A transmission and cleaning apparatus

Abstract

The application relates to the technical field of transmission devices, and discloses a transmission device and a cleaning device, wherein the transmission device comprises a swing assembly, the swing assembly comprises a swing arm, the swing arm has a first operating position of extension and a second operating position of retraction; a driving assembly is used for driving the swing arm to switch between the first operating position and the second operating position; and a cleaning element is connected to one end of the swing arm. Through the arrangement of the first cam and the second cam, the cleaning device applying the transmission device can realize the retraction of the cleaning element when obstacles are encountered during wall following or extension, the flexibility of the cleaning device is improved, the knocking of the cleaning element and the swing arm is reduced, the service life of the cleaning device is prolonged, and the cleaning experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of transmission device technology, and more particularly to a transmission device and a cleaning device. Background Technology

[0002] With the iteration and development of technology, self-cleaning devices have entered ordinary household life and have gradually become widespread.

[0003] Among current self-cleaning devices, there is one with a mopping function. However, the transmission structure of current self-cleaning devices is simple in design and has a single function. It can only drive the mop to rotate for cleaning. In order to expand the cleaning range, the mopping cleaning component will extend beyond the projection range of the main body of the cleaning device. When it encounters obstacles, it will affect the movement of the cleaning device. At the same time, since the extended cleaning part is usually relatively thin, frequent collisions may even affect the service life of the cleaning device. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, a first aspect of the present invention provides a transmission device.

[0006] A second aspect of the present invention provides a cleaning device.

[0007] In view of this, a transmission device is provided according to a first aspect of the embodiments of this application, comprising:

[0008] A swing assembly, the swing assembly including a swing arm and a first cam, the first cam being connected to the swing arm, the swing arm having an extended first operating position and a retracted second operating position;

[0009] A drive assembly, the drive assembly including a second cam and a drive component, the second cam being connected to the drive component.

[0010] The second cam interacts with the first cam, and during the switching of the swing arm between the first operating position and the second operating position, the first cam abuts against the second cam;

[0011] A cleaning element is attached to one end of the swing arm.

[0012] In one feasible implementation,

[0013] When the swing arm is in the first operating position, the second cam separates from the first cam.

[0014] In one feasible implementation,

[0015] The second cam has a limit position. When the swing arm switches from the first operating position to the second operating position, the second cam rotates towards the limit position. When the swing arm reaches the second operating position, the second cam has not reached the limit position and continues to rotate towards the limit position until the second cam reaches the limit position.

[0016] In one feasible implementation, it further includes:

[0017] A wear-resistant structure is disposed on the first cam;

[0018] And / or,

[0019] It is located on the second cam.

[0020] In one feasible implementation, the wear-resistant structure includes:

[0021] The first wear-resistant structure is a metal protective layer. The first wear-resistant structure is disposed on the first cam and on the contact surface between the first cam and the second cam.

[0022] In one feasible implementation, the wear-resistant structure further includes:

[0023] The second wear-resistant structure is a roller structure, which is disposed on the second cam and on the end face of the second cam that contacts the first cam.

[0024] In one feasible embodiment, the second cam is disposed on the output end of the drive component, so that the drive component drives the second cam to rotate.

[0025] or,

[0026] The output end of the drive component is connected to the second cam drive.

[0027] In one possible implementation, the second cam includes an abutment portion that abuts against the oscillating assembly (121);

[0028] When the second cam is connected to the drive component, it also includes a sector tooth, and the drive component meshes with the sector tooth.

[0029] In one feasible implementation, the second cam further includes:

[0030] An arc surface is provided on the abutment portion, and when the swing arm switches to the second operating position, the arc surface is tangent to the first cam.

[0031] In one feasible implementation, the drive component includes:

[0032] Drive motor;

[0033] A drive gear is disposed at the output end of the drive motor. The drive gear meshes with the sector teeth so that the drive motor drives the second cam to rotate through the drive gear, thereby driving the swing arm of the swing assembly to rotate from the first operating position to the second operating position.

[0034] In one feasible implementation, it further includes:

[0035] An elastic element acts on the swing arm, and the swing arm switches from a second operating position to a first operating position under the action of the elastic element.

[0036] In one feasible implementation, it further includes:

[0037] A buffer element, wherein the buffer element is disposed on the elastic element;

[0038] And / or,

[0039] At the shaft of the first cam.

[0040] In one feasible implementation, the buffer includes:

[0041] The first buffer is a pivot damping component, which is located at the pivot 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.

[0042] In one feasible implementation, the buffer includes:

[0043] The second buffer is disposed 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.

[0044] In one feasible implementation, the swing arm is provided with shock-absorbing soft rubber.

[0045] In one feasible implementation, the elastic element is connected to the first cam;

[0046] And / or,

[0047] The elastic element is connected to the swing arm.

[0048] In one feasible implementation, when the elastic element is connected to the first cam, a connecting portion is provided on the periphery of the first cam, and the connecting portion is used to connect with the elastic element.

[0049] In one feasible implementation, the first cam has a first direction and a second direction when it rotates, and when the first cam rotates along the first direction under the drive of the drive assembly, the swing arm switches from the first operating position to the second operating position.

[0050] In one feasible implementation, the elastic element stores energy when the swing arm switches from the first operating position to the second operating position.

[0051] In one feasible implementation, the method further includes: when the elastic element releases stored energy, the swing arm switches from the second operating position to the first operating position.

[0052] In one feasible implementation, the oscillating component further includes:

[0053] A first cam is coaxially arranged with the swing arm.

[0054] In one feasible implementation, it further includes:

[0055] The housing has one end of the elastic element fixed relative to the housing, and the swing arm is disposed outside the housing.

[0056] In one feasible implementation, it further includes:

[0057] A position detection device is used to detect the rotational position of the second cam, and the drive component rotates or stops rotating according to the detection result of the position detection device.

[0058] In one feasible implementation, the position detection device includes:

[0059] First photoelectric switch;

[0060] The second photoelectric switch is disposed on both sides of the second cam, and the first photoelectric switch and the second photoelectric switch are respectively disposed on both sides of the second cam.

[0061] In one feasible implementation, the second cam further includes:

[0062] First baffle;

[0063] The second baffle is provided on both sides of the abutment portion, and the first baffle and the second baffle are respectively provided on both sides of the abutment portion;

[0064] The first baffle is used to be inserted into the first photoelectric switch, thereby causing the first photoelectric switch to change the detection signal;

[0065] The second baffle is used to insert into the second photoelectric switch, thereby causing the second photoelectric switch to change the detection signal.

[0066] In one feasible implementation, it further includes:

[0067] The first cam is provided with a first limiting member and a second limiting member on its periphery. The first cam includes a protrusion. When the swing arm moves to the first operating position, the protrusion 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 protrusion of the first cam to limit the rotation of the first cam.

[0068] A second aspect of the embodiments of this application provides a cleaning device, comprising:

[0069] Machine body;

[0070] The transmission device described in any of the above embodiments, wherein the transmission device is disposed on the machine body;

[0071] When the swing arm moves to the first operating position, the cleaning element extends beyond the projection of the machine body onto the ground;

[0072] 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.

[0073] Compared with the prior art, the present invention has at least the following beneficial effects: The embodiments of this application disclose 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, and the swing arm has an extended first operating position and a retracted second 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. During the switching process of the swing arm between the first and second operating positions, the first cam abuts against the second cam. The cleaning element is connected to one end of the swing arm. 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, causing the first cam to rotate. The first cam is connected to the swing arm, causing the swing arm to rotate, so that the swing arm switches from the extended first operating position to the retracted second operating position. This invention achieves complex functions with a simple structure. By simply setting the first and second cams, the cleaning device using this transmission device can retract the cleaning element when encountering obstacles along the wall or during the extension process, improving the flexibility of the cleaning device. At the same time, it reduces the collision between the cleaning element and the swing arm, extends the service life of the cleaning device, and improves the user's cleaning experience. Attached Figure Description

[0074] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0075] Figure 1 A structural block diagram of a transmission device provided in this application when the swing arm is in the second operating position;

[0076] Figure 2 A schematic diagram of the transmission device for moving the swing arm from the second operating position to the first operating position according to an embodiment of this application;

[0077] Figure 3 A schematic diagram of the transmission device for moving the swing arm from the second operating position to the first operating position according to an embodiment of this application;

[0078] Figure 4 A schematic diagram of the transmission device provided in this application when the swing arm is in the first operating position;

[0079] Figure 5 A schematic diagram of a transmission device with a second wear-resistant structure according to an embodiment of this application is provided;

[0080] Figure 6 Another angle structural schematic diagram of a transmission device with a buffer element according to an embodiment of this application;

[0081] Figure 7 A schematic diagram of a transmission device with a buffer element according to an embodiment of this application;

[0082] Figure 8 A schematic diagram of the structure of a cleaning device with the swing arm in the second operating position according to an embodiment of this application;

[0083] Figure 9 This is a schematic diagram of the structure of a cleaning device with the swing arm in the first operating position according to an embodiment of this application.

[0084] in, Figure 1-9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0085] 100. Cleaning equipment;

[0086] 110. Machine body; 120. Transmission device;

[0087] 121. Swing assembly; 122. Drive assembly; 123. Cleaning element; 124. Position detection device; 125. First limiting element; 126. Second limiting element; 127. Wear-resistant structure; 128. Buffer element; 129. Housing;

[0088] 1212, Elastic element; 1213, First cam;

[0089] 1221. Second cam; 1222. Drive component;

[0090] 1241. First photoelectric switch; 1242. Second photoelectric switch;

[0091] 1271. First wear-resistant structure; 1272. Second wear-resistant structure;

[0092] 12211. Sector-shaped teeth; 12212. Abutting part; 12213. First baffle; 12214. Second baffle; 12215. Arc surface;

[0093] 12221, drive motor; 12222, drive gear. Detailed Implementation

[0094] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0095] like Figure 1-6 As shown, a transmission device 120 is provided according to a first aspect of the present application, comprising: a swing assembly 121, the swing assembly 121 including a swing arm and a first cam 1213 connected to the swing arm, the swing arm having an extended first operating position and a retracted second operating position; a drive assembly 122, the drive assembly 122 including a second cam 1221 and a drive component 1222, the second cam 1221 being connected to the drive component 1222. The second cam 1221 interacts with the first cam 1213, and during the switching of the swing arm 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 connected to one end of the swing arm.

[0096] The cleaning element 123 can typically be a flexible material with absorbency, such as a fabric or sponge. In this solution, the cleaning element 123 can be a self-rotating cleaning element, a vibrating cleaning element, or a fixed cleaning element. Specifically, the cleaning element 123 can be a mop, and it removes stains from the floor through rotational motion.

[0097] In this process, the swing assembly 121 contacts the drive assembly 122 during the switching of the drive swing arm between the first operating position and the second operating position, thereby driving the cleaning element 123 to move.

[0098] Specifically, the extended state of the first operating position is that the swing arm drives the cleaning element 123 to extend out of the projected area of ​​the machine body 110 or away from the machine body 110. Specifically, the retracted state of the second operating position is that the swing arm drives the cleaning element 123 to approach the machine body 110 or retract into the projected area of ​​the machine body 110.

[0099] in, Figure 1 This diagram shows the structure of the transmission device 120 when the swing arm is in the first operating position. Figure 1 , Figure 2 , Figure 3 and Figure 4 A schematic diagram of the transmission device 120 is shown when the swing arm moves from the first operating position to the second operating position. Thus, this transmission device 120 can be applied to the home cleaning field. During the movement of the cleaning device 100, if an obstacle is encountered, the drive component 1222 drives the second cam 1221 to rotate. The second cam 1221 abuts against the first cam 1213, causing the first cam 1213 to rotate. The first cam 1213 is connected to the swing arm, causing the swing arm to rotate, thus switching the swing arm from the extended first operating position to the retracted second operating position. This invention achieves complex functions with a simple structure. Through the arrangement of the first cam 1213 and the second cam 1221, the cleaning device 100 using this transmission device 120 can retract the cleaning element 123 when encountering obstacles along a wall or during its extension process, improving the flexibility of the cleaning device 100, reducing collisions between the cleaning element 123 and the swing arm, extending the service life of the cleaning device 100, and improving the user's cleaning experience.

[0100] like Figure 1 As shown, when the swing arm is in the first operating position, the second cam 1221 is separated from the first cam 1213.

[0101] This setting ensures that when the cleaning element 123 collides, the force it transmits only goes up to the first cam 1213 and will not be transmitted to the drive component 1222 through the second cam 1221. This reduces the force on the drive component 1222, protects the drive component 1222, and absorbs part tolerances to prevent the swing arm from not extending properly when it extends to the first operating position.

[0102] like Figure 3-4 As shown, the second cam 1221 has a limit position. When the swing arm switches from the first operating position to the second operating position, the second cam 1221 rotates towards the limit position. When the swing arm reaches the second operating position, the second cam 1221 has not reached the limit position and continues to rotate towards the limit position until the second cam 1221 reaches the limit position.

[0103] When the swing arm reaches the second operating position, the second cam 1221 continues to rotate until it reaches its limit position. The extra travel path of the second cam 1221 can absorb the part tolerance, ensuring that the swing arm can switch to the second operating position and preventing the cleaning element 123 from not retracting properly.

[0104] like Figure 5-6 As shown, the transmission device 120 also includes an anti-wear structure 127, which is disposed on the first cam 1213; and / or disposed on the second cam 1221.

[0105] The wear-resistant structure 127 includes:

[0106] The first wear-resistant structure 1271 is a metal protective layer. The first wear-resistant structure 1271 is disposed on the first cam 1213 and on the contact surface between the first cam 1213 and the second cam 1221.

[0107] The wear-resistant structure 127 further includes a second wear-resistant structure 1272, which is a roller structure. The second wear-resistant structure 1272 is disposed on the second cam 1221 and on the end face of the second cam 1221 that contacts the first cam 1213.

[0108] In this technical solution, the first wear-resistant structure 1271 is disposed on the contact surface between the first cam 1213 and the second cam 1221. The first wear-resistant structure 1271 is a metal steel sheet, or it can be replaced with other wear-resistant materials, including but not limited to PK and powder metallurgy, which can reduce the wear between the two cams. The second wear-resistant structure 1272 is a roller structure, disposed on the contact end face between the second cam 1221 and the first cam 1213. Specifically, the number of the second wear-resistant structures 1272 is not fixed. It can be disposed only on the end face where the second cam 1221 and the first cam 1213 first contact, or it can be disposed on the base surface of the second cam 1221 and the first cam 1213. This arrangement changes sliding friction to rolling friction, reducing friction.

[0109] The first wear-resistant structure 1271 and the second wear-resistant structure 1272 can reduce the wear generated during the operation of the transmission device 120 of the first cam 1213 and the second cam 1221, and can effectively extend the service life of the device.

[0110] Specifically, the second cam 1221 can be directly mounted on the output end of the drive component 1222 so that the drive component 1222 can directly drive the second cam 1221 to rotate; the output end of the drive component 1222 can also be connected to the second cam 1221 for transmission, and can also drive the second cam 1221 to rotate.

[0111] like Figure 1-4 As shown, the second cam 1221 includes: a sector tooth 12211, which is engaged with the drive assembly 122; and an abutment portion 12212, which abuts against the swing assembly 121.

[0112] The fan-shaped toothed portion 12211 and the abutting portion 12212 are spaced apart and distributed around the circumference of the rotating shaft of the second cam 1221, so that when the second cam 1221 rotates, it can simultaneously drive the fan-shaped toothed portion 12211 and the abutting portion 12212 to rotate.

[0113] like Figure 1-6 As shown, the second cam 1221 further includes:

[0114] The arc surface 12215 is disposed on the abutment portion 12212. When the swing arm switches to the second operating position, the arc surface 12215 is tangent to the first cam 1213.

[0115] 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 its 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 tangent surface, and most of it can be absorbed by the rotation shaft of the second cam 1221 and will not act on the drive component 1222, which can further extend the service life of the drive component 1222.

[0116] Wherein, 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.

[0117] 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 drive component 1222.

[0118] The driving component 1222 includes: a driving motor 12221; and a driving gear 12222. The driving gear 12222 is disposed at the output end of the driving motor 12221. The driving gear 12222 meshes with the sector tooth 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.

[0119] Therefore, as Figure 1-4 As shown, the drive motor 12221 rotates in one direction, such as clockwise or counterclockwise, driving the drive gear 12222 to rotate. Since the sector teeth 12211 and the drive gear 12222 mesh, the sector teeth 12211 can drive the second cam 1221 to rotate, which in turn drives the abutment portion 12212 to rotate. In this embodiment, the abutment portion 12212 abuts against the first cam 1213, pushing the first cam 1213 to rotate. Because 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.

[0120] like Figure 1-4 As shown, the swing assembly 121 further includes an elastic element 1212, which is connected to the swing arm. The swing arm switches from the second operating position to the first operating position under the action of the elastic element 1212.

[0121] like Figure 1-4 As shown, the drive assembly 122 drives the cleaning element 123 to the second operating position through the swing arm. At this time, the force applied by the drive assembly 122 to the swing arm is opposite to the force applied by the elastic element 1212 to the swing arm. Thus, the two opposite forces lock the swing arm to prevent the swing arm from swinging, thereby preventing the cleaning element 123 from moving with the swing arm during the cleaning process.

[0122] When the swing arm is in the first operating position, the elastic element 1212 is also in an extended state, locking the swing arm through deformation restoring force to prevent the swing arm from shaking frequently during travel.

[0123] Specifically, the elastic element 1212 can be a tension spring, a torsion spring, an elastic sheet, etc. In this embodiment, the elastic element 1212 is a tension spring as an example.

[0124] like Figure 7 As shown, the transmission device 120 further includes a buffer 128, which is disposed on the elastic member 1212; and / or at the shaft of the first cam 1213.

[0125] The buffer 128 includes a first buffer and a second buffer, wherein the first buffer is a pivot damping component. The first buffer is disposed at the pivot 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.

[0126] 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.

[0127] The first and second buffer components can reduce the impact force generated when the elastic element 1212 releases its elastic potential energy, which would reduce the service life of the component. At the same time, it can avoid safety hazards such as pinching or impact caused by the swing arm swinging too fast.

[0128] Specifically, the swing arm is equipped with shock-absorbing soft rubber.

[0129] This can further avoid safety hazards such as pinching or impact when the swing arm rebounds.

[0130] like Figure 1-4 As shown, the elastic element 1212 is connected to the first cam 1213; and / or the elastic element 1212 is connected to the swing arm.

[0131] In this embodiment, the elastic element 1212 is a tension spring. One end of the elastic element 1212 can be directly or indirectly fixed to the housing 129, that is, it can be kept relatively stationary with the housing 129. The other end can be connected to the first cam 1213 alone, or to the swing arm, or to both the first cam 1213 and the swing arm at the same time. For example, if the elastic element 1212 has a Y-shaped structure, it can be connected to both the first cam 1213 and the swing arm at the same time. Of course, it can also be connected to both the first cam 1213 and the swing arm at the same time through connecting components such as connecting wires.

[0132] like Figure 1-4 As shown, in this embodiment, the elastic element 1212 is connected to the first cam 1213, and the first cam 1213 has a connecting portion on its periphery, which is used to connect with the elastic element 1212.

[0133] The connecting part can protrude outward along the radial direction of the first cam 1213, and the elastic element 1212 is connected to the end of the connecting part to obtain a greater torque.

[0134] The connecting part can be integrally molded with the other parts of the cam.

[0135] like Figure 1-4 As shown, when the first cam 1213 rotates in the first direction under the drive of the drive assembly 122, the swing arm switches from the first operating position to the second operating position.

[0136] In this technical solution, the drive assembly 122 is used to drive the first cam 1213 to rotate in a first direction, so that the cleaning element 123 switches from a first operating position to a second operating position. The elastic element 1212 is used to drive the first cam 1213 to rotate in a second direction, so that the cleaning element 123 switches from the second operating position to the first operating position.

[0137] Among them, the first direction and the second direction are two opposite directions.

[0138] like Figure 1-4 As shown, when the swing arm switches from the first operating position to the second operating position, the drive assembly 122 drives the elastic element 1212 to deform via the first cam 1213, thereby accumulating elastic potential energy. When the elastic element 1212 releases its elastic potential energy, it can drive the swing arm to switch from the second operating position to the first operating position.

[0139] Specifically, the transmission device 120 also includes a housing 129, one end of the elastic element 1212 is fixed relative to the housing 129, and the swing arm is disposed outside the housing 129.

[0140] In this embodiment, the drive gear 12222, the second cam 1221, the first cam 1213, and the elastic element 1212 are all located inside the housing 129. Thus, the housing 129 provides good protection, which helps to extend the service life and reliability, and at the same time helps to ensure good transmission accuracy.

[0141] Specifically, the housing 129 may include a detachably connected first upper housing and a first lower housing, thereby facilitating the assembly and disassembly of the housing 129, as well as the assembly and disassembly of the drive gear 12222, the second cam 1221, the first cam 1213, and the elastic element 1212, thus facilitating the assembly and disassembly of the drive assembly 122. Specifically, the first upper housing and the first lower housing may be detachably connected via at least one of screws, snap-fit ​​structures, tenon and mortise structures, or magnetic structures.

[0142] like Figure 1-4 As shown, it also includes: a position detection device 124, used to detect the rotational position of the second cam 1221, and the drive component 1222 rotates or stops rotating according to the detection result of the position detection device 124.

[0143] The position detection device 124 detects the rotational position of the second cam 1221, thereby determining the rotational position of the first cam 1213 in this embodiment. When the first cam 1213 rotates to a suitable position, such as when it drives the swing arm to the first or second operating position, the drive motor 12221 stops rotating based on the detection result of the position detection device 124. This keeps the swing arm in the first or second operating position, enabling accurate switching between them. Alternatively, if the first cam 1213 rotates but the swing arm has not reached the first or second operating position, the drive motor 12221 can continue rotating based on the detection result of the position detection device 124, driving the swing arm to move closer to the target operating position, such as the first or second operating position.

[0144] The position detection device 124 may include a photoelectric switch, a mechanical switch, or other detection mechanisms that meet the requirements.

[0145] like Figure 1-4The position detection device 124 shown includes: a first photoelectric switch 1241; and a second photoelectric switch 1242, wherein the first photoelectric switch 1241 and the second photoelectric switch 1242 are respectively disposed on both sides of the second cam 1221. The second cam 1221 further includes: a first baffle 12213; and a second baffle 12214, wherein the first baffle 12213 and the second baffle 12214 are respectively disposed on both sides of the abutment portion 12212; the first baffle 12213 is used to be inserted into the first photoelectric switch 1241, thereby causing the first photoelectric switch 1241 to change its detection signal; the second baffle 12214 is used to be inserted into the second photoelectric switch 1242, thereby causing the second photoelectric switch 1242 to change its detection signal.

[0146] In this embodiment, by setting a first photoelectric switch 1241 and a second photoelectric switch 1242 on both sides of the second cam 1221 respectively, the two photoelectric switches are used to detect whether the swing arm has reached the first operating position and the second operating position respectively, thereby improving the accuracy of detecting whether the swing arm has reached the target operating position.

[0147] A photoelectric switch typically includes a light emitter and a light receiver. Whether the light receiver can receive the light signal from the light emitter changes the detection signal of the photoelectric switch. By setting a first baffle 12213 and a 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, if the first baffle 12213 is located between the light emitting part and the light receiving part of the first photoelectric switch 1241, it prevents 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. This indicates that the first cam 1213 has rotated to a suitable position, so that the swing arm is in the first operating position. At this time, the telescopic drive can stop rotating according to the detection signal of the first photoelectric switch 1241, so that the swing arm is maintained in the first operating position.

[0148] When the second cam 1221 rotates to the appropriate position, the second baffle 12214 is inserted into the second photoelectric switch 1242, causing the second photoelectric switch 1242 to change the detection signal. If the second baffle 12214 is located between the light emitting part and the light receiving part of the second photoelectric switch 1242, it prevents the light receiving part from receiving the light signal emitted by the light emitting part, causing the second photoelectric switch 1242 to change the detection signal. This indicates that the first cam 1213 has rotated to the appropriate 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, so that the swing arm is maintained in the second operating position.

[0149] In some feasible embodiments, the transmission device further includes an angle detection device disposed on the drive motor 12221 for detecting the angle of rotation of the output shaft of the drive motor 12221, and the drive motor 12221 also rotates or stops rotating according to the detection result of the angle detection device.

[0150] The distance detection device can detect the rotation angle of the output shaft of the drive motor 12221, thereby determining the rotation angle of the drive gear 12222, the second cam 1221, and consequently the rotation angle of the first cam 1213. Therefore, when the first cam 1213 rotates to a suitable angle, such as when the swing arm moves to the first or second operating position, the drive motor 12221 stops rotating based on the detection result of the angle detection device, keeping the swing arm in the first or second operating position for accurate switching. Alternatively, if the first cam 1213 rotates but the swing arm does not move to the first or second operating position, the drive motor 12221 can continue rotating based on the detection result of the angle detection device, causing the swing arm to move closer to the target operating position, such as the first or second operating position.

[0151] like Figure 1-4 As shown, in some possible embodiments provided in this disclosure, the first cam 1213 is provided with a first limiting member 125 and a second limiting member 126 on its periphery. When the swing arm moves to the first operating position, the protrusion of the first cam 1213 approaches the first limiting member 125. When the swing arm moves to the second operating position, the protrusion 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 protrusion of the first cam 1213 to limit the rotation of the first cam 1213.

[0152] Therefore, the rotation of the first cam 1213 can be limited. For example, after the first cam 1213 rotates to the appropriate position, the protrusion of the first cam 1213 abuts against the first limiting member 125, preventing the first cam 1213 from continuing to move closer to the first limiting member 125, thus ensuring that the swing arm can reliably and accurately maintain the first operating position. At the same time, after the first cam 1213 rotates to the appropriate position, the protrusion of the first cam 1213 abuts against the second limiting member 126, preventing the first cam 1213 from continuing to move closer to the second limiting member 126, thus ensuring that the swing arm can reliably and accurately maintain the second operating position.

[0153] Understandably, in this state, even if the drive assembly 122 continues to drive, the first cam 1213 will not continue to rotate under the action of the first limit member 125 or the second limit member 126. Therefore, even if 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.

[0154] like Figure 8-9 As shown, a cleaning device 100 is provided according to a second aspect of the embodiments of this application, including a machine body 110; a transmission device 120 as described in any of the preceding claims, the transmission device 120 being disposed on the machine body 110; when the swing arm moves to a first operating position, the cleaning element 123 extends beyond the projection of the machine body 110 onto the ground.

[0155] The projection of the cleaning element 123 when the swing arm is in the first operating position and the second operating position is at different positions in the projection area of ​​the machine body 110.

[0156] like Figure 8-9 As shown, 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, such as... Figure 8-9 As shown, 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 the positions are different. The essential difference is that the area of ​​the cleaning element 123 outside 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 outside the projection area of ​​the machine body 110 when the swing arm is in the second operating position.

[0157] When the swing arm is in the second operating position, at least a portion 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 extend beyond the edge of the machine body 110's travel range, thereby enabling comprehensive cleaning of corners and edges that the machine body 110 cannot reach, thereby increasing the cleaning range of the cleaning element 123 and improving the cleaning effect of the cleaning equipment 100.

[0158] When the swing arm is in the second operating position, the cleaning element 123 can be located entirely outside the edge projection area of ​​the machine body 110, or it can be located partially outside the edge projection area of ​​the machine body 110, which can be set according to the specific structure.

[0159] 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 within the walking range of the machine body 110. Thus, the area within the walking range of the machine body 110 can be mopped. This reduces the possibility of the cleaning element 123 protruding from the machine body 110 and colliding with obstacles, which is beneficial to improving the service life and reliability of the cleaning element 123.

[0160] Furthermore, depending on whether the cleaning device 100 needs to perform corner mopping, the swing arm can be selectively driven to switch between a first operating position and a second operating position. For example, switching the swing arm to the first operating position allows the cleaning element 123 to perform regular wet cleaning operations and can perform wet cleaning operations on corners. Moving the swing arm to the second operating position allows the cleaning element 123 to avoid obstacles when it encounters them, thereby meeting different functional requirements and improving the intelligence of the cleaning device 100.

[0161] In this 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 "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0162] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0163] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0164] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A transmission, characterized in that include: A swing assembly (121) includes a swing arm and a first cam (1213), the first cam (1213) being connected to the swing arm, the swing arm having an extended first operating position and a retracted second operating position; A drive assembly (122) includes a second cam (1221) and a drive component (1222), wherein the second cam (1221) is connected to the drive component (1222); The second cam (1221) interacts with the first cam (1213), and during the switching 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) 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) separates from the first cam (1213).

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

4. The transmission of claim 1, wherein Also includes: Wear-resistant structure (127), said wear-resistant structure (127) is disposed on the first cam (1213); And / or, It is located on the second cam (1221).

5. The transmission of claim 4, wherein The wear-resistant structure (127) includes: The first wear-resistant structure (1271) is a metal protective layer. The first wear-resistant structure (1271) is disposed on the first cam (1213) and 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 wear-resistant structure (127) also includes: The second wear-resistant structure (1272) is a roller structure. The second wear-resistant structure (1272) is disposed on the second cam (1221) and on the end face of the second cam (1221) that contacts the first cam (1213).

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

8. The transmission device according to claim 7, characterized in that: The second cam (1221) includes an abutment portion (12212) that abuts against the swing assembly (121); When the second cam (1221) is connected to the drive component (1222) in a transmission connection, it also includes a sector tooth (12211), and the drive component (122) meshes with the sector tooth (12211).

9. The transmission device according to claim 8, characterized in that, The second cam (1221) also includes: The arc surface (12215) is disposed on the abutment portion (12212). When the swing arm switches 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 at 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) includes: Drive motor (12221); A drive gear (12222) is disposed at the output end of the drive motor (12221). The drive gear (12222) meshes with the sector tooth (12211) so that the drive motor (12221) drives the second cam (1221) to rotate through the drive 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 element (1212) acts on the swing arm, and the swing arm switches from the second operating position to the first operating position under the action of the elastic element (1212).

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

14. The transmission device according to claim 13, characterized in that, The buffer (128) includes: The first buffer is a pivot damping component. The first buffer is located at the pivot 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).

15. The transmission device according to claim 13, characterized in that, The buffer (128) includes: 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 second buffer slows down the rebound speed of the elastic member (1212).

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

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

18. The transmission device according to claim 17, characterized in that: When the elastic element (1212) is connected to the first cam (1213), the first cam (1213) has a connecting part on its periphery, and the connecting part is used to connect with the elastic element (1212).

19. The transmission device according to claim 12, characterized in that: When the first cam (1213) rotates, it has a first direction and a second direction. When the first cam (1213) rotates along the first direction under the drive of the drive assembly (122), 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 element (1212) stores energy.

21. The transmission device according to claim 12, characterized in that, Also includes: When the elastic element (1212) releases stored energy, the swing arm switches 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: The housing (129) has one end of the elastic element (1212) fixed relative to the housing (129), and the swing arm is disposed outside the housing (129).

24. The transmission device according to claim 8, characterized in that, Also includes: A position detection device (124) is used to detect the rotational position of the second cam (1221), and the drive 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) includes: First photoelectric switch (1241); The second photoelectric switch (1242) is provided on both sides of the second cam (1221), and the first photoelectric switch (1241) and the second photoelectric switch (1242) are respectively disposed on both sides of the second cam (1221).

26. The transmission device according to claim 25, characterized in that, The second cam (1221) also includes: First baffle (12213); The second baffle (12214) is provided on both sides of the abutment portion (12212), and the first baffle (12213) and the second baffle (12214) are respectively provided on both sides of the abutment portion (12212); The first baffle (12213) is used to be inserted into the first photoelectric switch (1241), thereby causing the first photoelectric switch (1241) to change the detection signal; The second baffle (12214) is used to insert into the second photoelectric switch (1242), thereby causing the second photoelectric switch (1242) to change the detection signal.

27. The transmission device according to claim 1, characterized in that: The first cam (1213) is provided with a first limiting member (125) and a second limiting member (126) on its periphery. The first cam (1213) includes a protrusion. When the swing arm moves to the first operating position, the protrusion 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 protrusion 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) as described in any one of claims 1 to 27 is disposed on the machine body (110); When the swing arm moves to the first operating position, the cleaning element (123) extends beyond 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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