CN112176653A

CN112176653A - Drum washing machine

Info

Publication number: CN112176653A
Application number: CN201910590007.6A
Authority: CN
Inventors: 赵志强; 许升; 吕佩师
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2021-01-05
Anticipated expiration: 2039-07-02
Also published as: WO2021000877A1; CN112176653B

Abstract

The invention discloses a drum washing machine, which comprises an outer drum and an inner drum sleeved in the outer drum, wherein a feeding opening is formed in the inner drum, an opening is formed in the outer drum, and the feeding opening and the opening are arranged in an overlapped mode in the axial direction of the inner drum; the inner cylinder is provided with a first door body corresponding to the closed feeding opening, and the outer cylinder is provided with a second door body for opening and closing the opening. According to the invention, the first door body is arranged, so that when the washing machine executes a washing program and the inner drum rotates, clothes always roll in the inner drum, and the clothes are prevented from being clamped in a gap between the inner drum input opening and the machine door of the washing machine; meanwhile, the opening of the outer barrel is automatically sealed by arranging the second door body at the opening of the outer barrel, so that a sealing window gasket is not arranged between the shell of the washing machine and the opening of the outer barrel, and the condition that water flows out from the opening of the outer barrel is avoided.

Description

Drum washing machine

Technical Field

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

Background

The washing machine generally refers to a washing apparatus for removing dirt from laundry using electrical and mechanical actions, in which a drum washing machine is a washing machine in which laundry, washing water, and washing powder are put into a horizontally installed inner tub, and the inner tub is rotated using a driving force of a motor, and washing is performed using a frictional action between the inner tub and the laundry. The drum washing machine is characterized in that the washing is not damaged, the washing is not intertwined, and the rubbing washing effect can be achieved.

In the existing drum washing machine, when the washing machine executes a washing program and the inner drum rotates, clothes can be clamped in a gap between the inner drum input opening and the machine door of the washing machine, especially the clothes with small volume, so that the clothes cannot be sufficiently washed, and the washing effect is poor.

The present invention has been made in view of this situation.

Disclosure of Invention

The first technical problem to be solved by the present invention is to overcome the defects of the prior art, and to provide a drum washing machine to solve the technical problem that the clothes are stuck in the gap between the inner drum input opening and the door of the washing machine.

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

a drum washing machine comprises an outer drum and an inner drum sleeved in the outer drum, wherein a feeding opening is formed in the inner drum, an opening is formed in the outer drum, and the feeding opening and the opening are arranged in an overlapped mode in the axial direction of the inner drum; the inner cylinder is provided with a first door body corresponding to the closed feeding opening, and the outer cylinder is provided with a second door body for opening and closing the opening.

Further, the first door body at least covers the whole of the throwing opening, and the first door body is in sealing contact with the inner wall of the throwing opening and/or the inner cylinder on the periphery of the throwing opening.

Further, the second door body at least covers the whole opening, and the second door body is in sealing contact with the inner wall of the opening and/or the outer cylinder on the periphery of the opening.

Further, the second door body and the first door body are arranged independently.

The drum washing machine comprises a shell, an outer drum and an inner drum are arranged in the shell, and the shell is provided with an opening for the relative opening and closing of the second door body; preferably, the opening and the open mouth are arranged coaxially with the throwing port.

Further, the space between the inner cylinder and the outer cylinder is communicated with the space between the outer cylinder and the shell through an opening when the second door body is opened.

Furthermore, a machine door for closing the opening is correspondingly arranged at the opening of the shell.

Further, the door and the second door are independent of each other.

Further, a linkage mechanism is arranged between the machine door and the second door body, and when the machine door is closed or the opening of the shell is opened, the second door body correspondingly closes or opens the opening of the outer barrel along with the machine door in an overturning manner.

Further, the inner tub forms a sealed container for containing washing water when the washing machine performs a washing process.

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

According to the invention, the first door body is arranged, so that when the washing machine executes a washing program and the inner drum rotates, clothes always roll in the inner drum, and the clothes are prevented from being clamped in a gap between the inner drum input opening and the machine door of the washing machine; meanwhile, the opening of the outer barrel is automatically sealed by arranging the second door body at the opening of the outer barrel, so that a sealing window gasket is not arranged between the shell of the washing machine and the opening of the outer barrel, and the condition that water flows out from the opening of the outer barrel is avoided.

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 drum washing machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of a drum washing machine according to another embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is an enlarged schematic view at B in fig. 2.

Description of the main elements in the figures: 1. a housing; 10. a machine door; 2. an outer cylinder; 20. a second door body; 21. a spring; 22. a first connection end; 23. a rolling device; 24. a telescopic pipe; 3. an inner barrel; 30. a first door body; 31. a second connection end; 4. a drive device; 40. a water inlet flow channel; 41. a motor shaft; 42. a communicating member; 5. a water inlet valve; 6. a detergent dispensing device; 7. a heating device; 8. draining pump; 9. lifting the ribs; 90. a housing; 91. a valve plug; 92. a weight; 93. a second through hole; 94. a water collection device; 95. 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 to illustrate it by a person skilled in the art with 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 simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically 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. 1-4, an embodiment of the present invention introduces a drum washing machine, which comprises an outer drum 2 and an inner drum 3 sleeved inside the outer drum 2, wherein a feeding opening is arranged on the inner drum 3, an opening is arranged on the outer drum 2, and the feeding opening and the opening are overlapped in the axial direction of the inner drum 3; the inner cylinder 3 is provided with a first door 30 which correspondingly closes the feeding opening, and the outer cylinder 2 is provided with a second door 20 which opens and closes the opening.

According to the invention, the first door body 30 is arranged, so that when the washing machine executes a washing program and the inner drum 3 rotates, clothes always roll in the inner drum 3, and the clothes are prevented from being clamped in a gap between the input opening of the inner drum 3 and the machine door 10 of the washing machine; meanwhile, the opening of the outer barrel 2 is automatically closed by arranging the second door body 20 at the opening of the outer barrel 2, so that a sealing window gasket is not arranged between the outer shell 1 of the washing machine and the opening of the outer barrel 2, and the condition that water flows out from the opening of the outer barrel 2 is avoided. In addition, the first door 30 ensures that the inner part of the inner barrel 3 is in a closed state when the washing machine executes a washing program, so that the washing water in the inner barrel 3 is prevented from being splashed onto the inner wall of the outer barrel 2 through the feeding port, and the aim of cleaning-free of the washing machine is fulfilled.

Wherein, the throwing opening and the opening are overlapped in the axial direction of the inner cylinder 3, namely the throwing opening is arranged at the first side of the inner cylinder 3 in the axial direction, the axes of the outer cylinder 2 and the inner cylinder 3 extend in the same direction, and the opening is arranged at one side of the outer cylinder 2 in the axial direction and close to the first side of the inner cylinder 3; specifically, urceolus 2 and inner tube 3 all include that the axis is the cylindric lateral wall that extends around and the diapire of closed side wall rear end, uncovered locating urceolus 2 front side, put in the mouth and locate inner tube 3 front side, inner tube 3 can be rotatory around self axis, 2 section of thick bamboo walls of urceolus bottom is equipped with the outlet, second door body 20 installs on inner tube 3, first door body 30 installs on urceolus 2, second door body 20 and first door body 30 are all outwards overturn and open, correspond the upset and close.

Referring to fig. 1-4, in the present embodiment, the first door 30 covers at least the entire input opening, and the first door 30 is in sealing contact with the inner wall of the input opening and/or the inner cylinder 3 at the periphery of the input opening. Namely, when the first door 30 is closed, the dispensing opening is completely sealed.

The invention prevents the gas and liquid in the inner cylinder 3 from flowing to the outside of the inner cylinder 3 from the feeding opening through the arrangement, and further prevents the washing water in the inner cylinder 3 from sputtering on the inner wall of the outer cylinder 2 from the feeding opening.

Referring to fig. 1 to 4, in the present embodiment, the second door 20 covers at least the whole of the opening, and the second door 20 is in sealing contact with the inner wall of the opening and/or the outer tub 2 at the periphery of the opening. I.e., the second door body 20 closes to completely seal the opening.

The invention prevents the gas and liquid in the outer cylinder 2 from flowing to the outside of the outer cylinder 2 from the opening through the arrangement, and further prevents the washing water in the outer cylinder 2 from flowing to the outside of the outer cylinder 2 to influence the use of the washing machine or the use of external equipment of the washing machine.

Referring to fig. 1-4, in the present embodiment, the second door 20 and the first door 30 are independent from each other, that is, when a user takes and puts clothes, the second door 20 is opened first and then the first door 30 is opened, and when washing clothes, the first door 30 is closed first and then the second door 20 is closed.

According to the invention, the first door body 30 and the second door body 20 are independent from each other, so that the first door body 30 and the second door body 20 are not influenced with each other, and different requirements of users are met.

Referring to fig. 1-4, in the present embodiment, the drum washing machine includes a housing 1, an outer drum 2 and an inner drum 3 are installed inside the housing 1, and the housing 1 is provided with an opening for opening and closing the second door 20; preferably, the opening and the open mouth are arranged coaxially with the throwing port.

The invention optimizes the appearance of the washing machine through the arrangement.

Specifically, shell 1 includes front panel, top deck board, backplate, bottom plate and curb plate to inject and hold the chamber, install the footing on the bottom plate, with the support washing machine, this is not repeated, and the opening is located shell 1 front side.

Referring to fig. 1 to 4, in the present embodiment, the space between the inner tub 3 and the outer tub 2 is communicated with the space between the outer tub 2 and the outer casing 1 through the opening when the second door 20 is opened, that is, the opening and the opening are not provided with the sealing structure for sealing the gap between the opening and the opening in the general drum washing machine.

Referring to fig. 1-4, in the present embodiment, a door 10 for closing the opening is correspondingly installed at the opening of the housing 1.

The invention further optimizes the appearance of the washing machine through the arrangement.

Specifically, the door 10 is mounted on the housing 1, and the door 10 is opened by being turned outward and closed by being turned correspondingly.

Referring to fig. 1 to 4, in the present embodiment, the machine door 10 and the second door 20 are independent from each other, that is, when a user takes and puts clothes, the machine door 10 is opened first, and then the second door 20 is opened, and when washing the clothes, the second door 20 is closed first, and then the machine door 10 is closed.

The invention makes the machine door 10 and the second door body 20 not mutually influenced by the arrangement, so as to adapt to different requirements of users.

In this embodiment, a linkage mechanism is disposed between the machine door 10 and the second door 20, when the machine door 10 is closed or the opening of the casing 1 is opened, the second door 20 turns over along with the machine door 10 to correspondingly close or open the opening of the outer tub 2, that is, when a user takes or puts clothes, the second door 20 is opened while the machine door 10 is opened, and when the clothes are washed, the machine door 10 is closed while the second door 20 is closed.

According to the invention, the linkage mechanism is arranged between the machine door 10 and the second door body 20, so that the machine door 10 and the second door body 20 are opened and closed simultaneously, and the operation of putting and taking clothes by a user is simplified.

Specifically, after the door 10 is closed, the door 10 is fixed on the housing 1, and the door 10 has a decorative effect.

Referring to fig. 1 to 4, in the present embodiment, the inner tub 3 is a sealed container for containing washing water when the washing machine performs a washing process. In some embodiments, the drum 3 is an inner drum of a general drum washing machine.

Referring to fig. 2-4, in the present embodiment, a ring of shock absorbing members is disposed between the periphery of the door 10 and the opening of the housing 1. Wherein, the damper is made of rubber.

According to the invention, through the arrangement, the noise generated when the machine door 10 is closed is reduced, and meanwhile, the sealing effect of the closed opening of the machine door 10 is improved.

Referring to fig. 2-4, in this embodiment, a lifting rib 9 is disposed on a side wall of the inner cylinder 3, an accommodating cavity is disposed inside the lifting rib 9, a first through hole communicated with an inner space of the inner cylinder 3 and a second through hole 93 communicated with a gap between the inner cylinder 3 and the outer cylinder 2 are disposed on a wall surface of the accommodating cavity, and a control structure for controlling opening and closing of the first through hole and/or the second through hole 93 is disposed inside the accommodating cavity.

The invention realizes the discharge of the liquid in the inner barrel 3 when the inner barrel 3 is a non-porous inner barrel 3 and the first door body 30 is closed through the arrangement, wherein when the first through hole and/or the second through hole 93 is closed and the first door body 30 is closed, the inner part of the inner barrel 3 is in a completely closed state, so that the washing water in the inner barrel 3 is prevented from sputtering on the inner wall of the outer barrel 2, when the first through hole and the second through hole 93 are opened and the first door body 30 is closed, the inner part of the inner barrel 3 is in a semi-closed state, the washing water in the inner barrel 3 is discharged to a gap between the inner barrel 3 and the outer barrel 2, and simultaneously the washing water in the inner barrel 3 is prevented from sputtering on the inner wall of the outer barrel 2 through the feeding port, when the first through hole and the second through hole 93 are opened and the first door body 30 is opened, so that a user can clean the inner barrel 3, the outer barrel 2, when the first through hole and/, the inner part of the inner drum 3 is in a half-open state, and a user can take and put clothes at the moment.

Specifically, first through-hole is densely covered in holding the chamber and being close to the inside one side of inner tube 3, and second through-hole 93 is located and is held the chamber and be close to the one side in the space between inner tube 3 and the urceolus 2, and the quantity of second through-hole 93 is less, and the opening and closing of control structure control second through-hole 93 promotes muscle 9 including surrounding inner tube 3 axis, evenly distributed's a plurality ofly, still includes along inner tube 3 axial, evenly distributed's a plurality ofly.

Referring to fig. 2-4, in this embodiment, the lifting rib 9 includes a housing 90, first through holes are disposed on two opposite sides of the housing 90 along a direction in which water flows through, a cavity is formed in the housing 90, a second through hole 93 is disposed on a bottom wall of the cavity, the second through hole 93 is connected to a drainage device, a control structure which can be controlled to open and close is disposed in the cavity, and the second through hole 93 is opened when the inner cylinder 3 rotates at a high speed in a dehydration process by the control structure to drain the washing water in the inner cylinder 3.

Referring to fig. 1-4, in the present embodiment, the lifting rib 9 protrudes from the inner side surface of the sidewall of the inner cylinder 3. In some embodiments, the lifting rib 9 is disposed to protrude from the outer side of the sidewall of the inner cylinder 3.

According to the invention, in the working process of the drum washing machine, the inner drum 3 drives the lifting ribs 9 to rotate, and the lifting ribs 9 rotate along with the inner wall of the inner drum 3, so that the clothes in the inner drum 3 are lifted upwards, and the clothes are turned over and washed.

Referring to fig. 2-4, in the present embodiment, the control structure includes a valve plug 91, an elastic member 95 and a lever, the valve plug 91 is correspondingly installed at the second through hole 93 to close the second through hole 93, the elastic member 95 supports the valve plug 91 to close the second through hole 93 and can elastically deform the second through hole 93 in the axial direction, one end of the lever is hinged to the valve plug 91, and the other end of the lever opposite to the valve plug is connected to a weight 92.

According to the invention, the opening and closing of the second through hole 93 are controlled through the arrangement, wherein when the inner cylinder 3 is static or rotates at a low speed, the elastic member 95 cannot be elastically deformed by the force borne by the heavy hammer 92, the second through hole 93 is sealed by the valve plug 91, when the inner cylinder 3 rotates, the elastic member 95 is elastically deformed by the force borne by the heavy hammer 92 and drives the valve plug 91, so that the second through hole 93 is opened, when the inner cylinder 3 is static again or rotates at a low speed, the elastic member 95 returns to the initial state, and the valve plug 91 seals the second through hole 93.

The first through hole is normally open, and the distance between the weight 92 and the lever fulcrum is relatively large, so as to drive the valve plug 91.

Referring to fig. 2-4, in this embodiment, the control structure includes a valve plug 91 and a weight 92 for closing the second through hole 93, the valve plug 91 can move up and down relative to the second through hole 93, one end of the weight 92 extends outward to form a lever, the lever is hinged to the valve plug 91, the up and down movement of the weight 92 causes the lever to drive the valve plug 91 to move up and down around a fulcrum to automatically control the opening and closing of the second through hole 93, an elastic member 95 is disposed on the valve plug 91, when the inner cylinder does not work or rotates at a low speed, the valve plug 91 closes the second through hole 93 under the action of the elastic member 95, when the inner cylinder 3 rotates at a high speed during dehydration, the weight 92 moves radially outward along the inner cylinder 3 under the action of centrifugal force, one end of the lever connected to the weight 92 moves downward, the other end of the lever moves upward to drive the valve plug 91 to move upward, the second through hole 93 is opened, the washing, the outer cylinder 2 is fixed, a water collecting device 94 is arranged on the outer cylinder 2 at a position corresponding to the second through hole 93, the water collecting device 94 is communicated with a water discharging pipe, a water discharging pump 8 is arranged on the water discharging pipe, and the water in the inner cylinder 3 is collected by the water collecting device 94 and is discharged under the action of the water discharging pump 8.

Referring to fig. 2-4, in the present embodiment, the valve plug 91 is a cylindrical structure having an axis coaxial with the second through hole 93, the valve plug 91 includes a closed section for closing the second through hole 93 and a connecting section having an outer diameter smaller than that of the closed section, the elastic member 95 supports a step surface between the connecting section and the closed section, and the lever is hinged to an end of the connecting section away from the closed section.

Referring to fig. 2-4, in the present embodiment, the elastic member 95 is a cylindrical structure coaxial with the valve plug 91, the elastic member 95 is sleeved outside the closing section, a first end of the elastic member is supported on a step surface between the connecting section and the closing section, and an opposite end surface of the elastic member is supported and fixed inside the accommodating cavity.

Referring to fig. 2-4, in the embodiment, the drum washing machine includes a driving device 4, the bottom of the inner drum 3 is in transmission connection with the driving device 4 through a motor shaft 41, and a water inlet channel 40 is formed in the motor shaft 41 in a hollow manner.

Referring to fig. 2-4, in the embodiment, the water inlet channel 40 is connected to a water inlet device, which includes a water inlet valve 5 for automatically controlling water inlet of the inner barrel 3, a detergent dispenser 6, and a heater 7, and delivers water into the inner barrel 3.

Referring to fig. 2-4, in the embodiment, one end of the motor shaft 41 extends to the outside of the driving device 4, the motor shaft 41 and the extending end are rotatably mounted on the communicating member 42 through a bearing, the communicating member 42 has a communicating channel therein, the communicating channel communicates with the water inlet channel 40 and the water inlet device, and the detergent feeding device 6 and the heating device 7 are sequentially connected between the communicating channel and the water inlet valve 5.

Referring to fig. 2-4, in this embodiment, the outer cylinder 2 is installed in the housing 1 through a damping device, one end of the outer cylinder 2 is open, and the other end is closed, the inner cylinder 3 is sleeved inside the outer cylinder 2, the input opening of the inner cylinder 3 is in the same direction as the open opening of the outer cylinder 2, one end of the motor shaft 41 passes through the inner cylinder 3, and the other end is rotatably supported on the bottom wall of the outer cylinder 2, the outer cylinder 2 plays a role in supporting and damping the inner cylinder 3, so as to ensure the working stability of the washing machine, the second door 20 is installed at the open opening of the outer cylinder 2, the first door 30 is installed at the input opening of the inner cylinder 3, the second door 20 is connected with the open opening of.

Referring to fig. 2-4, in the present embodiment, the damping device includes a damping spring and a damper, the damping spring is mounted on the side wall of the top of the outer cylinder 2, one end of the damping spring is fixed on the outer casing 1, the other end of the damping spring is hooked on the side wall of the outer top, and the damper is mounted in the middle of the side wall of the bottom of the supporting seat.

Referring to fig. 2-4, in the embodiment, a linkage mechanism is arranged between the second door body 20 and the first door body 30, when the second door body 20 is pulled to turn outwards to open the opening of the outer cylinder 2, the first door body 30 turns outwards to open along with the second door body 20, and when the second door body 20 is pushed to close the opening of the outer cylinder 2, the first door body 30 turns over along with the second door body 20 to correspondingly close the input opening of the inner cylinder 3. After the second door body 20 and the first door body 30 are closed, the first door body 30 is hermetically connected with the inner cylinder 3, and is fixedly and hermetically connected, the first door body 30 rotates along with the inner cylinder 3, the second door body 20 is fixed on the outer cylinder 2, and the first door body 30 can rotate relative to the second door body 20. After the second door body 20 and the first door body 30 are closed, the second door body 20 and the first door body 30 are fixedly connected, and the first door body 30 and the periphery of the putting-in opening of the inner barrel 3 are in relatively rotatable sealing connection. The second door body 20 and the first door body 30 are coaxially and fixedly connected. The periphery of the first door body 30 extends towards the inclined flaring of the second door body 20, the periphery of the first door body 30 is abutted against the putting-in opening of the inner cylinder 3, at least one part of the first door body 30 is positioned in the putting-in opening, the periphery of the first door body 30 is hermetically connected with the putting-in opening of the inner cylinder 3, and water in the inner cylinder 3 is prevented from flowing out. The periphery of the first door 30 extends outwards along the radial direction, one side of the first door 30 is attached to the opening of the outer cylinder 2, and a buffer is arranged between the first door 30 and the outer cylinder 2 to prevent large impact on the inner cylinder 3 when the door is closed. The linkage mechanism comprises a first connecting end 22 and a second connecting end 31 which are matched and spliced with each other, the first connecting end 22 protrudes and extends from the center of the second door body 20 to one side of the first door body 30, the second connecting end 31 protrudes and extends from the center of the first door body 30 to one side of the second door body 20, and the first connecting end 22 and the second connecting end 31 can be connected in a relatively rotating mode. A rolling device 23 is arranged between the first connecting end 22 and the second connecting end 31, the rolling device 23 and the putting-in port are coaxially arranged, preferably, the rolling device 23 is a bearing, an inner ring of the bearing is sleeved on the first connecting end 22, and the second connecting end 31 is sleeved on an outer ring of the bearing; or, the bearing inner ring is sleeved on the second connecting end 31, and the first connecting end 22 is sleeved on the bearing outer ring. The first connecting end 22 is a cylinder, the second connecting end 31 is a groove with an opening, the opening faces the second door body 20, the cylinder is correspondingly inserted into the groove from the opening, a shaft shoulder is arranged at one end of the cylinder close to the door body, a rolling device 23 is sleeved on the cylinder, the shaft shoulder limits the rolling device 23, and the extension length of the groove is smaller than that of the cylinder; or, the first connection end 22 is a groove with an opening facing the first door 30, and the second connection end 31 is a cylinder, and the cylinder is inserted into the groove from the opening. The first door body 30 comprises a front plate and a rear plate which are connected in parallel, the rear plate can generate front and rear displacement relative to the front plate, the diameter of the front plate is larger than that of the rear plate, the front plate correspondingly seals an opening of the outer barrel 2, the rear plate is arranged between the front plate and the second door body 20, a first connecting end 22 is arranged on one side of the front plate facing the second door body 20, a second connecting end 31 connected with the first connecting end 22 in a matched mode is arranged on the first door body 30, and a rolling device 23 is arranged between the first connecting end 22 and the second connecting end 31, so that the second door body 20 drives the first door body 30 to rotate. A certain gap is arranged between the front plate and the rear plate, a spring 21 extending along the axial direction of the putting-in opening is arranged between the front plate and the rear plate, and two ends of the spring 21 are respectively connected with the front plate and the rear plate. The peripheries of the front plate and the rear plate are provided with a telescopic pipe 24 which can generate telescopic deformation, and two ends of the telescopic pipe 24 are respectively connected with the peripheries of the front plate and the rear plate in a sealing way.

Referring to fig. 2-4, in the present embodiment, a ring of buffer members is disposed between the periphery of the second door 20 and the opening of the outer cylinder 2, and a ring of sealing members is disposed between the periphery of the first door 30 and the opening of the inner cylinder 3.

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 drum washing machine comprises an outer drum and an inner drum sleeved in the outer drum, wherein a feeding opening is formed in the inner drum, an opening is formed in the outer drum, and the feeding opening and the opening are arranged in an overlapped mode in the axial direction of the inner drum; the method is characterized in that: the inner cylinder is provided with a first door body corresponding to the closed feeding opening, and the outer cylinder is provided with a second door body for opening and closing the opening.

2. A drum washing machine according to claim 1, characterized in that: the first door body at least covers the whole of the throwing opening, and the first door body is in sealing contact with the inner wall of the throwing opening and/or the inner cylinder at the periphery of the throwing opening.

3. A drum washing machine according to claim 1, characterized in that: the second door body at least covers the whole opening, and the second door body is in sealing contact with the inner wall of the opening and/or the outer cylinder on the periphery of the opening.

4. A drum washing machine according to claim 1, characterized in that: the second door body and the first door body are arranged independently.

5. A drum washing machine according to any one of claims 1-4, characterized in that: the drum washing machine comprises a shell, the outer drum and the inner drum are arranged in the shell, and the shell is provided with an opening for the relative opening and closing of the second door body;

preferably, the opening and the open mouth are arranged coaxially with the throwing port.

6. A drum washing machine according to claim 5, characterized in that: the space between the inner cylinder and the outer cylinder is communicated with the space between the outer cylinder and the shell through an opening when the second door body is opened.

7. A drum washing machine according to claim 5, characterized in that: the opening of the shell is correspondingly provided with a machine door for closing the opening.

8. A drum washing machine according to claim 7, characterized in that: the door and the second door are independent of each other.

9. A drum washing machine according to claim 7, characterized in that: and a linkage mechanism is arranged between the machine door and the second door body, and when the machine door is closed or the opening of the shell is opened, the second door body correspondingly closes or opens the opening of the outer barrel along with the machine door in a turnover mode.

10. A drum washing machine according to any one of claims 1-4, characterized in that: the inner tub forms a sealed container for containing washing water when the washing machine performs a washing process.