CN113089274B

CN113089274B - Washing barrel assembly, washing machine and control method of washing machine

Info

Publication number: CN113089274B
Application number: CN202110316557.6A
Authority: CN
Inventors: 胡蓉; 巨瑞成; 蒙骏鹏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2022-03-01
Anticipated expiration: 2041-03-23
Also published as: CN113089274A

Abstract

The invention provides a washing tub assembly, a washing machine and a control method thereof. The washing tub assembly includes: the washing device comprises an inner barrel, a washing cavity is formed inside the inner barrel, and a drain hole is formed in the bottom wall of the inner barrel; the impeller is arranged in the washing cavity; the driving mechanism is in driving connection with the inner barrel and the impeller so as to drive the impeller to rotate and drive the inner barrel and the impeller to synchronously rotate; the telescopic mechanism is arranged on a fixed support piece on the lower side of the inner barrel, has an extending state and seals the drain hole in the extending state, and also has a contracting state, and opens the drain hole in the contracting state. The invention ensures that bacteria are not easy to breed in the washing barrel and can also reduce the using amount of washing water.

Description

Washing barrel assembly, washing machine and control method of washing machine

Technical Field

The invention relates to the technical field of washing equipment, in particular to a washing barrel assembly, a washing machine and a control method of the washing barrel assembly.

Background

The peripheral wall of an inner barrel of the existing pulsator washing machine is provided with a plurality of dewatering holes, the inner barrel is communicated with an outer barrel, the inner barrel is a clothes storage area and is used for washing clothes, the part of water filled between the inner barrel and the side wall of the outer barrel does not participate in washing, and the part of water really participating in washing is the part in the inner barrel, so that the water resource waste is huge. In addition, the excessive water between the inner barrel and the outer barrel can reduce the concentration of the detergent and influence the washing effect, meanwhile, as the water flow frequently enters and exits between the inner barrel and the outer barrel, after the washing machine is continuously used, the area between the side walls of the inner barrel and the outer barrel also forms a space for storing dirt and dirt, and water scale in tap water, free matters of washing powder, cellulose of clothes, organic matters of human bodies and dust and bacteria brought by the clothes are easily remained between the side walls of the inner barrel and the outer barrel. The mold is bred and propagated because a large amount of dirt accumulated in the long-term used washing machine cannot be effectively removed, and if the dirt which cannot be seen by a user is not cleaned, bacteria can be attached to clothes after next washing to bring to a human body, so that the problem of cross infection is caused.

However, the washing tub structure of the conventional pulsator washing machine causes that the space between the inner and outer tubs is difficult to clean, and often a user cannot finish the space by himself, which causes great influence on the health of the washing machine.

Disclosure of Invention

In view of this, the present invention provides a washing tub assembly, a washing machine and a control method thereof, at least for solving the technical problem in the prior art that bacteria are easily bred between an inner tub and an outer tub of a washing tub, specifically:

in a first aspect, the present invention provides a washing tub assembly comprising:

the washing device comprises an inner barrel, a washing cavity is formed inside the inner barrel, and a drain hole is formed in the bottom wall of the inner barrel;

the impeller is arranged in the washing cavity;

the driving mechanism is in driving connection with the inner barrel and the impeller so as to drive the impeller to rotate and drive the inner barrel and the impeller to synchronously rotate;

a telescopic mechanism arranged on the fixed support part at the lower side of the inner barrel, wherein the telescopic mechanism has an extending state and plugs the drain hole in the extending state,

the telescopic mechanism also has a contraction state, and the drain hole is opened in the contraction state.

Further optionally, a stopper is disposed on the bottom wall of the inner barrel, the stopper is located at one side of the drainage hole,

when the telescopic mechanism is in an extending state, the stop block and the telescopic mechanism limit the inner barrel in the rotating direction of the inner barrel.

Further optionally, the stopper is configured as an arc-shaped plate-shaped structure extending along a circumferential direction of the drain hole.

Further optionally, the telescoping mechanism comprises:

the guide cylinder is fixedly arranged on the fixed support piece;

the first elastic piece is arranged in the guide cylinder;

the telescopic part is slidably arranged in the guide cylinder and is positioned at the upper part of the first elastic part;

a retractor connected with the telescopic part;

the telescopic part can be contracted when the retractor is pulled and can extend out under the elasticity of the first elastic piece.

Further optionally, the telescoping section comprises a positioning cylinder and a sealing assembly,

the positioning cylinder is of a cylindrical structure and is used for limiting with the stop block;

the sealing assembly is arranged in the positioning cylinder and used for plugging the drain hole.

Further optionally, the seal assembly is slidably disposed within the positioning cartridge,

a second elastic piece is arranged in the positioning cylinder and used for pushing the sealing component to slide upwards through elastic force,

the retractor is coupled to the seal assembly.

Further optionally, the positioning cylinder is configured as a double-layer cylinder structure, and comprises an inner-layer cylinder and an outer-layer cylinder, the inner-layer cylinder and the outer-layer cylinder are connected at a first end, the first end extends into the guide cylinder,

the second elastomeric member and the seal assembly are disposed within the inner barrel.

Further optionally, the second end of the inner barrel of the positioning barrel is located inside the outer barrel.

Further optionally, the seal assembly comprises:

the first end of the pull rod is connected with the tractor, and the second end of the pull rod is provided with a mounting part which is used for being abutted against the second elastic piece;

and the sealing element is arranged on the mounting part and is used for abutting against the drainage hole and plugging the drainage hole.

Further optionally, the washing tub assembly further comprises an outer tub constituting the fixing support, the telescopic mechanism is disposed on the outer tub, the inner tub and the outer tub can only communicate through the drain hole,

the outer tub is also provided with a drainage system for draining washing water.

In a second aspect, the present invention provides a washing machine including the above-described washing tub assembly.

In a third aspect, a control method of the washing machine is provided, including:

in a washing mode, the telescopic mechanism is in an extending state, the water discharging hole is blocked, the impeller rotates, and the inner barrel does not rotate;

in the dehydration mode, the telescopic mechanism is in a contracted state, the drain hole is opened, and the inner barrel rotates.

The invention plugs the drain hole on the inner barrel through the telescopic mechanism, and can limit the inner barrel by utilizing the telescopic mechanism, thereby omitting an outer barrel or preventing washing water from entering between the inner barrel and the outer barrel. Avoiding the pollution of bacteria between the inner and outer barrels to the washed clothes and reducing the using amount of the washing water.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

Fig. 1 shows a structural schematic view (washing state) of a washing tub assembly of the present invention;

FIG. 2 shows an enlarged view at A in FIG. 1;

fig. 3 shows a schematic view of the structure of the washing tub assembly of the present invention (dehydration or drainage state);

fig. 4 shows an enlarged view at B in fig. 3.

In the figure:

10. an inner barrel; 11. a drain hole; 12. a stopper; 20. an impeller; 30. a drive mechanism; 41. a guide cylinder; 421. an outer layer cylinder; 422. an inner layer cylinder; 43. a first elastic member; 44. a retractor; 441. a hauling rope; 451. a pull rod; 452. a seal member; 46. a second elastic member; 50. an outer tub; 51. and (4) draining the water valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The invention plugs the drain hole on the inner barrel through the telescopic mechanism, and can limit the inner barrel by utilizing the telescopic mechanism, thereby omitting an outer barrel or preventing washing water from entering between the inner barrel and the outer barrel. Avoiding the pollution of bacteria between the inner and outer barrels to the washed clothes and reducing the using amount of the washing water. The invention is described in detail below with reference to specific examples:

as shown in fig. 1, 2, 3 and 4, the present invention provides a washing tub assembly including:

the washing machine comprises an inner barrel 10, wherein a washing cavity is formed inside the inner barrel 10, a drain hole 11 is formed in the bottom wall of the inner barrel 10, and preferably, a guide hole which is concave inwards to the inside of the washing cavity is formed at the drain hole 11;

a pulsator 20 disposed in the washing chamber;

a driving mechanism 30 drivingly connected to the inner tub 10 and the pulsator 20, and capable of driving the pulsator 20 to rotate, and driving the inner tub 10 and the pulsator 20 to rotate synchronously, preferably, the driving mechanism 30 includes a driving motor drivingly connected to the pulsator 20, and capable of driving the pulsator 20 to rotate, and the driving motor is further connected to the inner tub 10 through a clutch, such that the inner tub 10 rotates during dehydration, and does not rotate during washing;

the telescopic mechanism is arranged on a fixed support part at the lower side of the inner barrel 10, is separated from the inner barrel 10, has an extending state and blocks the drain hole 11 in the extending state, and also has a contracting state, and the drain hole 11 is opened in the contracting state.

Preferably, the washing tub assembly further includes an outer tub 50, the outer tub 50 constitutes a fixed support, the telescopic mechanism is disposed on the outer tub 50, the inner tub 10 and the outer tub 50 can only communicate through the drain holes 11, i.e., no through hole is disposed on the outer wall of the inner tub 10, and the washing water cannot enter the outer tub 50. The outer tub 50 is further provided with a drain system for draining the washing water, and preferably, the drain system includes a drain valve 51, a drain pipe, and the like. The outer tub 50 is preferably smaller than the inner tub 10 in an axial direction, and may be formed higher than the bottom wall of the inner tub 10, and the outer tub 50 may be provided to form a sump for receiving the washing water and then draining the washing water through a drainage system when the inner tub 10 discharges the washing water.

Specifically, a stopper 12 is disposed on the bottom wall of the inner barrel 10, the stopper 12 is located on one side of the water drain hole 11, and in the rotation direction of the inner barrel 10, the stopper 12 is located on the downstream side of the water drain hole 11, when the telescopic mechanism is in the extended state, the stopper 12 and the telescopic mechanism limit the inner barrel 10 in the rotation direction of the inner barrel 10, so that the rotation of the inner barrel 10 can be stopped, the telescopic mechanism blocks the water drain hole 11, and the telescopic mechanism is guaranteed to be capable of accurately blocking the water drain hole 11.

Preferably, the stopper 12 is configured as a semicircular arc-shaped plate extending along the circumferential direction of the drain hole 11 with an opening facing the drain hole 11, and the semicircular arc-shaped structure facilitates its engagement with the telescopic mechanism and can increase the contact area of the stopper 12 with the telescopic mechanism.

The telescopic machanism includes: a guide cylinder 41 fixedly disposed on the fixed supporter (i.e., the outer tub 50);

a first elastic member 43 disposed in the guide cylinder 41, preferably, the first elastic member 43 is a pressure spring;

a telescopic part which is slidably arranged in the guide cylinder 41 and is positioned at the upper part of the first elastic piece 43;

the retractor 44 is connected with the telescopic part, the retractor 44 and the guide cylinder 41 are respectively positioned at two sides of the bottom wall of the outer barrel 50, a hole communicated with the guide cylinder 41 is formed in the bottom wall of the outer barrel 50, a traction rope 441 of the retractor 44 penetrates through the hole to be connected with the telescopic part, and preferably, the retractor 44 can also be replaced by a driving component such as a motor;

the telescopic part can be retracted into the guide cylinder 41 when the retractor 44 is pulled, and simultaneously the first elastic member 43 is compressed to generate elastic force, and when the retractor 44 releases the telescopic part, the telescopic part is extended out of the guide cylinder 41 under the elastic force of the first elastic member 43.

Preferably, the telescopic part comprises a positioning cylinder and a sealing assembly, wherein the positioning cylinder is constructed into a cylindrical structure and is used for limiting with the stop block 12; the sealing assembly is arranged in the positioning cylinder and used for sealing the water drainage hole 11.

In this embodiment, the sealing assembly is slidably disposed in the positioning cylinder, a second elastic member 46 is further disposed in the positioning cylinder, the second elastic member 46 is preferably a pressure spring, the second elastic member 46 is used for pushing the sealing assembly to slide upwards by the elastic force, a retractor 44 is connected to the sealing assembly, and the retractor 44 pulls the positioning cylinder to retract by the sealing assembly.

When the retractor 44 pulls the sealing assembly, the second elastic element 46 is elastically deformed first, the sealing assembly slides into the positioning cylinder continuously along with the continuous pulling of the retractor 44, meanwhile, the first elastic element 43 also starts to be elastically deformed, the positioning cylinder starts to slide into the guide cylinder 41 until the sealing element 452 slides into the positioning cylinder, and the positioning cylinder slides into the guide cylinder 41, at this time, the telescoping mechanism is in a retracted state, as shown in fig. 4.

When the retractor 44 releases the sealing element 452, the first elastic element 43 first recovers the shape to push the positioning cylinder to extend to the outside of the guiding cylinder 41, then the retractor 44 continues to release, the second elastic element 46 also starts to recover the shape to push the sealing element 452 to extend to the outside of the positioning cylinder, and the sealing element 452 abuts against the drainage hole 11, at which time the telescopic mechanism is in the extended state, as shown in fig. 2.

Preferably, the positioning cylinder is configured as a double-cylinder structure, and comprises an inner cylinder 422 and an outer cylinder 421, wherein the inner cylinder 422 is used for guiding the sliding of the sealing element 452, and the outer cylinder 421 is mainly used for limiting the position of the stopper 12. The inner layer cylinder 422 and the outer layer cylinder 421 are connected at a first end, the first end extends into the guide cylinder 41, and the second elastic member 46 and the sealing assembly are disposed in the inner layer cylinder 422. The area between the first end closure inner cylinder 422 and the outer cylinder 421 forms the end face of the positioning cylinder, which is intended to abut against the first resilient element 43.

The second end of the inner barrel 422 of the positioning barrel is positioned inside the outer barrel 421, so that the outer barrel 421 can firstly extend out and contact with the stopper 12 on the inner barrel 10 to form a limiting structure.

The seal assembly includes: the first end of the pull rod 451 is connected with the tractor 44, the second end of the pull rod 451 is provided with a mounting part, the mounting part is used for abutting against the second elastic piece 46, and meanwhile, the mounting part is matched with the inner cylinder 422 to form a guide structure in the sliding process of the pull rod 451;

and a sealing member 452 mounted on the mounting portion for abutting against and sealing the water discharge hole 11. Preferably, the seal 452 is configured as a rubber ring that is fitted over the mounting portion and is able to slide with the pull rod 451. Further, sealing parts are formed on the side peripheral wall and the end face of the sealing member 452, and sealing contact is formed between the side peripheral wall of the sealing member 452 and the drain hole 11 and between the end face of the sealing member 452 and the drain hole 11, so that sealing effect is ensured.

The present invention also provides a washing machine including the above washing tub assembly, and a control method of the washing machine includes:

in the washing mode, the telescopic mechanism is in an extending state, the water discharge hole 11 is blocked, the impeller 20 rotates, and the inner barrel 10 does not rotate. Specifically, during water inflow and washing, the telescopic mechanism extends out to block the water discharge hole 11, so as to prevent the washing water from flowing out of the inner barrel 10.

In the dehydration mode, the telescopic mechanism is in a contracted state, the water discharge hole 11 is opened, the inner tub 10 is rotated, and the washing water in the inner tub 10 is discharged through the water discharge hole 11 during the rotation. Similarly, when the water is drained after the washing mode is completed, the telescopic mechanism is also in a contracted state, and the water drain hole 11 is kept open.

After the dehydration is completed, the rotation speed of the inner tub 10 is gradually reduced, and when the rotation speed is reduced to about 50rap/min, the traction rope 441 is released by the traction device 44, and the positioning tub moves upward under the elastic force of the first elastic member 43 until the top surface of the outer tub 421 of the positioning tub exceeds the stopper 12. The stopper 12 rotating with the inner barrel 10 contacts with the outer barrel 421 of the positioning barrel and is blocked by the outer barrel 421, so that the inner barrel 10 stops rotating. At this time, the retractor 44 is released continuously, and the positioning cylinder extends out continuously under the elastic force of the first elastic element 43 and slowly slides into the positioning hole at the bottom of the inner barrel 10, so as to realize the positioning function. Then, the retractor 44 continuously releases the pulling rope 441, the second elastic element 46 pushes the pulling rod 451 to slide under the action of the elastic force, the sealing element 452 is pushed into the water drainage hole 11 and is pressed in the water drainage hole 11 to close the water drainage hole 11.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A washing tub assembly, comprising:

the impeller is arranged in the washing cavity;

the telescopic mechanism is also provided with a contraction state, and the drain hole is opened in the contraction state;

the telescopic mechanism comprises:

the guide cylinder is fixedly arranged on the fixed support piece;

the first elastic piece is arranged in the guide cylinder;

a telescopic part which is arranged in the guide cylinder in a sliding way and is positioned at the upper part of the first elastic part, the telescopic part comprises a positioning cylinder and a sealing component, the positioning cylinder is constructed into a cylindrical structure,

the positioning cylinder is of a double-layer cylinder structure and comprises an inner-layer cylinder and an outer-layer cylinder, the inner-layer cylinder and the outer-layer cylinder are connected at a first end, the first end extends into the guide cylinder, and a second end of the inner-layer cylinder of the positioning cylinder is positioned inside the outer-layer cylinder;

a retractor connected with the telescopic part;

2. The washing tub assembly of claim 1, wherein a stopper is provided on a bottom wall of the inner tub, the stopper being located at one side of the drain hole,

3. The wash tub assembly of claim 2 wherein the stopper is configured as an arcuate plate-like structure extending circumferentially of the drain hole.

4. The washing tub assembly of claim 3,

5. The wash tub assembly of claim 4, wherein the seal assembly is slidably disposed within the positioning drum,

the retractor is coupled to the seal assembly.

6. The wash tub assembly of claim 5 wherein said second resilient member and said seal assembly are disposed in said inner drum.

7. A washing tub assembly according to any of claims 5-6, characterized in that the sealing assembly comprises:

8. The wash tub assembly of any of claims 1-6, further comprising an outer tub constituting the fixed support, the telescopic mechanism being disposed on the outer tub, the inner tub and the outer tub being communicable only through the drain hole,

9. A washing machine comprising a washing tub assembly as claimed in any one of claims 1 to 8.

10. A control method of a washing machine according to claim 9, comprising: