A brush assembly and a vacuum cleaner

Abstract

The application discloses a brush assembly and a dust collector, and belongs to the dust collector field.The brush assembly comprises a shell, a rolling brush assembly, a comb tooth, a stress block and a hair pushing piece.The rolling brush assembly comprises a rolling brush body and brush hair.The comb tooth is arranged along the length direction of the rolling brush body and close to the front end of the rolling brush assembly.The comb tooth and the stress block interact, and the comb tooth can move away from the rolling brush after the stress block receives the thrust force towards the rolling brush assembly.The hair pushing piece can clean the garbage wound on the comb tooth during the movement of the comb tooth.According to the application, the operator can clean the garbage wound on the comb tooth in time, and the operation is convenient and effective.

Description

Technical Field

[0001] This invention relates to the field of vacuum cleaners, and more particularly to the field of vacuum cleaner floor brushes. Background Technology

[0002] Vacuum cleaners, as essential cleaning tools in homes and workplaces, are becoming increasingly widespread and their functions are becoming more sophisticated. The floor brush assembly of a vacuum cleaner typically includes a roller brush. During vacuuming, hair easily gets tangled in the roller brush. To prevent this, a comb-like structure is usually used in conjunction with the roller brush. The comb-like structure, fixed within the floor brush chamber, contacts the roller brush to scrape off the tangled hair. However, as the floor brush sucks up different types of debris, the comb-like structure, especially the front part, easily gets stuck with pieces of paper or lint, which are difficult to remove. Furthermore, the comb-like structure, usually located close to the roller brush, is prone to getting stuck with larger debris. This prevents the comb-like structure from effectively cleaning the hair tangled in the roller brush. Therefore, how to clean the debris tangled in the comb-like structure becomes a problem that needs to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide a floor brush assembly and a vacuum cleaner to solve the technical problem of how to clean the debris entangled on the comb teeth of the floor brush in a vacuum cleaner in the prior art.

[0004] Based on the above concept, the technical solution adopted by this invention is as follows:

[0005] A floor brush assembly, characterized in that the floor brush assembly comprises: a housing, a roller brush assembly, comb teeth, a force-bearing block, and a bristle pusher; the roller brush assembly includes a roller brush body and bristles; the comb teeth are disposed along the length direction of the roller brush body near the front end of the roller brush assembly; the comb teeth and the force-bearing block interact with each other, and the comb teeth can move away from the roller brush after the force-bearing block is subjected to a pushing force toward the roller brush assembly; the bristle pusher cleans up debris entangled in the comb teeth during the movement of the comb teeth.

[0006] The pusher is a tooth groove arranged around the comb teeth, including an upper part close to the upper surface of the comb teeth and a lower part close to the lower surface of the comb teeth, with each tooth groove corresponding to the position of each tooth.

[0007] A force-receiving block is provided below the comb teeth. One end of the force-receiving block protrudes against one end of the reversing block, and one end of the comb teeth protrudes against the other end of the reversing block. When the force-receiving block is subjected to external force, the reversing block pushes the comb teeth to move away from the roller brush, so that the comb teeth pass through the comb tooth groove.

[0008] The reversing block is rotatably connected to the housing, and the reversing block includes a torsion spring, one end of which hooks onto one end of the protrusion of the comb teeth, and the other end abuts against the housing.

[0009] The front end of the force-bearing block protrudes from the shell when no external force is applied.

[0010] The force-bearing block is elongated and its length is the same as that of the comb teeth.

[0011] The bottom of the force-bearing block is sloped.

[0012] In this comb, the end of each tooth is folded upward at a certain angle, and the end of each tooth is pointed.

[0013] The pusher is a long, strip-shaped plate that is positioned close to the surface of the comb teeth.

[0014] In another aspect, the present invention provides a vacuum cleaner including the floor brush assembly described in any of the preceding claims.

[0015] The beneficial effects of this invention are:

[0016] The floor brush assembly and vacuum cleaner proposed in this invention can not only remove hair and other debris tangled on the floor brush roller, but also remove debris tangled on the comb teeth. When it is necessary to clean the comb teeth or when the roller is stuck with debris and difficult to rotate, the problem can be solved simply by using external force to apply force to the force-bearing block at the front end of the floor brush. In use, the force-bearing block can be applied simply by touching an object or rubbing the ground with the front end of the floor brush, without the user having to bend down to operate it. It is simple and convenient to operate and can be operated at any time during use. Attached Figure Description

[0017] Figure 1 This is a perspective view of the floor brush assembly provided in the embodiment of the present invention when the force-bearing block is not under force.

[0018] Figure 2 yes Figure 1 Enlarged view of section B;

[0019] Figure 3 This is a perspective view of the floor brush assembly after the force-bearing block in the floor brush assembly provided in the embodiment of the present invention has been subjected to force;

[0020] Figure 4 This is a top partial cross-sectional view of the floor brush assembly provided in an embodiment of the present invention;

[0021] Figure 5 This is a partial sectional view of the side of the floor brush assembly provided in an embodiment of the present invention;

[0022] Figure 6 This is a perspective view of the comb teeth and force-bearing blocks in the floor brush assembly provided in an embodiment of the present invention;

[0023] In the picture:

[0024] 1. Floor brush assembly; 11. Housing; 111. Comb tooth groove; 1111. Upper part; 1112. Lower part; 112. Side; 1121. Hole; 1122. Hole; 113. Bottom surface; 12. Roller brush assembly; 121. Roller brush body; 122. Bristles; 13. Air shroud; 14. Comb teeth; 141. Tip; 142. Protrusion; 15. Force-bearing block; 151. Protrusion; 152. Side; 153. Clearance end face; 154. Front end face; 155. Bottom surface; 16. Reversing block; 17. Shaft; 18. Torsion spring; Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] See Figures 1 to 6This invention provides a floor brush assembly. The floor brush assembly 1 includes a housing 11 and a roller brush assembly 12. The roller brush assembly 12 is disposed at the front end of the floor brush assembly 1 and below the fan cover 13. The roller brush assembly 12 includes a roller brush body 121 and bristles 122. A row of comb teeth 14 is provided along the length of the roller brush body 121 at the front of the roller brush assembly 12. During normal use of the vacuum cleaner, the teeth of the comb teeth 14 insert into the bristles 122 of the roller brush assembly 12 to clean the debris entangled on the roller brush. Furthermore, the front end of each tooth in the comb teeth 14 is folded upward at a certain angle, and the direction of the folding angle is opposite to the direction of rotation of the roller brush. The end of each tooth in the comb teeth 14 is provided with a pointed tip 141. This arrangement is to hook off the debris entangled on the roller brush when the roller brush rotates. The comb teeth 14 have a force-bearing block 15 of the same length as the comb teeth below them. A brush-pushing component that cooperates with the comb teeth is located above the comb teeth 14. In this embodiment, the brush-pushing component is a comb tooth groove 111, which is formed by an extension of the housing 11. The comb tooth groove 111 includes two parts surrounding the comb teeth: an upper part 1111 and a lower part 1112 that are close to the comb teeth 14. Both the upper and lower parts have tooth grooves, and the positions of the tooth grooves correspond one-to-one. Each tooth groove corresponds to the position of each tooth on the comb teeth. The width of each tooth groove is slightly larger than the width of each tooth. This design is to prevent other debris on the comb teeth from passing through the tooth groove and falling off when the comb teeth retract, thereby achieving the effect of cleaning the debris entangled on the comb teeth. Because the gaps between the comb teeth are large and easily trap debris, the debris in the gaps can be cleared during the retraction of the tooth groove. Alternatively, if the teeth on the comb are densely arranged, the comb tooth groove structure can be omitted, and a long strip plate-like component such as a scraper can be used as a scraper to remove the debris wrapped around the comb teeth when the comb teeth move under the scraper.

[0030] Two elongated holes are provided on the end face 112 extending from the side of the comb tooth groove 111. The hole 1121 is for the protrusion 142 of one end of the comb tooth 14 to pass through, and the hole 1122 is for the protrusion 151 of one end of the force block 15 to pass through. Furthermore, the force block 15 also includes an avoidance end face 153 to leave space for the lower part 1112 of the comb tooth groove. The bottom of the end face 112 of the comb tooth groove extends laterally to form a bottom surface 113. One end of the reversing block 16 is connected to the housing through a shaft 17 so that it can rotate around the shaft. A torsion spring 18 is provided inside the reversing block. One end of the torsion spring 18 abuts against the bottom surface 113, and the other end hooks onto one side of the protrusion 142 of the comb tooth protrusion hole 1121. The other side of the protrusion 142 of the comb tooth protrusion hole 1121 abuts against the upper part of the reversing block 16, and the lower part of the reversing block 16 abuts against the protrusion 151 of the protrusion hole 1122 of the force block 15.

[0031] When cleaning the comb teeth is required, touching the front face 154 of the force-receiving block applies a force as indicated by arrow A. The protrusion 151 of the force-receiving block 15, extending from the hole 1122, applies force to the lower part of the reversing block 16, causing it to rotate counterclockwise. The lower part of the reversing block 16 rotates inward toward the roller brush, while the upper part rotates outward away from the roller brush. This pushes the protrusion 142 of the comb teeth 14 away from the roller brush, moving the comb teeth 14 to the position corresponding to the groove on the comb tooth groove 111. Debris entangled on the comb teeth 14 is then removed because it cannot pass through the groove. Cleaning the comb teeth can be achieved simply by touching the front face of the force-receiving block; the operation is convenient and simple, and users can perform this operation at any time during use.

[0032] It should be noted that this embodiment only describes the structure in which one side of the comb tooth 14 interacts with one side of the force block 15 through the reversing block 16. In order to realize the translation of the comb tooth 14, the other side of the comb tooth 14 interacts with the other side of the force block 15 through another reversing block, and the structure is the same.

[0033] Optionally, the force-bearing block is strip-shaped with thinner ends for passing through holes and interacting with the reversing block. Furthermore, the bottom of the force-bearing block can be horizontal or sloped, as shown in Figure 155. This allows the bottom to easily rub against the ground. Friction against the ground or other objects at the bottom can also cause the force-bearing block to exert force, thereby pushing the reversing block to achieve the effect of cleaning the comb teeth. This makes operation convenient and simple.

[0034] During normal use of the vacuum cleaner, when the force-bearing block 15 is not subjected to external force, the ends of the comb teeth 14 protruding from the holes 1121 are hooked and held in a fixed position by the torque of the torsion spring. This means the tips of the comb teeth are always inserted into the bristles 122 of the roller brush assembly 12, allowing for the removal of debris entangled on the roller brush. Optionally, the bristles can be one or more rows of stiff bristles as shown in the figure, or soft bristles that fully enclose the roller brush body. The comb teeth need to penetrate a certain depth into the bristles to effectively remove debris entangled on the roller brush. Ideally, the front end of the force-bearing block should protrude from the housing when not subjected to external force, making it easier for external force to contact the front surface of the force-bearing block and apply force. Of course, if it does not protrude from the housing, other methods can also be used to apply force to the force-bearing block.

[0035] The present invention also provides a vacuum cleaner, including the floor brush assembly 1 described in the above embodiments. The vacuum cleaner may be an upright vacuum cleaner, etc., but is not limited thereto.

[0036] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floor brush assembly, characterized in that, The floor brush assembly includes: a housing, a roller brush assembly, comb teeth, a force-bearing block, a reversing block, and a bristle pusher; the roller brush assembly includes a roller brush body and bristles; the force-bearing block is disposed below the comb teeth; the comb teeth are disposed close to the front end of the roller brush assembly along the length direction of the roller brush body, and during normal use of the vacuum cleaner, the teeth of the comb teeth insert into the bristles of the roller brush assembly to clean the debris entangled on the roller brush; When no external force is applied, the front end of the force-bearing block protrudes from the housing. The comb teeth and the force-bearing block interact with each other. After the force-bearing block is pushed towards the roller brush assembly, the comb teeth can move away from the roller brush. The bristle pusher cleans up the debris entangled in the comb teeth during their movement. The pusher is a tooth groove surrounding the comb teeth; one end of the force block protrudes against one end of the reversing block, and one end of the comb teeth protrudes against the other end of the reversing block. After the force block is subjected to external force, the reversing block pushes the comb teeth to move away from the roller brush, so that the comb teeth pass through the tooth groove.

2. The floor brush assembly according to claim 1, characterized in that, The comb tooth groove includes an upper portion adjacent to the upper surface of the comb tooth and a lower portion adjacent to the lower surface of the comb tooth, with each groove corresponding to the position of each tooth.

3. The floor brush assembly according to claim 2, characterized in that, The reversing block is rotatably connected to the housing, and the reversing block includes a torsion spring, one end of which hooks onto one end of the protrusion of the comb teeth, and the other end abuts against the housing.

4. The floor brush assembly according to claim 2, characterized in that, The force-bearing block is elongated and its length is the same as the length of the comb teeth.

5. The floor brush assembly according to claim 2, characterized in that, The bottom of the force-bearing block is sloped.

6. The floor brush assembly according to claim 1, characterized in that, The end of each tooth in the comb is folded upward at a certain angle, and the end of each tooth is pointed.

7. A vacuum cleaner, characterized in that, The floor brush assembly included in any one of claims 1-6.

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