CN106835628B

CN106835628B - Washing machine

Info

Publication number: CN106835628B
Application number: CN201710109510.6A
Authority: CN
Inventors: 管学伟; 严书林; 朱彪; 余德涛
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2017-02-27
Filing date: 2017-02-27
Publication date: 2024-04-19
Anticipated expiration: 2037-02-27
Also published as: CN106835628A

Abstract

The invention discloses a washing machine, which comprises: the bottom of the inner barrel is provided with a drain hole; a sealing plate rotatably installed on the bottom of the inner tub and capable of opening and closing the drain hole by rotation; a clutch disposed below the inner tub and including: the first shaft is fixedly connected with the inner barrel, and the second shaft is fixedly connected with the sealing plate; a motor selectively driving the first shaft and the second shaft. According to the washing machine disclosed by the invention, the sealing plate can seal the drain hole before water enters the washing machine, so that water in the inner barrel cannot flow into the outer barrel, the water consumption of the washing machine during washing can be reduced, and the water can be saved. And when washing machine washing is accomplished and drainage is needed, the sealing plate can open the wash port, and water level sensor can effectively perception surplus water yield.

Description

Washing machine

Technical Field

The present invention relates to a washing machine.

Background

The conventional pulsator washing machine has two problems because water is arranged between the inner tub and the outer tub: water consumption: in the washing process of the pulsator washing machine, the inner barrel and the outer barrel are communicated, and water is filled in the inner barrel and the outer barrel, but only water in the inner barrel is really needed for washing, so that water is wasted; pollution: when the clothes washing machine is used for a long time, dirt is accumulated between the inner barrel and the outer barrel, bacteria are bred, and secondary pollution is caused in the water exchange process between the inner barrel and the outer barrel.

In addition, there are the following problems in the current pulsator washing machine in the market, in which no water exists between the inner tub and the outer tub: because the outer tub has no water, the conventional water level sensor cannot sense the water level, so that it cannot be determined whether the water has been discharged.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides a washing machine which can save water and effectively drain water.

The washing machine according to the present invention includes: the bottom of the inner barrel is provided with a drain hole; a sealing plate rotatably installed on the bottom of the inner tub and capable of opening and closing the drain hole by rotation; a clutch disposed below the inner tub and including: the first shaft is fixedly connected with the inner barrel, and the second shaft is fixedly connected with the sealing plate; a motor selectively driving the first shaft and the second shaft.

According to the washing machine disclosed by the invention, the sealing plate can seal the drain hole before water enters the washing machine, so that water in the inner barrel cannot flow into the outer barrel, the water consumption of the washing machine during washing can be reduced, and the water can be saved. And when washing machine washing is accomplished and drainage is needed, the sealing plate can open the wash port, and water level sensor can effectively perception surplus water yield.

In addition, the washing machine according to the present invention may further have the following distinguishing technical features:

in some examples of the invention, the first sleeve is disposed on the second shaft.

In some examples of the present invention, a stopper for limiting the rotation angle of the second shaft is provided on the second shaft.

In some examples of the invention, the second shaft has a rotation angle between 60 ° and 90 °.

In some examples of the present invention, the drain holes are plural and are symmetrically arranged with respect to the center of the inner tub, the sealing plate has sealing pieces corresponding to the drain holes, and a relief groove is provided between two adjacent sealing pieces and the two adjacent sealing pieces are spaced apart.

In some examples of the invention, the outer edge of each of the sealing sheets is arcuate.

In some examples of the invention, the bottom of the inner tub is provided with a plurality of reinforcing ribs on the outer circumference of the sealing sheet.

In some examples of the invention, the sealing plate is disposed above a bottom of the inner tub.

In some examples of the invention, a sealing strip is provided on a lower surface of the sealing plate.

In some examples of the invention, the washing machine further comprises: the outer barrel is sleeved on the outer side of the inner barrel; the drain valve is connected to the outer barrel; and a water level sensor provided at the drain valve.

Drawings

Fig. 1 is a schematic structural view of a washing machine according to an embodiment of the present invention;

Fig. 2 is a sectional view of a washing machine according to an embodiment of the present invention;

Fig. 3 is an enlarged view of region a in fig. 2;

Fig. 4 and 5 are schematic views of the seal plate in an open position and a closed position, respectively.

Reference numerals:

A washing machine 100;

an inner tub 10; a drain hole 11; reinforcing ribs 12;

a sealing plate 20; a sealing sheet 21; the avoidance groove 22;

A clutch 30; a first shaft 31; a second shaft 32;

a sealing strip 40; an outer tub 50; a drain valve 60; a water level sensor 70.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

Hereinafter, a washing machine 100 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 5.

The washing machine 100 according to an embodiment of the present invention may include: the inner tub 10, the sealing plate 20, the clutch 30, and the motor, of course, the washing machine 100 may further include other components, for example, an outer tub 50, the outer tub 50 being sleeved outside the inner tub 10.

As shown in fig. 3 and 4, the bottom of the inner tub 10 is provided with a drain hole 11, the drain hole 11 may function to drain water in the inner tub 10, a sealing plate 20 may be rotatably installed on the bottom of the inner tub 10, and the sealing plate 20 may open and close the drain hole 11 by rotating. It will be appreciated that the sealing plate 20 may seal the drain hole 11 before the washing machine 100 is supplied with water, so that water in the inner tub 10 will not flow into the outer tub 50, thereby reducing the amount of water used in washing the laundry in the washing machine 100 and saving water.

It should be noted that, when the washing machine 100 washes, the sealing plate 20 will be always in the closed position closing the drain hole 11, so that the water in the inner tub 10 can be continuously prevented from flowing to the outer tub 50.

Also, when the washing of the washing machine 100 is completed and drainage is required, the sealing plate 20 may open the drainage hole 11, wherein, as shown in fig. 1, the washing machine 100 may further include: a drain valve 60 and a water level sensor 70, the drain valve 60 being connected to the outer tub 50, the water level sensor 70 being provided at the drain valve 60. At this time, the drain valve 60 is opened, the water level sensor 70 detects the remaining water amount, and the washing machine 100 may perform a dehydrating operation after detecting that there is no water in the drain valve 60.

The driving manner of the sealing plate 20 will be described in detail below.

As shown in conjunction with fig. 2 and 3, the clutch 30 is disposed under the inner tub 10, and the clutch 30 includes: the first shaft 31 and the second shaft 32, the first shaft 31 is fixedly connected with the inner tub 10, specifically, the first shaft 31 is fixedly connected with the inner tub 10 through a connection disc, the second shaft 32 is fixedly connected with the sealing plate 20, specifically, the second shaft 32 is in sealing fit with the sealing plate 20, and the second shaft 32 is rigidly coupled with the sealing plate 20 through a nut.

The motor selectively drives the first shaft 31 and the second shaft 32. For example, when the motor drives the first shaft 31, the inner tub 10 rotates along with the first shaft 31, the washing machine 100 may perform a dehydrating operation, and for example, when the motor drives the second shaft 32, the sealing plate 20 rotates along with the second shaft 32, and the sealing plate 20 may open or seal the drain hole 11. It should be noted that, the speed of the sealing plate 20 is low when it rotates, or the rotational speed of the motor is low when it drives the second shaft 32, and the value of the low speed is not limited, and the setting personnel can set the value according to experience.

Further, the motor can be rotated in the forward and reverse directions, so that the motor can be rotated in the reverse direction to reciprocally open and close the drain hole 11 by changing the rotation direction when the motor drives the second shaft 32, thereby making it possible to make the opening and closing manner of the sealing plate 20 simple and the set opening and closing procedure simple.

Specifically, the first shaft 31 is sleeved on the second shaft 32. Thus, the clutch 30 occupies a small space, and has compact structure and reasonable layout.

According to a preferred embodiment of the present invention, a stopper for limiting the rotation angle of the second shaft 32 is provided thereon. Other parts of the washing machine 100 may be matched with the stopper, for example, a limiting groove may be formed in other parts of the washing machine 100, after the second shaft 32 rotates by a predetermined angle, a side wall of the limiting groove and a side wall of the limiting groove are mutually stopped, the sealing plate 20 cannot continue to rotate, and the sealing plate is kept at the open position or the closed position, at this time, the motor current will increase instantaneously, and the motor stops running after detecting that the motor current increases instantaneously.

Alternatively, the second shaft 32 may be rotated at an angle of between 60 ° and 90 °. In this way, the rotation angle of the sealing plate 20 can be made appropriate, the sealing plate 20 can be conveniently and rapidly switched between the open position and the closed position, and the efficiency of the washing machine 100 can be improved.

The structures of the drain hole 11 and the sealing plate 20 will be described in detail with reference to fig. 3 and 4.

The drain holes 11 may be plural, for example, two, and the plural drain holes 11 are symmetrically disposed about the center of the inner tub 10, the sealing plate 20 has sealing pieces 21 corresponding to the plural drain holes 11, the escape groove 22 is provided between the adjacent two sealing pieces 21, and the adjacent two sealing pieces 21 are disposed at intervals. That is, when the sealing piece 21 is located directly above the drain hole 11, the sealing plate 20 is in the closed position, and when the escape groove 22 is located directly above the drain hole 11, the sealing plate 20 is in the open position. Thus, by reasonably designing the sealing sheets 21, the sealing plate 20 can be reasonably arranged in structure, the sealing plate 20 can synchronously seal the plurality of drain holes 11, and the sealing plate 20 can be simple and reliable in structure.

Alternatively, as shown in fig. 3 and 4, the outer edge of each sealing sheet 21 may be arc-shaped. The sealing plate 21 with the arc-shaped edge can facilitate the rotation thereof, and the interference between the edge of the sealing plate 21 and other parts of the inner tub 10 can be avoided.

Further, as shown in fig. 3 and 4, the bottom of the inner tub 10 is provided with a plurality of reinforcing ribs 12 on the outer circumference of the sealing plate 21. The reinforcing ribs 12 thus effectively reinforce the inner tub 10, wherein the reinforcing ribs 12 are generally I-shaped.

Alternatively, the sealing plate 20 may be disposed above the bottom of the inner tub 10. The sealing plate 20 is arranged in a reasonable position, so that the sealing plate 20 can be conveniently assembled and disassembled, the assembly efficiency of the washing machine 100 can be improved, and the working reliability of the sealing plate 20 can be improved.

Further, as shown in fig. 3, a sealing strip 40 is provided on the lower surface of the sealing plate 20. The sealing strip 40 and the sealing plate 20 may be adhesively bonded, for example, by glue. By arranging the sealing strip 40, the sealing performance of the sealing plate 20 for sealing the drain hole 11 can be improved, water in the inner barrel 10 can be effectively prevented from flowing to the outer barrel 50, and water can be better saved.

The operation principle of the washing machine 100 according to the present invention will be described in detail with reference to fig. 3 and 4.

Before the washing machine 100 is supplied with water, the motor drives the sealing plate 20 to rotate clockwise at a low speed through the second shaft 32, and the second shaft 32 is blocked after rotating clockwise by a certain angle due to the limiting block arranged on the second shaft 32, the sealing plate 20 stops rotating, the motor current can be increased instantaneously, and the motor stops running after the motor current is detected to be increased instantaneously. At this time, the sealing plate 20 seals the drain hole 11, and the washing machine 100 may start washing after the motor stops rotating.

When the washing machine 100 is finished in washing and water is required to be drained, the motor drives the sealing plate 20 to rotate anticlockwise at a low speed through the second shaft 32, and the second shaft 32 is blocked after rotating anticlockwise by a certain angle due to the limiting block arranged on the second shaft 32, the sealing plate 20 stops rotating, the motor current can be increased instantaneously, and the motor stops running after the motor current is detected to be increased instantaneously. At this time, the sealing plate 20 may open the drain hole 11, and the drain valve 60 is opened, the water level sensor 70 detects the remaining water amount, and the washing machine 100 may perform a dehydrating operation after detecting that there is no water in the drain valve 60.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A washing machine, comprising:

the bottom of the inner barrel is provided with a drain hole;

a sealing plate rotatably installed on the bottom of the inner tub and capable of opening and closing the drain hole by rotation;

A clutch disposed below the inner tub and including: the first shaft is fixedly connected with the inner barrel, the second shaft is fixedly connected with the sealing plate, and the first shaft is sleeved on the second shaft;

a motor that selectively drives the first shaft and the second shaft;

The second shaft is provided with a limiting block for limiting the rotation angle of the second shaft, other parts of the washing machine are provided with limiting grooves, after the second shaft rotates by a preset angle, the side walls of the limiting block and the side walls of the limiting grooves are mutually abutted, the sealing plate cannot continue to rotate and is kept at an opening position or a closing position, at the moment, the motor current can be increased instantaneously, and the motor stops running after the motor current is detected to be increased instantaneously;

The drainage holes are formed in a plurality of mode and are symmetrically arranged with respect to the center of the inner barrel, the sealing plate is provided with sealing sheets corresponding to the drainage holes, and an avoidance groove is formed between two adjacent sealing sheets and is arranged at intervals between two adjacent sealing sheets.

2. A washing machine as claimed in claim 1 wherein the second shaft is rotated through an angle of between 60 ° and 90 °.

3. The washing machine as claimed in claim 1, wherein an outer edge of each of the sealing sheets is arc-shaped.

4. A washing machine as claimed in claim 3, wherein the bottom of the inner tub is provided with a plurality of reinforcing ribs on the outer circumference of the sealing sheet.

5. The washing machine as claimed in claim 1, wherein the sealing plate is disposed above a bottom of the inner tub.

6. The washing machine as claimed in claim 5, wherein a sealing strip is provided on a lower surface of the sealing plate.

7. The washing machine as claimed in claim 1, further comprising:

the outer barrel is sleeved on the outer side of the inner barrel;

the drain valve is connected to the outer barrel;

And a water level sensor provided at the drain valve.