A drive device and a laundry treating apparatus

Abstract

This application relates to the field of garment processing technology, providing a transmission device and garment processing equipment. The transmission device includes a washing assembly, a motor assembly, a first transmission mechanism, and a second transmission mechanism. The washing assembly includes a washing shaft, a spin-drying shaft, and a clutch sleeve. The spin-drying shaft is sleeved outside the washing shaft, and the clutch sleeve is slidably sleeved outside the washing shaft. The washing shaft and the spin-drying shaft can be selectively engaged or disengaged via the clutch sleeve. The motor assembly includes a drive shaft, a clutch shaft, a sliding sleeve, and a motor with a main shaft. The main shaft is sleeved outside the drive shaft, and the clutch shaft is sleeved outside the main shaft. The sliding sleeve is anti-rotationally engaged with the main shaft. The sliding sleeve has a first engagement state that engages the main shaft and the drive shaft, and a second engagement state that engages the main shaft and the clutch shaft. The first transmission mechanism drives the washing shaft and the drive shaft; the second transmission mechanism drives the spin-drying shaft and the clutch shaft. The transmission device has a smaller dimension along the washing shaft axis and a more compact structure.

Description

Technical Field

[0001] This application relates to the field of clothing processing technology, and in particular to a transmission device and clothing processing equipment. Background Technology

[0002] In related technologies, the transmission device of clothing handling equipment, such as a top-loading washing machine, includes a motor, a clutch, and a planetary gear reduction mechanism. The clutch includes a ratchet, a pawl, and a retaining spring. During the washing cycle, the pawl restricts the ratchet's rotation, and the retaining spring remains relaxed. The motor's power is transmitted to the washing shaft after being reduced in speed by the planetary gear reduction mechanism. The washing shaft drives the pulsator to obtain low-speed, high-torque power. During the spin-drying cycle, the pawl opens, the planetary gear reduction mechanism is not engaged, and the washing and spin-drying shafts rotate synchronously at higher speeds, thus achieving high-speed spin-drying. Existing solutions rely on a planetary gear reduction mechanism for speed reduction. If assembly clearances exceed tolerances or planetary gears deform during production or assembly, it can lead to excessive noise in the planetary gear train. Furthermore, the lifespan of the transmission device is shortened due to the reduction or thickening of the grease in the planetary gear train. Moreover, the overall structure of the planetary gear reduction mechanism is complex and large, occupying a significant amount of space in the top-loading washing machine. Summary of the Invention

[0003] In view of this, the embodiments of this application aim to provide a transmission device and clothing processing equipment with a relatively simple structure.

[0004] To achieve the above objectives, one aspect of this application provides a transmission device, comprising:

[0005] A washing assembly includes a washing shaft, a spin-drying shaft, and a clutch sleeve. The spin-drying shaft is sleeved outside the washing shaft, and the clutch sleeve is slidably sleeved outside the washing shaft. The washing shaft and the spin-drying shaft can be selectively engaged or disengaged through the clutch sleeve.

[0006] A motor assembly includes a drive shaft, a clutch shaft, a sliding sleeve, and a motor with a main shaft. The main shaft is sleeved outside the drive shaft, the clutch shaft is sleeved outside the main shaft, and the sliding sleeve is anti-rotationally engaged with the main shaft. The sliding sleeve has a first engagement state that engages the main shaft and the drive shaft, and a second engagement state that engages the main shaft and the clutch shaft. The sliding sleeve is slidably sleeved outside the main shaft to switch between the first engagement state and the second engagement state.

[0007] A first transmission mechanism is used to drive the washing shaft and the transmission shaft;

[0008] The second transmission mechanism is used to drive the dehydration shaft and the clutch shaft.

[0009] In some embodiments, the rotational speed of the drive shaft is reduced by the first transmission mechanism and then transmitted to the washing shaft.

[0010] In some embodiments, the first transmission mechanism includes:

[0011] The first motor pulley is connected to the first end of the drive shaft;

[0012] A washing shaft pulley is connected to the first end of the washing shaft, and the diameter of the washing shaft pulley is larger than the diameter of the first motor pulley;

[0013] The first transmission belt is wound around the first motor pulley and the washing shaft pulley.

[0014] In some embodiments, the rotational speed of the clutch shaft is increased by the second transmission mechanism and then transmitted to the dehydration shaft.

[0015] In some embodiments, the second transmission mechanism includes:

[0016] The second motor pulley is connected to the first end of the clutch shaft;

[0017] A dehydration shaft pulley is connected to the first end of the dehydration shaft, and the diameter of the second motor pulley is larger than the diameter of the dehydration shaft pulley;

[0018] The second transmission belt is wound around the second motor pulley and the dehydration shaft pulley.

[0019] In some embodiments, the clutch sleeve is anti-rotationally engaged with the spin-drying shaft, and the clutch sleeve is slidable along the axial direction of the washing shaft to engage or disengage with the washing shaft.

[0020] In some embodiments, a first key is formed on one of the inner circumferential surface of the clutch sleeve and the outer circumferential surface of the washing shaft, and a first keyway is formed on the other of the inner circumferential surface of the clutch sleeve and the outer circumferential surface of the washing shaft.

[0021] The first key and the first keyway engage to engage the clutch sleeve with the washing shaft; the first key and the first keyway disengage to disengage the clutch sleeve from the washing shaft.

[0022] In some embodiments, the transmission device includes:

[0023] The first operating mechanism is capable of abutting against the first end face of the first end of the clutch sleeve along the axial direction to drive the clutch sleeve to slide to separate from the washing shaft;

[0024] The first elastic element is capable of driving the clutch sleeve to slide into engagement with the washing shaft.

[0025] In some embodiments, the first operating mechanism includes a pawl, the first end of which has a first inclined surface facing the first end face, the first inclined surface being able to abut against the first end face to push the first end face to slide along the first inclined surface, thereby engaging or disengaging the clutch sleeve from the washing shaft.

[0026] In some embodiments, the first operating mechanism includes a first power source, a lever, and a torsion spring, the lever connecting the first power source and a second end of the pawl, the lever having a rotation axis extending axially along the washing shaft;

[0027] The first power source drives the pull rod to rotate in the first direction, causing the first inclined surface to push the first end face to slide in the positive direction, so that the clutch sleeve engages with the washing shaft and causes the torsion spring to undergo elastic deformation.

[0028] The elastic force of the torsion spring restoring its elastic deformation drives the pull rod to rotate and reset in the second direction, causing the first inclined surface to push the first end face to slide in the opposite direction, so that the clutch sleeve separates from the washing shaft. The first direction is opposite to the second direction, and the forward direction is opposite to the reverse direction.

[0029] In some embodiments, the motor assembly includes a first motor pulley connected to the drive shaft, the second transmission mechanism includes a second motor pulley connected to the clutch shaft, and the sleeve slides along the main shaft to engage with one of the first motor pulley and the second motor pulley.

[0030] In some embodiments, the transmission device includes a clutch sleeve, wherein the clutch sleeve is provided on the end face of the first motor pulley facing the sliding sleeve and the end face of the second motor pulley facing the sliding sleeve. The clutch sleeve includes a sleeve body, and the sliding sleeve has teeth formed at both ends along the axial direction of the main shaft. The teeth are embedded in the sleeve body to engage with the clutch sleeve.

[0031] In some embodiments, the clutch aligner includes a second elastic element and a self-locking element. The aligner body has a cavity, and the end face of the aligner body facing the slide sleeve has an insertion port communicating with the cavity. The second elastic element and the self-locking element are both located in the cavity. The second elastic element is connected to the self-locking element. The insertion tooth is inserted into the cavity through the insertion port, and the elastic force of the second elastic element drives the self-locking element to press against the insertion tooth.

[0032] In some embodiments, the transmission device includes a second operating mechanism that can contact the sliding sleeve to actuate it.

[0033] In some embodiments, the second operating mechanism includes:

[0034] Support;

[0035] A lever includes a deflecting end and a force-applying end. The portion of the lever located between the deflecting end and the force-applying end is rotatably connected to the support. The rotation axis of the lever is perpendicular to the axis of the main shaft. The deflecting end contacts the sliding sleeve to actuate the sliding sleeve.

[0036] A second driving source is connected to the force-applying end. The second driving source can apply a first torque to the force-applying end so that the actuating end actuates the sliding sleeve.

[0037] A third elastic element is capable of applying a second torque to reset the force-applying end, the second torque being opposite to the first torque.

[0038] Another embodiment of this application provides a garment processing device, including:

[0039] Outer drum;

[0040] The transmission device described in any of the above claims, wherein the transmission device is located on the bottom side of the outer barrel;

[0041] The inner cylinder is rotatably fitted inside the outer cylinder, and the second end of the dehydration shaft is connected to the inner cylinder;

[0042] An agitator is rotatably disposed in the inner cylinder, and the second end of the washing shaft is connected to the agitator.

[0043] The transmission device provided in this application embodiment achieves engagement and disengagement between the transmission shaft, main shaft, and clutch shaft by sliding a sleeve to form a rigid integral with the main shaft. Engagement and disengagement between the washing shaft and spin-drying shaft are achieved by sliding the clutch sleeve. Thus, the rotational speeds of the washing and spin-drying shafts can be changed by altering the motor speed, the transmission ratio of the first transmission mechanism, and / or the transmission ratio of the second transmission mechanism, using two sets of clutch mechanisms. This design eliminates the need for a planetary gear reduction mechanism, resulting in a smaller, more compact, and lower-cost transmission device along the washing shaft axis. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the transmission device in one embodiment of this application;

[0045] Figure 2 This is a schematic diagram of the pawl structure in one embodiment of this application;

[0046] Figure 3 for Figure 1 A cross-sectional view along the AA direction;

[0047] Figure 4 for Figure 3 Cross-sectional view along the BB direction;

[0048] Figure 5 This is a schematic diagram of the structure of the sliding sleeve in one embodiment of this application;

[0049] Figure 6 for Figure 5 The diagram shows the structure of the sliding sleeve from another perspective.

[0050] Explanation of reference numerals in the attached figures

[0051] Washing assembly 1; washing shaft 11; spin-drying shaft 12; clutch sleeve 13; first end face 13a;

[0052] Motor assembly 2; drive shaft 21; clutch shaft 22; sliding sleeve 23; gear 231; flange 232; motor 24; main shaft 241;

[0053] First transmission mechanism 3; first motor pulley 31; washing shaft pulley 32; first transmission belt 33;

[0054] Second transmission mechanism 4; second motor pulley 41; dehydration shaft pulley 42; second transmission belt 43;

[0055] First operating mechanism 5; pawl 51; first inclined plane 51a; pull rod 52; torsion spring 53; rotating shaft 54;

[0056] First elastic element 6;

[0057] 7. Clutching brace; 71. Brace body; 71a. Cavity; 71b. Insertion port; 72. Second elastic element; 73. Self-locking element;

[0058] Second operating mechanism 8; support 81; lever 82; actuating end 821; opening groove 821a; force-applying end 822; third elastic element 83;

[0059] Brake disc 9;

[0060] Brake band 10;

[0061] Casing 110. Detailed Implementation

[0062] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0063] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of this application, "multiple" means at least two, that is, including two or more, such as two or three, unless otherwise explicitly specified. The orientations or positional relationships in the description of the embodiments of this application are for the convenience of describing the application and simplifying the description, and are not intended to indicate or imply that the device or element 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 the present application.

[0064] Please see Figure 1 This application provides a transmission device, which includes a washing assembly 1, a motor assembly 2, a first transmission mechanism 3, and a second transmission mechanism 4.

[0065] Please continue reading. Figure 1 The washing assembly 1 includes a washing shaft 11, a spin-drying shaft 12, and a clutch sleeve 13. The spin-drying shaft 12 is sleeved outside the washing shaft 11, and the clutch sleeve 13 is slidably sleeved outside the washing shaft 11. The washing shaft 11 and the spin-drying shaft 12 can be selectively engaged or disengaged via the clutch sleeve 13. Specifically, in the engaged state, the washing shaft 11 and the spin-drying shaft 12 are joined together as a rigid unit via the clutch sleeve 13, and the washing shaft 11, the spin-drying shaft 12, and the clutch sleeve 13 rotate synchronously. In the disengaged state, the washing shaft 11 and the spin-drying shaft 12 are separate and independent; they do not rotate synchronously, for example, only the washing shaft 11 rotates independently.

[0066] The motor assembly 2 includes a drive shaft 21, a clutch shaft 22, a sliding sleeve 23, and a motor 24 with a main shaft 241. The main shaft 241 is sleeved outside the drive shaft 21, the clutch shaft 22 is sleeved outside the main shaft 241, and the sliding sleeve 23 is anti-rotationally engaged with the main shaft 241. The sliding sleeve 23 has a first engagement state that engages the main shaft 241 and the drive shaft 21, and a second engagement state that engages the main shaft 241 and the clutch shaft 22. The sliding sleeve 23 is slidably sleeved outside the main shaft 241 to switch between the first engagement state and the second engagement state.

[0067] In other words, there is no relative rotation between the sliding sleeve 23 and the main shaft 241, but they can slide relative to each other. In the first engagement state, the main shaft 241, the sliding sleeve 23, and the transmission shaft 21 are combined into a rigid whole. In the second engagement state, the main shaft 241, the sliding sleeve 23, and the clutch shaft 22 are combined into a rigid whole.

[0068] The first transmission mechanism 3 connects the washing shaft 11 and the drive shaft 21. In other words, the drive shaft 21 can transmit power to the washing shaft 11 through the first transmission mechanism 3 to drive the washing shaft 11 to rotate.

[0069] The second transmission mechanism 4 connects the dehydration shaft 12 and the clutch shaft 22. In other words, the clutch shaft 22 can transmit power to the dehydration shaft 12 through the second transmission mechanism 4 to drive the dehydration shaft 12 to rotate.

[0070] The transmission device provided in this application embodiment achieves engagement and disengagement between the transmission shaft 21, the main shaft 241, and the clutch shaft 22 by sliding the sliding sleeve 23, thereby forming a rigid integral with the main shaft 241. Engagement and disengagement between the washing shaft 11 and the spin-drying shaft 12 are achieved by sliding the clutch sleeve 13. Thus, the rotational speeds of the washing shaft 11 and the spin-drying shaft 12 can be changed by altering the rotational speed of the motor 24, the transmission ratio of the first transmission mechanism 3, and / or the transmission ratio of the second transmission mechanism 4 through two sets of clutch mechanisms. This design eliminates the need for a planetary gear reduction mechanism, resulting in a smaller, more compact, and lower-cost transmission device along the axial direction of the washing shaft 11.

[0071] This application provides a garment processing device, which includes an outer drum, a transmission device as described in any embodiment of this application, an inner drum, and a stirrer. The transmission device is located on the bottom side of the outer drum, and the inner drum is rotatably fitted inside the outer drum. The second end of the dehydration shaft 12 is connected to the inner drum. That is, the dehydration shaft 12 can drive the inner drum to rotate synchronously.

[0072] The agitator is rotatably mounted in the inner cylinder, and the second end of the washing shaft 11 is connected to the agitator. In other words, the washing shaft 11 can drive the agitator to rotate synchronously.

[0073] For example, in some embodiments, the inner drum can be used to hold clothes, and the outer drum can be used to hold water. For instance, the peripheral sidewall of the inner drum has a through hole that connects the space in the inner drum and the space in the outer drum. During the washing process, the rotation of the agitator drives the movement of clothes and water in the inner drum, thereby cleaning the clothes; during the spin-drying process, the inner drum and the agitator rotate synchronously to spin-dry the clothes using centrifugal force.

[0074] The garment processing equipment provided in this application embodiment, during washing, has the washing shaft 11 and the spin-drying shaft 12 separated by the clutch sleeve 13. The sliding sleeve 23 connects the main shaft 241 and the transmission shaft 21 into a rigid whole. Thus, the power of the main shaft 241 is transmitted to the washing shaft 11 through the transmission shaft 21 and the first transmission mechanism 3, driving the agitator to rotate, thereby agitating the clothes and water in the inner drum to achieve the purpose of washing clothes. During spin-drying, the washing shaft 11 and the spin-drying shaft 12 are engaged by the clutch sleeve 13. The sliding sleeve 23 connects the main shaft 241 and the clutch shaft 22 into a rigid whole. Thus, the power of the main shaft 241 is transmitted to the spin-drying shaft 12 through the clutch shaft 22 and the second transmission mechanism 4, driving the agitator and the inner drum to rotate synchronously, thereby using centrifugal force to remove water from the clothes to achieve the purpose of spin-drying. Because the transmission device has a smaller axial dimension along the washing shaft 11, it occupies less installation space in the garment processing equipment.

[0075] The type of clothing handling equipment is not limited; for example, clothing handling equipment includes, but is not limited to, top-loading washing machines. A top-loading washing machine refers to a washing machine whose agitator includes a pulsator. The pulsator may be located at the bottom of the inner drum to agitate the clothes and water within the drum.

[0076] As an example, in one embodiment, please refer to Figure 1 The washing assembly 1 and the motor assembly 2 are arranged radially at intervals. Taking a pulsator washing machine as an example, the washing assembly 1 and the motor assembly 2 can be arranged horizontally at intervals. In this way, the dimensions of the washing assembly 1 and the motor assembly 2 along the axial direction of the washing shaft 11 are smaller, which makes it easier to make more rational use of the limited installation space in the clothes handling equipment to arrange the washing assembly 1 and the motor assembly 2.

[0077] In one embodiment, the washing shaft 11, the spin-drying shaft 12, and the clutch sleeve 13 are all coaxially arranged. This avoids eccentric rotation.

[0078] In one embodiment, the drive shaft 21, clutch shaft 22, sliding sleeve 23, and main shaft 241 are all coaxially arranged. This avoids eccentric rotation.

[0079] In one embodiment, motor 24 is a variable speed motor. For example, the speed of motor 24 in spin-drying mode is higher than the speed of motor 24 in washing mode. Thus, in washing mode, the agitator can be driven to rotate at a slower speed to agitate the clothes and water. In spin-drying mode, the agitator and inner drum rotate at a higher speed for centrifugal dehydration.

[0080] In one embodiment, please refer to Figure 1The rotational speed of the drive shaft 21 is reduced by the first transmission mechanism 3 and then transmitted to the washing shaft 11. Exemplarily, in some embodiments, the motor 24 is a constant-speed motor, and the first transmission mechanism 3 reduces the speed and increases the torque. In some embodiments, the motor 24 can also be a variable-speed motor, and the first transmission mechanism 3 can further reduce the speed and increase the torque. During the washing process, the agitator requires a relatively low speed but a relatively high torque. In order to output a large torque to the washing shaft 11 at low speeds, the first transmission mechanism 3 ensures an appropriate transmission ratio between the main shaft 241 and the washing shaft 11, so that the agitator can have a suitable low speed and sufficient torque.

[0081] The specific structure of the first transmission mechanism 3 is not limited. For example, in some embodiments, the first transmission mechanism 3 may include a first gear set to achieve speed reduction.

[0082] In one embodiment, please refer to Figure 1 The first transmission mechanism 3 includes a first motor pulley 31, a washing shaft pulley 32, and a first transmission belt 33. The first motor pulley 31 is connected to the first end of the transmission shaft 21, and the washing shaft pulley 32 is connected to the first end of the washing shaft 11. The diameter of the washing shaft pulley 32 is larger than the diameter of the first motor pulley 31. The first transmission belt 33 is wound around the first motor pulley 31 and the washing shaft pulley 32. That is, the first motor pulley 31 is fixed to the first end of the transmission shaft 21, and the washing shaft pulley 32 is fixed to the first end of the washing shaft 11. The first motor pulley 31 drives the washing shaft pulley 32 to rotate through the first transmission belt 33. On the one hand, the use of the first motor pulley 31, the first transmission belt 33, and the washing shaft pulley 32 results in relatively low noise and low cost. On the other hand, the larger diameter of the washing shaft pulley 32 compared to the first motor pulley 31 enables speed reduction transmission, resulting in a simple structure.

[0083] The specific connection method between the first motor pulley 31 and the first end of the transmission shaft 21 is not limited. For example, in one embodiment, please refer to [reference needed]. Figure 1 The first motor pulley 31 and the first end of the transmission shaft 21 are connected by a nut.

[0084] The specific connection method between the washing shaft pulley 32 and the first end of the washing shaft 11 is not limited. For example, in one embodiment, please refer to... Figure 1 The washing shaft pulley 32 is connected to the first end of the washing shaft 11 by a nut.

[0085] In one embodiment, please refer to Figure 1The rotational speed of the clutch shaft 22 is increased by the second transmission mechanism 4 and then transmitted to the dehydration shaft 12. Exemplarily, in some embodiments, the motor 24 is a constant-speed motor, with the second transmission mechanism 4 increasing the speed. In some embodiments, the motor 24 can also be a variable-speed motor, and the second transmission mechanism 4 can further increase the transmission speed. This allows the dehydration shaft 12 to rotate at high speed to achieve centrifugal dehydration. During the dehydration process, the inner cylinder and agitator require relatively high rotational speeds. The second transmission mechanism 4 ensures an appropriate transmission ratio between the clutch shaft 22 and the dehydration shaft 12, enabling the inner cylinder and agitator to achieve suitable high rotational speeds.

[0086] The specific structure of the second transmission mechanism 4 is not limited. For example, in some embodiments, the second transmission mechanism 4 may include a second gear set to achieve speed increase.

[0087] In one embodiment, please refer to Figure 1 The second transmission mechanism 4 includes a second motor pulley 41, a dehydration shaft pulley 42, and a second transmission belt 43. The second motor pulley 41 is connected to the first end of the clutch shaft 22, and the dehydration shaft pulley 42 is connected to the first end of the dehydration shaft 12. The diameter of the second motor pulley 41 is larger than the diameter of the dehydration shaft pulley 42. The second transmission belt 43 is wound around the second motor pulley 41 and the dehydration shaft pulley 42. That is, the second motor pulley 41 drives the dehydration shaft pulley 42 to rotate through the second transmission belt 43. On the one hand, the use of the second motor pulley 41, the second transmission belt 43, and the dehydration shaft pulley 42 results in relatively low noise and low cost. On the other hand, the larger diameter of the second motor pulley 41 compared to the dehydration shaft pulley 42 achieves speed-increasing transmission, resulting in a simple structure.

[0088] In some embodiments, please refer to Figure 1 The diameter of the second motor pulley 41 is larger than the diameter of the first motor pulley 31.

[0089] In some embodiments, please refer to Figure 1 The diameter of the washing shaft pulley 32 is larger than the diameter of the dehydration shaft pulley 42.

[0090] The specific connection method between the second motor pulley 41 and the first end of the clutch shaft 22 is not limited. For example, in one embodiment, please refer to... Figure 1 The first end of the clutch shaft 22 has a first flange, and the second motor pulley 41 is connected to the first flange by bolts, such as hex bolts.

[0091] The specific connection method between the dehydration shaft pulley 42 and the first end of the dehydration shaft 12 is not limited. For example, in one embodiment, a second flange is formed at the first end of the dehydration shaft 12, and the dehydration shaft pulley 42 and the second flange are connected by bolts, such as hexagon socket head cap bolts.

[0092] In one embodiment, the clutch sleeve 13 is anti-rotationally engaged with the spin-drying shaft 12, and the clutch sleeve 13 can slide along the axial direction of the washing shaft 11 to engage or disengage from the washing shaft 11. That is, the clutch sleeve 13 and the spin-drying shaft 12 cannot rotate relative to each other, but can slide relative to each other. Engaging the clutch sleeve 13 with the washing shaft 11 puts the spin-drying shaft 12 and the washing shaft 11 in an engaged state. Disengaging the clutch sleeve 13 from the washing shaft 11 puts the spin-drying shaft 12 and the washing shaft 11 in a disengaged state.

[0093] In one embodiment, a first key is formed on one of the inner circumferential surface of the clutch sleeve 13 and the outer circumferential surface of the washing shaft 11, and a first keyway is formed on the other. Exemplarily, in some embodiments, the first key is formed on the inner circumferential surface of the clutch sleeve 13, and the first keyway is formed on the outer circumferential surface of the washing shaft 11. In still other embodiments, the first key is formed on the outer circumferential surface of the washing shaft 11, and the first keyway is formed on the inner circumferential surface of the clutch sleeve 13.

[0094] The first key engages with the first keyway, thereby connecting the clutch sleeve 13 to the washing shaft 11. In other words, the first key is inserted into the first keyway, and the circumferential wall surface of the first keyway abuts against the circumferential surface of the first key. The circumferential wall surface of the first keyway restricts the circumferential rotation of the first key, thus preventing rotation.

[0095] The first key separates from the first keyway, thereby separating the clutch sleeve 13 from the washing shaft 11. In other words, the first key disengages from the first keyway. The clutch sleeve 13 and the washing shaft 11 are now separate and can move independently.

[0096] The types of the first key and the first key slot are not limited. For example, if the first key can be a spline, then the first key slot can be a spline slot.

[0097] In one embodiment, a second key is formed on one of the inner circumferential surface of the clutch sleeve 13 and the outer circumferential surface of the dehydration shaft 12, and a second keyway is formed on the other. Exemplarily, in some embodiments, the second key is formed on the inner circumferential surface of the clutch sleeve 13, and the second keyway is formed on the outer circumferential surface of the dehydration shaft 12. In still other embodiments, the second key is formed on the outer circumferential surface of the dehydration shaft 12, and the second keyway is formed on the inner circumferential surface of the clutch sleeve 13.

[0098] During the sliding process of the clutch sleeve 13, the second key and the second keyway remain engaged. That is, within the sliding stroke of the clutch sleeve 13, the second key is always inserted in the second keyway, the groove wall surface of the second keyway abuts against the circumferential surface of the second key, and the groove wall surface of the second keyway restricts the circumferential rotation of the second key, thus playing a role in preventing rotation.

[0099] The type of the second key and the second key slot is not limited. For example, if the second key can be a spline, then the second key slot can be a spline slot.

[0100] In one embodiment, please refer to Figure 1 The transmission device includes a first operating mechanism 5 and a first elastic element 6. The first operating mechanism 5 is capable of abutting against a first end face 13a of a first end along the axial direction of the clutch sleeve 13 to drive the clutch sleeve 13 to slide to disengage from the washing shaft 11. The first elastic element 6 is capable of driving the clutch sleeve 13 to slide to engage with the washing shaft 11.

[0101] Here, the first operating mechanism 5 and the first elastic element 6 provide opposing forces. The first operating mechanism 5 drives the clutch sleeve 13 to slide out of the washing shaft 11, causing the first elastic element 6 to undergo elastic deformation. Thus, during the washing process, neither the clutch sleeve 13 nor the spin-drying shaft 12 rotates with the washing shaft 11. During the spin-drying process, the first operating mechanism 5 can release its force, and the elastic force generated by the first elastic element 6 restoring its elastic deformation can drive the clutch sleeve 13 to slide out and engage with the washing shaft 11. In this way, the first elastic element 6, the clutch sleeve 13, the washing shaft 11, and the spin-drying shaft 12 can rotate synchronously.

[0102] The type of the first elastic element 6 is not limited. For example, the first elastic element 6 can be a compression spring. The clutch sleeve 13 is formed with a stepped surface. The compression spring is sleeved outside the clutch sleeve 13 and located on the side of the stepped surface away from the washing shaft pulley 32.

[0103] In one embodiment, please refer to Figure 1 and Figure 2 The first operating mechanism 5 includes a pawl 51. The first end of the pawl 51 has a first inclined surface 51a facing the first end face 13a. The first inclined surface 51a can abut against the first end face 13a to push the first end face 13a to slide along the first inclined surface 51a, so that the clutch sleeve 13 engages or disengages from the washing shaft 11. In this way, by using the first inclined surface 51a to push the first end face 13a to slide, the structure of the pawl 51 is simple, and the contact area between the first inclined surface 51a and the first end face 13a can be small, thereby reducing wear between the two.

[0104] As an example, in one embodiment, please refer to Figure 2 The first inclined plane 51a slopes downwards. Specifically, the angle between the plane containing the first inclined plane 51a and the axis of rotation is an obtuse angle.

[0105] In one embodiment, please refer to Figure 1 and Figure 2The first operating mechanism 5 includes a first power source, a pull rod 52, and a torsion spring 53. The pull rod 52 connects the first power source and the second end of the pawl 51, and the pull rod 52 has a rotation axis extending axially along the washing shaft 11. Exemplarily, both the rotation axis of the pull rod 52 and the rotation axis of the washing shaft 11 are in the vertical direction. The rotation axis of the pull rod 52 and the rotation axis of the pawl 51 are parallel or coincident, causing the pull rod 52 and the pawl 51 to rotate synchronously.

[0106] The first power source drives the pull rod 52 to rotate in a first direction, causing the first inclined surface 51a to push the first end face 13a to slide forward, so that the clutch sleeve 13 engages with the washing shaft 11, and the torsion spring 53 undergoes elastic deformation. That is, during the spin-drying process, the first power source applies force to switch the clutch sleeve 13 and the washing shaft 11 to the engaged state. For example, the forward direction can be downward, that is, the first inclined surface 51a pushes the first end face 13a to slide downward, and the clutch sleeve 13 engages with the washing shaft 11.

[0107] The elastic force of the torsion spring 53, restoring its elastic deformation, drives the pull rod 52 to rotate and reset in the second direction. This causes the first inclined surface 51a to push the first end face 13a to slide in the opposite direction, thus separating the clutch sleeve 13 from the washing shaft 11. The first direction is opposite to the second direction, and the forward direction is opposite to the reverse direction. For example, the reverse direction can be upward, meaning the first inclined surface 51a pushes the first end face 13a upward, separating the clutch sleeve 13 from the washing shaft 11. During the washing process, when the first power source cancels its force, the elastic force of the torsion spring 53, restoring its elastic deformation, causes the clutch sleeve 13 to switch to the separated state from the washing shaft 11.

[0108] If one of the first direction and the second direction is clockwise, then the other of the first direction and the second direction is counterclockwise.

[0109] The specific type of the first power source is not limited. For example, in one embodiment, the first power source is a motor.

[0110] The specific connection method between the pull rod 52 and the pawl 51 is not limited. For example, the pull rod 52 and the pawl 51 can be fixedly connected by a pin. For example, the pin is inserted horizontally through the second end of the pull rod 52 and the pawl 51.

[0111] In one embodiment, please refer to Figure 1The transmission device includes a brake disc 9 and a brake band 10. The brake disc 9 is connected to the spin-drying shaft 12, and the brake band 10 surrounds the outer circumferential surface of the brake disc 9. The brake band 10 can be in contact with the outer circumferential surface of the brake disc 9 for braking, or the brake band 10 can be separated from the outer circumferential surface of the brake disc 9. When the brake band 10 is in contact with the outer circumferential surface of the brake disc 9 for braking, the inner drum is in a braking state, i.e., remains stationary. For example, during the washing process, the brake band 10 can be in contact with the outer circumferential surface of the brake disc 9 for braking, which can prevent the inner drum from rotating under the action of water flow, etc. During the spin-drying process, the brake band 10 is separated from the outer circumferential surface of the brake disc 9 so that the agitator and the inner drum can rotate synchronously for spin-drying.

[0112] The specific method of connecting the brake disc 9 to the dehydration shaft 12 is not limited. Exemplarily, in some embodiments, the brake disc 9 and the dehydration shaft 12 are riveted. This ensures balanced force distribution at the riveting point, good stability, and prevents eccentricity. Alternatively, the brake disc 9 and the dehydration shaft 12 can be bolted together, facilitating assembly and disassembly.

[0113] In some embodiments, the cross-sectional shape of the brake disc 9 may be I-shaped. The brake disc 9 has good structural strength.

[0114] In some embodiments, the outer peripheral surface of the brake disc 9 is recessed inward to form a V-shape. The end face of the brake band 10 facing the brake disc 9 can conform to the outer peripheral surface of the V-shape for braking. This design increases the contact area between the end face of the brake band 10 facing the brake disc 9 and the outer peripheral surface of the V-shape, resulting in greater friction than in planar contact, increased braking torque, and reduced braking time.

[0115] In one embodiment, please refer to Figure 1 The transmission device includes a housing 110, with a brake disc 9 located within the housing 110. The washing shaft 11 and the spin-drying shaft 12 both penetrate the housing 110. The housing 110 has a clearance opening, through which the brake band 10 extends into the housing 110 to contact the brake disc 9. By eliminating the planetary gear reduction mechanism, the housing 110 can be smaller, lighter, simpler to manufacture, and lower in cost.

[0116] In one embodiment, please refer to Figure 1 The first operating mechanism 5 includes a rotating shaft 54 ​​rotatably connected to the housing 110. The rotating shaft 54 ​​is arranged along the axial direction of the washing shaft 11 and passes through the pull rod 52 and the pawl 51. For example, the rotating shaft 54 ​​is arranged in the vertical direction. In this way, both the pull rod 52 and the pawl 51 rotate about the rotation axis of the rotating shaft 54.

[0117] In one embodiment, please refer to Figure 1The motor assembly 2 includes a first motor pulley 31 connected to a drive shaft 21, and the second transmission mechanism 4 includes a second motor pulley 41 connected to a clutch shaft 22. A sliding sleeve 23 slides along the main shaft 241 to engage with one of the first motor pulley 31 or the second motor pulley 41. Exemplarily, in some embodiments, the diameter of the second motor pulley 41 is larger than that of the first motor pulley 31. The sliding sleeve 23 engages with the first motor pulley 31 to connect the main shaft 241 and the drive shaft 21. The sliding sleeve 23 engages with the second motor pulley 41 to connect the main shaft 241 and the clutch shaft 22. Thus, clutch engagement is achieved through the cooperation between the sliding sleeve 23, the first motor pulley 31, and the second motor pulley 41, resulting in a simple structure.

[0118] In one embodiment, a third key is formed on one of the inner circumferential surface of the sliding sleeve 23 and the outer circumferential surface of the spindle 241, and a third keyway is formed on the other of the inner circumferential surface of the sliding sleeve 23 and the outer circumferential surface of the spindle 241. Exemplarily, in some embodiments, a third key is formed on the inner circumferential surface of the sliding sleeve 23, and a third keyway is formed on the outer circumferential surface of the spindle 241. In still other embodiments, a third key is formed on the outer circumferential surface of the spindle 241, and a third keyway is formed on the inner circumferential surface of the sliding sleeve 23.

[0119] During the sliding process of the sliding sleeve 23, the third key and the third keyway remain engaged. That is, within the sliding stroke of the sliding sleeve 23, the third key is always inserted in the third keyway, the circumferential groove wall surface of the third key abuts against the circumferential surface of the third key, and the circumferential groove wall surface of the third keyway restricts the circumferential rotation of the third key, thus playing a role in preventing rotation.

[0120] The types of the third key and the third key slot are not limited. For example, if the third key can be a spline, then the third key slot can be a spline slot.

[0121] In one embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The transmission device includes a clutch sleeve 7. The end face of the first motor pulley 31 facing the sliding sleeve 23 and the end face of the second motor pulley 41 facing the sliding sleeve 23 are both provided with clutch sleeves 7. The clutch sleeve 7 includes a sleeve body 71. The sliding sleeve 23 has teeth 231 formed at both ends along the axial direction of the main shaft 241. The teeth 231 are embedded in the sleeve body 71 to engage with the clutch sleeve 7.

[0122] For example, during the washing process, the teeth 231 facing the first motor pulley 31 are engaged in the clutch sleeve 7 located on the first motor pulley 31, and the teeth 231 facing the second motor pulley 41 are separated from the clutch sleeve 7 located on the second motor pulley 41. In this way, the sliding sleeve 23 rigidly connects the main shaft 241 and the drive shaft 21. During the spin-drying process, the teeth 231 facing the first motor pulley 31 are separated from the clutch sleeve 7 located on the first motor pulley 31, and the teeth 231 facing the second motor pulley 41 are engaged in the clutch sleeve 7 located on the second motor pulley 41. In this way, the sliding sleeve 23 rigidly connects the main shaft 241 and the clutch shaft 22.

[0123] Here, by embedding the insert 231 into the main body 71 of the dental brace, one of the first motor pulley 31 and the second motor pulley 41 is combined with the sliding sleeve 23, and the sliding sleeve 23 and the first motor pulley 31, and the sliding sleeve 23 and the second motor pulley 41 are not easily separated.

[0124] In one embodiment, the brace body 71 can be fixed to the first motor pulley 31 or the second motor pulley 41 by bolts or screws.

[0125] In one embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The clutch aligner 7 includes a second elastic element 72 and a self-locking element 73. The aligner body 71 has a cavity 71a, and the end face of the aligner body 71 facing the sliding sleeve 23 has an insertion port 71b communicating with the cavity 71a. The second elastic element 72 and the self-locking element 73 are both located in the cavity 71a. The second elastic element 72 is connected to the self-locking element 73. The insertion tooth 231 is inserted into the cavity 71a through the insertion port 71b. The elastic force of the second elastic element 72 drives the self-locking element 73 to press against the insertion tooth 231. In this way, the elastic force of the second elastic element 72 strengthens the pressing force between the self-locking element 73 and the insertion tooth 231, thereby preventing the insertion tooth 231 from shaking in the cavity 71a and further preventing the sliding sleeve 23 from disengaging from the clutch aligner 7.

[0126] As an example, in one embodiment, please refer to Figure 1 , Figure 3 and Figure 4 Each insert 231 is equipped with two second elastic elements 72 and two self-locking elements 73. The two relatively close ends of the two second elastic elements 72 are connected to the two self-locking elements 73, while the other ends of the two second elastic elements 72, which are far apart from each other, are connected to the dental brace body 71. The insert 231 is inserted between the corresponding two self-locking elements 73, and the two self-locking elements 73 clamp the insert 231. The elastic force of the corresponding two second elastic elements 72 causes the two self-locking elements 73 to press firmly against the insert 231. In this way, the force on a single second elastic element 72 is smaller and more even, extending the service life of the second elastic element 72.

[0127] In one specific embodiment, please refer to Figure 3 and Figure 4 The sliding sleeve 23 has multiple teeth 231 formed at both ends along the axial direction of the main shaft 241. Each tooth 231 is configured with two second elastic elements 72 and two self-locking elements 73. For example, if the sliding sleeve 23 has two teeth 231 formed at both ends along the axial direction of the main shaft 241, then each clutch sleeve 7 has four second elastic elements 72 and four self-locking elements 73. On the one hand, multiple teeth 231 facilitate the strengthening of the connection reliability between the sliding sleeve 23 and the clutch sleeve 7. On the other hand, multiple teeth 231 distribute the force, avoiding excessive force on a single tooth 231, thereby preventing damage to the tooth 231.

[0128] In one embodiment, please refer to Figure 3 and Figure 4 The self-locking component 73 is a spherical structure. In this way, the self-locking component 73 has a simple structure, which makes it easy for the outer surface of the spherical structure to abut against the insert 231, and also makes it easy for the insert 231 to disengage from the spherical structure under the action of a moderate force.

[0129] In one embodiment, please refer to Figure 1 , Figure 5 and Figure 6 The transmission device includes a second operating mechanism 8, which can contact the sliding sleeve 23 to move the sliding sleeve 23. Thus, the operation is simple by moving the sliding sleeve 23 through the second operating mechanism 8.

[0130] In one embodiment, please refer to Figure 1 , Figure 5 and Figure 6 The second operating mechanism 8 includes a support 81, a lever 82, a second drive source, and a third elastic element 83.

[0131] The lever 82 includes an actuating end 821 and a force-applying end 822. The portion of the lever 82 located between the actuating end 821 and the force-applying end 822 is rotatably connected to the support 81. The rotation axis of the lever 82 is perpendicular to the axis of the main shaft 241. The actuating end 821 contacts the sliding sleeve 23 to actuate the sliding sleeve 23. The actuating end 821 and the force-applying end 822 constitute a lever structure with the rotation point of the lever 82 as the fulcrum. For example, if the rotation axis of the lever 82 is horizontal, and the force-applying end 822 moves downward, the actuating end 821 moves upward. If the force-applying end 822 moves upward, the actuating end 821 moves downward.

[0132] The second drive source is connected to the force-applying end 822, and can apply a first torque to the force-applying end 822 to cause the actuating end 821 to actuate the sliding sleeve 23. The third elastic element 83 can apply a second torque to reset the force-applying end 822, and the second torque is opposite to the first torque. On the one hand, it is convenient to assemble the second drive source and other structures in areas with ample installation space, avoiding interference between various structural components. On the other hand, the structure of the second operating mechanism 8 is simple, and the reset force is provided by the elastic force of the third elastic element 83, resulting in lower cost.

[0133] As an example, in one embodiment, please refer to Figure 1 , Figure 5 and Figure 6 During washing, the second drive source applies a first torque to the force-applying end 822 around the rotation point of the lever 82. The actuating end 821 actuates the teeth 231 of the sliding sleeve 23 into the clutch sleeve 7 of the first motor pulley 31, causing the third elastic element 83 to undergo elastic deformation. During spin-drying, the second drive source stops applying force, and the elastic force restored by the third elastic element 83 drives the force-applying end 822 to reset. The actuating end 821 actuates the teeth 231 of the sliding sleeve 23 into the clutch sleeve 7 of the second motor pulley 41.

[0134] The specific type of the second drive source is not limited. For example, the second drive source includes, but is not limited to, a traction device, etc.

[0135] In one embodiment, please refer to Figure 1 , Figure 5 and Figure 6 The actuating end 821 has an opening groove 821a that opens toward the sliding sleeve 23. A flange 232 is formed on the outer peripheral surface of the sliding sleeve 23, extending into the opening groove 821a through the opening. This allows for quick assembly of the actuating end 821 onto the sliding sleeve 23 while also limiting the sliding sleeve 23 from disengaging from the opening groove 821a to a certain extent. The opening groove 821a abuts against the surface of the flange 232 to actuate the sliding sleeve 23.

[0136] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions.

[0137] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A transmission device, characterized in that, include: A washing assembly includes a washing shaft, a spin-drying shaft, and a clutch sleeve. The spin-drying shaft is sleeved outside the washing shaft, and the clutch sleeve is slidably sleeved outside the washing shaft. The washing shaft and the spin-drying shaft can be selectively engaged or disengaged through the clutch sleeve. A motor assembly includes a drive shaft, a clutch shaft, a sliding sleeve, and a motor with a main shaft. The main shaft is sleeved outside the drive shaft, the clutch shaft is sleeved outside the main shaft, and the sliding sleeve is anti-rotationally engaged with the main shaft. The sliding sleeve has a first engagement state that engages the main shaft and the drive shaft, and a second engagement state that engages the main shaft and the clutch shaft. The sliding sleeve is slidably sleeved outside the main shaft to switch between the first engagement state and the second engagement state. A first transmission mechanism is used to drive the washing shaft and the transmission shaft; The rotational speed of the drive shaft is reduced by the first transmission mechanism and then transmitted to the washing shaft; The second transmission mechanism is used to drive the dehydration shaft and the clutch shaft; The rotational speed of the clutch shaft is increased by the second transmission mechanism and then transmitted to the dehydration shaft.

2. The transmission device according to claim 1, characterized in that, The first transmission mechanism includes: The first motor pulley is connected to the first end of the drive shaft; A washing shaft pulley is connected to the first end of the washing shaft, and the diameter of the washing shaft pulley is larger than the diameter of the first motor pulley; The first transmission belt is wound around the first motor pulley and the washing shaft pulley.

3. The transmission device according to claim 1, characterized in that, The second transmission mechanism includes: The second motor pulley is connected to the first end of the clutch shaft; A dehydration shaft pulley is connected to the first end of the dehydration shaft, and the diameter of the second motor pulley is larger than the diameter of the dehydration shaft pulley; The second transmission belt is wound around the second motor pulley and the dehydration shaft pulley.

4. The transmission device according to claim 1, characterized in that, The clutch sleeve is anti-rotationally engaged with the dehydration shaft, and the clutch sleeve can slide along the axial direction of the washing shaft to engage or disengage with the washing shaft.

5. The transmission device according to claim 4, characterized in that, A first key is formed on one of the inner circumferential surface of the clutch sleeve and the outer circumferential surface of the washing shaft, and a first keyway is formed on the other of the inner circumferential surface of the clutch sleeve and the outer circumferential surface of the washing shaft. The first key and the first keyway engage to engage the clutch sleeve with the washing shaft; the first key and the first keyway disengage to disengage the clutch sleeve from the washing shaft.

6. The transmission device according to claim 4, characterized in that, The transmission device includes: The first operating mechanism is capable of abutting against the first end face of the first end of the clutch sleeve along the axial direction to drive the clutch sleeve to slide to separate from the washing shaft; The first elastic element is capable of driving the clutch sleeve to slide into engagement with the washing shaft.

7. The transmission device according to claim 6, characterized in that, The first operating mechanism includes a pawl, the first end of which has a first inclined surface facing the first end face. The first inclined surface can abut against the first end face to push the first end face to slide along the first inclined surface, so that the clutch sleeve engages or disengages from the washing shaft.

8. The transmission device according to claim 7, characterized in that, The first operating mechanism includes a first power source, a pull rod, and a torsion spring. The pull rod connects the first power source and the second end of the pawl, and the pull rod has a rotation axis extending axially along the washing shaft. The first power source drives the pull rod to rotate in the first direction, causing the first inclined surface to push the first end face to slide in the positive direction, so that the clutch sleeve engages with the washing shaft and causes the torsion spring to undergo elastic deformation. The elastic force of the torsion spring restoring its elastic deformation drives the pull rod to rotate and reset in the second direction, causing the first inclined surface to push the first end face to slide in the opposite direction, so that the clutch sleeve separates from the washing shaft. The first direction is opposite to the second direction, and the forward direction is opposite to the reverse direction.

9. The transmission device according to claim 1, characterized in that, The motor assembly includes a first motor pulley connected to the drive shaft, the second transmission mechanism includes a second motor pulley connected to the clutch shaft, and the sliding sleeve slides along the main shaft to engage with one of the first motor pulley and the second motor pulley.

10. The transmission device according to claim 9, characterized in that, The transmission device includes a clutch sleeve. The clutch sleeve is provided on the end face of the first motor pulley facing the sliding sleeve and the end face of the second motor pulley facing the sliding sleeve. The clutch sleeve includes a sleeve body. The sliding sleeve has teeth formed at both ends along the axial direction of the main shaft. The teeth are embedded in the sleeve body to engage with the clutch sleeve.

11. The transmission device according to claim 10, characterized in that, The clutch includes a second elastic element and a self-locking element. The main body of the clutch has a cavity, and the end face of the main body facing the sliding sleeve has an insertion port communicating with the cavity. The second elastic element and the self-locking element are both located in the cavity. The second elastic element is connected to the self-locking element. The insertion tooth is inserted into the cavity through the insertion port. The elastic force of the second elastic element drives the self-locking element to press against the insertion tooth.

12. The transmission device according to any one of claims 1 to 11, characterized in that, The transmission device includes a second operating mechanism, which is capable of contacting the sliding sleeve to move the sliding sleeve.

13. The transmission device according to claim 12, characterized in that, The second operating mechanism includes: Support; A lever includes a deflecting end and a force-applying end. The portion of the lever located between the deflecting end and the force-applying end is rotatably connected to the support. The rotation axis of the lever is perpendicular to the axis of the main shaft. The deflecting end contacts the sliding sleeve to actuate the sliding sleeve. A second driving source is connected to the force-applying end. The second driving source can apply a first torque to the force-applying end so that the actuating end actuates the sliding sleeve. A third elastic element is capable of applying a second torque to reset the force-applying end, the second torque being opposite to the first torque.

14. A garment processing device, characterized in that, include: Outer drum; The transmission device according to any one of claims 1 to 13, wherein the transmission device is located on the bottom side of the outer barrel; The inner cylinder is rotatably fitted inside the outer cylinder, and the second end of the dehydration shaft is connected to the inner cylinder; An agitator is rotatably disposed in the inner cylinder, and the second end of the washing shaft is connected to the agitator.

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