CN220056149U - Lifting device and cleaning equipment - Google Patents

Abstract

The embodiment of the utility model discloses a lifting device and cleaning equipment, wherein the lifting device comprises a lifting component, a protection component and a driving component, the driving component outputs driving force through the protection component in the process of driving an object to lift by using the lifting device, so that the object is driven to lift or descend by the lifting component, after the object is lifted or lowered in place, the object exerts force on the protection component through the lifting component under the condition that the object is displaced by external force, the protection component is separated from the driving component, and under the condition, the driving component and the lifting component cannot generate rigid mechanical contact, the structures of the lifting component and the driving component cannot be damaged, the service life of the lifting device can be prolonged, the lifting control precision of the lifting device on the object can be improved, and the user experience can be improved.

Description

Lifting device and cleaning equipment

Technical Field

The embodiment of the utility model relates to the technical field of cleaning, in particular to a lifting device and cleaning equipment.

Background

In the mechanical field, the lifting device is often used to drive the object to rise or fall, however, after the object rises or falls, the object pulls the transmission component in the lifting device under the condition that the object receives an external force, which easily causes the damage of the internal structure of the lifting device. Taking cleaning device as an example, often can use elevating gear to drive the brush body of cleaning in the conventional art and go up and down, when the user applys external force for the brush body, pulls the brush body, makes elevating gear's inner structure damage easily, and then influences cleaning device's use, user experience reduces.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first aspect of the utility model provides a lifting device.

A second aspect of the utility model provides a cleaning apparatus.

In view of this, a first aspect of an embodiment of the present utility model provides a lifting device, including:

a lifting assembly;

the protection component is connected with the lifting component;

the driving assembly is connected with the lifting assembly through the protection assembly and is used for driving an object to ascend or descend;

wherein, under the condition that the object is moved by external force, the protection component is separated from the driving component.

In a possible embodiment, the protection assembly comprises:

the protection disc is connected to the lifting assembly;

and the elastic piece is connected with the protection disc and is used for applying elastic force to the protection disc so as to enable the protection disc to be connected with the driving assembly.

In a possible embodiment, the protective disk is formed with engagement teeth on a side facing the drive assembly, the protective disk engaging the drive assembly with the protective disk abutting the drive assembly.

In a possible implementation manner, the driving assembly is used for driving the protection disc to rotate along a first direction or a second direction so as to drive the lifting assembly;

the object is raised in the case of rotation of the protective disk in a first direction and lowered in the case of rotation of the protective disk in a second direction;

wherein, the end face tooth angle of the meshing teeth in the first direction is greater than the end face tooth angle of the meshing teeth in the second direction.

In one possible embodiment, the lifting assembly comprises:

the rotating piece is connected with the protection component;

one end of the flexible connecting piece is connected with the rotating piece, and the other end of the flexible connecting piece is connected with the object;

wherein, under the condition that the rotating piece rotates, the flexible connecting piece can be wound on the rotating piece;

wherein, the rotation piece and the protection disk of the protection component are of an integrated structure.

In one possible embodiment, the drive assembly comprises:

the worm wheel is connected to the lifting assembly through the protection assembly;

a worm connected to the worm wheel;

and the driving piece is connected with the worm.

In a possible embodiment, the lifting device further comprises:

a frame;

the position identification component is arranged on the rack and is used for identifying the position of the lifting component.

In one possible embodiment, the location identification component comprises:

one end of the rotating arm is hinged to the frame;

the first bulge is arranged at the other end of the rotating arm;

the second protruding part is arranged on the lifting assembly;

the switch is arranged on one side of the rotating arm, which is away from the lifting assembly;

wherein the switch is triggered by the rotating arm with the second projection in contact with the first projection.

In a possible embodiment, the location identification component further comprises:

the resetting piece is connected with the rotating arm; and/or

The buffer piece is arranged on the rotating arm and is positioned between the rotating arm and the switch; and/or

The swivel arm is made of an elastic material.

According to a second aspect of an embodiment of the present utility model there is provided a cleaning device comprising:

the lifting device according to any one of the above-mentioned aspects;

and the cleaning assembly is connected with the lifting assembly of the lifting device.

In a possible embodiment, the cleaning device further comprises:

the cleaning assembly comprises a mounting frame and a cleaning brush, the cleaning brush is rotatably connected to the mounting piece, one end of the mounting frame is hinged to the housing, and the lifting assembly is connected to the mounting frame.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

the lifting device provided by the embodiment of the utility model comprises the lifting component, the protection component and the driving component, wherein in the process of driving an object to lift by using the lifting device, the driving component outputs driving force through the protection component so as to drive the object to lift or descend by the lifting component, and after the object lifts or descends in place, under the condition that the object is displaced by external force, the object exerts force on the protection component through the lifting component, the protection component is separated from the driving component, and under the condition, rigid mechanical contact can not be generated between the driving component and the lifting component, the structures of the lifting component and the driving component can not be damaged, the service life of the lifting device can be prolonged, the control precision of the lifting device on lifting of the object can be improved, and the user experience can be improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic structural view of a first angle of a lifting device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a protective assembly of a lifting device according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a second angle of a lifting device according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a third angle of a lifting device according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a fourth angle of a lifting device according to an embodiment of the present utility model;

fig. 6 is a schematic structural view of a fifth angle of a lifting device according to an embodiment of the present utility model;

FIG. 7 is a schematic block diagram of a first angle of a cleaning apparatus according to one embodiment of the present utility model;

FIG. 8 is a schematic block diagram of a second angle of a cleaning apparatus according to one embodiment of the present utility model;

FIG. 9 is a schematic block diagram of a third angle of a cleaning apparatus according to one embodiment of the present utility model;

FIG. 10 is a schematic block diagram of a fourth angle of a cleaning apparatus according to one embodiment of the present utility model;

fig. 11 is a schematic structural diagram of a lifting device according to an embodiment of the present utility model when the lifting device is hidden.

The correspondence between the reference numerals and the component names in fig. 1 to 11 is:

100 lifting devices;

110 lifting components, 120 protection components, 130 driving components, 140 racks, 150 position identification components, 210 cleaning components and 220 shells;

111 rotation piece, 112 flexible connecting piece, 113 sliding block, 121 protection disk, 122 elastic piece, 131 worm wheel, 132 worm, 133 driving piece, 151 rotating arm, 152 first bulge, 153 second bulge, 154 switch, 155 buffer piece;

1211 meshing teeth;

211 mounting frame, 212 cleaning brush.

Detailed Description

In order to better understand the above technical solutions, the following detailed description of the technical solutions of the embodiments of the present utility model is made by using the accompanying drawings and the specific embodiments, and it should be understood that the specific features of the embodiments of the present utility model are detailed descriptions of the technical solutions of the embodiments of the present utility model, and not limit the technical solutions of the present utility model, and the technical features of the embodiments of the present utility model may be combined with each other without conflict.

As shown in fig. 1 to 6, a lifting device 100 according to a first aspect of an embodiment of the present utility model is provided, including: a lifting assembly 110; the protection component 120 is connected to the lifting component 110; the driving assembly 130, the driving assembly 130 is connected to the lifting assembly 110 through the protection assembly 120, and the lifting assembly 110 is used for driving the object to rise or fall; when the object is moved by an external force, the protection component 120 is separated from the driving component 130.

In the process of using the lifting device 100 to drive an object to lift, the driving assembly 130 outputs driving force through the protecting assembly 120, so that the lifting device 110 can drive the object to lift or descend, and after the object lifts or descends in place, the object applies force on the protecting assembly 120 through the lifting assembly 110 under the condition that the object is displaced by external force, the protecting assembly 120 is separated from the driving assembly 130, and under the condition that the driving assembly 130 and the lifting assembly 110 are not in rigid mechanical contact, the structures of the lifting assembly 110 and the driving assembly 130 are not damaged, the service life of the lifting device 100 can be prolonged, the control precision of the lifting device 100 on lifting the object can be improved, and the user experience can be improved.

Taking the lifting device 100 provided by the embodiment of the utility model as an example applied to the cleaning equipment, the brush body of the cleaning equipment can be connected to the lifting assembly 110, and the cleaning equipment can have two working states in the use process, one of which is that the brush body is lifted, in which case the cleaning equipment does not need to execute cleaning operation; alternatively, the brush body is lowered, the brush body can be contacted with the surface to be cleaned, and the cleaning device can execute the cleaning task. According to the lifting device 100 provided by the embodiment of the utility model, in consideration of the fact that under some working conditions, a user may pull the brush body to drive the brush body to ascend or descend, especially, some users may pull the brush body to descend, in the process of displacement of the brush body, the force of the brush body is transmitted to the protection component 120 through the lifting component 110, the protection component 120 can be separated from the driving component 130, and on the basis that the lifting component 110 cannot be in hard mechanical contact with the driving component 130 under the condition that the user pulls the brush body, the lifting component 110 and the driving component 130 can be prevented from being worn, and the service life of the lifting component 110 can be prolonged.

As shown in fig. 1 and 2, in one possible embodiment, the protection component 120 includes: a protection plate 121, the protection plate 121 being connected to the lifting assembly 110; the elastic member 122 is connected to the protection disc 121, and the elastic member 122 is used to apply elastic force to the protection disc 121 so that the protection disc 121 is connected to the driving assembly 130.

In this technical solution, further provided is a structural component of the protection component 120, where the protection component 120 may include a protection disc 121 and an elastic member 122, and when an object connected to the lifting device 100 is not subjected to an external force, the elastic member 122 may apply an elastic force to the protection disc 121, so that the protection disc 121 is connected to the driving component 130, and in this case, the driving component 130 outputs a driving force to drive the lifting component 110, and the lifting component 110 may drive the object to rise or fall; under the condition that an object moves by an external force, the force exerted by the object is transmitted to the protection disc 121 through the lifting assembly 110, and the force drives the protection disc 121 to overcome the elastic force of the elastic piece 122, so that the protection disc 121 is separated from the driving assembly 130, and under the condition, rigid mechanical contact between the driving assembly 130 and the lifting assembly 110 is not generated, the structures of the lifting assembly 110 and the driving assembly 130 are not damaged, the service life of the lifting device 100 can be prolonged, the control precision of the lifting device 100 on lifting of the object can be improved, and the user experience can be improved; further, under the condition that the object loses the external force, the elastic member 122 applies the elastic force to the protection disc 121 again, so that the protection disc 121 abuts against the driving assembly 130, the connection relationship between the protection disc 121 and the driving assembly 130 is established again, and under the condition that the driving assembly 130 is opened, the object can be driven to ascend or descend through the lifting assembly 110 again.

As shown in fig. 1 and 2, in one possible embodiment, the protection disk 121 is formed with engagement teeth 1211 toward the side of the drive assembly 130, and the protection disk 121 is engaged with the drive assembly 130 in the case where the protection disk 121 abuts against the drive assembly 130.

In this technical solution, further a structural style of the protection disc 121 is provided, where the protection disc 121 is formed with engaging teeth 1211 towards one side of the driving assembly 130, and under the condition that an object connected with the lifting device 100 is not subjected to external force, the elastic member 122 can apply elastic force to the protection disc 121, the engaging teeth 1211 on the protection disc 121 can engage with the driving assembly 130, so that the protection disc 121 is connected with the driving assembly 130, and in this case, the driving assembly 130 can output driving force to drive the lifting assembly 110, and the lifting assembly 110 can drive the object to rise or fall; when the object moves under the external force, the force exerted by the object is transmitted to the protection disc 121 through the lifting assembly 110, and the force drives the protection disc 121 to overcome the elastic force of the elastic piece 122, so that the meshing teeth 1211 on the protection disc 121 are separated from the driving assembly 130, and the protection disc 121 can be separated from the driving assembly 130, and under the condition, the driving assembly 130 and the lifting assembly 110 can not generate rigid mechanical contact, the structures of the lifting assembly 110 and the driving assembly 130 can not be damaged, the service life of the lifting device 100 can be prolonged, the control precision of the lifting device 100 on lifting of the object can be improved, and the user experience can be improved; further, when the object loses the external force, the elastic member 122 applies the elastic force to the protection disc 121 again, so that the protection disc 121 abuts against the driving assembly 130, the engaging teeth 1211 on the protection disc 121 can engage with the driving assembly 130 again, the connection relationship between the protection disc 121 and the driving assembly 130 is established again, and the object can be driven to rise or fall through the lifting assembly 110 again when the driving assembly 130 is opened.

In a possible embodiment, the driving assembly 130 is configured to rotate the protection disc 121 in the first direction or the second direction to drive the lifting assembly 110; the object rises with the protection disk 121 rotated in the first direction, and the object descends with the protection disk 121 rotated in the second direction; wherein the end face tooth angle of the meshing tooth 1211 in the first direction is greater than the end face tooth angle of the meshing tooth 1211 in the second direction.

In this technical solution, the working mode of the driving assembly 130 and the structural composition of the engaging teeth 1211 are further provided, when the driving assembly 130 drives the protection disc 121 to rotate along the first direction, the lifting assembly 110 can drive the object to lift, under the working condition, the protection assembly 120 arranged between the lifting assembly 110 and the driving assembly 130 can bear larger torque, so that the engaging teeth 1211 face the end face in the first direction at a larger angle, and the arrangement can make the protection disc 121 bear better large torque, thereby prolonging the service life of the protection assembly 120; when the driving assembly 130 drives the protection disc 121 to rotate along the second direction, the lifting assembly 110 can drive the object to descend, and the protection assembly 120 arranged between the lifting assembly 110 and the driving assembly 130 can bear smaller torque under the working condition, so that the angle of the end face teeth of the meshing teeth 1211 facing the first direction is smaller, the running resistance of the driving assembly 130 can be reduced, and the driving efficiency is improved.

In some examples, the first direction may be counter-clockwise and the second direction may be clockwise, the worm gear 131 and worm 132 of the lifting assembly 110 coupled to the driving member 133 provide a source of power to top view the rotating member 111 from the top of the rotating member 111, the worm gear 132 rotates as the lifting assembly 110 lifts an object, the worm gear rotates counter-clockwise through the protective disk 121, retracting the flexible connection 112. The protection disk 121 between the worm wheel and the rotating member 111 of the flexible joint 112 is subjected to a large torque, and therefore the end face tooth angle of the meshing teeth 1211 is large. When the lifting device 100 needs to lower the cleaning assembly 210, the driving member 133 is reversed, the flexible connection member 112 is loosened, and the worm wheel transmits less force to the rotation member 111, the protection disk 121 does not need to bear a large torque, and thus the end tooth angle setting is small.

It will be appreciated that the resilient member 122 may be a spring and that the protective torque force of the protective disk 121 is affected by the end tooth angle, the material and the spring pressure. The positive pressure of the spring forms a rotational resistance at the end face tooth position, which is the protection force of the protection disc 121; based on this, the elastic member 122 and the protection disk 121 can prevent the entire lifting device 100 from being subjected to a large torque load to cause damage to the mechanism.

As shown in fig. 1 and 3, in one possible embodiment, the lift assembly 110 includes: a rotating member 111 connected to the protection assembly 120; a flexible connection member 112, one end of the flexible connection member 112 is connected to the rotation member 111, and the other end is connected to the object; wherein, in the case that the rotating member 111 rotates, the flexible connection member 112 can be wound around the rotating member 111; wherein the rotating member 111 and the protection disk 121 of the protection assembly 120 are in an integrated structure.

In this technical solution, there is further provided a structural component of the lifting assembly 110, where the lifting assembly 110 includes an adapter and a flexible connection member 112, and in the working process of the lifting device 100, the driving assembly 130 is connected with the protection assembly 120, the driving assembly 130 drives the protection assembly 120 to rotate, the protection assembly 120 can drive the connection member to rotate, and in the case that the driving assembly 130 drives the protection disc 121 to rotate along the first direction, the flexible connection member 112 will be wound on the rotation member 111, in which case the effective length of the lifting assembly 110 will be reduced, in which case an object connected to the other end of the flexible connection member 112 will be lifted; in case the drive assembly 130 rotates the protective disc 121 in the second direction, the flexible connection part 112 will be stretched via the rotation part 111, in which case the effective length of the lifting assembly 110 will be increased, in which case the object connected to the other end of the flexible connection part 112 will be lowered.

It will be appreciated that the rotating member 111 may be disc-shaped to facilitate the winding of the flexible connection member 112 over the rotating member 111, and that the flexible connection member 112 may be a rope, wire, or cable.

As shown in fig. 2, in this embodiment, in order to facilitate the rotation of the rotating member 111 and protect the driving assembly 130, the rotating member 111 may rotate in synchronization with the protection disc 121, so that the rotating member 111 may be constructed as one body with the protection disc 121 to facilitate the synchronous rotation of the rotating member 111 and the protection disc 121, and also to enhance the strength of the protection disc 121 and the rotating member 111. In the case where the protection disk 121 and the rotating member 111 are integrally formed, the elastic member 122 can also output a force to the protection disk 121 by applying an elastic force to the rotating member 111, thereby facilitating the layout of the elastic member 122.

As shown in fig. 2, it may be understood that the protection disc 121 and the rotating member 111 may be in a split structure, for example, the protection disc 121 may be connected to the rotating member 111 by screws, welding, bonding, or other manners, and the rotating member 111 and the protection disc 121 may be connected by other connectors, so as to adjust the setting position of the protection disc 121, and facilitate sufficient engagement between the protection disc 121 and the driving assembly 130.

As shown in fig. 1 and 4, in one possible embodiment, the drive assembly 130 includes: a worm wheel 131, the worm wheel 131 being connected to the lifting assembly 110 through the protection assembly 120; a worm 132 connected to the worm wheel 131; a driving member 133 connected to the worm 132.

In this technical solution, there is further provided a structural component of the driving assembly 130, where the driving assembly 130 may include a worm wheel 131, a worm 132 and a driving member 133, and in the use process, the driving member 133 outputs a driving force acting on the worm 132, the worm 132 is meshed with the worm wheel 131, the worm wheel 131 can be driven to rotate by rotation of the worm 132, and the worm wheel 131 is connected with the protection assembly 120, so that the protection assembly 120 outputs the driving force acting on the lifting assembly 110. When the object connected with the lifting assembly 110 is subjected to an external force and generates unexpected displacement, the protection assembly 120 is separated from the worm wheel 131 of the driving assembly 130, and based on the fact that hard mechanical contact is not generated between the worm wheel 131 of the driving assembly 130 and the rotating piece 111 of the lifting assembly 110, the structures of the lifting assembly 110 and the driving assembly 130 are not damaged, the service life of the lifting device 100 can be prolonged, the control precision of the lifting device 100 on lifting of the object can be improved, and the user experience can be improved.

In this technical scheme, through worm wheel 131, worm 132 and driving piece 133 as drive assembly 130, can steady output drive force, the ascending or descending of the object of being convenient for, be connected through the meshing tooth 1211 between protection subassembly 120 and the worm wheel 131, protection dish 121 lower extreme is provided with the spring and is regarded as elastic component 122, make the tooth between protection dish 121 and the worm wheel 131 closely laminate, worm 132 can drive worm wheel 131, the further accessible meshing tooth 1211 of worm wheel 131 drives protection dish 121 rotation, and then flexible coupling piece 112 twines or twines in opposite directions for the main brush promotes or descends. When a user pulls an object by hand, the protection disc 121 will be made to rotate along with the flexible connection member 112, and as the worm wheel 131 is difficult to drive the worm 132 to rotate, the joint of the meshing teeth 1211 will be separated, the protection disc 121 will descend, and the teeth at the two ends will be dislocated, so that the worm wheel 131 will not rotate along with the protection disc 121, thereby playing a role in protecting the driving assembly 130.

As shown in fig. 4 and 11, in one possible embodiment, the lifting device 100 further includes: a frame 140; the position identifying component 150 is disposed on the frame 140, and the position identifying component 150 is used for identifying the position of the lifting component 110.

In this technical scheme, the lifting device 100 may further include a frame 140 and a position recognition component 150, and the position of the lifting component 110 may be recognized through the setting of the position recognition component 150, so that the height of the object that is lifted or lowered may be determined, and based on this, accurate control of lifting or lowering of the object may be achieved.

In some examples, the lifting device 100 may further include a controller, where the controller is in communication with the position identifying component 150, and the controller is configured to stop supplying power to the driving component 130 or supply a certain small current to the driving component 130 according to a driving portion control signal sent by the position identifying component 150, so as to keep the rotating member 111 at the current position, thereby realizing accurate control of lifting of the object, and reducing the failure rate.

As shown in fig. 4, 5 and 6, in one possible embodiment, the location identification component 150 comprises: a rotating arm 151, one end of the rotating arm 151 being hinged to the frame 140; a first protrusion 152 provided at the other end of the rotating arm 151; a second protrusion 153 disposed on the elevation assembly 110; a switch 154 disposed on a side of the swivel arm 151 facing away from the lifting assembly 110; wherein the switch 154 is triggered by the rotating arm 151 in a state that the second protrusion 153 is in contact with the first protrusion 152.

In this technical solution, further provide the structure composition of position identification subassembly 150, position identification subassembly 150 can include rocking arm 151, first bulge 152, second bulge 153 and switch 154, when opening drive assembly 130, under the circumstances that drive assembly 130 passed through protection assembly 120 transmission drive power to lifting assembly 110, lifting assembly 110's rotation piece 111 rotates, in the rotation piece 111 pivoted in-process, second bulge 153 can contact with first bulge 152, second bulge 153 and first bulge 152 can drive rocking arm 151 and remove, so that rocking arm 151 carries out the butt with switch 154, in this case, position identification device can discern lifting assembly 110's state, and then the interface realizes the accurate control of object lift, the reduction fault rate.

In one possible implementation, the location identification component 150 further comprises: and a reset member connected to the rotating arm 151.

In this technical solution, the position identifying assembly 150 may further include a reset element, where, by setting the reset element, when the second protrusion 153 is far away from the first protrusion 152 along with the movement of the rotating element 111, the reset element may apply a reset force to the rotating arm 151, so that the rotating arm 151 is reset, so as to be convenient for detecting for the next position identification.

As shown in fig. 4, in one possible embodiment, the location identification component 150 further comprises: a buffer 155 provided on the rotating arm 151 between the rotating arm 151 and the switch 154.

In this technical scheme, the position identifying assembly 150 may further include a buffer member 155, and the rotating arm 151 may be abutted with the switch 154 through the buffer member 155, so that the switch 154 may be prevented from being damaged by hard contact between the rotating arm 151 and the switch 154, and the service life of the switch 154 may be prolonged.

In one possible embodiment, the rotating arm 151 is made of an elastic material.

In this solution, the rotating arm 151 may be directly made of an elastic material, in which case the rotating arm 151 contacts the switch 154, so that the rotating arm 151 is prevented from collapsing the switch 154, and the service life of the switch 154 can be improved.

According to the lifting device 100 provided by the embodiment of the utility model, compared with the photoelectric switch 154 in the prior art, through the arrangement of the push-type position identification assembly 150, the lifting device 100 can be identified with high precision under the working condition of dust, and is beneficial to accurately controlling the lifting device 100, and when the rotating member 111 rotates to a designated position, the rotating member 111 is provided with the second protruding part 153 which pushes the rotating arm 151, so that the switch 154 is triggered. The rocking arm 151 is provided with the reset piece of revolute center, for rocking arm 151 is from pressing the button position and reply to the non-triggering state, and the region that rocking arm 151 pressed the button is provided with buffer 155 simultaneously, adopts the plastic cantilever to press the button promptly, can avoid switch 154 to receive too big power damage, protection button life-span.

In some examples, the driver 133 of the driver assembly 130 may be a motor and the recognition and control logic through the position recognition assembly 150 may include:

normal operating mode:

the motor rotates forward (anticlockwise), the switch 154 of the position identifying assembly 150 is in a state of 0-1-0 (1 represents that the trigger switch 154,0 is not triggered, 010 represents that the rotation bypasses the trigger point), and the motor is stopped and rises to the position;

the motor is reversed (rotated clockwise) and the switch 154 is turned from 0 to 1 to 0, the motor is stopped, and the motor is lowered into position.

Abnormal working conditions:

the switch 154 is initially set to 1, indicating that the object is in an intermediate state (not down or up in place).

The motor rotates positively, the switch 154 is in a state of 1 to 0, the motor is stopped, and the motor rises to a proper position;

the motor is reversed, the state of the switch 154 is changed from 1 to 0, the motor is stopped, and the motor descends to be in place;

through the above-described process, it is possible to transition from the abnormal state to the normal state.

As shown in fig. 7 to 11, a cleaning apparatus according to a second aspect of an embodiment of the present utility model is provided, including: the lifting device 100 according to any one of the above-described aspects; cleaning assembly 210, cleaning assembly 210 is connected to lifting assembly 110 of lifting device 100.

The cleaning device provided by the embodiment of the utility model has all the beneficial effects of the lifting device 100 in the technical scheme because the cleaning device comprises the lifting device 100 in any one of the technical scheme.

According to the cleaning device provided by the embodiment of the utility model, through the arrangement of the lifting assembly 110, the cleaning assembly 210 can be lifted or lowered, so that the cleaning device can have various working states, for example, the cleaning assembly 210 can be lifted completely, the cleaning assembly 210 can be separated from the ground, under the condition, the cleaning device does not need to execute a cleaning task, the cleaning device can be quickly moved, for example, the cleaning assembly 210 can be controlled to be lowered, the cleaning device can execute the cleaning task, and as the descending range of the cleaning assembly 210 of the cleaning device is larger, the abutting effect of the cleaning assembly 210 and the cleaning surface is stronger, and the cleaning effect of the cleaning device is better.

In the cleaning device provided by the embodiment of the utility model, the cleaning component 210 of the cleaning device can be connected to the lifting component 110, so that the cleaning device can have at least two working states in the use process, one of the working states is that the cleaning component 210 is lifted, and the cleaning device does not need to execute cleaning operation under the condition; alternatively, the cleaning assembly 210 is lowered, the brush body can be contacted with the surface to be cleaned, and the cleaning device can perform the cleaning task. In consideration of the lifting device 100 provided in the embodiment of the utility model, under some working conditions, a user may pull the cleaning assembly 210 to drive the cleaning assembly 210 to lift or lower, especially, some users may pull the cleaning assembly 210 to lower the cleaning assembly 210, during the displacement of the cleaning assembly 210, the force of the cleaning assembly 210 is transferred to the protection assembly 120 through the lifting assembly 110, and the protection assembly 120 can be separated from the driving assembly 130, so that under the condition that the user pulls the cleaning assembly 210, the lifting assembly 110 cannot make hard mechanical contact with the driving assembly 130, and abrasion of the lifting assembly 110 and the driving assembly 130 can be avoided, and the service lives of the lifting assembly 110 and the cleaning apparatus can be prolonged.

In a possible embodiment, the cleaning device further comprises: the housing 220, the cleaning assembly 210 includes a mounting frame 211 and a cleaning brush 212, the cleaning brush 212 is rotatably connected to the mounting member, one end of the mounting frame 211 is hinged to the housing 220, and the lifting assembly 110 is connected to the mounting frame 211.

In this technical scheme, cleaning device can also include casing 220, and cleaning subassembly 210 can include mounting bracket 211 and cleaning brush 212, and the one end of mounting bracket 211 articulates in casing 220, connects lifting subassembly 110 in the installed part again, drives mounting bracket 211 through lifting subassembly 110 and carries out the displacement and can adjust the position of cleaning brush 212.

In some examples, the mounting frame 211 is formed with a mounting groove, the lifting assembly 110 of the lifting device 100 further includes a slider 113, the slider 113 is disposed at one end of the flexible connection member 112 away from the rotating member 111, the slider 113 is disposed in the mounting groove, along with the shortening of the length of the flexible connection member 112, the slider 113 can abut against a limiting member on the groove wall of the mounting groove, and the slider 113 can drive the mounting frame 211 to lift, and then can drive the cleaning brush 212 to rise.

In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (11)

1. A lifting device, comprising:

a lifting assembly;

the protection component is connected with the lifting component;

the driving assembly is connected with the lifting assembly through the protection assembly and is used for driving an object to ascend or descend;

wherein, under the condition that the object is moved by external force, the protection component is separated from the driving component.

2. The lifting device of claim 1, wherein the protective assembly comprises:

the protection disc is connected to the lifting assembly;

and the elastic piece is connected with the protection disc and is used for applying elastic force to the protection disc so as to enable the protection disc to be connected with the driving assembly.

3. Lifting device as claimed in claim 2, characterized in that,

and the protection disc is provided with meshing teeth towards one side of the driving assembly, and is meshed with the driving assembly under the condition that the protection disc is abutted against the driving assembly.

4. A lifting device as claimed in claim 3, wherein,

the driving assembly is used for driving the protection disc to rotate along a first direction or a second direction so as to drive the lifting assembly;

the object is raised in the case of rotation of the protective disk in a first direction and lowered in the case of rotation of the protective disk in a second direction;

wherein, the end face tooth angle of the meshing teeth in the first direction is greater than the end face tooth angle of the meshing teeth in the second direction.

5. The lifting device of any one of claims 1 to 4, wherein the lifting assembly comprises:

the rotating piece is connected with the protection component;

one end of the flexible connecting piece is connected with the rotating piece, and the other end of the flexible connecting piece is connected with the object;

wherein, under the condition that the rotating piece rotates, the flexible connecting piece can be wound on the rotating piece;

wherein, the rotation piece and the protection disk of the protection component are of an integrated structure.

6. The lifting device of any one of claims 1 to 4, wherein the drive assembly comprises:

the worm wheel is connected to the lifting assembly through the protection assembly;

a worm connected to the worm wheel;

and the driving piece is connected with the worm.

7. The lifting device according to any one of claims 1 to 4, further comprising:

a frame;

the position identification component is arranged on the rack and is used for identifying the position of the lifting component.

8. The lift device of claim 7, wherein the position identification assembly comprises:

one end of the rotating arm is hinged to the frame;

the first bulge is arranged at the other end of the rotating arm;

the second protruding part is arranged on the lifting assembly;

the switch is arranged on one side of the rotating arm, which is away from the lifting assembly;

wherein the switch is triggered by the rotating arm with the second projection in contact with the first projection.

9. The lifting device of claim 8, wherein the position identification assembly further comprises:

the resetting piece is connected with the rotating arm; and/or

The buffer piece is arranged on the rotating arm and is positioned between the rotating arm and the switch; and/or

The swivel arm is made of an elastic material.

10. A cleaning apparatus, comprising:

the lifting device of any one of claims 1 to 9;

and the cleaning assembly is connected with the lifting assembly of the lifting device.

11. The cleaning apparatus defined in claim 10, further comprising:

the cleaning assembly comprises a mounting frame and a cleaning brush, the cleaning brush is rotatably connected to the mounting frame, one end of the mounting frame is hinged to the housing, and the lifting assembly is connected to the mounting frame.