Cleaning device

Abstract

The utility model mainly relates to a cleaning device which comprises a device body and a cleaning mechanism, the device body is provided with a transmission slope, the cleaning mechanism comprises a cleaning belt, a first roller, a second roller and a connecting rod assembly, the connecting rod assembly comprises a first end and a second end which are oppositely arranged, and the first roller is rotationally supported at the first end of the connecting rod assembly; the first roller is rotatably supported at the first end of the connecting rod assembly and can rotate around a first axis, the second roller is rotatably supported at the second end of the connecting rod assembly and can rotate around a second axis parallel to the first axis, the connecting rod assembly is rotatably supported on the equipment body, and the cleaning belt is annularly arranged around the peripheries of the first roller and the second roller; in the first working mode, the driving mechanism drives the second roller to rotate forwards around the second axis so that the portion, abutting against the conveying slope, of the cleaning belt can move towards the upper end of the conveying slope, and in the second working mode, the driving mechanism drives the second roller to rotate reversely around the second axis. In this way, the cleaning capacity of the cleaning device can be effectively improved.

Description

Technical Field

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

[0002] In family life, tedious housework takes up a lot of time and energy, and cleaning devices came into being under such a background. Some existing cleaning devices, such as mopping machines, generally roll a drum to make the surface of the drum mop the floor to be cleaned. The cleaning mechanism of the existing cleaning device for cleaning the floor to be cleaned has the disadvantage of low dynamic pressure, which makes the cleaning device unable to perform deep cleaning on the floor to be cleaned, such as cleaning stains on the floor to be cleaned and objects to be cleaned with strong adhesion. Utility Model Content

[0003] The present application provides a cleaning device, which includes an equipment body and a cleaning mechanism. The equipment body is provided with a transmission inclined plane. The cleaning mechanism includes a cleaning belt, a first roller, a second roller and a connecting rod assembly. The connecting rod assembly includes a first end and a second end arranged opposite to each other. The first roller is rotatably supported on the first end of the connecting rod assembly and can rotate around a first axis. The second roller is rotatably supported on the second end of the connecting rod assembly and can rotate around a second axis parallel to the first axis. The connecting rod assembly is rotatably supported on the equipment body. The first axis is perpendicular to the travel direction of the cleaning device. The cleaning belt is annularly arranged around the periphery of the first roller and the second roller. The cleaning belt abuts against the front side of the transmission inclined plane and is pressed against the ground to be cleaned by the second roller. The cleaning mechanism also includes a driving mechanism, which is transmission-connected to the second roller. The cleaning device is provided with a first working mode and a second working mode that can be selectively switched. In the first working mode, the driving mechanism drives the second roller to rotate forward around the second axis so that the part of the cleaning belt abutting against the transmission inclined plane moves toward the upper end of the transmission inclined plane. In the second working mode, the driving mechanism drives the second roller to reverse around the second axis.

[0004] Beneficial effects of the present application: The present application provides a cleaning device, which includes an equipment body and a cleaning mechanism, the equipment body is provided with a transmission slope, the cleaning mechanism includes a cleaning belt, a first roller, a second roller and a connecting rod assembly, the connecting rod assembly includes a first end and a second end arranged opposite to each other, the first roller is rotatably supported on the first end of the connecting rod assembly and can rotate around a first axis, the second roller is rotatably supported on the second end of the connecting rod assembly and can rotate around a second axis parallel to the first axis, the connecting rod assembly is rotatably supported on the equipment body, the first axis is perpendicular to the travel direction of the cleaning device, the cleaning belt is annularly arranged around the periphery of the first roller and the second roller, the cleaning belt abuts against the front side of the transmission slope and is pressed on the ground to be cleaned by the second roller; the cleaning mechanism also includes a driving mechanism, which is transmission-connected to the second roller, and the cleaning device is provided with a first working mode and a second working mode that can be selectively switched, wherein in the first working mode, the driving mechanism drives the second roller to rotate forward around the second axis so that the part of the cleaning belt abutting against the transmission slope moves toward the upper end of the transmission slope, and in the second working mode, the driving mechanism drives the second roller to reverse around the second axis. Through the above-mentioned method, the cleaning mechanism as a whole is a single cantilever structure, which is suspended on the main body of the equipment. The cleaning mechanism as a whole can press the cleaning belt against the ground to be cleaned and the transmission slope to achieve cleaning under the action of its own gravity. In addition, the cleaning device is also provided with a second working mode. In the second working mode, the driving mechanism drives the second roller to reverse around the first axis so that the part of the cleaning belt that abuts against the transmission slope moves toward the lower end of the transmission slope (that is, the cleaning belt reverses). This can effectively increase the dynamic pressure of the cleaning mechanism on the ground to be cleaned, so that the cleaning mechanism can perform deeper and more efficient cleaning on the ground to be cleaned, thereby effectively improving the cleaning ability of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0006] Figure 1 It is a schematic diagram of the three-dimensional structure of the cleaning device of the present application;

[0007] Figure 2 yes Figure 1 The cross-section aa of the cleaning device shown is a schematic structural diagram of an embodiment;

[0008] Figure 3 yes Figure 1 The cross section aa of the cleaning device shown is a simplified structural schematic diagram of another embodiment;

[0009] Figure 4 Yes Figure 2 Partial force analysis diagram of the cleaning mechanism, the ground to be cleaned, and the wiper blade in the first working mode as shown;

[0010] Figure 5 Yes Figure 4 Mechanical relationship diagram between the first acting force and the second acting force as shown;

[0011] Figure 6 Yes Figure 2 Partial force analysis diagram of the cleaning mechanism, the ground to be cleaned, and the wiper blade in the second working mode as shown;

[0012] Figure 7 Yes Figure 6 Mechanical relationship diagram between the first acting force and the second acting force as shown. Specific implementation manners

[0013] The present application will be further described in detail below in conjunction with the drawings and embodiments. It should be specifically pointed out that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0014] When the "embodiment" is mentioned in the present application, it means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present application may be combined with other embodiments.

[0015] The present application provides a cleaning device 1, as Figure 1 and Figure 2 shown. The cleaning device 1 includes a device main body 20 and a cleaning mechanism 10. The device main body 20 is provided with a transmission inclined surface 21.

[0016] In some embodiments, the device main body 20 is provided with a motion mechanism so that the cleaning device 1 as a whole can move on the ground 2 to be cleaned, such as the living room floor, the guest room floor, the kitchen floor and other areas to be cleaned.

[0017] The cleaning mechanism 10 abuts against the ground 2 to be cleaned to clean the ground 2 to be cleaned. Moreover, the cleaning mechanism 10 also abuts against the front side of the transmission inclined plane 21 to cooperate with the transmission inclined plane 21 to transfer the garbage, stains and other objects to be cleaned on the ground to be cleaned to the rear side of the transmission inclined plane 21, for example, to the storage box 40 at the rear side of the transmission inclined plane 21. Thereby, while effectively simplifying the overall structure of the cleaning device 1, the transmission efficiency of the cleaning device 1 for garbage, stains and other objects to be cleaned can be effectively improved. It should be noted that when the cleaning device 1 is placed on the ground 2 to be cleaned, the transmission inclined plane 21 is inclined relative to the ground 2 to be cleaned. Among them, the front side of the transmission inclined plane 21 is defined as the side with a larger inclination angle of the transmission inclined plane 21 relative to the ground 2 to be cleaned, and the rear side of the transmission inclined plane 21 is defined as the side with a smaller inclination angle of the transmission inclined plane 21 relative to the ground 2 to be cleaned.

[0018] Specifically, as Figure 2 shown, in this embodiment, the cleaning mechanism 10 is connected to the device main body 20 in a swing rod manner. In other words, the cleaning mechanism 10 can swing relative to the device main body 20 around the third axis z3. For example, in some embodiments, the cleaning mechanism 10 can be in a cantilever structure and is arranged on the device main body 20 so that the whole cleaning mechanism 10 has a tendency to swing around the third axis z3 towards the transmission inclined plane 21 under the action of its own gravity, so as to press the cleaning belt 13 against the ground 2 to be cleaned and the transmission inclined plane 21, thereby realizing the cleaning of the ground 2 to be cleaned.

[0019] Optionally, as Figure 2 shown, in some embodiments, the roller mechanism 15 includes a first roller 11, a second roller 12 and a connecting rod assembly 14. The connecting rod assembly 14 includes a first end and a second end arranged oppositely. The first roller 11 is rotatably supported at the first end of the connecting rod assembly 14 and can rotate around the first axis z1. The second roller 12 is rotatably supported at the second end of the connecting rod assembly 14 and can rotate around the second axis z2 parallel to the first axis z1. The connecting rod assembly 14 is rotatably supported on the device main body 20, so that the whole cleaning mechanism 10 is arranged on the device main body 20 in a swing rod manner. Among them, the first axis z1 is perpendicular to the traveling direction X1 of the cleaning device 1.

[0020] Optionally, as Figure 2As shown, in some embodiments, the first axis z1 is the center axis of the first roller 11, the second axis z2 is the center axis of the second roller 12, wherein the third axis z3 is the rotation axis of the connecting rod assembly 14 relative to the device body 20, wherein the third axis z3 can be arranged to coincide with the first axis z1, that is, the first axis z1 is used as the rotation axis of the roller 11 and also as the third axis z3 of the cleaning mechanism 10. For example, the first end of the connecting rod assembly 14 is rotatably connected to the first roller 11 and is also rotatably connected to the device body 20. The cleaning mechanism 10 is a single cantilever structure as a whole, suspended on the device body 20, so that the roller mechanism 15 as a whole can press the cleaning belt 13 on the ground 2 to be cleaned and the transmission inclined surface 21 under the action of its own gravity.

[0021] In an optional embodiment, the third axis z3 and the first axis z1 may also be parallel to each other.

[0022] In an optional embodiment, the third axis z3 and the first axis z1 are collinear, that is, the third axis z3 and the first axis z1 are the same axis.

[0023] In an optional embodiment, the distance between the third axis z3 and the first axis zl is smaller than the radius of the first roller 11.

[0024] Alternatively, if Figure 3 As shown, in some embodiments, the first axis z1, the second axis z2 and the third axis z3 are arranged at intervals with each other, wherein the third axis z3 can be arranged to be arranged in parallel with the first axis z1, or the third axis z3 can also be arranged to be arranged at a certain angle with the first axis z1. For example, in some embodiments, the roller mechanism 15 also includes a connecting member 16, one end of the connecting member 16 is fixedly connected to the connecting rod assembly 14, and the other end of the connecting member 16 is rotatably connected to the equipment body 20, so that the cleaning mechanism 10 is connected to the equipment body 20 as a whole in a swing rod manner. In this way, the cleaning mechanism 10 as a whole is a single cantilever structure, which is suspended on the equipment body 20, so that the roller mechanism 15 as a whole can press the cleaning belt 13 on the ground to be cleaned 2 and the transmission inclined surface 21 under the action of its own gravity.

[0025] Optionally, in some embodiments, the cleaning mechanism 10 also includes a driving mechanism, which is connected to the second roller 12 in a transmission manner. The driving mechanism is configured in this way to drive the second roller 12 to drive the ring-shaped cleaning belt 13 to rotate around the first axis z1 and the second axis z2 at the same time, thereby cleaning the floor 2 to be cleaned, and cooperating with the transmission ramp 21 to transmit garbage, stains and other cleaning materials along the transmission ramp 21 to the storage box 40 on the rear side of the transmission ramp 21, thereby achieving cleaning work more efficiently.

[0026] Optionally, in some embodiments, the cleaning device 1 is provided with a selectively switchable first working mode and a second working mode. In the first working mode, the driving mechanism drives the second roller 12 to rotate forward around the second axis z2, so that the portion of the cleaning belt 13 in contact with the transmission inclined surface 21 moves towards the upper end 212 of the transmission inclined surface 21 (that is, the cleaning belt 13 rotates forward). In this way, when the cleaning mechanism 10 sweeps the to-be-cleaned object on the to-be-cleaned ground 2 in the first working mode, it can also cooperate with the transmission inclined surface 21 to sweep the to-be-cleaned object onto the transmission inclined surface 21 and cooperate with the transmission inclined surface 21 to transport the to-be-cleaned object to the storage box 40. In the second working mode, the driving mechanism drives the second roller 12 to rotate reversely around the first axis z1, so that the portion of the cleaning belt 13 in contact with the transmission inclined surface 21 moves towards the lower end 211 of the transmission inclined surface 21 (that is, the cleaning belt 13 rotates reversely). In this way, the dynamic pressure of the cleaning mechanism 10 on the to-be-cleaned ground 2 can be effectively increased, so that the cleaning mechanism 10 can perform a deeper and more efficient cleaning on the to-be-cleaned ground, and thus effectively improve the cleaning ability of the cleaning device 1.

[0027] Specifically, referring to Figures 4 to 7 As shown, in the working state, the cleaning belt 13 moves relative to the to-be-cleaned ground 2 under the drive of the driving mechanism, so that there is an interaction force between the to-be-cleaned ground 2 and the cleaning mechanism 10 whose acting direction is parallel to the traveling direction X1. Among them, this interaction force includes the first force F2 of the to-be-cleaned ground 2 on the cleaning mechanism 10 along the traveling direction X1. And the cleaning mechanism 10 presses against the to-be-cleaned ground 2 under its own gravity, so that there is an interaction force between the to-be-cleaned ground 2 and the cleaning mechanism 10 in the vertical direction perpendicular to the to-be-cleaned ground 2. Among them, this interaction force includes the second force F1 of the to-be-cleaned ground 2 on the cleaning mechanism 10 in the vertical direction.

[0028] As Figure 4 shown, in the first working mode, the cleaning belt 13 rotates forward. At this time, the direction of the first force F2 is away from the transmission inclined surface 21. In this way, the first moment generated by the first force F2 relative to the third axis z3 of the cleaning mechanism 10 is opposite to the third moment generated by the gravity of the cleaning mechanism 10 relative to the third axis z3 of the cleaning mechanism 10, thereby reducing the tendency of the gravity to rotate the to-be-cleaned ground and reducing the dynamic pressure on the to-be-cleaned ground.

[0029] More specifically, in some embodiments, as Figure 4 and Figure 5As shown, the cleaning mechanism 10 as a whole has a single-cantilever structure. The third axis z3 of the cleaning mechanism 10 coincides with the first axis z1. The first moment is formed by the component force F22 of the first acting force F2 perpendicular to the connecting line z1z2 between the first axis z1 and the second axis z2. Among them, the direction of the first moment shows an upward-slanting trend, so that the cleaning mechanism 10 as a whole shows a trend of swinging upward obliquely. Therefore, the actual effect of the first moment is to overcome the gravity of the cleaning mechanism 10, thereby reducing to a certain extent the downward pressure of the cleaning mechanism 10 on the ground 2 to be cleaned, and further reducing to a certain extent the dynamic pressure of the cleaning mechanism 10 on the ground 2 to be cleaned.

[0030] As Figure 6 shown, in the second working mode, the cleaning belt 13 rotates in reverse, and the direction of the first acting force F2 faces the transmission inclined plane 21, so that the first moment generated by the first acting force F2 is in the same direction as the third moment (it should be noted that when the gravity of the cleaning mechanism 10 is constant, the magnitude and direction of the third moment are constant), thereby enhancing the tendency of the gravity to rotate the ground to be cleaned, and enhancing the dynamic downward pressure on the ground to be cleaned.

[0031] More specifically, in some embodiments, as Figure 6 and Figure 7 shown, the cleaning mechanism 10 as a whole has a single-cantilever structure. The third axis z3 of the cleaning mechanism 10 coincides with the first axis z1. The second moment is formed by the component force F21 of the second acting force F1 perpendicular to the connecting line z1z2 between the first axis z1 and the second axis z2. Among them, the direction of the second moment shows a downward-slanting trend, so that the cleaning mechanism 10 as a whole shows a trend of swinging downward obliquely. Therefore, the actual effect of the second moment can be superimposed on the gravity of the cleaning mechanism 10, thereby increasing to a certain extent the downward pressure of the cleaning mechanism 10 on the ground 2 to be cleaned, and further increasing to a certain extent the dynamic pressure of the cleaning mechanism 10 on the ground 2 to be cleaned.

[0032] Therefore, when in the second working mode, the reverse rotation of the cleaning belt 13 can increase the second acting force F1 to a certain extent, thereby increasing to a certain extent the dynamic pressure of the cleaning mechanism 10 on the ground 2 to be cleaned, so that the cleaning belt 13 can clean the stains on the ground 2 to be cleaned or the objects to be cleaned with a relatively large adhesion force more efficiently, and further effectively improve the cleaning ability of the cleaning device 1.

[0033] Moreover, when the gravity of the cleaning mechanism 10 is constant, compared with the first working mode, when the cleaning device 1 is in the second working mode, the dynamic pressure of the cleaning mechanism 10 on the ground 2 to be cleaned is greater.

[0034] Optionally, in some embodiments, the cleaning device 1 can selectively switch to the first working mode or the second working mode according to different working conditions. For example, in a cleaning task, the cleaning device 1 can first pre-clean the ground 2 to be cleaned through the first working mode to collect the objects to be cleaned on the ground 2 to be cleaned into the storage box 40. And because the dynamic pressure is relatively small, it is convenient to introduce the garbage from between the cleaning mechanism 10 and the ground 2 to be cleaned onto the transfer inclined plane 21. Further, the cleaning device 1 can switch to the second working mode to clean the stains on the ground 2 to be cleaned or the objects to be cleaned with a large adhesion force, so as to deeply clean the ground 2 to be cleaned to remove the stains or separate the objects to be cleaned with a large adhesion force from the ground 2 to be cleaned. Finally, the cleaning device 1 can switch back to the first working mode again to sweep the objects to be cleaned and stains remaining on the ground 2 to be cleaned after deep cleaning into the storage box 40.

[0035] Optionally, in some embodiments, the dynamic pressure generated by the cleaning belt 13 on the ground 2 to be cleaned in the second working mode is greater than the dynamic pressure generated on the ground 2 to be cleaned in the first working mode. Such a setting is to effectively ensure that the cleaning device 1 can clean the objects to be cleaned that it cannot clean in the first working mode in the second working mode, thus effectively ensuring the cleaning ability of the cleaning device 1.

[0036] Optionally, in some embodiments, the ratio of the dynamic pressure generated by the cleaning belt 13 on the ground 2 to be cleaned in the second working mode to the dynamic pressure generated on the ground 2 to be cleaned in the first working mode is not less than 1.5. For example, the ratio can be 1.5, 2.0, 2.4 or other actual values not less than 1.5, so as to effectively ensure that the cleaning device 1 can clean the objects to be cleaned that it cannot clean in the first working mode in the second working mode, thus effectively ensuring the cleaning ability of the cleaning device 1.

[0037] Optionally, in some embodiments, the difference between the dynamic pressure generated by the cleaning belt 13 on the ground 2 to be cleaned in the second working mode and the dynamic pressure generated on the ground 2 to be cleaned in the first working mode is not less than 400 grams-force. For example, 400 grams-force, 550 grams-force, 600 grams-force or 700 grams-force and other actual values not less than 400 grams-force, so as to effectively ensure that the cleaning device 1 can clean the objects to be cleaned that it cannot clean in the first working mode in the second working mode, thus effectively ensuring the cleaning ability of the cleaning device 1. It should be noted that in some embodiments herein, the common weight unit, namely "grams-force, g", is used to represent the magnitude of the dynamic pressure, and the dynamic pressure can be converted to the Newton force unit through the Newtonian mechanics formula. For example, 300 g = 0.3 kg × 9.8 N / kg = 2.94 N.

[0038] For example, in some embodiments, the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the second working mode may be 1200 grams-force, and the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the first working mode may be 500 grams-force. Thus, the difference between the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the second working mode and the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the first working mode is 600 grams-force, and the ratio of the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the second working mode to the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the first working mode is 2.4.

[0039] It should be noted that in this article, the external forces received by the cleaning mechanism 10 include the force exerted by the device main body 20 on the cleaning mechanism 10, the third force F3 exerted by the wiper member 50 on the cleaning mechanism 10 (see Figure 3 and Figure 4 ), the force exerted by the transmission inclined plane 21 on the cleaning mechanism 10, and the force exerted by the floor 2 to be cleaned on the cleaning mechanism 10. Among them, the relationship between the dynamic pressure generated by the cleaning belt 13 of the device on the floor 2 to be cleaned in the second working mode and the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the first working mode is the specific result obtained through force analysis after comprehensively considering all the external forces received by the cleaning mechanism 10.

[0040] In an alternative embodiment, since the material of the floor 2 to be cleaned is different, it will directly affect the first force F2, and the dynamic pressure generated by the cleaning belt 13 on the floor 2 to be cleaned in the second working mode may also be different. The above-mentioned dynamic pressure generally refers to the dynamic pressure on wooden floors and ceramic tiles, etc.

[0041] Optionally, in some embodiments, the cleaning device 1 is further configured to respond to the startup instruction of the cleaning device 1 and set the current working state of the cleaning device 1 to the first working mode, so that the cleaning device 1 can directly work in the first working mode after startup.

[0042] Optionally, as Figure 1As shown, in some embodiments, the cleaning device 1 further includes a speed regulation button 30. The driving mechanism is configured to gradually increase the rotation speed of the second roller 12 in response to continuous pressing of the speed regulation button 30 in the second working mode. For example, when the cleaning device 1 performs a cleaning operation, if the adhesion between the object to be cleaned and the ground 2 to be cleaned is relatively high, the cleaning device 1 can automatically continuously press the speed regulation button 30 or the user can manually continuously press the speed regulation button 30 to increase the rotation speed of the second roller 12, thereby enhancing the cleaning ability of the cleaning belt 13. With such a setting, the cleaning device 1 has the function of adjusting the cleaning ability according to the actual working conditions in the second working mode, so as to effectively improve the cleaning ability and cleaning efficiency of the cleaning device 1. And after the continuous pressing of the speed regulation button 30 is released, the rotation speed of the second roller 12 is restored to the rotation speed before the continuous pressing of the speed regulation button 30. In this way, after the cleaning device 1 finishes cleaning a relatively difficult object to be cleaned, the second roller 12 can automatically return to the normal rotation speed, thereby effectively improving the operation convenience of the cleaning device 1 while effectively reducing the energy consumption of the cleaning device 1.

[0043] Optionally, in some embodiments, the rotation speed of the second roller 12 in the first working mode is less than that in the second working mode. With such a setting, it is effectively ensured that the cleaning device 1 can clean the object to be cleaned that it cannot clean in the first working mode in the second working mode, thereby effectively ensuring the cleaning ability of the cleaning device 1.

[0044] Optionally, in some embodiments, the cleaning device 1 is configured to delay a predetermined time interval to perform a corresponding switching action in response to a switching instruction for switching from the first working mode to the second working mode, where the time interval is not less than the movement time of a predetermined reference point of the cleaning belt 13 from the lower end 211 to the upper end 212 of the transmission inclined plane 21 in the first working mode. Specifically, the switching instruction can be an artificial operation input, or a control instruction automatically generated by the cleaning device 1 after recognizing that the current area to be cleaned has been cleaned. Among them, the switching circuit inside the cleaning device 1 for switching between the first working mode and the second working mode, after receiving the switching instruction, performs the switching action after delaying the predetermined time interval. With such a setting, it can be effectively ensured that the cleaning mechanism 10 can transfer all the ground to be cleaned remaining on the transmission inclined plane 21 to the storage box 40 before performing the switching action, thereby preventing the cleaning belt 13 from bringing the object to be cleaned back to the ground again after the second roller 12 rotates in reverse, so that the cleaning device 1 needs to repeatedly clean the ground 2 to be cleaned, and thus effectively improving the cleaning efficiency of the cleaning device 1.

[0045] Optionally, as Figures 2 - 5As shown, in some embodiments, the cleaning device 1 further includes a wiper member 50 fixedly disposed on the device main body 20. The wiper member 50 abuts against the cleaning belt 13 and is used to scrape off the cleaning liquid on the cleaning belt 13 and the objects to be cleaned carried on the cleaning belt 13.

[0046] The time interval is not less than the rotation period of the cleaning belt 13 in the first working mode. Specifically, the rotation period of the cleaning belt 13 in the first working mode is the time for the cleaning belt 13 to rotate one week around the axis in the first working mode. The time interval for the cleaning device 1 to switch from the first working mode to the second working mode is set to be less than the rotation period of the cleaning belt 13 in the first working mode. In this way, it can effectively ensure that the wiper member 50 can scrape at least one full circle of the cleaning belt 13, thereby effectively improving the cleanliness of the cleaning belt 13, and further effectively preventing the probability that the cleaning belt 13 will bring the objects to be cleaned to the ground again after the second roller 12 reverses, so as to effectively improve the cleaning efficiency of the cleaning device 1. For example, in some embodiments, the time interval can be set to 1 time, 3 times, 10 times or higher of the rotation period of the cleaning belt 13 in the first working mode to ensure that the wiper member 50 can better clean the cleaning belt 13.

[0047] Optionally, as Figures 2 - 5 shown, in some embodiments, the wiper member 50 is configured to reduce the dynamic pressure generated by the cleaning belt 13 on the ground 2 to be cleaned in the first working mode. With this setting, the dynamic pressure generated by the cleaning belt 13 on the ground 2 to be cleaned in the first working mode is at a relatively moderate pressure value, so that the cleaning belt 13 can better clean the ground 2 to be cleaned while ensuring that the cleaning belt 13 does not have the ability to drive the entire cleaning device 1 to move forward, so as to effectively increase the relative movement stroke between the cleaning belt 13 and the ground 2 to be cleaned, and further effectively improve the cleaning ability of the cleaning device 1. And the wiper member 50 is configured to increase the dynamic pressure generated by the cleaning belt 13 on the ground 2 to be cleaned in the second working mode, so that in the second working mode of the cleaning device 1, it can clean stains or objects to be cleaned with greater adhesion, and further effectively improve the cleaning ability of the cleaning device 1.

[0048] Optionally, since the cleaning mechanism 10 forms a swing rod structure through the third axis z3, when the wiper member 50 abuts the cleaning belt 13 against the first roller 11 and has friction with the cleaning belt 13, in fact, the cleaning mechanism 10 has become a lever structure based on the third axis z3. In the first working mode, its third acting force F3 forms a moment opposite to the direction of gravity, that is, offsetting the pressure on the surface to be cleaned generated by gravity, while in the second working mode, its third acting force F3 forms a moment in the same direction as the direction of gravity, that is, strengthening the pressure on the surface to be cleaned.

[0049] Optionally, as Figure 4As shown, in some embodiments, the wiper member 50 abuts against the cleaning belt 13 wound around the first roller 11. With such a setting, when the cleaning belt 13 is in the first working mode, the acting direction of the third acting force F3 of the wiper member 50 on the entire cleaning mechanism 10 is downward. According to the lever principle, at this time, the wiper member 50 has a tendency to pry the cleaning structure to swing around the first rotating shaft away from the transmission inclined surface 21 and the ground 2 to be cleaned, thereby reducing to a certain extent the dynamic pressure of the cleaning belt 13 on the ground 2 to be cleaned. And, as Figure 6 shown, when in the second working mode, the acting direction of the third acting force F3 is upward. According to the lever principle, at this time, the wiper member 50 has a tendency to pry the cleaning structure to swing around the first rotating shaft towards the transmission inclined surface 21 and the ground 2 to be cleaned. In this way, it can effectively increase the dynamic pressure of the cleaning belt 13 on the ground 2 to be cleaned in the second working mode, thereby effectively improving the cleaning ability of the cleaning device 1.

[0050] Optionally, as Figure 2 shown, in some embodiments, the cleaning device 1 further includes a liquid applying member (not shown in the figure) and a storage box 40. The liquid applying member is used to apply a cleaning liquid on the cleaning belt 13. The storage box 40 is arranged at the rear side of the transmission inclined surface 21. The cleaning liquid scraped off the cleaning belt 13 by the wiper member 50 falls into the storage box 40 under the action of its own gravity. The liquid applying rate of the liquid applying member in the first working mode is greater than that in the second working mode. Specifically, in the second working mode, the cleaning belt 13 is in reverse rotation. The cleaning liquid scraped off the cleaning belt 13 by the wiper member 50 can only fall into the storage box 40 along both sides of the wiper member 50, which is not convenient for the cleaning liquid to fall into the storage box 40. Therefore, if the liquid applying rate of the liquid applying member is too fast in this state, there will be too much cleaning liquid in the cleaning belt 13, resulting in the accumulation of the cleaning liquid above the wiper member 50 and splashing onto various parts of the equipment main body 20 and the ground to be cleaned under the kinetic energy of the cleaning belt 13, thus greatly increasing the cleaning difficulty of the ground 2 to be cleaned. In the first working mode, the cleaning belt 13 is in forward rotation. The cleaning liquid scraped off the cleaning belt 13 by the wiper member 50 can directly fall into the storage box 40. Therefore, the liquid applying rate of the liquid applying member in the first working mode is greater than that in the second working mode, that is, when the cleaning device 1 enters the second working mode, the liquid applying rate of the liquid applying member is appropriately reduced. In this way, it can effectively reduce the probability that the cleaning liquid splashes onto various parts of the equipment main body 20 and the ground to be cleaned during the cleaning process of the cleaning device 1, thereby effectively improving the cleaning efficiency of the cleaning device 1.

[0051] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall similarly be included in the patent protection scope of the present application.

Claims

1. A cleaning device, characterized in that, The cleaning device comprises a device body and a cleaning mechanism, wherein the device body is provided with a transmission inclined plane, the cleaning mechanism comprises a cleaning belt, a first roller, a second roller and a connecting rod assembly, the connecting rod assembly comprises a first end and a second end which are arranged opposite to each other, the first roller is rotatably supported on the first end of the connecting rod assembly and can rotate around a first axis, the second roller is rotatably supported on the second end of the connecting rod assembly and can rotate around a second axis which is parallel to the first axis, the connecting rod assembly is rotatably supported on the device body, the first axis is perpendicular to the travel direction of the cleaning device, the cleaning belt is wound around the first roller and the second The cleaning belt is annularly arranged on the periphery of the roller, and is pressed against the front side of the transmission slope and is held on the ground to be cleaned by the second roller; the cleaning mechanism also includes a driving mechanism, which is transmission-connected to the second roller, and the cleaning device is provided with a first working mode and a second working mode that can be selectively switched, wherein, in the first working mode, the driving mechanism drives the second roller to rotate forward around the second axis so that the portion of the cleaning belt abutting against the transmission slope moves toward the upper end of the transmission slope, and in the second working mode, the driving mechanism drives the second roller to reverse around the second axis.

2. The cleaning device according to claim 1, characterized in that, A ratio between the dynamic pressure generated by the cleaning belt on the floor to be cleaned in the second working mode and the dynamic pressure generated by the cleaning belt on the floor to be cleaned in the first working mode is not less than 1.

5.

3. The cleaning device according to claim 1, characterized in that, The difference between the dynamic pressure generated by the cleaning belt on the floor to be cleaned in the second working mode and the dynamic pressure generated by the cleaning belt on the floor to be cleaned in the first working mode is not less than 400 grams-force.

4. The cleaning device according to claim 1, wherein The cleaning device is configured to delay a predetermined time interval in response to a switching instruction from the first operating mode to the second operating mode to perform a corresponding switching action, wherein the time interval is not less than the movement time of a predetermined reference point of the cleaning belt from the lower end of the transmission slope to the upper end of the transmission slope in the first operating mode.

5. The cleaning device according to claim 4, characterized in that, The cleaning device further comprises a scraper piece fixedly arranged on the equipment body, and the scraper piece abuts against the cleaning belt to scrape off the cleaning liquid on the cleaning belt.

6. The cleaning device according to claim 1, wherein The cleaning device also includes a scraper member fixedly arranged on the equipment body, the scraper member abuts against the cleaning belt, and the scraper member is configured to reduce the dynamic pressure generated by the cleaning belt on the ground to be cleaned in the first working mode, and to increase the dynamic pressure generated by the cleaning belt on the ground to be cleaned in the second working mode.

7. The cleaning device according to claim 6, characterized in that, The cleaning device further includes a liquid application component and a storage box. The liquid application component is used to apply a cleaning liquid to the cleaning belt. The blade member abuts against the cleaning belt wound around the first roller. The storage box is arranged at the rear side of the transmission inclined plane. The cleaning liquid scraped off from the cleaning belt by the blade member falls into the storage box under the action of its own gravity. Wherein the liquid application rate of the liquid application component in the first working mode is greater than that in the second working mode.

8. The cleaning device according to claim 1, characterized in that, The rotation speed of the second roller in the first working mode is less than that in the second working mode.

9. The cleaning device according to claim 1, characterized in that The cleaning device further includes a speed adjustment button. The driving mechanism is configured to gradually increase the rotation speed of the second roller in response to continuous pressing of the speed adjustment button in the second working mode, and restore the rotation speed of the second roller to the rotation speed before continuous pressing of the speed adjustment button after the continuous pressing of the speed adjustment button is released.

10. The cleaning device according to claim 1, characterized in that, The cleaning device is further configured to set the current working state of the cleaning device to the first working mode in response to the power-on instruction of the cleaning device.

11. The cleaning device according to any one of claims 1-10, characterized in that, The third axis about which the link assembly rotates relative to the device body is collinear with the first axis.

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