CN111358345A

CN111358345A - Handheld dust collection equipment and filtering system

Info

Publication number: CN111358345A
Application number: CN202010263550.8A
Authority: CN
Inventors: 林利刚
Original assignee: Ningbo Meiskai Electric Appliance Co ltd
Current assignee: Ningbo Meiskai Electric Appliance Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-07-03

Abstract

The invention discloses a handheld dust collection device and a filtering system, which comprise a dust collection part, a dust barrel assembly with an airflow inlet and an air outlet barrel with an airflow outlet, wherein the dust barrel assembly is arranged on the air inlet side of the dust collection part; a second filtering component is arranged in the air outlet cylinder of the dust cylinder component to filter the airflow blown out by the dust collection component; thereby realizing secondary filtration and further improving the filtration efficiency of the gas; when the filtering capacity of the first filtering component is full, the second filtering component continues to play a role in filtering; and the second filtering component is arranged in the air outlet cylinder at the downstream of the dust collection component, so that the secondary filtering is avoided to prolong the airflow path at the upstream of the dust collection component, and the vacuum degree in the dust cylinder component is not influenced.

Description

Handheld dust collection equipment and filtering system

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to wireless handheld dust collection equipment.

Background

The handheld wireless dust collection equipment is widely applied to household cleaning operation due to the advantage of convenient use.

The existing handheld wireless dust collection equipment mainly comprises a suction nozzle assembly, a dust collection component, a dust collection assembly, a handle assembly and a power supply device. The suction nozzle assembly can be connected with other auxiliary accessories including a dust suction pipe, so that the handheld wireless dust suction equipment is suitable for different application scenes.

If the wireless dust collector of the manual type with the publication number of CN208371736U, a shell, a dust collecting barrel assembly, a handle, a dust absorption part and a power supply device are disclosed, wherein the power supply device is arranged on the shell, the dust absorption part is arranged at the top of the dust collecting barrel assembly, the air suction end of the dust absorption part is abutted against the surface of filter cotton of the dust collecting barrel assembly, and the dust absorption part operates to enable air to enter the dust collecting barrel assembly and be blown out after being filtered.

Such as a hand-held cleaner of the type disclosed in the publication No. CN208822661U, which comprises a main body, an air inlet, an air outlet, a dust container, and a cyclone separator located in the dust container, wherein air enters from the air inlet, is separated from dust and dirt by the cyclone separator, and then is blown out from the air outlet located at the side of the main body above the handle.

The handheld wireless dust collector disclosed in the above patent document is provided with the filtering device in the upstream air duct of the dust collection component, and the upstream air flow of the dust collection component needs to be filtered by the filtering device in advance, but after the dust collector works for a period of time, the filtering capacity of the filtering device is at full load, and the air flow mixed with fine dust is discharged from the air flow outlet after passing through the dust collection component, so that the dust collection effect is poor, and the fine dust is blown into the ambient air near the user.

Disclosure of Invention

The invention aims to provide a filtering system of handheld dust collecting equipment, which has a simple structure and reasonable layout, so that the filtering effect of the equipment is effectively improved.

The technical scheme provided by the invention for solving the technical problems is as follows: the filtering system of the handheld dust collecting equipment comprises a dust collecting component, a dust barrel component with an airflow inlet and an air outlet barrel with an airflow outlet, wherein the dust barrel component is arranged on the air inlet side of the dust collecting component, the air outlet barrel is arranged on the air outlet side of the dust collecting component, and a first filtering component is arranged in the dust barrel component to filter airflow before entering the dust collecting component; the air outlet cylinder is internally provided with a second filtering component for filtering the airflow blown out by the dust collection component.

The further optimized technical scheme of the invention is as follows: the tail end of the air outlet cylinder is provided with an openable cover, and when the cover is opened, the second filtering component can be detached from the air outlet cylinder and pulled out from the tail end of the air outlet cylinder.

The further optimized technical scheme of the invention is as follows: and the peripheral side wall of the air outlet cylinder is provided with an air outlet.

The further optimized technical scheme of the invention is as follows: the airflow outlet is a plurality of airflow holes arranged on two sides of the air outlet cylinder.

The further optimized technical scheme of the invention is as follows: the first filtering component and the second filtering component are both used for filtering HEPA.

The further optimized technical scheme of the invention is as follows: the central axis of the dust cylinder component and the axis of the air outlet cylinder form an angle of 90 degrees.

The further optimized technical scheme of the invention is as follows: the first filtering component and the second filtering component are of a cylindrical structure, the first filtering component is coaxial with the dust barrel component, and the second filtering component is coaxial with the air outlet barrel.

The further optimized technical scheme of the invention is as follows: the dust cylinder component is arranged at the lower side position of the dust absorption part, and the air outlet cylinder is arranged at one side position of the dust absorption part.

The further optimized technical scheme of the invention is as follows: the lateral part position of dirt section of thick bamboo subassembly be equipped with the suction nozzle, dirt section of thick bamboo subassembly with the motor constitute a cylinder, suction nozzle and play dryer are located the both sides of cylinder.

Another subject of the invention is: the handheld dust suction equipment is characterized by comprising the filtering system, a battery and a handheld part.

Compared with the prior art, the invention has the advantages that the dust cylinder component is internally provided with the first filtering component to filter the airflow before entering the dust collection component; the second filtering component is arranged in the air outlet cylinder to filter the airflow blown out by the dust suction component, so that secondary filtering is realized, the filtering efficiency of the air is further improved, and the dust content in the discharged air is reduced; when the filtering capacity of the first filtering component is full, the second filtering component still realizes the filtering function, and the phenomenon that the dust is sucked into the handheld dust collection equipment from the ground or the surface of an object and then is discharged into the external environment air due to the insufficient filtering capacity of the equipment is avoided.

And set up the second filtering component in the play chimney of dust absorption part low reaches, avoid the secondary filter to prolong the air current route of dust absorption part upper reaches, make the vacuum in the dirt section of thick bamboo subassembly not influenced, do not disturb dust collection efficiency, strengthened filtration efficiency when avoiding increasing the energy consumption.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a first schematic diagram of a preferred embodiment of the present invention;

FIG. 2 is a second schematic diagram of a preferred embodiment of the present invention;

FIG. 3 is a first diagram of a host in accordance with a preferred embodiment of the present invention;

FIG. 4 is a second schematic diagram of a host in accordance with a preferred embodiment of the present invention;

FIG. 5 is a third schematic diagram of a host in accordance with a preferred embodiment of the present invention;

FIG. 6 is a fourth schematic diagram of the host computer of a preferred embodiment of the present invention;

FIG. 7 is a cross-sectional view of a mainframe of a preferred embodiment of the present invention;

FIG. 8 is an exploded view of a mainframe of a preferred embodiment of the present invention;

FIG. 9 is an exploded view of the mainframe of a preferred embodiment of the present invention;

FIG. 10 is an exploded view of the host computer of a preferred embodiment of the present invention;

FIG. 11 is an exploded view of a dustcup assembly in accordance with a preferred embodiment of the present invention;

fig. 12 is an exploded view of an air outlet housing according to a preferred embodiment of the present invention;

FIG. 13 is an enlarged partial schematic view of FIG. 10 in accordance with a preferred embodiment of the present invention;

fig. 14 is a partially enlarged schematic view of fig. 11 in accordance with a preferred embodiment of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", etc. indicate the orientation or position relationship that the product is usually placed when using, and are based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-2, a hand-held cleaner includes a main body 001 and an auxiliary assembly 002.

As shown in fig. 1-3, wherein a host 001 includes a filtration system 100, a power supply system 200, and a hand held assembly 300 for grasping. When taking in, thereby the host computer accessible is shelved on a support 003 of fixing on the wall and is made hand-held type dust extraction equipment accomodate vertically, and area is little, accomodates the convenience.

As shown in fig. 3-9, the filter system 100 includes a vacuum cleaner assembly 10, a dustcup assembly 20 having an airflow inlet S1, and an air-out cup 30 having an airflow outlet S2. The dust collection part 10 comprises a motor shell and an air suction motor inside the motor shell, a dust cylinder assembly 20 is arranged on the air inlet side of the dust collection part 10, an air outlet cylinder 30 is arranged on the air outlet side of the dust collection part 10, and a first filtering assembly 21 is arranged in the dust cylinder assembly 20 to filter the air flow before entering the dust collection part 10; the outlet cylinder 30 is provided with a second filter assembly 31 for filtering the airflow from the dust-collecting unit 10.

It should be understood that the airflow inlet S1, the dust collecting chamber of the dustcup assembly 20, the first filter assembly 21, the dust-collecting part 10, the second filter assembly 31, the air passage of the air-out sleeve 30 and the airflow outlet S2 are communicated in turn to constitute an airflow path of the dust-collecting apparatus.

The impeller of the suction motor rotates to form a negative pressure in the dust cylinder assembly 20, and an external air flow is drawn into the dust cylinder assembly 20 from the air flow inlet S1 and discharged after passing through the above-mentioned air flow path, thereby performing a cleaning operation of the hand-held dust suction apparatus. Thus, the air filtered by the first filter assembly 21 is conducted to the inside of the second filter assembly 31 after passing through the dust suction part 10, and is secondarily filtered by the second filter assembly 31.

The first filter assembly 21 not only has a cleaning effect, but also can prevent dust in the air flow from entering the dust suction part 10 to cause adverse effects on the device, effectively protects the air suction motor and improves the reliability of the mechanical operation of the equipment.

And the existence of the second filter assembly 31 realizes two-stage filtration of dust, thereby further improving the filtration efficiency of the gas and reducing the dust content in the exhaust gas. When the filtering capacity of the first filtering component 21 is full, the second filtering component 31 plays an important role in filtering, so that the dust cannot be removed, and the dust discharged to the external environment air is easily sucked into the air and causes damage to human health because the dust is mixed in the air and is easily sucked into the air after being sucked into the handheld dust collection equipment from the ground or the surface of an object due to insufficient filtering capacity of the equipment.

The second filtering component 31 is arranged in the air outlet cylinder 30 at the downstream of the dust collection component 10, so that the secondary filtering is avoided to prolong the airflow path at the upstream of the dust collection component 10, the vacuum degree in the dust cylinder component 20 is not influenced, the dust collection efficiency is not interfered, and the filtering efficiency is enhanced while the energy consumption is prevented from being increased.

Preferably, as shown in fig. 5, in the present embodiment, the dust suction part 10 is located above the dustcup assembly 20, and the dust suction part 10 is installed coaxially with the dustcup assembly 20.

Here, it should be noted that the dustcup assembly 20 includes a cylindrical body, the shapes of the cylindrical body and the housing of the dust suction part are not limited to a cylindrical shape, and the size of each section may not be uniform. However, in the present embodiment, the cylinder is preferably a cylindrical structure, and the dust-absorbing part 10 has a cylindrical housing with a diameter substantially the same as that of the dust cylinder assembly 20, so that the dust cylinder assembly 20 and the dust-absorbing part 10 form a cylinder, thereby improving the compactness of the structure and making the appearance of the device more concise and beautiful.

Further, the cross-section of the dirt collection chamber of the dustcup assembly 20 is not limited to regular shapes such as circles, polygons, that is, the shape of the dirt collection chamber is not limited to regular cylinders of equal cross-section.

Preferably, the axis of the impeller of the dust suction component 10 is coaxial with the dust collecting cavity of the dust cylinder component 20, so that the air resistance between the dust cylinder component 20 and the dust suction component 10 is reduced, and the suction force of the equipment is enhanced.

Specifically, as shown in fig. 7-9, a separating device 22 is disposed within the dustcup assembly 20, and the separating device 22 is coaxially mounted with the dustcup assembly 20 and the dust collecting part 10. The first filter assembly 21 is mounted between the separating apparatus 22 and the cleaner part 10. When the dust suction part 10 operates and negative pressure is formed at the front side of the dust suction part, the airflow entering the dust cylinder assembly 20 from the air inlet channel Q can firstly enter the separating device 22 to separate large dust and garbage from air, then flows through the first filtering assembly 21 to filter dust, and then flows into the dust suction part 10 from the air inlet of the casing of the dust suction part 10. It should be noted that the principle of the structure of the separating device 22 is known to those skilled in the art and will not be described again here.

Preferably, the suction unit 10 is provided at its upper end with a mounting chamber T for receiving the first filter assembly 21, the first filter assembly 21 being supported on the separating apparatus 22.

The separating device 22 is detachably mounted at the bottom of the housing of the dust suction part 10, when a user desires to clean the first filter assembly 21 and the separating device 22, the dust cylinder assembly 20 can be detached from the dust suction part 10, then the separating device 22 is rotated and taken out of the dust suction part 10 downward together with the first filter assembly 21, and then the first filter assembly 21 is taken out of the separating device 22, so that the detached parts can be cleaned one by one, thereby the front section of the filter system 100 of the dust suction apparatus visible to the dust cylinder assembly 20 is simple and compact in structure, and convenient to detach, install and clean.

Preferably, the separating device 22 further has a filter core G for primarily filtering the sucked air, so as to prevent the air with a large amount of dust and impurities from flowing to the first filter assembly 21 and the dust suction part 10 to pollute the first filter assembly 21 and the dust suction part 10, thereby ensuring the dust suction effect of the dust collector and prolonging the service life of the equipment.

Further preferably, as shown in fig. 11, the first filter assembly 21 may be a filtered HEPA. Preferably cylindrical, and the first filter assembly 21 is coaxial with the dustcup assembly 20 and the dust collecting part 10. The installation cavity T containing the first filter assembly 21 is provided with openings at the upper and lower parts, and the air flow enters the first filter assembly 21 from the lower end of the installation cavity T and flows out from the upper end opening through the first filter assembly 21.

Preferably, a sealing member is provided between the mounting chamber T and the first filter assembly 21 to ensure that the dusty air flow does not pass through the gap therebetween.

As shown in FIG. 11, there is an example of a specific connection manner of the dustcup assembly 20 and the dust sucking part 10. The outer side of the cylinder 23 of the dust cylinder assembly 20 is provided with a coupling part L communicated with the dust collecting cavity inside the cylinder 23, the coupling part L is used for coupling the dust collecting component 10, the cylinder 23 is provided with a rotary clamping structure coupled with the dust collecting component 10, the coupling part L is provided with a first locking assembly and a first switch Y for controlling the first locking assembly to be locked or released, and the first locking assembly is used for locking the rotary clamping structure so as to lock the cylinder 23 and the dust collecting component 10.

Preferably, as shown in fig. 14, a rotary snap structure is arranged at the upper port of the cylinder 23. The rotary clamping structure comprises a plurality of sliding chute assemblies 1 distributed along the circumference of the connecting part L, and each sliding chute assembly 1 comprises a longitudinal guide groove 1a downwards opened from the cylinder 23 and a positioning sliding chute 1b communicated with the adjacent guide groove. The lower end of the shell of the dust absorption part 10 is provided with an insertion block 2 matched with the chute component 1. When the dust suction part 10 is connected with the dust cylinder assembly 20, after the insert block 2 is inserted downwards from the upper end opening of the longitudinal guide groove 1a, the dust cylinder assembly 20 is rotated to enable the insert block 2 to enter the positioning chute 1b so as to stably connect the dust suction part 10 with the dust cylinder assembly 20, and simultaneously, the dust cylinder assembly is prevented from being separated from the dust suction part when a user carelessly touches the dust cylinder assembly during operation.

In addition, the rotary clamping structure is a male thread arranged on the outer surface of the connecting part L, and the lower end of the shell of the dust suction part 10 is provided with a matched female thread. The dust suction part 10 and the dustcup assembly 20 are rotatably coupled by a screw.

Further preferably, as shown in fig. 13, the first locking assembly includes a locking pin 3 extending into an inner wall of the coupling portion L, the locking pin 3 is controlled by the first switch Y to extend forward or retract, and when the first locking assembly is in a locked state, the locking pin 3 extends into the locking hole 4 of the dust suction part 10 to lock the cylinder 23 and the dust suction part 10, so that the cylinder 23 and the dust suction part 10 are connected more stably and reliably, and the phenomenon that the cylinder 23 and the dust suction part 10 are separated due to reverse rotation to destroy the firmness of the connection structure is avoided.

Through rotatory block structure and the cooperation of first locking Assembly jointly for installation and dismantlement are convenient between dust absorption part 10 and the dirt section of thick bamboo subassembly 20, thereby not only conveniently clear away the rubbish dust in the dirt section of thick bamboo subassembly 20, still the person of facilitating the use cleans and changes dirt section of thick bamboo subassembly 20 and inside first filtering component, and the back stable in structure is reliable after having installed moreover, and is safe strong.

As shown in fig. 6 and 7, the particular arrangement of the airflow inlet S1 of the dustcup assembly 20 is shown. An air inlet nozzle 40 is disposed on the outer surface of the sidewall of the dustcup assembly 20. The inlet nozzle 40 includes an inlet passage Q, one end of the inlet passage Q communicates with an airflow inlet S1 formed in the sidewall of the dustcup assembly 20, the other end of the inlet passage Q has a suction inlet X, and the dust-laden air enters the dustcup assembly 20 through the suction inlet X of the inlet passage Q.

Preferably, the intake nozzle 40 is mounted transversely to the outer wall of the dustcup assembly 20 with its axis perpendicular to the axis of the dustcup assembly 20. Further preferably, the axis of the air intake passage Q is perpendicular to the axis of the dustcup assembly 20. The air inlet channel Q is provided with an air guide part in the tangential direction of the dust cylinder assembly 20, so that external air flow enters the dust cylinder assembly 20 along the tangential direction, centrifugal force is generated by the air flow, and therefore impurities such as dust in the air flow can be separated conveniently, and the separation effect is improved.

Preferably, as shown in fig. 1 and 2, the air inlet nozzle 40 may be coupled with an air inlet pipe J with an auxiliary accessory such as a floor brush, so as to adapt to the cleaning work requirements of different scenes.

It is further preferable that the first switch Y of the first locking member is provided on the upper surface of the nozzle 40 to be easily accessible to a user, and the first switch Y is a push switch to be more easily operated by the user.

As shown in fig. 11, in the present embodiment, an openable cover 5 is disposed at the bottom of the cylinder 23, so that the user can directly open the cover 5 to dump the dust and garbage in the dust collecting chamber without detaching the cylinder 23.

Preferably, as shown in fig. 6, 10 and 11, one side of the cover 5 is coupled to the lower portion of the cylinder 23, and the other side of the cover 5 is provided with a second locking component and a second switch R for controlling the locking or releasing of the second locking component, wherein the second switch R can lock the other side of the cover 5 to the lower portion of the cylinder 23 to close the bottom of the dustcup assembly 20.

Further preferably, as shown in fig. 11, a sealing member M is provided between the bottom edge of the cover 5 and the bottom edge of the cylinder 23 to maintain a good air tightness of the dust cylinder assembly 20, prevent dust from leaking out of the gap, avoid wind loss, and ensure a good dust suction capability of the dust suction apparatus.

It is further preferred that the second switch R is disposed on the sidewall of the barrel 23, which is preferably a push button switch, so as to make the user experience more comfortable.

As an embodiment of the air outlet cylinder 30, as shown in fig. 3 to 9, the air outlet cylinder 30 is disposed at a downstream position of the dust suction part 10, and the second filter assembly 31 is abutted to the air outlet C of the dust suction part 10. The outlet cylinder 30 is provided with an openable lid, and when the lid is opened, the second filter assembly 31 can be detached from the outlet cylinder 30 and taken out of the outlet cylinder 30. Therefore, the user can clean the dust on the second filter assembly 31 conveniently, the second filter assembly 31 is kept clean, and the handheld dust collecting equipment is beneficial to maintaining the original dust collecting capacity and efficacy ratio.

Preferably, in this embodiment, the outlet cylinder 30 is installed at a side position of the dust suction part 10, the axis of which is 90 degrees to the central axis of the dustcup assembly 20, the air inlet nozzle 40 and the outlet cylinder 30 are located at two opposite sides of the cylinder formed by the dustcup assembly 20 and the dust suction part 10, and the handheld assembly 300 and the power supply system 200 of the dust suction apparatus are further provided at the side of the outlet cylinder 30.

The air outlet cylinder 30 and the dust suction part 10 are arranged at an angle of 90 degrees, so that dust accumulated on the windward side of the second filter assembly 31 is prevented from falling back into the dust suction part 10, and the dust suction part 10 is prevented from being damaged, and the service life of the dust suction part 10 is prevented from being influenced.

Further, the air outlet cylinder 30 is a long cylinder-shaped component extending along the direction of 90 degrees of the axis of the dust suction component 10, the second filter assembly 31 inside the air outlet cylinder is a cylinder-shaped structure parallel to the axis of the air outlet cylinder 30, and an airflow outlet S2 is arranged on the peripheral side wall of the air outlet cylinder 30.

As shown in fig. 12, the second filter assembly 31 is a filter hepa, and includes a mounting portion a1, a cylindrical hepa filter a2 and a bottom plate A3, the mounting portion a1 is provided with an air inlet and is abutted against the air outlet C of the dust suction part 10, and the bottom plate A3 closes the end of the hepa filter a 2. Therefore, the air outlet cylinder 30 and the second filtering component 31 inside the air outlet cylinder can be arranged to be longer, the filtering area of the second filtering component 31 is increased under the condition that the volume of the dust collecting equipment is smaller, and the filtering effect is improved.

In addition, the air outlet cylinder 30 is installed far away from the air inlet nozzle 40, so that the suction inlet X of the air inlet nozzle 40 is far away from the airflow outlet S2 of the air outlet cylinder, clean air exhausted from the airflow outlet S2 is prevented from being directly blown to a place to be cleaned, impurities such as dust and the like at the place to be cleaned are prevented from being rolled up by the clean air, and cleaning efficiency is improved.

The air outlet cylinder 30, the power supply system 200 and the handheld component 300 are arranged on the same side, so that the center of the equipment is as close to the hand of a user as possible, the force applying lever is reduced, and the equipment is easier and more labor-saving to use.

More preferably, the airflow outlet S2 is a plurality of airflow holes opened on both sides of the outlet housing 30. The air current is discharged towards the side direction environment, can not blow to the user and can not blow to the thing of treating the cleanness, can not be with the dust on the thing surface of treating the cleanness in being taken to the ambient air, can not pollute the air of user's nearly one's body again for user's use impression is better.

As shown in fig. 12, in this embodiment, the rear end of the air-out cylinder 30 is open, the openable cover 33 is disposed at the rear end, when the cover 33 is opened, the second filter assembly 31 can be detached from the air-out cylinder 30 and pulled out from the rear end of the air-out cylinder 30, the bottom plate A3 of the second filter assembly 31 is matched with the opening of the air-out cylinder 30, and when the second filter assembly 31 is inserted into the air-out cylinder 30, the bottom plate A3 seals the rear end of the air-out cylinder 30.

Preferably, a locking structure is provided between the bottom plate a3 of the second filter assembly 31 and the housing of the air-out drum 30, when the locking structure is locked, the second filter assembly 31 is restricted from being pulled out of the air-out drum 30, and when the locking structure is unlocked, the second filter assembly 31 can be pulled out of the air-out drum 30.

As shown in fig. 3, the locking structure includes a button N disposed on the upper surface of the air outlet duct 30, and the locking structure is controlled by the button N to lock or unlock the housing of the air outlet duct 30 and the chassis a 3. The button N is arranged on the upper surface of the air outlet cylinder 30, so that a user can conveniently press the button N to detach the second filter assembly 31.

As shown in fig. 3, in the present embodiment, the handheld component 300 is disposed below the air-out cylinder 30, connected to the bottom of the housing at the rear section of the air-out cylinder 30, and inclined backwards at a certain angle. Therefore, the integral gravity center of the handheld dust collecting equipment can be optimized, and a user can hold the handheld dust collecting equipment more easily and more laborsavingly.

As shown in fig. 3, the power supply system 200 of the present embodiment is disposed between the dustcup assembly 20 and the handheld assembly 300, the handheld assembly 300 includes an electrical connection portion 301 and a handheld portion 302 for connecting the power supply system 200, the power supply system 200 includes a battery 201 and a connection assembly 202 including a connection port, the power supply system 200 is detachably connected to the front side of the electrical connection portion 301 of the handheld assembly 300 through the connection assembly 202, and is communicated with the power supply port on the front side of the handheld assembly 300 through the connection port, so as to achieve electrical connection therebetween.

Preferably, the inner surface of the handheld portion 302 is provided with a control switch K for controlling the operation of the dust collection motor, and when a user holds the handheld portion 302, the user can easily press the control switch K to realize operation, so that the user experience is more comfortable and easy.

The present invention provides a hand-held vacuum cleaner and a filter system, which are described in detail above, and the principle and the embodiments of the present invention are explained herein by using specific examples, and the description of the above examples is only used to help understanding the present invention and the core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The filtering system of the handheld dust collecting equipment is characterized by comprising a dust collecting component, a dust barrel component with an airflow inlet and an air outlet barrel with an airflow outlet, wherein the dust barrel component is arranged on the air inlet side of the dust collecting component; the air outlet cylinder is internally provided with a second filtering component for filtering the airflow blown out by the dust collection component.

2. The system of claim 1, wherein the rear end of the outlet housing has an openable lid, and when the lid is opened, the second filter assembly is removed from the outlet housing and withdrawn from the rear end of the outlet housing.

3. The system of claim 1, wherein the peripheral sidewall of the outlet housing defines an airflow outlet.

4. The filter system of claim 1, wherein the airflow outlet is a plurality of airflow holes formed on both sides of the outlet housing.

5. The system of claim 1, wherein the first and second filter assemblies are each a filtered HEPA filter.

6. The system of claim 1, wherein the central axis of the dustcup assembly is at 90 degrees to the axial axis of the air-out sleeve.

7. The system of claim 1, wherein the first filter assembly and the second filter assembly are both cylindrical structures, the first filter assembly is coaxial with the dustcup assembly, and the second filter assembly is coaxial with the exhaust funnel.

8. The filter system of claim 1, wherein the dustcup assembly is installed at a lower position of the dust-collecting part, and the air-out tube is installed at a side position of the dust-collecting part.

9. The system of claim 8, wherein the canister assembly includes an inlet nozzle positioned on a side of the canister assembly, the canister assembly and the suction member forming a cylinder, the inlet nozzle and the outlet nozzle being positioned on opposite sides of the cylinder.

10. A hand-held cleaning appliance comprising a filter system according to any one of claims 1 to 9, a battery and a hand-held portion.