Door body assembly and washing machine

Abstract

The utility model provides a door body subassembly and washing machine, this door body subassembly is used for washing machine, its characterized in that, this door body subassembly includes: inner door and outer door, inner door and outer door are opposite and set up, and the relative movement space is kept apart between inner door and outer door, linkage device, linkage device sets up in relative movement space to and includes first linkage piece and second linkage piece, first linkage piece sets up in the one side of outer door towards inner door, second linkage piece sets up in the one side of inner door towards outer door, first linkage piece is connected in second linkage piece and can move relative to second linkage piece, wherein, outer door is configured as when being subjected to external force, can move relative to inner door and can drive inner door to move, to make inner door switch between open state and closed state. Therefore, can open inner door and outer door simultaneously through one operation, has improved convenience.

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and in particular to a door assembly and a washing machine. Background Technology

[0002] When a washing machine is washing, especially during the spin-drying process, the inner and outer tubs of the machine undergo significant motion relative to the machine's casing, such as rotation or shaking. In these situations, to ensure the outer tub is sealed and prevent water leakage, a soft, rubber-made seal is typically used to connect the outer tub to the casing.

[0003] In actual use, seals made of rubber often accumulate a lot of dirt and are difficult to clean. While existing washing machines use a door-to-tub design, allowing the door and tub to move together relative to the casing during operation, thus eliminating the need for seals and avoiding the aforementioned dirt problem, this design still presents a safety hazard as the door's movement may cause contact with the operator located near the casing.

[0004] Furthermore, to overcome the aforementioned safety hazards, existing washing machines employ a combination of an inner and outer door. The inner door moves with the inner drum, while the outer door is connected to the machine body and acts as a partition between the operator and the inner door. This, from a safety perspective, avoids the possibility of contact between the moving parts of the washing machine and the operator. However, this combination of inner and outer doors is inconvenient to operate. When taking out clothes, the operator must first open the outer door before opening the inner door, or vice versa.

[0005] Therefore, there is a market demand for door components and washing machines that can open the inner and outer doors simultaneously with a single operation, thereby improving convenience. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a door assembly and a washing machine that can open the inner and outer doors simultaneously in one operation.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] A door assembly for a washing machine, the door assembly comprising:

[0009] The inner and outer doors are arranged opposite each other, with a space between them for relative movement.

[0010] A linkage device is set in a relative motion space and includes a first linkage member and a second linkage member. The first linkage member is set on the side of the outer door facing the inner door, and the second linkage member is set on the side of the inner door facing the outer door. The first linkage member is connected to the second linkage member and can move relative to the second linkage member.

[0011] The outer door is configured to move relative to the inner door and drive the inner door to move when subjected to external force, so that the inner door switches between an open state and a closed state.

[0012] In this solution, through the connection between the first linkage member located on the side of the outer door facing the inner door and the second linkage member located on the side of the inner door facing the outer door, the outer door moves relative to the inner door when subjected to external force. The aforementioned movement of the outer door further drives the inner door to move synchronously by utilizing the first and second linkage members, so that the inner door can switch accordingly as the outer door switches between the open and closed states. That is, when the outer door is opened, the inner door is opened together, and when the outer door is closed, the inner door is closed together, improving convenience.

[0013] Preferably, the first linkage component includes: a linkage body, the first end of which is connected to the second linkage component, and the linkage body is movable relative to the second linkage component;

[0014] The elastic element is located between the outer door side facing the inner door and the second end of the linkage body;

[0015] When the inner door is closed, the elastic element is in a pre-compression state.

[0016] In this design, the first linkage component includes a linkage body, with a first end connected to a second linkage component, and the linkage body is movable relative to the second linkage component. Additionally, an elastic element is provided at the second end of the linkage body. This elastic element, through a flexible connection, reduces the connection stiffness between the inner and outer doors, thus reducing vibration transmission between them. Furthermore, the elastic element is positioned between the second end and the outer door. When the inner door is closed, the elastic element, pressed against the outer door and under pre-compression, pushes the linkage body towards the inner door. The linkage body further directs the force to the second linkage component connected to it, thereby causing the second linkage component to push against the inner door, ensuring that the inner door fully fits and seals the internal space of the washing machine, thus guaranteeing airtightness.

[0017] Preferably, the second linkage has a sliding cavity;

[0018] The linkage body includes a sliding block, which is held in a sliding cavity and is movable within the sliding cavity;

[0019] The sliding cavity has an opening facing the outer door, and the elastic element connects the sliding block to the inner door through the opening.

[0020] In this design, the second linkage component has a sliding cavity containing a sliding block from the linkage body. The sliding block is movable within the sliding cavity, and an elastic element connects the sliding block to the inner door through an opening in the sliding cavity facing the outer door. Thus, the sliding block can slide within the sliding cavity, providing ample freedom and damping for the relative movement between the inner and outer doors. Specifically, when both the inner and outer doors are closed, the inner door can vary its distance from the outer door, and it can also translate relative to the outer door by offsetting their axes along the thickness direction, allowing for movement in all directions.

[0021] Preferably, the linkage body further includes a pre-tightening part, the sliding block extends toward the outer door and passes through the opening of the pre-tightening part, the elastic element is connected to the pre-tightening part, and when the inner door is in the closed state, the pre-tightening part pre-presses the elastic element toward the outer door.

[0022] In this design, the sliding block extends towards the outer door with a pre-tightening portion that passes through the opening, thereby further pushing the elastic element towards the outer door. This allows the elastic element to more fully enter the pre-compression state and accumulate elastic potential energy. Consequently, the elastic element, which is pressed against the outer door and is in the pre-compression state, pushes the linkage body towards the inner door more fully. The linkage body and the second linkage element connected to it cooperate, causing the second linkage element to push the inner door, thus ensuring that the inner door fits snugly and seals the internal space of the washing machine, further guaranteeing airtightness.

[0023] Preferably, the linkage body further includes a first connecting plate, which is disposed on the side of the pre-tightening part facing the elastic element. The first connecting plate is coaxially disposed with the pre-tightening part, and the elastic element is disposed between the side of the outer door facing the inner door and the first connecting plate.

[0024] In particular, along the direction perpendicular to the axis of the pre-tightening part, the cross-sectional dimension of the first connecting plate is larger than that of the pre-tightening part.

[0025] In this design, the cross-sectional dimension of the first connecting plate is larger than that of the pre-tightening part, ensuring that the first connecting plate has a sufficiently large contact area to contact the elastic element, and ensuring that the pre-tightening part pushes the elastic element towards the outer door more effectively.

[0026] Preferably, the linkage body further includes a second connecting plate, which is attached to the end face of the outer door facing the inner door, and an elastic element is connected between the first connecting plate and the second connecting plate.

[0027] In this design, the second connecting plate is attached to the end face of the outer door facing the inner door, and the elastic element is connected between the first connecting plate and the second connecting plate, thereby providing a designated installation position for the elastic element and making the installation process more convenient.

[0028] Preferably, the first connecting plate and the second connecting plate are arranged in parallel, and along the direction perpendicular to the axis of the pre-tightening part, the cross-sectional dimensions of the first connecting plate and the second connecting plate are larger than the cross-sectional dimensions of the elastic element.

[0029] In this design, the first connecting plate and the second connecting plate are arranged in parallel, thereby ensuring that the elastic element compressed between the first connecting plate and the second connecting plate is subjected to balanced force, avoiding the skewing problem that may be caused by the force at a specific location being greater than that at other locations. In addition, the cross-sectional dimensions of the first connecting plate and the second connecting plate are larger than the cross-sectional dimensions of the pre-tightening part, thereby ensuring that the elastic element can be held between the first connecting plate and the second connecting plate, avoiding the uncertainty caused by the elastic element overflowing from the edge of the first connecting plate or the second connecting plate after being subjected to force, and thus affecting the force surface and angle.

[0030] Preferably, a protruding limiting part is provided on the inner wall of the sliding cavity, which restricts the sliding block in the sliding cavity.

[0031] In this design, a protruding limiting part is provided on the inner wall of the sliding cavity. The limiting part restricts the sliding block in the sliding cavity, thereby ensuring that the sliding block can always be contained in the sliding cavity and avoiding structural failure caused by the sliding block accidentally coming out of the sliding cavity.

[0032] Preferably, the door assembly further includes:

[0033] A hinge is provided at the edge of the outer door and the inner door and connects the outer door and the inner door. A linkage device is provided on the side opposite to the hinge.

[0034] In this design, the hinges are located at the edges of the outer and inner doors, and the linkage device is located on the opposite side of the hinges. This allows the operator to have the largest lever arm away from the hinges when opening or closing the outer and inner doors, thus enabling the operator to open or close the outer and inner doors with the least amount of force.

[0035] This utility model also provides a washing machine, which includes the above-described door assembly.

[0036] In this solution, by installing the aforementioned door assembly on the washing machine, the inner and outer doors of the washing machine can be opened simultaneously with a single operation, thus improving convenience.

[0037] The positive and progressive effects of this utility model are as follows:

[0038] In this application, by means of the connection between the first linkage member provided on the side of the outer door facing the inner door and the second linkage member provided on the side of the inner door facing the outer door, the outer door moves relative to the inner door when it is subjected to external force. The aforementioned movement of the outer door further drives the inner door to move synchronously by means of the first linkage member and the second linkage member, so that the inner door can switch accordingly as the outer door switches between the open state and the closed state. That is, when the outer door is opened, the inner door is opened together and when the outer door is closed, the inner door is closed together, which improves convenience. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of a door assembly according to an embodiment of the present utility model;

[0040] Figure 2 This is a schematic diagram of the three-dimensional structure of a washing machine according to an embodiment of the present utility model;

[0041] Figure 3 This is a three-dimensional structural diagram of a washing machine according to an embodiment of the present invention.

[0042] 1000 washing machines

[0043] Door assembly 200

[0044] Hinges 300

[0045] Inner door 10

[0046] Relative motion space 20

[0047] Outer door 30

[0048] Linkage device 40

[0049] First linkage component 401

[0050] Linked main body 410

[0051] Slider 420

[0052] Pre-tightening section 430

[0053] First connecting plate 440

[0054] Second connecting plate 450

[0055] Second linkage component 501

[0056] Elastic component 510

[0057] Sliding cavity 520

[0058] Opening 530

[0059] Limiting part 540 Detailed Implementation

[0060] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0061] like Figure 1-3 As shown, this embodiment provides a door assembly 200 for use in a washing machine 1000. The door assembly 200 includes:

[0062] Inner door 10 and outer door 30 are arranged opposite to each other, with a relative movement space 20 between inner door 10 and outer door 30.

[0063] The linkage device 40 is disposed in the relative motion space 20 and includes a first linkage member 401 and a second linkage member 501. The first linkage member 401 is disposed on the side of the outer door 30 facing the inner door 10, and the second linkage member 501 is disposed on the side of the inner door 10 facing the outer door 30. The first linkage member 401 is connected to the second linkage member 501 and can move relative to the second linkage member 501.

[0064] The outer door 30 is configured to move relative to the inner door 10 and drive the inner door 10 to move when subjected to an external force, so that the inner door 10 switches between an open state and a closed state.

[0065] In practical implementation, through the connection between the first linkage 401 on the side of the outer door 30 facing the inner door 10 and the second linkage 501 on the side of the inner door 10 facing the outer door 30, the outer door 30 moves relative to the inner door 10 when subjected to external force. The movement of the outer door 30 further drives the inner door 10 to move synchronously by the first linkage 401 and the second linkage 501, so that the inner door 10 can switch accordingly as the outer door 30 switches between the open and closed states. That is, when the outer door 30 is opened, the inner door 10 is opened together, and when the outer door 30 is closed, the inner door 10 is closed together, which improves convenience.

[0066] In this embodiment, the door assembly 200 specifically includes a set of linkage devices 40 disposed between the inner door 10 and the outer door 30, thus providing a simpler implementation. However, those skilled in the art should be able to conceive that multiple sets of linkage devices 40 can also be used in a coordinated manner according to actual needs. For example, four or six sets of linkage devices 40 can be evenly distributed between the inner door 10 facing the outer door 30 and the outer door 30 facing the inner door 10, thereby aiming to further optimize the coordination between the inner door 10 and the outer door 30 when opening or closing. This embodiment does not limit this.

[0067] like Figure 1-3As shown, the first linkage 401 includes: a linkage body 410, the first end of which is connected to the second linkage 501, and the linkage body 410 is movable relative to the second linkage 501; and

[0068] Elastic element 510 is disposed between the outer door 30 on the side facing the inner door 10 and the second end of the linkage body 410.

[0069] When the inner door 10 is closed, the elastic element 510 is in a pre-compression state.

[0070] In specific implementation, the first linkage 401 includes a linkage body 410, the first end of which is connected to the second linkage 501, and the linkage body 410 is movable relative to the second linkage 501. Furthermore, an elastic member 510 is provided at the second end of the linkage body 410. The elastic member 510 reduces the connection stiffness between the inner door 10 and the outer door 30 through a flexible connection, reducing vibration transmission between them. Further, the elastic member 510 is located between the second end and the outer door 30, so that when the inner door 10 is closed, the elastic member 510, abutting against the outer door 30 and in a pre-compressed state, pushes the linkage body 410 towards the inner door 10. The linkage body 410 further directs the force to the second linkage 501 connected to it, thereby the second linkage 501 pushing the inner door 10, ensuring that the inner door 10 fully fits and seals the internal space of the washing machine 1000, thus fully guaranteeing airtightness.

[0071] In this embodiment, the elastic element 510 is specifically a spring, which is in a pre-compressed state when loaded to a designated position, that is, a compressed state. However, those skilled in the art will understand that other types of elastic elements 510 can be used, such as elastic rubber blocks and other elastic elements 510 commonly used in the art, and this embodiment does not limit this.

[0072] like Figure 1-3 As shown, the second linkage 501 has a sliding cavity 520;

[0073] The linkage body 410 includes a sliding block 420, which is held in a sliding cavity 520 and is movable within the sliding cavity 520;

[0074] The sliding cavity 520 has an opening 530 facing the outer door 30, and the elastic member 510 connects the sliding block 420 to the inner door 10 through the opening 530.

[0075] In specific implementation, the second linkage 501 has a sliding cavity 520, which contains a sliding block 420 on the linkage body 410. The sliding block 420 is movable in the sliding cavity 520, and the elastic member 510 connects the sliding block 420 to the inner door 10 through the opening 530 formed on the sliding cavity 520 facing the outer door 30. Thus, the sliding block 420 can slide in the sliding cavity 520, thereby providing sufficient freedom and damping for the relative movement between the inner door 10 and the outer door 30. Specifically, when both the inner door 10 and the outer door 30 are in the closed state, the inner door 10 can change the distance between itself and the outer door 30, and the inner door 10 can also translate relative to the outer door 30 in a way that the axes of the two are offset from each other along the thickness direction, allowing for movement in all directions.

[0076] Furthermore, in this embodiment, the sliding block 420 is a cylindrical sliding block 420, and the shape of the sliding cavity 520 matches the cylindrical sliding block 420. The sliding block 420 and the inner wall of the sliding cavity 520 are in full contact to ensure good damping effect. However, those skilled in the art should realize that the specific shape of the sliding block 420 can be adjusted according to actual needs, for example, a spherical sliding block 420 can be used, thereby further reducing the contact area between the sliding block 420 and the inner wall of the sliding cavity 520 and further optimizing the sliding efficiency. This embodiment does not limit this.

[0077] Furthermore, those skilled in the art should also realize that the gap between the sliding block 420 and the sliding cavity 520 can be filled with a damping material, such as graphite, to achieve the effects of lubrication and optimized damping. This embodiment does not limit this.

[0078] like Figure 1-3 As shown, the linkage body 410 also includes a pre-tightening part 430. The sliding block 420 extends toward the outer door 30 and passes through the opening 530. The elastic member 510 is connected to the pre-tightening part 430. When the inner door 10 is in the closed state, the pre-tightening part 430 pre-presses the elastic member 510 toward the outer door 30.

[0079] In practical implementation, the sliding block 420 extends towards the outer door 30 with a pre-tightening part 430 passing through the opening 530, thereby further pushing the elastic member 510 towards the outer door 30, so that the elastic member 510 can more fully enter the pre-compression state and accumulate elastic potential energy. This allows the elastic member 510, which is against the outer door 30 and in the pre-compression state, to more fully push the linkage body 410 towards the inner door 10. The linkage body 410 and the second linkage member 501 connected to it cooperate, and the second linkage member 501 pushes the inner door 10, which more fully ensures that the inner door 10 fits and seals the internal space of the washing machine 1000, further ensuring airtightness.

[0080] In this embodiment, the pre-tightening part 430 is a solid shaft extending directly from the sliding block 420 toward the outer door 30, thus providing a simpler implementation. However, those skilled in the art should realize that shaft structures commonly used in the art, such as piston connecting rods, can be used to further optimize the damping effect between the inner door 10 and the outer door 30 while ensuring the pushing effect on the elastic member 510. This embodiment does not limit this to such a method.

[0081] like Figure 1-3 As shown, the linkage body 410 also includes a first connecting plate 440. The first connecting plate 440 is disposed on the side of the pre-tightening part 430 facing the elastic member 510. The first connecting plate 440 and the pre-tightening part 430 are coaxially disposed. The elastic member 510 is disposed between the side of the outer door 30 facing the inner door 10 and the first connecting plate 440.

[0082] In particular, along the direction perpendicular to the axis of the pre-tightening part 430, the cross-sectional dimension of the first connecting plate 440 is larger than that of the pre-tightening part 430.

[0083] In specific implementation, the cross-sectional dimension of the first connecting plate 440 is larger than that of the pre-tightening part 430, ensuring that the first connecting plate 440 has a sufficiently large contact area to contact the elastic member 510, and ensuring that the effect of the pre-tightening part 430 pushing the elastic member 510 toward the outer door 30 is more sufficient.

[0084] like Figure 1-3 As shown, the linkage body 410 also includes a second connecting plate 450, which is attached to the end face of the outer door 30 facing the inner door 10, and the elastic member 510 is connected between the first connecting plate 440 and the second connecting plate 450.

[0085] In practice, the second connecting plate 450 is attached to the end face of the outer door 30 facing the inner door 10, and the elastic element 510 is connected between the first connecting plate 440 and the second connecting plate 450, thereby providing a designated installation position for the elastic element 510 and making the installation process more convenient.

[0086] like Figure 1-3 As shown, the first connecting plate 440 and the second connecting plate 450 are arranged in parallel. Along the direction perpendicular to the axis of the pre-tightening part 430, the cross-sectional dimensions of the first connecting plate 440 and the second connecting plate 450 are larger than the cross-sectional dimensions of the elastic member 510.

[0087] In practical implementation, the first connecting plate 440 and the second connecting plate 450 are arranged in parallel, thereby ensuring that the elastic member 510 compressed between the first connecting plate 440 and the second connecting plate 450 is subjected to balanced force, avoiding the skewing problem that may be caused by the force at a specific position being greater than the force at other positions; in addition, the cross-sectional dimensions of the first connecting plate 440 and the second connecting plate 450 are larger than the cross-sectional dimensions of the pre-tightening part 430, thereby ensuring that the elastic member 510 can be held between the first connecting plate 440 and the second connecting plate 450, avoiding the elastic member 510 overflowing from the edge of the first connecting plate 440 or the second connecting plate 450 after being subjected to force, thus avoiding uncertainties in terms of the force surface and angle.

[0088] In this embodiment, both the first connecting plate 440 and the second connecting plate 450 adopt a simple plate structure, thus providing a relatively simple implementation. However, those skilled in the art should realize that the specific shapes of the first connecting plate 440 and the second connecting plate 450 can be adjusted according to actual needs. For example, a limiting buckle can be provided at the edge of the first connecting plate 440 or the second connecting plate 450 to better prevent the elastic element 510 from overflowing or detaching from the edge of the first connecting plate 440 or the second connecting plate 450.

[0089] like Figure 1-3 As shown, a protruding limiting part 540 is provided on the inner wall of the sliding cavity 520, which restricts the sliding block 420 within the sliding cavity 520. In this embodiment, the limiting part 540 is directly formed on the end face of the sliding cavity 520 facing the outer door 30, and is folded in shape to wrap the sliding block 420 inside.

[0090] In specific implementation, a protruding limiting part 540 is provided on the inner wall of the sliding cavity 520. The limiting part 540 restricts the sliding block 420 in the sliding cavity 520, thereby ensuring that the sliding block 420 can always be accommodated in the sliding cavity 520, and avoiding structural failure caused by the sliding block 420 accidentally falling out of the sliding cavity 520.

[0091] like Figure 1-3 As shown, the door assembly 200 also includes:

[0092] A hinge is provided at the edge of the outer door 30 and the inner door 10 and connects the outer door 30 and the inner door 10. A linkage device 40 is provided on the side opposite to the hinge.

[0093] In practice, the hinges are located at the edges of the outer door 30 and the inner door 10, and the linkage device 40 is located on the opposite side of the hinges. This allows the operator to have the largest lever arm away from the hinges when opening or closing the outer door 30 and the inner door 10, so that the operator can open or close the outer door 30 and the inner door 10 with the smallest possible force.

[0094] like Figure 1-3 As shown, this embodiment also provides a washing machine 1000, which includes the door assembly 200 described above.

[0095] In practical implementation, by installing the aforementioned door assembly 200 on the washing machine 1000, the inner door 10 and outer door 30 of the washing machine 1000 can be opened simultaneously in one operation, improving convenience.

[0096] The washing machine 1000 can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the washing machine 1000 to perform corresponding operations, thereby realizing the intelligent control of the washing machine 1000 and improving the user experience.

[0097] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A door assembly for a washing machine, characterized in that, The door assembly includes: An inner door and an outer door are arranged opposite to each other, with a relative movement space between them; A linkage device is provided in the relative motion space and includes a first linkage member and a second linkage member. The first linkage member is provided on the side of the outer door facing the inner door, and the second linkage member is provided on the side of the inner door facing the outer door. The first linkage member is connected to the second linkage member and can move relative to the second linkage member. The outer door is configured to move relative to the inner door and drive the inner door to move when subjected to an external force, so that the inner door switches between an open state and a closed state.

2. The door assembly as described in claim 1, characterized in that, The first linkage component includes: a linkage body, a first end of which is connected to the second linkage component, and the linkage body is movable relative to the second linkage component; An elastic element is disposed between the side of the outer door facing the inner door and the second end of the linkage body; When the inner door is closed, the elastic element is in a pre-compressed state.

3. The door assembly as described in claim 2, characterized in that, The second linkage component has a sliding cavity; The linkage body includes a sliding block, which is held in the sliding cavity and is movable within the sliding cavity; The sliding cavity has an opening facing the outer door, and the elastic element connects the sliding block to the inner door through the opening.

4. The door assembly as described in claim 3, characterized in that, The linkage body also includes a pre-tightening part, the sliding block extends toward the outer door and passes through the opening of the pre-tightening part, the elastic element is connected to the pre-tightening part, and when the inner door is in the closed state, the pre-tightening part pre-presses the elastic element toward the outer door.

5. The door assembly as described in claim 4, characterized in that, The linkage body also includes a first connecting plate, which is disposed on the side of the pre-tightening part facing the elastic member. The first connecting plate is coaxially disposed with the pre-tightening part, and the elastic member is disposed between the side of the outer door facing the inner door and the first connecting plate. Wherein, along the direction perpendicular to the axis of the pre-tightening part, the cross-sectional dimension of the first connecting plate is larger than the cross-sectional dimension of the pre-tightening part.

6. The door assembly as described in claim 5, characterized in that, The linkage body also includes a second connecting plate, which is attached to the end face of the outer door facing the inner door, and the elastic element is connected between the first connecting plate and the second connecting plate.

7. The door assembly as described in claim 6, characterized in that, The first connecting plate and the second connecting plate are arranged parallel to each other. Along the direction perpendicular to the axis of the pre-tightening part, the cross-sectional dimensions of the first connecting plate and the second connecting plate are larger than the cross-sectional dimensions of the elastic element.

8. The door assembly as described in claim 3, characterized in that, The inner wall of the sliding cavity is provided with a protruding limiting part, which restricts the sliding block in the sliding cavity.

9. The door assembly as described in any one of claims 1-8, characterized in that, The door assembly also includes: A hinge is provided at the edge of the outer door and the inner door and connects the outer door and the inner door, and the linkage device is provided on the side opposite to the hinge.

10. A washing machine, characterized in that, The washing machine includes a door assembly as described in any one of claims 1-9.

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