Floor cleaning device

Abstract

The invention discloses ground cleaning equipment which comprises a machine body, a cleaning base located on the lower side of the machine body and capable of moving along the ground and a control device arranged on the machine body. The cleaning base comprises a base body, a rolling brush arranged on the front portion of the base body and capable of being driven to rotate around the axis of the rolling brush and a pair of moving wheels installed on the rear portion of the base body, and the moving wheels are distributed on the rear portion of the base body in a left-and-back mode. Each moving wheel is a Mecanum wheel and is provided with an independent servo driving motor, each servo driving motor is in signal connection with the control device, and the control device is configured to control the pair of servo driving motors to drive the pair of moving wheels to roll in opposite directions based on a leftward transverse movement instruction or a rightward transverse movement instruction.

Description

Technical Field

[0001] This application relates to the technical field of cleaning equipment, and particularly to floor cleaning equipment. Background Art

[0002] Floor cleaning equipment, such as floor scrubbers, push-type vacuum cleaners, etc., is configured with a body having a handle and a cleaning base capable of moving along the surface to be cleaned. A roller brush and a suction pipe that can contact the surface to be cleaned are provided on the cleaning base. During the floor cleaning by the floor cleaning equipment, the user holds the handle and pushes the cleaning base to move along the floor to be cleaned.

[0003] In traditional floor cleaning equipment, the movement configured on the cleaning base can only roll along the forward direction, so that the cleaning base can only move forward or backward, but cannot move laterally. This makes it very inconvenient and laborious for the user to use this equipment. Summary of the Invention

[0004] To solve the above technical problems, the purpose of this application is to provide a floor cleaning equipment that facilitates the user to operate the cleaning base to move laterally.

[0005] To achieve the above purpose, this application provides a floor cleaning equipment, including a body, a cleaning base located under the body and capable of moving along the ground, and a control device arranged on the body. The cleaning base includes a base body, a roller brush arranged at the front of the base body and capable of being driven to rotate around its own axis, and a pair of moving wheels installed at the rear of the base body. The pair of moving wheels are distributed one on the left and one on the right at the rear of the base body; each of the moving wheels is a Mecanum wheel and is respectively configured with an independent servo drive motor, and each of the servo drive motors is signal-connected to the control device. The control device is configured to control the pair of servo drive motors to drive the pair of moving wheels to roll in opposite directions based on a left lateral movement instruction or a right lateral movement instruction.

[0006] In the above technical solution, preferably, the left lateral movement instruction and the right lateral movement instruction come from one or more input elements.

[0007] In the above technical solution, preferably, the body includes a handle located at the upper part, and the one or more input elements are arranged at the handle.

[0008] In the above technical solution, preferably, the one or more input elements are mechanical input elements.

[0009] In the above technical solution, preferably, the pair of moving wheels are symmetrically distributed left and right with the longitudinal center line of the cleaning base as the center.

[0010] In the above technical solution, preferably, each of the Mecanum wheels includes a large wheel that rotates around a horizontal axis line extending in the left-right direction, and a plurality of small rollers distributed on the outer circumferential surface of the large wheel. Each small roller is configured to be able to freely rotate around its own axis line. The outer contour lines of the plurality of small rollers coincide with the outer circumferential surface of the large wheel, and the own axis line of each small roller forms a 45° angle with the horizontal axis line.

[0011] In the above technical solution, preferably, the cleaning base further includes a roller brush cover assembly, and the roller brush cover assembly is detachably mounted on the front part of the seat body. The roller brush cover assembly and the front part of the seat body jointly define a roller brush cavity with a lower opening, and the roller brush is installed in the roller brush cavity.

[0012] In the above technical solution, preferably, a clean water tank, a sewage tank, and a suction motor are provided on the machine body, a suction pipeline communicating with the roller brush cavity is provided on the seat body, and the suction pipeline communicates with the sewage tank.

[0013] In the above technical solution, preferably, a pair of passive wheels are further provided at the bottom of the seat body. The pair of passive wheels are located at the rear side of the lower opening and are distributed one on the left and one on the right. The wheel spacing between the pair of passive wheels is greater than the wheel spacing between the pair of drive wheels.

[0014] In the above technical solution, preferably, the seat body has a pair of left-right opposite side wall portions, and each of the moving wheels is located inside the corresponding side wall portion.

[0015] In this application, by adopting Mecanum wheel structures for the moving wheels of the cleaning base and configuring an independent servo drive motor for each moving wheel, each moving wheel can be independently driven. By controlling the rolling directions of the respective moving wheels, the cleaning base can be easily moved horizontally left or right on the ground to be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a floor cleaning device provided by an embodiment of this application; Figure 2 is a schematic structural diagram of a cleaning base provided by an embodiment of this application; Figure 3 is Figure 2 a top view schematic diagram of the cleaning base in Figure 4 is Figure 2 a bottom view schematic diagram of the cleaning base in Figure 5 is Figure 3 a cross-sectional schematic diagram taken along the A-A direction in Figure 6 is Figure 3 a schematic cross-sectional view along the B-B direction in Figure 7 a schematic diagram of the rolling directions of a pair of moving wheels when a cleaning base provided by an embodiment of the present application moves horizontally to the right; Figure 8 a schematic diagram of a cleaning path when a cleaning base provided by an embodiment of the present application encounters a wall; Figure 9 a schematic diagram of a zigzag cleaning path when a traditional cleaning base encounters a wall. Detailed Description of the Invention

[0017] To describe in detail the technical content, structural features, achieved objectives and effects of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0018] In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the present application. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the concept of the present application, the specific shapes, structures and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment.

[0019] Refer to Figure 1 , which shows a floor cleaning device 100 in a preferred embodiment of the present application. The floor cleaning device 100 includes a body 1 and a cleaning base 2. The lower part of the body 1 is rotatably coupled to the cleaning base 2. The floor cleaning device 100 can be used for cleaning surfaces such as short-pile carpets and hard floors.

[0020] The body 1 includes a housing 11, a handle 12 located on the upper side of the housing 11, a water tank 13 and a sewage tank 14 detachably installed on the front side of the housing 11, and a suction motor assembly (not shown in the figure) fluidly connected to the sewage tank 14. The cleaning liquid supplied in the water tank 13 can be either clean water or a disinfectant solution configured at an appropriate concentration, etc., and the present application does not limit this. A control device 12 is also provided in the housing 11. The control device 12 is signal-connected to each controlled component of the floor cleaning device 100 to control its operation.

[0021] As Figure 2 and Figure 3 shown, the cleaning base 2 includes a base body 21, a rotary brush 22, a rotary brush upper cover 23, and a rotary joint 25. As Figure 6As shown, the upper cover 23 of the rotary brush is installed at the front of the base body 21. The front part of the base body 21 and the upper cover 23 of the rotary brush define a rotary brush cavity 24 with a lower opening 241. The rotary brush 22 is placed in the rotary brush cavity 24 and can be driven by a rotary brush motor (not shown in the figure) to rotate around its own axis. A suction pipeline (not shown in the figure) is also provided in the base body 21 at the rear side of the rotary brush cavity 24, and this suction pipeline is in fluid communication with the waste liquid recovery tank 14 on the body 1. The lower part of the housing 11 is engaged with the rotary joint 25.

[0022] As Figure 2 As shown, a pair of moving wheels 4 are provided at the rear part of the base body 21. The base body 21 has a left side wall 211 and a right side wall 212, and each moving wheel 4 is located inside the left side wall 211 and the right side wall 212.

[0023] As Figure 3 As shown, a pair of moving wheels 4 are symmetrically distributed left and right with the longitudinal center line L of the cleaning base 2 as the center. Each moving wheel 4 is a Mecanum wheel and is respectively equipped with an independent servo drive motor 6. Each moving wheel 4 includes a large wheel 41 that rotates around a horizontal axis X extending in the left-right direction and a plurality of small rollers 42 distributed on the outer circumferential surface of the large wheel 41. Each small roller 42 is configured to be able to freely rotate around its own axis Y. The outer contour lines of the plurality of small rollers 42 coincide with the outer circumferential surface of the large wheel 41. The own axis Y of each small roller 42 forms an angle α of 45° with the horizontal axis X.

[0024] As Figure 4 As shown, a pair of passive wheels 5 are provided at the lower part of the base body 21. The pair of passive wheels 5 are located at the rear side of the lower opening 241. The wheel spacing of the pair of passive wheels 5 is greater than the wheel spacing of the pair of moving wheels 4.

[0025] As Figure 5 As shown, each moving wheel 4 is equipped with an independent servo drive motor 6. Each servo drive motor 6 can drive the corresponding moving wheel 4 to rotate at a set speed and in a set rotation direction. In this way, with the cooperation of the pair of moving wheels 4 and the pair of servo drive motors 6, the cleaning base 2 can move forward or backward longitudinally, or move left or right laterally. Compared with traditional moving wheels, it has higher mobility and is very suitable for moving in areas such as when encountering walls.

[0026] In this example, the pair of servo drive motors 6 are signal-connected to the control device 7 on the body 1. The control device 7 is configured to control the pair of servo drive motors 6 to drive the pair of moving wheels 4 to roll in opposite directions based on a right lateral movement instruction or a left lateral movement instruction. As Figure 7As shown, when the control device 7 controls a pair of servo drive motors 6 based on an instruction for moving horizontally to the right to drive a pair of moving wheels 4 to rotate in opposite directions, the servo drive motors 6 respectively control the moving wheels 4 on the left side to roll backward, while controlling the moving wheels 4 on the right side to roll forward; similarly, as Figure 8 shown, if the control device 7 controls a pair of servo drive motors 6 to drive a pair of moving wheels 4 to rotate in opposite directions according to a left horizontal movement control, the servo drive motors 6 respectively control the moving wheels 4 on the left side to roll forward, while controlling the moving wheels 4 on the right side to roll backward.

[0027] Continuing as Figure 1 shown, the handle 11 of the present application may further be provided with an input element 8, which is configured to be operable by a user to send an instruction for turning left or right to the control device 7; the input element 8 is preferably a mechanical input element, such as a pressing element, a trigger element, a sliding button element, etc. Of course, in other embodiments, the input element 8 may also be an electronic input element, such as a touch button, etc.

[0028] As Figure 8 shown, the cleaning base 2 of the present application, under the operation of the user, can move along the ground according to the movement trajectory in the figure. If it encounters a wall 200, it changes from moving longitudinally forward to moving horizontally to the right, and then moves longitudinally backward, then changes to moving horizontally to the right, and then moves longitudinally forward, cycling in turn until the ground area adjacent to the front 200 is cleaned. And as Figure 9 shown, when the traditional cleaning base 2' encounters a wall, it needs to move according to a Z-shaped movement trajectory, and before encountering the wall 200, it needs to reserve a turning space so that the cleaning base 2' can continue to move longitudinally forward after turning around. Therefore, the cleaning base 2 of the present application, compared with the traditional cleaning base 2' as Figure 9 shown, has a higher cleaning efficiency.

[0029] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements. The scope of protection required by the present application is defined by the appended claims, the specification and their equivalents.

Claims

1. A floor cleaning device, comprising a body, a cleaning base located at the lower side of the body and capable of moving along the ground, and a control device arranged on the body, wherein the cleaning base comprises a base, a roller brush arranged at the front of the base and capable of being driven to rotate around its own axis, and a pair of moving wheels installed at the rear of the base, wherein the pair of moving wheels are distributed at the rear of the base, one on the left and one on the rear; characterized in that: Each of the moving wheels is a Mecanum wheel and is respectively equipped with an independent servo drive motor. Each of the servo drive motors is connected to the control device by signal. The control device is configured to control a pair of the servo drive motors to drive the pair of moving wheels to roll in opposite directions based on a left lateral movement instruction or a right lateral movement instruction.

2. The floor cleaning device according to claim 1, characterized in that: The left lateral movement instruction and the right lateral movement instruction come from one or more input elements.

3. The floor cleaning device according to claim 2, characterized in that: The body comprises a handle at the upper portion, and the one or more input elements are arranged at the handle.

4. The floor cleaning device according to claim 2 or 3, characterized in that: The one or more input elements are mechanical input elements.

5. The floor cleaning device according to claim 1, characterized in that: The pair of moving wheels are symmetrically distributed left and right with the longitudinal center line of the cleaning base as the center.

6. The floor cleaning device according to claim 1, characterized in that: Each of the Mecanum wheels comprises a large wheel rotating around a horizontal axis extending in the left-right direction and a plurality of small rollers distributed on the outer circumferential surface of the large wheel, each of the small rollers being configured to rotate freely around its own axis, the outer contours of the plurality of small rollers coincide with the outer circumferential surface of the large wheel, and the axis of each of the small rollers is at an angle of 45° to the horizontal axis.

7. The floor cleaning device according to claim 1, characterized in that: The cleaning base also includes a roller brush cover assembly, which is detachably attached to the front of the base body. The roller brush cover assembly and the front of the base body jointly define a roller brush cavity with a lower opening, and the roller brush is installed in the roller brush cavity.

8. The floor cleaning device according to claim 7, characterized in that: The machine body is provided with a clean water tank, a sewage tank and a suction motor, the seat body is provided with a suction pipe connected with the roller brush cavity, and the suction pipe is connected with the sewage tank.

9. The floor cleaning device according to claim 7, characterized in that: A pair of passive wheels is also provided at the bottom of the seat body. The pair of passive wheels are located at the rear side of the lower opening and are distributed on the left and the right. The wheel spacing between the pair of passive wheels is greater than the wheel spacing between the pair of driving wheels.

10. The floor cleaning device according to claim 1, characterized in that: The seat body has a pair of side wall portions opposite to each other on the left and right sides, and each of the moving wheels is located on the inner side of the side wall portion on the corresponding side.

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