Floor brush assembly of surface cleaning device and surface cleaning device

Abstract

The utility model provides a floor brush assembly of a surface cleaning device. The floor brush assembly comprises a body; the rolling wheel is connected with the body and located on the rear portion or the lower portion of the body, and the rolling wheel is configured to rotatably support the body; the roller motor is connected with the roller and used for electrically driving the roller; the stirring piece is connected with the body, located on the front portion of the body and configured to rotatably clean the surface to be cleaned; the stirring part motor is connected with the stirring part and is used for electrically driving the stirring part; the stirring part comprises an annular belt, the annular belt is driven by the stirring part motor to rotate circularly, and surface contact is achieved between the annular belt and a surface to be cleaned; and the encoder is connected with the roller motor and is used for sensing the rotation direction of the roller. The utility model further provides a surface cleaning device.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a floor brush assembly of a surface cleaning device and a surface cleaning device. BACKGROUND

[0002] The background section provided herein is merely for information and is not necessarily prior art.

[0003] A domestic scrubber can use cleaning liquid to clean a floor or other surface to be cleaned, thereby improving the cleaning effect of the floor or other surface to be cleaned. Therefore, in recent years, domestic scrubbers have been widely popularized.

[0004] A crawler-type scrubber is a surface cleaning device with an endless belt as an agitator. As described in Chinese Invention Patent CN114376465B, a surface cleaning device with an endless belt portion can effectively increase the contact area between the cleaning module and the surface to be cleaned, thereby making the wet surface cleaning device have a better cleaning effect, and the cleaning efficiency is greatly improved compared with traditional scrubbers.

[0005] Handheld semi-automatic cleaning devices including crawler-type scrubbers are currently usually driven by the force of the user's arm to move on the surface to be cleaned. The friction between the crawler-type scrubber and the surface to be cleaned is very large, and the scrubber usually includes a relatively complex multi-load structure and has a relatively heavy weight. When the user moves and uses it, the user will be tired. UTILITY MODEL CONTENT

[0006] To solve one of the above technical problems, the present disclosure provides a floor brush assembly of a surface cleaning device and a surface cleaning device.

[0007] According to one aspect of the present disclosure, a floor brush assembly of a surface cleaning device is provided, comprising: a body;

[0008] A roller is connected to the body and located at the rear or lower part of the body, and the roller is configured to rotatably support the body;

[0009] A roller motor is connected to the roller and used to electrically drive the roller;

[0010] An agitator is connected to the body and located at the front of the body, and is configured to rotatably clean the surface to be cleaned;

[0011] An agitator motor is connected to the agitator and used to electrically drive the agitator;

[0012] The agitator includes an endless belt, which rotates in a loop under the drive of the agitator motor and realizes surface contact with the surface to be cleaned;

[0013] An encoder is connected to the roller motor for sensing the direction of rotation of the roller.

[0014] According to one example of the present disclosure, the roller is two, one on each side of the body.

[0015] According to one example of the present disclosure, the roller is provided with a roller motor respectively, and the roller motor controls the roller independently.

[0016] According to one example of the present disclosure, a controller is configured to control the output shaft of the roller motor to reverse direction.

[0017] According to one example of the present disclosure, when the roller motor is not powered, the roller motor and the roller can be manually rotated.

[0018] According to one example of the present disclosure, when the roller motor is powered, the output shaft of the roller motor reverses direction relative to the output shaft of the agitator motor.

[0019] According to another aspect of the present disclosure, a surface cleaning device is provided, comprising:

[0020] An upright body;

[0021] A floor brush assembly configured to be pivotably connected to the upright body;

[0022] The floor brush assembly comprises:

[0023] A body;

[0024] A roller connected to the body, located at the rear or lower part of the body, and configured to rotatably support the body;

[0025] A roller motor connected to the roller for electrically driving the roller;

[0026] An agitator connected to the body, located at the front of the body, and configured to rotatably clean the surface to be cleaned;

[0027] An agitator motor connected to the agitator for electrically driving the agitator;

[0028] The agitator comprises an annular belt, which rotates in a loop under the drive of the agitator motor and achieves surface contact with the surface to be cleaned;

[0029] An encoder is connected to the roller motor for sensing the direction of rotation of the roller.

[0030] A handle is located on the upright body, allowing a user to hold the handle and move the floor brush assembly on the surface to be cleaned by the roller.

[0031] According to one example of the present disclosure, the upright body is configured to be substantially parallel to the surface to be cleaned in a working state of the surface cleaning device.

[0032] According to one example of the present disclosure, the two rollers are respectively installed on the left and right sides of the body.

[0033] According to one example of the present disclosure, the rollers are respectively provided with roller motors, and the roller motors independently control the rollers. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the general description of the disclosure given above, and the detailed description of the embodiments below, serve to explain the principles of the present disclosure. These drawings are included herewith and constitute a part of this specification.

[0035] Figure 1 is a structural schematic diagram of a surface cleaning device according to one embodiment of the present disclosure.

[0036] Figure 2 is a structural schematic diagram of a brush assembly according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The present disclosure will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related content, and not to limit the present disclosure. In addition, it should be noted that only parts related to the present disclosure are shown in the drawings for ease of description.

[0038] It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other without conflict. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0039] Unless otherwise specified, the exemplary examples shown will be understood to provide exemplary features of various details that can implement the technical concepts of the present disclosure in practice. Therefore, unless otherwise specified, the features of various examples can be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of the present disclosure.

[0040] The use of cross-hatching and / or shading in the drawings is generally used to illustrate the boundaries and / or transitions from one portion of a part to another portion of the part. As such, unless specified, the presence of cross-hatching or shading in no way supercedes, or otherwise clarifies, any aspect of the parts described as being clear, transparent, opaque, solid, formed, unformed, etc. Moreover, in the drawings, the size and relative sizes of parts can be exaggerated for clarity. Like reference numerals can be used to denote like parts containing similar elements throughout the description and figures. When exemplary examples can be practiced differently, a specific sequence of processes can be performed in a different order than described. For example, two consecutively described processes can be performed substantially simultaneously or in the reverse order described. Furthermore, like reference numerals denote like parts throughout the figures.

[0041] When a part is referred to as being "on" or "over" another part, "connected to" or "coupled to" another part, it can be directly on, directly connected to, or directly coupled to the other part, or intervening parts can be present. In contrast, when an part is referred to as being "directly on," "directly connected to," or "directly coupled to" another part, there are no intervening parts present. For this reason, the term "connected" can mean physical, electrical, and / or the like connection, with or without intervening parts.

[0042] For descriptive purposes, the disclosure can use spatial or relative terms, such as "below," "lower," "lowermost," "above," "upper," "uppermost," "vertical," "horizontal," and the like, to describe the relationship between one part and another part as the figures are depicted. Unless otherwise specified, the spatial and relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture 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" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. Moreover, the device can be otherwise oriented (for example, rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0043] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "comprise," "include," "contain," and / or "comprising," "including," and / or "contain" are used in the detailed description and / or claims, such terms are intended to be inclusive in a manner similar to the term "comprise" as an open transition term without precluding the presence of additional, non-recited members, elements, steps, operations, components, assemblies, and / or groups thereof. It is also noted that, as used herein, the terms "substantially," "approximately," and other similar terms are used as synonyms for "about," and are intended to mean that a value is within a reasonable expected range of values (i.e., a range of values that would be considered acceptable by one of ordinary skill in the art to which the disclosure pertains) when used in a description of a parameter, property, state, condition, and / or other characteristic.

[0044] Reference Figure 1 The surface cleaning device 100 includes a surface cleaning device body 102 having a dirt collection bin 104 mounted therein for collecting dirt particles from a target surface to be cleaned, a floor brush assembly 106 disposed below the surface cleaning device body and pivotally coupled to the surface cleaning device body 102 for picking up dirt particles from the target surface to be cleaned, and a handle 108 disposed above the surface cleaning device body 102 and graspable by a user to perform the cleaning. In one example, the surface cleaning device body 102 is rotatable between an angle of a parallel attitude, in which the surface cleaning device body 102 is parallel to the target surface to be cleaned, and an angle of a self-supporting attitude, in which the surface cleaning device body 102 is perpendicular to the target surface to be cleaned, when the handle 108 is subjected to an external force, while maintaining a continuous operation.

[0045] One or more rollers 202 can be disposed in the surface cleaning device body 102 and movably support the surface cleaning device body 102. The rollers 202 can be disposed on both sides of the surface cleaning device body 102, respectively, and facilitate linear forward and backward movement of the surface cleaning device body 102 and a change in direction.

[0046] The surface cleaning device body 102 is disposed and rotatably coupled to the floor brush assembly 106 to change an arrangement angle with respect to the target surface to be cleaned. A user can support the surface cleaning device body 102 to maintain a state of being rotated toward the target surface to be cleaned throughout the cleaning.

[0047] The dirt collection bin 104 is detachably mounted to a rear surface of the surface cleaning device body 102.

[0048] That is, the air current drawn into the surface cleaning device main body 102 through the brush assembly 106 is supplied to the dirt collection tank 104. The dirt particles and / or the solid-liquid mixture contained in the air current supplied to the dirt collection tank 104 are finally collected in the dirt collection tank 104. The clean air separated therefrom is discharged to the outside of the surface cleaning device main body 102.

[0049] The dirt collection tank 104 is detachably installed to the surface cleaning device main body 102, and the user can detach the dirt collection tank 104 from the surface cleaning device main body 102 and dispose of the dirt particles collected in the dirt collection tank 104.

[0050] The brush assembly 106 includes an endless belt 204 that removes and absorbs the dirt particles scattered on the cleaning target surface by the surface cleaning method, and a neck portion 206 to which the surface cleaning device main body 102 is installed.

[0051] When the user performs cleaning, the endless belt 204 moves in the forward and backward directions with respect to the cleaning target surface while rotating, to absorb the dirt particles scattered on the cleaning target surface.

[0052] A pair of rollers 202 is rotatably provided at both sides of the neck portion 206 to which the surface cleaning device main body 102 is installed. That is, when the endless belt 204 moves along the cleaning target surface, the rollers connected to both sides of the neck portion 206 of the endless belt 204 rotate to facilitate the movement of the brush assembly 106 along the cleaning target surface.

[0053] Meanwhile, a handle 108 is provided in the upper portion of the surface cleaning device main body 102. When cleaning is performed, the user can hold the handle 108 and support the surface cleaning device main body 102 so that the surface cleaning device main body 102 can support the rotating state. The user can perform the cleaning process while pushing or pulling the surface cleaning device main body 102 by using the handle 108.

[0054] A control panel 110 is provided on the handle 108, and the user can control the operation state of the vacuum surface cleaning device by pressing one or more buttons provided in the control panel 110.

[0055] Examples of the present disclosure can be applied to an upright surface cleaning device and a self-moving surface cleaning robot with an endless belt agitator. In consideration of the movement of the surface cleaning device body, it is more important to continuously pay attention to the movement of the surface cleaning device body than other parts when the upright surface cleaning device is operated by the user. That is, the surface cleaning device body of the upright surface cleaning device makes continuous forward and backward movement. In contrast, the self-moving surface cleaning robot body can automatically make forward and backward movement during the cleaning process.

[0056] According to examples of the present disclosure, the surface cleaning device provides an electrically driven roller, that is, the roller of the surface cleaning device is motorized or driven. The driving of the roller can include both clockwise and counterclockwise movement, and is more suitable for an upright surface cleaning device.

[0057] Hereinafter, a structure and an operation flow according to examples of the present disclosure will be described in detail. It will be more clearly understood that such a structure and operation flow are more suitable for an upright surface cleaning device.

[0058] Referring to Figure 2 According to an example of the present disclosure, the surface cleaning device includes a motor 208 connected to the roller 202 to provide a rotational force and rotate together with the roller 202 when the roller 202 rotates. That is, when the motor 208 is electrically driven, the roller 202 rotates so that the surface cleaning device body of the surface cleaning device can be electrically moved.

[0059] When the roller 202 rotates, the motor 208 is rotatable by the rotation of the roller 202. The motor 208 can be manually driven by the manual rotation of the roller without being actively driven by the electric power. Such manual rotation of the motor 208 can not require the current to be applied to the motor 208 of the roller, unlike the electrically driven rotation.

[0060] The motor 208 can further provide a rotational driving force to rotate the roller 202. That is, the motor 208 can actively rotate the roller 202. When the current is applied to the motor 208, the roller 202 can be electrically rotated by the electrical driving of the motor.

[0061] According to the illustrated example, the surface cleaning device can include an encoder that senses a rotation state of the roller 202. The rotation state means a rotation direction. The encoder can sense the rotation direction of the roller 202 and calculate a moving direction of the surface cleaning device body.

[0062] The encoder is configured to control a component for driving the roller or the motor and measure the rotation direction of the roller, thereby evaluating a moving state of the user manipulating the surface cleaning device.

[0063] In one example, the encoder can be attached to the motor 208, and a shaft of the motor 208 is inserted into the encoder so that the encoder can detect the rotation direction and the rotation speed of the motor. The encoder detects the rotation speed of the motor 210 and transmits the rotation speed of the motor currently operating to a controller that controls the motor 208. In this case, the encoder can transmit information about whether the rotation of the motor is in a clockwise direction or a counterclockwise direction.

[0064] In addition, the controller can calculate the moving acceleration of the surface cleaning device body 102 based on information about the number of rotations sensed by the encoder. When the encoder is capable of sensing the change in the number of rotations according to time, the controller can calculate the moving acceleration of the surface cleaning device body 102 by multiplying the diameter by the number of rotations.

[0065] In one example, the rollers 202 can be provided in left and right sides of the surface cleaning device body 102, respectively. The motor 208 can also be provided in the left and right rollers 202, respectively. That is, a motor for driving the right roller and two motors for driving the left rollers can be provided to control the left and right rollers, respectively.

[0066] When the two rollers 202 rotate in the clockwise direction at the same rotational speed, it can be determined that the surface cleaning device body moves linearly forward. When the two rollers 202 rotate in the counterclockwise direction at the same rotational speed, it can be determined that the surface cleaning device body 102 moves backward.

[0067] In the illustrated example, the motor 208 can control the driving rollers to rotate to properly control the movement of the surface cleaning device body according to the moving direction of the surface cleaning device body. That is, the movement of the surface cleaning device body can be properly controlled according to the intention of the user to operate the surface cleaning device.

[0068] When the surface cleaning device moves on a surface to be cleaned, the endless belt 204 is driven by the agitator motor (not shown) to contact and self-rotate with the surface to be cleaned. Since the endless belt 204 has a width in the left and right directions of the surface cleaning device and a length in the front and back directions of the surface cleaning device, a contact surface with the surface to be cleaned is formed under the restrictions of the length and the width. In particular, when the surface cleaning device is operated, the endless belt 204 is driven in the clockwise direction, the above-mentioned contact surface is in contact and friction with the surface to be cleaned, and an additional driving force for moving the surface cleaning device forward is generated. When the user operates the surface cleaning device to move forward, this additional driving force helps the user to push the surface cleaning device forward. However, when the user pulls the surface cleaning device backward at the limit of the operation, the additional driving force generated by the above-mentioned endless belt 204 becomes a resistance. In particular, when the endless belt 204 is applied with cleaning liquid, the excess air in the contact surface is pressed out, and under the action of atmospheric pressure, this resistance makes it more difficult to pull the surface cleaning device backward.

[0069] If it is an upright surface cleaning device, the user can push or pull the surface cleaning device body 102 by using the handle 108. Accordingly, a preset value can be set as a minimum speed at which cleaning is performed. For example, when the user wants to hold the surface cleaning device handle 108 to perform cleaning, the motor 208 can not be electrically driven in the movement of the surface cleaning device body.

[0070] In the case of the upright surface cleaning device, the user can hold the handle 108 to tilt the surface cleaning device backward to a preset angle. At this time, the rollers are not electrically driven because it means that the user is not ready to move the upright surface cleaning device to perform cleaning.

[0071] If a relatively small force is applied to the surface cleaning device body, the surface cleaning device can move on a hard wooden floor. Even if a force is applied enough to tilt the upright surface cleaning device, the user can move the upright surface cleaning device forward.

[0072] Therefore, when it is determined by the encoder that the surface cleaning device body 102 moves in a direction away from the user (forward), it is preferable that the rollers 202 are not electrically driven by the motor 208. Because the ring belt 204 agitator itself generates an additional driving force in the forward direction, it is sufficient to assist the user with a forward pushing force. If the motor 208 is driven, the surface cleaning device body 102 can move at an unintended speed and the user can feel inconvenient.

[0073] Preferably, when it is determined by the encoder that the surface cleaning device body 102 moves in a direction approaching the user (backward), a current can be applied to the motor 208. In one example, when the speed of the backward movement of the surface cleaning device body 102 reaches a preset value, a current is applied to the motor 208 to cause the rollers to rotate counterclockwise to generate a driving force in a direction approaching the user (backward).

[0074] After the speed of the surface cleaning device body 102 is higher than the preset value, the current applied to the motor 208 can become greater depending on the speed of the surface cleaning device body 102. When the speed of the surface cleaning device body 102 becomes high due to the user's manipulation, it is analyzed that the user wants to move the surface cleaning device body 102 quickly. This means that as the speed of the surface cleaning device body 102 becomes high, the force applied by the user to the surface cleaning device body 102 becomes stronger. Therefore, as the speed of the surface cleaning device body 102 becomes high, the increase in the force required to be applied to the surface cleaning device body 102 by the user can be minimized by increasing the current applied to the motor.

[0075] The higher the speed of the surface cleaning device body 102, the greater the current applied to the motor 208 to increase the rotational speed of the motor 208. In the illustrated example, the current applied is increased in proportion to the rotational speed of the motor 208 by feedback of the rotational direction and speed of the motor 208 by the encoder. The point in time at which the current is applied to the motor can be the point in time at which the moving speed of the surface cleaning device body reaches a preset value.

[0076] The encoder can measure the point in time at which the speed of the rearward movement of the surface cleaning device body 102 changes from positive to negative. The point in time at which the speed of the surface cleaning device body 102 changes from positive to negative is substantially coincident with the point in time at which the rotation of the roller 202 changes from clockwise to counterclockwise. This condition indicates that the user, after pulling the surface cleaning device body 102 rearward, wants to again push the surface cleaning device body 102 forward to achieve repeated cleaning or washing of the surface to be cleaned.

[0077] As the user pulls the surface cleaning device body 102 rearward, the speed of movement of the surface cleaning device body increases and then decreases. As the user's body is stationary and the surface cleaning device body is pulled back by the recovery arm, the movement of the surface cleaning device body 102 stops momentarily.

[0078] Generally, the repeated forward and rearward movement of the surface cleaning device body is a routine operation for an upright surface cleaning device.

[0079] The point in time at which the surface cleaning device begins to move rearward can be determined as the point in time at which current begins to be applied to the motor. That is, preferably, current is applied to the motor when the surface cleaning device begins to move rearward for cleaning.

[0080] In summary, to facilitate the user to conveniently operate the surface cleaning device to be pulled back, when the surface cleaning device body 102 is operated by the user to move rearward at a speed above a predetermined value, the controller can electrically drive the motor 208 by applying current to the motor 208, so that the roller rotates counterclockwise to generate a rearward driving force, to facilitate the user to pull back the surface cleaning device. When the surface cleaning device body 102 is stationary or the direction of movement of the surface cleaning device body 102 is forward movement, the controller can not apply current to the motor 208. That is, the point in time at which the motor is driven can be determined by the direction and speed of the rearward movement of the surface cleaning device body 102.

[0081] Therefore, the user can easily and conveniently operate the movement of the surface cleaning device to move the surface cleaning device rearward. By the rearward driving force of the roller, the user can pull back the moving surface cleaning device with relatively small force and can conveniently use the surface cleaning device, to overcome the forward drag force generated by the annular belt when rotating clockwise.

[0082] In the description of the specification, the description of the terms "one example / way", "some examples / ways", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the example / way or example are included in at least one example / way or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same example / way or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate way in one or more examples / ways or examples. In addition, the person skilled in the art can combine and combine the different examples / ways or examples described in the specification and the features of the different examples / ways or examples, without contradiction.

[0083] Those skilled in the art will understand that the above embodiments are merely for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. Other changes or modifications can be made on the basis of the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A floor brush assembly for a surface cleaning apparatus, the floor brush assembly comprising: Comprising: a body; a roller connected with the body, located at the rear or lower part of the body, the roller being configured to rotatably support the body; a roller motor connected with the roller for electrically driving the roller; a stirring member connected with the body, located at the front of the body, configured to rotatably clean the surface to be cleaned; a stirring member motor connected with the stirring member for electrically driving the stirring member; the stirring member comprises an annular belt, which rotates in circulation under the driving of the stirring member motor, and realizes surface contact with the surface to be cleaned; an encoder connected with the roller motor for sensing the rotation direction of the roller.

2. The brush assembly of claim 1, wherein, The roller is two, respectively installed on the left and right sides of the body.

3. The brush assembly of claim 2, wherein, The roller motor is respectively installed on the roller, and the roller motor independently controls the roller.

4. The brush assembly of claim 1, wherein, Comprising a controller configured to control the output shaft direction of the roller motor.

5. The brush assembly of claim 1, wherein, When the roller motor is not powered, the roller motor and the roller can be manually rotated.

6. The brush assembly of claim 1, wherein, When the roller motor is powered, the output shaft direction of the roller motor is opposite to the output shaft direction of the stirring member motor.

7. A surface cleaning device characterized by Comprising: an upright body; a brush assembly configured to be pivotably connected with the upright body; the brush assembly comprises: a body; a roller connected with the body, located at the rear or lower part of the body, the roller being configured to rotatably support the body; a roller motor connected with the roller for electrically driving the roller; a stirring member connected with the body, located at the front of the body, configured to rotatably clean the surface to be cleaned; a stirring member motor connected with the stirring member for electrically driving the stirring member; the stirring member comprises an annular belt, which rotates in circulation under the driving of the stirring member motor, and realizes surface contact with the surface to be cleaned; an encoder connected with the roller motor for sensing the rotation direction of the roller. a handle located on the upright body, allowing the user to hold the handle to move the brush assembly on the surface to be cleaned by the roller.

8. The surface cleaning apparatus of claim 7, wherein, The upright body is configured to be in a state substantially parallel to the surface to be cleaned in the working state of the surface cleaning device.

9. The surface cleaning apparatus of claim 7, wherein, The roller is two, respectively installed on the left and right sides of the body.

10. The surface cleaning apparatus of claim 7, wherein, The roller motor is respectively installed on the roller, and the roller motor independently controls the roller.

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