Refrigerator

Abstract

The embodiment of the invention provides a refrigerator, belongs to the technical field of household appliances, and aims to solve the technical problems that in the related technology, a gap is likely to occur between a door body and a refrigerator body, and the sealing performance of a containing cavity is poor. The refrigerator comprises a refrigerator body, a door body and a gravity self-closing structure, wherein the door body is rotatably arranged on the refrigerator body; the gravity self-closing structure comprises a fixed part and a movable part which are matched with each other, the movable part is provided with a first track groove and a second track groove, the first track groove is provided with a first inflection point, and the second track groove is provided with a second inflection point; the fixed part is provided with a first contact part and an inclined part, the first end of the inclined part is connected with the first contact part, the second end of the inclined part is inclined downwards, the movable part is provided with an abutting part, and the abutting part sequentially faces the first contact part and the inclined part in the rotating closing process of the door body. According to the refrigerator, the gap between the door body and the refrigerator body can be reduced, and the sealing performance of the containing cavity is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and in particular to a refrigerator. Background Art

[0002] A refrigerator is a common household appliance that can keep food or other items at a constant low temperature. The refrigerator includes a box body and a door body. The box body is formed with a receiving cavity for receiving food or other items. The door body can be movably arranged on the box body so as to close or open the receiving cavity through the door body. However, when the door body is closed to close the receiving cavity, a gap is likely to appear between the door body and the box body, and the sealing performance of the receiving cavity is poor. Summary of the invention

[0003] The embodiment of the present application provides a refrigerator that can solve the technical problems of gaps easily appearing between the door body and the box body and poor sealing of the accommodating cavity.

[0004] In a first aspect, an embodiment of the present application provides a refrigerator, comprising:

[0005] A box body, wherein the box body is formed with a receiving cavity;

[0006] A door body, the door body can be rotatably arranged on the box body to close or open the accommodating cavity;

[0007] A gravity self-closing structure is arranged at the lower end of the door body, and the gravity self-closing structure includes a matching fixed part and a movable part, the fixed part is fixedly arranged on the box body, and the movable part is fixedly arranged on the door body;

[0008] The movable member is provided with a first track groove and a second track groove, both of which are oriented toward the fixed member, and the movable member is further provided with an abutment portion, which is oriented toward the fixed member;

[0009] The fixing member is provided with a first hinge shaft and a second hinge shaft; the first hinge shaft is relatively movable and arranged in the first track groove, and the second hinge shaft is relatively movable and arranged in the second track groove;

[0010] The fixing member also has a first contact portion and an inclined portion connected to each other, wherein the first end of the inclined portion is connected to the first contact portion, and the second end of the inclined portion is inclined downward; during the process of the door body rotating and closing, the abutting portion faces the first contact portion and the inclined portion in turn.

[0011] In the refrigerator of the embodiment of the present application, since the door body has a certain gravity, during the process of rotating and opening the door body, it is necessary to overcome the gravity of the door body so that the door body can drive the abutting part to move from the second end of the inclined part to the first end of the inclined part, thereby limiting the abutting part to a certain extent through the inclined part, reducing the possibility of movement of the abutting part; and, during the process of rotating and closing the door body, when the abutting part abuts against the inclined part, the abutting part can move toward the second end of the inclined part under the action of the gravity of the door, thereby making the process of the door body moving from the inclined part to the second contact part more convenient. Moreover, when the door body is closed to seal the accommodating cavity, the possibility of a gap between the door body and the box body can be reduced, thereby improving the sealing of the accommodating cavity.

[0012] In a second aspect, an embodiment of the present application provides a refrigerator, comprising a box body, a door body, and a gravity self-closing structure, wherein the door body is used to close or open a receiving cavity of the box body; the opening angle of the door body relative to the box body has a first setting angle, a second setting angle, and a third setting angle that decrease in sequence;

[0013] The gravity self-closing structure is arranged at the lower end of the door body, and the gravity self-closing structure comprises a fixed part and a movable part, the fixed part is arranged on the box body, and the movable part is arranged on the door body; the movable part is provided with a first track groove and a second track groove facing the fixed part; the fixed part is provided with a first hinge shaft and a second hinge shaft, the first hinge shaft can be relatively movably arranged in the first track groove, and the second hinge shaft can be relatively movably arranged in the second track groove;

[0014] The fixing member further comprises a first contact portion and an inclined portion connected to each other, wherein a first end of the inclined portion is connected to the first contact portion, and a second end of the inclined portion is inclined downward; the movable member is provided with an abutting portion, and the abutting portion faces the fixing member;

[0015] During the process of the door body rotating and closing from the first setting angle to the second setting angle, the abutting portion moves from an end of the first contact portion away from the inclined portion to a first end of the inclined portion;

[0016] During the process of the door body rotating and closing from the second setting angle to the third setting angle, the abutting portion moves obliquely downward from the first end of the inclined portion to the second end of the inclined portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0018] Figure 1 It is a structural schematic diagram of a hinge structure when an upper matching piece and a lower matching piece are fitted together in the related art;

[0019] Figure 2 It is a structural schematic diagram of a hinge structure when an upper matching piece and a lower matching piece form an angle in the related art;

[0020] Figure 3 It is a structural schematic diagram of a movable part in a gravity self-closing structure in the related art;

[0021] Figure 4 It is a structural schematic diagram of a fixing member in a gravity self-closing structure in the related art;

[0022] Figure 5 It is a structural schematic diagram of a fixing member after a part of the groove is filled in the gravity self-closing structure in the related art;

[0023] Figure 6 A three-dimensional diagram of a refrigerator according to an embodiment of the present application;

[0024] Figure 7 A top view of a refrigerator according to an embodiment of the present application;

[0025] Figure 8 A schematic diagram of the installation position of the gravity self-closing structure of the refrigerator according to an embodiment of the present application;

[0026] Fig. 9 A schematic diagram of the structure of the gravity self-closing structure of the refrigerator according to an embodiment of the present application;

[0027] Fig.10 A schematic structural diagram of a gravity self-closing structure of a refrigerator from another perspective of an embodiment of the present application;

[0028] Fig.11 A schematic diagram of a hinge assembly located at the upper end of a door body of a refrigerator according to an embodiment of the present application;

[0029] Fig.12 This is a schematic structural diagram of fixed parts and movable parts in a gravity self-closing structure of a refrigerator according to another embodiment of the present application;

[0030] Fig.13 It is a structural schematic diagram of the fixed part and the movable part when the abutting part abuts against the first contact part in the gravity self-closing structure of the refrigerator according to the embodiment of the present application;

[0031] Fig.14 It is a structural schematic diagram of a fixed part and a movable part when the abutting part abuts against the inclined part in the gravity self-closing structure of the refrigerator according to an embodiment of the present application;

[0032] Fig.15It is a structural schematic diagram of the fixed part and the movable part when the abutting part abuts against the second contact part in the gravity self-closing structure of the refrigerator according to the embodiment of the present application;

[0033] Fig.16 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door opening angle is a first set angle in the gravity self-closing structure of the refrigerator in the embodiment of the present application;

[0034] Fig.17 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door opening angle is a second set angle in the gravity self-closing structure of the refrigerator in the embodiment of the present application;

[0035] Fig.18 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door opening angle is a third set angle in the gravity self-closing structure of the refrigerator in the embodiment of the present application;

[0036] Fig.19 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door body is attached to the box body in the gravity self-closing structure of the refrigerator in the embodiment of the present application;

[0037] Fig. 20 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door opening angle is a first set angle in the gravity self-closing structure of the refrigerator according to another embodiment of the present application;

[0038] Fig.21 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door opening angle is a second set angle in the gravity self-closing structure of the refrigerator according to another embodiment of the present application;

[0039] Fig. 22 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door opening angle is a third set angle in the gravity self-closing structure of the refrigerator according to another embodiment of the present application;

[0040] Fig.23 This is a schematic diagram of the relative positions of the positioning center axis and the guide center axis when the door body is attached to the box body in the gravity self-closing structure of the refrigerator according to another embodiment of the present application;

[0041] Fig.24 This is a schematic diagram of the structure of the lock hook and the stopper of the refrigerator in the embodiment of the present application;

[0042] Fig.25 This is a schematic diagram of the structure of the lock hook and movable parts of the refrigerator in the embodiment of the present application;

[0043] Fig.26 It is a structural schematic diagram of a fixing member having a second contact portion in the gravity self-closing structure of a refrigerator according to an embodiment of the present application;

[0044] Fig. 27 This is a schematic structural diagram of a fixing member in a gravity self-closing structure of a refrigerator according to an embodiment of the present application;

[0045] Fig.28 This is a schematic structural diagram of a fixing member in a gravity self-closing structure of a refrigerator according to another embodiment of the present application;

[0046] Fig.29 It is a structural schematic diagram of the movable parts in the gravity self-closing structure of the refrigerator in the embodiment of the present application;

[0047] Fig.30 This is a schematic structural diagram of movable parts in a gravity self-closing structure of a refrigerator according to another implementation mode of the present application;

[0048] Fig.31 It is a structural schematic diagram of a movable part having multiple abutment parts in the gravity self-closing structure of the refrigerator according to an embodiment of the present application;

[0049] Fig.32 It is a structural schematic diagram of a movable part having multiple abutment parts in the gravity self-closing structure of the refrigerator according to an embodiment of the present application;

[0050] Fig.33 It is a structural schematic diagram of a movable part in another implementation manner of the gravity self-closing structure of the refrigerator of the embodiment of the present application;

[0051] Fig.34 It is a structural schematic diagram of a movable part in another implementation manner of the gravity self-closing structure of the refrigerator of the embodiment of the present application;

[0052] Fig.35 A schematic structural diagram of a movable part with a ball in a gravity self-closing structure of a refrigerator according to an embodiment of the present application;

[0053] Fig.36 It is a structural schematic diagram of a movable part with a roller in the gravity self-closing structure of a refrigerator according to an embodiment of the present application;

[0054] Fig.37 It is a structural schematic diagram of a roller-type movable part in the gravity self-closing structure of the refrigerator in an embodiment of the present application;

[0055] Fig.38 It is a schematic diagram of the structure in which a fixing member in the gravity self-closing structure of a refrigerator according to an embodiment of the present application is installed on a hinge plate;

[0056] Fig.39 A schematic diagram of the structure of the gravity self-closing structure adjusting member of the refrigerator according to the embodiment of the present application for adjusting the height of the fixing member;

[0057] Fig.40 A schematic diagram of the structure of an adjustment plate in the gravity self-closing structure of a refrigerator according to an embodiment of the present application;

[0058] Fig.41 This is a schematic structural diagram of the adjustment plate and the adjustment member in the gravity self-closing structure of the refrigerator according to an embodiment of the present application. DETAILED DESCRIPTION

[0059] In the related art, a refrigerator includes a box body and a door body, wherein the box body is formed with a receiving cavity for receiving food or other items, and the door body is movably arranged on the box body so as to close or open the receiving cavity through the door body. For example, the door body can be rotatably arranged on the box body through a rotating structure, and when the door body is attached to the box body, the door body closes the receiving cavity, and when an angle is formed between the door body and the box body, the door body opens the receiving cavity so as to take out or put in food or other items through the receiving cavity.

[0060] When the door body is rotated to close the accommodating cavity through the door body, the door body moves toward the accommodating cavity. When the door body fits against the surface of the box body, due to the influence of the air pressure change in the accommodating cavity, the door body is easily bounced off the surface of the box body, so that a gap is formed between the door body and the surface of the box body, thereby affecting the sealing of the accommodating cavity.

[0061] Exemplarily, the hinge structure that can be applied to the opening and closing of the door body is used as an example to describe the rotating structure of the door body. Figure 1 and Figure 2 The hinge structure may include a pivot 1, and an upper mating piece 2 and a lower mating piece 3 that cooperate with each other, wherein the upper mating piece 2 and the lower mating piece 3 are both provided with inclined slopes; in the process of adjusting the upper mating piece 2 and the lower mating piece 3 of the hinge structure to close the door body, the lower mating piece 3 is relatively fixed to the pivot 1, the upper mating piece 2 rotates around the pivot 1, and the upper mating piece 2 can move from the top end of the inclined surface of the lower mating piece 3 to the bottom end of the inclined surface of the lower mating piece 3; in the process of adjusting the upper mating piece 2 and the lower mating piece 3 of the hinge structure to open the door body, the lower mating piece 3 is relatively fixed to the pivot 1, the upper mating piece 2 rotates around the pivot 1, and the upper mating piece 2 can move from the bottom end of the inclined surface of the lower mating piece 3 to the top end of the inclined surface of the lower mating piece 3.

[0062] It is easy to understand that in the process of opening the door body, the upper mating part 2 rotates around the pivot 1, and the upper mating part 2 needs to overcome gravity and move from the bottom end of the inclined surface of the lower mating part 3 to the top end of the inclined surface of the lower mating part 3, so that the process of opening the door body is more laborious, thereby making the closed state of the door body tighter; when the above-mentioned hinge structure is applied to the rotating structure of the refrigerator, the upper mating parts 2 of the hinge structure can be connected to the door body of the refrigerator, the lower mating part 3 of the hinge structure is connected to the refrigerator body, and the pivot 1 of the hinge structure is reused to form the rotating axis of the refrigerator door body, so that the refrigerator door body can rotate around the pivot 1 of the hinge structure relative to the body to realize the opening and closing of the door body, and can reduce the gap between the door body and the body, and improve the sealing of the accommodating cavity.

[0063] Although the above-mentioned hinge structure can cleverly reduce the gap between the door body and the box body through the mutual cooperation of the upper mating parts and the lower mating parts; however, when the refrigerator is set as a built-in refrigerator, the built-in refrigerator is usually provided with at least two rotating shafts, and in the process of opening and closing the door body of the built-in refrigerator, the door body does not rotate around a single rotating shaft, but the rotation process of the door body is realized by the mutual cooperation of at least two rotating shafts, which makes the above-mentioned hinge structure unable to be used to form the rotating structure of the built-in refrigerator, and the pivot of the hinge structure naturally cannot be used to form the rotating shaft of the built-in refrigerator.

[0064] Reference Figure 3 and Figure 4 In the built-in refrigerator 1, the refrigerator 1 may include a gravity self-closing structure, which includes a matching fixed part 300 and a movable part 400, the movable part 400 is provided with a first track groove 140 and a second track groove 150, the fixed part 300 is correspondingly provided with a first hinge shaft 160 and a second hinge shaft 170, the first hinge shaft 160 can be relatively movably arranged in the first track groove 140, and the second hinge shaft 170 can be relatively movably arranged in the second track groove 150; the fixed part 300 is provided with a groove, and the groove is provided with a first inclined portion 301 and a second inclined portion 302 connected to each other, the second end of the first inclined portion 301 is inclined upward, and the second end of the second inclined portion 302 is inclined downward, and the movable part 400 is provided with a butt portion 410, and the butt portion 410 is used to butt against the first inclined portion 301 and the second inclined portion 302.

[0065] By setting the gravity self-closing structure, during the process of the door body 30 rotating and closing, the first hinge shaft 160 can be relatively movably arranged in the first track groove 140, and the second hinge shaft 170 can be relatively movably arranged in the second track groove 150, and the abutting portion 410 can move from the surface of the fixing member 300 to the first end of the first inclined portion 301, and move along the first end of the first inclined portion 301 to the second end of the first inclined portion 301, and the movable member 400 drives the door body 30 to move upward through the abutting portion 410; and the abutting portion 410 moves from the first inclined portion 301 to the second end of the first inclined portion 301. The second end of the first inclined portion 301 moves to the first end of the second inclined portion 302, and moves along the first end of the second inclined portion 302 to the second end of the second inclined portion 302, and the movable member 400 drives the door body 30 to move downward through the abutting portion 410, so that the abutting portion 410 can move from the second end of the second inclined portion 302 to the surface of the fixed member 300 facing the movable member 400, so that the abutting portion 410 can move from the side of the first inclined portion 301 away from the second inclined portion 302 to the side of the second inclined portion 302 away from the first inclined portion 301;

[0066] The door body 30 has a certain gravity. During the process of rotating and opening the door body 30, it is necessary to overcome the gravity of the door body 30 so that the door body 30 can drive the abutment part 410 to move from the second end of the second inclined part 302 to the first end of the second inclined part 302, thereby limiting the abutment part 410 to a certain extent through the second inclined part 302, reducing the possibility of movement of the abutment part 410; during the process of rotating and closing the door body 30, when the abutment part 410 abuts against the second inclined part 302, the abutment part 410 can move toward the second end of the second inclined part 302 under the action of the gravity of the door body 30, thereby making the process of the door body 30 moving to the side of the second inclined part 302 away from the first inclined part 301 more convenient.

[0067] It is easy to understand that although the problem of the sealing of the refrigerator 1 accommodating cavity can be solved by setting the above-mentioned gravity self-closing structure, during the rotation opening and rotation closing of the door body 30 of the above-mentioned refrigerator 1, the door body 30 not only needs to complete the rotation process in the horizontal direction, but also needs to move upward in the vertical direction and then move downward in the vertical direction under the drive of the movable part 400. The door body 30 is prone to produce a certain oscillation, which makes the user easily feel a certain sense of frustration, affecting the user's experience.

[0068] Furthermore, during the rotational opening and closing of the refrigerator door 30, since the door 30 not only needs to complete the rotation process in the horizontal direction but also needs to complete the movement process in the vertical direction, the first hinge shaft 160 and the second hinge shaft 170 need to bear the force component from the horizontal direction and the force component from the vertical direction to drive the door 30 to realize the above-mentioned movement process; and in order to ensure the gravity self-closing effect of the refrigerator door 30, the gravity of the refrigerator door 30 is usually large, which also aggravates the burden on the first hinge shaft 160 and the second hinge shaft 170 to a certain extent, making the first hinge shaft 160 and the second hinge shaft 170 more prone to bending and deformation, thereby affecting the normal use of the door 30.

[0069] In view of this, the inventors have discovered through research that when the door body is in a closed state, the abutment portion is arranged on the surface of the second inclined portion, or the abutment portion is arranged on the side of the second inclined portion away from the first inclined portion, so as to reduce the possibility of the abutment portion moving toward the first inclined portion through the second inclined portion inclined downward, that is, the second inclined portion is an important structure that affects the gravity self-closing effect of the door; and although the provision of the first inclined portion can ensure that the height of the door body on the side of the first inclined portion away from the second inclined portion is flush with the height of the door body on the side of the second inclined portion away from the first inclined portion, so that the door body can maintain the same height during most of the process of rotating to open or rotate to close, the first inclined portion will not affect the gravity self-closing effect of the door body.

[0070] Reference Figure 4 and Figure 5It can be seen that part of the groove above the first inclined portion can be filled to remove the first inclined portion, so that the abutment portion of the movable part can move directly through the surface of the fixed part to the surface of the second inclined portion, so that the door body has only an upward movement during the rotation opening process, and the door body has only a downward movement during the rotation closing process, so as to reduce the force on the first hinge axis and the second hinge axis in the vertical direction and reduce the burden on the first hinge axis and the second hinge axis.

[0071] Compared with the method of setting the first inclined portion and the second inclined portion, "filling" the partial depression corresponding to the first inclined portion can not only retain the downward inclined surface of the second inclined portion to ensure the self-closing effect of the gravity self-closing structure, but also eliminate the upward inclined movement process of the door body during the rotational closing process, and only retain the downward inclined movement process of the door body during the rotational closing process, thereby reducing the force on the first hinge axis and the second hinge axis in the vertical direction, and reducing the burden on the first hinge axis and the second hinge axis.

[0072] Specifically, the refrigerator may include a gravity self-closing structure, which includes a matching fixed part and a movable part, the movable part is provided with a first track groove and a second track groove, the fixed part is correspondingly provided with a first hinge axis and a second hinge axis, the first hinge axis can be relatively movably arranged in the first track groove, and the second hinge axis can be relatively movably arranged in the second track groove; the fixed part is provided with a first contact portion and an inclined portion connected to each other, the first end of the inclined portion is connected to the first contact portion, and the second end of the inclined portion is inclined downward, and the movable part is provided with an abutting portion, and the abutting portion is used to abut the first contact portion and the inclined portion.

[0073] By setting up a gravity self-closing structure, during the process of the door body rotating and closing, the first hinge shaft can be relatively movable in the first track groove, the second hinge shaft can be relatively movable in the second track groove, and the abutment portion can move from the first contact portion to the first end of the inclined portion, and move obliquely downward from the first end of the inclined portion to the second end of the inclined portion, so as to realize the closing process of the door body.

[0074] Since the door body has a certain gravity, during the process of rotating and opening the door body, the gravity of the door body needs to be overcome so that the door body can drive the abutting part to move from the second end of the inclined part to the first end of the inclined part, thereby limiting the abutting part to a certain extent through the inclined part, thereby reducing the possibility of movement of the abutting part; and, during the process of rotating and closing the door body, when the abutting part abuts against the inclined part, the abutting part can move toward the second end of the inclined part under the action of the gravity of the door body; when the door body is closed to seal the accommodating cavity, the possibility of a gap between the door body and the box body can be reduced, thereby improving the sealing of the accommodating cavity.

[0075] It should be noted that the refrigerator in the embodiment of the present application does not need to be provided with a first inclined portion inclined upward, but is provided with an inclined portion inclined downward, so that the downward inclined portion and the abutment portion can cooperate with each other to ensure the gravity self-closing effect of the door body, and the upward movement process of the door body during the rotation and closing process can be eliminated, thereby reducing the force on the first hinge shaft and the second hinge shaft in the vertical direction and reducing the burden on the first hinge shaft and the second hinge shaft.

[0076] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0077] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0078] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0079] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0080] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0081] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0082] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0083] In a first aspect, an embodiment of the present application provides a refrigerator, referring to Figure 6 and Figure 7 The refrigerator 1 includes a housing 10 having a receiving cavity, a door 30 connected to the housing 10 to open and close the receiving cavity, and a refrigeration device for supplying cold air to the receiving cavity. The housing 10 includes an inner liner defining the receiving cavity, an outer shell connected to the outer side of the inner liner to form the appearance of the refrigerator, and an insulating layer provided between the inner liner and the outer shell to insulate the receiving cavity.

[0084] The box body 10 defines a plurality of accommodating chambers. In this embodiment, the plurality of accommodating chambers may include a refrigerating chamber and a freezing chamber located below the refrigerating chamber. It should be noted that the types and arrangements of the plurality of accommodating chambers of the refrigerator 1 are not limited thereto.

[0085] A take-in / take-out opening is formed at the front end of the accommodating cavity, through which a user can place food into the accommodating cavity or take food out of the accommodating cavity. A rotatable door body 30 is provided on the box body 10 to open or close the take-in / take-out opening of the accommodating cavity. For example, the door body 30 is rotatably connected to the box body 10 by a hinge assembly located at the upper part of the refrigerator 1 and a hinge assembly located at the lower part of the refrigerator 1.

[0086] The box body 10 includes a first side wall (ie, one of the left and right walls of the box body 10) and a second side wall (ie, the other of the left and right walls of the box body 10) that are oppositely disposed. The hinge assembly is disposed on the box body 10 and is close to the first side wall.

[0087] The door body 30 has a door front wall 31 away from the box body 10 when the door body 30 is closed, a door rear wall arranged opposite to the door front wall 31, and a door side wall 32 close to the hinge assembly and connected to the door front wall 31. For example, when the hinge assembly is located on the right side of the box body 10, the right side wall of the door body 30 is the door side wall 32. When the hinge assembly is located on the left side of the box body 10, the left side wall of the door body 30 is the door side wall 32.

[0088] The front wall 31 and the side wall 32 of the door body 30 intersect to form a first side edge W, and the side wall 32 and the rear wall intersect to form a second side edge N. When the door body 30 is closed, the first side edge W is located on the side of the second side edge N away from the box body 10 .

[0089] It should be noted that when both the door front wall 31 and the door side wall 32 are flat wall surfaces, the intersection line of the plane where the door front wall 31 is located and the plane where the door side wall 32 is located is the theoretical first side edge W. The setting of the rounded transition at the intersection of the door front wall 31 and the door side wall 32 forms a first side edge W along the height direction of the door body 30 (i.e., Figure 1 A surface extending in the up and down directions (as shown in FIG. 1 ).

[0090] For ease of description, any straight line on the curved surface extending in the height direction of the door body 30 represents the first side edge W. Similarly, the rounded transition setting at the intersection of the door rear wall and the door side wall 32 can represent the second side edge N by the intersection line of the planes where the door rear wall and the door side wall 32 are located, or by a straight line close to and parallel to the intersection line.

[0091] Reference Figure 3-Figure 6 A door seal is provided on the rear wall of the door body 30. When the door body 30 is closed, the door seal surrounds the access opening and fits with the front end surface of the box body 10 to effectively seal the connection between the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the access opening to prevent cold air from escaping. For example, the door seal can be ring-shaped.

[0092] For example, the upper and lower ends of the door body 30 may be provided with a hinge assembly 130, and the hinge assembly 130 may include a hinge plate 131 connected to the upper end of the box body 110, a first hinge shaft 160 and a second hinge shaft 170, and a limited shaft connected to the hinge plate 131 to form a guide for the movement of the door body 30. The hinge plate 131, the first hinge shaft 160 and the second hinge shaft 170 may be formed integrally, or may be provided separately and assembled with each other.

[0093] Corresponding to the position of the hinge plate 131, the upper and lower ends of the door body 30 are provided with a first track groove 140 and a second track groove 150. For example, the positions of the two first track grooves 140 at the upper and lower ends of the door body 30 in the height direction of the refrigerator correspond, and the positions of the two second track grooves 150 in the height direction of the refrigerator correspond, so that the movement of the upper and lower ends of the door body 30 is consistent, so that the door body 30 can be opened or closed more smoothly.

[0094] Reference Figure 8-Figure 10 In some embodiments, the refrigerator further comprises a gravity self-closing structure, which can be arranged at the lower end of the door body 30, and the gravity self-closing structure can include a matching fixed part 300 and a movable part 400, wherein the fixed part 300 can be fixedly arranged on the box body 110, the movable part 400 can be fixedly arranged on the door body 30, the movable part 400 and the fixed part 300 can be arranged in a vertical direction, and the hinge assembly 130 located at the lower end of the door body 30 can be reused to form at least one of the fixed part 300 and the movable part 400, so as to make the formation process of the gravity self-closing structure more convenient. Alternatively, the fixed part 300 can also be fixedly arranged on the door body 30, and the movable part 400 can be fixed on the box body 110.

[0095] When the door body 30 is rotated and closed to a closed state, the door body 30 can move toward the box body 110 through the gravity self-closing structure, and the door body 30 can move in the vertical direction relative to the fixed part 300 under the drive of the movable part 400, so that the door body 30 can abut against the box body 110; and, when it is necessary to rotate and open the door body 30, it is necessary to overcome the gravity of the door body 30 to separate the door body 30 from the box body 10, so that the gap between the door body 30 and the box body 110 can be reduced when the door body 30 is in a closed state, thereby improving the sealing of the accommodating cavity.

[0096] For example, the refrigerator can be configured as a side-by-side refrigerator, and the number of door bodies 30 of the side-by-side refrigerator is set to two, so as to seal multiple accommodating cavities through the two door bodies 30; compared with other types of refrigerators such as cross-door refrigerators, the height of the door body 30 of the side-by-side refrigerator is higher, and the weight of the door body 30 of the side-by-side refrigerator is larger, so that the door body 30 of the side-by-side refrigerator has a better gravity self-closing effect through the gravity self-closing structure, thereby increasing the gravity that needs to be overcome when rotating the door body 30 to open.

[0097] It should be noted that the gap between the door body 30 and the box body 110 can also be reduced by providing a suction aid or other structure between the door body 30 and the box body 10. However, compared with other types of refrigerators such as cross-door refrigerators, the door body 30 of a side-by-side refrigerator is heavier, and a side-by-side refrigerator usually cannot achieve a tight seal between the door body 30 and the box body 10 only by a suction aid. This also makes the gravity self-closing structure more suitable for refrigerators such as side-by-side refrigerators with heavy door bodies 30 or other types of refrigerators where the door bodies 30 can bear a larger weight, so as to further improve the sealing effect of the door body 30 on the accommodating cavity.

[0098] In some embodiments, the height of the door body 30 can be set to be greater than or equal to 1700 mm and less than or equal to 2000 mm. For example, the height of the door body 30 can be set within any height range of 1700 mm-1750 mm, 1750 mm-1800 mm, 1800 mm-1850 mm, 1850 mm-1900 mm, 1900 mm-1950 mm, and 1950 mm-2000 mm.

[0099] It is easy to understand that the height of the door body 30 will affect the gravity of the door body 30. For example, when parameters such as the material and thickness of the door body 30 remain consistent, the higher the height of the door body 30, the heavier the weight of the door body 30, and the better the gravity self-closing effect of the door body 30 through the gravity self-closing structure; and, when the distance moved in the vertical direction during the rotation closing or rotation opening of the door body 30 remains consistent, the higher the height of the door body 30, the lower the ratio of the distance moved in the vertical direction to the height of the door body 30, and the user's sense of frustration during the rotation closing or rotation opening of the door body 30 is correspondingly reduced.

[0100] Any of the above-mentioned height ranges may include at least one of the two endpoint values. For example, when the height of the door body 30 is set within the height range of 1700 mm-1750 mm, the height of the door body 30 may be greater than or equal to 1700 mm and less than or equal to 1750 mm; or, the height of the door body 30 may also be greater than 1700 mm and less than or equal to 1750 mm; or, the height of the door body 30 may be greater than or equal to 1700 mm and less than 1750 mm;

[0101] Alternatively, any of the above-mentioned height ranges may not include the two endpoint values. For example, when the height of the door body 30 is set within the height range of 1700 mm to 1750 mm, the height of the door body 30 may also be set to be greater than 1700 mm and less than 1750 mm.

[0102] It should be noted that the various numerical ranges appearing in the embodiments of the present application, such as the thickness range or weight range that appears later, can all refer to the height range, that is, the numerical range can include at least one of the two endpoint values, or the numerical range may not include the two endpoint values. The embodiments of the present application will not be described in detail later.

[0103] In some embodiments, the thickness of the door body 30 can be set to be greater than or equal to 45 mm and less than or equal to 65 mm. For example, the thickness of the door body 30 can be set within any height range of 45 mm-48 mm, 48 mm-50 mm, 50 mm-52 mm, 52 mm-55 mm, 55 mm-58 mm, 58 mm-60 mm, 60 mm-62 mm, and 62 mm-65 mm.

[0104] It is easy to understand that the thickness of the door body 30 will affect the gravity of the door body 30. For example, when parameters such as the material and height of the door body 30 remain consistent, the higher the thickness of the door body 30 and the heavier the door body 30, the better the gravity self-closing effect of the door body 30 through the gravity self-closing structure.

[0105] The weight of the door body 30 can be set to be less than or equal to 10 kg. For example, the weight of the door body 30 can be set to any weight range of 5 kg-6 kg, 6 kg-7 kg, 7 kg-8 kg, 8 kg-9 kg, and 9 kg-10 kg. It is easy to understand that during the use of the refrigerator, the door body 30 can be used to carry items of a certain weight, thereby increasing the total weight of the door body 30 and improving the gravity self-closing effect of the door body 30.

[0106] Alternatively, the weight of the door body 30 can also be set to be greater than or equal to 10 kg and less than or equal to 30 kg. For example, the weight of the door body 30 can be set within any weight range of 10 kg-15 kg, 15 kg-20 kg, 20 kg-25 kg, and 25 kg-30 kg, so that the gravity of the door body 30 can make the connection between the door body 30 and the box body 110 tighter.

[0107] For example, the surface of the fixed part 300 facing the movable part 400 may be provided with a first contact portion 310 and an inclined portion 320 that are connected to each other, wherein the first contact portion 310 may be arranged parallel to the horizontal plane, or the first contact portion 310 may also be arranged obliquely to the horizontal plane, for example, the end of the first contact portion 310 facing away from the inclined portion 320 may be inclined upward or downward; the first end of the inclined portion 320 is connected to the first contact portion 310, the second end of the inclined portion 320 is connected to the second contact portion 330, the first end of the inclined portion 320 is higher than the second end of the inclined portion 320, and the inclination angle of the inclined portion 320 is greater than the inclination angle of the first contact portion 320.

[0108] A contact portion 410 may be provided on the surface of the movable part 400 facing the fixed part 300. During the process of rotating and opening the door body 30, the contact portion 410 can move obliquely upward from the second end of the inclined portion 320 to the first end of the inclined portion 320, and then move to the first contact portion 310 through the first end of the inclined portion 320, thereby realizing the opening process of the door body 30.

[0109] During the process of rotating and closing the door body 30 , the abutment portion 410 can move from the first contact portion 310 to the first end of the inclined portion 320 , and then move obliquely downward from the first end of the inclined portion 320 to the second end of the inclined portion 320 , thereby realizing the closing process of the door body 30 .

[0110] Alternatively, the surface of the fixed member 300 facing the movable member 400 may also be provided with a first contact portion 310, an inclined portion 320, and a second contact portion 330 connected in sequence, wherein the first end of the inclined portion 320 is connected to the first contact portion 310, the second end of the inclined portion 320 is connected to the second contact portion 330, the first end of the inclined portion 320 is higher than the second end of the inclined portion 320, and the first contact portion 310 is closer to the movable member 400 than the second contact portion 330;

[0111] At least one of the first contact portion 310 and the second contact portion 330 may be arranged in parallel to the horizontal plane, for example, both the first contact portion 310 and the second contact portion 330 are arranged in parallel to the horizontal plane, or one of the first contact portion 310 and the second contact portion 330 is arranged in parallel to the horizontal plane, and the other of the first contact portion 310 and the second contact portion 330 is arranged at an angle.

[0112] For example, the end of the first contact portion 310 away from the inclined portion 320 may be inclined upward or downward, the inclination angle of the first contact portion 310 may be greater than the inclination angle of the inclined portion 320, or the inclination angle of the first contact portion 310 may be smaller than the inclination angle of the inclined portion 320, and the second contact portion 330 may be arranged parallel to the horizontal plane;

[0113] The first contact portion 310 may be arranged parallel to the horizontal plane; the end of the second contact portion 330 away from the inclined portion 320 may be inclined upward or downward, and the inclination angle of the second contact portion 330 may be greater than the inclination angle of the inclined portion 320, or the inclination angle of the second contact portion 330 may be smaller than the inclination angle of the inclined portion 320;

[0114] Alternatively, the end of the first contact portion 310 away from the inclined portion 320 can be tilted upward or downward, and the inclination angle of the first contact portion 310 can be greater than or less than the inclination angle of the inclined portion 320; the end of the second contact portion 330 away from the inclined portion 320 can be tilted upward or downward, and the inclination angle of the second contact portion 330 can be greater than or less than the inclination angle of the inclined portion 320.

[0115] In some embodiments, the surface of the movable member 400 facing the fixed member 300 may be provided with an abutment portion 410, and the abutment portion 410 may be used to abut the first contact portion 310, the inclined portion 320, and the second contact portion 330. It is set to 0 degrees, that is, when the door body 30 is in a closed state, the bottom of the abutting portion 410 abuts against the second contact portion 330 .

[0116] It should be noted that when the refrigerator is set as a double-door refrigerator, during the process of the door body 30 rotating to open or rotate to close, the door body 30 needs to move in the horizontal direction, and the door body 30 needs to move in the vertical direction relative to the fixed part 300 under the drive of the movable part 400; so that the first hinge shaft 160 and the second hinge shaft 170 in the gravity self-closing structure not only need to drive the door body 30 to move in the horizontal direction, but also need to withstand the gravity from the door body 30. Due to the heavy weight of the door body 30, the first hinge shaft 160 and the second hinge shaft 170 are prone to deformation or even breakage due to large force.

[0117] Therefore, by providing the abutment portion 410 and using the abutment portion 410 in conjunction with the fixing member 300, part of the gravity of the door body 30 can be shared by the abutment portion 410, so that part of the gravity of the door body 30 can be transmitted to the fixing member 300 through the abutment portion 410, and part of the gravity of the door body 30 is transmitted to the first hinge shaft 160 and the second hinge shaft 170, thereby reducing the force applied to the first hinge shaft 160 and the second hinge shaft 170, thereby reducing the possibility of deformation of the first hinge shaft 160 and the second hinge shaft 170.

[0118] It should be noted that the opening angle of the door body 30 is The opening angle of the door body 30 can be determined based on the relative position of the door body 30 and the box body 10. Taking the door body 30 located on the left side of the box body 10 as an example, the opening angle of the door body 30 is It can be equal to the angle between the horizontal line perpendicular to the left side of the box 10 and the surface of the door 30 facing the box 10, for example, the opening angle of the door 30 It can be set to: the difference between the angle between the horizontal line on the left side of the box body 10 and the horizontal line on the surface of the door body 30 facing the box body 10 minus 90 degrees; and when the door body 30 is in the closed state, when the angle between the horizontal line on the left side of the box body 10 and the horizontal line on the surface of the door body 30 facing the box body 10 is less than 90 degrees, the opening angle of the door body 30 It can also be less than 0 degrees.

[0119] Reference Figure 9-11 , the following describes the relative movement relationship between the abutment portion 410 and the fixing member 300 during the process of the door body 30 rotating to open or rotate to close by taking the fixing member 300 provided with the first contact portion 310, the inclined portion 320 and the second contact portion 330 as an example.

[0120] During the process of rotating and opening the door body 30, the abutment portion 410 can move from the second contact portion 330 to the second end of the inclined portion 320, then move obliquely upward from the second end of the inclined portion 320 to the first end of the inclined portion 320, and then move to the first contact portion 310 through the first end of the inclined portion 320, thereby realizing the opening process of the door body 30.

[0121] During the process of rotating and closing the door body 30, the abutment portion 410 can move from the first contact portion 310 to the first end of the inclined portion 320, then move obliquely downward from the first end of the inclined portion 320 to the second end of the inclined portion 320, and then move to the second contact portion 330 through the second end of the inclined portion 320, thereby realizing the closing process of the door body 30.

[0122] The abutting portion 410 can be reused to form the first track groove 140 and the second track groove 150 , so that the structure of the movable member 400 is simpler.

[0123] It should be noted that the door body 30 has a certain gravity. In the process of rotating and opening the door body 30, the gravity of the door body 30 needs to be overcome so that the door body 30 can drive the abutting portion 410 to move from the second end of the inclined portion 320 to the first end of the inclined portion 320, so that the inclined portion 320 has a certain limiting effect on the abutting portion 410, reducing the possibility of movement of the abutting portion 410;

[0124] Furthermore, during the process of rotating and closing the door body 30, when the abutting portion 410 abuts against the inclined portion 320, the abutting portion 410 can move toward the second end of the inclined portion 320 under the action of the gravity of the door body 30, thereby making the process of the door body 30 moving from the inclined portion 320 to the second contact portion 330 more convenient.

[0125] For example, when the abutment portion 410 moves to the second contact portion 330, the door seal located on the rear wall of the door body 30 can surround the loading and unloading opening, so that the door seal fits against the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110, thereby ensuring that the door body 30 seals the loading and unloading opening through the cooperation of the gravity self-closing structure and the door seal to prevent cold air from overflowing.

[0126] It is easy to understand that when the abutting portion 410 is located on the surface of the second contact portion 330, the bottom of the abutting portion 410 can abut against the surface of the second contact portion 330, and the bottom of the abutting portion 410 can be relatively slidably arranged on the second contact portion 330, so that part of the gravity of the door body 30 can be transferred to the second contact portion 330 through the abutting portion 410, and part of the gravity of the door body 30 is transferred to the first hinge shaft 160 and the second hinge shaft 170, thereby increasing the support of the fixing member 300 for the door body 30.

[0127] The second contact portion 330 is spaced apart relative to the abutting portion 410, and the abutting portion 410 is brought into contact with the second contact portion 330 by abutting the bottom of the abutting portion 410 against the surface of the second contact portion 330. The second contact portion 330 can bear part of the gravity of the door body 30, thereby reducing the force applied to the first hinge shaft 160 and the second hinge shaft 170, thereby reducing the possibility of deformation of the first hinge shaft 160 and the second hinge shaft 170.

[0128] Alternatively, the bottom of the abutting portion 410 (for example, the subsequent first abutting surface 411) may also be spaced apart from the second contact portion 330; when the abutting portion 410 is located on the surface of the second contact portion 330, the bottom of the abutting portion 410 is spaced apart from the second contact portion 330, and the distance between the bottom of the abutting portion 410 and the second contact portion 330 may be set to be greater than or equal to 0.5 mm and less than or equal to 3 mm;

[0129] For example, the distance between the bottom of the abutment portion 410 and the second contact portion 330 can be set within any distance range of 0.5 mm-1 mm, 1 mm-1.5 mm, 1.5 mm-2 mm, 2 mm-2.5 mm, and 2.5 mm-3 mm to reduce the friction between the abutment portion 410 and the second contact portion 330, reduce the wear of the abutment portion 410, and reduce the possibility of extrusion deformation of the abutment portion 410.

[0130] Furthermore, the distance between the bottom of the abutment portion 410 and the second contact portion 330 can be determined based on parameters such as the thickness of the door body, the height of the door body, and the assembly space of the gravity self-closing structure. For example, the larger the assembly space of the gravity self-closing structure, the larger the distance between the bottom of the abutment portion 410 and the second contact portion 330 can be correspondingly increased, and the smaller the distance between the bottom of the abutment portion 410 and the second contact portion 330, the more compact the position between the fixed part 300 and the movable part 400, and the smaller the assembly space required for the gravity self-closing structure.

[0131] The positions of the inclined portion 320 and the second contact portion 330 may be adjusted according to the opening angle of the door body 30. Determine; for example, the opening angle of the door 30 The first setting angle, the second setting angle and the third setting angle may be successively decreased, wherein when the opening angle of the door body 30 is When the second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 320; when the opening angle of the door body 30 is When the third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320 .

[0132] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 30 degrees ≤ degrees, the abutting portion 410 abuts against the first contact portion 310, and when the opening angle of the door body 30 is When the door body opens at an angle of 30 The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 320, and when the opening angle of the door body 30 is When the door body opens at an angle of 30 The third setting angle is set, and the abutting portion 410 abuts against the second end of the inclined portion 320; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0133] Phase 1

[0134] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is 30 degrees When the door 30 opens at an angle of 1.5°, the contact portion 410 contacts the first contact portion 310, and the contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320. When the door body 30 is at a second set angle, the abutting portion 410 can move to the first end of the inclined portion 320;

[0135] Phase II

[0136] When the door is opened at an angle of 30 Setting: 15 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320;

[0137] Phase 3

[0138] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0139] It should be noted that if the user pushes the door body 30 to rotate and close the door body 30, the door body 30 will move downward in the process of the abutting portion 410 abutting against the first contact portion 310, the inclined portion 320 and the second contact portion 330 in sequence, thereby causing the user to feel a certain sense of frustration. The vertical movement distance of the door body 30 can be changed by adjusting the inclination angle of the inclined portion 320 and the height difference between the first contact portion 310 and the second contact portion 330, thereby reducing the user's sense of frustration in the process of closing the door and improving the user's experience.

[0140] For example, the first set angle, the second set angle and the third set angle of the door body 30 can be changed by adjusting the horizontal position and length of the first contact portion 310, the inclined portion 320 and the second contact portion 330 to change the first stage, the second stage and the third stage time during the process of the door body 30 rotating and closing.

[0141] The angle corresponding to the first contact portion 310 is equal to the difference between the first set angle and the second set angle, the angle corresponding to the inclined portion 320 is equal to the difference between the second set angle and the third set angle, and the angle corresponding to the second contact portion 330 is equal to the third set angle.

[0142] For example, during the process of the door body 30 rotating and closing, when the length of the first contact portion 310 increases, the moving time of the abutment portion 410 on the first contact portion 310 along the horizontal direction increases; when the length of the inclined portion 320 in the horizontal direction increases, the moving time of the abutment portion 410 on the inclined portion 320 along the horizontal and vertical directions increases, and the difference between the second set angle and the third set angle increases; when the length of the second contact portion 330 increases, the moving time of the abutment portion 410 on the first contact portion 310 along the horizontal direction increases.

[0143] In addition, the position of the second set angle of the door body 30 can be changed by adjusting the position of the first end of the inclined portion 320 in the horizontal direction, and the position of the third set angle of the door body 30 can be adjusted by adjusting the position of the second end of the inclined portion 320 in the horizontal direction to determine the movement time of the door body 30 in the vertical direction.

[0144] The angle corresponding to the inclined portion 320 (i.e., the difference between the second set angle and the third set angle) can be set to be greater than or equal to 5 degrees and less than or equal to 20 degrees. For example, the angle corresponding to the inclined portion 320 (i.e., the difference between the second set angle and the third set angle) can be set within any angle range of 5 degrees to 10 degrees, 10 degrees to 15 degrees, and 15 degrees to 20 degrees to reduce the user's sense of frustration during the door closing process.

[0145] In some embodiments, in the horizontal direction, the length of the first contact portion 310 may be equal to the length of the second contact portion 330 ; or, in the horizontal direction, the length of the first contact portion 310 may be greater than the length of the second contact portion 330 , and the length of the first contact portion 310 is greater than the length of the inclined portion 320 .

[0146] For example, in the horizontal direction, the length of the first contact portion 310 is greater than or equal to three times the length of the inclined portion 320, that is, the difference between the first setting angle and the second setting angle is greater than or equal to three times the difference between the second setting angle and the third setting angle.

[0147] For example, when the opening angle of the door body 30 is When set to 30 degrees, the door opening angle is 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees degrees, the abutting portion 410 abuts against the first contact portion 310, and when the opening angle of the door body 30 is When the door body is opened at an angle of 30 The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 320 , and the difference between the first setting angle and the second setting angle is 100 degrees.

[0148] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0149] Phase 1

[0150] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 30 degrees, the door opening angle is 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is 20 degrees When the door 30 opens at an angle of 1.5°, the contact portion 410 contacts the first contact portion 310, and the contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320. When the door body 30 is at a second set angle, the abutting portion 410 can move to the first end of the inclined portion 320;

[0151] Phase II

[0152] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320;

[0153] Phase 3

[0154] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0155] It should be noted that when the abutment portion 410 has a certain width in the horizontal direction, the abutment portion 410 corresponds to a partial central angle. For example, when the central angle corresponding to the abutment portion 410 is 5 degrees, and the angle corresponding to the second contact portion 330 (i.e., the third set angle) is 5 degrees, then when the abutment portion 410 moves to the second end of the inclined portion 320, the abutment portion 410 moves to the second contact portion 330, and the abutment portion 410 will not move on the second contact portion 330.

[0156] For example, when the opening angle of the door body 30 is When set to 30 degrees, the door opening angle is 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ degrees, the abutting portion 410 abuts against the first contact portion 310, and when the opening angle of the door body 30 is When the door body is opened at an angle of 30 The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 320 , and the difference between the first setting angle and the second setting angle is 100 degrees.

[0157] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0158] Phase 1

[0159] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 30 degrees, the door opening angle is 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is 20 degrees When the door 30 opens at an angle of 1.5°, the contact portion 410 contacts the first contact portion 310, and the contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320. When the door body 30 is at a second set angle, the abutting portion 410 can move to the first end of the inclined portion 320;

[0160] Phase II

[0161] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; When the door body 30 is at a third set angle, the abutment portion 410 moves to the second end of the inclined portion 320, the bottom surface of the abutment portion 410 is completely in contact with the second contact portion 330, and the door seal located on the rear wall of the door body 30 is in contact with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110.

[0162] It should be noted that when the bottom of the abutment portion 410 has no width in the horizontal direction, for example, the abutment portion 410 can be set as a triangular abutment portion 410, the first surface of the abutment portion 410 is arranged parallel to the inclined portion 320, and the second surface of the abutment portion 410 is arranged vertically; then the angle of the second contact portion 330 can be set to 0 degrees, that is, the second contact portion 330 can be not set, and the third set angle can be equal to 0 degrees.

[0163] For example, when the opening angle of the door body 30 is When set to 30 degrees, the door opening angle is 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ degrees, the abutting portion 410 abuts against the first contact portion 310, and when the opening angle of the door body 30 is When the door body opens at an angle of 30 The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 320 , and the difference between the first setting angle and the second setting angle is 100 degrees.

[0164] When the door is opened at an angle of 30 When the door body opens at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, and the first surface of the abutting portion 410 completely fits the inclined portion 320, and the difference between the second setting angle and the third setting angle is 20 degrees.

[0165] Phase 1

[0166] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 30 degrees, the door opening angle is 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is 20 degrees When the door 30 opens at an angle of 1.5°, the contact portion 410 contacts the first contact portion 310, and the contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320. When the door body 30 is at a second set angle, the abutting portion 410 can move to the first end of the inclined portion 320;

[0167] Phase II

[0168] When the door is opened at an angle of 30 Set to: 0 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; degrees, the door body 30 is at a third set angle, the abutment portion 410 moves to the second end of the inclined portion 320, and the first surface of the abutment portion 410 is completely fitted to the inclined portion 320, and the door seal located on the rear wall of the door body 30 is fitted to the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110.

[0169] For example, when the opening angle of the door body 30 is When the door body opens at an angle of 30 Set to the first setting angle, when the opening angle of the door body 30 When the door body opens at an angle of 30 Set to the second setting angle; when the opening angle of the door body 30 = 15 degrees, the opening angle of the door body 30 Set to the third setting angle.

[0170] At this time, on the surface of the fixed part 300 facing the movable part 400, the central angles corresponding to the first contact portion 310, the inclined portion 320 and the second contact portion 330 are set to 115 degrees, that is, in the process of the abutment portion 410 moving from the end of the first contact portion 310 away from the second contact portion 330 through the inclined portion 320 to the end of the second contact portion 330 away from the first contact portion 310, the rotation angle of the door body 30 is 115 degrees.

[0171] For example, when the opening angle of the door body 30 is When the door body is opened at an angle of 30 Set to the first setting angle, when the opening angle of the door body 30 When the door body is opened at an angle of 30 Set to the second setting angle; when the opening angle of the door body 30 =5 degrees, the opening angle of the door body 30 Set to the third setting angle.

[0172] At this time, on the surface of the fixed part 300 facing the movable part 400, the central angles corresponding to the first contact portion 310, the inclined portion 320 and the second contact portion 330 are set to 115 degrees, that is, in the process of the abutment portion 410 moving from the end of the first contact portion 310 away from the second contact portion 330 through the inclined portion 320 to the end of the second contact portion 330 away from the first contact portion 310, the rotation angle of the door body 30 is 115 degrees.

[0173] For example, when the opening angle of the door body 30 is When the door body is opened at an angle of 30 Set to the first setting angle, when the opening angle of the door body 30 When the door body is opened at an angle of 30 Set to the second setting angle; when the opening angle of the door body 30 = 0 degrees, the opening angle of the door body 30 Set to the third setting angle.

[0174] At this time, on the surface of the fixed part 300 facing the movable part 400, the central angle corresponding to the first contact portion 310, the inclined portion 320 and the second contact portion 330 is set to 115 degrees, that is, in the process of the abutment portion 410 moving from the end of the first contact portion 310 away from the second contact portion 330 through the inclined portion 320 to the end of the second contact portion 330 away from the first contact portion 310, the rotation angle of the door body 30 is 30 degrees.

[0175] In some embodiments, the position of the first end of the inclined portion 320 and the position of the second end of the inclined portion 320 can also be determined based on the relative positions of the first hinge axis 160 and the first track groove 140, and the relative positions of the second hinge axis 170 and the second track groove 150, so as to improve the stability of the movement process of the first hinge axis 160 and the second hinge axis 170.

[0176] It should be noted that the second setting angle can be set to be greater than or equal to 8 degrees and less than or equal to 25 degrees. For example, the second setting angle can be set within any angle range of 8 degrees-10 degrees, 10 degrees-12 degrees, 12 degrees-14 degrees, 14 degrees-16 degrees, 16 degrees-18 degrees, 18 degrees-20 degrees, 20 degrees-22 degrees, and 22 degrees-25 degrees.

[0177] When the door body 30 is at the third setting angle, the door body 30 may not be in a closed state, or the door body 30 may not be in a closed state, the third setting angle may be set to be greater than or equal to -5 degrees and less than or equal to 10 degrees, and the third setting angle is smaller than the second setting angle. For example, the third setting angle may be set within any angle range of -5 degrees to 0 degrees, 0 degrees to 5 degrees, 5 degrees to 8 degrees, 8 degrees to 10 degrees, 10 degrees to 12 degrees, 12 degrees to 15 degrees, 15 degrees to 18 degrees, and 18 degrees to 20 degrees.

[0178] During the process of rotating the door body 30 to open or close, the user pulls or pushes the door body 30 to rotate around the first hinge axis 160 and the second hinge axis 170. When the door body 30 rotates to between the second set angle and the third set angle, the door body 30 moves in the vertical direction relative to the fixed part 300 driven by the movable part 400.

[0179] During the process of the door body 30 rotating to open, the door body 30 can rotate from the third setting angle toward the second setting angle, the opening angle of the door body 30 gradually increases, and the door body 30 moves upward in the vertical direction driven by the abutment portion 410. When the third setting angle is smaller, the user can feel the rising process of the door body 30 earlier during the process of opening the door, and when the second setting angle is smaller, the user can feel the end of the rising process of the door body 30 earlier during the process of opening the door, and when the difference between the second setting angle and the third setting angle is smaller, the user can feel the shorter the rising process of the door body 30 during the process of opening the door.

[0180] During the process of the door body 30 rotating to close, the door body 30 can rotate from the second setting angle toward the third setting angle, the opening angle of the door body 30 gradually decreases, and the door body 30 drives the abutment portion 410 to move downward in the vertical direction. When the second setting angle is smaller, the user can feel the door body 30 descending earlier during the process of closing the door, and when the third setting angle is smaller, the user can feel the end of the door body 30 descending earlier during the process of opening the door, and the smaller the difference between the second setting angle and the third setting angle, the shorter the door body 30 descending process can be felt by the user during the process of opening the door.

[0181] In some embodiments, reference Figure 16-Figure 19 The center track line of the first track groove 140 is recorded as the first track line, and the first track line is defined by the shape of the first track groove 140. The first track line includes a straight track segment and a curved track segment connected by a smooth transition. The straight track segment extends toward the door side wall 32, and the curved track segment is located on the side of the straight track segment close to the door side wall 32, and protrudes toward the direction close to the second side edge N.

[0182] The first trajectory groove 140 has a first inflection point U, and the first inflection point U divides the first trajectory groove 140 into a curved groove segment and a straight groove segment. The portion of the first trajectory groove 140 located between the first end of the first trajectory groove 140 and the first inflection point U forms a curved groove segment, and the center trajectory line of the curved groove segment is correspondingly recorded as the curved trajectory segment; the portion of the first trajectory groove 140 located between the first inflection point U and the second end of the first trajectory groove 140 forms a straight groove segment, and the center trajectory line of the straight groove segment is correspondingly recorded as the straight trajectory segment.

[0183] The second track groove 150 can be set as a curved groove, and one end of the second track groove 150 is farther away from the door rear wall and the door side wall 32 than the other end of the second track groove 150. The second track groove 150 protrudes toward the door rear wall. The center track line of the second track groove 150 is recorded as the second track line. The second track line is defined by the shape of the second track groove 150, and the second track line is curved and protrudes toward the door rear wall.

[0184] The second inflection point V divides the second trajectory groove 150 into a first curved segment and a second curved segment; the portion of the second trajectory groove 150 between the first end of the second trajectory groove 150 and the second inflection point V forms the first curved segment, and the portion of the second trajectory groove between the second inflection point V and the second end of the second trajectory groove 150 forms the second curved segment.

[0185] When the door body 30 rotates by a unit angle, the speed at which the first hinge axis 160 is located in the curved groove section is less than the speed at which the first hinge axis is located in the straight groove section; the curvature of the second curved segment is less than the curvature of the first curved segment, and when the door body 30 rotates by a unit angle, the speed at which the second hinge axis 170 is located in the first curved segment is less than the speed at which the second hinge axis 170 is located in the second curved segment.

[0186] Alternatively, the first trajectory groove 140 can also be set as a curved groove, and the first inflection point U divides the first trajectory groove 140 into a first curved portion and a second curved portion; the portion of the first trajectory groove 140 located between the first end of the first trajectory groove 140 and the first inflection point U forms the first curved portion, and the portion of the first trajectory groove 140 located between the first inflection point U and the second end of the first trajectory groove 140 forms the second curved portion.

[0187] The first trajectory line includes a first positioning point P1 far from the door side wall 32 and a sixth positioning point P6 close to the door side wall 32. The first trajectory line first extends from the first positioning point P1 along a straight line toward the door side wall 32, and then extends along a curve to the sixth positioning point P6;

[0188] For example, the first trajectory line extends from the first positioning point P1 along a straight line toward the door side wall 32, and then extends to the sixth positioning point P6 along a curve toward the door side wall 32 and the door front wall 31. The distance between the first positioning point P1 and the door front wall 31 is recorded as D1, and the distance between the sixth positioning point P6 and the door front wall 31 is recorded as D2, and D1>D2.

[0189] For example, the sixth positioning point P6 is located on the side of the first positioning point P1 close to the door side wall 32 and away from the door front wall 31, that is, the first trajectory line extends from the first positioning point P1 along a straight line toward the door side wall 32, and then extends along a curve toward the door side wall 32 and away from the door front wall 31 to the sixth positioning point P6.

[0190] Hereinafter, the first trajectory line will be described as extending from the first positioning point P1 along a straight line toward the door side wall 32 and then along a curve toward the door side wall 32 and the door front wall 31 to the sixth positioning point P6.

[0191] The second trajectory line includes a first guide point Q1 away from the door side wall 32 and a sixth guide point Q6 close to the door side wall 32. The sixth guide point Q6 is located on the side of the first guide point Q1 away from the door front wall 31 and close to the door side wall 32, and the second trajectory line extends from the first guide point Q1 to the direction away from the door front wall 31 and close to the door side wall 32 along a curve to the sixth guide point Q6.

[0192] When the door body 30 is in the closed state (i.e. When the door 30 is in the closed state, the first hinge axis is located at the side of the second hinge axis 170 close to the door side wall 32 and close to the door rear wall.

[0193] The distance between the first guide point Q1 and the door front wall 31 is recorded as Z1, and the distance between the sixth guide point Q6 and the door front wall 31 is recorded as Z2. For example, Z1<D2<D1<Z2. The above setting enables the second track groove 150 to effectively limit the movement of the second hinge shaft 170, so as to drive the first hinge shaft 160 to move in the first track groove 140, so that the door body 30 moves a certain distance inward during the opening process of the door body 30, and ensures the stability of the door body 30 rotating to open.

[0194] In this embodiment, when the door body 30 is in a closed state, the central axis (positioning central axis P) of the first hinge axis 160 is located at the first positioning point P1 of the first trajectory line, and the central axis (guide central axis Q) of the second hinge axis 170 is located at the first guide point Q1 of the second trajectory line. That is, when the door body 30 is in a closed state, the first hinge axis 160 is located on the side of the second hinge axis 170 close to the door side wall 32 and close to the door rear wall.

[0195] It should be noted that the first inflection point U and the second inflection point V can be defined as: taking the line perpendicular to the left and right sides of the box body 10 as a reference line, when the door body 30 is in a closed state, within the plane where the first track groove 140 and the second track groove 150 are located, the reference line and the inner walls on both sides of the first track groove 140 form tangent points, and the center of the line connecting the two tangent points can be determined as the first inflection point U of the first track groove 140.

[0196] When the door body 30 is in a closed state, in the plane where the first track groove 140 and the second track groove 150 are located, the reference line and the inner walls on both sides of the second track groove 150 form tangent points, and the center of the line connecting the two tangent points can be determined as the second inflection point V of the second track groove 150. When the length direction of the movable member 400 is parallel to the reference line, the reference line can be set as the length direction of the movable member 400, so as to facilitate the determination process of the first inflection point U and the second inflection point V.

[0197] Alternatively, the first inflection point U and the second inflection point V can also be defined as: during the process of the door body 30 rotating to open or rotating to close, the force process of the first hinge axis 160 and the second hinge axis 170 can be analyzed, or the torque of the first hinge axis 160 and the second hinge axis 170 can also be analyzed. When the force on the first hinge axis 160 or the torque of the first hinge axis 160 changes significantly, the first hinge axis 160 is located at the first inflection point U of the first trajectory groove 140 to determine the time when the first hinge axis 160 is located at the first inflection point U of the first trajectory groove 140.

[0198] When the force on the second hinge axis 170 or the moment of the second hinge axis 170 changes greatly, the second hinge axis 170 is located at the second inflection point V of the second track groove 150, so as to determine the time when the second hinge axis 170 is located at the second inflection point V of the second track groove 150. In addition, the relative position of the movable member 400 in the vertical direction can be measured to determine the time when the movable member 400 reaches the first end of the inclined portion 320 and the second end of the inclined portion 320.

[0199] The following takes the first trajectory groove 140 as a curved groove segment and a straight groove segment as an example to describe the relative positions of the positioning center axis P and the guide center axis Q during the process of the door body 30 rotating and closing. Alternatively, the first trajectory groove 140 can also be set as a first curved portion and a second curved portion. In the following movement process, the curved groove segment can be replaced by the first curved portion, and the straight groove segment can be replaced by the second curved portion. The embodiments of the present application will not be repeated in the following text.

[0200] During the process of the door body 30 rotating and closing, when the positioning center axis P passes through the inflection point of the first trajectory groove 140 and the guide center axis Q passes through the inflection point of the second trajectory groove 150, the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P passes through the first inflection point U of the first trajectory groove 140, and the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0201] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the abutment portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the curved groove section (or the first curved section) to the straight groove section (or the second curved section), and the guiding center axis Q moves from the first curved section to the second curved section;

[0202] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P passes through the first inflection point U of the first trajectory groove 140, the positioning center axis P is located between the first inflection point U and the second end of the first trajectory groove 140, the positioning center axis P is located in the straight groove section, the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, the guide center axis Q is located between the second inflection point V and the second end of the second trajectory groove 150, the guide center axis Q is located in the second curved segment, and the difference between the first set angle and the second set angle is 110 degrees.

[0203] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the straight groove section, the guide center axis Q is located in the second curved section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0204] Phase 1

[0205] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0206] When the door body 30 opens at an angle of 20 degrees When the angle is 0.5, the abutting portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the first end of the first track groove 140 toward the second end of the first track groove 140, the positioning center axis P moves from the curved groove section through the first inflection point U of the first track groove 140 to the straight groove section, the guide center axis Q moves from the first end of the second track groove 150 through the second inflection point V of the second track groove 150 toward the second end of the second track groove 150, and the abutting portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320;

[0207] When the door is opened at an angle of 30 When the door body 30 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P passes through the first inflection point U of the first track groove 140, the positioning center axis P is located in the straight groove section, the guide center axis Q passes through the second inflection point V of the second track groove 150, and the guide center axis Q is located in the second curved segment;

[0208] Phase II

[0209] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320, and the positioning center axis P moves toward the first end of the first track groove 140 through another inflection point;

[0210] Phase 3

[0211] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0212] During the process of rotating and closing the door body 30, when the positioning center axis P passes through the inflection point of the first trajectory groove 140 and the guide center axis Q has not moved to the inflection point of the second trajectory groove 150, the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P passes through the first inflection point U of the first trajectory groove 140, and the guide center axis Q is located between the first end of the second trajectory groove 150 and the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0213] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the abutting portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the curved groove section to the straight groove section, and the guiding center axis Q is located in the first curved segment;

[0214] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P passes through the first inflection point U of the first trajectory groove 140, the positioning center axis P is located between the first inflection point U and the second end of the first trajectory groove 140, the positioning center axis P is located in the straight groove section, the guide center axis Q has not moved to the second inflection point V of the second trajectory groove 150, the guide center axis Q is located between the first end and the second inflection point V of the second trajectory groove 150, the guide center axis Q is located in the first curved segment, and the difference between the first set angle and the second set angle is 110 degrees.

[0215] When the door is opened at an angle of 30 Set to: 5 degrees When the door body opens at an angle of 30 The second inflection point V is located between the second setting angle and the third setting angle, and the angle corresponding to the second inflection point V can be located between the second setting angle and the third setting angle; the abutting portion 410 abuts against the inclined portion 320, the positioning center axis P is located in the straight groove segment, and the guiding center axis Q moves from the first curved segment through the second inflection point V of the second track groove 150 to the first curved segment;

[0216] When the door is opened at an angle of 30 When the door body opens at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the straight groove section, the guide center axis Q is located in the second curved section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0217] Phase 1

[0218] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0219] When the door body 30 opens at an angle of 20 degrees When the angle is 0.5, the abutting portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the first end of the first track groove 140 toward the second end of the first track groove 140, the positioning center axis P moves from the curved groove section through the first inflection point U of the first track groove 140 to the straight groove section, the guide center axis Q moves from the second end of the second track groove 150 toward the second inflection point V of the second track groove 150, and the abutting portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320;

[0220] When the door is opened at an angle of 30 When the door body 30 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P passes through the first inflection point U of the first track groove 140, the positioning center axis P is located in the straight groove section, the guide center axis Q does not move to the second inflection point V of the second track groove 150, and the guide center axis Q is located in the first curved segment;

[0221] Phase II

[0222] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 is at a certain angle to the inclined portion 320, the abutting portion 410 abuts against the inclined portion 320, and the door body 30 can drive the abutting portion 410 to move downward under the action of gravity, so that the abutting portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door body 30 to move downward through the abutting portion 410; the positioning center axis P is located in the straight groove and moves toward the second end of the first track groove 140, and the guiding center axis Q moves from the first curved segment through the second inflection point V of the second track groove 150 to the second curved segment;

[0223] When the door is opened at an angle of 30 When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320, the positioning center axis P is located in the linear groove, and the guiding center axis Q is located in the second curved segment.

[0224] Phase 3

[0225] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0226] During the process of rotating and closing the door body 30, when the positioning center axis P has not moved to the inflection point of the first trajectory groove 140 and the guide center axis Q has passed the inflection point of the second trajectory groove 150, the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P is located between the first end of the first trajectory groove 140 and the first inflection point U of the first trajectory groove 140, and the guide center axis Q passes the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0227] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the abutting portion 410 abuts against the first contact portion 310, the positioning center axis P is located in the curved groove, and the guiding center axis Q moves from the first curved segment to the second curved segment;

[0228] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P is located in the curved groove, the positioning center axis P is located between the first end of the first trajectory groove 140 and the first inflection point U, the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, the guide center axis Q is located between the second inflection point V and the second end of the second trajectory groove 150, the guide center axis Q is located in the second curved segment, and the difference between the first set angle and the second set angle is 110 degrees.

[0229] When the door is opened at an angle of 30 Set to: 5 degrees When the door body is opened at an angle of 30 The first inflection point U is located between the second setting angle and the third setting angle, and the angle corresponding to the first inflection point U can be located between the second setting angle and the third setting angle; the abutting portion 410 abuts against the inclined portion 320, and the positioning center axis P moves from the curved groove section through the first inflection point U to the straight groove section, and the guiding center axis Q is located in the first curved segment;

[0230] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the straight groove section, the guide center axis Q is located in the second curved section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0231] Phase 1

[0232] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0233] When the door body 30 opens at an angle of 20 degrees When the angle is 0.5, the abutting portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the first end of the first track groove 140 toward the second end of the first track groove 140, the positioning center axis P is located in the curved groove section, the guide center axis Q moves from the first end of the second track groove 150 through the second inflection point V of the second track groove 150 toward the second end of the second track groove 150, and the abutting portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320;

[0234] When the door is opened at an angle of 30 When the door body 30 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P does not move the first inflection point U of the first track groove 140, the positioning center axis P is located in the curved groove section, the guide center axis Q passes through the second inflection point V of the second track groove 150, and the guide center axis Q is located in the second curved segment;

[0235] Phase II

[0236] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 is at a certain angle to the inclined portion 320, the abutting portion 410 abuts against the inclined portion 320, and the door body 30 can drive the abutting portion 410 to move downward under the action of gravity, so that the abutting portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door body 30 to move downward through the abutting portion 410; the positioning center axis P moves from the curved groove section through the first inflection point U of the first track groove 140 to the straight groove, and the guiding center axis Q is located in the second curved segment and moves toward the second end of the second track groove 150;

[0237] When the door is opened at an angle of 30 When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320, the positioning center axis P is located in the linear groove, and the guiding center axis Q is located in the second curved segment.

[0238] Phase 3

[0239] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0240] Reference Figure 20-23 In some embodiments, the first trajectory groove 140 includes a second inner groove segment connected to the first inner groove segment, and the second trajectory groove 150 includes a second outer groove segment connected to the first outer groove segment.

[0241] The first track groove 140 also includes a third inner groove segment connected to the second inner groove segment, and the third inner groove segment is an arc centered at the end position of the second outer groove segment. When the door body 30 is opened from the second opening angle relative to the box body 110 under the action of the hinge assembly 30 Turn to open to the third opening angle During the process, the second hinge shaft 170 rotates relative to the second track groove 150 at the end position of the second outer groove segment, and the first hinge shaft 160 synchronously moves relative to the first track groove 140 from the starting position of the third inner groove segment to the end position of the third inner groove segment.

[0242] When the door body 30 is opened from the first opening angle relative to the box body 110 under the action of the hinge assembly 130 Turn to open to the second opening angle During the process, the second hinge axis 170 moves relative to the second track groove 150, the movement starting point is the starting position of the second outer groove segment, and the movement end point is the end position of the second outer groove segment, and the first hinge axis 160 moves synchronously relative to the first track groove 140, the movement starting point is the starting position of the second inner groove segment, and the movement end point is the end position of the second inner groove segment;

[0243] The first track groove 140 has two first inflection points U, and the two first inflection points U are sequentially arranged between the first end of the first track groove 140 and the second end of the first track groove 140. The two first inflection points U separate the first track groove 140 into a first inner groove section, a second inner groove section and a third inner groove section. The portion of the first track groove 140 between the first end of the first track groove 140 and one of the first inflection points U forms the first inner groove section, the portion of the first track groove 140 between the two first inflection points U forms the second inner groove section, and the portion of the first track groove 140 between the other first inflection point U and the second end of the first track groove 140 forms the third inner groove section.

[0244] The second trajectory groove 150 has a second inflection point V, which divides the second trajectory groove 150 into a first outer groove section and a second outer groove section. The portion of the second trajectory groove 150 between the first end of the second trajectory groove 150 and the second inflection point V forms the first outer groove section, and the portion of the second trajectory groove 150 between the second inflection point V and the second end of the second trajectory groove 150 forms the second outer groove section.

[0245] During the process of rotating and opening the door body 30, the first hinge shaft 160 moves in the first trajectory groove 140 from the first end of the first trajectory groove 140 toward the second end of the first trajectory groove 140, that is, the first hinge shaft 160 moves from the first inner groove section through the second inner groove section toward the third inner groove section; the second hinge shaft 170 moves in the second trajectory groove 150 from the first end of the second trajectory groove 150 toward the second end of the second trajectory groove 150, that is, the second hinge shaft 170 moves from the first outer groove section toward the second outer groove section.

[0246] During the process of rotating and closing the door body 30, the first hinge shaft 160 moves in the first trajectory groove 140 from the second end of the first trajectory groove 140 toward the first end of the first trajectory groove 140, that is, the first hinge shaft 160 moves from the third inner groove section through the second inner groove section toward the first inner groove section; the second hinge shaft 170 moves in the second trajectory groove 150 from the second end of the second trajectory groove 150 toward the first end of the second trajectory groove 150, that is, the second hinge shaft 170 moves from the second outer groove section toward the first outer groove section.

[0247] It should be noted that the first inflection point U can be defined as: taking an inclined line as a reference line, the angle of the inclined line is close to the line connecting the first end of the first trajectory groove 140 and the second end of the first trajectory groove 140, and gradually moving the inclined line from the side of the first trajectory groove 140 away from the second trajectory groove 150, so that the inclined line gradually approaches the first trajectory groove 140 in a direction perpendicular to the inclined line, a group of two tangent points will be formed between the side of the first trajectory groove 140 away from the second trajectory groove 150 and the inclined line, and then moving the inclined line in a direction close to the second trajectory groove 150, the inclined line will form a group of two tangent points with the side of the first trajectory groove 140 close to the second trajectory groove 150, the two groups of tangent points correspond one to one, and the center of the line connecting the corresponding two tangent points can be determined as the first inflection point U of the first trajectory groove 140.

[0248] The second inflection point V can be defined as: taking the line perpendicular to the left and right sides of the box body 10 as the reference line, when the door body 30 is in the closed state, within the plane where the first track groove 140 and the second track groove 150 are located, the reference line and the inner walls on both sides of the second track groove 150 form tangent points, and the center of the line connecting the two tangent points can be determined as the second inflection point V of the second track groove 150. When the length direction of the movable member 400 is parallel to the reference line, the reference line can be set as the length direction of the movable member 400, so as to facilitate the determination process of the first inflection point U and the second inflection point V.

[0249] Alternatively, the first inflection point U and the second inflection point V can also be defined as: during the process of the door body 30 rotating to open or rotating to close, the force process of the first hinge axis 160 and the second hinge axis 170 can be analyzed, or the torque of the first hinge axis 160 and the second hinge axis 170 can also be analyzed. When the force on the first hinge axis 160 or the torque of the first hinge axis 160 changes significantly, the first hinge axis 160 is located at the first inflection point U of the first trajectory groove 140 to determine the time when the first hinge axis 160 is located at the first inflection point U of the first trajectory groove 140.

[0250] When the force on the second hinge axis 170 or the moment of the second hinge axis 170 changes greatly, the second hinge axis 170 is located at the second inflection point V of the second track groove 150, so as to determine the time when the second hinge axis 170 is located at the second inflection point V of the second track groove 150. In addition, the relative position of the movable member 400 in the vertical direction can be measured to determine the time when the movable member 400 reaches the first end of the inclined portion 320 and the second end of the inclined portion 320.

[0251] In this embodiment, the central axis of the first hinge axis is recorded as the positioning central axis P, and the central axis of the second hinge axis is recorded as the guiding central axis Q; in the projection of the plane where the top wall of the box body 110 is located, the line segment PQ is recorded as the axis line segment PQ.

[0252] During the process of the door body 30 rotating and closing, when the positioning center axis P passes through the inflection point of the first trajectory groove 140 and the guide center axis Q passes through the inflection point of the second trajectory groove 150, the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P passes through the two first inflection points U of the first trajectory groove 140, and the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0253] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the abutting portion 410 abuts against the first contact portion 310, the positioning center axis P is located in the third inner groove section, and the guiding center axis Q is located in the second outer groove section;

[0254] When the door is opened at an angle of 30 When the door body opens at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P passes through the two first inflection points U of the first trajectory groove 140, the positioning center axis P is located between the other first inflection point U and the first end of the first trajectory groove 140, the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, the guide center axis Q is located between the second inflection point V and the first end of the second trajectory groove 150, and the difference between the first set angle and the second set angle is 110 degrees.

[0255] When the door is opened at an angle of 30 When the door body opens at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the first inner groove section, the guide center axis Q is located in the first outer groove section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0256] Phase 1

[0257] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0258] When the door body 30 opens at an angle of 20 degrees When the angle is 0.5, the abutting portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the second end of the first track groove 140 toward the first end of the first track groove 140, the positioning center axis P moves through the third inner groove section and the second inner groove section to the first inner groove section, the guide center axis Q moves from the second end of the second track groove 150 through the second inflection point V of the second track groove 150 toward the first end of the second track groove 150, and the abutting portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320;

[0259] When the door is opened at an angle of 30 When the door body 30 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P passes through the two first inflection points U of the first track groove 140, and the guiding center axis Q passes through the second inflection point V of the second track groove 150;

[0260] Phase II

[0261] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320 , and the positioning center axis P moves toward the second end of the first track groove 140 ;

[0262] Phase 3

[0263] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0264] During the process of rotating and closing the door body 30, while the positioning center axis P moves to an inflection point of the first trajectory groove 140, the guide center axis Q moves to the inflection point of the second trajectory groove 150, and the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P passes through one of the first inflection points U of the first trajectory groove 140 and moves to another first inflection point U of the first trajectory groove 140, and the guide center axis Q moves to the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0265] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the abutment portion 410 abuts against the first contact portion 310, the positioning center axis P is located in the second inner groove section, and the positioning center axis P is located between the second end of the first track groove 140 and another first inflection point U; the guiding center axis Q is located in the second outer groove section, and the guiding center axis Q is located between the second end of the second track groove 150 and the second inflection point V;

[0266] When the door is opened at an angle of 30 When the door body opens at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P is located at another first inflection point U of the first trajectory groove 140, and the guide center axis Q moves to the second inflection point V of the second trajectory groove 150. The difference between the first set angle and the second set angle is 110 degrees.

[0267] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the first inner groove section, the guide center axis Q is located in the first outer groove section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0268] Phase 1

[0269] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0270] When the door body 30 opens at an angle of 20 degrees When the contact portion 410 contacts the first contact portion 310, the positioning center axis P passes through one of the first inflection points U of the first track groove 140 from the second end of the first track groove 140, and the positioning center axis P moves toward the other first inflection point U of the first track groove 140. The positioning center axis P passes through the third inner groove section and moves into the second inner groove section. The guide center axis Q moves from the second end of the second track groove 150 toward the second inflection point V of the second track groove 150, and the contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320.

[0271] When the door is opened at an angle of 30 When the door body 30 is at a second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P moves to another first inflection point U of the first track groove 140, and the guide center axis Q moves to the second inflection point V of the second track groove 150;

[0272] Phase II

[0273] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320;

[0274] Phase 3

[0275] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0276] During the process of rotating and closing the door body 30, when the positioning center axis P is located between the two inflection points of the first trajectory groove 140, the guide center axis Q moves to the inflection point of the second trajectory groove 150, and the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P moves from one of the first inflection points U of the first trajectory groove 140 toward the other first inflection point U of the first trajectory groove 140, and the guide center axis Q moves to the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0277] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the abutment portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the third inner groove section to the second inner groove end 142, and the positioning center axis P is located between the second end of the first track groove 140 and another first inflection point U; the guide center axis Q is located in the second outer groove section, and the guide center axis Q is located between the second end of the second track groove 150 and the second inflection point V;

[0278] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P is located between the two inflection points of the first trajectory groove 140, and the guide center axis Q moves to the second inflection point V of the second trajectory groove 150. The difference between the first set angle and the second set angle is 110 degrees.

[0279] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the first inner groove section, the guide center axis Q is located in the first outer groove section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0280] Phase 1

[0281] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0282] When the door body 30 opens at an angle of 20 degrees When the contact portion 410 contacts the first contact portion 310, the positioning center axis P moves from one of the first inflection points U of the first track groove 140 toward the other first inflection point U of the first track groove 140, the positioning center axis P moves through the third inner groove section to the second inner groove section, the guide center axis Q moves from the second end of the second track groove 150 toward the second inflection point V of the second track groove 150, and the contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320;

[0283] When the door is opened at an angle of 30 When the door body 30 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P moves to between the two inflection points of the first track groove 140, and the guide center axis Q moves to the second inflection point V of the second track groove 150;

[0284] Phase II

[0285] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410, and the positioning center axis P moves through the second inner groove section to the first inner groove section; when the door 30 opens at an angle of 0.5, the door 30 moves downward through the contact portion 410, and the positioning center axis P moves through the second inner groove section to the first inner groove section; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320, and the positioning center axis P moves toward the first end of the first track groove 140 through another inflection point;

[0286] Phase 3

[0287] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0288] During the process of rotating and closing the door body 30, while the positioning center axis P moves to an inflection point of the first trajectory groove 140, the guide center axis Q passes through the inflection point of the second trajectory groove 150, and the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P passes through one of the first inflection points U of the first trajectory groove 140 and moves to another first inflection point U of the first trajectory groove 140, and the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0289] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the contact portion 410 contacts the first contact portion 310, the positioning center axis P is located in the second inner groove section, and the positioning center axis P is located between the second end of the first track groove 140 and another first inflection point U; the guiding center axis Q moves from the second outer groove section to the first outer groove section, and the guiding center axis Q is located between the second inflection point V and the second end of the second track groove 150;

[0290] When the door is opened at an angle of 30 When the door body opens at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P is located at another first inflection point U of the first trajectory groove 140, the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, and the difference between the first set angle and the second set angle is 110 degrees.

[0291] When the door is opened at an angle of 30 When the door body opens at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the first inner groove section, the guide center axis Q is located in the first outer groove section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0292] Phase 1

[0293] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0294] When the door body 30 opens at an angle of 20 degrees When the contact portion 410 contacts the first contact portion 310, the positioning center axis P passes through one of the first inflection points U of the first track groove 140 from the second end of the first track groove 140, and the positioning center axis P moves toward the other first inflection point U of the first track groove 140. The positioning center axis P moves through the third inner groove section to the second inner groove section, and the guide center axis Q moves from the second end of the second track groove 150 through the second inflection point V toward the first end of the second track groove 150. The contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320.

[0295] When the door is opened at an angle of 30 When the door body 30 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P moves to another first inflection point U of the first track groove 140, the guide center axis Q passes through the second inflection point V of the second track groove 150, and the guide center axis Q is located in the first outer groove section;

[0296] Phase II

[0297] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; when the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320;

[0298] Phase 3

[0299] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0300] During the process of rotating and closing the door body 30, when the positioning center axis P is located between the two inflection points of the first trajectory groove 140, the guide center axis Q passes through the inflection point of the second trajectory groove 150, and the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P moves from one of the first inflection points U of the first trajectory groove 140 toward the other first inflection point U of the first trajectory groove 140, and the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0301] For example, when the opening angle of the door body 30 is When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320. When the opening angle of the door body 30 is Set to: 20 degrees ≤ When the abutment portion 410 abuts against the first contact portion 310, the positioning center axis P moves from the third inner groove section to the second inner groove end 142, and the positioning center axis P is located between the second end of the first track groove 140 and another first inflection point U; the guide center axis Q moves from the second outer groove section to the first outer groove section, and the guide center axis Q is located between the second inflection point V and the second end of the second track groove 150;

[0302] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 It is set to a second set angle, the abutment portion 410 abuts against the first end of the inclined portion 320, the positioning center axis P is located between the two inflection points of the first trajectory groove 140, the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, and the difference between the first set angle and the second set angle is 110 degrees.

[0303] When the door is opened at an angle of 30 When the door body is opened at an angle of 30 The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 320, the positioning center axis P is located in the first inner groove section, the guide center axis Q is located in the first outer groove section, and the difference between the second setting angle and the third setting angle is 15 degrees; when the opening angle of the door body 30 Set to: 0 degrees When the abutting portion 410 abuts against the second contact portion 330 .

[0304] Phase 1

[0305] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When set to 130 degrees, the opening angle of the door body 30 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 310 away from the inclined portion 320;

[0306] When the door body 30 opens at an angle of 20 degrees When the contact portion 410 contacts the first contact portion 310, the positioning center axis P moves from one of the first inflection points U of the first track groove 140 toward the other first inflection point U of the first track groove 140, the positioning center axis P moves through the third inner groove section to the second inner groove section, the guide center axis Q moves from the second end of the second track groove 150 through the second inflection point V toward the first end of the second track groove 150, and the contact portion 410 moves from the end of the first contact portion 310 away from the inclined portion 320 toward the inclined portion 320;

[0307] When the door is opened at an angle of 30 When the door body 30 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 320, the positioning center axis P moves to between the two inflection points of the first track groove 140, the guide center axis Q passes through the second inflection point V of the second track groove 150, and the guide center axis Q is located in the first outer groove section;

[0308] Phase II

[0309] When the door is opened at an angle of 30 Set to: 5 degrees When the door 30 opens at an angle of 0.5, the contact portion 410 contacts the inclined portion 320, and the door 30 can drive the contact portion 410 to move downward under the action of gravity, so that the contact portion 410 moves from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the movable member 400 drives the door 30 to move downward through the contact portion 410, and the positioning center axis P moves through the second inner groove section to the first inner groove section; when the door 30 opens at an angle of 0.5, the door 30 moves downward through the contact portion 410, and the positioning center axis P moves through the second inner groove section to the first inner groove section; When the door body 30 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 320, and the positioning center axis P moves toward the first end of the first track groove 140 through another inflection point;

[0310] Phase 3

[0311] When the door is opened at an angle of 30 Set to: 0 degrees When the opening angle of the door body 30 is 1.5, the abutting portion 410 abuts against the second contact portion 330 to drive the abutting portion 410 to move toward the end of the second contact portion 330 away from the inclined portion 320; When the abutting portion 410 abuts against the second contact portion 330 , the door seal located on the rear wall of the door body 30 fits with the front end surface of the box body 110 to effectively seal the connection between the door body 30 and the box body 110 .

[0312] It should be noted that, in the process of the door body 30 rotating and closing, “one of the first inflection points U” refers to one of the two first inflection points U that is close to the second end of the first track groove 140 , and “the other first inflection point U” refers to one of the two first inflection points U that is close to the first end of the first track groove 140 .

[0313] The first trajectory groove 140 may further include a plurality of first inflection points U. During the process of the door body 30 rotating and closing, the “inflection point of the first trajectory groove 140” may indicate the first first inflection point U among the plurality of first inflection points U. For example, “the positioning center axis P moves to the inflection point of the first trajectory groove 140” may also indicate that the positioning center axis P moves to the first first inflection point U. Alternatively, the “inflection point of the first trajectory groove 140” may indicate any remaining first inflection point U among the plurality of first inflection points U. For example, “the positioning center axis P moves to the inflection point of the first trajectory groove 140” may indicate that the positioning center axis P passes through some of the first inflection points U and moves to a first inflection point U.

[0314] The second trajectory groove 150 may further include a plurality of second inflection points V. During the process of the door body 30 rotating and closing, the “inflection point of the second trajectory groove 150” may indicate the first second inflection point V among the plurality of second inflection points V, for example, “the guide center axis Q moves to the inflection point of the second trajectory groove 150” may indicate that the guide center axis Q moves to the first second inflection point V; or, the “inflection point of the second trajectory groove 150” may also indicate any remaining second inflection point V among the plurality of second inflection points V, for example, “the guide center axis Q moves to the inflection point of the second trajectory groove 150” may indicate that the guide center axis Q passes through some of the second inflection points V and moves to a second inflection point V.

[0315] During the process of rotating and closing the door body 30, while the positioning center axis P moves to the inflection point of the first trajectory groove 140, the guide center axis Q moves to the inflection point of the second trajectory groove 150, and the door body 30 is located at the second set angle. For example, when the door body 30 is located at the second set angle, the positioning center axis P moves to the inflection point of the first trajectory groove 140, and the guide center axis Q moves to the inflection point of the second trajectory groove 150, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0316] Alternatively, during the process of the door body 30 rotating and closing, the positioning center axis P passes through the turning point of the first trajectory groove 140, the guide center axis Q does not move to the turning point of the second trajectory groove 150, and the door body 30 does not rotate to the second set angle. When the positioning center axis P passes through the turning point of the first trajectory groove 140 and the guide center axis Q moves to the turning point of the second trajectory groove 150, the door body 30 rotates to the second set angle, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0317] Alternatively, during the process of the door body 30 rotating and closing, when the positioning center axis P has not moved to the turning point of the first trajectory groove 140 and the guide center axis Q has moved to the turning point of the second trajectory groove 150, the door body 30 has not rotated to the second set angle; when the positioning center axis P moves to the turning point of the first trajectory groove 140 and the guide center axis Q passes the turning point of the second trajectory groove 150, the door body 30 rotates to the second set angle, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0318] Alternatively, during the process of the door body 30 rotating and closing, while the positioning center axis P moves to the turning point of the first trajectory groove 140, the guide center axis Q moves to the turning point of the second trajectory groove 150, and the door body 30 has not rotated to the second set angle; after the positioning center axis P passes the turning point of the first trajectory groove 140 and the guide center axis Q passes the turning point of the second trajectory groove 150, the door body 30 rotates to the second set angle, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0319] Alternatively, during the process of rotating and closing the door body 30, when the positioning center axis P passes the inflection point of the first track groove 140, the guide center axis Q moves to the inflection point of the second track groove 150, the door body 30 is located at the second set angle, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0320] Alternatively, during the process of rotating and closing the door body 30, after the positioning center axis P moves to the inflection point of the first trajectory groove 140 and the guide center axis Q moves to the inflection point of the second trajectory groove 150, the door body 30 is located at the second set angle and the abutment portion 410 moves to the first end of the inclined portion 320.

[0321] Alternatively, during the process of rotating and closing the door body 30, before the positioning center axis P moves to the inflection point of the first trajectory groove 140 and the guide center axis Q moves to the inflection point of the second trajectory groove 150, the door body 30 is located at the second set angle and the abutment portion 410 moves to the first end of the inclined portion 320.

[0322] Alternatively, during the process of rotating and closing the door body 30, before the positioning center axis P moves to the inflection point of the first trajectory groove 140, the guide center axis Q moves to the inflection point of the second trajectory groove 150, the door body 30 is located at the second set angle, and the abutment portion 410 moves to the first end of the inclined portion 320.

[0323] Reference Fig.24 and Fig.25 In some embodiments, the refrigerator also has a matching lock hook 420 and a stopper 111, and the stopper 111 is used to cooperate with the lock hook 420 to achieve locking and unlocking of the door body 30 and the box body 110, wherein the lock hook 420 can be relatively fixed to one of the box body 110 and the door body 30, and the stopper 111 can be relatively fixed to the other of the box body 110 and the door body 30.

[0324] For example, the lock hook 420 can be fixed relatively to the movable part 400, the lock hook 420 extends in the direction away from the door side wall and bends in the direction close to the door rear wall and close to the door side wall, the opening of the lock hook 420 faces toward the door side wall, and the free end of the lock hook 420 is closer to the door rear wall than its fixed end.

[0325] For example, the stopper 111 may be disposed on a side of the hinge plate 131 away from the first body side wall, and the stopper 111 may be relatively fixed to the fixing member 300. A hooking gap is formed on the side of the stopper 111 close to the box body 110. When the door body 30 is in a closed state, the free end of the lock hook 420 is received in the hooking gap, the stopper 111 is located in the lock hook 420, and the lock hook 420 on the door body 30 hooks the stopper 111 on the hinge plate 131, thereby locking the door body 30 to prevent the door body 30 from being loosely closed, thereby affecting the refrigeration and freezing effect of the refrigerator.

[0326] When the door body 30 is opened, the lock hook 420 is deformed by force to overcome the blocking of the stopper 111 , thereby breaking away from the stopper 111 .

[0327] For example, the lock hook 420 includes a connecting portion and a hooking portion. The hooking portion is connected to the connecting portion and is bent toward a side close to the door rear wall and the door side wall. The screw passes through the connecting portion and is inserted into the door body 30 to fix the connecting portion to the door body 30, thereby strengthening the connection strength between the connecting portion and the door body 30, so that when the lock hook 420 is separated from the stopper 111, only the hooking portion is deformed.

[0328] The free ends of the hooking portion and / or the stopping portion 111 are both in an arc shape, which is conducive to the hooking portion smoothly hooking onto the stopping portion 111 or detaching from the stopping portion 111.

[0329] During the closing process of the door body 30, the free end of the hook portion gradually approaches the stop portion 111. When the hook portion abuts against the stop portion 111, the hook portion is deformed under the action of the reaction force of the stop portion 111, so that the stop portion 111 enters the hook portion, and the free end of the hook portion enters the hook gap, so that the lock hook 420 is locked with the hinge plate 131, thereby realizing the locking of the door body 30 and the box body 110.

[0330] It is understandable that, during the opening process of the door body 30 , the interaction between the hook portion and the stop portion 111 is opposite to that during the closing process of the door body 30 , which will not be described in detail herein.

[0331] During the process of the door body 30 rotating and closing, the positioning center axis P passes through the two first inflection points U of the first trajectory groove 140, that is, the positioning center axis P is located in the first inner groove section, and the guide center axis Q passes through the second inflection point V of the second trajectory groove 150, and the guide center axis Q is located in the first outer groove section. The door body 30 can automatically close under the action of the hook part and the stop part 111.

[0332] For example, when the opening angle of the door body 30 is less than or equal to the second set angle, the door body 30 can be automatically closed under the action of the hook part and the stop part 111; or, when the opening angle of the door body 30 is less than or equal to 30 degrees, the door body 30 can be automatically closed under the action of the hook part and the stop part 111.

[0333] Alternatively, the positioning center axis P moves to any one of the two first inflection points U of the first trajectory groove 140, for example, the positioning center axis moves to the first inflection point U close to the second end of the first trajectory groove 140 or the first inflection point U close to the first end of the first trajectory groove 140, and / or the guide center axis Q moves to the second inflection point V of the second trajectory groove 150, and the door body 30 can be automatically closed under the action of the hook portion and the stop portion 111.

[0334] It can be understood that in the second stage or the third stage of the door body 30 rotating and closing, the door body 30 gradually approaches the box body 10 so that the lock hook 420 is separated from the stopper 111 .

[0335] Reference Figure 26-Figure 28 In some embodiments, in the hinge assembly 130 located at the lower end of the door body 30, the first hinge axis 160 and the second hinge axis 170 can be arranged on the surface of the fixed part 300 facing the movable part 400, and the first hinge axis 160 and the second hinge axis 170 can both extend upward in the vertical direction; at least one of the first hinge axis 160 and the second hinge axis 170 can be arranged between the first contact portion 310 and the inclined portion 320, and the first track groove 140 and the second track groove 150 can both be correspondingly arranged on the surface of the movable part 400 facing the fixed part 300.

[0336] It should be noted that, in the extension direction of the first hinge axis 160 and the second hinge axis 170, when the first hinge axis 160 is arranged between the first contact portion 310 and the inclined portion 320, the orthographic projection of the first hinge axis 160 is located at the first contact portion 310, and the remaining part of the orthographic projection of the first hinge axis 160 is located at the inclined portion 320; when the second hinge axis 170 is arranged between the first contact portion 310 and the inclined portion 320, the orthographic projection of the second hinge axis 170 is located at the first contact portion 310, and the remaining part of the orthographic projection of the second hinge axis 170 is located at the inclined portion 320.

[0337] For example, between the first contact portion 310 and the inclined portion 320, the plane where the first contact portion 310 is located can be used as a reference plane, the portion located on the reference plane is the first contact portion 310, and the portion whose height is lower than the reference plane is the inclined portion 320. The inclined portion 320 and the reference plane overlap to form a positioning line. For example, when the first hinge axis 160 is disposed between the first contact portion 310 and the inclined portion 320, the positioning line can pass through the first hinge axis 160, or the positioning line can also be tangent to or coincide with the edge of the first hinge axis 160, and when the second hinge axis 170 is disposed between the first contact portion 310 and the inclined portion 320, the positioning line can pass through the second hinge axis 170, or the positioning line can also be tangent to or coincide with the edge of the second hinge axis 170.

[0338] During the process of the door body 30 rotating to open or close, in the horizontal direction, the first hinge shaft moves relative to the first track groove 140 along the extension direction of the first track groove 140, and the second hinge shaft moves relative to the second track groove 150 along the extension direction of the second track groove 150; in the vertical direction, when the movable part 400 drives the door body 30 to move in the vertical direction through the abutment part 410, the fixed part 300 is relatively fixed to the door body 30, so that the first hinge shaft moves relative to the first track groove 140 in the vertical direction, and the second hinge shaft moves relative to the second track groove 150 in the vertical direction.

[0339] For example, when the movable part 400 drives the door body 30 to move upward through the abutment portion 410, part of the first hinge shaft 160 extends out of the first track groove 140, and the distance between the first hinge shaft 160 and the bottom surface of the first track groove 140 increases; part of the second hinge shaft 170 extends out of the second track groove 150, and the distance between the second hinge shaft 170 and the bottom surface of the second track groove 150 increases.

[0340] In some embodiments, the length of the first hinge axis 160 extending from the fixing member 300 can be equal to the length of the second hinge axis 170 extending from the fixing member 300, the depth of the first track groove 140 is equal to the depth of the second track groove 150, the length of the first hinge axis 160 extending from the fixing member 300 can also be greater than the length of the second hinge axis 170 extending from the fixing member 300, and the depth of the first track groove 140 is greater than the depth of the second track groove 150.

[0341] The length of the first hinge axis 160 extending from the fixing member 300 and the length of the second hinge axis 170 extending from the fixing member 300 can be set to be greater than or equal to 6 mm and less than or equal to 15 mm. For example, the length of the first hinge axis 160 extending from the fixing member 300 and the length of the second hinge axis 170 extending from the fixing member 300 can be set within any length range of 6 mm-8 mm, 8 mm-10 mm, 10 mm-12 mm, and 12 mm-15 mm to ensure the stability of the first hinge axis 160 and the second hinge axis 170 during the movement process.

[0342] It is easy to understand that the length of the first hinge axis 160 extending out of the first track groove 140 and the length of the second hinge axis 170 extending out of the second track groove 150 are equal to the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction, and the greater the length of the first hinge axis 160 located in the first track groove 140, the better the stability of the first hinge axis 160, and the greater the length of the second hinge axis 170 located in the second track groove 150, the better the stability of the second hinge axis 170.

[0343] The smaller the length of the first hinge axis 160 and the length of the second hinge axis 170 extending from the fixing member 300 are, the smaller the moment applied to the first hinge axis 160 and the second hinge axis 170 is, and the better the stability of the first hinge axis 160 and the second hinge axis 170 is.

[0344] For example, when the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction remains unchanged, the stability of the first hinge axis 160 in the first track groove 140 can be improved by increasing the length of the first hinge axis 160 and the depth of the first track groove 140, and the stability of the second hinge axis 170 in the second track groove 150 can be improved by increasing the length of the second hinge axis 170 and the depth of the second track groove 150, so as to reduce the possibility of the movable part 400 being separated from the fixed part 300.

[0345] For example, when the abutting portion 410 abuts against the second end of the inclined portion 320 or the second contact portion 330, the length of the first hinge axis 160 in the first track groove 140 is set as the first length of the first hinge axis 160, and the length of the second hinge axis 170 in the second track groove 150 is set as the first length of the second hinge axis 170; when the abutting portion 410 abuts against the first end of the inclined portion 320 or the first contact portion 310, the length of the first hinge axis 160 in the first track groove 140 is set as the second length of the first hinge axis 160, and the length of the second hinge axis 170 in the second track groove 150 is set as the second length of the second hinge axis 170.

[0346] Among them, the difference between the first length of the first hinge axis 160 and the second length of the first hinge axis 160 is equal to the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction, and the ratio of the first length of the first hinge axis 160 to the second length of the first hinge axis 160 can be set to be greater than or equal to 2 / 3 to ensure the stability of the first hinge axis 160 moving in the first track groove 140, and the ratio of the first length of the second hinge axis 170 to the second length of the second hinge axis 170 can be set to be greater than or equal to 2 / 3 to ensure the stability of the second hinge axis 170 moving in the second track groove 150.

[0347] For example, the length of the first hinge axis 160 may be greater than the length of the second hinge axis 170, the depth of the first track groove 140 may be greater than the depth of the second track groove 150, and when the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction is set to 2 mm, the length of the first hinge axis 160 may be set to be greater than or equal to 8 mm and less than or equal to 10 mm, for example, the length of the first hinge axis 160 may be set to 9 mm, the depth of the first track groove 140 may be set to be greater than or equal to 4 mm and less than or equal to 6 mm, for example, the depth of the first track groove 140 may be set to 5 mm;

[0348] The length of the second hinge axis 170 can be set to be greater than or equal to 10 mm and less than or equal to 12 mm, for example, the length of the second hinge axis 170 can be set to 11 mm, and the depth of the second track groove 150 can be set to be greater than or equal to 6 mm and less than or equal to 8 mm, for example, the depth of the second track groove 150 can be set to 7 mm.

[0349] When the abutting portion 410 abuts against the second end of the inclined portion 320 or the second contact portion 330, the end of the first hinge axis 160 away from the fixing member 300 can abut against the bottom surface of the first track groove 140, and the first length of the first hinge axis 160 is equal to 5 mm, and the end of the second hinge axis 170 away from the fixing member 300 can abut against the bottom surface of the second track groove 150, and the first length of the second hinge axis 170 is equal to 7 mm; when the abutting portion 410 moves to the first end of the inclined portion 320 or the first contact portion 310, the length of the first hinge axis 160 extending from the first track groove 140 is equal to 2 mm, the second length of the first hinge axis 160 is equal to 3 mm, the length of the second hinge axis 170 extending from the second track groove 150 is equal to 2 mm, and the second length of the second hinge axis 170 is equal to 5 mm.

[0350] Alternatively, the length of the first hinge axis 160 can also be equal to the length of the second hinge axis 170, and the depth of the first track groove 140 can be equal to the depth of the second track groove 150. When the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction is set to 2 mm, the length of the first hinge axis 160 and the second hinge axis 170 can be set to be greater than or equal to 10 mm and less than or equal to 12 mm. For example, the length of the first hinge axis 160 and the second hinge axis 170 can be set to 11 mm, and the depth of the first track groove 140 and the second track groove 150 can be set to be greater than or equal to 6 mm and less than or equal to 8 mm. For example, the depth of the first track groove 140 and the second track groove 150 can be set within a depth range of 6 mm-7 mm, or 7 mm-8 mm.

[0351] When the abutting portion 410 abuts against the second end of the inclined portion 320 or the second contact portion 330, the end of the first hinge axis 160 away from the fixing member 300 can abut against the bottom surface of the first track groove 140, and the first length of the first hinge axis 160 is equal to 7 mm, and the end of the second hinge axis 170 away from the fixing member 300 can abut against the bottom surface of the second track groove 150, and the first length of the second hinge axis 170 is equal to 7 mm; when the abutting portion 410 moves to the first end of the inclined portion 320 or the first contact portion 310, the length of the first hinge axis 160 extending from the first track groove 140 is equal to 2 mm, and the second length of the first hinge axis 160 is equal to 5 mm, the length of the second hinge axis 170 extending from the second track groove 150 is equal to 2 mm, and the second length of the second hinge axis 170 is equal to 5 mm.

[0352] For example, the angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the line connecting the first end of the inclined portion 320 and the second end of the inclined portion 320 can be set to be greater than or equal to 0 degrees and less than or equal to 15 degrees; for example, the angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the line connecting the first end of the inclined portion 320 and the second end of the inclined portion 320 can be set to any one of the angle ranges of 0 degrees to 5 degrees, 5 degrees to 10 degrees, and 10 degrees to 15 degrees to ensure the stability of the abutment portion 410 during the movement process along the inclined portion 320.

[0353] That is, the angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the extension direction of the inclined portion 320 can be set to be greater than or equal to 75 degrees and less than or equal to 105 degrees. The extension direction of the inclined portion 320 can be set perpendicular to the moving direction of the abutment 410 on the surface of the inclined portion 320. For example, the angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the extension direction of the inclined portion 320 can be set to any one of the angle ranges of 75 degrees-80 degrees, 80 degrees-85 degrees, 85 degrees-90 degrees, 90 degrees-95 degrees, 95 degrees-100 degrees, and 100 degrees-105 degrees to ensure the stability of the abutment 410 during the movement process along the inclined portion 320.

[0354] In the process of the abutting portion 410 obliquely moving downward from the first end of the inclined portion 320 to the second end of the inclined portion 320 , the moving direction of the abutting portion is relatively parallel to the line connecting the first hinge axis 160 and the second hinge axis 170 ;

[0355] It should be noted that relative parallelism can be understood as that the angle formed by the moving direction of the abutment portion 410 on the surface of the inclined portion 30 and the line connecting the first hinge axis 160 and the second hinge axis 170 is smaller. For example, the angle formed by the moving direction of the abutment portion 410 on the surface of the inclined portion 30 and the line connecting the first hinge axis 160 and the second hinge axis 170 can be set to be greater than or equal to 0 degrees and less than or equal to 15 degrees, so as to make the movement process of the abutment portion 410 more stable.

[0356] The diameter of the first hinge axis 160 and the diameter of the second hinge axis 170 can be set to be the same, or the diameter of the first hinge axis 160 and the diameter of the second hinge axis 170 can also be set to be different. For example, one of the first hinge axis 160 and the second hinge axis 170 serves as the main axis of the gravity self-closing structure, and the other of the first hinge axis 160 and the second hinge axis 170 serves as the secondary axis of the gravity self-closing structure. The force on the main axis of the gravity self-closing structure is greater than the force on the secondary axis of the gravity self-closing structure. Then, the diameter of the main axis of the gravity self-closing structure is greater than the diameter of the secondary axis of the gravity self-closing structure, so as to ensure the stability of the gravity self-closing structure and reduce the possibility of deformation of the main axis of the gravity self-closing structure.

[0357] The diameters of the first hinge shaft 160 and the second hinge shaft 170 can be set to be greater than or equal to 7 mm and less than or equal to 9 mm. For example, the diameters of the first hinge shaft 160 and the second hinge shaft 170 can be set within a diameter range of 7 mm-8 mm, or 8 mm-9 mm.

[0358] Alternatively, the diameters of the first hinge shaft 160 and the second hinge shaft 170 may be set within a diameter range of 6.6 mm to 6.9 mm, or 7.3 mm to 7.9 mm, 8.1 mm to 8.9 mm, 9.1 mm to 9.9 mm, and 10.1 mm to 10.9 mm.

[0359] The material of the first hinge shaft 160 and the material of the second hinge shaft 170 can both be set to cold forged steel, and the yield strength of the first hinge shaft 160 and the second hinge shaft 170 is greater than or equal to 260MPa and less than or equal to 400MPa, so as to ensure the strength of the first hinge shaft 160 and the second hinge shaft 170 and reduce the possibility of breakage of the first hinge shaft 160 and the second hinge shaft 170.

[0360] It is easy to understand that the diameters of the first hinge shaft 160 and the second hinge shaft 170 can be adjusted according to the thickness of the door body 30. When the thickness of the door body 30 is greater, the diameters of the first hinge shaft 160 and the second hinge shaft 170 can be larger, and the assembly space of the first hinge shaft 160 and the second hinge shaft 170 is larger.

[0361] For example, the ratio of the diameter of the first hinge shaft 160 and the second hinge shaft 170 to the thickness of the door body 30 can be set to be greater than or equal to one tenth and less than or equal to one sixth, so as to ensure the assembly space of the first hinge shaft 160 and the second hinge shaft 170 and reduce the possibility of fracture of the first hinge shaft 160 and the second hinge shaft 170. For example, the thickness of the door body 30 can be set to 60 mm, and the diameter of the first hinge shaft 160 and the second hinge shaft 170 can be set to 8 mm.

[0362] It is easy to understand that when the ratio of the diameter of the first hinge shaft 160 and the second hinge shaft 170 to the thickness of the door body 30 is larger, the possibility of the first hinge shaft 160 and the second hinge shaft 170 breaking is smaller, and the rotation opening or rotation closing of the door body 30 is more stable; when the ratio of the diameter of the first hinge shaft 160 and the second hinge shaft 170 to the thickness of the door body 30 is smaller, the assembly space of the first hinge shaft 160 and the second hinge shaft 170 is larger, and the arrangement of the first track groove 140 and the second track groove 150 is more flexible.

[0363] During the process of rotating the door body 30 to open or close, in the horizontal direction, the first hinge shaft 160 can move relative to the first track groove 140 along the extension direction of the first track groove 140, and the second hinge shaft 170 can move relative to the second track groove 150 along the extension direction of the second track groove 150.

[0364] In the vertical direction, the first hinge shaft 160 moves up and down relative to the first track groove 140, and the second hinge shaft 170 moves up and down relative to the second track groove 150, so that the first hinge shaft 160 and the second hinge shaft 170 need to bear forces from the horizontal direction and the vertical direction at the same time, and the diameters of the first hinge shaft 160 and the second hinge shaft 170 are set to be greater than or equal to 7 mm, and the yield strength of the first hinge shaft 160 and the second hinge shaft 170 is greater than or equal to 260Mpa, so as to reduce the possibility of deformation of the first hinge shaft 160 and the second hinge shaft 170 due to force, thereby improving the stability of the first hinge shaft 160 and the second hinge shaft 170.

[0365] The angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the line connecting the first end of the inclined portion 320 and the second end of the inclined portion 320 can be set to be greater than or equal to 0 degrees and less than or equal to 15 degrees; that is, the angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the extending direction of the inclined portion 320 can be set to be greater than or equal to 75 degrees and less than or equal to 105 degrees. For example, in the horizontal plane, the angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the extending direction of the door body is greater than or equal to 15 degrees and less than or equal to 45 degrees.

[0366] When the distance between the first hinge axis 160 and the second hinge axis 170 is constant, the greater the angle between the line connecting the first hinge axis 160 and the second hinge axis 170 and the line connecting the first end of the inclined portion 320 and the second end of the inclined portion 320, the greater the layout space required for the gravity self-closing structure and the greater the required thickness of the door body 30.

[0367] It should be noted that the distance between the first hinge axis 160 and the second hinge axis 170 can be greater than or equal to 16 mm and less than or equal to 20 mm. For example, the distance between the first hinge axis 160 and the second hinge axis 170 can be set within any distance range of 16 mm-17 mm, 17 mm-18 mm, 18 mm-19 mm, and 19 mm-20 mm, so as to make the arrangement between the first track groove 140 and the second track groove 150 more compact, thereby increasing the diameter of the first hinge axis 160 and the second hinge axis 170 and improving the stability of the first hinge axis 160 and the second hinge axis 170.

[0368] It is easy to understand that the weight of the door body 30 can be set to be greater than or equal to 10 kg, so as to improve the self-closing effect of the gravity self-closing structure utilizing the gravity of the door body 30, and when the weight of the door body 30 is greater than or equal to 10 kg, by setting the diameter of the first hinge shaft 160 and the second hinge shaft 170 to be greater than or equal to 7 mm, and the yield strength of the first hinge shaft 160 and the second hinge shaft 170 is greater than or equal to 260 MPa, the possibility of deformation of the first hinge shaft 160 and the second hinge shaft 170 due to force is reduced.

[0369] When the thickness of the door body 30 increases, the layout space of the gravity self-closing structure becomes larger, the distance between the first hinge axis 160 and the second hinge axis 170 increases, and the diameters of the first hinge axis 160 and the second hinge axis 170 may also increase. By setting the ratio of the diameters of the first hinge axis 160 and the second hinge axis 170 to the thickness of the door body 30 to be greater than or equal to one-tenth and less than or equal to one-sixth, the layout space of the gravity self-closing structure is ensured, and the first hinge axis 160 and the second hinge axis 170 in the gravity self-closing structure can obtain a larger diameter to improve the strength of the first hinge axis 160 and the second hinge axis 170.

[0370] In some embodiments, in the hinge assembly 130 located at the upper end of the door body 30, the first hinge shaft 160 and the second hinge shaft 170 can be arranged on the hinge plate 131, and the first hinge shaft 160 and the second hinge shaft 170 extend downward in the vertical direction, and the door body 30 is correspondingly provided with a first track groove 140 and a second track groove 150. When the movable part 400 drives the door body 30 to move upward through the abutment part 410, part of the first hinge shaft 160 extends into the first track groove 140, and the distance between the first hinge shaft 160 and the bottom surface of the first track groove 140 is reduced; part of the second hinge shaft 170 extends into the second track groove 150, and the distance between the second hinge shaft 170 and the bottom surface of the second track groove 150 is reduced.

[0371] For example, when the abutment portion 410 abuts against the first contact portion 310 or the second contact portion 330, there is a first interval between the first hinge axis 160 and the bottom surface of the first track groove 140, and there is a second interval between the second hinge axis 170 and the bottom surface of the second track groove 150. The first interval and the second interval can be determined according to the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction, and the first interval and the second interval are greater than or equal to the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction.

[0372] For example, the size of the first interval and the second interval can be set to be greater than or equal to 3 mm and less than or equal to 5 mm, and the size of the first interval and the second interval can be set within any interval range of 3 mm-3.5 mm, 3.5 mm-4 mm, 4 mm-4.5 mm, and 4.5 mm-5 mm, so as to reduce the possibility of mutual collision between the first hinge axis 160 and the bottom surface of the first track groove 140, and the second hinge axis 170 and the bottom surface of the second track groove 150 by setting a certain margin through the first interval and the second interval.

[0373] Reference Fig.11 The upper end of the door body 30 may be provided with an end cover 31, which may be relatively fixedly arranged on the door body 30, and in the thickness direction of the door body 30, the width of the end cover 31 is equal to the thickness of the door body 30; the end cover 31 may be provided with a sleeve 32, which may be embedded in the end cover 31, and the top surface of the sleeve 32 is concavely arranged relative to the top surface of the end cover 31, and the height difference between the top surface of the end cover 31 and the top surface of the sleeve 32 may be greater than or equal to 0.5 mm and less than or equal to 1.5 mm. For example, the height difference between the top surface of the end cover 31 and the top surface of the sleeve 32 may be set within any one of the height difference ranges of 0.5 mm-0.8 mm, 0.8 mm-1 mm, 1 mm-1.2 mm, and 1.2 mm-1.5 mm.

[0374] In the vertical direction, the height of the top surface of the sleeve 32 is lower than the height of the top surface of the box body 10, and the height difference between the top surface of the box body 10 and the top surface of the sleeve 32 is greater than or equal to 4 mm and less than or equal to 7 mm. For example, the height difference between the top surface of the box body 10 and the top surface of the sleeve 32 can be set to any one of the height difference ranges of 4 mm-5 mm, 5 mm-6 mm, and 6 mm-7 mm, so that the door body 30 drives the sleeve 32 to move up and down in the vertical direction.

[0375] The sleeve 32 is provided with a first track groove 140 and a second track groove 150, and the sleeve 32 is correspondingly arranged on the hinge plate 131, so that the first hinge shaft 160 located on the hinge plate 131 moves relative to the first track groove 140 of the sleeve 32, and the second hinge shaft 170 located on the hinge plate 131 moves relative to the second track groove 150 of the sleeve 32.

[0376] During the process of rotating the door body 30 to open or close, the hinge assembly 130 located at the upper end of the door body 30, in the horizontal direction, the first hinge shaft 160 can move relative to the first track groove 140 along the extension direction of the first track groove 140, and the second hinge shaft 170 can move relative to the second track groove 150 along the extension direction of the second track groove 150; in the vertical direction, the first hinge shaft 160 moves up and down relative to the first track groove 140, and the second hinge shaft 170 moves up and down relative to the second track groove 150.

[0377] It should be noted that the first hinge axis 160 and the second hinge axis 170 located at the upper end of the door body 30 correspond to the first hinge axis 160 and the second hinge axis 170 in the gravity self-closing structure, the first hinge axis 160 located at the upper end of the door body 30 is coaxially arranged with the first hinge axis 160 in the gravity self-closing structure, and the second hinge axis 170 located at the upper end of the door body 30 is coaxially arranged with the second hinge axis 170 in the gravity self-closing structure, so as to make the rotation process of the door body 30 more stable.

[0378] Furthermore, the diameter of the first hinge shaft 160 located at the upper end of the door body 30 may be less than or equal to the first hinge shaft 160 in the gravity self-closing structure, and the diameter of the second hinge shaft 170 located at the upper end of the door body 30 may be less than or equal to the second hinge shaft 170 in the gravity self-closing structure. For example, the thickness of the door body 30 may be set to 60 mm, the diameters of the first hinge shaft 160 and the second hinge shaft 170 in the gravity self-closing structure may be set to 8 mm, and the diameters of the first hinge shaft 160 located at the upper end of the door body 30 and the second hinge shaft 170 located at the upper end of the door body 30 may both be set to 6 mm or 7 mm.

[0379] In addition, the hinge assembly 130 located at the upper end of the door body 30 and the hinge plate 131 may be provided with a gasket 132, and the gasket 132 is used to fix the first hinge shaft 160 and the second hinge shaft 170 to make the installation of the first hinge shaft 160 and the second hinge shaft 170 more stable; the gasket may be sleeved on the outside of the first hinge shaft 160 and the second hinge shaft 170, and the number of gaskets may be set to one or two. For example, the first hinge shaft 160 and the second hinge shaft 170 may be fixed respectively by two gaskets, or the first hinge shaft 160 and the second hinge shaft 170 may be fixed simultaneously by one gasket.

[0380] The thickness of the gasket can be set to be greater than or equal to 0.6 mm and less than or equal to 1.5 mm. For example, the thickness of the gasket can be set within any thickness range of 0.6 mm-0.8 mm, 0.8 mm-1 mm, 1 mm-1.2 mm, and 1.2 mm-1.5 mm.

[0381] When the thickness of the gasket is larger, the connection between the first hinge shaft 160 and the second hinge shaft 170 and the hinge plate 131 is more stable; when the thickness of the gasket is smaller, the length of the first hinge shaft 160 extending out of the gasket is longer, and the length of the second hinge shaft 170 extending out of the gasket is longer; when the depth of the sleeve remains unchanged, the thickness of the gasket is smaller, the total length of the first hinge shaft 160 and the second hinge shaft 170 is smaller, and the structure of the hinge assembly 130 located at the upper end of the door body 30 is more compact, thereby reducing the assembly space required for the hinge assembly 130 located at the upper end of the door body 30.

[0382] Reference Figure 26-Figure 28In some embodiments, the fixed member 300 includes a first contact portion 310, an inclined portion 320 and a third contact portion 330 connected to each other. The fixed member 300 contacts the movable member 400 through the first contact portion 310, the inclined portion 320 and the third contact portion 330. The first surface of the fixed member 300 faces the movable member 400, and the second surface of the fixed member 300 faces away from the movable member 400. The surfaces of the first contact portion 310, the inclined portion 320 and the third contact portion 330 facing the movable member 400 jointly form the first surface of the fixed member 300 to increase the contact area between the movable member 400 and the fixed member 300 and improve the stability of the contact between the movable member 400 and the fixed member 300.

[0383] The first contact portion 310 and the second contact portion 330 can be arranged in parallel in the horizontal direction, and the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction can be set to be greater than or equal to 1 mm and less than or equal to 5 mm. For example, the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction can be set within any height difference range of 1 mm-1.5 mm, 1.5 mm-2 mm, 2 mm-2.5 mm, 2.5 mm-3 mm, 3 mm-3.5 mm, 3.5 mm-4 mm, 4 mm-4.5 mm, and 4.5 mm-5 mm to reduce the user's sense of frustration during the door closing process.

[0384] Alternatively, in some embodiments, at least one of the first contact portion 310 and the second contact portion 320 may also be tilted, and the tilting direction of the first contact portion 310 and the second contact portion 320 may be the same as or different from the tilting direction of the inclined portion 320, and the tilting angle of the first inclined portion 320 and the tilting angle of the second contact portion 320 may be smaller than or greater than the tilting angle of the inclined portion 320, so as to further improve the closing effect of the gravity self-closing structure.

[0385] The height difference between the first end of the inclined portion 320 and the second end of the inclined portion 320 in the vertical direction can be set to be greater than or equal to 1 mm and less than or equal to 5 mm. For example, the height difference between the first end of the inclined portion 320 and the second end of the inclined portion 320 in the vertical direction can be set within any height difference range of 1 mm-1.5 mm, 1.5 mm-2 mm, 2 mm-2.5 mm, 2.5 mm-3 mm, 3 mm-3.5 mm, 3.5 mm-4 mm, 4 mm-4.5 mm, and 4.5 mm-5 mm to reduce the user's sense of frustration during the door closing process.

[0386] It is easy to understand that the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction, and the height difference between the first end of the inclined portion 320 and the second end of the inclined portion 320 in the vertical direction can be equal to the moving distance of the door body 30 in the vertical direction during the process of rotational opening or rotational closing; the smaller the height difference between the first contact portion 310 and the second contact portion 330 in the vertical direction, and the height difference between the first end of the inclined portion 320 and the second end of the inclined portion 320 in the vertical direction, the smaller the moving distance of the door body 30 in the vertical direction during the process of rotational opening or rotational closing.

[0387] Moreover, the smaller the distance that the door body 30 moves in the vertical direction during the process of rotational opening or rotational closing, the less frustration the user feels during the process of opening and closing the door; the larger the distance that the door body 30 moves in the vertical direction during the process of rotational opening or rotational closing, the better the gravity self-closing effect of the door body 30, and the greater the force required for the user to open the door.

[0388] The smaller the inclination angle of the inclined portion 320 is, the less frustration the user feels during the door closing process. The inclination angle of the inclined portion 320 can be set to be less than or equal to 40 degrees. For example, the inclination angle of the inclined portion 320 can be set to any one of the inclination angle ranges of 10 degrees-15 degrees, 15 degrees-20 degrees, 20 degrees-25 degrees, 25 degrees-30 degrees, 30 degrees-35 degrees, and 35 degrees-40 degrees to reduce the frustration the user feels during the door closing process.

[0389] The inclination angle of the inclined portion 320 can be determined according to the vertical height difference between the first end of the inclined portion 320 and the second end of the inclined portion 320 in the vertical direction, and the horizontal distance between the first end of the inclined portion 320 and the second end of the inclined portion 320 in the horizontal direction, that is, when the vertical height difference between the first end of the inclined portion 320 and the second end of the inclined portion 320 is constant, the greater the horizontal distance between the first end of the inclined portion 320 and the second end of the inclined portion 320, the smaller the inclination angle of the inclined portion 320; when the horizontal distance between the first end of the inclined portion 320 and the second end of the inclined portion 320 is constant, the greater the vertical height difference between the first end of the inclined portion 320 and the second end of the inclined portion 320, the greater the inclination angle of the inclined portion 320.

[0390] It should be noted that the first end of the inclined portion 320 can be determined by a reference plane of the plane where the first contact portion 310 is located; for example, between the first contact portion 310 and the inclined portion 320, the plane where the first contact portion 310 is located can be used as a reference plane, the portion located on the reference plane is the first contact portion 310, and the portion whose height is lower than the reference plane is the inclined portion 320. The inclined portion 320 coincides with the reference plane to form a positioning line, that is, the first end of the inclined portion 320 forms the above-mentioned positioning line, and the position of the positioning line can be used to refer to the first end of the inclined portion 320.

[0391] The second end of the inclined portion 320 can be configured as follows: when the door body 30 is in a closed state, the horizontal plane where the bottom end of the abutment portion 410 disposed on the door body 30 is located is configured as a reference plane, and the intersection of the reference plane and the inclined portion 320 is the second end of the inclined portion 320; and the bottom end of the inclined portion 320 can be used to connect to the second contact portion 330.

[0392] It is easy to understand that when the length of the inclined portion 320 is longer, that is, when the door body 30 is in a closed state, the first part of the inclined portion 320 can be located above the reference surface, and the first part of the inclined portion 320 is used to contact the abutment portion 410; the second part of the inclined portion 320 can be located below the reference surface, and the second part of the inclined portion 320 can be used to connect the hinge plate 131 and other structures, then the first end of the inclined portion 320 and the second end of the inclined portion 320 are both the first part of the inclined portion 320, and the second part of the inclined portion 320 will not be used to contact the abutment portion 410, so that the second end of the inclined portion 320 can be connected to the second contact portion 330 through the second part of the inclined portion 320.

[0393] Reference Fig.26 The inclined portion 320 can be set as a planar inclined portion 320, and the planar inclined portion 320 has a plane. The first end of the planar inclined portion 320 can be directly connected to the first contact portion 310, or the first end of the planar inclined portion 320 can also be connected to the first contact portion 310 by means of an arc transition or the like. The planar inclined portion 320 can have the above-mentioned first and second parts connected to each other, and the first part of the planar inclined portion 320 can be used to contact the abutting portion 410, and the second part of the planar inclined portion 320 can be used to connect to the hinge plate 131 and other mounting base structures.

[0394] Alternatively, the bottom end of the planar inclined portion 320 can be used to form the second end of the planar inclined portion 320, that is, the bottom end of the planar inclined portion 320 can be used to connect to the hinge plate 131 and other mounting base structures, or the bottom end of the planar inclined portion 320 can also be used to connect to the second contact portion 330.

[0395] Reference Fig. 27In some embodiments, the inclined portion 320 can also be set as an arc-shaped inclined portion 320, and the arc-shaped inclined portion 320 has an arc-shaped surface. The arc-shaped inclined portion 320 can be protruded away from the first contact portion 310, that is, from the first end of the arc-shaped inclined portion 320 to the second end of the arc-shaped inclined portion 320, the inclination angle of the arc-shaped inclined portion 320 gradually increases; in the process of rotating and opening the door body 30, the abutment portion 410 needs to move from the second end of the arc-shaped inclined portion 320 to the first end of the arc-shaped inclined portion 320. Since the inclination angle of the part of the arc-shaped inclined portion 320 close to the second end is larger, the process of moving the abutment portion 410 to the arc-shaped inclined portion 320 is more laborious, further improving the self-closing effect of the gravity self-closing structure.

[0396] Alternatively, the arc-shaped inclined portion 320 can also be set inwardly away from the first contact portion 310, that is, the inclination angle of the arc-shaped inclined portion 320 gradually decreases from the first end of the arc-shaped inclined portion 320 to the second end of the arc-shaped inclined portion 320. During the process of rotating and opening the door body 30, the abutment portion 410 needs to move from the second end of the arc-shaped inclined portion 320 to the first end of the arc-shaped inclined portion 320. When the weight of the door body 30 is large or the inclination angle of the arc-shaped inclined portion 320 is large, the gravity self-closing effect of the gravity self-closing structure can be ensured. Since the inclination angle of the part of the arc-shaped inclined portion 320 close to the second end is small, the process of moving the abutment portion 410 to the arc-shaped inclined portion 320 is more labor-saving, making it more convenient for the user to rotate and open the door body 30.

[0397] In some embodiments, the inclined portion 320 may also have multiple planes or multiple arcuate surfaces, or the inclined portion 320 may also have at least one plane and at least one arcuate surface, and both the planes and the arcuate surfaces are used to contact the abutting portion 410 .

[0398] The inclined portion 320 may have a plurality of planes, and the plurality of planes are arranged in sequence along the vertical direction, and at least two of the plurality of planes have different inclination angles. For example, from the first end of the inclined portion 320 to the second end of the inclined portion, the inclination angles of the plurality of planes may gradually decrease. When the weight of the door body 30 is large or the inclination angle of the arc-shaped inclined portion 320 is large, the gravity self-closing effect of the gravity self-closing structure can be ensured. Since the inclination angle of the partial plane of the inclined portion 320 close to the second end is small, the process of moving the abutting portion 410 to the inclined portion 320 is more labor-saving, and the process of the user rotating to open the door body 30 is more convenient.

[0399] For example, the inclination angles of multiple planes can gradually increase from the first end of the inclined portion 320 to the second end of the inclined portion. During the process of rotating and opening the door body 30, the abutment portion 410 needs to move from the second end of the inclined portion 320 to the first end of the inclined portion 320. Since the inclination angle of the partial plane of the inclined portion 320 close to the second end is larger, the process of moving the abutment portion 410 to the inclined portion 320 is more laborious, thereby further improving the self-closing effect of the gravity self-closing structure.

[0400] The inclined portion 320 can have multiple arcuate surfaces, and the arcuate surface can be convexly arranged away from the first contact portion 310, and the inclination angle of the upper part of the arcuate surface is greater than the inclination angle of the lower part of the arcuate surface; or, the arcuate surface can also be concavely arranged away from the first contact portion 310, and the inclination angle of the upper part of the arcuate surface is less than the inclination angle of the lower part of the arcuate surface.

[0401] Reference Fig.28 In some embodiments, the fixing member 300 may also be provided with at least one recessed structure, and the recessed structure may be provided in at least one of the first contact portion 310, the inclined portion 320 and the second contact portion 330. For example, the recessed structure may be provided in the inclined portion 320, and the number of recessed structures may be set to be multiple, and multiple recessed structures may be uniformly provided in the inclined portion 320 to increase the stress on the inclined portion 320.

[0402] When the abutting portion 410 contacts the inclined portion 320, the abutting portion 410 will transfer part of the gravity of the door body 30 to the fixing member 300. By setting a recessed structure, the contact area between the abutting portion 410 and the inclined portion 320 can be reduced, so that the stress between the abutting portion 410 and the inclined portion 320 is more concentrated, thereby improving the self-closing effect of the gravity self-closing structure.

[0403] Reference Fig.29 and Fig.30 In some embodiments, the abutment portion 410 can be reused to form the first track groove 140 and the second track groove 150, that is, the first hinge axis 160 and the second hinge axis 170 can be passed through the abutment portion 410, so that at least a portion of the abutment portion 410 can surround the first hinge axis 160 and the second hinge axis 170, so that the first hinge axis 160 and the second hinge axis 170 can be inside the abutment portion 410, and the contact area between the abutment portion 410 and the fixing member 300 can be increased, thereby increasing the relative stability of the abutment portion 410 when the abutment portion 410 and the fixing member 300 produce relative movement.

[0404] Reference Fig.31 and Fig.32In some embodiments, the abutment portion may be formed with a first side wall 414 and a second side wall 415, the inner surface of the first side wall 414 is surrounded by a first track groove 140, and the inner surface of the second side wall 415 is surrounded by a second track groove 150, so as to surround the first hinge axis 160 through the first side wall 414 and surround the second hinge axis 170 through the second side wall 415, thereby increasing the contact area between the abutment portion 410 and the fixing member 300 and increasing the stability of the abutment portion 410 during the movement process.

[0405] The first side wall and the second side wall are configured as follows: the width of the first side wall 414 is greater than or equal to 1 mm, and / or the width of the second side wall 415 is greater than or equal to 1 mm; along the extension direction of the first track groove 140, the width of the first side wall 414 can be uniformly set, and the width of the first side wall 414 can be set within any width range of 1 mm-1.2 mm, 1.2 mm-1.4 mm, 1.4 mm-1.6 mm, 1.6 mm-1.8 mm, 1.8 mm-2 mm, and 2 mm-2.2 mm; along the extension direction of the second track groove 150, the width of the second side wall 415 can be uniformly set, and the width of the second side wall 415 can be set within any width range of 1 mm-1.2 mm, 1.2 mm-1.4 mm, 1.4 mm-1.6 mm, 1.6 mm-1.8 mm, 1.8 mm-2 mm, and 2 mm-2.2 mm.

[0406] It is easy to understand that when the width of the first side wall 414 and the width of the second side wall 415 are larger, the contact area between the abutting portion 410 and the fixing member 300 is larger, so that the movement process of the abutting portion 410 relative to the fixing member 300 is more stable.

[0407] Alternatively, the first side wall and the second side wall are configured as follows: along the extension direction of the first track groove 140, the width of at least part of the first side wall 414 is greater than or equal to 1 mm, and / or, along the extension direction of the second track groove 150, the width of at least part of the second side wall 415 is greater than or equal to 1 mm.

[0408] Along the extension direction of the first track groove 140, the width of the first side wall 414 may be uneven, and the width of at least part of the first side wall 414 may be set within any width range of 1 mm-1.2 mm, 1.2 mm-1.4 mm, 1.4 mm-1.6 mm, 1.6 mm-1.8 mm, 1.8 mm-2 mm, and 2 mm-2.2 mm. Along the extension direction of the second track groove 150, the width of the second side wall 415 may be uneven, and the width of at least part of the second side wall 415 may be set within any width range of 1 mm-1.2 mm, 1.2 mm-1.4 mm, 1.4 mm-1.6 mm, 1.6 mm-1.8 mm, 1.8 mm-2 mm, and 2 mm-2.2 mm.

[0409] The first side wall 414 and the second side wall 415 are spaced apart from each other, or the first side wall 414 and the second side wall 415 are connected; or the first side wall 414 is connected to the second side wall 415, and at least a portion of the first side wall 414 is reused to form the second side wall 415; or the first side wall 414 is connected to the second side wall 415, and at least a portion of the second side wall 415 is reused to form the first side wall 414, so as to reduce the assembly space required for the abutting portion 410 and simplify the structure of the abutting portion 410.

[0410] In some embodiments, the number of abutment portions can be set to multiple, and the multiple abutment portions 410 include a first abutment portion 410a and at least one second abutment portion 410b, the first abutment portion 410a forms a first track groove 140 and a second track groove 150; the second abutment portion 410b is arranged on the surface of the movable part 400 facing the fixed part 300, and the second abutment portion 410b is arranged flush with the first abutment portion 410a away from the surface of the movable part 400, and the movable part 400 abuts against the fixed part 300 through the first abutment portion 410a and the second abutment portion 410b.

[0411] Along the extension direction of the first trajectory groove 140, at least part of the second abutment portion 410b is arranged on the side of the first trajectory groove 140 away from the second trajectory groove 150; and / or, along the extension direction of the second trajectory groove 150, at least part of the second abutment portion 410b is arranged on the side of the second trajectory groove 150 away from the first trajectory groove 140, so as to make the movement process of the movable part 400 relative to the fixed part 300 more stable through the first abutment portion 410a and the second abutment portion 410b.

[0412] Reference Fig.33 In some embodiments, at least one of the first trajectory groove 140 and the second trajectory groove 150 may extend to the abutment portion 410 , that is, the abutment portion 410 may form at least one of the first trajectory groove 140 and the second trajectory groove 150 , for example, both the first trajectory groove 140 and the second trajectory groove 150 extend to the abutment portion 410 .

[0413] Along the extension direction of the first track groove, at least part of the abutment portion 410 is arranged on the side of the first track groove 140 away from the second track groove 150; and / or, along the extension direction of the second track groove 150, at least part of the abutment portion 410 is arranged on the side of the second track groove 150 away from the first track groove 140.

[0414] By way of example, the abutment portion 410 may be provided with a first abutment surface 411 and a second abutment surface 412 that are connected to each other, the first abutment surface 411 may be arranged parallel to the horizontal plane, the first abutment surface 411 may be parallel to the first contact portion 310 and the second contact portion 330, the second abutment surface 412 may be arranged inclined relative to the vertical direction, the second abutment surface 412 may be arranged parallel to the inclined portion 320, so as to make the movement process of the abutment portion 410 more stable, and the connection position of the first abutment surface 411 and the second abutment surface 412 can be used to represent the bottom end position of the abutment portion 410.

[0415] The following describes the movement process of the abutting portion 410 by taking the bottom of the abutting portion 410 abutting against the first contact portion 310 as an example.

[0416] For example, during the process of rotating and opening the door body 30, the first abutting surface 411 of the abutting portion 410 abuts against the second contact portion 330, so that the abutting portion 410 can move horizontally from the second contact portion 330 to the second end of the inclined portion 320, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 320, and the abutting portion 410 moves obliquely upward from the second end of the inclined portion 320 to the first end of the inclined portion 320, and then moves to the first contact portion 310 through the first end of the inclined portion 320, so that the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 310, and the first abutting surface 411 can move in the horizontal direction relative to the first contact surface, thereby realizing the opening process of the door body 30.

[0417] During the process of rotating and closing the door body 30, the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 310, and the abutting portion 410 can move horizontally from the first contact portion 310 to the first end of the inclined portion 320, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 320, and the abutting portion 410 moves obliquely downward from the first end of the inclined portion 320 to the second end of the inclined portion 320, and then moves to the second contact portion 330 through the second end of the inclined portion 320, so that the first abutting surface 411 of the abutting portion 410 abuts against the second contact portion 330, and the first abutting surface 411 can move in the horizontal direction relative to the second contact surface, thereby realizing the closing process of the door body 30.

[0418] The first portion of the first track groove 140 is located on the first abutting surface 411 , and the second portion of the first track groove 140 is located on the second abutting surface 412 ; and / or the first portion of the second track groove 150 is located on the first abutting surface 411 , and the second portion of the second track groove 150 is located on the second abutting surface 412 .

[0419] During the process of rotating and closing the door body 30, the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 310, and the abutting portion 410 can move horizontally from the first contact portion 310 to the first end of the inclined portion 320, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 320, and the abutting portion 410 moves obliquely downward from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the first hinge axis 140 and the second hinge axis 150 can be located in the first abutting surface 411 or the second abutting surface 412, thereby making the movement process of the movable part 400 more stable.

[0420] Exemplarily, the abutment portion 410 may also be provided with a third abutment surface 413, which is connected to one end of the second abutment surface 412 facing away from the first abutment surface 411, and the third abutment surface 413 may be arranged parallel to the first contact portion 310, that is, the third abutment surface 413 may be arranged parallel to the first abutment surface 411.

[0421] Alternatively, the movable member 400 further has the third abutting surface 413 , which is connected to the first end of the second abutting surface 412 ; when the door body 30 is in a closed state, the third abutting surface 413 faces the first contact portion 310 .

[0422] The first portion of the first trajectory groove 140 is located at the first abutment surface 411, the second portion of the first trajectory groove 140 is located at the second abutment surface 412, and the third portion of the first trajectory groove 140 is located at the third abutment surface 413; and / or, the first portion of the second trajectory groove 150 is located at the first abutment surface 411, the second portion of the second trajectory groove 150 is located at the second abutment surface 412, and the third portion of the second trajectory groove 150 is located at the third abutment surface 413.

[0423] During the process of rotating and closing the door body 30, the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 310, and the abutting portion 410 can move horizontally from the first contact portion 310 to the first end of the inclined portion 320, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 320, and the abutting portion 410 moves obliquely downward from the first end of the inclined portion 320 to the second end of the inclined portion 320, and the first hinge axis 140 and the second hinge axis 150 can be located in the first abutting surface 411 or the second abutting surface 412 or the third abutting surface 413, thereby making the movement process of the movable part 400 more stable.

[0424] During the process of rotating the door body 30 to open or close, when the abutting portion 410 faces the second contact portion 330, the abutting portion 410 can also be spaced apart from the second contact portion 330, and there is a gap between the first abutting surface 411 of the abutting portion 410 and the second contact portion 330, and the third abutting surface 413 can abut against the first contact portion 310.

[0425] Alternatively, during the process of rotating the door body 30 to open or close, when the abutting portion 410 is directed toward the second contact portion 330, the abutting portion 410 can also abut against the second contact portion 330, the first abutting surface 411 abuts against the second contact portion 330, and the third abutting surface 413 can abut against the first contact portion 310, so that the movable part 400 can abut against the second contact portion 330 through the first abutting surface 411, and abut against the first contact portion 310 through the third abutting surface 413, thereby increasing the contact area between the abutting portion 410 and the fixed part 300, and making the movement process of the movable part 400 more stable.

[0426] During the process of the door body 30 rotating and closing, the lower end of the door body 30 is spaced apart from the top surface of the fixing member 300. The distance between the lower end of the door body 30 and the top surface of the fixing member 300 can be set to be greater than or equal to 0.5 mm and less than or equal to 2.5 mm. For example, the distance between the lower end of the door body 30 and the top surface of the fixing member 300 can be set to any distance range of 0.5 mm-1 mm, 1 mm-1.5 mm, 1.5 mm-2 mm, and 2 mm-2.5 mm. Moreover, the smaller the distance between the lower end of the door body 30 and the top surface of the fixing member 300, the more compact the overall structure of the gravity self-closing structure.

[0427] Reference Fig.31 and Fig.32 The number of the pushing structures can be set to one, the number of the abutting portions 410 can be set to multiple, and the multiple abutting portions 410 move in the pushing structure at the same time, so that the relative movement process between the movable member 400 and the fixed member 300 is more stable.

[0428] Reference Fig.33 It should be noted that, in the movable member 400, the depth of the first track groove 140 and the depth of the second track groove 150 can be adjusted according to the position of the abutting portion 410. For example, in other embodiments, the first track groove 140 may include a first portion and a second portion connected to each other. When the abutting portion 410 abuts against the first contact portion 310 and the inclined portion 320, the first hinge shaft 160 is located in the first portion of the first track groove 140.

[0429] When the abutting portion 410 abuts against the second contact portion 330 , the first hinge axis 160 is located in the second portion of the first track groove 140 , and the length of the first hinge axis 160 in the second portion of the first track groove 140 is smaller than the length of the first hinge axis 160 in the first portion of the first track groove 140 .

[0430] For example, the depth of the second portion of the first track groove 140 can be less than the depth of the first portion of the first track groove 140, so that the first hinge axis 160 can be closer to the bottom surface of the second portion of the first track groove 140, so that the movement process of the first hinge axis 160 in the second portion of the first track groove 140 is more stable.

[0431] For example, the second track groove 150 may include a first part and a second part that are connected. When the abutting portion 410 abuts against the first contact portion 310 and the inclined portion 320, the second hinge axis 170 is located in the first part of the second track groove 150. When the abutting portion 410 abuts against the second contact portion 330, the second hinge axis 170 is located in the second part of the second track groove 150, and the length of the second hinge axis 170 located in the second part of the second track groove 150 is less than the length of the second hinge axis 170 located in the first part of the second track groove 150.

[0432] For example, the depth of the second portion of the second track groove 150 can be less than the depth of the first portion of the second track groove 150, so that the second hinge axis 170 can be closer to the bottom surface of the second portion of the second track groove 150, so that the movement process of the second hinge axis 170 in the second portion of the second track groove 150 is more stable.

[0433] For example, the first track groove 140 may include a first portion, a second portion, and a third portion connected to each other. When the abutting portion 410 abuts against the first contact portion 310, the first hinge shaft 160 is located in the first portion of the first track groove 140; when the abutting portion 410 abuts against the inclined portion 320, the first hinge shaft 160 is located in the second portion of the first track groove 140;

[0434] When the abutment portion 410 abuts against the second contact portion 330, the first hinge axis 160 is located in the third portion of the first track groove 140, and during the process of the door body 30 rotating and closing, the length of the first hinge axis 160 in the second portion of the first track groove 140 gradually decreases; the length of the first hinge axis 160 in the third portion of the first track groove 140 is less than the length of the first hinge axis 160 in the first portion of the first track groove 140.

[0435] For example, the depth of the third portion of the first trajectory groove 140 can be less than the depth of the first portion of the first trajectory groove 140, and the depth of the second portion of the first trajectory groove 140 gradually decreases from the first portion of the first trajectory groove 140 to the third portion of the first trajectory groove 140, so that the first hinge axis 160 can be closer to the bottom surface of the second portion of the first trajectory groove 140, so that the movement process of the first hinge axis 160 in the second portion of the first trajectory groove 140 is more stable.

[0436] For example, the second track groove 150 may include a first portion, a second portion, and a third portion connected to each other. When the abutting portion 410 abuts against the first contact portion 310, the second hinge shaft 170 is located in the first portion of the second track groove 150; when the abutting portion 410 abuts against the inclined portion 320, the second hinge shaft 170 is located in the second portion of the second track groove 150;

[0437] When the abutting portion 410 abuts against the second contact portion 330, the second hinge axis 170 is located in the third part of the second track groove 150, and in the process of the door body 30 rotating and closing, the length of the second hinge axis 170 in the second part of the second track groove 150 gradually decreases; the length of the second hinge axis 170 in the third part of the second track groove 150 is less than the length of the second hinge axis 170 in the first part of the second track groove 150.

[0438] For example, the depth of the third portion of the second track groove 150 can be less than the depth of the first portion of the second track groove 150, and the depth of the second portion of the second track groove 150 gradually decreases from the first portion of the second track groove 150 to the third portion of the second track groove 150, so that the second hinge axis 170 can be closer to the bottom surface of the second portion of the second track groove 150, so that the movement process of the second hinge axis 170 in the second portion of the second track groove 150 is more stable.

[0439] Reference Fig.35 and Fig.36 In some embodiments, the abutment portion 410 may be provided with a contact piece, which may be configured as a ball or a roller, etc., so as to reduce the friction between the abutment portion 410 and the first contact portion 310, the inclined portion 320 and the second contact portion 330 through the contact piece, so that the process of the door body 120 moving in the vertical direction is smoother.

[0440] For example, the number of the contact member can be set to one, and the contact member is set to a roller, which can be set on the abutting portion 410, and the rotation axis of the roller can be parallel to one of the first contact portion 310, the inclined portion 320, and the second contact portion 330. The abutting portion 410 can be provided with a receiving groove, and the receiving groove accommodates part of the roller, and at least part of the roller extends out of the receiving groove so that at least part of the circumference of the roller is exposed, and the part of the circumference located outside the receiving groove is used to abut the first contact portion 310, the inclined portion 320, and the second contact portion 330.

[0441] Alternatively, when the number of contact members is set to multiple, the first part of the contact members among the multiple contact members can be arranged in the horizontal direction, and the first part of the contact members can be used to form the first abutting surface 411 of the abutting portion 410, and the first part of the contact members is used to abut against the first contact portion 310 and the second contact portion 330 to reduce the friction between the first abutting surface 411 of the abutting portion 410 and the first contact portion 310 and the second contact portion 330 when moving in the horizontal direction.

[0442] A second portion of the contact pieces among the multiple contact pieces can be arranged in a direction parallel to the inclined portion 320, and the second portion of the contact pieces can be used to form a second abutment surface 412 of the abutment portion 410, and the second portion of the contact pieces are used to abut against the inclined portion 320 to reduce the friction between the second abutment surface 412 of the abutment portion 410 and the inclined portion 320 when the door body 120 moves downward.

[0443] It is easy to understand that during the process of rotating and closing the door body 120, the abutment portion 410 rolls in contact with the first contact portion 310 and the second contact portion 330 through the first part of the contact piece, and rolls in contact with the inclined portion 320 through the second part of the contact piece, so that the abutment portion 410 can roll in contact with the first contact portion 310, the inclined portion 320 and the second contact portion 330.

[0444] By way of example, the number of contact members is set to be multiple, and the contact members can be set to be ball bearings. Multiple ball bearings are installed on the abutment portion 410, and at least part of each ball bearing extends out of the abutment portion 410. The part of the ball bearing extending out of the abutment portion 410 is used to form at least one of the first abutment surface 411 and the second abutment surface 412. For example, a first part of the ball bearings is used to form the first abutment surface 411, and a second part of the ball bearings is used to form the second abutment surface 412.

[0445] The abutment portion 410 may be provided with a first mounting groove, which may extend in a direction parallel to the first abutment surface 411, wherein a first portion of balls are accommodated in the first mounting groove, and the balls in the first mounting groove at least partially extend out of the first mounting groove, and the portion of the balls extending out of the first mounting groove is used to form the first abutment surface 411.

[0446] The abutment portion 410 may be provided with a second mounting groove, which may extend in a direction parallel to the second abutment surface 412, wherein a second portion of balls may be accommodated in the second mounting groove, and the balls in the second mounting groove at least partially extend out of the second mounting groove, and the portion of the balls extending out of the second mounting groove is used to form the second abutment surface 412.

[0447] By way of example, the number of contact members is set to be multiple, and the contact members can be set to be rollers, the rotation axis of the first part roller is perpendicular to the extension direction of the inclined surface of the first inclined portion 320, and the peripheral surface of the first part roller is used to form the first abutment surface 411; the rotation axis of the second part roller is perpendicular to the extension direction of the inclined surface of the second inclined portion 320, and the rotation axis of the second part roller can be set parallel to the rotation axis of the first part roller, and the peripheral surface of the second part roller is used to form the second abutment surface 412.

[0448] Reference Fig.34 In some embodiments, the abutment portion 410 can be set as a columnar abutment portion 410, the first end of the columnar abutment portion 410 is connected to the surface of the movable part 400 facing the fixed part 300, the columnar abutment portion 410 extends in the vertical direction, the second end of the columnar abutment portion 410 forms the bottom of the abutment portion 410, and the second end of the columnar abutment portion 410 is used to abut the first contact portion 310, the inclined portion 320 and the second contact portion 330, so that the movable part 400 drives the door body 120 to move in the vertical direction through the columnar abutment portion 410.

[0449] For example, the door body 120 can be reused to form the movable part 400, that is, the columnar abutment portion 410 can be arranged at the lower end of the door body 120, and the first track groove 140 and the second track groove 150 are both arranged at the lower end of the door body 120 to make the structure of the gravity self-closing structure simpler.

[0450] The columnar abutment 410 may be integrally provided on the door body 120, or the columnar abutment 410 may be detachably provided on the lower end of the door body 120. For example, the first end of the columnar abutment 410 may be provided with a thread so that the columnar abutment 410 can be threadedly connected to the lower end of the door body 120, and the second end of the columnar abutment 410 extends downward to facilitate the assembly and disassembly process of the columnar abutment 410.

[0451] The columnar abutment 410 can also be relatively fixed to the lower end of the door body 120 by means of snap-fitting or the like. When the columnar abutment 410 is assembled to form a gravity self-closing structure, the first end of the columnar abutment 410 can be inserted into the lower end of the door body 120, so that the columnar abutment 410 is connected to the door body 120, thereby making the assembly process of the gravity self-closing structure more convenient.

[0452] During the process of rotating and closing the door body 120, the second end of the columnar abutting portion 410 abuts against the first contact portion 310, and the second end of the columnar abutting portion 410 can move horizontally from the first contact portion 310 to the first end of the inclined portion 320, and then the second end of the columnar abutting portion 410 abuts against the inclined portion 320, and the second end of the columnar abutting portion 410 moves obliquely downward from the first end of the inclined portion 320 to the second end of the inclined portion 320, and then moves to the second contact portion 330 through the second end of the inclined portion 320, so that the second end of the columnar abutting portion 410 abuts against the second contact portion 330, and the second end of the columnar abutting portion 410 can move in the horizontal direction relative to the second contact surface, thereby realizing the closing process of the door body 120.

[0453] For example, the box body 110 can be reused to form the fixing part 300. For example, the hinge assembly 130 located at the lower end of the door body 120 can be reused to form the fixing part 300. The hinge assembly 130 can be provided with a hinge plate 131. The surface of the hinge plate 131 facing the movable part 400 is provided with a first hinge axis 160, a second hinge axis 170, a first contact portion 310, an inclined portion 320 and a second contact portion 330, so as to realize the formation process of the fixing part 300 through the hinge plate 131, thereby making the structure of the gravity self-closing structure simpler.

[0454] Among them, the first hinge shaft 160 and the second hinge shaft 170 can be relatively fixed to the hinge plate 131 by means of threads or the like. The first hinge shaft 160 is provided with a first thread segment, and the first hinge shaft 160 is threadedly connected to the hinge plate 131 through the first thread segment. The second hinge shaft 170 is provided with a second thread segment, and the second hinge shaft 170 is threadedly connected to the hinge plate 131 through the second thread segment, so that the process of connecting the first hinge shaft 160 and the second hinge shaft 170 to the hinge plate 131 is more convenient.

[0455] It is easy to understand that the lower end of the door body 120 is reused to form the movable member 400, and the hinge assembly 130 of the box body 110 is reused to form the fixed member 300, so as to make the assembly process of the gravity self-closing structure more convenient.

[0456] In some embodiments, the second end of the cylindrical abutment portion 410 can be set to a circular arc abutment end, and the circular arc abutment end can be provided with a cylindrical circumferential surface or a hemispherical surface. When the circular arc abutment end is provided with a cylindrical circumferential surface, the extension direction of the cylindrical circumferential surface can be perpendicular to the extension direction of the inclined surface of the first inclined portion 320110, so that the circular abutment end is always abutted against the first contact portion 310, the inclined portion 320 and the second contact portion 330 through the arc surface.

[0457] Alternatively, when the circular abutting end is provided with a hemispherical surface, the hemispherical surface is protruded toward the movable part 400, and the center of the hemispherical surface is located in the extension direction of the cylindrical abutting portion 410, so that the circular abutting end is always abutted against the first contact portion 310, the inclined portion 320 and the second contact portion 330 through the arc surface.

[0458] The columnar abutment portion 410 can abut against the first contact portion 310, the inclined portion 320 and the second contact portion 330 through the cylindrical circumferential surface to increase the contact area between the columnar abutment portion 410 and the first contact portion 310, the inclined portion 320 and the second contact portion 330, so that the process in which the columnar abutment portion 410 drives the door body 120 to move in the vertical direction is more stable.

[0459] In some embodiments, a rolling element may be provided at the second end of the columnar abutment portion 410, and the rolling element may be provided as a ball or a roller, etc., so as to reduce the friction between the columnar abutment portion 410 and the first contact portion 310, the inclined portion 320 and the second contact portion 330 through the rolling element, so that the process of the door body 120 moving in the vertical direction is smoother.

[0460] By way of example, the rolling member can be configured as a ball; the columnar abutment portion 410 is provided with a third mounting groove, the third mounting groove is located on the end face of the second end of the columnar abutment portion 410, part of the ball extends out of the third mounting groove, the part of the ball extending out of the third mounting groove forms the bottom of the columnar abutment portion 410, and the part of the ball extending out of the third mounting groove is used to abut the first contact portion 310, the inclined portion 320 and the second contact portion 330 to reduce the friction between the columnar abutment portion 410 and the fixing member 300.

[0461] Alternatively, the rolling member can be set as a roller, the rotation axis of the roller can be parallel to the inclined portion 320, and the bottom end of the circumferential surface of the roller forms the bottom end of the columnar abutment portion 410, and the circumferential surface of the roller is used to abut against the first contact portion 310, the inclined portion 320 and the second contact portion 330 to reduce the friction between the columnar abutment portion 410 and the fixing member 300.

[0462] It is easy to understand that in the process of the columnar abutment portion 410 moving from the inclined portion 320 to the second contact portion 330 through the rolling element, the columnar abutment portion 410 can move quickly on the inclined portion 320 under the action of the rolling element, thereby reducing the possibility of the columnar abutment portion 410 staying on the surface of the inclined portion 320.

[0463] In some embodiments, the abutment portion 410 can be set as a roller-type abutment portion 410, which can be rotatably set on the surface of the movable part 400 facing the fixed part 300, and the peripheral surface of the roller-type abutment portion 410 is used to abut against the first contact portion 310, the inclined portion 320 and the second contact portion 330, and the bottom end of the peripheral surface of the roller-type abutment portion 410 forms the bottom of the abutment portion 410, and the rotation axis of the roller-type abutment portion 410 can be parallel to one of the first contact portion 310, the inclined portion 320 and the second contact portion 330.

[0464] For example, a mounting frame may be provided on the surface of the movable part 400 facing the fixed part 300, and a mounting hole is provided on the mounting frame. The mounting hole is used to pass the rotating shaft of the roller abutment part 410 so that the roller abutment part 410 can rotate relative to the movable part 400 through the rotating shaft and the mounting frame.

[0465] During the process of rotating and closing the door body 120, the bottom end of the roller abutting portion 410 can abut against the first contact portion 310, and the bottom end of the roller abutting portion 410 can move horizontally from the first contact portion 310 to the first end of the inclined portion 320, and then the bottom end of the roller abutting portion 410 abuts against the inclined portion 320, and the bottom end of the roller abutting portion 410 moves obliquely downward from the first end of the inclined portion 320 to the second end of the inclined portion 320, and then moves to the second contact portion 330 through the second end of the inclined portion 320, so that the bottom end of the roller abutting portion 410 abuts against the second contact portion 330, and the bottom end of the roller abutting portion 410 can move in the horizontal direction relative to the second contact surface, thereby realizing the closing process of the door body 120.

[0466] Furthermore, in the process of the roller abutment portion 410 moving from the inclined portion 320 to the second contact portion 330 via the rolling element, the roller abutment portion 410 can move quickly on the inclined portion 320 under the action of the rolling element, thereby reducing the possibility of the roller abutment portion 410 staying on the surface of the inclined portion 320.

[0467] A first arc portion may be provided between the first contact portion 310 and the first end of the inclined portion 320 to facilitate the process of the roller-type abutment portion 410 moving from the first contact portion 310 to the first end of the inclined portion 320, and the curvature of the first arc portion may be less than or equal to the curvature of the roller-type abutment portion 410, so that the roller-type abutment portion 410 can move from the first contact portion 310 to the first end of the inclined portion 320 through the first arc portion, thereby making the process of the door body 120 moving downward in the vertical direction smoother.

[0468] An angle portion may be provided between the second end of the inclined portion 320 and the second contact portion 330, or a second arc portion may be provided between the second end of the inclined portion 320 and the second contact portion 330, and the curvature of the second arc portion may be greater than the curvature of the roller-type abutment portion 410. When the roller-type abutment portion 410 can move from the second contact portion 330 to the second end of the inclined portion 320, it is more difficult for the roller-type abutment portion 410 to move to the inclined portion 320 through the angle portion or the second arc portion, thereby increasing the difficulty of the roller-type abutment portion 410 moving to the inclined portion 320, and further reducing the possibility of a gap between the door body 120 and the box body 110.

[0469] In some embodiments, at least one of the first contact portion 310, the inclined portion 320 and the second contact portion 330 may be provided with a moving part, and the moving part may be set to a ball or a roller, etc., so as to reduce the friction between the abutment portion 410 and the first contact portion 310, the abutment portion 410 and the second contact portion 330 through the moving part, so that the process of the door body 120 moving in the horizontal direction is smoother, and the friction between the abutment portion 410 and the inclined portion 320 can be reduced, so that the process of the door body 120 moving in the vertical direction is smoother.

[0470] For example, the number of moving parts can be set to one or more. When the number of moving parts is set to one, the contact part can be set at the first contact part 310, the inclined part 320 and the second contact part 330; or, the number of moving parts can also be set to multiple, and multiple moving parts can be used to form at least one of the first contact part 310, the inclined part 320 and the second contact part 330.

[0471] When the number of movable parts on the first contact portion 310 and / or the second contact portion 330 is set to be multiple, the multiple movable parts can be arranged in parallel to the horizontal direction, and the multiple movable parts can be reused to form the surface of the first contact portion 310 and / or the second contact portion 330 facing the movable part 400, so as to reduce the friction between the abutment portion 410 and the first contact portion 310, the abutment portion 410 and the second contact portion 330, so that the process of the door body 120 moving in the horizontal direction is smoother.

[0472] On the inclined portion 320, when the number of movable parts is set to be multiple, the multiple movable parts can be arranged in a direction parallel to the inclined portion 320, and the multiple movable parts can be reused to form the inclined surface of the inclined portion 320 to reduce the friction between the abutment portion 410 and the inclined portion 320 when the door body 120 moves upward or downward, so that the process of the door body 120 moving in the vertical direction is smoother.

[0473] When the number of moving elements is set to be plural, the plurality of moving elements may form at least one moving element row, each moving element row includes a plurality of moving elements, and the number of moving element rows may be set to be plural.

[0474] In some embodiments, the first contact portion 310, the inclined portion 320 and the second contact portion 330 can be integrally arranged. For example, the first contact portion 310, the inclined portion 320 and the second contact portion 330 can jointly form a pushing structure, and the pushing structure is used in conjunction with the abutment portion 410. The number of the pushing structures can be set to one or more. When the number of the pushing structures is set to multiple, the number of the abutment portions 410 is correspondingly set to multiple, and each pushing structure can be used in conjunction with one abutment portion 410.

[0475] Reference Fig.38 and Fig.39 For example, the box body 110 can be reused to form the fixing part 300. For example, the hinge assembly 130 located at the lower end of the door body 30 can be reused to form the fixing part 300. The hinge assembly 130 can be provided with a hinge plate 131. The surface of the hinge plate 131 facing the movable part 400 is provided with a first hinge axis 160, a second hinge axis 170, a first contact portion 310, an inclined portion 320 and a second contact portion 330, so as to realize the formation process of the fixing part 300 through the hinge plate 131, thereby making the structure of the gravity self-closing structure simpler.

[0476] Among them, the first hinge shaft 160 and the second hinge shaft 170 can be relatively fixed to the hinge plate 131 by means of threads or the like. The first hinge shaft 160 is provided with a first thread segment, and the first hinge shaft 160 is threadedly connected to the hinge plate 131 through the first thread segment. The second hinge shaft 170 is provided with a second thread segment, and the second hinge shaft 170 is threadedly connected to the hinge plate 131 through the second thread segment, so that the process of connecting the first hinge shaft 160 and the second hinge shaft 170 to the hinge plate 131 is more convenient.

[0477] It is easy to understand that the lower end of the door body 30 is reused to form the movable member 400, and the hinge assembly 130 of the box body 110 is reused to form the fixed member 300, so as to make the assembly process of the gravity self-closing structure more convenient.

[0478] In some embodiments, along the extension direction of the first hinge axis 160 and the second hinge axis 170, the positive projection area of ​​the first inclined portion 320 and the second inclined portion 320 on the surface of the fixed part 300 toward the movable part 400 can be adjusted according to the second set angle, the third set angle and the size of the third set angle.

[0479] A foot 360 is provided on the surface of the hinge plate 131 away from the first hinge axis 160 and the second hinge axis 170, and the hinge plate 131 is supported by the foot 360 so that the weight of the door body 120 can be transferred to the ground through the foot 360, thereby reducing the force on the hinge plate 131 and reducing the possibility of bending and breaking of the hinge plate 131.

[0480] The hinge plate 131 is also provided with a rotatable roller having a rotating surface, the bottom surface of which is flush with the bottom end of the foot 360, so as to drive the box body 110 to move through the rotating surface, thereby making the movement process of the box body 110 more convenient.

[0481] In some embodiments, the fixing member 300 can be relatively fixedly arranged on the box body 110. For example, the fixing member 300 can be directly connected to the box body 110, or the fixing member 300 can also be connected to the box body 110 through a hinge assembly located at the lower end of the door body 30. The material of the fixing member 300 and the movable member 400 can be set to POM material.

[0482] For example, the fixing member 300 can be set as a plate-type fixing member 300 or a column-type fixing member 300, and the first surface of the fixing member 300 can face the box body 110, or the fixing member 300 can also face the hinge plate 131 of the hinge assembly 130, and the second surface of the fixing member 300 faces the lower end of the door body 30, and the second surface of the fixing member 300 is connected to the first hinge shaft 160 and the second hinge shaft 170.

[0483] The fixing member 300 may be provided with at least one connecting member 340 , so that the fixing member 300 is relatively fixed to the box body 110 through the connecting member 340 . For example, the fixing member 300 may be fixed to the hinge plate 131 of the hinge assembly 130 through the connecting member 340 .

[0484] The connecting member 340 can be configured as a connecting column, which can be relatively fixedly arranged on the hinge plate 131. The first end of the connecting column is connected to the hinge plate 131, and the second end of the connecting column extends toward the movable member 400. The fixing member 300 is provided with a movable opening, and the connecting column is passed through the movable opening so that the fixing member 300 can be relatively movably arranged on the hinge plate 131 along the extension direction of the connecting column, so that the fixing member 300 and the hinge plate 131 can be fixed by the connecting column.

[0485] The connecting member 340 can also be configured as a fixing bolt, a fixing pin or the like, or the connecting member 340 can also be configured as a card joint or the like, so that the fixing member 300 can be detachably connected to the hinge plate 131 by card connection or the like.

[0486] The number of connecting members 340 can be set to one or more. When the number of connecting members 340 is set to multiple, the multiple connecting members 340 can be evenly distributed on the fixing member 300, and the extension directions of the multiple connecting members 340 are set parallel to each other, so that the process of the fixing member 300 moving along the extension direction of the connecting member 340 is more stable.

[0487] For example, the first hinge axis 160 and the second hinge axis 170 can also be arranged on the hinge plate 131, and the extension direction of the first hinge axis 160 and the extension direction of the second hinge axis 170 are both arranged parallel to the extension direction of the connecting member 340, and the fixing member 300 can be provided with two through holes, and the two through holes are respectively used to penetrate the first hinge axis 160 and the second hinge axis 170, so that the ends of the first hinge axis 160 and the second hinge axis 170 facing away from the hinge plate 131 can pass through the fixing member 300 and extend toward the movable member 400, and the fixing member 300 can move along the extension direction of the first connecting member 340 through the two through holes.

[0488] When the fixing member 300 is relatively fixed to the box body 110, the fixing member 300 can be moved in a direction close to the hinge plate 131, so that the connecting column is passed through the movable opening, and the first hinge axis 160 and the second hinge axis 170 relatively fixed to the hinge plate 131 can be passed through the through hole, and the first surface of the fixing member 300 faces the hinge plate 131, thereby fixing the fixing member 300 relatively to the box body 110.

[0489] For example, the fixing member 300 may also be provided with an adjusting member 350, the first end of the adjusting member 350 may be connected to the fixing member 300, the second end of the adjusting member 350 is connected to the hinge plate 131, and the second end of the adjusting member 350 may be telescopically arranged along the extension direction of the connecting column so as to adjust the distance between the fixing member 300 and the hinge plate 131 through the adjusting member 350.

[0490] It is easy to understand that the movable part 400 is relatively fixed to the door body 30. When the distance between the fixed part 300 and the hinge plate 131 is adjusted by the adjusting part 350, since the distance between the movable part 400 and the fixed part 300 remains relatively fixed, the distance between the movable part 400 and the door body 30 and the hinge plate 131 can be changed. When the height of the door body 30 needs to be adjusted, the height of the door body 30 can be adjusted by adjusting the distance between the fixed part 300 and the hinge plate 131 through the adjusting part 350.

[0491] Reference Figure 35-Figure 37 The fixing member 300 may be provided with an adjustment plate 370, a first surface of the adjustment plate 370 is connected to the adjustment member 350, and a second surface of the adjustment plate 370 is connected to the fixing member 300, so that the fixing member 300 is connected to the adjustment member 350 through the connecting plate, and the material of the adjustment plate 370 may be set to a metal material.

[0492] When the height of the fixing member 300 needs to be adjusted, the height of the adjusting plate 370 can be changed by the adjusting member 350, so that the fixing member 300 can be driven to move up and down in the vertical direction by the adjusting plate 370, thereby reducing the possibility of the adjusting member 350 directly contacting the fixing member 300 through the adjusting plate 370, and reducing the possibility of collision damage to the fixing member 300.

[0493] Reference Fig.40 and Fig.41 The adjustment plate 370 may also be provided with at least one protrusion 371, the number of which may be one or more, the protrusion 371 being protruded toward the fixing member 300, and the protrusion 371 being concavely disposed away from the surface of the fixing member 300, so as to increase the supporting strength of the adjustment plate 370, increase the stability of the adjustment plate 370, and reduce the possibility of deformation of the adjustment plate 370.

[0494] The adjusting member 350 can be configured as an adjusting bolt, the first end of which can be rotatably connected to the fixing member 300, the adjusting bolt can be threadedly connected to the hinge plate 131, and the second end of the adjusting bolt can be protruded relative to the surface of the hinge plate 131 away from the fixing member 300; when it is necessary to adjust the distance between the fixing member 300 and the hinge plate 131, the adjusting bolt can be rotated so that the threaded section of the adjusting bolt can be screwed into or out of the hinge plate 131, thereby changing the length of the adjusting bolt located between the fixing member 300 and the hinge plate 131, so as to realize the adjustment process of the distance between the fixing member 300 and the hinge plate 131, and can adjust the height of the refrigerator door body 30, thereby reducing the possibility of the refrigerator door body 30 being unequal up and down.

[0495] In addition, the protrusion 371 can be reused to connect the adjusting bolt. The protrusion 371 can correspond to the center of gravity of the fixing plate 300. The surface of the protrusion 371 facing away from the fixing piece 300 is reused to connect the adjusting bolt, so that the protrusion 371 can play a certain positioning role on the adjusting bolt, so that the process of the adjusting bolt driving the fixing piece 300 to move up and down in the vertical direction through the adjusting plate 370 is more stable.

[0496] Alternatively, the adjusting member 350 can also be configured as an adjusting nut, which can be threadedly connected to the connecting column, and the surface of the adjusting nut facing away from the hinge plate 131 abuts against the fixing member 300. When it is necessary to adjust the distance between the fixing member 300 and the hinge plate 131, the adjusting nut can be rotated to move the adjusting nut along the extension direction of the connecting column, thereby changing the length of the connecting column between the fixing member 300 and the hinge plate 131 to realize the adjustment process of the distance between the fixing member 300 and the hinge plate 131.

[0497] For example, the connecting member 340 can also be reused to form an adjusting nut. For example, the connecting member 340 can be rotatably set on the hinge plate 131 around the extension direction of the connecting member 340, and the first end of the connecting member 340 is protruded relative to the surface of the hinge plate 131 away from the fixing member 300, and the connecting member 340 is threadedly connected to the fixing member 300; when it is necessary to adjust the distance between the fixing member 300 and the hinge plate 131, the connecting member 340 can be rotated so that the threaded section of the connecting member 340 is screwed into or out of the fixing member 300, thereby changing the length of the connecting member 340 located between the fixing member 300 and the hinge plate 131, so as to realize the adjustment process of the distance between the fixing member 300 and the hinge plate 131.

[0498] Alternatively, the connecting member 340 can be rotatably set on the fixing member 300 around the extension direction of the connecting member 340, and the first end of the connecting member 340 is protruded relative to the surface of the fixing member 300 away from the hinge plate 131, and the connecting member 340 is threadedly connected to the hinge plate 131; when it is necessary to adjust the distance between the fixing member 300 and the hinge plate 131, the connecting member 340 can be rotated so that the threaded section of the connecting member 340 is screwed into or out of the hinge plate 131, thereby changing the length of the connecting member 340 located between the fixing member 300 and the hinge plate 131, so as to realize the adjustment process of the distance between the fixing member 300 and the hinge plate 131.

[0499] The first hinge axis 160 and the second hinge axis 170 can be arranged on the hinge plate 131, and the first hinge axis 160 and the second hinge axis 170 pass through the adjustment plate 370 and the fixing member 300 so that at least part of the first hinge axis 160 and the second hinge axis 170 extend toward the movable member 400, and the length of the first hinge axis 160 and the second hinge axis 170 can be greater than or equal to 8 mm and less than or equal to 18 mm. For example, the length of the first hinge axis 160 and the second hinge axis 170 can be set to any length range of 8 mm-10 mm, 10 mm-12 mm, 12 mm-14 mm, 14 mm-16 mm, and 16 mm-18 mm.

[0500] The adjustment range of the height of the fixing member 300 by the adjusting member 350 can be set to be greater than or equal to 0.5 mm and less than or equal to 3.5 mm. For example, the adjustment range of the height of the fixing member 300 by the adjusting member 350 can be set to any one of 0.5 mm-1 mm, 1 mm-1.5 mm, 1.5 mm-2 mm, 2 mm-2.5 mm, 2.5 mm-3 mm, and 3 mm-3.5 mm.

[0501] It is easy to understand that the length of the first hinge axis 160 and the second hinge axis 170 will affect the adjustment range of the height of the fixing member 300 by the adjustment member 350. For example, when the length of the first hinge axis 160 and the second hinge axis 170 is larger and the length of the first hinge axis 160 and the second hinge axis 170 extending out of the fixing member 300 remains unchanged, the adjustment range of the height of the fixing member 300 by the adjustment member 350 is larger.

[0502] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0503] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: A box body, wherein the box body is formed with a receiving cavity; A door body, the door body can be rotatably arranged on the box body to close or open the accommodating cavity; A gravity self-closing structure is arranged at the lower end of the door body, and the gravity self-closing structure includes a matching fixed part and a movable part, the fixed part is arranged on the box body, and the movable part is arranged on the door body; The movable member is provided with a first track groove and a second track groove, both of which are oriented toward the fixed member, and the movable member is further provided with an abutment portion, which is oriented toward the fixed member; The fixing member is provided with a first hinge shaft and a second hinge shaft; the first hinge shaft is relatively movable and arranged in the first track groove, and the second hinge shaft is relatively movable and arranged in the second track groove; The fixing member further comprises a first contact portion and an inclined portion connected to each other, wherein a first end of the inclined portion is connected to the first contact portion, and a second end of the inclined portion is inclined downward; and the abutting portion faces the first contact portion and the inclined portion.

2. The refrigerator according to claim 1, characterized in that: The fixing member further includes a second contact portion, the second contact portion is connected to the second end of the inclined portion, and the height of the second contact portion is smaller than the height of the first contact portion; During the process of the door body rotating and closing, the abutting portion moves from the first contact portion to the second contact portion through the inclined portion; when the door body is in a closed state, the abutting portion faces the second contact portion.

3. The refrigerator according to claim 1, characterized in that: The abutting portion has a second abutting surface, the second abutting surface is arranged parallel to the inclined portion, and the abutting portion faces the inclined portion through the second abutting surface; And / or, when the door body is in a closed state, the abutting portion is in contact with the inclined portion.

4. The refrigerator according to claim 2, characterized in that: The abutting portion has a first abutting surface and a second abutting surface, the second abutting surface is arranged parallel to the inclined portion, and the first abutting surface is arranged parallel to at least one of the first contact portion and the second contact portion; The abutting portion faces the inclined portion through the second abutting surface, and the abutting portion faces the first contact portion and the second contact portion through the first abutting surface.

5. The refrigerator according to claim 4, characterized in that: When the door body is in a closed state, the first abutting surface faces the second contact portion, and the second abutting surface is in contact with the inclined portion; Alternatively, when the door body is in a closed state, the first abutting surface faces the second contact portion, and the second abutting surface is spaced apart from the inclined portion.

6. The refrigerator according to any one of claims 1 to 5, characterized in that: It is characterized in that The fixing member can be relatively movably arranged on the box body along the vertical direction.

7. The refrigerator according to any one of claims 1 to 5, characterized in that: The first hinge axis is located at the first contact portion, and the second hinge axis is located between the first contact portion and the inclined portion; And / or, in the vertical direction, the top end of the first hinge shaft is flush with the top end of the second hinge shaft.

8. The refrigerator according to any one of claims 1 to 5, characterized in that: The first hinge axis and the second hinge axis may be reused to form a hinge assembly of the refrigerator.

9. A refrigerator, characterized in that: It comprises a box body, a door body and a gravity self-closing structure, wherein the door body is used to close or open the accommodating cavity of the box body; the opening angle of the door body relative to the box body has a first setting angle, a second setting angle and a third setting angle which decrease in sequence; The gravity self-closing structure is arranged at the lower end of the door body, and the gravity self-closing structure comprises a fixed part and a movable part, the fixed part is arranged on the box body, and the movable part is arranged on the door body; the movable part is provided with a first track groove and a second track groove facing the fixed part; the fixed part is provided with a first hinge shaft and a second hinge shaft, the first hinge shaft can be relatively movably arranged in the first track groove, and the second hinge shaft can be relatively movably arranged in the second track groove; The fixing member further comprises a first contact portion and an inclined portion connected to each other, wherein a first end of the inclined portion is connected to the first contact portion, and a second end of the inclined portion is inclined downward; the movable member is provided with an abutting portion, and the abutting portion faces the fixing member; During the process of the door body rotating and closing from the first setting angle to the second setting angle, the abutting portion moves from an end of the first contact portion away from the inclined portion to a first end of the inclined portion; During the process of the door body rotating and closing from the second setting angle to the third setting angle, the abutting portion moves obliquely downward from the first end of the inclined portion to the second end of the inclined portion.

10. The refrigerator according to claim 9, characterized in that: The difference between the first setting angle and the second setting angle is greater than or equal to the difference between the second setting angle and the third setting angle; And / or, the difference between the first setting angle and the second setting angle is greater than or equal to the second setting angle.

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