CN215502816U

CN215502816U - A brush head and a floor brush module for a floor brush module

Info

Publication number: CN215502816U
Application number: CN202120678451.6U
Authority: CN
Inventors: 刘逸; 李德来; 王强; 韦明祥; 郭国良; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-01-14
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to a brush head used for a floor brush module and a floor brush module. In the brush head used for the floor brush module, the thickness of the longitudinal section of the blade is designed so that the thickness of the longitudinal section gradually decreases from the middle to the upper and lower edges, so that Through the change of the blade topography, when the brush head rotates, the airflow pressure is increased near the central axis, thereby forming a pressure gradient extending along the two edges of the blade in the central axis, avoiding the noise caused by the excessive resistance of the airflow due to the collision with the blade; In addition, the blade is provided with a notch on at least one of the upper edge or the lower edge to form a guide portion for the airflow to pass through, so that the airflow pressure generated by the central axis of the blade is relieved at the guide portion at the second end. , the airflow on the blade is affected by the guide part and flows obliquely along the blade, which affects the boundary layer of the end wall, restricts the development of the trailing edge vortex, and makes it not suitable for growth conditions, which is beneficial to reduce the trailing edge when the cyclone rotates. Eddy current to reduce broadband noise.

Description

Brush head for floor brush module and floor brush module

Technical Field

The utility model relates to the field of household washing and cleaning, in particular to a brush head for a floor brush module and the floor brush module.

Background

The current floor cleaning machine with the floor sweeping function comprises a dust collector and a floor sweeping robot, and the floor cleaning machine mainly adopts a brushing and sweeping mode, and utilizes a fan to suck impurities on the ground into an internal storage box, so that the function of cleaning the ground is achieved.

For example, the cleaning device disclosed in the Chinese patent application for invention "cleaning device", which has a patent application number of CN201911328923.9 (application publication number of CN110881911A), comprises a body provided with a slot; the front collision is arranged on the machine body; the cleaning assembly comprises a roller for cleaning the ground, and the roller is arranged between the machine body and the front collision; the collecting assembly is provided with a sewage outlet, is arranged between the machine body and the roller and is abutted against the roller and is used for collecting and separating garbage and sewage carried by the roller; and the water tank is provided with a sewage inlet, the water tank is detachably arranged in the groove position, and sewage flows into the water tank through the sewage outlet and the sewage inlet. When the cleaning equipment walks, the cleaning equipment carries the roller to rotate, and the roller can carry wipers such as rags to clean the ground, so that the wipers can carry garbage and sewage to roll along with the rolling of the roller.

As another example, the chinese patent application, a sweeping robot, whose patent application No. is CN202010145417.2 (application publication No. is CN111358367A), discloses a sweeping robot, which includes a rolling brush device, where the rolling brush device includes a fixing component, a driving device, and a rolling brush main body; the bottom of fixed subassembly is equipped with and takes the open-ended to hold the chamber, drive arrangement includes driving motor and roller, the roller rotationally sets up hold the intracavity, be provided with a plurality of archs on the circumference surface between the roller both ends, the round brush main part cup joints the roller.

Above-mentioned cleaning device has realized cleaning ground, but cleans the in-process, because the brush head has the blade, the blade is along with brush head pivoted in-process, and the air current collides with heterogeneous mixture such as sewage, granule for the air current is disorderly, the emergence of great improvement's noise, and the turbulent flow that produces with the air current collision between blade leading edge, the trailing edge, the noise of also great improvement makes whole noise source have very wide frequency range, is difficult to be eliminated.

Accordingly, there is a need for further improvements to the floor brush modules of existing cleaning machines.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a brush head for a floor brush module, which effectively reduces noise by changing airflow at the tail of a blade, aiming at the current situation of the prior art.

A second technical problem to be solved by the present invention is to provide a floor brush module having the above-mentioned brush head, in view of the current state of the art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a brush head for a floor brush module, comprising:

brushing a disc;

at least two blades are arranged at intervals along the circumferential direction of the brush disc;

the blade is strip-shaped, the first end is connected to the outer side wall of the brush disc, the thickness of the longitudinal section of the blade is gradually reduced from the middle part to the upper edge and the lower edge, and a notch is reserved on at least one of the upper edge or the lower edge of the blade at the position close to the second end to form a flow guide part for air flow to pass through.

Preferably, the blade includes body and water conservancy diversion piece, the water conservancy diversion piece is connected the tip of the second end of body, and the extending direction of extending direction and body intersect, and the design of body and water conservancy diversion piece like this makes the air current can be more smooth and easy receive pressure gradient and flow to water conservancy diversion department, and the effect is ideal.

In order to further ensure smooth flow of the air flow at the brush head, it is preferable that the guide vane is connected to an upper side of the second end of the body, and the notch is formed below the guide vane, so that the air flow passes through the blades with a minimum flow path, ensuring minimum resistance.

Preferably, at least two convex parts are convexly arranged on the end surface of the second end of the flow deflector, so that the end surface is wavy.

The second end of the body extends towards the rear side of the rotation direction of the brush head so that the middle of the body protrudes forwards to form an arc-shaped wind guide surface for facing the wind.

In order to ensure that the brush head rotates to brush the corresponding wall surface of the floor brush module, preferably, the extending direction of the flow deflector is tangent to the rotating direction of the brush head, and one side of the flow deflector, which is far away from the brush disk, is provided with first bristles.

Preferably, the bottom of the brush disk is provided with second bristles extending downwards in the circumferential direction.

In order to further solve the second technical problem, the utility model adopts the following technical scheme: the utility model provides a scrubbing brush module with above-mentioned brush head, including the shell, the inside wind-guiding passageway that has of shell, the wind-guiding passageway have the dust absorption mouth that the opening is down and with the air outlet of dust absorption mouth fluid intercommunication, along air current flow path, the air outlet is located the low reaches of dust absorption mouth, the setting that the brush head can rotate is in the dust absorption mouth, and the vertical extension of axis of rotation.

Compared with the prior art, the utility model has the advantages that: in the brush head for the floor brush module, the thickness of the longitudinal section of the blade is designed to be gradually reduced from the middle part to the upper edge and the lower edge, so that the airflow pressure is improved near the middle shaft when the brush head rotates through the change of the appearance of the blade, and further a pressure gradient extending from the middle shaft to the two edges of the blade is formed, and the noise caused by the overlarge resistance generated by the impact of the airflow and the blade is avoided; in addition, the blade is provided with a notch on at least one of the upper edge or the lower edge to form a flow guide part for air flow to pass through, so that the pressure of the air flow generated by the central shaft of the blade is relieved at the flow guide part at the second end, the air flow on the blade obliquely flows along the blade under the action of the flow guide part, the boundary layer of the end wall is influenced, the development of the trailing edge vortex is limited, the trailing edge vortex has no growth condition, the trailing edge vortex during cyclone breaking rotation is favorably reduced, and the broadband noise is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of a floor brush module according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is an overall view from another angle of FIG. 1;

FIG. 4 is a cross-sectional view at another angle to FIG. 3;

fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 5, in a preferred embodiment of the present invention, the brush head for the floor brush module comprises a brush disc 1 and blades 2, wherein the brush head 100 is directed to the brush head module for the cleaning machine, the cleaning machine generally comprises a floor brush module consisting of different numbers of brush heads 100 and chambers, for example, the floor brush module may comprise a housing 5, the housing 5 has a wind guide channel 50 inside, the wind guide channel 50 has a dust suction opening 5a with a downward opening and an air outlet 5b in fluid communication with the dust suction opening 5a, along an airflow flow path, the air outlet 5b is located downstream of the dust suction opening 5a, the brush head 100 is rotatably disposed in the dust suction opening 5a, and a rotation axis extends vertically.

The blades 2 are at least two and are arranged at intervals along the circumferential direction of the brush disc 1, the blades 2 can be in various forms, the blades 2 in the embodiment are strip-shaped, the first ends of the blades are connected to the outer side wall of the brush disc 1, the thickness of the longitudinal section of the blades is gradually reduced from the middle part to the upper edge and the lower edge, and gaps 20 are reserved on at least one of the upper edge or the lower edge of the blades 2 at the position close to the second ends to form a flow guide part for air flow to pass through.

In order to ensure that the blade 2 has a noise-damping and noise-reducing effect on the airflow, the blade 2 includes a body 21 and a guide vane 22, and the guide vane 22 is connected to the end of the second end of the body 21 and extends in a direction intersecting the extending direction of the body 21. Specifically, the baffle 22 is connected to the upper side of the second end of the body 21, and the notch 20 is formed below the baffle 22. In addition, at least two protrusions 2b are protruded from the end surface of the second end of the guide vane 22, so that the end surface is wavy.

In order to ensure that the body 21 can realize the pressure gradient, the second end of the body 21 is preferably extended towards the rear side of the rotation direction of the brush head, so that the middle part of the body is protruded forwards to form an arc-shaped wind guide surface 2a for facing the wind.

The extending direction of the deflector 22 in this embodiment is tangent to the rotation direction of the brush head, and one side of the deflector 22 departing from the brush disk is provided with first bristles 3. Further, second brush staples 4 extending downward are provided on the bottom of the brush disk 1 in the circumferential direction.

Also, directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like, may be used in the description and claims to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are determined based on the example orientations shown in the figures. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims

1. A brush head for a floor brush module, comprising:

Brush disk (1);

There are at least two blades (2), which are arranged at intervals along the circumference of the brush disc (1);

It is characterized by:

The blade (2) is in the shape of a strip, the first end is connected to the outer side wall of the brush disc (1), and the thickness of its longitudinal section gradually decreases from the middle to the upper and lower edges, and the blade (2) ) at a position adjacent to the second end, at least one of the upper edge or the lower edge is provided with a gap (20) to form a guide portion for the airflow to pass through.

2 . The brush head according to claim 1 , wherein the blade ( 2 ) comprises a body ( 21 ) and a guide vane ( 22 ), and the guide vane ( 22 ) is connected to the body ( 21 ). 3 . ) at the end of the second end, and the extending direction intersects the extending direction of the body (21).

3. The brush head according to claim 2, characterized in that: the guide plate (22) is connected to the upper side of the second end of the main body (21), and the gap (20) is formed in the guide below the sheet (22).

4 . The brush head according to claim 3 , wherein at least two convex portions ( 2 b ) are protruded on the end surface of the second end of the guide plate ( 22 ), so that the end surface is wavy. 5 .

5. The brush head according to claim 4, characterized in that: the second end of the main body (21) is extended toward the rear side of the brush head in the rotation direction, so that the middle part of the body (21) protrudes forward to form a windward opening. Arc-shaped wind guide surface (2a).

6 . The brush head according to claim 5 , wherein the extending direction of the guide plate ( 22 ) is tangent to the rotation direction of the brush head, and a side of the guide plate ( 22 ) facing away from the brush plate is provided There are first bristles (3).

7. The brush head according to claim 1, wherein the bottom of the brush disc is provided with second bristles (4) extending downward in the circumferential direction.

8. A floor brush module having the brush head according to any one of claims 1 to 7, characterized in that: comprising a casing (5), and an air guide channel (50) is arranged inside the casing (5) , the air guide channel (50) has a dust suction port (5a) with an opening facing downward and an air outlet (5b) in fluid communication with the dust suction port (5a), along the air flow path, the air outlet (5b) 5b) Located downstream of the dust suction port (5a), the brush head (100) is rotatably arranged in the dust suction port (5a), and the rotation axis extends vertically.