 11. Therefore, the cyclone airflow can be prevented from pressing air towards the dust pouring opening 103, and dust is prevented from being swirled up.

Specifically, as shown in fig. 10 and 3, the dust pressing portion 142 is provided with a plurality of dust falling holes 1421, and the dust falling holes 1421 are spaced around the first cyclone cone 1102. It can be understood that, since the size of the dust pressing portion 142 is larger than that of the first cyclone cone 1102, the dust falling holes 1421 are formed in the dust pressing portion 142 and surround the first cyclone cone 1102, and the dust falling holes 1421 ensure that dust is not easily deposited on the dust pressing portion 142, thereby reducing the possibility that dust on the dust pressing portion 142 is secondarily swirled up. Advantageously, the dust pressing portion 142 is spaced from the inner wall of the first chamber 1101, which ensures that the garbage and foreign materials can smoothly enter the first chamber 1101.

It should be additionally noted that the dust falling holes 1421 are only used to avoid the deposition of dust on the dust pressing portion 142, and the specific shape and number of the dust falling holes 1421 are not limited herein.

Alternatively, as shown in fig. 10, one end of the first cyclone cone 1102 facing the dust pouring port 103 is opened, and the connection portion 141 is formed in a cylindrical shape and is in butt-joint connection with the end of the first cyclone cone 1102, so that dust can fall along the first cyclone cone 1102 to the dust pouring port 103 when cyclone separation occurs inside the first cyclone cone 1102. Of course, the structure of the dust pressing device 14 according to the embodiment of the present invention is not limited thereto, and as shown in fig. 3, the dust pressing device 14 is integrally formed at the end of the first cyclone cone 1102, wherein one end of the first cyclone cone 1102 facing the dust pouring port 103 may be a closed end.

In some embodiments, as shown in fig. 4, the chamber 101 inside the second cyclone cone 1202 forms a second cyclone chamber, the second inlet 1208 enters air towards the inside of the second cyclone cone 1202, and one end of the second cyclone cone 1202 facing the dust pouring port 103 is through. Namely, in the second-stage cyclone unit 12, the inside of the second cyclone cone 1202 is the main place for cyclone separation, and the cyclone strength in the space outside the second cyclone cone 1202 is greatly reduced, and the separation effect is negligible.

Specifically, the maximum diameter of the second cyclone cone 1202 is 40mm to 80 mm. This is also the optimum size range for achieving efficient separation of the second stage cyclone unit 12 in as small a size range as possible.

Specifically, as shown in fig. 4, the second stage cyclone unit 12 includes an exhaust pipe 1207, and the exhaust pipe 1207 is provided on the side of the second cyclone cone 1202 adjacent to the fluid passage 13. One end of the exhaust pipe 1207 coaxially protrudes into the second cyclone cone 1202, and the other end of the exhaust pipe 1207 forms a second outlet 1206. As shown in fig. 5, the airflow entering tangentially from the second inlet 1208 flows toward the inside of the second cyclone cone 1202 under the guidance of the exhaust pipe 1207 and rotates under the guidance of the second cyclone cone 1202. Under the high-speed rotation of the airflow, the separated impurities can be collected towards one end of the ash pouring port 103 along the second cyclone cone 1202, and the separated gas is discharged along the gas discharge pipe 1207, namely, the airflow also enters in the second-stage cyclone unit 12 in a radial direction and exits in an axial direction.

More specifically, the second cyclone cone 1202 is formed with a tapered pipe having a gradually decreasing diameter at least toward the dust discharge opening 103 thereof, so that after the airflow enters the second cyclone cone 1202, the airflow is discharged from the side away from the dust discharge opening 103, and the separated dust is discharged from the end of the second cyclone cone 1202 toward the dust discharge opening 103. The design of the tapered tube can prevent the airflow from blowing to the outer side of the second cyclone cone 1202 to spin up dust as much as possible.

It will be appreciated that in the handheld cleaning appliance 100, the motor module 2 and the power module 4 are essentially the heaviest two parts. In the existing handheld dust collector, a motor is arranged on the front side of a handle, a power supply is positioned on the front side or the upper and lower sides of the handle, the gravity center of the whole dust collector is usually positioned on the front side of the handle or the front end of the handle, and the gravity center of the whole dust collector is difficult to be positioned at the middle position (namely a holding position) of the handle. Therefore, when the dust collector is held by hands, because the gravity center of the whole dust collector is close to the front to generate overlarge moment, if the hand is required to resist the moment, the hand is required to have larger force to hold the handle and control the suction direction, and the dust collector is difficult to take up and has poor hand feeling.

To solve this problem, in some embodiments, as shown in fig. 2, the motor module 2 and the power module 4 are connected to both ends of the handle 3 in the length direction. This allows the weight of the motor module 2 and the power module 4 to be rearranged on the handle 3. Under the mutual balance of the motor module 2 and the power module 4, the whole gravity center can move backwards relative to the prior art, so that the gravity center of the whole machine is positioned on the handle 3, or is positioned right above or below the handle 3, and the horizontal distance between the gravity center of the whole machine and a handheld position is very short. After the gravity center of the whole machine moves backwards, the hand-held cleaning equipment 100 has more comfortable hand feeling and saves more labor when in use.

It should be noted that the length direction of the handle 3 refers to the direction in which the four fingers of a person are arranged when the person normally holds the handle 3. In the figure, the handle 3 is arranged along the front-back direction, the front end of the handle 3 is connected with the motor module 2, the rear end of the handle 3 is connected with the power module 4, and when people normally hold the handle 3, the motor module 2 is in front and the power module 4 is behind by taking the direction facing the people as the reference. The width direction mentioned hereinafter corresponds to the left-right direction in the drawing, and corresponds to the left-right direction of the human body when the handle 3 is normally held by a human hand.

In some embodiments, the cyclonic separating module 1 is attached to the outer circumference of the motor module 2, i.e. the cyclonic separating module 1 is not provided at one axial end of the motor module 2. Therefore, the problem that the size of the whole machine in the axial direction of the motor module 2 is too long after the cyclone separation module 1 is arranged at one axial end of the motor module 2 can be avoided. And when motor module 2 and power module 4 are connected at the both ends of handle 3, whirlwind separation module 1 is connected on motor module 2's periphery can avoid whole machine too unbalance in the width direction of handle 3 focus.

Specifically, as shown in fig. 1 and 2, the cyclone separation module 1, the handle 3, and the power module 4 are distributed along the circumferential direction of the motor module 2, and are all connected to the motor module 2. With this arrangement, the axis L20 of the motor module 2 is arranged substantially along the width direction of the handle 3, so that the length of the entire machine can be made small, and the arrangement of the air flow between the motor module 2 and the cyclone module 1 is also made easy.

More specifically, as shown in fig. 2, the ends of the handle 3 and the power module 4, which are far away from the motor module 2, are close to each other, so that a holding space is defined between the handle 3, the power module 4 and the motor module 2. The extending direction of the power module 4 is substantially the same as the length direction of the handle 3, taking fig. 2 as an example, the handle 3 is arranged along the front-back direction, the power module 4 is arranged along the front-back direction, at least one of the two ends is bent, and the two ends are close to each other and connected. After a closed holding space is formed, on one hand, a user is not easy to take off the hand when using the handle, on the other hand, the holding length of the handle 3 is increased, and the use is more convenient.

Specifically, power module 2 is connected at the lower extreme of handle 3, and is located motor module 2's below, is favorable to moving power module 2's focus to the handle below like this, also is favorable to moving the complete machine focus further to the position that handle 3 was held.

In some embodiments, as shown in fig. 1, the primary and

secondary cyclone units

11 and 12 are arranged along the axis L20 of the motor module 2. Therefore, the axial length and space arrangement of the motor modules 2 can be fully utilized as far as possible, and the overall layout is more compact.

Specifically, as shown in fig. 1, the axis L11 of the primary cyclone unit 11 and the axis L12 of the secondary cyclone unit 12 are respectively disposed perpendicular to the axis L20 of the motor module 2. Therefore, the axis of the cyclone direction in each cyclone unit 10 is perpendicular to the rotation axis of the motor 22 when air is sucked, two vibration sources can be mutually weakened after being superposed on the whole machine, and finally the vibration and noise of the whole machine can be controlled within a proper range.

More specifically, the axis L11 of the primary cyclone unit 11 and the axis L12 of the secondary cyclone unit 12 are arranged in parallel, and the cyclone module 1 has a centre line L10, the centre line L10 being parallel to L11, L12, and the centre line L10 being perpendicular to the axis L20 of the motor module 2.

In addition, because the handle 3 is connected to the periphery of the motor module 2, the center line L10 of the cyclone separation module 1 can be located on the symmetrical plane of the handle 3 in the width direction as much as possible, and the first-stage cyclone unit 11 and the second-stage cyclone unit 12 are located on two sides of the symmetrical plane of the handle 3 in the width direction, which is beneficial to balancing the gravity center position of the whole machine.

Further, as shown in fig. 3, the ends of the first chamber 1101 and the second chamber 1201 that are away from the axis L20 of the motor module 2 respectively constitute dust pouring ports 103. The setting of falling grey mouth 103 can not influence the air current circulation between motor module 2 and the whirlwind separation module 1 like this, and whirlwind main place in the whirlwind separation module 1 is far away from falling grey mouth 103, can avoid turning on the ash, also can avoid falling grey mouth 103 air leakage influence whirlwind negative pressure.

In some embodiments, as shown in fig. 3, the fluid passage 13 is located on the side of the first stage cyclone unit 11 facing the axis L20 of the motor module 2. Therefore, the situation that the cyclone separation module 1 is too thick and too bulky due to the arrangement of the fluid channel 13 is avoided, and the air outlet and air inlet positions of the cyclone units 10 are conveniently arranged.

Specifically, as shown in fig. 3 and 10, the first outlet 1106 of the first-stage cyclone unit 11 is disposed toward the outer wall surface of the motor module 2, and at least a portion of the outer wall surface of the motor module 2 forms a first wind guide surface 1301. The outer wall surface of the motor module 2 here is also a part of the inner wall surface of the fluid channel 13. The setting of first wind-guiding face 1301 is the utility model discloses well perfect adaptation result of optimizing complete machine layout mode and optimizing fluid channel 13 water conservancy diversion mode, the outer wall profile of motor module 2 is influenced its outer wall face by motor 22 and is the face of cylinder basically on the one hand, the waste in space between motor module 2 and the whirlwind separation module 1 is avoided in the utilization of this face, on the other hand this face of cylinder can reach the effect of air current buffering just.

In the embodiment of the present invention, the first air guiding surface 1301 may be a cylindrical surface as a whole, or may be an air guiding structure composed of a plurality of small convex hulls. Advantageously, the center of the first wind guiding surface 1301 is closer to the first outlet 1106 than to the peripheral or peripheral part region, and the center of the first wind guiding surface 1301 and the peripheral or peripheral part region are in a straight line transition or a curve transition. In this way, the first air guiding surface 1301 can perform a better air guiding function, so that the air flow can flow to the second inlet 1208 more rapidly after flowing out of the first outlet 1106.

In a specific example, the axis L11 of the first stage cyclone unit 11 is perpendicular to the axis L20 of the motor module 2, and the first wind guiding surface 1301 is a cylindrical surface with an arbitrary distance from the axis L20 of the motor module 2. Therefore, the space between the motor module 2 and the cyclone separation module 1 can be fully utilized, and the processing difficulty is very low.

In some embodiments, as shown in fig. 3 and 4, the handheld cleaning appliance 100 further comprises: the filter module 5, the filter module 5 has filter chamber 51 and filter core 52 set in filter chamber 51, the chamber 101 of the most downstream cyclone unit 10 communicates with filter chamber 51. That is, the air flow discharged from the cyclone module 1 enters the filter chamber 51 and is further filtered by the filter element 52, and the arrangement of the filter module 5 adds a filtering process to the hand-held cleaning device 100, thereby improving the cleaning effect.

In the example of figure 4, the first stage cyclone unit 11 is located furthest upstream of the cyclonic separating module 1 and the second stage cyclone unit 12 is located furthest downstream of the cyclonic separating module 1, the airflow leaving the second stage cyclone unit 12 under the action of the motor module 2 passing in turn to the filter module 5.

Specifically, as shown in fig. 3 and 12, the filter module 5 is disposed at one axial end of the motor module 2, the filter cavity 51 is communicated with the motor cavity 21 of the motor module 2, and the handheld cleaning device 100 blows air out from one side of the motor cavity 21, that is, the air outlet 02 is disposed on the motor module 2.

Further, one end of the handle 3 is connected to the connection part of the power module 4 and the filter module 5, and the other end of the handle 3 is connected to the power module 4, so that the cleaning device 100 provided with the filter module 5 can be symmetrically arranged in the width direction of the handle 3.

Further, as shown in fig. 4, the cyclone units 10 of the plurality of stages are connected to the outer circumferences of the motor module 2 and the filter module 5 in the direction in which the axis L20 of the motor module 2 extends, and the chamber 101 of the cyclone unit 10 at the most downstream side communicates with the filter chamber 51. That is, the airflow discharged from the cyclone module 1 enters the filter chamber 51, is filtered by the filter element 52, enters the motor chamber 21, and is discharged from the motor chamber 21 out of the hand-held cleaning device 100.

Specifically, as shown in fig. 3 and 12, the first stage cyclone unit 11 is disposed opposite to the motor module 2, and the second stage cyclone unit 12 is disposed opposite to the filter module 5. Therefore, the arrangement positions of all the parts are utilized, the airflow circulation channel is designed, the airflow circulation path is simplified to the greatest extent, and the air suction power consumption is reduced.

Alternatively, the second outlet 1206 of the second-stage cyclone unit 12 is disposed toward the outer wall surface of the filter module 5, and at least a part of the outer wall surface of the filter module 5 forms the second wind guiding surface 502.

The second air guide surface 502 is a perfect combination product of the air outlet mode of the cyclone separation module 1 and the shape of the filter element 52, on one hand, the outer wall surface of the shape selected by the filter element 52 is suitable for guiding air, and an air guide structure is not required to be additionally arranged, so that the arrangement of the second-stage cyclone unit 12 and the filter module 5 is more compact, and the small and exquisite design of the whole machine is facilitated; on the other hand, the outer wall surface of the filter element 52 can just achieve the function of air flow buffering, so that the air flow can be uniformly distributed around the filter element 52, the impact force of the center of the air flow on the filter element 52 is weakened, and the integral filtering service condition of the filter element 52 is more balanced after the air flow is uniformly distributed.

In some embodiments, as shown in fig. 4, an air outlet 02 is formed at one axial end of the motor cavity 21, and the air outlet filter 7 is detachably disposed at the air outlet 02. The filter module 5 is arranged at the other axial end of the motor cavity 21, the filter cavity 51 is provided with a disassembly port 511 at one side far away from the motor cavity 21, and the filter element 52 is arranged in the filter cavity 51 from the disassembly port 511.

By the design, the air outlet filter element 7 and the filter element 52 can be disassembled and assembled along the axial direction of the motor module 20, and the air outlet filter element 7 and the filter element 52 are just positioned at the two opposite sides of the cleaning device 100 and do not interfere with each other, so that the disassembly and replacement operation is very convenient.

When the handle 3 is connected to the motor module 2 and the axis L20 of the motor module 2 is arranged along the width direction of the handle 3, as described above, the width direction of the handle 3 is consistent with the left and right directions of the human body when the handle 3 is normally held by the human body. Taking the cleaning apparatus 100 shown in fig. 3 as an example, assuming that a person holds the handle 3 with the right hand, the air outlet 02 is located on the right side of the cleaning apparatus 100, and the removal opening 511 is located on the left side of the cleaning apparatus 100. The air outlet 02 discharges air to the right side, so that the cleaning equipment 100 can blow air in a direction farther away from a human body, not only can the direct blowing of the human body be avoided, but also the downward or forward blowing of the air to spin up dust can be avoided.

Further, the air outlet 02 and the dismounting opening 511 are coaxially arranged, so that the axial line L50 of the filter module 5 and the axial line L20 of the motor module 2 are coaxially arranged with the air outlet 02, wind power is uniformly distributed in the circumferential direction, and vibration caused by unbalance is reduced.

In some embodiments, as shown in fig. 4, the air outlet filter 7 is formed in a disk shape, and the air outlet filter 7 is connected to the inner wall of the air outlet 02 by a rotary locking structure 73. That is to say, the air outlet filter 7 can be installed on the motor module 2 by twisting the air outlet filter 7, and can be detached from the air outlet filter 7, so that the disassembly and assembly operation is very simple.

Specifically, the rotary lock structure 73 includes: the air outlet filter 7 comprises a plurality of locking hooks 731 and an insertion slot 732, the locking hooks 731 are formed on the outer circumferential wall of the air outlet filter 7, the locking hooks 731 are arranged at intervals along the circumferential direction of the air outlet filter 7, the extending directions of the ends of the locking hooks 731 are the same in the circumferential direction of the air outlet filter 7, as shown in the figure, when facing the air outlet 02, the ends of the locking hooks 731 extend in a clockwise bending manner, and each locking hook 731 forms an L shape.

The slots 732 are formed on the inner peripheral wall of the air outlet 02, the slots 732 are arranged at intervals in the circumferential direction of the air outlet 02, one end of each slot 732, which is far away from the motor cavity 21, penetrates through the slot 732, and a locking slot 733, which is aligned with the extending direction of the end of the locking hook 731, is formed in each of the slots 732 at one end facing the motor cavity 21.

Thus, taking the structure shown in the figure as an example, when the air outlet filter 7 needs to be installed, the plurality of locking hooks 731 respectively face the plurality of slots 732, then the air outlet filter 7 is inserted into the air outlet 02 to a certain extent, and then the air outlet filter 7 is rotated clockwise, so that the plurality of locking hooks 731 can be screwed into the locking slots 733, and the air outlet filter 7 is fastened on the motor module 2. At this time, the outlet air impacts on the outlet air filter 7, so that the outlet air filter 7 cannot fall off. On the contrary, when the air outlet filter 7 needs to be detached, the air outlet filter 7 rotates counterclockwise to a certain extent, and then the air outlet filter 7 is pulled outward, so that the plurality of locking hooks 731 are directly pulled out of the plurality of slots 732, and the air outlet filter 7 is detached from the motor module 2.

Of course, the utility model discloses the dismouting mode of air-out filter 7 of embodiment also can not be restricted to rotary locking structure 73, can also directly pass through the fastener and connect, perhaps sets up the external screw thread in the periphery of air-out lid 71, and set up on the internal perisporium of air outlet 02 with external screw thread fit's internal thread.

In some embodiments, as shown, the air outlet filter 7 includes: air outlet cover 71 and filter 72, air outlet cover 71 cooperates on air outlet 02, and the periphery of air outlet cover 71 is equipped with the lid week ring 711 that extends towards motor chamber 21, is equipped with air passing hole 712 on the air outlet cover 71. The shape of the filter plate 72 is identical to that of the air outlet cover 71, the filter plate 72 is fitted on the air outlet cover 71, and at least a part of the filter plate 72 is enclosed in the cover peripheral ring 711. Like this, the shape of filter 72 is unanimous basically with the shape of air outlet 02, and not only the coverage area is big, it is small to occupy, can guarantee moreover that all air currents homoenergetic pass through filter 72 and cross the wind, guarantees that the air-out air current can both filter. In addition, the filter plate 72 can be positioned and fixed by the shape of the air outlet cover 71, so that the filter plate 72 is very convenient to disassemble, assemble and replace.

Specifically, the filter plate 72 is located on a side of the air outlet cover 71 facing the motor 22, and the filter plate 72 is pressed more tightly against the air outlet cover 71 during air outlet. The filter plate 72 is flat and parallel to the end surface of the motor 22, so that the air pressure at various positions on the filter plate 72 can be kept substantially uniform.

Optionally, the filter plate 72 is a piece of HEPA, but the filter plate 72 may also be other filter cotton or composite filter layers, etc., without limitation.

Specifically, as shown in the figure, the air outlet cover 71 further includes a second end cover 713, an inner peripheral edge of the cover peripheral ring 711 is connected to the second end cover 713, and a second concave portion 714 is formed between an outer peripheral edge of the second end cover 713 and the cover peripheral ring 711, so that a user can conveniently grip the second concave portion 714 with a finger to screw the second end cover 713. More specifically, a plurality of air holes 712 are formed on the cover circumferential ring 711 around the second end cover 713.

In some embodiments, as shown in fig. 3, cartridge 52 includes: a bracket 521 and a filter cartridge 522, wherein the bracket 521 is in a cylindrical shape with one side opening towards the motor cavity 21, and the bracket 521 is provided with an air inlet 5211. The filter cartridge 522 is sleeved on the bracket 521, and the part of the filter cavity 51, which is positioned outside the filter cartridge 522, is communicated with the chamber 101. The support 521 is used for supporting the filter cartridge 522, so that the cylindrical filter cartridge 522 has a large filter area, and the filter cartridge 522 is not easily damaged by wind impact during wind passing. After entering the filter chamber 51, the airflow filtered by the cyclone separation module 1 is distributed around the filter element 52, and after passing through the filter cartridge 522, the airflow enters the inside of the bracket 521 through the air inlet 5211 on the bracket 521 and then flows into the motor chamber 21.

Optionally, the filter cartridge 522 is a sponge member, which is not only low in cost and good in air permeability, but also soft in texture, and is conveniently sleeved on the bracket 521. Of course, the filter cartridge 522 may be made of other materials, such as fibrous layers, etc.

Specifically, one end of the bracket 521, which is far away from the motor cavity 21, is provided with a sealing ring 5212, and the sealing ring 5212 is in interference fit with the inner wall of the dismounting hole 511. That is, the filter element 52 is interference-fitted to the inner wall of the removal opening 511 by the seal ring 5212, so that not only is the sealability of the removal opening 511 achieved, but also the manner of attaching and detaching the filter element 52 is very simple.

Of course, the filter element 52 of the embodiment of the present invention can be assembled and disassembled without being limited to interference fit, and can also be directly connected by a fastener, or an external thread is provided on the periphery of the sealing ring 5212, and an internal thread matched with the external thread is provided on the inner peripheral wall of the disassembling opening 511.

Further, as shown in fig. 3, the filter element 52 includes: the first end cover 523, the first end cover 523 is fitted to an end of the bracket 521 far away from the motor cavity 21, and a first concave 524 is formed between the first end cover 523 and the sealing ring 5212. It is convenient for a user to click on the first concave portion 524 to pull the first end cap 523.

In some embodiments, as shown in fig. 4 and 3, the cleaning device 100 has a main housing 81, a partition 811 is disposed in the main housing 81, an air outlet 02 and a removal opening 511 are disposed on opposite sides of the partition 811 on the main housing 81, a central opening 8111 is disposed on the partition 811, a motor cavity 21 is disposed on a side of the partition 811 facing the air outlet 02, a filter cavity 51 is disposed on a side of the partition 811 facing the removal opening 511 in the main housing 81, and the filter element 52 is connected to the partition 811 in a stop manner. That is, the main housing 81 forms the housing of the motor module 2 and the filter module 5, and the two housings are formed by the main housing 81, so that the connection between the motor module 2 and the filter module 5 is compact, the sealing performance is good, and the installation and the positioning are convenient.

Specifically, as shown in fig. 3, the motor module 2 includes a motor end cover 24, the motor end cover 24 is located in the motor cavity 21, the motor end cover 24 is located at one axial end of the motor 22, and a projection of the motor end cover 24 on a plane where the air outlet 02 is located in a contour of the air outlet 02. The motor end cover 24 can be installed into the motor cavity 21 from the air outlet 02, the motor end cover 24 is a buffering part between the motor 22 and the main chassis 81, and the positioning and fixing of the motor 22 can be realized by fixing the motor end cover 24.

More specifically, as shown in fig. 3, the end of the motor end cover 24 facing the removal opening 511 is provided with a fixing hook 241 provided along the through-center opening 8111, and the fixing hook 241 is hung on the partition 811. Thus, the motor end cover 24 and the partition plate 811 are positioned, and the motor end cover 24 is not easily detached from the partition plate 811 when being impacted by wind.

Further, the fixing hook 241 has a circular ring shape, so that the whole fixing hook 241 is similar to the neck of a vase, and the inner side of the fixing hook 241 forms a cylindrical surface, which is beneficial to reducing noise when air flows through the fixing hook 241.

Alternatively, as shown in the drawing, the contact surface of the spacer 811 with the fixing hook 241 is a tapered surface gradually decreasing in diameter toward the detachment port 511. With the arrangement, when the motor end cover 24 is installed, the fixing hook 241 or the partition plate 811 can be slowly deformed under the extrusion and guide of the conical surface after the fixing hook 241 meets the conical surface, and finally the end part of the fixing hook 241 is extruded to the filter cavity 51 to restore the shape, so that the conical surface can avoid the situation that the fixing hook 241 is blocked during installation, and the fixing hook is difficult to fall off from the partition plate 811 after being blocked.

Further alternatively, the shape of the section where the fixing hook 241 is engaged with the tapered surface is the same as the shape of the tapered surface, so that the fixing hook 241 is engaged with the tapered surface to form a tapered surface, which can be well positioned, and the inner cylindrical surface of the fixing hook 241 is also the tapered surface to better guide the airflow.

Specifically, as shown in fig. 4, a portion of the partition 811 surrounding the motor 22 is provided with a thickening layer 8112 to improve support rigidity for the motor 22.

In some embodiments, as shown in fig. 4 and 3, the cleaning apparatus 100 includes: a front cylinder 82 and a cone cylinder 85. The conical cylinder 85 is attached to the main chassis 81 to define the fluid passage 13 with the main chassis 81. The front cylinder 82 is covered on the conical cylinder 85 and connected with the main chassis 81, and the front cylinder 82 has a partition inside to define a first chamber 1101 and a second chamber 1201 by matching with the conical cylinder 85. The front cylinder 82 has an open end far away from the main chassis 81 to form a dust pouring opening 103, a dust pouring cover 104 is openably fitted to the end of the front cylinder 82, and a cover locking hook 831 of the cover locking assembly 83 is provided on the front cylinder 82.

Specifically, as shown in fig. 7, the cone 85 includes a cyclone inlet/outlet connection box 851, the cyclone inlet/outlet connection box 851 is a flat box, and the maximum surface profile of the cyclone inlet/outlet connection box 851 is a race track shape. One of the largest surfaces of the cyclone in and out connection box 851 is opened to connect with the main chassis 81, and the other surface is integrally connected with a first cyclone cone 1102 and a second cyclone cone 1202.

Further, as shown in fig. 7 and 5, the cone cylinder 85 further includes a dividing wall 852 disposed on the cyclone in-out connection box 851, a portion of the dividing wall 852 forms a circular arc inner wall coaxial with the second cyclone cone 1202, and another portion of the dividing wall cooperates with the cyclone in-out connection box 851 to form a tangential guide channel, and an end of the tangential guide channel forms a second inlet 1208.

Alternatively, as shown in fig. 4, the exhaust pipe 1207 is integrally formed on the main chassis 81.

More specifically, as shown in fig. 8, the front cylinder 82 is formed as a long cylinder conforming to the shape of the cyclone inlet/outlet box 851, and after the cone cylinder 85 is fitted into the front cylinder 82, a part of the cyclone inlet/outlet box 851 is exposed from the front cylinder 82, so that the housing is formed as a double-layer structure at the fluid passage 13.

In some embodiments, as shown in fig. 1-4, the cleaning apparatus 100 further comprises an air inlet duct 6 connected to the cyclonic separation module 1. The free end of the air inlet duct 6 forms an air inlet opening 01 for drawing air from the cleaning appliance 100 through the air inlet duct 6 towards the first chamber 1101.

Wherein, the cyclone separation module 1 and the motor module 2 are both positioned above the air inlet pipe 6. The air inlet pipe 6 is positioned below the cyclone module 1, and is easier to touch ground and suck objects. And the motor module 2 is positioned above the air inlet pipe 6, so that the gravity center of the whole machine can be reasonably adjusted to be convenient to take.

Specifically, as shown in fig. 2, the air inlet pipe 6 is disposed substantially in parallel with the power module 4, the cyclone module 1 is located above the air inlet pipe 6, and the handle 3 is located above the power module 4. The arrangement is convenient for air suction and downward adjustment of the gravity center. And the cleaning apparatus 100 is easily and smoothly placed on the floor, and is very convenient to use.

Specifically, as shown in fig. 2, the axis L60 of the air inlet duct 6 is parallel to the axis L10 of the cyclone module 1, and the axis L60 of the air inlet duct 6 is perpendicular to the axis L20 of the motor module 2. This arrangement makes the cleaning apparatus 100 provided with the air inlet duct 6 more compact, and contributes to a compact design.

Further, the air inlet duct 6 is located at the front side of the power module 4, and the axis L60 of the air inlet duct 6 passes through the power module 4, so that the problem that the heavy power module 4 is too high to be stably placed through the air inlet duct 6 can be avoided.

Optionally, as shown in fig. 1, the cleaning device 100 further has a charging connector 84, and the charging connector 84 is provided on the air inlet duct 6 so as to charge the power module 4. The charging connector 84 is located on a side of the air inlet duct 6 facing the air inlet 01.

Advantageously, as shown in fig. 2, the highest point of the closed handle 3 protrudes above the upper end of the motor module 2, i.e. the highest point of the handle 3 is higher than the highest point of the motor module 2. Set up like this, enable the handheld position on the handle and can be located motor module 2's top as far as possible, rather than can only be in motor module 2's rear side, be favorable to advancing handheld position like this, make the user adjust actual handheld position according to feeling, be favorable to further reducing moment.

The operation of the cleaning device 100 is described below with reference to one embodiment of fig. 1-10.

The air flow carrying the garbage is sucked into the air inlet pipe 6 from the air inlet 01 and then enters the first-stage cyclone unit 11, the garbage and large-particle impurities are thrown out under the action of centrifugal force and gravity through the guiding high-speed rotation of the first cyclone cone 1102, the separated garbage and large-particle impurities are left in the first chamber 1101, and finally the garbage is deposited at the bottom of the first chamber 1101. Part of the minute dust passes through the airing holes 1107, is guided to the second cyclone cone 1202 after ascending with the air current into the fluid passage 13, and most of the dust falls from the second cyclone cone 1202 to the second chamber 1201 by the centrifugal force and the gravity. Air current with a small amount of tiny dust is mixed with, and then the air current enters the filter chamber 51 through the exhaust pipe 1207, and the air current enters the motor chamber 21 after the filtration of the filter cartridge 522, and then is discharged at the air outlet 02, and the discharged air current enters the air outlet filter 7, and after being filtered by HEPA, the clean air current is discharged.

The utility model discloses hand-held type cleaning device 100, simple structure can the effective control complete machine volume, guarantees the leakproofness requirement, and inside convenient to detach, clearance moreover, the cost is lower.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hand-held cleaning device, comprising:

a motor module for generating a flowing air stream;

a handle adapted to be grasped in use;

the power module is used for supplying power and is connected to the lower end of the handle and positioned below the motor module;

the cyclone separation module comprises at least two stages of cyclone units which are connected in series, each stage of cyclone unit is provided with a chamber and a cyclone cone arranged in the chamber, all the chambers are mutually independent and arranged side by side, and the chambers between the two stages of cyclone units positioned on the upstream and the downstream of airflow are communicated through a fluid channel.

2. The handheld cleaning apparatus of claim 1, wherein the most upstream cyclone unit is a first stage cyclone unit having a first chamber and a first cyclone cone, and downstream of the first stage cyclone unit is a second stage cyclone unit having a second chamber and a second cyclone cone, the second cyclone cones being one or more than one arranged in parallel.

3. The hand-held cleaning apparatus according to claim 2, wherein the second cyclone cone is one, and the inlet of the second chamber is a plurality of spaced apart and tangentially directed air; or the like, or, alternatively,

the second cyclone cones are multiple, and the second chamber is provided with only one inlet corresponding to each second cyclone cone.

4. The hand-held cleaning apparatus according to claim 1, wherein the fluid passage is located at one axial end of all of the chambers, and all of the chambers are provided with a dust pouring port at the other axial end.

5. The hand-held cleaning appliance according to claim 4, wherein the inner wall of the fluid passage is formed as a wind guide surface corresponding to the outlet of the at least one cyclone unit.

6. The hand-held cleaning device according to claim 5, wherein the air guiding surface is an arc-shaped surface or a conical surface.

7. The hand-held cleaning device as claimed in claim 2, wherein the first cyclone cone is shaped as a cylinder, the wall of the first cyclone cone is provided with air holes, and the free end of the first cyclone cone is provided with a cyclone dust pressing device for preventing dust from being swirled up again.

8. The hand-held cleaning apparatus according to claim 7, wherein the gas-driven ashing device comprises:

the connecting part is coaxially connected to the free end of the first cyclone cone;

and the ash pressing part is connected with the connecting part, and the size of the ash pressing part is larger than that of the first cyclone cone in the radial direction of the first-stage cyclone unit.

9. The hand-held cleaning apparatus according to any one of claims 1-8, further comprising: the filter module is arranged at one axial end of the motor module and provided with a filter cavity and a filter element, the filter cavity is communicated with the motor cavity of the motor module, the cyclone units are multistage and are connected to the periphery of the motor module and the filter module along the axial extension direction of the motor module, and the cavity of the cyclone unit at the most downstream is communicated with the filter cavity.

10. The hand-held cleaning device according to any one of claims 1 to 8, wherein the chamber inside the first chamber outside the first cyclone cone constitutes a first cyclone chamber, the first cyclone chamber having a diameter of 60mm to 100 mm; and the chamber at the inner side of the second cyclone cone forms a second cyclone chamber, and the maximum diameter of the second cyclone cone is 40-80 mm.