CN220937962U

CN220937962U - Floor brush structure for cleaning machine and cleaning machine

Info

Publication number: CN220937962U
Application number: CN202322663071.7U
Authority: CN
Inventors: 权育锋; 郑军妹; 张旭东; 晏建林
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-14
Anticipated expiration: 2033-09-28

Abstract

The utility model relates to a floor brush structure for a cleaning machine and the cleaning machine, and the floor brush structure for the cleaning machine comprises a shell; two sets of driving wheels, which are arranged on the shell at intervals along the left-right direction, are coaxially arranged, are positioned partially under the shell, and are arranged to rotate relative to the shell around an axis extending along the left-right direction so as to walk on the ground; a floating wheel mounted on the housing and partially below the housing and coaxially arranged and relatively fixed with at least one set of the drive wheels; and the elastic piece acts on the floating wheel and enables the floating wheel to always have a downward movement trend. When encountering an obstacle, the floating wheel and the driving wheel move downwards together, so that the height between the bottom of the shell and the ground is increased, the obstacle is overcome more reliably, and the obstacle-surmounting effect is better due to the larger diameter of the driving wheel.

Description

Floor brush structure for cleaning machine and cleaning machine

Technical Field

The utility model belongs to the technical field of household washing and cleaning, and particularly relates to a floor brush structure for a cleaning machine and the cleaning machine.

Background

Existing mobile cleaning devices, such as floor sweepers or floor washers, often have obstacle-surmounting capabilities to suit the respective cleaning environment, but the presence of hair, debris thereon can cause the cleaning machine to become trapped due to the varying degree of obstruction created by carpet steps and the like. In order to achieve autonomous escape of the device under different circumstances, many cleaning machines are provided with a separate height adjustment mechanism.

The chinese patent of patent No. CN202222930398.1 discloses a cleaning apparatus, in which a travelling mechanism is disposed on a machine body, the travelling mechanism is configured to support the machine body on a working surface and drive the machine body to travel on the working surface, and a lifting mechanism is disposed between the machine body and the travelling mechanism and is configured to drive the travelling mechanism to move in a direction away from or close to the working surface so as to raise or lower a distance between the machine body and the working surface. In the cleaning device, the distance between the machine body and the working surface is raised or lowered by the lifting mechanism, so that the cleaning device can cross certain obstacles on the working surface or travel to certain obstacles to avoid the obstacles from obstructing or rubbing the cleaning device.

However, the lifting wheels driven by the equipment are independently arranged at the middle position, so that the lifting machine can get rid of the trouble by a larger lifting stroke, and the machine body is unstable in the lifting process.

Therefore, there is a need for further improvements to existing floor brush structures.

Disclosure of utility model

The first technical problem to be solved by the present utility model is to provide a floor brush structure for a cleaning machine, which is balanced and stable in floating, aiming at the current state of the art.

The second technical problem to be solved by the utility model is to provide a cleaning machine with the floor brush structure.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a brush structure for cleaning machine, with the direction of travel of cleaning machine as the front, includes:

a housing;

Two sets of driving wheels, which are arranged on the shell at intervals along the left-right direction, are coaxially arranged, are positioned partially under the shell, and are arranged to rotate relative to the shell around an axis extending along the left-right direction so as to walk on the ground;

It is characterized in that the method also comprises the following steps:

A floating wheel mounted on the housing and partially below the housing and coaxially arranged and relatively fixed with at least one set of the drive wheels; and

And the elastic piece acts on the floating wheel and enables the floating wheel to always have a downward movement trend.

In order to increase the stability of obstacle surmounting, two floating wheels are arranged, and two groups of driving wheels are respectively and relatively fixed with the two floating wheels.

In order to realize the relative fixation of the floating wheel and the corresponding driving wheel, the side surface of the floating wheel, which faces the corresponding driving wheel, is provided with a shaft sleeve which is relatively fixed with the driving wheel, and the axis of the shaft sleeve is the rotation axis of the driving wheel. The two groups of driving wheels and the floating wheels fixed with the driving wheels float up and down, and the purpose of obstacle surmounting can be achieved without large up and down strokes.

The elastic piece can be in the form of a tension spring or a spring, but preferably, a cavity for accommodating the shaft sleeve is formed in the shell, a connecting piece extending vertically is arranged on the bottom wall of the cavity, the upper end of the connecting piece is connected with the shaft sleeve, the elastic piece is a tension spring sleeved on the periphery of the connecting piece, and the upper end and the lower end of the tension spring are respectively connected with the corresponding positions of the shaft sleeve and the cavity.

In order to more reliably realize the up-and-down motion of the floating wheel, the connecting piece is a screw, an extension part extending laterally is arranged on the peripheral wall of the shaft sleeve, a through hole which is penetrated through only the screw rod part of the screw downwards is formed in the extension part, the screw rod part penetrates through the through hole and then is in threaded connection with the bottom wall of the cavity, and the upper end of the tension spring is connected with the bottom surface of the extension part.

In order to increase the stability of the up-and-down movement of the floating wheel, at least one extending part is arranged on the front side and the rear side of the shaft sleeve, and each extending part is correspondingly provided with one screw and one elastic piece.

In order to realize the rotation of the driving wheel, a motor for driving the shaft sleeve to rotate is arranged in the shaft sleeve, and an output shaft of the motor is connected with the shaft sleeve.

Further improving the stability of obstacle surmounting, wherein the two floating wheels are positioned between the two groups of driving wheels.

The bottom wall of the housing may be provided with openings for partial passage of the driving wheel, or may take the form of the driving wheel being located on the outer peripheral side of the housing, but preferably the driving wheel is located on the outer peripheral side of the housing.

In order to clean the floor, a flow passage extending along the front-rear direction is formed between the front side area of the bottom of the housing and the floor to be cleaned, and a cleaning module for cleaning the floor is arranged on the housing, and the cleaning module is at least partially positioned in the flow passage and in front of the driving wheel.

Preferably, the housing has an air guide channel located behind the flow channel, the air guide channel being located between the two floating wheels and downstream of the flow channel along the fluid flow path.

In order to better realize obstacle crossing capability, the stability of the ground brush structure in the obstacle crossing process is increased, and the outer diameter of the driving wheel is equal to the outer diameter of the floating wheel.

The utility model solves the second technical problem by adopting the technical proposal that: the cleaning machine further comprises a ground brush structure, a separation structure for separating fluid and a fan for providing a negative pressure source, wherein the ground brush structure, the separation structure and the fan are sequentially arranged along a fluid flow path.

The cleaning machine may be a sweeper or a scrubber, but preferably the cleaning machine is a scrubber, and the separating structure and the blower are both located above the floor brush structure.

Compared with the prior art, the utility model has the advantages that: in the ground brush structure, the floating wheel and the driving wheel are coaxially arranged, the floating wheel can be relatively fixed with one of the driving wheels, and the floating wheel always has a downward movement trend under the action of the elastic piece, so that when encountering an obstacle, the floating wheel and the driving wheel move downwards together, the height between the bottom of the shell and the ground is increased, the obstacle is more reliably overcome, and the obstacle crossing effect is better due to the larger diameter of the driving wheel. In addition, the driving wheel and the floating wheel synchronously act, so that the stability of the whole shell is improved.

Drawings

Fig. 1 is a schematic view of the structure of the floor brush of the present embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion I in FIG. 2;

FIG. 4 is another angular cross-sectional view of FIG. 1;

FIG. 5 is an enlarged schematic view of the portion II in FIG. 4;

fig. 6 is another angular cross-sectional view of fig. 1.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

The cleaning machine of this embodiment is a floor scrubber, and the following is directed forward of the floor scrubber.

The floor scrubber comprises a floor brush structure, a separation structure for separating fluid and a fan for providing a negative pressure source, wherein the floor brush structure, the separation structure and the fan are sequentially arranged along a fluid flow path, and the separation structure and the fan are both positioned above the floor brush structure. The structure of the floor washing machine is in the prior art, and detailed description thereof will not be repeated in this embodiment.

As shown in fig. 1 to 6, the floor brush structure of the present embodiment includes a housing 1, a driving wheel 2, a floating wheel 3 and an elastic member. Wherein, a flow channel 11 extending along the front-back direction is formed between the front side area of the bottom of the shell 1 and the floor to be cleaned, and a cleaning module 12 for cleaning the floor is arranged on the shell 1, and the cleaning module 12 is at least partially positioned in the flow channel 11. The housing 1 has an air guide channel 13 located behind the flow channel 11, the air guide channel 13 being located downstream of the flow channel 11 along the fluid flow path.

As shown in fig. 1 and 2, the above-mentioned driving wheels 2 are provided in two groups, are arranged on the housing 1 at intervals in the left-right direction, are coaxially arranged, and are each partially located under the housing 1. In the present embodiment, the driving wheel 2 is located on the outer peripheral side of the housing 1, and is located behind the cleaning module. Both sets of driving wheels 2 are arranged to be rotatable relative to the housing 1 about an axis extending in the left-right direction so as to be capable of running on the ground.

As shown in fig. 1, 2 and 4, there are two floating wheels 3, which are located between the two sets of driving wheels 2 and are respectively fixed opposite to and coaxially arranged with the driving wheels 2 on the corresponding sides. Specifically, the outer diameter of the driving wheel 2 is equal to the outer diameter of the floating wheel 3. The air guide channel 13 is positioned between the two floating wheels 3. The configuration of the two floating wheels 3 and the manner of mounting the driving wheel 2 on the corresponding side are the same, and one of the floating wheels 3 and the driving wheel 2 will be described below as an example.

The floating wheel 3 is mounted on the housing 1 and is partially located under the housing 1, and a shaft sleeve 31 relatively fixed with the corresponding driving wheel 2 is arranged on the side surface of the driving wheel 2, facing the corresponding side, of the floating wheel 3, and the axis of the shaft sleeve 31 is the rotation axis of the driving wheel 2. In order to achieve the mounting and floating up and down of the floating wheel 3, the elastic member acts on the floating wheel 3 and causes the floating wheel 3 to always have a tendency to move downward. Specifically, as shown in fig. 5, a chamber 10 for accommodating a shaft sleeve 31 is provided in the housing 1, a vertically extending connecting member is mounted on the bottom wall of the chamber 10, the upper end of the connecting member is connected with the shaft sleeve 31, the elastic member is a tension spring 5 sleeved on the periphery of the connecting member, and the upper and lower ends of the tension spring 5 are respectively connected with the corresponding positions of the shaft sleeve 31 and the chamber 10. In the present embodiment, the rear side of the outer peripheral wall of the boss 31 has two extending portions 311 arranged at intervals in the left-right direction and each extending laterally, and the front side of the outer peripheral wall of the boss 31 has one of the extending portions 311 described above. Each extension 311 corresponds to a set of connectors and elastic members. One of the extending portions 311 will be described below as an example. The connecting piece is a screw 4, a through hole 3111 which is penetrated vertically and only penetrates through a screw rod portion 41 of the screw 4 downwards is formed in the extension portion 311, the screw rod portion 41 penetrates through the through hole 3111 and then is connected with the bottom wall of the chamber 10 in a threaded mode, and the upper end of the tension spring 5 is connected with the bottom face of the extension portion 311.

In order to realize the rotation of the floating wheel and the driving wheel, as shown in fig. 3, a motor 6 for driving the shaft sleeve 31 to rotate is arranged in the shaft sleeve 31, and an output shaft of the motor 6 is connected with the shaft sleeve 31.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "left", "right", "side", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Since the disclosed embodiments of the utility model may be arranged in a variety of orientations, these directional terms are used by way of illustration only and are in no way limiting.

Claims

1. A brush structure for cleaning machine, with the direction of travel of cleaning machine as the front, includes:

a housing (1);

Two sets of driving wheels (2) which are arranged on the housing (1) at intervals along the left-right direction, are coaxially arranged, are positioned partially below the housing (1), and are arranged so that the two sets of driving wheels (2) can rotate relative to the housing (1) around an axis extending along the left-right direction and can walk on the ground;

It is characterized in that the method also comprises the following steps:

-a floating wheel (3) mounted on said housing (1) and located partially under said housing (1) and coaxially arranged and relatively fixed with respect to at least one set of said driving wheels (2); and

And the elastic piece acts on the floating wheel (3) and enables the floating wheel (3) to always have a downward movement trend.

2. The floor brush structure according to claim 1, wherein: the number of the floating wheels (3) is two, and the two groups of driving wheels (2) are respectively fixed relative to the two floating wheels (3).

3. The floor brush structure according to claim 2, characterized in that: the side of the floating wheel (3) facing the corresponding driving wheel (2) is provided with a shaft sleeve (31) which is relatively fixed with the driving wheel (2), and the axis of the shaft sleeve (31) is the rotation axis of the driving wheel (2).

4. A floor brush structure according to claim 3, wherein: the casing (1) is internally provided with a cavity (10) for accommodating the shaft sleeve (31), a connecting piece which extends vertically is arranged on the bottom wall of the cavity (10), the upper end of the connecting piece is connected with the shaft sleeve (31), the elastic piece is sleeved with a tension spring (5) arranged on the periphery of the connecting piece, and the upper end and the lower end of the tension spring (5) are respectively connected with the corresponding positions of the shaft sleeve (31) and the cavity (10).

5. The floor brush structure according to claim 4, wherein: the connecting piece is screw (4), have extension (311) of side direction extension on the peripheral wall of axle sleeve (31), offer on extension (311) and run through only supply from top to bottom perforation (3111) that screw portion (41) of screw (4) passed downwards, screw portion (41) pass behind perforation (3111) with the diapire threaded connection of cavity (10), the upper end of extension spring (5) with the bottom surface of extension (311) is connected.

6. The floor brush structure according to claim 5, wherein: at least one extending part (311) is arranged on the front side and the rear side of the shaft sleeve (31), and each extending part (311) is correspondingly provided with one screw (4) and an elastic piece.

7. A floor brush structure according to claim 3, wherein: the motor (6) used for driving the shaft sleeve (31) to rotate is arranged in the shaft sleeve (31), and an output shaft of the motor (6) is connected with the shaft sleeve (31).

8. The floor brush structure according to claim 1, wherein: two of said floating wheels (3) are located between two sets of said driving wheels (2).

9. The floor brush structure according to claim 8, wherein: the drive wheel (2) is located on the outer peripheral side of the housing (1).

10. The floor brush structure according to claim 8, wherein: a flow channel (11) extending along the front-rear direction is formed between the front side area of the bottom of the shell (1) and the floor to be cleaned, a cleaning module (12) for cleaning the floor is arranged on the shell (1), and the cleaning module (12) is at least partially positioned in the flow channel (11) and is positioned in front of the driving wheel (2).

11. The floor brush structure according to claim 10, wherein: the housing (1) is internally provided with an air guide channel (13) positioned behind the flow channel (11), wherein the air guide channel (13) is positioned between the two floating wheels (3) and is positioned downstream of the flow channel (11) along a fluid flow path.

12. The floor brush structure according to any one of claims 1 to 11, wherein: the outer diameter of the driving wheel (2) is equal to the outer diameter of the floating wheel (3).

13. A cleaning machine further comprising a floor brush structure, a separation structure for separating fluid, and a blower for providing a source of negative pressure, the floor brush structure, separation structure, and blower being arranged in sequence along a flow path of the fluid, characterized in that the floor brush structure is a floor brush structure as claimed in any one of claims 1 to 12.

14. The cleaning machine of claim 13, wherein: the cleaning machine is a floor cleaning machine, and the separating structure and the fan are both positioned above the floor brush structure.