Transmission apparatus and cleaning device

Abstract

Provided are a transmission apparatus (120) and a cleaning device (100). The transmission apparatus (120) comprises a swing assembly (121), the swing assembly (121) comprising a swing arm, and the swing arm having an extended first operation position and a retracted second operation position; a drive assembly (122), the drive assembly (122) being used for driving the swing arm to switch between the first operation position and the second operation position; and a cleaning component (123), the cleaning component (123) being connected to one end of the swing arm. By providing a first cam (1213) and a second cam (1221), the cleaning device (100) using the transmission apparatus (120) can, upon encountering an obstacle when traveling along a wall or when the cleaning component (123) is extended, retract the cleaning component (123), thereby improving the flexibility of the cleaning device (100) and reducing the collision of the cleaning component (123) and of the swing arm, prolonging the service life of the cleaning device (100), and enhancing cleaning experience for users.

Description

Transmission and cleaning equipment

[0001] Cross-references

[0002] This application claims priority to Chinese patent application No. 202311091096.2, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the technical field of transmission devices, and in particular to a transmission device and a cleaning device. Background Art

[0004] With the iterative updates and development of technology, self-cleaning equipment has entered the lives of ordinary families and has gradually become popular.

[0005] Among the current self-cleaning devices, there is one that has the function of mopping the floor. However, the transmission structure in the current self-cleaning device is simple in design and single in function, and can only drive the mop to rotate for cleaning. In order to expand the cleaning range, the mopping cleaning component will extend out of the projection range of the cleaning device body. When encountering obstacles, the movement of the cleaning device is affected. At the same time, because the extended cleaning part is usually relatively weak, frequent collisions may even affect the service life of the cleaning device.

[0006] Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0008] To this end, a first aspect of the present invention provides a transmission device.

[0009] A second aspect of the present invention provides a cleaning device.

[0010] In view of this, according to a first aspect of an embodiment of the present application, a transmission device is proposed, comprising:

[0011] a swing assembly comprising a swing arm and a first cam connected to the swing arm, the swing arm having a first operating position of extending and a second operating position of retracting;

[0012] The driving assembly includes a second cam and a driving component, and the second cam is connected to the driving component.

[0013] The second cam interacts with the first cam, and the first cam abuts against the second cam during the switching of the swing arm between the first operating position and the second operating position;

[0014] A cleaning element is connected to one end of the swing arm.

[0015] In one possible implementation,

[0016] When the swing arm is in the first operating position, the second cam is separated from the first cam.

[0017] In one possible implementation,

[0018] The second cam has an extreme position. When the swing arm switches from the first operating position to the second operating position, the second cam rotates toward the extreme position. When the swing arm reaches the second operating position, the second cam has not reached the extreme position and continues to rotate toward the extreme position until the second cam reaches the extreme position.

[0019] In a feasible implementation, it further includes:

[0020] an anti-wear structure, wherein the anti-wear structure is provided on the first cam;

[0021] and / or,

[0022] Set on the second cam.

[0023] In a feasible embodiment, the anti-wear structure includes:

[0024] The first anti-wear structure is a metal protective layer. The first anti-wear structure is arranged on the first cam. The first anti-wear structure is arranged on the contact surface between the first cam and the second cam.

[0025] In a feasible embodiment, the anti-wear structure further includes:

[0026] The second anti-wear structure is a roller structure, the second anti-wear structure is arranged on the second cam, and the second anti-wear structure is arranged on the end surface of the second cam in contact with the first cam.

[0027] In a feasible embodiment, the second cam is arranged on the output end of the driving component, so that the driving component drives the second cam to rotate;

[0028] or,

[0029] The output end of the driving component is drivingly connected to the second cam.

[0030] In a feasible embodiment, the second cam includes an abutment portion, and the abutment portion abuts against the swing assembly (121);

[0031] When the second cam is in transmission connection with the driving component, it further comprises a sector-shaped tooth portion, and the driving assembly is engaged with the sector-shaped tooth portion.

[0032] In a feasible embodiment, the second cam further includes:

[0033] An arc surface is provided on the abutting portion, and when the swing arm switches to the second operating position, the arc surface is tangent to the first cam.

[0034] In a feasible embodiment, the driving component includes:

[0035] Drive motor;

[0036] a driving gear, the driving gear being disposed at an output end of the driving motor and meshing with the sector-shaped tooth portion, so that the driving motor drives the second cam to rotate via the driving gear, thereby driving the swing arm of the swing assembly to rotate from the first operating position to the second operating position;

[0037] In a feasible implementation, it further includes:

[0038] An elastic member acts on the swing arm, and the swing arm is switched from the second operating position to the first operating position under the action of the elastic member.

[0039] In a feasible implementation, it further includes:

[0040] a buffer member, the buffer member being arranged on the elastic member;

[0041] and / or,

[0042] At the rotating shaft of the first cam.

[0043] In a feasible embodiment, the buffer component includes:

[0044] The first buffer is a shaft damping member, and the first buffer is arranged at the shaft of the first cam. When the swing arm switches between the first operating position and the second operating position, the first buffer slows down the rotation speed of the first cam.

[0045] In a feasible embodiment, the buffer component includes:

[0046] The second buffer is arranged inside the elastic member. When the swing arm switches between the first operating position and the second operating position, the first buffer slows down the rebound speed of the elastic member.

[0047] In a feasible implementation manner, the swing arm is provided with shock-absorbing soft rubber.

[0048] In a feasible embodiment, the elastic member is connected to the first cam;

[0049] and / or,

[0050] The elastic member is connected to the swing arm.

[0051] In a feasible embodiment, when the elastic member is connected to the first cam, a connecting portion is provided on a circumferential side of the first cam, and the connecting portion is used to be connected to the elastic member.

[0052] In a feasible embodiment, the first cam has a first direction and a second direction when rotating. When the first cam rotates along the first direction under the drive of the driving assembly, the swing arm switches from the first operating position to the second operating position.

[0053] In a feasible embodiment, when the swing arm switches from the first operating position to the second operating position, the elastic member stores energy.

[0054] In a feasible embodiment, it further includes: when the elastic member releases stored energy, the swing arm is switched from the second operating position to the first operating position.

[0055] In a feasible embodiment, the swing assembly further includes:

[0056] A first cam is coaxially arranged with the swing arm.

[0057] In a feasible implementation, it further includes:

[0058] The housing is provided, one end of the elastic member is fixed relative to the housing, and the swing arm is arranged outside the housing.

[0059] In a feasible implementation, it further includes:

[0060] The position detection device is used to detect the rotation position of the second cam, and the driving component rotates or stops rotating according to the detection result of the position detection device.

[0061] In a feasible implementation manner, the position detection device includes:

[0062] a first photoelectric switch;

[0063] The second photoelectric switch, the first photoelectric switch and the second photoelectric switch are respectively arranged on both sides of the second cam.

[0064] In a feasible embodiment, the second cam further includes:

[0065] First baffle;

[0066] a second baffle, wherein the first baffle and the second baffle are respectively arranged on both sides of the abutting portion;

[0067] The first baffle is used to be inserted into the first photoelectric switch, so that the first photoelectric switch changes the detection signal;

[0068] The second baffle is used to be inserted into the second photoelectric switch, so that the second photoelectric switch changes the detection signal.

[0069] In a feasible implementation, it further includes:

[0070] A first limiting member and a second limiting member are provided on the circumferential side of the first cam, and the first cam includes a convex portion. When the swing arm moves to the first operating position, the convex portion of the first cam approaches the first limiting member. When the swing arm moves to the second operating position, the cam of the first cam approaches the second limiting member. The first limiting member and the second limiting member are used to abut against the convex portion of the first cam to limit the rotation of the first cam.

[0071] According to a second aspect of an embodiment of the present application, a cleaning device is provided, comprising:

[0072] Machine body;

[0073] The transmission device of any of the above items, wherein the transmission device is provided on the machine body;

[0074] When the swing arm moves to the first operating position, the cleaning element exceeds the projection of the machine body onto the ground;

[0075] When the swing arm moves to the second operating position, at least a portion of the cleaning element enters the projection of the machine body onto the ground.

[0076] Compared with the prior art, the present invention includes at least the following beneficial effects: an embodiment of the present application discloses a transmission device and a cleaning device, the transmission device includes a swing assembly, the swing assembly includes a swing arm and a first cam, the first cam is connected to the swing arm, the swing arm has a first extended operating position and a second retracted operating position; a drive assembly, the drive assembly includes a second cam and a drive component, the second cam is connected to the drive component. The second cam interacts with the first cam, and the first cam abuts against the second cam during the switching of the swing arm between the first operating position and the second operating position; the cleaning element, the cleaning element is connected to one end of the swing arm, and during the movement of the cleaning device, if an obstacle is encountered, the driving component drives the second cam to rotate, the second cam abuts against the first cam, driving the first cam to rotate, and the first cam is connected to the swing arm, driving the swing arm to rotate, so that the swing arm switches from the extended first operating position to the retracted second operating position. The present invention achieves complex functions through a simple structure. Only through the setting of the first cam and the second cam, the cleaning equipment using the transmission device can realize the retraction of the cleaning element when encountering an obstacle along the wall or during the extension process, thereby improving the flexibility of the cleaning equipment, while reducing the collision of the cleaning element and the swing arm, extending the service life of the cleaning equipment, and improving the user's cleaning experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0078] FIG1 is a structural block diagram of a transmission device according to an embodiment of the present application when the swing arm is in a second operating position;

[0079] FIG2 is a schematic structural diagram of a transmission device when a swing arm moves from a second operating position to a first operating position according to an embodiment of the present application;

[0080] FIG3 is a schematic structural diagram of a transmission device when a swing arm moves from a second operating position to a first operating position according to an embodiment of the present application;

[0081] FIG4 is a schematic structural diagram of a transmission device according to an embodiment of the present application when the swing arm is in a first operating position;

[0082] FIG5 is a schematic structural diagram of a transmission device with a second anti-wear structure according to an embodiment of the present application;

[0083] FIG6 is a schematic structural diagram of a transmission device with a buffer member according to an embodiment of the present application from another angle;

[0084] FIG7 is a schematic structural diagram of a transmission device with a buffer member according to an embodiment of the present application;

[0085] FIG8 is a schematic structural diagram of a cleaning device according to an embodiment of the present application when the swing arm is in a second operating position;

[0086] FIG9 is a schematic structural diagram of a cleaning device according to an embodiment of the present application when the swing arm is in a first operating position.

[0087] The corresponding relationship between the reference numerals and component names in Figures 1-9 is as follows: 100, cleaning device; 110, machine body; 120, transmission device; 121, swing assembly; 122, driving assembly; 123, cleaning element; 124, position detection device; 125, first limiter; 126, second limiter; 127, anti-wear structure; 128, buffer member; 129, housing; 1212, elastic member; 1213, first cam; 1221, second cam; 1222, driving member; 1241, first photoelectric switch; 1242, second photoelectric switch; 1271, first anti-wear structure; 1272, second anti-wear structure; 12211, sector tooth portion; 12212, abutting portion; 12213, first baffle; 12214, second baffle; 12215, arc surface; 12221. Driving motor; 12222. Driving gear. DETAILED DESCRIPTION

[0088] In order to better understand the above technical solution, the technical solution of the embodiment of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiment of the present application and the specific features in the embodiment are detailed descriptions of the technical solution of the embodiment of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiment of the present application and the technical features in the embodiment can be combined with each other.

[0089] As shown in Figures 1-6, according to the first aspect of the embodiment of the present application, a transmission device 120 is proposed, comprising: a swing assembly 121, wherein the swing assembly 121 comprises a swing arm and a first cam 1213, wherein the first cam 1213 is connected to the swing arm, and the swing arm has a first operating position of extension and a second operating position of retraction; a driving assembly 122, wherein the driving assembly 122 comprises a second cam 1221 and a driving component 1222, wherein the second cam 1221 is connected to the driving component 1222. The second cam 1221 interacts with the first cam 1213, and when the swing arm switches between the first operating position and the second operating position, the first cam 1213 abuts against the second cam 1221; and a cleaning element 123, wherein the cleaning element 123 is connected to one end of the swing arm.

[0090] The cleaning element 123 can generally be a flexible, absorbent material such as fabric or sponge. In this embodiment, the cleaning element 123 can be a self-rotating cleaning element 123, a vibrating cleaning element 123, or a fixed cleaning element 123. Specifically, the cleaning element 123 can be a tray, and the cleaning element 123 removes stains from the floor through rotation.

[0091] The swing assembly 121 contacts the driving assembly 122 during the process of driving the swing arm to switch between the first operating position and the second operating position, thereby driving the cleaning element 123 to move.

[0092] Among them, the extended state of the first operating position is specifically that the swing arm drives the cleaning element 123 to extend out of the projection area of ​​the machine body 110 or away from the machine body 110, and the retracted state of the second operating position is specifically that the swing arm drives the cleaning element 123 to approach the machine body 110 or retract into the projection area of ​​the machine body 110.

[0093] Among them, Figure 1 shows a schematic diagram of the structure of the transmission device 120 when the swing arm is in the first operating position, and Figures 1, 2, 3 and 4 show schematic diagrams of the structure of the transmission device 120 when the swing arm is transferred from the first operating position to the second operating position. Therefore, the transmission device 120 can be applied to the field of home cleaning. During the movement of the cleaning device 100, if an obstacle is encountered, the driving component 1222 drives the second cam 1221 to rotate, and the second cam 1221 abuts against the first cam 1213, driving the first cam 1213 to rotate, and the first cam 1213 abuts against the swing arm. The arms are connected to each other, driving the swing arm to rotate, so that the swing arm switches from the extended first operating position to the retracted second operating position. The present invention realizes complex functions through a simple structure. Through the setting of the first cam 1213 and the second cam 1221, the cleaning device 100 using the transmission device 120 can achieve the retraction of the cleaning element 123 when it encounters an obstacle along the wall or extended during the movement, thereby improving the flexibility of the cleaning device 100, while reducing the collision of the cleaning element 123 and the swing arm, extending the service life of the cleaning device 100, and improving the user's cleaning experience.

[0094] As shown in FIG. 1 , when the swing arm is in the first operating position, the second cam 1221 is separated from the first cam 1213 .

[0095] This arrangement ensures that when the cleaning element 123 collides, the force it transmits only reaches the first cam 1213 and will not be transmitted to the driving component 1222 through the second cam 1221, thereby reducing the force on the driving component 1222 and protecting the driving component 1222. At the same time, it absorbs part tolerances and prevents the swing arm from failing to extend to the first operating position.

[0096] As shown in Figures 3-4, the second cam 1221 has an extreme position. When the swing arm switches from the first operating position to the second operating position, the second cam 1221 rotates toward the extreme position. When the swing arm reaches the second operating position, the second cam 1221 has not reached the extreme position and continues to rotate toward the extreme position until the second cam 1221 reaches the extreme position.

[0097] When the swing arm reaches the second operating position, the second cam 1221 continues to rotate until it reaches the limit position of the second cam 1221. The additional travel path of the second cam 1221 can absorb part tolerances, ensuring that the swing arm can switch to the second operating position and avoiding the situation where the cleaning element 123 fails to retract into place.

[0098] As shown in FIG. 5-6 , the transmission device 120 further includes an anti-wear structure 127 , which is disposed on the first cam 1213 and / or on the second cam 1221 .

[0099] The anti-wear structure 127 includes:

[0100] The first anti-wear structure 1271 is a metal protective layer. The first anti-wear structure 1271 is arranged on the first cam 1213 . The first anti-wear structure 1271 is arranged on the contact surface between the first cam 1213 and the second cam 1221 .

[0101] The anti-wear structure 127 also includes: a second anti-wear structure 1272, which is a roller structure. The second anti-wear structure 1272 is arranged on the second cam 1221, and the second anti-wear structure 1272 is arranged on the end surface of the second cam 1221 that contacts the first cam 1213.

[0102] In this technical solution, a first anti-wear structure 1271 is arranged on the contact surface between the first cam 1213 and the second cam 1221. The first anti-wear structure 1271 is a metal steel sheet, or is replaced with other wear-resistant materials, including but not limited to PK (polyether ketone) and powder metallurgy, which can reduce the wear between the two cams; the second anti-wear structure 1272 is a roller structure, which is arranged on the contact end surface of the second cam 1221 and the first cam 1213. Specifically, the number of second anti-wear structures 1272 is not fixed. It can be set only one on the end surface where the second cam 1221 and the first cam 1213 first contact, or it can be set all over the contact surface between the second cam 1221 and the first cam 1213. This setting changes sliding friction into rolling friction, thereby reducing friction.

[0103] The provision of the first anti-wear structure 1271 and the second anti-wear structure 1272 can reduce the wear of the first cam 1213 and the second cam 1221 during the operation of the transmission device 120, and can effectively extend the service life of the device.

[0104] Specifically, the second cam 1221 can be directly set on the output end of the driving component 1222, so that the driving component 1222 directly drives the second cam 1221 to rotate; the output end of the driving component 1222 can also be transmission-connected with the second cam 1221, and can also drive the second cam 1221 to rotate.

[0105] As shown in FIG. 1-4 , the second cam 1221 includes: a sector-shaped tooth portion 12211 , with which the driving assembly 122 engages; and an abutting portion 12212 , with which the swing assembly 121 abuts.

[0106] The sector-shaped teeth 12211 and the abutting portions 12212 are spaced apart and distributed around the circumference of the rotating shaft of the second cam 1221 , so that the rotation of the second cam 1221 can simultaneously drive the sector-shaped teeth 12211 and the abutting portions 12212 to rotate.

[0107] As shown in FIG1-6 , the second cam 1221 further includes:

[0108] The arc surface 12215 is provided on the abutting portion 12212 . When the swing arm switches to the second operating position, the arc surface 12215 is tangent to the first cam 1213 .

[0109] In this embodiment, when the swing arm reaches the second operating position, the first cam 1213 and the second cam 1221 enter a tangent state. At this time, the second cam 1221 has not reached the limit position, so the second cam 1221 continues to rotate. During this process, the second cam 1221 and the first cam 1213 are always in a tangent state. This setting can ensure that the second cam 1221 will not further squeeze the first cam 1213 when absorbing the tolerance of the parts. At the same time, the reaction force of the first cam 1213 is transmitted to the second cam 1221 through the cross-section, and most of it can be absorbed by the rotating shaft of the second cam 1221, and will not act on the driving component 1222, which can further extend the service life of the driving component 1222.

[0110] The force direction of the tangent point between the arc surface 12215 and the first cam 1213 passes through the rotation axis of the second cam 1221 .

[0111] When the second cam 1221 is tangent to the first cam 1213 and the force direction passes through the rotation axis of the second cam 1221, the rotation axis of the second cam 1221 will not be subjected to torque and can absorb all the reaction force of the first cam 1213, further reducing the force on the driving component 1222.

[0112] The driving component 1222 includes: a driving motor 12221; a driving gear 12222, wherein the driving gear 12222 is arranged at the output end of the driving motor 12221, and the driving gear 12222 is engaged with the fan-shaped tooth portion 12211, so that the driving motor 12221 drives the second cam 1221 to rotate through the driving gear 12222, thereby driving the swing arm of the swing assembly 121 to rotate from the first operating position to the second operating position.

[0113] 1-4 , the drive motor 12221 rotates in one direction, such as clockwise or counterclockwise, to drive the drive gear 12222. Due to the meshing of the sector-shaped tooth portion 12211 and the drive gear 12222, the sector-shaped tooth portion 12211 can drive the second cam 1221 to rotate, thereby driving the abutment portion 12212 to rotate. In this embodiment, the abutment portion 12212 abuts against the first cam 1213, thereby pushing the first cam 1213 to rotate. Since the first cam 1213 is coaxially arranged with the swing arm, the swing arm can rotate synchronously with the first cam 1213, thereby driving the swing arm and the cleaning element 123 mounted on the swing arm to move.

[0114] As shown in Figures 1-4, the swing assembly 121 also includes: an elastic member 1212, which is connected to the swing arm. Under the action of the elastic member 1212, the swing arm can switch from the second operating position to the first operating position.

[0115] As shown in Figures 1-4, the driving component 122 drives the cleaning element 123 to move to the second operating position through the swing arm. At this time, the force applied by the driving component 122 to the swing arm is opposite to the direction of the force applied by the elastic member 1212 to the swing arm, and then the swing arm is locked by two opposite forces to prevent the swing arm from swinging, thereby preventing the cleaning element 123 from moving with the swing arm during the cleaning process.

[0116] When the swing arm is in the first operating position, the elastic member 1212 is also in an extended state, and the swing arm is locked by the deformation recovery force to prevent the swing arm from shaking frequently during movement.

[0117] Specifically, the elastic member 1212 may be a tension spring, a torsion spring, an elastic sheet, etc. In this embodiment, the elastic member 1212 is taken as a tension spring as an example.

[0118] As shown in FIG. 7 , the transmission device 120 further includes a buffer member 128 , and the buffer member 128 is disposed on the elastic member 1212 and / or at the rotation axis of the first cam 1213 .

[0119] The buffer 128 includes a first buffer and a second buffer, wherein the first buffer is a shaft damping member, and the first buffer is arranged at the shaft of the first cam 1213. When the swing arm switches between the first operating position and the second operating position, the first buffer slows down the rotation speed of the first cam 1213.

[0120] The second buffer is disposed inside the elastic member 1212 . When the swing arm switches between the first operating position and the second operating position, the first buffer slows down the rebound speed of the elastic member 1212 .

[0121] The setting of the first buffer member and the second buffer member can reduce the impact force generated by the first cam 1213 rotating faster when the elastic member 1212 releases its elastic potential energy, thereby reducing the service life of the component, and at the same time avoid safety hazards such as pinching hands and impact caused by the swing arm swinging too fast.

[0122] Specifically, the swing arm is provided with shock-absorbing soft rubber.

[0123] This can further avoid potential safety hazards such as pinching hands and collisions caused by rebound on the swing arm.

[0124] As shown in FIG. 1-4 , the elastic member 1212 is connected to the first cam 1213 ; and / or the elastic member 1212 is connected to the swing arm.

[0125] In this embodiment, the elastic member 1212 is a tension spring. One end of the elastic member 1212 can be indirectly or directly fixed to the housing 129, that is, it can be relatively stationary with the housing 129. The other end can be connected to the first cam 1213 alone, to the swing arm, or to both the first cam 1213 and the swing arm. For example, if the elastic member 1212 has a Y-shaped structure, it can be connected to both the first cam 1213 and the swing arm. Of course, it can also be connected to both the first cam 1213 and the swing arm through a connecting component such as a connecting wire.

[0126] As shown in FIG. 1-4 , in this embodiment, the elastic member 1212 is connected to the first cam 1213 , and a connecting portion is provided on the circumference of the first cam 1213 , and the connecting portion is used to connect with the elastic member 1212 .

[0127] The connecting portion may protrude outward in the radial direction of the first cam 1213 , and the elastic member 1212 is connected to the end of the connecting portion to obtain a greater torque.

[0128] The connecting portion can be integrally formed with other parts of the cam.

[0129] As shown in FIG. 1-4 , when the first cam 1213 rotates along the first direction under the drive of the driving assembly 122 , the swing arm switches from the first operating position to the second operating position.

[0130] In this technical solution, the driving assembly 122 is used to drive the first cam 1213 to rotate in a first direction to switch the cleaning element 123 from the first operating position to the second operating position. The elastic member 1212 is used to drive the first cam 1213 to rotate in a second direction to switch the cleaning element 123 from the second operating position to the first operating position.

[0131] The first direction and the second direction are two opposite directions.

[0132] As shown in Figures 1-4, when the swing arm switches from the first operating position to the second operating position, the drive assembly 122 drives the elastic member 1212 to deform via the first cam 1213 to accumulate elastic potential energy. When the elastic member 1212 releases the elastic potential energy, it can drive the swing arm to switch from the second operating position to the first operating position.

[0133] Specifically, the transmission device 120 further includes a housing 129 , one end of the elastic member 1212 is fixed relative to the housing 129 , and the swing arm is disposed outside the housing 129 .

[0134] In this embodiment, the driving gear 12222, the second cam 1221, the first cam 1213, and the elastic member 1212 are all located in the housing 129. Thus, the housing 129 provides good protection, which is beneficial to extending the service life and reliability, and at the same time, is beneficial to ensuring good transmission accuracy.

[0135] Specifically, the housing 129 may include a first upper housing and a first lower housing that are detachably connected, thereby facilitating assembly and disassembly of the housing 129, and also facilitating assembly and disassembly of the drive gear 12222, the second cam 1221, the first cam 1213, and the elastic member 1212, thereby facilitating assembly and disassembly of the drive assembly 122. Specifically, the first upper housing and the first lower housing may be detachably connected by at least one of screws, a snap-fit ​​structure, a mortise and tenon structure, and a magnetic structure.

[0136] As shown in FIG. 1-4 , the device further includes: a position detection device 124 for detecting the rotation position of the second cam 1221 , and the driving component 1222 rotates or stops rotating according to the detection result of the position detection device 124 .

[0137] Among them, the setting of the position detection device 124 can detect the rotation position of the second cam 1221, and thus can know the rotation position of the first cam 1213 in this embodiment. Therefore, when the first cam 1213 rotates to an appropriate position, such as when the first cam 1213 rotates to drive the swing arm to move to the first operating position or the second operating position, the drive motor 12221 stops rotating according to the detection result of the position detection device 124 at this time, and can keep the swing arm in the first operating position or the second operating position to achieve accurate switching of the first operating position or the second operating position. It is understandable that when the first cam 1213 rotates and the swing arm does not move to the first operating position or the second operating position, the drive motor 12221 can continue to rotate according to the detection result of the position detection device 124 at this time, so as to drive the swing arm to continue to move in the direction close to the target operating position, such as the first operating position or the second operating position.

[0138] The position detection device 124 may include a photoelectric switch, a mechanical switch, or other detection mechanisms that meet the requirements.

[0139] As shown in Figures 1-4, the position detection device 124 includes: a first photoelectric switch 1241; a second photoelectric switch 1242, the first photoelectric switch 1241 and the second photoelectric switch 1242 being respectively disposed on either side of the second cam 1221. The second cam 1221 also includes: a first baffle 12213; and a second baffle 12214, the first baffle 12213 and the second baffle 12214 being respectively disposed on either side of the abutting portion 12212. The first baffle 12213 is configured to be inserted into the first photoelectric switch 1241, thereby causing the first photoelectric switch 1241 to change its detection signal; and the second baffle 12214 is configured to be inserted into the second photoelectric switch 1242, thereby causing the second photoelectric switch 1242 to change its detection signal.

[0140] In this embodiment, a first photoelectric switch 1241 and a second photoelectric switch 1242 are respectively provided on both sides of the second cam 1221, so that the two photoelectric switches can be used to respectively detect whether the swing arm has reached the first operating position and the second operating position, thereby improving the accuracy of detecting whether the swing arm has reached the target operating position.

[0141] The photoelectric switch generally includes a light emitting part and a light receiving part. Whether the light receiving part can receive the light signal of the light emitting part can change the detection signal of the photoelectric switch. By arranging the first baffle 12213 and the second baffle 12214 on the second cam 1221, the rotation of the second cam 1221 can drive the first baffle 12213 and the second baffle 12214 to rotate synchronously. The first baffle 12213 and the second baffle 12214 are distributed on both sides of the abutment portion 12212. When the second cam 1221 rotates to a suitable position, the first baffle 12213 is inserted into the first photoelectric switch 1241 to change the detection signal of the first photoelectric switch 1241. For example, the first baffle 12213 is located between the light emitting part and the light receiving part of the first photoelectric switch 1241 to prevent the light receiving part from receiving the light signal emitted by the light emitting part, so that the first photoelectric switch 1241 changes the detection signal, indicating that the first cam 1213 rotates to a suitable position, so that the swing arm is in the first operating position. At this time, the telescopic drive member can stop rotating according to the detection signal of the first photoelectric switch 1241 to keep the swing arm in the first operating position.

[0142] When the second cam 1221 rotates to a suitable position, the second baffle 12214 is inserted into the second photoelectric switch 1242 to make the second photoelectric switch 1242 change the detection signal. For example, the second baffle 12214 is located between the light emitting part and the light receiving part of the second photoelectric switch 1242 to prevent the light receiving part from receiving the light signal emitted by the light emitting part, so that the second photoelectric switch 1242 changes the detection signal. This indicates that the first cam 1213 rotates to a suitable position, so that the swing arm is in the second operating position. At this time, the drive motor 12221 can stop rotating according to the detection signal of the second photoelectric switch 1242 to keep the swing arm in the second operating position.

[0143] In some feasible embodiments, the transmission device further includes: a rotation angle detection device, which is arranged on the drive motor 12221 and is used to detect the rotation angle of the output shaft of the drive motor 12221. The drive motor 12221 also rotates or stops rotating according to the detection result of the rotation angle detection device.

[0144] The distance detection device is configured to detect the rotation angle of the output shaft of the drive motor 12221, thereby determining the rotation angle of the drive gear 12222, the rotation angle of the second cam 1221, and, in turn, the rotation angle of the first cam 1213. Thus, when the first cam 1213 rotates to a suitable angle, such as when the first cam 1213 rotates to the first operating position or the second operating position via the swing arm, the drive motor 12221 stops rotating based on the detection result of the angle detection device at that time, thereby maintaining the swing arm in the first operating position or the second operating position to achieve accurate switching between the first operating position or the second operating position. It is understood that when the first cam 1213 rotates but does not drive the swing arm to the first operating position or the second operating position, the drive motor 12221 can continue to rotate based on the detection result of the angle detection device at that time, thereby driving the swing arm to continue moving in a direction closer to the target operating position, such as the first operating position or the second operating position.

[0145] As shown in Figures 1-4, in some possible embodiments provided by the present disclosure, a first limit member 125 and a second limit member 126 are provided on the circumference of the first cam 1213. When the swing arm moves to the first operating position, the convex portion of the first cam 1213 approaches the first limit member 125. When the swing arm moves to the second operating position, the convex portion of the first cam 1213 approaches the second limit member 126. The first limit member 125 and the second limit member 126 are used to abut against the convex portion of the first cam 1213 to limit the rotation of the first cam 1213.

[0146] Thus, the rotation of the first cam 1213 can be limited. For example, after the first cam 1213 rotates to a suitable position, the convex portion of the first cam 1213 abuts the first limiting member 125, preventing the first cam 1213 from moving further toward the first limiting member 125, thereby allowing the swing arm to reliably and accurately maintain the first operating position. At the same time, after the first cam 1213 rotates to a suitable position, the convex portion of the first cam 1213 abuts the second limiting member 126, preventing the first cam 1213 from moving further toward the second limiting member 126, thereby allowing the swing arm to reliably and accurately maintain the second operating position.

[0147] It can be understood that in this state, even if the driving component 122 continues to drive, under the action of the first limit member 125 or the second limit member 126, the first cam 1213 will not continue to rotate. Therefore, even when the position detection device 124 and the angle detection device fail, the swing arm can be reliably maintained in the first operating position or the second operating position, achieving double confirmation and improving the accuracy and reliability of the cleaning element 123 reaching the target operating position.

[0148] As shown in Figures 8-9, according to the second aspect of an embodiment of the present application, a cleaning device 100 is proposed, comprising a machine body 110; a transmission device 120 as described in any one of the above items, wherein the transmission device 120 is arranged on the machine body 110; when the swing arm moves to the first operating position, the cleaning element 123 exceeds the projection of the machine body 110 onto the ground.

[0149] The projections of the cleaning element 123 when the swing arm is in the first operating position and the second operating position are at different positions of the projection area of ​​the machine body 110 .

[0150] As shown in Figures 8-9, when the swing arm is in the second operating position, at least a portion of the projection of the cleaning element 123 is within the projection area of ​​the machine body 110. As shown in Figures 8-9, when the swing arm is in the first operating position, at least a portion of the projection of the cleaning element 123 is outside the projection area of ​​the machine body 110. It can be understood that at least a portion of the cleaning element 123 when the swing arm is in the first operating position and the second operating position can be located within the projection area of ​​the machine body 110, but their positions are different. The essential difference is that the area of ​​the cleaning element 123 that exceeds the projection area of ​​the machine body 110 when the swing arm is in the first operating position is larger than the area of ​​the cleaning element 123 that exceeds the projection area of ​​the machine body when the swing arm is in the second operating position.

[0151] Among them, when the swing arm is in the second operating position, at least part of the cleaning element 123 is located outside the edge projection area of ​​the machine body 110, so that the cleaning range of the cleaning element 123 can exceed the edge of the walking range of the machine body 110, thereby achieving comprehensive cleaning of the corner positions that the machine body 110 cannot fit, so as to increase the cleaning range of the cleaning element 123 and improve the cleaning effect of the cleaning equipment 100.

[0152] When the swing arm is in the second operating position, the cleaning element 123 can be completely located outside the edge projection area of ​​the machine body 110, or partially located outside the edge projection area of ​​the machine body 110, which can be set according to the specific structure.

[0153] Among them, when the swing arm is in the first operating position, the cleaning element 123 can be located within the edge projection area of ​​the machine body 110, so that the cleaning range of the cleaning element 123 can be located within the walking range of the machine body 110. Thus, the area within the walking range of the machine body 110 can be mopped. As a result, the possibility of the cleaning element 123 protruding out of the machine body 110 and colliding with obstacles can be reduced, which is conducive to improving the service life and reliability of the cleaning element 123.

[0154] Furthermore, the swing arm can be selectively driven to switch between the first operating position and the second operating position according to whether the cleaning device 100 needs to mop corners. For example, the swing arm can be switched to the first operating position so that the cleaning element 123 can perform conventional wet cleaning operations and can also perform wet cleaning operations on corners. The swing arm can be moved to the second operating position so that the cleaning element 123 can avoid obstacles when encountering obstacles, thereby meeting different functional requirements and improving the intelligence of the cleaning device 100.

[0155] In the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0156] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0157] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0158] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A transmission device, characterized in that: include: A swing assembly (121), the swing assembly (121) comprising a swing arm and a first cam (1213), the first cam (1213) being connected to the swing arm, the swing arm having a first operating position of extending and a second operating position of retracting; A driving assembly (122), wherein the driving assembly (122) comprises a second cam (1221) and a driving component (1222), wherein the second cam (1221) and the driving component (1222) are connected; The second cam (1221) interacts with the first cam (1213), and during the switching process of the swing arm between the first operating position and the second operating position, the first cam (1213) abuts against the second cam (1221); A cleaning element (123), wherein the cleaning element (123) is connected to one end of the swing arm.

2. The transmission device according to claim 1, characterized in that: When the swing arm is in the first operating position, the second cam (1221) is separated from the first cam (1213).

3. The transmission device according to claim 1, characterized in that: The second cam (1221) has an extreme position. When the swing arm switches from the first operating position to the second operating position, the second cam (1221) rotates toward the extreme position. When the swing arm reaches the second operating position, the second cam (1221) has not reached the extreme position and continues to rotate toward the extreme position until the second cam (1221) reaches the extreme position.

4. The transmission device according to claim 1, characterized in that: Also includes: an anti-wear structure (127), wherein the anti-wear structure (127) is disposed on the first cam (1213); and / or, Set on the second cam (1221).

5. The transmission device according to claim 4, characterized in that: The anti-wear structure (127) comprises: The first anti-wear structure (1271) is a metal protective layer. The first anti-wear structure (1271) is arranged on the first cam (1213). The first anti-wear structure (1271) is arranged on the contact surface between the first cam (1213) and the second cam (1221).

6. The transmission device according to claim 4, characterized in that: The anti-wear structure (127) further comprises: A second anti-wear structure (1272), wherein the second anti-wear structure (1272) is a roller structure, wherein the second anti-wear structure (1272) is arranged on the second cam (1221), and wherein the second anti-wear structure (1272) is arranged on the end surface where the second cam (1221) contacts the first cam (1213).

7. The transmission device according to claim 1, characterized in that: The second cam (1221) is arranged on the output end of the driving component (1222), so that the driving component (1222) drives the second cam (1221) to rotate; or, The output end of the driving component (1222) is drivingly connected to the second cam (1221).

8. The transmission device according to claim 1, characterized in that: The second cam (1221) comprises an abutment portion (12212), and the abutment portion (12212) abuts against the swing assembly (121); The second cam (1221) is drivingly connected to the driving component (1222), and further comprises a sector-shaped tooth portion (12211), and the driving component (122) is meshed with the sector-shaped tooth portion (12211).

9. The transmission device according to claim 8, characterized in that: The second cam (1221) further comprises: An arc surface (12215), wherein the arc surface (12215) is arranged on the abutment portion (12212), and when the swing arm is switched to the second operating position, the arc surface (12215) is tangent to the first cam (1213).

10. The transmission device according to claim 9, characterized in that : The force direction of the tangent point between the arc surface (12215) and the first cam (1213) passes through the rotation axis of the second cam (1221).

11. The transmission device according to claim 8, characterized in that: The driving component (1222) comprises: Drive motor (12221); A driving gear (12222), wherein the driving gear (12222) is disposed at an output end of the driving motor (12221), and the driving gear (12222) is meshed with the sector-shaped tooth portion (12211), so that the driving motor (12221) drives the second cam (1221) to rotate via the driving gear (12222), thereby driving the swing arm of the swing assembly (121) to rotate from the first operating position to the second operating position.

12. The transmission device according to claim 1, characterized in that: Also includes: An elastic member (1212), wherein the elastic member (1212) acts on the swing arm, and the swing arm is switched from the second operating position to the first operating position under the action of the elastic member (1212).

13. The transmission device according to claim 12, characterized in that: Also includes: A buffer member (128), wherein the buffer member (128) is disposed on the elastic member (1212); and / or, At the rotation axis of the first cam (1213).

14. The transmission device according to claim 13, characterized in that: The buffer member (128) comprises: A first buffer, the first buffer is a shaft damping member, the first buffer is arranged at the shaft of the first cam (1213), and the first buffer is configured to slow down the rotation speed of the first cam (1213) when the swing arm switches between the first operating position and the second operating position.

15. The transmission device according to claim 13, characterized in that: The buffer member (128) comprises: A second buffer member, wherein the second buffer member is arranged inside the elastic member (1212), and the first buffer member is configured to slow down the rebound speed of the elastic member (1212) when the swing arm switches between the first operating position and the second operating position.

16. The transmission device according to claim 13, characterized in that: The swing arm is provided with shock-absorbing soft rubber.

17. The transmission device according to claim 12, characterized in that: The elastic member (1212) is connected to the first cam (1213); and / or, The elastic member (1212) is connected to the swing arm.

18. The transmission device according to claim 12, characterized in that: The elastic member (1212) is connected to the first cam (1213), and a connecting portion is provided on the circumference of the first cam (1213), and the connecting portion is used to be connected to the elastic member (1212).

19. The transmission device according to claim 12, characterized in that: The first cam (1213) has a first direction and a second direction when rotating. When the first cam (1213) is driven by the driving component (122) to rotate along the first direction, the swing arm switches from the first operating position to the second operating position.

20. The transmission device according to claim 12, characterized in that: When the swing arm switches from the first operating position to the second operating position, the elastic member (1212) stores energy.

21. The transmission device according to claim 12, characterized in that: Also includes: When the elastic member (1212) releases stored energy, the swing arm is switched from the second operating position to the first operating position.

22. The transmission device according to claim 1, characterized in that: The first cam (1213) is coaxially arranged with the swing arm.

23. The transmission device according to claim 12, characterized in that: Also includes: A housing (129), one end of the elastic member (1212) is relatively fixed to the housing (129), and the swing arm is arranged outside the housing (129).

24. The transmission device according to claim 8, characterized in that Also includes: The position detection device (124) is used to detect the rotation position of the second cam (1221), and the driving component (1222) rotates or stops rotating according to the detection result of the position detection device (124).

25. The transmission device according to claim 24, characterized in that The position detection device (124) comprises: A first photoelectric switch (1241); A second photoelectric switch (1242), wherein the first photoelectric switch (1241) and the second photoelectric switch (1242) are respectively arranged on both sides of the second cam (1221).

26. The transmission device according to claim 25, characterized in that The second cam (1221) further comprises: A first baffle (12213); a second baffle (12214), wherein the first baffle (12213) and the second baffle (12214) are respectively arranged on both sides of the abutting portion (12212); The first baffle (12213) is used to be inserted into the first photoelectric switch (1241), so that the first photoelectric switch (1241) changes the detection signal; The second baffle (12214) is used to be inserted into the second photoelectric switch (1242), so that the second photoelectric switch (1242) changes the detection signal.

27. The transmission device according to claim 1, characterized in that: A first limiting member (125) and a second limiting member (126) are provided on the circumferential side of the first cam (1213); the first cam (1213) includes a convex portion; when the swing arm moves to the first operating position, the convex portion of the first cam (1213) approaches the first limiting member (125); when the swing arm moves to the second operating position, the cam of the first cam (1213) approaches the second limiting member (126); the first limiting member (125) and the second limiting member (126) are used to abut against the convex portion of the first cam (1213) to limit the rotation of the first cam (1213).

28. A cleaning device, characterized in that: include: Machine body (110); The transmission device (120) according to any one of claims 1 to 27, wherein the transmission device (120) is arranged on the machine body (110); When the swing arm moves to the first operating position, the cleaning element (123) exceeds the projection of the machine body (110) onto the ground; When the swing arm moves to the second operating position, at least a portion of the cleaning element (123) enters the projection of the machine body (110) onto the ground.

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