Improved dust collector floor brush

Abstract

The utility model provides an improved dust collector floor brush. The dust collection floor brush base is provided with a floor brush bottom plate and a rolling brush chamber and can move on a surface to be cleaned, the dust collection cover plate is arranged above the dust collection floor brush base and connected with the dust collection floor brush base, the rotary rolling brush body is detachably arranged in the rolling brush chamber, and the rolling brush motor is used for driving the rotary rolling brush body to rotate. Wherein the floor brush bottom plate comprises a sealing protrusion which is located on one side of the rolling brush chamber and is in microspur clearance fit with a surface to be cleaned, the sealing protrusion is adjacent to the rolling brush body and comprises a middle part and a pair of connecting parts located on the two sides of the middle part, and the connecting parts are closer to the central axis of the rolling brush body relative to the middle part. The dust collection device has the advantages that the dust collection performance is improved by performing microspur clearance fit on the surface to be cleaned, and the dust collection device is not easy to deform and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of household cleaning, and particularly relates to an improved vacuum cleaner floor brush. Background Art

[0002] In the existing market of cleaning appliances, vacuum cleaners are becoming increasingly important. In order to meet the energy efficiency standards in Europe, the requirements for the suction performance of the vacuum cleaner floor brush used in conjunction with the vacuum cleaner have been correspondingly increased. Similar technologies can be referred to in the Chinese invention open patent CN107736841A. Since the bottom rear side of the roller brush chamber is sealed only by a relatively soft scraping strip, once the usage time is relatively long, the scraping strip is prone to deformation and lose its sealing performance. Therefore, an improved vacuum cleaner floor brush is needed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an improved vacuum cleaner floor brush, which performs a micro-gap fit with the surface to be cleaned, improves the suction performance, is not prone to deformation, and has high reliability.

[0004] To achieve the purpose of the utility model, the utility model provides the following technical solutions: A floor brush, which includes a vacuum cleaner floor brush base having a floor brush bottom plate and a roller brush chamber and capable of moving on a surface to be cleaned, a vacuum cleaner cover plate disposed above the vacuum cleaner floor brush base and connected to each other, a rotating roller brush body detachably disposed in the roller brush chamber, and a roller brush motor for driving the rotating roller brush body to rotate. The floor brush bottom plate includes a sealing protrusion located on one side of the roller brush chamber and in micro-gap fit with the surface to be cleaned. The sealing protrusion is adjacent to the roller brush body and includes a middle part and a pair of connecting parts located on both sides of the middle part. The connecting part is closer to the central axis of the roller brush body than the middle part.

[0005] Based on the above technical solutions, the following additional technical solutions are further included:

[0006] The middle part and the connecting part extend linearly and are parallel to the central axis of the roller brush body. The sealing protrusion includes a first bending part disposed on both sides of the middle part and a second bending part respectively located at the end of the connecting part. The extending direction of the second bending part is perpendicular to the extending direction of the middle part, and the extending direction of the first bending part intersects the extending direction of the middle part at an acute angle.

[0007] The extending length of the connecting part is greater than the extending length of the middle part.

[0008] The vacuum cleaner floor brush base includes a receiving chamber located behind the roller brush chamber, a partition for separating the roller brush chamber and the receiving chamber, and a rear end part located at the rear side of the receiving chamber. The partition includes a suction port communicating with the roller brush chamber. The middle part is located at the bottom of the suction port, and the first bending part guides air flow into the suction port.

[0009] The sealing protrusion is integrally formed with the floor brush bottom plate and is made of injection molding material, and the gap between the sealing protrusion and the surface to be cleaned ranges from 0.5 to 2 millimeters.

[0010] The rear end portion includes a connection channel with one end connected to the suction port and passing through the accommodation chamber, and shaft-shaped portions located on both sides of the connection channel.

[0011] The floor brush bottom plate further includes a plurality of main air inlets located in front of the roller brush chamber, a plurality of side air inlets provided on both sides of the roller brush chamber, a main brush strip groove located behind the sealing protrusion, and a pair of side brush strip grooves located on both sides of the main brush strip groove, wherein one end of one side brush strip groove is adjacent to the side air inlet.

[0012] The first bent portion and the suction port together form a flared mouth, and the cross-sectional area becomes smaller along the air flow direction.

[0013] It further includes a rotatable connector connected to the rear end portion, a hose at least located in the connection channel with one end communicating with the suction port and the other end communicating with the connector, a pair of rollers fixed on the shaft-shaped portions and having bottoms contacting the surface to be cleaned, a main brush strip arranged in the main brush strip groove and having a bottom contacting the surface to be cleaned, and a side brush strip arranged in the side brush strip groove and having a bottom contacting the surface to be cleaned.

[0014] The side air inlet is located between the main air inlet and the side brush strip.

[0015] Compared with the prior art, the present utility model has the following positive effects: performing a micro-gap fit with the surface to be cleaned, improving the dust suction performance, not being easily deformed, and having high reliability. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Is a perspective view of the present utility model at an angle;

[0018] Figure 2 Is a cross-sectional view of the present utility model;

[0019] Figure 3 Is a perspective view of the present utility model at another angle;

[0020] Figure 4 Is an exploded view of the present utility model;

[0021] Figure 5 This is a perspective view of the base of the present utility model at a certain angle;

[0022] Figure 6 This is a perspective view of the base of the present utility model at another angle. Detailed implementation manners

[0023] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The following further describes in detail the specific implementation manners of the present utility model with reference to the drawings.

[0026] Embodiment: As Figure 1-6 shown, the present utility model discloses a specific embodiment of an improved vacuum cleaner floor brush, which includes: a vacuum cleaner floor brush base 100 having a floor brush base plate 1100 and a roller brush chamber 1200 and capable of moving on a surface to be cleaned, a vacuum cleaner cover plate 200 disposed above the vacuum cleaner floor brush base 100 and connected to each other, a rotating roller brush body 300 detachably disposed in the roller brush chamber 1200, and a roller brush motor 400 for driving the rotating roller brush body 300 to rotate. The floor brush base plate 1100 includes a sealing protrusion 1500 located on one side of the roller brush chamber 1200 and in micro-gap fit with the surface to be cleaned. The sealing protrusion 1500 is adjacent to the roller brush body 300 and includes an intermediate portion 1520 and a pair of connecting portions 1560 located on both sides of the intermediate portion 1520, wherein the connecting portions 1560 are closer to the central axis of the roller brush body 300 than the intermediate portion 1520.

[0027] The dust suction floor brush base 100 is an injection molded part and is generally rectangular. The roller brush chamber 1200 is located at the front side of the dust suction floor brush base 100, and the floor brush bottom plate 1100 is located at the bottom of the dust suction floor brush base 100 and has a spacing in the vertical direction from the surface to be cleaned. The dust suction floor brush base 100 includes a receiving chamber 1400 located behind the roller brush chamber 1200, a partition 1600 for separating the roller brush chamber 1200 and the receiving chamber 1400, and a rear end portion 1800 located at the rear side of the receiving chamber 1400. The partition 1600 includes a suction port 1620 communicating with the roller brush chamber 1200. The middle portion 1520 is located at the bottom of the suction port 1620, and the first bending portion 1540 guides the air flow into the suction port 1620. The sealing protrusion 1500 is integrally formed with the floor brush bottom plate 1100 and is made of injection molding material. The rear end portion 1800 includes a connection channel 1840 with one end connected to the suction port 1620 and passing through the receiving chamber 1400, and shaft-like portions 1820 located on both sides of the connection channel 1840. The floor brush bottom plate 1100 further includes a plurality of main air inlets 1120 located in front of the roller brush chamber 1200, a plurality of side air inlets 1140 provided on both sides of the roller brush chamber 1200, a main wool strip groove 1300 located behind the sealing protrusion 1500, and a pair of side wool strip grooves 1320 located on both sides of the main wool strip groove 1300. One end of one side wool strip groove 1320 is adjacent to the side air inlet 1140. The first bending portion 1540 and the suction port 1620 together form a flared opening, and the cross-sectional area becomes smaller along the air flow direction. The side air inlets 1140 are located between the main air inlets 1120 and the side wool strip 720. The middle portion 1520 and the connecting portion 1560 extend linearly and are parallel to the central axis of the roller brush body 300. The sealing protrusion 1500 includes first bending portions 1540 provided on both sides of the middle portion 1520 and second bending portions 1580 respectively located at the ends of the connecting portion 1560. The extending direction of the second bending portion 1580 is perpendicular to the extending direction of the middle portion 1520, and the extending direction of the first bending portion 1540 intersects the extending direction of the middle portion 1520 at an acute angle. The extending length of the connecting portion 1560 is greater than the extending length of the middle portion 1520. The sealing protrusion 1500 is in micro-gap fit with the surface to be cleaned, and the gap range is between 0.5 - 2 millimeters. A side wall opening 1220 allowing the rotary roller brush body 300 to be taken out is provided on the side wall of the dust suction floor brush base 100, and the side wall opening 1220 communicates with the roller brush chamber 1200.

[0028] The dust suction cover plate 200 is used to shield the upper part of the dust suction floor brush base 100 and at least partially shield the upper part of the roller brush chamber 1200. A sawtooth portion 220 extends downward from its top for combing the entangled hair on the rotary roller brush body 300.

[0029] The rotating brush body 300 is detachably arranged. It rotates at a high speed around the direction of the rotation axis parallel to the surface to be cleaned and contacts the surface to be cleaned. The dust on the surface to be cleaned is agitated by the brush bristles 320 arranged thereon, and then enters the suction port 1620 from the brush chamber 1200 under the action of the air flow.

[0030] The brush motor 400 is preferably a DC brushed motor, and can also be a DC brushless motor, and drives the rotating brush body 300 to move through the transmission mechanism 420. The transmission mechanism 420 is preferably a gear set or a belt.

[0031] This embodiment further includes a rotatable connector 600 connected to the rear end portion 1800, a hose 620 at least located in the connection channel 1840 and having one end communicating with the suction port 1620 and the other end communicating with the connector 600, a pair of rollers 640 fixed on the shaft portion 1820 and having the bottom contacting the surface to be cleaned, a pair of front wheels 660 adjacent to the main air inlet 1120 and having the bottom contacting the surface to be cleaned, a main brush strip 700 located in the main brush strip groove 1300 and having the bottom contacting the surface to be cleaned, and a side brush strip 720 located in the side brush strip groove 1320 and having the bottom contacting the surface to be cleaned. The front wheels 660 are located in front of the brush chamber 1200, and the rollers 640 are located behind the brush chamber 1200.

[0032] The advantages of the present utility model are: performing a micro-gap fit on the surface to be cleaned, improving the dust suction performance, not being easily deformed, and having high reliability.

[0033] The above are only the preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art in this technical field can make several deformations and improvements without departing from the creative concept of the present utility model, and all should be covered within the protection scope of the present utility model.

Claims

1. An improved floor brush for a vacuum cleaner, characterized in that It includes a vacuum floor brush base (100) having a floor brush base plate (1100) and a roller brush chamber (1200) and being movable on a surface to be cleaned, a vacuum cover plate (200) disposed above the vacuum floor brush base (100) and interconnected, a rotary roller brush body (300) detachably disposed in the roller brush chamber (1200), and a roller brush motor (400) for driving the rotary roller brush body (300) to rotate. Wherein the floor brush base plate (1100) includes a sealing protrusion (1500) located on one side of the roller brush chamber (1200) and in micro-gap fit with the surface to be cleaned. The sealing protrusion (1500) is adjacent to the roller brush body (300) and includes a middle portion (1520) and a pair of connecting portions (1560) located on both sides of the middle portion (1520). Wherein the connecting portion (1560) is closer to the central axis of the roller brush body (300) than the middle portion (1520).

2. The improved vacuum cleaner floor brush according to claim 1, characterized in that: The middle portion (1520) and the connecting portion (1560) extend linearly and are parallel to the central axis of the roller brush body (300). Wherein the sealing protrusion (1500) includes first bending portions (1540) disposed on both sides of the middle portion (1520) and second bending portions (1580) respectively located at the ends of the connecting portions (1560). Wherein the extending direction of the second bending portion (1580) is perpendicular to the extending direction of the middle portion (1520), and the extending direction of the first bending portion (1540) intersects the extending direction of the middle portion (1520) at an acute angle.

3. The improved vacuum cleaner floor brush according to claim 2, wherein: The extending length of the connecting portion (1560) is greater than the extending length of the middle portion (1520).

4. The improved vacuum cleaner floor brush according to claim 2 or 3, characterized in that: The vacuum floor brush base (100) includes a receiving chamber (1400) located behind the roller brush chamber (1200), a partition plate (1600) for spacing between the roller brush chamber (1200) and the receiving chamber (1400), and a rear end portion (1800) located at the rear side of the receiving chamber (1400). Wherein the partition plate (1600) includes a suction port (1620) communicating with the roller brush chamber (1200). Wherein the middle portion (1520) is located at the bottom of the suction port (1620), and the first bending portion (1540) guides air flow into the suction port (1620).

5. The improved vacuum cleaner floor brush according to claim 4, characterized in that: The sealing protrusion (1500) is integrally formed with the floor brush base plate (1100) and is made of injection molding material, and the gap between the sealing protrusion (1500) and the surface to be cleaned ranges from 0.5 to 2 millimeters.

6. The improved vacuum cleaner floor brush according to claim 4, characterized in that: The rear end portion (1800) includes a connecting channel (1840) having one end connected to the suction port (1620) and passing through the receiving chamber (1400), and shaft-like portions (1820) located on both sides of the connecting channel (1840).

7. The improved vacuum cleaner floor brush according to claim 6, characterized in that: The floor brush bottom plate (1100) further includes a plurality of main air inlets (1120) located in front of the roller brush chamber (1200), a plurality of side air inlets (1140) provided on both sides of the roller brush chamber (1200), a main brush strip groove (1300) located behind the sealing protrusion (1500), and a pair of side brush strip grooves (1320) located on both sides of the main brush strip groove (1300), wherein one end of one side brush strip groove (1320) is adjacently arranged to the side air inlet (1140).

8. The improved vacuum cleaner floor brush according to claim 4, wherein: The first bending portion (1540) and the suction port (1620) together form a flared opening, and the cross-sectional area becomes smaller along the air flow direction.

9. The improved vacuum cleaner floor brush according to claim 7, wherein It further includes a rotatable connector (600) connected to the rear end portion (1800), a hose (620) at least located in the connection channel (1840) with one end communicating with the suction port (1620) and the other end communicating with the connector (600), a pair of rollers (640) fixed on the shaft portion (1820) and having the bottom contacting the surface to be cleaned, a main brush strip (700) arranged in the main brush strip groove (1300) and having the bottom contacting the surface to be cleaned, and a side brush strip (720) arranged in the side brush strip groove (1320) and having the bottom contacting the surface to be cleaned.

10. The improved vacuum cleaner floor brush according to claim 7, characterized in that: The side air inlet (1140) is located between the main air inlet (1120) and the side brush strip (720).

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