Transmission assembly of cleaning device and cleaning device

Abstract

The utility model discloses a transmission assembly of a cleaning device and the cleaning device. The transmission assembly comprises a driving shaft, and a linkage part is arranged on the driving shaft; the transmission seat is rotatably connected with the driving shaft; the transmission seat is provided with a first abutting part and a second abutting part, and the linkage part is used for abutting against the first abutting part so that the transmission seat can be in linkage with the driving shaft; the elastic piece is connected to the driving shaft or the transmission seat; the elastic piece is provided with a first elastic arm and a second elastic arm, and the first elastic arm is used for abutting against the linkage part under the action of the elastic stress of the first elastic arm so that the linkage part can be kept in the abutting state with the first abutting part. The second elastic arm is used for keeping abutting against the second abutting part under the action of the elastic stress of the second elastic arm. The cleaning device comprises a driving piece, a cleaning piece and the transmission assembly. Linkage of the transmission seat and the driving shaft keeps abutting linkage through elastic force of the first elastic arm and the second elastic arm of the elastic piece, and synchronous rotation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning device technical field especially, it relates to a kind of transmission assembly and cleaning device of cleaning device. BACKGROUND

[0002] In the existing cleaning robot, when cleaning, it is usually with rotating cleaning piece (such as cloth disc, cleaning brush etc.) to ground or wall surface is cleaned, when cleaning, wall surface, corner etc. are cleaned, cleaning piece needs to swing out from the chassis of robot to better clean wall surface, corner etc.

[0003] When cleaning piece is cleaned, collision is prone to occur when obstacle is encountered, impact is caused.If the rotating swing structure of cleaning piece is directly connected with the driving shaft of driving structure, reverse rotation of swing piece can occur under the reaction of obstacle, which can easily cause the driving shaft of driving structure to be stuck if adaptive reverse rotation cannot occur.The cleaning robot in the related art generally detects obstacles by sensors, and reverses adaptively to avoid obstacles when obstacles are encountered;Or directly stop rotating, which can easily affect cleaning efficiency. SUMMARY

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides a kind of transmission assembly and cleaning device of cleaning device, and the linkage of transmission seat and driving shaft is kept by the elastic force of the first elastic arm and the second elastic arm of elastic member.

[0005] The utility model employs the technical scheme that:

[0006] A kind of transmission assembly of cleaning device, comprising,

[0007] Driving shaft, the driving shaft is equipped with linkage portion;

[0008] Transmission seat, the transmission seat is rotatably connected with the driving shaft;The transmission seat is equipped with first abutment portion and second abutment portion, the first abutment portion and second abutment portion are spaced distribution on the rotation track of the driving shaft, and the linkage portion is used for the first abutment portion abutment, so that the transmission seat is linked with the driving shaft;

[0009] Elastic member, the elastic member is connected to the driving shaft or the transmission seat;The elastic member has first elastic arm and second elastic arm, the first elastic arm is used for abutting with the linkage portion under the action of its elastic stress, so that the linkage portion keeps with the first abutment portion abutment state;The second elastic arm is used for keeping with the second abutment portion abutment under the action of its elastic stress.

[0010] Further, the transmission seat is provided with a transmission groove, the driving shaft is arranged in the transmission groove, and the linkage part is located in the transmission groove; the first abutting part and the second abutting part are both arranged in the transmission groove.

[0011] Further, the first abutting part comprises an abutting step, the inner circumferential wall of the transmission groove is provided with the abutting step, the first elastic arm abuts against the linkage part to drive the linkage part to abut against the abutting step; the abutting step is formed as the first abutting part.

[0012] Further, the second abutting part comprises a clamping groove, the inner circumferential wall of the transmission groove is provided with the clamping groove, the second elastic arm is clamped to the clamping groove and abuts against the end wall of the clamping groove; the clamping groove is formed as the second abutting part.

[0013] Further, the elastic member further comprises an elastic ring group, one end of the first elastic arm is connected to one end of the elastic ring group, and the other end of the second elastic arm is connected to the other end of the elastic ring group; the elastic ring group is sleeved outside the driving shaft.

[0014] Further, the elastic ring group is provided with two elastic ring groups, one end of each of the two elastic ring groups is connected by the first elastic arm, so that the two elastic ring groups have a penetrating interval; the other end of each of the two elastic ring groups is provided with the second elastic arm; the two elastic ring groups are sleeved outside the driving shaft, so that the linkage part penetrates through the penetrating interval and abuts against the first elastic arm.

[0015] Further, the angle between the line connecting the center of the rotation track of the first abutting part to the driving shaft and the center of the rotation track of the second abutting part to the driving shaft is 90°-270°; the distribution positions of the first elastic arm and the second elastic arm are matched with the first abutting part and the second abutting part.

[0016] Further, the driving shaft is sleeved with a linkage sleeve, and the linkage sleeve is circumferentially provided with a linkage block; the linkage block is formed as the linkage part.

[0017] Further, the linkage block is provided with an abutting clamping groove; the first elastic arm is clamped into the abutting clamping groove.

[0018] Further, the linkage sleeve is provided with a first limiting plane, and the driving shaft is provided with a second limiting plane; the first limiting plane is used to abut against the second limiting plane after the linkage sleeve is sleeved outside the driving shaft, so as to prevent the linkage sleeve from rotating relative to the driving shaft.

[0019] The cleaning device comprises a driving member, a cleaning member and the transmission assembly; the driving member is used for driving the driving shaft to rotate, and the cleaning member is connected to the transmission seat.

[0020] In conclusion, the utility model has the following technical effects:

[0021] 1. In the cleaning use state, the first elastic arm and the second elastic arm of the elastic member abut at different positions, so that the linkage part of the driving shaft can be kept in a stable assembled state, thus the driving shaft can be kept in linkage with the transmission seat, and the cleaning member on the transmission seat can be kept in a stable cleaning state.

[0022] 2. When encountering an obstacle, the transmission seat will rotate within the compression stroke of the second elastic arm to avoid the obstacle; meanwhile, the other first elastic arm of the driving elastic member will superimpose the rotating force of the second elastic arm to tightly abut the linkage part, so that the linkage part keeps in abutment with the first abutment part, and after the obstacle is offset, the second elastic arm can be reset, and the rebounding force of the abutted first elastic arm abuts the second abutment part again to realize rapid resetting and keep the abutment use state, which is beneficial to keeping the cleaning member in abutment to the edge, dead angle and other places to improve the cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structural schematic view of the transmission assembly of the utility model;

[0024] Figure 2 FIG. 2 is a structural schematic view of the driving shaft and the elastic member of the transmission assembly of the utility model;

[0025] Figure 3 FIG. 3 is a structural schematic view of the linkage sleeve of the transmission assembly of the utility model;

[0026] Figure 4 FIG. 4 is a structural schematic view of the elastic member of the utility model;

[0027] Figure 5 FIG. 5 is a structural schematic view of the transmission seat of the utility model;

[0028] Figure 6 FIG. 6 is a structural schematic view of the cleaning device of the utility model.

[0029] In the drawings, the reference signs have the following meanings: 10, driving shaft; 11, linkage block; 111, abutment clamping groove; 12, linkage sleeve; 121, first limiting plane; 13, second limiting plane; 20, transmission seat; 21, abutment step; 22, clamping groove; 23, transmission groove; 30, elastic member; 31, first elastic arm; 32, second elastic arm; 33, elastic ring group; 34, penetrating interval; 40, driving member. DETAILED DESCRIPTION

[0030] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0031] In the description of the present application, it should be pointed out that the directions or position relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0033] Referring to Figures 1-5 The present application discloses a transmission assembly of a cleaning device, comprising a driving shaft 10, a transmission seat 20 and an elastic member 30, a linkage part is arranged on the driving shaft 10. The transmission seat 20 is rotatably connected with the driving shaft 10, and the transmission seat is provided with a first abutting part and a second abutting part. The first abutting part and the second abutting part are distributed at intervals on the rotation track of the driving shaft 10. The linkage part can abut against the first abutting part. After the linkage part abuts against the first abutting part, the transmission seat 20 is linked with the driving shaft 10. At this time, the driving shaft 10 can drive the transmission seat 20 to rotate together after the linkage part abuts against the first abutting part of the transmission seat 20.

[0034] In addition, the elastic member 30 is connected with the driving shaft 10 or the transmission seat. The elastic member 30 has a first elastic arm 31 and a second elastic arm 32. After the elastic arms are assembled to the driving shaft 10 or the transmission seat, the first elastic arm 31 and the second elastic arm 32 can be located within the interval between the first abutting part and the second abutting part. The first elastic arm 31 abuts against the linkage part under the action of its own elastic stress. After the linkage part is abutted by the first elastic arm 31, it can maintain the abutting state with the first abutting part. The second elastic arm 32 can maintain the abutting state with the second abutting part under the action of its own elastic stress.

[0035] That is to say, the first elastic arm 31 of the elastic member 30 acts on the linkage portion of the driving shaft 10 to make the linkage portion of the driving shaft 10 abut against the first abutting portion of the transmission seat 20, and the second elastic arm 32 of the elastic member 30 acts on the second abutting portion of the transmission seat 20, and the first abutting portion and the second abutting portion are spaced apart on the rotation track of the driving shaft 10, so that the driving shaft 10 can be kept in the abutting linkage state with the transmission seat 20 under the action of the two elastic arms of the elastic member 30.

[0036] On the basis of the above structure, when the transmission assembly of the cleaning device is used, the driving shaft 10 can be connected with the driving member 40 of the cleaning device, and the transmission seat 20 can be used to connect the cleaning member of the cleaning device, and when cleaning, the driving member 40 of the cleaning device drives the driving shaft 10 to rotate, and the rotation direction of the driving shaft 10 is the first direction and the second direction opposite to the first direction, for example, the clockwise direction and the counterclockwise direction. Specifically, the first abutting portion, the linkage portion, the first elastic arm 31, the second elastic arm 32 and the second abutting arm are sequentially distributed on the rotation track of the driving shaft 10.

[0037] When the driving shaft 10 rotates in the first direction, the linkage portion of the driving shaft 10 acts on the first elastic arm 31, and then transmits to the second elastic arm 32 through the elastic member 30, and the second elastic arm 32 keeps the abutting state with the second abutting portion at this time, so that the transmission seat 20 can be swung out in the first direction, so that the cleaning member connected therewith can also be swung out in the first direction, that is, the swing-out of the transmission seat is that the first elastic arm of the elastic member is stressed, then transmitted to the second elastic arm, and then applied to the second abutting portion of the transmission seat, so that the swing-out force of the transmission seat is more flexible than the direct transmission swing-out.

[0038] When the driving shaft 10 rotates in the second direction, the linkage portion of the driving shaft can directly act on the first abutting portion to drive the transmission seat to rotate in the second direction, and at this time, the first elastic arm and the second elastic arm of the elastic member keep the stable abutting state with the linkage portion of the driving shaft and the second abutting portion, so that the cleaning member can be stably swung back in the second direction. It should be noted that if the first direction is the swing-out cleaning direction of the cleaning member, then the second direction opposite to the first direction is the swing-back position direction of the cleaning member.

[0039] In the swing-out state, the linkage portion of the drive shaft 10 acts on the first elastic arm 31 of the elastic member 30, so that the second elastic arm 32 of the elastic member 30 acts on the second abutting portion. In the swing-back state, the linkage portion of the drive shaft 10 directly abuts against the first abutting portion of the transmission seat, and the first elastic arm of the elastic member 30 can also press the linkage portion under the elastic stress of the first elastic arm, so that the linkage portion abuts against the first abutting portion of the transmission seat 20, and the second elastic arm 32 of the elastic member 30 abuts against the second abutting portion. In this way, the first elastic arm 31 and the second elastic arm 32 of the elastic member 30 can abut against the transmission seat 20 at different positions on the rotation track of the drive shaft 10, and the first elastic arm 31 can exert a force to enable the linkage portion to be kept between the first abutting portion and the first elastic arm 31.

[0040] Therefore, in the present application, the first elastic arm 31 and the second elastic arm 32 of the elastic member 30 can abut against at different positions, so that the linkage portion of the drive shaft 10 can be kept in a stable abutting assembly state, and the drive shaft 10 can stably drive the transmission seat 20 to realize linkage, and the cleaning member on the transmission seat 20 can be synchronously swung out and swung back, which is beneficial to keeping the cleaning member in a cleaning state abutting against the edge, dead angle and other places, and improves the cleaning effect.

[0041] If the transmission seat 20 encounters an obstacle, the obstacle can exert an external force to the transmission seat 20. When the external force acting on the transmission seat 20 is large enough, the second abutting portion can exert a force to the second elastic arm 32 to overcome the elastic stress of the second elastic arm 32, that is, the second abutting portion of the transmission seat 20 can compress the second elastic arm 32. In this case, the transmission seat 20 can rotate within the compression stroke of the second elastic arm 32 to avoid the obstacle. Meanwhile, the other first elastic arm 31 of the elastic member 30 can superimpose the rotating force of the second elastic arm 32 to more tightly abut against the linkage portion, so as to keep the linkage portion in the abutting state with the first abutting portion.

[0042] After the obstacle is moved away, the second elastic arm 32 can be reset, and the rebounding force of the first elastic arm 31 is superimposed to realize fast resetting and keep the abutting linkage state.

[0043] Further, the transmission seat 20 can be provided with a transmission groove 23, and the drive shaft 10 is arranged in the transmission groove 23. After the drive shaft 10 is assembled into the transmission groove 23, the linkage portion is located in the transmission groove 23. On the basis of this structure, the first abutting portion and the second abutting portion are arranged in the transmission groove 23. Meanwhile, the elastic member 30 can be arranged in the transmission groove 23, so that the first elastic arm 31 and the second elastic arm 32 of the elastic member 30 can abut against in the transmission groove 23. In this way, the connecting structure is hidden in the transmission groove 23, so as to prevent the structure from being loose due to exposure.

[0044] Of course, a connecting sleeve structure can also be arranged outside the drive shaft, a connecting shaft is arranged on the transmission seat, the connecting sleeve is sleeved outside the connecting shaft, and then the first abutting portion and the second abutting portion are arranged outside the connecting shaft, the linkage portion is arranged inside the connecting sleeve and abuts against the first abutting portion, and the elastic member can also be arranged in the connecting sleeve and abuts against the first elastic arm and the linkage portion, and the second elastic arm can also abut against the second abutting portion.

[0045] The connection mode of the drive shaft and the transmission seat can be selected and arranged according to actual needs, and the elastic member, the first abutting portion and the second abutting portion can be adaptively adjusted according to the actual connection structure of the drive shaft and the transmission seat.

[0046] More specifically, the abutting step 21 can be arranged on the inner circumferential wall of the transmission groove 23, the first elastic arm 31 abuts against the linkage portion, after the drive shaft 10 is arranged in the transmission groove 23, the linkage portion on the drive shaft 10 can abut against the abutting step, the first elastic arm 31 of the elastic member 30 abuts against the linkage portion, so that the linkage portion is kept in abutment against the abutting step 21, abutting linkage is realized, a larger stress surface is provided, the abutting stress is uniform, and the processing is convenient.

[0047] Further, the clamping groove 22 is arranged on the inner circumferential wall of the transmission groove 23, the second elastic arm 32 is clamped to the clamping groove 22, and the second elastic arm 32 abuts against the end wall of the clamping groove 22. In this way, the elastic member 30 is arranged in the transmission groove 23, the first elastic arm 31 of the elastic member 30 abuts against the abutting step 21, and the second elastic arm 32 of the elastic member 30 extends into the clamping groove 22 and abuts against the end wall of the clamping groove 22, so that abutment can be realized at both ends of the elastic member 30, so that the linkage portion is kept in a state of being pressed against the abutting step 21.

[0048] It should be noted that, since the first elastic arm 31 needs to be pressed against the linkage portion and then the linkage portion abuts against the abutting step 21, the abutting of the linkage portion only needs to have a receiving surface capable of receiving stress, and the abutting stress of the linkage portion is directly received by the step surface, so that a groove position does not need to be arranged, and assembly interference of the linkage portion caused by arrangement of the groove position can also be reduced. The second elastic arm 32 can be clamped by the clamping groove 22, so that the second elastic arm 32 of the elastic member 30 is kept in clamped assembly, and the situation of loosening and disengaging is reduced.

[0049] On the basis of this structure, the abutting step 21 is formed as the first abutting portion, and the clamping groove 22 can be formed as the second abutting portion.

[0050] Of course, the first abutting portion and the second abutting portion can also be respectively formed by protruding limit block structures in the transmission groove 23, the linkage portion directly abuts against the limit block structure, and the second elastic arm 32 abuts against the limit block or is connected by a through hole arranged in the limit block.

[0051] Further, the elastic member 30 in the embodiment further comprises elastic ring groups 33, one end of the first elastic arm 31 is connected to one end of the elastic ring group 33, and the second elastic arm 32 is connected to the other end of the elastic ring group 33; the elastic ring group 33 is sleeved on the drive shaft 10, and specifically, the elastic ring group 33 can be one elastic ring or a plurality of elastic rings connected to each other, the first elastic arm 31 can be connected to one side of the elastic ring, and the second elastic arm 32 can be connected to the other side of the elastic ring.

[0052] In this way, when the transmission seat 20 encounters an obstacle, the external force acting on the transmission seat 20 can make the second abutting portion press the second elastic arm 32, the second elastic arm 32 is compressed under pressure, the transmission seat 20 rotates to avoid the obstacle, and at the same time, the elastic ring group 33 as a whole is subjected to a torsion force, so as to superimpose the action of the first elastic arm 31 on the linkage portion and the first abutting portion. After avoiding the obstacle, the second elastic arm 32 is reset to the reset elastic force of itself and abuts against the first elastic arm 31 and the torsion force of the elastic ring group 33, so that the reset is easier.

[0053] In addition, since the elastic ring group 33 is sleeved on the drive shaft 10, the reset or rotation of the elastic ring group 33 is centered on the drive shaft 10 as the rotation axis, so that the rotation structure is more stable.

[0054] More specifically, the elastic ring group 33 is provided with two elastic ring groups 33, one end of the two elastic ring groups 33 is connected by the first elastic arm 31, since the two elastic ring groups 33 are connected by the first elastic arm 31, the two elastic ring groups 33 are spaced apart by the first elastic arm 31, and a penetrating interval 34 can be formed. The other end of the two elastic ring groups 33 is provided with the second elastic arm 32. In this way, after the elastic member 30 is sleeved on the drive shaft 10, the two elastic ring groups 33 are sleeved on the drive shaft 10, and the linkage portion can penetrate out of the penetrating interval 34 between the two elastic ring groups 33, so that the linkage portion can abut against the first elastic arm 31. The second elastic arms 32 of the two elastic ring groups 33 can abut against the second abutting portion in the axial direction, so that when abutting, the drive shaft 10 has three abutting points in the axial direction, that is, one end of the second abutting portion abuts against one of the second elastic arms 32, the first elastic arm 31 abuts against the linkage portion and the first abutting portion, and the other end of the second abutting portion abuts against the other second elastic arm 32. In this way, the linkage structure is more stable.

[0055] Of course, the elastic member 30 described above can also be formed in an arc-shaped elastic sheet, both ends of the elastic sheet are formed into the first elastic arm 31 and the second elastic arm 32, and the elastic sheet extends along the rotation track of the drive shaft 10; or it can be a spring, the spring is arranged along the rotation track of the drive shaft 10, and both ends of the spring abut to the linkage part and the second abutting part of the drive shaft 10, respectively. The specific structure of the elastic member 30 can be selected and arranged according to actual needs.

[0056] Further, the included angle between the line from the first abutting part to the center of the rotation track of the drive shaft and the line from the second abutting part to the center of the rotation track of the drive shaft is A, and the specific included angle A is 90°-270°. Specifically, the distribution positions of the first elastic arm and the second elastic arm are matched with the first abutting part and the second abutting part. When the included angle A is 90° or 270°, the distribution positions of the first abutting part and the second abutting part on the circumference are separated by 90°. In this way, the distribution angles of the first elastic arm and the second elastic arm of the first abutting part and the second abutting part abutting against each other are also 90°. After corresponding abutment, the two abutment fulcrums are relatively close to each other. In this way, the abutting structure is more secure and is not prone to looseness.

[0057] When the included angle A is 180°, the distribution positions of the first abutting part and the second abutting part on the circumference are on a straight line passing through the shaft center. The abutment of the first elastic arm and the second elastic arm of the first abutting part and the second abutting part abutting against each other is located on the symmetric two sides of the shaft center. That is, the abutment can be kept stable, and there is more space for later resetting, which is more flexible.

[0058] Further, the linkage sleeve 12 is sleeved on the drive shaft 10, and the linkage block 11 protrudes in the circumferential direction of the linkage sleeve 12. The linkage block 11 is formed as a linkage part. In this way, when the drive shaft 10 and the transmission seat 20 are assembled, the drive shaft 10 is inserted into the transmission groove 23, and then the linkage sleeve 12 is sleeved on the shaft end of the drive shaft 10 inserted into the transmission groove 23. The protruding linkage block 11 interferes with the structure of the transmission seat 20 during assembly, and is convenient to disassemble and assemble.

[0059] Of course, the linkage part described above can also be a clamping spring structure directly clamped on the outside of the drive shaft 10, or a protruding block structure directly machined on the outside of the drive shaft 10, or a stepped structure arranged on the outside of the drive shaft 10. In short, any structure that can abut against the first abutting part can be selected.

[0060] Further, the linkage block 11 can be provided with an abutting clamping groove 111. In this way, the first elastic arm 31 can be clamped into the abutting clamping groove 111, and the first elastic arm 31 can be kept in the clamped state with the abutting clamping groove 111 to prevent loosening. In this way, the abutting state of the linkage block 11 and the first abutting part is more stable.

[0061] Of course, the perforated structure can also be provided on the linkage block 11, and the first elastic arm 31 can also be inserted into the perforation of the linkage block 11 to prevent the unstable abutting state caused by the loosening of the first elastic arm 31 and the linkage block 11.

[0062] Further, since the linkage block 11 is arranged on the linkage sleeve 12, and the linkage sleeve 12 is assembled with the driving shaft 10 instead of being directly formed, the linkage sleeve 12 is prone to relative rotation with the driving shaft 10 during use, and therefore the first limiting plane 121 can be arranged in the linkage sleeve 12, and the second limiting plane 13 is arranged outside the driving shaft 10, and after the linkage sleeve 12 is sleeved on the driving shaft 10, the first limiting plane 121 abuts against the second limiting plane 13 to prevent the rotation of the linkage sleeve 12 and the driving shaft 10, that is, the linkage block 11 of the linkage sleeve 12 will not be in a state of relative rotation with the driving shaft 10 when subjected to the force of the first elastic arm 31, and the linkage structure is stable.

[0063] Of course, the reverse structure of the linkage block 11 and the driving shaft 10 can also be connected by means of a flat key or a spline connection structure, and the reverse rotation can also be achieved.

[0064] Embodiment 2,

[0065] Referring to Figures 1-6 A cleaning device comprising a driving member 40, a cleaning member, and the transmission assembly in Embodiment 1, the driving member 40 is used to drive the driving shaft 10 to rotate, and the cleaning member is connected to the transmission seat 20. The driving member 40 can be a driving member 40 of a cleaning robot in the prior art. During cleaning, the transmission seat 20 is driven to rotate by the driving member 40, so that the cleaning member on the transmission seat 20 can be swung out, so that the cleaning robot can clean during movement.

[0066] When the cleaning device is used, the driving shaft 10 is driven to rotate by the driving member 40 of the cleaning device during cleaning. Specifically, the rotation direction of the driving shaft 10 has a first direction and a second direction opposite to the first direction, such as a clockwise direction and a counterclockwise direction. Specifically, the first abutting portion, the linkage portion, the first elastic arm 31, the second elastic arm 32, and the second abutting arm are sequentially distributed on the rotation track of the driving shaft 10.

[0067] When the driving shaft 10 rotates around the first direction, the linkage part of the driving shaft 10 acts on the first elastic arm 31, and then is transmitted to the second elastic arm 32 through the elastic member 30, and the second elastic arm 32 keeps the abutting state with the second abutting part at this time, so that the transmission seat 20 can be swung out in the first direction, and the cleaning member connected thereto can also be swung out in the first direction, that is, the swinging out of the transmission seat is transmitted to the second elastic arm after the first elastic arm of the elastic member is stressed, and then is applied to the second abutting part of the transmission seat, so that the swinging out force of the transmission seat is more flexible than the direct transmission swinging out.

[0068] When the driving shaft 10 rotates around the second direction, the linkage part of the driving shaft can directly act on the first abutting part to drive the transmission seat to rotate around the second direction, and at this time, the first elastic arm and the second elastic arm of the elastic member keep the stable abutting state with the linkage part of the driving shaft and the second abutting part, so that the cleaning member can be stably swung back in the second direction. It should be noted that if the first direction is the swinging out cleaning direction of the cleaning member, the second direction opposite to the first direction is the swinging back direction of the cleaning member.

[0069] Since in the swinging out state, the linkage part of the driving shaft 10 acts on the first elastic arm 31 of the elastic member 30, so that the second elastic arm 32 of the elastic member 30 acts on the second abutting part. In the swinging back state, the linkage part of the driving shaft 10 directly acts on the first abutting part of the transmission seat, and at the same time, the first elastic arm of the elastic member 30 can also press the linkage part by the elastic stress of itself, so that the linkage part abuts against the first abutting part of the transmission seat 20, and the second elastic arm 32 of the elastic member 30 abuts against the second abutting part. In this way, the elastic member 30 can abut against the transmission seat 20 at different positions on the rotation track of the driving shaft 10 through the first elastic arm 31 and the second elastic arm 32, and the first elastic arm 31 can keep the linkage part between the first abutting part and the first elastic arm 31.

[0070] Therefore, in the present application, the first elastic arm 31 and the second elastic arm 32 of the elastic member 30 can abut against at different positions, so that the linkage part of the driving shaft 10 can keep the stable abutting assembly state, and thus the driving shaft 10 can stably drive the transmission seat 20 to realize linkage, and the cleaning member on the transmission seat 20 can be swung out and swung back synchronously, which is beneficial to keeping the cleaning member in the abutting state to the edge, dead angle and other places, and improves the cleaning effect.

[0071] If the transmission seat 20 encounters an obstacle, the obstacle will exert an external force to the transmission seat 20, and when the external force acting on the transmission seat 20 is large enough, the second abutting portion will force the second elastic arm 32 to overcome the elastic stress of the second elastic arm 32, that is, the second abutting portion of the transmission seat 20 will compress the second elastic arm 32, in this case, the transmission seat 20 will rotate within the compression stroke of the second elastic arm 32 to avoid the obstacle; at the same time, the other first elastic arm 31 of the driving elastic member 30 will superimpose the rotation force of the second elastic arm 32 to more tightly abut the linkage to make the linkage maintain the abutting state with the first abutting portion.

[0072] After the obstacle is misaligned, the second elastic arm 32 can be reset, and the rebounding force of the first elastic arm 31 is superimposed to realize rapid return and maintain the use state of the abutting linkage.

[0073] It should be noted that the cleaning member can be formed by a cleaning brush, a cleaning roller or a cleaning cloth disc in the prior art. The cleaning device can be a sweeping robot, a mopping robot, a sweeping and mopping integrated robot, etc. In this embodiment, the cleaning member is taken as a cleaning cloth disc as an example, which is rotatably connected to the transmission seat 20 through a connecting shaft, and a cleaning driving structure such as a motor and a gear transmission mechanism is arranged in the transmission seat 20 to drive the connecting shaft of the cleaning cloth disc to rotate, and the cleaning cloth disc realizes cleaning during rotation.

[0074] Of course, other structures in this embodiment are the same as those in Embodiment 1, the action principle and effect of the cleaning device are the same as those in Embodiment 1, and the driving member 40 of the cleaning robot and other structures such as the travel driving of the cleaning robot belong to the prior art, which will not be described in detail.

[0075] The technical means disclosed in the utility model scheme is not limited to the technical means disclosed in the above embodiments, and also includes technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the technical field, without departing from the principle of the utility model, some improvements and refinements can be made, and these improvements and refinements are also considered as the protection scope of the utility model.

Claims

1. A drive assembly of a cleaning device, characterized in that, The utility model relates to a transmission assembly and a cleaning device, and belongs to the technical field of cleaning device. Drive shaft, be equipped with linkage on the drive shaft; Transmission seat, the transmission seat is rotatable with drive shaft is connected, transmission seat is equipped with first abutment and second abutment, first abutment and second abutment are spaced distribution on the rotation track of drive shaft, linkage is used for first abutment abutment, to make transmission seat with drive shaft linkage; Elastic member, the elastic member is connected to the drive shaft or the transmission seat;The elastic member has a first elastic arm and a second elastic arm, the first elastic arm is used to abut against the linkage under the action of its elastic stress, so that the linkage keeps abutting with the first abutment; The second elastic arm is used to keep abutting with the second abutment under the action of its elastic stress.

2. A drive assembly for a cleaning device according to claim 1, wherein, Transmission groove is equipped on the transmission seat, the drive shaft is worn in the transmission groove, and the linkage is located in the transmission groove;The first abutment and the second abutment are both arranged in the transmission groove.

3. A drive assembly for a cleaning device according to claim 2, wherein, The first abutment includes an abutment step, the inner wall of the transmission groove is provided with the abutment step, the first elastic arm abuts against the linkage to drive the linkage to abut against the abutment step.

4. The drive assembly of a cleaning device of claim 2, wherein, The second abutment includes a clamping groove, the inner wall of the transmission groove is provided with the clamping groove, the second elastic arm is clamped into the clamping groove and abuts against the end wall of the clamping groove;The clamping groove is formed as the second abutment.

5. The drive assembly of a cleaning device of claim 1, wherein, The elastic member further includes an elastic ring group, the first elastic arm is connected to one end of the elastic ring group, and the second elastic arm is connected to the other end of the elastic ring group;The elastic ring group is sleeved outside the drive shaft.

6. A drive assembly for a cleaning device according to claim 5, wherein, The elastic ring group is provided with two, one end of the two elastic ring groups is connected by the first elastic arm, so that the two elastic ring groups have a penetrating interval;The other end of the two elastic ring groups is provided with the second elastic arm;Two elastic ring groups are sleeved outside the drive shaft, so that the linkage passes through the penetrating interval and abuts against the first elastic arm.

7. A drive assembly for a cleaning device according to any one of claims 1 to 6, wherein, The first abutment to the center line of the rotation track of the drive shaft and the second abutment to the center line of the rotation track of the drive shaft form an angle of 90°-270°;The distribution position of the first elastic arm and the second elastic arm matches the first abutment and the second abutment.

8. A drive assembly for a cleaning device according to any one of claims 1 to 6, wherein, The drive shaft is sleeved with a linkage sleeve, and the linkage sleeve is circumferentially provided with a linkage block;The linkage block is formed as the linkage.

9. A drive assembly for a cleaning device according to claim 8, wherein, The linkage block is provided with an abutting clamping groove;The first elastic arm is clamped into the abutting clamping groove.

10. The drive assembly of the cleaning device of claim 8, wherein, The linkage sleeve is provided with a first limiting plane, and the drive shaft is provided with a second limiting plane;The first limiting plane is used to abut against the second limiting plane after the linkage sleeve is sleeved outside the drive shaft, so as to prevent the relative rotation of the linkage sleeve and the drive shaft.

11. A cleaning device characterized by The utility model relates to a transmission assembly and a cleaning device, and belongs to the technical field of cleaning device. The drive member is used to drive the drive shaft to rotate, and the cleaning member is connected to the transmission seat.

Images