WO2022268199A1

WO2022268199A1 - Floor brush assembly and handheld vacuum cleaner

Info

Publication number: WO2022268199A1
Application number: PCT/CN2022/101077
Authority: WO
Inventors: 薛永升; 阮涛; 许颖华; 陈鹏; 胡斯特
Original assignee: 广东美的白色家电技术创新中心有限公司; 美的集团股份有限公司
Priority date: 2021-06-25
Filing date: 2022-06-24
Publication date: 2022-12-29

Abstract

Disclosed in the present application are a floor brush assembly and a handheld vacuum cleaner. The floor brush assembly comprises a floor brush body and a nozzle assembly. An accommodating cavity having an opening, and a dust suction port in communication with the accommodating cavity are formed in the floor brush body. The nozzle assembly comprises a plurality of cyclone nozzles, and the nozzle assembly is arranged on the floor brush body, wherein air outlets of the cyclone nozzles are provided facing the opening, and the cyclone nozzles are configured to enable a passing airflow to be in a cyclone state. The present application improves the dust removal efficiency, and reduces damage to a carpet.

Description

Floor brush assembly and hand-held vacuum cleaner

This application claims the priority of the Chinese patent application with application number 2021107132533 filed on June 25, 2021 and titled "Floor Brush Assembly and Handheld Vacuum Cleaner", which is fully incorporated by reference into this application.

This application claims the priority of the Chinese patent application with the application number 2021214398433 and the utility model name "floor brush assembly and hand-held vacuum cleaner" filed on June 25, 2021, which is fully incorporated into this application by reference.

【Technical field】

The present application relates to the technical field of home appliances, in particular to a floor brush assembly and a hand-held vacuum cleaner.

【Background technique】

The working principle of the vacuum cleaner is to form a vacuum inside, and the dust is sucked into the vacuum cleaner under the action of the air pressure difference, so as to achieve the purpose of cleaning. When using a vacuum cleaner to remove dust from the carpet, it is difficult to separate the dust from the carpet for the dust embedded in the carpet.

Current common way is to utilize hairbrush to clean carpet, thereby dust is stripped off, so long-term service can cause damage to carpet.

【Content of invention】

The application provides a floor brush assembly and a hand-held vacuum cleaner to solve the technical problem that the existing vacuum cleaner has low dust removal efficiency and is easy to cause damage to the carpet when cleaning carpets.

In order to solve the above technical problems, a technical solution adopted by the present application is: the ground brush assembly includes: the ground brush body, the ground brush body forms an accommodation chamber with an opening, and a dust suction port communicating with the accommodation chamber; the nozzle assembly, the nozzle assembly includes multiple A cyclone nozzle, the nozzle assembly is arranged on the ground brush body, wherein, the air outlet of the cyclone nozzle is arranged towards the opening; and the cyclone nozzle is arranged so that the air flow passing through forms a state of a cyclone.

According to an embodiment of the present application, the cyclone nozzle includes an air guide part and a nozzle part, the nozzle part is conical, the air guide part communicates with the nozzle part, and the airflow of the air guide part enters the nozzle part along the radial direction of the nozzle part.

According to an embodiment of the present application, the nozzle part includes an air inlet end and an air outlet end, the size of the air inlet end is larger than that of the air outlet end, and the air guide part is disposed at the air inlet end of the nozzle part.

According to an embodiment of the present application, the cyclone nozzle is arranged obliquely toward the dust suction port in a direction from the air inlet to the air outlet.

According to an embodiment of the present application, a plurality of cyclone nozzles are arranged to form a single row or multiple rows.

According to an embodiment of the present application, the multiple rows of cyclone nozzles are all located on the same side of the dust suction opening, or the multiple rows of cyclone nozzles are respectively located on opposite sides of the dust suction opening.

According to an embodiment of the present application, the nozzle assembly further includes an air inlet structure, the air inlet structure forms an air inlet chamber, and the air inlet of the cyclone nozzle communicates with the air inlet chamber.

According to an embodiment of the present application, the rows of cyclone nozzles are respectively located on opposite sides of the dust suction opening, and the number of air inlet structures is two, which are respectively connected to the cyclone nozzles on opposite sides of the dust suction opening.

According to an embodiment of the present application, the air inlet structure is formed with at least two spaced air inlet cavities, and the plurality of cyclone nozzles are divided into at least two groups of cyclone nozzles in the arrangement direction, and the air inlet of each group of cyclone nozzles is connected to one air inlet. cavity.

According to an embodiment of the present application, the ground brush assembly further includes at least two fans, and the fan outlet of each fan is connected to an air inlet cavity.

According to an embodiment of the present application, the floor brush body is formed with an air inlet hole communicating with the accommodation chamber; the floor brush assembly further includes a fan, the fan is arranged in the accommodation chamber, and the fan outlet of the fan is connected to the air inlet of the cyclone nozzle.

According to an embodiment of the present application, the ground brush assembly further includes a running mechanism, which is arranged on the ground brush body for moving the ground brush body.

According to an embodiment of the present application, the traveling mechanism includes four universal traveling wheels and four driving motors, and each universal traveling wheel is connected to a driving motor; the four universal traveling wheels are arranged in pairs.

In order to solve the above-mentioned technical problems, another technical solution adopted by the present application is: a hand-held vacuum cleaner, which includes the above-mentioned ground brush assembly.

According to an embodiment of the present application, the handheld vacuum cleaner includes: a dust suction pipe connected to the ground brush assembly and connected to the dust suction port; .

According to an embodiment of the present application, the air exhaust port of the vacuum main unit communicates with the nozzle assembly.

The beneficial effects of the present application are: the cyclone nozzle makes the airflow form a cyclone state, because the air outlet of the cyclone nozzle is set towards the opening, so that the above-mentioned rotating airflow blows to the position of the opening, thereby rotating and blowing out the dust and other substances on the floor or carpet, and being blown out. The blown dust is sucked in at the suction port. Through the above-mentioned multiple cyclone nozzles, dust and other substances in the floor or carpet are rotated and blown out, and then sucked by the dust suction port, thereby improving the dust removal efficiency of the floor brush assembly and reducing damage to the carpet.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, in which:

Fig. 1 is a schematic structural view of the first embodiment of the ground brush assembly of the present application;

Fig. 2 is an exploded schematic view of the first embodiment of the ground brush assembly shown in Fig. 1;

Fig. 3 is a schematic cross-sectional view of the first embodiment of the floor brush assembly shown in Fig. 1;

Fig. 4 is another perspective view of the first embodiment of the ground brush assembly shown in Fig. 1;

Fig. 5 is a structural schematic diagram of multiple cyclone nozzles in the first embodiment of the ground brush assembly shown in Fig. 1;

Fig. 6 is a schematic cross-sectional view of a plurality of cyclone nozzles shown in Fig. 5;

Fig. 7 is a schematic structural view of a single cyclone nozzle among the plurality of cyclone nozzles shown in Fig. 5;

Fig. 8 is a top view of a single cyclone nozzle shown in Fig. 7;

Fig. 9 is an exploded schematic diagram of the second embodiment of the floor brush assembly of the present application;

Fig. 10 is a schematic partial cross-sectional view of the second embodiment of the floor brush assembly shown in Fig. 9;

Fig. 11 is a schematic structural view of the cyclone nozzle in the second embodiment of the floor brush assembly shown in Fig. 9;

Fig. 12 is a schematic structural view of the third embodiment of the ground brush assembly of the present application;

Fig. 13 is an exploded schematic diagram of the third embodiment of the floor brush assembly shown in Fig. 12;

Fig. 14 is a schematic cross-sectional view of a third embodiment of the ground brush assembly shown in Fig. 12;

Fig. 15 is a schematic structural view of multiple cyclone nozzles in the third embodiment of the ground brush assembly shown in Fig. 12;

Fig. 16 is a schematic cross-sectional view of a plurality of cyclone nozzles shown in Fig. 15;

Fig. 17 is an exploded schematic diagram of the fourth embodiment of the floor brush assembly of the present application;

Fig. 18 is a first partial schematic view of the fourth embodiment of the ground brush assembly shown in Fig. 17;

Fig. 19 is a second partial schematic diagram of the fourth embodiment of the ground brush assembly shown in Fig. 17;

Fig. 20 is a third partial schematic view of the fourth embodiment of the floor brush assembly shown in Fig. 17;

Fig. 21 is a schematic cross-sectional view of A-A in the fourth embodiment of the ground brush assembly shown in Fig. 20;

Fig. 22 is a top view of the fourth embodiment of the ground brush assembly shown in Fig. 17;

Fig. 23 is a schematic cross-sectional view of the fourth embodiment B-B of the ground brush assembly shown in Fig. 22;

Fig. 24 is a bottom view of the fourth embodiment of the ground brush assembly shown in Fig. 17;

Fig. 25 is a schematic structural view of the first embodiment of the handheld vacuum cleaner of the present application;

Fig. 26 is a schematic structural view of the second embodiment of the handheld vacuum cleaner of the present application;

Fig. 27 is a schematic structural view of the third embodiment of the handheld vacuum cleaner of the present application.

【detailed description】

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is a schematic structural view of the first embodiment of the floor brush assembly of the present application; Fig. 2 is a schematic diagram of explosion shown in Fig. 1; Fig. 3 is a schematic cross-sectional view of Fig. 1 . In one embodiment, the floor brush assembly 10 includes a floor brush body 1, and the floor brush body 1 is formed with an accommodation chamber 13 for accommodating the parts and the like mentioned later, wherein the floor brush body 1 is provided with an opening 11, The opening 11 communicates with the receiving cavity 13 . When using the floor brush assembly, the opening 11 faces the surface to be cleaned, specifically the floor, carpet, etc.; the cleaning elements in the floor brush assembly are all arranged at the opening 11 to treat the surface to be cleaned, and collect dust at the opening 11 .

The floor brush body 1 is provided with a suction port 12, which is communicated with the housing cavity 13, and the dust suction port 12 is also communicated with the opening 11, wherein dust and other substances on the surface to be cleaned are sucked through the opening 11, and then The dust suction port 12 realizes collection to complete the cleaning of the surface to be cleaned. In this embodiment, a dust suction port seal 7 is also provided at the dust suction port 12 to ensure that dust is collected by the dust suction port 12 and prevent dust from entering other positions of the floor brush body 1 .

In this embodiment, for the dust that is not easy to clean, it is cleaned by blowing it up and then vacuuming it. For example, when the floor brush assembly 10 is used to clean the dust in the floor seam or the carpet, the floor brush is no longer used to brush it out, but the dust is separated from the floor seam by blowing. In this embodiment, the ground brush assembly 10 includes a nozzle assembly, the nozzle assembly is arranged on the ground brush body 1, the nozzle assembly includes a plurality of cyclone nozzles 2, and the plurality of cyclone nozzles 2 are used to connect the air flow, and the air outlets 221 of the plurality of cyclone nozzles 2 Set toward the opening 11 , the air flows out from the air outlets 221 of the plurality of cyclone nozzles 2 and blows toward the position of the opening 11 . In this embodiment, a plurality of cyclone nozzles 2 are arranged so that the passing airflow forms a state of a cyclone. That is, the air flow enters from the air inlets 211 of the plurality of cyclone nozzles 2 to the air outlets 211 of the plurality of cyclone nozzles 2 and blows out to form a swirling air flow. The cyclone has a stronger disturbing effect on the dust and it is easier to blow the dust out. In the present application, the cyclone nozzle 2 for realizing the cyclone has various structures, and the structures of the cyclone nozzle 2 capable of blowing out the cyclone are all within the protection scope of the present application.

Thus, through the above-mentioned multiple cyclone nozzles, dust and other substances in the floor or carpet can be rotated and blown out, and then sucked by the suction port, thereby improving the dust removal efficiency of the floor brush assembly 10 and reducing damage to the carpet.

The number of the above-mentioned cyclone nozzles 2 can be two, three or more. When there are a plurality of cyclone nozzles 2, adjacent cyclone nozzles 2 may be arranged independently at intervals, and adjacent cyclone nozzles 2 may be arranged at intervals in communication. Of course, multiple cyclone nozzles 2 can also be arranged in a row, which is not limited here. In addition, the cyclone nozzle 2 is used to connect with the airflow device (not shown in the figure), and the airflow device is used to provide the airflow to the cyclone nozzle 2, and the airflow can be normal pressure airflow or high pressure airflow. After the dust is raised by the cyclone nozzle 2, it is inhaled and collected by the dust suction port 12. This process is all realized in the floor brush body 1. In order to prevent the dust from being blown out of the floor brush body 1 due to excessive air flow, a smaller one is usually selected. The air flow, combined with the cyclone, enables the dust to be lifted up better.

Please refer to Fig. 4, Fig. 5 and Fig. 6, Fig. 4 is a schematic diagram of another angle shown in Fig. 1; Fig. 5 is a schematic structural diagram of the cyclone nozzle shown in Fig. 1; Specifically, with reference to FIGS. 1 to 3 , the cyclone nozzle 2 includes an air guide part 21 and a nozzle part 22, the air guide part 21 and the nozzle part 22 are arranged in communication, the air guide part 21 is used to connect the air flow, and the air flow enters the air guide part 21 Inside. The airflow of the air guide part 21 enters the nozzle part 22 along the radial direction of the nozzle part 22 . After the air flow enters the nozzle portion 22 from the air guiding portion 21 , the nozzle portion 22 is conically arranged so that a swirling air flow is formed from the air outlet 221 of the nozzle portion 22 . In addition, the lateral section of the conical nozzle portion 22 gradually decreases, which increases the airflow velocity, making the swirling airflow velocity formed by the nozzle portion 22 larger, thereby improving the impact of the whirlwind airflow on the carpet at the nozzle portion 22, making it easier to clean the carpet. Causes dust to be blown out of carpets etc.

Please refer to Fig. 7 and Fig. 8, Fig. 7 is a schematic structural diagram of a single cyclone nozzle shown in Fig. 5; Fig. 8 is a top view shown in Fig. 7 . 4 to 6, in order to further increase the velocity of the swirling airflow, the airflow in the air guide part 21 enters the inside of the nozzle part 22 tangentially, that is, the airflow from the air guide part 21 to the nozzle part 22 is in the same direction as the diameter of the nozzle part 22. The tangent is set so that the air flow completely adheres to the inner wall of the nozzle part 22 and rotates, which increases the length of the air flow rotation, thereby increasing the speed of the rotating air flow, and further improving the dust removal effect of the floor brush assembly 10 . The air guide part 21 and the nozzle part 22 can be integrally formed or fixedly connected, which is not limited here. As in this embodiment, the air guiding part 21 and the nozzle part 22 are integrally formed, and the air guiding part 21 is arranged at a tangential position of the nozzle part 22 so that the air inlet 211 is perpendicular to the tangential position of the nozzle part 22 . A helical structure can also be provided on the inner wall of the air duct of the nozzle portion 22 to facilitate the formation of a swirling air flow.

Specifically, the nozzle part 22 includes an air inlet end (not shown on the figure) and an air outlet end (not shown on the figure), when the airflow enters from the air inlet end and goes out from the air outlet end to form a whirlwind, because the size of the air inlet end is larger than The size of the air outlet end can increase the flow velocity of the airflow, further improving the flow velocity of the whirlwind airflow. The air guide part 21 is disposed at the air inlet end of the nozzle part 22 , and the air flow enters into the air inlet end of the nozzle part 22 through the air guide part 21 . Wherein the air outlet 221 is formed at the air outlet.

In one embodiment, with reference to FIG. 6 , the cyclone nozzle 2 is formed with an air inlet 211 and an air outlet 221 , the air inlet 211 is used to connect the air flow, and the air outlet 221 communicates with the opening 11 and faces the position of the opening 11 . In the direction from the air inlet 211 to the air outlet 221, the cyclone nozzle 2 is inclined toward the dust suction port 12, that is, the swirling airflow formed from the cyclone nozzle 2 is sprayed at an oblique angle and blows to the carpet, etc., and the blowing direction is towards the dust suction. The mouth 12 is inclined, so that dust is conveniently blown to the dust suction port 12, which is convenient for the dust suction port 12 to inhale, and the dust removal effect of the ground brush assembly 10 is improved. The air inlet 211 is formed in the air guiding part 21 , and the air outlet 221 is formed in the nozzle part 22 . Specifically, the cyclone nozzle 2 is arranged obliquely toward the dust suction port 12, and the angle between it and the ground is between 45 degrees and 90 degrees, so as to blow up the dust. The above included angle may be 45 degrees, 50 degrees, 60 degrees, 90 degrees and so on.

Please refer to Fig. 9, Fig. 10 and Fig. 11, Fig. 9 is a schematic exploded view of the second embodiment of the ground brush assembly of the present application; Fig. 10 is a partial cross-sectional schematic diagram of the second embodiment of the ground brush assembly of the present application; Fig. 11 is a schematic diagram of the second embodiment of the ground brush assembly of the present application; Schematic diagram showing the structure of the cyclone nozzle. In an embodiment, when there are multiple cyclone nozzles 2, the cyclone nozzles 2 may be arranged in rows. When the cyclone nozzles 2 are arranged in rows, a single row of cyclone nozzles 2 , two rows of cyclone nozzles 2 , three rows of cyclone nozzles 2 or multiple rows of cyclone nozzles 2 can be formed. Arranging multiple cyclone nozzles 2 in a single row or in multiple rows can increase the treatment area of dust and other substances, improve the efficiency of the floor brush assembly 10 in handling dust and other substances, and is also beneficial to the structural design of the floor brush assembly 10 . A plurality of cyclone nozzles 2 can be integrated in rows, and the air inlets 211 of each row of cyclone nozzles 2 are set in the same direction, so that the airflow enters into the air inlets 211 of the cyclone nozzles 2 .

Specifically, referring to Fig. 1 and Fig. 9, when a plurality of cyclone nozzles 2 are arranged in at least two rows, the multi-row cyclone nozzles 2 can all be located on the same side of the dust suction port 12, which increases the flow rate of the swirling airflow and is more conducive to The dust in the carpet is rotated and blown out, and the dust removal efficiency of the floor brush assembly 10 is improved. The above-mentioned at least two rows of cyclone nozzles 2 can be formed integrally or spliced together, which is not limited here. When multiple rows of cyclone nozzles 2 are arranged on the same side of the dust suction opening 12, one or more airflow devices for providing airflow can be shared.

Please refer to Figure 12, Figure 13, Figure 14, Figure 15 and Figure 16, Figure 12 is a schematic structural view of the third embodiment of the ground brush assembly of the present application; Figure 13 is a schematic diagram of the explosion shown in Figure 12; Figure 15 is a schematic structural view of the cyclone nozzle shown in Figure 12; Figure 16 is a schematic cross-sectional view of the cyclone nozzle shown in Figure 15. In other embodiments, when a plurality of cyclone nozzles 2 are arranged in at least two rows, the multi-row cyclone nozzles 2 can be respectively located on opposite sides of the dust suction port 12, which increases the dust suction area of the ground brush assembly 10, and then improves the The floor brush assembly 10 has dust collection efficiency. In order to increase the flow rate of the swirling airflow on the opposite sides of the dust suction port 12, at least two rows of cyclone nozzles 2 can be arranged on the opposite sides of the dust suction port 12, such as two rows of cyclone nozzles 2 and three rows of cyclone nozzles can be set on the opposite sides of the dust suction port 12. Cyclone nozzles 2 or multiple rows of cyclone nozzles 2, etc. As in this embodiment, a row of cyclone nozzles 2 is arranged on opposite sides of the dust suction port 12, and two rows of cyclone nozzles 2 are arranged independently.

The air inlets 211 of the above-mentioned plurality of cyclone nozzles 2 can be independently arranged and communicated with the airflow device respectively, so as to provide airflow to each cyclone nozzle 2 respectively. Alternatively, the air inlets 211 of the plurality of cyclone nozzles 2 may be arranged in communication, and then communicate with the air flow device.

Please refer to Fig. 17, Fig. 18 and Fig. 19, Fig. 17 is an exploded schematic diagram of the fourth embodiment of the ground brush assembly of the present application; Fig. 18 is a first partial schematic diagram of the fourth embodiment of the ground brush assembly shown in Fig. 17; Fig. 19 It is the second partial schematic view of the fourth embodiment of the floor brush assembly shown in FIG. 17 . In one embodiment, the nozzle assembly further includes an air inlet structure 3 , the air inlet structure 3 is formed with an air inlet cavity 31 , and one end of the air inlet cavity 31 is used to connect with an airflow device, so that the airflow enters the air inlet cavity 31 . The other end of the air inlet cavity 31 is used to communicate with the air inlets 211 of the plurality of cyclone nozzles 2 . The airflow enters the air inlets 211 of the plurality of cyclone nozzles 2 from the air inlet chamber 31 of the air inlet structure 3 , flows out from the air outlets 221 of the plurality of cyclone nozzles 2 , and blows toward the position of the opening 11 . That is, a plurality of cyclone nozzles 2 share the same air inlet cavity 31, so that the airflow can converge in the air inlet cavity 31, and then enter into the air inlets 211 of the plurality of cyclone nozzles 2, thereby increasing the flow velocity of the airflow to the cyclone nozzle 2.

In one embodiment, please refer to Fig. 17, Fig. 18 and Fig. 19, the air inlet structure 3 is formed with one, two or more air inlet cavities 31, adjacent air inlet cavities 31 are arranged at intervals, and a plurality of The cyclone nozzles 2 are divided into one group, two groups or multiple groups of cyclone nozzles 2 in the arrangement direction, wherein the air inlet 211 of each group of cyclone nozzles 2 independently communicates with an air inlet cavity 31 . Compared with one or more rows of cyclone nozzles 2 sharing one air inlet structure 3, the air inlet 211 of each group of cyclone nozzles 2 communicates with the corresponding air inlet cavity 31, which can improve the uniformity of air supply , so that the airflow can enter each independent cyclone nozzle 2 more evenly, thereby improving the uniformity of dust removal. As in this embodiment, when one or more rows of cyclone nozzles 2 are located on the same side of the dust suction opening 12 , the nozzle assembly includes two air inlet structures 3 . Of course, the nozzle assembly can also include multiple air inlet structures 3, and the number of the air inlet structures 3 can be determined according to actual conditions.

In practical applications, the floor brush assembly 10 includes a fan 4, which can be arranged on the floor brush assembly 1 to provide airflow to the nozzle assembly. Corresponding to the plurality of air inlet chambers 31 arranged at intervals above, a plurality of fans 4 can be provided, and the fan air outlet 42 of each fan is connected to an air inlet chamber 31 to further ensure that each air inlet chamber 31 The uniformity of the air intake of the corresponding cyclone nozzle.

Wherein, the fan 4 can be arranged outside the ground brush assembly 10 . When the fan 4 is arranged outside the floor brush assembly 10, the fan 4 includes a fan air inlet 41 and a fan exhaust port 42, the fan air inlet 41 is used for outside air to enter, and the fan exhaust port 42 is communicated with one end of the fan flow channel 61. The other end of the fan channel 61 is connected to the ground brush body 1 and communicated with the air inlet structure 3 of the nozzle assembly. Compared with the prior art, in this embodiment, the high-pressure airflow is provided by its own fan 4 .

Specifically, please refer to Fig. 1 and Fig. 9, when multiple rows of cyclone nozzles 2 are located on the same side of the dust suction port 12, there can be one or more fans 4, and multiple fans 4 are connected in series, and only need to form A fan exhaust port 42. Please refer to Fig. 12 to Fig. 14, when the multi-row cyclone nozzles 2 are respectively located on the opposite sides of the dust suction port 12, due to the interference of the position of the dust suction port 12, it is difficult for the fan exhaust ports in one or more fans 4 to be simultaneously The multiple rows of cyclone nozzles 2 on the opposite sides of the dust suction port 12 provide air flow, therefore, at least two blowers 4 are respectively arranged on the opposite sides of the dust suction port 12, so that the multiple rows of cyclone nozzles 2 on the opposite sides of the dust suction port 12 are at least It is connected with a blower fan 4 to facilitate the provision of air flow.

Please refer to Figure 20 and Figure 21, Figure 20 is a third partial schematic view of the fourth embodiment of the floor brush assembly shown in Figure 17; Figure 21 is a schematic cross-sectional view of A-A in the fourth embodiment of the floor brush assembly shown in Figure 20. In other embodiments, the blower fan 4 can also be arranged inside the ground brush assembly 10 , for example, the ground brush body 1 is formed with an air inlet hole 15 , and the air inlet hole 15 communicates with the accommodating cavity 13 . The blower 4 is disposed in the accommodation cavity 13 . The fan 4 communicates with the air inlet 15 for drawing outside air into the housing chamber 13 , and the outlet of the fan 4 is connected to the air inlet 211 of the cyclone nozzle 2 to provide airflow to the cyclone nozzle 2 . Airflow is provided for the nozzle assembly by the fan 4 and the fan 4 is arranged in the floor brush assembly 1, so that the structure of the floor brush assembly 10 is compact and simple, and the appearance is improved. Wherein, the blower 4 may be the aforementioned airflow device.

Regardless of whether the fan 4 is arranged outside or inside the ground brush assembly 10, the number of the fan 4 can be one, two or more, and the number depends on the actual situation. The multiple rows of cyclone nozzles 2 can be divided into one or more groups of cyclone nozzles 2 , wherein the number of fans 4 can be determined according to the number of multiple groups of cyclone nozzles 2 . If multiple rows of cyclone nozzles 2 are not grouped, the number of fan 4 can be one, and multiple rows of cyclone nozzles 2 share one fan 4 . When the multiple rows of cyclone nozzles 2 are divided into two groups, the number of fans 4 is two, and each group of cyclone nozzles 2 communicates with the corresponding fan 4, which can improve the uniformity of air flow.

As in a specific embodiment, when multiple rows of cyclone nozzles 2 are located on the same side of the dust suction port 12, one, two or more fans 4 can be shared. When the multiple rows of cyclone nozzles 2 are located on opposite sides of the dust suction port 12, the multiple rows of cyclone nozzles 2 located on the opposite sides of the dust suction port 12 can be connected to one, two or more fans 4 respectively. Above-mentioned fan 4 can be centrifugal fan etc.

Please refer to Figure 22, Figure 23 and Figure 24, Figure 22 is a top view of the fourth embodiment of the ground brush assembly shown in Figure 17; Figure 23 is a schematic cross-sectional view of the fourth embodiment B-B of the ground brush assembly shown in Figure 22; Figure 24 is Figure 17 is a bottom view of a fourth embodiment of a floor brush assembly.

In one embodiment, the ground brush assembly 10 may include a rolling brush 8, which is rotatably arranged on the ground brush body 1 to assist in cleaning the dust in the carpet; at the same time, the rolling brush 8 cooperates with the cyclone nozzle 2 to improve the floor surface. Brush assembly 10 cleaning efficiency. The rolling brush 8 can be passively rotated, that is, when the floor brush assembly 10 moves, it rotates through friction with the ground. The rolling brush 8 can also actively rotate, that is, the rolling brush 8 can be connected with a motor (not shown on the figure), and the motor (not shown on the figure) drives the rolling brush 8 to move when the floor brush assembly 10 works. The rolling brush 8 can be a soft velvet rolling brush, and the soft velvet rolling brush can reduce the entanglement of hair in the process of cleaning the carpet.

Of course, in other embodiments, the floor brush assembly 10 may not be provided with the rolling brush 8 . The ground brush assembly 10 can be provided with a traveling mechanism (not shown in the figure), which is installed on the ground brush body 1 for moving the ground brush body 1 . The above-mentioned traveling mechanism can be of any structure, as long as it can realize the movement of the ground brush body 1, and there is no limitation here.

Specifically, the traveling mechanism includes four universal traveling wheels and four driving motors, and the four universal traveling wheels and the four driving motors are all installed on the ground brush body 1 . Each universal traveling wheel is respectively connected to a driving motor, and the four universal traveling wheels all adopt Macram wheels, and each Macram wheel is correspondingly connected to a driving motor. The ground brush assembly 10 can move automatically by using the driving mode of the driving motor to drive the Macram wheel, which can be used in sweeping robots, hand-held vacuum cleaners and other equipment. When used on a handheld vacuum cleaner, it can make the process of sweeping and mopping the floor easier, improve the technological sense and intelligence level of the handheld vacuum cleaner, and increase the value of the product. In addition, the ground brush assembly 10 can move in all directions by using the Macram wheel independently controlled by four driving motors, which solves the problem that the floor brush assembly 10 cannot walk in multiple directions and realizes multi-dimensional cleaning Experience, no need to move back and forth to scan, improve user satisfaction.

The above-mentioned four universal traveling wheels are arranged in pairs, and the four universal traveling wheels are located at the same height, so that the ground brush assembly 10 can walk on the ground stably by arranging the four universal traveling wheels. In addition, since at least one of the universal traveling wheels is movably connected to the floor brush body 1 to move to different heights, when the floor brush assembly 10 walks on uneven ground, the movable universal traveling wheels can be relatively balanced Due to the height difference of the uneven ground, the universal traveling wheels keep walking on the ground to avoid slipping on the ground, and the universal traveling wheels can maintain their own performance, and the ground brush assembly 10 runs smoothly as a whole.

It should be noted that the four universal road wheels at the same height means that when the four universal road wheels are placed on a normal level ground, the four universal road wheels can all be in contact with the normal level ground (if the four universal road wheels For the same size, the rotation axes of the four universal road wheels are at the same height at this moment). And at least one traveling wheel is movably connected to the ground brush body 1 in a manner capable of moving to different heights in addition to its own rotation.

In one embodiment, please refer to FIG. 2 , FIG. 9 and FIG. 13 , the floor brush body 1 is provided with a floor brush installation opening 14 , and the location of the floor brush installation opening 14 is related to the arrangement of the above-mentioned multi-row cyclone nozzles 2 . When multiple rows of cyclone nozzles 2 are all located on the same side of the dust suction opening 12 , the ground brush installation opening 14 may only be located on the same side of the dust suction opening 12 . When the multi-row cyclone nozzles 2 are located on opposite sides of the dust suction opening 12 , the floor brush installation openings 14 are located on opposite sides of the dust suction opening 12 . The ground brush installation opening 14 communicates with the multi-row cyclone nozzles 2 , and the multi-row cyclone nozzles 2 communicate with the air intake structure 3 , and the air flow enters into the multi-row cyclone nozzles 2 through the air intake structure 3 .

Specifically, the ground brush installation port 14 is elongated, and is arranged along the length direction of the ground brush body 1, wherein the nozzle part 22 in the cyclone nozzle 2 can be inserted into the ground brush body 1, and then the wind guide part in the cyclone nozzle 2 21 is fixed on the outer surface of the ground brush body 1 by bolts and other fasteners to realize the installation and disassembly of the nozzle assembly.

In addition, referring to Fig. 17, the ground brush body 1 includes a ground brush upper cover 16, a ground brush base 17 and a decorative front cover 18, wherein the ground brush upper cover 16, the ground brush base 17 and the decorative front cover 18 The detachable connection, and the three are surrounded by an accommodating cavity 13, so that the nozzle assembly and the fan 4 are arranged in the accommodating cavity 13, which not only makes the structure of the floor brush assembly 10 itself compact and simple, but also improves the appearance. Compared with the prior art, the cyclone nozzle in this embodiment makes the airflow form a cyclone state, because the air outlet of the cyclone nozzle is set towards the opening, so that the above-mentioned rotating airflow is blown to the opening position, thereby removing dust and other substances on the floor or carpet. The blown dust is blown out by rotation, and the blown dust is sucked in at the suction port. Through the above-mentioned multiple cyclone nozzles, dust and other substances in the floor or carpet are rotated and blown out, and then sucked by the dust suction port, thereby improving the dust removal efficiency of the floor brush assembly and reducing damage to the carpet.

Please refer to Figure 25, Figure 26 and Figure 27, Figure 25 is a schematic structural view of the first embodiment of the handheld vacuum cleaner of the present application; Figure 26 is a schematic structural view of the second embodiment of the handheld vacuum cleaner of the present application; Schematic diagram of the structure of the embodiment. In one embodiment, the hand-held vacuum cleaner 100 includes a floor brush assembly 10 . By using the above-mentioned floor brush assembly 10 , the hand-held vacuum cleaner 100 can improve the dust removal efficiency of the hand-held vacuum cleaner 100 , thereby reducing damage to carpets and the like. It should be noted that the floor brush assembly 10 in this embodiment is the floor brush assembly 10 described in the above-mentioned embodiments, which will not be repeated here.

The handheld vacuum cleaner in this embodiment can use the swirling airflow to blow up the dust in the carpet or the floor seam to improve the cleaning effect, and it does not need to use the brush structure to brush up the dust and will not cause damage to the carpet. In addition, the wind discharged from the dust suction fan in the hand-held vacuum cleaner is used as a whirlwind blown out to improve the energy utilization rate.

Specifically, the handheld vacuum cleaner 100 includes a dust collection main unit 20 and a dust suction pipe 30 , the dust suction pipe 30 is rotatably arranged on the ground brush assembly 10 , that is, the dust suction pipe 30 can be rotatably arranged relative to the brush body 1 . That is to say, the user holds the vacuum main unit 30 in his hand, and can rotate the brush body 1 relatively through the dust suction pipe 30, and then it is convenient for the user to operate the vacuum cleaner to realize the movement of the floor brush assembly 10 and the movement of the floor brush assembly 10 in different directions.

One end of the above-mentioned dust suction pipe 30 is connected to the dust suction port 12, and the other end of the dust suction pipe 30 is connected to the air outlet of the dust suction host 30. The dust suction host 20 is used to provide suction so that the dust suction port 12 can suck Dust enters into the dust suction duct 30 .

Thus, through the air outlet 201 of the above-mentioned vacuum main unit 20 being connected to the nozzle assembly, the airflow formed at the tail of the main unit 20 can be fully utilized, energy waste is avoided, and cost is saved. In this embodiment, as previously mentioned, the airflow blown by the cyclone nozzle 2 does not need to be very large, so it is enough to use a part of the airflow in the air outlet 201 of the dust collector 20, and the other part is discharged to the external environment, that is, to The exhaust air of the vacuum host 20 is split, and a part is connected with the air intake structure, and the other part is connected with the external environment, which can also ensure heat dissipation.

Referring to FIG. 17 and FIG. 23 , the dust suction duct 30 may include a conductive rod connecting pipe 301 and a connecting hose 302 , and the connecting hose 302 is sleeved in the conducting rod connecting pipe 301 . At the same time, the dust suction pipe 30 includes a hose connection part 303 , the hose connection part 303 is arranged on the floor brush assembly 10 , for example, the hose connection part 303 is detachable from the floor brush assembly 10 . In addition, the connecting hose 303 is connected to the hose connecting part 303 through the connecting part gland 304 . Wherein the connection hose 302 partly leaks out between the conductive rod connecting pipe 301 and the hose connection part 303 , so that the dust suction pipe 30 can be rotated to the ground brush assembly 10 .

Optionally, a limit column (not shown in the figure) is provided on the outer periphery of the dust suction pipe 30, and a limit lug (not shown in the figure) is provided on the floor brush body 1, and the limit post in the dust suction pipe 30 rotates on the floor brush body 1 Inside the middle limiting lug, so that the dust suction pipe 30 rotates relative to the brush body 1 .

In one embodiment, the handheld vacuum cleaner 100 includes a ventilation duct 202 , and the ventilation duct 202 can be disposed inside the main unit 20 , as shown in FIG. 27 . Alternatively, the ventilation duct 202 is arranged outside the main unit 20 of the dust collector, such as between the main unit 20 and the floor brush assembly 10, as shown in FIG. 25 and FIG. 26 . The air duct 202 communicates with the air outlet 201 of the dust collection host 20 and the air intake structure 3 , and the exhaust air from the dust collection host 20 can enter the air intake structure 3 through the air outlet 201 and the air duct 202 .

By arranging the ventilation duct 202 inside the vacuum main unit 20 , the compactness of the structure of the handheld vacuum cleaner 100 can be improved, thereby improving the aesthetics of the handheld vacuum cleaner 100 .

The terms "first", "second", and "third" in this application are used for description purposes only, and should not be understood as specifying the number of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship between the components in a certain posture (as shown in the drawings) , sports conditions, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. A process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes For other steps or units inherent in these processes, methods, products or apparatuses.

The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process conversion made by using the specification and drawings of the application, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of this application in the same way.

Claims

A ground brush assembly, characterized in that the ground brush assembly includes:

A ground brush body, the ground brush body forms a receiving chamber with an opening, and a dust suction port communicating with the receiving chamber;

Nozzle assembly, the nozzle assembly includes a plurality of cyclone nozzles, the nozzle assembly is arranged on the ground brush body, wherein, the air outlet of the cyclone nozzle is set towards the opening; and the cyclone nozzle is set so that the passing The airflow forms a state of whirlwind.
The floor brush assembly according to claim 1, wherein the cyclone nozzle comprises an air guide part and a nozzle part, the nozzle part is conical, the air guide part communicates with the nozzle part, and the The air flow of the air guide part enters the nozzle part along the radial direction of the nozzle part.
The floor brush assembly according to claim 2, wherein the nozzle part includes an air inlet end and an air outlet end, the size of the air inlet end is larger than the size of the air outlet end, and the air guide part is arranged on the The air inlet end of the nozzle part.
The ground brush assembly according to claim 1, wherein the cyclone nozzle is arranged obliquely toward the dust suction port in the direction from the air inlet to the air outlet.
The ground brush assembly according to claim 1, wherein the plurality of cyclone nozzles are arranged to form a single row or multiple rows.
The ground brush assembly according to claim 5, wherein the plurality of rows of cyclone nozzles are located on the same side of the dust suction port, or the plurality of rows of cyclone nozzles are respectively located on opposite sides of the dust suction port .
The floor brush assembly according to claim 5, wherein the nozzle assembly further comprises an air inlet structure, the air inlet structure forms an air inlet chamber, and the air inlet of the cyclone nozzle communicates with the air inlet chamber body.
The ground brush assembly according to claim 7, wherein the plurality of rows of cyclone nozzles are respectively located on opposite sides of the suction port, and the number of the air inlet structures is two, which are respectively connected to the suction nozzles. Cyclone nozzles on opposite sides of the dust port.
The ground brush assembly according to claim 7, wherein the air inlet structure is formed with at least two spaced air inlet cavities, and the plurality of cyclone nozzles are divided into at least two groups of cyclone nozzles in the arrangement direction, The air inlets of each set of cyclone nozzles communicate with one of the air inlet chambers.
The ground brush assembly according to claim 9, characterized in that the ground brush assembly further comprises at least two fans, and the fan exhaust port of each of the fans communicates with one of the air inlet chambers.
The ground brush assembly according to claim 1, wherein an air inlet hole communicating with the accommodating chamber is formed on the ground brush body; In the cavity, the fan outlet of the fan is connected to the air inlet of the cyclone nozzle.
The ground brush assembly according to claim 1, characterized in that, the ground brush assembly further comprises a running mechanism, the running mechanism is arranged on the ground brush body, and is used to move the ground brush body.
The ground brush assembly according to claim 12, wherein the traveling mechanism comprises four universal traveling wheels and four driving motors, and each universal traveling wheel is connected to a driving motor; the four universal traveling wheels The wheels are arranged side by side in pairs.
A handheld vacuum cleaner, characterized in that the handheld vacuum cleaner comprises the floor brush assembly according to any one of claims 1-13.
The handheld vacuum cleaner according to claim 14, wherein the handheld vacuum cleaner comprises:

The dust suction pipe is connected to the ground brush assembly and communicated with the dust suction port;

The dust suction host is connected to the dust suction pipeline, and the air outlet of the dust suction host is connected to the dust suction pipeline.
The hand-held vacuum cleaner according to claim 15, characterized in that, the air outlet of the vacuum main unit communicates with the nozzle assembly.