WO2021088172A1

WO2021088172A1 - Dust collection barrel having automatic dust removal function

Info

Publication number: WO2021088172A1
Application number: PCT/CN2019/122745
Authority: WO
Inventors: 崔开学
Original assignee: 苏州倍思环保科技有限公司
Priority date: 2019-11-04
Filing date: 2019-12-03
Publication date: 2021-05-14
Also published as: CN110693386A

Abstract

A dust collection barrel having an automatic dust removal function, provided with at least two or two groups of filters (4). A dust collection and removal reversing valve (20) is provided for each or each group of filters (4); then, a driving device is provided for a combined air door on each dust collection and removal reversing valve (20); each combined air door is switched between a first working position and a second working position in turn under the action of the driving device. In the first working position state, each combined air door opens a dust collection air outlet (24) and closes a dust removal air inlet (22), and in the second working position state, each combined air door closes the dust collection air outlet (24) and opens the dust removal air inlet (22). By means of the solution, dust collection and dust removal are achieved simultaneously, and the dust collection barrel is particularly suitable for industrial scenarios and public places such as hotels and restaurants where the dust collection amount is large and continuous long-time work is needed.

Description

Vacuum bucket with automatic dust removal function

Technical field

The present invention relates to the field of vacuum cleaners, and in particular to a vacuum bucket with an automatic dust cleaning function. The vacuum bucket can automatically clean each filter in turn while vacuuming continuously, and maintain the filtration in the vacuum bucket. The device is always in good working condition.

Background technique

Industrial vacuum cleaners (including medium and large vacuum cleaners used in hotels, restaurants and public places) are commonly used as a supporting or cleaning equipment, mainly used for waste collection in industrial production processes, air filtration and purification, and environmental cleaning. Compared with household vacuum cleaners, industrial vacuum cleaners can be used continuously for 24 hours, have strong suction power, large dust storage volume, long service life, and high temperature resistance.

Industrial vacuum cleaners generally suffer from dust removal problems due to long continuous working time and large dust collection capacity. In order not to reduce work efficiency, there is an automatic dust-cleaning vacuum bucket that uses high-pressure gas to impact the dust surface of the filter on the market. The disadvantage of this vacuum bucket is that it needs an external air source when in use, so its use occasions are greatly restricted.

Chinese patent CN205360858U published a utility model patent named "Self-Dust Vacuum Dust Bucket" on July 6, 2016. In this patent, a motor is vertically arranged inside the filter element, and a filter lever extending to the inner wall of the filter element is arranged under the motor. One end of the filter lever is provided with a lever head, and the other end is connected to the output shaft of the motor through a lever shaft. When the filter element needs to be cleaned and dust removed, the motor drives the filter lever to rotate, and the lever head on the filter lever moves the filter on the filter element, so that the dust attached to the filter is cleaned. Although this technical solution can realize the automatic cleaning of the filter element in the vacuum bucket without disassembly, because there is only one filter element in the vacuum bucket, it cannot take into account the vacuum when cleaning, and it is impossible to achieve automatic cleaning without stopping the vacuum. gray.

In view of this, how to design a vacuuming device that can automatically clean dust without stopping vacuuming is the subject of the present invention.

Summary of the invention

The present invention provides a dust suction bucket with automatic dust removal function, and its purpose is to solve the problem that dust suction and dust removal cannot be taken into account in the existing dust suction device at the same time.

In order to achieve the above objective, the technical solution adopted by the present invention is: a vacuum bucket with automatic dust cleaning function, including a shell, a dust suction port and an air outlet are arranged on the shell, and a first negative pressure chamber is arranged in the shell , The second negative pressure chamber and the filter, the dust suction port is in communication with the first negative pressure chamber, the air outlet is in communication with the second negative pressure chamber, and the first negative pressure chamber is in communication with the second negative pressure chamber through the filter.

Its innovation lies in: the filter is composed of at least two or two groups, each or each group of filters is arranged between the first negative pressure chamber and the second negative pressure chamber, and each or each group of filters is mutually connected A parallel filtering channel is formed on the filtering path of the first negative pressure chamber and the second negative pressure chamber.

For each filter or group of filters, a dust-removing reversing valve is provided. The dust-removing reversing valve has a reversing valve seat. The reversing valve seat is provided with a reversing cavity, and the reversing cavity uses a filter. The center is located on the side of the second negative pressure chamber of the first negative pressure chamber and the second negative pressure chamber; the reversing cavity is a space, and the side walls of the space are respectively provided with a dust suction outlet, A dust-cleaning air inlet and a dust-collecting and dust-removing common port, wherein the dust-collecting and dust-removing common port is in communication with the filter, the dust suction outlet is in communication with the second negative pressure chamber, and the dust-cleaning air inlet is in communication with the housing External connectivity.

A first air baffle door is provided for the dust suction air outlet on each reversing valve seat, and a second air baffle door is provided for the dust removal air inlet on each reversing valve seat. The dampers are fixedly connected by a connecting bracket to form an integral combined damper. The combined damper is rotatably connected with the reversing valve seat, and has two working positions in the rotation direction of the combined damper. In the position state, the combined air door opens the dust suction outlet and closes the dust removal air inlet at the same time. In the second working position, the combined air door closes the dust suction outlet and opens the dust air inlet at the same time.

A driving device is provided for the combined damper on the dust suction and dust removal reversing valve, and each combined damper is alternately switched between the first working position and the second working position under the action of the driving device.

The relevant content in the above technical solution is explained as follows:

1. In the above solution, the shell refers to the outer shell of the dust suction bucket of the present invention.

2. In the above solution, the dust suction port refers to an interface for dust suction. The air outlet refers to an air suction opening or an exhaust air outlet, wherein the meaning of the air suction opening means that the vacuum bucket itself does not have a vacuum motor and a vacuum fan, and the vacuum fan is placed outside the vacuum bucket and connected to the vacuum bucket through a pipe. On the dust suction port, the suction port is under negative pressure in the working state at this time; and the exhaust port means that the suction bucket has its own suction motor and suction fan, and the suction motor and suction fan are set in the suction bucket. At this time, the suction port is under negative pressure in the working state.

3. In the above scheme, in order to be able to simultaneously open and close the dust suction outlet and the dust removal air inlet by rotating, the sealing surface of the dust suction outlet and the sealing surface of the dust removal air inlet are in the same plane around the axis. Rotate in different directions to facilitate the control of the two.

4. In the above solution, the first air baffle door is located on the side of the second negative pressure chamber based on the center of the dust suction air outlet, and the second air baffle door is located on the outside connected to the outside based on the center of the cleaning air inlet. On the other hand, in the working state, the negative pressure formed by the second negative pressure chamber forces the first air baffle door to open the dust suction air outlet, and at the same time forces the second air baffle door to close the dust removal air inlet, so that the combined air door is in the first working position. In the dust removal state, the driving device forces the combined damper to switch from the first working position to the second working position.

5. In the above scheme, the driving device is composed of a motor, a reducer and a paddle. The output shaft of the motor is connected with the input shaft of the reducer in transmission, and the output shaft of the reducer is fixedly connected with the paddle, and the paddle is provided with a toggle. The end, corresponding to the toggle end, is provided with a touch block on the combined damper, and a touch surface is provided on the touch block; all the touch blocks on the combined damper are centered on the paddle rotation axis and are arranged at intervals in the circumferential direction around the paddles , In the working state, the motor drives the paddles to rotate through the reducer, and the toggle ends of the paddles on the rotating path alternately touch the touch blocks on all the combined dampers, so as to keep the vacuum bucket always in a vacuuming state Next, take turns to clean each or each group of filters. The driving device may also be composed of a solenoid valve, the driving end of the solenoid valve is used as a triggering end, and each solenoid valve corresponds to a combined damper.

The design principle of the present invention is: in order to solve the problem that the existing dust suction device cannot take into account the dust suction and dust removal at the same time, the solution is equipped with at least two or two sets of filters, and one dust collector is provided for each or each set of filters. The ash-cleaning reversing valve is provided with a driving device for the combined dampers on the dust-collecting and ash-removing reversing valve. Under the action of the driving device, the combined dampers are alternately switched between the first working position and the second working position. Among them, in the first working position, the combined damper opens the dust suction outlet and closes the dust removal air inlet at the same time. In the second working position, the combined damper closes the dust suction outlet and opens the dust air inlet at the same time.

Compared with the prior art, this solution has the following specific advantages and effects:

1. The invention can work continuously, that is, while vacuuming and cleaning dust, the filter will not be blocked after 24 hours of work, and it can take care of both dust collection and dust removal. It is especially suitable for large dust collection in industries, hotels, restaurants and public places. And need to work continuously for a long time.

2. The dust-removing and dust-removing reversing valve of the present invention has a simple design structure and reliable operation. In particular, it adopts a rotating mode to control the switching of opening and closing of the combined air door, and its design concept is very clever.

3. The driving device of the present invention is composed of a motor, a reducer and a paddle. In order to reliably and effectively control the switching of the opening and closing of the combined damper, the combined damper is specially designed with an elastic arm structure, and a section of inclined plane is also designed on the elastic arm. A touch surface formed by connecting with a circular arc surface. These designs play a positive role in the reliable and effective control of the combination of the air door switching, and at the same time solve the problem of whether the vacuum air outlet is not closed or the vacuum air outlet is dead due to industrial manufacturing errors and wear. Has outstanding substantive characteristics.

4. When the present invention is used, it does not require an external air source, and the applicable places and occasions are more extensive.

Description of the drawings

Figure 1 is a three-dimensional view of the dust suction bucket of this embodiment;

Figure 2 is an exploded view of the dust suction bucket of this embodiment;

Figure 3 is a three-dimensional view of the filter, the reversing valve for dust collection and dust removal and the fixing plate in the dust suction bucket of this embodiment;

Fig. 4 is a top view of the reversing valve for dust collection and dust removal and the fixed plate in the dust collection bucket of this embodiment;

Figure 5 is a three-dimensional view of the motor and the paddles of the vacuum bucket of this embodiment;

Figure 6 is a perspective view of the reversing valve seat of the dust suction bucket of this embodiment;

Fig. 7 is a perspective view of the combined air door of the dust suction bucket of this embodiment;

Figure 8 is a top view of the dust suction bucket of this embodiment;

Fig. 9 is a cross-sectional view taken along the line A-A in Fig. 8;

Figure 10 is a top view of the dust suction bucket of this embodiment;

Fig. 11 is a cross-sectional view taken along line B-B in Fig. 10.

In the above drawings: 1. Dust suction port; 2. Air outlet; 3. Barrel body; 4. Filter; 5. Fixed plate; 6. Seal ring; 7. Upper cover; 8. Top cover; 9. Reversing Valve seat; 10. Motor; 11. Paddle; 12. First air baffle door; 13. Connecting bracket; 14. Second air baffle door; 15. Pin shaft; 16. Elastic arm; 17. Spring; 18. Inclined surface ; 19. Arc surface; 20. Dust removal and dust removal reversing valve; 21. Isolation cavity; 22. Dust removal air inlet; 23. Dust removal and dust removal common port; 24. Dust removal air outlet; 25. Reversing cavity ; 26. The first negative pressure room; 27. The second negative pressure room; 28. Atmospheric pressure room.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

Example: A vacuum bucket with automatic dust cleaning function

Referring to Figures 1-11, the dust suction bucket includes a shell, and the shell is provided with a dust suction port 1 and an air outlet 2 (see Figures 1 and 2), and a first negative pressure chamber 26 and a second negative pressure chamber 26 are provided in the shell. The negative pressure chamber 27 and the filter 4 (see Figure 9), the dust suction port 1 is in communication with the first negative pressure chamber 26 (see Figure 11), and the air outlet 2 is in communication with the second negative pressure chamber 27 (see Figure 11) , The first negative pressure chamber 26 communicates with the second negative pressure chamber 27 through the filter 4 (see FIG. 9).

The shell is composed of a barrel 3, an upper cover 7, a top cover 8 and a fixing plate 5 (see Figure 1). The barrel 3 is a container with an upper end, and the upper cover 7 is a cover with a lower end. The upper cover 7 covers the upper end of the barrel 3, the fixing plate 5 is arranged between the upper cover 7 and the barrel 3 (see Figures 1 and 2), and the outer periphery of the fixing plate 5 is provided with a sealing ring 6 for sealing (see Figure 2). ). On the one hand, the fixing plate 5 is used to fix the filter 4, the dust removal valve 20 and the driving device (see Figure 2), and on the other hand, the internal space formed by the upper cover 7 and the barrel 3 is divided into a lower part The first negative pressure chamber 26 and the second negative pressure chamber 27 at the upper part (see FIG. 9). The top cover 8 covers the top of the upper cover 7, and a normal pressure chamber 28 (see FIG. 9) is provided in the housing. The normal pressure chamber 28 is formed by the space between the top cover 8 and the upper cover 7. It communicates with the ash cleaning air inlet 22 on the reversing valve seat 9 and communicates with the outside of the housing on the other hand. The reversing valve seat 9 is provided with an isolation cavity 21 (see FIG. 6). The isolation cavity 21 is connected to the ash cleaning air inlet 22 on the one hand, and communicates with the atmospheric pressure chamber 28 on the other hand, and finally allows the ash cleaning to enter The tuyere 22 communicates with the atmospheric chamber 28 via the isolation cavity 21 (see Figure 9).

The filter 4 is composed of three (see Figure 3). Each filter 4 is arranged between the first negative pressure chamber 26 and the second negative pressure chamber 27, and each filter 4 is mutually connected in the first negative pressure chamber. The filter path between the pressure chamber 26 and the second negative pressure chamber 27 forms a parallel filter channel.

For each filter 4, a dust-removing and dust-removing reversing valve 20 (see Figure 3) is provided. The dust-removing and dust-removing reversing valve 20 has a reversing valve seat 9 (see FIG. 6), and the reversing valve seat 9 is A reversing chamber 25 is provided, and the reversing chamber 25 is located on the side of the second negative pressure chamber 27 of the first negative pressure chamber 26 and the second negative pressure chamber 27 with the filter 4 as the center. The reversing cavity 25 is a space, and the side walls of the space are respectively provided with a dust suction outlet 24, a dust removal air inlet 22, and a dust removal and dust removal common port 23 (see FIG. 6). The dust suction and dust removal common port 23 is in communication with the filter 4 (see FIG. 9), the dust suction air outlet 24 is in communication with the second negative pressure chamber 27 (see FIG. 11), and the dust removal air inlet 22 is connected to the outside of the housing Connected (see Figure 9).

A first air baffle 12 is provided for the dust suction outlet 24 on each reversing valve seat 9 (see Figure 7), and a second air baffle 14 is provided for the cleaning air inlet 22 on each reversing valve seat 9 (See Figure 7), the first air baffle door 12 and the second air baffle door 14 are fixedly connected by a connecting bracket 13 to form an integral combined air door (see Figure 7), the combined air door is relative to the reversing The valve seat 9 is rotationally connected by a pin shaft 15 (see Figure 7), and has two working positions in the rotation direction of the combined damper. In the first working position, the combined damper opens the dust suction outlet 24 and at the same time cleans The ash air inlet 22 is closed. In the second working position, the combined air door closes the dust suction air outlet 24 and opens the dust cleaning air inlet 22 at the same time.

The sealing surface of the dust suction air outlet 24 and the sealing surface of the dust cleaning air inlet 22 are on the same plane and rotate around the axis in different directions (see FIG. 6). The first damper 12 is located on the side of the second negative pressure chamber 27 based on the center of the dust suction air outlet 24, and the second damper 14 is located on the side of the atmospheric chamber 28 based on the center of the dust removal air inlet 22. In the working state, the negative pressure formed by the second negative pressure chamber 27 forces the first air baffle door 12 to open the dust suction air outlet 24, and at the same time forces the second air baffle door 14 to close the dust removal air inlet 22, so that the combined air door is in the first position. In the working position, the driving device forces the combined damper to switch from the first working position to the second working position in the cleaning state.

When the combined air door is in the first working position, see Fig. 10 and Fig. 11. Pay special attention to the curve in the upper right part of Fig. 11 to indicate the air flow path. At this time, the corresponding filter 4 is in the dust suction working state.

When the combined air door is in the second working position, see Fig. 8 and Fig. 9. Pay special attention to the curve in the upper left part of Fig. 9 to indicate the air flow path. At this time, the corresponding filter 4 is in the dust cleaning state.

A driving device is provided for the combined damper on the dust suction and cleaning reversing valve 20, and each combined damper is alternately switched between the first working position and the second working position under the action of the driving device. In this embodiment, the driving device is composed of a motor 10, a reducer, and a paddle 11 (see Figure 5). The output shaft of the motor 10 is drivingly connected with the input shaft of the reducer, and the output shaft of the reducer is connected to the paddle 11. For a fixed connection, the paddle 11 is provided with a toggle end (see FIG. 5), and corresponding to the toggle end, a touch block is provided on the combined air door, and a touch surface is provided on the touch block. The actuating blocks on all combined dampers are centered on the axis of rotation of the paddle 11, and are arranged at intervals around the paddle 11 in the circumferential direction. In the working state, the motor 10 drives the paddle 11 to rotate through the reducer (see Figure 4). The toggle ends of the upper paddle 11 touch the actuating blocks on all the combined dampers in turn, so as to clean each or each group of filters 4 in turn while keeping the dust suction bucket in a dust-collecting state all the time.

In order to reliably and effectively control the switching of opening and closing of the combined damper, the touch block is an elastic arm 16 (see FIG. 7). The elastic arm 16 is rotatably connected with the combined damper. The elastic arm 16 is connected to the combined damper. There is a spring 17 (see Figure 7). The touch surface is formed by connecting a section of inclined surface 18 and a section of arc surface 19 (see Figure 7). The function of the elastic arm 16 and the spring 17 is to solve the problem that the vacuum air outlet 24 cannot be closed or the vacuum air outlet is topped due to industrial manufacturing errors and abrasion. The inclined surface 18 is designed to close the door quickly. A slow door closing speed will cause the vacuum bucket to be in a state of pressure loss or air leakage. This state is unfavorable to the normal operation of the vacuum bucket and should be minimized. The arc surface 19 is designed to keep the door closed. After the arc surface 19 ends, a vacancy will appear. This vacancy will quickly open the dust suction outlet 24 and switch from the dust removal state to the dust suction state.

The following descriptions will be made regarding other implementations and structural changes of the present invention:

1. In the above embodiment, the filter 4 is composed of three. However, the present invention is not limited to this, and the number of filters 4 can be two, four, five, or even more. This is understood by those skilled in the art, and the essential condition is that it consists of at least two filters 4. In addition, the filters 4 can be designed in the form of groups, each group is equivalent to an independent unit, and each group is composed of at least two filters. This is understood by those skilled in the art.

2. In the above embodiment, the driving device is composed of a motor 10, a reducer and a paddle 11 (see Figure 5). However, the present invention is not limited to this, and the driving device may have other structural forms. For example, the driving device is composed of a solenoid valve, the driving end of the solenoid valve is used as the triggering end, and each solenoid valve corresponds to a combined damper.

3. In the above embodiment, the shell is composed of a barrel 3, an upper cover 7, a top cover 8 and a fixing plate 5 (see Figure 1). However, the present invention is not limited to this, and may have other structural forms. The shell essentially refers to the outer shell of the dust suction bucket.

4. In the above embodiments, the dust suction bucket does not include a dust suction motor and a dust suction fan. However, the present invention is not limited to this, and the dust suction motor and the dust suction fan can also be designed on the dust suction bucket. This is understood by those skilled in the art.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those familiar with the technology to understand the content of the present invention and implement them accordingly, and should not limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

A dust-collecting bucket with automatic dust cleaning function, comprising a shell, a dust suction port (1) and an air outlet (2) are arranged on the shell, and a first negative pressure chamber (26) and a second negative pressure chamber (26) are arranged in the shell. The pressure chamber (27) and the filter (4), the dust suction port (1) is in communication with the first negative pressure chamber (26), the air outlet (2) is in communication with the second negative pressure chamber (27), the first A negative pressure chamber (26) communicates with a second negative pressure chamber (27) through a filter (4);

It is characterized in that: the filter (4) is composed of at least two or two groups, each or each group of filters (4) are arranged in the first negative pressure chamber (26) and the second negative pressure chamber (27) And each or groups of filters (4) form parallel filtering channels on the filtering paths of the first negative pressure chamber (26) and the second negative pressure chamber (27);

A dust-removing directional valve (20) is provided for each filter or group of filters (4). The dust-removing directional valve (20) has a reversing valve seat (9) and a reversing valve seat ( 9) is provided with a reversing cavity (25), the reversing cavity (25) is located in the second of the first negative pressure chamber (26) and the second negative pressure chamber (27) centered on the filter (4) One side of the negative pressure chamber (27); the reversing cavity (25) is a space, and the side walls of the space are respectively provided with a dust suction outlet (24), a cleaning air inlet (22) and a suction The common dust removal port (23), wherein the common dust removal port (23) is connected to the filter (4), the dust suction outlet (24) is connected to the second negative pressure chamber (27), and the dust removal common port (23) is connected to the filter (4). The air inlet (22) communicates with the outside of the casing;

A first air baffle (12) is provided for the dust suction outlet (24) on each reversing valve seat (9), and a second air inlet (22) is provided for the cleaning air inlet (22) on each reversing valve seat (9). The second air baffle door (14), the first air baffle door (12) and the second air baffle door (14) are fixedly connected by a connecting bracket (13) to form an integral combined air door, and the combined air door is opposite to It is rotatably connected to the reversing valve seat (9), and has two working positions in the rotation direction of the combined damper. In the first working position, the combined damper opens the dust suction outlet (24) and simultaneously removes the dust The air outlet (22) is closed. In the second working position, the combined air door closes the dust suction outlet (24) and opens the dust removal air inlet (22) at the same time;

A driving device is provided for the combined damper on the dust suction and cleaning reversing valve (20), and each combined damper is alternately switched between the first working position and the second working position under the action of the driving device.
The dust suction bucket according to claim 1, wherein the sealing surface of the dust suction air outlet (24) and the sealing surface of the dust cleaning air inlet (22) are on the same plane and rotate around the axis in different directions.
The dust suction bucket according to claim 1, characterized in that: the first air baffle door (12) is located on the side of the second negative pressure chamber (27) based on the center of the dust suction air outlet (24), and the first air baffle door (12) is located on the side of the second negative pressure chamber (27). The second air baffle (14) is located on the externally connected side based on the center of the cleaning air inlet (22). In the working state, the negative pressure formed by the second negative pressure chamber (27) forces the first air baffle (12) to ) Open the dust suction outlet (24), and at the same time force the second damper (14) to close the dust removal inlet (22), so that the combined damper is in the first working position. In the dust removal state, the driving device forces the combined damper from the first position One working position is switched to the second working position.
The dust suction bucket according to claim 1, characterized in that: a normal pressure chamber (28) is provided in the shell, and the normal pressure chamber (28) on the one hand and the dust removal on the reversing valve seat (9) The air inlet (22) communicates with the outside of the casing on the other hand.
The dust suction bucket according to claim 4, characterized in that: the reversing valve seat (9) is provided with an isolation cavity (21), and the isolation cavity (21) is in communication with the ash cleaning air inlet (22) on the one hand , On the other hand, it communicates with the atmospheric chamber (28).
The dust suction bucket according to claim 5, characterized in that: the casing includes a bucket body (3), an upper cover (7) and a top cover (8), and the bucket body (3) is a container with an upper end still open. , The upper cover (7) is a cover with a mouth at the lower end, the upper cover (7) covers the upper end of the barrel (3), and a fixing plate (5) is provided between the upper cover (7) and the barrel (3) , The fixing plate (5) is used to fix or install the filter (4), the dust removal valve (20) and the driving device on the one hand, and on the other hand the upper cover (7) and the barrel (3) are formed The internal space is divided into a first negative pressure chamber (26) at the lower part and a second negative pressure chamber (27) at the upper part; the top cover (8) covers the top of the upper cover (7), and the atmospheric chamber (28) is formed by the space between the top cover (8) and the upper cover (7), and the ash cleaning air inlet (22) communicates with the atmospheric chamber (28) through the isolation cavity (21).
The vacuum cleaner bucket according to claim 1, characterized in that: the driving device is composed of a motor (10), a reducer and a paddle (11), and the output shaft of the motor (10) is drivingly connected with the input shaft of the reducer , The output shaft of the reducer is fixedly connected with the paddle (11), the paddle (11) is provided with a toggle end, corresponding to the toggle end, a touch block is provided on the combined damper, and a touch surface is provided on the touch block ; All the touch blocks on the combined air door are centered on the rotation axis of the paddle (11) and are arranged at intervals around the paddle (11) in the circumferential direction. In the working state, the motor (10) drives the paddle (11) to rotate through the reducer , In the rotating path, the toggle ends of the paddles (11) alternately touch the actuating blocks on all the combined air doors, so as to keep the dust suction bucket always in a dust-absorbing state, and filter each or each group in turn (4) for cleaning.
The vacuum cleaner bucket according to claim 7, characterized in that: the touch block is an elastic arm (16), the elastic arm (16) is rotatably connected or movably connected with the combined damper, and the elastic arm (16) is connected with the combined damper. A spring (17) is arranged between the air doors.
The dust suction bucket according to claim 7, characterized in that: the touch surface is formed by connecting a section of inclined surface (18) and a section of arc surface (19).
The dust suction bucket according to claim 1, wherein the driving device is composed of a solenoid valve, the driving end of the solenoid valve is used as a triggering end, and each solenoid valve corresponds to a combined damper.