CN114687155A

CN114687155A - Drum washing machine

Info

Publication number: CN114687155A
Application number: CN202011606548.2A
Authority: CN
Inventors: 郝兴慧; 金学峰; 许升; 郝世龙; 吴迪; 吕艳芬
Original assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-07-01
Anticipated expiration: 2040-12-30
Also published as: CN114687155B

Abstract

The invention belongs to the technical field of washing machines, and discloses a drum washing machine, which comprises an inner barrel and a drainage mechanism, wherein the inner barrel is used for independently containing water in the washing/rinsing process, the drainage mechanism is arranged on the inner barrel and comprises a drainage water channel and a drainage valve component; the water inlet end of the drainage channel is communicated with the inside of the inner barrel, the water outlet end of the drainage channel extends to the outside of the inner barrel, and the drainage valve assembly is used for plugging the water outlet end. According to the drum washing machine, the water drainage channel is arranged on the inner drum, the water outlet end of the water drainage channel is blocked by the water drainage valve assembly in the washing/rinsing process, water in the drum is collected into the water drainage channel during water drainage, and then is discharged from the inner drum, so that independent water containing and drainage of the inner drum are realized, and the water drainage speed is higher.

Description

Drum washing machine

Technical Field

The invention belongs to the technical field of washing machines, and particularly relates to a drum washing machine.

Background

The existing drum washing machine generally comprises an inner drum and an outer drum, wherein a plurality of dewatering holes are arranged on the wall of the inner drum. However, in the washing process, the washing water between the inner tub and the outer tub is not used, resulting in a waste of the washing water. Meanwhile, the dirt generated in the washing process can be partially remained between the inner barrel and the outer barrel and is difficult to clean, and the long-term accumulation can cause pollution to the washing water and influence the washing effect.

In order to solve the above problems, the prior art provides a washing machine without dewatering holes on the inner barrel, so that the inner barrel can independently contain washing water in the washing process, the condition of water storage between the inner barrel and the outer barrel in the washing process can be avoided, the using amount of the washing water is saved, and the condition of dirt accumulation between the inner barrel and the outer barrel is also avoided to a great extent. Meanwhile, because the inner cylinder rotates in the washing process, the drainage of the imperforate inner cylinder cannot be realized by the existing drainage mode.

Chinese patent No. 201910189910.1 discloses a sealed drainage device for a drum washing machine, which comprises an inner drum for independently containing washing water when washing clothes, wherein the inner drum is provided with a drainage port; the plugging component is used for plugging the water outlet of the inner barrel; the sealing part is provided with a sealing element which is in sealing contact with the inner cylinder wall to close the water outlet or is separated from the inner cylinder wall to open the water outlet. The inner cylinder of the washing machine is a container for containing water when a washing program is executed, at least one water outlet is arranged on the inner cylinder, any one of the sealing water draining devices is respectively installed at each water outlet, and the plugging part of the sealing water draining device moves towards the center direction of the inner cylinder under the action of centrifugal force generated by the rotation of the inner cylinder so as to drive the sealing part to be separated from the wall of the inner cylinder and open the water outlet.

However, in the above scheme, the water outlet is arranged on the side wall of the inner cylinder, and the opening range of the water outlet is small, so that the water flow of the drained water is small, and the water drainage speed is slow. Meanwhile, the small flow of the drained water may cause the residue of the thread scraps at the drain outlet, so that the sealing element and the drain outlet cannot be completely closed, and the inner cylinder leaks water after water is re-introduced.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a drum washing machine with a water drainage channel on an inner drum, wherein water in the drum is drained out of the inner drum through the water drainage channel, and the water drainage speed is higher.

In order to solve the technical problems, the invention adopts the technical scheme that:

a drum washing machine comprises an inner drum for independently holding water in the washing/rinsing process, and a drainage mechanism arranged on the inner drum, wherein the drainage mechanism comprises a drainage channel and a drainage valve component; the water inlet end of the drainage channel is communicated with the inside of the inner barrel, the water outlet end of the drainage channel extends to the outside of the inner barrel, and the drainage valve assembly is used for plugging the water outlet end.

Furthermore, the drainage channel extends along the direction parallel to the central axis of the inner cylinder, and the water outlet end of the drainage channel is arranged at the bottom of the inner cylinder or outside the cylinder opening;

preferably, one side inner wall of the drainage water channel is flush with the inner side of the wall of the inner cylinder.

Furthermore, the water outlet end is arranged at the outer side of the cylinder bottom of the inner cylinder, and the diameter of the cylinder wall of the inner cylinder is gradually increased from the cylinder opening to the cylinder bottom;

or the water outlet end is arranged outside the opening of the inner barrel, and the diameter of the barrel wall of the inner barrel is gradually increased from the barrel bottom to the barrel opening.

Furthermore, a water outlet is formed in the inner cylinder, and the water inlet end of the water drainage channel is fixedly connected with the periphery of the water outlet so as to be communicated to the inside of the inner cylinder;

or the water inlet end of the drainage water channel is hermetically inserted in the water outlet and communicated with the inside of the inner cylinder.

Furthermore, the drainage channel extends from the bottom of the inner cylinder to the outer side of the inner cylinder along a direction parallel to the central axis of the inner cylinder, and the direction of the water outlet on the water outlet end is the same as the extending direction of the drainage channel.

Furthermore, the drain valve assembly comprises a sealing element, a centrifugal block, a connecting element and a resetting element, wherein the connecting element is rotatably arranged at the water outlet end of the drain water channel and is respectively connected with the centrifugal block and the sealing element;

the resetting piece acts on the connecting piece and is used for keeping the sealing piece to block the water outlet; the centrifugal block moves centrifugally under the action of the centrifugal force generated by the rotation of the inner barrel to drive the connecting piece to rotate, and further drives the sealing piece to move to open the water outlet.

Further, the connecting piece comprises a first swing arm and a second swing arm which are fixedly connected, and the first swing arm and the second swing arm are arranged at a certain angle and synchronously swing around the rotation center of the connecting piece;

the centrifugal block is fixedly arranged on the first swing arm, and the sealing element is fixedly arranged on the second swing arm;

preferably, the first swing arm is located between the central axes of the drainage channel and the inner cylinder, and swings towards the drainage channel under the centrifugal motion of the centrifugal block to drive the second swing arm to swing towards the direction far away from the water outlet to open the water outlet.

Further, the reset piece acts on the first swing arm, and applies acting force opposite to the centrifugal motion of the centrifugal block to the first swing arm;

preferably, the reset piece is a compression spring arranged between the first swing arm and the outer wall of the drainage channel, and two ends of the compression spring are fixedly connected with the first swing arm and the outer wall of the drainage channel respectively.

Further, the number of the first swing arms is two, and the drainage channel is located between the two first swing arms; set up centrifugal piece respectively on two first swing arms, two centrifugal pieces are installed respectively on the surface that two first swing arms carried on the back mutually.

Furthermore, the drain valve assembly also comprises a mounting piece, the mounting piece comprises a sleeve joint part sleeved on the water outlet end, and the connecting piece is rotatably mounted on the mounting piece;

preferably, one end of the sleeve joint part is sleeved at the water outlet end of the drainage channel in a sealing manner, and the inside of the sleeve joint part is communicated with the water outlet; the sealing piece is in contact sealing with the other end of the sleeve joint part so as to seal the water outlet.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

In the drum washing machine, the water drainage channel is arranged on the inner drum, the water outlet end of the water drainage channel is blocked by the water drainage valve component in the washing/rinsing process, and water in the drum is collected into the water drainage channel during water drainage and then is drained from the inner drum, so that independent water containing and drainage of the inner drum are realized, and the water drainage speed is higher.

In the drum washing machine, the water outlet end of the water drainage channel extends to the bottom of the inner drum or the outer side of the drum opening, so that the space of the periphery of the drum wall of the inner drum is not occupied, and the expansion of the inner drum is facilitated. The direction of the straight radial water outlet end of the cylinder wall of the inner cylinder is gradually enlarged, and in the drainage process, water in the cylinder flows to the end with larger diameter along the cylinder wall under the action of centrifugal force and is easier to discharge out of the inner cylinder through a drainage channel. The orientation of the water outlet is the same as the extending direction of the water drainage channel, so that the water in the water drainage channel is easier to discharge.

In the drum washing machine, the water outlet end of the water drainage channel is provided with the water drainage valve component, and the water drainage valve component can open the water outlet under the action of centrifugal force to realize water drainage. First swing arm sets up between the central axis of drainage water course and inner tube, does not occupy the space of inner tube periphery, and drainage water course sets up between two first swing arms, collides with drainage water course when having avoided first swing arm swing.

In the drum washing machine, the mounting part is sleeved at the water outlet end of the water drainage channel to realize the mounting of the water drainage valve component, and the water drainage valve component can be directly mounted on the water drainage channel as an integral structure, so that the assembly operation is simple.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of an inner tub structure of a drum washing machine according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of the invention at a in fig. 1.

In the figure: 100. an inner barrel; 101. a cylinder bottom; 102. a cylinder mouth; 103. a cylinder wall; 200. a drainage channel; 201. a water inlet end; 202. a water outlet end; 300. a drain valve assembly; 310. a seal member; 320. a centrifugal block; 330. a connecting member; 331. a first swing arm; 332. a second swing arm; 333. a rotating shaft; 340. a reset member.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it for those skilled in the art by reference to specific embodiments.

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 will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not 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" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 and 2, the drum washing machine according to the present embodiment includes an inner tub 100 independently containing water during washing/rinsing, and a drainage mechanism provided on the inner tub 100, the drainage mechanism including a drainage channel 200 and a drainage valve assembly 300. The water inlet end 201 of the drainage channel 200 is communicated with the inside of the inner cylinder 100, the water outlet end 202 extends to the outside of the inner cylinder 100, and the drainage valve assembly 300 is used for plugging the water outlet end 202.

In this embodiment, the wall 103 of the inner tub 100 is not provided with a dewatering hole, and an openable/closable inner tub door (not shown) is installed at the tub opening 102, so that a sealing structure of the inner tub 100 is realized, and water can be independently contained in the washing/rinsing process. The inner cylinder 100 independently holds water, so that the condition of water storage between the inner cylinder and the outer cylinder in the washing process is avoided, the using amount of washing water is saved, and the condition that dirt is accumulated between the inner cylinder and the outer cylinder to influence the sanitation of clothes is also avoided.

In the above scheme, the drainage channel 200 is arranged on the inner barrel 100, the water outlet end 202 of the drainage channel 200 is blocked by the drainage valve assembly 300 in the washing/rinsing process, water in the barrel is collected in the drainage channel 200 during drainage, and then is discharged from the inner barrel 100, compared with the scheme that the drainage hole and the centrifugal valve are arranged on the barrel wall 103 in the prior art, the drainage speed is higher, the drainage time is saved, and meanwhile, the water leakage phenomenon of the inner barrel 100 caused by residual thread scraps at the drainage hole is avoided to a certain extent.

In a further aspect of the present embodiment, the drainage channel 200 extends in a direction parallel to the central axis of the inner cylinder 100, and the water outlet end 202 of the drainage channel 200 is disposed outside the bottom 101 of the inner cylinder 100.

In the above scheme, the water outlet end 202 of the drainage channel 200 is located outside the cylinder bottom 101 and extends horizontally, so that the space around the cylinder wall 103 of the inner cylinder 100 is not occupied, the maximization of the cylinder diameter of the inner cylinder 100 is facilitated, and the expansion of the inner cylinder 100 is realized.

In a preferred embodiment of the present embodiment, the lower inner wall of the drainage channel 200 is flush with the inner side of the cylinder wall 103 of the inner cylinder 100. The inner wall of the drainage channel 200 is flush with the inner side surface of the cylinder wall 103, so that the water in the cylinder is prevented from being blocked when entering the drainage channel 200 from the inner cylinder 100, and the water in the cylinder is easier to discharge through the drainage channel 200.

In a further aspect of this embodiment, the diameter of the cylindrical wall 103 of the inner cylinder 100 gradually increases from the opening 102 toward the bottom 101.

In the above-described embodiment, the outlet end 202 of the drainage channel 200 is located on the side of the cylinder bottom 101, the diameter of the cylinder wall 103 gradually increases toward the cylinder bottom 101, and the water in the cylinder more easily flows in the direction from the cylinder wall 103 toward the cylinder bottom 101, and is discharged from the drainage channel 200 to the inner cylinder 100.

In a further aspect of this embodiment, a water outlet is formed on the inner cylinder 100, and a water inlet end 201 of the water drainage channel 200 is fixedly connected with the outer periphery of the water outlet to communicate with the inside of the inner cylinder 100.

In another embodiment of the present invention, the water inlet end 201 of the drainage channel 200 is hermetically inserted into the drainage port and is communicated with the inside of the inner cylinder 100.

In this embodiment, the drain port is provided in the bottom 101 of the inner cylinder 100, and the drain passage 200 is fitted to the drain port, so that the assembly is simple and the operation is easy.

In a further aspect of the present embodiment, the drainage channel 200 extends from the bottom 101 of the inner cylinder 100 to the outside of the inner cylinder 100 along a direction parallel to the central axis of the inner cylinder 100, and the outlet on the outlet end 202 faces in the same direction as the extension direction of the drainage channel 200.

In the above scheme, the drainage channel 200 extends horizontally rightward from the cylinder bottom 101, and the water outlet is opened on the right end face of the water outlet end 202. The water in the cartridge flows rightwards along the drainage channel 200 after entering the drainage channel 200, the water outlet direction when flowing out from the water outlet is the same as the flowing direction in the drainage channel 200, and the flowing direction is not changed when flowing out, so that the water in the drainage channel 200 is easier to discharge.

In this embodiment, a plurality of drainage mechanisms may be provided, that is, a plurality of drainage channels 200 are provided on the inner barrel 100, and the drainage valve assembly 300 is respectively installed at the water outlet end 202 of each drainage channel 200.

Preferably, the plurality of drainage channels 200 are uniformly distributed along the circumferential direction of the cylinder bottom 101.

In the above scheme, by providing the plurality of drainage channels 200, the plurality of drainage channels 200 can drain water simultaneously in the drainage stage, so that the drainage speed is further increased, and the drainage time is shortened.

The drain valve assembly 300 of the present embodiment specifically includes a sealing member 310, a centrifugal block 320, a connecting member 330 and a reset member 340. The connecting member 330 is rotatably mounted to the outlet end 202 of the drainage channel 200 and is connected to the eccentric block 320 and the sealing member 310, respectively.

The restoring member 340 acts on the connecting member 330 for keeping the sealing member 310 sealing off the water outlet. The centrifugal block 320 moves centrifugally under the centrifugal force of the rotation of the inner barrel 100, and drives the connecting member 330 to rotate, thereby driving the sealing member 310 to move to open the water outlet.

In a further version of this embodiment, the connecting member 330 includes a first swing arm 331 and a second swing arm 332 fixedly connected, the first swing arm 331 and the second swing arm 332 being angularly disposed to swing synchronously about a center of rotation of the connecting member 330.

The eccentric mass 320 is fixedly disposed on the first swing arm 331 and the seal 310 is fixedly disposed on the second swing arm 332.

Preferably, the first swing arm 331 is located between the drainage channel 200 and the central axis of the inner barrel 100, and swings towards the drainage channel 200 under the centrifugal motion of the centrifugal block 320, so as to drive the second swing arm 332 to swing towards the direction away from the water outlet to open the water outlet.

In the above solution, the drain valve assembly 300 blocks the water outlet of the drain channel 200 under the action of the reset member 340, forming the inner cylinder 100 with a sealed structure, thereby independently containing the washing/rinsing water. In the drainage and dehydration stage, the inner cylinder 100 rotates at a high speed, and the drain valve assembly 300 can open the water outlet under the centrifugal force to realize drainage. The first swing arm 331 is disposed between the drainage passage 200 and the central axis of the inner cylinder 100, thereby occupying no space on the outer periphery of the inner cylinder 100 and contributing to increase in the cylinder diameter of the inner cylinder 100.

Further, the restoring member 340 acts on the first swing arm 331 to apply a force to the first swing arm 331 opposite to the centrifugal movement of the centrifugal mass 320.

Preferably, the restoring member 340 is a compression spring disposed between the first swing arm 331 and the outer wall of the drainage passage 200, and upper and lower ends of the compression spring are fixedly connected to the first swing arm 331 and the outer wall of the drainage passage 200, respectively.

In a preferred embodiment of the present embodiment, the first swing arm 331 includes two, and the drainage passage 200 is located between the two first swing arms 331. The two first swing arms 331 are respectively provided with centrifugal blocks 320, and the two centrifugal blocks 320 are respectively installed on the opposite surfaces of the two first swing arms 331.

In order to realize the pushing effect of the restoring member 340 on the first swing arms 331, a connecting rod respectively connected with the two first swing arms 331 is disposed between the two first swing arms 331, and both ends of the restoring member 340 are respectively fixedly connected with the connecting rod and the outer wall of the drainage channel 200.

In the above solution, the first swing arm 331 and the drainage channel 200 are arranged in a manner of being avoided, and the centrifugal block 320 is installed on the surface of the two first swing arms 331 opposite to each other, so that the first swing arm 331 or the centrifugal block 320 is prevented from colliding with the drainage channel 200 when the first swing arm 331 is driven by the centrifugal block 320 to swing.

In a further aspect of this embodiment, the drain valve assembly 300 further includes a mounting member (not shown in the figure), the mounting member includes a sleeve portion sleeved on the water outlet end 202, and the connecting member 330 is rotatably mounted on the mounting member.

Preferably, one end of the sleeve joint part is sleeved on the water outlet end 202 of the drainage channel 200 in a sealing manner, and the interior of the sleeve joint part is communicated with the water outlet. The sealing element 310 is in contact with the other end of the sleeve joint part for sealing to seal the water outlet.

In the above scheme, the installation component is directly sleeved at the water outlet end 202 of the drainage channel 200, so that the installation of the drainage valve assembly 300 can be realized, the drainage valve assembly 300 can be directly installed on the drainage channel 200 as an integral structure, and the assembly operation is simple. The sealing member 310 does not directly contact with the drainage channel 200, but seals the outlet by contacting with the socket of the installation member. The sealing performance of sealing member 310 need not to adjust after installing drain valve assembly 300 to drainage course 200, only needs to adjust drain valve assembly 300 alone, makes sealing member 310 can realize good sealed cooperation with the installation department, then cup joints the installation department to drainage course 200 on can directly use, and is more convenient.

The specific connection structure of the mounting member and the connecting member 330 in this embodiment is as follows. The mounting piece further comprises a connecting part for mounting the connecting part 330, the connecting part is formed by extending the outer wall of one side of the sleeve part close to the central axis of the inner barrel 100 from the outside to the inside in the radial direction of the inner barrel 100, and the connecting part 330 is rotatably connected with the connecting part.

Specifically, the connecting member 330 is provided with a rotating shaft 333, the connecting portion is provided with a shaft hole, and the rotating shaft 333 of the connecting member 330 is rotatably inserted into the shaft hole of the connecting portion, so as to rotatably connect the connecting member 330 and the connecting portion.

The arrangement positions of the rotating shaft 333 and the shaft hole can be reversed, that is, the rotating shaft 333 is arranged on the connecting part, the shaft hole is arranged on the connecting part 330, and the rotating shaft 333 on the connecting part is rotatably inserted into the shaft hole on the connecting part 330, so that the connecting part 330 and the connecting part can be rotatably connected.

In this embodiment, the inner tub 100 of the drum washing machine is provided with the water drainage channel 200, and water in the inner tub 100 is drained out of the inner tub 100 through the water drainage channel 200 during draining, so that the draining speed is higher, and the draining time is saved. Through the position and structural design of the drainage channel 200, the drainage valve assembly 300 installed at the water outlet end 202 of the drainage channel 200 is matched, so that the inner barrel 100 can independently contain water in the washing/rinsing process, and water in the barrel can be more easily discharged from the drainage channel 200 in the drainage stage. The drainage mechanism composed of the drainage channel 200 and the drainage valve assembly 300 is integrally positioned at the rear side of the cylinder bottom 101 of the inner cylinder 100, does not occupy the space at the periphery of the inner cylinder 100, and is beneficial to maximizing the cylinder diameter of the inner cylinder 100, thereby realizing the purpose of expanding the capacity of the inner cylinder 100.

Example two

The present embodiment is different from the first embodiment in that: the water outlet end of the drainage channel is arranged outside the opening of the inner cylinder.

Specifically, the opening of the inner cylinder comprises an annular wall connected with the cylinder wall and an inner cylinder door matched with the annular wall. The annular wall is provided with a water outlet, the water inlet end of the water drainage channel is matched with the water outlet, the water drainage channel extends from the annular wall to the outer side of the cylinder opening along the direction parallel to the central axis of the inner cylinder, and the water outlet at the water outlet end faces the front side of the cylinder opening.

In a preferred embodiment of the present invention, the diameter of the wall of the inner cylinder gradually increases from the bottom of the inner cylinder to the opening of the inner cylinder. In the drainage process, water in the barrel flows to one end with larger diameter of the barrel wall more easily, namely flows to the direction of the barrel opening more easily, and then enters the drainage channel to be discharged out of the inner barrel.

The structure of the drain valve assembly in this embodiment is the same as that in the first embodiment.

The drum washing machine of the present embodiment is similar to the above embodiments, and also has the effects of increasing the drainage speed and saving the drainage time. Meanwhile, the water outlet end of the drainage channel is arranged on the front side of the cylinder opening, so that the space on the periphery of the inner cylinder is not occupied, and the expansion of the inner cylinder is facilitated.

EXAMPLE III

The present embodiment is different from the first embodiment in that: the drainage channel extends along the radial direction of the inner cylinder, and the water outlet end of the drainage channel is arranged on the periphery of the inner cylinder.

Specifically, a water outlet is formed in the wall of the inner cylinder, a water inlet end of the water drainage channel is installed in a matched mode with the water outlet, the water drainage channel extends towards the periphery of the inner cylinder from the wall of the cylinder along the radial direction of the inner cylinder, and a water outlet in the water outlet end faces towards the periphery of the inner cylinder.

The drainage channel can be arranged at one end of the cylinder wall close to the cylinder opening, can also be arranged at one end close to the cylinder bottom, and can also be arranged in the middle of the cylinder wall. The wall of the inner cylinder has the largest diameter on the circumference of the inner cylinder provided with the drainage channel.

In this embodiment, the shutoff a drain valve subassembly structure of delivery port is as follows.

The drain valve assembly comprises a sealing gasket and a balancing weight which are fixedly connected, the balancing weight is connected with the drainage channel through a tension spring, and the sealing gasket blocks the water outlet under the action of the tension spring. In the drainage process, the balancing weight moves under the action of the centrifugal force generated by the rotation of the inner cylinder to drive the sealing gasket to be separated from the water outlet, and the water outlet is opened for drainage.

In this embodiment, the drainage channel is arranged along the radial extension of the inner cylinder, and the flow direction of the water in the cylinder when being discharged from the drainage channel is the same as the centrifugal force direction, so that the drainage speed can be further accelerated under the action of the centrifugal force.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. A drum washing machine comprises an inner drum for independently holding water in the washing/rinsing process, and is characterized by also comprising a drainage mechanism arranged on the inner drum, wherein the drainage mechanism comprises a drainage channel and a drainage valve component; the water inlet end of the drainage channel is communicated with the inside of the inner barrel, the water outlet end of the drainage channel extends to the outside of the inner barrel, and the drainage valve assembly is used for plugging the water outlet end.

2. A drum washing machine according to claim 1, characterized in that the water drainage channel extends in a direction parallel to the central axis of the inner drum, and the water outlet end of the water drainage channel is arranged at the bottom of the inner drum or outside the drum mouth;

3. A drum washing machine as claimed in claim 2 wherein the water outlet end is disposed outside the bottom of the inner drum, and the diameter of the wall of the inner drum increases from the mouth to the bottom;

4. A drum washing machine as claimed in claim 2 or 3 wherein the inner drum is provided with a water outlet, and the water inlet end of the water drainage channel is fixedly connected with the periphery of the water outlet so as to be communicated to the inside of the inner drum;

5. A drum washing machine according to any one of claims 2-4, characterized in that the drainage channel extends from the bottom of the inner drum to the outside of the inner drum in a direction parallel to the central axis of the inner drum, and the outlet on the water outlet end faces in the same direction as the drainage channel.

6. A drum washing machine according to claim 5, characterized in that the drain valve assembly comprises a sealing element, a centrifugal block, a connecting element and a resetting element, wherein the connecting element is rotatably arranged at the water outlet end of the drain channel and is respectively connected with the centrifugal block and the sealing element;

7. A drum washing machine according to claim 6, characterized in that the connecting element comprises a first oscillating arm and a second oscillating arm which are fixedly connected, the first oscillating arm and the second oscillating arm being angularly arranged to oscillate synchronously about the rotation center of the connecting element;

8. A drum washing machine according to claim 7, characterized in that the reset member acts on the first oscillating arm to apply a force to the first oscillating arm opposite to the centrifugal movement of the centrifugal mass;

9. The drum washing machine according to claim 7 or 8, characterized in that the first swing arms comprise two, the water drain passage is located between the two first swing arms; set up centrifugal piece respectively on two first swing arms, two centrifugal pieces are installed respectively on the surface that two first swing arms carried on the back mutually.

10. A drum washing machine according to any one of claims 6-9, characterized in that the drain valve assembly further comprises a mounting member, the mounting member comprises a socket part which is sleeved on the water outlet end, and the connecting member is rotatably mounted on the mounting member;

preferably, one end of the sleeve joint part is sleeved at the water outlet end of the drainage channel in a sealing manner, and the interior of the sleeve joint part is communicated with the water outlet; the sealing piece is in contact sealing with the other end of the sleeve joint part so as to seal the water outlet.