Floor brush for vacuum cleaner and vacuum cleaner

Abstract

The present application proposes a floor brush for a vacuum cleaner and a vacuum cleaner, the floor brush comprising: a shell and a bottom plate, the shell and the bottom plate together enclose a suction chamber for accommodating a roller brush, the bottom plate is provided with a suction port connected to the suction chamber, and a rear transverse region located behind the suction port when the floor brush is pushed forward; wherein the floor brush is provided with a transverse blocking structure in the rear transverse region, the transverse blocking structure being configured to restrict particles flying out of the suction port from bypassing the transverse blocking structure and leaving the rear transverse region. Through the transverse blocking structure, most of the particles blown away by the roller brush can be confined within the range of the floor brush, preventing the particles from scattering, thereby improving the cleaning energy efficiency.

Description

[Technical field]

[0001] The present application relates to the field of vacuum cleaners, and in particular to a floor brush for a vacuum cleaner and a vacuum cleaner comprising the floor brush. [Background technology]

[0002] The floor brush is an important part of the vacuum cleaner, used to absorb various dirt on the floor to be cleaned. The performance of the vacuum cleaner depends largely on the dust collection efficiency of the floor brush. With the recent update of the European vacuum cleaner performance standard, the market needs floor brushes and corresponding vacuum cleaners that meet the updated standards.

[0003] The floor brushes of vacuum cleaners currently on the market often rotate at a relatively high speed when in operation. Inevitably, some particles that were originally to be sucked into the suction chamber are blown away and scattered by the roller brush, which makes it difficult to meet the performance standards of the vacuum cleaner and also causes great inconvenience to the user.

[0004] Unless there is sufficient evidence to support it, the prior art described herein does not mean that the prior art is known to ordinary technicians in the field involved in this application before the filing date of this application. [Summary of the invention]

[0005] One purpose of the embodiments of the present application is to propose an improved floor brush for a vacuum cleaner and a vacuum cleaner including the floor brush, in response to at least one of the above technical problems and / or other possible technical problems not mentioned in the present application.

[0006] According to the first aspect of the present application, there is provided a floor brush for a vacuum cleaner, the floor brush comprising: a shell; and a bottom plate, the shell and the bottom plate together enclose a suction chamber for accommodating a roller brush, the bottom plate is provided with a suction port connected to the suction chamber, and a rear transverse region located at the rear side of the suction port when the floor brush is pushed forward; wherein the floor brush is provided with a transverse blocking structure in the rear transverse region, the transverse blocking structure being configured to restrict particles flying out of the suction port from bypassing the transverse blocking structure and leaving the rear transverse region. Through the transverse blocking structure, most of the particles blown away by the roller brush can be confined within the range of the floor brush to prevent the particles from scattering.

[0007] According to an optional embodiment of the present application, the rear transverse region forms an ash storage space for accommodating particles between the transverse blocking structure and the air suction port, so that the blocked particles are not easily stuck between the bottom plate and the ground, and will not cause wear.

[0008] According to an optional embodiment of the present application, the ash storage space is distributed over the entire lateral dimension span of the air suction port.

[0009] According to an optional embodiment of the present application, the ash storage space is formed by the upward concavity of the rear lateral area, and ends at the lateral blocking structure.

[0010] According to an optional embodiment of the present application, the transverse blocking structure includes a blocking surface and an extension surface; the ash storage space ends at the blocking surface; the extension surface is configured to be arranged obliquely relative to the bottom plane of the bottom plate. The inclined setting of the extension surface makes it easier for particles at the rear side of the transverse blocking structure to slide into the ash storage space when the floor brush is in a rearward pulled state.

[0011] According to an optional embodiment of the present application, the blocking surface and the top surface of the ash storage space are smoothly transitioned.

[0012] According to an optional embodiment of the present application, the extension surface forms an angle of 10-30° with respect to the bottom plane.

[0013] According to an optional embodiment of the present application, the air suction port has a transverse sealing structure at the rear side when the floor brush is pushed forward, and the transverse sealing structure is configured to facilitate particles to bypass the transverse sealing structure and enter the air suction port when the floor brush is pulled back. The transverse sealing structure can improve the sealing state between the floor brush and the floor to be cleaned.

[0014] According to an optional embodiment of the present application, the transverse sealing structure forms an angle of 10-30° relative to the bottom plane of the bottom plate.

[0015] According to an optional embodiment of the present application, the distance between the lowest point of the transverse sealing structure and the ground is between 2.9-3.3 mm.

[0016] According to an optional embodiment of the present application, the transverse sealing structure is at least partially made of an elastically deformable material.

[0017] According to an optional embodiment of the present application, the floor brush is provided with corresponding side blocking structures at two opposite lateral edges of the bottom plate along the ash storage space, respectively. The side blocking structures can limit particles from flying out from the sides.

[0018] According to a second aspect of the present application, a vacuum cleaner is provided, comprising the floor brush for a vacuum cleaner according to the first aspect of the present application.

[0019] It should be pointed out here that the “first” and “second” appearing in this specification are only used for descriptive purposes and are not used to indicate relative importance; moreover, they are not a definition of the quantity of the features they define; in addition, they are not a definition of the logical or sequential relationship of the features they define.

[0020] The above technical solutions of the present application are not intended to describe all possible implementations of the present application. Throughout the application, guidance is provided by listing examples in many places, and these examples can be used in various feasible combinations.

Brief Description of the Drawings

[0021] The following drawings are only used to illustrate and explain the present application, and do not limit the scope of the present application, wherein:

[0022] Figure 1 A front view of a floor brush 1 for a vacuum cleaner according to an exemplary embodiment of the present application is shown;

[0023] Figure 2 Shows Figure 1 A cross-sectional view of the floor brush 1 along AA;

[0024] Figure 3 Shows Figure 2 A partial enlarged view of part B.

[0025] Reference numerals:

[0026] 1-floor brush, 11-shell, 12-bottom plate, 121-rear lateral area, 122-ash storage space, 13-roller brush, 14-air suction port, 141-lateral sealing structure, 15-lateral blocking structure, 151-blocking surface, 152-extension surface, 16-side blocking structure. [Specific implementation method]

[0027] In order to make the purpose, scheme and beneficial effects of the present application more clear, the present application is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0028] Theoretically, in order to improve the vacuuming efficiency, the height of the floor brush bottom plate can be lowered to increase the vacuum degree at the air inlet, thereby increasing the suction power of the floor brush. However, when a floor brush with a lowered bottom plate is used on the floor, large particles often cannot enter the air inlet, but get stuck between the bottom plate and the ground, which easily wears out the floor brush bottom plate. Therefore, many vacuum cleaners have a certain height between the floor brush bottom plate and the ground, but this immediately brings about the problem of particles easily splashing when the vacuum cleaner is working, especially the particles that are blown backwards by the rotating roller brush.

[0029] Figure 1 A front view of a floor brush 1 for a vacuum cleaner according to an exemplary embodiment of the present application is shown. Figure 2 Shows Figure 1 A cross-sectional view of the floor brush 1 along AA, Figure 3 Shows Figure 2 A partial enlarged view of part B.

[0030] According to an exemplary embodiment of the present application, Figure 1 As shown, the floor brush 1 includes a shell 11 and a base plate 12. The shell 11 and the base plate 12 together enclose a suction chamber, in which a roller brush 13 for cleaning the floor is housed. The base plate 12 is provided with a suction port 14 connected to the suction chamber. When the floor brush 1 is working, the roller brush 13 brings up particles on the floor to be cleaned and waits for cleaning objects to be sucked into the suction port 14 and into the suction chamber through the negative pressure formed near the suction port 14. According to the movement direction of the floor brush 1 when working on the floor to be cleaned (for example, a floor or carpet, etc.), the floor brush 1 has a forward push state and a backward pull state.

[0031] The bottom plate 12 has a front transverse region, a rear transverse region 121 and two opposite lateral edges, wherein Figure 1 As shown, the rear transverse region 121 is located at the rear side of the air suction port 14 when the floor brush 1 is pushed forward. The front transverse region, the rear transverse region 121 and the two lateral edges together constitute the circumferential contour of the air suction port 14.

[0032] The floor brush 1 is provided with a transverse blocking structure 15 in the area of ​​the rear transverse area 121. The transverse blocking structure 15 can limit the range of particles that are blown away by the roller brush 13, especially those that splash toward the rear side of the air suction port 14, from leaving the bottom plate 12 to prevent the particles from scattering.

[0033] According to an exemplary embodiment of the present application, Figure 3 As shown, the rear transverse region 121 forms an ash storage space 122 for accommodating particles between the transverse blocking structure 15 and the air inlet 14. As a result, the blocked particles are not easily stuck between the bottom plate 12 and the ground, and will not cause wear. In this embodiment, the rear transverse region 121 at least includes the ash storage space 122 and the area where the transverse blocking structure 15 is located.

[0034] According to an exemplary embodiment of the present application, the ash storage space 122 is distributed over the entire transverse dimension of the air suction port 14. This makes it easier to accommodate particles that are blown away over the entire transverse dimension.

[0035] According to an exemplary embodiment of the present application, Figure 3 As shown, the ash storage space 122 is formed by the rear lateral region 121 being upwardly concave, and finally the lateral blocking structure 15. Thus, the particles flying out of the air suction port 14 are blocked by the lateral blocking structure 15 and remain in the ash storage space 122.

[0036] Furthermore, if Figure 3 As shown, the transverse blocking structure 15 includes a blocking surface 151 and an extension surface 152, and the ash storage space 122 ends at the blocking surface 151. Specifically, the blocking surface 151 extends downward from the top surface of the ash storage space 122 away from the suction port 14 to limit the particles that are blown away in the ash storage space 122.

[0037] Furthermore, the plane where the bottom plate 12 is roughly located can be referred to as the bottom plane (not shown). The extension surface 152 can be configured to be arranged obliquely relative to the bottom plane of the bottom plate 12, and in particular, to be arranged obliquely toward the bottom of the ash storage space 122. In this way, when the floor brush 1 is in the rearward state, it is convenient for particles originally located behind the ash storage space 122 to enter the ash storage space 122 along the extension surface 152, thereby improving the cleaning efficiency of the floor brush 1.

[0038] Alternatively, if Figure 3 As shown, the blocking surface 151 and the top surface of the ash storage space 122 have a smooth transition, which can reduce the possibility of dust deposition at the transition position. Here, the blocking surface 151 and the top surface of the ash storage space 122 can be integrally formed.

[0039] Optionally, the extension surface 152 is at an angle of 10-30° relative to the bottom plane. Thus, when the floor brush 1 is working on the surface to be cleaned, such as the floor, the extension surface 152 is also at an angle of 10-30° relative to the surface to be cleaned. This angle enables the particles behind to bypass the extension surface 152 and enter the dust storage space 122, thereby improving the cleaning efficiency of the floor brush 1.

[0040] According to an exemplary embodiment of the present application, the air suction port 14 has a transverse sealing structure 141 at the rear side when the floor brush 1 is pushed forward. Figure 3 As shown, the ash storage space 122 refers to the space between the transverse sealing structure 141 and the transverse blocking structure 15. The transverse sealing structure 141 is provided here to reduce the height of the bottom plate 12 from the floor to be cleaned, so as to improve the sealing state between the bottom plate 12, especially the rear transverse edge thereof along the air suction port 14 and the floor to be cleaned, increase the vacuum degree at the air suction port 14, and thus improve the cleaning efficiency of the floor brush 1 on the floor to be cleaned. At the same time, the transverse sealing structure 141 is constructed to facilitate the particles in the ash storage space 122 to bypass it and enter the air suction port 14 when the floor brush 1 is in the rearward pulling state.

[0041] Optionally, the transverse sealing structure 141 is at an angle of 10-30° relative to the bottom plane of the bottom plate 12. This angle enables particles to bypass the transverse sealing structure 141 and enter the air suction port 14, and can also improve the seal between the bottom plate 12 and the floor to be cleaned without (significantly) increasing the movement resistance of the floor brush 1. In particular, the transverse sealing structure 141 is at an angle of about 20° relative to the bottom plane.

[0042] Optionally, the distance between the lowest point of the transverse sealing structure 141 and the ground is between 2.9-3.3 mm, which allows most particles to pass through and enter the air suction port 14.

[0043] Optionally, the transverse sealing structure 141 is at least partially made of an elastically deformable material. In particular, the transverse sealing structure 141 is a transverse sealing structure at least partially made of a material having a hardness in the range of SHA 50 to 60. The material in this hardness range ensures that the elastic deformation of the transverse sealing structure 141 can facilitate the particles to bypass, and prevents the transverse sealing structure 141 from being too soft so that the particles are trapped in it and cannot enter the air inlet 14. Further preferably, the distance between the lowest point of the transverse sealing structure 141 and the ground can be less than 2.9 mm.

[0044] According to an exemplary embodiment of the present application, Figure 2 and 3 As shown, the floor brush 1 is provided with corresponding side blocking structures 16 at the areas along the two opposite lateral edges of the ash storage space 122 of the bottom plate 12. In this embodiment, the ash storage space 122 is surrounded by the transverse sealing structure 141, the transverse blocking structure 15 and the two side blocking structures 16, which can limit particles from flying out of the side of the ash storage space 122. Furthermore, the side blocking structure 16 can also continue to extend and be arranged on the size span of the entire lateral edge of the air suction port 14.

[0045] The present application also provides a vacuum cleaner comprising the above-mentioned floor brush 1. The connection between the floor brush 1 and other components of the vacuum cleaner is known in the art and will not be described in detail here. The advantages described for the floor brush 1 according to the present application are also applicable to the vacuum cleaner according to the present application.

[0046] The components of different embodiments may be combined with each other in any feasible manner to achieve the purpose of this application.

[0047] It should be noted that the present application should not be understood as being limited to the above-described implementation methods, but should be understood as covering all possible implementations determined by the claims of the present application in combination with the disclosure of the specification. Therefore, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the present application shall fall within the protection scope of the present application.

Claims

1. A floor brush for a vacuum cleaner, characterized in that: The floor brush comprises: a housing; and A bottom plate, wherein the shell and the bottom plate together enclose an air suction cavity for accommodating a roller brush, and the bottom plate is provided with an air suction port connected to the air suction cavity, and a rear lateral area located behind the air suction port when the floor brush is in a forward-pushed state; Wherein, the floor brush is provided with a transverse blocking structure in the rear transverse region, and the transverse blocking structure is constructed to be suitable for restricting particles flying out of the air suction port from bypassing the transverse blocking structure and leaving the rear transverse region.

2. The floor brush for a vacuum cleaner according to claim 1, characterized in that: The rear transverse region forms an ash storage space for accommodating particles between the transverse blocking structure and the air suction port.

3. The floor brush for a vacuum cleaner according to claim 2, characterized in that: The ash storage space is distributed over the entire transverse dimension span of the air suction port.

4. The floor brush for a vacuum cleaner according to claim 2, characterized in that: The ash storage space is formed by the rear lateral area being concave upwards and ends at the lateral blocking structure.

5. The floor brush for a vacuum cleaner according to claim 4, characterized in that: The lateral blocking structure comprises a blocking surface and an extension surface; The ash storage space ends at the blocking surface; The expansion surface is configured to be arranged obliquely with respect to a bottom plane of the base plate.

6. The floor brush for a vacuum cleaner according to claim 5, characterized in that: The blocking surface and the top surface of the ash storage space have a smooth transition; and / or The extended surface forms an angle of 10-30° relative to the bottom plane.

7. The floor brush for a vacuum cleaner according to claim 1, characterized in that: The air suction port has a transverse sealing structure located at the rear side when the floor brush is pushed forward, and the transverse sealing structure is configured to facilitate particles to bypass the transverse sealing structure and enter the air suction port when the floor brush is pulled backward.

8. The floor brush for a vacuum cleaner according to claim 7, characterized in that: The transverse sealing structure is at an angle of 10-30° relative to the bottom plane of the bottom plate; and / or The distance between the lowest point of the transverse sealing structure and the ground is between 2.9-3.3 mm; and / or The transverse sealing structure is at least partially made of an elastically deformable material.

9. The floor brush for a vacuum cleaner according to claim 2, characterized in that: The floor brush is provided with corresponding side blocking structures at areas of the bottom plate along two opposite lateral edges of the ash storage space.

10. A vacuum cleaner, characterized in that: The vacuum cleaner comprises the floor brush for a vacuum cleaner according to any one of claims 1-9.

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