CN115726161A

CN115726161A - Water collecting device of washing machine, washing machine and control method

Info

Publication number: CN115726161A
Application number: CN202111003664.XA
Authority: CN
Inventors: 劳春峰; 金学峰; 许升; 郝兴慧; 吴迪; 吕艳芬
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2023-03-03

Abstract

The invention belongs to the technical field of washing machines and discloses a water collecting device of a washing machine, the washing machine and a control method, wherein the water collecting device comprises a bottom wall and a side wall surrounding the bottom wall for one circle, a water collecting cavity is formed by the surrounding of the bottom wall and the side wall, the local part of the side wall protrudes towards the outer side of the water collecting cavity to form a water outlet end surface forming a certain angle with the side wall, and a water outlet is formed in the water outlet end surface; and a flow guide structure for guiding water flow to the water outlet is arranged in the water collecting cavity. According to the water collecting device, the water outlet end face is formed by the local bulge of the side wall, the water outlet is formed, the water outlet direction of the water collecting device is close to the circumferential extension direction of the side wall, and the water flow is guided to the water outlet by matching with the flow guide structure, so that the water flow can flow along the inner surface of the side wall and flow out of the water outlet, the drainage efficiency of the water collecting device is improved, and the effect of preventing the water flow from splashing can be achieved.

Description

Water collecting device of washing machine, washing machine and control method

Technical Field

The invention belongs to the technical field of washing machines, and particularly relates to a water collecting device of a washing machine, the washing machine and a control method.

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.

For example, the chinese patent application No. 201910189910.1 discloses a sealed drainage device for a drum washing machine, which includes 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 solutions, the water outlet is disposed on the sidewall of the inner cylinder, and in order to collect and discharge the water discharged from the inner cylinder, the structure of the outer cylinder needs to be retained, or at least a water collecting device with a length capable of covering the entire range from the cylinder opening to the cylinder bottom of the inner cylinder is disposed below the inner cylinder, and the expansion of the inner cylinder cannot be effectively realized. On the other hand, because the inner cylinder discharges water outwards by means of centrifugal force, the discharged water flow has high speed, the discharged water flow collides with the inner wall of the water collecting device, and the phenomenon that the water flow splashes and then splashes out of the water collecting device is inevitable. The water flow impacting the inner wall of the water collecting device may cause the partial flow of the water flow to be not smooth, thereby affecting the efficiency of the water flow discharged from the water collecting device, and in case of serious water leakage, the water collecting device may overflow, and the water leakage fault of the washing machine may occur.

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

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a water collecting device of a washing machine, the washing machine and a control method.

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

a water collecting device of a washing machine comprises a bottom wall and a side wall surrounding the bottom wall for a circle, wherein a water collecting cavity is formed by the bottom wall and the side wall in a surrounding mode; and a flow guide structure for guiding water flow to the water outlet is arranged in the water collecting cavity.

Furthermore, the flow guide structure comprises a first flow guide surface which is arranged towards the bottom wall and extends towards the direction of the water outlet, and the distance between one end, far away from the water outlet, of the first flow guide surface and the bottom wall is larger than the distance between one end, close to the water outlet, of the first flow guide surface and the bottom wall;

and/or, the water conservancy diversion structure includes dorsad the diapire sets up, and to the second water conservancy diversion face that the delivery port place orientation extends, the distance between one end that the delivery port was kept away from to the second water conservancy diversion face and the diapire is less than the distance between the one end and the diapire that are close to the delivery port.

Furthermore, the water outlet end surface is perpendicular to the bottom wall of the water collecting device, and the water outlet is formed in one side, close to the bottom wall, of the water outlet end surface; the flow guide structure comprises a first flow guide surface, and the first flow guide surface extends towards the bottom wall from one side far away from the bottom wall in an inclined manner;

or the water outlet end surface is perpendicular to the bottom wall of the water collecting device, and the water outlet is formed in one side, far away from the bottom wall, of the water outlet end surface; the flow guide structure comprises a second flow guide surface, and the second flow guide surface extends from the bottom wall to the direction away from the bottom wall in an inclined mode.

Furthermore, a water baffle formed by extending towards the inner side of the side wall is arranged at one end of the side wall, which is protruded towards the outside of the water collecting cavity and is far away from the bottom wall;

preferably, the water outlet is arranged on the water outlet end surface far away from the bottom wall, the flow guide structure comprises a second flow guide surface back to the bottom wall, and the distance between the second flow guide surface and the water baffle is gradually reduced towards the direction close to the water outlet.

Furthermore, the water collecting device is provided with a volute structure, the side wall has a spiral projection on the plane of the bottom wall, and the projection of the water outlet end surface on the plane of the bottom wall is connected with two ends of the spiral;

preferably, the water outlet is directed in a tangential direction of the outer circumferential surface of the sidewall.

Furthermore, the middle area of the bottom wall is provided with a boss protruding towards the inner side of the water collecting cavity, and a certain interval is formed between the peripheral side surface of the boss and the inner side of the side wall of the water collecting device.

The invention also provides a washing machine, which comprises a drum and the water collecting device of the washing machine, wherein the drum is provided with a water outlet communicated with the water collecting cavity of the water collecting device.

Furthermore, a water drainage channel is arranged on the roller, the water inlet end of the water drainage channel is communicated with the water outlet of the roller, and the water outlet end of the water drainage channel is arranged in the water collecting cavity;

preferably, the drainage channel extends along a direction parallel to the central axis of the roller, and the water outlet end of the drainage channel is positioned outside the bottom of the roller;

preferably, one end of the cylinder wall of the roller, which is close to the cylinder bottom, is provided with a connecting wall, and the connecting wall is provided with a conical surface structure which extends from the cylinder opening to the cylinder bottom and has a gradually reduced diameter; the water outlet is arranged on the connecting wall, and the water inlet end of the water drainage channel is connected to the connecting wall.

Furthermore, a sealed drainage device is arranged in the roller and used for plugging a drainage port on the connecting wall; the sealed drain device includes:

a centrifugal part moving under the action of the centrifugal force generated by the rotation of the drum;

the plugging component is used for plugging the water outlet and is connected with the centrifugal component, and the centrifugal component moves under the action of centrifugal force to drive the plugging component to move in a direction vertical to the connecting wall to open the water outlet;

preferably, a lifting rib is arranged on the inner side of the cylinder wall of the roller, the lifting rib is arranged close to the cylinder bottom, and a hollow cavity is formed inside the lifting rib; the sealed drainage device is arranged in the hollow cavity of the lifting rib.

The third objective of the present invention is to provide a control method for a washing machine as described above, wherein during the draining and/or dehydrating process, the drum is controlled to rotate continuously, and the rotation direction of the drum is the same as the water outlet direction of the water outlet on the water collecting device.

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

According to the invention, the side wall local bulge of the water collecting device is arranged, so that a water outlet end face forming a certain angle with the side wall can be formed, the water outlet end face is provided with the water outlet, the water outlet direction of the water collecting device is close to the circumferential extension direction of the side wall, and the water collecting device is matched with the flow guide structure arranged in the water collecting cavity, so that water flow in the water collecting cavity flows towards the water outlet direction along the inner surface of the side wall, and then flows out of the water outlet, the water flow splashing caused by water flow splashing can be reduced, and meanwhile, the drainage efficiency of the water collecting device can be improved.

In the invention, the flow guide surface is arranged as the flow guide structure, so that the water flow in the water collection cavity can flow along the flow guide surface and is further guided to the water outlet to be discharged out of the water collection device. The flow guide surface is an inclined surface which is inclined and extends relative to the bottom wall, the structure is simple, and the flow guide effect is good. The setting of breakwater has prevented that the rivers in the water-collecting cavity from the uncovered one side outflow of water-collecting device, simultaneously can with the cooperation of the second water conservancy diversion face of slope, form the rivers passageway that reduces along rivers flow direction width gradually, guide rivers to the delivery port discharge effectively.

In the invention, the water collecting device is provided with a volute structure, so that the inner surface of the side wall has a flow guide effect on water flow, the water flow can be promoted to flow along the wall, and the water collecting device has a water splashing prevention effect. When water-collecting device was applied to among the washing machine, the rotation of cooperation cylinder in water-collecting device can further improve the velocity of flow of rivers, flow from the delivery port with higher speed rivers adherence and flow, further improved water-collecting device's drainage efficiency.

According to the invention, the roller is provided with the water drainage channel extending to the inside of the water collecting cavity, water is drained to the water collecting device through the water drainage channel, and water flow drained from the roller is more concentrated, so that the water flow can flow along the wall in the water collecting device more easily. The rotation direction when the control cylinder outwards drains water is the same with the play water direction of delivery port on the water-collecting device, also the rotation direction of cylinder is the same with the direction that the intracavity rivers of catchmenting flow to the delivery port along the lateral wall internal surface for rivers have the motion trend that flows to the delivery port promptly when discharging from the cylinder, have further improved the adherent velocity of flow of rivers, have avoided the emergence of the splash condition, have improved the drainage efficiency of water-collecting device.

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 a water collecting apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the water collecting device according to another angle in the embodiment of the present invention;

FIG. 3 is a schematic outline view of a water collection device in an embodiment of the present invention;

FIG. 4 is a front view of a water collection device in an embodiment of the present invention;

FIG. 5 isbase:Sub>A schematic view of section A-A of FIG. 4 in accordance with the present invention;

FIG. 6 is a schematic view showing the structure of a drum according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a sealing drainage device installed at a drainage port of a drum in the embodiment of the invention.

In the figure: 100. a drum; 101. a water outlet; 110. a cylinder wall; 111. a connecting wall; 120. lifting the ribs; 130. a water drainage channel; 140. a drum shaft; 200. a water collection device; 210. a bottom wall; 211. a through hole; 220. a side wall; 230. a water outlet end face; 231. a water outlet; 240. a second flow guide surface; 250. a water baffle; 260. a boss; 310. a centrifugal part; 311. a centrifugal hammer; 312. rotating the rod; 321. a seal member; 322. a connecting rod; 323. an elastic 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", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, 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," "connected," and "connected" are to be construed broadly and may be, for example, 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.

As shown in fig. 1 to 7, embodiments of the present invention provide a water collecting device 200 of a washing machine, and a washing machine including the water collecting device 200.

Specifically, the water collecting device 200 includes a bottom wall 210 and a side wall 220 surrounding the bottom wall 210, and the bottom wall 210 and the side wall 220 define a water collecting cavity. The washing machine of this embodiment further includes a drum 100, and the drum 100 is provided with a drain port 101 communicating with the water collecting chamber of the water collecting device 200.

The water outlet 101 of the drum 100 is blocked by a sealing water discharging device in the washing agent rinsing process, so that a closed water containing chamber is formed inside the drum 100, and water can be contained independently. When the water is drained, the sealed drainage device opens the drainage port 101 to communicate with the water collection chamber, and the water in the drum 100 is drained into the water collection chamber of the water collection device 200. Since the drum 100 of the embodiment can independently contain water, the problem that accumulated dirt between the inner drum and the outer drum in the traditional washing machine is difficult to clean is avoided, and the water consumption for washing is reduced.

In this embodiment, a part of the sidewall 220 of the water collecting device 200 protrudes to the outside of the water collecting cavity to form a water outlet end surface 230 forming a certain angle with the sidewall 220, and a water outlet 231 is provided on the water outlet end surface 230. The water collecting cavity is internally provided with a flow guide structure for guiding water flow to the water outlet 231, and the water outlet 231 is communicated with a drainage structure of the washing machine, so that water in the water collecting device 200 is drained out of the washing machine.

In the existing washing machine without the outer cylinder, a water collecting tray for collecting and discharging water discharged from the inner cylinder generally has a circular outline, a water outlet is arranged on the side wall of the water collecting tray and communicated with a water discharging structure, and the water discharging direction of the water outlet is close to and parallel to the radial direction of the water collecting tray. The drainage device for controlling the drainage of the inner barrel is opened by means of centrifugal force generated by high-speed rotation of the inner barrel, so that drainage water flow of the inner barrel is thrown out along the tangential direction of the wall of the inner barrel, the rotation of the inner barrel cannot be fully utilized by the circular outline to enable the water flow to be attached to the inner surface of the side wall of the water collecting tray to flow, and water flow splashing and splashing out of the water collecting tray can be caused. Meanwhile, the water flowing along the side wall needs to change the flowing direction to flow out of the water outlet, and the retention of the water flow near the water outlet can be generated, so that the drainage efficiency of the water collecting tray is influenced.

In this embodiment, the sidewall 220 of the water collecting device 200 is partially protruded to form a water outlet end surface 230 forming a certain angle with the sidewall 220, and the water outlet 231 is disposed on the water outlet end surface 230, so that the water outlet direction of the water collecting device 200 is close to the circumferential extending direction of the sidewall 220, and the water flow can flow to the water outlet end surface 230 along the inner surface of the sidewall 220, and then smoothly flows out from the water outlet 231. The arrangement of the water guide structure can guide the water flow which is about to reach the water outlet end face 230, the water flow is collected to the water outlet 231 and flows out, the splashing of the water flow is reduced, and the drainage efficiency of the water collection device 200 is improved.

In this embodiment, the flow guiding structure includes a flow guiding surface extending toward the direction of the water outlet 231, and the specific arrangement manner may include the following schemes.

The first scheme is as follows:

the water conservancy diversion structure includes that the diapire setting towards water-collecting device, and to the first water conservancy diversion face of delivery port place orientation extension, the distance between the one end that first water conservancy diversion face kept away from the delivery port and the diapire is greater than the distance between the one end and the diapire that are close to the delivery port. The water flow in the water collecting cavity flows to the water outlet under the guidance of the first flow guide surface.

Furthermore, the water outlet end face is perpendicular to the bottom wall of the water collecting device, and the water outlet is formed in one side, close to the bottom wall, of the water outlet end face. The first flow guide surface extends towards the bottom wall in an inclined mode from one side far away from the bottom wall, so that the distance between the first flow guide surface and the bottom wall is gradually reduced along the flowing direction of water flow, and the water flow is collected to the water outlet.

Scheme II:

the flow guiding structure comprises a second flow guiding surface 240 which is arranged back to the bottom wall 210 and extends towards the direction of the water outlet 231, and the distance between one end, far away from the water outlet 231, of the second flow guiding surface 240 and the bottom wall 210 is smaller than the distance between one end, close to the water outlet 231, of the second flow guiding surface and the bottom wall 210.

Further, the water outlet end face 230 is perpendicular to the bottom wall 210 of the water collecting device 200, and the water outlet 231 is disposed on a side of the water outlet end face 230 away from the bottom wall 210. The second guiding surface 240 extends obliquely from the bottom wall 210 to a direction away from the bottom wall 210, and guides water near the bottom wall 210 to the water outlet 231 in the direction away from the bottom wall 210.

The third scheme is as follows:

the diversion structure comprises a first diversion surface in the first scheme and a second diversion surface in the second scheme, and the distance between the first diversion surface and the second diversion surface is gradually reduced from one end far away from the water outlet to one end close to the water outlet, so that water flow is converged to the water outlet in the middle area of the water outlet end face.

In the above solution, by setting the flow guiding surface as the flow guiding structure, the water flow in the water collecting cavity can flow along the flow guiding surface, and then is guided to the water outlet 231 to be discharged out of the water collecting device 200. The flow guide surface is arranged to be an inclined surface extending obliquely relative to the bottom wall 210, so that the structure is simple and the flow guide effect is good.

In the preferred embodiment of this embodiment, the water outlet end face 230 forms a certain inclination angle with the vertical direction, so that the water outlet direction of the water outlet 231 is inclined downward relative to the horizontal plane, and the speed of the water flowing out of the water outlet 231 can be increased by using the gravity action, thereby further increasing the drainage rate of the water collecting device 200.

In this embodiment, the water outlet 231 is disposed on the water outlet end surface 230 on a side away from the bottom wall 210, and the flow guiding structure adopts the second flow guiding surface 240.

Further, the side wall 220 is protruded to the outside of the water collecting chamber, and one end of the side wall away from the bottom wall 210 is provided with a water baffle 250 formed to extend to the inside of the side wall 220. The water flow in the water collecting cavity is collected to the concave part on the side wall 220 and then flows out through the water outlet 231, and the arrangement of the water baffle plate 250 effectively prevents the collected water flow from overflowing from the front end of the side wall 220.

The second guiding surface 240 and the water baffle 250 are disposed opposite to each other, and the distance therebetween is gradually decreased toward the water outlet 231. The second diversion surface 240 is matched with the water baffle 250 to form a water flow channel with gradually reduced width, so that the water flow is collected to the water outlet 231 and flows out.

Since the second guiding surface 240 guides the water to the front end of the water collecting device 200, if the flow rate of the water flowing forward along the second guiding surface 240 is too high, a part of the water may not enter the water outlet 231 but overflow from the front end of the side wall 220. By providing the water guard plate 250, the overflow of the front end of the sidewall 220 is prevented, and the overflow of the water collecting device 200 is avoided.

In a further aspect of this embodiment, the water collecting device 200 has a volute structure, the side wall 220 has a projection of a spiral line shape on the plane of the bottom wall 210, and the projection of the water outlet end face 230 on the plane of the bottom wall 210 connects two ends of the spiral line shape.

Preferably, the water outlet 231 is directed in a tangential direction of the outer circumferential surface of the sidewall 220.

In the above scheme, the water collecting device 200 of the volute structure can form a working effect similar to a centrifugal pump in the rotation process of the roller 100, the flow guide effect of the inner surface of the side wall 220 on water flow is enhanced, the water flow flowing along the wall is promoted, the flowing speed of the water flow along the wall can be accelerated, the water splashing phenomenon is further prevented, and the speed of outward water drainage of the water collecting device 200 is improved.

Preferably, the side wall 220 has a projection of a logarithmic spiral on the plane of the bottom wall 210. Accordingly, as shown in fig. 3 and 4, the outline of the water collecting device 200 is also in the form of a logarithmic spiral (the dotted line in fig. 3 is a circular reference line).

In this embodiment, a circular boss 260 protruding toward the inner side of the water collecting cavity is disposed in the middle region of the bottom wall 210 of the water collecting device 200, and a certain interval is provided between the peripheral side surface of the boss 260 and the inner side of the sidewall 220 of the water collecting device 200, so that an annular space is approximately formed between the inner side of the sidewall 220 and the outer periphery of the boss 260. The water flow in the water collecting cavity flows in the annular space, so that the water flow flows along the wall more easily and flows out from the water outlet 231.

The front end of the boss 260 has a conical structure with a diameter gradually reduced along the protruding direction, and when the structure is assembled with the drum 100, the structure can be better matched with the drum bottom shape of the drum 100, and the space in the water collection device 200, in which water can flow, is compressed to the annular space between the boss 260 and the side wall 220 as far as possible.

The center of the bottom wall 210 of the water collecting device 200 is provided with a through hole 211, the drum bottom of the drum 100 is connected with a drum shaft 140 for driving the drum 100 to rotate, and when the drum 100 is assembled with the water collecting device 200, the drum shaft 140 passes through the through hole 211 and is connected with a driving device arranged behind the water collecting device 200.

In the washing machine of the present embodiment, a water drainage channel 130 is disposed on the drum 100, a water inlet end of the water drainage channel 130 is communicated with the water outlet 101 of the drum 100, and a water outlet end of the water drainage channel 130 is disposed inside the water collection chamber.

Preferably, the drainage channel 130 extends in a direction parallel to the central axis of the drum 100, and the water outlet end of the drainage channel 130 is located outside the bottom of the drum 100.

In detail, an inner wall of the drainage passage 130 on a side away from the axis of the drum 100 is disposed flush with the inside of the drum wall 110 of the drum 100. In the drainage process, the drum 100 rotates at a high speed, water in the drum 100 flows along the inner surface of the drum wall 110 under the action of centrifugal force, the inner wall of the drainage channel 130 is flush with the inner side of the drum wall 110, and the water in the drum is blocked when entering the drainage channel 130 from the drum 100, so that the water in the drum is easier to drain through the drainage channel 130.

The outlet end of the drainage channel 130 is located in the annular space formed between the boss 260 and the sidewall 220 of the water collection device 200, and directly discharges water into the annular space, thereby having a water splashing prevention effect to a certain extent. Meanwhile, the drainage channel 130 rotates synchronously with the drum 100, and can stir the air in the annular space to form an airflow flowing along the annular space, so that the water flow can be driven to flow along the circumferential direction inside the water flow attaching side wall 220 and flow out from the water outlet 231.

In a preferred embodiment of the present invention, one end of the cylinder wall 110 of the drum 100 close to the cylinder bottom has a connecting wall 111, and the connecting wall 111 has a conical structure extending from the cylinder opening to the cylinder bottom and gradually decreasing in diameter. The drain port 101 is provided in the connecting wall 111, and the water inlet end of the drain passage 130 is connected to the connecting wall 111.

The connection wall 111 has a conical structure, that is, it is inclined with respect to the vertical plane, and when the width of the drain port 101 along the radial direction of the drum 100 is constant, the connection wall 111 is disposed on the inclined surface, so that the area of the drain port 101 can be increased, which is beneficial to smoothly draining the water in the drum 100.

In this embodiment, a sealing drainage device is disposed inside the drum 100 for sealing the drainage port 101 on the connecting wall 111. The sealed drain device includes:

a centrifugal part 310 moved by a centrifugal force by the rotation of the drum 100;

the plugging part is used for plugging the water outlet 101, the plugging part is connected with the centrifugal part 310, the centrifugal part 310 moves under the action of centrifugal force, and the plugging part is driven to move along the direction vertical to the connecting wall 111 to open the water outlet 101.

In detail, the centrifugal part 310 includes a centrifugal hammer 311 and a rotation lever 312 integrally provided. The left end of the rotating rod 312 is connected with the centrifugal hammer 311, and the right end is used for connecting the plugging component to drive the plugging component to move. The middle part of the rotating rod 312 is rotatably installed in the roller 100, the centrifugal hammer 311 is driven by the centrifugal force generated by the rotation of the roller 100 to move towards the direction close to the roller wall 110, the rotating rod 312 is driven to rotate, the right end of the rotating rod 312 moves towards the direction far away from the water outlet 101, and therefore the water outlet 101 is opened by pulling the plugging component.

The plugging component specifically comprises:

a sealing member 321 which is in sealing engagement with the drain opening 101 and is used for sealing the drain opening 101;

a connecting rod 322, the upper end of which is connected with the sealing element 321, and the lower end of which is connected with the rotating rod 312, and which moves under the driving of the rotating rod 312, so as to drive the sealing element 321 to separate from the water outlet 101;

the elastic member 323 applies an elastic force to the link 322, and the holding seal member 321 closes the drain opening 101.

In a preferred embodiment of the present invention, the lifting rib 120 is installed inside the cylinder wall 110 of the drum 100, the lifting rib 120 is disposed near the bottom of the cylinder, and a hollow chamber is formed inside the lifting rib 120. The sealing drain is disposed inside the hollow chamber of the lifting rib 120. The lifting rib 120 protects the sealed drainage device, and the sealed drainage device is prevented from colliding or rubbing with clothes in the washing process, so that the sealed drainage device is prevented from losing efficacy, and water leakage occurs in the roller 100.

In the present embodiment, a control method of the washing machine is further provided, wherein during the draining and/or dewatering process of the washing machine, the drum 100 is controlled to rotate continuously, and the rotation direction of the drum 100 is the same as the water outlet direction of the water outlet 231 on the water collecting device 200.

Specifically, in this embodiment, the water outlet direction of the water outlet 231 is toward the left, that is, the water flow flows clockwise in the water collecting cavity and then flows out from the water outlet 231. Correspondingly, when the washing machine drains and/or dehydrates water, the drum 100 is controlled to rotate clockwise, and the rotation speed of the drum 100 is greater than or equal to the minimum rotation speed required by the sealed drainage device to open the drainage port 101.

In the above scheme, by controlling the rotation direction of the drum 100 during drainage and dehydration, the rotation direction is the same as the flow direction of the water flow in the water collection cavity from the inner surface of the side wall 220 to the water outlet 231, and the water flow has a movement trend toward the water outlet 231 when flowing out of the drum 100, so that the water flow is favorably adherent to flow, and the flow rate of the water flow along the inner surface of the side wall 220 can be further improved. By the above mode, the occurrence of water splashing is further avoided, and the drainage efficiency of the water collection device 200 is further improved.

In this embodiment, the water collecting device 200 of the washing machine has a volute structure, which is beneficial to guiding the water flow to flow along the inner surface of the side wall 220, and can accelerate the flow speed of the water flow and reduce the occurrence of water splashing. The water outlet 231 is disposed on the water outlet end surface 230 forming a certain angle with the sidewall 220, and the water outlet direction is close to the circumferential extension direction of the sidewall 220, so as to facilitate the water flow flowing along the sidewall 220 and smoothly flowing out from the water outlet 231. The intracavity that catchments still sets up second water conservancy diversion face 240, and rivers flow to when being close the position of delivery port 231, can follow second water conservancy diversion face 240 and flow, and then accurately guided to delivery port 231 department and flow, prevented that rivers from spilling water-collecting device 200, improved water-collecting device 200's drainage efficiency simultaneously.

A water drainage channel 130 is arranged on the drum 100 of the washing machine, the water outlet end of which extends to the inside of the water collecting cavity, and a sealed drainage device which is opened by centrifugal force to control drainage is arranged in the drum 100. During the drainage, the drum 100 rotates at a high speed to open the drainage port 101, and the drainage passage 130 extending into the inside of the water collection chamber stirs air, thereby generating an air current in the same direction as the rotation direction of the drum 100. By controlling the rotation direction of the drum 100, the flow direction of the air current is the same as the flow direction of the water current in the water collecting chamber, so that the flow rate of the water current flowing along the inner surface of the side wall 220 can be further increased, and the effect of preventing water splashing can be improved.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A water collecting device of a washing machine comprises a bottom wall and a side wall surrounding the bottom wall for a circle, wherein a water collecting cavity is formed by the bottom wall and the side wall in a surrounding mode; and a flow guide structure for guiding water flow to the water outlet is arranged in the water collecting cavity.

2. The water collecting device of a washing machine as claimed in claim 1, wherein the flow guide structure includes a first flow guide surface disposed toward the bottom wall and extending in a direction of the water outlet, and a distance between an end of the first flow guide surface far from the water outlet and the bottom wall is greater than a distance between an end of the first flow guide surface near the water outlet and the bottom wall;

3. The water collecting device of a washing machine as claimed in claim 2, wherein the water outlet end surface is arranged perpendicular to the bottom wall of the water collecting device, and the water outlet is arranged on one side of the water outlet end surface close to the bottom wall; the flow guide structure comprises a first flow guide surface, and the first flow guide surface extends towards the bottom wall from one side far away from the bottom wall in an inclined mode;

4. A water collecting device of a washing machine as claimed in any one of claims 1 to 3, wherein a portion of the side wall protruding to the outside of the water collecting chamber, an end thereof away from the bottom wall, is provided with a water baffle formed to extend to the inside of the side wall;

5. A water collecting device of a washing machine according to any one of claims 1 to 4, characterized in that the water collecting device has a volute structure, the side wall has a projection of a spiral line shape on the plane of the bottom wall, and the projection of the water outlet end surface on the plane of the bottom wall is connected with two ends of the spiral line shape;

preferably, the water outlet is directed to a tangential direction of the outer peripheral surface of the sidewall.

6. A water collecting device of a washing machine as claimed in any one of claims 1 to 5, wherein a boss protruding toward an inside of the water collecting chamber is provided at a central region of the bottom wall, and a peripheral side surface of the boss is spaced from an inside of a side wall of the water collecting device.

7. A washing machine comprising a drum, characterized by further comprising a water collecting device of the washing machine according to any one of claims 1 to 6, wherein the drum is provided with a water discharge port communicated with a water collecting chamber of the water collecting device.

8. The washing machine as claimed in claim 7, wherein the drum is provided with a water drainage channel, a water inlet end of the water drainage channel is communicated with a water outlet of the drum, and a water outlet end of the water drainage channel is arranged inside the water collecting cavity;

9. A washing machine as claimed in claim 8 wherein a sealed drain means is provided inside the drum to close off a drain opening in the connecting wall; the sealed drain device includes:

10. A control method of a washing machine as claimed in any one of claims 7 to 9, characterized in that the drum is controlled to rotate continuously during the draining and/or dehydrating process, and the rotation direction of the drum is the same as the water outlet direction of the water outlet of the water collecting device.