Door assembly for refrigerator and refrigerator

Abstract

The present invention provides a door assembly for a refrigerator and a refrigerator, and relates to the technical field of refrigerators. The refrigerator of the present invention includes a box body arranged in sequence, and the door assembly includes a first door body, a second door body, an upper hinge and a first lower hinge. The first door body is rotatably connected to the box body, the upper area of ​​the first door body is closed, and the lower area of ​​the first door body is defined by a door frame to form a forward opening. The upper hinge includes a rotating shaft and a first axial hole that cooperate with each other, the rotating shaft extends in a vertical direction, and is arranged at the bottom of the closed area of ​​the first door body or at the top of the second door body, and the first axial hole is arranged at the top of the second door body or at the bottom of the closed area of ​​the first door body. The first lower hinge is arranged between the bottom surface of the second door body and the first door body. The upper hinge of the present invention does not need to provide a connecting structure to connect the rotating shaft and the box body, thereby simplifying the structure of the upper hinge and reducing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a door assembly for a refrigerator and a refrigerator. Background Art

[0002] As people's living standards improve, the requirements for the volume and intelligence of refrigerators are getting higher and higher. In existing refrigerators, as the volume of refrigerators increases, the refrigerator door body also increases. In many cases, when users open the refrigerator, they do not need to use all the functions of the refrigerator, that is, they do not need to fully open the refrigerator door body to meet the needs. At this time, opening all the refrigerator doors will not only make the user laborious, but also as the refrigerator door body is opened, cold air will continue to run out of the refrigerator in a large area, causing the refrigerator to consume more electricity. To solve this problem, the stacking door refrigerator came into being. The current stacking door refrigerators are directly stacked on the outside of the first door with a second door body that is almost the same as the first door body. Since the outer surface area of ​​the first door body and the second door body is the same, whether the first door body or the second door body is opened, the cold air in the refrigerator will leak out to a large extent, so that the power consumption of the refrigerator is almost the same. And the first door body and the second door body are directly connected by hinges arranged on the upper end face and the lower end face of the door body. The hinge structure of the first door body and the second door body requires a hinge plate to be connected to the box body or the door body, and the structure is relatively complex. In addition, the existing hinges only have the function of stopping the first door body, but cannot stop the second door body independently of the first door body. Summary of the invention

[0003] An object of the first aspect of the present invention is to provide a door assembly for a refrigerator to solve the problem of complex structure of the hinges of the folding door assembly in the prior art.

[0004] Another object of the first aspect of the present invention is to solve the problem that the hinges of the door assembly in the prior art are arranged at the top and bottom positions of the refrigerator door body so that the outer surface area of ​​the first door body is consistent with the outer surface area of ​​the second door body, making the refrigerator not energy-efficient.

[0005] An object of the first aspect of the present invention is to solve the problem in the prior art that the first door body and the second door body cannot be stopped independently.

[0006] An object of the second aspect of the present invention is to provide a refrigerator including the door assembly.

[0007] In particular, the present invention provides a door assembly for a refrigerator,

[0008] The refrigerator comprises a box body, and the door body assembly comprises:

[0009] A first door body is rotatably connected to the box body, the upper area of ​​the first door body is closed, and the lower area of ​​the first door body is defined by a door frame to form a forward opening;

[0010] A second door body disposed outside the first door body, the second door body being adapted to the size of the opening and being rotatably connected to the first door body at the opening to open and close the opening;

[0011] an upper hinge, comprising a rotating shaft and a first shaft hole which cooperate with each other, wherein the rotating shaft extends in a vertical direction and is arranged at the bottom of the closed area of ​​the first door body or at the top of the second door body, and the first shaft hole is arranged at the top of the second door body or at the bottom of the closed area of ​​the first door body; and

[0012] a first lower hinge, disposed between a bottom surface of the second door body and a bottom surface of the door frame;

[0013] The upper hinge and the first lower hinge are used to realize the rotation connection between the second door body and the first door body. Optionally, the upper end of the door frame is located at the middle position of the height direction of the first door body.

[0014] Optionally, it further comprises a second lower hinge, located at the bottom surface of the door frame, for rotatably connecting the first door body to the box body;

[0015] The first lower hinge includes a connecting piece, which is fixedly connected to the bottom surface of the door frame and has a rotation limit piece extending from the side close to the second door body. The rotation limit piece is rotatably connected to the second door body and is used to enable the second door body to rotate relative to the first door body within a first preset angle range; the connecting piece is provided with a stop block at the side away from the second door body, and the stop block cooperates with the second lower hinge to enable the first door body to rotate relative to the box body within a second preset angle range.

[0016] Optionally, a second shaft hole is provided inside the lower end of the second door body;

[0017] The rotation limiting member comprises:

[0018] a hinge shaft connected to an end of the connecting member away from the door frame and extending toward the inner part of the second door body; and

[0019] A stop assembly is arranged at the second shaft hole, and the stop assembly cooperates with the hinge shaft to enable the second door body to rotate relative to the first door body within the first preset angle range.

[0020] Optionally, the stop assembly comprises:

[0021] a housing connected to the second door body;

[0022] a rotating member disposed in the housing, the rotating member cooperating with the hinge shaft to rotate synchronously with the hinge shaft;

[0023] The stopper disposed in the shell is located on the side of one end of the rotating member in the axial direction and is anti-rotationally connected to the shell, and is used to make the rotating member rotate relative to the stopper within the first preset angle range when the rotating member rotates.

[0024] Optionally, the rotating member is provided with a protrusion at one end close to the stopper;

[0025] The stopper is provided with a groove portion at one end close to the rotating member;

[0026] Wherein, the protrusion cooperates with the groove portion so that the rotating member rotates relative to the stop member within the first preset angle range.

[0027] Optionally, a convex block protruding in the radial direction of the stopper is provided on the outer peripheral surface of the stopper;

[0028] The inner wall of the shell is provided with a guide groove cooperating with the protrusion, and the guide groove extends in a direction parallel to the axis of the stopper, so that the stopper can translate in a direction parallel to the axis under the guidance of the guide groove.

[0029] Optionally, the groove portion of the stopper includes an inclined surface, and the inclined surface extends from the bottom end of the groove portion to a position close to the opening;

[0030] The door body assembly also includes a spring, which abuts between the end of the stopper opposite to the rotating member and the inner wall of the shell. The spring is used to be compressed when the door opening force causes the protrusion of the rotating member to contact the inclined surface of the stopper, and to provide an elastic force to urge the stopper to move downward when the door opening force is cancelled, so that the rotating member rotates in the opposite direction until the protrusion abuts against the bottom end of the groove.

[0031] Optionally, the rotating member is located between the connecting member and the stopping member.

[0032] The stopper assembly further comprises a gasket, which is arranged in the housing and between the bottom of the rotating member and the inner wall of the bottom of the housing.

[0033] In particular, the present invention also provides a refrigerator, comprising the door assembly described above.

[0034] The upper hinge of the door body assembly of the present invention includes a rotating shaft arranged at the first door body or the second door body and a first axial hole arranged at the second door body or the first door body. There is no need to provide a connecting structure to connect the rotating shaft and the box body, thereby simplifying the structure of the upper hinge and reducing costs.

[0035] Furthermore, the refrigerator of the present invention rotatably connects a second door body smaller than the first door body with the first door body through the upper hinge and the first lower hinge, so that the second door body can be opened independently of the first door body. When the second door body of the refrigerator is opened to store or access items, the cold air in the refrigerator only leaks out through the second door body. Compared with directly opening the first door body or opening a second door body of the same size as the first door body, the refrigerator is more energy-efficient.

[0036] Furthermore, the first lower hinge of the present invention is provided with a stop mechanism that can serve as the second door body, and can cooperate with the second lower hinge to stop the first door body when it rotates, and the two stopping processes of the first door body and the second door body of the first lower hinge during the rotation process are independent of each other, the rotation angle of the second door body is not affected by the opening angle of the first door body, and the first door body and the second door body do not interfere with each other during the opening process.

[0037] Furthermore, the side wall of the groove portion of the stopper of the door assembly of the present invention forms an inclined surface structure, which can not only make the second door of the refrigerator stopped by the stopper when opening, but also, under the action of the inclined surface, give the second door a reaction force when the second door is opened to a certain position, so as to prevent the second door from rotating under the action of inertia or rotating under the action of a large external thrust until the protrusion directly collides with the side wall of the groove portion and damages the protrusion, thereby extending the service life of the door assembly. In addition, when the second door rotates until the protrusion contacts the side wall of the groove portion and the force given to the second door is released, the second door can also, under the action of the elastic force of the spring, push the protrusion by the inclined surface of the groove portion and then make the stopper drive the second door to rotate, so that the second door has a tendency to rotate, which is conducive to the closing of the second door.

[0038] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0040] Figure 1 is a schematic front view of a refrigerator according to one embodiment of the present invention;

[0041] Figure 2 is a schematic perspective view of a refrigerator according to an embodiment of the present invention;

[0042] Figure 3 is a partial enlarged schematic diagram of an upper hinge position of a refrigerator according to an embodiment of the present invention;

[0043] Figure 4 is a schematic structural diagram of a refrigerator at locations of a first lower hinge and a second lower hinge according to an embodiment of the present invention;

[0044] Figure 5 is a schematic structural diagram of a refrigerator at another angle where a first lower hinge and a second lower hinge are located according to an embodiment of the present invention;

[0045] Figure 6 is a schematic structural diagram of a connecting member of a first lower hinge according to an embodiment of the present invention;

[0046] Figure 7 is a schematic exploded view of a stopper assembly of a first lower hinge according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. Figure 2 is a schematic perspective view of a refrigeration system located at a refrigerator according to another embodiment of the present invention. As a specific embodiment of the present invention, this embodiment discloses a door assembly 200 for a refrigerator 100. Specifically, as Figure 1 and Figure 2 As shown, the refrigerator 100 of this embodiment may be a folding door refrigerator 100, and the refrigerator 100 may include a box body 10 and a door assembly 200 arranged in sequence. Among them, the door assembly 200 may include a first door body 20 and a second door body 30. The first door body 20 is rotatably connected to the box body 10, the upper area of ​​the first door body 20 is closed, and the lower area of ​​the first door body 20 is defined by a door frame 23 to form a forward opening 21. The second door body 30 is arranged outside the first door body 20. The second door body 30 is adapted to the size of the opening 21, and the second door body 30 is rotatably connected to the first door body 20 at the opening 21 to open and close the opening 21.

[0048] Generally speaking, the first door body 20 of the present embodiment may be just one of more than 100 door bodies of the refrigerator, and the second door body 30 is another door body which is smaller than the first door body 20 and is arranged on the surface of the first door body 20 .

[0049] Figure 3 is a partial enlarged schematic diagram of an upper hinge position of a refrigerator according to an embodiment of the present invention;

[0050] Figure 4 is a schematic structural diagram of a refrigerator at locations of a first lower hinge and a second lower hinge according to an embodiment of the present invention; Figure 5 1 is a schematic structural diagram of a refrigerator at another angle where the first lower hinge and the second lower hinge are located according to an embodiment of the present invention.

[0051] As a specific embodiment of the present invention, Figure 3-Figure 5 As shown, the door assembly 200 of this embodiment may also include an upper hinge 210 and a first lower hinge 220. The upper hinge 210 is disposed between the top surface of the second door body 30 and the upper end position of the first door body 20 at the opening 21. The upper hinge 210 may include a rotating shaft 211 and a first shaft hole 212 that cooperate with each other. The rotating shaft 211 extends in the vertical direction and is disposed at the bottom of the closed area of ​​the first door body 20 or at the top of the second door body 30. The first shaft hole 212 is disposed at the top of the second door body 30 or at the bottom of the closed area of ​​the first door body 20. Specifically, as one of the specific embodiments, the upper hinge 210 of this embodiment may include a rotating shaft 211 disposed near the right side of the top position of the opening 21 of the first door body 20, and the rotating shaft 211 may extend vertically downward. The first shaft hole 212 is disposed at a position of the second door body 30 that cooperates with the rotating shaft 211, and the rotating shaft 211 may be directly inserted into the first shaft hole 212. The second door body 30 can rotate around the rotating shaft 211 as an axis.

[0052] Specifically, the first lower hinge 220 is disposed between the bottom surface of the second door body 30 and the bottom surface of the door frame. The upper hinge 210 and the first lower hinge 220 are used to realize the rotation connection between the second door body 30 and the first door body 20 together.

[0053] Specifically, in this embodiment, a door frame 23 is formed in the lower area of ​​the first door body 20, and the door frame 23 defines a forward opening 21, and the size of the door frame 23 or the opening 21 is smaller than the size of the first door body 20. The second door body 30 is used to cover the position of the opening 21. The second door body 30 of this embodiment is rotatably connected with the first door body 20 by an upper hinge 210 and a first lower hinge 220. Since the size of the second door body is smaller than that of the first door body 20, the upper hinge 210 is set at a non-top position of the first door body 20. Since the opening 21 is located at the lower position of the first door body 20, the first lower hinge 220 is set at the bottom position of the first door body 20 and the second door body 30.

[0054] In addition, the upper hinge 210 of the present embodiment includes a rotating shaft 211 arranged at the first door body 20 or the second door body 30 and a first shaft hole 212 arranged at the second door body 30 or the first door body 20. There is no need to provide a connecting structure to connect the rotating shaft 211 and the box body 10, thereby simplifying the structure of the upper hinge 210 and reducing costs.

[0055] In this embodiment, a second door body 30 which is smaller than the first door body 20 is rotatably connected to the first door body 20 through the upper hinge 210 and the first lower hinge 220, so that the second door body 30 can be opened independently of the first door body 20. When the second door body 30 of the refrigerator 100 is opened to store or access items, the cold air in the refrigerator 100 leaks out only through the second door body 30. Compared with directly opening the first door body 20 or opening the second door body 30 of the same size as the first door body 20, the refrigerator 100 is more energy-efficient.

[0056] As a specific embodiment of the present invention, the upper end of the door frame of this embodiment is located at the middle position in the height direction of the first door body 20, the upper hinge 210 is used to connect the top surface of the second door body 30 and the middle position of the first door body 20, and the first lower hinge 220 is used to connect the bottom surface of the first door body 20 and the bottom surface of the second door body 30.

[0057] In this embodiment, the outer side area of ​​the second door body 30 is substantially equal to half of the outer side area of ​​the first door body 20 , and the upper hinge 210 is directly arranged at the middle position in the height direction of the first door body 20 to ensure the rotational connection between the second door body 30 and the first door body 20 .

[0058] As a specific embodiment of the present invention, the door assembly 200 of this embodiment may further include a second lower hinge 230, which is used to rotatably connect the first door 20 to the cabinet 10. Specifically, the first door 20 is rotatably connected to the cabinet 10 of the refrigerator 100 directly using two hinges arranged above and below the first door 20. The hinge located at the lower end of the first door 20 is the second lower hinge 230 in this embodiment.

[0059] Figure 6 is a schematic structural diagram of a connecting member of a first lower hinge according to an embodiment of the present invention. As a specific embodiment of the present invention, Figure 6As shown, the first lower hinge 220 of this embodiment may include a connecting member 221, which is fixedly connected to the bottom end of the door frame 23, and has a rotation stopper 222 extending from the side close to the second door body 30, and the rotation stopper 222 is rotatably connected to the second door body 30, and is used to make the second door body 30 rotate within a first preset angle range relative to the first door body 20. The connecting member 221 is provided with a stopper 223 at the side away from the second door body 30, and the stopper 223 cooperates with the second lower hinge 230, and is used to make the first door body 20 rotate within a second preset angle range relative to the box body 10.

[0060] In the present embodiment, the first lower hinge 220 is provided with a stop mechanism that can serve as the second door body 30, and can cooperate with the second lower hinge 230 to stop the first door body 20 when it rotates, and the two stopping processes of the first door body 20 and the second door body 30 of the first lower hinge 220 during the rotation process are independent of each other, the rotation angle of the second door body 30 is not affected by the opening angle of the first door body 20, and the first door body 20 and the second door body 30 do not interfere with each other during the opening process.

[0061] As a specific embodiment of the present invention, a second shaft hole (not shown in the figure) is provided at the lower end of the second door body 30. The rotation limiter 222 of this embodiment may include a stopper assembly 224 and a hinge shaft 225. The hinge shaft 225 is provided at one end of the connecting member 221 away from the first door body 20, and the hinge shaft 225 extends into the interior of the second door body 30. The stopper assembly 224 is fixedly connected to the second door body 30 and is located at the second shaft hole. The stopper assembly 224 cooperates with the hinge shaft 225 to allow the second door body 30 to rotate within a first preset angle range.

[0062] The second door body 30 of this embodiment can directly cooperate with the hinge shaft 225 and the stop assembly 224 so that the second door body 30 can be rotated and can be restricted within the first preset angle range.

[0063] Figure 7 is a schematic exploded view of a stopper assembly of a first lower hinge according to an embodiment of the present invention. As a specific embodiment of the present invention, Figure 7 As shown, the stopper assembly 224 of this embodiment may include a housing 226, a rotating member 227 and a stopper 228. The housing 226 is disposed at the position of the second shaft hole of the second door body 30. The rotating member 227 is disposed in the housing 226, and the rotating member 227 cooperates with the hinge shaft 225 to rotate synchronously with the hinge shaft 225. The stopper 228 is disposed in the housing 226, located at the side of one end of the rotating member 227 in the axial direction, and is connected to the housing 226 to prevent rotation, and is used to make the rotating member 227 rotate relative to the stopper 228 within a first preset angle range when the rotating member 227 rotates.

[0064] In this embodiment, the connecting member 221 is plate-shaped and is arranged horizontally when the refrigerator 100 is placed on a flat bottom. One end of the connecting member 221 is connected to the bottom surface of the first door body 20 of the refrigerator 100 through a fastener. The hinge shaft 225 at the other end is located on the upper side of the connecting member 221 and extends vertically upward. The second shaft hole can also be arranged vertically and is arranged at an inner position of the second door body 30.

[0065] In this embodiment, the rotating member 227 is located between the connecting member 221 and the stopping member 228 .

[0066] Specifically, the housing 226 may be a hollow columnar structure. More specifically, the interior of the housing 226 is a cylindrical hollow structure, and the exterior may be a cubic structure. The rotating member 227 and the stopper 228 cooperate with the internal hollow structure of the housing 226 to form a cylindrical structure on the outer side. The upper end of the housing 226 may also include a top cover 247, and the top cover 247 and the housing 226 are fixed together by a latch 248.

[0067] Specifically, the rotating member 227 can be a hollow cylindrical structure, and its outer circumference cooperates with the inner wall of the housing 226. The bottom end surface of the rotating member 227 is a planar structure, and the end surface is formed with a non-circular through hole 241 that penetrates the hollow structure of the housing 226. The outer circumference of the hinge shaft 225 is adapted to the structure of the through hole 241. When the hinge shaft 225 rotates relative to the second door body 30, the hinge shaft 225 drives the rotating member 227 to rotate. Specifically, the through hole 241 can be a rectangular structure, and of course it can also be other structures such as a square structure, a pentagonal structure, a hexagonal structure, etc. The cross-section of the hinge shaft 225 is adapted to the structure of the through hole 241. Taking the through hole 241 as a rectangular structure and the hinge shaft 225 as a rectangular structure as an example, when the hinge shaft 225 is passed through the through hole 241, the hinge shaft 225 cannot rotate relative to the through hole 241, and therefore the hinge shaft 225 can rotate together with the rotating member 227.

[0068] In addition, the outer periphery of the stopper 228 may also be a circular structure, and the stopper 228 is arranged at the upper end of the rotating member 227. The stopper 228 may be connected to the second door body 30 to prevent rotation. The rotating member 227 and the hinge shaft 225 may be rotated relative to the second door body 30 within a first preset angle range through the stopper 228. Specifically, the first preset angle range may be 0-175°. That is, the first door body 20 may rotate relative to the second door body 30 within a range of 0-175°, and when the second door body 30 continues to rotate, it will be stopped by the stopper 228 and stop rotating. Of course, the first preset angle range may be designed according to actual conditions. Generally, the angle at which the second door body 30 is opened should be at least 120 degrees, and the maximum should be 175 degrees. Too small or too large is not conducive to the use of the door body of the refrigerator 100, and affects the user's experience.

[0069] As a specific embodiment of the present invention, the rotating member 227 of this embodiment is provided with a protrusion 242 at one end close to the stopper 228. The stopper 228 is provided with a groove 243 at one end close to the rotating member 227. The protrusion 242 cooperates with the groove 243, so that the rotating member 227 rotates relative to the stopper 228 within a first preset angle range.

[0070] Specifically, there can be two protrusions 242 and two grooves 243, and the positions and sizes of the protrusions 242 and the grooves 243 can be designed according to the angle requirements. When the protrusions 242 and the grooves 243 are separated, the first door body 20 can rotate relative to the second door body 30. When the second door body 30 rotates until the protrusions 242 and the grooves 243 abut, the second door body 30 can no longer rotate relative to the first door body 20.

[0071] As a specific embodiment of the present invention, the outer peripheral surface of the stopper 228 of this embodiment is provided with a protrusion 244 protruding in the radial direction of the stopper 228. The inner wall of the housing 226 is provided with a guide groove (not shown in the figure) cooperating with the protrusion 244, and the guide groove extends in a direction parallel to the axis of the stopper 228, so that the stopper 228 can move in a direction parallel to the axis under the guidance of the guide groove.

[0072] In this embodiment, the number of the protrusions 244 may be at least one, preferably two, and symmetrically arranged at the outer periphery of the stopper 228. The number of the guide grooves corresponds to the number of the protrusions 244. Since the guide grooves extend in a direction parallel to the axis, under the action of the guide grooves, when the rotating member rotates, the stopper 228 cannot rotate with the housing 226.

[0073] As a specific embodiment of the present invention, the groove portion 243 of the stopper 228 of this embodiment includes an inclined surface 245, and the inclined surface 245 extends from the bottom end of the groove portion 243 to a position close to the opening. Specifically, the number of the groove portions 243 is the same as the number of the inclined surfaces 245.

[0074] The door body assembly 200 may also include a spring 246, which abuts between the end of the stop member 228 opposite to the rotating member 227 and the inner wall of the shell 226. The spring 246 is used to be compressed when the door opening force causes the protrusion 244 of the rotating member 227 to contact the inclined surface 245 of the stop member 228, and to provide an elastic force to urge the stop member 228 to move downward when the door opening force is withdrawn, so that the rotating member 227 rotates in the opposite direction until the protrusion 242 abuts against the bottom end of the groove portion 243.

[0075] Specifically, when the second door body 30 is closed at the first door body 20, the protrusion 242 of the rotating member 227 is located at the bottom position of the groove portion 243 of the stop member 228. When the second door body 30 is gradually rotated open under the action of external force, the protrusion 242 continues to approach the inclined surface 245, and gradually moves along the inclined surface 245 from the bottom end of the groove portion 243 to the opening position, and the stop member 228 is pushed to move along the guide groove away from the rotating member 227. When the external force is removed, the stop member 228 pushes the rotating member 227 to rotate in the opposite direction under the action of the spring 246 until the protrusion 242 abuts against the bottom end of the groove portion 243.

[0076] The structure of the inclined surface 245 of the stopper 228 of the door body assembly 200 of the present embodiment can not only enable the second door body 30 of the refrigerator 100 to be stopped by the stopper 228 when opening, but also, under the action of the inclined surface 245, give the second door body 30 a reaction force when the second door body 30 is opened to a certain position, thereby preventing the second door body 30 from rotating under the action of inertia or rotating under the action of external force until the protrusion 242 directly collides with the side wall of the groove 243 and damages the protrusion 242, thereby extending the service life of the door body assembly 200. In addition, when the second door body 30 rotates until the protrusion 242 contacts the side wall of the groove portion 243 and the force applied to the second door body 30 is released, the second door body 30 can also be subjected to the elastic force of the spring 246, and the inclined surface 245 of the groove portion 243 pushes the protrusion 242 and then the stopper 228 drives the second door body 30 to rotate, thereby making the second door body 30 have a tendency to rotate, which is beneficial to the closing of the second door body 30.

[0077] As a specific embodiment of the present invention, the rotating member 227 of this embodiment is located between the connecting member 221 and the stopper 228. The housing 226 may further include a gasket 249, which is located between the bottom of the rotating member 227 and the inner wall of the bottom of the housing 226.

[0078] The gasket 249 in this embodiment can be a circular structure, which is arranged inside the housing 226, and the rotating member 227 is blocked from the inner wall of the bottom of the housing 226 by the gasket 249. The function of the gasket 249 in this embodiment can make the rotation between the rotating member 227 and the housing 226 smoother.

[0079] Specifically, the second lower hinge 230 of this embodiment includes a fixing plate 231, one end of which is connected to the box body 10, and the other end is provided with a rotating shaft 232, and a rotating shaft 232 hole for the rotating shaft 232 to pass through is provided in the first door body 20. Specifically, the fixing plate 231 is arranged below the connecting member 221 and is parallel to the connecting member 221. The connecting member 221 is provided with a stopper 223 on one side close to the fixing plate 231. Since the connecting member 221 is fixedly connected to the first door body 20, the connecting member 221 will rotate with the rotation of the first door body 20. Similarly, the stopper 223 will also rotate with the rotation of the first door body 20. The fixed plate 231 is configured to allow the stop block 223 to move when the stop block 223 follows the first door body 20 to rotate relative to the box body 10 within a second preset angle range, and to prevent the stop block 223 from moving when the stop block 223 follows the first door body 20 to rotate beyond the second preset angle range, thereby preventing the first door body 20 from moving, thereby limiting the rotation angle of the first door body 20 within the second preset angle range.

[0080] Specifically, the fixing plate 231 of the present embodiment is configured to have an outer periphery of a circular arc side edge 233 and a stop edge 234 formed continuously with the circular arc side edge 233. When the stop block 223 rotates with the first door body 20 within the second preset angle range, the stop block 223 is located on the side of the circular arc side edge 233, and when the stop block 223 rotates to operate within the second preset angle range, the stop block 223 abuts against the stop edge 234.

[0081] Specifically, the second preset angle range of this embodiment is designed according to actual conditions, and can be any value between 0-165 degrees.

[0082] Regardless of the second preset angle range, the stopping effect on the first door body 20 and the stopping effect of the rotation limiter 222 on the second door body 30 are independent of each other and do not interfere with each other. That is, no matter what angle range the first door body 20 rotates to, the second door body 30 can still rotate relative to the first door body 20 within the first angle range, thereby reducing the mutual interference between the first door body 20 and the second door body 30 and improving the user experience. As a specific embodiment of the present invention, this embodiment also provides a refrigerator 100, which includes a box body 10, a first door body 20, a second door body 30 and a door body assembly 200 thereon. The refrigerator 100 using the door body assembly 200 has a simple structure and low cost, and the rotation stops between the first door body 20 and the second door body 30 are independent of each other and do not interfere with each other.

[0083] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A door assembly for a refrigerator, the refrigerator comprising a cabinet, characterized in that: The door assembly comprises: A first door body is rotatably connected to the box body, the upper area of ​​the first door body is closed, and the lower area of ​​the first door body is defined by a door frame to form a forward opening; A second door body disposed outside the first door body, the second door body being adapted to the size of the opening and being rotatably connected to the first door body at the opening to open and close the opening; an upper hinge, comprising a rotating shaft and a first shaft hole which cooperate with each other, wherein the rotating shaft extends in a vertical direction and is arranged at the bottom of the closed area of ​​the first door body or at the top of the second door body, and the first shaft hole is arranged at the top of the second door body or at the bottom of the closed area of ​​the first door body; and a first lower hinge, disposed between a bottom surface of the second door body and a bottom surface of the door frame; Wherein, the upper hinge and the first lower hinge are used to jointly realize the rotation connection between the second door body and the first door body; It also includes a second lower hinge, located at the bottom surface of the door frame, for rotatably connecting the first door body to the box body; The first lower hinge includes a connecting piece, which is fixedly connected to the bottom surface of the door frame and has a rotation limit piece extending from the side close to the second door body. The rotation limit piece is rotatably connected to the second door body and is used to enable the second door body to rotate relative to the first door body within a first preset angle range; the connecting piece is provided with a stop block at the side away from the second door body, and the stop block cooperates with the second lower hinge to enable the first door body to rotate relative to the box body within a second preset angle range.

2. The door assembly for a refrigerator according to claim 1, characterized in that: The upper end surface of the door frame is located at a middle position in the height direction of the first door body.

3. The door assembly for a refrigerator according to claim 2, characterized in that: A second shaft hole is provided inside the lower end of the second door body; The rotation limiting member comprises: a hinge shaft connected to an end of the connecting member away from the door frame and extending toward the interior of the second door body; and A stop assembly is arranged at the second shaft hole, and the stop assembly cooperates with the hinge shaft to enable the second door body to rotate relative to the first door body within the first preset angle range.

4. The door assembly for a refrigerator according to claim 3, characterized in that: The stopper assembly comprises: a housing connected to the second door body; A rotating member disposed in the housing cooperates with the hinge shaft to rotate synchronously with the hinge shaft; and The stopper disposed in the shell is located on the side of one end of the rotating member in the axial direction and is anti-rotationally connected to the shell, and is used to make the rotating member rotate relative to the stopper within the first preset angle range when the rotating member rotates.

5. The door assembly for a refrigerator according to claim 4, characterized in that: The rotating member is provided with a protrusion at one end close to the stopper; The stopper is provided with a groove portion at one end close to the rotating member; Wherein, the protrusion cooperates with the groove portion so that the rotating member rotates relative to the stop member within the first preset angle range.

6. The door assembly for a refrigerator according to claim 5, characterized in that: The outer peripheral surface of the stopper is provided with a protrusion protruding outward in the radial direction of the stopper; The inner side wall of the shell is provided with a guide groove cooperating with the protrusion, and the guide groove extends in a direction parallel to the axis of the stopper, so that the stopper can translate in a direction parallel to the axis under the guidance of the guide groove.

7. The door assembly for a refrigerator according to claim 6, characterized in that: The groove portion of the stopper comprises an inclined surface, and the inclined surface extends from the bottom end of the groove portion to a position close to the opening; The door body assembly also includes a spring, which abuts between the end of the stopper opposite to the rotating member and the inner wall of the shell. The spring is used to be compressed when the door opening force causes the protrusion of the rotating member to contact the inclined surface of the stopper, and to provide an elastic force to urge the stopper to move downward when the door opening force is cancelled, so that the rotating member rotates in the opposite direction until the protrusion abuts against the bottom end of the groove.

8. The door assembly for a refrigerator according to claim 7, characterized in that: The rotating member is located between the connecting member and the stopping member; The stopper assembly further comprises a gasket, which is arranged in the housing and located between the bottom of the rotating member and the inner wall of the bottom of the housing.

9. A refrigerator, characterized in that: The invention comprises the door assembly according to any one of claims 1 to 8.

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