CN108315941B

CN108315941B - Pulsator washing machine

Info

Publication number: CN108315941B
Application number: CN201810269586.XA
Authority: CN
Inventors: 刘彦峰; 刘文祥; 丁兆波; 商庆振
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2018-03-28
Filing date: 2018-03-28
Publication date: 2020-10-20
Anticipated expiration: 2038-03-28
Also published as: CN112048876B; CN108315941A; CN112048876A

Abstract

The invention discloses an impeller type washing machine, and relates to the technical field of washing machines. Three different washing actions can be realized, so that different washing requirements of users are met. The invention relates to a pulsator washing machine, which comprises an inner barrel, a pulsator arranged at the bottom of the inner barrel, a driving device and a transmission assembly, wherein the transmission assembly comprises a washing shaft, a dewatering shaft and a clutch, the washing shaft is connected with the pulsator, the dewatering shaft is connected with the inner barrel, the driving device is in transmission connection with the washing shaft, and the clutch can be switched among a first station, a second station and a third station. The invention can be used for washing drive of the pulsator washing machine.

Description

Pulsator washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a pulsator washing machine.

Background

Washing machines have been introduced into thousands of households at present, and with the improvement of the life quality of people, the concern about whether the washing machines damage clothes is gradually increased.

The current pulsator washing machine achieves the purpose of washing clothes by adopting a mode that a pulsator rotates and a dewatering inner barrel does not rotate, and the washing mode mainly drives water in the dewatering barrel and the clothes to rotate under the quick forward rotation and reverse rotation of the pulsator, so that water flow can generate vortex, the clothes are concentrated towards the middle, and the clothes are extremely easy to wind, especially valuable clothes, and wrinkles and even damages are easily generated.

Disclosure of Invention

The embodiment of the invention provides a pulsator washing machine, which can realize three different washing actions so as to meet different washing requirements of users.

In order to achieve the above object, an embodiment of the present invention provides a pulsator washing machine, including an inner tub, a pulsator disposed at the bottom of the inner tub, a driving device, and a transmission assembly, where the transmission assembly includes a washing shaft, a dewatering shaft, and a clutch, the washing shaft is connected to the pulsator, the dewatering shaft is connected to the inner tub, the driving device is connected to the washing shaft in a transmission manner, the clutch is switchable among a first station, a second station, and a third station, and when the clutch is switched to the first station, the driving device can drive the washing shaft and the dewatering shaft to synchronously rotate; when the clutch is switched to the second station, the driving device only drives the washing shaft to rotate and the dewatering shaft is locked by the clutch; when the clutch is switched to the third station, the driving device only drives the washing shaft to rotate and the dewatering shaft is in an unlocking state.

According to the pulsator washing machine provided by the embodiment of the invention, as the clutch can be switched among the first station, the second station and the third station, when a user needs to wash valuable clothes, the clutch can be switched to the first station, and the driving device can drive the washing shaft and the dewatering shaft to synchronously rotate at the moment, so that the inner drum and the pulsator synchronously rotate, and larger vortex can be prevented from being generated by water flow, and the clothes are prevented from being wound and folded; when the user has large washing quantity at one time and the clothes are common clothes, the clutch can be switched to the second station, and at the moment, the driving device only drives the washing shaft to rotate and the dewatering shaft is locked by the clutch, so that only the impeller rotates and the inner drum does not move, the impeller and the inner drum can relatively rotate, and the washing effect is improved; when the laundry amount is small and the clothes are ordinary clothes, the clutch can be switched to the third station, the driving device only drives the laundry shaft to rotate and the dewatering shaft is in an unlocking state, the friction force between the clothes and water is small when the impeller rotates due to the fact that the clothes are few, and the friction force is not enough to drive the inner drum and the impeller to rotate synchronously, so that the inner drum can rotate in a delayed mode, when the impeller is reversed, the inner drum rotates in the previous direction, the inner drum and the impeller rotate oppositely, the washing effect is guaranteed, and electric energy when the clutch is locked is saved. Therefore, the pulsator washing machine can realize three different washing actions, so that various washing requirements of users can be met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a pulsator washing machine according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a driving device and a clutch of a pulsator washing machine according to an embodiment of the present invention;

FIG. 3 is a schematic view illustrating a state of a clutch in a pulsator washing machine at a third station according to an embodiment of the present invention;

FIG. 4 is a schematic view illustrating a state of a clutch in a pulsator washing machine at a first station according to an embodiment of the present invention;

FIG. 5 is a schematic view illustrating a state of the clutch in the pulsator washing machine at the second station according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1 and 2, a pulsator washing machine according to an embodiment of the present invention includes an inner tub 1, a pulsator 2 disposed at a bottom of the inner tub 1, a driving device 3, and a transmission assembly, where the transmission assembly includes a washing shaft 4, a dewatering shaft 5, and a clutch 6, the washing shaft 4 is connected to the pulsator 2, the dewatering shaft 5 is connected to the inner tub 1, the driving device 3 is in transmission connection with the washing shaft 4, the clutch 6 is switchable among a first station, a second station, and a third station, and when the clutch 6 is switched to the first station, the driving device 3 can drive the washing shaft 4 and the dewatering shaft 5 to rotate synchronously; when the clutch 6 is switched to the second station, the driving device 3 only drives the washing shaft 4 to rotate and the dewatering shaft 5 is locked by the clutch 6; when the clutch 6 is switched to the third station, the driving device 3 only drives the washing shaft 4 to rotate and the dewatering shaft 5 is in an unlocked state.

According to the pulsator washing machine provided by the embodiment of the invention, as the clutch 6 can be switched among the first station, the second station and the third station, when a user needs to wash valuable clothes, the clutch 6 can be switched to the first station, and the driving device 3 can drive the washing shaft 4 and the dewatering shaft 5 to synchronously rotate at the moment, so that the inner drum 1 and the pulsator 2 synchronously rotate, and larger vortex can be prevented from being generated by water flow, and the clothes are prevented from being wound and wrinkled; when the user has a large amount of clothes to be washed at one time and the clothes are ordinary clothes, the clutch 6 can be switched to the second station, and at the moment, the driving device 3 only drives the washing shaft 4 to rotate and the dewatering shaft 5 is locked by the clutch 6, so that only the impeller 2 rotates and the inner drum 1 does not move, the impeller 2 and the inner drum can relatively rotate, and the washing effect is improved; when the laundry amount is small and the clothes are ordinary clothes, the clutch 6 can be switched to the third station, the driving device 3 only drives the laundry shaft 4 to rotate and the dewatering shaft 5 is in an unlocking state, the friction force between the clothes and water is small when the impeller 2 rotates due to the small amount of clothes, the inner drum and the impeller 2 cannot be driven to rotate synchronously, so that the inner drum can rotate in a delayed mode, and when the impeller 2 is reversed, the inner drum rotates in the previous direction, so that the inner drum and the impeller 2 rotate oppositely, the washing effect is guaranteed, and the electric energy of the clutch 6 during locking is saved. Therefore, the pulsator washing machine can realize three different washing actions, so that various washing requirements of users can be met.

It should be noted that, when the washing machine dehydrates, as shown in fig. 1, the water in the inner drum can be drained through the drain valve 7, and then the clutch 6 is switched to the first station, so that the inner drum 1 and the pulsator 2 rotate synchronously. The rotation speed is higher during dehydration and lower during washing. Wherein, the drain valve 7 can be connected with a drain motor 8, and the control unit of the washing machine controls the opening and closing of the drain valve 7 by controlling the drain motor 8.

Wherein, the implementation manner of the clutch 6 is various, such as an electromagnetic clutch 6 with three stations can be selected, in an embodiment of the present invention, as shown in fig. 2 and fig. 3, the clutch 6 includes a fixing frame 61, a connector 62 and a switching device 63, the dehydrating shaft 5 is disposed on the fixing frame 61 and rotates relative to the fixing frame 61, the connector 62 is sleeved on the dehydrating shaft 5 in a transmission manner, the connector 62 can slide along the axial direction of the dehydrating shaft 5, and can transmit torque between the connector 62 and the dehydrating shaft 5, the upper end surface of the connector 62 is provided with upper engaging teeth 621, the lower end surface of the connector 62 is provided with lower engaging teeth 622, the driving device 3 includes a rotor 31 located below the fixing frame 61, the rotor 31 is in transmission connection with the washing shaft 4, the connector 62 is located between the rotor 31 and the fixing frame 61, the upper end surface of the rotor 31 is provided with rotor engaging teeth 311, the lower end surface of the fixing frame 61 is provided with fixing teeth 611, and the switching device 63 can drive the connector 62 to slide along the dehydrating shaft 5. When the clutch 6 is switched to the first station, as shown in fig. 4, the switching device 63 drives the connector 62 to slide to the first position, and the lower engaging teeth 622 of the connector 62 are engaged with the rotor engaging teeth 311 of the rotor 31, so that the connector 62 drivingly connects the rotor 31 and the dehydrating shaft 5, and the rotor 31 can drive the dehydrating shaft 5 and the washing shaft 4 to synchronously rotate; when the clutch 6 is switched to the second position, as shown in fig. 5, the switching device 63 drives the connector 62 to slide to the second position, the upper engaging teeth 621 of the connector 62 are engaged with the fixing teeth 611 of the fixing frame 61, so that the connector 62 is locked by the fixing teeth 611 of the fixing frame 61, and the dehydrating shaft 5 is locked, and at this time, when the rotor 31 drives the washing shaft 4 to rotate, the dehydrating shaft 5 and the inner tub do not rotate; when the clutch 6 is switched to the third station, as shown in fig. 3, the switching device 63 drives the connector 62 to slide to the third position, the connector 62 is not in contact with the rotor 31 and the fixed frame 61, the connector 62 is in the middle suspension position and is not limited by rotation, so that the inner cylinder is in a free state, and at this time, when the rotor 31 drives the washing shaft 4 to rotate, the inner cylinder can realize delayed reverse rotation. The clutch 6 can realize the switching of three stations, and has simple structure and stable transmission.

Specifically, the arrangement positions of the washing shaft 4 and the dehydrating shaft 5 may be, as shown in fig. 2, such that the washing shaft 4 is disposed to axially penetrate the dehydrating shaft 5, and the washing shaft 4 is rotatable with respect to the dehydrating shaft 5, the connector 62 is in driving connection with the dehydrating shaft 5 through a first spline extending in the axial direction of the dehydrating shaft 5, and the rotor 31 is in driving connection with the washing shaft 4 through a second spline extending in the axial direction of the washing shaft 4. The structure can realize the coaxial rotation of the inner cylinder and the impeller 2, and saves the arrangement space of the washing shaft 4 and the dewatering shaft 5.

The movement and the reset of the connector 62 can be completely realized by the driving of the switching device 63, or the reset movement of the connector 62 can be realized by a reset element, as shown in fig. 2, a reset spring 64 can be arranged between the connector 62 and the fixing frame 61. When the switching device 63 drives the connector 62 to move downwards, the reset spring 64 can be pressed to store energy, and when the force of the switching device 63 is removed, the reset spring 64 can jack the connector 62 to reset through the reset force, so that the reset position can be more accurate, and the energy consumption can be reduced.

Wherein, the switching device 63 may adopt the structure shown in fig. 2, the switching device 63 includes a shifting fork 631 and a traction motor 632, one end of the shifting fork 631 is engaged with the connector 62, the other end of the shifting fork 631 is connected with a swing rod 633, the swing rod 633 is hinged on the fixed mount 61, and one end of the swing rod 633 far away from the shifting fork 631 is connected with the traction motor 632 through a traction spring 634, the traction motor 632 can pull the swing rod 633 to swing around its hinged shaft through the traction spring 634, a torsion spring (not shown in the figure) is disposed on the hinged shaft of the swing rod 633, when the traction spring 634 is pulled by the traction motor 632, the lower end of the swing rod 633 can rotate towards the traction motor 632, the upper end of the swing rod 633 (i.e. the end connected with the shifting fork 631) can rotate downwards, so as to apply a downward thrust to the connector 62, and the thrust can make the connector 62 slide downwards along the dewatering shaft, when the traction motor 632 releases the traction spring 634, the shift fork 631 may swing upward by the restoring force of the torsion spring, and the connector 62 may slide upward by the restoring force of the return spring 64.

Specifically, as shown in fig. 2, the traction motor 632 may include a rotating disc 6321, a rotating shaft 6322 is disposed at an edge of the rotating disc 6321, and the traction spring 634 is connected to the rotating shaft 6322. When the rotary plate 6321 rotates around its center, the rotary shaft 6322 is driven to rotate around the center of the rotary plate 6321, thereby tightening or loosening the traction spring 634.

In order to control the rotation angle of the turntable to realize three position movements of the connector 62, the traction motor 632 may be connected to a control unit of the pulsator washing machine, and the control unit may control the rotation angle of the turntable of the traction motor 632, thereby realizing control of the shift fork 631 so that the connector 62 can be maintained at three different positions.

Because the washing effect is reduced when the inner cylinder 1 and the impeller 2 synchronously rotate, in order to ensure the washing effect, as shown in fig. 1, a raised water stirring rib 9 can be arranged on the inner side wall of the inner cylinder 1. Therefore, when the inner barrel 1 rotates, the water stirring ribs 9 can fluctuate water flow in the inner barrel, so that the flowability of the water flow is enhanced, and the washing effect is improved.

In order to further improve the washing effect, as shown in fig. 1, the water-repellent ribs 9 are preferably provided in plurality, and the plurality of water-repellent ribs 9 are distributed along the circumferential direction of the inner sidewall of the inner tub 1. Therefore, the flowability of the water flow can be further enhanced, and the washing effect is better.

The extending direction of the water-stirring bar 9 can be selected in many ways, for example, it can extend along the axial direction of the inner cylinder, or it can be disposed obliquely with respect to the axis of the inner cylinder, and it is not limited herein. In order to enhance the water-repelling effect, the water-repelling rib 9 can be a solid structure without holes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A pulsator washing machine is characterized by comprising an inner barrel, a pulsator arranged at the bottom of the inner barrel, a driving device and a transmission assembly, wherein the transmission assembly comprises a washing shaft, a dewatering shaft and a clutch, the washing shaft is connected with the pulsator, the dewatering shaft is connected with the inner barrel, the driving device is in transmission connection with the washing shaft, the clutch can be switched among a first station, a second station and a third station,

when the clutch is switched to the first station, the driving device can drive the washing shaft and the dewatering shaft to synchronously rotate;

when the clutch is switched to the second station, the driving device only drives the washing shaft to rotate and the dewatering shaft is locked by the clutch;

when the clutch is switched to the third station, the driving device only drives the washing shaft to rotate and the dewatering shaft is in an unlocking state.

2. The pulsator washing machine as claimed in claim 1, wherein the clutch comprises a fixing frame, a connector and a switching device, the dehydrating shaft is inserted into the fixing frame and rotates relative to the fixing frame, the connector is rotatably sleeved on the dehydrating shaft and slides along the dehydrating shaft, the upper end surface of the connector is provided with upper engaging teeth, the lower end surface of the connector is provided with lower engaging teeth, the driving device comprises a rotor located below the fixing frame, the rotor is rotatably connected with the dehydrating shaft, the connector is located between the rotor and the fixing frame, the upper end surface of the rotor is provided with rotor engaging teeth, the lower end surface of the fixing frame is provided with fixing teeth, and the switching device drives the connector to slide along the dehydrating shaft,

when the clutch is switched to the first station, the switching device drives the connector to slide to a first position, and lower meshing teeth of the connector are meshed with rotor meshing teeth of the rotor;

when the clutch is switched to the second station, the switching device drives the connector to slide to a second position, and upper meshing teeth of the connector are meshed with the fixed teeth of the fixing frame;

when the clutch is switched to the third station, the switching device drives the connector to slide to a third position, and the connector is not meshed with the rotor and the fixing frame.

3. The pulsator washing machine as claimed in claim 2, wherein the washing shaft is disposed through the dehydrating shaft in an axial direction, and the washing shaft is rotatable with respect to the dehydrating shaft, the connector is drivingly connected with the dehydrating shaft through a first spline extending in the axial direction of the dehydrating shaft, and the rotor is drivingly connected with the washing shaft through a second spline extending in the axial direction of the washing shaft.

4. The pulsator washing machine according to claim 3, wherein a return spring is provided between the connector and the holder.

5. The pulsator washing machine according to claim 2, wherein the switching device comprises a shifting fork and a traction motor, one end of the shifting fork is in fit joint with the connector, the other end of the shifting fork is connected with a swing rod, the swing rod is hinged on the fixed frame, one end of the swing rod, which is far away from the shifting fork, is connected with the traction motor through a traction spring, the traction motor can pull the swing rod to swing around a hinged shaft of the swing rod through the traction spring, and a torsional spring is arranged on the hinged shaft of the swing rod.

6. The pulsator washing machine according to claim 5, wherein the traction motor comprises a turntable, a rotating shaft is provided at an edge of the turntable, and the traction spring is connected to the rotating shaft.

7. The pulsator washing machine according to claim 6, comprising a control unit connected to the traction motor, the control unit being capable of controlling a rotation angle of a turntable of the traction motor.

8. The pulsator washing machine as claimed in any one of claims 1 to 7, wherein the inner side wall of the inner tub is provided with raised water-repellent ribs.

9. The pulsator washing machine according to claim 8, wherein the water-repellent ribs are plural, and the plural water-repellent ribs are distributed along a circumferential direction of the inner sidewall of the inner tub.

10. The pulsator washing machine according to claim 8, wherein the water-repellent rib is parallel to or inclined with respect to an axis of the inner tub.