CN216984736U - Lifting device - Google Patents

Abstract

The utility model provides a lifting device which is used for driving an integrated mechanism to ascend or descend. Elevating gear includes the support frame, installs first fitting piece on the support frame and setting are in second fitting piece and motor on the integrated mechanism, the last detachable of integrated mechanism is fixed with cleans the subassembly, with make under the control of the motor in the integrated mechanism the second fitting piece with first fitting piece is mutually supported, drives integrated mechanism and clean the subassembly and follow the support frame rises or descends. Compared with the prior art, the lifting device can drive the rolling brush of the sweeping robot to ascend or descend, so that the sweeping assembly on the integrated mechanism can be conveniently and automatically replaced, a user is prevented from touching the sweeping assembly, and the user experience can be improved.

Description

Lifting device

Technical Field

The utility model relates to a lifting device, in particular to a lifting device applied to a sweeper for automatically replacing a rolling brush device, and belongs to the field of automation equipment.

Background

In recent years, with the development of social economy and the improvement of family living standard, home cleaning gradually enters an intelligent and mechanized era, and the sweeping robot generated by future can release people from home cleaning work, effectively reduce the workload of people in the aspect of home cleaning, and relieve the fatigue degree of people in the process of home cleaning.

At present, the floor sweeping robot has widely entered into the lives of people, and can automatically complete the floor sweeping work in a room, thereby bringing great convenience to people. For satisfying diversified user demand, the robot of sweeping the floor has the mode of sweeping the floor, drags multiple different modes of cleaning such as ground mode, and in the mode of cleaning of difference, the subassembly that cleans of different types need install on the host computer of robot of sweeping the floor. In the correlation technique, when the mode of sweeping the floor robot is switched, the cleaning assembly on the floor sweeping robot needs to be manually moved, and the cleaning assembly after cleaning is dirty seriously, so the mode that the user needs to be manually moved is not only low in efficiency, but also can influence the experience of the user, and can bring diseases to the user under the serious condition.

In view of the above, there is a need to improve the replacement of the existing cleaning assembly to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lifting device which can automatically drive a rolling brush of a sweeping robot to ascend or descend, so that a user is prevented from touching the rolling brush, and the user experience can be improved.

In order to achieve the above object, the present invention provides a lifting device for driving an integration mechanism to ascend or descend, the lifting device includes a supporting frame, a first mating member mounted on the supporting frame, and a second mating member and a motor both disposed on the integration mechanism, and a cleaning assembly is detachably fixed on the integration mechanism, so that the second mating member and the first mating member are mutually mated under the control of the motor in the integration mechanism to drive the integration mechanism and the cleaning assembly to ascend or descend along the supporting frame.

As a further improvement of the present invention, the first mating member is a rack fixed on the supporting frame, the second mating member is a gear disposed at an end of the integrated mechanism, and the gear is engaged with the rack.

As a further improvement of the present invention, the integrated mechanism includes a rotating shaft, the motor is connected to the rotating shaft, and the gear is fixed at an end of the rotating shaft, so that when the motor drives the rotating shaft to rotate, the gear is driven to rotate.

As a further improvement of the present invention, a driven wheel is further fixed on the rotating shaft, a driving wheel is connected to a motor shaft of the motor, and the driven wheel and the driving wheel are meshed with each other, so that when the motor drives the motor shaft to drive the driving wheel to rotate, the driven wheel and the rotating shaft can be driven to rotate.

As a further improvement of the present invention, the lifting device further includes a guiding member mounted on the supporting frame and a fixing member connected to the integrating mechanism, and the fixing member and the guiding member cooperate with each other to guide the integrating mechanism and the cleaning assembly to move up and down along the supporting frame.

As a further improvement of the utility model, the guiding member is a roller, a sliding groove for the roller to slide is formed in the supporting frame, one end of the fixing member extends into the roller, and the other end of the fixing member is connected with the end of the integrated mechanism.

As a further improvement of the present invention, the fixing member includes a fixing body and a fixing shaft rotatably connected to the fixing body, the fixing body is rotatably connected to an end of the integrated mechanism, one end of the fixing shaft is rotatably connected to the fixing body, and the other end of the fixing shaft extends into the roller and is fixed to the roller.

As a further improvement of the present invention, the sliding groove is formed by recessing inward from an outer wall surface of the supporting frame, the supporting frame is further provided with a through groove communicated with the sliding groove, and the through groove penetrates through the supporting frame so as to allow the fixing shaft to pass through.

As a further improvement of the present invention, an extending direction of the through groove is the same as an extending direction of the sliding groove, and in the extending direction, a width of the through groove is smaller than a width of the sliding groove.

As a further improvement of the present invention, the lifting device further includes a connecting plate connecting the guiding member and the second mating member, so that the guiding member and the second mating member can synchronously drive the integrated mechanism to ascend or descend.

As a further improvement of the present invention, the two guiding members are symmetrically disposed on both sides of the second fitting member, and the connecting plate connects the second fitting member and the two guiding members.

The utility model has the beneficial effects that: the cleaning assembly can be detachably fixed on the integration mechanism of the lifting device, so that the first matching piece and the second matching piece are matched with each other under the control of a motor in the integration mechanism, the integration mechanism and the cleaning assembly can be driven to ascend or descend along the supporting frame, the cleaning assembly on the integration mechanism can be conveniently replaced, a user is prevented from touching the cleaning assembly, and the user experience can be improved.

Drawings

Fig. 1 is a schematic perspective view of an automatic rolling brush changer according to the present invention.

Fig. 2 is a schematic structural view of the automatic rolling brush changer shown in fig. 1 when a rolling brush is mounted thereon.

Fig. 3 is a partially exploded view of the automatic roller brush changer shown in fig. 1.

Fig. 4 is a partially exploded view of the integrated mechanism of fig. 3.

Fig. 5 is a schematic perspective view of the integrated mechanism of fig. 3 with the housing removed.

Fig. 6 is an exploded view of fig. 5.

Fig. 7 is an exploded view from another perspective of fig. 5.

Fig. 8 is an exploded view of the driving member, the rotating body, the locking member and the wear sleeve of fig. 7.

Fig. 9 is a schematic structural view of the first preferred embodiment of the lifting device in fig. 3.

Fig. 10 is an exploded view of fig. 9 with a portion of the hinge omitted.

Fig. 11 is a perspective view of the side bracket of fig. 10.

Fig. 12 is a schematic structural view of a second preferred embodiment of the lifting device in fig. 3.

Fig. 13 is a schematic structural view of the integrated mechanism of fig. 12 in combination with a lifting device.

Fig. 14 is an exploded view of fig. 13.

Fig. 15 is a schematic view of a part of the structure of the first roller, the second roller and the rotating wheel in fig. 14.

Fig. 16 is a perspective view of the drive plate, brake disc and second housing of fig. 14.

Fig. 17 is a schematic structural view of a third preferred embodiment of the lifting device in fig. 3.

Fig. 18 is another angular schematic of fig. 17.

Fig. 19 is an exploded view of fig. 17.

Fig. 20 is a schematic configuration diagram of a cleaning system to which the automatic roller brush exchanging apparatus of the present invention is applied.

Figure 21 is a partially exploded view of the cleaning system of figure 20.

Fig. 22 is a partially exploded view of the cleaning device of fig. 21.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the mechanisms and/or processing steps closely related to the solution of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1 and 2, in an automatic rolling brush replacing device 1 according to a preferred embodiment of the present invention, the automatic rolling brush replacing device 1 is configured to drive a rolling brush 2 to lift and turn, so that different rolling brushes 2 representing different working modes can be automatically installed on a sweeper, thereby realizing automatic replacement of the rolling brushes in the sweeper and meeting requirements of multiple modes. Specifically, the automatic roller brush changer 1 of the present invention includes an integration mechanism 100 and a lifting device 200 for driving the integration mechanism 100 to ascend/descend as a whole, and the roller brush 2 is detachably mounted and fixed on the integration mechanism 100 so as to ascend/descend as a whole along with the integration mechanism 100 by the driving of the lifting device 200. It should be noted that: the present invention is illustrated by the preferred embodiment in which the roller brush 2 is used as the cleaning assembly, but in practice, the roller brush 2 may be replaced by another cleaning assembly.

As shown in fig. 3 to 8, the integrated mechanism 100 includes a rotating shaft assembly 10, a motor assembly 30, a rotating assembly 50, and a motor protector 70, wherein the rotating shaft assembly 10 includes a rotating shaft 11 and a driven wheel 12 fixed on the rotating shaft 11; the motor assembly 30 includes a motor 31 and a driving wheel 32 connected to a motor shaft (not numbered) of the motor 31, and the driving wheel 32 is engaged with the driven wheel 12 to rotate the rotating shaft assembly 10. Since the integrated mechanism 100 of the present invention can be raised/lowered and also turned, two motor assemblies 30 are required, one of the motor assemblies 30 is used for driving the integrated mechanism 100 to be raised or lowered, and the other motor assembly 30 is used for driving the integrated mechanism 100 to be turned as a whole.

For two motor assemblies 30, the structure is the same, and each motor assembly is provided with a driving wheel, but the two driving wheels are respectively matched with different structures to realize different functions. Based on this, for convenience of description, the motor assembly for realizing the ascending or descending function is defined as the first motor assembly 301, the motor assembly for realizing the overturning function is defined as the second motor assembly 302, and correspondingly, the driving wheel on the first motor assembly 301 is the first driving wheel 321, the driving wheel on the second motor assembly 302 is the second driving wheel 322, and then the first driving wheel 321 is engaged with the driven wheel 12 on the rotating shaft 11. Each motor assembly 30 further comprises a fixed shell 33 for fixing the motor 31 and an auxiliary wheel 34 movably connected with the fixed shell 33, and the arrangement is such that the motor assembly 30 is integrally enclosed outside the rotating shaft 11, so that the structure is more compact.

The rotating assembly 50 includes a rotating body 51 sleeved outside the rotating shaft assembly 10 and a housing 52 assembled and fixed with the rotating body 51, a rack 511 is disposed on an inner side wall of the rotating body 51, and the rack 511 is used for being matched with the second driving wheel 322 and the auxiliary wheel 34 on the second motor assembly 302, so that under the driving of the second driving wheel 322 and the auxiliary wheel 34, the rotating body 51 starts to rotate and drives the housing 52 to rotate synchronously. Preferably, the auxiliary wheel 34 and the second driving wheel 322 are symmetrically arranged on both sides of the rotating shaft 11 to synchronously rotate the rotating body 51; the roll brush 2 is fixedly installed at the outside of the housing 52 so as to follow the rotation of the housing 52.

Specifically, the rotating body 51 is disposed in a circular ring shape, one side edge of the rotating body 51 close to the second motor assembly 302 protrudes outward to form a stopper 512, and the housing 52 covers the rotating body 51, the motor assembly 30 and the rotating shaft assembly 10 and is assembled and fixed with the stopper 512 of the rotating body 51, so that the housing 52 can be driven to rotate synchronously when the rotating body 51 rotates. The housing 52 is rectangular, and four outer side walls of the housing 52 are provided with fixing posts 521 for mounting and fixing the roller brush 2. The fixing posts 521 are arranged in an umbrella shape so as to be inserted into the corresponding rolling brush 2, so that the rolling brush 2 is fixed on the housing 52 and can rotate along with the housing 52.

In this embodiment, four fixing columns 521 are disposed on each outer side wall of the housing 52, and the four fixing columns 521 are disposed near four corners of the outer side wall respectively, so as to fix four corners of the rolling brush 2. Of course, the number and the position of the fixing posts 521 on each outer sidewall of the housing 52 can be adjusted according to the shape and the specific structure of the rolling brush 2 to adaptively fix the rolling brush 2, so the number and the position of the fixing posts 521 are not limited herein. In the present embodiment, the four fixing posts 521 are assembled and fixed on the outer sidewall of the housing 52, but in other embodiments, the four fixing posts 521 may be integrally provided with the outer sidewall of the housing 52, as long as they can fix the rolling brush 2, and the present invention is not limited thereto.

The motor protector 70 is used to prevent the rotating body 51, the second driving wheel 322 and the auxiliary wheel 34 from rotating in the reverse direction to cause the motor 31 to rotate reversely accidentally, resulting in damage to the motor 31 and accidental overturning of the entire integrated mechanism 100, when the motor 31 stops operating. Specifically, the motor protector 70 comprises a locking member 71 sleeved outside the rotating body 51 and a driving member 72 engaged with the rotating body 51, and when the second driving wheel 322 drives the rotating body 51 to rotate, the rotating body 51 pushes the driving member 72 to synchronously rotate, so that the motor protector 70 rotates along with the rotating assembly 50; when the motor 31 stops operating, the second driving wheel 322 and the rotating body 51 stop rotating, and the locking member 71 is locked and fixed with the rotating body 51 to limit the rotation of the rotating body 51.

The stopping portion 512 of the rotating body 51 is provided with a protruding portion 513 protruding towards the driving member 72, and the driving member 72 is correspondingly provided with an engaging portion 721 protruding towards the rotating body 51, so that when the second driving wheel 322 drives the rotating body 51 to rotate, the protruding portion 513 can abut against the engaging portion 721 and push the engaging portion 721 to rotate synchronously. Preferably, two protruding portions 513 are provided, and the two protruding portions 513 are spaced apart from each other, and one engaging portion 721 is provided between the two protruding portions 513, so that the engaging portion 721 can be pushed by the corresponding protruding portion 513 regardless of the forward rotation or the reverse rotation of the motor 31, so that the driving member 72 can be rotated synchronously.

In order to prevent the rotating body 51 and the driving member 72 from being unexpectedly rotated by the inertia and the gravity of the drum brush 2 when the motor 31 stops rotating, a locking member 71 is provided between the rotating body 51 and the driving member 72 to lock the rotating body 51 and the driving member 72 by the locking member 71. Preferably, the locking member 71 is provided with two locking portions 711, and the two locking portions 711 are oppositely disposed and respectively located at the outer sides of the two protruding portions 513, so that after the motor 31 stops working, one of the locking portions 711 of the locking member 71 can be locked with the corresponding protruding portion 513 to limit the rotation of the rotating body 51.

In this embodiment, the locking member 71 is a braking spring wound around the outer side of the rotating body 51, and the two locking portions 711 are formed by reversely bending two ends of the braking spring, so that after the motor 31 stops rotating, one end of the braking spring can hook the protruding portion 513 of the rotating body 51, so as to lock the rotating body 51. The two locking portions 711 are located at the outermost side, the two protruding portions 513 are located at the inner sides of the two locking portions 711, and the engaging portion 721 is located between the two protruding portions 513 (i.e., located at the middle position), when the rotating body 51 rotates in the clockwise direction, the first protruding portion 513 in the clockwise direction pushes the engaging portion 721, so that the driving member 72 rotates together; when the rotating body 51 rotates in the counterclockwise direction, the first protrusion 513 in the counterclockwise direction pushes the engaging portion 721 to rotate the driving member 72; when the motor 31 stops rotating, the rotating body 51 tends to rotate or revolve under the action of inertia and gravity of the roller brush 2, and at this time, one end of the braking spring hooks the corresponding protruding portion 513 to lock the protruding portion 513, so as to prevent the rotating body 51 from rotating or revolving, thereby achieving the purpose of braking.

In order to ensure that the brake spring can have a good braking effect, the outer side of the rotating body 51 is further sleeved with a wear-resistant sleeve 73, and the brake spring is wound on the wear-resistant sleeve 73, so that the rotation of the rotating body 51 can be limited by means of static friction between the brake spring and the wear-resistant sleeve 73. Of course, in other embodiments, the locking member 71 may have other structures, and the wear-resistant sleeve 73 may be selectively disposed or replaced with other structures according to actual situations, as long as the braking effect can be achieved, which is not limited herein.

Having described the specific structure of the integrated mechanism 100, the structure of the lifting device 200 and its operation will be described in detail.

The lifting device 200 is connected to the integrated mechanism 100 and is used for driving the integrated mechanism 100 to ascend or descend, so as to drive the roller brush 2 on the integrated mechanism 100 to move up and down. In the present invention, the lifting device 200 can be implemented in various manners, and three manners will be illustrated below, but not limited thereto.

The first embodiment is as follows: as shown in fig. 9 to 11 in conjunction with fig. 3, in this embodiment, the lifting device 200 includes a supporting frame 20, a first mating member 40 and a guiding member 60 mounted on the supporting frame 20, and a second mating member 80 disposed on the integrating mechanism 100, and the second mating member 80 and the first mating member 40 are mutually mated to drive the integrating mechanism 100 and the roller brush 2 to ascend or descend along the supporting frame 20 under the control of the motor 31. Specifically, the first engaging element 40 is a rack fixed on the supporting frame 20, the second engaging element 80 is a gear disposed at an end of the integrated mechanism 100, and the gear 80 is specifically fixed at an end of the rotating shaft 11, so that when the motor 31 in the integrated mechanism 100 drives the rotating shaft 11 to rotate, the gear 80 can be driven to synchronously rotate, and then the gear 80 and the rack 40 are engaged with each other, so as to drive the whole integrated mechanism 100 to ascend or descend.

Since the two motor assemblies 30 are provided in the present invention, the two lifting devices 200 are correspondingly provided to ensure that the integrated mechanism 100 can be stably lifted or lowered. Since the two lifting devices 200 have the same structure, the specific structure of one of the lifting devices 200 and the operation principle thereof will be described below.

The gear 80 is far away from the driven wheel 12 and is arranged close to the support frame 20, so that when the motor 31 drives the motor shaft to drive the driving wheel 32 to rotate, the driven wheel 12 and the rotating shaft 11 can be synchronously driven to rotate, and then the gear 80 is driven to rotate. The rack 40 is vertically fixed on the support frame 20, so that when the gear 80 rotates, the gear 80 and the rack 40 are engaged with each other to drive the integrated mechanism 100 to move upwards or downwards, thereby achieving the purpose of lifting.

Support frame 20 is the setting of the type of falling U, including the top support 21 that the level was placed and the lateral part support 22 of the downward vertical extension in both ends from top support 21, rack 40 fixes on lateral part support 22. Specifically, a communicating slide way 221 is formed from the middle position to the bottom position of the side bracket 22, the gear 80 is accommodated in the slide way 221, and the rack 40 is arranged close to the slide way 221 and partially protrudes into the slide way 221, so that the gear 80 can be meshed with the rack 40 in the slide way 221. The arrangement of the slide way 221 not only provides a sliding space for the gear 80, but also can limit the sliding range of the gear 80, and simultaneously can provide a guiding function for the up-and-down sliding of the gear 80, thereby achieving three purposes at a time.

In order to ensure that the integration mechanism 100 can be stably raised or lowered, the lifting device 200 of the present embodiment further includes a guide 60 for further guiding the integration mechanism 100. Correspondingly, the lifting device 200 further comprises a fixing member 61 connected with the integrated mechanism 100, and the fixing member 61 is matched with the guide member 60 for guiding the integrated mechanism 100 to move up and down along the side bracket 22. In this embodiment, the guiding member 60 is a roller, one end of the fixing member 61 extends into the roller 60, and the other end is sleeved on the rotating shaft 11; the side bracket 22 has a sliding groove 222 formed therein for the roller 60 to slide, and the sliding groove 222 is formed to be recessed inward from an outer wall surface of the side bracket 22.

In order to ensure the best guiding effect, two rollers 60 and two sliding grooves 222 are provided, and the two sliding grooves 222 extend in the vertical direction and are respectively arranged at two sides of the sliding channel 221. The fixing member 61 includes a fixing body 611 and a fixing shaft 612 rotatably connected to the fixing body 611, a central portion of the fixing body 611 is sleeved on the rotating shaft 11 through a bearing, so that when the rotating shaft 11 rotates, the fixing body 611 is fixed, two ends of the fixing body 611 protrude outwards to mount the two fixing shafts 612, one end of each fixing shaft 612 is rotatably connected to the fixing body 611, and the other end of each fixing shaft 612 extends into the roller 60 and is fixed to the roller 60. Preferably, the side bracket 22 is further provided with a through groove 223 communicated with the sliding groove 222, and the through groove 223 penetrates through the side bracket 22 to allow the fixing shaft 612 to pass through, so as to drive the roller 60 to slide up and down in the sliding groove 222; the extending direction of the through groove 223 is the same as the extending direction of the sliding groove 222, and in the extending direction, the width of the through groove 223 is smaller than the width of the sliding groove 222 to prevent the roller 60 from sliding out of the through groove 223.

Further, the lifting device 200 further includes a connecting plate 62 connecting the roller 60 and the gear 80, and since the two rollers 60 are symmetrically disposed on two sides of the gear 80, the gear 80 and the two rollers 60 can be connected by the connecting plate 62, so as to ensure that the roller 60 and the gear 80 can synchronously drive the integrated mechanism 100 to stably ascend or descend. Specifically, the middle part of the connecting plate 62 is sleeved on the rotating shaft 11 and is limited by a gasket 63 so as to prevent the rotating shaft 11 from sliding out of the connecting plate 62; the two ends of the connecting plate 62 are fixed to the fixing shaft 612 through the screws 64, so that the rollers 60 are positioned, and the synchronism of the two rollers 60 on the two sides of the gear 80 is ensured.

In a word, the lifting device 200 shown in the first embodiment utilizes the mutual engagement between the gear 80 and the rack 40 and the mutual cooperation between the fixing member 61 and the roller 60, so as to not only guide and drive the integrated mechanism 100 and the rolling brush 2 to ascend or descend along the supporting frame 20, but also ensure that the integrated mechanism 100 has better stability in the process of moving up and down, thereby facilitating the replacement of the rolling brush 2 on the integrated mechanism 100, avoiding the user from touching the rolling brush 2, and improving the user experience.

Example two: as shown in fig. 12 to 16, in this embodiment, the lifting device 200' includes a supporting frame 20, a first cable assembly 41 and a second cable assembly 42 mounted on the supporting frame 20, and a rotating wheel 43 mounted on the integrated mechanism 100, where the first mating member is the first cable assembly 41 and the second cable assembly 42, and the second mating member is the rotating wheel 43. Since the structures of the supporting frame 20, the roller 60, the fixing member 61 and the connecting plate 62 are the same as those of the first embodiment, the structures of the supporting frame 20, the roller 60, the fixing member 61 and the connecting plate 62 will not be described herein, and the following description will mainly describe the structures of the first and second cable assemblies 41 and 42.

The first wire rope assembly 41 comprises a first roller 411 and a first wire rope retracting and releasing mechanism 412 connected with the first roller 411, the second wire rope assembly 42 comprises a second roller 421 and a second wire rope retracting and releasing mechanism 422 connected with the second roller 421, the rotating wheel 43 is fixedly installed at the end of the rotating shaft 11, the first roller 411 and the second roller 421 are respectively arranged at the upper side and the lower side of the rotating wheel 43 and are simultaneously meshed with the rotating wheel 43, so that the rotating wheel 43 can drive the first roller 411 and the second roller 421 to rotate when rotating, the first wire rope retracting and releasing mechanism 412 and the second wire rope retracting and releasing mechanism 421 respectively rotate towards opposite directions, and the integrated mechanism 100 is driven to ascend or descend integrally.

In this embodiment, the structure of the first wire rope retracting mechanism 412 is the same as that of the second wire rope retracting mechanism 422, so the structure of the first wire rope retracting mechanism 412 will be described below as an example, and the structure of the second wire rope retracting mechanism 422 will not be described again.

The first wire rope retracting mechanism 412 includes a driving disc 413 coaxially connected to the first roller 411, a brake disc 414 sleeved outside the driving disc 413, and a wire rope 415 wound around the brake disc 414, and when the first roller 411 rotates, the driving disc 413 and the brake disc 414 can be driven to rotate, so that the wire rope 415 can be freely retracted. Specifically, the driving disc 413 has a rotating shaft 4131, the first roller 411 is sleeved and fixed at one end of the rotating shaft 4131, the first wire rope retracting mechanism 412 further includes a limiting member 416 sleeved outside the rotating shaft 4131 and limited between the first roller 411 and the driving disc 413, and an elastic member 417 wound outside the limiting member 416, and an end of the elastic member 417 is bent and arranged between the driving disc 413 and the braking disc 414, so that when the driving disc 413 rotates, the end of the elastic member 417 can be pushed to move until the elastic member 417 abuts against the braking disc 414 and pushes the braking disc 414 to rotate.

In this embodiment, the limiting member 416 is a wear-resistant sleeve, and the elastic member 417 is a brake spring, and when the driving disc 413 pushes the end of the brake spring to move, the brake spring deforms and disengages from the wear-resistant sleeve, so that the brake disc 414 can rotate along with the driving disc 413. The driving disk 413 is provided with two abutting surfaces 4132, and the two abutting surfaces 4132 are symmetrically arranged at two sides of the rotating shaft 4131 and are used for being matched with two end parts of the elastic member 417. The brake disc 414 is fixed on the other end of the rotating shaft 4131 of the driving disc 413, and is provided with a recessed accommodating groove 4141 and a protruding portion 4142 protruding toward the first roller 411, the wire rope 415 is wound and accommodated in the accommodating groove 4141, the protruding portion 4142 is located between two abutting surfaces 4132 of the driving disc 413, and two ends of the elastic member 417 are respectively located between the protruding portion 4142 and the corresponding abutting surface 4131, so that when the first roller 411 rotates forward or backward, the driving disc 413 and the brake disc 414 can be driven to rotate in different directions, and the wire rope 415 is tightened or released.

The first cable winding and unwinding mechanism 412 further includes a first housing 418 covering the first roller 411, and a second housing 419 covering the brake disc 414, the driving disc 413, and the elastic member 417, wherein the first housing 418 and the second housing 419 are assembled and fixed to protect the first roller 411, the brake disc 414, the driving disc 413, and the elastic member 417. A through hole 4191 is further formed in the second housing 419 at a position corresponding to the steel wire rope 415, so that the steel wire rope 415 can conveniently penetrate out of the second housing 419.

For the first cable retracting mechanism 412, one end of the cable 415 is wound on the brake disc 414, and the other end is connected to the top of the support frame 20, for the second cable retracting mechanism 422, one end of the cable 415 is wound on the corresponding brake disc 414, and the other end is connected to the bottom of the support frame 20, so that when the motor 31 drives the first roller 411 to rotate in the forward direction, the cable 415 connected to the top of the support frame 20 is gradually tightened (i.e., retracted) in the brake disc 414, the second roller 421 rotates in the reverse direction, the cable 415 connected to the bottom of the support frame 20 is gradually released (i.e., paid off), and at this time, the integrated mechanism 100 is driven by the two sets of cables 415 to move upward as a whole; when the motor 31 drives the first roller 411 to rotate in the reverse direction, the steel wire rope 415 connected to the top of the supporting frame 20 is gradually released (i.e., paid off) in the brake disc 414, the second roller 421 rotates in the forward direction, the steel wire rope 415 connected to the bottom of the supporting frame 20 is gradually tightened (i.e., paid off), and at this time, the integrated mechanism 100 is driven by the two sets of steel wire ropes 415 to move downward integrally.

When the motor 31 stops working, the first roller 411 and the second roller 421 stop rotating, and at this time, the brake disc 414 is driven to rotate by the pulling force applied to the wire rope 415 until the elastic member 417 embraces the driving disc 413 and cannot rotate, so as to prevent the integrated mechanism 100 from sliding down.

In order to ensure that the two ends of the integrated mechanism 100 can synchronously move up and down, a first steel wire rope assembly 41 and a second steel wire rope assembly 42 are arranged on the two side brackets 22, so that when the motor 31 drives the rotating shaft 11 to rotate, the rotating wheel 43 can be driven to rotate, and then the first steel wire rope assembly 41 and the second steel wire rope assembly 42 are driven to work, so that the integrated mechanism 100 integrally moves up or down.

In summary, the lifting device 200' shown in the second embodiment utilizes the mutual engagement between the rotating wheel 43 and the first roller 411 and the second roller 421, so that when the rotating wheel 43 rotates, the first roller 411 and the second roller 421 can be driven to rotate simultaneously, and the rotating direction of the first roller 411 is opposite to the rotating direction of the second roller 421, and then under the driving of the first roller 411 and the second roller 421, the first wire rope retracting mechanism 412 and the second wire rope retracting mechanism 422 can rotate in opposite directions to drive the integrated mechanism 100 to ascend or descend along the supporting frame 20, and the integrated mechanism 100 has better stability in the up-and-down moving process, and the requirements (including the structure style and the type) on the motor 31 are also reduced, thereby improving the safety and reliability.

Example three: as shown in fig. 17 to 19, in this embodiment, the lifting device 200 ″ includes a supporting frame (not shown), a motor 44 mounted on the supporting frame, a screw rod 45 coaxially connected to the motor 44, and a guide 60' fixed in the supporting frame, and the structure of the supporting frame is the same as that of the supporting frame 20 in the first embodiment, so the description of the structure of the supporting frame is omitted here.

At least one end of the integrated mechanism 100 is sleeved on the screw rod 45 and the guide member 60 ', so that when the motor 44 controls the screw rod 45 to rotate, the integrated mechanism 100 can be driven to ascend or descend under the guiding action of the guide member 60'. In the present embodiment, both ends of the integrated mechanism 100 are provided with the guides 60', and the motor 44 and the lead screw 45 are provided at only one end of the integrated mechanism 100; of course, in other embodiments, the motor 44 and the screw 45 may be respectively disposed at two ends of the integrated mechanism 100 to further stably drive the integrated mechanism 100 to ascend or descend, which is not limited herein.

One end of the screw rod 45 is movably connected with the support frame, and the other end is connected with a power shaft (not shown) of the motor 44, so that the screw rod 45 can be driven to rotate when the power shaft rotates. Specifically, the support frame comprises a first support plate 23 and a second support plate 24 which are horizontally placed, the bottom end of a screw rod 45 is fixedly assembled with the first support plate 23 through a bearing 46, the top end of the screw rod is fixedly assembled with the second support plate 24 through the bearing 46, a motor 44 is fixed above the second support plate 24 so as to pass through the second support plate 24 to be connected with the top end of the screw rod 45, the bottom end of a guide piece 60' is fixedly assembled with the first support plate 23, and the top end of the guide piece is fixedly assembled with the second support plate 24.

The lifting device 200 ″ further comprises a connecting piece 47 sleeved on the screw rod 45 and in threaded connection with the screw rod 45, and a connecting rod 48 sleeved outside the connecting piece 47, wherein the end part of the integrated mechanism 100 is fixed in the connecting rod 48, so that when the screw rod 45 rotates, the connecting piece 47 and the connecting rod 48 can be used for driving the integrated mechanism 100 to convert the rotating motion into upward or downward linear motion.

In this embodiment, the guide 60' is a linear bearing, and the linear bearing is disposed on both sides of the integrated mechanism 100; on the side of the integrated mechanism 100, which is provided with the spindle 45 and the linear bearing 60 ', the spindle 45 is arranged alongside the linear bearing 60' and is connected to one another by means of a connecting rod 48.

Two ends of the rotating shaft 11 are respectively fixedly connected with the connecting rods 48; specifically, both ends of the rotating shaft 11 are rectangular, and the connecting rod 48 is provided with a slot 481 for accommodating the end of the rotating shaft 11. The integrated mechanism 100 is provided with a screw 45 and one side of a linear bearing 60 ', the slot 481 is positioned between the screw 45 and the linear bearing 60', and the other end of the rotating shaft 11 is assembled and fixed with a connecting rod 48 positioned at the other side of the integrated mechanism 100.

In a word, the lifting device 200 ″ shown in the third embodiment drives the screw 45 to rotate by using the motor 44 to drive the integrated mechanism 100 to ascend or descend, so that the rolling brush 2 in the sweeper can be replaced manually and automatically replaced, and in addition, the linear bearing 60' is used for guiding in the ascending or descending process of the integrated mechanism 100, so that the movement stability of the integrated mechanism 100 is enhanced, and the safety and reliability performance is improved.

The above is the description of the specific structure and the specific working process of the lifting device of the three embodiments; of course, the lifting device can also lift in a telescopic rod or telescopic tube manner, and the details are not described here.

From the above description of the structure of the integrated mechanism 100 and the lifting devices 200, 200', 200 ″, it can be seen that: the lifting devices 200, 200' and 200 ″ can stably drive the rolling brush 2 to ascend or descend, and the integrated mechanism 100 can stably drive the rolling brush 2 to overturn so as to meet the requirements of different modes of the sweeper.

As shown in fig. 20 to 22, a structure of the automatic rolling brush changer 1 of the present invention applied to a cleaning system 500 is shown, wherein the cleaning system 500 includes a base station 400 and a cleaning device 300. The cleaning device 300 comprises a mounting station 301 for mounting the roll brush 2, the base station 400 comprises a parking station 402 for parking the cleaning device 300, and an automatic roll brush changing apparatus 1 for integrating the roll brush 2. Can carry round brush 2 and go up and down and/or overturn under elevating gear 200, 200 ', 200 "and/or rotating assembly 50's drive to realize that the classification of round brush 2 is placed and is accomodate, practice thrift the space, and assemble required round brush 2 to cleaning device 300 as required on, the user's of being convenient for quick replacement round brush 2, improve clean efficiency, improved cleaning system 500's convenience in use.

In the present invention, the cleaning device 300 is preferably a sweeper, and generally, one rolling brush 2 is installed on the sweeper, and three rolling brushes 2 with different purposes are hung on three outer side walls of the housing 52 of the rotating assembly 50 for standby; when the sweeper 300 needs to replace the rolling brush 2, the sweeper 300 enters the base station 400 to detach the current rolling brush 2 and install the current rolling brush 2 on the outer side wall of the shell 52 where the rolling brush 2 is not hung, then the lifting devices 200, 200 'and 200 ″ drive the whole integrated mechanism 100 to ascend to a certain height, then the rotating assembly 50 is used for driving the other three rolling brushes 2 to overturn until the rolling brush 2 needing to be selected rotates to a proper position, then the lifting devices 200, 200' and 200 ″ drive the whole integrated mechanism 100 to descend to an installation position, and finally the selected rolling brush 2 is installed on the sweeper 300.

Of course, only one rolling brush 2 may be hung on the four outer side walls of the housing 52 of the rotating assembly 50, and two, three or four rolling brushes 2 may also be hung on the four outer side walls, as long as the rolling brushes 2 can be automatically replaced when the rolling brushes 2 need to be replaced, which is not limited herein.

In summary, the automatic rolling brush replacing device 1 of the present invention can utilize the rotating assembly 50 to drive the integrated mechanism 100 to rotate integrally, and can also utilize the lifting devices 200, 200', 200 ″ to drive the whole integrated mechanism 100 to ascend or descend, so as to achieve automatic replacement of the rolling brush 2, which not only has compact layout, small volume, and intelligent realization, avoids users touching the rolling brush 2, and improves user experience, but also can identify corresponding scenes to work with specific rolling brushes 2, meet the requirements of various modes, solve the problem that the sweeper cannot completely and autonomously install the standby or new rolling brush 2, achieve full-automatic machine operation, and avoid manual operation.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims (11)

1. A lifting device is used for driving an integrated mechanism to ascend or descend and is characterized in that: elevating gear includes the support frame, installs first fitting piece on the support frame and setting are in second fitting piece and motor on the integrated mechanism, the last detachable of integrated mechanism is fixed with cleans the subassembly, with make under the control of the motor in the integrated mechanism the second fitting piece with first fitting piece is mutually supported, drives integrated mechanism and clean the subassembly and follow the support frame rises or descends.

2. The lifting device according to claim 1, characterized in that: the first fitting piece is a rack fixed on the supporting frame, the second fitting piece is a gear arranged at the end part of the integrated mechanism, and the gear is meshed with the rack.

3. The lifting device according to claim 2, characterized in that: the integrated mechanism comprises a rotating shaft, the motor is connected with the rotating shaft, and the gear is fixed at the end of the rotating shaft so as to drive the gear to rotate when the motor drives the rotating shaft to rotate.

4. The lifting device as claimed in claim 3, characterized in that: the motor is characterized in that a driven wheel is further fixed on the rotating shaft, a driving wheel is connected to a motor shaft of the motor, and the driven wheel is meshed with the driving wheel, so that when the motor drives the motor shaft to drive the driving wheel to rotate, the driven wheel and the rotating shaft can be driven to rotate.

5. The lifting device as claimed in claim 1, characterized in that: the lifting device further comprises a guide piece arranged on the support frame and a fixing piece connected with the integration mechanism, and the fixing piece is matched with the guide piece to guide the integration mechanism and the cleaning assembly to move up and down along the support frame.

6. The lifting device as claimed in claim 5, wherein: the guide piece is a roller, a sliding groove for the sliding of the roller is formed in the supporting frame, one end of the fixing piece extends into the inside of the roller, and the other end of the fixing piece is connected with the end part of the integrated mechanism.

7. The lifting device as claimed in claim 6, characterized in that: the fixing piece comprises a fixing body and a fixing shaft rotatably connected with the fixing body, the fixing body is rotatably connected with the end part of the integrated mechanism, one end of the fixing shaft is rotatably connected with the fixing body, and the other end of the fixing shaft extends into the roller and is fixed with the roller.

8. The lifting device as claimed in claim 7, wherein: the sliding groove is formed by inwards sinking the outer wall surface of the support frame, a through groove communicated with the sliding groove is further formed in the support frame, and the through groove penetrates through the support frame so that the fixing shaft can penetrate through the through groove.

9. The lifting device as claimed in claim 8, characterized in that: the extending direction of the through groove is the same as the extending direction of the sliding groove, and in the extending direction, the width of the through groove is smaller than that of the sliding groove.

10. The lifting device as claimed in claim 5, wherein: the lifting device further comprises a connecting plate for connecting the guide piece and the second matching piece, so that the guide piece and the second matching piece can synchronously drive the integrated mechanism to ascend or descend.

11. The lifting device as claimed in claim 10, characterized in that: the guide pieces are provided with two guide pieces which are symmetrically distributed on two sides of the second matching piece, and the second matching piece and the two guide pieces are connected through the connecting plate.

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