CN216786623U

CN216786623U - Clothes treatment equipment

Info

Publication number: CN216786623U
Application number: CN202122767780.0U
Authority: CN
Inventors: 米德龙; 郑晓秋; 邴进东
Original assignee: Haier Smart Home Co Ltd; Chongqing Haier Front Loading Washing Machine Co Ltd
Current assignee: Haier Smart Home Co Ltd; Chongqing Haier Front Loading Washing Machine Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-06-21
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to the technical field of household appliances, in particular to a clothes treatment device. The clothes processing equipment comprises a clothes drying roller, a clothes drying fan, a transmission component and a rotating motor, wherein the transmission component comprises a first bevel gear, a second bevel gear and a clutch, the clothes drying fan is provided with a third bevel gear, the first bevel gear is externally engaged with the second bevel gear, the second bevel gear is externally engaged with the third bevel gear, the first bevel gear and the third bevel gear are arranged oppositely, the first bevel gear and the clothes drying fan are both provided with a clutch, one end of an output shaft of the rotating motor drives the clothes drying roller to rotate, the rotating motor drives the clothes drying roller to rotate positively and negatively to prevent the clothes from winding, the other end of the output shaft of the rotating motor can be adjusted by the clutch to be in transmission connection with the input shaft of one of the first bevel gear and the clothes drying fan, when the rotating motor rotates forwards or backwards, the clothes drying fan keeps rotating forwards, the air quantity of the clothes drying fan is ensured, and the clothes drying effect is improved.

Description

Clothes treatment equipment

Technical Field

The utility model relates to the technical field of household appliances, in particular to a clothes treatment device.

Background

In the process of drying clothes, the clothes processing equipment usually needs a rotating motor to drive a clothes drying fan to rotate, so that air inside the clothes processing equipment flows up to form air in an air duct, the air enters a clothes drying roller after being heated to exchange heat with damp clothes in the roller, and moisture on the clothes is taken away until the clothes in the roller are dried. If the clothes drying roller rotates unidirectionally all the time in the drying process, the clothes are easy to be wound to influence the clothes drying effect, so that the knotted clothes are not dried and cannot be dried thoroughly. In order to solve the problem of clothes winding, a rotary motor is generally required to drive the clothes drying drum to rotate forward and backward. In order to reduce the cost, the clothes drying fan and the clothes drying roller are usually driven by a rotating motor, but when the clothes drying fan rotates reversely along with the rotating motor, the reverse air volume of the clothes drying fan is far lower than that of the clothes drying fan rotating normally, and the clothes drying effect is reduced.

Although the prior art shows that the rotating motor can drive the clothes drying fan to always keep rotating positively when the rotating motor drives the clothes drying roller to rotate positively and negatively, the arrangement mode needs to arrange a reversing device or an electromagnetic adjusting piece between the rotating motor and the clothes drying fan, needs an additional electrical control system, and has complex structure and inconvenient operation.

Therefore, it is highly desirable to invent a laundry treating apparatus to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clothes treatment device, which is simple in structure and convenient to operate, and the rotating motor drives a clothes drying fan to keep rotating forwards when the rotating motor drives a clothes drying roller to rotate forwards or reversely.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a laundry treating apparatus including a drying drum and a drying fan, the laundry treating apparatus further comprising:

the clothes drying fan comprises a driving assembly, a first bevel gear, a second bevel gear and a clutch, wherein a third bevel gear is arranged on the clothes drying fan, the first bevel gear is externally meshed with the second bevel gear, the second bevel gear is externally meshed with the third bevel gear, the first bevel gear and the third bevel gear are oppositely arranged, and the clutch is arranged on the first bevel gear and the clothes drying fan; and

the clothes drying device comprises a rotating motor, one end of an output shaft of the rotating motor drives the clothes drying roller to rotate, and the clutch can adjust the other end of the output shaft of the rotating motor to be in transmission connection with an input shaft of one of the first bevel gear and the clothes drying fan, so that the clothes drying fan keeps rotating forwards when the rotating motor rotates forwards or reversely.

Preferably, the clutch is a one-way clutch.

Preferably, when the rotating motor rotates in the forward direction, the one-way clutch on the clothes drying fan is in a locked state, the one-way clutch on the first bevel gear is in a free state, and an output shaft of the rotating motor is in transmission connection with an input shaft of the clothes drying fan;

when the rotating motor rotates reversely, the one-way clutch on the first bevel gear is in a locking state, the one-way clutch on the clothes drying fan is in a free state, and an output shaft of the rotating motor is in transmission connection with an input shaft of the first bevel gear.

Preferably, the one-way clutch includes:

the first bevel gear and the input shaft of the clothes drying fan are fixedly connected with the outer ring;

the inner ring penetrates through the inner part of the outer ring and is fixedly connected with an output shaft of the rotating motor; and

a roller assembly disposed between the outer race and the inner race;

when the one-way clutch is in the locking state, the inner ring drives the outer ring to synchronously rotate through the roller component; when the one-way clutch is in the free state, the outer ring is static relative to the inner ring.

Preferably, the roller assembly comprises:

the inner wall of the outer ring is provided with a plurality of elastic pieces which are arranged at intervals along the circumferential direction of the outer ring; and

the free end of each elastic piece is connected with the roller, and the rollers can abut against or separate from the inner ring.

Preferably, the inner wall of the outer ring is provided with a plurality of accommodating grooves at intervals along the circumferential direction thereof, and the rollers can be accommodated in the accommodating grooves when the rollers are disengaged from the inner ring.

Preferably, the rotating motor is a double-head motor, and the double-head motor is provided with an output shaft capable of rotating in two directions.

Preferably, the clothes drying fan is a centrifugal fan.

Preferably, one end of the output shaft of the rotating motor drives the drying drum to rotate through a belt pulley.

Preferably, the first bevel gear and/or the clothes drying fan are detachably connected with the clutch.

The utility model has the beneficial effects that:

the utility model provides a clothes treatment device, wherein one end of an output shaft of a rotating motor drives a clothes drying roller to rotate, so that the rotating motor can drive the clothes drying roller to synchronously rotate forwards and backwards, and clothes are prevented from being wound.

In addition, this clothing treatment facility is through setting up transmission assembly, transmission assembly includes first bevel gear, second bevel gear and clutch, be provided with third bevel gear on the dry clothing fan, first bevel gear and second bevel gear external toothing, second bevel gear and third bevel gear external toothing, and first bevel gear sets up with third bevel gear relatively, all install the clutch on first bevel gear and the dry clothing fan, the clutch can adjust the other end of rotating electrical machines output shaft and the input shaft transmission of first bevel gear and dry clothing fan one of them and be connected, so that when the rotating electrical machines carries out corotation or reversal, the dry clothing fan all keeps corotation, guarantee the amount of wind of dry clothing fan, improve dry clothing effect. And the structure is simple, and the operation is convenient.

Drawings

Fig. 1 is a schematic structural view of a laundry treating apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a clothes drying fan provided in an embodiment of the present invention;

FIG. 3 is a first schematic structural diagram of a clutch according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a clutch according to an embodiment of the present invention.

1. A drying drum; 2. a clothes drying fan; 21. a third bevel gear; 3. a rotating electric machine;

4. a transmission assembly; 41. a first bevel gear; 42. a second bevel gear; 43. a clutch; 431. an outer ring; 4311. accommodating grooves; 432. an inner ring; 433. a roller assembly; 4331. an elastic member; 4332. and a roller.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the present embodiment provides a clothes processing apparatus, which mainly refers to a clothes processing apparatus with a clothes drying function, such as a heat pump clothes dryer, and includes a clothes drying drum 1, a heat pump system and a circulating air system, wherein the clothes drying drum 1 is used for holding clothes, the clothes drying drum 1 is provided with an air inlet and an air outlet which are communicated with each other, the circulating air system includes an air duct and a clothes drying fan 2 disposed in the air duct, an inlet of the air duct is communicated with the air outlet of the clothes drying drum 1, an outlet of the air duct is communicated with the air inlet of the clothes drying drum 1, a part of the heat pump system is disposed in the air duct, the heat pump system can process low-temperature humid gas exhausted from the air outlet of the clothes drying drum 1 into high-temperature dry gas under the driving of the clothes drying fan 2 and introduce the high-temperature dry gas into the air inlet of the clothes drying drum 1, so that the high-temperature dry gas is fully mixed with the clothes in the clothes drying drum 1, by means of the continuous air circulation, the drying of the clothes in the drying drum 1 is realized.

Preferably, as shown in fig. 2, the clothes drying fan 2 is a centrifugal fan. The centrifugal fan is a machine which can improve the air pressure and discharge air, and can generate better air pressure and air volume. In addition, the centrifugal fan has low noise and high reliability during operation.

Specifically, the heat pump system comprises an evaporator and a condenser which are adjacently arranged, wherein the evaporator and the condenser are both arranged in an air duct, the evaporator can exchange heat with circulating hot humid air inside the evaporator, heat is absorbed from the hot humid air, the hot humid air is cooled, water vapor in the hot humid air is condensed into water, a refrigerant is introduced into the condenser, the refrigerant can release heat in the condenser, and the released heat can heat the circulating gas in the condenser. Therefore, the evaporator can dry the humid air exhausted from the air outlet of the clothes drying roller 1, the condenser can heat the gas exhausted from the evaporator, and therefore the gas in the air channel is enabled to be sequentially dehumidified by the evaporator under the driving of the clothes drying fan 2 to become dry air, heated by the condenser to become hot dry air, and changed into humid air through the inside of the clothes drying roller 1, and then dehumidified by the evaporator to form clothes drying circulation until the clothes are dried.

In addition, as shown in fig. 1, the laundry treating apparatus further includes a rotary motor 3, and the rotary motor 3 can simultaneously drive the drying fan 2 and the drying drum 1 to rotate, so that the drying fan 2 and the drying drum 1 can be driven by only one rotary motor 3, thereby reducing cost. Specifically, the rotary motor 3 is a double-headed motor having an output shaft rotating in two directions, one end of the output shaft of the double-headed motor drives the drying drum 1 to rotate, and the other end of the output shaft of the double-headed motor drives the drying fan 2 to rotate.

Preferably, one end of the output shaft of the rotating motor 3 is in transmission connection with a belt pulley, the belt pulley is in transmission connection with the clothes drying roller 1, and one end of the output shaft of the rotating motor 3 drives the clothes drying roller 1 to rotate through the belt pulley. Because the distance between the clothes drying roller 1 and the rotating motor 3 is long, the belt pulley can realize the transmission of long-distance power. In addition, the belt pulley also has the advantages of smooth operation, low noise and low vibration.

In order to solve the problem of clothes winding, the rotating motor 3 is required to drive the clothes drying drum 1 to rotate forward and backward, and the clothes drying fan 2 also rotates forward and backward along with the rotating motor 3. However, when the clothes drying fan 2 rotates reversely along with the rotating motor 3, the clothes drying fan 2 cannot achieve high air pressure and high air volume due to the special blades of the clothes drying fan 2, and the reverse air volume of the clothes drying fan 2 is far lower than that of the forward air volume, so that the clothes drying efficiency is reduced. Although the prior art shows that the rotating motor 3 can drive the clothes drying fan 2 to always keep rotating positively when the rotating motor 3 drives the clothes drying roller 1 to rotate positively and negatively, the arrangement mode needs to arrange a reversing device or an electromagnetic adjusting piece between the rotating motor 3 and the clothes drying fan 2, needs an additional electrical control system, and has a complex structure and inconvenient operation.

In order to solve the above problem, as shown in fig. 1 and fig. 3, the clothes treatment apparatus provided in this embodiment further includes a transmission assembly 4, the transmission assembly 4 includes a gear set and a clutch 43, one end of an output shaft of the rotating motor 3 drives the clothes drying drum 1 to rotate, the other end of the output shaft of the rotating motor 3 drives the clothes drying fan 2 to rotate through the gear set, and the clutch 43 can adjust a rotation direction of the rotating motor 3 driving the clothes drying fan 2, so that when the rotating motor 3 rotates forward or backward, the clothes drying fan 2 keeps rotating forward, thereby ensuring the wind pressure and wind volume of the clothes drying fan 2 and improving the clothes drying effect. In addition, the clutch 43 is used for adjusting the rotating direction of the rotating motor 3 for driving the clothes drying fan 2, so that the clothes drying fan 2 can be ensured to always keep rotating forwards, the transmission is realized completely by depending on a mechanical structure, an additional electric appliance control system is not needed, the structure is simple, and the operation is convenient.

Specifically, as shown in fig. 1, the gear set includes a first bevel gear 41 and a second bevel gear 42, and the clothes drying fan 2 is provided with a third bevel gear 21, the first bevel gear 41 is externally engaged with the second bevel gear 42, the second bevel gear 42 is externally engaged with the third bevel gear 21, and the first bevel gear 41 is arranged opposite to the third bevel gear 21, the first bevel gear 41 and the clothes drying fan 2 are both provided with a clutch 43, and the clutch 43 can adjust the other end of the output shaft of the rotating motor 3 to be in transmission connection with the input shaft of one of the first bevel gear 41 and the clothes drying fan 2. When the rotating motor 3 rotates in the forward direction, the clutch 43 adjusts the output shaft of the rotating motor 3 to be in transmission connection with the input shaft of the clothes drying fan 2, and at the moment, the output shaft of the rotating motor 3 is not in transmission connection with the input shaft of the first bevel gear 41, so that the rotating motor 3 synchronously drives the clothes drying fan 2 to rotate in the forward direction. When the rotating motor 3 rotates reversely, the clutch 43 adjusts the output shaft of the rotating motor 3 to be in transmission connection with the output shaft of the first bevel gear 41, at this time, the output shaft of the rotating motor 3 is not in transmission connection with the input shaft of the clothes drying fan 2, so that the rotating motor 3 synchronously drives the first bevel gear 41 to rotate reversely, because the first bevel gear 41 is externally engaged with the second bevel gear 42, the second bevel gear 42 is externally engaged with the third bevel gear 21 on the clothes drying fan 2, and the first bevel gear 41 and the third bevel gear 21 are oppositely arranged (the rotating directions of the externally engaged bevel gears are either simultaneously directed to the engagement point or simultaneously deviate from the engagement point), so that the third bevel gear 21 rotates forwardly, and when the rotating motor 3 rotates forwardly or reversely, the clothes drying fan 2 keeps rotating forwardly.

Preferably, the first bevel gear 41 and the clothes drying fan 2 are detachably connected with the clutch 43, so that the first bevel gear 41 with different diameters and the different clothes drying fan 2 can be conveniently replaced, the transmission ratio between the meshed gears can be changed, the rotating speed of the clothes drying fan 2 can be adjusted, the requirements for different rotating speeds of the clothes drying fan 2 can be met, and the failed clothes drying fan 2 can be conveniently replaced or maintained by replacing the clothes drying fan 2.

In this embodiment, the clutch 43 is a one-way clutch, since the one-way clutch can only realize the transmission connection in a single direction, as long as the first bevel gear 41 and the one-way clutch on the clothes drying fan 2 are ensured to be in opposite installation manners, only one of the first bevel gear 41 and the one-way clutch on the clothes drying fan 2 can be ensured to be in a locking state, and the other one is in a free state.

It should be noted that, in this embodiment, the one-way clutch on the clothes drying fan 2 is in a forward mounting manner, and the one-way clutch on the first bevel gear 41 is in a reverse mounting manner, that is, when the rotating electrical machine 3 rotates forward, the one-way clutch on the clothes drying fan 2 is in a locking state, the output shaft of the rotating electrical machine 3 is in transmission connection with the input shaft of the clothes drying fan 2, and the one-way clutch on the first bevel gear 41 is in a free state, that is, the one-way clutch on the first bevel gear 41 is in an idle state; when the rotating motor 3 rotates reversely, the one-way clutch on the first bevel gear 41 is in a locked state, the output shaft of the rotating motor 3 is in transmission connection with the input shaft of the first bevel gear 41, and the one-way clutch on the clothes drying fan 2 is in a free state, that is, the one-way clutch on the clothes drying fan 2 is in an idle state.

As a concrete structure of the one-way clutch will be described with reference to fig. 3 and 4, the one-way clutch includes an outer race 431, an inner race 432 and a roller assembly 433, wherein, the outer ring 431 of the one-way clutch arranged on the first bevel gear 41 is fixedly connected with the input shaft of the first bevel gear 41, the outer ring 431 of the one-way clutch arranged on the clothes drying fan 2 is fixedly connected with the input shaft of the clothes drying fan 2, the inner ring 432 is arranged in the outer ring 431 in a penetrating way, the inner ring 432 is fixedly connected with the output shaft of the rotating motor 3, the roller component 433 is arranged between the outer ring 431 and the inner ring 432, when the rotating motor 3 rotates forwards, the one-way clutch on the drying fan 2 is in a locked state, the inner ring 432 of the one-way clutch on the drying fan 2 drives the outer ring 431 to rotate synchronously through the roller component 433, at this time, the one-way clutch on the first bevel gear 41 is in a free state, and an outer race 431 of the one-way clutch on the first bevel gear 41 is stationary relative to an inner race 432; when the rotating motor 3 rotates reversely, the one-way clutch on the first bevel gear 41 is in a locked state, the inner race 432 of the one-way clutch on the first bevel gear 41 drives the outer race 431 to rotate synchronously through the roller assembly 433, at this time, the one-way clutch on the clothes drying fan 2 is in a free state, and the outer race 431 of the one-way clutch on the clothes drying fan 2 is stationary relative to the inner race 432.

It should be noted that, as shown in fig. 3 and 4, the one-way clutch is mounted on the clothes drying fan 2 in a forward direction, when the output shaft of the rotating electrical machine 3 drives the inner ring 432 to rotate forward (the inner ring 432 rotates clockwise in fig. 3), the roller assembly 433 abuts against the inner ring 432, the roller assembly 433 drives the outer ring 431 and the inner ring 432 to rotate synchronously, and when the output shaft of the rotating electrical machine 3 drives the inner ring 432 to rotate reversely (the inner ring 432 rotates counterclockwise in fig. 4), the roller assembly 433 disengages from the inner ring 432. Outer race 431 is stationary with respect to inner race 432, and inner race 432 idles.

Because the one-way clutch on the first bevel gear 41 is installed in a reverse installation manner, when the output shaft of the rotating electrical machine 3 drives the inner race 432 to rotate in the forward direction, the outer race 431 is stationary relative to the inner race 432, the inner race 432 idles, and when the output shaft of the rotating electrical machine 3 drives the inner race 432 to rotate in the reverse direction, the roller assembly 433 drives the outer race 431 and the inner race 432 to rotate synchronously.

Referring to fig. 3 and 4, a specific structure of the roller assembly 433 is described, where the roller assembly 433 includes a plurality of elastic members 4331 and rollers 4332, the inner wall of the outer ring 431 is provided with a plurality of elastic members 4331, the plurality of elastic members 4331 are circumferentially spaced along the outer ring 431, a free end of each elastic member 4331 is connected with a roller 4332, and the roller 4332 can abut against or be separated from the inner ring 432, so as to achieve a locking and a separation state of the one-way clutch. It should be noted that the elastic member 4331 may be a spring, one end of the spring is fixed on the inner wall of the outer ring 431, and the other end of the spring is connected to the roller 4332, and the spring has the advantages of good expansion and contraction performance and low cost.

Further, as shown in fig. 3 and 4, the inner wall of the outer race 431 is provided at intervals in the circumferential direction thereof with a plurality of receiving grooves 4311, and when the rollers 4332 are disengaged from the inner race 432, the rollers 4332 can compress the elastic pieces 4331 so as to be received in the receiving grooves 4311. When the roller 4332 abuts against the inner race 432, the roller 4332 stretches the elastic member 4331 and protrudes from the receiving groove 4311.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Laundry treatment apparatus, characterized by comprising a drying drum (1) and a drying fan (2), the laundry treatment apparatus further comprising:

the transmission assembly (4) comprises a first bevel gear (41), a second bevel gear (42) and a clutch (43), a third bevel gear (21) is arranged on the clothes drying fan (2), the first bevel gear (41) is externally meshed with the second bevel gear (42), the second bevel gear (42) is externally meshed with the third bevel gear (21), the first bevel gear (41) is opposite to the third bevel gear (21), and the clutch (43) is arranged on each of the first bevel gear (41) and the clothes drying fan (2); and

the clothes drying device comprises a rotating motor (3), one end of an output shaft of the rotating motor (3) drives the clothes drying drum (1) to rotate, and a clutch (43) can adjust the other end of the output shaft of the rotating motor (3) to be in transmission connection with an input shaft of one of the first bevel gear (41) and the clothes drying fan (2), so that the clothes drying fan (2) keeps rotating forwards when the rotating motor (3) rotates forwards or backwards.

2. Laundry treatment apparatus according to claim 1, characterized in that the clutch (43) is a one-way clutch.

3. The laundry treating apparatus according to claim 2, wherein the one-way clutch on the drying fan (2) is in a locked state, the one-way clutch on the first bevel gear (41) is in a free state, and the output shaft of the rotary motor (3) is in transmission connection with the input shaft of the drying fan (2) when the rotary motor (3) is rotated in the forward direction;

when the rotating motor (3) rotates reversely, the one-way clutch on the first bevel gear (41) is in a locking state, the one-way clutch on the clothes drying fan (2) is in a free state, and an output shaft of the rotating motor (3) is in transmission connection with an input shaft of the first bevel gear (41).

4. The laundry treating apparatus according to claim 3, wherein the one-way clutch includes:

the outer ring (431), the first bevel gear (41) and the input shaft of the clothes drying fan (2) are fixedly connected with the outer ring (431);

an inner ring (432) which is arranged inside the outer ring (431) in a penetrating manner, wherein the inner ring (432) is fixedly connected with an output shaft of the rotating motor (3); and

a roller assembly (433) disposed between the outer race (431) and the inner race (432);

when the one-way clutch is in the locking state, the inner ring (432) drives the outer ring (431) to synchronously rotate through the roller assembly (433); the outer race (431) is stationary relative to the inner race (432) when the one-way clutch is in the free state.

5. The laundry treating apparatus according to claim 4, wherein the roller assembly (433) includes:

the elastic piece (4331), a plurality of elastic pieces (4331) are arranged on the inner wall of the outer ring (431), and the elastic pieces (4331) are arranged at intervals along the circumferential direction of the outer ring (431); and

a roller (4332), wherein the roller (4332) is connected to the free end of each elastic piece (4331), and the roller (4332) can abut against or separate from the inner ring (432).

6. The laundry treating apparatus according to claim 5, wherein the inner wall of the outer ring (431) is provided with a plurality of receiving grooves (4311) spaced apart in a circumferential direction thereof, and the rollers (4332) can be received in the receiving grooves (4311) when the rollers (4332) are disengaged from the inner ring (432).

7. The laundry treating apparatus according to any one of claims 1 to 6, characterized in that the rotary motor (3) is a double-headed motor having one output shaft rotating bidirectionally.

8. The laundry treatment apparatus according to any one of claims 1-6, characterized in that the drying fan (2) is a centrifugal fan.

9. The laundry treatment apparatus according to any one of claims 1 to 6, characterized in that one end of the output shaft of the rotating motor (3) drives the drying drum (1) to rotate by means of a belt pulley.

10. The laundry treatment apparatus according to any one of claims 1 to 6, characterized in that the first bevel gear (41) and/or the drying fan (2) are detachably connected with the clutch (43).