Control structure and cleaning equipment

Abstract

The utility model provides a control structure and cleaning equipment, and relates to the technical field of cleaning equipment, the control structure comprises a lifting assembly connected with a cleaning unit of the cleaning equipment, and the lifting assembly comprises a lifting driving device and a lifting device; the lifting device comprises a lifting rod, a matching component and a damping component, the lifting rod is connected with the lifting driving device, the matching component is in threaded connection with the lifting rod, and the damping component makes contact with the matching component. The matching part overcomes the acting force of the damping part and rotates along with the lifting rod. According to the cleaning device, the lifting rod is driven by the lifting driving device to rotate relative to the matching component and move in the axis direction of the lifting rod relative to the matching component at the same time, and then the cleaning unit can be lifted; when the lifting rod rotates and moves downwards to the low position, the lifting rod can drive the cleaning unit to rotate so as to clean the corners of the house.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of smart home, and particularly relates to a control structure of a cleaning unit and a cleaning device. BACKGROUND

[0002] With the improvement of the technology level, the quality of life of people has been greatly improved, especially the living environment has been greatly improved, and the time spent on cleaning has been more and more. The appearance of the sweeper helps people to reduce the burden, especially for the demand of floor mopping coverage, the sweeper needs to have the floor mopping ability in each position. In order to clean the house, the cleaning unit is usually provided on the sweeper, and the cleaning unit includes a main cleaning component (such as a rotatable round mop, a flat mop component, etc.) and a corner cleaning component (such as an edge mop component or an edge brush component). However, the current cleaning unit does not have the functions of extending, lifting or retracting.

[0003] For example, when the corner cleaning component does not have the functions of extending, lifting or retracting, the house corner cannot be effectively cleaned when it needs to be cleaned, or the edge mop component cannot be lifted or retracted when it does not need to be cleaned, which reduces the service life of the edge mop component and increases the power consumption and shortens the whole machine endurance. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the application is to provide a control structure and a cleaning device to solve the technical problem that the cleaning unit on the sweeper cannot be retracted.

[0005] To achieve the above purpose, the technical solution adopted by the application is:

[0006] The first aspect of the application provides a control structure, which comprises a lifting assembly connected with a cleaning unit of a cleaning device, and the lifting assembly comprises:

[0007] a lifting driving device;

[0008] a lifting device comprising a lifting rod and a cooperation component, the lifting rod being connected with the lifting driving device, and the cooperation component being threadedly connected with the lifting rod, and the lifting driving device being capable of driving the cleaning unit to lift.

[0009] In some implementations, the control structure further comprises a telescopic mechanism connected with the lifting assembly, and the telescopic mechanism is used to drive the cleaning unit to extend or retract relative to the cleaning device.

[0010] In some implementations, the lifting assembly is connected with the cleaning device through the telescopic mechanism, and the telescopic mechanism is used to drive the lifting assembly and the cleaning unit to extend or retract relative to the cleaning device; or one end of the telescopic mechanism is connected with the cleaning device through the lifting assembly, and the cleaning unit is replaced by the other end of the telescopic mechanism, and the lifting assembly is used to drive the telescopic mechanism and the cleaning unit to lift relative to the cleaning device.

[0011] In some implementations, the lifting assembly further comprises a damping component, the damping component contacts the fitting component, when the lifting rod rotates downward relative to the fitting component to the low position, the fitting component rotates together with the lifting rod against the force of the damping component.

[0012] In some implementations, the lifting driving device comprises a driving motor, a transmission part and a transmission housing, the driving motor is connected with the lifting rod through the transmission part, the transmission part is located in the transmission housing; the lifting device comprises a lifting housing, the lifting housing is arranged on one side of the transmission housing and connected with the transmission housing, the fitting component is located in the lifting housing, the lifting rod passes through the fitting component, one end of the lifting rod is connected with the transmission part, the other end of the lifting rod is used for being connected with the cleaning unit, the damping component is located between the transmission housing and the fitting component or between the lifting housing and the fitting component.

[0013] In some implementations, the fitting component comprises a fitting main body and a connecting plate, the connecting plate is sleeved on the fitting main body and connected with the fitting main body, the lifting rod passes through the fitting main body and is threadedly connected with the fitting main body; the transmission housing comprises a fitting part opposite to the connecting plate, the damping component is located between the fitting part and the connecting plate.

[0014] In some implementations, the damping component comprises an elastic piece and a damping ring, the damping ring is sleeved on the fitting main body and the damping ring contacts the connecting plate, the elastic piece is extruded between the damping ring and the fitting part, under the action of the damping component, the fitting main body is extruded in the lifting housing.

[0015] In some implementations, a step structure is formed on the lifting housing, the connecting plate is located between the step surface of the step structure and the damping component; the fitting component is provided with a bearing at the end away from the fitting component, the bearing is located in the lifting housing and the lifting rod passes through the bearing.

[0016] In some implementations, the transmission part comprises a terminal gear connected with the lifting rod, the lifting rod is inserted into a gear hole on the terminal gear, one of the lifting rod and the gear hole is provided with a guide groove and the other is provided with a guide protrusion, the guide protrusion is located in the guide groove, and the length direction of the guide groove is parallel to the axis direction of the gear hole.

[0017] In some implementations, the transmission part further comprises a turbine, a worm and a reduction gear set, the driving motor is connected with the worm, the worm is engaged with the turbine, the turbine is drivingly connected with the terminal gear through the reduction gear set.

[0018] In some implementations, the control structure further comprises a detection sensor and a controller, the detection sensor and the lifting driving device are electrically connected to the controller; when the lifting driving device drives the lifting rod to rotate and move up to a set high position relative to the matching component, the detection sensor detects a position signal of the lifting rod and transmits the signal to the controller, and the controller can control the lifting driving device to stop working according to the signal transmitted by the detection sensor.

[0019] In some implementations, one of the inner side surface of the matching component and the outer side surface of the lifting rod is provided with internal threads, and the other is provided with matching protrusions, the number of the internal threads is more than one, and each internal thread corresponds to more than one matching protrusion.

[0020] In some implementations, one end of the internal thread is formed with an abutting end surface, and when the lifting rod is located at the low position, the abutting end surface is in contact with the matching protrusion.

[0021] In some implementations, the telescopic mechanism comprises a translation driving motor, an intermediate transmission assembly, and a screw rod assembly, the screw rod assembly comprises a screw rod and a nut component threadedly connected to the screw rod, the translation driving motor is connected to the intermediate transmission assembly, the intermediate transmission assembly is connected to the screw rod, and the lifting driving device is connected to the nut component.

[0022] In some implementations, the telescopic mechanism further comprises a detection device for detecting the moving position of the nut component, the detection device and the translation driving motor are electrically connected to the controller of the control structure, and the detection device is used to detect a position signal of the nut component; when the controller receives the signal transmitted by the detection device, the controller controls the translation driving motor to stop working, so as to limit the stroke of the movement of the nut component.

[0023] In some implementations, the detection device comprises a first detection component and a second detection component, the first detection component and the second detection component are spaced apart along the length direction of the screw rod, and a detection portion is arranged on the nut component; when the nut component is located at a first position, the detection portion triggers the first detection component; and when the nut component is located at a second position, the detection portion triggers the second detection component.

[0024] The second aspect of the present application provides a cleaning device, which comprises a cleaning unit and a control structure according to any one of the technical solutions described above, and the cleaning unit is connected to the lifting assembly of the control structure.

[0025] The present application has the beneficial effect that, in the embodiment, since the matching component and the lifting rod are threadedly connected, the lifting rod not only rotates relative to the matching component, but also moves along the axis direction of the matching component under the driving of the lifting driving device, thereby lifting the cleaning unit, and when the cleaning unit is an edge mop assembly, the cleaning unit is not in contact with the ground when it is not needed to clean the corners of the house. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0027] Figure 1 A structural schematic diagram of the lifting assembly provided by the embodiments of the present application is shown in the figure.

[0028] Figure 2 A sectional view schematic diagram of the lifting assembly provided by the embodiments of the present application is shown in the figure.

[0029] Figure 3 An internal structure schematic diagram of the lifting assembly provided by the embodiments of the present application is shown in the figure.

[0030] Figure 4 A sectional view schematic diagram of the cooperating component provided by the embodiments of the present application is shown in the figure.

[0031] Figure 5 A structural schematic diagram of the lifting assembly and the telescopic mechanism provided by the embodiments of the present application is shown in the figure.

[0032] Figure 6 Another structural schematic diagram of the lifting assembly and the telescopic mechanism provided by the embodiments of the present application is shown in the figure.

[0033] In the figure, various reference signs are as follows:

[0034] 1-lifting assembly; 2-telescopic mechanism; 3-cleaning unit;

[0035] 11-lifting rod; 12-cooperating component; 13-damping component; 14-driving motor; 15-transmission part; 16-transmission housing; 17-lifting housing; 18-bearing; 19-detection sensor; 110-wear-resistant part;

[0036] 111-cooperating protrusion;

[0037] 121-cooperating body part; 122-connection plate; 123-internal thread;

[0038] 1231-abutment end face;

[0039] 131-elastic part; 132-damping ring;

[0040] 151-terminal gear; 152-worm; 153-turbine; 154-first gear; 155-second gear;

[0041] 1511-guiding groove;

[0042] 161- mating portion; 162- first housing portion; 163- second housing portion;

[0043] 171- step face;

[0044] 21- translation drive motor; 22- intermediate transmission assembly; 23- screw rod assembly; 24- first detection component; 25- second detection component; 26- detection portion; 27- guide rail; 28- control board; 29- translation housing;

[0045] 221- first intermediate gear; 222- second intermediate gear; 223- third intermediate gear set;

[0046] 231- screw rod; 232- nut component. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings. The embodiments described by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation to the present application.

[0048] In the description of the present application, it is to be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0049] In order to facilitate the clear description of the technical scheme of the present application, the terms "first", "second" and the like are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that the terms "first", "second" and the like do not limit the quantity and execution order, and the terms "first", "second" and the like do not necessarily mean different.

[0050] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the present application, "and / or" is only a kind of description of the association relationship of associated object, it is indicated that there can be three kinds of relations;For example, A and / or B, it can indicate: there are three kinds of cases of A, A and B exist simultaneously, B exists alone.In addition, the character " / " in the present application generally indicates that the associated object before and after is a kind of "or" relationship.

[0052] It should be noted that in the present application, "in an embodiment", "exemplarily", "for example" and the like are used to indicate as an example, illustration or description. Any embodiment or design scheme described as "in an embodiment", "exemplarily", "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. In fact, the use of "in an embodiment", "exemplarily", "for example" and the like is intended to present the relevant concept in a specific way.

[0053] The cleaning device includes a cleaning unit 3, and the cleaning unit includes a main cleaning component (such as a rotatable round mop, a flat mop component, etc.). The present embodiment provides a control structure, which can be connected with the main cleaning component.

[0054] In some scenarios, the cleaning unit 3 of the cleaning device not only includes a main cleaning component (such as a rotatable round mop, a flat mop component, etc.), but also includes a corner cleaning component (such as an edge mop component or an edge brush component). In the present embodiment, the control structure can be connected with the main cleaning component, or the control structure can be connected with the corner cleaning component, or the main cleaning component and the corner cleaning component are respectively connected with a control structure.

[0055] The control structure provided by the present embodiment will be described below in combination with the drawings and taking the control structure connected with the edge mop component as an example.

[0056] Please refer to Figures 1-2 , Figure 1 The structural schematic diagram of the control structure provided by the present embodiment is shown in the figure, Figure 2 The control structure provided by the present embodiment is shown in the figure. The control structure provided by the present embodiment includes a lifting assembly 1 connected with the cleaning unit 3 of the cleaning device.

[0057] The cleaning unit 3 is part of the structure of the cleaning device, and is usually used for cleaning the corners of a house. The prior art cleaning unit 3 does not have a retracting function and can only rotate. When the cleaning unit 3 is needed to clean the corners of a house, the driving device connected to the cleaning unit 3 is controlled to move, so as to drive the cleaning unit 3 to rotate and clean the corners of the house. When the cleaning unit 3 is not needed to clean the corners of a house, the driving device connected to the cleaning unit 3 is controlled to stop moving, and the cleaning unit 3 stops rotating. However, the cleaning unit 3 always stays in contact with the ground, i.e., the cleaning unit 3 does not have a retracting function. When the cleaning unit 3 is not needed to clean the corners of a house, the cleaning unit 3 is always in contact with the ground during the movement of the cleaning device, which reduces the service life of the cleaning unit 3 and increases the power consumption of the cleaning device during movement.

[0058] The control structure provided in the embodiment can be applied to the cleaning device. The lifting assembly 1 is connected to the cleaning unit 3. When the cleaning unit 3 is needed to clean the corners of a house, the lifting assembly 1 can drive the cleaning unit 3 to move downward to a low position and rotate the cleaning unit 3, so as to clean the corners of the house. When the cleaning unit 3 is not needed to clean the corners of a house, the lifting assembly 1 can drive the cleaning unit 3 to move upward to a predetermined high position, so that the cleaning unit 3 is not in contact with the ground, thereby avoiding the problem that the cleaning unit 3 is always in contact with the ground, which reduces the service life of the cleaning unit 3 and increases the power consumption of the cleaning device during movement.

[0059] In the embodiment, the lifting assembly 1 includes a lifting driving device and a lifting device. The lifting device includes a lifting rod 11 and a matching component 12.

[0060] Please refer to Figure 1 , which shows the lifting rod 11. The lifting rod 11 is used to be connected to the cleaning unit 3, and is preferably detachably connected to the cleaning unit 3. The lifting rod 11 is connected to the lifting driving device. When the lifting driving device moves, it can drive the lifting rod 11 to rotate around its own axis.

[0061] Please refer to Figure 2The cooperation component 12 is in threaded connection with the lifting rod 11. When the position of the cooperation component 12 is fixed, if the lifting rod 11 rotates, due to the threaded connection, the lifting rod 11 rotates relative to the cooperation component 12 and moves along the axis of the cooperation component 12 at the same time. For example, when the position of the cooperation component 12 is fixed, if the lifting rod 11 rotates in the positive direction under the driving of the lifting driving device, the lifting rod 11 moves downward along the axis of the cooperation component 12 relative to the cooperation component 12, and thus the cleaning unit 3 can be driven to move downward. If the lifting rod 11 rotates in the reverse direction under the driving of the lifting driving device, the lifting rod 11 moves upward along the axis of the cooperation component 12 relative to the cooperation component 12, and thus the cleaning unit 3 can be driven to move upward.

[0062] Here, it is to be explained that, as to the connection between the lifting rod 11 and the lifting driving device, the lifting driving device can drive the lifting rod 11 to rotate, and at the same time, the lifting driving device can also not affect the movement of the lifting rod 11 along the axis of the lifting rod 11.

[0063] In this embodiment, due to the threaded connection between the cooperation component 12 and the lifting rod 11, when the lifting rod 11 is driven by the lifting driving device, the lifting rod 11 not only rotates relative to the cooperation component 12, but also moves along the axis of the cooperation component 12 relative to the cooperation component 12, and thus the cleaning unit 3 can be lifted. When the cleaning unit 3 is a side cleaning assembly, the cleaning unit 3 is not in contact with the ground when it is not needed to clean the corners of the house.

[0064] In one embodiment, the lifting assembly 1 further comprises a damping component 13, which contacts the cooperation component 12. When the lifting driving device drives the lifting rod 11 to rotate and move downward relative to the cooperation component 12 to the low position, the cooperation component 12 rotates together with the lifting rod 11 against the force of the damping component 13. Please refer to Figure 2 , which shows the damping component 13.

[0065] The damping component 13 has a resistance effect on the matching component 12, specifically, when the lifting rod 11 moves along its own axis, there are a low position and a predetermined high position, when the lifting rod 11 rotates and moves downward from the predetermined high position to the low position, the matching component 12 is stationary under the action of the damping component 13; when the lifting rod 11 is located at the low position and continues to rotate forward, the matching component 12 rotates with the lifting rod 11 to overcome the force of the damping component 13, so that the lifting rod 11 drives the cleaning unit 3 to rotate only, without moving downward along the axis of the lifting rod 11, to realize the cleaning of the corner of the house; when the lifting rod 11 rotates and moves upward from the low position to the predetermined high position, the matching component 12 is stationary under the action of the damping component 13, so as to realize the upward movement of the cleaning unit 3, and the cleaning unit 3 is separated from the ground.

[0066] In the embodiment, when the lifting rod 11 rotates and moves to the predetermined high position, the lifting driving device can be controlled to stop working, so that the lifting rod 11 stays at the predetermined high position; when the lifting rod 11 rotates and moves to the low position, the lifting rod 11 cannot rotate relative to the matching component 12, and since the matching component 12 is not fixed, only the damping component 13 has a resistance effect on the matching component 12, when the lifting rod 11 rotates and moves to the low position, the force of the lifting rod 11 on the matching component 12 overcomes the resistance effect of the damping component 13 on the matching component 12, so that when the lifting rod 11 is located at the low position and continues to rotate forward, the matching component 12 rotates with the lifting rod 11 to overcome the force of the damping component 13.

[0067] In the embodiment, when the lifting rod 11 rotates and moves to the low position and the lifting rod 11 continues to rotate, the matching component 12 rotates with the lifting rod 11 to overcome the force of the damping component 13, so that the lifting rod 11 drives only the cleaning unit 3 to rotate, without moving downward along the axis of the lifting rod 11, to realize the cleaning of the corner of the house.

[0068] Regarding the connection structure of the lifting assembly 1 and the cleaning unit 3, in one embodiment, one end of the lifting rod 11 is provided with an insertion hole, the cleaning unit 3 is inserted into the insertion hole on the lifting rod 11, and the cleaning unit 3 is in interference fit with the lifting rod 11, or the cleaning unit 3 is connected with the lifting rod 11 through screws or bolts; in another embodiment, the cleaning unit 3 is provided with an insertion hole, one end of the lifting rod 11 is inserted into the insertion hole of the cleaning unit 3, and the cleaning unit 3 is in interference fit with the lifting rod 11, or the cleaning unit 3 is connected with the lifting rod 11 through screws or bolts.

[0069] In one embodiment, the lifting driving device includes a driving motor 14, a transmission part 15 and a transmission housing 16, please see Figure 1 , the transmission housing 16 is shown, please seeFigure 2 The driving motor 14 is connected with the lifting rod 11 through the transmission part 15, and the transmission part 15 is located in the transmission housing 16.

[0070] The transmission housing 16 is connected with the housing of the driving motor 14, and the transmission part 15 is located in the transmission housing 16 to protect the transmission part 15. The driving shaft of the driving motor 14 is connected with the transmission part 15, and the lifting rod 11 is connected with the transmission part 15. When the driving motor 14 operates, the lifting rod 11 can be rotated by the transmission part 15. As to the lifting rod 11 and the transmission part 15, the transmission part 15 can not only rotate the lifting rod 11, but also the lifting rod 11 can move along its own axis relative to the transmission part 15.

[0071] In the embodiment, the lifting device comprises a lifting housing 17, which is arranged on one side of the transmission housing 16 and connected with the transmission housing 16. Please refer to Figure 1 The lifting housing 17 is shown in

[0072] Please refer to Figure 2 The cooperation part 12 is located in the lifting housing 17, and the lifting housing 17 supports and protects the cooperation part 12. The lifting rod 11 passes through the cooperation part 12, and the lifting rod 11 is threadedly connected with the cooperation part 12. One end of the lifting rod 11 is connected with the transmission part 15, and the other end is used to be connected with the cleaning unit 3.

[0073] As to the position of the damping part 13, the damping part 13 is located between the transmission housing 16 and the cooperation part 12 or between the lifting housing 17 and the cooperation part 12.

[0074] The positions of the transmission housing 16 and the lifting housing 17 are fixed. When the damping part 13 is arranged between the transmission housing 16 and the cooperation part 12, the cooperation part 12 can be temporarily fixed relative to the transmission housing 16 by the resistance of the damping part 13. When the damping part 13 is arranged between the lifting housing 17 and the cooperation part 12, the cooperation part 12 can be temporarily fixed relative to the lifting housing 17 by the resistance of the damping part 13.

[0075] Since the cooperation part 12 can be temporarily fixed relative to the lifting housing 17 or the transmission housing 16, when the driving motor 14 operates, the transmission part 15 can rotate the lifting rod 11, and the lifting rod 11 can move along its own axis, so that the lifting rod 11 moves between the low position and the predetermined high position. When the lifting rod 11 rotates and moves downward to the low position, the cooperation part 12 rotates together with the lifting rod 11 by overcoming the force of the damping part 13, that is, the cooperation part 12 can rotate relative to the lifting housing 17.

[0076] The lifting assembly 1 provided by the embodiment has simple structure, and through the resistance effect of the damping component 13, the cooperation component 12 is temporarily fixed relative to the lifting shell 17 or the transmission shell 16, so that the lifting rod 11 is moved between the low position and the predetermined high position under the driving of the lifting driving device; when the lifting rod 11 is rotated and moved downward to the low position, the cooperation component 12 is rotated together with the lifting rod 11 against the force of the damping component 13, at this time, the cooperation component 12 is rotated relative to the lifting shell 17.

[0077] When the damping component 13 is arranged between the transmission shell 16 and the cooperation component 12, in one embodiment, the cooperation component 12 includes a cooperation main body part 121 and a connecting plate 122, the connecting plate 122 is sleeved on the cooperation main body part 121 and connected with the cooperation main body part 121, the lifting rod 11 passes through the cooperation main body part 121 and is threadedly connected with the cooperation main body part 121; see Figure 2 , the cooperation main body part 121 and the connecting plate 122 are shown, and the cooperation main body part 121 and the connecting plate 122 are preferably integrally formed.

[0078] The transmission shell 16 includes a cooperation part 161 opposite to the connecting plate 122, please see Figure 2 , the cooperation part 161 is shown, and the damping component 13 is located between the cooperation part 161 and the connecting plate 122, and the cooperation main body part 121 is extruded in the lifting shell 17 under the action of the damping component 13.

[0079] The damping component 13 extrudes the connecting plate 122, so that the cooperation main body part 121 is extruded in the lifting shell 17 under the action of the damping component 13, and the cooperation component 12 is temporarily fixed in the lifting shell 17; when the lifting rod 11 is rotated and moved downward to the low position, the cooperation component 12 can be rotated relative to the lifting shell 17 against the friction force between the cooperation component 12 and the lifting shell 17 and against the friction force between the cooperation component 12 and the damping component 13.

[0080] In the embodiment, the damping component 13 is arranged to cooperate with the transmission shell 16 and the cooperation component 12, so that the cooperation main body part 121 is extruded in the lifting shell 17 under the action of the damping component 13, and the cooperation component 12 is temporarily fixed in the lifting shell 17; at the same time, the structure is simple and convenient to process.

[0081] Regarding the cooperation main body part 121 being extruded in the lifting shell 17 under the action of the damping component 13, in one embodiment, one end of the cooperation main body part 121 away from the transmission shell 16 is in contact with the inner side end surface of the lifting shell 17, so that the cooperation main body part 121 is extruded in the lifting shell 17 under the action of the damping component 13.

[0082] As to the pressing of the fitting body 121 in the lifting housing 17 under the action of the damping component 13, in another embodiment, a step structure is formed on the lifting housing 17, and the connecting plate 122 is located between the step face 171 of the step structure and the damping component 13; please refer to Figure 2 , which shows the connecting plate 122 located between the step face 171 of the step structure and the damping component 13.

[0083] When the lifting rod 11 rotates downward to the low position, the fitting component 12 can rotate relative to the lifting housing 17 by overcoming the friction force between the connecting plate 122 and the step face 171 and the friction force between the connecting plate 122 and the damping component 13.

[0084] In this embodiment, the end of the fitting component 12 away from the transmission housing 16 is provided with a bearing 18, which is located in the lifting housing 17 and through which the lifting rod 11 passes; please refer to Figure 2 , which shows the bearing 18.

[0085] In an example, the bearing 18 is a radial bearing, at this time, there is a gap between the end of the fitting component 12 and the bearing 18, that is, the end of the fitting component 12 does not contact the bearing 18. The bearing 18 includes an inner ring, an outer ring, rolling bodies and a retainer, the outer ring is sleeved on the outer of the inner ring, the retainer is arranged between the inner ring and the outer ring, a plurality of rolling bodies are arranged on the retainer, the lifting rod 11 passes through the inner ring of the bearing 18, and the lifting rod 11 is in interference fit with the inner ring of the bearing 18, the outer circumferential side surface of the outer ring of the bearing 18 is tightly fitted with the inner side surface of the lifting housing 17, and when the lifting rod 11 rotates, the inner ring of the bearing 18 rotates relative to the outer ring of the bearing 18.

[0086] In an example, the bearing 18 is an axial bearing, at this time, the end of the fitting component 12 contacts the bearing 18, the bearing 18 includes an upper ring, a lower ring, rolling bodies and a retainer, the upper ring contacts the end of the fitting component 12, the lower ring is located away from the end of the fitting component 12, the lower ring is supported on the inner side end face of the lifting housing 17, the retainer is arranged between the upper ring and the lower ring, a plurality of rolling bodies are arranged on the retainer, the lifting rod 11 passes through the bearing 18, and the outer circumferential side surface of the lifting rod 11 does not contact the bearing 18, when the fitting component 12 rotates together with the lifting rod 11 by overcoming the force of the damping component 13, the upper ring rotates together with the fitting component 12.

[0087] In this embodiment, it is preferred that a wear-resistant sheet is arranged between the step face 171 of the lifting housing 17 and the connecting plate 122 to prevent the fitting component 12 from causing wear to the lifting housing 17 when rotating.

[0088] In the embodiment, the inner side surface of the lifting shell 17 further comprises a first side surface area and a second side surface area, the first side surface area is opposite to the damping component 13, one end of the first side surface area is connected with the step surface 171, the first side surface area and the second side area are respectively arranged at two ends of the step surface 171, and the second side surface area is opposite to the matching main body part 121 and the bearing 18, and a gap exists between the second side surface area and the matching main body part 121.

[0089] In the embodiment, the bearing 18 is arranged at the end of the matching component 12 away from the matching component 12, so as to facilitate the rotation of the matching component 12 or the lifting rod 11 relative to the lifting shell 17.

[0090] In an embodiment, please refer to Figure 2 , the wear-resistant piece 110 is arranged at one end of the matching main body part 121 close to the matching part 161, two ends of the wear-resistant piece 110 are respectively in contact with the matching main body part 121 and the matching part 161, and the wear-resistant piece 110 is made of wear-resistant material.

[0091] In the embodiment, the wear-resistant piece 110 is arranged at the matching main body part 121 and the matching part 161, so that the matching component 12 is stably arranged in the lifting shell 17, and when the lifting rod 11 rotates and moves downward to the low position, the matching component 12 can rotate together with the lifting rod 11.

[0092] In the embodiment, the wear-resistant piece 110 is annular, the wear-resistant piece 110 is clamped at one end of the matching main body part 121, the lifting rod 11 passes through the wear-resistant piece 110, and the lifting rod 11 is not in contact with the wear-resistant piece 110, or the lifting rod 11 is in contact with the wear-resistant piece 110.

[0093] Regarding the damping component 13, in an embodiment, the damping component 13 is an elastic piece, and the elastic piece 131 is pressed between the connecting plate 122 and the matching part 161.

[0094] Regarding the damping component 13, in another embodiment, the damping component 13 comprises an elastic piece 131 and a damping ring 132, the damping ring 132 is sleeved on the matching main body part 121 and in contact with the connecting plate 122, and the elastic piece 131 is pressed between the damping ring 132 and the matching part 161.

[0095] Please refer to Figure 2 , the elastic piece 131 and the damping ring 132 are shown. When the lifting rod 11 rotates and moves downward to the low position, the matching component 12 can rotate relative to the damping ring 132.

[0096] The elastic piece 131 is preferably a spring piece.

[0097] Regarding the damping ring 132, preferably, the damping ring 132 comprises a first cylindrical portion and a first annular portion, the first annular portion is sleeved on the first cylindrical portion and is close to one end of the first cylindrical portion, the first cylindrical portion and the first annular portion are integrally formed, the first cylindrical portion is sleeved on the matching main body portion 121, and the elastic member 131 is extruded between the first annular portion and the matching portion 161.

[0098] Preferably, a ring-shaped groove is arranged on the side surface of the matching portion 161 towards the side of the damping ring 132, and one end of the elastic member 131 is inserted into the ring-shaped groove to limit the elastic member 131.

[0099] In the embodiment, the damping component 13 has a simple structure, and the matching component 12 can be temporarily fixed on the lifting shell 17 well.

[0100] As described above, the transmission portion 15 can not only drive the lifting rod 11 to rotate, but also enable the lifting rod 11 to move along the axis thereof relative to the transmission portion 15. In an embodiment, the transmission portion 15 comprises a terminal gear 151 connected with the lifting rod 11, please refer to Figure 2 , which shows the terminal gear 151, the lifting rod 11 is inserted into the gear hole on the terminal gear 151, wherein, Figure 2 , which shows the state that the lifting rod 11 is located at the low position.

[0101] One of the lifting rod 11 and the gear hole is provided with a guide groove 1511, and the other is provided with a guide protrusion, the guide protrusion is located in the guide groove 1511, and the length direction of the guide groove 1511 is parallel to the axis direction of the gear hole.

[0102] That is, in the embodiment, the outer circumferential side surface of the lifting rod 11 is provided with the guide protrusion, and the inner wall surface of the gear hole is provided with the guide groove 1511, please refer to Figure 2 , which shows that the inner wall surface of the terminal gear 151 is provided with the guide groove 1511; or the outer circumferential side surface of the lifting rod 11 is provided with the guide groove 1511, and the inner wall surface of the gear hole is provided with the guide protrusion.

[0103] The length direction of the guide groove 1511 is parallel to the axis direction of the gear hole, when the terminal gear 151 rotates, the terminal gear 151 can drive the lifting rod 11 to rotate, and since the guide protrusion is located in the guide groove 1511 and the guide protrusion can move along the guide groove 1511, the lifting rod 11 can move along the axis direction thereof.

[0104] When the inner wall surface of the gear hole is provided with the guide groove 1511, please refer to Figure 3, preferably one end of the guide groove 1511 extends downward to the bottom end of the terminal gear 151, and the other end of the guide groove 1511 does not open to the top end of the terminal gear 151, so as to limit the disengagement of the lifting rod 11 from the terminal gear 151.

[0105] In this embodiment, the terminal gear 151 includes a gear part and a cylinder part, and two cylinder parts are respectively arranged at both ends of the gear part, and the two cylinder parts are connected with the gear part. The gear part and the cylinder part are integrally formed, and the hole on the gear part and the holes on the two cylinder parts form the gear hole of the terminal gear 151.

[0106] In an example, the two cylinder parts are supported on the transmission housing 16 by bearing members. In another example, the two cylinder parts are supported on the transmission housing 16 by wear-resistant members 110.

[0107] In this embodiment, the guide groove 1511 is arranged on one of the lifting rod 11 and the gear hole, and the guide protrusion is arranged on the other one, so that the transmission part 15 not only drives the lifting rod 11 to rotate, but also drives the lifting rod 11 to move along its own axis direction relative to the transmission part 15.

[0108] Regarding the specific structure of the transmission part 15, in one embodiment, please refer to Figure 3 , the transmission part 15 further includes a turbine 153, a worm 152 and a reduction gear set. The driving motor 14 is connected with the worm 152, the worm 152 is engaged with the turbine 153, and the turbine 153 is drivingly connected with the terminal gear 151 through the reduction gear set.

[0109] Please refer to Figure 3 , which shows the driving motor 14, the worm 152 and the turbine 153. When the driving motor 14 operates, it can drive the worm 152 to rotate, the worm 152 drives the turbine 153 to rotate, and the turbine 153 drives the terminal gear 151 to rotate through the reduction gear set.

[0110] The worm 152 and the turbine 153 form a worm and gear transmission, which can change the transmission direction and provide relatively stable power transmission.

[0111] The reduction gear set drives the large gear through the small gear, and since the number of teeth of the large gear is more than that of the small gear, according to the relationship of the transmission ratio, the speed of the large gear will be reduced, and when the speed is reduced, the torque will be increased. The reduction gear set increases the torque of the output shaft by reducing the speed, which can drive larger load.

[0112] Regarding the reduction gear set, in one example, the reduction gear set includes a first gear 154 and a second gear 155, please refer to Figure 2The turbine 153 is coaxially arranged with the first gear 154, the turbine 153 is connected with the first gear 154, the second gear 155 is engaged with the first gear 154, the second gear 155 is engaged with the terminal gear 151, the second gear 155 is a large gear, and the first gear 154 is a small gear. When the turbine 153 rotates, the first gear 154 rotates with the turbine 153, the first gear 154 drives the second gear 155 to rotate, and the second gear 155 drives the terminal gear 151 to rotate.

[0113] A rotating shaft is arranged on the second gear 155, and the two ends of the rotating shaft are respectively supported on the transmission housing 16 through bearing members; the turbine 153 is integrally formed with the first gear 154, a rotating shaft is arranged at the end of the turbine 153 away from the first gear 154, and a rotating shaft is arranged at the end of the first gear 154 away from the turbine 153; bearing members are arranged on the rotating shafts, and the turbine 153 and the first gear 154 are supported on the transmission housing 16 through the bearing members arranged on the two ends of the rotating shafts.

[0114] Regarding the transmission housing 16, in an embodiment, the transmission housing 16 includes a first housing part 162 and a second housing part 163, please refer to Figure 2 , which shows the first housing part 162 and the second housing part 163.

[0115] The worm 152, the turbine 153, the first gear 154, the second gear 155, and the terminal gear 151 are arranged in the first housing part 162, the drive motor 14 is arranged outside the first housing part 162, and the drive shaft of the drive motor 14 extends into the first housing part 162 and is connected with the worm 152.

[0116] Please refer to Figure 6 , the second housing part 163 and the lifting housing 17 are respectively arranged at the two ends of the first housing part 162, and the second housing part 163 and the lifting housing 17 are detachably connected with the first housing part 162.

[0117] In the above description, when the lifting rod 11 is rotated and moved to a predetermined high position, the lifting driving device can be controlled to stop working, in an embodiment, the control structure further includes a detection sensor 19 and a controller, the detection sensor 19 and the lifting driving device are electrically connected with the controller; when the lifting driving device drives the lifting rod 11 to rotate and move to a set high position relative to the matching part 12, the detection sensor 19 detects a position signal of the lifting rod 11 and transmits the signal to the controller, and the controller can control the lifting driving device to stop working according to the signal transmitted by the detection sensor 19.

[0118] Please refer to Figure 2 , which shows the detection sensor 19, and the detection sensor 19 is preferably an optical sensor.

[0119] In one example, the detection sensor 19 is located on the outside of the transmission housing 16, i.e., see [reference needed]. Figure 2 Detection sensor 19 ( Figure 2 (Not shown in the diagram) It can be positioned above the second housing portion 163. In this case, the second housing portion 163 has an opening through which the lifting rod 11 extends out. When the lifting rod 11 extends a certain length out of the second housing portion 163, the detection sensor 19 detects the position signal of the lifting rod 11. Alternatively, in another example, the detection sensor 19 can also be positioned inside the transmission housing 16. Preferably, the detection sensor 19 is positioned outside the transmission housing 16 to reduce the volume of the transmission housing 16.

[0120] In this embodiment, a detection sensor 19 is provided to accurately detect the position of the lifting rod 11, so that the lifting rod 11 can stay at the set high position.

[0121] As described above, when the lifting rod 11 rotates and moves to the predetermined high position, the lifting drive device can be controlled to stop. In another embodiment, the controller controls the running time of the drive motor 14. When the lifting rod 11 is in the low position, if it is necessary to raise the lifting rod 11, the controller controls the drive motor 14 to start, so that the lifting rod 11 rotates and moves upward from the low position. After the drive motor 14 has moved for a period of time, the controller controls the drive motor 14 to stop. At this time, the lifting rod 11 has just rotated and moved upward to the predetermined high position.

[0122] Regarding the threaded connection between the mating component 12 and the lifting rod 11, in one embodiment, one of the inner side of the mating component 12 and the outer side of the lifting rod 11 is provided with an internal thread 123, and the other is provided with a mating protrusion 111. The number of internal threads 123 is more than one, and each internal thread 123 corresponds to more than one mating protrusion 111.

[0123] For example, see Figure 4 The inner side of the mating component 12 is provided with an internal thread 123, and the outer side of the lifting rod 11 is provided with a mating protrusion 111. Each internal thread 123 corresponds to one or more mating protrusions 111, thereby realizing the threaded connection between the mating component 12 and the lifting rod 11.

[0124] There is one or more internal threads 123. For example, two internal threads 123 are provided on the inner side of the mating component 12, that is, double threads are formed on the inner side of the mating component 12. Each internal thread 123 corresponds to one or more mating protrusions 111. For example, each internal thread 123 corresponds to one mating protrusion 111, and the two mating protrusions 111 are symmetrically arranged.

[0125] Regarding the shape of the mating protrusion 111, for example, the shape of the mating protrusion 111 can be cylindrical.

[0126] In the embodiment, one of the inner side surface of the fitting component 12 and the outer side surface of the lifting rod 11 is provided with the internal thread 123, and the other is provided with the fitting protrusion 111, so that the fitting component 12 and the lifting rod 11 are threadedly connected.

[0127] As described above, when the lifting driving device drives the lifting rod 11 to rotate and move downward to the low position relative to the fitting component 12, the fitting component 12 rotates together with the lifting rod 11 against the force of the damping component 13. In an embodiment, one end of the internal thread 123 is formed with an abutting end surface 1231, which is in contact with the fitting protrusion 111 when the lifting rod 11 is in the low position.

[0128] Please refer to Figure 4 , which shows the abutting end surface 1231. When the lifting rod 11 is in the low position, the abutting end surface 1231 is in contact with the fitting protrusion 111, so that the fitting component 12 rotates together with the lifting rod 11 against the force of the damping component 13 when the lifting rod 11 continues to rotate in the positive direction.

[0129] Two internal threads 123 are arranged on the inner side surface of the fitting component 12, and each internal thread 123 corresponds to one fitting protrusion 111. When the lifting rod 11 is in the low position, the fitting protrusions 111 are respectively in contact with the abutting end surfaces 1231 of the corresponding internal threads 123.

[0130] In an example, please refer to Figures 5-6 , a column is arranged along the radial direction of the lifting rod 11, and the two ends of the column protrude from the circumferential surface of the lifting rod 11 to form two fitting protrusions 111.

[0131] In the embodiment, the fitting protrusion 111 is in contact with the abutting end surface 1231, so that the lifting rod 11 continues to rotate in the positive direction to drive the fitting component 12 to rotate, which is simple in structure and easy to process.

[0132] Please refer to Figure 5 , Figure 6 is a structural schematic view of the connection between the lifting assembly 1 and the telescopic mechanism 2 provided in the embodiment, Figure 5 is another structural schematic view of the connection between the lifting assembly 1 and the telescopic mechanism 2 provided in the embodiment.

[0133] In an embodiment, the control structure further includes a telescopic mechanism 2, which is connected to the lifting assembly 1 and is used to drive the cleaning unit 3 to extend or retract relative to the cleaning device.

[0134] The control structure provided in the embodiment can make the cleaning unit 3 be accommodated in the shell of the cleaning device when the cleaning unit 3 is not needed to clean the corner of the house, avoid the cleaning unit 3 from affecting the movement of the cleaning device when the cleaning unit 3 is extended out of the shell, and also have a protective effect on the cleaning unit 3.

[0135] As to the telescopic mechanism 2, in one embodiment, the telescopic mechanism 2 is connected with the cleaning device through the lifting assembly 1 at one end, and the cleaning unit 3 is connected with the other end of the telescopic mechanism 2, and the lifting assembly 1 is used to drive the telescopic mechanism 2 and the cleaning unit 3 to be lifted relative to the cleaning device; in another embodiment, the lifting assembly 1 is connected with the cleaning device through the telescopic mechanism 2, and the telescopic mechanism 2 is used to drive the lifting assembly 1 and the cleaning unit 3 to be extended or retracted relative to the cleaning device. Please refer to Figure 6 , which shows that the telescopic mechanism 2 is connected with the lifting assembly 1, and the lifting assembly 1 is connected with the cleaning unit 3.

[0136] As to the telescopic mechanism 2, the specific structure of the telescopic mechanism 2 is described below by taking the example that the lifting assembly 1 is connected with the cleaning device through the telescopic mechanism 2, and the telescopic mechanism 2 is used to drive the lifting assembly 1 and the cleaning unit 3 to be extended or retracted relative to the cleaning device.

[0137] In the example based on the lifting driving device including the driving motor 14, the transmission part 15 and the transmission shell 16, the telescopic mechanism 2 is connected with the driving motor 14 of the lifting driving device.

[0138] Preferably, the telescopic mechanism 2 drives the lifting assembly 1 and the cleaning unit 3 to move along the horizontal direction.

[0139] The control structure provided in the embodiment can be applied to the cleaning device, the lifting assembly 1 is connected with the cleaning unit 3, the telescopic mechanism 2 is connected with the lifting driving device, and the telescopic mechanism 2 is connected with the shell of the cleaning device.

[0140] When the cleaning unit 3 is needed to clean the corner of the house, the telescopic mechanism 2 is controlled to move, so that the cleaning unit 3 stored in the shell of the cleaning device is extended out of the shell of the cleaning device, and then the telescopic mechanism 2 is controlled to stop moving, the lifting driving device of the lifting assembly 1 is controlled to move, so that the lifting assembly 1 drives the cleaning unit 3 to move from the predetermined high position to the low position, when the cleaning unit 3 is located at the low position, the lifting driving device is controlled to move, so that the lifting assembly 1 drives the cleaning unit 3 to rotate, so as to clean the corner of the house; when the cleaning unit 3 is not needed to clean the corner of the house, the lifting assembly 1 can drive the cleaning unit 3 to move upward to the predetermined high position, so that the cleaning unit 3 is not in contact with the ground, when the cleaning unit 3 is located at the predetermined high position, the telescopic mechanism 2 is controlled to move, so that the telescopic mechanism 2 drives the lifting assembly 1 and the cleaning unit 3 to move in the direction of extending into the shell of the cleaning device, so that the cleaning unit 3 is stored in the shell of the cleaning device.

[0141] Alternatively, when the cleaning unit 3 is needed to clean the corner of the house, the telescopic mechanism 2 and the lifting assembly 1 can be controlled to move at the same time, the telescopic mechanism 2 makes the cleaning unit 3 stored in the shell of the cleaning device extend out of the shell of the cleaning device, and the lifting assembly 1 drives the cleaning unit 3 to move from the predetermined high position to the low position; when the cleaning unit 3 is not needed to clean the corner of the house, the telescopic mechanism 2 and the lifting assembly 1 can be controlled to move at the same time, the telescopic mechanism 2 drives the lifting assembly 1 and the cleaning unit 3 to move in the direction of extending into the shell of the cleaning device, and the lifting assembly 1 can drive the cleaning unit 3 to move upward to the predetermined high position.

[0142] The control structure provided by the embodiment can make the cleaning unit 3 be stored in the shell of the cleaning device when the cleaning unit 3 is not needed to clean the corner of the house, avoid the influence of the extension of the cleaning unit 3 out of the shell on the movement of the cleaning device, and also has a protective effect on the cleaning unit 3.

[0143] Regarding the structure of the telescopic mechanism 2, in one embodiment, please refer to Figure 6 The telescopic mechanism 2 includes a translation driving motor 21, an intermediate transmission assembly 22 and a screw assembly 23, the screw assembly 23 includes a screw rod 231 and a nut part 232 threadedly connected with the screw rod 231, the translation driving motor 21 is connected with the intermediate transmission assembly 22, the intermediate transmission assembly 22 is connected with the screw rod 231, and the lifting driving device is connected with the nut part 232.

[0144] Please refer to Figure 5, it is shown that the translation driving motor 21, the intermediate transmission assembly 22 and the screw rod assembly 23, the screw rod assembly 23 includes a screw rod 231 and a nut part 232, when the translation driving motor 21 acts, the translation driving motor 21 drives the screw rod 231 to rotate through the intermediate transmission assembly 22, when the screw rod 231 rotates, the nut part 232 moves along the length extension direction of the screw rod 231, the nut part 232 is connected with the driving motor 14, when the nut part 232 moves, it drives the lifting assembly 1 and the cleaning unit 3 to move to the direction of extending into the shell of the cleaning equipment or to the direction of extending out of the shell of the cleaning equipment.

[0145] Specifically, the nut part 232 reciprocates along the screw rod 231, that is, the nut part 232 repeatedly moves between the first position and the second position of the screw rod 231, when the nut part 232 is located at the first position of the screw rod 231, the lifting assembly 1 and the cleaning unit 3 are located in the shell of the cleaning equipment, when the nut part 232 is located at the second position of the screw rod 231, the cleaning unit 3 is located outside the shell of the cleaning equipment. When the translation driving motor 21 rotates forward, the nut part 232 is moved along the length direction of the screw rod 231 from the first position to the second position; when the translation driving motor 21 reversely rotates, the nut part 232 is moved along the length direction of the screw rod 231 from the second position to the first position.

[0146] Please refer to Figure 6 , the telescopic mechanism 2 further includes a translation housing 29, the intermediate transmission assembly 22 and the screw rod assembly 23 are located in the translation housing 29 to protect and support the intermediate transmission assembly 22 and the screw rod assembly 23. Part of the structure of the nut part 232 extends out of the translation housing 29 and is connected with the driving motor 14 through the avoiding hole on the translation housing 29, at the same time, the avoiding hole is a strip-shaped hole to not affect the reciprocating movement of the nut part 232 along the screw rod 231.

[0147] The screw rod assembly 23 further includes a guide rail 27, please refer to Figure 6 , the guide rail 27 is shown. The guide rail 27 passes through the nut part 232, both ends of the guide rail 27 are supported on the translation housing 29, the guide rail 27 is parallel to the screw rod 231, when the nut part 232 moves along the screw rod 231, the nut part 232 moves along the guide rail 27 at the same time.

[0148] In this embodiment, the telescopic mechanism 2 has simple structure and stable transmission, which is beneficial to the adjustment of the position of the cleaning unit 3; in addition, when the screw rod assembly 23 is used to convert the rotary motion into linear motion, the motion of the cleaning unit 3 is stable and has high reliability.

[0149] As to the structure of the telescopic mechanism 2, in another embodiment, the telescopic mechanism 2 comprises a translation driving motor 21 and a screw rod assembly 23, the screw rod assembly 23 comprises a screw rod 231 and a nut component 232 threadedly connected with the screw rod 231, the translation driving motor 21 is connected with the screw rod 231, and the lifting driving device is connected with the nut component 232. When the translation driving motor 21 operates, the translation driving motor 21 drives the screw rod 231 to rotate, and the screw rod 231 rotates to drive the nut component 232 to move along the length extension direction of the screw rod 231. The nut component 232 is connected with the driving motor 14, and the nut component 232 moves to drive the lifting assembly 1 and the cleaning unit 3 to move towards the direction of extending into the cleaning equipment shell or the direction of extending out of the cleaning equipment shell.

[0150] As to the intermediate transmission assembly 22, it can be a belt wheel structure, for example, the translation driving motor 21 is connected with a first belt wheel, the screw rod 231 of the screw rod assembly 23 is connected with a second belt wheel, and the first belt wheel and the second belt wheel are connected through a transmission belt; or, in an embodiment, the intermediate transmission assembly 22 comprises a first intermediate gear 221 and a second intermediate gear 222, the output shaft of the translation driving motor 21 is connected with the second intermediate gear 222, the first intermediate gear 221 and the second intermediate gear 222 are engaged, and the first intermediate gear 221 is connected with one end of the screw rod 231. When the translation driving motor 21 operates, the second intermediate gear 222 is driven to rotate, the second intermediate gear 222 drives the first intermediate gear 221 to rotate, and the first intermediate gear 221 drives the screw rod 231 to rotate; or, in an embodiment, please refer to Figure 6 , the intermediate transmission assembly 22 comprises a first intermediate gear 221, a second intermediate gear 222 and a third intermediate gear set 223, the output shaft of the translation driving motor 21 is connected with the second intermediate gear 222, and the third intermediate gear set 223 is arranged between the first intermediate gear 221 and the second intermediate gear 222. The third intermediate gear set 223 comprises two coaxially arranged gears, one of which is a large gear engaged with the second intermediate gear 222, and the other of which is a small gear engaged with the first intermediate gear 221.

[0151] Please refer to Figure 6 , the first intermediate gear 221 is connected with one end of the screw rod 231, a rotating shaft is arranged at the end of the first intermediate gear 221 away from the screw rod 231, a bearing member is arranged on the rotating shaft to be supported on the translation shell 29, and a bearing member is arranged at the end of the screw rod 231 away from the first intermediate gear 221 to be supported on the translation shell 29.

[0152] The second intermediate gear 222 is a pinion gear, and the first intermediate gear 221 is a gear wheel, and the first intermediate gear 221 and the second intermediate gear 222 form a reduction gear set, and the reduction gear set reduces the rotation speed, so that the torque of the output shaft is increased, and a larger load can be driven.

[0153] As described above, the nut member 232 repeatedly moves between the first position and the second position of the screw rod 231, and in an embodiment, the telescopic mechanism 2 further comprises a detection device for detecting the moving position of the nut member 232, and the detection device and the translation driving motor 21 are both electrically connected to the controller of the control structure, and the detection device is used to detect the position signal of the nut member 232, and when the controller receives the signal transmitted by the detection device, the controller controls the translation driving motor 21 to stop working, so as to limit the stroke of the movement of the nut member 232.

[0154] Specifically, when the nut member 232 moves to the first position of the screw rod 231, the detection device detects the nut member 232, and the detection device transmits a signal to the controller, and the controller controls the translation driving motor 21 to stop working; when the nut member 232 moves to the second position of the screw rod 231, the detection device detects the nut member 232, and the detection device transmits a signal to the controller, and the controller controls the translation driving motor 21 to stop working.

[0155] As described above, the nut member 232 repeatedly moves between the first position and the second position of the screw rod 231, and in another embodiment, the controller controls the time when the translation driving motor 21 works, and when the working time of the translation driving motor 21 reaches the set time, the controller controls the translation driving motor 21 to stop working, for example, when it is needed to move the nut member 232 from the first position to the second position of the screw rod 231, the controller controls the translation driving motor 21 to work for a period of time, and when the working time of the translation driving motor 21 reaches the set time, the controller controls the translation driving motor 21 to stop working, at this time, the nut member 232 is just moved to the second position of the screw rod 231; when it is needed to move the nut member 232 from the second position to the first position of the screw rod 231, the controller controls the translation driving motor 21 to work for a period of time, and when the working time of the translation driving motor 21 reaches the set time, the controller controls the translation driving motor 21 to stop working, at this time, the nut member 232 is just moved to the first position of the screw rod 231.

[0156] As to the detecting device, in an embodiment, the detecting device comprises a first detecting component 24 and a second detecting component 25, the first detecting component 24 and the second detecting component 25 are spaced along the length direction of the screw rod 231, and the detecting portion 26 is arranged on the nut component 232, when the nut component 232 is located at the first position, the detecting portion 26 triggers the first detecting component 24, and when the nut component 232 is located at the second position, the detecting portion 26 triggers the second detecting component 25.

[0157] Please refer to Figure 6 , the first detecting component 24 and the second detecting component 25 are shown, when the nut component 232 is located at the first position, the detecting portion 26 triggers the first detecting component 24, the first detecting component 24 transmits a signal to the controller, and the controller controls the translational driving motor 21 to stop working; when the nut component 232 is located at the second position, the detecting portion 26 triggers the second detecting component 25, the second detecting component 25 transmits a signal to the controller, and the controller controls the translational driving motor 21 to stop working.

[0158] In this embodiment, the first detecting component 24 and the second detecting component 25 cooperate with the detecting portion 26, so as to realize the repeated movement of the nut component 232 between the first position and the second position of the screw rod 231.

[0159] Specifically, the first detecting component 24 is a photoelectric switch, a micro switch or a Hall switch; the second detecting component 25 is a photoelectric switch, a micro switch or a Hall switch; so as to realize that the first detecting component 24 and the second detecting component 25 can accurately detect the position of the detecting portion 26.

[0160] The first detecting component 24 is the same as the second detecting component 25, or the first detecting component 24 is different from the second detecting component 25, preferably, the first detecting component 24 and the second detecting component 25 are the same components. For example, the first detecting component 24 and the second detecting component 25 can both be photoelectric switches. Or, the first detecting component 24 and the second detecting component 25 can both be Hall switches, at this time, the detecting portion 26 is a magnetic piece. The Hall switch integrates a Hall element and a signal processing circuit inside, when an external magnetic field acts on the Hall element, the Hall element generates a Hall voltage, the signal processing circuit amplifies, compares and processes the Hall voltage, when the magnetic field intensity reaches a certain threshold, the output state changes, realizing the function of the switch.

[0161] Please refer to ​ , in a specific example, the detecting device further comprises a control board 28, the first detecting component 24 and the second detecting component 25 are both connected with the control board 28, the control board 28 is connected with the controller, the control board 28 is fixed on the outer side of the translational shell 29, and the first detecting component 24 and the second detecting component 25 extend into the translational shell 29.

[0162] In particular, the control panel 28 is detachably connected to the translation housing 29.

[0163] In a specific example, the controller of the control structure is a control device of the cleaning apparatus.

[0164] The cleaning apparatus provided by the embodiment comprises a cleaning unit 3 and the control structure provided by any of the above embodiments, and the cleaning unit 3 is connected to the lifting assembly 1 of the control structure.

[0165] The cleaning apparatus comprises a housing, and the mop-retracting structure is connected to the housing. When the cleaning unit 3 is not needed to clean the corners of the house, the lifting assembly 1 drives the cleaning unit 3 to rotate upward to a predetermined high position, so that the cleaning unit 3 is not in contact with the ground. When the cleaning unit 3 is needed to clean the corners of the house, the lifting assembly 1 drives the cleaning unit 3 to rotate downward to a low position, so that the cleaning unit 3 is in contact with the ground. When the cleaning unit 3 rotates downward to the low position and continues to rotate, the lifting assembly 1 only drives the cleaning unit 3 to rotate, without driving the cleaning unit 3 to move along the height direction, so as to clean the ground.

[0166] In the example in which the control structure further comprises the telescopic mechanism 2, when the cleaning unit 3 is needed to clean the corners of the house, the telescopic mechanism 2 is controlled to act, so that the cleaning unit 3 stored in the housing of the cleaning apparatus is extended out of the housing of the cleaning apparatus, and then the telescopic mechanism 2 is controlled to stop acting, and the lifting drive device of the lifting assembly 1 is controlled to act, so that the lifting assembly 1 drives the cleaning unit 3 to move downward from the predetermined high position to the low position. When the cleaning unit 3 is located at the low position, the lifting drive device is controlled to act, so that the lifting assembly 1 drives the cleaning unit 3 to rotate, so as to clean the corners of the house. When the cleaning unit 3 is not needed to clean the corners of the house, the lifting assembly 1 can drive the cleaning unit 3 to move upward to the predetermined high position, so that the cleaning unit 3 is not in contact with the ground. When the cleaning unit 3 is located at the predetermined high position, the telescopic mechanism 2 is controlled to act, so that the telescopic mechanism 2 drives the lifting assembly 1 and the cleaning unit 3 to move in the direction of being extended into the housing of the cleaning apparatus, so that the cleaning unit 3 is stored in the housing of the cleaning apparatus.

[0167] Alternatively, when the cleaning unit 3 is needed to clean the corners of the house, the telescopic mechanism 2 and the lifting assembly 1 can be simultaneously controlled to act. The telescopic mechanism 2 drives the cleaning unit 3 stored in the housing of the cleaning apparatus to extend out of the housing of the cleaning apparatus, and the lifting assembly 1 drives the cleaning unit 3 to move downward from the predetermined high position to the low position. When the cleaning unit 3 is not needed to clean the corners of the house, the telescopic mechanism 2 and the lifting assembly 1 can be simultaneously controlled to act. The telescopic mechanism 2 drives the lifting assembly 1 and the cleaning unit 3 to move in the direction of being extended into the housing of the cleaning apparatus, and the lifting assembly 1 drives the cleaning unit 3 to move upward to the predetermined high position.

[0168] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A control structure, characterized by, The lifting assembly (1) connected with the cleaning unit (3) of the cleaning device, the lifting assembly (1) comprising: Lifting driving device; Lifting device comprising a lifting rod (11) connected with the lifting driving device and a matching component (12) threadedly connected with the lifting rod (11), the lifting driving device being capable of driving the cleaning unit (3) to lift.

2. The control structure of claim 1, wherein, The control structure further comprises a telescopic mechanism (2) connected with the lifting assembly (1), the telescopic mechanism (2) being used to drive the cleaning unit (3) to extend or retract relative to the cleaning device.

3. The control structure of claim 2, wherein, The lifting assembly (1) is connected with the cleaning device through the telescopic mechanism (2), the telescopic mechanism (2) being used to drive the lifting assembly (1) and the cleaning unit (3) to extend or retract relative to the cleaning device; or, The telescopic mechanism (2) is connected with the cleaning device at one end through the lifting assembly (1), the cleaning unit (3) being replaced by being connected at the other end of the telescopic mechanism (2), the lifting assembly (1) being used to drive the telescopic mechanism (2) and the cleaning unit (3) to lift relative to the cleaning device.

4. The control structure of claim 1, wherein, The lifting assembly (1) further comprises a damping component (13) contacting the matching component (12), when the lifting rod (11) rotates downward to a low position relative to the matching component (12), the matching component (12) rotates together with the lifting rod (11) against the force of the damping component (13).

5. The control structure of claim 4, wherein, The lifting driving device comprises a driving motor (14), a transmission part (15) and a transmission housing (16), the driving motor (14) being connected with the lifting rod (11) through the transmission part (15), the transmission part (15) being located in the transmission housing (16); The lifting device comprises a lifting housing (17) located at one side of the transmission housing (16) and connected with the transmission housing (16), the matching component (12) being located in the lifting housing (17), the lifting rod (11) passing through the matching component (12), one end of the lifting rod (11) being connected with the transmission part (15) and the other end being used to be connected with the cleaning unit (3), the damping component (13) being located between the transmission housing (16) and the matching component (12) or between the lifting housing (17) and the matching component (12).

6. The control structure of claim 5, wherein, The matching component (12) comprises a matching main body (121) and a connecting plate (122), the connecting plate (122) being sleeved on the matching main body (121) and connected with the matching main body (121), the lifting rod (11) passing through the matching main body (121) and being threadedly connected with the matching main body (121); The transmission housing (16) comprises a matching part (161) opposite to the connecting plate (122), and the damping part (13) is located between the matching part (161) and the connecting plate (122).

7. The control structure of claim 6, wherein, The damping part (13) comprises an elastic member (131) and a damping ring (132), the damping ring (132) is sleeved on the matching body part (121) and is in contact with the connecting plate (122), the elastic member (131) is extruded between the damping ring (132) and the matching part (161), and the matching body part (121) is extruded in the lifting housing (17) under the action of the damping part (13).

8. The control structure of claim 6, wherein, A step structure is formed on the lifting housing (17), the connecting plate (122) is located between a step surface (171) of the step structure and the damping part (13), one end of the matching part (12) away from the transmission housing (16) is provided with a bearing (18), the bearing (18) is located in the lifting housing (17), and the lifting rod (11) passes through the bearing (18).

9. A control structure according to any one of claims 5 to 8, wherein, The transmission part (15) comprises a terminal gear (151) connected with the lifting rod (11), the lifting rod (11) is inserted into a gear hole on the terminal gear (151), one of the lifting rod (11) and the gear hole is provided with a guide groove (1511), and the other is provided with a guide protrusion, the guide protrusion is located in the guide groove (1511), and the length direction of the guide groove (1511) is parallel to the axis direction of the gear hole.

10. The control structure of claim 9, wherein, The transmission part (15) further comprises a worm (152), a turbine (153) and a reduction gear set, the driving motor (14) is connected with the worm (152), the worm (152) is engaged with the turbine (153), and the turbine (153) is in transmission connection with the terminal gear (151) through the reduction gear set.

11. The control structure of any one of claims 1-8, wherein, The control structure further comprises a detection sensor (19) and a controller, the detection sensor (19) and the lifting driving device are electrically connected with the controller, when the lifting driving device drives the lifting rod (11) to rotate and move up to a set high position relative to the matching part (12), the detection sensor (19) detects a position signal of the lifting rod (11) and transmits the signal to the controller, and the controller can control the lifting driving device to stop working according to the signal transmitted by the detection sensor (19).

12. The control structure of any one of claims 1-8, wherein, One of the inner side surface of the matching part (12) and the outer side surface of the lifting rod (11) is provided with an internal thread (123), and the other is provided with a matching protrusion (111), the number of the internal thread (123) is more than one, and each internal thread (123) corresponds to more than one matching protrusion (111).

13. The control structure of claim 12, wherein, One end of the internal thread (123) is formed with an abutting end face (1231), which is in contact with the matching protrusion (111) when the lifting rod (11) is in a low position.

14. The control structure of claim 2, wherein, The telescopic mechanism (2) comprises a translation driving motor (21), an intermediate transmission assembly (22) and a screw rod assembly (23), the screw rod assembly (23) comprises a screw rod (231) and a nut component (232) in threaded connection with the screw rod (231), the translation driving motor (21) is connected with the intermediate transmission assembly (22), the intermediate transmission assembly (22) is connected with the screw rod (231), and the lifting driving device is connected with the nut component (232).

15. The control structure of claim 14, wherein, The telescopic mechanism (2) further comprises a detection device for detecting the moving position of the nut component (232), the detection device and the translation driving motor (21) are both electrically connected with a controller of the control structure, the detection device is used for detecting a position signal of the nut component (232), and when the controller receives the signal transmitted by the detection device, the controller controls the translation driving motor (21) to stop action, so as to limit the stroke of the nut component (232) in movement.

16. The control structure of claim 15, wherein, The detection device comprises a first detection component (24) and a second detection component (25), the first detection component (24) and the second detection component (25) are spaced apart along the length direction of the screw rod (231), a detection part (26) is arranged on the nut component (232), the detection part (26) triggers the first detection component (24) when the nut component (232) is in a first position, and the detection part (26) triggers the second detection component (25) when the nut component (232) is in a second position.

17. A cleaning apparatus, characterized by The control structure comprises a cleaning unit (3) and the control structure according to any one of claims 1-16, and the cleaning unit (3) is connected with the lifting assembly (1) of the control structure.

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