CN218493383U - Hinge, door body subassembly and door refrigerator in door - Google Patents

Abstract

The application relates to the technical field of refrigerators and discloses a hinge. The hinge includes: the hinge plate comprises a first end and a second end, and the first end is used for fixing the hinge plate to a structure to be installed; the first hinge shaft is arranged at the second end; and a second hinge axis disposed at the second end; the first hinge shaft and the second hinge shaft are located on two opposite sides of the second end, and the first hinge shaft and the second hinge shaft are perpendicular to the hinge plate. The main door and the auxiliary door can be easily installed to the structure to be installed by utilizing the hinge, so that the installation efficiency is improved, and the installation cost is reduced. The application also discloses a door body subassembly and door refrigerator in the door.

Description

Hinge, door body component and door-in-door refrigerator

Technical Field

The application relates to the technical field of refrigerators, for example to a hinge, a door body assembly and a door-in-door refrigerator.

Background

A refrigerator is a refrigerating apparatus capable of providing a constant low temperature cold state to food or other items inside the refrigerator. More and more refrigerators are equipped with a door-in-door, which generally includes a main door provided on a refrigerator cabinet and a sub-door provided on the main door.

In the related art, a door assembly includes a main door, a sub-door, two main door hinges and two sub-door hinges. The two main door hinges are respectively arranged at the upper end and the lower end of the main door pivot side, the main door is rotatably connected with the structure to be installed through the two main door hinges, the two auxiliary door hinges are respectively arranged at the upper end and the lower end of the auxiliary door pivot side, and the auxiliary door is rotatably connected with the main door through the two auxiliary door hinges.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the door body subassembly that correlation technique provided need install two main door hinges, main door, two vice door hinges and vice door in proper order at the in-process of installation, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a hinge, a door body assembly and a door-in-door refrigerator, which can be used for easily installing a main door and an auxiliary door to a structure to be installed, and are beneficial to improving the installation efficiency and reducing the installation cost.

In some embodiments, the hinge comprises: the hinge plate comprises a first end and a second end, and the first end is used for fixing the hinge plate to a structure to be installed; the first hinge shaft is arranged at the second end; and, a second hinge axis disposed at the second end; the first hinge shaft and the second hinge shaft are located on two opposite sides of the second end, and the first hinge shaft and the second hinge shaft are perpendicular to the hinge plate.

Optionally, the first hinge shaft is provided as a first cylinder, and the second hinge shaft is provided as a second cylinder, wherein an axis of the first cylinder and an axis of the second cylinder coincide.

In some embodiments, the door body assembly comprises: the above-mentioned hinge; the two ends of the pivoting side of the main door are both provided with the hinges and are in rotating connection with the first hinge shafts of the hinges; the auxiliary door is arranged on one side of the main door, and two ends of the pivoting side of the auxiliary door are respectively in rotating connection with the second hinge shafts of the hinges on the corresponding side; so that the sub door can be rotated relative to the main door to be opened, and the sub door can be rotated in synchronization with the main door to be opened in synchronization with the main door.

Optionally, both ends of the pivoting side of the main door are provided with main door hinge slots, each main door hinge slot being adapted to receive the first hinge shaft of the corresponding side.

Optionally, both ends of the pivot side of the main door are provided with a limiting notch, and each limiting notch is adapted to accommodate the second end of the hinge of the corresponding side, wherein each main door hinge slot is located in the limiting notch of the corresponding side.

Optionally, fixing plates are arranged at two ends of the pivoting side of the auxiliary door, and the fixing plates face the side where the main door is located; wherein the fixing plate is provided with a fixing hole adapted to receive the second hinge shaft.

Optionally, the hinge plate is located between the fixed plate and the main door.

Optionally, when the assembly of the door body assembly is completed, the upper surface of the sub door, the upper end surface of the second hinge shaft and the upper surface of the main door are flush.

In some embodiments, the door-in-door refrigerator includes: a box body, wherein one or more chambers are arranged in the box body; and the door body assembly is arranged at the open end of at least one chamber of the box body.

Optionally, a fixing part is embedded in the box body, and the fixing part is used for being fixedly connected with the first end of the hinge plate of the door body assembly.

The hinge, the door body assembly and the door-in-door refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

the hinge plate in the hinge provided by the embodiment of the disclosure comprises a first end and a second end, wherein the first end is fixedly connected with a structure to be installed, and a first hinge shaft and a second hinge shaft are arranged on two sides of the second end. The first hinge shaft is rotatably connected with the main door, and the second hinge shaft is rotatably connected with the auxiliary door. The main door and the auxiliary door can be installed to the structure to be installed by using the same hinge, and the main door and the auxiliary door do not need to be installed by using the main door hinge and the auxiliary door hinge respectively as in the related art. Therefore, the hinge provided by the embodiment of the disclosure can easily install the main door and the auxiliary door to the structure to be installed, thereby being beneficial to improving the installation efficiency and reducing the installation cost.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in drawings corresponding thereto, the illustrations and drawings not being limitative of the embodiments, in which connection ports having the same reference numeral designations are shown as similar connection ports, and the drawings are not to scale and in which:

FIG. 1 is a schematic structural diagram of a hinge provided by embodiments of the present disclosure;

FIG. 2 is a schematic view of a door-in-door refrigerator according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a main door provided in the embodiments of the present disclosure;

FIG. 4 is a schematic view of a main door mounted to a hinge according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a sub-door according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of another door-in-door refrigerator provided in the embodiment of the present disclosure.

Reference numerals are as follows:

1. a hinge; 11. a hinge plate; 111. a first end; 112. a second end; 12. a first hinge axis; 13. a second hinge axis;

2. a main door; 21. a main door hinge slot; 22. a limiting notch; 23. a main door pivot side; 24. an avoidance groove;

3. a sub-door; 31. a sub door pivot side; 32. a fixing plate; 33. a fixing hole;

4. and (4) a box body.

Detailed Description

So that the manner in which the features and advantages of the embodiments of the present disclosure can be understood in detail, a more particular description of the embodiments of the disclosure, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their embodiments, and are not intended to limit the indicated devices, connection ports or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; either directly or indirectly through an intermediary, or internal communication between two devices, ports, or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. E.g., a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

A refrigerator is a refrigerating apparatus capable of providing a constant low temperature cold state to food or other items inside the refrigerator. More and more refrigerators are equipped with a door-in-door, which generally includes a main door provided on a refrigerator cabinet and a sub-door provided on the main door.

In the related art, a door assembly includes a main door, a sub-door, two main door hinges and two sub-door hinges. The two main door hinges are respectively arranged at the upper end and the lower end of the main door pivot side, the main door is rotatably connected with the structure to be installed through the two main door hinges, the two auxiliary door hinges are respectively arranged at the upper end and the lower end of the auxiliary door pivot side, and the auxiliary door is rotatably connected with the main door through the two auxiliary door hinges. However, in the installation process of the door body assembly provided by the related art, two main door hinges, a main door, two auxiliary door hinges and an auxiliary door need to be installed in sequence, which is time-consuming and labor-consuming.

Therefore, the embodiment of the disclosure provides a hinge, a door body assembly and a door-in-door refrigerator, and the hinge can be used for easily installing a main door and an auxiliary door to a structure to be installed, so that the installation efficiency is improved, and the installation cost is reduced.

In a first aspect, the disclosed embodiments provide a hinge 1.

Referring to fig. 1, the hinge 1 provided by the embodiment of the present disclosure includes a hinge plate 11, a first hinge shaft 12, and a second hinge shaft 13.

The hinge plate 11 includes a first end 111 and a second end 112, the first end 111 being used to secure the hinge plate 11 to a structure to be mounted. The first hinge axis 12 is disposed at the second end 112. The second hinge axis 13 is disposed at the second end 112. Wherein the first hinge shaft 12 and the second hinge shaft 13 are located at two opposite sides of the second end 112, and the first hinge shaft 12 and the second hinge shaft 13 are perpendicular to the hinge plate 11.

The hinge plate 11 of the hinge 1 provided by the embodiment of the present disclosure includes a first end 111 and a second end 112, the first end 111 is fixedly connected with a structure to be mounted, and a first hinge shaft 12 and a second hinge shaft 13 are disposed on two sides of the second end 112. Wherein the first hinge shaft 12 is rotatably connected with the main door 2, and the second hinge shaft 13 is rotatably connected with the sub door 3. The main door 2 and the sub door 3 can be mounted to the structure to be mounted by using the same hinge 1 without mounting the main door 2 and the sub door 3 by using a main door hinge and a sub door hinge, respectively, as in the related art. Therefore, the hinge 1 provided by the embodiment of the present disclosure can easily mount the main door 2 and the sub-door 3 to the structure to be mounted, which is beneficial to improving the mounting efficiency and reducing the mounting cost.

As the hinge plate 11, there is used for rotatable connection with the main door 2 and the sub door 3, and for fixing the hinge 1 to a structure to be installed.

Alternatively, the hinge plate 11 is provided as a rectangular parallelepiped, wherein the rectangular parallelepiped extends in the horizontal direction.

So arranged, the hinge plate 11 is easy to install.

Alternatively, referring to fig. 1, the end surface of the second end 112 of the hinge plate 11 is provided in an arc shape.

With this arrangement, the space occupied for installing the hinge plate 11 can be saved.

For the first and second hinge shafts 12 and 13, a second end 112 for rotatably connecting the main door 2 and the sub door 3 to the hinge plate 11.

Alternatively, referring to fig. 1, the first hinge axis 12 is provided as a first cylinder and the second hinge axis 13 is provided as a second cylinder.

This arrangement facilitates the rotatable connection of the main door 2 to the first hinge shaft 12 and facilitates the rotatable connection of the sub door 3 to the second hinge shaft 13.

Optionally, the axis of the first cylinder and the axis of the second cylinder coincide.

So arranged, the hinge is more compact in construction, and at the same time, the mounting of the main door 2 and the sub-door 3 to the second end 112 of the hinge 1 is facilitated.

Optionally, the diameter of the first cylinder is equal to the diameter of the second cylinder.

In a second aspect, embodiments of the present disclosure provide a door assembly.

With reference to fig. 1, 2, 3 and 5, the door body assembly includes two hinges 1, a main door 2 and a sub-door 3 provided in the first aspect. Wherein the main door 2 has a main door pivot side 23, the main door 2 rotating about the main door pivot side 23; the sub-door 3 has a sub-door pivot side 31, and the sub-door 3 rotates about the sub-door pivot side 31.

Hinges 1 are arranged at two ends of the main door pivoting side 23, and two ends of the main door pivoting side 23 are respectively and rotatably connected with the first hinge shafts 12 of the hinges 1 at the corresponding sides. The sub door 3 is disposed at one side of the main door 2, and both ends of the sub door pivot side 31 are rotatably connected with the second hinge shafts 13 of the hinges 1 at the corresponding sides, respectively, so that the sub door 3 can rotate relative to the main door 2 to be opened, and the sub door 3 can rotate in synchronization with the main door 2 to be opened in synchronization with the main door 2.

According to the door body assembly provided by the embodiment of the disclosure, the hinge plate 11 of the hinge 1 comprises a first end 111 and a second end 112, the first end 111 is fixedly connected with a structure to be installed, and a first hinge shaft 12 and a second hinge shaft 13 are arranged on two sides of the second end 112. The main door 2 is rotatably connected to one side of the second end 112 by a first hinge shaft 12, and the sub door 3 is rotatably connected to the other side of the second end by a second hinge shaft 13. The installation of the main door 2 and the sub-door 3 to the structure to be installed can be achieved by using the same hinge 1, without the need to separately implement the installation of the main door 2 and the sub-door 3 by using a main door hinge and a sub-door hinge as in the related art. Therefore, the door body assembly provided by the embodiment of the disclosure can easily install the main door 2 and the auxiliary door 3 to the structure to be installed, thereby being beneficial to improving the installation efficiency and reducing the installation cost.

Alternatively, referring to fig. 3, both ends of the main door pivot side 23 are provided with main door hinge slots 21, each main door hinge slot 21 being adapted to receive the first hinge shaft 12 of the corresponding side.

The rotatable connection of the main door 2 to the second end 112 of the hinge plate 11 is achieved by the engagement of the main door hinge slot 21 at both ends of the main door pivot side 23 with the first hinge axis 12 at the corresponding side.

To illustrate the case where the main door 2 is provided in the vertical direction, one hinge 1 is provided at the upper end of the main door pivot side 23, and one hinge 1 is provided at the lower end of the main door pivot side 23. The upper end of the main door pivot side 23 is provided with a main door hinge slot 21 and the lower end of the main door pivot side 23 is provided with a main door hinge slot 21. The rotatable connection of the main door 2 to the hinge 1 is achieved by inserting the first hinge axis 12 of the hinge 1 at the upper end of the main door pivot side 23 into the main door hinge slot 21 at the upper end of the main door pivot side 23 and inserting the first hinge axis 12 of the hinge 1 at the lower end of the main door pivot side 23 into the main door hinge slot 21 at the lower end of the main door pivot side 23.

Optionally, in conjunction with fig. 3 and 4, both ends of the main door pivot side 23 are provided with a retention notch 22, each retention notch 22 being adapted to receive the second end 112 of the corresponding side, wherein each main door hinge slot 21 is located in the retention notch 22 of the corresponding side.

The second end 112 of the corresponding side hinge 1 can be accommodated by arranging the limiting notch 22, and the upper surface of the second end 112 of the hinge 1 can be prevented from being higher than the upper surface of the main door 2, so that the occupied space of the refrigerator is prevented from being increased.

Optionally, each of the restraint notches 22 includes first and second restraint notch inner walls that are perpendicular to each other. The extending direction of the inner wall of the first limit notch is parallel to the width direction of the main door 2, and the extending direction of the inner wall of the second limit notch is parallel to the length direction of the main door 2.

Optionally, with reference to fig. 3 and fig. 4, the limiting notch 22 is further provided with an avoiding groove 24, and the avoiding groove 24 is disposed on the inner wall of the second limiting notch and is communicated with the limiting notch 22. The escape slot 24 is located to correspond to the location of the main door hinge slot 21 on the corresponding side for providing a space for the relative rotation of the second end 112 and the main door 2.

By providing the escape slot 24, sufficient space is provided for relative rotation of the second end 112 and the main door 2, thereby avoiding the restriction notch 22 from being provided too large to take up too much space of the main door 2. Conversely, if the spacing notch 22 is not provided with the escape slot 24, the width of the spacing notch 22 needs to be increased in order to provide sufficient space for the relative rotation of the second end 112 and the main door 2, which takes up more space of the main door 2 and is disadvantageous for the arrangement of other structures of the main door 2. The extending direction of the width of the limit notch 22 is the same as the extending direction of the width of the main door 2.

Optionally, the avoidance groove 24 is provided in an arc shape, the arc opening facing the limit notch 22.

Alternatively, referring to fig. 5, the fixing plates 32 are provided at both ends of the sub-door pivoting side 31, the fixing plates 32 facing the side of the main door 2. Wherein the fixing plate 32 is provided with a fixing hole 33, and the fixing hole 33 is adapted to receive the second hinge shaft 13.

The rotatable connection of the sub-door 3 to the second end 112 of the hinge 1 is facilitated by the provision of the fixing plates 32 at both ends of the sub-door pivot side 31. Specifically, the second hinge shafts 13 of the two hinges 1 are respectively inserted into the fixing holes 33 on the corresponding sides, so that the sub door 3 can be rotatably connected with the hinges 1.

Alternatively, referring to fig. 6, the hinge plate 11 is positioned between the fixing plate 32 and the main door 2. So set up, be convenient for arrange for the structure is compacter.

To illustrate by way of example, the main door 2 and the sub-door 3 are arranged in a vertical direction, and at the upper end of the main door pivot side 23, the fixing plate 32, the hinge plate 11 and the main door 2 are arranged in this order from top to bottom; at the lower end of the main door pivot side 23, the fixing plate 32, the hinge plate 11 and the main door 2 are disposed in this order from the bottom up.

Alternatively, in the case where the assembly of the door body assembly is completed, the upper surface of the sub door 3, the upper end surface of the second hinge shaft 13, and the upper surface of the main door 2 are flush.

The upper surface of the auxiliary door 3, the upper end surface of the second hinge shaft 13 and the upper surface of the main door 2 are arranged to be flush with each other, so that the structure of the refrigerator can be kept uniform, and the use experience of a user can be improved conveniently. For example, if the upper end surface of the second hinge shaft 13 is higher than the upper surface of the sub-door 3 and the upper surface of the main door 2, when the user mounts the refrigerator to a predetermined position, a certain gap is always left at the top of the refrigerator, which not only affects the appearance of the refrigerator, but also causes a sanitary dead angle, which is difficult for the user to clean, and reduces the user experience.

In a third aspect, the embodiment of the present disclosure further provides a door-in-door refrigerator.

Referring to fig. 6, the door-in-door refrigerator includes a refrigerator body 4 and the door body assembly provided in the second aspect.

One or more compartments are provided inside the housing 4. The door body assembly provided in the second aspect is provided at the open end of at least one compartment of the cabinet 4.

In the door-in-door refrigerator provided by the embodiment of the disclosure, the hinge plate 11 of the hinge 1 comprises a first end 111 and a second end 112, the first end 111 is fixedly connected with the refrigerator body 4, and a first hinge shaft 12 and a second hinge shaft 13 are arranged on two sides of the second end 112. The main door 2 is rotatably coupled to one side of the second end 112 by a first hinge shaft 12, and the sub door 3 is rotatably coupled to the other side of the second end by a second hinge shaft 13. The mounting of the main door 2 and the sub door 3 to the cabinet 4 can be achieved using the same hinge 1 without the need to separately implement the mounting of the main door 2 and the sub door 3 using a main door hinge and a sub door hinge as in the related art. Therefore, the door body assembly provided by the embodiment of the disclosure can easily install the main door 2 and the auxiliary door 3 to the box body 4, which is beneficial to improving the installation efficiency and reducing the installation cost.

The number of chambers inside the box 4 and the number of door components may be the same or different. The following is illustrated by way of example:

in a possible embodiment, the number of compartments inside the box 4 is the same as the number of door assemblies. The inside of the door-in-door refrigerator is provided with a first chamber and a second chamber, and the first chamber is arranged on the left side of the second chamber. The door-in-door refrigerator also comprises two door body assemblies provided by the second aspect, namely a first door body assembly and a second door body assembly. The first compartment can be opened or closed by rotating the first door body assembly, and the second compartment can be opened or closed by rotating the second door body assembly.

In a possible embodiment, the number of compartments inside the casing 4 is different from the number of door components. Referring to fig. 2 and 6, a first compartment and a second compartment are provided inside the door-in-door refrigerator, and the first compartment is provided at an upper portion of the second compartment. The door-in-door refrigerator further comprises four door body assemblies provided by the second aspect, namely a first door body assembly, a second door body assembly, a third door body assembly and a fourth door body assembly. The first door body assembly and the second door body assembly are symmetrically arranged on the left side and the right side of the first chamber, the first chamber can be closed by closing the first door body assembly and the second door body assembly simultaneously, and the first chamber can be opened by opening the first door body assembly and/or the second door body assembly. The third door body assembly and the fourth door body assembly are symmetrically arranged on the left side and the right side of the second chamber, the second chamber can be closed by closing the third door body assembly and the fourth door body assembly simultaneously, and the second chamber can be opened by opening the third door body assembly and/or the fourth door body assembly.

In a possible embodiment, the number of compartments inside the casing 4 is different from the number of door components. The inside of the door-in-door refrigerator is provided with a first compartment. The door-in-door refrigerator further comprises three door body assemblies provided by the second aspect, namely a first door body assembly, a second door body assembly and a third door body assembly. First door body subassembly, second door body subassembly and third door body subassembly set gradually along the horizontal direction, and the pivot side of first door body subassembly and the pivot side of third door body subassembly set up in box 4 along vertical direction, and the pivot side of second door body subassembly sets up in box 4 along the horizontal direction. The first compartment can be closed by closing the first door body assembly, the second door body assembly and the third door body assembly at the same time, and the first compartment can be opened by opening the first door body assembly and/or the second door body assembly and/or the third door body assembly.

Optionally, the box 4 is embedded with a fixing member, and the fixing member is used for being fixedly connected with the first end 111 of the hinge plate 11 of the door body assembly.

With this arrangement, the hinge 1 can be firmly fixed to the case 4 by the fixing member.

Optionally, the embedment is a reinforcing iron. So set up, not only can improve the firmness between hinge 1 and the box 4, can also practice thrift the cost.

Alternatively, the fastening member is coupled to the first end 111 of the hinge plate 11 in a screw manner. That is, the fixing member and the first end 111 are provided with screw holes, and when connecting, the bolt sequentially passes through the fixing member and the screw holes of the first end of the corresponding side, and then the bolt is tightened to realize the fixed connection between the hinge plate 11 and the fixing member.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A hinge (1), characterized in that it comprises:

a hinge plate (11) comprising a first end (111) and a second end (112), the first end (111) being for securing the hinge plate (11) to a structure to be mounted;

a first hinge axis (12) disposed at the second end (112); and (c) and (d),

a second hinge axis (13) disposed at the second end (112);

the first hinge shaft (12) and the second hinge shaft (13) are located on two opposite sides of the second end (112), and the first hinge shaft (12) and the second hinge shaft (13) are perpendicular to the hinge plate (11).

2. Hinge (1) according to claim 1,

the first hinge shaft (12) is arranged to be a first cylinder, and the second hinge shaft (13) is arranged to be a second cylinder, wherein the axis of the first cylinder and the axis of the second cylinder are coincident.

3. A door assembly, comprising:

a hinge (1) according to claim 1 or 2;

the two ends of the pivoting side of the main door (2) are provided with the hinges (1) and are rotationally connected with the first hinge shafts (12) of the hinges (1);

the auxiliary door (3) is arranged on one side of the main door (2), and two ends of the pivoting side of the auxiliary door are respectively in rotating connection with the second hinge shaft (13) of the hinge (1) on the corresponding side; so that the auxiliary door (3) can rotate relative to the main door (2) to open, and the auxiliary door (3) can rotate synchronously with the main door (2) to open synchronously with the main door (2).

4. The door body assembly according to claim 3,

the two ends of the pivoting side of the main door (2) are provided with main door hinge grooves (21), and each main door hinge groove (21) is suitable for accommodating the first hinge shaft (12) on the corresponding side.

5. The door body assembly according to claim 4,

two ends of the pivoting side of the main door (2) are provided with limiting notches (22), each limiting notch (22) is suitable for accommodating the second end (112) of the hinge (1) on the corresponding side, and each main door hinge groove (21) is located in the limiting notch (22) on the corresponding side.

6. The door body assembly according to any one of claims 3 to 5,

fixing plates (32) are arranged at two ends of the pivoting side of the auxiliary door (3), and the fixing plates (32) face the side where the main door (2) is located;

wherein the fixing plate (32) is provided with a fixing hole (33), and the fixing hole (33) is suitable for accommodating the second hinge shaft (13).

7. The door body assembly according to claim 6,

the hinge plate (11) is located between the fixing plate (32) and the main door (2).

8. The door body assembly according to claim 7,

when the door body assembly is assembled, the upper surface of the auxiliary door (3), the upper end surface of the second hinge shaft (13) and the upper surface of the main door (2) are flush.

9. A door-in-door refrigerator, comprising:

a box body (4) in which one or more compartments are arranged; and the combination of (a) and (b),

the door body assembly according to any one of claims 3 to 8, provided to an open end of at least one compartment of the cabinet (4).

10. The door-in-door refrigerator as claimed in claim 9,

the door body assembly is characterized in that a fixing piece is embedded in the box body (4), and the fixing piece is used for being fixedly connected with a first end (111) of a hinge plate (11) of the door body assembly.

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