CN209798341U

CN209798341U - Bidirectional washing-free drum washing machine

Info

Publication number: CN209798341U
Application number: CN201920317084.XU
Authority: CN
Inventors: 刘军
Original assignee: Anhui Julong Transmission Technology Co Ltd
Current assignee: NINGGUO JULONG REDUCER Co.,Ltd.
Priority date: 2018-03-26
Filing date: 2019-03-13
Publication date: 2019-12-17
Anticipated expiration: 2029-03-13
Also published as: CN209941320U; CN208829969U; CN110359245A; CN110359230B; CN208829961U; CN209798369U; CN110359212B; CN110359210A; CN115538106A; CN110359229B; CN210886659U; CN208829966U; CN208604369U; CN209798340U; CN208604370U; CN209941321U; CN110359230A; CN208829965U; CN208829967U; CN110359229A

Abstract

The utility model provides a two-way washing exempt from to wash drum type washing machine, including a washing section of thick bamboo, urceolus and door closure, set up drainage channel on the washing section of thick bamboo, set up the wash port on the washing section of thick bamboo, the wash port is linked together with drainage channel, and drainage channel's the other end sets up throws the mouth of a river, throws the mouth of a river setting outside the washing section of thick bamboo, drainage channel's one end sets up the valve, and the door closure includes first door body and second door body, and the second door body passes through rotating device and sets up on first door body, and the lock is fixed with the urceolus to first door body, and the second door body can rotate along with the washing section of thick bamboo, and the contained angle that the both ends of drainage channel and washing section of thick bamboo central axis formed on the circular projection of washing section of thick bamboo is alpha, and the washing liquid level. The washing machine can rotate in two directions to wash clothes, effectively prevents the washing machine from leaking water from the front end and avoids secondary pollution to the clothes.

Description

Bidirectional washing-free drum washing machine

Technical Field

The utility model relates to a water conservation washing machine technical field, in particular to two-way washing exempt from to wash drum type washing machine.

Background

At present, most of the roller washing machines are of a structure with a hole on an inner cylinder, the inner cylinder is communicated with an outer cylinder, and the problems exist that water between the outer cylinder and the inner cylinder does not participate in washing and becomes waste water; secondly, over time, serious dirt and mildew are generated, secondary pollution is generated to the clothes, and the dirt in the outer cylinder enters the inner cylinder, so that the secondary pollution is caused to the clothes. If the inner barrel is made into a non-porous barrel, the water in the inner barrel is kept not to be lost in a washing state, and an ideal effect can be achieved during drainage and dehydration, so that the water-saving and environment-friendly technology of the current roller washing machine is a technical problem which is urgently needed to be overcome.

In the prior art, the patent with application number 201610374388.0 discloses a drum washing machine and a cleaning method thereof, wherein an annular isolation channel is arranged between an outer cylinder and an inner cylinder; the water inlet hole and the water outlet hole are arranged in an annular area of the outer barrel corresponding to the annular isolation channel, the water outlet hole is arranged in an annular area of the inner barrel corresponding to the annular isolation channel, and the area of the inner barrel except the annular area corresponding to the annular isolation channel is of a non-porous structure; the front end opening of the inner barrel is separated from the front end opening of the outer barrel through a separating piece. From this, the space between urceolus and the inner tube is inside to be kept apart completely, and then can not form the sewage series flow between inner tube and the urceolus, just can not adhere to in the region between urceolus and inner tube yet, pile up the dirt, but when washing machine in the process of rotating the washing, especially the in-process of two-way rotation washing, the inside water of washing section of thick bamboo appears rocking of great degree along with the inner tube for washing water easily spills from the inner tube front end, and then gets into between the urceolus, wastes water resource, influences the washing effect.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a two-way washing exempt from to wash drum type washing machine to there is the phenomenon of leaking in the washing machine among the solution prior art, can't realize sealed and can't realize two-way washing pivoted problem. In order to achieve the above purpose, the utility model adopts the following technical scheme:

A bidirectional washing-free drum washing machine comprises a washing drum, an outer drum and a door cover, wherein a drainage channel is arranged on the washing drum, a drain hole is arranged on the washing drum and is communicated with a drain passage, a water throwing port is arranged at the other end of the drain passage, the water-throwing port is arranged outside the washing drum, one end of the drainage channel is provided with a valve, the door cover comprises a first door body and a second door body, the second door body is arranged on the first door body through a rotating device, the first door body is fixedly buckled with the outer cylinder, the second door body can rotate along with the washing drum, the included angle formed by the two ends of the drainage channel and the central axis of the washing drum on the circular projection of the washing drum is alpha, the included angle formed by the two ends of the washing liquid level in the washing drum and the central axis of the washing drum on the circular projection of the washing drum is beta when the washing machine washes, and alpha is not larger than beta.

Furthermore, a fixed shaft is arranged on the first door body, a through hole is formed in the second door body, and the second door body penetrates through the fixed shaft through the through hole and is connected with the first door body in a rotating mode.

Further, a hinge is arranged on the first door body, a lock catch is arranged on the other side, opposite to the hinge, of the first door body, and the first door body and the outer barrel are opened or closed in a hinged and lock catch mode.

Further, the valve is set to be one of an elastic valve or a one-way valve.

Further, the drainage channel is arranged at least one of the front end plate, the cylinder wall and the rear end plate of the washing cylinder.

Further, the elastic valve is arranged at the water throwing opening end of the drainage channel, and the one-way valve is arranged at the drainage hole end of the drainage channel.

furthermore, the included angle of two ends of the drainage channel relative to the axis of the washing drum is set to be 90-360 degrees.

Furthermore, the front end of the cylinder wall of the washing cylinder is provided with a front end plate, and a front cover plate covers the outer part of the front end plate.

Furthermore, a semi-closed water channel groove is arranged on the inner surface of the front cover plate, and a drainage channel is formed by the water channel groove and the front end plate.

The utility model also provides a control method of the washing machine for bidirectional washing, which uses the washing machine,

The method comprises the following steps: after the clothes are placed, the door cover is closed, the washing machine is started, and a user selects one of a washing working condition, a rinsing working condition or a dehydration working condition;

Under the washing working condition, the washing barrel starts to rotate, the rotation speed of the washing barrel is not more than 80r/min, the valve on the drainage channel is in a closed state, the rotation direction of the washing barrel is the same as or opposite to the arrangement direction of the drainage channel, the water inlet valve is opened, water is injected into the washing barrel through the water inlet channel until the water reaches the liquid level height set by the washing program, and after the water injection is finished, the washing barrel continues to rotate in two directions to start washing;

Under the dehydration working condition, the washing drum rotates in a single direction along the direction opposite to the arrangement direction of the drainage channel, when the rotating speed of the washing drum is greater than 80r/min, the valve of the drainage channel is opened, and water in the washing drum flows out through the drainage channel.

The utility model provides a exempt from to wash drum type washing machine of two-way washing with door closure has realized two-way rotation washing, can effectively prevent washing machine from leaking from the front end simultaneously, has avoided the secondary pollution to the clothing, realizes automatic drainage, promotes the washing effect to valve structure is simple, and the later stage maintenance of being convenient for is changed.

The utility model provides a washing machine control method, the water in the in-process wash cylinder of washing can not flow in and wash between cylinder and the urceolus, not only saves the water consumption, has avoided the secondary pollution to the clothing, has realized the two-way rotation washing of sclausura inner tube washing machine in addition and has not leaked the effect.

drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts:

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

FIG. 2 is a schematic structural diagram of another embodiment of a washing drum according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a washing drum according to an embodiment of the present invention;

FIG. 4 is a side view of the embodiment of the present invention in which the elastic valve of the drainage channel is disposed on the wall of the washing drum;

FIG. 5 is a partial enlarged view of portion A of FIG. 4;

FIG. 6 is a side view of an embodiment of the present invention in which the elastic valve of the drainage channel is disposed on the front cover plate of the washing tub;

FIG. 7 is another side view of the front cover plate of FIG. 6;

FIG. 8 is a side view of the embodiment of the present invention in which the check valve of the drainage channel is disposed on the wall of the washing drum;

FIG. 9 is a schematic structural view of the embodiment of the present invention in which the drainage channel is disposed on the front end plate of the washing tub;

FIG. 10 is a side view of a one-way valve of a drain passage in an embodiment of the present invention disposed in a front end plate of a washing tub;

Fig. 11 is a side view of another structure of the front cover plate of fig. 10 according to the present invention;

Fig. 12 is a schematic view of a two-way rotary drum washing machine according to an embodiment of the present invention;

FIG. 13 is a schematic view of the closed state of the door cover and the outer cylinder after being assembled according to the embodiment of the present invention;

FIG. 14 is a schematic view showing an opened state of the door cover after the door cover is assembled with the outer tub in the embodiment of the present invention;

FIG. 15 is an exploded view of a door according to an embodiment of the present invention;

fig. 16 is a schematic sectional view showing an opened state of the door cover after the door cover is assembled with the outer tub in the embodiment of the present invention.

1-washing cylinder, 2-front cover plate, 3-drainage channel, 4-water throwing port, 5-reset spring, 6-metal ball, 7-sealing door, 8-rotating pin, 9-drainage hole, 10-water-stirring rib, 11-elastic valve, 12-one-way valve, 13-front end plate, 14-box, 15-outer cylinder, 16-water inlet valve, 17-water inlet pipe, 18-detergent box, 19-first outer cylinder, 20-second outer cylinder, 21-door cover, 22-water outlet, 23-water outlet pipe, 24-water channel groove, 25-water inlet channel, 211-first door body, 212-second door body, 213-first flanging, 214-second flanging, 27-rotating device, 271-gasket, 272-bearing, 28-fixed shaft, 29-through hole, 30-sealing device, 31-hinge, 32-lock catch, 33-handle

Detailed Description

it should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The descriptions of "first", "second", etc. mentioned in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

the present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

example 1

as shown in fig. 1 to 4, the present embodiment provides a washing drum for bidirectional washing, a drainage channel 3 is provided on the washing drum 1, the drainage channel 3 is tubular or flat, and the drainage channel 3 may be provided in an inward concave or outward convex shape when provided outside the washing drum 1.

Furthermore, one end of the drainage channel 3 extends into the inner wall of the washing cylinder 1, the other end of the drainage channel is arranged outside the washing cylinder 1, and the drainage channel 3 is tightly connected with the outer wall of the washing cylinder 1 and rotates together with the washing cylinder 1. The inner wall of the washing cylinder 1 is provided with a drain hole 9, the drain hole 9 penetrates through the wall of the washing cylinder 1 and is communicated with the drain passage 3, the rest positions of the washing cylinder 1 are nonporous, the other end of the drain passage 3 is provided with a water-throwing port 4, and the water-throwing port 4 is arranged outside the washing cylinder 1. Preferably, the inner wall of the washing cylinder 1 is provided with a spiral water-shifting rib 10, and the water drain hole 9 can also be arranged on the upstream surface of the water-shifting rib 10, so that water in the washing cylinder 1 can quickly enter the water drain channel 3 during dehydration, and the dehydration time is shortened. Wherein, the drainage channel 3 is closely connected on the outer wall of the washing cylinder 1, so that the drainage channel 3 is in a circular or arc structure, two ends of the drainage channel 3 are positioned on the same section taking the central shaft of the washing cylinder 1 as the center of circle, or two ends of the drainage channel 3 can also be respectively positioned on different sections taking the central shaft of the washing cylinder 1 as the center of circle, namely the drainage channel 3 can be arranged in a spiral shape. The included angle formed by the two ends of the drainage channel 3 and the central axis of the washing drum on the circular projection of the washing drum 1 is alpha, the included angle formed by the two ends of the washing liquid level in the washing drum 1 and the central axis of the washing drum on the circular projection of the washing drum 1 when the washing machine washes is beta, and alpha is not less than beta.

furthermore, the projection of the two ends of the drainage channel 3 on the same section taking the central axis of the washing drum 1 as the center of a circle and the included angle between the center of the section are 90-360 degrees.

preferably, the included angle between the projection of the two ends of the drainage channel 3 on the same section with the central axis of the washing cylinder 1 as the center of the circle and the center of the section is 100-180 degrees. The drainage channel 3 can be arranged on the washing drum 1 in at least one group, each group can be arranged to be 1-4, and the optimal arrangement is 2-3.

Furthermore, this embodiment sets up the valve that can open and shut at the one end of drainage channel 3, through the open and closed state of control valve, and then realizes the two-way rotation washing of washing section of thick bamboo.

for a clearer explanation of the working principle of the washing machine of the present invention, the following definitions are made: defining the direction of the drainage channel from the drainage hole 9 to the water throwing port 4 as the direction of the drainage channel 3;

under the washing working condition and the rinsing working condition, the rotating speed of the washing drum 1 is not more than 80r/min, and the rotating direction of the washing drum 1 is the same as or opposite to that of the drainage channel 3; under the drainage working condition and the dehydration working condition, the rotation direction of the washing cylinder 1 is opposite to that of the drainage channel 3, and along with the increase of the rotation speed of the washing cylinder, when the rotation speed of the washing cylinder 1 is more than 80r/min, a valve of the drainage channel is opened.

Example 2

As shown in fig. 3 to 5, in the present embodiment, a washing cylinder for bidirectional washing with an elastic valve is provided, a drainage channel 3 is disposed on a side wall of the washing cylinder, an elastic valve 11 is disposed at one end of a water-throwing opening 4 of the drainage channel 3 to implement bidirectional rotary washing of the washing cylinder, and the drainage channel 3 may be configured as an inwardly concave or outwardly convex structure.

Specifically, the structure of the elastic valve 11 comprises a return spring 5, a metal ball 6, a sealing door 7 and a rotating pin 8, when the washing drum is still, under the action of the return spring 5, the sealing door 7 covers the outer surface of the water throwing opening 4 of the drainage channel 3, and at the moment, the elastic valve 11 is in a closed state, and water in the drainage channel 3 is prevented from flowing out of the water throwing opening 4.

Under the washing working condition, if the rotation direction of the washing cylinder 1 is the same as that of the drainage channel 3, the elastic valve 11 is closed, and the water in the washing cylinder 1 is not drained. Similarly, under the washing condition, when the rotation speed of the washing drum 1 is below 80r/min, and the rotation direction of the washing drum 1 is opposite to the direction of the drainage channel 3, the elastic valve 11 is still in the closed state, and the water in the washing drum 1 is not drained, so that the nonporous washing drum washing machine realizes bidirectional rotation washing by the arrangement of the elastic valve 11 in the embodiment.

Under the dehydration working condition, the rotation direction of the washing cylinder 1 is opposite to that of the drainage channel 3, the washing cylinder 1 starts to reversely rotate at a high speed, when the rotation speed of the washing cylinder 1 is greater than 80r/min, the centrifugal force generated by the metal balls 6 overcomes the pulling force of the return spring 5, the sealing door 7 is opened, water in the washing cylinder 1 flows out from the drainage hole 9 to the drainage channel 3 through the water outlet 4, and the faster the washing cylinder 1 rotates, the larger the centrifugal force generated by the metal balls 6 is, the larger the opening angle of the sealing door 7 is, and the faster the water in the washing cylinder 1 flows out.

The embodiment provides a wash cylinder without holes, which realizes bidirectional rotation washing, can effectively prevent the washing machine from water leakage, avoids secondary pollution to clothes, realizes automatic drainage and has great popularization and application values.

Example 3

as shown in fig. 8, the present embodiment provides a washing drum with a one-way valve for bidirectional washing, a drainage channel 3 is provided on the sidewall of the washing drum 1, and a one-way valve 12 is provided at one end of a drainage hole 9 of the drainage channel 3 to realize bidirectional rotation washing of the washing drum. The check valve 12 is provided to be able to open from the inside to the outside. Specifically, when the washing tub 1 is stationary, the check valve 12 is in a closed state without being affected by an external force.

Under the washing working condition, the rotating speed of the washing cylinder 1 is less than 80r/min, and when the rotating direction of the washing cylinder 1 is the same as that of the drainage channel 3, water in the washing cylinder 1 is not discharged. Similarly, under the washing condition, when the rotation direction of the washing drum 1 is opposite to the drainage channel 3, because the rotation speed of the washing drum 1 is relatively small, the centrifugal force applied to the one-way valve 12 is relatively small and is still in a closed state, at this time, water in the washing drum 1 cannot flow out, and the arrangement of the one-way valve 12 in the embodiment enables the nonporous inner drum washing machine to realize bidirectional rotation washing.

Under the dehydration working condition, the rotation direction of the washing drum 1 is opposite to that of the drainage channel 3, the washing drum 1 starts to rotate reversely at a high speed, when the rotation speed of the washing drum 1 is higher than 80r/min, the one-way valve 12 is opened outwards from the inside of the washing drum under the action of a large centrifugal force, and at the moment, water in the washing drum 1 flows out from the drainage hole 9 to the drainage channel 3 and through the water outlet 4, so that the dehydration of the washing machine is realized.

The embodiment has the advantages that the one-way valve is arranged on the inner barrel, the two-way washing function of the washing machine with the non-porous inner barrel is realized, the structure of the one-way valve is simple, and later maintenance and replacement are facilitated.

Example 4

As shown in fig. 6 to 7, the present embodiment provides a washing drum with a drainage channel at the front end or the rear end of the washing drum to realize bidirectional washing, and the drainage channel 3 is arranged at the front end plate 13 or the rear end plate of the washing drum 1. When the drainage channel 3 is arranged on the front end plate 13 of the washing cylinder 1, the drainage hole 9 is arranged on the front end plate 13, the outer surface of the front end plate 13 is covered with a layer of front cover plate 2, the inner surface of the front cover plate 2 is provided with a semi-closed water channel groove 24, and the water channel groove 24 and the front end plate 13 of the washing cylinder 1 form the drainage channel 3;

similarly, an inwardly recessed semi-closed water channel groove 24 may be provided on the outer surface of the front end plate 13, the front cover plate 2 covers the outer surface of the front end plate 13, the front cover plate 2 and the semi-closed water channel groove 24 on the outer surface of the front end plate 13 form a drainage channel 3, one end of the water channel groove 24 coincides with the drainage hole 9 on the front end plate 13, the other end of the water channel groove 24 forms a water throwing port 4 of the drainage channel 3, the water throwing port 4 is provided at the edge of the front cover plate 2, an elastic valve 11 is provided at the water throwing port 4, and the structure and the operation principle of the elastic valve 11 are the same as those of embodiment 1.

under the washing working condition, when the rotating speed of the washing cylinder 1 is below 80r/min, no matter the rotating direction of the washing cylinder 1 is the same or opposite to that of the drainage channel 3, the elastic valve 11 is in a closed state, and water in the washing cylinder 1 is not discharged; under the dehydration working condition, the rotation direction of the washing drum 1 is opposite to that of the drainage channel 3, when the rotation speed of the washing drum 1 is higher than 80r/min, the elastic valve 11 is in an open state, and water in the washing drum 1 flows into the water channel groove 24 through the drainage hole 9 and flows out of the water throwing port 4 along with the rotation of the washing drum 1.

The nonporous washing drum provided by the embodiment has the advantages that the drainage channel is arranged at the front end or the rear end of the washing drum, so that the cross section area of the washing drum is effectively increased, and the volume for accommodating clothes is increased.

Example 5

as shown in fig. 9 to 11, in the washing drum for bidirectional washing provided in this embodiment, one end of the drain hole 9 of the drain passage 3 extends into the washing drum 1 through the front end plate 13. The drainage channel 3 is vertically inserted into the front end plate 13, the drainage channel 3 in the washing cylinder 1 points to the axis direction of the washing cylinder 1, a drainage hole 9 is arranged at one end of the drainage channel 3 in the washing cylinder 1, and a one-way valve 12 is arranged on the drainage hole 9. Under the washing working condition, the rotating speed of the washing cylinder 1 is less than 80r/min, and when the rotating direction of the washing cylinder 1 is the same as that of the drainage channel 3, water in the washing cylinder 1 is not discharged; when the washing cylinder 1 rotates in the direction opposite to the direction of the drainage channel 3, the centrifugal force applied to the check valve 12 is small and the check valve is still in a closed state because the rotation speed of the washing cylinder 1 is small, and at this time, the water in the washing cylinder 1 cannot flow out.

Under the dehydration working condition, the rotation direction of the washing drum 1 is opposite to that of the drainage channel 3, along with the gradual increase of the rotation speed of the washing drum 1, when the rotation speed of the washing drum 1 is higher than 80r/min, the one-way valve 12 is opened from inside to outside due to the action of larger centrifugal force, and at the moment, water in the washing drum 1 flows out from the drainage hole 9 to the drainage channel 3 and through the water outlet 4, so that the dehydration of the washing machine is realized.

In summary, the check valve 12 is opened by the centrifugal force generated when the washing tub 1 is rotated at a high speed, and thus the direction of the drain hole 9 must be directed toward the axis of the washing tub.

as some embodiments of the present invention, when the one end of the drainage hole 9 of the drainage channel 3 extends into the interior of the washing cylinder 1 through the front end plate 13, the drainage channel 3 body may be disposed on the outer surface of the front end plate 13, or may be disposed on the side wall of the washing cylinder 1 near the front end plate 13.

Example 6

As shown in fig. 12 to 16, the present embodiment provides a two-way rotating washing-free drum washing machine, the drum washing machine includes the above-mentioned washing drum capable of realizing two-way washing, and further includes an outer drum 15, a cabinet 14 and a door cover 21, the outer drum 15 and the washing drum 1 are concentrically arranged, the door cover 21 is arranged at the front ends of the washing drum 1 and the outer drum 15, the door cover 21 includes a first door body 211 and a second door body 212, the second door body 212 is arranged on the first door body 211 through a rotating device 27, and the second door body 212 can rotate relative to the first door body 211. When the door cover 21 is closed, the second door body 212 is used for blocking the washing drum 1, and when the drum washing machine operates, the second door body 212 can rotate along with the washing drum 1; the first door 211 is fixedly fastened with the outer tub 15 to ensure normal operation of the drum washing machine under the washing condition.

In this embodiment, the first door body 211 is provided with a fixed shaft 28, the second door body 212 is provided with a through hole 29, the second door body 212 penetrates the fixed shaft 28 through the through hole 29 and is rotatably connected with the first door body 211, and in order to improve the rotating effect, the through hole 29 is provided with a rotating device 27.

Preferably, the rotating device 27 includes a gasket 271 and a bearing 272, an outer ring of the bearing 272 is in interference fit with the second door body 212, an inner ring of the bearing 272 is a through hole 29, the gasket 271 is disposed between the first door body 211 and the second door body 212, at this time, when the second door body 212 rotates, the gasket 271 makes a rotating plane where the second door body 212 is located keep in the same plane, so that a deviation phenomenon does not occur, and friction or damage to the first door body 211 when the second door body 212 rotates is avoided.

Preferably, the first door body 211 and the second door body 212 are both circular, wherein the radius of the second door body 212 is smaller than that of the first door body 211, the first door body 211 and the second door body 212 are concentrically arranged, and the rotating device 27 is arranged at the center of the circle of the first door body 211 and the circle of the second door body 212.

in order to improve the rotating effect of the second door body structure, a gap with a certain distance is arranged between the first door body 211 and the second door body 212, so that when the second door body 212 rotates on the first door body 211, only the rotating device 27 generates friction force; preferably, a layer of lubricating oil is disposed between first door body 211 and second door body 212 to improve rotation of second door body 212.

Further, a sealing device 30 is arranged at the outer edge of the second door body 212, for example, a sealing rubber strip is arranged, when the door cover 21 is closed, the second door body 212 blocks the washing drum 1, the sealing rubber strip can improve the sealing performance between the second door body and the washing drum 1, and the washing water is prevented from seeping out or flowing out of the washing drum 1 when the drum washing machine operates.

Preferably, the width of the sealing device 30 gradually increases from the second door body 212 to the first door body 211, the second door body 212 and the sealing device 30 form a circular truncated cone-shaped structure together, when the door cover 21 is closed, the sealing device 30 can provide a larger contact area with the washing drum 1, and the sealing performance between the second door body 212 and the washing drum 1 is further improved.

further, a first flange 213 is arranged on the first door body 211, the first flange 213 protrudes towards one side of the washing drum 1, a second flange 214 is arranged at the front end of the outer drum 15, and the second flange 214 protrudes towards one side close to the first door body 211.

When the door cover 21 is closed, the first flange 213 is matched with the second flange 214, wherein the inner circle diameter of the first flange 213 is equal to or slightly larger than the outer circle diameter of the second flange 214, when the first door body 211 is closed, the first flange 213 is tightly matched with the second flange 214, the sealing property between the first door body 211 and the outer cylinder 15 can be increased, washing water can be prevented from seeping out of the washing machine when the washing cylinder 1 runs, and noise generated when the drum washing machine runs can be reduced.

The working principle is as follows: when the door cover 21 of the drum washing machine is closed, the first door body 211 is fixed on the outer drum 15, the second door body 212 is matched with the washing drum 1, when the washing machine operates, the second door body 212 is fixed on the first door body 211, the second door body 212 rotates along with the washing drum 1 through the rotating device 27 between the first door body 211 and the second door body 212, and the washing drum 1 is completely sealed by the second door body 212, so that the water level of washing water in the washing drum 1 can be freely adjusted, the limit that the water level of washing water in the traditional drum washing machine must be lower than the door plug is broken through, a large amount of washing water can be stored in the washing drum 1 during washing and rinsing, the defect that the drum washing machine needs to carry out multiple water drainage and rinsing in the prior art is overcome, and the washing efficiency of the drum washing machine is improved.

Further, a hinge 31 is arranged on the first door body 211, a lock catch 32 is arranged on the other side, opposite to the hinge, of the first door body 211, and the first door body 211 and the outer cylinder 15 are opened or closed in a hinged and lock catch manner; when the drum washing machine is in operation, the first door body 211 is fixed on the outer drum 15 by the latch 32, at this time, the door cover 21 of the washing machine cannot be opened, and when washing is finished, the latch 32 is opened, at this time, the door cover 21 can be opened, and the next operation is performed on the drum washing machine.

Preferably, the first door 211 is provided with a handle 33, and when a user needs to open the drum washing machine, an external force is applied to the handle 33 to open the latch 32, so that the door cover 21 is opened for the user to use.

Preferably, a water inlet device is arranged on the door cover 21, the water inlet device comprises a water inlet channel and a water inlet pipe 17, the water inlet pipe 17 is arranged at the inner top of the box body 14, one end of the water inlet pipe 17 is installed on the box body 14 through a water inlet valve 16, the other end of the water inlet pipe 17 penetrates through a detergent box 18 installed on the box body 14 and is communicated with the water inlet channel, and the water inlet channel penetrates through the door cover 21 to provide washing water for the washing machine.

Specifically, the water inlet passage 25 is disposed outside the first door body 211 or between the first door body 211 and the second door body 212.

Preferably, the water inlet channel 25 is hidden between the first door body 211 and the second door body 212, a groove is formed between the first door body 211 and the second door body 212 to accommodate the water inlet channel 25, and one side of the first door body 211 facing a user is flat, so that the appearance of the door cover 21 is attractive and elegant. One end of the water inlet channel 25 is communicated with the water inlet pipe 17; the fixed shaft 28 between the first door body 211 and the second door body 212 is set as a hollow rotating shaft; the other end of the water inlet channel 25 is communicated with the hollow channel of the fixed shaft 28. Further, the water inlet pipe 17 may be directly communicated with the fixed shaft 28, or the water inlet pipe 17 may be communicated with the fixed shaft 28 through the water inlet passage 25. The water flows from the water inlet pipe 17 through the water inlet channel 25 and further to the washing drum 1 for washing.

In order to facilitate the installation of the washing drum 1 and the outer drum 15, the outer drum 15 is provided with a first outer drum 19 and a second outer drum 20 which can be disassembled and combined, when the washing drum 1 is installed, the first outer drum 19 and the second outer drum 20 can be installed in sequence, and the production of the drum washing machine is facilitated.

A water outlet 22 is provided at the bottom of the outer tub 15, a water discharge pipe 23 is connected to the water outlet 22, and the water discharge pipe 23 extends through the casing 14.

As shown in fig. 16, in the present embodiment, the water inlet passage may be disposed at the bottom of the washing drum, and the bottom water inlet passage 25a may be disposed in the hollow shaft at the bottom. Or simultaneously, the bottom of the door cover and the bottom of the washing barrel are provided with water inlet channels, so that the water inlet fluency is ensured, and the washing efficiency is improved.

The washing-free drum washing machine with the door cover for bidirectional washing provided by the embodiment realizes that the bidirectional rotating drum washing machine does not leak water when rotating at low speed for washing, and can quickly discharge washing water when the washing drum rotates at high speed in the reverse direction. And through set up the door closure in the front end of wash tub and urceolus, realized that washing machine two-way rotation when washing, the washing water can not spill from the wash tub front end, promotes the washing effect.

Example 7

The embodiment provides a control method of a washing machine for bidirectional washing, which comprises the following steps:

After the clothes are placed, the door cover is closed, the washing machine is started, and a user selects one of a washing working condition, a rinsing working condition or a dehydration working condition;

Under the washing working condition, the washing barrel starts to rotate, the rotation speed of the washing barrel is not more than 80r/min, the valve on the drainage channel is in a closed state, the rotation direction of the washing barrel is the same as or opposite to the direction of the drainage channel 3, the water inlet valve 16 is opened, tap water is injected into the washing barrel through the water inlet channel until the tap water reaches the liquid level height set by the washing program, and after the water injection is finished, the washing barrel continuously rotates in two directions to start washing;

under the dehydration working condition, the washing drum rotates in a single direction along the direction opposite to the direction of the drainage channel 3, when the rotating speed of the washing drum is greater than 80r/min, the valve of the drainage channel is opened, and water in the washing drum flows out through the drainage channel.

Preferably, the included angle alpha formed by the two ends of the drainage channel 3 and the central axis of the washing drum on the circular projection of the washing drum 1 ranges from 90 degrees to 360 degrees, and preferably ranges from 100 degrees to 180 degrees.

Further, the rinsing working condition and the washing working condition are the same.

According to the control method of the bidirectional washing machine provided by the embodiment, water in the washing drum cannot flow into the space between the washing drum and the outer drum in the washing process, so that the water consumption is saved, secondary pollution to clothes is avoided, and the effect of no water leakage in bidirectional rotary washing of the washing machine with the non-porous inner drum is realized.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. the utility model provides a two-way washing exempts from to wash drum type washing machine which characterized in that: the washing machine comprises a washing barrel (1), an outer barrel (15) and a door cover (21), wherein a drainage channel (3) is arranged on the washing barrel (1), a drainage hole (9) is formed in the washing barrel (1), the drainage hole (9) is communicated with the drainage channel (3), a water throwing port (4) is formed in the other end of the drainage channel (3), the water throwing port is arranged outside the washing barrel (1), a valve is arranged at one end of the drainage channel (3), the door cover (21) comprises a first door body (211) and a second door body (212), the second door body (212) is arranged on the first door body (211) through a rotating device (27), the first door body (211) is fixedly buckled with the outer barrel (15), the second door body (212) can rotate along with the washing barrel (1), an included angle alpha is formed between the two ends of the drainage channel (3) and the central axis of the washing barrel on the circular projection of the washing barrel (1), when the washing machine washes, the included angle formed by the two ends of the washing liquid level in the washing drum (1) and the central axis of the washing drum (1) on the circular projection of the washing drum (1) is beta, and alpha is not less than beta.

2. a two-way washing wash-free drum washing machine according to claim 1, characterized in that: the first door body (211) is provided with a fixed shaft (28), the second door body (212) is provided with a through hole (29), and the second door body (212) penetrates through the fixed shaft (28) through the through hole (29) to be rotatably connected with the first door body (211).

3. a two-way washing wash-free drum washing machine according to claim 2, characterized in that: the hinge (31) is arranged on the first door body (211), the lock catch (32) is arranged on the other side, opposite to the hinge (31), of the first door body (211), and the first door body (211) and the outer cylinder (15) are opened or closed in a hinged and lock catch mode.

4. A two-way washing wash-free drum washing machine according to claim 1, characterized in that: the valve is arranged as one of an elastic valve (11) or a one-way valve (12).

5. A two-way washing wash-free drum washing machine according to claim 4, characterized in that: the drainage channel (3) is arranged at least one of the front end plate (13), the cylinder wall and the rear end plate of the washing cylinder (1).

6. A two-way washing wash-free drum washing machine according to claim 4, characterized in that: the elastic valve (11) is arranged at the end of the water throwing opening (4) of the drainage channel (3), and the one-way valve (12) is arranged at the end of the drainage hole (9) of the drainage channel (3).

7. A two-way washing wash-free drum washing machine according to claim 1, characterized in that: the two ends of the drainage channel (3) form an included angle of 90-360 degrees with the center of a circle on which the axis of the washing drum (1) is taken as the center of the circle.

8. A two-way washing wash-free drum washing machine according to claim 1, characterized in that: the front end of the wall of the washing drum (1) is provided with a front end plate (13), and a front cover plate (2) covers the outer part of the front end plate (13).

9. A two-way washing wash-free drum washing machine according to claim 8, characterized in that: the inner surface of the front cover plate (2) is provided with a semi-closed water channel groove (24), and the water channel groove (24) and the front end plate (13) form a drainage channel (3).