CN219218430U - Drum washing machine without outer drum - Google Patents

Abstract

The utility model belongs to the technical field of washing equipment, in particular relates to a drum washing machine without an outer drum, and aims to solve the technical problem that washing water is spilled and leaked in the existing drum washing machine without the outer drum. The drum washing machine comprises a shell, a washing drum, a water inlet assembly and a water drainage assembly; the washing drum is rotatably arranged in the shell, and the water inlet assembly is used for providing washing water for the washing drum; the drainage assembly comprises a water receiving disc, a drainage valve and a magnetic adsorption assembly, and the drainage valve is arranged on the peripheral wall of the washing drum; the water receiving disc is communicated with the drainage channel, is arranged at the bottom of the washing drum, forms an accommodating space and is positioned on a rotating path of the drainage valve; the magnetic force adsorption assembly comprises an electromagnet, and the electromagnet is configured to provide instant magnetic force and adsorb the drain valve to be opened when the drain valve passes through the accommodating space; the drain valve is configured to close when it leaves the receiving space. The drum washing machine without outer tub is used in washing clothing.

Description

Drum washing machine without outer drum

Technical Field

The utility model belongs to the technical field of washing machines, and particularly relates to a drum washing machine without an outer drum.

Background

Compared with the traditional drum washing machine, the drum washing machine without the outer drum has the advantages that the outer drum is removed, the diameter of the drum washing machine can be increased on the premise that the size of the whole drum washing machine is not changed, the volume of the drum washing machine is increased, and the washing capacity of the drum washing machine is improved, so that the drum washing machine is gradually favored by people.

The drum washing machine without the outer drum comprises a shell, a washing drum arranged in the shell, a water inlet system, a water drainage system, a motor and the like; wherein the laundry drum is used for accommodating laundry, washing water and the like; the water inlet system is used for injecting washing water into the washing drum; the drainage system comprises a plurality of drainage valves which are circumferentially arranged along the periphery of the bottom end of the washing drum and can synchronously rotate along with the washing drum. When the washing drum reaches a specific rotating speed, the drain valve is opened under the action of centrifugal force; the washing water is thrown out of the washing drum at the tail part of the washing drum. This may result in washing water being present everywhere in the cabinet, i.e., the electric devices may be damaged. Therefore, in the related art, a circle of water receiving ring can be arranged in the shell along the circumference of the drain valve to receive the spilled washing water.

However, there are drawbacks in that a water receiving ring is provided at the outer circumference of the washing tub as follows:

1) When the drain valve is positioned at the top of the washing drum and is in a drainage state, the phenomenon of washing water spillage still exists, and the risk of damaging the electric appliance exists.

2) Under the condition that the shell has the same size, after the rear end of the washing tube surrounds the water receiving ring for one circle, the layout space of the washing tube can be reduced, and then the tube diameter of the washing tube and the washing capacity of the washing machine are reduced.

Disclosure of Invention

In order to solve the problems in the prior art, namely, the risk of damaging an electric appliance caused by the phenomenon of washing water spillage during the drainage of the drum-type washing machine without the outer drum in the prior art; and, increase the layout space of the washing tub, and then increase the diameter of the washing tub and the washing capacity of the washing machine.

The embodiment of the utility model provides an outer cylinder-free drum washing machine, which comprises a machine shell, a washing cylinder, a water inlet assembly and a water drainage assembly, wherein the washing cylinder, the water inlet assembly and the water drainage assembly are arranged in the machine shell; the washing drum is rotatably arranged in the shell, and the water inlet assembly is communicated with the washing drum and is used for providing washing water for the washing drum; the drainage assembly comprises a water receiving disc, a drainage valve and a magnetic adsorption assembly, wherein the drainage valve is arranged on the peripheral wall of the washing drum and is positioned at the rear end of the washing drum; the water receiving disc is arranged at the bottom of the washing drum and is communicated with the drainage channel, the water receiving disc and the washing drum form an accommodating space, the accommodating space is positioned on a rotating path of the drainage valve, the magnetic adsorption assembly comprises an electromagnet, and the electromagnet is configured to provide instant magnetic force and adsorb the drainage valve to be opened when the drainage valve passes through the accommodating space; the drain valve is configured to close when the drain valve leaves the receiving space.

In the preferable technical scheme of the drum washing machine without the outer drum, the drain valve comprises a magnetic plate, a reset elastic piece and a pipe plug; the washing cylinder is provided with a drain hole matched with the pipe plug, and the pipe plug is arranged at the first end of the magnetic plate and positioned at one side of the magnetic plate facing the washing cylinder; the second end of the magnetic plate is rotatably connected to the washing drum, and a reset elastic piece is arranged between the magnetic plate and the washing drum.

In the preferable technical scheme of the drum washing machine without the outer drum, the second end of the magnetic plate is provided with a hinge shaft, and the magnetic plate is rotationally connected with the washing drum through the hinge shaft; the reset elastic piece is configured as a torsion spring sleeved on the hinge shaft.

In the preferable technical scheme of the drum washing machine without the outer drum, the pipe plug is in a shape of a circular table; the pipe plug comprises a large-diameter end and a small-diameter end which are oppositely arranged, and the end face of the large-diameter end is fixed on the magnetic plate.

In the preferable technical scheme of the drum washing machine without the outer drum, a plurality of drain valves are arranged on the peripheral wall of the washing drum; the drain valves are arranged at equal intervals along the circumferential direction of the washing drum.

In the preferable technical scheme of the drum washing machine without the outer drum, the water receiving tray comprises an arc section and a vertical section which are connected; the arc-shaped section is arranged below the peripheral wall of the washing drum and opposite to the drain valve, and a drain outlet communicated with the drain channel is arranged at the lowest point of the arc-shaped section; the vertical section is arranged on one side of the rear end face of the washing drum and keeps a space, and the vertical section covers part of the rear end edge of the washing drum.

In the preferable technical scheme of the drum washing machine without the outer drum, the water receiving tray comprises a first side and a second side which are opposite; when the washing drum rotates along a first direction, the drain valve enters the water receiving disc from the first side, and the electromagnet is arranged close to the first side; or when the washing drum rotates along the second direction, the drain valve enters the water receiving disc from the second side, and the electromagnet is arranged close to the second side.

In the above preferable technical solution of the drum washing machine without outer tub, the water draining stage of the washing tub includes a first stage and a second stage, and the rotational speed of the first stage is less than that of the second stage; the electromagnet is configured to generate a first magnetic force in the first stage greater than a second magnetic force generated in the second stage, and the opening angle of the drain valve in the first stage is smaller than that in the second stage.

In the above preferable technical solution of the drum washing machine without outer tub, the drain assembly further includes a drain pump and a drain pipe; the drain pipe is used for forming the drain channel, the drain pipe includes first section and second section, the one end of first section with the outlet intercommunication of water collector, the other end of first section with the inlet end intercommunication of drain pump, the play water end and the second section intercommunication of drain pump.

In the preferable technical scheme of the drum washing machine without the outer drum, the water inlet component comprises a water inlet electromagnetic valve and a water inlet pipe; one end of the water inlet pipe is communicated with the washing drum, the other end of the water inlet pipe is communicated with the water inlet electromagnetic valve, and the water inlet electromagnetic valve is externally connected with a water source.

Compared with the related art, the drum washing machine without the outer drum provided by the embodiment of the utility model has the following advantages:

the outer cylinder-free drum washing machine provided by the embodiment of the utility model is characterized in that the water receiving tray is arranged at the bottom of the washing cylinder, an accommodating space is formed between the water receiving tray and the washing cylinder, and the accommodating space is matched with the rotating path of the drain valve and is positioned on the rotating path of the drain valve. When the drain valve rotates to the upper part of the water receiving disc, the electromagnet generates instant magnetic force and adsorbs the drain valve to open so as to drain the washing water to the water receiving disc. Furthermore, when the drain valve is about to pass through the whole accommodating space, the drain valve is closed; the drain valve is opened when passing through the water receiving disc at the bottom, and the rest time is kept in a closed state.

Compared with the prior art, in which a circle of water receiving ring is arranged on the periphery of the washing drum, and the drain valve is kept in an open state when the washing drum rotates to any position during drainage, in the embodiment of the utility model, the drain valve is opened when passing through the water receiving disc at the bottom, and the drain valve is kept in a closed state in other times, so that washing water is discharged into the water receiving disc, the phenomenon of spilling and leaking of the washing water can be avoided, and the risk of damage to an electric appliance is reduced.

Furthermore, the embodiment of the utility model is only provided with the water pan at the bottom of the washing drum, and the layout space of the washing drum can be increased under the condition that the shell has the same size, so that the drum diameter of the washing drum and the washing capacity of the washing machine are increased.

In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects caused by the technical features of the embodiments of the present disclosure described above, other technical problems that can be solved by the drum washing machine without outer drum provided in the embodiments of the present disclosure, other technical features included in the technical solutions, and beneficial effects caused by the technical features will be described in further detail in the detailed description.

Drawings

Preferred embodiments of the drum type washing machine without an tub of the present utility model will be described below with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a schematic view of the overall structure of a drum washing machine without an outer tub according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of a drain valve in a closed state according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram showing an opening state of a drain valve according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of a second embodiment of the present utility model.

Reference numerals illustrate:

10-a shell;

20-frame;

30-a suspension assembly;

31-a suspension spring; 32-a shock absorber;

40-washing drum;

41-drainage holes;

a 50-drainage assembly;

51-a drain valve;

511-magnetic plate; 512-pipe plug; 513-hinge shaft;

52-a water pan; 53-electromagnet; 54-drainage pipe; 55-draining pump;

60-a water inlet assembly;

61-a water inlet electromagnetic valve; 62-water inlet pipe.

Detailed Description

As described in the background art, the drum type washing machine without outer tub in the related art has a water receiving ring provided at the outer circumference of a drain valve of a washing tub, has a washing water spilling phenomenon, and reduces a layout space of the washing tub, thereby reducing a tub diameter of the washing tub. The inventors have found that the cause of this problem is: the drainage system of the washing machine without the outer barrel comprises a plurality of drainage valves, the drainage valves are circumferentially arranged along the periphery of the bottom end of the washing barrel, and a circle of water receiving ring is circumferentially arranged in the shell along the drainage valves to receive washing water drained from the drainage valves.

However, when the drain valve is positioned at the top of the washing drum and is in a drainage state, the water receiving ring cannot collect the drained washing water, so that the phenomenon of washing water leakage is caused, and the risk of damage to an electric appliance is further caused; and under the condition that the shell has the same size, after the rear end of the washing cylinder surrounds the water receiving ring for one circle, the water receiving ring occupies part of space, so that the layout space of the washing cylinder is reduced, and the cylinder diameter of the washing cylinder and the washing capacity of the washing machine are further reduced.

According to the drum washing machine without the outer drum, the water receiving tray is arranged at the bottom of the washing drum, the water receiving tray and the washing drum are provided with the accommodating space, and the accommodating space is located on the rotating path of the drain valve. When the drain valve rotates to the upper part of the water receiving disc, the electromagnet generates instant magnetic force and adsorbs the drain valve to open so as to drain the washing water to the water receiving disc. Furthermore, when the drain valve is about to pass through the whole accommodating space, the drain valve is closed; the drain valve is opened when passing through the water receiving disc at the bottom, and the rest time is kept in a closed state.

So set up, the drain valve in this embodiment of the utility model opens while passing the water pan located at bottom, the rest time keeps the closed state; the washing water can be discharged into the water receiving disc, and the phenomenon of spilling and leaking of the washing water can be avoided, so that the risk of damage to electric appliances is reduced.

Furthermore, the embodiment of the utility model is only provided with the water pan at the bottom of the washing drum, and the layout space of the washing drum can be increased under the condition that the shell has the same size, so that the drum diameter of the washing drum and the washing capacity of the washing machine are increased.

In order to make the above objects, features and advantages of the embodiments of the present utility model more comprehensible, the technical solutions of the embodiments of the present utility model will be described clearly and completely with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the drum washing machine without outer tub provided in the embodiment of the present utility model includes a casing 10, a washing tub 40, a water inlet assembly 60, and a water outlet assembly 50, wherein the casing 10 has a built-in installation cavity, and the washing tub 40, the water inlet assembly 60, and the water outlet assembly 50 are all disposed in the installation cavity.

Specifically, the frame 20 is disposed in the mounting cavity, the frame 20 is used for mounting the laundry drum 40, and the laundry drum 40 is rotatably connected to the frame 20, and the laundry drum 40 can rotate relative to the frame 20 under the driving of the motor, so that the laundry drum 40 is rotatably disposed in the casing 10, and the laundry in the laundry drum 40 can be washed or dehydrated.

It should be noted that the frame 20 in the embodiment of the present utility model is connected to the casing 10 through the suspension assembly 30. For example, the suspension assembly 30 includes two suspension springs 31, two suspension springs 31 being disposed between the frame 20 and the top of the cabinet 10, and two dampers 32 being disposed between the frame 20 and the bottom of the cabinet 10.

Further, the water inlet assembly 60 is disposed at a rear end of the tub 40, and the water inlet assembly 60 is used for supplying washing water to the tub 40. The water inlet assembly 60 comprises a water inlet electromagnetic valve 61 and a water inlet pipe 62, wherein one end of the water inlet pipe 62 is communicated with the washing drum 40, the other end of the water inlet pipe is communicated with the water inlet electromagnetic valve 61, and the water inlet electromagnetic valve 61 is externally connected with a water source.

For example, the water inlet pipe 62 communicates with the central shaft hole of the tub 40, and when it is necessary to inject wash water into the tub 40, the water inlet solenoid valve 61 is opened, and wash water is injected into the tub 40 through the water inlet solenoid valve 61, the water inlet pipe 62, and the central shaft hole under pressure of an external water source.

The drain assembly 50 includes a drain pan 52, a drain valve 51, and a magnetic force adsorption assembly, and since the washing tub is configured as a cone-shaped tub, a front end tub diameter of the washing tub 40 is smaller than a rear end tub diameter thereof. So arranged, the wash water may collect toward the rear end of the tub 40 as the tub 40 rotates. For this, the embodiment of the present utility model provides the drain valve 51 on the outer circumferential wall of the tub 40, and the drain valve 51 is located at the rear end of the tub 40 so as to drain the washing water from the tub 40.

Further, the drain assembly 50 may include a plurality of drain valves 51, the plurality of drain valves 51 being spaced apart on an outer circumferential wall of the tub 40 along a circumferential direction of the tub 40. For example, referring to fig. 2, the drain assembly 50 according to the embodiment of the present utility model includes 4 drain valves 51, and the 4 drain valves 51 are equally spaced on the outer circumferential wall of the tub 40.

The water pan 52 in the embodiment of the present utility model is disposed at the bottom of the tub 40, and the water pan 52 is disposed near the rear end of the tub 40. The water receiving tray 52 is provided with a drain port, and communicates through a drain port drain passage. The water receiving tray 52 forms an accommodating space with the washing tub 40, the accommodating space is located on a rotation path of the drain valve 51, and when the drain valve 51 is opened to drain water, the washing water can be discharged to the water receiving tray 52 and collected by the water receiving tray 52, and discharged out of the cabinet 10 through the drain passage.

Further, the magnetic force adsorption assembly is arranged close to the water receiving disc 52, the magnetic force adsorption assembly comprises an electromagnet 53, and the electromagnet 53 can be arranged on the water receiving disc 52 and is positioned on the bottom surface of the water receiving disc 52. The electromagnet 53 can generate magnetic force after being electrified, and the magnitude of the magnetic force can be adjusted by adjusting the current flowing into the electromagnet 53. The electromagnet 53 in the embodiment of the present utility model is configured such that when the drain valve 51 passes through the receiving space, the electromagnet 53 is energized and generates an instantaneous magnetic force, and the drain valve 51 is attracted to be opened, so that drainage is performed while passing through the receiving space, and the discharged washing water is collected by the water receiving tray 52.

To prevent the washing water from spilling out, that is, to prevent the washing water from spilling out of the water receiving tray 52, the drain valve 51 may be opened when the drain valve 51 enters the upper portion of the water receiving tray 52, and the drain valve 51 may be configured to be closed when passing through the water receiving tray 52, so as to prevent the washing water from spilling out of the water receiving tray 52.

The drain valve 51 has a reset force, when the instantaneous magnetic force provided by the electromagnet 53 is greater than the reset force, the drain valve 51 is opened, and when the instantaneous magnetic force disappears, the drain valve 51 is gradually closed under the action of the reset force. In this embodiment, the installation position of the electromagnet 53, the acting time of the magnetic force, the length of the water receiving disc 52 on the rotating path of the water receiving disc 51, and the like are adjusted, so that each water receiving disc 51 is opened when entering the water receiving disc 52, the water receiving disc 52 is closed when leaving the water receiving disc 52, that is, each water receiving disc 51 is kept in an opened state when passing through the water receiving disc 52, and the rest positions are all in a closed state.

Compared with the prior art that a circle of water receiving ring is arranged on the periphery of the washing drum 40, and when the washing drum 40 rotates to any position and keeps the open state, in the embodiment of the utility model, the drain valve 51 is opened when passing through the water receiving disc 52 positioned at the bottom, and the other time keeps the closed state, so that washing water is discharged into the water receiving disc 52, the phenomenon of spilling and leaking of the washing water can be avoided, and the risk of damage to electric appliances is reduced.

Further, in the embodiment of the present utility model, the water pan 52 is only disposed at the bottom of the washing tub 40, and the layout space of the washing tub 40 can be increased under the condition that the casing 10 has the same size, so as to further increase the tub diameter of the washing tub 40 and the washing capacity of the washing machine.

As shown in fig. 3, the drain valve 51 in the embodiment of the present utility model includes a magnetic plate 511, a reset elastic member, and a pipe plug 512, wherein the magnetic plate 511 may be a flat plate, and the magnetic plate 511 may be attracted by the magnetic force of the electromagnet 53. The magnetic plate 511 includes a first end and a second end disposed opposite to each other, wherein the first end of the magnetic plate 511 is fixed with a tube stopper 512, and the tube stopper 512 is located at a side of the magnetic plate 511 facing the outer circumferential wall of the washing tub 40; the outer peripheral wall of the washing tub 40 is provided with a drain hole 41 fitted with a pipe plug 512, and the pipe plug 512 is hermetically connected to the drain hole 41.

The second end of the magnetic plate 511 is rotatably coupled to the outer circumferential wall of the tub 40, and the first end of the magnetic plate 511 is a free end capable of being rotated at a certain angle with respect to the second end. The reset elastic member is disposed between the outer circumferential wall of the washing tub 40 and the magnetic plate 511, and provides a pre-tightening force to the pipe block 512 to overcome the centrifugal force generated by the washing water during the washing process, thereby preventing the pipe block 512 from being separated from the drain hole 41.

In some embodiments, the drain valve 51 is in a closed state at a preset spin speed of the drum 40. For example, when the rotation speed of the washing drum 40 is 100 rpm or less, the pipe plug 512 of the drain valve 51 is kept in a sealed connection with the drain hole 41, so that no water is sprayed during the washing and rinsing process. Furthermore, when the magnetic force provided by the electromagnet 53 is greater than the pre-tightening force, the elastic force of the restoring elastic member is overcome, and the magnetic plate 511 of the drain valve 51 is opened by a certain angle, so as to open the drain valve 51.

On the basis of the above-described embodiment, the second end of the magnetic plate 511 in the embodiment of the present utility model is provided with a hinge shaft 513, and is rotatably coupled to the outer circumferential wall of the drum 40 by the hinge shaft 513. The restoring elastic member is a torsion spring, which is sleeved on the hinge shaft 513, and one end of the torsion spring is connected with the magnetic plate 511, and the other end of the torsion spring is connected with the outer peripheral wall of the washing drum 40, so that the generated tension force of the torsion spring acts on the magnetic plate 511 to enable the pipe plug 512 to be connected in the drain hole 41 in a sealing manner.

Further, in order to facilitate the insertion of the pipe plug 512 into the drain hole 41, the pipe plug 512 in the embodiment of the utility model is in a shape of a truncated cone, and the pipe plug 512 includes a large-diameter end and a small-diameter end which are oppositely arranged, wherein the end face of the large-diameter end is attached to and fixed with the magnetic plate 511, and the small-diameter end is usually inserted into the drain hole 41. The drain hole 41 is matched with the pipe plug 512, that is, the drain hole 41 is a circular truncated cone. Thus, the pipe plug 512 can be conveniently inserted into the drain hole 41 under the guidance of the small diameter end.

With continued reference to fig. 2, in an embodiment of the present utility model, the drip tray 52 includes an arcuate segment and a vertical segment that are connected; wherein the arc-shaped section is disposed below the outer circumferential wall of the tub 40, extends along the circumference of the tub 40 in the circumference of the tub 40, and has a certain length. Along the radial direction of the washing tub 40, one side end surface of the arc section is as close to the outer peripheral wall of the washing tub 40 as possible, and a gap is maintained between the two to avoid interference of the water receiving tray 52 with rotation of the washing tub 40.

The vertical section is provided at one side of the rear end face of the tub 40 in the front-rear direction of the tub 40, and extends upward in the radial direction of the tub 40 and has a certain length; i.e., the vertical section covers a portion of the rear end edge of the tub 40. The end face of the other side of the vertical section and the end face of the other side of the arc section are fixed, so that the vertical section and the arc section form a containing space, when the drain valve 51 rotates to the water receiving disc 52, the drain valve can be surrounded by the water receiving disc 52, and washing water is prevented from falling from the water receiving disc 52 during drainage.

Further, a drain outlet is formed in the lowest point of the arc section and is communicated with the drain channel, so that after the water receiving disc 52 collects washing water, the washing water can be discharged out of the water receiving disc 52 in an accelerating mode, and the drain effect is improved.

Based on the above embodiments, the drain assembly 50 according to the embodiment of the present utility model further includes a drain pump 55 and a drain pipe 54; wherein the drain pipe 54 is used for forming a drain passage, and the drain pipe 54 communicates with a drain port of the water receiving tray 52. Illustratively, the drain pipe 54 includes a first section and a second section, wherein one end of the first section is communicated with the drain port of the drain pan 52, the other end of the first section is communicated with the water inlet end of the drain pump 55, the water outlet end of the drain pump 55 is communicated with the second section, and the second section extends outside the cabinet 10, so that the washing water can be drained outside the cabinet 10.

With continued reference to fig. 2, the electromagnet 53 in the present embodiment is mounted in a position that is related to the direction of motor rotation during dehydration.

Specifically, the drip tray 52 includes opposing first and second sides, the first side may be defined as the right side of the drip tray 52 and the second side may be defined as the left side of the drip tray 52. When the drum 40 is rotated in the first direction, the drain valve 51 enters the drain pan 52 from the first side and leaves from the second side, so that the electromagnet 53 can be disposed adjacent to the first side. The first direction is clockwise, that is, when the washing drum 40 is rotated in the clockwise direction by the motor, the electromagnet 53 is installed on the right side of the water receiving tray 52.

Conversely, when the drum 40 rotates in the second direction, the drum 40 enters the water tray 52 from the second side and leaves from the first side, so that the electromagnet 53 can be disposed close to the second side. The second direction is a counterclockwise direction, that is, when the washing drum 40 is rotated counterclockwise by the motor, the electromagnet 53 is installed at the left side of the water receiving tray 52.

It should be noted that, in the embodiment of the present utility model, the magnetic attraction assembly may include a plurality of electromagnets 53, and the plurality of electromagnets 53 may be arranged on the bottom surface of the water pan 52 at intervals according to the requirement. Alternatively, a part of the electromagnet 53 may be disposed on the casing 10 and located on the rotation path of the drain valve 51.

For example, the drain valve 51 may enter the drip tray 52 from a first side, and a portion of the electromagnet 53 may be disposed adjacent to the first side of the drip tray and located on the housing 10. Alternatively, the drain valve 51 may enter the drip tray 52 from the second side and a portion of the electromagnet 53 may be disposed adjacent to the second side of the drip tray and on the housing 10. By the arrangement, the drain valve 51 is adsorbed and gradually opened before the drain valve 51 enters the water receiving disc 52, and the drain valve 51 can drain water through the water receiving disc 52, so that the drainage efficiency is improved.

Further, the draining stage of the washing tub 40 includes a first stage and a second stage, wherein the rotational speed of the first stage is smaller than that of the second stage, and the first stage corresponds to the initial draining stage of the washing tub 40, and the second stage corresponds to the final draining stage of the washing tub 40.

As shown in fig. 4, in the embodiment of the present utility model, the electromagnet 53 is configured to generate a first magnetic force greater than a second magnetic force generated in the first stage, and the opening angle of the drain valve 51 in the first stage is smaller than that in the second stage, that is, the opening angle of the drain valve 51 is controlled by controlling the size of the magnet of the electromagnet 53 according to different draining stages of the washing tub 40, so as to control the flow rate or flow rate of the drained water.

So set up, if need the drainage at the dehydration initial stage, avoid discharging a large amount of water and cause spilling under the high rotational speed, the centrifugal force that drain valve 51 received is little this moment, and the electro-magnet 53 can let in great electric current in order to produce great magnetic force to make drain valve 51 open a less angle, this angle is first angle, and allows proper amount of water to discharge, does not cause spilling simultaneously.

As shown in fig. 5, when the washing tub 40 is at the end of dehydration, the amount of water to be discharged is reduced, and the centrifugal force is increased, and at this time, the electromagnet 53 may be supplied with a smaller current to generate a smaller magnetic force, that is, the magnetic force applied to the drain valve 51 may be reduced, but it is required to ensure that the drain valve 51 is opened by an angle which is a second angle, the second angle being greater than the first angle, and the pipe plug 512 is completely separated from the drain hole 41. This prevents the detached washing water from being absorbed by the laundry again due to untimely draining, and continues for a certain time until the end of the dehydration.

Furthermore, in the embodiment of the present utility model, the operation of the washing drum 40 can be maintained during the draining process of the washing drum 40, so that the draining and dewatering are not stopped, the time can be saved, the draining is not interrupted, and the draining efficiency is improved.

In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The drum washing machine without the outer drum is characterized by comprising a machine shell, a washing drum, a water inlet assembly and a water drainage assembly, wherein the washing drum, the water inlet assembly and the water drainage assembly are arranged in the machine shell;

the washing drum is rotatably arranged in the shell, and the water inlet assembly is communicated with the washing drum and is used for providing washing water for the washing drum;

the drainage assembly comprises a water receiving disc, a drainage valve and a magnetic adsorption assembly, wherein the drainage valve is arranged on the peripheral wall of the washing drum and is positioned at the rear end of the washing drum;

the water receiving disc is arranged at the bottom of the washing drum and is communicated with the drainage channel, an accommodating space is formed by the water receiving disc and the washing drum, and the accommodating space is positioned on the rotating path of the drainage valve;

the magnetic force adsorption assembly comprises an electromagnet, and the electromagnet is configured to provide instant magnetic force and adsorb the drain valve to be opened when the drain valve passes through the accommodating space; the drain valve is configured to close when the drain valve leaves the receiving space.

2. The drum type washing machine without an outer tub as claimed in claim 1, wherein the drain valve comprises a magnetic plate, a reset elastic member, and a pipe stopper;

the washing cylinder is provided with a drain hole matched with the pipe plug, and the pipe plug is arranged at the first end of the magnetic plate and positioned at one side of the magnetic plate facing the washing cylinder;

the second end of the magnetic plate is rotatably connected to the washing drum, and a reset elastic piece is arranged between the magnetic plate and the washing drum.

3. The drum type washing machine without outer tub as claimed in claim 2, wherein the second end of the magnetic plate is provided with a hinge shaft through which the magnetic plate is rotatably connected with the tub;

the reset elastic piece is configured as a torsion spring sleeved on the hinge shaft.

4. The drum type washing machine without outer tub as claimed in claim 2, wherein the tube stopper is in a circular truncated cone shape;

the pipe plug comprises a large-diameter end and a small-diameter end which are oppositely arranged, and the end face of the large-diameter end is fixed on the magnetic plate.

5. The drum type washing machine without tub as claimed in any one of claims 1 to 4, wherein a plurality of the drain valves are provided on an outer circumferential wall of the tub;

the drain valves are arranged at equal intervals along the circumferential direction of the washing drum.

6. The drum type washing machine without an outer tub of claim 5, wherein the water pan comprises an arc section and a vertical section connected;

the arc-shaped section is arranged below the peripheral wall of the washing drum and opposite to the drain valve, and a drain outlet communicated with the drain channel is arranged at the lowest point of the arc-shaped section;

the vertical section is arranged on one side of the rear end face of the washing drum and keeps a space, and the vertical section covers part of the rear end edge of the washing drum.

7. The tub-less drum washing machine as claimed in claim 6, wherein the water pan includes opposite first and second sides;

when the washing drum rotates along a first direction, the drain valve enters the water receiving disc from the first side, and the electromagnet is arranged close to the first side; or alternatively, the process may be performed,

when the washing drum rotates along the second direction, the drain valve enters the water receiving disc from the second side, and the electromagnet is arranged close to the second side.

8. The drum type washing machine without an outer tub as claimed in claim 7, wherein the drain stage of the tub includes a first stage and a second stage, and a rotational speed of the first stage is less than a rotational speed of the second stage;

the electromagnet is configured to generate a first magnetic force in the first stage greater than a second magnetic force generated in the second stage, and the opening angle of the drain valve in the first stage is smaller than that in the second stage.

9. The drum type washing machine without an tub of claim 6, wherein the drain assembly further comprises a drain pump and a drain pipe;

the drain pipe is used for forming the drain channel, the drain pipe includes first section and second section, the one end of first section with the outlet intercommunication of water collector, the other end of first section with the inlet end intercommunication of drain pump, the play water end and the second section intercommunication of drain pump.

10. The drum type washing machine without an outer tub according to claim 1, wherein the water inlet assembly comprises a water inlet solenoid valve and a water inlet pipe;

one end of the water inlet pipe is communicated with the washing drum, the other end of the water inlet pipe is communicated with the water inlet electromagnetic valve, and the water inlet electromagnetic valve is externally connected with a water source.

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