Floor brush assembly and cleaning equipment

Abstract

The utility model provides a floor brush assembly and cleaning equipment, the floor brush assembly comprises air inlets located at two sides of a floor brush main body and an air duct located in the floor brush main body, and the height and the area of the air inlets and the shape and the size of the air duct are reasonably designed to ensure that a suction port of the floor brush has enough suction force; the vacuum area in the middle of the rolling brush attached to the ground and the vacuum areas on the two sides of the air duct are reduced to prevent hair from staying at the positions to cause secondary winding of the rolling brush, so that the cleaning effect is ensured; meanwhile, the position of the tooth comb scraping strip is reasonably designed, so that the stripping effect and stripping efficiency of the tooth comb scraping strip on the hair on the rolling brush are guaranteed; hair is effectively prevented from winding the rolling brush, the rolling brush is easy to clean, and the cleaning effect of the whole machine is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning devices, and in particular relates to a floor brush assembly and cleaning equipment. Background Art

[0002] In existing cleaning equipment, such as floor scrubbers, hair is easily entangled in the roller brush when sucking hair, making it difficult to clean and affecting the cleaning effect. Most existing solutions are to add a hair-cutting device to the roller brush. Although this solution can improve the cleaning problem after the hair is entangled in the roller brush to a certain extent, it cannot completely avoid the problem of the roller brush being entangled with hair. In addition, the hair-cutting device is likely to damage the roller brush hair when cutting the hair, reducing the service life of the roller brush, and at the same time increasing the cost. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a floor brush assembly and a cleaning device to improve the problem that hair is easily entangled in the roller brush of the existing machine during cleaning, making cleaning difficult and affecting the cleaning effect.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a floor brush assembly, comprising:

[0005] A floor brush body, wherein an air duct is arranged in the floor brush body;

[0006] At least two roller brushes are rotatably installed at the bottom of the floor brush body and are located on the same side of the floor brush body. Air inlets are respectively opened on the opposite sides of the floor brush body. The two air inlets are distributed along the axial direction of the roller brush. The air inlets are connected to the air duct, and the height of the air inlets is less than or equal to the radius of the roller brush.

[0007] In this way, the air inlet is set on both sides of the floor brush body, and the height of the air inlet is less than or equal to the radius of the roller brush, which can ensure that the floor brush body obtains a suitable air intake volume and a suitable wind speed. It should be understood that when the air volume is too high, the wind speed is relatively small, so the hair is easily entangled in a certain position of the floor brush body and is not easy to be taken away. When the wind speed is very high, the air intake volume is relatively small, which will also lead to incomplete cleaning. For this reason, by limiting the height of the air inlet, this case can obtain an air volume that can meet the cleaning needs and a wind speed that can take away the hair, thereby ensuring its cleaning effect.

[0008] In one embodiment of the utility model, the air inlet is opened between the two roller brushes. In this way, the air inlet is opened between the two roller brushes and is located on the side of the floor brush body, so that when the floor brush body is in contact with the target cleaning surface for cleaning, the air inlet can be prevented from being blocked, and air enters from the air inlet between the two roller brushes to ensure that the airflow entering from the air inlet can take away the hair on the two roller brushes, thereby ensuring the cleaning effect.

[0009] In one embodiment of the utility model, connecting plates are provided on both sides of the floor brush body, and the lower edge of the connecting plate, the part of the outer circumference of the two roller brushes intersecting with the lower edge of the connecting plate and relatively adjacent, and the line between the lowest points of the two roller brushes enclose an air inlet. In this way, an air inlet is provided on the side of the floor brush body, which is formed by the lower edge of the side plate, the part of the outer circumference of the roller brush, and the line between the lowest points of the two roller brushes, to ensure that the floor brush suction port has sufficient suction force, thereby ensuring its cleaning effect. At the same time, the air inlet is arranged in this way so that the structure of the current floor brush itself can be used as much as possible. If other air inlets are opened in other positions, it will inevitably affect the installation of other components. For this reason, the air inlet in this example can meet the air intake requirements while not affecting the layout of the floor brush itself as much as possible.

[0010] In one embodiment of the utility model, the distance between the lower edge of the connecting plate and the line connecting the lowest points of the two roller brushes is less than or equal to the radius of the roller brush. This arrangement makes the height of the air inlet less than or equal to the radius of the roller brush, which can ensure that the floor brush body obtains a suitable air intake volume and a suitable wind speed. It should be understood that when the air volume is too high, the wind speed is relatively small, so hair is easily entangled in a certain position of the floor brush body and is not easy to be taken away. When the wind speed is very high, the air intake volume is relatively small, which will also lead to incomplete cleaning. For this reason, this case can obtain an air volume that can meet the cleaning needs and a wind speed that can take away the hair by limiting the height of the air inlet, thereby ensuring its cleaning effect.

[0011] In one embodiment of the present invention, the sum of the areas of the two air inlets located on both sides of the floor brush body is S, which satisfies the relationship: 200mm 2 ≤S<800mm 2 In this way, by reasonably setting the area of ​​the air inlet, it is further prevented that the wind speed becomes slower due to the large air volume, and the air volume and wind speed can be kept in a balanced state, thereby ensuring its cleaning effect.

[0012] In one embodiment of the utility model, the minimum distance between the two roller brushes is a, which satisfies the relationship: 2mm≤a≤10mm. In this way, by reasonably designing the distance between the roller brushes, it is ensured that there is enough air volume in the air duct above the roller brushes to carry away the hair, and at the same time, it is ensured that there is a certain flow rate in the area above the central axis of the roller brush, that is, where the tooth comb stripping point is located, so as to quickly carry away the hair stripped by the tooth comb.

[0013] In one embodiment of the utility model, an air duct assembly is included, the air duct assembly is formed at the upper end of the floor brush body, the air duct assembly is formed with a sewage suction port facing the target cleaning surface, and the height between the lowest end of the sewage suction port facing the target cleaning surface and the axis of the roller brush is less than or equal to the radius of the roller brush. In this way, the minimum distance between the lower edge of the sewage suction port and the central axis of the roller brush is reasonably designed, so that the height between the lowest end of the sewage suction port facing the target cleaning surface and the axis of the roller brush is less than or equal to the radius of the roller brush, so as to reduce the vacuum area on both sides of the air duct, and prevent hair from staying there and causing secondary entanglement of the roller brush.

[0014] In one embodiment of the utility model, the air duct assembly includes a first side wall and a second side wall facing the target cleaning surface, the first side wall and the second side wall are relatively arranged between the two roller brushes, the first side wall is arranged on the side of the roller brush close to the inner side of the floor brush body, and the first side wall and the second side wall form a sewage suction port facing the target cleaning surface. In this way, the formed sewage suction port is located between the two roller brushes and faces the target cleaning surface, so as to ensure that the hair stripped by the tooth comb can be smoothly sucked away through the sewage suction port.

[0015] In one embodiment of the utility model, the lower edge of the first side wall is configured as the lowest end of the air duct assembly, and the height between the lower edge of the first side wall and the axis of the roller brush is less than or equal to the radius of the roller brush. In this way, the lower edge of the first side wall is the lowest end of the air duct assembly, that is, the lower edge of the first side wall is the lowest end of the suction port toward the target cleaning surface, and the height between the lowest end and the axis of the roller brush is set to be less than or equal to the radius of the roller brush, so as to further reduce the vacuum area on both sides of the air duct to prevent hair from staying there and causing secondary entanglement of the roller brush.

[0016] In one embodiment of the utility model, the air duct assembly further includes a third side wall and a fourth side wall facing the target cleaning surface, the third side wall and the fourth side wall are located on both sides of the axial direction of the floor brush body, and form a sewage suction port facing the target cleaning surface with the first side wall and the second side wall, and the distance between the third side wall and the fourth side wall gradually increases in the direction toward the target cleaning surface. In this way, by reasonably designing the spacing between the side walls on both sides of the sewage suction port close to the air inlet, the air volume on both sides can be gathered as much as possible to the middle area of ​​the lower end of the roller brush close to the sewage suction port, thereby increasing the air volume in this area and preventing the residual sewage and small particles of garbage in the middle part of the floor brush.

[0017] In one embodiment of the utility model, the angle between the third side wall and the fourth side wall and the horizontal plane is set to be greater than or equal to 5°. In this way, by reasonably setting the slope of the suction port, it is avoided that the air volume on both sides of the lower end of the roller brush near the suction port is large, the air volume in the middle is small, or even almost no air volume problem, thereby ensuring that the air volume in the air duct is as uniform as possible.

[0018] In one embodiment of the utility model, the air duct assembly further includes an air duct, the sewage suction port is connected to the air duct, and the sewage suction port and the air duct form an air duct;

[0019] The air duct includes a top wall and a bottom wall arranged at the upper end of the roller brush, one end of the bottom wall is connected to the first side wall, and one end of the top wall is connected to the second side wall;

[0020] From the central section of the floor brush body, the distance between the axis of the axis of the roller brush inside the floor brush body and the intersection of the top wall and the bottom wall is configured as d2, which satisfies the relationship: 13mm≤d2≤20mm, where the central section is configured to be perpendicular to the target cleaning surface and extend along the radial direction of the roller brush and pass through the middle position of the floor brush body. With this arrangement, the height between the top wall and the bottom wall of the air duct is reasonably designed to ensure a high suction force and flow rate in the duct, while also ensuring that the air volume is as uniform as possible and preventing large garbage from blocking the duct.

[0021] In one embodiment of the utility model, the width of the connection between the top wall and the first side wall is greater than or equal to 50 mm. In this way, the width of the connection between the top wall and the first side wall is the width of the connection between the suction port and the air duct. By reasonably designing the width of the connection between the suction port and the air duct, it is ensured that enough air volume enters the air duct, thereby ensuring that hair and other garbage can be smoothly sucked away, and preventing large garbage from getting stuck at the connection.

[0022] In one embodiment of the utility model, a guide portion is provided inside the air duct, and the guide portion is used to disturb the airflow entering the air duct. In this way, the guide portion is provided to break the vortex in the middle of the air duct, making the airflow in the middle of the air duct smoother, thereby ensuring its cleaning effect.

[0023] In one embodiment of the utility model, a guide portion is provided in the air duct, and the guide portion is used to disturb the airflow entering the air duct.

[0024] In one embodiment of the utility model, the guide portion includes a first guide rib arranged on the inner side of the top wall and intersecting with the axial direction of the roller brush, and a second guide rib arranged on both sides of the first guide rib and extending toward the air inlets on both sides of the floor brush body. In this way, the first guide rib perpendicular to the axial direction of the roller brush and the second guide rib located on both sides of the first guide rib are arranged on the top wall of the air duct, and the first guide rib and the second guide rib can disturb the airflow entering the air duct to avoid vortices generated by collision in the middle of the air duct after the airflow enters the air duct from the air inlets on both sides, thereby making the airflow in the middle of the air duct smoother, thereby ensuring its cleaning effect.

[0025] In one embodiment of the utility model, at least two tooth-comb scraping strips are included, and the two tooth-comb scraping strips are respectively a front scraping strip installed on the second side wall and a rear scraping strip installed on the first side wall, and the front scraping strip and the rear scraping strip are respectively interference fit with the implanted hair on the two roller brushes, and the lowest point of the tooth-comb scraping strip is located above the central axis of the roller brush. In this arrangement, by reasonably designing the position of the tooth-comb scraping strip, the lowest point of the tooth-comb scraping strip is located above the central axis of the roller brush to extend the suction time of the hair attached to the roller brush, and the hair attached to the roller brush can also be partially separated after reaching or exceeding 1 / 4 circle of the roller brush, and the scraping strip is easier to peel off, thereby ensuring that the hair is not easily entangled with the roller brush.

[0026] In one embodiment of the utility model, the line between the lowest point of the tooth comb scraper and the axis of the roller brush is L1, and the line between the two roller brush axes is L2, wherein the angle formed between L1 and L2 is less than or equal to 45°. With such a configuration, the angle formed by the line between the lowest point of the tooth comb scraper and the axis of the roller brush and the line between the two roller brush axes is reasonably designed to improve the effect and efficiency of the tooth comb scraper in stripping hair from the roller brush. At the same time, the above configuration can also affect the direction of the incoming air, thereby ensuring a more uniform air volume.

[0027] In one embodiment of the utility model, the distance between the front scraper and the rear scraper is greater than or equal to 8 mm. In this way, by reasonably designing the distance between the front scraper and the rear scraper, it is possible to prevent large particles of garbage such as melon seed shells and fruit shells from getting stuck in the middle, which is difficult to clean and causes air duct blockage. At the same time, the above arrangement can also affect the direction of the incoming air, thereby ensuring a more uniform air volume, thereby affecting the overall cleaning effect.

[0028] The utility model also proposes a cleaning device, including a body, a floor brush assembly such as any one of the above embodiments, a sewage tank and a sewage suction pipe connected to the sewage tank are arranged in the body, and the sewage suction pipe is connected to the air duct of the floor brush assembly to suck the dirt on the target cleaning surface into the sewage tank. In this way, the air inlet is arranged on both sides of the floor brush body, and the height of the air inlet is less than or equal to the radius of the roller brush, so as to ensure that the floor brush suction port has sufficient suction force, and at the same time, the air flow is gathered to the middle along the ground as much as possible, reducing the vacuum area in the middle of the roller brush close to the ground, preventing hair from staying here and causing secondary entanglement of the roller brush, thereby ensuring its cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 The utility model is a schematic structural diagram of a floor brush assembly in one embodiment.

[0031] Figure 2 The figure is a schematic diagram of the side structure of a floor brush assembly in one embodiment of the utility model.

[0032] Figure 3 The utility model is a schematic diagram of the structure of the air duct in the floor brush assembly in one embodiment.

[0033] Figure 4 The figure is an exploded schematic diagram of an air duct in a floor brush assembly in one embodiment of the utility model.

[0034] Figure 5 The figure is a schematic cross-sectional structure diagram of a floor brush assembly in one embodiment of the utility model.

[0035] Figure 6 The figure is a partial cross-sectional schematic diagram of a floor brush assembly in one embodiment of the utility model.

[0036] Figure 7 The utility model is a schematic diagram of the cross-sectional structure of the sewage suction port of the floor brush assembly in one embodiment.

[0037] Figure 8 The utility model is a schematic diagram of the cross-sectional structure of an air duct in one embodiment.

[0038] Fig. 9 The figure is a schematic diagram of the structure of the bottom shell in one embodiment of the utility model.

[0039] Fig.10 The utility model is a schematic structural diagram of a sewage suction port in one embodiment.

[0040] Fig.11 The utility model is a schematic structural diagram of a guide part in one embodiment.

[0041] Description of labels:

[0042] 100, floor brush assembly; 10, floor brush body; 20, roller brush; 201, rear roller brush; 202, front roller brush; 30, tooth comb scraper; 40, air duct; 21, air inlet; 11, connecting plate; 31, rear scraper; 32, front scraper; 41, air duct; 411, bottom wall; 412, top wall; 43, guide part; 431, first guide rib; 432, second guide rib; 42, sewage suction port; 421, first side wall; 422, second side wall; 423, third side wall; 424, fourth side wall. DETAILED DESCRIPTION

[0043] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0044] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0045] When existing floor scrubbers absorb hair, the hair is easily entangled in the roller brush, making it difficult to clean, thereby affecting the cleaning effect.

[0046] In order to solve the above problems, the prior art generally adds a device for cutting hair on the roller brush. However, although this solution can improve the cleaning problem after the hair is entangled in the roller brush to a certain extent, it cannot completely avoid the problem of the hair being entangled in the roller brush. In addition, the device for cutting hair can easily damage the hair implantation of the roller brush while cutting the hair, reduce the service life of the roller brush, and increase the cost.

[0047] Therefore, the present application proposes a floor brush assembly and a cleaning device to improve the problem that hair is easily entangled in the roller brush of the existing machine during cleaning, causing cleaning difficulties and affecting the cleaning effect. The solution provided in the present application can ensure that the air intake volume and the internal wind speed of the floor brush body are as uniform as possible, and can meet the needs of dirty cleaning and anti-entanglement of hair. The specific solution is as follows.

[0048] Please refer to 1 to Fig.11 As shown, the floor brush assembly 100 includes a floor brush body 10, at least two roller brushes 20 and at least two tooth comb scraping strips 30, the two roller brushes 20 are rotatably installed at the bottom of the floor brush body 10, and are located on the same side of the floor brush body 10. Preferably, the two roller brushes 20 are arranged in parallel on the front side of the floor brush body 10, and the front side of the floor brush body 10 refers to the side of the forward direction of the floor brush body 10 during cleaning.

[0049] The tooth comb scraper 30 is a comb teeth structure with a plurality of intervals. With the optimization of its size and position, it can better clean the hair on the roller brush while preventing the hair from being entangled on the tooth comb scraper 30 and will not affect the air volume and wind speed. See below for details.

[0050] Among the two roller brushes 20 located on the front side of the floor brush body 10, the roller brush located on the inner side is defined as the rear roller brush 201, and the roller brush located on the outer side is defined as the front roller brush 202. Two tooth comb scraping strips 30 are installed on the floor brush body 10 and are located between the two roller brushes 20. Each tooth comb scraping strip 30 is interference fit with the implanted hair on one roller brush 20. For example, the tooth comb scraping strip 30 includes a rear scraping strip 31 that cooperates with the rear roller brush 201 and a front scraping strip 32 that cooperates with the front roller brush 202 to peel off the hair on the rear roller brush 201 and the front roller brush 202. An air duct 40 is arranged in the floor brush body 10, and the hair on the roller brush 20 is peeled off by the tooth comb scraping strip 30, and the peeled hair is sucked away by the air duct 40 to achieve cleaning.

[0051] There is an obvious unevenness in the air volume and wind speed in the air duct of the existing floor brush assembly, resulting in a vacuum area in the middle of the air duct where the floor brush is close to the ground and vacuum areas on both sides of the air duct. During the cleaning process, the vacuum area and the vacuum area easily cause impurities such as hair to stay in the area, causing secondary entanglement of the roller brush 20 and affecting its cleaning effect.

[0052] Therefore, please refer to Figure 2 , Figure 3 and Figure 4 As shown, air inlets 21 are respectively provided on the opposite sides of the floor brush body 10, and the two air inlets 21 are distributed along the axial direction of the roller brush 20, and the air inlet 21 is located between the two roller brushes 20. The air inlet 21 is opened between the two roller brushes 20 and is located on the side of the floor brush body 10, so that when the floor brush body 10 is in contact with the target cleaning surface for cleaning, the air inlet 21 can be prevented from being blocked, and air enters from the air inlet 21 between the two roller brushes 20 to ensure that the airflow entering from the air inlet 21 can take away the hair on the two roller brushes 20, thereby ensuring the cleaning effect.

[0053] See also Figure 2 , Figure 3 and Figure 4 As shown, the air inlet 21 is connected to the air duct 40, and the height of the air inlet 21 is less than or equal to the radius of the roller brush 20, which can ensure that the floor brush body 10 obtains a suitable air intake volume and a suitable wind speed. It should be understood that when the air volume is too high, the wind speed is relatively small.

[0054] Therefore, hair is easily entangled in a certain position of the floor brush body 10 and is not easy to be taken away, and the wind speed is very high, and the air intake is relatively small, which will also lead to incomplete cleaning. Therefore, in this case, by limiting the height of the air inlet 21, it is possible to obtain an air volume that can meet the cleaning needs and a wind speed that can take away the hair, thereby ensuring its cleaning effect.

[0055] See also Figure 1 and Figure 2As shown, in this embodiment, connecting plates 11 are provided on both sides of the floor brush body 10, and the connecting plates 11 are distributed on both sides of the axial direction of the roller brush 20. The lower edge of the connecting plate 11, the outer circumference of the two roller brushes 20 intersecting with the lower edge of the connecting plate 11 and relatively adjacent to each other, and the line between the lowest points of the two roller brushes 20 enclose an air inlet 21. The air inlet 21 is arranged on both sides of the floor brush body 10 to ensure that the floor brush suction port has sufficient suction force, thereby ensuring its cleaning effect. At the same time, the air inlet 21 is arranged in this way so that the structure of the current floor brush itself can be used as much as possible. If other air inlets are opened at other locations, it will inevitably affect the installation of other components. For this reason, the air inlet 21 in this example can meet the air intake requirements without affecting the layout of the floor brush itself as much as possible.

[0056] In this embodiment, the distance h between the lower edge of the connecting plate 11 and the lowest point of the two roller brushes 20 is less than or equal to the radius of the roller brush 20, so that the height of the air inlet 21 is less than or equal to the radius of the roller brush 20, thereby ensuring that a suitable air intake volume and a suitable wind speed are obtained in the floor brush body 10.

[0057] It should be understood that when the air volume is too high, the wind speed is relatively low, so hair is easily entangled in a certain position of the floor brush body 10 and is not easy to be taken away. When the wind speed is high, the air intake is relatively small, which will also lead to incomplete cleaning. Therefore, in this case, by limiting the height of the air inlet 21, it is possible to obtain an air volume that can meet the cleaning needs and a wind speed that can take away the hair, thereby ensuring its cleaning effect.

[0058] See also Figure 1 and Figure 2 As shown, in order to further ensure the cleaning effect of the floor brush assembly 100, in this embodiment, the sum S of the areas between the two air inlets 21 located on both sides of the floor brush body 10 is set to satisfy the relationship: 200mm 2 ≤S<800mm 2 .

[0059] By reasonably setting the area range of the air inlet 21, it further prevents the air inlet 21 from being too large and resulting in a large air volume, thereby slowing down the wind speed, or preventing the air inlet from being too small and resulting in insufficient air volume and reduced suction force, thereby ensuring that the air volume and wind speed are in a balanced state, thereby ensuring its cleaning effect.

[0060] For example, the area of ​​the air inlet 21 is preferably 400 mm 2 , while ensuring that the suction port of the floor brush has sufficient suction power, the airflow is gathered along the ground to the middle suction port as much as possible, reducing the vacuum area in the middle of the floor brush close to the ground, thereby preventing hair from staying here and causing secondary entanglement of the roller brush, thereby ensuring its cleaning effect.

[0061] See also Figure 1 , Figures 5 to 10 As shown, in this embodiment, the floor brush assembly 100 includes an air duct assembly, and the air duct assembly includes a sewage suction port 42 and an air duct 41 . The sewage suction port 42 is connected to the air duct 41 , and the sewage suction port 42 and the air duct 41 form an air duct 40 .

[0062] Specifically, the air duct component is formed at the upper end of the floor brush body 10, and the air duct component is formed with a sewage suction port 42 facing the target cleaning surface. The height between the lowest end of the sewage suction port 42 facing the target cleaning surface and the central axis L of the roller brush 20 is less than or equal to the radius of the roller brush 20. The minimum distance between the lower edge of the sewage suction port 42 and the central axis L of the roller brush 20 is reasonably designed so that the height between the lowest end of the sewage suction port 42 facing the target cleaning surface and the central axis L of the roller brush 20 is less than or equal to the radius of the roller brush 20, so as to reduce the vacuum area on both sides of the air duct and prevent hair from staying here and causing secondary entanglement of the roller brush.

[0063] See also Figure 1 , Figures 5 to 10 As shown, in the present embodiment, the air duct assembly includes a first side wall 421 and a second side wall 422 facing the target cleaning surface, and the first side wall 421 and the second side wall 422 are relatively arranged between the two roller brushes 20, and the first side wall 421 is arranged on a side of the roller brush 20 close to the inner side of the floor brush body 10, that is, the first side wall is arranged on a side close to the rear roller brush 201, and the second side wall 422 is arranged on a side close to the front roller brush 202, and a sewage suction port 42 facing the target cleaning surface is formed between the first side wall 421 and the second side wall 422, so that the formed sewage suction port 42 is located between the two roller brushes 20 and faces the target cleaning surface, so as to ensure that the hair peeled off by the tooth comb can be smoothly sucked away through the sewage suction port 42.

[0064] It can be understood that the lower edge of the first side wall 421 is configured as the lowest end of the air duct assembly, that is, the lower edge of the first side wall 421 is the lowest end of the sewage suction port 42. Therefore, the height between the lower edge of the first side wall 421 and the center axis L of the roller brush 20 is less than or equal to the radius of the roller brush 20, so as to further reduce the vacuum area on both sides of the air duct to prevent hair from staying here and causing secondary entanglement of the roller brush.

[0065] See also Figure 1 , Figures 5 to 10 As shown, in this embodiment, the air duct assembly also includes a third side wall 423 and a fourth side wall 424 facing the target cleaning surface. The third side wall 423 and the fourth side wall 424 are located on both sides of the axial direction of the floor brush body 10, and form a sewage suction port 42 facing the target cleaning surface together with the first side wall 421 and the second side wall 422.

[0066] To prevent garbage and sewage from remaining on the ground, the front and rear sides of the air inlet position of the air duct of the floor scrubber are sealed from the ground by roller brushes 20 or plastic parts, and only the air inlets 21 on both sides can take in air. Therefore, in order to avoid the problem of large air volume on both sides near the suction port 42 at the lower end of the floor brush assembly, small air volume in the middle, or even almost no air volume, the suction port 42 is set toward the target cleaning surface, for example, the suction port 42 extends in the vertical direction.

[0067] Furthermore, the sewage suction port 42 should be set to a trumpet shape as much as possible, and the air volume on both sides should be gathered as much as possible to the middle area close to the sewage suction port 42 to increase the air volume in this area and prevent sewage and small particles of garbage from remaining in the middle part of the floor brush.

[0068] Therefore, it can be understood that the distance between the third side wall 423 and the fourth side wall 424 gradually increases in the direction toward the target cleaning surface, so that the air volume entering from the air inlets 21 on both sides of the floor brush body 10 is gathered as close to the middle area as possible at the lower end of the roller brush, thereby increasing the air volume in the middle area and preventing sewage and small particles of garbage from remaining in the middle part of the floor brush.

[0069] At the same time, in order to further ensure the sewage suction effect of the sewage suction port 42, the angle α between the third side wall 423 and the fourth side wall 424 and the horizontal plane is set to be greater than or equal to 5°, that is, by reasonably setting the slope of the sewage suction port 42, it is avoided that the air volume on both sides of the lower end of the roller brush close to the sewage suction port 42 is large, the air volume in the middle is small, or even almost no air volume problem, thereby ensuring that the air volume in the air duct 40 is as uniform as possible, thereby ensuring the sewage suction effect of the sewage suction port 42.

[0070] It can be understood that in order to further ensure that the suction port 42 can smoothly suck away impurities such as hair, in the present embodiment, the minimum distance a between the two roller brushes 20 is set to satisfy the relationship: 2mm≤a≤10mm. It can be understood that the minimum distance a is the distance between the edges of the two roller brushes 20 that are close to each other on the plane where the axis L is located, so as to ensure that there is enough air volume in the air duct above the roller brush 20 to carry away the hair, and at the same time ensure that there is a certain flow velocity in the area above the axis L of the roller brush 20, that is, the comb stripping point. For example, the wind speed in this area can reach more than 8m / s, so that it can quickly carry away the hair stripped by the comb.

[0071] See also Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in this embodiment, the air duct 41 includes a top wall 412 and a bottom wall 411 disposed on the upper end of the roller brush 20 , one end of the bottom wall 411 is connected to the first side wall 421 , and one end of the top wall 412 is connected to the second side wall 422 .

[0072] In order to further ensure that the air volume and wind speed in the air duct 40 remain evenly distributed, in the present embodiment, the inner diameter r1 of at least a portion of the air duct 41 close to the sewage suction port 42 gradually decreases in the direction away from the sewage suction port 42. For example, the air duct 41 is configured as a trumpet-shaped structure to ensure that the air volume in the duct is evenly distributed, thereby ensuring the sewage suction effect of the floor brush assembly.

[0073] Furthermore, from the central cross-section of the floor brush body 10, the distance between the intersection of the axis line of the axis of the inner roller brush 20 of the floor brush body 10 and the top wall 412 and the bottom wall 411 is configured as d2, that is, the distance between the intersection of the same axis line through the rear roller brush 201 and the top wall 412 and the bottom wall 411 is configured as d2, wherein the central cross-section is configured to be perpendicular to the target cleaning surface, and extends along the radial direction of the roller brush 20 and passes through the middle position of the floor brush body 10. For example, the intersection of the axis lines M1, M2, M3 of the rear roller brush 201 and the top wall 412 is A, the intersection of the axis lines M1, M2, M3 and the bottom wall 411 is B, and the distance between the intersection A and the intersection B is d2, which satisfies the relationship: 13mm≤d2≤20mm, so that the height of the air duct 41 is maintained within a reasonable range, so that it can ensure a higher suction and flow rate in the pipeline, while also ensuring that the air volume is as uniform as possible, and preventing large garbage from getting stuck in the pipeline.

[0074] It is understandable that, in order to further ensure the smoothness of the air duct 40, in this embodiment, the heights of the various regions of the air duct 41 are set to be substantially the same, so that the air duct 40 is smoother and the suction loss can be minimized. It is also understandable that the inner wall of the air duct 41 is set to a smooth surface, that is, the inner surfaces of the bottom wall 411 and the top wall 412 are set to a smooth surface, so as to further increase the smoothness of the air duct 40 and reduce the suction loss.

[0075] See also Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in the present embodiment, the width d3 of the connection between the top wall 411 and the first side wall 421 is greater than or equal to 50 mm. It can be understood that the width of the connection between the top wall 411 and the first side wall 421 is the width of the connection between the sewage suction port 42 and the air duct 41. The width d3 refers to the length of the connection between the top wall 411 and the first side wall 421 along the axial direction of the roller brush 20, so as to ensure that there is enough air volume entering the air duct 41, thereby ensuring that hair and other garbage can be smoothly sucked away, and also preventing the size of the connection between the air duct 41 and the sewage suction port 42 from being too small, causing large garbage to be stuck at the connection, thereby preventing the air duct 40 from being blocked.

[0076] See also Fig.11As shown, since air inlets 21 are provided on both sides of the floor brush body 10, the airflows entering from the air inlets 21 on both sides converge in the middle of the air duct 40 to collide and form vortices, which will affect the suction force of the air duct 40 on impurities such as hair, thereby affecting its cleaning effect.

[0077] Therefore, in this embodiment, a guide portion 43 is provided inside the air duct 40, and the guide portion 43 is used to disturb the airflow entering the air duct to break up the vortex in the middle of the air duct, thereby making the airflow in the middle of the air duct smoother.

[0078] Specifically, the guide portion 43 is arranged in the air duct 41. For example, the guide portion 43 includes a first guide rib 431 and a second guide rib 432 located on both sides of the first guide rib 431. The first guide rib 431 is arranged on the inner side of the top wall 411 of the air duct 41 and intersects with the axial direction of the roller brush 20. The second guide rib 432 is located on both sides of the first guide rib 431 and extends toward the air inlets 21 on both sides of the floor brush body 10 respectively, so as to break the vortex formed in the middle of the air duct 41 due to the collision of the air flows entering from the air inlets 21 on both sides converging in the middle of the air duct 40, so as to make the air flow in the middle of the air duct 40 smoother, thereby ensuring its cleaning effect.

[0079] Of course, in some other embodiments, the top wall of the air duct 41 can also be set as a concave-convex structure, and the arrangement of the concave-convex structure is the same or similar to the arrangement and structure of the guide part 43, so as to guide the airflow in the air duct 41 to make the entire airflow smoother, thereby ensuring its cleaning effect.

[0080] After the air duct structure of the floor brush assembly 100 is optimized, it can be clearly seen that the overall flow velocity in the air duct is relatively uniform, and the vacuum area or eddy current area on both sides and in the middle is significantly reduced, thereby effectively improving the suction force of the floor brush assembly 100 on impurities such as hair, thereby effectively solving the problem of hair entangled in the roller brush 20 and improving the cleaning effect of the floor brush assembly 100.

[0081] See also Figure 5 and Figure 6 As shown, in the present embodiment, two tooth-comb scraping strips 30 are installed on the floor brush body 10 and are located between the two roller brushes 20. Specifically, the two tooth-comb scraping strips 30 are located on both sides of the sewage suction port 42, and the two tooth-comb scraping strips 30 are respectively interference fit with the implanted hair on the two roller brushes 20, so as to peel off the hair entangled on the roller brush 20 through the tooth-comb scraping strips 30.

[0082] It is understandable that the two tooth-comb scraping strips 30 are respectively a front scraping strip 32 installed on the second side wall 422 and a rear scraping strip 31 installed on the first side wall 421, and the rear scraping strip 32 and the front scraping strip 31 are respectively interference fit with the implanted hair on the rear roller brush 202 and the front roller brush 201, so as to be used to peel the hair on the rear roller brush 202 and the front roller brush 201. It should be noted that the material of the tooth-comb scraping strip 30 is not limited, and it can be metal, plastic parts, soft rubber materials, etc.; the form of the tooth-comb scraping strip 30 is not limited, and it can be tooth comb-shaped, whole strip-shaped, etc., and the positional relationship between the tooth-comb scraping strip 30 and the roller brush 20 can be relatively fixed or relatively movable within a certain range.

[0083] See also Figure 5 and Figure 6 As shown, in the present embodiment, the installation position of the tooth comb scraper 30 needs to be ensured to be above the central axis L of the roller brush 20, so as to ensure the effect of the tooth comb scraper 30 in stripping hair, that is, the lowest point of the tooth comb scraper 30 is located above the central axis L of the roller brush 20, and the lowest point of the tooth comb scraper 30 refers to the point where the tooth comb scraper 30 first contacts the roller brush 20 along the rotation direction of the roller brush 20. By reasonably designing the position of the tooth comb scraper 30, it is possible to extend the suction time on the hair adhered to the roller brush 20, and it is also possible to make the hair adhered to the roller brush 20 After reaching or exceeding 1 / 4 circle of the roller brush, the hair originally tightly attached to the roller brush 20 will be partially separated. At this time, the tooth comb scraper 30 is easy to strip off the hair, thereby ensuring that the hair is not easily entangled on the roller brush 20.

[0084] See also Figure 5 and Figure 6 As shown, in this embodiment, the line between the lowest point of the tooth comb scraper 30 and the axis of the roller brush 20 is L1, and the line between the axes of the two roller brushes 20 is L2. The angle θ formed between L1 and L2 is less than or equal to 45°, so as to improve the effect and efficiency of the tooth comb scraper 30 in stripping the hair on the roller brush 20. At the same time, the above-mentioned setting can also affect the direction of the air intake, thereby ensuring a more uniform air volume. It should also be noted that when the floor brush assembly 100 is in normal operation, the point where the tooth comb scraper 30 first contacts the roller brush 20 always maintains an interference state with the roller brush 20, and the suction force at this position is large and the flow rate is high. At the same time, the direction of hair stripping by the tooth comb is in the same direction as the suction force. The two effects are superimposed, making the hair stripping more efficient; furthermore, after the hair attached to the roller brush 20 exceeds 1 / 4 of the roller brush, the hair originally attached to the roller brush upper assembly 20 will be partially separated, making the hair easier to strip.

[0085] See also Figure 5 and Figure 6As shown, in the present embodiment, the maximum interference point between the tooth comb scraper bar 30 and the roller brush 20 is located at the end of the tooth comb scraper bar 30 on the side close to the sewage suction port 42 of the floor brush assembly 100, that is, the interference point between the tooth comb scraper bar 30 and the roller brush 20 needs to be located on the side of the tooth comb scraper bar 30 close to the sewage suction port 42, and the interference amount between the tooth comb scraper bar 30 and the roller brush 20 remains consistent or gradually increases along the direction close to the sewage suction port 42. The position of the maximum interference point between the tooth comb scraper bar 30 and the roller brush 20 is reasonably designed to prevent the maximum interference point from being too far back, causing the hair to be clamped between the roller brush 20 and the tooth comb scraper bar 30 and difficult to peel off, thereby ensuring its hair peeling effect.

[0086] See also Figure 5 and Figure 6 As shown, in this embodiment, the maximum interference point between the rear scraper strip 32 and the rear roller brush 201 is located on the outside of the suction port 42, that is, the first side wall 421 of the maximum interference point is away from the side of the second side wall 422, so that when the hair passes through this area, it is directly brought to the dirty pipe by the suction force, and is not easily rolled between the tooth comb scraper strip 30 and the roller brush 20 by the roller brush 20, thereby causing hair residue.

[0087] Furthermore, in this embodiment, the distance between the front scraper strip 32 and the rear scraper strip 31 should be ensured to be greater than or equal to 8 mm to prevent large particles of garbage such as melon seed shells and fruit shells from being stuck in the middle, making them difficult to clean and causing blockage in the air duct. At the same time, the above-mentioned setting can also affect the direction of the incoming air, thereby ensuring a more uniform air volume, thereby affecting the overall cleaning effect.

[0088] It should be noted that the position limitation of the above-mentioned tooth comb scraper 30 can ensure the stripping of hair, but if the stripped hair cannot be sucked into the sewage bucket in time and accumulates at the sewage suction port for a long time, the high-speed rotating roller brush 20 may still wrap the hair hidden in the sewage suction port 42 stripped by the tooth comb scraper 30 around the roller brush 20 again, making it difficult to clean, so it is necessary to ensure that there is enough air volume to take away the hair here; while in the traditional double-roller cleaning component, the hair between the two roller brushes is closely attached, with almost no gap or very small gap, resulting in a high vacuum degree but a small air volume, which can only draw in and take away particles and sewage with relatively large density, but the force on fluffy and low-density objects such as hair and pet hair is very small. To achieve the instantaneous removal of low-density substances such as hair, sufficient air volume must be ensured. Due to the limited width of the floor brush, that is, the length of the connection between the sewage suction port 42 and the air duct 41 is limited.

[0089] Therefore, in this embodiment, after the whole machine works normally until the roller brush 20 is evenly moistened and reaches a stable state, the minimum distance between the two roller brushes 20 should be greater than or equal to 2 mm to ensure sufficient air inlet area, thereby ensuring sufficient air volume so that the hair can be taken away instantly, preventing the hair from being retained in the suction port and causing secondary entanglement.

[0090] In some other embodiments, the above-mentioned floor brush assembly can also be used in conjunction with other methods to enhance the force on the hair. For example, the air volume at the suction port can be increased. The air volume can be increased by increasing the power of the entire machine to increase the stripping force on the hair and instantly take away the hair. For example, a hair anti-entanglement mode can be added to the entire machine. The mode can be switched manually when sucking low-density materials such as hair, thereby increasing the power of the entire machine and stripping away the hair. For example, automatic hair recognition technology such as adding a camera to the front end of the floor brush and matching a sensor at the front end of the air inlet duct can be used. When hair is detected entering the suction port, the power of the entire machine is automatically increased, and the air volume is increased to strip and take away the hair. When no hair or dirt is detected, the power is automatically reduced and switched back to normal state to enhance the suction force on the hair.

[0091] The utility model also provides a cleaning device, including a body and a floor brush assembly 100. A sewage tank and a sewage suction pipe connected to the sewage tank are arranged in the body, and the sewage suction pipe is connected to the air duct 40 of the floor brush assembly 100 to suck the dirt on the target cleaning surface into the sewage tank. The floor brush assembly is similar or identical to the structure described in the above embodiment, and will not be described again to avoid repetition.

[0092] The utility model proposes a floor brush assembly and a cleaning device, which reasonably designs the height and area of ​​the air inlet, the shape and size of the air duct to ensure that the floor brush suction port has sufficient suction force, while reducing the vacuum area in the middle of the roller brush close to the ground and reducing the vacuum areas on both sides of the air duct to prevent hair from staying here and causing secondary entanglement of the roller brush, thereby ensuring its cleaning effect; at the same time, the position of the tooth comb scraper is reasonably designed to ensure the stripping effect and stripping efficiency of the tooth comb scraper on the roller brush; and effectively prevent hair from being entangled in the roller brush, so that the roller brush is easy to clean and maintenance-free, does not affect the service life of the roller brush, can reduce costs, and can also improve the cleaning effect of the whole machine.

[0093] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope involved in the present application is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the concept of the utility model, such as a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0094] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A floor brush assembly, characterized in that: include: A floor brush body, wherein an air duct is arranged in the floor brush body; At least two roller brushes are rotatably mounted at the bottom of the floor brush body and are located on the same side of the floor brush body. Air inlets are respectively provided on the opposite sides of the floor brush body. The two air inlets are distributed along the axial direction of the roller brush. The air inlets are connected to the air duct, and the height of the air inlets is less than or equal to the radius of the roller brush.

2. The floor brush assembly according to claim 1, characterized in that: The air inlet is opened between the two roller brushes.

3. The floor brush assembly according to claim 2, characterized in that: Connecting plates are arranged on both sides of the floor brush body, and the lower edge of the connecting plate, the outer circumference of the two roller brushes intersecting and relatively adjacent to the lower edge of the connecting plate, and the line between the lowest points of the two roller brushes enclose the air inlet.

4. The floor brush assembly according to claim 3, characterized in that: The distance between the lower edge of the connecting plate and the line connecting the lowest points of the two rolling brushes is less than or equal to the radius of the rolling brush.

5. The floor brush assembly according to claim 3, characterized in that: The sum of the areas of the two air inlets on both sides of the floor brush body is S, which satisfies the relationship: 200mm 2 ≤S<800mm 2 .

6. The floor brush assembly according to claim 3, characterized in that: The minimum distance between the two roller brushes is a, which satisfies the relationship: 2mm≤a≤10mm.

7. The floor brush assembly according to claim 4, characterized in that: It includes an air duct component, which is formed at the upper end of the floor brush body. The air duct component is formed with a sewage suction port facing the target cleaning surface. The height between the lowest end of the sewage suction port facing the target cleaning surface and the axis of the roller brush is less than or equal to the radius of the roller brush.

8. The floor brush assembly according to claim 7, characterized in that: The air duct assembly includes a first side wall and a second side wall facing the target cleaning surface, the first side wall and the second side wall are relatively arranged between the two roller brushes, the first side wall is arranged on a side of the roller brush close to the inner side of the floor brush body, and the first side wall and the second side wall form the sewage suction port facing the target cleaning surface.

9. The floor brush assembly according to claim 8, characterized in that: The lower edge of the first side wall is configured as the lowest end of the air duct assembly, and the height between the lower edge of the first side wall and the axis of the roller brush is less than or equal to the radius of the roller brush.

10. The floor brush assembly according to claim 8, characterized in that: The air duct assembly includes a third side wall and a fourth side wall facing the target cleaning surface, the third side wall and the fourth side wall are located on both sides of the axial direction of the floor brush body, and form the sewage suction port facing the target cleaning surface together with the first side wall and the second side wall, and the distance between the third side wall and the fourth side wall gradually increases in the direction toward the target cleaning surface.

11. The floor brush assembly according to claim 10, characterized in that: The included angles between the third side wall and the fourth side wall and the horizontal plane are set to be greater than or equal to 5°.

12. The floor brush assembly according to claim 8, characterized in that: The air duct assembly further includes an air duct, the sewage suction port is connected to the air duct, and the sewage suction port and the air duct form the air duct; The air duct includes a top wall and a bottom wall arranged at the upper end of the roller brush, one end of the bottom wall is connected to the first side wall, and one end of the top wall is connected to the second side wall; From the central section of the floor brush body, the distance between the intersection of the axis line of the axis of the roller brush on the inner side of the floor brush body and the top wall and the bottom wall is configured as d2, which satisfies the relationship: 13mm≤d2≤20mm, wherein the central section is configured to be perpendicular to the target cleaning surface, and extends along the radial direction of the roller brush and passes through the middle position of the floor brush body.

13. The floor brush assembly according to claim 12, characterized in that: The width of the connection between the top wall and the first side wall is greater than or equal to 50 mm.

14. The floor brush assembly according to claim 12, characterized in that: A flow guide is provided inside the air duct, and the flow guide is used to disturb the airflow entering the air duct.

15. The floor brush assembly according to claim 14, characterized in that: A flow guide is provided in the air duct, and the flow guide is used to disturb the airflow entering the air duct.

16. The floor brush assembly according to claim 15, characterized in that: The guide portion includes a first guide rib arranged on the inner side of the top wall and intersecting the roller brush axially, and a second guide rib arranged on both sides of the first guide rib and extending toward the air inlets on both sides of the floor brush body respectively.

17. The floor brush assembly according to claim 8, characterized in that: It comprises at least two tooth-comb scraping strips, which are respectively a front scraping strip installed on the second side wall and a rear scraping strip installed on the first side wall, and the front scraping strip and the rear scraping strip are respectively interference fit with the implanted hair on the two roller brushes, and the lowest point of the tooth-comb scraping strip is located above the central axis of the roller brush.

18. The floor brush assembly according to claim 17, characterized in that: The line between the lowest point of the tooth comb scraper strip and the axis of the roller brush is L1, and the line between the two axes of the roller brushes is L2, wherein the angle formed between L1 and L2 is less than or equal to 45°.

19. The floor brush assembly according to claim 17, characterized in that: The distance between the front scraper strip and the rear scraper strip is greater than or equal to 8 mm.

20. A cleaning device, characterized in that: It comprises a body and a floor brush assembly as described in any one of claims 1 to 19, wherein a sewage tank and a sewage suction pipe connected to the sewage tank are arranged in the body, and the sewage suction pipe is connected to the air duct of the floor brush assembly for sucking dirt on the target cleaning surface into the sewage tank.

Images