阅读说明：本技术 滚筒洗衣机 (Drum washing machine ) 是由 洪卓青 张海燕 蔡尚文 于 2020-05-14 设计创作，主要内容包括：本发明公开了一种滚筒洗衣机,包含具有衣物投入口的洗衣桶,由弹性材料制成且具有褶皱部的密封圈与所述衣物投入口连接,密封圈底部具有与洗衣桶内流体相通的排水孔,推顶件设置于密封圈下方,且可受驱动装置驱动而移动到向上顶起密封圈的褶皱部的第一位置。密封圈的褶皱部被推顶件向上顶起后,可使皱褶部底部的积水从排水孔排出,从而保持密封圈干燥,防止霉菌的产生。(The invention discloses a drum washing machine, which comprises a washing barrel with a clothes input opening, wherein a sealing ring which is made of elastic materials and is provided with a fold part is connected with the clothes input opening, the bottom of the sealing ring is provided with a drain hole communicated with fluid in the washing barrel, and a pushing piece is arranged below the sealing ring and can be driven by a driving device to move to a first position for pushing up the fold part of the sealing ring. After the fold part of the sealing ring is pushed upwards by the pushing piece, accumulated water at the bottom of the fold part can be drained from the drain hole, so that the sealing ring is kept dry, and mildew is prevented.)

1. A drum washing machine comprising a washing tub (3) having a laundry inlet (30) to which a gasket (4) made of an elastic material and having a corrugated portion (41) is connected, a gasket bottom having a drain hole (42) communicating with a fluid in the washing tub, characterized in that: the ejector (51) is arranged below the sealing ring and can be driven by a driving device (52) to move to a first position for ejecting the fold part of the sealing ring upwards.

2. A drum washing machine according to claim 1, characterized in that: the ejector piece can be driven by the driving device to move to a second position for resetting the sealing ring.

3. A drum washing machine according to claim 2, characterized in that: when the ejector is located at the second position, the ejector is separated from the sealing ring.

4. A drum washing machine according to claim 1, characterized in that: the control device is arranged to control the driving device to drive the ejector to move to the first position after the washing program is finished.

5. A drum washing machine according to claim 4, characterized in that: the control device is configured to enable the driving device to drive the ejector to perform at least one switching motion between the first position and the second position after the last dewatering process of the washing program is finished.

6. A drum washing machine according to claim 4, characterized in that: the control device is configured to enable the driving device to drive the ejection piece to perform a plurality of switching movements between the first position and the second position after the last dewatering process of the washing program is finished.

7. A drum washing machine according to claim 1, characterized in that: the ejector is driven by the driving device to reciprocate up and down.

8. A drum washing machine according to claim 1, characterized in that: the ejector is driven by the driving device to do circular motion.

9. A drum washing machine according to claim 1, characterized in that: the drive device comprises a motor (521).

[ technical field ] A method for producing a semiconductor device

The present invention relates to a drum washing machine, which comprises a seal ring arranged on a clothes inlet of a washing barrel.

[ background of the invention ]

The drum washing machine includes a tub having a laundry input port. A seal ring made of an elastic material and having a wrinkle part is connected to the laundry inlet. After the washing process is completed, the washing water may remain at the bottom of the wrinkle portion of the gasket. These residual washing water provide conditions for the growth of bacteria, which over time leads to the moulding of the sealing rings, causing secondary pollution of the clothes, and also affecting the service life of the sealing rings.

[ summary of the invention ]

It is an object of the present invention to reduce residual water in the seal ring.

An embodiment of the present invention provides a drum washing machine including a washing tub having a laundry inlet, a packing ring made of an elastic material and having a corrugated portion connected to the laundry inlet, a drain hole communicating with a fluid in the washing tub formed at a bottom of the packing ring, and a pushing member disposed below the packing ring and movable by a driving unit to a first position pushing up the corrugated portion of the packing ring. After the fold part of the sealing ring is pushed upwards by the pushing piece, accumulated water at the bottom of the fold part can be drained from the drain hole, so that the sealing ring is kept dry, and mildew is prevented.

In addition, the ejector piece can be driven by the driving device to move to a second position for resetting the sealing ring.

In some embodiments, the ejector is out of contact with the seal ring when the ejector is in the second position.

The control device is configured to control the driving device to drive the ejector to move to the first position after the last dewatering process of the washing program is finished. The bottom of the corrugated portion where the residual water is stored is lifted up, so that the residual water flows toward the drain hole.

In some embodiments, the control device is configured to cause the driving device to drive the ejector to perform at least one switching movement between the first position and the second position after the last dewatering process of the washing program is finished.

In some embodiments, the control device is configured to cause the drive device to drive the ejector to perform a plurality of switching movements between the first position and the second position after the washing program is finished. Under the multiple conversion movement, the bottom of the sealing ring is lifted for multiple times, and the sealing ring shakes, so that residual water on the sealing ring is shaken off better and is discharged from the water discharge hole.

In some embodiments, the ejector is driven by a driving device to reciprocate up and down.

In some embodiments, the ejector is driven by a driving device to perform a circular motion.

An alternative embodiment further comprises that the drive means comprise an electric motor.

The above embodiments may be combined arbitrarily.

Some embodiments of the invention will be illustrated in the following description with reference to the drawings.

[ description of the drawings ]

FIG. 1 is a side schematic view of a drum washing machine;

fig. 2A is a schematic front view of the ejector and the sealing ring according to the first embodiment;

FIG. 2B is a side view of a portion of the ejector and the sealing ring according to the first embodiment;

fig. 3A is a schematic front view of an ejector according to a second embodiment;

fig. 3B is a side view schematically illustrating an ejector according to a second embodiment;

fig. 4 is a schematic front view of an ejector according to a third embodiment.

[ detailed description ] embodiments

As shown in fig. 1, the drum washing machine 1 includes a cabinet 2 and a washing tub 3 provided in the cabinet 2. The washing tub 3 has a laundry inlet 30 opened at an axial end portion and facing the front portion of the cabinet 2. An annular packing 4 made of an elastic material connects the laundry inlet 30 with the cabinet 2.

The gasket 4 has a corrugated portion 41 to allow the tub 3 to maintain a sealing connection between the laundry inlet 30 and the cabinet 2 by deformation of the corrugated portion 41 when vibration occurs in the cabinet 2.

Water enters the wrinkle part 41 during washing, and thus a drainage problem needs to be considered. The bottom of the gasket 4 is provided with a drain hole 42 communicating with the fluid in the tub 3. This facilitates the draining of water into the tub 3 through the drain hole 42 by gravity.

However, the water drain holes 42 cannot drain the water in the wrinkle part 41 due to the production or the aging degradation of the wrinkle part 41. In order to improve the drainage, an ejector 5 controlled by a control device 10 is arranged below the sealing ring 4. Specifically, the ejector 5 is disposed below the wrinkle portion 41. The pushing device 5 is disposed below the seal ring 4 in the six o' clock direction, or vertically below the axis, when viewed from the front of the drum washing machine 1. The pushing device 5 can push up the bottom of the corrugated part 41 of the sealing ring 4 near the position of the drain hole 42, so that the water accumulated therein can be better drained from the drain hole 42.

The ejector 5 may have various embodiments. As shown in fig. 2A to 4, the ejector 5 should generally include an ejector 51 and a driving device 52 disposed below the seal ring 4. The driving device 52 can directly or indirectly drive the ejector 51 to move to the first position for ejecting the fold portion 41 of the seal ring 4 upward. At the same time, the ejector 51 is also driven by the drive 52 from the first position back to the second position, in which the sealing ring 4 is reset. Here, "reset" may refer to a position where the bottom of the seal ring 4 is in a free state, or may refer to a lowest position where the bottom of the seal ring 4 is still pushed by the pushing member 51 but reaches within the pushing range of the pushing member 51. In some embodiments, when the ejector 51 is in the second position, the ejector 51 is out of contact with the sealing ring 4, and the bottom of the sealing ring 4 is free. In some embodiments, the ejector 51 is always in contact with the sealing ring 4. When the ejector 51 is in the second position, the ejector 51 still contacts or pushes the sealing ring 4 upwards, but the magnitude of the pushing is minimal. The first position may refer to a position where the top end of the ejector 51 in the vertical direction is located at the highest position that can be reached.

After the washing procedure is finished, the control device 10 controls the driving device 52 to drive the ejector 51 to move to the first position, so that the bottom of the corrugated portion 41 of the sealing ring 4 is lifted, and accumulated water is drained from the drainage hole 42.

An advantageous embodiment further comprises that the control device 10 is configured to cause the drive device 52 to drive the ejector 51 to perform at least one switching movement between the first position and the second position after the washing program is finished, i.e. to return to the second position after the crumple section 41 is pushed upwards.

Other embodiments further comprise that the control device 10 is configured to cause the drive device 52 to drive the ejector 51 to perform a plurality of switching movements between the first position and the second position after the washing program is finished. The corrugated portion 41 is thus lifted and restored several times, allowing accumulated water to be more thoroughly drained. Furthermore, by adjusting the frequency of the transition of the ejector 51 between the first position and the second position, the corrugated portion 41 can be made to have a vibrating effect, so that water attached to a higher position can be shaken off.

Three specific embodiments of the ejector 5 are illustrated below.

The first embodiment:

as shown in fig. 2A and 2B, the driving device 52 includes a motor 521 and a transmission member 522. The ejector 51 includes a rotating rod 511 rotated by the transmission member 522. When the rotating lever 511 is rotated to the vertically upward position shown in fig. 2A and 2B, the top end 512 of the rotating lever 511 pushes the corrugated portion 41 of the gasket 4 upward to a state shown by a dotted line in fig. 2B, so that the accumulated water can easily enter the water discharge hole 42 along the inclined upper surface of the corrugated portion 41. The rotating rod 511 is inclined at a certain angle and then is separated from the sealing ring 4, and the sealing ring 4 hangs down freely. The rotating rod 511 pushes up the packing 4 once per one rotation.

In the present embodiment, the angular range in which the rotation lever 511 and the seal ring 4 are in contact with each other can be regarded as the first position, and the angular range in which the rotation lever 511 and the seal ring 4 are out of contact with each other can be regarded as the second position.

In other alternative embodiments not shown in the figures, the rotating lever 511 can also be replaced by a cam that performs a rotational movement. The outer surface of the cam pushes the corrugated portion 41 of the seal ring 4.

Second embodiment:

as shown in fig. 3A and 3B, the driving device 52 includes a motor 521 and a transmission member 522. The pushing member 51 includes a reciprocating rod 513 driven by the transmission member 522 to move up and down. The top end 514 of the reciprocating rod 513 pushes the fold 4 of the sealing ring 4 upwards. The transmission member 522 may have various forms, and in the embodiment shown in fig. 3A and 3B, the transmission member 522 includes a cam 523. The cam 523 rotates to push the reciprocating lever 513 to move up and down.

The third embodiment:

as shown in fig. 4, the driving device 52 includes a motor 521 and a transmission member 522. The pushing member 51 includes a reciprocating rod 515 driven by the transmission member 522 to move up and down. The top end 516 of the reciprocating rod 515 can push the fold portion 4 of the sealing ring 4 to move upwards. The transmission member 522 includes a rack 524, which is coupled to a gear (not shown) and reciprocates up and down, thereby driving the reciprocating rod 515 to reciprocate up and down. Wherein the reciprocating lever 515 may also be provided integrally with the rack gear 524.

The various embodiments described above and shown in the drawings are merely illustrative of the invention. Any modification of the present invention by a person of ordinary skill in the related art within the scope of the basic technical idea of the present invention is within the scope of the present invention.