Cleaning device

Abstract

The utility model discloses a cleaning device. The cleaning device comprises a body, a cleaning assembly and an external expansion maintaining assembly. Wherein the cleaning assembly is movably arranged at the bottom of the main body, and the cleaning assembly is provided with a first position which expands outwards to protrude out of the outer side edge of the main body and a second position which is folded on the inner side of the main body. The external expansion maintaining assembly is arranged between the cleaning assembly and the main body and used for applying external force to the cleaning assembly so that the cleaning assembly can be located at the first position in the initial state. The cleaning device solves the problem that a cleaning device in the prior art is poor in cleaning effect.

Description

Technical Field

[0001] The present application relates to the technical field of floor cleaning, and in particular to a cleaning device. Background Art

[0002] Cleaning devices include sweeping robots, floor scrubbers, and cleaning base stations. However, the cleaning devices on the market have poor cleaning effects along edges, that is, the cleaning effects of the cleaning devices are poor in corners such as wall corners, making it difficult to meet the needs of users. Utility Model Content

[0003] The main purpose of the present application is to provide a cleaning device to at least solve the problem of poor cleaning effect of cleaning devices in the prior art.

[0004] According to one aspect of the present application, there is provided a cleaning device comprising:

[0005] main body;

[0006] a cleaning assembly movably disposed at the bottom of the main body, wherein the cleaning assembly has a first position in which the cleaning assembly is expanded outward to protrude beyond the outer edge of the main body and a second position in which the cleaning assembly is retracted into the inner side of the main body;

[0007] An outward expansion maintaining component is arranged between the cleaning component and the main body to apply external force to the cleaning component so that the cleaning component is in the first position in an initial state.

[0008] Furthermore, the outward expansion maintaining component includes:

[0009] a sliding component, the sliding component being arranged between the cleaning assembly and the main body;

[0010] an elastic contraction portion, the elastic contraction portion being provided on the sliding component and applying elastic force to the sliding component;

[0011] In which, in the initial state, the sliding component moves along the first direction due to the elastic force applied by the elastic contraction part so that the cleaning component is in the first position; when the sliding component is hit by an external force and overcomes the elastic force applied by the elastic contraction part on the sliding component, the sliding component slides in a direction opposite to the first direction and drives the cleaning component to switch from the first position to the second position.

[0012] Furthermore, the sliding component includes:

[0013] a support base connected to the main body, wherein a slide rail is provided at the bottom of the support base and extends along the first direction;

[0014] A slider is connected to the cleaning component, and a sliding groove adapted to the slide rail is provided on the slider, and the slider is slidably arranged on the slide rail through the sliding groove.

[0015] Furthermore, the slider is provided with a first limiting portion, and the support seat is provided with a second limiting portion;

[0016] The elastic contraction portion includes a spring, the spring extends along the first direction, one end of the spring is fixed on the first limiting portion, and the other end of the spring is fixed on the second limiting portion.

[0017] Furthermore, the first limiting portion and / or the second limiting portion includes at least one of a limiting protrusion, a limiting column and a limiting groove.

[0018] Furthermore, the cleaning device further comprises a driving assembly, which is arranged on the main body and drives the cleaning assembly to rise and fall along the height direction of the cleaning device. The outward expansion maintaining assembly and the driving assembly work independently of each other.

[0019] Furthermore, the driving assembly includes:

[0020] a driving portion, the driving portion being disposed on the main body;

[0021] a stretching member, one end of which is connected to the driving unit, and the other end of which is inserted into the outward expansion maintaining assembly, wherein the driving unit drives the stretching member so that the outward expansion maintaining assembly drives the cleaning assembly to move up and down along the height direction of the cleaning device;

[0022] A lifting buffer portion is provided between the outward expansion maintaining component and the main body.

[0023] Furthermore, the lifting buffer portion includes:

[0024] a fixing plate, the fixing plate being fixed on the main body;

[0025] a transmission rod, wherein a first end of the transmission rod is rotatably connected to the fixing plate, and a second end of the transmission rod is connected to the outward expansion maintaining assembly;

[0026] A torsion spring is sleeved on the first end of the transmission rod, the first end of the torsion spring abuts against the fixing plate, and the second end of the torsion spring abuts against the transmission rod.

[0027] Furthermore, the transmission rod includes a first transmission rod and a second transmission rod spaced apart along the height direction of the cleaning device, the first ends of the first transmission rod and the second transmission rod are rotatably connected to the fixed plate, the second ends of the first transmission rod and the second transmission rod are both connected to the outward expansion maintaining assembly, the torsion spring is sleeved on the first end of the first transmission rod, and the second end of the torsion spring passes through the first transmission rod and presses against the second transmission rod.

[0028] Furthermore, the lifting buffer portion further includes a stop plate, the stop plate is connected to the fixing plate, and the stop plate is located at the top of the outward expansion maintaining assembly.

[0029] Compared to the prior art, the "initial state" in this application refers to the state in which the cleaning assembly, when cleaning the floor, does not come into contact with an obstacle, causing the cleaning assembly to retract to the second position. That is, when the cleaning assembly does not come into contact with an obstacle, the expansion assembly applies an external force to the cleaning assembly, causing it to expand outward to the first position, protruding from the outer edge of the main body, thereby facilitating the cleaning assembly's ability to clean corners and thereby improving the cleaning effect of the cleaning device. When the cleaning assembly comes into contact with an obstacle, and the force exerted by the obstacle on the cleaning assembly is greater than the force exerted by the expansion maintenance assembly on the cleaning assembly, the cleaning assembly moves from the first position to the second position, retracted inside the main body, thereby preventing the obstacle from damaging the cleaning assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0031] Figure 1 This is a schematic structural diagram of the cleaning device disclosed in this application;

[0032] Figure 2 This is a partial structural schematic diagram of the cleaning device disclosed in this application from a first viewing angle (with part of the main body removed);

[0033] Figure 3 for Figure 2 Enlarged schematic diagram of area I in the middle;

[0034] Figure 4 This is a partial structural schematic diagram of the cleaning device disclosed in this application at a second viewing angle (with part of the main body removed);

[0035] Figure 5 This is a schematic diagram of a portion of the structure of the cleaning device disclosed in this application from a third viewing angle (part of the main body, support seat and spring removed);

[0036] Figure 6 for Figure 5 Enlarged schematic diagram of the middle II area.

[0037] The above drawings include the following reference numerals:

[0038] 10. Main body; 20. Cleaning component; 30. Outward expansion maintaining component; 31. Sliding component; 32. Elastic contraction part; 40. Driving component; 41. Driving part; 42. Stretching member; 43. Lifting buffer part; 311. Support seat; 312. Sliding block; 321. Spring; 421. Pull rope; 431. Fixing plate; 432. Transmission rod; 433. Torsion spring; 434. Stop plate; 3111. Slide rail; 3112. Second limiting part; 3121. Slide groove; 3211. First limiting part; 4321. First transmission rod; 4322. Second transmission rod. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0042] See also Figures 1 to 6 As shown, according to an embodiment of the present application, a cleaning device is provided, which includes a main body 10, a cleaning component 20 and an outward expansion maintaining component 30.

[0043] The cleaning assembly 20 is movably disposed at the bottom of the main body 10 and has a first position in which it expands outward to protrude beyond the outer edge of the main body 10 and a second position in which it is retracted into the inner side of the main body 10. An expansion maintaining assembly 30 is disposed between the cleaning assembly 20 and the main body 10 to apply an external force to the cleaning assembly 20 to initially maintain the cleaning assembly 20 in the first position.

[0044] Specifically, in this embodiment, the "initial state" refers to the state in which the cleaning assembly 20 does not come into contact with an obstacle when the cleaning device is cleaning the floor, causing the cleaning assembly 20 to retract to the second position; that is, when the cleaning assembly 20 does not come into contact with an obstacle, the expansion assembly applies an external force to the cleaning assembly 20, causing the cleaning assembly 20 to expand outward to the first position protruding from the outer edge of the main body 10, thereby facilitating the cleaning assembly 20 to clean the corners of the wall, thereby improving the cleaning effect of the cleaning device. When the cleaning assembly 20 comes into contact with an obstacle, and the external force applied by the obstacle to the cleaning assembly 20 is greater than the external force applied by the expansion maintenance assembly 30 to the cleaning assembly 20, the cleaning assembly 20 moves from the first position to the second position retracted inside the main body 10, thereby preventing the obstacle from damaging the cleaning assembly 20. In this embodiment, the cleaning assembly 20 includes a support plate and a cleaning member. The support plate is used to fix the cleaning member, which can be a mop or a brush.

[0045] Furthermore, the outward expansion maintaining assembly 30 includes a sliding component 31 and an elastic contraction portion 32. The sliding component 31 is arranged between the cleaning component 20 and the main body 10; the elastic contraction portion 32 is arranged on the sliding component 31, and the elastic contraction portion 32 applies an elastic force to the sliding component 31; wherein, in the initial state, the sliding component 31 is subjected to the elastic force applied by the elastic contraction portion 32 along the first direction (such as the attached Figure 2 When the sliding member 31 is hit by an external force and overcomes the elastic force applied by the elastic contraction portion 32 to the sliding member 31, the sliding member 31 slides in a direction opposite to the first direction and drives the cleaning assembly 20 to switch from the first position to the second position.

[0046] Specifically, when the cleaning component 20 is not in contact with the obstacle, the elastic contraction part 32 applies an elastic force along the first direction to the cleaning component 20, thereby causing the sliding component 31 to move along the first direction, thereby driving the cleaning component 20 to move and remain in the first position; after the cleaning component 20 comes into contact with the obstacle, and the component of the external force applied by the obstacle on the cleaning component 20 in the direction opposite to the first direction is higher than the elastic force applied by the elastic contraction part 32 on the cleaning component 20, the sliding component 31 moves in the direction opposite to the first direction and causes the cleaning component 20 to move from the first position to the second position, thereby preventing the obstacle from applying too much external force on the cleaning component 20, thereby causing damage to the cleaning component 20.

[0047] As attached Figure 4 As shown, the sliding component 31 includes a support base 311 and a slider 312. The support base 311 is connected to the main body 10. A slide rail 3111 is provided at the bottom of the support base 311. The slide rail 3111 extends along a first direction. The slider 312 is connected to the cleaning assembly 20. The slider 312 is provided with a slide groove 3121 adapted to the slide rail 3111. The slider 312 is slidably disposed on the slide rail 3111 through the slide groove 3121.

[0048] Specifically, the support base 311 is fixed to the main body 10, and the slider 312 is fixedly connected to the cleaning assembly 20. The slider 312 can slide back and forth in a first direction relative to the support base 311. When the slider 312 slides back and forth in the first direction, the slider 312 can drive the cleaning assembly 20 to move in the first direction. The elastic contraction portion 32 is disposed between the support base 311 and the slider 312. The elastic contraction portion 32 applies an elastic force to the slider 312, causing the slider 312 to move in the first direction and drive the cleaning assembly 20 to move to the first position. When the cleaning assembly 20 is subjected to a significant external force that overcomes the elastic force applied by the elastic contraction portion 32 on the slider 312, the cleaning assembly 20 switches from the first position to the second position.

[0049] In this embodiment, to prevent the elastic contraction portion 32 from being subjected to excessive external force, which would cause the elastic contraction portion 32 to separate from the slider 312 or the support base 311 and ultimately prevent the cleaning assembly 20 from switching between the first position and the second position, a first limiting portion 3211 is provided on the slider 312 and a second limiting portion 3112 is provided on the support base 311. The elastic contraction portion 32 includes a spring 321 extending in a first direction, with one end of the spring 321 fixed to the first limiting portion 3211 and the other end of the spring 321 fixed to the second limiting portion 3112.

[0050] It can be understood that when the two ends of the spring 321 are respectively fixed on the first limiting portion 3211 and the second limiting portion 3112, the first limiting portion 3211 and the second limiting portion 3112 respectively exert a limiting effect on the two ends of the spring 321, thereby preventing the spring 321 from being overly compressed or overly stretched, resulting in the spring 321 being separated from the support seat 311 or the spring 321 being separated from the slider 312. On the other hand, since the elastic force applied by the spring 321 to the slider 312 is a nonlinear force, that is, after the cleaning assembly 20 moves in a direction opposite to the first direction, the elastic force applied by the spring 321 to the slider 312 increases. Therefore, the external force applied by the obstacle to the cleaning assembly 20 needs to overcome the maximum elastic force of the spring 321 before the cleaning assembly 20 can switch from the first position to the second position; it is worth mentioning that in this embodiment, since the spring 321 is provided between the slider 312 and the support seat 311, when the external force applied by the obstacle to the cleaning assembly 20 is greater than the elastic force applied by the spring 321 to the slider 312, the cleaning assembly 20 will move a certain distance in the direction opposite to the first direction. At this time, the spring 321 is compressed, and the elastic force applied by the spring 321 to the slider 312 increases, thereby causing the cleaning assembly 20 to stop moving after moving a certain distance. When the external force applied by the obstacle to the cleaning assembly 20 is eliminated, the cleaning assembly 20 moves to the first position driven by the slider 312. The structure of this embodiment can enable the cleaning assembly 20 to have the ability to avoid obstacles to a certain extent.

[0051] Furthermore, the first limiting portion 3211 and / or the second limiting portion 3112 includes at least one of a limiting protrusion, a limiting column and a limiting groove.

[0052] Specifically, “the first limiting portion 3211 and / or the second limiting portion 3112 includes at least one of a limiting protrusion, a limiting column and a limiting groove” means that the first limiting portion 3211 includes at least one of a limiting protrusion, a limiting column and a limiting groove, the second limiting portion 3112 includes at least one of a limiting protrusion, a limiting column and a limiting groove, or both the first limiting portion 3211 and the second limiting portion 3112 include at least one of a limiting protrusion, a limiting column and a limiting groove. In a specific embodiment, as shown in the attached Figure 3 As shown, the first limiting portion 3211 and the second limiting portion 3112 are both limiting protrusions.

[0053] Furthermore, the cleaning device further comprises a driving assembly 40, which is disposed on the main body 10 and drives the cleaning assembly 20 to move along the height direction of the cleaning device (such as the attached Figure 2 The lifting and lowering in the middle Z direction, the outward expansion maintaining assembly 30 and the driving assembly 40 work independently of each other.

[0054] It is understandable that the drive assembly 40 can drive the cleaning assembly 20 to rise and fall in the height direction of the cleaning device, so that after the cleaning device encounters an obstacle, the cleaning assembly 20 can be retracted to the main body 10, and the cleaning device can cross the obstacle. In addition, in this embodiment, the outward expansion maintenance assembly 30 and the drive assembly 40 work independently of each other, that is, the external force applied by the outward expansion maintenance assembly 30 to the cleaning assembly 20 does not affect the driving assembly 40 to make the cleaning assembly 20 rise and fall, that is to say, the cleaning assembly 20 can be raised and lowered in the first position, and can also be raised and lowered in the second position, thereby improving the scene adaptability of the cleaning device to a certain extent. Further, the drive assembly 40 includes a drive part 41 and a stretching member 42. The drive part 41 is arranged on the main body 10, one end of the stretching member 42 is connected to the drive part 41, and the other end of the stretching member 42 is passed through the outward expansion maintenance assembly 30. The drive part 41 drives the stretching member 42 so that the outward expansion maintenance assembly 30 drives the cleaning assembly 20 to rise and fall in the height direction of the cleaning device.

[0055] In this embodiment, the driving portion 41 is a motor, and the tensioning member 42 is a pull cord 421. One end of the pull cord 421 is sleeved on the motor, and the other end of the pull cord 421 is inserted into the support base 311. When the motor is started, one end of the pull cord 421 is wound around the motor, so that the other end of the pull cord 421 drives the support base 311 to rise in the height direction of the cleaning device. The rise of the support base 311 then drives the slider 312 and the cleaning assembly 20 to rise, that is, the cleaning assembly 20 is retracted onto the main body 10. When the motor stops working, the pull cord 421 is relaxed, and the support base 311, the slider 312, and the cleaning assembly 20 are lowered in the height direction of the cleaning device under the action of gravity, that is, the cleaning assembly 20 and the main body 10 move away from each other and contact the ground. In some embodiments, a monitoring component (not shown in the figure) is provided on the cleaning device. The monitoring component is used to monitor whether there is an obstacle in front of the cleaning device, and the monitoring component is electrically connected to the motor. When the monitoring component detects the existence of an obstacle in front of the cleaning device, the monitoring component sends a start signal to the motor, so that the cleaning component 20 is retracted onto the main body 10, and the cleaning component 20 does not interfere with the obstacle, so that the cleaning device can cross the obstacle; when the monitoring component does not detect the obstacle, the monitoring component sends a stop signal to the motor. After the motor stops, the cleaning component 20 and the main body 10 are separated from each other, so that the cleaning component 20 can directly contact the ground, and then clean the ground.

[0056] In some embodiments, as shown in the attached Figure 4 As shown, the sliding components 31 include two, and the two sliding components 31 are spaced apart along the first direction. The pull ropes 421 include two, and the two pull ropes 421 are respectively passed through the two support seats 311, and when the motor is started, the two pull ropes 421 simultaneously apply external force to the two support seats 311, so that various parts of the cleaning component 20 can rise smoothly.

[0057] To prevent the cleaning assembly 20 from colliding with the main body 10 during its ascent, the drive assembly 40 in this embodiment further includes a lift buffer 43 disposed between the outward expansion maintenance assembly 30 and the main body 10. Specifically, after the outward expansion maintenance assembly 30 has ascended a certain distance in the vertical direction, the lift buffer 43 applies an external force to the outward expansion maintenance assembly 30 in the opposite direction of the vertical direction, thereby preventing the outward expansion maintenance assembly 30 from colliding with the main body 10 after its ascent. Furthermore, in this embodiment, the greater the distance the outward expansion maintenance assembly 30 ascends, the greater the external force exerted by the lift buffer 43 on the outward expansion maintenance assembly 30.

[0058] Furthermore, the lifting buffer 43 includes a fixed plate 431, a transmission rod 432, and a torsion spring 433. The fixed plate 431 is fixed to the main body 10. The first end of the transmission rod 432 is rotatably connected to the fixed plate 431, and the second end of the transmission rod 432 is connected to the outward expansion maintenance assembly 30. The torsion spring 433 is mounted on the first end of the transmission rod 432, with the first end of the torsion spring 433 abutting the fixed plate 431 and the second end of the torsion spring 433 abutting the transmission rod 432.

[0059] Specifically, the second end of the transmission rod 432 is connected to the support seat 311. When the pull rope 421 drives the support seat 311 to rise in the height direction, the transmission rod 432 rotates, thereby compressing the torsion spring 433. After compression, the torsion spring 433 applies a certain external force to the transmission rod 432, and the transmission rod 432 transmits the external force to the support seat 311, thereby preventing the support seat 311 from moving too far in the height direction, thereby causing the support seat 311 to collide with the main body 10.

[0060] As attached Figure 6 As shown, the transmission rod 432 includes a first transmission rod 4321 and a second transmission rod 4322 arranged at intervals along the height direction of the cleaning device. The first ends of the first transmission rod 4321 and the second transmission rod 4322 are both rotatably connected to the fixed plate 431, and the second ends of the first transmission rod 4321 and the second transmission rod 4322 are both connected to the outward expansion maintaining assembly 30. The torsion spring 433 is sleeved on the first end of the first transmission rod 4321, and the second end of the torsion spring 433 passes through the first transmission rod 4321 and presses against the second transmission rod 4322.

[0061] Specifically, when the support seat 311 rises in the height direction, the first ends of the first transmission rod 4321 and the second transmission rod 4322 of the support seat 311 rotate. Since the second end of the torsion spring 433 passes through the first transmission rod 4321 and presses on the second transmission rod 4322, the first transmission rod 4321 and the second transmission rod 4322 rotate to compress the torsion spring 433. When the torsion spring 433 is compressed to a certain extent, the external force applied by the torsion spring 433 on the first transmission rod 4321 and the second transmission rod 4322 is higher than the external force applied by the support seat 311 on the first transmission rod 4321 and the second transmission rod 4322, the support seat 311 stops moving, thereby preventing the support seat 311 from interfering with or colliding with the main body 10. In addition, in this embodiment, since the support base 311 is relatively large in size, the force exerted on the transmission rod 432 when the support base 311 rises is relatively large. Therefore, in this embodiment, the first transmission rod 4321 and the second transmission rod 4322 are used to disperse the external force exerted by the support base 311, thereby preventing the first transmission rod 4321 and the second transmission rod 4322 from being damaged.

[0062] In addition, the lifting buffer portion 43 further includes a stop plate 434, which is connected to the fixing plate 431 and is located at the top of the outward expansion maintaining assembly 30. Specifically, the stop plate 434 is used to stop the support base 311, thereby preventing the support base 311 from interfering with or colliding with the main body 10. That is, when the external force applied to the support base 311 by the pull rope 421 is too large, the support base 311 overcomes the external force of the torsion spring 433, rises in the height direction, and abuts against the stop plate 434, thereby preventing the support base 311 from directly colliding with the main body 10 and causing damage to the main body 10 or the support base 311.

[0063] In summary, the cleaning device of the present application is provided with a drive assembly 40 and an outward expansion maintenance assembly 30 that work independently of each other. The outward expansion maintenance assembly 30 can place the cleaning assembly 20 in the first position, thereby improving the cleaning ability of the cleaning device along the edge; in addition, under the action of the outward expansion maintenance assembly 30 and the obstacle, the cleaning assembly 20 can move from the first position to the second position, so that the cleaning assembly 20 has a certain ability to avoid obstacles when cleaning the floor, thereby preventing the cleaning assembly 20 from rigidly colliding with the obstacle; in addition, the drive assembly 40 of the present application can work independently of the outward expansion maintenance assembly 30, so that the cleaning assembly 20 can rise or fall in the height direction of the cleaning device without being affected by the outward expansion maintenance assembly 30, thereby improving the scene adaptability of the cleaning device. On the other hand, the drive assembly 40 of the present application is provided with a lifting buffer 43. The lifting buffer 43 can stop the outward expansion maintenance assembly 30 from moving after the outward expansion maintenance assembly 30 is lifted to a certain distance, thereby preventing the outward expansion maintenance assembly 30 from colliding with the main body 10.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0066] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cleaning device, characterized in that: include: Subject (10); A cleaning assembly (20), the cleaning assembly (20) being movably disposed at the bottom of the main body (10), and the cleaning assembly (20) having a first position in which it is expanded outward to protrude from the outer edge of the main body (10) and a second position in which it is retracted into the inner side of the main body (10); An outward expansion maintaining component (30) is arranged between the cleaning component (20) and the main body (10) for applying an external force to the cleaning component (20) so that the cleaning component (20) is in the first position in an initial state.

2. The cleaning device according to claim 1, characterized in that The outward expansion maintaining component (30) comprises: a sliding component (31), the sliding component (31) being arranged between the cleaning assembly (20) and the main body (10); an elastic contraction portion (32), the elastic contraction portion (32) being provided on the sliding component (31), and the elastic contraction portion (32) applying elastic force to the sliding component (31); Wherein, in the initial state, the sliding component (31) is moved in a first direction by the elastic force applied by the elastic contraction part (32) so that the cleaning component (20) is in a first position; when the sliding component (31) is hit by an external force and overcomes the elastic force applied by the elastic contraction part (32) to the sliding component (31), the sliding component (31) slides in a direction opposite to the first direction and drives the cleaning component (20) to switch from the first position to the second position.

3. The cleaning device according to claim 2, characterized in that The sliding component (31) comprises: A support seat (311), the support seat (311) is connected to the main body (10), a slide rail (3111) is provided at the bottom of the support seat (311), and the slide rail (3111) extends along the first direction; A slider (312), the slider (312) is connected to the cleaning assembly (20), a slide groove (3121) adapted to the slide rail (3111) is provided on the slider (312), and the slider (312) is slidably arranged on the slide rail (3111) through the slide groove (3121).

4. The cleaning device according to claim 3, characterized in that The slider (312) is provided with a first limiting portion (3211), and the support seat (311) is provided with a second limiting portion (3112); The elastic contraction portion (32) comprises a spring (321), the spring (321) extends along the first direction, one end of the spring (321) is fixed on the first limiting portion (3211), and the other end of the spring (321) is fixed on the second limiting portion (3112).

5. The cleaning device according to claim 4, characterized in that The first limiting portion (3211) and / or the second limiting portion (3112) includes at least one of a limiting protrusion, a limiting column and a limiting groove.

6. The cleaning device according to any one of claims 1 to 5, characterized in that The cleaning device further comprises a driving assembly (40), wherein the driving assembly (40) is arranged on the main body (10), and the driving assembly (40) drives the cleaning assembly (20) to rise and fall along the height direction of the cleaning device, and the outward expansion maintaining assembly (30) and the driving assembly (40) work independently of each other.

7. The cleaning device according to claim 6, characterized in that The drive assembly (40) comprises: a driving portion (41), wherein the driving portion (41) is provided on the main body (10); a stretching member (42), one end of the stretching member (42) being connected to the driving portion (41), and the other end of the stretching member (42) being inserted into the outward expansion maintaining assembly (30), and the driving portion (41) driving the stretching member (42) so that the outward expansion maintaining assembly (30) drives the cleaning assembly (20) to move up and down along the height direction of the cleaning device; A lifting buffer portion (43) is provided between the outward expansion maintaining component (30) and the main body (10).

8. The cleaning device according to claim 7, characterized in that The lifting buffer portion (43) includes: a fixing plate (431), wherein the fixing plate (431) is fixed on the main body (10); a transmission rod (432), wherein a first end of the transmission rod (432) is rotatably connected to the fixing plate (431), and a second end of the transmission rod (432) is connected to the outward expansion maintaining assembly (30); A torsion spring (433), wherein the torsion spring (433) is sleeved on the first end of the transmission rod (432), the first end of the torsion spring (433) abuts against the fixing plate (431), and the second end of the torsion spring (433) abuts against the transmission rod (432).

9. The cleaning device according to claim 8, characterized in that The transmission rod (432) includes a first transmission rod (4321) and a second transmission rod (4322) which are spaced apart along the height direction of the cleaning device. The first ends of the first transmission rod (4321) and the second transmission rod (4322) are both rotatably connected to the fixed plate (431). The second ends of the first transmission rod (4321) and the second transmission rod (4322) are both connected to the outward expansion maintaining assembly (30). The torsion spring (433) is sleeved on the first end of the first transmission rod (4321). The second end of the torsion spring (433) passes through the first transmission rod (4321) and presses against the second transmission rod (4322).

10. The cleaning device according to claim 8, characterized in that The lifting buffer portion (43) further includes a stop plate (434), the stop plate (434) is connected to the fixing plate (431), and the stop plate (434) is located at the top of the outward expansion maintaining assembly (30).

Images