CN212140324U

CN212140324U - Dust collection barrel assembly and dust collector

Info

Publication number: CN212140324U
Application number: CN202020386636.5U
Authority: CN
Inventors: 彭劲松; 梁玉
Original assignee: Suzhou Vacs Electrical Co Ltd
Current assignee: Suzhou Vacs Electrical Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-12-15
Anticipated expiration: 2030-03-24

Abstract

The utility model provides a dust collection bucket subassembly and dust catcher, the dust collection bucket subassembly includes: a dust bucket for collecting dust; the dust barrel cover is arranged at the bottom of the dust barrel; the air inlet pipe is communicated with the inner cavity of the dust barrel and is used for introducing the dust-containing airflow; the microporous filter is used for filtering dust-containing airflow and guiding the filtered air to flow towards the axial direction of the dust barrel; a primary cyclone for causing the dust-laden air flow introduced from the air inlet duct to rotate around the microporous filter; the secondary cyclone is arranged at the downstream of the microporous filter and comprises at least two cyclone cones, each cyclone cone comprises an outer cone and an inner pipe, and the cyclone cones are used for receiving the air flowing out of the microporous filter and promoting the airflow to rotate in the cyclone cones to form secondary cyclones; and an air intake filter, located downstream of the secondary cyclone, for receiving air flowing out of the secondary cyclone and transmitting the air to the outside of the dust barrel assembly, and including a folded filter paper.

Description

Dust collection barrel assembly and dust collector

Technical Field

The utility model belongs to the dust catcher field, concretely relates to dust collection bucket subassembly and dust catcher.

Background

With the development of lithium battery technology, rechargeable vacuum cleaners like that disclosed in CN204016180U are becoming popular. The dust collector generally adopts a dust collection barrel component to replace a traditional dust collection bag, and the specific structure of the dust collection barrel component is as follows: a cyclone separation device is arranged in the dust collection barrel; the filter unit is also referred to as an inlet air filter because it is located in the upper part of the cyclonic separating apparatus and upstream of the electric fan assembly. The air inlet filter of the CN204016180U dust collector is surrounded by the dust collection barrel component and the electric fan component and is hidden in the dust collector.

The single cyclone separating device (also called cyclone) has weak dust-air separating capability, although it can separate part of the dust from the air flow and let it fall to the bottom of the dust collecting barrel, but more dust can pass through the cyclone separating device to reach the air intake filter, therefore, the air intake filter is easily blocked by the dust, and the dust collecting capability of the dust collector is sharply reduced.

Furthermore, since the intake air filter is surrounded by other relatively complicated components, the components surrounding the intake air filter must be removed to view and clean the intake air filter, which makes cleaning the intake air filter inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve the dust collection bucket subassembly dirt gas separation ability of above-mentioned dust catcher not strong and the inconvenient problem of air inlet cross filter clearance and go on, aim at provides a dust collection bucket subassembly and dust catcher.

The utility model provides a dust collection bucket subassembly for the setting is collected dirt on the dust catcher, has such characteristic, include: a dust bucket for collecting dust; the dust barrel cover is arranged at the bottom of the dust barrel; the air inlet pipe is arranged at the front part of the dust barrel, is communicated with the inner cavity of the dust barrel and is used for leading in dust-containing airflow; the micropore filter is arranged in the dust barrel and is provided with a plurality of micropores for filtering dust-containing airflow and guiding the filtered air to flow towards the axial direction of the dust barrel; a primary cyclone for causing the dust-laden air flow introduced from the air inlet duct to rotate around the microporous filter; the secondary cyclone is arranged at the downstream of the microporous filter and comprises at least two cyclone cones, and the cyclone cones are used for receiving the air flowing out of the microporous filter and promoting the airflow to rotate in the cyclone cones to form secondary cyclone; and the air inlet filter is positioned at the downstream of the secondary cyclone and used for receiving the air flowing out of the secondary cyclone and transmitting the air to the outside of the dust collection barrel assembly, and the air inlet filter comprises folding filter paper, wherein the cyclone cones are arranged along the direction surrounding the air inlet filter, the air inlet filter is in a hollow shape, the top of the air inlet filter is provided with an opening, the bottom of the air inlet filter is closed, the bottom of the dust collection barrel cover is provided with an opening, the air inlet filter can be extracted from the dust collection barrel through the opening, and the air inlet filter can also be filled back.

In the dust collecting bucket assembly provided by the utility model, the dust collecting bucket assembly can also have the following characteristics: wherein, a part of the dust barrel cover is rotatably arranged on the dust barrel, and the dust barrel is provided with a locking and releasing mechanism which enables the dust barrel cover to be opened or closed relative to the dust barrel.

In the dust collecting bucket assembly provided by the utility model, the dust collecting bucket assembly can also have the following characteristics: wherein, the bottom of the air intake filter is matched with the second-stage cyclone in a sealing way.

The utility model also provides a dust catcher, its characterized in that: comprises the dust collecting barrel component.

Action and effect of the utility model

According to the utility model relates to a dust collection bucket subassembly, because including elementary cyclone, microporous filter, second grade cyclone and air inlet filter, the second grade cyclone contains two at least cyclone cones, and after the dusty air current filtered through elementary cyclone and microporous filter, the rethread second grade cyclone carries out the second time whirlwind and filters, then passes through air inlet filter again, so the whole dirt gas separation ability of dust collection bucket subassembly can show the reinforcing. Compared with the dust collecting barrel adopting a single cyclone filter in the dust collector (CN204016180U) in the prior art, the dust collecting barrel component provided by the utility model can separate more dust from the dust-containing airflow by utilizing the cyclone principle, effectively reduces the dust amount rushing to the air inlet filter, thereby effectively prolonging the service life of the air inlet filter.

Additionally, the utility model discloses an air inlet filter by folding filter paper is made, and filter paper is after folding, and total surface area is showing and is increaseing, and such structure makes air inlet filter's effective filtration area bigger, and life is longer.

In addition, dirt bucket lid has the opening, when needing the clearance air inlet to filter, and the user need not unpack dirt bucket subassembly and motor element apart like CN204016180U, just can take out the air inlet filter from dirt bucket through this opening and clear up to reset the air inlet filter installation through this opening after the clearance is accomplished, it is more convenient to use.

Drawings

Figure 1 is a perspective view of a dust bin assembly in an embodiment of the present invention;

figure 2 is an exploded view of a dust bin assembly in an embodiment of the invention;

figure 3 is a vertical cross-sectional view of a dust bin assembly in an embodiment of the invention;

figure 4 is a horizontal cross-sectional view of a dust bin assembly in an embodiment of the invention;

FIG. 5 is a view showing a state where the dust barrel assembly is mounted with the cleaner body according to the embodiment of the present invention;

FIG. 6 is a view showing the dust barrel assembly separated from the cleaner body according to the embodiment of the present invention;

fig. 7 is a schematic view illustrating the electric fan and the dust collecting barrel assembly used together according to the embodiment of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated with reference to the accompanying drawings.

< example >

The present embodiment provides a dust bucket assembly 10 and a dust collector 100 having the same 10.

Figure 1 is a perspective view of a dust bin assembly in an embodiment of the present invention; figure 2 is an exploded view of a dust bin assembly in an embodiment of the present invention.

As shown in fig. 1 and 2, the dust collecting bucket assembly 10 of the present embodiment includes an air inlet pipe 14, a dust bucket 11, a microporous filter 17, a secondary cyclone, an air inlet filter 28 and a dust bucket cover 13.

Figure 3 is a vertical cross-sectional view of a dust bin assembly in an embodiment of the invention; figure 4 is a horizontal cross-sectional view of a dust bin assembly in an embodiment of the invention.

As shown in fig. 3 and 4, the air inlet pipe 14 is disposed in front of the dust barrel 11 and is communicated with the inner cavity of the dust barrel 11. A guide plate 15 is provided in the air inlet duct 14, and air containing dust (also called as dust-containing air flow) flowing from the air inlet duct 14 is deflected by the guide plate 15 so as to be flushed toward the inner wall of the dust bucket 11.

The dirt cup 11 may be either regular or irregular cylindrical, having an axis 12. The axis 12 is for ease of illustration only and need not be a symmetrical center line of the dirt cup 11.

As shown in fig. 2, the microporous filter 17 is disposed in the dust tub 11, and has a plurality of fine through holes in the middle and a flow guide pipe 29 in the lower part. In the state shown in fig. 1, the lower part of the draft tube 29 is in sealing engagement with the dust bucket cover 13.

A portion of the dust bin cover 13 is rotatably mounted on the dust bin 11. In addition, the dust barrel 11 is further provided with a locking mechanism 32. When the locking mechanism 32 is in the locking state, the dust bucket cover 13 can be locked on the dust bucket 11 and is in sealing fit with the dust bucket 11 so as to contain dust; when the locking mechanism 32 is in the unlocked state, the dust bin cover 13 can be rotated downward to empty the dust bin 11 of dust. The dirt bucket 11 is made of a transparent or translucent material to facilitate a user to see the amount of dirt in the dirt bucket 11.

As shown in fig. 2 and 3, the second stage cyclone is disposed inside the microporous filter 17, and includes an inner tube unit 18 and an outer cone unit 19. The inner tube unit 18 comprises at least two inner tubes 22 and the outer cone unit 19 comprises at least two outer cones 21. The outer cone unit 19 further comprises an intake filter mounting cavity 27 for mounting an intake filter 28. In the state shown in fig. 3, the lower edge of the inlet air filter installation cavity 27 is in sealing engagement with the upper surface of the dust bucket cover 13.

The outer cone unit 19 and the inner tube unit 18 are independent of each other, and when they are assembled inside the vacuum cleaner, the outer cone unit 19 and the inner tube unit 18 are nested together, one inner tube 22 and one outer cone 21 constitute a cyclone cone, the inner tube 22 is located inside the outer cone 21, and a first air inlet 20 is provided at the top periphery of each outer cone 21, so that air introduced through the micro-porous filter 17 can flow into the cyclone cone through the first air inlet 20 in a tangential direction of the outer wall of the inner tube 22, and a rotating air flow is formed in the cyclone cone.

As shown in fig. 3, when the inner tube 22 and the outer cone 21 are nested together, an air gap 23 is formed between the outer wall of the inner tube 22 and the inner wall of the outer cone 21, and the air introduced from the first air inlet 20 rotates to flow downward along the air gap 23.

The bottom of the outer cone 21 is provided with a downward dust outlet 24, the bottom of the inner tube 22 is provided with a downward second air inlet 25, and the second air inlet 25 is higher than the dust outlet 24. The top of the inner tube 22 is provided with an inner tube air outlet, because of the sealing fit design in the structure, the air flowing in from the first air inlet 20 can only flow out of the cyclone cone upwards through the inner tube air outlet, namely flows out of the secondary cyclone, and cannot flow out from other places.

As shown in fig. 3, the intake filter 28 is installed in the intake filter installation cavity 27, the top of the intake filter installation cavity 27 is located at the top of the dust collection barrel 11, and the bottom of the intake filter installation cavity 27 extends to the lower part of the dust collection barrel 11 and is in sealing fit with the dust collection barrel cover 13.

As shown in fig. 2 and 3, the intake air filter 28 is preferably hollow cylindrical, and includes a hollow circular top cover, folded filter paper enclosing the hollow cylinder, and a solid circular bottom cover 31. The folded filter paper is positioned between the hollow top and bottom caps 31, and the outer diameters of the hollow top and bottom caps 31 are larger than the maximum outer diameter of the folded filter paper. The folded filter paper is preferably folded in a vertical direction. The hollow top cover and bottom cover 31 of the intake air filter 28 are respectively in sealing fit with the inner wall of the intake air filter installation cavity 27, thereby ensuring that air introduced from upstream can only enter the hollow cavity 30 of the intake air filter 28 through the surface of the folded filter paper.

The intake air filter 28 is provided at an upper side thereof with a filter intake port 26 for receiving air introduced upstream. The intake filter 28 comprises a hollow cavity 30 surrounded by folded filter paper, and the dust-containing air flow flows in from the outer surface of the folded filter paper, flows out from the upper part of the hollow cavity 30 and runs to the electric fan of the dust collector.

Compared with the air inlet filter with a smooth surface, the folded filter paper has a larger surface area on the premise of the same outer diameter, so that more dust can be intercepted, and better air permeability is realized. The filtration efficiency of folding filter paper can select different grades as required, for example can reach HEPA level, that is to say to the dust that the particle size is 0.3 micron, filtration efficiency reaches more than 99.9%. The material of the folded filter paper is preferably a nonwoven fabric.

As shown in fig. 3 and 4, in the present embodiment, the number of the cyclone cones is 10, and the 10 cyclone cones are arranged outside the inlet air filtering installation cavity 27. The handle 33 is arranged below the bottom of the air intake filter 28 and is arranged on the bottom cover 31 of the air intake filter.

As shown in fig. 2 and 3, the dust barrel cover 13 is further provided with an opening 35, so that a user can conveniently touch the handle 33 from the outside of the dust barrel 11, and then draw the intake filter 28 out of the dust barrel 11 through the opening 35, and also conveniently put the intake filter 28 back into the dust barrel 11 through the opening 35, and meanwhile, the intake filter 28 and the intake filter installation cavity 27 are in sealing fit. The bottom cover 31 is preferably in friction fit with the intake air filter installation cavity 27 by a soft rubber element.

FIG. 5 is a view showing a state where the dust barrel assembly is mounted with the cleaner body according to the embodiment of the present invention; FIG. 6 is a view showing the dust barrel assembly separated from the cleaner body according to the embodiment of the present invention; fig. 7 is a schematic view illustrating the electric fan and the dust collecting barrel assembly used together according to the embodiment of the present invention.

As shown in fig. 5 to 7, the cleaner 100 in the present embodiment includes a cleaner body 36 and a dirt cup assembly 10. Wherein the cleaner body 36 has the electric fan 34.

An electric fan 34 is located outside the dust bin assembly 10 for generating a suction airflow. In one embodiment, as shown in fig. 5 and 7, after the vacuum cleaner 100 is installed, the electric fan 34 is located above the dust collecting bucket assembly 10 and is in close contact with the dust collecting bucket assembly 10, i.e., the intake filter 28 in the dust bucket 11. The electric fan 34 may also be disposed at a location remote from the dust bin assembly 10 and in air flow communication with the dust bin assembly 10 in a sealed manner, ensuring that all air flowing out of the dust bin assembly 10 reaches the electric fan 34 and is discharged downstream through the electric fan 34.

As shown in FIG. 3, the electric fan 34 rotates at a high speed to generate a negative pressure, the negative pressure is transmitted to the surface of the intake air filter 28 through the hollow inner cavity 30 of the intake air filter 28, then transmitted to the inner pipe 22 of the secondary cyclone through the filtering air inlet 26, transmitted to the air gap 23 between the inner pipe 22 and the outer cone 21 from the second air inlet 25 at the bottom of the inner pipe 22, and further transmitted to the first air inlet 20 of the secondary cyclone. Each cyclone cone in the secondary cyclone has a separate first inlet 20 and each cyclone cone also has a separate filtering inlet 26.

After the negative pressure generated by the electric fan 34 is transmitted to the first air inlet 20 of the secondary cyclone, the negative pressure is further transmitted to the gap 16 through the micropores of the microporous filter 17, namely, between the inner wall of the dust barrel 11 and the microporous filter 17, and finally transmitted to the outside of the dust barrel assembly 10 through the air inlet pipe 14, so that the atmospheric pressure drives the outside air to flow into the dust barrel 11 from the air inlet pipe 14 at a high speed, and flow into the inside of the microporous filter 17 through the micropores on the microporous filter 17. The diameter of the micropores is relatively small, all dust with the particle size of 0.3mm and larger than 0.3mm and part of dust with the particle size of less than 0.3mm can be intercepted by the micropores, and the air passing through the micropores only can contain the dust with the particle size of less than 0.3 mm.

Wherein, the air inlet pipe 14, the guide plate 15, the dust barrel 11, the microporous filter 17 and the gap 16 between the inner wall of the dust barrel 11 and the microporous filter 17 form a primary cyclone which can promote the dust-containing air flow introduced from the air inlet pipe 14 to rotate around the microporous filter 17. The guide plate 15 is used for guiding the airflow to enter along the tangential direction of the periphery of the microporous filter, and then the airflow forms cyclone under the combined action of negative pressure, inertia and the inner wall of the dust barrel.

After passing through the microporous filter 17, the dust-containing air (dust-containing airflow) reaches the air gap 23 in the cyclone cone from the first air inlet 20, and a flow guide mechanism is also arranged in the first air inlet 20 to promote the air to flow along the periphery of the inner tube 22 in a rotating manner to form cyclone, and simultaneously, because of the action of gravity and negative pressure generated by the electric fan 34, the airflow moves at high speed to the lower part of the cyclone cone while rotating, in the process, part of dust in the air flies to the inner wall of the outer cone 21 due to centrifugal action and falls down due to gravity, enters the flow guide pipe 29 through the dust outlet 24 below the outer cone 21, and finally reaches the bottom of the dust barrel 11.

The air rotates at a high speed in the cyclone cone of the secondary cyclone, reaches the second air inlet 25 at the bottom of the inner pipe 22, then enters the second air inlet 25, goes upwards along the inner pipe 22, passes through the inner pipe 22 to reach the filtering air inlet 26 of the air inlet filter 28, impacts the surface of the folded filter paper on the air inlet filter 28, dust is intercepted by the folded filter paper, and the filtered air penetrates through the folded filter paper to reach the hollow cavity 30 of the air inlet filter and then escapes from the top of the hollow cavity 30 to rush to the electric fan.

Effects and effects of the embodiments

According to the dust collection bucket subassembly that this embodiment is related, because including primary cyclone, microporous filter, second grade cyclone and air inlet filter, the second grade cyclone contains two at least cyclone cones, and after the dusty air current carried out first cyclone through primary cyclone and filtered, rethread microporous filter got into the second grade cyclone and carries out second cyclone and filter, gets into air inlet filter at last, and whole dirt gas separation ability of whole dust collection bucket subassembly can show the reinforcing. Compared with the dust collecting barrel adopting a single cyclone filter in the dust collector (CN204016180U) in the prior art, the dust collecting barrel component provided by the utility model can separate more dust from the dust-containing airflow by utilizing the cyclone principle, effectively reduces the dust amount rushing to the air inlet filter, thereby effectively prolonging the service life of the air inlet filter.

In addition, the air inlet filter made of the folding filter paper is adopted in the embodiment, so that the effective filtering area of the air inlet filter is larger, the service life is longer, and higher filtering efficiency can be realized.

In addition, dirt barrel head has the opening, can take out the air inlet filter from the dirt bucket through this opening and clear up to reset the air inlet filter installation through this opening after the clearance is accomplished, it is more convenient that the user used.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims

1. A dust collecting bucket assembly for being arranged on a dust collector to collect dust is characterized by comprising:

a dust bucket for collecting dust;

the dust barrel cover is arranged at the bottom of the dust barrel;

the air inlet pipe is arranged at the front part of the dust barrel, is communicated with the inner cavity of the dust barrel and is used for leading in dust-containing airflow;

the micropore filter is arranged in the dust barrel and is provided with a plurality of micropores for filtering dust-containing airflow and guiding the filtered air to flow towards the axial direction of the dust barrel;

a primary cyclone for causing the dusty gas stream introduced from the air inlet duct to swirl around the microporous filter;

the secondary cyclone is arranged at the downstream of the microporous filter and comprises at least two cyclone cones, and the cyclone cones are used for receiving the air flowing out of the microporous filter and promoting the airflow to rotate in the cyclone cones to form secondary cyclone; and

an air intake filter located at the downstream of the secondary cyclone, used for receiving the air flowing out of the secondary cyclone and transmitting the air to the outside of the dust collecting barrel component, and containing folded filter paper,

wherein the plurality of cyclone cones are arranged along the direction surrounding the air inlet filter, each cyclone cone comprises an outer cone and an inner tube,

the air intake filter is hollow, the top of the air intake filter is provided with an opening, the bottom of the air intake filter is closed,

the bottom of the dust bucket cover is provided with an opening, and the air inlet filter can be extracted from the dust bucket through the opening and also can be arranged back inside the dust bucket through the opening.

2. A dust collecting bucket assembly as set forth in claim 1, in which:

wherein a part of the dust barrel cover is rotatably arranged on the dust barrel,

the dust barrel is provided with a locking and unlocking mechanism which enables the dust barrel cover to be opened or closed relative to the dust barrel.

3. A dust collecting bucket assembly as set forth in claim 1, in which:

wherein, the bottom of the air intake filter is in sealing fit with the secondary cyclone.

4. A kind of dust collector, characterized by: comprising a dust bin assembly as claimed in any one of claims 1-3.