CN112315391B

CN112315391B - Scrubbing brush and cleaning device

Info

Publication number: CN112315391B
Application number: CN202011167381.4A
Authority: CN
Inventors: 张勇胜; 章孝顺; 魏敏; 王刚; 程义付
Original assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-12-17
Anticipated expiration: 2040-10-27
Also published as: WO2022088871A1; CN112315391A

Abstract

The invention belongs to the technical field of household cleaning, and particularly relates to a floor brush and cleaning equipment. According to the floor brush disclosed by the embodiment of the invention, in the use process, the distance between the base and the ground is adjusted through the adjusting assembly so as to reduce the acting force applied when a user withdraws the floor brush, improve the experience feeling of the user and increase the flexibility of the floor brush when the floor brush withdraws. The adjusting component is connected to the base in a rotatable mode, rolling friction is generated between the adjusting component and the base when the adjusting component is contacted with the ground, and acting force applied when a user withdraws the floor brush is further reduced.

Description

Scrubbing brush and cleaning device

Technical Field

The invention belongs to the technical field of household cleaning, and particularly relates to a floor brush and cleaning equipment.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

At present, manual mops and electric mops are commonly used for cleaning the ground in families. When the manual mop is used for cleaning the ground, the mop needs to be repeatedly and manually cleaned, so that the labor intensity is high, and the working efficiency is low. The electric mop is accepted by more and more users due to the functions of high efficiency, convenience, cleaning convenience and the like.

Among the prior art, the round brush of electronic mop rotates forward and with ground contact for the scrubbing brush has the trend of forward motion, the user pushes away the scrubbing brush before and cleans ground, the withdrawal is so that clean other regions on ground with the position of adjustment scrubbing brush, the in-process of withdrawal, the round brush lasts forward rotation, the motion trend direction and the withdrawal direction of scrubbing brush are opposite, it just can make the scrubbing brush withdraw to other regions to need the user to apply great effort, user experience feels not good.

Disclosure of Invention

The invention aims to at least solve the problems that in the prior art, the movement trend direction of a floor brush is opposite to the retreating direction, so that a user needs to apply a large acting force to retreat and the experience is poor. The purpose is realized by the following technical scheme:

a first aspect of the present invention proposes a floor brush comprising:

a base;

the rolling brush is connected to the base and used for cleaning the ground;

an adjustment assembly rotatably connected to the base for adjusting the distance between the base and the ground to reduce the force applied by a user withdrawing the scrubber.

The floor brush according to the embodiment of the present invention is added with an adjustment assembly to reduce the force applied when the user withdraws the floor brush, as compared with the conventional floor brush. In the use, the round brush rotates forward and with ground contact, make the scrubbing brush have the trend of forward motion, the user pushes away the scrubbing brush before clean ground, the withdrawal is so that clean other regions on ground with the position of adjustment scrubbing brush, the in-process of withdrawal, the round brush lasts forward rotation, the motion trend direction and the withdrawal direction of scrubbing brush are opposite, through the effort of applying when adjusting part in order to reduce the user withdrawal scrubbing brush, improve user's experience and feel, increase the flexibility when the scrubbing brush withdraws. Through the effort that applies when adjusting the distance between base and the ground with the reduction user's withdrawal scrubbing brush of adjusting part, improve user's experience and feel, flexibility when increasing the scrubbing brush withdrawal. The adjusting component is connected to the base in a rotatable mode, rolling friction is generated between the adjusting component and the base when the adjusting component is contacted with the ground, and acting force applied when a user withdraws the floor brush is further reduced.

In some embodiments of the invention, the adjustment assembly comprises:

the connecting piece is rotatably connected to the base and comprises a connecting surface, a first included angle is formed between the connecting surface and the ground, and the front end of the connecting surface is lower than the rear end of the connecting surface;

the movable piece is connected to the connecting piece and is in contact with the ground, the movable piece deviates from the rotating axis of the connecting piece and is connected to the connecting piece, and the movable piece and the connecting piece are driven to synchronously rotate around the rotating axis relative to the base through the friction acting force between the movable piece and the ground so as to adjust the distance between the base and the ground.

In some embodiments of the present invention, the adjusting assembly further includes a rotating shaft, and the movable member is rotatably connected to the connecting member through the rotating shaft.

In some embodiments of the invention, the axis of rotation of the link forms a second angle with the ground.

In some embodiments of the present invention, the connecting member is recessed in a direction away from the ground to form a first accommodating cavity, and the movable member is located in the first accommodating cavity.

In some embodiments of the invention, the movable member is a one-way wheel, a universal wheel, or a ball.

In some embodiments of the invention, the base is recessed away from the ground to form a second receiving cavity, and the adjustment assembly is located in the second receiving cavity.

In some embodiments of the present invention, the adjusting assembly is disposed behind the drum brush in an advancing direction of the floor brush.

In some embodiments of the invention, the adjustment assemblies are provided in at least two groups.

A second aspect of the invention provides a cleaning device, comprising a floor brush, wherein the floor brush is the floor brush in any one of the above technical solutions.

The cleaning device of the embodiment of the invention has the same beneficial effects as the floor brush in the embodiment, and the description is omitted.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic perspective view of an adjusting assembly of a floor brush according to an embodiment of the present invention;

FIG. 2 is a side view of the adjustment assembly shown in FIG. 1 in a first extreme position;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;

FIG. 5 is a side view of the adjustment assembly shown in FIG. 1 in a second extreme position;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is an enlarged view of the structure shown at B in FIG. 6;

FIG. 8 is a perspective view of the adjustment assembly shown in FIG. 1;

fig. 9 is a perspective view of the adjustment assembly shown in fig. 8 in another orientation.

The reference symbols in the drawings denote the following:

1. a base; 11. a second accommodating chamber; 12. a first roller; 13. a second roller;

2. rolling and brushing;

3. an adjustment assembly; 31. a connecting member; 32. a movable member; 33. a rotating shaft; 311. a connecting surface; 312. a first receiving cavity.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Hereinafter, "front end" and "rear end" are relative concepts, and as shown in fig. 6, fig. 6 is rotated 90 ° clockwise, and the left end in fig. 6 is the front end and the right end is the rear end.

As shown in fig. 1, 2 and 5, a floor brush according to an embodiment of the present invention includes:

a base 1;

the rolling brush 2 is connected to the base 1, and the rolling brush 2 is arranged to clean the ground;

and the adjusting component 3 is connected to the base 1, and the adjusting component 3 is arranged to reduce the acting force applied when the user withdraws the floor brush.

The floor brush according to the embodiment of the present invention is added with the adjustment assembly 3 to reduce the force applied when the user withdraws the floor brush, compared to the conventional floor brush. In the use, round brush 2 rotates forward and with ground contact, make the scrubbing brush have the trend of forward motion, the user pushes away the scrubbing brush before and cleans ground, the withdrawal is so that clean other regions on ground with the position of adjustment scrubbing brush, the in-process of withdrawal, round brush 2 lasts forward rotation, the motion trend direction and the withdrawal direction of scrubbing brush are opposite, through the effort of applying when adjusting part 3 in order to reduce the user withdrawal scrubbing brush, improve user's experience and feel, increase the flexibility when scrubbing brush withdraws. Adjust the effort that exerts when reducing the user's withdrawal scrubbing brush through adjusting part 3 distance between base 1 and the ground, improve user's experience and feel, flexibility when increasing the scrubbing brush withdrawal. The adjusting component 3 is rotatably connected on the base 1, rolling friction is generated between the adjusting component and the base when the adjusting component is contacted with the ground, and acting force applied when a user withdraws the floor brush is further reduced.

It should be noted that, in order to reduce the force applied when the user withdraws the floor brush, there are the following ways: firstly, under the condition that the rotation direction of the rolling brush 2 is not changed, a driving source is additionally added to provide a retreating driving force for the floor brush, and when the first mode is adopted, the driving source can be started only when the floor brush is retreated or can be started when the floor brush is pushed forwards and retreated, but the movement directions of the driving source are opposite when the floor brush is pushed forwards and retreated and the driving source needs to be matched with a sensor for use; secondly, a sensor is added, and the rotation direction of the rolling brush 2 is changed by detecting the movement direction of the floor brush through the sensor, so that the floor brush has the tendency of withdrawing; and thirdly, changing the friction force between the floor brush and the ground. The above manner is only used as an example and is not used to limit the protection scope of the present invention.

In some embodiments of the present invention, the first, second and third ways can reduce the force applied by the user when the floor brush is retracted, but the first and second ways involve changes in the circuitry and operating procedures, which increases the cost of the floor brush, and therefore, in one embodiment, the third way is selected. The third way is to reduce the force applied by the user when withdrawing the floor brush by changing the friction between the floor brush and the floor. When two objects, which are in contact with each other and pressed against each other, move or have a tendency to move relative to each other, a force is generated on the contact surfaces that counteracts the relative movement or the tendency to move relative to each other, which force is called a friction force. The in-process round brush 2 that pushes forward at the scrubbing brush relative ground cleans ground, and frictional force between scrubbing brush and the ground is useful frictional force this moment, and at the in-process that the scrubbing brush withdraws relatively ground, the position that the scrubbing brush is located need be adjusted, and frictional force between scrubbing brush and the ground this moment is harmful frictional force, and useful frictional force needs to increase, and harmful frictional force needs to reduce. The means for increasing the beneficial friction force is generally realized by the following methods: the first is to increase the roughness of the contact surface, and the magnitude of the friction force is positively correlated with the magnitude of the roughness; secondly, increasing pressure, wherein the magnitude of the friction force is in positive correlation with the magnitude of the pressure; and thirdly, changing rolling friction into sliding friction. The means for reducing the harmful frictional force is generally implemented by the following methods: first, changing sliding friction to rolling friction, a manner used in the prior art; second, the contact surfaces are separated; thirdly, the pressure is reduced, and the magnitude of the friction force is in positive correlation with the magnitude of the pressure; fourthly, the roughness of the contact surface is reduced, and the magnitude of the friction force is in positive correlation with the magnitude of the roughness. In one embodiment, the second way is used to reduce the detrimental friction between the floor brush and the floor. The adjusting component 3 is movably connected to the base 1, and may be connected to the front side, the rear side, the left side, the right side, the upper side or the lower side of the base 1, and in one embodiment, in order to reduce the volume of the floor brush, the adjusting component 3 is disposed on the lower side of the base 1, that is, connected to the side of the base 1 facing the ground. One end of the adjusting component 3 is connected to one side of the base 1 facing the ground, the other side of the adjusting component is in contact with the ground, the distance between the base 1 and the ground is adjusted through the adjusting component 3, namely the distance between the base and the ground is adjusted to reduce the acting force applied when the user withdraws the rolling brush 2, and the contact surface of the floor brush and the ground is at least partially separated.

Wherein, the quantity of adjusting part 3 can be a set, two sets or multiunit, and in one embodiment, adjusting part 3 is provided with two sets ofly, and two sets of adjusting part 3's structure is the same completely, the symmetry sets up respectively in the both sides of base 1. Two sets of adjusting part 3 carry out synchronous the adjusting to the different positions of scrubbing brush to keep the distance between scrubbing brush both sides and the ground to change in step.

In some embodiments of the present invention, the driving source may be additionally added to provide the backward driving force to the floor brush according to the foregoing, but in order to reduce the weight of the floor brush, the production cost and the electrical failure rate, the adjustment of the distance between the base and the ground is achieved by using a mechanical structure. As shown in fig. 3, fig. 4, fig. 6 to fig. 9, the adjusting assembly 3 includes a connecting member 31 and a movable member 32, the connecting member 31 is rotatably connected to the base 1, the connecting member 31 includes a connecting surface 311, a first included angle is formed between the connecting surface 311 and the ground, a front end of the connecting surface 311 is lower than a rear end of the connecting surface 311, the movable member 32 is connected to the connecting member 31, a gap is provided between a rotation axis of the movable member 32 and a rotation axis of the connecting member 31, the movable member 32 uses the rotation axis of the connecting member 31 as a rotation center, the movable member 32 and the connecting member 31 rotate synchronously relative to the base 1 through a friction force between the movable member 32 and the ground, and further, a distance between the base 1 and the ground is adjusted. This kind of regulation mode has combined eccentric wheel and universal wheel, and connecting piece 31 uses the axis of rotation of self to rotate as center relative base 1, drives moving part 32 and follows the synchronous rotation of connection face 311, makes moving part 32 reciprocating motion between the high point of connection face 311 and the low point of connection face 311, can understand that, at the in-process that the scrubbing brush pushed forward or withdraws, connecting piece 31 can produce the lift displacement in the direction of perpendicular to ground. In the process of pushing the floor brush forwards, the friction force between the ground and the floor brush needs to be increased to enhance the cleaning capability of the floor brush, and the distance between the base and the ground needs to be gradually reduced along with the forward pushing of the floor brush. In the process of backing up the scrubbing brush, the effort that the scrubbing brush was applyed is required to reduce the frictional force between scrubbing brush and the ground and then reduce the user and back up the scrubbing brush, along with the backing up of scrubbing brush, the distance between base and the ground needs progressively to make the contact surface between scrubbing brush and the ground separate gradually, and adjusting part 3 rotates with base 1 to be connected, changes sliding friction into rolling friction, and then reduces the frictional force between scrubbing brush and the ground. Therefore, when the movable member 32 rotates to the high point of the connection surface 311, that is, when the movable member 32 rotates to the rear end, the distance between the ground and the floor brush is minimum, and the movable member 32 is at the first limit position; when the movable member 32 rotates to the low point of the connection surface 311, that is, when the movable member 32 rotates to the front end, the distance between the ground and the floor brush is the largest, and the movable member 32 is at the second limit position; when the movable member 32 rotates to a position between the high point and the low point of the connection surface 311, the distance between the ground and the floor brush is at an intermediate position between the maximum and the minimum. It is determined that as the floor brush is pushed forward, the direction of rotation of the movable member 32 is opposite to the direction of movement of the floor brush to decrease the distance between the base and the floor, and as the floor brush is retracted, the direction of rotation of the movable member 32 is opposite to the direction of movement of the floor brush to increase the distance between the base and the floor. The connecting piece 31 is rotatably connected to the base 1, and in the process of pushing the floor brush forwards or withdrawing, the adjusting component 3 can rotate clockwise relative to the rotating axis of the connecting piece 31 as a rotating center and also can rotate anticlockwise relative to the rotating axis of the connecting piece 31 as a rotating center. The distance between the base and the ground is adjusted by means of the friction force between the movable piece 32 and the ground, the adjusting component 3 is driven to rotate without additionally increasing a driving source, the rotation of the adjusting component 3 is synchronously performed along with the movement of the floor brush, the structure is simple, complex circuits and control programs are not involved, the structure is simple and reliable, and the cost is low.

Wherein the first included angle is an acute angle or an obtuse angle, i.e., the first included angle ranges from 1 ° to 89 ° and 91 ° to 179 °, inclusive of 1 °, 89 °, 91 °, and 179 °. In one embodiment, the front end of the floor is directed to the rear end as a positive direction, and a first included angle between the connection surface 311 and the positive direction is an acute angle, the size of the acute angle is related to the cleaning capability of the ground brush when the floor brush is pushed forwards and the flexibility of the floor brush when the floor brush is pulled backwards, the angle needs to be kept within a certain range, and the angle can be set according to the needs of actual conditions. In the process of pushing or withdrawing the floor brush forwards, the movable part 32 and the connection surface 311 rotate synchronously relative to the base 1, the movable part 32 and the connection surface 311 can rotate relatively, a rotary connection mode can be adopted, relative rotation can not occur, and the relative positions of the movable part 32 and the connection surface 311 can be fixed by adopting a bonding, welding or screw connection mode.

In some embodiments of the present invention, in one embodiment, relative rotation may occur between the moveable member 32 and the connection surface 311. The moving part 32 can be a rolling member such as a one-way wheel, a universal wheel or a ball, when the moving part 32 is a one-way wheel, a universal wheel or a ball, the one-way wheel, the universal wheel or the ball is rotatably connected to the connecting part 31 through the rotating shaft 33, the rotating shaft 33 is parallel to the ground, the adjusting component 3 rotates relative to the base 1, along with the forward pushing or the backward withdrawing of the floor brush, the moving part 32 rotates relative to the ground by using the rotating shaft 33 as a rotating center, so that rolling friction is generated between the moving part 32 and the ground, further, the friction force between the moving part 32 and the ground is further reduced, the acting force applied when a user withdraws the floor brush is reduced, and the flexibility of the floor brush is improved. The movable element 32 may be a combination of a one-way wheel, a universal wheel, or a ball, for example, the movable element 32 may be a combination of a one-way wheel and a ball, the ball is rigidly connected to the connecting element 31, the one-way wheel is rigidly connected to the ball through a rotating shaft 33, and the one-way wheel can rotate around the rotating shaft 33, wherein the positions of the ball and the one-way wheel are interchangeable. The combination of the universal wheel and the ball and the combination of the one-way wheel and the universal wheel can refer to the combination of the one-way wheel and the ball. As shown in fig. 3, 4, 6-9, the movable member 32 is a one-way wheel.

In some embodiments of the present invention, according to the foregoing, the connection surface 311 on the connection member 31 forms a first included angle with the ground, so that the movable member 32 can generate a lifting displacement in a direction perpendicular to the ground during the movement between the front end and the rear end, and the rotation axis of the connection member 31 may be perpendicular to the connection surface 311, or may form an acute angle or an obtuse angle with the connection surface 311. As shown in fig. 3, 4, 6 to 7, in one embodiment, the rotational axis of the connecting member 31 is perpendicular to the connecting surface 311, i.e. the rotational axis of the connecting member 31 forms a second angle with the direction perpendicular to the ground, the second angle being acute or obtuse, i.e. the second angle ranges from 1 ° to 89 ° and 91 ° to 179 °, inclusive of 1 °, 89 °, 91 ° and 179 °. In one embodiment, the direction from the ground to the floor brush is taken as the positive direction, and a second included angle between the rotation axis and the positive direction is an acute angle, wherein the size of the acute angle is related to the cleaning capacity of the floor brush during forward pushing and the flexibility of the floor brush during backward pulling, and the angle needs to be kept within a certain range, and the angle can be set according to the needs of actual conditions.

In some embodiments of the present invention, the movable element 32 may be outside the base 1, or may be partially or completely located inside the base 1, as shown in fig. 4, 7 and 8, in order to reduce the volume of the floor brush, the connecting element 31 is recessed away from the ground to form a first accommodating cavity 312, and the movable element 32 is located inside the first accommodating cavity 312. As shown in fig. 4 and 7, the base 1 is recessed away from the ground to form a second accommodating cavity 11, and the adjusting assembly 3 is located in the second accommodating cavity 11. Set up adjusting part 3 into hidden, the volume of furthest reduction scrubbing brush to be convenient for the user accomodate and deposit.

In some embodiments of the present invention, the adjustment assembly 3 is rotatably connected to the base 1, but is detachably connected to the base 1, so that the user can replace, inspect and maintain the adjustment assembly 3. In addition, in the cleaning process, impurities such as dust and hair easily enter the first accommodating cavity 312 and the second accommodating cavity 11 to cause that the adjusting component 3 cannot adjust the distance between the ground and the base 1, and the first accommodating cavity 312, the second accommodating cavity 11 and the adjusting component 3 can be thoroughly cleaned by detaching the movable piece 32 and the connecting piece 31, so that the adjusting component 3 can be always kept in a normal working state.

In some embodiments of the present invention, as shown in fig. 1, 2 and 5, at least one roller is further disposed on the base 1, and the roller is rotatably connected to the rear of the floor brush, so as to increase flexibility of the floor brush during forward and backward movements. In one embodiment, two rollers are provided, namely a first roller 12 and a second roller 13, and the first roller 12 and the second roller 13 are symmetrically arranged on two sides of the base 1.

In some embodiments of the present invention, the adjusting assembly 3 may be disposed in front of the base 1 and may also be disposed behind the roll brush 2. It can be understood that the length of the connection surface 311, the size of the first included angle, and the setting position of the adjusting component 3 all have an influence on the adjustment of the distance between the base 1 and the ground, and the above-mentioned contents can be reasonably set according to the needs of actual situations, and are not described herein again.

In some embodiments of the present invention, as shown in fig. 3, 4, 6 to 7, the connecting member 31 is rotatably connected to the base, and in order to reduce the friction generated by the rotation of the connecting member 31 relative to the base 1, the floor brush further includes a bearing, and the bearing is sleeved on the connecting member 31.

In some embodiments of the present invention, the distance between the base 1 and the ground is adjusted by synchronously rotating the movable member 32 and the connecting member 31 relative to the base 1, and in order to further accelerate the process of withdrawing the floor brush, an elastic member may be further disposed between the connecting member 31 and the base 1, and the elastic member is in a deformed state when the distance between the base 1 and the ground is minimum. The deformation state includes two cases: the first, in a stretched state, and the second, in a compressed state. The following description will be made by taking an example in which the elastic member is in a compressed state. With the forward pushing of the floor brush, the movable element 32 and the connecting element 31 rotate synchronously relative to the base 1 and move from the front end to the rear end to compress the elastic element; with the floor brush being retracted, the elastic force generated by the elastic element due to being compressed drives the movable element 32 to move from the rear end to the front end rapidly, thereby accelerating the retraction of the floor brush and further reducing the acting force applied when the user retracts the floor brush. In one embodiment, the elastic member is a torsion spring, and the torsion spring is sleeved on the connecting member 31, and one end of the torsion spring is fixedly connected with the connecting member 31, and the other end of the torsion spring is fixedly connected with the base 1.

It should be noted that the connecting member 31 is not limited to the shape shown in fig. 3, 4, and 6 to 7. For example, the connecting element 31 can be designed as an L-shaped rod, but of course can also be designed in other shapes, as long as the above-described function is achieved.

The embodiment of the invention also provides cleaning equipment, which comprises a floor brush, wherein the floor brush is the floor brush in any one of the embodiments.

In some embodiments of the invention, the cleaning apparatus may be a vacuum cleaner, for example an upright cleaner, a handheld cordless cleaner. When the cleaning equipment is a dust collector, the base 1 is provided with the suction inlet, the distance between the base and the ground is changed through the adjusting assembly 3, and in the forward pushing process, the distance between the base and the ground is reduced, so that the interaction force between the rolling brush 2 and the ground is increased, and the cleaning effect is improved; in the process of withdrawing, the distance between base and the ground increases, raises in other words the position that makes the sunction inlet, avoids the sunction inlet to make a round trip to carry subaerial rubbish or water stain, reduces the user to the relapse cleanness in same region, has reduced user's intensity of labour, has improved clean efficiency. The cleaning apparatus may also be a floor mopping machine, such as a hand held floor mopping machine, a wet and dry all in one machine, or a carpet washing machine. When cleaning device is for mopping machine, 2 moist backs of round brush and ground contact, change the distance between base and the ground through adjusting part 3, in-process that pushes away in the front, the distance between base and the ground reduces, make the interaction force between round brush 2 and the ground increase, clear effect has been improved, the in-process of withdrawing, the distance between base and the ground increases, avoid round brush 2 with subaerial rubbish or water stain transport back and forth, reduce the repeated cleanness of user to the same region, user's intensity of labour has been reduced, cleaning efficiency has been improved. In addition, the scheme adopted by the invention does not relate to complex circuits and control programs, and has simple and reliable structure and lower cost.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A floor brush, comprising:

a base;

the rolling brush is connected to the base and used for cleaning the ground;

an adjustment assembly rotatably coupled to the base for adjusting a distance between the base and a floor to reduce an applied force of a user withdrawing the floor brush, the adjusting component comprises a connecting piece and a moving piece, the connecting piece is rotationally connected to the base, the connecting piece comprises a connecting surface, a first included angle is formed between the connecting surface and the ground, the front end of the connecting surface is lower than the rear end of the connecting surface, the movable piece is connected on the connecting piece and is contacted with the ground, the movable piece deviates from the rotating axis of the connecting piece and is connected on the connecting piece, the movable piece and the connecting piece are driven to synchronously rotate around the rotation axis relative to the base through the friction acting force between the movable piece and the ground so as to adjust the distance between the base and the ground.

2. A floor brush as defined in claim 1 wherein said adjustment assembly further includes a pivot shaft, said movable member being pivotally connected to said connecting member via said pivot shaft.

3. A floor brush as claimed in claim 1 wherein the axis of rotation of the attachment member forms a second angle with the floor surface.

4. A floor brush as claimed in claim 1, wherein the connecting member is recessed away from the floor to form a first receiving cavity, and the movable member is located in the first receiving cavity.

5. A floor brush as claimed in claim 1 wherein the movable member is a one-way wheel, a universal wheel or a ball bearing.

6. A floor brush as claimed in claim 1, wherein the base is recessed away from the floor to form a second receiving cavity, the adjustment assembly being located within the second receiving cavity.

7. A floor brush as claimed in claim 1, characterized in that the adjusting assembly is arranged behind the roller brush in the forward direction of the floor brush.

8. A floor brush as claimed in claim 1, wherein the adjustment assembly is provided in at least two groups.

9. A cleaning apparatus, comprising:

a floor brush according to any one of claims 1-8.