Rotary cleaning device and cleaning equipment

Abstract

The invention relates to the technical field of cleaning equipment, and provides a rotary cleaning device and the cleaning equipment. The rotary cleaning device comprises a connecting shaft and a swing arm, the swing arm is provided with a clutch reversing assembly and a transmission assembly, and the clutch reversing assembly comprises a transmission shaft, a first transmission wheel, a middle transmission wheel and a second transmission wheel, the transmission shaft and the rotating sleeve are arranged on the connecting shaft; the first transmission wheel and the second transmission wheel drive the cleaning piece to rotate in the same direction relative to the swing arm through the transmission assembly. The middle transmission wheel is in threaded connection with the transmission shaft, has a first position and a second position on the transmission shaft, is connected with the first transmission wheel at the first position and drives the swing arm to rotate forwards relative to the connecting shaft through the transmission assembly; and at the second position, the swing arm is rotationally connected with the second transmission wheel and drives the swing arm to reversely rotate relative to the connecting shaft through the transmission assembly. According to the rotary cleaning device, outward swinging and inward retracting of the cleaning piece are achieved, the rotating direction of the cleaning piece is not changed, the structure is simple, and cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a rotary cleaning device and cleaning equipment. Background Art

[0002] With the continuous improvement of people's living standards and the acceleration of the pace of life, household sweeping robots have gradually become the new favorite. Their automatic cleaning function has greatly reduced the time people spend cleaning their homes and freed up their hands. However, during the cleaning process of the sweeping robot, it cannot reach the corners of the wall, resulting in the dirt in the corners being unable to be cleaned, which has become a problem that has been troubling users and manufacturers.

[0003] In this regard, some sweeping robots are currently equipped with a side sweeper that can be swung outward. When encountering a corner, the side sweeper is swung outward to clean the corner. When crossing the corner to clean a wide area, the side sweeper is folded in to collect dirt to the lower side of the body so that it can be sucked away by the middle sweeper. However, the structure of the side sweeper of the sweeping robot in the related art is relatively complex and the cost is relatively high. Summary of the invention

[0004] The present invention provides a rotating cleaning device and a cleaning equipment, which are used to solve the problem that the side sweeping device of a sweeping robot in the prior art has a relatively complex structure and a relatively high cost.

[0005] The present invention provides a rotary cleaning device, comprising: Connecting shaft; A swing arm is provided with a clutch reversing assembly and a transmission assembly, one end of the swing arm is rotatably connected to the connecting shaft, and the other end of the swing arm is provided with a cleaning member; The clutch reversing assembly includes a transmission shaft, and a first transmission wheel, an intermediate transmission wheel and a second transmission wheel which are rotatably sleeved on the transmission shaft in sequence, and the transmission shaft and the second transmission wheel are rotatably sleeved on the connecting shaft; the first transmission wheel and the second transmission wheel are connected to the cleaning member through the transmission assembly, and are used to drive the cleaning member to rotate in the same direction relative to the swing arm; the intermediate transmission wheel is threadedly connected to the transmission shaft, and the intermediate transmission wheel can switch between the first position and the second position under the drive of the thread; When the intermediate transmission wheel is in the first position, it is coaxially connected to the first transmission wheel and can drive the swing arm to rotate in the positive direction relative to the connecting shaft through the transmission assembly; When the intermediate transmission wheel is in the second position, it is coaxially connected to the second transmission wheel and can drive the swing arm to rotate in the opposite direction relative to the connecting shaft through the transmission assembly.

[0006] According to a rotary cleaning device provided by the present invention, a first ratchet is provided at one axial end of the intermediate transmission wheel, and a second ratchet is provided at the other axial end; a first limiting structure is provided at a side of the first transmission wheel close to the intermediate transmission wheel, and a second limiting structure is provided at a side of the second transmission wheel close to the intermediate transmission wheel; When the intermediate transmission wheel is in the first position, the first ratchet engages with the first limiting structure; when the intermediate transmission wheel is in the second position, the second ratchet engages with the second limiting structure.

[0007] According to a rotary cleaning device provided by the present invention, the second transmission wheel is connected to the cleaning member through the first transmission assembly, respectively, for driving the cleaning member to rotate in the same direction relative to the swing arm; the intermediate transmission wheel is connected to the swing arm through the damping assembly, for driving the swing arm to rotate relative to the connecting shaft.

[0008] According to a rotary cleaning device provided by the present invention, the first transmission wheel and the second transmission wheel are gears, and the first transmission assembly includes: a first gear and a first gear set; The first gear set includes a plurality of transmission gears meshed in sequence along the transmission direction, the first gear meshes with the transmission gear at the power input end of the first gear set, and the transmission gear at the power output end of the first gear set is transmission-connected to the cleaning member; The first transmission wheel is meshed with the first gear, and the second transmission wheel is meshed with the transmission gear at the power input end of the first gear set.

[0009] According to a rotary cleaning device provided by the present invention, the intermediate transmission wheel is a gear, and the damping assembly includes: a second gear and a damping member; The second gear and the damping member are coaxially arranged and are both rotatably connected to the swing arm; the intermediate transmission wheel and / or the transmission gear in the first gear set are meshed with the second gear, and the damping member is axially pressed against the second gear to provide rotational resistance for the second gear.

[0010] According to a rotary cleaning device provided by the present invention, the damping member comprises: a damping wheel, an elastic member and a fixing member; The damping wheel and the second gear are coaxially arranged and rotatably connected to the swing arm; the elastic member is pressed between the fixing member and the damping wheel, and the damping wheel is pressed between the elastic member and the second gear.

[0011] A rotary cleaning device according to the present invention also includes: The fixed arm is provided with a driving mechanism, the connecting shaft is fixed to the fixed arm, and the power output end of the driving mechanism is connected to the transmission shaft for driving the transmission shaft to rotate relative to the connecting shaft.

[0012] According to a rotary cleaning device provided by the present invention, the driving mechanism comprises: a driving member and a second transmission assembly; The driving end of the driving member is connected to the power input end of the second transmission assembly. The power output end of the second transmission assembly is provided with a sleeve. The end of the transmission shaft is inserted into the sleeve and cooperates with the sleeve in a circumferential limiting manner.

[0013] The present invention further provides a cleaning device, comprising: a machine body and any one of the above-mentioned rotating cleaning devices, wherein the rotating cleaning device is installed at the bottom of the machine body through the connecting shaft.

[0014] According to a cleaning device provided by the present invention, a third limiting structure is provided at the bottom of the body, and the third limiting structure cooperates with the swing arm to limit the rotation angle of the swing arm relative to the connecting shaft.

[0015] The rotary cleaning device and cleaning equipment provided by the present invention are provided with a connecting shaft, a clutch reversing assembly and a transmission assembly, wherein the connecting shaft is used to be fixedly connected to the body of the cleaning equipment, the transmission shaft of the clutch reversing assembly is rotatably sleeved on the connecting shaft, and the first transmission wheel, the second transmission wheel and the intermediate transmission wheel of the clutch reversing assembly are rotatably sleeved on the transmission shaft; the transmission shaft is threadedly connected with the intermediate transmission wheel, so that when the transmission shaft rotates in two opposite directions, it can drive the intermediate transmission wheel to switch between the first position and the second position along the axial direction of the transmission shaft, thereby selectively connecting with the first transmission wheel or the second transmission wheel, so that the first transmission wheel and the second transmission wheel drive the cleaning member to rotate in the same direction relative to the swing arm through the transmission assembly, ensuring that the rotation direction of the cleaning member remains unchanged when the swing arm is in the outward swing and inward retracted positions. The rotary cleaning device provided in this embodiment realizes the switching of the power transmission path through the threaded connection of the transmission shaft and the intermediate transmission wheel, so as to realize that the rotation direction of the cleaning member remains unchanged when it is in the outward swing and inward retracted positions. Compared with the side sweeping device of the traditional sweeping robot, the structure is simpler, the intermediate transmission parts are reduced, and the cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1It is a schematic diagram of the swing arm of the rotary cleaning device provided by the present invention being in an outward swing position.

[0018] Figure 2 It is a schematic diagram of the swing arm of the rotary cleaning device provided by the present invention being in a retracted position.

[0019] Figure 3 It is a schematic diagram of the internal structure of the rotary cleaning device provided by the present invention.

[0020] Figure 4 It is a partial structural schematic diagram of the rotary cleaning device provided by the present invention.

[0021] Figure 5 The invention discloses a schematic assembly diagram of a clutch reversing assembly of a rotary cleaning device.

[0022] Figure 6 It is a schematic structural diagram of the intermediate transmission wheel, the first transmission wheel and the second transmission wheel of the rotary cleaning device provided by the present invention.

[0023] Figure 7 It is a schematic diagram of the assembly of the intermediate transmission wheel and the second transmission component of the rotary cleaning device provided by the present invention.

[0024] Figure 8 It is a structural schematic diagram of the second power transmission component of the rotary cleaning device provided by the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the driving mechanism of the rotary cleaning device provided by the present invention.

[0026] Fig.10 It is a cross-sectional view of the rotary cleaning device provided by the present invention.

[0027] Reference numerals: 11. Swing arm; 12. Fixed arm; 13. Connecting shaft; 2. Transmission shaft; 3. Driving mechanism; 31. Driving member; 32. Second transmission assembly; 321. Third gear; 3211. Sleeve; 322. Third gear set; 41. First transmission wheel; 411. First limiting structure; 42. Second transmission wheel; 421. Second limiting structure; 43. Intermediate transmission wheel; 431. First ratchet; 432. Second ratchet; 44. First transmission assembly; 441. First gear; 442. First gear set; 45. Damping assembly; 451. Second gear; 452. Damping member; 4521. Damping wheel; 4522. Elastic member; 4523. Fixing member; 453. Mounting shaft; 5. Cleaning member. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "first", "second" and "third" are for the purpose of clearly explaining the numbering of product components and do not represent any substantial difference. The directions or positional relationships indicated by "clockwise" and "counterclockwise" 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 element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances. In addition, the meaning of "multiple" is two or more. In the specification and claims, "and / or" means at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0030] Combine the following Figure 1-Figure 10 The rotary cleaning device and the cleaning apparatus of the present invention are described.

[0031] The cleaning device provided by the embodiment of the present invention comprises a body and a rotating cleaning device, wherein the rotating cleaning device comprises a swing arm 11, one end of the swing arm 11 is rotatably connected to the body, and the other end is provided with a rotatable cleaning member 5, and the cleaning member 5 can swing outward and retract inward with the rotation of the swing arm 11 relative to the body. The cleaning device can be a sweeping robot or a window cleaning robot, etc.

[0032] When the cleaning member 5 is swung outward, it extends relative to the machine body, which can be convenient for cleaning corners and reduce cleaning dead corners. When the cleaning member 5 is retracted, it is retracted relative to the machine body, which is suitable for conventional cleaning of a wider cleaning surface and is conducive to collecting the stolen goods to the lower side of the machine body to be sucked away by the middle sweep.

[0033] like Figure 2 and Figure 3As shown, the rotary cleaning device provided by the embodiment of the present invention comprises a swing arm 11 and a connecting shaft 13. The swing arm 11 is provided with a clutch reversing assembly and a transmission assembly, one end of the swing arm 11 is rotatably connected to the connecting shaft 13, and the other end of the swing arm 11 is provided with a cleaning member 5.

[0034] The clutch reversing assembly includes a transmission shaft 2, and a first transmission wheel 41, an intermediate transmission wheel 43, and a second transmission wheel 42 which are rotatably sleeved on the transmission shaft 2 in sequence. The transmission shaft 2 is rotatably sleeved on the connecting shaft 13. The first transmission wheel 41 and the second transmission wheel 42 are connected to the cleaning member 5 through the transmission assembly, and are used to drive the cleaning member 5 to rotate relative to the swing arm 11. The intermediate transmission wheel 43 is threadedly connected to the transmission shaft 2, and the intermediate transmission wheel 43 can be switched between the first position and the second position under the drive of the thread.

[0035] When the intermediate transmission wheel 43 is in the first position, it is coaxially connected to the first transmission wheel 41, and can drive the swing arm 11 to rotate forward relative to the connecting shaft 13 through the transmission assembly. When the intermediate transmission wheel 43 is in the second position, it is coaxially connected to the second transmission wheel 42, and can drive the swing arm 11 to rotate reversely relative to the connecting shaft 13 through the transmission assembly.

[0036] The transmission shaft 2 is used to connect with the driving mechanism 3, and the driving mechanism 3 drives the transmission shaft 2 to rotate relative to the connecting shaft 13. The connecting shaft 13 can be directly fixedly connected to the body of the cleaning device, and the driving mechanism 3 is arranged in the body. Alternatively, the connecting shaft 13 is fixedly connected to the body through the fixed arm 12, and the driving mechanism 3 is arranged in the fixed arm 12.

[0037] It is understandable that if Figure 5 As shown, the outer side of the transmission shaft 2 is provided with an external thread, and the inner side of the intermediate transmission wheel 43 is provided with an internal thread that matches the external thread of the transmission shaft 2. When the transmission shaft 2 rotates in different directions, the intermediate transmission wheel 43 can be driven to switch between the first position and the second position along the axial direction of the transmission shaft 2. The first transmission wheel 41 and the second transmission wheel 42 are connected to the power input end of the transmission assembly, and the cleaning member 5 is connected to the power output end of the transmission assembly.

[0038] When the intermediate transmission wheel 43 is in the first position, its rotational power can be coaxially transmitted to the first transmission wheel 41, and then transmitted to the cleaning member 5 by the first transmission wheel 41 and the transmission assembly. When the intermediate transmission wheel 43 is in the second position, its rotational power can be coaxially transmitted to the second transmission wheel 42, and then transmitted to the cleaning member 5 by the second transmission wheel 42 and the transmission assembly.

[0039] Specifically, when the transmission shaft 2 rotates around the first hour hand, the external thread drives the intermediate transmission wheel 43 to move to the first position, so that the intermediate transmission wheel 43 establishes a transmission connection with the first transmission wheel 41, and the intermediate transmission wheel 43 continues to rotate around the first hour hand, that is, drives the first transmission wheel 41 to rotate in the same direction. The first transmission wheel 41 drives the cleaning member 5 to rotate through the transmission assembly, and at the same time, the intermediate transmission wheel 43 also drives the swing arm 11 to rotate forward around the connecting shaft 13 through the transmission assembly, that is, rotates to the outward swing position.

[0040] When the transmission shaft 2 rotates around the second hour hand, the second hour hand is opposite to the first hour hand, and the intermediate transmission wheel 43 is driven to move to the second position through the external thread, so that the intermediate transmission wheel 43 and the second transmission wheel 42 are connected to each other, and the intermediate transmission wheel 43 continues to rotate around the second hour hand, that is, drives the second transmission wheel 42 to rotate in the same direction. The second transmission wheel 42 drives the cleaning member 5 to rotate through the transmission assembly, and at the same time, the intermediate transmission wheel 43 also drives the swing arm 11 to rotate in the opposite direction around the connecting shaft 13 through the transmission assembly, that is, rotates to the retracted position.

[0041] Wherein, the transmission assembly includes a first power input end, a second power input end and a first power output end, the first power input end and the second power input end are both connected to the first power output end, and the first power input end and the second power input end have opposite rotation directions. The first transmission wheel 41 is connected to the first power input end, the second transmission wheel 42 is connected to the second power input end, and the cleaning member 5 is connected to the first power output end. Since the first transmission wheel 41 and the second transmission wheel 42 have opposite rotation directions, the intermediate transmission wheel 43 drives the first transmission wheel 41 to rotate, and the intermediate transmission wheel 43 drives the second transmission wheel 42 to rotate. The rotation direction of the cleaning member 5 in both cases is the same, which ensures that the rotation direction of the cleaning member 5 is the same when the swing arm 11 is in the outward swing position and the inward retracted position.

[0042] The rotary cleaning device provided by the embodiment of the present invention is provided with a connecting shaft 13, a clutch reversing assembly and a transmission assembly. The connecting shaft 13 is used to be fixedly connected to the body of the cleaning equipment. The transmission shaft 2 of the clutch reversing assembly is rotatably sleeved on the connecting shaft 13. The first transmission wheel 41, the second transmission wheel 42 and the intermediate transmission wheel 43 of the clutch reversing assembly are rotatably sleeved on the transmission shaft 2. The transmission shaft 2 is threadedly connected with the intermediate transmission wheel 43, so that when the transmission shaft 2 rotates in opposite directions, the intermediate transmission wheel 43 can be driven to switch between the first position and the second position along the axial direction of the transmission shaft 2, thereby selectively connecting with the first transmission wheel 41 or the second transmission wheel 42, so that the first transmission wheel 41 and the second transmission wheel 42 drive the cleaning member 5 to rotate in the same direction relative to the swing arm 11 through the transmission assembly, thereby ensuring that the rotation direction of the cleaning member 5 remains unchanged when the swing arm 11 is in the outward swing and inward retracted positions. The rotary cleaning device provided in this embodiment realizes the switching of the power transmission path through the threaded connection between the transmission shaft 2 and the intermediate transmission wheel 43, so as to ensure that the rotation direction of the cleaning member 5 remains unchanged when in the outward swing and inward retracted positions. Compared with the side sweeping device of the traditional sweeping robot, the structure is simpler, the intermediate transmission parts are reduced, and the cost is reduced.

[0043] Alternatively, if Figure 1 and Figure 2 As shown, the rotary cleaning device also includes a fixed arm 12, which is suitable for being fixedly connected to the body of the cleaning device. A connecting shaft 13 is fixed to the fixed arm 12. The swing arm 11 and the transmission shaft 2 are sleeved on the outer side of the connecting shaft 13 and can rotate relative to the connecting shaft 13, so that the swing arm 11 can rotate relative to the fixed arm 12. Figure 1 As shown, the swing arm 11 rotates to the outward swing position relative to the fixed arm 12, so that the cleaning member 5 can be swung outward. Figure 2 As shown, the swing arm 11 rotates to the retracted position relative to the fixed arm 12, so that the cleaning member 5 is retracted.

[0044] Specifically, the swing arm 11 includes an upper shell and a lower shell, which are buckled together to form a first accommodating cavity, and the clutch reversing assembly and the transmission assembly are accommodated in the first accommodating cavity. The fixed arm 12 also includes an upper shell and a lower shell, which are buckled together to form a second accommodating cavity, and the driving mechanism 3 is accommodated in the second accommodating cavity.

[0045] Optionally, the fixed arm 12 is provided with a driving mechanism 3 , the connecting shaft 13 is fixed to the fixed arm 12 , and the power output end of the driving mechanism 3 is connected to the transmission shaft 2 for driving the transmission shaft 2 to rotate relative to the connecting shaft 13 .

[0046] Specifically, the fixed arm 12 and the swing arm 11 are both hollow shells, the intermediate transmission wheel 43, the first transmission wheel 41, the second transmission wheel 42 and the transmission assembly are all arranged in the cavity of the swing arm 11, and the driving mechanism 3 is arranged in the cavity of the fixed arm 12. The connecting shaft 13 is fixed to the fixed arm 12 and rotatably penetrates the swing arm 11. The transmission shaft 2 rotatably penetrates the fixed arm 12 and the swing arm 11, a part of the transmission shaft 2 is located in the cavity of the swing arm 11, and the other part is located in the cavity of the fixed arm 12 and is transmission-connected to the driving mechanism 3.

[0047] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, a first ratchet 431 is provided at one axial end of the intermediate transmission wheel 43, and a second ratchet 432 is provided at the other end. A first limiting structure 411 is provided on a side of the first transmission wheel 41 close to the intermediate transmission wheel 43, and a second limiting structure 421 is provided on a side of the second transmission wheel 42 close to the intermediate transmission wheel 43. When the intermediate transmission wheel 43 is in the first position, the first ratchet 431 is engaged with the first limiting structure 411. When the intermediate transmission wheel 43 is in the second position, the second ratchet 432 is engaged with the second limiting structure 421.

[0048] Specifically, when the intermediate transmission wheel 43 is switched to the first position under the action of the transmission shaft 2, the intermediate transmission wheel 43 engages with the first limiting structure 411 through the first ratchet 431, thereby establishing a coaxial transmission connection around the first hour hand, and the intermediate transmission wheel 43 rotates to drive the first transmission wheel 41 to rotate in the same direction. At this time, the second transmission wheel 42 will not rotate accordingly.

[0049] When the intermediate transmission wheel 43 is switched to the second position under the action of the transmission shaft 2, the intermediate transmission wheel 43 engages with the second limiting structure 421 through the second ratchet 432, thereby establishing a coaxial transmission connection around the second hour hand, and the intermediate transmission wheel 43 rotates to drive the second transmission wheel 42 to rotate in the same direction. At this time, the first transmission wheel 41 will not rotate accordingly.

[0050] The directions of the first clock and the second clock are determined according to the installation position of the rotating cleaning device. For example, if the rotating cleaning device is arranged on the right side of the forward direction of the sweeping robot, then the first clock is clockwise and the second clock is counterclockwise. The first transmission wheel 41 rotates clockwise to drive the swing arm 11 to rotate clockwise to the outward swing position. The second transmission wheel 42 rotates counterclockwise to drive the swing arm 11 to rotate counterclockwise to the inward position. Similarly, if the rotating cleaning device is arranged on the left side of the forward direction of the sweeping robot, the situation is opposite.

[0051] Specifically, a plurality of ribs are provided at one end of the first transmission wheel 41 close to the intermediate transmission wheel 43. The plurality of ribs are extended radially along the first transmission wheel 41. The plurality of first ratchet teeth 431 on the intermediate transmission wheel 43 are limitedly matched with the plurality of ribs in a one-to-one correspondence.

[0052] Similarly, a plurality of ribs are also provided at one end of the second transmission wheel 42 close to the intermediate transmission wheel 43. The plurality of ribs are extended radially along the second transmission wheel 42. The plurality of second ratchet teeth 432 on the intermediate transmission wheel 43 are limitedly matched with the plurality of ribs in a one-to-one correspondence.

[0053] In order to prevent mistakes during installation, both ends of the first transmission wheel 41 in the axial direction are provided with first limiting structures 411 , and both ends of the second transmission wheel 42 in the axial direction are provided with second limiting structures 421 .

[0054] In the embodiment of the present invention, the transmission assembly includes a first transmission assembly 44 , and the first transmission wheel 41 and the second transmission wheel 42 are respectively connected to the cleaning member 5 through the first transmission assembly 44 to drive the cleaning member 5 to rotate in the same direction relative to the swing arm 11 .

[0055] Specifically, the first transmission wheel 41 and the second transmission wheel 42 are gears. Accordingly, the first transmission assembly 44 connected to the first transmission wheel 41 and the second transmission wheel 42 is a gear assembly, which transmits the power of the first transmission wheel 41 and the second transmission wheel 42 to the cleaning member 5 through multi-stage gear transmission.

[0056] The gear at the power output end of the first transmission assembly 44 is coaxially connected to the cleaning member 5. For example, an outer hexagonal shaft is provided at one end of the gear at the power output end of the first transmission assembly 44 close to the cleaning member 5, and an inner hexagonal sleeve is coaxially fixed on the cleaning member 5, and the inner hexagonal sleeve is sleeved on the outer hexagonal shaft. The first transmission assembly 44 and the cleaning member 5 can be fixedly connected in the circumferential direction and detachably connected in the axial direction, which can facilitate the installation and removal of the device.

[0057] like Figure 4 As shown, the first transmission assembly 44 includes a first gear 441 and a first gear set 442. The first gear set 442 includes a plurality of transmission gears meshed in sequence along the transmission direction, the first gear 441 meshes with the transmission gear at the power input end of the first gear set 442, and the transmission gear at the power output end of the first gear set 442 is transmission-connected with the cleaning member 5. The first transmission wheel 41 meshes with the first gear 441, and the second transmission wheel 42 meshes with the transmission gear at the power input end of the first gear set 442.

[0058] The first gear 441 and each transmission gear in the first gear set 442 are rotatably connected to the swing arm 11 through a rotating shaft. The first gear 441 can be a double gear, that is, it includes two coaxially fixed gears, one of which is meshed with the first transmission wheel 41, and the other is meshed with the transmission gear at the power input end of the first gear set 442.

[0059] Specifically, the first transmission wheel 41, the first gear 441 and the first gear set 442 are meshed in sequence, and the second transmission wheel 42 is directly meshed with the first gear set 442. The cleaning member 5 is connected to the power output end of the first gear set 442. In this way, the number of gears from the first transmission wheel 41 to the cleaning member 5 is one more than the number of gears from the second transmission wheel 42 to the cleaning member 5, so that no matter whether the intermediate transmission wheel 43 is meshed with the first transmission wheel 41 or the second transmission wheel 42, the rotation direction of the cleaning member 5 remains unchanged. In this embodiment, the first transmission wheel 41 and the second transmission wheel 42 are connected to the cleaning member 5 through the gear transmission assembly, which can make the transmission connection more reliable.

[0060] The first power input end and the second power input end of the transmission assembly described in the above embodiment are the two power input ends of the first transmission assembly 44, which respectively correspond to the transmission gears of the power input end of the first gear 441 and the first gear set 442. The first power output end of the transmission assembly is the power output end of the first transmission assembly 44, that is, the transmission gear of the power output end of the first gear set 442.

[0061] In this embodiment, by providing the first gear 441 and the first gear set 442, one of the first transmission wheel 41 and the second transmission wheel 42 is driven in the same direction as the cleaning member 5, and the other is driven in the opposite direction to the cleaning member 5, thereby ensuring that the rotation direction of the cleaning member 5 remains unchanged when in the outward swing and inward retracted states. Part of the transmission components between the first transmission wheel 41 and the second transmission wheel 42 and the cleaning member 5 are shared, thereby simplifying the structure of the transmission assembly.

[0062] Specifically, if Figure 3 and Figure 4 As shown, the first gear set 442 includes four transmission gears meshing with each other in sequence, the first transmission gear meshes with the first gear 441 , and the fourth transmission gear is coaxially connected to the cleaning member 5 .

[0063] It should be noted that the first transmission wheel 41 and the second transmission wheel 42 may also be pulleys, and the first transmission wheel 41 and the second transmission wheel 42 are respectively connected to the power input end of the first transmission assembly 44 through a transmission belt.

[0064] When the cleaning device is in use, the contact between the cleaning member 5 and the cleaning surface generates a certain friction force, so that when the first transmission wheel 41 and the second transmission wheel 42 drive the cleaning member 5 to rotate through the first transmission assembly 44, a certain resistance needs to be overcome to drive the cleaning member 5 to rotate. When the friction force is large enough, when overcoming the friction force to drive the cleaning member 5 to rotate, the swing arm 11 will be forced to rotate around the connecting shaft 13, thereby achieving the outward swing or inward retraction of the swing arm 11. However, in actual use scenarios, the friction force between the cleaning member 5 and the cleaning surface may not be large enough or unstable, which may easily cause the swing arm 11 to not swing normally.

[0065] In this regard, in the embodiment of the present invention, the transmission assembly further includes a damping assembly 45. The intermediate transmission wheel 43 is connected to the swing arm 11 through the damping assembly 45, and is used to drive the swing arm 11 to rotate relative to the connecting shaft 13.

[0066] The damping assembly 45 is arranged so as to provide damping for the intermediate transmission wheel 43 to transmit the rotational power to the cleaning member 5. That is, the damping assembly 45 can be directly connected to the intermediate transmission wheel 43; or it can be indirectly connected to the intermediate transmission wheel 43 through a transmission gear in the first gear set 442.

[0067] The working principle of the rotary cleaning device is described below by taking the example that the damping assembly 45 is directly connected to the intermediate transmission wheel 43 .

[0068] See also Figure 3 When the driving mechanism 3 drives the transmission shaft 2 to rotate clockwise, the transmission shaft 2 drives the intermediate transmission wheel 43 to move to the first position and is coaxially connected with the first transmission wheel 41. The intermediate transmission wheel 43 drives the first transmission wheel 41 to rotate clockwise, and the first transmission wheel 41 drives the cleaning member 5 to rotate counterclockwise relative to the swing arm 11 through the first gear 441 and the first gear set 442. At the same time, the intermediate transmission wheel 43 is also connected to the swing arm 11 through the damping assembly 45. Due to the existence of damping, the intermediate transmission wheel 43 drives the swing arm 11 to rotate clockwise relative to the connecting shaft 13, so that the swing arm 11 performs an outward swing motion.

[0069] See also Figure 3 When the driving mechanism 3 drives the transmission shaft 2 to rotate counterclockwise, the transmission shaft 2 drives the intermediate transmission wheel 43 to move to the second position and is coaxially connected with the second transmission wheel 42. The intermediate transmission wheel 43 drives the second transmission wheel 42 to rotate counterclockwise, and the second transmission wheel 42 drives the cleaning member 5 to rotate counterclockwise relative to the swing arm 11 through the first gear set 442. At the same time, the intermediate transmission wheel 43 is also connected to the swing arm 11 through the damping assembly 45. Due to the existence of damping, the intermediate transmission wheel 43 drives the swing arm 11 to rotate counterclockwise relative to the connecting shaft 13, so that the swing arm 11 performs an inward movement.

[0070] In some embodiments of the present invention, Figure 6 As shown, the intermediate transmission wheel 43 is a gear. Figure 7 As shown, the damping assembly 45 includes a second gear 451 and a damping member 452. The second gear 451 and the damping member 452 are coaxially arranged and are both rotatably connected to the swing arm 11. The intermediate transmission wheel 43 and / or the transmission gear in the first gear set 442 are meshed with the second gear 451. The damping member 452 is axially pressed against the second gear 451 and can provide resistance for the second gear 451.

[0071] Specifically, the damping assembly 45 further includes a mounting shaft 453, and the mounting shaft 453 is fixedly connected to the swing arm 11. The second gear 451 and the damping member 452 are sleeved on the mounting shaft 453 and are rotatably connected to the mounting shaft 453. When the intermediate transmission wheel 43 is in the first position and the second position, it is in meshing state with the second gear 451. When the intermediate transmission wheel 43 drives the first transmission wheel 41 or the second transmission wheel 42 to rotate relative to the transmission shaft 2, it also drives the second gear 451 to rotate relative to the mounting shaft 453.

[0072] When the intermediate transmission wheel 43 is meshed with the second gear 451, due to the presence of the damping member 452, when the intermediate transmission wheel 43 drives the second gear 451 to rotate, the damping member 452 forms a certain resistance to the rotation of the second gear 451, thereby causing the second gear 451 to revolve relative to the intermediate transmission wheel 43, that is, driving the installation shaft 453 to rotate around the connecting shaft 13, and then driving the swing arm 11 to rotate relative to the connecting shaft 13.

[0073] Similarly, when the transmission gear in the first gear set 442 is meshed with the second gear 451, due to the presence of the damping member 452, when the transmission gear meshed with the second gear 451 rotates, the damping member 452 forms a certain resistance to the rotation of the transmission gear, thereby causing the transmission gear to revolve relative to the intermediate transmission wheel 43, that is, driving the rotating shaft of the transmission gear to rotate around the connecting shaft 13, and then driving the swing arm 11 to rotate relative to the connecting shaft 13.

[0074] The number of the damping assembly 45 can be one, and the intermediate transmission wheel 43 can be connected to the swing arm 11 through the damping assembly 45, or a transmission gear of the first gear set 442 can be connected to the swing arm 11 through the damping assembly 45. The number of the damping assembly 45 can be multiple, and the multiple gears in the first gear set 442 and the intermediate transmission wheel 43 are respectively connected to the swing arm 11 through the damping assembly 45.

[0075] It should be noted that the intermediate transmission wheel 43 can also be a pulley, and accordingly, the second gear 451 can be replaced by a pulley, and the two form a belt transmission mechanism. In this embodiment, the intermediate transmission wheel 43 is set as a gear and connected to the swing arm 11 through the second gear 451, which can make the transmission connection more reliable.

[0076] like Figure 8 As shown, in some embodiments of the present invention, the damping member 452 includes a damping wheel 4521, an elastic member 4522 and a fixing member 4523. The damping wheel 4521 and the second gear 451 are coaxially arranged and rotatably connected to the swing arm 11. The elastic member 4522 is pressed between the fixing member 4523 and the damping wheel 4521, and the damping wheel 4521 is pressed between the elastic member 4522 and the second gear 451.

[0077] The damping wheel 4521 is sleeved on the mounting shaft 453 and is rotatably connected to the mounting shaft 453. The second gear 451, the damping wheel 4521, the elastic member 4522 and the fixing member 4523 are pressed in sequence in the axial direction of the mounting shaft 453. The fixing member 4523 abuts one end surface of the damping wheel 4521 against the second gear 451 through the elastic member 4522, thereby providing resistance to the rotation of the second gear 451.

[0078] In this embodiment, the damping wheel 4521, the elastic member 4522 and the fixing member 4523 are provided, the fixing member 4523 is used to limit the axial position of the elastic member 4522, and the damping wheel 4521 is abutted against the second gear 451 through the elastic member 4522, so that the resistance of the damping wheel 4521 to the second gear 451 can be accurately set. The tension of the elastic member 4522 can be adjusted by adjusting the position of the fixing member 4523 on the installation shaft 453, thereby adjusting the damping size.

[0079] Optionally, a groove is provided at one axial end of the second gear 451, and the damping wheel 4521 is arranged in the groove, so that the circumferential side surface of the damping wheel 4521 cooperates with the side wall of the groove, and one end surface of the damping wheel 4521 cooperates with the bottom of the groove, and rotational resistance is applied to the second gear 451 through the circumferential side surface and end surface of the damping wheel 4521.

[0080] Optionally, the fixing member 4523 includes a fixing block and a clamping spring, and the clamping spring is sleeved on the installation shaft 453 and axially fixed to the installation shaft 453. The fixing block is pressed between the clamping spring and the elastic member 4522.

[0081] The mounting shaft 453 is provided with a slot, in which a retaining spring is disposed. The mounting shaft 453 may be provided with a plurality of slots at intervals along its axial direction. When the retaining spring cooperates with different slots, the fixing block exerts different pressing forces on the elastic member 4522. Thus, the pre-tightening force of the fixing block on the elastic member 4522 may be adjusted by adjusting the position of the retaining spring in the circumferential direction of the mounting shaft 453, thereby adjusting the damping magnitude of the damping wheel 4521 on the second gear 451.

[0082] Optionally, a receiving groove is provided at one end of the damping wheel 4521 away from the second gear 451, and the elastic member 4522 is received in the receiving groove. The fixed block abuts against the notch of the receiving groove of the damping wheel 4521, that is, the fixed block blocks the receiving groove, the fixed block is pressed between the clamping spring and the damping wheel 4521, and the elastic member 4522 is pressed in the receiving groove.

[0083] The elastic member 4522 is a tension spring, which is sleeved on the mounting shaft 453. The tension spring is accommodated in the receiving groove of the damping wheel 4521, and the damping size can be adjusted by replacing the elastic member 4522 with different tensions to meet the damping requirements of different products.

[0084] It should be noted that the elastic member 4522 of this embodiment is not limited to a tension spring. For example, the elastic member 4522 can also be a spring, as long as the damping wheel 4521 can apply a certain axial pressure to the second gear 451 to provide a certain rotational resistance to the second gear 451.

[0085] like Fig. 9 As shown, in some embodiments of the present invention, the driving mechanism 3 includes a driving member 31 and a second transmission assembly 32. The driving end of the driving member 31 is connected to the power input end of the second transmission assembly 32, and the power output end of the second transmission assembly 32 is coaxially connected to the transmission shaft 2.

[0086] The driving member 31 may be a motor, or a hydraulic or pneumatic driving member. The power output end of the second transmission assembly 32 may be fixedly connected to the transmission shaft 2, or may be fixedly connected to the transmission shaft 2 only in the circumferential direction, as long as the rotation of the power output end of the second transmission assembly 32 can be transmitted to the transmission shaft 2 to drive the transmission shaft 2 to rotate.

[0087] Optionally, the second transmission assembly 32 is a gear transmission assembly, see Fig. 9 The second transmission assembly 32 includes a third gear 321 and a third gear set 322. The third gear 321 is rotatably connected to the connecting shaft 13. The third gear 321 is connected to the driving member 31 through the third gear set 322.

[0088] Among them, the transmission ratio of the third gear set 322 is greater than 1, the driving member 31 is decelerated through the third gear set 322, and the power is transmitted to the third gear 321, so that the third gear 321 rotates around the connecting shaft 13, and the third gear 321 drives the transmission shaft 2 to rotate relative to the connecting shaft 13.

[0089] In the case where the rotary cleaning device is provided with a fixed arm 12, the driving member 31 and the second transmission assembly 32 are arranged in the fixed arm 12, the fixed end of the driving member 31 is fixedly connected to the fixed arm 12, and the gears of the second transmission assembly 32 are rotatably connected to the fixed arm 12 through a rotating shaft. In the case where the rotary cleaning device is not provided with a fixed arm 12, the driving member 31 and the second transmission assembly 32 are arranged in the body of the cleaning device, the fixed end of the driving member 31 is fixedly connected to the body, and the gears of the second transmission assembly 32 are rotatably connected to the body through a rotating shaft.

[0090] It should be noted that the second transmission assembly 32 may also be a belt transmission assembly, through which the transmission shaft 2 is connected to the driving member 31. In this embodiment, the second transmission assembly 32 is configured as a gear assembly, which can make the transmission connection more reliable.

[0091] Furthermore, a sleeve 3211 is provided at the power output end of the second transmission assembly 32 , and the end of the transmission shaft 2 is inserted into the sleeve 3211 and cooperates with the sleeve 3211 in a circumferential limiting manner.

[0092] In this embodiment, the power output end of the second transmission assembly 32 is circumferentially limited with the transmission shaft 2 through the sleeve 3211, so that the power output end of the second transmission assembly 32 and the transmission shaft 2 are fixedly connected in the circumferential direction and detachably connected in the axial direction, which can facilitate the installation and disassembly of the device.

[0093] As a specific example, the power output end of the second transmission assembly 32 is the third gear 321, one end of the third gear 321 is provided with a sleeve 3211, the interior of the sleeve 3211 is provided with an inner hexagonal hole, one end of the transmission shaft 2 is provided with an outer hexagonal shaft, and the third gear 321 and the transmission shaft 2 are circumferentially fixedly connected through the cooperation of the inner hexagonal hole and the outer hexagonal shaft. The sleeve 3211 can be integrally formed with the third gear 321.

[0094] The embodiment of the present invention further provides a cleaning device, comprising a body and a rotating cleaning device as described in any of the above embodiments. The rotating cleaning device is installed at the bottom of the body through a connecting shaft 13 .

[0095] Among them, a third limiting structure is provided at the bottom of the body, and the third limiting structure cooperates with the swing arm 11 to limit the rotation angle of the swing arm 11 relative to the connecting shaft 13.

[0096] Specifically, the third limiting structure includes a first limiting protrusion and a second limiting protrusion, and the first limiting protrusion and the second limiting protrusion are arranged at intervals in the swing direction of the swing arm 11. When the swing arm 11 rotates to the outward swing position until it abuts against the first limiting protrusion, the outward swing stops; at this time, the intermediate transmission wheel 43 continues to rotate and can only drive the cleaning member 5 to rotate. When the swing arm 11 rotates to the inward position until it abuts against the second limiting protrusion, it stops retracting; at this time, the intermediate transmission wheel 43 continues to rotate and can only drive the cleaning member 5 to rotate. The third limiting structure is provided to limit the rotation angle of the swing arm 11 relative to the connecting shaft 13.

[0097] Usually, a rotary cleaning device of this embodiment is respectively arranged on the left and right sides of the sweeping robot, and the two rotary cleaning devices are arranged symmetrically. When the sweeping robot runs to a corner, the swing arm of the rotary cleaning device on the side corresponding to the corner can be controlled to rotate to the outward swing position, or the swing arms of the left and right rotary cleaning devices can be controlled to rotate to the outward swing position at the same time.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary cleaning device, characterized in that: include: Connecting shaft; A swing arm is provided with a clutch reversing assembly and a transmission assembly, one end of the swing arm is rotatably connected to the connecting shaft, and the other end of the swing arm is provided with a cleaning member; The clutch reversing assembly includes a transmission shaft, and a first transmission wheel, an intermediate transmission wheel and a second transmission wheel which are rotatably sleeved on the transmission shaft in sequence, and the transmission shaft and the second transmission wheel are rotatably sleeved on the connecting shaft; the first transmission wheel and the second transmission wheel are connected to the cleaning member through the transmission assembly, and are used to drive the cleaning member to rotate in the same direction relative to the swing arm; the intermediate transmission wheel is threadedly connected to the transmission shaft, and the intermediate transmission wheel can switch between the first position and the second position under the drive of the thread; When the intermediate transmission wheel is in the first position, it is coaxially connected to the first transmission wheel and can drive the swing arm to rotate in the positive direction relative to the connecting shaft through the transmission assembly; When the intermediate transmission wheel is in the second position, it is coaxially connected to the second transmission wheel and can drive the swing arm to rotate in the opposite direction relative to the connecting shaft through the transmission assembly.

2. The rotary cleaning device according to claim 1, characterized in that: A first ratchet is provided at one axial end of the intermediate transmission wheel, and a second ratchet is provided at the other axial end; a first limiting structure is provided at a side of the first transmission wheel close to the intermediate transmission wheel, and a second limiting structure is provided at a side of the second transmission wheel close to the intermediate transmission wheel; When the intermediate transmission wheel is in the first position, the first ratchet engages with the first limiting structure; when the intermediate transmission wheel is in the second position, the second ratchet engages with the second limiting structure.

3. The rotary cleaning device according to claim 1, characterized in that: The transmission assembly includes a first transmission assembly and a damping assembly. The first transmission wheel and the second transmission wheel are respectively connected to the cleaning member through the first transmission assembly, and are used to drive the cleaning member to rotate in the same direction relative to the swing arm; the intermediate transmission wheel is connected to the swing arm through the damping assembly, and is used to drive the swing arm to rotate relative to the connecting shaft.

4. The rotary cleaning device according to claim 3, characterized in that: The first transmission wheel and the second transmission wheel are both gears, and the first transmission assembly includes: a first gear and a first gear set; The first gear set includes a plurality of transmission gears meshed in sequence along the transmission direction, the first gear meshes with the transmission gear at the power input end of the first gear set, and the transmission gear at the power output end of the first gear set is transmission-connected to the cleaning member; The first transmission wheel is meshed with the first gear, and the second transmission wheel is meshed with the transmission gear at the power input end of the first gear set.

5. The rotary cleaning device according to claim 4, characterized in that: The intermediate transmission wheel is a gear, and the damping assembly includes: a second gear and a damping member; The second gear and the damping member are coaxially arranged and are both rotatably connected to the swing arm; the intermediate transmission wheel and / or the transmission gear in the first gear set are meshed with the second gear, and the damping member is axially pressed against the second gear, thereby providing rotational resistance for the second gear.

6. The rotary cleaning device according to claim 5, characterized in that: The damping member comprises: a damping wheel, an elastic member and a fixing member; The damping wheel and the second gear are coaxially arranged and rotatably connected to the swing arm; the elastic member is pressed between the fixing member and the damping wheel, and the damping wheel is pressed between the elastic member and the second gear.

7. The rotary cleaning device according to claim 1, further comprising: The fixed arm is provided with a driving mechanism, the connecting shaft is fixed to the fixed arm, and the power output end of the driving mechanism is connected to the transmission shaft for driving the transmission shaft to rotate relative to the connecting shaft.

8. The rotary cleaning device according to claim 7, characterized in that: The driving mechanism comprises: a driving member and a second transmission assembly; The driving end of the driving member is connected to the power input end of the second transmission assembly. The power output end of the second transmission assembly is provided with a sleeve. The end of the transmission shaft is inserted into the sleeve and cooperates with the sleeve in a circumferential limiting manner.

9. A cleaning device, characterized in that: include: A machine body and a rotating cleaning device as described in any one of claims 1 to 8, wherein the rotating cleaning device is installed at the bottom of the machine body through the connecting shaft.

10. The cleaning device according to claim 9, characterized in that: A third limiting structure is provided at the bottom of the body, and the third limiting structure cooperates with the swing arm to limit the rotation angle of the swing arm relative to the connecting shaft.

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