Cleaning device and cleaning system

Abstract

The utility model belongs to the technical field of electrical equipment, and particularly relates to cleaning equipment and a cleaning system.The cleaning equipment comprises a main machine, a water tank and two driving wheels, and the two driving wheels are oppositely arranged on the two sides of the advancing direction of the bottom of the main machine; the water tank is arranged in the main machine, and at least part of the vertical projection of the water tank falls on the rotating axis of the driving wheel. According to the cleaning equipment, at least part of the vertical projection of the water tank falls on the rotation axis of the driving wheel, in the operation process of the cleaning equipment, when the water amount of the water tank is decreased, balance of the cleaning equipment cannot be affected, and normal operation of the cleaning equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of electrical appliances, and particularly relates to a cleaning device and a cleaning system. BACKGROUND

[0002] The cleaning device is a common intelligent cleaning electrical appliance, such as a robot vacuum cleaner, an automatic sweeper, etc.

[0003] In the related art, a counterweight is arranged at the tail of the cleaning device to ensure the balance of the cleaning device during operation, but the scheme of adding the counterweight belongs to static configuration. During the operation of the cleaning device, the weight of the water tank of the cleaning device is constantly changing, which affects the configuration of the device, and then causes the center of gravity of the device to constantly change, thereby affecting the operation of the device. SUMMARY

[0004] The present disclosure provides a cleaning device and a cleaning system, which aims to at least partially avoid the change of the center of gravity of the cleaning device and ensure the normal operation of the device.

[0005] In a first aspect of the present disclosure, a cleaning device is provided, which comprises: a main machine; two driving wheels, which are oppositely arranged on both sides of the running direction of the bottom of the main machine; and a water tank, which is arranged in the main machine, and at least part of the vertical projection of the water tank falls on the rotation axis of the driving wheel.

[0006] The cleaning device provided in the present disclosure ensures the normal operation of the cleaning device, because at least part of the vertical projection of the water tank falls on the rotation axis of the driving wheel, and the balance of the cleaning device is not affected when the water amount of the water tank decreases during the operation of the cleaning device.

[0007] In some embodiments, the water tank is arranged between the two driving wheels.

[0008] In some embodiments, the water tank is arranged close to one of the driving wheels.

[0009] In some embodiments, the water tank is arranged in the central region between the two driving wheels.

[0010] In some embodiments, the center of gravity of the water tank falls on the rotation axis of the driving wheel.

[0011] In some embodiments, the cleaning device further comprises a universal wheel, and the center of gravity of the water tank falls in the triangular region formed by the universal wheel and the driving wheel.

[0012] In some embodiments, the triangular region is formed by the universal wheel, the grounding point of the driving wheel, and the top point of the triangle.

[0013] In some embodiments, the cleaning device further comprises: a cleaning module connected to the main body; and a communicating device connected in the main body, wherein an inlet of the communicating device is fluidly connected to the water tank, and an outlet of the communicating device is fluidly connected to the cleaning module.

[0014] In some embodiments, the water tank is further connected to an overflow pipeline and a water supplement pipeline, and the overflow pipeline, the water supplement pipeline and the communicating device are arranged on the same side of the water tank.

[0015] In some embodiments, the cleaning device further comprises: a supporting element arranged at the rear of the main body, at least a part of the supporting element protruding from the bottom surface of the main body; and wherein when the front of the main body is lifted, at least a part of the supporting element contacts the ground first.

[0016] In some embodiments, the cleaning device further comprises: a cleaning unit arranged at the bottom surface of the rear of the main body, the cleaning unit having an avoiding space, and at least a part of the supporting element is arranged in the avoiding space.

[0017] In the second aspect of the present application, the present application further provides a cleaning system comprising the base station and the cleaning device used in cooperation.

[0018] The cleaning system provided by the present disclosure can ensure normal operation of the cleaning device without affecting the balance of the cleaning device due to the decrease of the water amount in the water tank during operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0020] Figure 1 and Figure 2 The state schematic diagrams of the cleaning device in different postures are shown;

[0021] Figure 3 The structural schematic diagram of a supporting element is shown;

[0022] Figure 4 The structural schematic diagram of another supporting element is shown;

[0023] Figure 5 The bottom view schematic diagram of the cleaning device is shown;

[0024] Figure 6A schematic diagram of the arrangement of a water tank in the related art on a cleaning device is shown.

[0025] Figure 7 A schematic diagram of the arrangement of a water tank of the present disclosure on a cleaning device is shown.

[0026] Figure 8 A schematic diagram of the water path of the water tank in Figure 7 is shown.

[0027] Explanation of reference signs:

[0028] Host-1;

[0029] Driving wheel-2, rotation axis-201;

[0030] Universal wheel-3;

[0031] Supporting element-4, flexible piece-401, supporting block-402, supporting wheel-403, supporting frame-404;

[0032] Cleaning unit-5;

[0033] Water tank-6, 601-overflow pipe, 602-water replenishing pipe;

[0034] Rolling brush assembly-7;

[0035] Dust collecting piece-8;

[0036] Communicating vessel-9;

[0037] Cleaning module-10;

[0038] Water replenishing pump-11. DETAILED DESCRIPTION

[0039] In order for those skilled in the art to which the present disclosure pertains to have a clearer understanding of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0040] Figure 1 and Figure 2 A schematic diagram of the state of the cleaning device in different postures is shown. In combination with Figure 1 and Figure 2The cleaning device includes a main machine, driving wheels 2 arranged at the bottom of the main machine, and universal wheels 3 for supporting the main machine 1. By controlling the driving wheels 2 and the universal wheels 3 to move, the cleaning device can move in all directions in the area to be cleaned. However, during the cleaning process, the cleaning device may be blocked by high obstacles such as doorsteps and steps, resulting in poor passability and poor obstacle crossing ability of the cleaning device, limiting the working range and operation reliability of the cleaning device.

[0041] The universal wheels 3 of the cleaning device in the related art can be controlled to extend and retract relative to the main machine 1 to adjust the angle of the main machine 1, thereby improving the passability and obstacle crossing ability of the cleaning device. However, this may cause the rear of the main machine 1 to be pressed down, and the rear of the main machine 1 to contact the floor to be cleaned, which may affect the operation of the cleaning device and may also damage the floor.

[0042] In combination with Figure 1 and Figure 2 , based on the above problems, the cleaning device of the present disclosure further includes a support element 4 arranged at the rear of the main machine 1, and at least part of the support element 4 protrudes from the bottom surface of the main machine 1; wherein when the front side of the main machine 1 is raised, at least part of the support element 4 contacts the bottom surface in priority to the main machine 1.

[0043] The cleaning device provided by the present disclosure has the support element 4 arranged at the rear of the main machine 1, and at least part of the support element 4 protrudes from the bottom surface of the main machine 1, so that when the front side of the main machine 1 is raised and the rear of the main machine 1 is pressed down, at least part of the support element 4 contacts the ground in priority to the main machine 1, thereby reducing the contact area between the rear of the main machine 1 and the ground and the friction between the rear of the main machine 1 and the ground, to a certain extent, to ensure the normal operation of the main machine 1, and also to reduce the damage to the floor on the ground, which has good practicability.

[0044] In combination with Figure 1 and Figure 2 , according to an embodiment of the present disclosure, the support element 4 is arranged at the bottom surface of the rear of the main machine 1. That is, the support element 4 protrudes downward from the bottom surface of the main machine 1, and when the front of the main machine 1 is raised and at least part of the support element 4 contacts the ground, the main machine 1 can still be prevented from contacting the ground in priority to the main machine 1. According to another embodiment of the present disclosure, the support element 4 can also be arranged at the rear side of the main machine 1, for example, a protruding structure is arranged at the rear side of the main machine 1, and the support element 4 is assembled on the protruding structure, as long as the support element 4 has a part protruding from the ground of the main machine 1.

[0045] According to an embodiment of the present application, at least part of the support element 4 is elastic, when the front side of the main machine 1 is lifted up and the rear part of the main machine 1 is pressed down, the support element 4 is in elastic contact with the ground, further reducing the damage to the floor on the ground.

[0046] As shown in Figure 3 , according to an embodiment of the present application, the support element 4 comprises flexible pieces 401, at least part of the flexible pieces 401 is elastic and has a certain hardness, at least part of the plurality of flexible pieces 401 protrudes from the bottom surface of the main machine 1, the flexible pieces 401 can be in contact with the ground, because the flexible pieces 401 have a certain hardness, it can ensure that there is a certain gap between the rear part of the main machine 1 and the ground, and under the condition of normal operation of the cleaning equipment, it can also reduce the contact area with the ground, thereby reducing the damage to the floor on the ground.

[0047] Figure 3 As shown in Figure 3 , according to an embodiment of the present application, the support element 4 further comprises a support block 402 fixedly assembled on the bottom surface of the rear part of the main machine 1, and the flexible pieces 401 are connected to the bottom of the support block 402. In specific implementation, the bottom surface of the rear part of the main machine 1 can be provided with a mounting groove, and the support block 402 of the support element 4 is embedded or / and bonded in the mounting groove, and the flexible pieces 401 can be multiple, the plurality of flexible pieces 401 can be in strip shape, and the plurality of flexible pieces 401 can be connected to the bottom of the support block 402 by bonding.

[0048] Figure 4 As shown in Figure 4 , according to another embodiment of the present application, the support element 4 further comprises a rotatable support wheel 403, at least part of the support wheel 403 protrudes from the bottom surface of the main machine 1, that is, the support wheel 403 is installed at the rear side position below the main machine 1 and is rotatable relative to the main machine 1, so that when the front side of the main machine 1 is lifted up and the rear part of the main machine 1 is pressed down, at least part of the support wheel 403 contacts the ground first, and the support wheel 403 and the ground are in rolling contact, which not only reduces the contact area between the rear part of the main machine 1 and the ground and reduces the damage to the floor on the ground, but also reduces the friction between the rear part of the main machine 1 and the ground, to a certain extent, to ensure that the main machine 1 can operate normally, thereby improving the smoothness of the cleaning equipment when it overcomes obstacles or walks.

[0049] As shown in Figure 4As shown, in an embodiment, the support element 4 further comprises a support frame 404, and the support wheel 403 is rotatably connected to the support frame 404 through a support shaft. In another embodiment, the bottom surface of the rear part of the main machine 1 can be provided with a mounting groove, and the support wheel 403 is rotatably connected to the mounting groove. At least part of the circumferential side of the support wheel 403 protrudes from the opening of the mounting groove, so that at least part of the support wheel 403 contacts the ground in priority to the main machine 1.

[0050] According to an embodiment of the present application, the outer diameter of the support element 4 is smaller than the gap between the bottom surface of the main machine 1 and the cleaning ground, so that the support element 4 does not contact the ground when the cleaning device runs on a flat road surface, thereby reducing the friction and the energy consumption of the cleaning device.

[0051] Figure 5 As shown, the cleaning device further comprises a cleaning unit 5, which can be a mop or the like. The cleaning unit 5 is arranged on the bottom surface of the rear part of the main machine 1. During the operation of the device, the cleaning unit 5 itself has a certain elasticity. When the rear part of the main machine 1 contacts the ground, the cleaning unit 5 can buffer the frictional collision between the ground and the rear part of the main machine 1, so as to reduce the damage to the floor on the ground to a certain extent. Therefore, when the cleaning unit 5 is assembled on the cleaning device, the support element 4 can not protrude from the bottom surface of the cleaning unit 5. When the cleaning unit 5 is not assembled on the cleaning device, at least part of the support element 4 is exposed, so as to buffer the frictional collision between the ground and the rear part of the main machine 1.

[0052] According to an embodiment of the present application, the cleaning unit 5 has a clearance space, and at least part of the support element 4 is arranged in the clearance space. Therefore, when the cleaning unit 5 is assembled on the cleaning device, at least part of the support element 4 is arranged in the clearance space, so that the support element 4 does not protrude from the bottom surface of the cleaning unit 5.

[0053] In specific implementation, the clearance space can be a through gap provided on the cleaning unit 5, or a groove provided on the top of the cleaning unit 5. When the cleaning unit 5 has a plurality of cleaning parts (for example, a plurality of mops), at least two adjacent cleaning parts have a gap, which can be configured as the clearance space.

[0054] During the process of the cleaning device crossing the obstacle, it is possible that the cleaning device is stuck by the obstacle. The reason is that, during the operation of the cleaning device, the water amount in the water tank 6 in the main machine 1 is continuously reduced, so that the center of gravity of the cleaning device is also changed at all times. The closer the water tank 6 is to the edge of the device, the more serious the change of the center of gravity. Figure 6 As shown, the water tank 6 is arranged on the bottom surface of the rear part of the main machine 1. Figure 6 As shown, the water tank 6 is arranged on the bottom surface of the rear part of the main machine 1.Figure 6 When the cleaning device is running on the flat road, the water tank 6 is full of water, and the weight of the water tank 6 is 100g. When the water tank 6 is empty, the weight of the water tank 6 is 10g. When the cleaning device crosses the front obstacle, the cleaning device can easily cross the obstacle in the full water state, but the cleaning device needs more force to cross the obstacle in the empty water state, and the obstacle crossing ability is reduced. That is, the cleaning device may be stuck by the obstacle during the obstacle crossing process.

[0055] In addition, even if the cleaning device is running on the flat road, the balance problem caused by the decrease of the water amount of the water tank 6 of the cleaning device will occur. In order to solve this problem, in the related art, a counterweight is arranged at the tail of the main machine 1 of the cleaning device to ensure the balance of the cleaning device. However, the scheme of adding the counterweight belongs to static configuration, which causes the center of gravity of the device to change all the time, affects the operation of the device, and also increases the cost.

[0056] Based on the above technical problems, the present disclosure provides a cleaning device which aims to at least partially avoid the change of the center of gravity of the cleaning device and ensure the normal operation of the device.

[0057] Figure 7 The arrangement of the water tank of the present disclosure in the cleaning device is shown. In combination with the above description Figure 7 The cleaning device includes a main machine 1, a driving wheel 2, and a water tank 6. The two driving wheels 2 are arranged on the two sides of the bottom of the main machine 1 in the running direction, and the driving wheel 2 can rotate relative to the main machine 1. The water tank 6 is arranged in the main machine 1, and at least part of the vertical projection of the water tank 6 falls on the rotation axis 201 of the driving wheel 2.

[0058] The cleaning device provided in the present disclosure is arranged in that at least part of the vertical projection of the water tank 6 falls on the rotation axis 201 of the driving wheel 2. When the water amount of the water tank 6 decreases during the operation of the cleaning device, the balance of the cleaning device will not be affected, and the normal operation of the cleaning device is ensured. In addition, the counterweight can be cancelled to reduce the cost to a certain extent.

[0059] In combination with the above description Figure 7 In an embodiment, the water tank 6 is arranged between the two driving wheels 2, and the water tank 6 can be close to one of the driving wheels 2, that is, the water tank 6 can be arranged on any one side between the two driving wheels 2 along the width direction of the main machine 1. In another embodiment, the water tank 6 can also be arranged in the central region between the two driving wheels 2.

[0060] In combination with the above description Figure 7In an embodiment, the gravity center of the water tank 6 is on the rotation axis 201 of the driving wheel 2, i.e. the gravity center of the water tank 6 and the rotation axis 201 of the driving wheel 2 are on the same vertical plane. In this way, the gravity center of the cleaning device can be best controlled, so that the cleaning device can run well in both the walking posture and the obstacle crossing posture. In another embodiment, the gravity center of the water tank 6 can also have a certain offset from the rotation axis 201 of the driving wheel 2, i.e. the gravity center of the water tank 6 is on the outside of the vertical plane where the rotation axis 201 of the driving wheel 2 is located. In this way, the gravity center of the cleaning device can also be controlled to a certain extent, so that the cleaning device can run well in both the walking posture and the obstacle crossing posture. For example, the gravity center of the water tank 6 is in the triangular area formed by the universal wheel 3 and the two driving wheels 2, and the three vertices of the triangle are formed by the contact points of the universal wheel and the two driving wheels.

[0061] In combination Figure 7 In specific implementation, the water tank 6 can be arranged close to one driving wheel 2 and above one end of the rolling brush assembly 7, and adjacent to the dust collecting member 8 in the main machine 1.

[0062] Figure 8 The water tank is shown in Figure 7 In combination Figure 5 and Figure 8 The cleaning device further comprises a cleaning module 10, which is at least one of a vibration module or an edge mop module, and the cleaning module 10 is connected to the bottom of the rear part of the main machine 1. The water tank 6 is connected to the cleaning module 10 through a communicating device 9 to provide water source for the cleaning module. Specifically, the communicating device 9 is a three-way pipe, and the communicating device 9 is connected in the main machine 1. One water inlet of the communicating device 9 is in fluid connection with the water tank 6, one water outlet of the communicating device 9 is in fluid connection with one cleaning module 10, and the other water outlet of the communicating device 9 is in fluid connection with the other cleaning module 10 through a water supplementing pump 11.

[0063] In combination with FIG. 2 and FIG. 3, the water tank 6 is further connected with an overflow pipe 601 and a water supplementing pipe. The overflow pipe 601, the water supplementing pipe 602 and the communicating device 9 are arranged on the same side of the water tank 6, i.e. on the side of the water tank 6 facing the tail part of the main machine 1, so as to save the pipe arrangement and reasonably utilize the internal space of the main machine 1. In addition, the overflow pipe 601 and the water supplementing pipe 602 are connected above the side part of the water tank 6, and the pipe connected with the communicating device 9 is arranged below the side part of the water tank 6. Through the above pipe arrangement, the present disclosure can simultaneously accommodate the delivery of water source for overflow, vibration module and edge mop module, and ensure the normal operation of the device.

[0064] It should be noted that the above arrangement of the water tank 6 is not only applicable to the cleaning device with the driving wheel 2 group having the lifting function, but also applicable to other types of cleaning devices, which are not limited by the present disclosure.

[0065] Based on the same design idea, the disclosure also provides a cleaning system, which comprises a base station and the cleaning device described above used in cooperation. The obstacle crossing ability and passing performance of the cleaning device of the cleaning system are improved, and the balance of the cleaning device is ensured during the operation of the cleaning device, so that the cleaning device can operate normally and the user experience is improved.

[0066] In the disclosure, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0067] In the description of the disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the disclosure.

[0068] In the disclosure, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0069] In addition, in the disclosure, the description related to "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the disclosure, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0070] Although embodiments of the disclosure have been shown and described, it will be apparent to those having ordinary skill in the art that a number of changes, modifications, alternatives, and variations can be made to the embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning apparatus, characterized by, The cleaning device comprises: a main body; two driving wheels, arranged oppositely on both sides of the traveling direction of the bottom of the main body; a water tank, at least part of the vertical projection of which falls on the rotation axis of the driving wheels.

2. The cleaning apparatus of claim 1, wherein, The water tank is arranged between the two driving wheels.

3. The cleaning apparatus of claim 2, wherein, The water tank is close to one of the driving wheels.

4. The cleaning apparatus of claim 2, wherein, The water tank is arranged in the central region between the two driving wheels.

5. The cleaning apparatus of claim 1, wherein, The center of gravity of the water tank falls on the rotation axis of the driving wheels.

6. The cleaning apparatus of any one of claims 1-5, wherein, The cleaning device further comprises: a cleaning module, connected to the main body; a communicating device, connected in the main body, the water inlet of the communicating device is fluidly connected with the water tank, and the water outlet of the communicating device is fluidly connected with the cleaning module.

7. The cleaning apparatus of claim 6, wherein, The water tank is further connected with an overflow pipeline and a water supplement pipeline, the overflow pipeline, the water supplement pipeline and the communicating device are arranged on the same side of the water tank.

8. The cleaning apparatus of any one of claims 1-5 and 7, wherein, The cleaning device further comprises: a supporting element, arranged at the rear of the main body, at least part of the supporting element protrudes from the bottom surface of the main body; when the front of the main body is lifted, at least part of the supporting element contacts the ground in priority to the main body.

9. The cleaning apparatus of claim 8, wherein, The cleaning device further comprises: a cleaning unit, arranged on the bottom surface of the rear of the main body, the cleaning unit has a avoiding space, and at least part of the supporting element is arranged in the avoiding space.

10. The cleaning apparatus of claim 1, wherein, Further comprising a universal wheel, the center of gravity of the water tank falls in the triangular region formed by the universal wheel and the driving wheels.

11. The cleaning apparatus of claim 10, wherein, The triangular region is formed by the universal wheel and the grounding points of the driving wheels as the vertices of the triangle.

12. A cleaning system characterized by, The cleaning system comprises a base station and the cleaning device according to any one of claims 1-9 used in cooperation.

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