CN102048496B - Cyclone dust removal device for wet and dry dual-purpose dust collector - Google Patents

Abstract

The invention discloses a cyclone dust removal device for wet and dry vacuum cleaners, which comprises primary and secondary cyclone separators connected in series, and respectively connected with first and second dust outlets on the primary and secondary cyclone separators The primary and secondary dust buckets. The wet and dry vacuum cleaner cyclone dust removal device provided by the present invention can fully filter the dust-containing gas due to the installation of the primary and secondary cyclone separators connected in series, which greatly improves the dust removal efficiency and dust removal effect of the vacuum cleaner .

Description

Wet and dry vacuum cleaner cyclone dust removal device

technical field

The invention relates to a cyclone dust removal device for a wet and dry vacuum cleaner.

Background technique

Existing wet and dry vacuum cleaners include a dust collection barrel and a motor cover located above the dust collection barrel. The motor cover is usually provided with a filter bag for filtering dust, but the filter bag cannot be reused and will be used for a period of time. It is easy to cause the suction to drop, resulting in low dust removal efficiency, poor effect and not conducive to environmental protection.

Contents of the invention

The object of the present invention is to provide a cyclone dust removal device for a wet and dry vacuum cleaner with high dust removal efficiency and good effect.

The first technical solution of the present invention is: a wet and dry dual-purpose vacuum cleaner cyclone dust removal device, which is characterized in that it includes the first and second cyclone separators connected in series, and the first and second cyclone separators respectively connected to the first and second cyclone separators. One is the primary and secondary dust collecting barrels connected with the second dust outlet.

The first and second cyclone separators described in the present invention are further fixed side by side on the middle plate horizontally, and the middle plate is fixed on the upper part of the bucket body of the first-level dust collecting barrel, and the middle plate is respectively equipped with corresponding first and second cyclone separators. For the first and second ash outlets of the dust outlet, the secondary dust collection bucket is at least partly located in the primary dust collection bucket.

The bottom of the bucket body of the secondary dust collection bucket described in the present invention is further provided with a detachable bottom cover. When the vacuum cleaner is working, the bottom cover is attached to the bucket body to store ash; The barrel body is separated to make dust fall into the first-stage dust collection barrel, and the upper part of the barrel body of the second-stage dust collection barrel is fixed with the middle plate.

In the present invention, the bottom cover is preferably tapered to facilitate ash falling, and a bottom cover guiding mechanism cooperating with the bottom cover is fixed inside the first-stage dust collecting barrel.

The design of the bottom cover and the guide mechanism is as follows: a number of guide grooves are provided on the periphery of the bottom cover, and the guide mechanism of the bottom cover is a columnar guide cover. The guide ribs make the bottom cover and the bucket body of the secondary dust collection bucket always tightly sucked together without misalignment.

The main body of the guide cover in the present invention is a non-closed grid-shaped cover body surrounded by several straight-edge strips and several ring-shaped side strips, and the guide ribs are formed inside the straight-edge strips. The center of the main body is further fixed with a positioning cylinder, and the positioning cylinder cooperates with a positioning ring fixed on the bottom of the bottom cover to position the bottom cover.

The first air inlet, the first air outlet and the first dust outlet are opened on the side wall of the first-stage cyclone separator in the present invention, and the inside is provided with a first conical filter screen cover that communicates with each other. The first cyclone chamber and the first air outlet chamber, the first air inlet and the first dust outlet are all communicated with the first cyclone chamber, and the first air outlet is communicated with the first outlet chamber; similarly, the two The first-stage cyclone separator is provided with a second air inlet, a second air outlet, and the second dust outlet, and its interior is provided with a second cyclone chamber and a second air outlet that communicate with each other through a second conical filter screen cover. cavity, the second air inlet and the second dust outlet communicate with the second cyclone cavity, while the second air outlet communicates with the second air outlet cavity; the first air outlet communicates with the second air inlet through the air duct connected.

In the present invention, the first air inlet further extends inwards with a first arc-shaped guide partition, and the horizontal and vertical length L1 from the front end of the first arc-shaped guide partition to the inner wall of the first-stage cyclone separator is greater than that of the first-stage cyclone separator. The radius R1 of the cyclone separator; also the second air inlet further extends inwards with a second arc-shaped guide partition, and the front end of the second arc-shaped guide partition reaches the level of the inner wall of the secondary cyclone separator. The length L2 is greater than the radius R2 of the secondary cyclone.

The second technical solution of the present invention is: a dry and wet dual-purpose vacuum cleaner, comprising a first-stage dust collection barrel and a middle plate arranged on the first-stage dust collection barrel, wherein a vacuum motor is arranged above the middle plate, and the A cyclone separator is also arranged above the middle plate, and the cyclone separator is connected with the primary dust collection barrel through the first dust outlet.

The present invention further includes a secondary cyclone separator connected in series with the cyclone separator, which is connected to the secondary dust collection barrel through the second dust outlet, the secondary cyclone separator is parallel or perpendicular to the cyclone separator, and the secondary cyclone separator is parallel to or perpendicular to the cyclone separator. The first-level dust collection bucket is at least partly located in the first-level dust collection bucket.

The present invention is specifically installed in a wet and dry vacuum cleaner, and a vacuum motor and a Hypa filter are further installed on the board, and the second air outlet on the secondary cyclone separator is connected with the Hypa filter through the Hypa filter. The vacuum motor is connected. After the vacuum cleaner is powered on, the dust-containing gas sucked from the front of the vacuum cleaner first enters the first-stage cyclone separator through the first air inlet on the first-stage cyclone separator to filter out coarse ash, and the coarse ash falls to the first-stage dust collection bucket The gas enters the secondary cyclone separator through the air duct to filter the fine ash, and the fine ash falls into the secondary dust collection bucket, and the gas then comes out from the second air outlet and enters the vacuum motor through the Hypa filter , and finally discharged from the end of the vacuum motor. During this process, due to the negative pressure generated on the upper part of the bottom cover when the vacuum motor is working, the bottom cover can be tightly attracted to the barrel body of the secondary dust collection bucket to accommodate fine ash; The negative pressure generated on the upper part of the bottom cover is eliminated, and the bottom cover will automatically fall down immediately, so that the fine ash in the secondary dust collection bucket slides from the bottom cover to the primary dust collection bucket.

The existing cyclone separator generally does not have an inward arc-shaped guide partition on the air inlet, or only extends a small section of convex ribs inward on the air inlet. The problem caused is: when this cyclone separates When the vacuum cleaner is installed on a wet and dry vacuum cleaner, the dust-laden gas (entraining a large amount of water) entering from the air inlet will fall vertically due to the effect of gravity, and cannot participate in the cyclone separation process, which not only greatly reduces the cyclone separator The cyclone separation ability; and these falling dust will even block the conical filter screen cover, so that the cyclone separator cannot work normally.

However, in the present invention, due to the existence of the first arc-shaped guide partition, the dust-containing gas (entraining a large amount of water) entering the first-stage cyclone separator from the first air inlet will be completely guided by the first arc-shaped guide partition. Participating in the cyclone separation process without falling in advance, which greatly improves the cyclone separation capacity and effectively prevents the first conical filter screen cover from being blocked. Similarly, due to the existence of the second arc-shaped guide partition, the dust-laden gas (entraining a large amount of water) entering the secondary cyclone separator from the second air inlet will all participate in the cyclone under the guidance of the second arc-shaped guide partition. The separation process will not fall in advance, which greatly improves the cyclone separation capacity and effectively prevents the second conical filter screen cover from being blocked.

Advantage of the present invention is:

1. The wet and dry vacuum cleaner cyclone dust removal device provided by the present invention can fully filter the dusty gas due to the installation of the first and second cyclone separators connected in series, which greatly improves the dust removal efficiency and the dust removal efficiency of the vacuum cleaner. Dust removal effect.

2. In the wet and dry vacuum cleaner cyclone dust removal device provided by the present invention, since the secondary dust collection bucket can automatically dump dust into the primary dust collection bucket, it is convenient for the user to clean and simplifies the cleaning operation of the user.

3. In the cyclone dust removal device for vacuum cleaner provided by the present invention, the first air inlet of the first-stage cyclone separator and the second air inlet of the second-stage cyclone separator are further provided with inward first and second arcs respectively. Shaped guide partitions are used to guide the dust-laden gas and water to participate in the cyclone separation process, thereby further improving the cyclone separation capacity of the two cyclone separators, and effectively preventing the first conical filter screen cover and the second conical Occurrence of filter cover clogging.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is the three-dimensional exploded structural representation of the present invention (omitting motor and Hypa filter);

Fig. 2 is a schematic structural view of the three-dimensional assembled state of the present invention;

Fig. 3 is a schematic diagram of the working state of the primary and secondary cyclone separators in the present invention;

Fig. 4 is a schematic diagram of the first working state of the secondary dust collecting bucket in the present invention;

Fig. 5 is a schematic diagram of the second working state of the secondary dust collecting bucket in the present invention;

Fig. 6 is the schematic cross-sectional view of the air inlet state of the existing cyclone separator;

Fig. 7 is a cross-sectional schematic view of the air inlet state of the primary cyclone separator in the present invention;

Fig. 8 is a schematic cross-sectional view of the air inlet state of the secondary cyclone separator in the present invention.

Among them: 1. Primary cyclone separator 101, first air inlet; 102, first air outlet 103, first dust outlet; 104, first conical filter screen cover; 105, first arc guide partition 2 201, the second air inlet; 202, the second air outlet; 203, the second dust outlet; 204, the second conical filter screen cover; 205, the second arc guide partition; 3 , first-level dust collection bucket 4, second-level dust collection bucket; 5, bottom cover; 51, positioning ring; 501, guide groove; 6, middle plate; , guide cover; 71, straight edge strip 72, annular edge strip; 73, positioning cylinder; 701, guide rib 8, vacuum motor; 9, Hypa filter; 10, air guide pipe; 11, cyclone separator ( Existing); 11a, air inlet 11b, convex rib 11c, conical filter screen cover.

Detailed ways

Embodiment: First, as shown in Fig. 1, Fig. 2 and Fig. 3, in the cyclone dust removal device for wet and dry vacuum cleaner provided by this embodiment, the primary cyclone separator 1 and the secondary cyclone separator 2 are connected in series And horizontally fixed side by side on the middle plate 6, also can adopt the vertical secondary cyclone separator and the horizontal primary cyclone separator to fix on the middle plate 6, or arrange the cyclone separator horizontally under the middle plate 6 , and the middle plate 6 is fixed on the upper part of the bucket body of the first-level dust collection bucket 3; the second-level dust collection bucket 4 is located in the first-level dust collection bucket 3. The first air inlet 101, the first air outlet 102 and the first dust outlet 103 are arranged on the side wall of the first-stage cyclone separator 1, and the first conical filter screen cover 104 is arranged inside it. The connected first cyclone chamber and the first air outlet chamber, the first air inlet 101 and the first dust outlet 103 communicate with the first cyclone chamber, and the first air outlet 102 communicates with the first air outlet chamber; similarly, The secondary cyclone separator 2 is provided with a second air inlet 201 , a second air outlet 202 and the second dust outlet 203 , and the inside thereof is provided with a second conical filter screen cover 204 communicating with each other. Two cyclone chambers and a second air outlet chamber, the second air inlet 201 and the second dust outlet 203 communicate with the second cyclone chamber, while the second air outlet 202 communicates with the second air outlet chamber; the first The air outlet 102 is connected to the second air inlet 201 through the air duct 10 . The middle plate 6 is respectively provided with first and second ash outlets 601, 602 corresponding to the first and second dust outlets 103, 203, and the primary dust collecting bucket 3 is connected to the first dust outlet 601 through the first ash outlet. The dust outlet 103 is connected to each other, and the secondary dust collecting bucket 4 is connected to the second dust outlet 203 through the second dust outlet 602 .

The bottom of the bucket body of the secondary dust collection bucket 4 described in this embodiment is provided with a detachable bottom cover 5, and the bottom cover 5 is conical; 6 fixed. Moreover, in this embodiment, a bottom cover guiding mechanism cooperating with the bottom cover 5 is also fixed in the primary dust collecting barrel 3 . Specifically as shown in Figure 1, the periphery of the bottom cover 5 is provided with several guide grooves 501, and the guide mechanism of the bottom cover is a columnar guide cover 7, the main body of the guide cover 7 is composed of several straight strips 71 and several The non-closed grid-shaped cover surrounded by the ring-shaped side strips 72 , the inner side of the straight side strips 71 is formed with guide ribs 701 that cooperate with the guide grooves 501 to limit the longitudinal movement of the bottom cover 5 . As shown in Fig. 4 and Fig. 5 again, a positioning cylinder 73 is also fixed at the center of the guide cover 7 main body, and a positioning ring 51 cooperating with the positioning cylinder 73 is fixed at the bottom of the bottom cover 5; 5. When falling, the limiting cylinder 73 extends into the positioning ring 51 so as to position the bottom cover 5.

Further in conjunction with Fig. 2, Fig. 3, Fig. 4 and Fig. 5, when this embodiment is installed in a vacuum cleaner, a vacuum motor 8 and a Hypa filter 9 are further installed on the middle plate 6. In this embodiment, the vacuum The motor 8 is located above the middle plate 6 , and may also be arranged below the middle plate 6 . The second air outlet 202 on the secondary cyclone separator 2 is connected to the vacuum motor 8 through the Hypa filter 9 . After the vacuum cleaner is powered on, the dusty gas inhaled from the front of the vacuum cleaner first enters the primary cyclone separator 1 through the first air inlet 101 on the primary cyclone separator 1 to filter the coarse ash, and the coarse ash falls to the first stage. In the dust collecting barrel 3, the gas enters the secondary cyclone separator 2 through the air guide pipe 10 to filter the fine ash, and the fine ash falls into the secondary dust collecting barrel 4, and the gas then comes out from the second air outlet 202 through the The Hypa filter 9 enters the vacuum motor 8 and is finally discharged from the end of the vacuum motor 8 . During this process, the negative pressure generated on the top of the bottom cover 5 when the vacuum motor 8 is working forces the bottom cover 5 to be tightly attached to the barrel body of the secondary dust collection bucket 4 to accommodate the fine ash, as shown in Figure 4; and once When the power of the vacuum cleaner is disconnected, the bottom cover 5 will automatically fall down immediately due to the elimination of the negative pressure generated by the vacuum motor 8 on the top of the bottom cover 5, so that the fine dust in the secondary dust collection bucket 4 will slide from the bottom cover 5 to the primary collector. Inside the dust bucket 3, as shown in Figure 5 specifically.

Since the bottom cover 5 in this embodiment is tapered, it is convenient for dust to fall. And in the process of the bottom cover 5 and the barrel body of the secondary dust collection bucket 4 being sucked together, due to the vertical guiding effect of the guide cover 7, the bottom cover 5 and the secondary dust collection bucket 4 will not be dislocated, but always Adhere tightly.

In the existing cyclone separator 11, the air inlet 11a is generally not provided with an inward arc-shaped guide partition, or as shown in Figure 6, only a small section of convex rib 11b is extended inward on the air inlet 11a , the resulting problem is: when this cyclone separator 11 is installed on a wet and dry vacuum cleaner for use, the dusty gas (entraining a large amount of water) entering from the air inlet 11a will fall vertically due to the effect of gravity , but unable to participate in the cyclone separation process, not only greatly reduces the cyclone separation capacity of the cyclone separator 11; and these falling dust will even block the conical filter screen cover 11c, so that the cyclone separator 11 cannot work normally.

And in the present invention, above-mentioned situation has been improved, specifically as shown in Fig. 7, Fig. 8, the sidewall of primary cyclone separator 1 tangentially offers first air inlet 101, and this first air inlet 101 faces upwards A first arc-shaped guide partition 105 extends inside, and the horizontal and vertical length L1 from the front end of the first arc-shaped guide partition 105 to the inner wall of the primary cyclone separator 1 is greater than the radius R1 of the primary cyclone separator 1 . Similarly, the side wall of the secondary cyclone separator 2 is tangentially opened with a second air inlet 201, and a section of second arc guide partition 205 extends inwardly on the second air inlet 201, and the second arc guide The horizontal and vertical length L2 from the front end of the partition plate 205 to the inner wall of the secondary cyclone separator 2 is greater than the radius R2 of the secondary cyclone separator 2 .

Due to the existence of the first arc-shaped guide partition 105, the dusty gas (entraining a large amount of water) entering the first-stage cyclone separator 1 from the first air inlet 101 will all participate under the guidance of the first arc-shaped guide partition 105. The cyclone separation process will not fall in advance, which greatly improves the cyclone separation capacity of the first-stage cyclone separator 1, and effectively prevents the first conical filter screen cover 104 from being blocked. Equally, due to the existence of the second arc guide partition 205, the dusty gas (entraining a large amount of water) entering the secondary cyclone separator 2 from the second air inlet 201 will be guided by the second arc guide partition 205. All of them participate in the cyclone separation process without falling in advance, which greatly improves the cyclone separation capacity of the secondary cyclone separator, and effectively prevents the second conical filter screen cover 204 from being blocked.

It can be known from the above embodiments that the wet and dry vacuum cleaner cyclone dust removal device of the present invention can fully filter the dusty gas due to the installation of the first and second cyclone separators connected in series, which greatly improves the efficiency of the vacuum cleaner. Dust removal efficiency and dust removal effect. Simultaneously, because the secondary dust collecting bucket can dump dust into the primary dust collecting bucket automatically, it is convenient for the user to clean and simplifies the cleaning operation of the user. Moreover, the present invention further improves the cyclone separation capacity of the two cyclone separators, and effectively prevents the clogging of the first conical filter screen cover 104 and the second conical filter screen cover 204 . Of course, in order to simplify the structure, the dust removal device can also adopt a single cyclone separator, which can also achieve the purpose of the present invention.

Of course, the above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A wet and dry dual-purpose vacuum cleaner cyclone dust removal device is characterized in that it at least includes a series-connected primary and secondary cyclone separators (1, 2), and is connected with the primary and secondary cyclone separators (1, 2) respectively. ) connected to the first and second dust outlets (103, 203) on the primary and secondary dust collection buckets (3, 4), wherein the bottom of the bucket body of the secondary dust collection bucket (4) is provided with detachable The bottom cover (5), when the vacuum cleaner is working, the bottom cover (5) is attracted to the barrel to store the dust, and when the vacuum cleaner is not working, the bottom cover (5) is separated from the barrel so that the dust falls into the first stage Inside the dust bucket (3). 2. The wet and dry vacuum cleaner cyclone dust removal device according to claim 1, characterized in that the first and second cyclone separators (1, 2) are fixed side by side on the middle plate (6) horizontally, and the middle plate (6) It is fixed on the upper part of the bucket body of the primary dust collection bucket (3), and the first and second dust falling outlets corresponding to the first and second dust outlets (103, 203) are respectively provided on the middle plate (6). ports (601, 602), and the secondary dust collection bucket (4) is at least partly located in the primary dust collection bucket (3). 3. The wet and dry vacuum cleaner cyclone dust removal device according to claim 2, characterized in that the upper part of the barrel body of the secondary dust collection barrel (4) is fixed to the middle plate (6). 4. The wet and dry vacuum cleaner cyclone dust removal device according to claim 3, characterized in that the bottom cover (5) is conical, and the same bottom cover (5) is fixed inside the first-stage dust collecting bucket (3). ) with the bottom cover guide mechanism. 5. The wet and dry vacuum cleaner cyclone dust removal device according to claim 4, characterized in that a number of guide grooves (501) are provided on the periphery of the bottom cover (5), and the guide mechanism of the bottom cover is a columnar guide The cover (7), the guide cover (7) is provided with guide ribs (701) that cooperate with the guide groove (501) to limit the longitudinal movement of the bottom cover (5). 6. The wet and dry dual-purpose vacuum cleaner cyclone dust removal device according to claim 2, characterized in that a first air inlet (101), a first air outlet ( 102) and the first dust outlet (103), and its inside is provided with the first cyclone chamber and the first air outlet chamber communicated with each other through the first conical filter screen cover (104), the first air inlet (101) and the first dust outlet (103) are all communicated with the first cyclone cavity, and the first air outlet (102) is then communicated with the first air outlet cavity; similarly, on the secondary cyclone separator (2) A second air inlet (201), a second air outlet (202) and the second dust outlet (203) are opened, and a second air outlet connected to each other via a second conical filter screen cover (204) is provided inside. The cyclone chamber and the second air outlet chamber, the second air inlet (201) and the second dust outlet (203) communicate with the second cyclone chamber, while the second air outlet (202) communicates with the second air outlet chamber ; The first air outlet (102) is connected to the second air inlet (201) through the air duct (10). 7. The wet and dry vacuum cleaner cyclone dedusting device according to claim 6, characterized in that a vacuum motor (8) and a Hypa filter (9) are installed on the middle plate (6), and the secondary cyclone The second air outlet (202) on the separator (2) is connected with the vacuum motor (8) through the Hypa filter (9). 8. The wet and dry vacuum cleaner cyclone dust removal device according to claim 6, characterized in that a first arc-shaped guide partition (105) extends inwardly from the first air inlet (101), and the first The horizontal and vertical length L1 from the front end of an arc-shaped guide partition (105) to the inner wall of the first-stage cyclone separator (1) is greater than the radius R1 of the first-stage cyclone separator (1); also on the second air inlet (201) There is a section of second arc-shaped guide partition (205) extending inward, and the horizontal and vertical length L2 from the front end of the second arc-shaped guide partition (205) to the inner wall of the secondary cyclone separator (2) is greater than that of the secondary cyclone separator. The radius R2 of the device (2). 9. A wet and dry vacuum cleaner, comprising a first-stage dust collection barrel (3) and a middle plate (6) arranged above the first-level dust collection barrel (3), wherein the middle plate (6) is provided with a vacuum The motor (8) is characterized in that: the middle plate (6) is also provided with at least one cyclone separator (1), and a secondary cyclone separator (2) connected in series with the cyclone separator (1), The cyclone separator (1) is connected to the primary dust collecting barrel (3) through the first dust outlet (103), and the secondary cyclone separator (2) is connected to the secondary dust collecting bucket (3) through the second dust outlet (203). The dust barrel (4) is connected, wherein the bottom of the barrel body of the secondary dust collecting barrel (4) is provided with a detachable bottom cover (5). When the vacuum cleaner is working, the bottom cover (5) is attracted to the barrel body to Store ash, and when vacuum cleaner does not work, this bottom cover (5) separates with staving and makes dust fall in the primary dust collecting barrel (3). 10. The wet and dry vacuum cleaner according to claim 9, characterized in that: the secondary cyclone separator (2) is parallel or perpendicular to the cyclone separator (1), and the secondary dust collecting bucket (4) Then it is at least partly located in the primary dust collecting bucket (3).

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