Vacuum cleaning base station, cleaning robot and cleaning system

Abstract

The present invention discloses a dust collection base station, a cleaning robot and a cleaning system. Based on the weight of dust borne by the dust bag, the dust collection base station relies on the airflow to guide the guide baffle to block the passage of the second dust inlet duct and the first dust inlet duct under the suction force of the dust collection fan, so as to avoid the phenomenon that dust is more likely to fall from the dust suction port or the dust inlet port when the robot or the dust collection base station is in the process of collecting a large amount of dust or has collected a large amount of dust, and even block the dust collection duct or the dust inlet duct. On the other hand, the cleaning robot uses the guide baffle and the magnetic adsorption component to cooperate with the dust collection fan to control the on and off of the dust inlet duct based on the weight of the dust collected by the dust collection bag. The overall dust collection structure is simple but practical, and no locking action is required. The phenomenon of the robot's dust collection duct being blocked is avoided. This cleaning system includes an intelligent cleaning robot and the dust collection base station.

Description

Technical Field

[0001] The invention relates to the technical field of robot vacuuming, and in particular to a vacuuming base station, a cleaning robot and a cleaning system. Background Art

[0002] A sweeping robot generally includes a robot that can move freely on the ground and a base station for charging the robot. The robot is provided with a dust box, a dust suction port, and a dust suction pipe connected between the dust box and the dust suction port. The dust box is used to store dust sucked from the ground by the robot; the maintenance station is provided with a dust chamber, a dust inlet, and a dust inlet pipe connected between the dust chamber and the dust inlet. The dust chamber is used to store dust sucked from the dust box on the robot. Chinese invention patent CN211749327U In a maintenance station for absorbing dust from a sweeping machine, a blocker is provided on the dust inlet pipe to prevent dust from entering the dust inlet pipe through the dust inlet.

[0003] However, when the robot or maintenance station is in the process of collecting a large amount of dust or has already collected a large amount of dust, the dust on the dust suction duct or the dust inlet duct is more likely to fall from the dust suction port or the dust inlet port, and may even block the dust suction duct or the dust inlet duct. The opening and closing of the dust suction fan and the coordinated blocker in the maintenance station of Chinese invention patent CN211749327U cannot effectively deal with the above problem. Summary of the invention

[0004] In order to overcome the above technical problems, the present invention discloses the following technical solutions:

[0005] A dust suction base station comprises: a dust collecting box body, which is provided with a first dust inlet duct and a second dust inlet duct, wherein a guide baffle and a magnetic adsorption component are provided in the first dust inlet duct; a dust collecting bag is arranged inside the dust collecting box body; a dust accumulation port is provided vertically below the second dust inlet duct for being connected to the dust collecting bag; a dust suction fan is provided vertically above the second dust inlet duct; one end of the first dust inlet duct is used to insert a sweeping machine, and the other end of the first dust inlet duct is connected to the second dust inlet duct through the guide baffle and the magnetic adsorption component, so that when the dust collected by the dust collecting bag is heavier than a preset weight threshold and / or the dust suction fan is not working, the magnetic adsorption component guides the guide baffle to block the passage between the second dust inlet duct and the first dust inlet duct; when the dust collected by the dust collecting bag is lighter than a preset weight threshold, the dust suction fan guides the guide baffle to connect the second dust inlet duct with the first dust inlet duct, so that the dust inside the sweeping machine enters the interior of the dust collecting bag through the first dust inlet duct.

[0006] Compared with the prior art, this dust collection base station is based on the weight factor of the dust borne by the dust collecting bag. Under the suction force of the dust collection fan, it relies on the airflow to allow the magnetic adsorption component to guide the guide baffle to block the passage of the second dust inlet duct and the first dust inlet duct, thereby preventing the robot or the dust collection base station from collecting a large amount of dust or having collected a large amount of dust. The dust is more likely to fall from the dust collection port or dust inlet port, and even clog the dust collection duct or dust inlet duct.

[0007] Furthermore, the dust bag is arranged above the bottom of the dust collecting box and there is a sensor switch device between the dust collecting box and the bottom of the dust collecting box. The sensor switch device is connected to the dust collecting fan by an electric wire, and is used to shut down the dust collecting fan through an electric signal when the weight exceeds a preset weight threshold so that the magnetic adsorption component attracts the guide baffle, and to maintain the operation of the dust collecting fan through an electric signal when the weight is lower than a preset weight threshold so that the guide baffle is blown to one side of the dust storage port. In this way, when a large amount of dust passes through the first dust inlet duct or has passed through a large amount of dust, the guide baffle and the magnetic adsorption component are naturally closed under the magnetic attraction to block the passage between the second dust inlet duct and the first dust inlet duct.

[0008] Furthermore, a first trapezoidal fixing piece that is longer at the top and shorter at the bottom is provided at the upper end of the first dust inlet duct, at least one guide baffle is installed on the surface of the first trapezoidal fixing piece, and the guide baffle is rotatably installed on the first trapezoidal fixing piece; a second trapezoidal fixing piece that is shorter at the top and longer at the bottom is provided at the lower end of the first dust inlet duct, and the magnetic adsorption piece is installed on the inclined upward slope of the second trapezoidal fixing piece, so that at least one guide baffle abuts against the inclined upward slope of the second trapezoidal fixing piece when the dust suction fan is not working. The dust remaining in the dust inlet duct enters the above-mentioned dust collecting bag along the trapezoidal slope, and the remaining dust is prevented from returning to the first dust inlet duct with the airflow again.

[0009] Furthermore, a rotating shaft component is provided at the installation position between the first trapezoidal fixing member and the guide baffle, and a rotating shaft hole is provided on the slope surface of the first trapezoidal fixing member. The guide baffle is rotatably installed inside the first dust inlet duct through the cooperation between the rotating shaft component and the rotating shaft hole, and forms a driven component to receive the suction force of the dust suction fan and face one side of the second dust inlet duct, and also receive the magnetic force of the magnetic adsorption component and face one side of the first dust inlet duct to abut against the second trapezoidal fixing member, so as to avoid the dust entering the second dust inlet duct from flowing back. Compared with the prior art, the guide baffle is only a driven component and is not used as a driving component. The rotation direction under the suction force of the dust suction fan is more flexible and is not limited to unidirectional rotation.

[0010] Furthermore, the dust storage port includes a first dust storage port and a second dust storage port, the first dust storage port is connected to the upward inclined slope of the second trapezoidal fixing member, and is used for receiving dust falling into the first dust inlet duct during the opening and closing of the guide baffle; wherein the magnetic adsorption member is located above the first dust storage port; wherein the second dust storage port is located directly below the suction port of the dust suction fan, so that the dust bag forms a negative pressure environment state under the action of the dust suction fan, and the dust initially attached to the surface of the first dust storage port falls into the second dust storage port during the movement with the airflow, thereby reducing the amount of dust accumulated in the first dust inlet duct and the second dust inlet duct.

[0011] Furthermore, when the guide baffle is a metal baffle, the magnetic adsorption member is a magnet block; or, when the guide baffle is a magnet sheet, the magnetic adsorption member is a magnet block; or, when the guide baffle is a magnet sheet, the magnetic adsorption member is a metal block. Compared with the prior art, the mold opening part as the baffle is simplified by relying on the magnetic attraction. It is not easy to deform and has a good sealing degree.

[0012] Furthermore, the sensor switch device is a pressure sensor or an elastic limit switch, which is used to convert an electrical signal through physical contact force to trigger the dust suction fan to change its working state, that is, from working to stopping, or from stopping to working.

[0013] Furthermore, heaters are provided on the sides and bottom of the dust collecting box for drying the dust or garbage inside the dust collecting bag to prevent the dust or garbage in the dust collecting bag from adhering to the first dust inlet duct or the second dust inlet duct.

[0014] Furthermore, a charging seat is installed below the bottom of the dust collecting box, and a charging spring for docking the charging electrode of the sweeper is arranged on the charging seat, so as to realize: the sweeper can be charged while the dust collecting box of the sweeper is cleaned.

[0015] A cleaning robot comprises a cleaning robot body, a dust collecting box and a dust suction port arranged on the cleaning robot body, a first dust inlet duct and a second dust inlet duct are arranged in sequence between the dust collecting box and the dust suction port, wherein a guide baffle and a magnetic adsorption member are arranged in the first dust inlet duct; a dust collecting bag is arranged inside the dust collecting box, a dust accumulation port is arranged vertically below the second dust inlet duct for connecting with the dust collecting bag; a dust suction fan is arranged vertically above the second dust inlet duct; one end of the first dust inlet duct is connected to the dust suction port, and the other end of the first dust inlet duct is connected to the second dust inlet duct through the guide baffle and the magnetic adsorption member, so that when the dust collected by the dust collecting bag is heavier than a preset weight threshold and / or the dust suction fan is not working, the magnetic adsorption member guides the guide baffle to block the passage between the second dust inlet duct and the first dust inlet duct; when the dust collected by the dust collecting bag is lighter than a preset weight threshold, the dust suction fan guides the guide baffle to connect the second dust inlet duct with the first dust inlet duct, so that the dust sucked by the dust suction port enters the interior of the dust collecting bag through the first dust inlet duct.

[0016] Compared with the existing technology, the overall cleaning robot uses the weight of dust collected by the dust bag as the basis, and uses the guide baffle and magnetic adsorption parts in conjunction with the dust suction fan to control the on and off of the dust inlet duct. The overall dust suction structure is simple but practical, and no locking action is required, thus avoiding the phenomenon of the robot's dust suction duct being blocked.

[0017] Furthermore, the dust bag is arranged above the bottom of the dust box and there is a sensor switch device between the bottom of the dust box. The sensor switch device is connected to the dust suction fan by an electric wire, and is used to shut down the dust suction fan through an electric signal when the weight exceeds a preset weight threshold so that the magnetic adsorption component attracts the guide baffle, and to maintain the operation of the dust suction fan through an electric signal when the weight is lower than a preset weight threshold so that the guide baffle is blown to one side of the dust storage port. In this way, when a large amount of dust passes through the first dust inlet duct or has passed through a large amount of dust, the guide baffle and the magnetic adsorption component are naturally closed under the magnetic attraction to block the passage between the second dust inlet duct and the first dust inlet duct.

[0018] Furthermore, when the deflector baffle is a metal baffle, the magnetic adsorption member is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption member is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption member is a metal block. Compared with the deflector and its mounting seat in the prior art, it is not easy to deform and has a good sealing degree.

[0019] Furthermore, the sensor switch device is a pressure sensor or an elastic limit switch, which is used to convert an electrical signal through a physical contact force to trigger the change of the robot's vacuuming working state.

[0020] Furthermore, heaters are provided on the peripheral sides and the bottom of the dust box for drying the dust or garbage inside the dust bag to prevent the dust or garbage in the dust bag from adhering to the first dust inlet duct or the second dust inlet duct.

[0021] A cleaning system includes an intelligent cleaning robot and the dust collection base station. Under the suction of the dust collection fan, the magnetic adsorption component can guide the guide baffle to block the passage of the second dust inlet duct and the first dust inlet duct by relying on the airflow, so as to avoid the phenomenon that dust is more likely to fall from the dust collection port or the dust inlet port when the robot or the dust collection base station is in the process of collecting a large amount of dust or has collected a large amount of dust, and even block the dust collection duct or the dust inlet duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a partial structural schematic diagram of a dust collection base station for a sweeping machine.

[0023] Figure 2 Schematic diagram of the internal structure of the dust box of the cleaning robot in one embodiment.

[0024] Reference numerals:

[0025] 10: first dust inlet duct, 101: a first trapezoidal fixing member with a longer upper part and a shorter lower part arranged at the upper end inside the first dust inlet duct, 102: a second trapezoidal fixing member with a shorter upper part and a longer lower part arranged at the lower end inside the first dust inlet duct; 11: a flow guide baffle; 12: a magnetic adsorption member; 13: a second dust inlet duct; 14: a dust collecting bag; 141: a first dust storage port; 142: a second dust storage port; 15: a sensor switch device; 16: a dust suction fan; 17: a dust collecting box; 20: a sweeper. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] like Figure 1As shown, an embodiment of the present invention discloses a dust suction base station, comprising: a dust collecting box 17, provided with a first dust inlet duct 10 and a second dust inlet duct 13, a guide baffle 11 and a magnetic adsorption component 12 are arranged in the first dust inlet duct 10, the size of the guide baffle 11 is designed to be consistent with the inner diameter of the first dust inlet duct 10, so as to achieve blocking / closing of the first dust inlet duct 10 within the magnetic attraction range of the magnetic adsorption component 12. In this embodiment, the cross-section of the first dust inlet duct 10 can be circular, elliptical or rectangular, and the cross-section of the duct is divided into inner and outer diameters, which is helpful to mold a trapezoidal opening; in this embodiment, a dust bag 14 is arranged inside the dust collecting box 17 to receive dust and garbage sucked in by the first dust inlet duct 10. The choice of using the dust bag 14 in this embodiment is based on the principle of easy disassembly and replacement. When the weight of the dust and garbage contained in the dust bag 14 exceeds a certain threshold, it is convenient for the user to manually replace the new dust bag. Specifically, the dust bag 14 can be made of disposable materials for easy replacement. A dust collection port is provided vertically below the second dust inlet duct 13 for connecting with a dust bag. The dust bag 14 is hung on each dust collection port of the second dust inlet duct 13 and sealed therewith. An air inlet is provided vertically above the second dust inlet duct 13. The air inlet is connected to a dust suction fan 16, which is connected to the dust bag 14 through the second dust inlet duct 13. The dust suction fan 16 is installed in a fan room vertically above the second dust inlet duct 13. The fan room also has an air outlet for the dust suction fan 16 and a filter is installed above the air inlet. In practical applications, the filter is a HEPA filter, which can prevent dust from adversely affecting the dust suction fan. One end of the first dust inlet duct is used to insert the sweeper, and one end of the first dust inlet duct 10 is provided with a dust discharge port corresponding to the retractable suction pipe, which can be extended under the drive of the extension piece provided on the dust suction base station, and inserted into the dust return port of the dust box of the sweeper 20 in a horizontal direction or a vertical direction, or shortened to leave the dust return port. Figure 1 In the embodiment, one end of the first dust inlet duct 10 is preferably inserted from top to bottom into the dust return port of the dust collecting box at the top of the sweeping machine 20.

[0030] exist Figure 1In the illustrated embodiment, the other end of the first dust inlet duct 10 is connected to the second dust inlet duct 13 via a guide baffle 11 and a magnetic adsorption component 12. The guide baffle 11 and the magnetic adsorption component 12 cooperate with each other to control the on-off connection between the first dust inlet duct 10 and the second dust inlet duct 13 under the action of the dust suction fan 16. When the dust collected in the dust bag 14 is lighter than a preset weight threshold, the dust bag 14 can sense the weight change factor in the dust collecting box 17 by using other associated physical structures or physical media, and generate a physical change to transmit it to the dust suction fan 16 and maintain its normal operation, thereby generating a negative pressure in the dust bag 14 and the second dust inlet duct 13, attracting the guide baffle 11 to open, and not being attracted to the magnetic adsorption component 12, so that the dust suction fan 16 guides the guide baffle 11 to connect the second dust inlet duct 13 with the first dust inlet duct 10, thereby forming a negative pressure environment in the dust collecting box 17, and the dust inside the sweeper 20 successively enters the interior of the dust bag 14 along the first dust inlet duct 10 and the second dust inlet duct 13.

[0031] When the dust collected by the dust bag 14 is heavier than a preset weight threshold and / or the dust suction fan 16 is not working, that is, when too much dust is collected at the dust suction base station, the dust bag 14 can use the weight factor to trigger other associated physical structures or physical media in the dust collection box 17, and the contact sensing produces a physical change to trigger the dust suction fan 16 to stop working, so that the negative pressure environment of the dust suction fan 16 in the dust collection box 17 and the first dust inlet duct 10 and the second dust inlet duct 13 arranged therein disappears, and the guide baffle 11 and the magnetic adsorption component 12 are closed under the control of the magnetic attraction force to block the passage of the second dust inlet duct 13 and the first dust inlet duct 10, so as to prevent the dust in the first dust inlet duct 10 and / or the second dust inlet duct 13 from flowing back to the first dust inlet duct 10 or even back into the dust box of the sweeper due to not completely entering the dust bag 14, so that the leaked dust needs to be cleaned again by other means, which increases the steps of the cleaning work and complicates the simple cleaning control program.

[0032] Compared with the prior art, the dust collection base station is based on the weight of the dust borne by the dust bag 14. Under the suction of the dust collection fan 16, the magnetic adsorption component 12 guides the guide baffle 11 to block the passage of the second dust inlet duct 13 and the first dust inlet duct 10 by relying on the airflow, so as to avoid the phenomenon that the dust is more likely to fall from the dust collection port or the dust inlet port when the robot or the dust collection base station is in the process of collecting a large amount of dust or has collected a large amount of dust, and even block the dust collection duct or the dust inlet duct. Not only does it improve the dust removal effect of the base station, but it is also environmentally friendly and reduces secondary pollution.

[0033] As an embodiment, the dust bag 14 is arranged above the bottom of the dust collecting box 17 and there is a sensor switch device 15 between the bottom of the dust collecting box 17. The sensor switch device 15 is connected to the dust suction fan 16 by an electric wire. The sensor switch device 15 is used to maintain the operation of the dust suction fan through an electrical signal when the sensor switch device 15 is subjected to a weight lower than a preset weight threshold, or acts under the control of an external processor, or when a dust discharge port corresponding to the retractable suction pipe is provided at one end of the first dust inlet pipe 10 and just fits into the corresponding inlet position of the top shell of the dust box of the sweeper 20, so that a negative pressure environment is formed in the dust collecting box 17, causing the guide baffle 11 to be blown to one side of the dust storage port (the channel between the second dust inlet pipe 13 and the dust bag 14), so that the dust on the sweeper can be sucked into the dust bag 14 through the first dust inlet pipe 10. This sensor switch device 15 is used to squeeze the sensor switch device 15 to a certain degree of deformation when the dust bag 14 is subjected to a weight exceeding a preset weight threshold. When the electrical signal just changes to the corresponding threshold, it is transmitted as a trigger signal to the dust suction motor 16, and the dust suction fan 16 is turned off by the electrical signal. The negative pressure environment in the dust collection box 17 disappears, causing the magnetic adsorption component 12 to attract the guide baffle 11, blocking the second dust inlet duct 13 and the first dust inlet duct 10, and avoiding the phenomenon of dust flowing back to the first dust inlet duct 10 when too much dust is collected. Therefore, this embodiment allows the guide baffle and the magnetic adsorption component to close naturally under the magnetic attraction to block the passage of the second dust inlet duct and the first dust inlet duct when a large amount of dust passes through the first dust inlet duct or has passed a large amount of dust. Maintain the dust suction effect of the dust suction base station.

[0034] As an embodiment, a first trapezoidal fixing member 101 which is longer at the top and shorter at the bottom is provided at the upper end of the first dust inlet duct 10, and at least one of the guide baffles 11 is installed on the surface (slant) of the first trapezoidal fixing member 101, so that the guide baffle 11 has more sufficient space to be rotatably installed on the first trapezoidal fixing member 101; a second trapezoidal fixing member 102 which is shorter at the top and longer at the bottom is provided at the lower end of the first dust inlet duct 10, and the magnetic adsorption member 12 is installed on the inclined upward slope of the second trapezoidal fixing member 102, so that when the dust suction fan 16 is not working, at least one of the guide baffles 11 abuts against the inclined upward slope of the second trapezoidal fixing member 102 under the action of magnetic attraction, closing the through hole formed between the second trapezoidal fixing member 102 and the first trapezoidal fixing member 101, so that the dust remaining in the dust inlet duct can only fall into the above-mentioned dust collecting bag 14 along the trapezoidal slope, thereby preventing the remaining dust from returning to the first dust inlet duct 10 with the airflow again, so as to fall back into the dust collecting box of the sweeper. Among them, the slope setting of the second trapezoidal fixing member 102 not only facilitates the remaining dust and garbage to quickly slide into the dust collecting bag 14, but also can improve the structural collision strength in the process of sucking the guide baffle 11 by setting reinforcing ribs. The structure is simple and practical, and effectively avoids the backflow pollution problem in a large number of dust collection environments.

[0035] Preferably, a rotating shaft component (not shown in the figure) is arranged at the installation position between the first trapezoidal fixing piece 101 and the guide baffle 11, and a rotating shaft hole is arranged on the slope surface of the first trapezoidal fixing piece 101, and the guide baffle 11 is rotatably installed inside the first dust inlet duct 10 by cooperating between the rotating shaft component and the rotating shaft hole. When there are multiple guide baffles 11, the first trapezoidal fixing piece 101 has the same number of corresponding rotating shaft holes to cooperate with the guide baffle 11 to rotate with the air pressure generated by the dust suction fan 16. Therefore, the guide baffle 11 forms a driven component to accept the suction force of the dust suction fan 16 and face one side of the second dust inlet duct 13, and also accept the magnetic attraction force of the magnetic adsorption piece 102 and face one side of the first dust inlet duct 10 to abut against the second trapezoidal fixing piece 12 to avoid backflow of dust entering the second dust inlet duct 13. Compared with the prior art, the guide baffle disclosed in this embodiment is only a driven component and is not used as a driving component. The rotation direction under the suction force of the dust suction fan is more flexible and is not limited to unidirectional rotation.

[0036] Specifically, the dust storage port preferably includes a first dust storage port 141 and a second dust storage port 142, which can be used as two entrances of the dust bag 14. The first dust storage port 141 is connected to the inclined upward slope of the second trapezoidal fixing member 102, and is used to receive dust dropped by the first dust inlet duct 10 during the dust suction process in the aforementioned passage formed during the opening and closing process of the guide baffle 11, that is, during the process of leaving and abutting the second trapezoidal fixing member 102; wherein the magnetic adsorption member 12 is located above the first dust storage port 141, which can better prevent the dust in the dust inlet duct from flowing back. The second dust storage port 142 is located directly below the air suction port of the dust suction fan 16, so that the dust bag 14 forms a negative pressure environment state under the action of the dust suction fan 16, so that the dust initially attached to the surface of the first dust storage port 141 falls into the second dust storage port 142 during the process of moving with the air flow, reducing the amount of dust accumulated in the first dust inlet duct 10 and the second dust inlet duct 13, thereby making the dust weight borne by the above-mentioned sensor switch device 15 more real and accurate. The cleaning effect is better.

[0037] In the aforementioned embodiment, when the deflector baffle is a metal baffle, the magnetic adsorption member is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption member is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption member is a metal block. Specifically, the magnet block can be an aluminum-nickel-cobalt permanent magnet alloy or an iron-chromium-cobalt permanent magnet alloy. If one of the deflector baffle and the magnetic adsorption member adopts an electromagnet, the power can be selectively turned on and off as needed to control its working state. Compared with the prior art, relying on the magnetic attraction effect, the mold opening component as the blocker is simplified and the detection step of the rotation angle of the deflector baffle is omitted, and no locking action is required. It is not easy to deform and has a good sealing degree.

[0038] Preferably, the sensor switch device 15 is a pressure sensor or an elastic limit switch, which is used to convert an electrical signal through physical contact force to trigger the dust suction fan 16 to change its working state, that is, from working to stopping, or from stopping to working, so as to ensure that the dust suction fan works in an appropriate dust suction environment and reduce unnecessary waste of resources.

[0039] Preferably, heaters are provided on the sides and bottom of the dust collecting box 17 for drying the dust or garbage inside the dust collecting bag 14 to prevent the dust or garbage in the dust collecting bag 14 from adhering to the first dust inlet duct 10 or the second dust inlet duct 13 .

[0040] Preferably, a charging base is installed below the bottom of the dust collecting box 17, and a charging spring is provided on the charging base for docking the charging electrode of the sweeping machine 20. This realizes that the sweeping machine 20 can be charged while the dust collecting box of the sweeping machine 20 is cleaned.

[0041] The present invention further discloses a cleaning robot, comprising a cleaning robot body, a dust collection box and a dust suction port arranged on the cleaning robot body, a first dust inlet duct and a second dust inlet duct are arranged in sequence between the dust collection box and the dust suction port, and the dust collection box in the embodiment of the cleaning robot is equivalent to the dust collection box 17 of the aforementioned embodiment. Figure 2 As shown, a guide baffle 11 and a magnetic adsorption component 12 are provided in the first dust inlet duct 10. The size of the guide baffle 11 is designed to be consistent with the inner diameter of the first dust inlet duct 10, so as to achieve blocking / closing of the first dust inlet duct 10 within the magnetic attraction range of the magnetic adsorption component 12. In the present embodiment, the cross-section of the first dust inlet duct 10 can be circular, elliptical or rectangular, and the cross-section of the duct is divided into inner and outer diameters, which is helpful to mold a trapezoidal opening; in the present embodiment, a dust bag 14 is arranged inside the dust box of the cleaning robot to receive dust and garbage sucked in by the first dust inlet duct 10. The choice of using the dust bag 14 in the present embodiment is based on the principle of easy disassembly and replacement. When the weight of the dust and garbage contained in the dust bag 14 exceeds a certain threshold, it is convenient for the user to manually replace the new dust bag. Specifically, the dust bag 14 can be made of disposable materials for easy replacement. A dust collection port is provided vertically below the second dust inlet duct 13 for connecting with a dust bag. The dust bag 14 is hung on each dust collection port of the second dust inlet duct 13 and sealed therewith. An air inlet is provided vertically above the second dust inlet duct 13. The air inlet is connected to a dust suction fan 16, which is connected to the dust bag 14 through the second dust inlet duct 13. The dust suction fan 16 is installed in a fan room vertically above the second dust inlet duct 13. The fan room also has an air outlet for the dust suction fan 16 and a filter is installed above the air inlet. In practical applications, the filter is a HEPA filter, which can prevent dust from adversely affecting the dust suction fan. One end of the first dust inlet duct 10 is connected to the dust suction port at the bottom of the dust box of the cleaning robot.

[0042] exist Figure 2In the illustrated embodiment, the other end of the first dust inlet duct 10 is connected to the second dust inlet duct 13 via a guide baffle 11 and a magnetic adsorption component 12. The guide baffle 11 and the magnetic adsorption component 12 cooperate with each other to control the on-off connection between the first dust inlet duct 10 and the second dust inlet duct 13 under the action of the dust suction fan 16. When the dust collected in the dust bag 14 is lighter than a preset weight threshold, the dust bag 14 can sense the weight change factor by using other associated physical structures or physical media in the dust box of the cleaning robot, generate a physical change to transmit it to the dust suction fan 16 and maintain its normal operation, and generate negative pressure in the dust bag 14 and the second dust inlet duct 13, so as to attract the guide baffle 11 to open and not be attracted to the magnetic adsorption component 12, so that the dust suction fan 16 guides the guide baffle 11 to connect the second dust inlet duct 13 with the first dust inlet duct 10, thereby forming a negative pressure environment in the dust box, and the dust sucked from the outside by the cleaning robot successively enters the interior of the dust bag 14 along the first dust inlet duct 10 and the second dust inlet duct 13.

[0043] When the dust collected by the dust bag 14 is heavier than a preset weight threshold and / or the dust suction fan 16 is not working, that is, when the cleaning robot collects too much dust, the dust bag 14 can use the weight factor to trigger other associated physical structures or physical media in the dust collection box, and the contact sensing generates a physical change to trigger the dust suction fan 16 to stop working, so that the negative pressure environment of the dust suction fan 16 in the dust collection box and the first dust inlet duct 10 and the second dust inlet duct 13 arranged therein disappears, and the guide baffle 11 and the magnetic adsorption member 12 control the magnetic attraction force. The control is closed to block the passage of the second dust inlet duct 13 and the first dust inlet duct 10, so as to prevent the dust in the first dust inlet duct 10 and / or the second dust inlet duct 13 from flowing back to the first dust inlet duct 10 or even flowing back to the outside of the suction port of the cleaning robot due to not completely entering the dust collecting bag 14. In particular, the residual dust in the dust channel can easily leak out through the suction port, causing secondary pollution of the environment. The leaked dust needs to be cleaned again by other means, which increases the steps of the cleaning work and complicates the simple cleaning control program.

[0044] Compared with the existing technology, the overall cleaning robot uses the weight of dust collected by the dust bag as the basis, and uses the guide baffle and magnetic adsorption parts in conjunction with the dust suction fan to control the on and off of the dust inlet duct. The overall dust suction structure is simple but practical, and no locking action is required, thus avoiding the phenomenon of the robot's dust suction duct being blocked.

[0045] As an embodiment, the dust bag 14 is arranged above the bottom of the dust box of the cleaning robot and there is a sensor switch device 15 between the bottom of the dust box. The sensor switch device 15 is connected to the dust suction fan 16 by an electric wire. The sensor switch device 15 is used to maintain the operation of the dust suction fan through an electrical signal when the sensor switch device 15 is subjected to a weight lower than a preset weight threshold or is controlled by an external processor, so that a negative pressure environment is formed in the dust box, causing the guide baffle 11 to be blown to one side of the dust storage port (the channel between the second dust inlet pipe 13 and the dust bag 14), so that the sucked dust can be sucked into the dust bag 14 through the first dust inlet pipe 10. This sensor switch device 15 is used to squeeze the sensor switch device 15 to a certain degree of deformation when the dust bag 14 is subjected to a weight exceeding a preset weight threshold. When the electrical signal just changes to the corresponding threshold, it is transmitted as a trigger signal to the dust suction motor 16, and the dust suction fan 16 is turned off through the electrical signal. The negative pressure environment in the dust box of the cleaning robot disappears, causing the magnetic adsorption component 12 to attract the guide baffle 11, blocking the second dust inlet duct 13 and the first dust inlet duct 10, and avoiding the phenomenon of dust flowing back to the first dust inlet duct 10 when too much dust is collected. Therefore, this embodiment allows the guide baffle and the magnetic adsorption component to close naturally under the magnetic attraction to block the passage of the second dust inlet duct and the first dust inlet duct when a large amount of dust passes through the first dust inlet duct or has passed a large amount of dust. Maintain the dust suction effect of the cleaning robot.

[0046] As an embodiment, a first trapezoidal fixing member 101 which is longer at the top and shorter at the bottom is provided at the upper end of the first dust inlet duct 10, and at least one of the guide baffles 11 is installed on the surface (slant) of the first trapezoidal fixing member 101, so that the guide baffle 11 has more sufficient space to be rotatably installed on the first trapezoidal fixing member 101; a second trapezoidal fixing member 102 which is shorter at the top and longer at the bottom is provided at the lower end of the first dust inlet duct 10, and the magnetic adsorption member 12 is installed on the inclined upward slope of the second trapezoidal fixing member 102, so that when the dust suction fan 16 is not working, at least one of the guide baffles 11 abuts against the inclined upward slope of the second trapezoidal fixing member 102 under the action of magnetic attraction, closing the through hole formed between the second trapezoidal fixing member 102 and the first trapezoidal fixing member 101, so that the dust remaining in the dust inlet duct can only fall into the above-mentioned dust collecting bag 14 along the trapezoidal slope, thereby preventing the remaining dust from returning to the first dust inlet duct 10 with the airflow again, so as to fall back into the dust suction area of ​​the cleaning robot. Among them, the slope setting of the second trapezoidal fixing member 102 not only facilitates the remaining dust and garbage to quickly slide into the dust collecting bag 14, but also can improve the structural collision strength in the process of sucking the guide baffle 11 by setting reinforcing ribs. The structure is simple and practical, and effectively avoids the backflow pollution problem in a large number of dust collection environments.

[0047] Preferably, a rotating shaft component (not shown in the figure) is arranged at the installation position between the first trapezoidal fixing piece 101 and the guide baffle 11, and a rotating shaft hole is arranged on the slope surface of the first trapezoidal fixing piece 101, and the guide baffle 11 is rotatably installed inside the first dust inlet duct 10 by cooperating between the rotating shaft component and the rotating shaft hole. When there are multiple guide baffles 11, the first trapezoidal fixing piece 101 has the same number of corresponding rotating shaft holes to cooperate with the guide baffle 11 to rotate with the air pressure generated by the dust suction fan 16. Therefore, the guide baffle 11 forms a driven component to accept the suction force of the dust suction fan 16 and face one side of the second dust inlet duct 13, and also accept the magnetic attraction force of the magnetic adsorption piece 102 and face one side of the first dust inlet duct 10 to abut against the second trapezoidal fixing piece 12 to avoid backflow of dust entering the second dust inlet duct 13. Compared with the prior art, the guide baffle disclosed in this embodiment is only a driven component and is not used as a driving component. The rotation direction under the suction force of the dust suction fan is more flexible and is not limited to unidirectional rotation.

[0048] Specifically, the dust storage port preferably includes a first dust storage port 141 and a second dust storage port 142, which can be used as two entrances of the dust bag 14. The first dust storage port 141 is connected to the inclined upward slope of the second trapezoidal fixing member 102, and is used to receive dust dropped by the first dust inlet duct 10 during the dust suction process in the aforementioned passage formed during the opening and closing process of the guide baffle 11, that is, during the process of leaving and abutting the second trapezoidal fixing member 102; wherein the magnetic adsorption member 12 is located above the first dust storage port 141, which can better prevent the dust in the dust inlet duct from flowing back. The second dust storage port 142 is located directly below the air suction port of the dust suction fan 16, so that the dust bag 14 forms a negative pressure environment state under the action of the dust suction fan 16, so that the dust initially attached to the surface of the first dust storage port 141 falls into the second dust storage port 142 during the process of moving with the air flow, reducing the amount of dust accumulated in the first dust inlet duct 10 and the second dust inlet duct 13, thereby making the dust weight borne by the above-mentioned sensor switch device 15 more real and accurate. The cleaning effect is better.

[0049] In the aforementioned embodiment, when the deflector baffle is a metal baffle, the magnetic adsorption member is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption member is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption member is a metal block. Specifically, the magnet block can be an aluminum-nickel-cobalt permanent magnet alloy or an iron-chromium-cobalt permanent magnet alloy. If one of the deflector baffle and the magnetic adsorption member adopts an electromagnet, the power can be selectively turned on and off as needed to control its working state. Compared with the prior art, relying on the magnetic attraction effect, the mold opening component as the blocker is simplified and the detection step of the rotation angle of the deflector baffle is omitted, and no locking action is required. It is not easy to deform and has a good sealing degree.

[0050] Preferably, the sensor switch device 15 is a pressure sensor or an elastic limit switch, which is used to convert an electrical signal through physical contact force to trigger the dust suction fan 16 to change its working state, that is, from working to stopping, or from stopping to working, so as to ensure that the dust suction fan works in an appropriate dust suction environment and reduce unnecessary waste of resources.

[0051] Preferably, heaters are provided around the sides and bottom of the dust box of the cleaning robot to dry the dust or garbage inside the dust bag 14 to prevent the dust or garbage in the dust bag 14 from sticking to the first dust inlet duct 10 or the second dust inlet duct 13.

[0052] The embodiment of the present invention also discloses a cleaning system, including an intelligent cleaning robot and the dust suction base station of the aforementioned embodiment, so that the cleaning system can, under the suction of the dust suction fan, rely on the airflow to allow the magnetic adsorption component to guide the guide baffle to block the passage of the second dust inlet duct and the first dust inlet duct, so as to avoid the phenomenon that the robot or the dust suction base station is more likely to fall from the dust suction port or the dust inlet port when collecting a large amount of dust or has collected a large amount of dust, and even block the dust suction duct or the dust inlet duct. Among them, the intelligent cleaning robot of this embodiment is not necessarily the cleaning robot disclosed in the aforementioned embodiment, and the dust suction structure involved in this embodiment has been described in the embodiment of the aforementioned dust suction base station, and will not be repeated here.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] The disclosure above provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described above. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may appreciate the application of other processes and / or the use of other materials.

[0055] The device implementation described above is merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present implementation scheme. Those of ordinary skill in the art may understand and implement it without creative work.

Claims

1. A vacuum base station, characterized in that: include: The dust collecting box is provided with a first dust inlet duct and a second dust inlet duct, wherein a guide baffle and a magnetic adsorption member are provided in the first dust inlet duct; A dust collecting bag is arranged inside the dust collecting box; a dust collecting port is provided vertically below the second dust inlet duct for connecting with the dust collecting bag; a dust suction fan is connected vertically above the second dust inlet duct; One end of the first dust inlet duct is used to be inserted into the sweeper, and the other end of the first dust inlet duct is connected to the second dust inlet duct through a guide baffle and a magnetic adsorption component, so that when the dust collected by the dust bag is heavier than a preset weight threshold and / or the dust suction fan is not working, the magnetic adsorption component guides the guide baffle to block the passage between the second dust inlet duct and the first dust inlet duct; when the dust collected by the dust bag is lighter than a preset weight threshold, the dust suction fan guides the guide baffle to connect the second dust inlet duct with the first dust inlet duct, so that the dust inside the sweeper enters the interior of the dust bag through the first dust inlet duct; The dust bag is arranged above the bottom of the dust collecting box and there is a sensor switch device between the bottom of the dust collecting box. The sensor switch device is connected to the dust suction fan by an electric wire and is used to shut down the dust suction fan through an electric signal when the weight exceeds a preset weight threshold so that the magnetic adsorption component attracts the guide baffle. When the weight is lower than a preset weight threshold, the dust suction fan is kept working through an electric signal so that the guide baffle is blown to one side of the dust storage port.

2. The vacuum base station according to claim 1, characterized in that: A first trapezoidal fixing member which is longer at the top and shorter at the bottom is provided at the upper end of the first dust inlet duct, at least one guide baffle is installed on the surface of the first trapezoidal fixing member, and the guide baffle is rotatably installed on the first trapezoidal fixing member; A second trapezoidal fixing member which is shorter at the top and longer at the bottom is provided at the lower end of the first dust inlet duct, and the magnetic adsorption member is installed on the upward inclined slope of the second trapezoidal fixing member so that at least one of the guide baffles abuts against the upward inclined slope of the second trapezoidal fixing member when the dust suction fan is not working.

3. The vacuum base station according to claim 2, characterized in that: A rotating shaft component is arranged at the installation position between the first trapezoidal fixing member and the guide baffle, and a rotating shaft hole is arranged on the slope surface of the first trapezoidal fixing member. The guide baffle is rotatably installed in the first dust inlet duct through the cooperation between the rotating shaft component and the rotating shaft hole, and forms a driven component to receive the suction force of the dust suction fan and face one side of the second dust inlet duct, and also receive the magnetic attraction force of the magnetic adsorption component and face one side of the first dust inlet duct to abut against the second trapezoidal fixing member, so as to avoid the backflow of dust entering the second dust inlet duct.

4. The vacuum base station according to claim 3, characterized in that: The dust storage port comprises a first dust storage port and a second dust storage port, the first dust storage port being connected to the upwardly inclined slope of the second trapezoidal fixing member, and being used for receiving dust dropped from the first dust inlet duct during the opening and closing process of the guide baffle; Wherein, the magnetic adsorption component is located above the first dust storage port; Wherein, the second dust collection port is located directly below the air suction port of the dust suction fan, so that the dust collecting bag forms a negative pressure environment state under the action of the dust suction fan.

5. The vacuum base station according to claim 4, characterized in that: When the deflector baffle is a metal baffle, the magnetic adsorption component is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption component is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption component is a metal block.

6. The vacuum base station according to claim 5, characterized in that: The sensor switch device is a pressure sensor or an elastic limit switch.

7. The vacuum cleaning base station according to claim 6, characterized in that: Heaters are provided on the circumferential side and the bottom of the dust collecting box body for drying the dust or garbage inside the dust collecting bag to prevent the dust or garbage inside the dust collecting bag from adhering to the first dust inlet duct or the second dust inlet duct.

8. The vacuum base station according to claim 7, characterized in that: A charging base is also installed below the bottom of the dust collecting box, and a charging spring for docking the charging electrode of the sweeping machine is arranged on the charging base.

9. A cleaning robot, characterized in that: The cleaning robot comprises a cleaning robot body, a dust collecting box and a dust suction port arranged on the cleaning robot body, a first dust inlet duct and a second dust inlet duct are arranged in sequence between the dust collecting box and the dust suction port, wherein a guide baffle and a magnetic adsorption member are arranged in the first dust inlet duct; A dust bag is arranged inside the dust box, and a dust collection port is provided vertically below the second dust inlet duct for connecting with the dust bag; a dust suction fan is provided vertically above the second dust inlet duct; One end of the first dust inlet duct is connected to the dust suction port, and the other end of the first dust inlet duct is connected to the second dust inlet duct through a guide baffle and a magnetic adsorption component, so that when the dust collected by the dust bag is heavier than a preset weight threshold and / or the dust suction fan is not working, the magnetic adsorption component guides the guide baffle to block the passage between the second dust inlet duct and the first dust inlet duct; when the dust collected by the dust bag is lighter than a preset weight threshold, the dust suction fan guides the guide baffle to connect the second dust inlet duct with the first dust inlet duct, so that the dust sucked into the dust suction port enters the interior of the dust bag through the first dust inlet duct.

10. The cleaning robot according to claim 9, characterized in that: The dust bag is arranged above the bottom of the dust box and there is a sensor switch device between the bottom of the dust box. The sensor switch device is connected to the dust suction fan by an electric wire. It is used to shut down the dust suction fan through an electric signal when the weight exceeds a preset weight threshold so that the magnetic adsorption component attracts the guide baffle. When the weight is lower than a preset weight threshold, the dust suction fan is kept working through an electric signal so that the guide baffle is blown to one side of the dust storage port.

11. The cleaning robot according to claim 10, characterized in that: When the deflector baffle is a metal baffle, the magnetic adsorption component is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption component is a magnet block; or, when the deflector baffle is a magnet sheet, the magnetic adsorption component is a metal block.

12. The cleaning robot according to claim 11, characterized in that: The sensor switch device is a pressure sensor or an elastic limit switch.

13. The cleaning robot according to claim 12, characterized in that: Heaters are provided on the circumference and bottom of the dust collecting box for drying the dust or garbage inside the dust collecting bag to prevent the dust or garbage in the dust collecting bag from adhering to the first dust inlet duct or the second dust inlet duct.

14. A cleaning system, characterized in that: It comprises an intelligent cleaning robot and the vacuum base station as claimed in any one of claims 1 to 8.

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