Intelligent Sweeping Robot Exhaust Gas Utilization Device and Sweeping Robot

Abstract

The present application discloses an exhaust gas utilization device for an intelligent floor sweeper and a floor sweeper. The exhaust gas utilization device for the intelligent floor sweeper includes a centrifugal fan, an air duct module, a diversion switch module, and a subsequent module. The air duct module is formed with an exhaust duct and a recovery outlet duct. The air inlet of the centrifugal fan is configured to be connected to the previous module of the floor sweeper for providing negative pressure to the previous module for dust suction operation. The air outlet of the centrifugal fan is connected to the air duct module and is selectively communicated with the exhaust duct or the recovery outlet duct through the diversion switch module. The exhaust duct is communicated with the outside. The recovery outlet duct is communicated with the subsequent module, and the subsequent module is configured to utilize the exhaust gas discharged by the centrifugal fan for cleaning operation. The technical solution provided by the present application can effectively recover and utilize the exhaust gas discharged by the floor sweeper.

Description

Technical Field

[0001] This application relates to the technical field of floor sweepers, and more particularly, to an intelligent floor sweeper waste gas utilization device and a floor sweeper. Background Art

[0002] The existing dust suction system of floor sweeping robots is usually a traditional negative pressure dust suction structure, with the dust storage box in the front and a traditional centrifugal fan with an internal motor arranged at the rear of the middle of the robot for dust suction. When the centrifugal fan works, the inside of the dust storage box connected to it becomes negative pressure, sucking the dust concentrated by the roller brush into the dust storage box. At the same time, the centrifugal fan exhausts air at the rear, discharging the waste gas from the tail or the side rear of the intelligent floor sweeper.

[0003] However, when the centrifugal fan discharges waste gas, there are problems of fast air flow velocity and low energy utilization rate, and the kinetic energy in the waste gas is completely wasted. Summary of the Invention

[0004] This application provides an intelligent floor sweeper waste gas utilization device and a floor sweeper, which can effectively utilize the waste gas discharged by the floor sweeper.

[0005] In a first aspect, the present invention provides an intelligent floor sweeper waste gas utilization device, including a centrifugal fan, an air duct module, a diversion switch module, and a subsequent module;

[0006] The air duct module is formed with an exhaust duct and a recovery outlet duct;

[0007] The air inlet of the centrifugal fan is configured to be connected to the previous module of the floor sweeper, for providing negative pressure to the previous module to perform dust suction operation;

[0008] The air outlet of the centrifugal fan is connected to the air duct module, and is selectively connected to the exhaust duct or the recovery outlet duct through the diversion switch module;

[0009] The exhaust duct is connected to the outside;

[0010] The recovery outlet duct is connected to the subsequent module, and the subsequent module is configured to use the waste gas discharged by the centrifugal fan for cleaning operation.

[0011] In the above implementation process, the waste gas utilization device of the intelligent floor sweeper is applied to the floor sweeper to recycle the waste gas generated during the dust suction operation. The centrifugal fan operates to draw in the air flow from the previous module, creating a negative pressure in the previous module, thereby achieving the effect of dust suction for the floor sweeper. The waste gas generated by the centrifugal fan will enter the airway module. In one case, the diversion switch module conducts the centrifugal fan and the exhaust duct, and the waste gas generated by the centrifugal fan is discharged to the outside through the exhaust duct. In another case, the diversion switch module conducts the centrifugal fan and the recovery outlet airway, and the waste gas generated by the centrifugal fan enters the subsequent module through the recovery outlet airway. The subsequent module can utilize the waste gas or the power of the waste gas for cleaning operations.

[0012] In an alternative embodiment, the subsequent module includes a water spraying module.

[0013] In the above implementation process, the waste gas generated by the centrifugal fan enters the water spraying module through the recovery outlet airway, providing pressure for the water spraying module, enabling the water spraying module to perform water spraying operations. Exemplarily, the water spraying module may include a water tank and a nozzle. The recovery outlet airway is connected to the water tank, and the waste gas is discharged into the water tank, increasing the pressure in the water tank, causing the water in the water tank to be sprayed out by the nozzle under the action of the pressure to moisten and wash the stains on the ground, effectively utilizing the waste gas generated by the floor sweeper during dust suction, effectively improving the cleaning efficiency of the floor sweeper, and also effectively reducing the energy consumption of the floor sweeper.

[0014] In an alternative embodiment, the subsequent module includes a pneumatic self-cleaning module configured to blow the waste gas discharged by the centrifugal fan towards the roller of the floor sweeper.

[0015] In the above implementation process, the waste gas generated by the centrifugal fan enters the pneumatic self-cleaning module through the recovery outlet airway. Since the air flow discharged by the centrifugal fan has a high velocity, it has a certain kinetic energy. The pneumatic self-cleaning module guides the waste gas, which can blow off the attachments stuck to or attached to the roller of the floor sweeper, thereby achieving the purpose of cleaning the roller and improving the cleaning effect of the floor sweeper. Exemplarily, the pneumatic self-cleaning module may include an air pipe and an air nozzle. The recovery outlet airway conveys the waste gas to the air nozzle through the air pipe, and the air nozzle can be oriented towards the roller of the floor sweeper, thus accurately guiding the waste gas to the position of the roller.

[0016] In an alternative embodiment, the airway module includes an airway housing and a partition;

[0017] The airway housing is formed with an inlet and an outlet, and the inlet is connected to the air outlet of the centrifugal fan;

[0018] The partition is provided inside the airway housing and extends from the outlet towards the inlet, partitioning the inside of the airway housing and forming an exhaust duct and a recovery outlet airway;

[0019] In the above implementation process, the airway module has a simple structure, is easy to manufacture, and can effectively reduce the manufacturing cost of the sweeper.

[0020] In an alternative embodiment, the diversion switch module includes a valve body and a driving assembly;

[0021] The valve body is rotatably connected to the airway module. The valve body is formed with a valve flap, and the valve flap is inside the airway housing;

[0022] The driving assembly is configured to drive the valve body to rotate, so as to drive the valve flap to deflect between the exhaust duct and the recycling outlet duct, thereby cutting off the exhaust duct or the recycling outlet duct.

[0023] In the above implementation process, the diversion switch module has a simple structure, is easy to manufacture, and has a low cost. When it is necessary to discharge the waste gas to the outside, the driving assembly drives the valve body to rotate, so that the valve flap cuts off the recycling outlet duct and makes the exhaust duct conduct. The waste gas generated by the centrifugal fan is discharged along the exhaust duct through the inlet of the airway housing; when it is necessary to reuse the waste gas, the driving assembly drives the valve body to rotate, so that the valve flap cuts off the exhaust duct and makes the recycling outlet duct conduct. The waste gas generated by the centrifugal fan is discharged to the subsequent module along the recycling outlet duct through the inlet of the airway housing.

[0024] In an alternative embodiment, the valve body includes a rotating shaft and a toggling member;

[0025] The partition plate forms a hinge point at the end close to the inlet. The rotating shaft is hinged at the hinge point and one end of the rotating shaft penetrates through the airway housing;

[0026] The valve flap is connected to the rotating shaft, and the toggling member is connected to the rotating shaft and is located on the surface of the airway housing;

[0027] The driving assembly is configured to drive the toggling member to deflect.

[0028] In the above implementation process, the driving assembly drives the valve flap to deflect between the exhaust duct and the recycling outlet duct by driving the toggling member to deflect, so as to realize the discharge or reuse of the waste gas.

[0029] In an alternative embodiment, the toggling member includes a ferromagnetic element;

[0030] The driving assembly includes an electromagnet, an elastic member and a blade;

[0031] The electromagnet and the elastic member are arranged on the surface of the airway housing. The electromagnet is used for magnetic adsorption cooperation with the ferromagnetic element, and the elastic member is used to push the toggling member towards the direction of the electromagnet;

[0032] The blade is arranged on the rotating shaft and is located inside the airway housing, corresponding to the inlet of the airway housing, and is configured to be pushed by the waste gas discharged by the centrifugal fan, so as to drive the rotating shaft to rotate and make the toggling member away from the electromagnet.

[0033] In the above-mentioned implementation process, the valve body realizes the deflection of the valve plate between the exhaust duct and the recovery outlet duct through the action of the blade, the electromagnet and the elastic member and the action of the exhaust gas. In one case, the electromagnet absorbs the ferromagnetic element to resist the thrust of the exhaust gas on the blade, ensuring that the valve body remains stationary, so that the exhaust gas only flows to one of the exhaust duct and the recovery outlet duct; in another case, the electromagnet cancels the magnetic attraction force on the magnetic element, and the valve body rotates because the blade is pushed by the exhaust gas, and the thrust overcomes the elastic force of the elastic member, so that the exhaust gas can flow to the other of the exhaust duct and the recovery outlet duct, and as the exhaust gas continues to act on the blade, the exhaust gas finally flows only to the other of the exhaust duct and the recovery outlet duct; in another case, the centrifugal fan stops working, and since the blade is not pushed by the exhaust gas, the toggle member moves toward the electromagnet under the push of the elastic member, and the electromagnet absorbs the ferromagnetic element to complete the resetting of the valve body.

[0034] In an optional embodiment, the valve plate and the blade are arranged obliquely, the blade is located in the exhaust passage, and is configured to drive the valve plate to deflect to the exhaust passage under the push of the exhaust gas;

[0035] The elastic member is disposed at a position corresponding to the exhaust passage and is configured to drive the valve plate to deflect to the recovery outlet passage.

[0036] During the above implementation process, the exhaust gas generated by the centrifugal fan will push the blades, causing the valve plate to move toward the exhaust duct, and eventually cut off the exhaust duct, allowing the exhaust gas to be discharged through the recovery outlet duct; when the centrifugal fan stops working, the valve plate will move toward the recovery outlet duct under the action of the elastic part, and eventually the electromagnet will adsorb the ferromagnetic element, and the valve plate will cut off the recovery outlet duct, allowing the exhaust gas to be discharged through the exhaust duct.

[0037] In an optional embodiment, the electromagnet is configured to cancel the attraction force with the ferromagnetic element when the power is on, and to cooperate with the ferromagnetic element by magnetic attraction when the power is off.

[0038] In a second aspect, the present invention provides a sweeping machine, the sweeping machine comprising the intelligent sweeping machine exhaust gas utilization device of any one of the aforementioned embodiments;

[0039] The diversion switch module is connected to the control unit of the sweeper;

[0040] The dust suction port of the sweeping machine is connected in series with the dust collecting box and the air inlet of the centrifugal fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 This is a three-dimensional diagram of the exhaust gas utilization device of the intelligent sweeping machine in this embodiment;

[0043] Figure 2 is an internal schematic diagram of the airway module in this embodiment;

[0044] Figure 3 Schematic diagram of the valve body in this embodiment;

[0045] Figure 4 Schematic diagram of the valve plate and the airway housing in this embodiment;

[0046] Figure 5 This is a partial schematic diagram of the exhaust gas utilization device of the intelligent sweeping machine in this embodiment;

[0047] Figure 6 The first working state of the intelligent sweeper exhaust gas utilization device in this embodiment is provided;

[0048] Figure 7 A schematic diagram of the process of the intelligent sweeper exhaust gas utilization device in this embodiment changing from the first working state to the second working state is provided;

[0049] Figure 8 A second working state of the intelligent sweeper exhaust gas utilization device in this embodiment is provided.

[0050] Icons: 10- centrifugal fan; 20- airway module; 21- exhaust duct; 22- recovery outlet duct; 23- airway housing; 23a- inlet; 24- partition; 25- limit block; 30- flow diversion switch module; 31- valve body; 32- drive assembly; 33- valve plate; 34- rotating shaft; 35- toggle member; 36- ferromagnetic element; 37- electromagnet; 38- elastic member; 39- blade; 40- subsequent module. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0053] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0054] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the figures, or the orientation or positional relationships in which the product of this application is customarily placed during use, or the orientation or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0055] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0056] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0057] Next, the technical solutions in the present application will be described with reference to the figures.

[0058] This embodiment provides an intelligent floor sweeper waste gas utilization device, which can effectively recycle the waste gas discharged by the floor sweeper through the intelligent floor sweeper waste gas utilization device.

[0059] Please refer to Figure 1 and Figure 2 , Figure 1 which is a perspective view of the intelligent floor sweeper waste gas utilization device in this embodiment, Figure 2 and

[0060] which is an internal schematic view of the air duct module 20 in this embodiment.

[0061] The air duct module 20 is formed with an exhaust duct 21 and a recovery outlet duct 22.

[0062] The air inlet of the centrifugal fan 10 is configured to be connected to the previous module of the floor sweeper, and is used to provide negative pressure for the previous module to perform dust suction operation.

[0063] The air outlet of the centrifugal fan 10 is connected to the airway module 20, and is selectively communicated with the exhaust duct 21 or the recycling outlet duct 22 through the diversion switch module 30.

[0064] The exhaust duct 21 communicates with the outside. The recycling outlet duct 22 communicates with the subsequent module 40, and the subsequent module 40 is configured to perform a cleaning operation by using the waste gas discharged by the centrifugal fan 10.

[0065] It should be noted that the previous module may include a dust collection box connected in series with the dust suction port of the floor sweeper. When the centrifugal fan 10 works, air enters through the dust suction port of the floor sweeper, drives the dirty dust into the dust collection box, and then enters the centrifugal fan 10 through the filter screen.

[0066] In the above implementation process, the waste gas utilization device of the intelligent floor sweeper is applied to the floor sweeper to recycle the waste gas generated by the dust suction operation. When the centrifugal fan 10 works, the air flow is drawn into from the previous module, so that the previous module generates negative pressure, thereby realizing the dust suction effect of the floor sweeper, and the waste gas generated by the centrifugal fan 10 will enter the airway module 20; in one case, the diversion switch module 30 conducts the centrifugal fan 10 and the exhaust duct 21, and the waste gas generated by the centrifugal fan 10 is discharged to the outside through the exhaust duct 21; in another case, the diversion switch module 30 conducts the centrifugal fan 10 and the recycling outlet duct 22, and the waste gas generated by the centrifugal fan 10 enters the subsequent module 40 through the recycling outlet duct 22, and the subsequent module 40 can use the waste gas or the power of the waste gas to perform a cleaning operation.

[0067] It should be noted that in an optional implementation manner, the subsequent module 40 includes a water spraying module. The waste gas generated by the centrifugal fan 10 enters the water spraying module through the recycling outlet duct 22, provides pressure for the water spraying module, so that the water spraying module can perform a water spraying operation; exemplarily, the water spraying module may include a water tank and a nozzle, the recycling outlet duct 22 is connected to the water tank, and the waste gas is discharged into the water tank, then the pressure in the water tank is increased, so that the water in the water tank is sprayed out by the nozzle under the action of the pressure to moisten and wash the stains on the ground, effectively utilizing the waste gas generated by the floor sweeper due to dust suction, effectively improving the cleaning efficiency of the floor sweeper, and also effectively reducing the energy consumption of the floor sweeper.

[0068] It should be noted that, in an optional embodiment, the subsequent module 40 includes a pneumatic self-cleaning module, which is configured to blow the exhaust gas discharged by the centrifugal fan 10 toward the roller of the sweeper. The exhaust gas generated by the centrifugal fan 10 enters the pneumatic self-cleaning module through the recovery outlet duct 22. Since the airflow discharged by the centrifugal fan 10 has a fast flow rate, it has a certain kinetic energy. The pneumatic self-cleaning module guides the exhaust gas to blow away the attachments stuck in or attached to the roller of the sweeper, thereby achieving the purpose of cleaning the roller and improving the cleaning effect of the sweeper. Exemplarily, the pneumatic self-cleaning module may include an air pipe and an air nozzle, and the recovery outlet duct 22 conveys the exhaust gas to the air nozzle through the air pipe. The air nozzle may be set toward the roller of the sweeper, so as to accurately guide the exhaust gas to the position of the roller. At the same time, it should be explained that the roller can be a middle sweeping roller or a side sweeping roller of the sweeper or other shaft structure used to rotate to clean the ground.

[0069] See also Figure 2 The airway module 20 includes an airway housing 23 and a partition 24 .

[0070] The air channel housing 23 is formed with an inlet 23 a and an outlet, and the inlet 23 a is connected to the air outlet of the centrifugal fan 10 .

[0071] The partition 24 is provided inside the air passage housing 23 and extends from the outlet toward the inlet 23 a , and partitions the inside of the air passage housing 23 to form the exhaust passage 21 and the recovery outlet passage 22 .

[0072] In the above implementation process, the airway module 20 has a simple structure and is easy to manufacture, which can effectively reduce the manufacturing cost of the sweeper. Figure 2 , one side of the air duct housing 23 is inclined, and the other side is straight or approximately straight. The partition 24 divides the outlet of the air duct housing 23 into two parts, one of which forms a manifold with the inclined wall of the air duct housing 23, and the manifold is defined as the recovery outlet duct 22, and the other part is directly connected with the inlet 23a of the air duct housing 23 to form the exhaust duct 21. At the same time, in order to ensure that the inner wall of the air duct of the recovery outlet duct 22 is flat, the partition 24 is also inclined on one side of the recovery outlet duct 22. It should be noted that in the present disclosure, the partition 24 is a plate-like structure, and the partition 24 is composed of two plates, which are arranged obliquely to each other, and together divide the outlet of the air duct housing 23 into two independent openings.

[0073] See also Figure 3 , Figure 4 as well as Figure 5 , Figure 3 is a schematic diagram of the valve body 31 in this embodiment, Figure 4 Schematic diagram of the valve plate 33 and the airway housing 23 in this embodiment, Figure 5This is a partial schematic diagram of the exhaust gas utilization device of the intelligent sweeping machine in this embodiment.

[0074] The flow diversion switch module 30 includes a valve body 31 and a driving assembly 32 .

[0075] The valve body 31 is rotatably connected to the airway module. The valve body 31 is formed with a valve plate 33 . The valve plate 33 is located inside the airway housing 23 .

[0076] The driving assembly 32 is configured to drive the valve body 31 to rotate, so as to drive the valve plate 33 to deflect between the exhaust passage 21 and the recovery outlet passage 22 , thereby cutting off the exhaust passage 21 or the recovery outlet passage 22 .

[0077] In the above implementation process, the diversion switch module 30 has a simple structure, is easy to manufacture, and has low cost. When the exhaust gas needs to be discharged to the outside, the driving component 32 drives the valve body 31 to rotate, so that the valve plate 33 cuts off the recovery outlet duct 22, allowing the exhaust duct 21 to be connected, and the exhaust gas generated by the centrifugal fan 10 is discharged along the exhaust duct 21 through the inlet 23a of the air duct housing 23; when the exhaust gas needs to be reused, the driving component 32 drives the valve body 31 to rotate, so that the valve plate 33 cuts off the exhaust duct 21, allowing the recovery outlet duct 22 to be connected, and the exhaust gas generated by the centrifugal fan 10 is discharged to the subsequent module 40 through the inlet 23a of the air duct housing 23 along the recovery outlet duct 22.

[0078] In the present disclosure, the valve plate 33 has a thin sheet-shaped end. By rotating the valve plate 33, the end of the valve plate 33 can be fitted against the inclined inner wall or the straight inner wall of the airway housing 23, so as to effectively achieve the effect of cutting off the recovery outlet duct 22 or the exhaust duct 21.

[0079] Combination Figure 4 and Figure 5 The valve body 31 includes a rotating shaft 34 and a shifting member 35 .

[0080] A hinge point is formed at the end of the partition plate near the inlet 23a, and a rotating shaft 34 is hinged at the hinge point and one end of the rotating shaft 34 passes through the airway housing 23. The valve plate 33 is connected to the rotating shaft 34, and the toggle member 35 is connected to the rotating shaft 34 and is located on the surface of the airway housing 23. The driving assembly 32 is configured to drive the toggle member 35 to deflect.

[0081] In the above implementation process, the driving assembly 32 drives the toggle member 35 to deflect, thereby driving the valve plate 33 to deflect between the exhaust duct 21 and the recovery outlet duct 22 to discharge or reuse the exhaust gas. It should be noted that in the present disclosure, the toggle member 35 is located directly above the valve plate 33.

[0082] In the present disclosure, the toggle member 35 includes a ferromagnetic element 36 . The driving assembly 32 includes an electromagnet 37 , an elastic member 38 and a blade 39 .

[0083] The electromagnet 37 and the elastic member 38 are arranged on the surface of the airway housing 23. The electromagnet 37 is used to magnetically attract and cooperate with the ferromagnetic element 36, and the elastic member 38 is used to push the toggle member 35 to move in the direction of the electromagnet 37. The blade 39 is arranged on the rotating shaft 34 and is located inside the airway housing 23, corresponding to the inlet 23a of the airway housing 23, and is configured to be pushed by the exhaust gas discharged by the centrifugal fan 10, thereby driving the rotating shaft 34 to rotate and making the toggle member 35 away from the electromagnet 37.

[0084] In the above implementation process, the valve body 31 realizes the deflection of the valve plate 33 between the exhaust passage 21 and the recovery outlet passage 22 through the action of the blade 39 , the electromagnet 37 and the elastic member 38 and the action of the exhaust gas.

[0085] It should be noted that a limit block 25 may be provided on the surface of the housing, one end of the elastic member 38 abuts against the limit block 25 , and the other end abuts against the toggle member 35 .

[0086] It should be noted that, in the following, Figures 6 - 8 The black arrows in the figure represent the direction of exhaust gas flow.

[0087] See also Figure 6 , Figure 6 The first working state of the intelligent sweeper exhaust gas utilization device in this embodiment is provided. In one case, the electromagnet 37 attracts the ferromagnetic element 36 to resist the thrust of the exhaust gas on the blade 39, ensuring that the valve body 31 remains stationary, so that the exhaust gas only flows to one of the exhaust duct 21 and the recovery outlet duct 22. It should be noted that by limiting the position of the exhaust duct 21, the recovery outlet duct 22 and the valve plate 33, the exhaust direction of the exhaust gas in the current working state can be determined, for example, Figure 6 In the embodiment, the exhaust gas is directed only to the exhaust passage 21 .

[0088] See also Figure 7 and Figure 8 , Figure 7 A schematic diagram of the process of the intelligent sweeper exhaust gas utilization device in this embodiment changing from a first working state to a second working state is provided. Figure 8 A second working state of the intelligent sweeper exhaust gas utilization device in this embodiment is provided. In another case, the electromagnet 37 cancels the magnetic attraction force on the magnetic element, and the valve body 31 rotates because the blade 39 is pushed by the exhaust gas, and the thrust overcomes the elastic force of the elastic member 38, so that the exhaust gas can pass to the other of the exhaust duct 21 and the recovery outlet duct 22, and as the exhaust gas continues to act on the blade 39, the exhaust gas eventually only passes to the other of the exhaust duct 21 and the recovery outlet duct 22. It should be noted that by restricting the position of the exhaust duct 21, the recovery outlet duct 22 and the valve plate 33, the exhaust direction of the exhaust gas in the current working state can be determined, for example Figure 7In the embodiment, the final exhaust gas is only directed to the recovery outlet duct 22 .

[0089] When resetting is required, or in other words, when the intelligent sweeping machine exhaust gas utilization device needs to be switched from the second working state to the second working state, the centrifugal fan 10 stops working. Since the blades 39 are not pushed by the exhaust gas, the toggle member 35 moves toward the electromagnet 37 under the push of the elastic member 38, and the electromagnet 37 attracts the ferromagnetic element 36 to complete the resetting of the valve body 31.

[0090] In the present disclosure, the valve plate 33 and the blade 39 are arranged obliquely, the blade 39 is located in the exhaust passage 21, and is configured to drive the valve plate 33 to deflect to the exhaust passage 21 under the push of the exhaust gas. The setting position of the elastic member 38 corresponds to the exhaust passage 21, and is configured to drive the valve plate 33 to deflect to the recovery outlet passage 22.

[0091] The exhaust gas generated by the centrifugal fan 10 will push the blades 39, causing the valve plate 33 to move toward the exhaust duct 21, and finally cut off the exhaust duct 21, so that the exhaust gas is discharged through the recovery outlet duct 22; when the centrifugal fan 10 stops working, the valve plate 33 will move toward the recovery outlet duct 22 under the action of the elastic member 38, and finally the electromagnet 37 will attract the ferromagnetic element 36, and the valve plate 33 will cut off the recovery outlet duct 22, so that the exhaust gas is discharged through the exhaust duct 21.

[0092] At the same time, it should be noted that in one case, when the blade 39 reaches the limit position due to the thrust of the exhaust gas, that is, when the valve plate 33 abuts against the wall of the exhaust duct 21, the blade 39 may abut against the wall of the partition 24 to ensure that the blade 39 is supported by the partition 24 to avoid damage to the valve body 31.

[0093] It should be noted that, in the present disclosure, the electromagnet 37 is configured to cancel the adsorption force with the ferromagnetic element 36 when powered on, and to cooperate with the ferromagnetic element 36 by magnetic adsorption when powered off.

[0094] In the above-mentioned implementation process, the electromagnet 37 is energized to cancel the adsorption force between it and the ferromagnetic element 36, and is de-energized to adsorb the ferromagnetic element 36. This design is beneficial for discharging waste in a low-energy manner when the sweeper is not in use, or when the sweeper does not need to recycle waste gas. When the waste needs to be recycled, the electromagnet 37 is started to recycle the waste gas, which effectively saves energy and reduces the use cost of the sweeper.

[0095] It should be noted that the present disclosure also provides a sweeping machine, which includes the intelligent sweeping machine exhaust gas utilization device described above. The diversion switch module 30 is connected to the control unit of the sweeping machine, and the control unit of the sweeping machine can control the power on and off of the electromagnet 37. The dust suction port of the sweeping machine is connected in series with the dust collection box and the air inlet of the centrifugal fan 10. The subsequent module 40 can be selected as the water spray module described above.

[0096] When the floor sweeper is running and its built-in intelligent floor sweeping machine program recognizes that it is necessary to spray water or moisten the ground, the permanent magnet is electrified and demagnetized, so that the waste gas is introduced into the water tank of the water spraying module, and the water is sprayed out from the nozzle to moisten and wash the stains on the ground, improving the cleaning quality of the floor sweeper.

[0097] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An intelligent sweeper waste gas utilization device, It is characterized in that It includes a centrifugal fan, an airway module, a diversion switch module and a subsequent module; The air duct module comprises an air duct housing and a partition; the air duct housing is formed with an inlet and an outlet, and the inlet is connected to the air outlet of the centrifugal fan; the partition is arranged inside the air duct housing and extends from the outlet of the air duct housing toward the inlet of the air duct housing, and divides the inside of the air duct housing and forms an exhaust duct and a recovery outlet duct; The air inlet of the centrifugal fan is configured to be connected to a preceding module of the sweeper, and is used to provide negative pressure to the preceding module for performing a dust collection operation, wherein the preceding module includes a dust collection box; The air outlet of the centrifugal fan is connected to the air duct module and is selectively connected to the exhaust duct or the recovery air outlet duct through the diversion switch module, the diversion switch module includes a valve body and a drive assembly; the valve body is rotatably connected to the air duct module, the valve body is formed with a valve plate, the valve plate is located inside the air duct housing, and the valve body includes a rotating shaft and a toggle member; a hinge point is formed at the end of the partition portion close to the inlet, the rotating shaft is hinged at the hinge point and one end of the rotating shaft passes through the air duct housing; the valve plate is connected to the rotating shaft, and the toggle member is connected to the rotating shaft and is located on the surface of the air duct housing; the drive assembly is configured to drive the toggle member to deflect, so as to drive the valve plate to deflect between the exhaust duct and the recovery air outlet duct, thereby cutting off the exhaust duct or the recovery air outlet duct; The exhaust duct is in communication with the outside, the recovery outlet duct is in communication with the subsequent module, and the subsequent module is configured to perform a cleaning operation using the exhaust gas discharged by the centrifugal fan; Among them, the toggle member includes a ferromagnetic element, and the driving assembly includes an electromagnet, an elastic member and a blade; the electromagnet and the elastic member are arranged on the surface of the airway shell, the electromagnet is used to cooperate with the ferromagnetic element with magnetic adsorption, and the elastic member is used to push the toggle member to move in the direction of the electromagnet; the blade is arranged on the rotating shaft and is located inside the airway shell, corresponding to the inlet of the airway shell, and is configured to be pushed by the exhaust gas discharged by the centrifugal fan, thereby driving the rotating shaft to rotate and making the toggle member move away from the electromagnet.

2. The intelligent sweeper exhaust gas utilization device according to claim 1, It is characterized in that The subsequent modules include a water spray module.

3. The intelligent sweeper exhaust gas utilization device according to claim 1, It is characterized in that The subsequent module includes an air pressure self-cleaning module, and the air pressure self-cleaning module is configured to blow the exhaust gas discharged by the centrifugal fan toward the roller of the sweeper.

4. The intelligent sweeper exhaust gas utilization device according to claim 1, It is characterized in that The valve plate and the blade are arranged obliquely, the blade is located in the exhaust passage, and is configured to drive the valve plate to deflect to the exhaust passage under the push of the exhaust gas; The elastic member is disposed at a position corresponding to the exhaust passage and is configured to drive the valve plate to deflect to the recovery outlet passage.

5. The intelligent floor sweeper waste gas utilization device according to claim 4, characterized in that, the electromagnet is configured to cancel the adsorption force with the ferromagnetic element in the energized state and magnetically adsorb and cooperate with the ferromagnetic element in the de-energized state.

6. A floor sweeper, characterized in that, the floor sweeper includes the intelligent floor sweeper waste gas utilization device according to any one of claims 1-5; the diversion switch module is connected to the control unit of the floor sweeper; a dust collection box connected in series with the dust suction port of the floor sweeper is connected to the air inlet of the centrifugal fan, and a filter screen is arranged between the dust collection box and the centrifugal fan.

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