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 fixed part is arranged on the box body and comprises a transition part and an inclined part, the first end of the inclined part is connected to the transition part, and the second end of the inclined part inclines downwards; the movable part is arranged on the door body and comprises an abutting part; in the rotating closing process of the door body, the abutting part moves to the inclined part from the transition part, when the abutting part moves on the inclined part, the door body moves downwards, and when the door body is in a closed state, the abutting part abuts against the inclined part. 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 forms a receiving cavity for accommodating food or other items. The door body is movably arranged on the box body to close or open the receiving cavity through the door body. However, when the door body is closed to seal 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 embodiments of the present application provide a refrigerator, which can solve the technical problems that a gap is likely to appear between the door body and the box body, and the sealing performance of the receiving cavity is poor.

[0004] In a first aspect, the embodiments of the present application provide a refrigerator, including:

[0005] A box body, the box body forms a receiving cavity;

[0006] A door body, the door body is rotatably arranged on the box body around a rotation axis to close or open the receiving cavity;

[0007] A gravity self-closing structure, arranged at the lower end of the door body, the gravity self-closing structure includes a cooperating fixed part and a movable part; the fixed part is arranged on the box body, the fixed part includes a transition part and an inclined part, a first end of the inclined part is connected to the transition part, and a second end of the inclined part inclines downward; the movable part is arranged on the door body, and the movable part includes an abutting part;

[0008] During the process of the door body rotating and closing, the abutting part moves from the transition part to the inclined part. When the abutting part moves on the inclined part, the door body moves downward. When the door body is in the closed state, the abutting part abuts against the inclined part.

[0009] For the refrigerator of the embodiments of the present application, since the door body has a certain gravity, during the process of the door body rotating and opening, 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 playing a certain limiting role on the abutting part through the inclined part and reducing the possibility of the abutting part moving; and, during the process of the door body rotating and closing, 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, so that the process of the door body moving from the inclined part to the second transition part is more convenient. And, when the door body is closed to seal the receiving cavity, the possibility of a gap appearing between the door body and the box body can be reduced, and the sealing performance of the receiving cavity can be improved.

[0010] Second aspect, an embodiment of the present application provides a refrigerator, including a box body, a door body, and a gravity self-closing structure. The door body is used to close or open the accommodation cavity of the box body; the opening angles of the door body relative to the box body have a first set angle, a second set angle, and a third set angle that decrease in sequence;

[0011] The fixing member is arranged on the box body. The fixing member includes a transition portion and an inclined portion. The first end of the inclined portion is connected to the transition portion, and the second end of the inclined portion inclines downward; the movable member is arranged on the door body, and the movable member includes an abutting portion;

[0012] During the process that the door body rotates from the first set angle to the second set angle to close, the abutting portion moves from the end of the transition portion away from the inclined portion to the first end of the inclined portion;

[0013] During the process that the door body rotates from the second set angle to the third set angle to close, the abutting portion inclines downward and moves from the first end of the inclined portion to the second end of the inclined portion. Description of the Drawings

[0014] In order to more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0015] Figure 1 It is a schematic structural diagram of the gravity self-closing structure of the refrigerator according to the embodiment of the present application;

[0016] Figure 2 It is a schematic structural diagram of the gravity self-closing structure according to the embodiment of the present application;

[0017] Figure 3 It is a schematic diagram of the relative positions of the movable member and the fixing member when the abutting portion is suspended in the gravity self-closing structure according to the embodiment of the present application;

[0018] Figure 4 For the Figure 3 schematic diagram of the relative positions of the movable member and the fixing member from another perspective in the gravity self-closing structure according to the embodiment of the present application;

[0019] Figure 5 It is a schematic diagram of the relative positions of the movable member and the fixing member when the first abutting surface abuts against the end of the transition portion away from the inclined portion in the gravity self-closing structure according to the embodiment of the present application;

[0020] Figure 6 For the Figure 5Schematic diagram of the relative positions of the movable part and the fixed part in the gravity self-closing structure from another perspective;

[0021] Figure 7 Schematic diagram of the relative positions of the movable part and the fixed part when the bottom of the abutting part abuts against the transition part in the gravity self-closing structure of the embodiment of the present application;

[0022] Figure 8 For the embodiment of the present application Figure 7 Schematic diagram of the relative positions of the movable part and the fixed part in the gravity self-closing structure from another perspective;

[0023] Figure 9 Schematic diagram of the relative positions of the movable part and the fixed part when the bottom of the abutting part abuts against the first end of the inclined part in the gravity self-closing structure of the embodiment of the present application;

[0024] Figure 10 For the embodiment of the present application Figure 9 Schematic diagram of the relative positions of the movable part and the fixed part in the gravity self-closing structure from another perspective;

[0025] Figure 11 Schematic diagram of the relative positions of the movable part and the fixed part when the bottom of the abutting part abuts against the inclined part in the gravity self-closing structure of the embodiment of the present application;

[0026] Figure 12 For the embodiment of the present application Figure 11 Schematic diagram of the relative positions of the movable part and the fixed part in the gravity self-closing structure from another perspective;

[0027] Figure 13 Schematic diagram of the relative positions of the movable part and the fixed part when the abutting part abuts against the fixed part when the abutting part is located at the end of the transition part far from the inclined part in the gravity self-closing structure of the embodiment of the present application;

[0028] Figure 14 Schematic diagram of the relative positions of the movable part and the fixed part when the abutting part is suspended when the abutting part is located at the end of the transition part far from the inclined part in the gravity self-closing structure of the embodiment of the present application;

[0029] Figure 15 Schematic diagram of the relative positions of the upper hinge plate and the rotating shaft of the refrigerator in the embodiment of the present application;

[0030] Figure 16 Schematic diagram of the structure of the fixed part in the gravity self-closing structure of the embodiment of the present application;

[0031] Figure 17 Schematic diagram of the structure of the movable part in the gravity self-closing structure of the embodiment of the present application;

[0032] Figure 18Schematic diagram of the structure where the movable part in the gravity self-closing structure of the embodiment of the present application is installed on the end cover at the lower end of the door body;

[0033] Figure 19 Schematic diagram of the structure of the fixing part in the gravity self-closing structure of another embodiment of the embodiment of the present application;

[0034] Figure 20 Schematic diagram of the connection between the fixing part and the hinge plate in the embodiment of the present application;

[0035] Figure 21 Schematic diagram of the structure of the connecting plate in the embodiment of the present application;

[0036] Figure 22 Schematic diagram of the structure of the connecting plate and the adjusting part in the embodiment of the present application;

[0037] Figure 23 Exploded view of the fixing part and the hinge plate in the embodiment of the present application.

[0038] Explanation of reference numerals:

[0039] 100, box body;

[0040] 110, hinge plate; 111, guide post; 112, adjusting part; 113, connecting part; 114, connecting plate; 115, convex part;

[0041] 200, door body;

[0042] 210, end cover; 211, installation groove; 212, abutting part; 220, blocking part; 230, connecting block;

[0043] 300, fixing part;

[0044] 310, rotating shaft; 311, extending part; 312, supporting part; 320, transition part; 330, inclined part; 340, guide hole;

[0045] 400, movable part;

[0046] 410, abutting part; 411, first abutting surface; 412, second abutting surface; 420, rotating groove; 430, connecting port. Detailed implementation manners

[0047] In the related art, a refrigerator includes a box body and a door body. The box body forms a receiving cavity for accommodating food or other items. The door body is movably arranged on the box body to close or open the receiving cavity through the door body. Exemplarily, the door body can be rotatably arranged on the box body through a rotating structure. When the door body fits against the box body, the door body closes the receiving cavity. When an included angle is formed between the door body and the box body, the door body opens the receiving cavity to take or put food or other items through the receiving cavity.

[0048] When the door body is rotated to close the accommodation cavity through the door body, the door body moves towards the accommodation cavity. When the door body is attached to the surface of the box body, due to the influence of the air pressure change in the accommodation cavity, the door body is likely to bounce off the surface of the box body, resulting in a gap being formed between the door body and the surface of the box body, thereby affecting the sealing performance of the accommodation cavity.

[0049] To solve the above technical problems, an embodiment of the present application provides a refrigerator. 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 portion to move from the second end of the inclined portion to the first end of the inclined portion, thereby playing a certain limiting role on the abutting portion through the inclined portion and reducing the possibility of the abutting portion moving; and, during the process of rotating and closing the door body, when the abutting portion abuts against the inclined portion, the abutting portion can move towards the second end of the inclined portion under the action of the gravity of the door body, thereby making the process of the door body moving from the inclined portion to the second transition portion more convenient. And, when closing the door body to seal the accommodation cavity, the possibility of a gap appearing between the door body and the box body can be reduced, and the sealing performance of the accommodation cavity can be improved.

[0050] To make the purpose, implementation manner and advantages of the present application clearer, the following will clearly and completely describe the exemplary implementation manner of the present application in combination with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0051] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described implementation manner, rather than intending to limit the implementation manner of the present application. Unless otherwise specified, these terms should be understood in their ordinary and general meanings.

[0052] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover but not exclude inclusion. For example, a product or device including a series of components does not necessarily have to be limited to those components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0053] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.

[0054] The terms "first", "second", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the protection scope of this application.

[0057] Referring to Figure 1 and Figure 2 , in a first aspect, an embodiment of this application provides a refrigerator, which includes a box body 100 having a receiving cavity, a door body 200 connected to the box body 100 to open and close the receiving cavity, and a refrigeration device for supplying cold air to the receiving cavity. The box body 100 includes an inner liner defining the receiving cavity, an outer shell connected to the outside of the inner liner to form the appearance of the refrigerator, and a heat insulation layer disposed between the inner liner and the outer shell to insulate the receiving cavity.

[0058] The box body 100 defines a plurality of receiving cavities. In this embodiment, the plurality of receiving cavities may include a refrigerating chamber and a freezing chamber located below the refrigerating chamber. It should be noted that the types and settings of the plurality of receiving cavities of the refrigerator are not limited thereto.

[0059] A placing and taking opening is formed at the front end of the receiving cavity, through which a user can place food into the receiving cavity or take food out of the receiving cavity. A rotatable door body 200 is provided on the box body 100 to open or close the placing and taking opening of the receiving cavity. For example, the door body 200 is rotatably connected to the box body 100 by a hinge assembly located at the upper part of the refrigerator and a hinge assembly located at the lower part of the refrigerator.

[0060] The door body 200 can be rotatably arranged relative to the box body 100 through a rotating shaft 310. A door seal is provided on the rear wall of the door body 200. When the door body 200 is closed, the door seal surrounds the access opening and fits against the front end face of the box body 100 to effectively seal the connection between the door body 200 and the box body 100, thereby ensuring that the door body 200 seals the access opening and preventing cold air from leaking out. For example, the door seal can be in a ring shape.

[0061] In some embodiments, the refrigerator further includes a gravity self-closing structure. The gravity self-closing structure can be arranged at the lower end of the door body 200, and the gravity self-closing structure can include a cooperating fixed member 300 and a movable member 400. Among them, the fixed member 300 can be fixedly arranged on the box body 100, the movable member 400 can be fixedly arranged on the door body 200. The movable member 400 and the fixed member 300 can be arranged in the vertical direction, and the hinge assembly at the lower end of the door body 200 can be reused to form at least one of the fixed member 300 and the movable member 400, so that the formation process of the gravity self-closing structure is more convenient. Alternatively, the fixed member 300 can also be fixedly arranged on the door body 200, and the movable member 400 can be fixed to the box body 100.

[0062] When the door body 200 rotates and closes to the closed state, the door body 200 can move towards the box body 100 through the gravity self-closing structure. The door body 200 can move relative to the fixed member 300 in the vertical direction under the drive of the movable member 400, so that the door body 200 can abut against the box body 100. And when the door body 200 needs to be rotated and opened, it is necessary to overcome the gravity of the door body 200 to separate the door body 200 from the box body 100, so as to reduce the gap between the door body 200 and the box body 100 when the door body 200 is in the closed state and improve the sealing performance of the accommodation cavity.

[0063] In some embodiments, the height of the door body 200 can be set to be greater than or equal to 1700 millimeters and less than or equal to 2000 millimeters. For example, the height of the door body 200 can be set within any one of the height ranges of 1700 millimeters - 1750 millimeters, 1750 millimeters - 1800 millimeters, 1800 millimeters - 1850 millimeters, 1850 millimeters - 1900 millimeters, 1900 millimeters - 1950 millimeters, and 1950 millimeters - 2000 millimeters.

[0064] It is easy to understand that the height of the door body 200 will affect the gravity of the door body 200. For example, when parameters such as the material and thickness of the door body 200 remain the same, the higher the height of the door body 200, the greater the weight of the door body 200, and the better the gravity self-closing effect of the door body 200 through the gravity self-closing structure; moreover, when the distance that the door body 200 moves vertically during the process of rotating and closing or rotating and opening remains the same, the higher the height of the door body 200, the lower the ratio of the distance that the door body 200 moves vertically to the height of the door body 200, and the corresponding jerks when the user rotates and closes or rotates and opens the door body 200 are reduced.

[0065] Any of the above height ranges may include at least one of the two endpoint values. For example, when the height of the door body 200 is set within the height range of 1700 mm - 1750 mm, the height of the door body 200 may be greater than or equal to 1700 mm and less than or equal to 1750 mm; or, the height of the door body 200 may also be greater than 1700 mm and less than or equal to 1750 mm; or, the height of the door body 200 may be greater than or equal to 1700 mm and less than 1750 mm;

[0066] Or, any of the above height ranges may not include the two endpoint values. For example, when the height of the door body 200 is set within the height range of 1700 mm - 1750 mm, the height of the door body 200 may also be set to be greater than 1700 mm and less than 1750 mm.

[0067] It should be noted that for each of the numerical ranges that appear in the embodiments of the present application, such as the subsequent thickness range or weight range and other numerical ranges, they may refer to the height range, that is, the numerical ranges may include at least one of the two endpoint values, or the numerical ranges may not include the two endpoint values, which will not be elaborated in the subsequent embodiments of the present application.

[0068] In some embodiments, the thickness of the door body 200 may be set to be greater than or equal to 55 mm and less than or equal to 76 mm. For example, the thickness of the door body 200 may be set within any of the height ranges of 55 mm - 58 mm, 58 mm - 60 mm, 60 mm - 62 mm, 62 mm - 65 mm, 65 mm - 68 mm, 68 mm - 70 mm, 70 mm - 72 mm, and 72 mm - 76 mm.

[0069] It is easy to understand that the thickness of the door body 200 will affect the gravity of the door body 200. For example, when parameters such as the material and height of the door body 200 remain the same, the greater the thickness of the door body 200, the greater the weight of the door body 200, and the better the gravity self-closing effect of the door body 200 through the gravity self-closing structure.

[0070] The weight of the door body 200 can be set to be less than or equal to 10 kg. For example, the weight of the door body 200 can be set within any one of the weight ranges 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 200 can be used to carry items of a certain weight, thereby increasing the total weight of the door body 200 and improving the gravity self-closing effect of the door body 200.

[0071] Alternatively, the weight of the door body 200 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 200 can be set within any one of the weight ranges of 10 kg - 15 kg, 15 kg - 20 kg, 20 kg - 25 kg, and 25 kg - 30 kg, so as to make the connection between the door body 200 and the cabinet 100 tighter through the gravity of the door body 200.

[0072] Referring to Figure 2 , by way of example, the surface of the fixing member 300 facing the movable member 400 is provided with a transition portion 320 and an inclined portion 330. The first end of the inclined portion 330 is connected to the transition portion 320. The second end of the inclined portion 330 inclines downward, and the first end of the inclined portion 330 is higher than the second end of the inclined portion 330. The surface of the movable member 400 facing the fixing member 300 is provided with an abutting portion 410, and the abutting portion 410 is used to abut against the transition portion 320 and the inclined portion 330. When the opening angle of the door body 200 is set to 0 degrees, that is, when the door body 200 is in the closed state, the bottom of the abutting portion 410 abuts against the inclined portion 330;

[0073] During the process of the door body 200 rotating and opening, the abutting portion 410 can move obliquely upward from the inclined portion 330 to the first end of the inclined portion 330, and then move to the transition portion 320 through the first end of the inclined portion 330, thereby realizing the opening process of the door body 200. During the process of the door body 200 rotating and closing, the abutting portion 410 can move from the transition portion 320 to the first end of the inclined portion 330, and then move obliquely downward from the first end of the inclined portion 330, thereby realizing the closing process of the door body 200.

[0074] It should be noted that the door body 200 has a certain gravity. During the process of the door body 200 rotating and opening, it is necessary to overcome the gravity of the door body 200 so that the door body 200 can drive the abutting portion 410 to move to the first end of the inclined portion 330, thereby playing a certain limiting role on the abutting portion 410 through the inclined portion 330 and reducing the possibility of the abutting portion 410 moving; and, during the process of the door body 200 rotating and closing, when the abutting portion 410 abuts against the inclined portion 330, the abutting portion 410 can move toward the second end of the inclined portion 330 under the action of the gravity of the door body 200, thereby improving the gravity self-closing effect of the refrigerator.

[0075] Exemplarily, when the abutting portion 410 moves to the inclined portion 330, the door seal located on the rear wall of the door body 200 can surround the access opening, so that the door seal fits against the front end surface of the cabinet body 100, effectively sealing the connection between the door body 200 and the cabinet body 100, and thus the gravity self-closing structure and the door seal can cooperate with each other to ensure that the door body 200 seals the access opening and prevent cold air from leaking out.

[0076] It should be noted that when the refrigerator is set as a side-by-side refrigerator, during the process of the door body 200 rotating open or rotating closed, the door body 200 needs to move in the horizontal direction, and the door body 200 needs to move vertically relative to the fixed member 300 driven by the movable member 400; so that the rotation axis 310 of the door body 200 not only needs to drive the door body 200 to move in the horizontal direction, but also needs to bear the gravity from the door body 200. Due to the large weight of the door body 200, the rotation axis 310 is likely to be deformed or even broken under the large force.

[0077] Therefore, by providing the abutting portion 410 and cooperating the abutting portion 410 with the fixed member 300, a part of the gravity of the door body 200 can be shared by the abutting portion 410, so that a part of the gravity of the door body 200 can be transmitted to the fixed member 300 through the abutting portion 410, and a part of the gravity of the door body 200 is transmitted to the rotation axis 310, reducing the force on the rotation axis 310, and thus reducing the possibility of deformation and other conditions of the rotation axis 310.

[0078] It should be noted that the opening angle of the door body 200 can be determined according to the relative position between the door body 200 and the cabinet body 100. Taking the door body 200 on the left side of the cabinet body 100 as an example, the opening angle of the door body 200 can be equal to the angle between the horizontal line perpendicular to the left side surface of the cabinet body 100 and the surface of the door body 200 facing the cabinet body 100. For example, the opening angle of the door body 200 can be set as: the difference between the angle formed by the horizontal line inside the left side surface of the cabinet body 100 and the horizontal line inside the surface of the door body 200 facing the cabinet body 100 minus 90 degrees; and when the door body 200 is in the closed state, when the angle formed by the horizontal line inside the left side surface of the cabinet body 100 and the horizontal line inside the surface of the door body 200 facing the cabinet body 100 is less than 90 degrees, the opening angle of the door body 200 can also be less than 0 degrees.

[0079] Exemplarily, during the process of the door body 200 rotating closed, when the abutting portion 410 moves to the inclined portion 330, for example, the opening angle of the door body 200 When it can be equal to 0 degrees, the door seal located on the rear wall of the door body 200 can surround the access opening, so that the door seal fits against the front end surface of the box body 100, effectively sealing the connection between the door body 200 and the box body 100. Thus, the gravity self-closing structure and the door seal can cooperate with each other to ensure that the door body 200 seals the access opening and prevent cold air from leaking out.

[0080] Compared with the embodiment where the transition part 320 and the inclined part 330 are located around the rotating shaft 310, by arranging the connected transition part 320 and inclined part 330 at intervals around the rotating shaft 310, the setting method of the transition part 320 and the inclined part 330 is more flexible. The bottom of the abutting part 410 can be closer to the surface of the fixing part 300 facing the moving part 400 relative to the bottom of the rotating groove 420, making the setting of the gravity self-closing structure more compact and reducing the distance between the lower end of the door body 200 and the hinge plate 110.

[0081] The positions of the inclined part 330 and the transition part 320 can be determined according to the opening angle of the door body 200 ; for example, the opening angle of the door body 200 can have a first set angle, a second set angle, and a third set angle that decrease in sequence. Among them, when the opening angle of the door body 200 is set to the first set angle, the abutting part 410 is located at one end of the transition part 320 away from the abutting part 410. When the opening angle of the door body 200 is set to the second set angle, the abutting part 410 abuts against the first end of the inclined part 330; when the opening angle of the door body 200 is set to the third set angle, the abutting part 410 abuts against the inclined part 330.

[0082] Referring to Figures 3 - 12 , by way of example, when the opening angle of the door body 200 is set to 20 degrees, the opening angle of the door body 200 is set to the first set angle, and the abutting part 410 is located at one end of the transition part 320 away from the inclined part 330. When the opening angle of the door body 200 is set to: the abutting part 410 abuts against the transition part 320. When the opening angle of the door body 200 is set to: the opening angle of the door body 200 is set to the second set angle, and the abutting part 410 abuts against the first end of the inclined part 330. When the opening angle of the door body 200 is set to: the abutting part 410 abuts against the inclined part 330. When the opening angle of the door body 200 is set to: Set to the third set angle, the abutting portion 410 abuts against the inclined portion 330.

[0083] The first stage

[0084] During the rotation and closing of the door body 200, when the opening angle of the door body 200 is greater than 20 degrees, the abutting portion 410 is located on the side of the transition portion 320 away from the inclined portion 330, and the abutting portion 410 can be suspended; when the opening angle of the door body 200 gradually decreases, the abutting portion 410 can move towards the abutting portion 410;

[0085] The second stage

[0086] During the rotation and closing of the door body 200, when the opening angle of the door body 200 is set to 20 degrees, the opening angle of the door body 200 is set to the first set angle, the abutting portion 410 is located at one end of the transition portion 320 away from the inclined portion 330. When the opening angle of the door body 200 is set to: At this time, the abutting portion 410 abuts against the transition portion 320, and the abutting portion 410 moves from one end of the transition portion 320 away from the inclined portion 330 towards the inclined portion 330. When the opening angle of the door body 200 At this time, the door body 200 is at the second set angle, and the abutting portion 410 can move to the first end of the inclined portion 330;

[0087] The third stage

[0088] When the opening angle of the door body 200 is set to: At this time, the abutting portion 410 abuts against the inclined portion 330, and the door body 200 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 330 towards the second end of the inclined portion 330. The movable member 400 drives the door body 200 to move downward through the abutting portion 410; when the opening angle of the door body 200 At this time, the door body 200 is at the third set angle, the abutting portion 410 can move to the second end of the inclined portion 330, or the abutting portion 410 can also move to the middle of the inclined portion 330; the door seal located on the rear wall of the door body 200 can surround the access opening, so that the door seal fits against the front end face of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0089] It should be noted that when the user pushes the door body 200 to rotate and close the door body 200, during the process that the abutting part 410 abuts against the transition part 320 and the inclined part 330 in sequence, the door body 200 will have a downward movement process, resulting in a certain sense of jerk for the user. The inclination angle of the inclined part 330 can be adjusted to change the moving distance of the door body 200 in the vertical direction, weaken the sense of jerk during the closing process of the door body, and improve the user experience.

[0090] Exemplarily, the position and length of the transition part 320 and the inclined part 330 in the horizontal direction can be adjusted to change the door body 200

[0091] The first set angle, the second set angle, and the third set angle to change the time of the first stage, the second stage, and the third stage during the process of the door body 200 rotating and closing.

[0092] Among them, the angle corresponding to the transition part 320 is equal to the difference between the first set angle and the second set angle, and the angle corresponding to the inclined part 330 is equal to the difference between the second set angle and the third set angle. Among them, the angle corresponding to the inclined part 330 is equal to the angle at which the abutting part 410 moves on the inclined part 330. The angle corresponding to the inclined part 330 can be less than the complete angle of the inclined part 330, or the angle corresponding to the inclined part 330 can also be equal to the complete angle of the inclined part 330.

[0093] For example, during the process of the door body 200 rotating and closing, when the length of the transition part 320 increases, the moving time of the abutting part 410 along the horizontal direction on the transition part 320 increases; when the length of the inclined part 330 in the horizontal direction increases, the moving time of the abutting part 410 along the horizontal direction and the vertical direction on the inclined part 330 increases, and the difference between the second set angle and the third set angle increases.

[0094] Moreover, the position of the second set angle of the door body 200 can be changed by adjusting the position of the first end of the inclined part 330 in the horizontal direction, and the position of the third set angle of the door body 200 can be adjusted by adjusting the relative position of the inclined part 330 and the abutting part 410 in the horizontal direction to determine the moving time of the door body 200 in the vertical direction.

[0095] In some embodiments, the first set angle can be greater than or equal to 10 degrees and less than or equal to 40 degrees. For example, the first set angle can be set within any one of the 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;

[0096] The second set angle can be greater than or equal to 5 degrees and less than or equal to 20 degrees. For example, the second set angle can be set within any one of the angular ranges of 5 degrees - 10 degrees, 10 degrees - 15 degrees, and 15 degrees - 20 degrees; the third set angle can be greater than or equal to -5 degrees and less than or equal to 5 degrees. For example, the third set angle can be set within the angular range of -5 degrees - 0 degrees or 0 degrees - 5 degrees;

[0097] Alternatively, the second set angle can also be greater than or equal to 11 degrees and less than or equal to 16 degrees. For example, the second set angle can be set within any one of the angular ranges of 11 degrees - 13 degrees, 13 degrees - 15 degrees, and 15 degrees - 16 degrees; or, the second set angle can also be greater than or equal to 21 degrees and less than or equal to 26 degrees. For example, the second set angle can be set within any one of the angular ranges of 21 degrees - 23 degrees, 23 degrees - 25 degrees, and 25 degrees - 26 degrees;

[0098] The angle corresponding to the transition part 320 (i.e., the difference between the first set angle and the second 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 transition part 320 (i.e., the difference between the first set angle and the second set angle) can be set within any one of the angular ranges of 5 degrees - 10 degrees, 10 degrees - 15 degrees, and 15 degrees - 20 degrees, so as to weaken the sense of jerk when the user closes the door.

[0099] The angle corresponding to the inclined part 330 can be greater than or equal to the angle corresponding to the transition part 320. The angle corresponding to the inclined part 330 (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 part 330 (i.e., the difference between the second set angle and the third set angle) can be set within any one of the angular ranges of 5 degrees - 10 degrees, 10 degrees - 15 degrees, and 15 degrees - 20 degrees, so as to weaken the sense of jerk when the user closes the door.

[0100] It should be noted that when the first set angle is larger, during the process of the door body 200 rotating and closing, the time for the abutting part 410 to move to the end of the transition part 320 away from the inclined part 330 is earlier; when the difference between the first set angle and the second set angle is larger, the moving distance and moving time of the abutting part 410 on the transition part 320 are longer; when the second set angle is larger, the time for the abutting part 410 to move to the first end of the inclined part 330 is earlier. When the difference between the second set angle and the third set angle is larger, the moving distance and moving time of the abutting part 410 on the inclined part 330 are longer; the magnitude of the third set angle can be equal to the angle when the door body 200 is in the closed state, or alternatively, the third set angle can also be equal to the angle of the door body 200 when the surface of the door body 200 facing the cabinet 100 abuts against the door seal.

[0101] Exemplarily, when the door body 200 is at the third set angle, the abutting portion 410 can be located at the second end of the inclined portion 330, or the abutting portion 410 can also be located at the middle of the inclined portion 330. For the convenience of description, hereinafter, taking the case where the door body 200 is at the third set angle and the abutting portion 410 is located at the second end of the inclined portion 330 as an example, the structures of the fixing member 300 and the movable member 400 will be described.

[0102] In some embodiments, the diameter of the rotating shaft 310 can be set to be greater than or equal to 7 mm and less than or equal to 12.5 mm. For example, the diameter of the rotating shaft 310 can be set within the diameter ranges such as 7 mm - 8 mm, 8 mm - 9 mm, 9 mm - 10 mm, 10 mm - 11 mm, and 11 mm - 12.5 mm. Alternatively, the diameter of the rotating shaft 310 can also be set within the diameter ranges such as 6.6 mm - 6.9 mm, or 7.3 mm - 7.9 mm, 8.1 mm - 8.9 mm, 9.1 mm - 9.9 mm, and 10.1 mm - 10.9 mm.

[0103] The material of the rotating shaft 310 can be set to cold-forged steel, and the yield strength of the rotating shaft 310 is greater than or equal to 260 MPa and less than or equal to 400 MPa to ensure the strength of the rotating shaft 310 and reduce the possibility of the rotating shaft 310 breaking. It is easy to understand that the diameter of the rotating shaft 310 can be adjusted according to the thickness of the door body 200. When the thickness of the door body 200 is larger, the diameter of the rotating shaft 310 can be larger, and the assembly space of the rotating shaft 310 is larger.

[0104] Exemplarily, the ratio of the diameter of the rotating shaft 310 to the thickness of the door body 200 can be set to be greater than or equal to one-tenth and less than or equal to one-sixth to ensure the assembly space of the rotating shaft 310 and reduce the possibility of the rotating shaft 310 breaking. For example, the thickness of the door body 200 can be set to 60 mm, and the diameter of the rotating shaft 310 can be set to 8 mm.

[0105] It is easy to understand that when the ratio of the diameter of the rotating shaft 310 to the thickness of the door body 200 is larger, the possibility of the rotating shaft 310 breaking is smaller, and the rotation opening or rotation closing of the door body 200 is more stable; when the ratio of the diameter of the rotating shaft 310 to the thickness of the door body 200 is smaller, the assembly space of the rotating shaft 310 is larger.

[0106] The movable member 400 may be correspondingly provided with a rotating groove 420, and the rotating groove 420 is at least used to accommodate the rotating shaft 310. During the process of rotating to open or close the door body 200, in the horizontal direction, the rotating shaft 310 may be relatively rotatably arranged in the rotating groove 420 around the axis of the rotating shaft 310. In the vertical direction, the rotating shaft 310 may move up and down relative to the rotating groove 420, so that the rotating shaft 310 needs to bear forces from both the horizontal direction and the vertical direction. By setting the diameter of the rotating shaft 310 to be greater than or equal to 7 mm and the yield strength of the rotating shaft 310 to be greater than or equal to 260 Mpa, the possibility of deformation and other phenomena of the rotating shaft 310 due to force is reduced, and the stability of the rotating shaft 310 is improved.

[0107] In some embodiments, in the hinge assembly located at the upper end of the door body 200, the rotating shaft 310 may be arranged on the hinge plate 110 of the hinge assembly, and the rotating shaft 310 extends downward in the vertical direction. The door body 200 is correspondingly provided with a rotating groove 420. When the movable member 400 drives the door body 200 to move upward through the abutting portion 410, a part of the rotating shaft 310 extends into the rotating groove 420, and the distance between the rotating shaft 310 and the groove bottom surface of the rotating groove 420 decreases.

[0108] Exemplarily, when the abutting portion 410 abuts against the second end of the inclined portion 330, there is a gap between the rotating shaft 310 and the groove bottom surface of the rotating groove 420. The gap can be determined according to the height difference between the transition portion 320 and the second end of the inclined portion 330 in the vertical direction, and the gap is greater than or equal to the height difference between the transition portion 320 and the second end of the inclined portion 330 in the vertical direction.

[0109] For example, the size of the gap can be set to be greater than or equal to 3 mm and less than or equal to 5 mm. The size of the gap can be set within any one of the gap ranges 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 set a certain margin through the gap and reduce the possibility of mutual collision between the rotating shaft 310 and the groove bottom surface of the rotating groove 420.

[0110] Refer to Figure 13 , the upper end of the door body 200 may be provided with an end cap 210. The end cap 210 may be relatively fixedly arranged on the door body 200. In the thickness direction of the door body 200, the width of the end cap 210 is equal to the thickness of the door body 200; the end cap 210 may be provided with a bushing. The bushing may be embedded in the end cap 210. The top surface of the bushing is recessed relative to the top surface of the end cap 210. The bushing may be provided with a rotating groove 420, and the bushing is correspondingly arranged on the hinge plate 110 so that the rotating shaft 310 located on the hinge plate 110 moves relative to the rotating groove 420 of the bushing.

[0111] The height difference between the top surface of the end cap 210 and the top surface of the bushing can be set to 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 cap 210 and the top surface of the bushing can be set within any 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.

[0112] In the vertical direction, the height of the top surface of the bushing is lower than the height of the top surface of the box body 100, and the height difference between the top surface of the box body 100 and the top surface of the bushing 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 100 and the top surface of the bushing can be set within any of the height difference ranges of 4 mm - 5 mm, 5 mm - 6 mm, and 6 mm - 7 mm, so that the door body 200 drives the bushing to move up and down in the vertical direction.

[0113] It should be noted that the rotating shaft 310 located at the upper end of the door body 200 can be correspondingly set to the rotating shaft 310 in the gravity self-closing structure, so that the rotation process of the door body 200 is more stable.

[0114] Moreover, the diameter of the rotating shaft 310 located at the upper end of the door body 200 can be less than or equal to the diameter of the rotating shaft 310 in the gravity self-closing structure. For example, the thickness of the door body 200 can be set to 60 mm, the diameter of the rotating shaft 310 in the gravity self-closing structure can be set to 8 mm, and the diameter of the rotating shaft 310 located at the upper end of the door body 200 can be set to 6 mm or 7 mm.

[0115] Refer to Figure 14 , in some embodiments, the transition portion 320 can be arranged in parallel in the horizontal direction, or the transition portion 320 can also be arranged obliquely. The inclination direction of the transition portion 320 can be the same as or different from the inclination direction of the inclined portion 330, and the inclination angle of the transition portion 320 can be less than or equal to the inclination angle of the inclined portion 330 to further improve the door closing effect of the gravity self-closing structure.

[0116] The height difference between the first end of the inclined portion 330 and the second end of the inclined 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 end of the inclined portion 330 and the second end of the inclined portion 330 in the vertical direction can be set within any of the height difference ranges 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 weaken the sense of jerk of the user during the door closing process.

[0117] It is easy to understand that the height difference in the vertical direction between the first end and the second end of the inclined portion 330 can be used to constitute the moving distance of the door body 200 in the vertical direction during the process of rotating and opening or rotating and closing; the smaller the height difference in the vertical direction between the first end and the second end of the inclined portion 330, the smaller the moving distance of the door body 200 in the vertical direction during the process of rotating and opening or rotating and closing.

[0118] Moreover, the smaller the moving distance of the door body 200 in the vertical direction during the process of rotating and opening or rotating and closing, the smaller the sense of jerk of the user during the process of opening and closing the door; the larger the moving distance of the door body 200 in the vertical direction during the process of rotating and opening or rotating and closing, the better the gravity self-closing effect of the door body 200, and the greater the force required by the user during the process of opening the door.

[0119] When the inclination angle of the inclined portion 330 is smaller, the sense of jerk of the user during the process of closing the door is smaller. The inclination angle of the inclined portion 330 can be set to be less than or equal to 40 degrees. For example, the inclination angle of the inclined portion 330 can be set within 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 weaken the sense of jerk of the user during the process of closing the door.

[0120] The inclination angle of the inclined portion 330 can be determined according to the vertical height difference in the vertical direction between the first end and the second end of the inclined portion 330, and the horizontal distance in the horizontal direction between the first end and the second end of the inclined portion 330. That is, when the vertical height difference between the first end and the second end of the inclined portion 330 is constant, the larger the horizontal distance between the first end and the second end of the inclined portion 330, the smaller the inclination angle of the inclined portion 330; when the horizontal distance between the first end and the second end of the inclined portion 330 is constant, the larger the vertical height difference between the first end and the second end of the inclined portion 330, the larger the inclination angle of the inclined portion 330.

[0121] Exemplarily, the inclined portion 330 can be set as a planar inclined portion 330. The planar inclined portion 330 has a plane. The first end of the planar inclined portion 330 can be directly connected to the transition portion 320, or the first end of the planar inclined portion 330 can also be connected to the transition portion 320 by means of arc transition, etc. The planar inclined portion 330 can have the above-mentioned connected first part and second part. The first part of the planar inclined portion 330 can be used to contact the abutting portion 410, and the second part of the planar inclined portion 330 can be used to connect to the installation base structure such as the hinge plate 110.

[0122] Alternatively, the bottom end of the planar inclined portion 330 can be used to form the second end of the planar inclined portion 330, that is, the bottom end of the planar inclined portion 330 can be used to connect to the mounting base structure such as the hinge plate 110.

[0123] In some embodiments, the inclined portion 330 can also be set as an arc-shaped inclined portion 330. The arc-shaped inclined portion 330 has an arc surface. The arc-shaped inclined portion 330 can protrude away from the transition portion 320, that is, from the first end to the second end of the arc-shaped inclined portion 330, the inclination angle of the arc-shaped inclined portion 330 gradually increases; during the process of the door body 200 rotating and opening, the abutting portion 410 needs to move from the second end of the arc-shaped inclined portion 330 to the first end of the arc-shaped inclined portion 330. Since the inclination angle of the portion of the arc-shaped inclined portion 330 near the second end is larger, it makes the process of the abutting portion 410 moving to the arc-shaped inclined portion 330 more laborious, further improving the self-closing effect of the gravity self-closing structure.

[0124] Alternatively, the arc-shaped inclined portion 330 can also be concave away from the first transition portion 320, that is, from the first end to the second end of the arc-shaped inclined portion 330, the inclination angle of the arc-shaped inclined portion 330 gradually decreases. During the process of the door body 200 rotating and opening, the abutting portion 410 needs to move from the second end of the arc-shaped inclined portion 330 to the first end of the arc-shaped inclined portion 330. When the weight of the door body 200 is large or the inclination angle of the arc-shaped inclined portion 330 is large, the gravity self-closing effect of the gravity self-closing structure can be ensured. Then, since the inclination angle of the portion of the arc-shaped inclined portion 330 near the second end is smaller, it makes the process of the abutting portion 410 moving to the arc-shaped inclined portion 330 more labor-saving, making the process of the user rotating and opening the door body 200 more convenient.

[0125] In some embodiments, the inclined portion 330 can also have multiple planes or multiple arc surfaces, or the inclined portion 330 can also have at least one plane and at least one arc surface, and the above-mentioned planes and arc surfaces are all used to contact the abutting portion 410.

[0126] The inclined portion 330 can have multiple planes. The multiple planes are arranged in sequence in the vertical direction, and at least two of the multiple planes have different inclination angles. Exemplarily, from the first end to the second end of the inclined portion 330, the inclination angles of the multiple planes can gradually decrease. When the weight of the door body 200 is large or the inclination angle of the arc-shaped inclined portion 330 is large, the gravity self-closing effect of the gravity self-closing structure can be ensured. Then, since the inclination angle of the portion of the inclined portion 330 near the second end is smaller, it makes the process of the abutting portion 410 moving to the inclined portion 330 more labor-saving, making the process of the user rotating and opening the door body 200 more convenient.

[0127] Exemplarily, from the first end of the inclined portion 330 to the second end of the inclined portion 330, the inclination angles of multiple planes can gradually increase. During the process of the door body 200 rotating and opening, the abutting portion 410 needs to move from the second end of the inclined portion 330 to the first end of the inclined portion 330. Since the inclination angles of the partial planes near the second end of the inclined portion 330 are relatively large, it makes the movement of the abutting portion 410 to the inclined portion 330 more laborious, further improving the self-closing effect of the gravity self-closing structure.

[0128] The inclined portion 330 can have multiple arc surfaces, and the arc surfaces can protrude away from the transition portion 320. The inclination angle of the upper part of the arc surface is greater than that of the lower part of the arc surface; alternatively, the arc surface can also be concave away from the transition portion 320, and the inclination angle of the upper part of the arc surface is less than that of the lower part of the arc surface.

[0129] Refer to Figure 16 , exemplarily, the abutting portion 410 can be provided with a connected first abutting surface 411 and a second abutting surface 412. The first abutting surface 411 can be inclined relative to the vertical direction, or the first abutting surface 411 can also be parallel to the transition portion 320; the second abutting surface 412 can be inclined relative to the vertical direction, and the second abutting surface 412 can be parallel to the inclined portion 330, so that the movement process of the abutting portion 410 is more stable, and the connection position between the first abutting surface 411 and the second abutting surface 412 can be used to represent the bottom position of the abutting portion 410.

[0130] In a plane parallel to the upper surface of the fixing member 300, for example, in a horizontal plane, both the first abutting surface 411 and the second abutting surface 412 can be provided as arc abutting surfaces. The first abutting surface 411 and the second abutting surface 412 are arranged around the rotation axis 310. The central angle corresponding to the first abutting surface 411 can be equal to the central angle corresponding to the second abutting surface 412, or the central angle corresponding to the first abutting surface 411 can also be greater than or less than the central angle corresponding to the second abutting surface 412.

[0131] Refer to Figures 3 - 12 , taking the bottom of the abutting portion 410 abutting against the transition portion 320 as an example, the movement process of the abutting portion 410 will be described below.

[0132] For example, during the process of the door body 200 rotating and opening, the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 330, so that the abutting portion 410 can move from the second end of the inclined portion 330 to the first end of the inclined portion 330. Then, the bottom or the first abutting surface 411 of the abutting portion 410 abuts against the transition portion 320, and the bottom or the first abutting surface 411 of the abutting portion 410 can move horizontally relative to the transition portion 320, so that the abutting portion 410 can move along the direction away from the inclined portion 330 on the transition portion 320. The abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330, thereby realizing the opening process of the door body 200.

[0133] During the process of the door body 200 rotating and closing, the bottom or the first abutting surface 411 of the abutting portion 410 abuts against the transition portion 320, and the abutting portion 410 can move from the transition portion 320 horizontally to the first end of the inclined portion 330. Then, the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 330, and the abutting portion 410 obliquely moves downward from the first end of the inclined portion 330 to the second end of the inclined portion 330, thereby realizing the closing process of the door body 200.

[0134] One end of the transition portion 320 away from the inclined portion 330 can be arranged at the end of the fixing member 300. During the process of the door body 200 rotating and opening, when the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330, the abutting portion 410 can be arranged in a suspended manner, and the first abutting surface 411 of the abutting portion 410 abuts against one end of the transition portion 320 away from the inclined portion 330, so that the first abutting surface 411 can slide obliquely downward relative to one end of the transition portion 320 away from the inclined portion 330. When the first abutting surface 411 disengages from the transition portion 320, the movable member 400 moves to the lowest point.

[0135] During the process of the door body 200 rotating and closing, the abutting portion 410 moves from the side of the transition portion 320 away from the inclined portion 330 towards the abutting portion 410, so that the first abutting surface 411 of the abutting portion 410 abuts against one end of the transition portion 320 away from the inclined portion 330; and the first abutting surface 411 moves obliquely upward relative to the transition portion 320, so that the first abutting surface 411 moves to the top surface of the transition portion 320. The bottom of the abutting portion 410 abuts against the transition portion 320 and slides relative to the transition portion 320 towards the inclined portion 330; when the abutting portion 410 slides to the first end of the inclined portion 330, the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 330 and moves obliquely downward relative to the inclined portion 330, thereby realizing the closing process of the door body 200.

[0136] It is easy to understand that during the process of the door body 200 rotating to open or close, the door body 200 can move vertically relative to the fixed part 300 under the drive of the movable part 400. When the abutting part 410 moves to the side of the transition part 320 away from the inclined part 330, the movable part 400 moves to the lowest point, and the height of the door body 200 is the lowest; when the abutting part 410 moves to the first end of the inclined part 330, the movable part 400 moves to the highest point, and the height of the door body 200 is the highest.

[0137] It can be seen from this that during the process of the door body 200 rotating to open or close, the moving distance of the door body 200 in the vertical direction is equal to the height difference between the first end of the inclined part 330 and the bottom of the abutting part 410 when the abutting part 410 moves to the side of the transition part 320 away from the inclined part 330, and when the abutting part 410 moves to the first end of the inclined part 330, the height of the bottom of the abutting part 410 can be lower than the height of the transition part 320.

[0138] Exemplarily, the positions of the inclined part 330 and the transition part 320 can be determined according to the opening angle of the door body 200 ; for example, the opening angle of the door body 200 can have initial set angles, a first set angle, a second set angle, and a third set angle that decrease in sequence. Among them, when the opening angle of the door body 200 is set to the initial set angle, the first abutting surface 411 of the abutting part 410 contacts the end of the transition part 320 away from the abutting part 410. When the opening angle of the door body 200 is set to the first set angle, the abutting part 410 is located at the end of the transition part 320 away from the abutting part 410. When the opening angle of the door body 200 is set to the second set angle, the abutting part 410 abuts against the first end of the inclined part 330; when the opening angle of the door body 200 is set to the third set angle, the abutting part 410 abuts against the inclined part 330.

[0139] Exemplarily, when the opening angle of the door body 200 is set to 40 degrees, the opening angle of the door body 200 is set to the initial set angle. When the opening angle of the door body 200 is set to 20 degrees, the opening angle of the door body 200 is set to the first set angle, and the abutting part 410 is located at the end of the transition part 320 away from the inclined part 330. When the opening angle of the door body 200 is set to: , the abutting part 410 abuts against the transition part 320. When the opening angle of the door body 200 is, the opening angle of the door body 200 Set to the second set angle, the abutting portion 410 abuts against the first end of the inclined portion 330. When the opening angle of the door body 200 is set to: the abutting portion 410 abuts against the inclined portion 330. When the opening angle of the door body 200 is the opening angle of the door body 200 is set to the third set angle, the abutting portion 410 abuts against the inclined portion 330.

[0140] The first stage

[0141] During the process of the door body 200 rotating and closing, when the opening angle of the door body 200 is greater than 40 degrees, the abutting portion 410 can be suspended. The moving member 400 and the door body 200 are always at the lowest point. When the opening angle of the door body 200 gradually decreases, the abutting portion 410 can move towards the abutting portion 410.

[0142] The second stage

[0143] When the opening angle of the door body 200 is set to 40 degrees, the opening angle of the door body 200 is set to the initial set angle. When the opening angle of the door body 200 is set to: the first abutting surface 411 moves obliquely upward relative to the transition portion 320, so that the first abutting surface 411 moves to the top surface of the transition portion 320, thereby moving the abutting portion 410 to one end of the transition portion 320 away from the inclined portion 330.

[0144] The third stage

[0145] During the process of the door body 200 rotating and closing, when the opening angle of the door body 200 is set to 20 degrees, the opening angle of the door body 200 is set to the first set angle. The abutting portion 410 is located at one end of the transition portion 320 away from the inclined portion 330. When the opening angle of the door body 200 is set to: the abutting portion 410 abuts against the transition portion 320, and the abutting portion 410 moves from one end of the transition portion 320 away from the inclined portion 330 towards the inclined portion 330. When the opening angle of the door body 200 is the door body 200 is at the second set angle, the abutting portion 410 can move to the first end of the inclined portion 330;

[0146] The fourth stage

[0147] When the opening angle of the door body 200 is set to: When the abutting portion 410 abuts against the inclined portion 330, the door body 200 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 330 towards the second end of the inclined portion 330, and the movable member 400 drives the door body 200 to move downward through the abutting portion 410; when the opening angle of the door body 200 When it is at a certain angle, the door body 200 is at a third set angle. The abutting portion 410 can move to the second end of the inclined portion 330, or the abutting portion 410 can also move to the middle of the inclined portion 330; the door seal located on the rear wall of the door body 200 can surround the access opening, so that the door seal fits against the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0148] In some embodiments, the moving distance of the door body 200 in the vertical direction can be equal to the sum of the height difference between the first end of the inclined portion 330 and the upper surface of the fixing member 300, and the height difference between the upper surface of the fixing member 300 and the lower end of the first abutting surface 411 when the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330; the height difference between the upper surface of the fixing member 300 and the lower end of the first abutting surface 411 when the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330 can be equal to the length of the first abutting surface 411 in the vertical direction. For example, the length of the first abutting surface 411 in the vertical direction can be greater than or equal to 1 mm and less than or equal to 5 mm;

[0149] For example, the length of the first abutting surface 411 in the vertical direction can be set within any one of the length ranges 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 sense of jerk of the user during the door closing process.

[0150] When the abutting portion 410 is located at the first end of the inclined portion 330, the door body 200 is at the highest point, and a first distance is provided between the bottom of the abutting portion 410 and the upper surface of the fixing member 300. The first distance is set to be greater than or equal to 3 mm and less than or equal to 6 mm. For example, the first distance can be set within any one of the distance ranges of 3 mm - 3.5 mm, 3.5 mm - 4 mm, 4 mm - 4.5 mm, 4.5 mm - 5 mm, 5 mm - 5.5 mm, and 5.5 mm - 6 mm.

[0151] When the abutting portion 410 is located at one end of the transition portion 320 away from the inclined portion 330, a second distance is provided between the bottom of the abutting portion 410 and the upper surface of the fixing member 300. The second distance is set to be greater than or equal to 5 mm and less than or equal to 8 mm. For example, the second distance can be set within any one of the distance ranges of 5 mm - 5.5 mm, 5.5 mm - 6 mm, 6 mm - 6.5 mm, 6.5 mm - 7 mm, 7 mm - 7.5 mm, and 7.5 mm - 8 mm, so as to reduce the possibility of the rotating shaft 310 being damaged due to excessive impact force from the door body 200 while ensuring the gravity self-closing effect.

[0152] The moving distance of the door body 200 in the vertical direction can be greater than or equal to 2 mm and less than or equal to 10 mm. For example, the moving distance of the door body 200 in the vertical direction can be set within any one of the length ranges of 2 mm - 3 mm, 3 mm - 4 mm, 4 mm - 5 mm, 5 mm - 6 mm, 6 mm - 7 mm, 7 mm - 8 mm, 8 mm - 9 mm, and 9 mm - 10 mm, so as to weaken the sense of jerk of the user during the door closing process.

[0153] Exemplarily, one end of the transition portion 320 away from the inclined portion 330 faces the front side of the box body 100, and the included angle between the tangent direction of one end of the transition portion 320 away from the inclined portion 330 and the side surface of the box body 100 is less than or equal to 15 degrees. For example, the included angle between the tangent direction of one end of the transition portion 320 away from the inclined portion 330 and the side surface of the box body 100 can be set within any one of the angle ranges of 0 - 5 degrees, 5 - 10 degrees, and 10 - 15 degrees.

[0154] It is easy to understand that in the embodiment of the present application, when the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330, the abutting portion 410 can be suspended, the abutting portion 410 may not be in contact with any surface of the fixing member 300, and the bottom height of the abutting portion 410 can be lower than or equal to the height of the transition portion 320 away from the inclined portion 330. For example, when the bottom of the abutting portion 410 disengages from the transition portion 320, the height of the abutting portion 410 can remain unchanged, or the height of the abutting portion 410 can continue to decrease, thereby further reducing the distance between the movable member 400 and the fixing member 300.

[0155] The fixing member 300 can have a hollowed-out area. When the abutting portion 410 is located on the side of the transition portion 320 away from the inclined portion 330, the abutting portion 410 is located in the hollowed-out area, so that the abutting portion 410 may not be in contact with any surface of the fixing member 300, reducing the friction between the abutting portion 410 and the fixing member 300 and making the rotation process of the door body 200 smoother.

[0156] For example, referring to Figure 13 and Figure 14, when the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330, the abutting portion 410 can abut against the surface of the fixing member 300 facing the movable member 400; however, compared with the embodiment in which the abutting portion 410 abuts against the fixing member 300, in the embodiment of the present application, the abutting portion 410 is suspended, so that there is no need to provide a structure for supporting the abutting portion 410 on the side of the transition portion 320 away from the inclined portion 330, further reducing the assembly space required for the fixing member, making the setting of the gravity self-closing structure more compact; and, since the abutting portion 410 is suspended, the friction between the abutting portion 410 and the fixing member 300 can also be reduced, making the rotation process of the door body 200 smoother.

[0157] Moreover, compared with the embodiment in which the transition portion 320 and the inclined portion 330 are located around the rotation axis 310, by arranging the connected transition portion 320 and inclined portion 330 at intervals from the rotation axis 310, the setting manner of the transition portion 320 and the inclined portion 330 is more flexible, and the bottom of the abutting portion 410 can be closer to the surface of the fixing member 300 facing the movable member 400 relative to the bottom of the rotation groove 420, making the setting of the gravity self-closing structure more compact and reducing the distance between the lower end of the door body 200 and the hinge plate 110.

[0158] When the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330, the abutting portion 410 is suspended, which can further reduce the distance between the lower end of the door body 200 and the hinge plate 110, reduce the assembly space required for the fixing member 300 and the movable member 400, make the setting between the fixing member 300 and the movable member 400 more compact, and thus can increase the height of the door body 200 and the volume of the door body 200; and, when the height of the door body 200 increases, the length of the box body 100 can be increased downward, so that the volume of the box body 100 can be increased without changing the overall height of the refrigerator.

[0159] It should be noted that when the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330, the abutting portion 410 abuts against the upper surface of the fixing member 300, and there is a first interval between the lower surface of the movable member 400 and the upper surface of the fixing member 300, and the width of the first interval is set to d1;

[0160] In the embodiment of the present application, when the abutting portion 410 moves to the side of the transition portion 320 away from the inclined portion 330, the abutting portion 410 is suspended, and the bottom of the abutting portion 410 can move below the upper surface of the fixing member 300, so that the lower surface of the movable member 400 can be closer to the upper surface of the fixing member 300. There is a second interval between the lower surface of the movable member 400 and the upper surface of the fixing member 300, and the width of the second interval is set to d2, and the difference between d1 and d2 can be set to d3;

[0161] It is easily understandable that, compared with the embodiment in which the abutting portion 410 abuts against the fixing member 300, the bottom end of the abutting portion 410 abuts against the upper surface of the fixing member 300. In the embodiment of the present application, d3 can be equal to the height difference between the bottom end of the abutting portion 410 and the upper surface of the fixing member 300, so that the assembly space required for the fixing member 300 and the movable member 400 can be further reduced.

[0162] It should be noted that, in the embodiment in which the abutting portion 410 abuts against the fixing member 300, a supporting portion 312 for supporting is usually required to be provided outside the rotating shaft 310 and / or below the rotating groove 420, so as to form a first interval by jointly supporting with the abutting portion 410. In the embodiment of the present application, by reducing the distance between the lower surface of the movable member 400 and the upper surface of the fixing member 300, the height of the supporting portion 312 is reduced, and thus the distance between the fixing member 300 and the movable member 400 can be further reduced.

[0163] In a plane parallel to the upper surface of the fixing member 300, the sum of the arc lengths of the first abutting surface 411 and the second abutting surface 412 can be set as L1, and the length of L1 is greater than or equal to 20 mm and less than or equal to 40 mm. For example, the length of L1 can be set within any length range of 20 mm - 25 mm, 25 mm - 30 mm, 30 mm - 35 mm, and 35 mm - 40 mm.

[0164] The length of the connection line between the end of the first abutting surface 411 far from the second abutting surface 412 and the end of the second abutting surface 412 far from the first abutting surface 411 can be set as L2, and the ratio of L2 to L1 can be set to be greater than or equal to 0.7 and less than or equal to 0.95. For example, the ratio of L2 to L1 can be set within any ratio range of 0.7 - 0.75, 0.75 - 0.8, 0.85 - 0.9, and 0.9 - 0.95.

[0165] Moreover, the distance between the bottom of the abutting portion 410 and the movable member 400 is set as H1, and the height of H1 is set to be greater than or equal to 2 mm and less than or equal to 4 mm. For example, the height of H1 can be set within any height range of 2 mm - 2.5 mm, 2.5 mm - 3 mm, 3 mm - 3.5 mm, and 3.5 mm - 4 mm.

[0166] Exemplarily, the ratio of H1 to L1 can be set to be greater than or equal to 0.1 and less than or equal to 0.2, and the ratio of H1 to L1 can be set within any ratio range of 0.1 - 0.12, 0.12 - 0.14, 0.14 - 0.16, 0.16 - 0.18, and 0.18 - 0.2, so as to make the lifting process of the door body 200 and the rotating process of the door body 200 smoother and more stable.

[0167] In a plane parallel to the upper surface of the fixed member 300, the distances between the first abutting surface 411 and the second abutting surface 412 and the axis of the rotating shaft 310 are greater than or equal to 15 mm and less than or equal to 40 mm. For example, the distances between the first abutting surface 411 and the second abutting surface 412 and the axis of the rotating shaft 310 can be set within any one of the distance ranges of 15 mm - 20 mm, 20 mm - 25 mm, 25 mm - 30 mm, and 30 mm - 35 mm to ensure the stability of the door body 200 during rotation.

[0168] The distances between the transition portion 320 and the inclined portion 330 and the axis of the rotating shaft 310 can be equal to the distances between the first abutting surface 411 and the second abutting surface 412 and the axis of the rotating shaft 310; the distances between the transition portion 320 and the inclined portion 330 and the axis of the rotating shaft 310 are greater than or equal to 15 mm and less than or equal to 40 mm. For example, the distances between the transition portion 320 and the inclined portion 330 and the axis of the rotating shaft 310 can be set within any one of the distance ranges of 15 mm - 20 mm, 20 mm - 25 mm, 25 mm - 30 mm, and 30 mm - 35 mm to ensure the stability of the door body 200 during rotation.

[0169] During the process of the door body 200 rotating open or rotating closed, the first abutting surface 411 and the second abutting surface 412 are used to abut against the transition portion 320 and the inclined portion 330 of the fixed member 300, and the bottom surface of the rotating groove 420 is used to abut against the top end of the rotating shaft 310. By making the distances between the first abutting surface 411 and the second abutting surface 412 and the axis of the rotating shaft 310 greater than or equal to 15 mm and less than or equal to 40 mm, the position where the fixed member 300 receives the gravity of the door body 200 can be made more uniform, thereby improving the stability of the door body 200 during rotation.

[0170] The transition portion 320 can also be inclined. The end of the transition portion 320 away from the inclined portion 330 is inclined downward, and the inclination angle of the transition portion 320 can be equal to the inclination angle of the inclined portion 330. The first abutting surface 411 is arranged parallel to the transition portion 320. When the door body 200 is between the initial set angle and the second set angle, the first abutting surface 411 can be attached to the transition portion 320, thereby increasing the contact area between the abutting portion 410 and the transition portion 320 and improving the stability of the moving member 400 relative to the fixed member 300 during rotation.

[0171] When the abutting portion 410 is located on the side of the transition portion 320 away from the inclined portion 330, the length of the rotating shaft 310 inserted into the rotating groove 420 is the largest, and the length of the rotating shaft 310 inserted into the rotating groove 420 can be set as the first length; when the abutting portion 410 is located at one end of the transition portion 320 away from the inclined portion 330, the length of the rotating shaft 310 inserted into the rotating groove 420 can be set as the second length; when the abutting portion 410 is located at the first end of the inclined portion 330, the length of the rotating shaft 310 inserted into the rotating groove 420 is the smallest, and the length of the rotating shaft 310 inserted into the rotating groove 420 can be set as the third length; when the abutting portion 410 is located at the second end of the inclined portion 330, the length of the rotating shaft 310 inserted into the rotating groove 420 can be set as the fourth length.

[0172] Among them, the first length, the second length, the fourth length, and the third length of the rotating shaft 310 decrease in sequence, and the ratio of the third length of the rotating shaft 310 to the first length of the rotating shaft 310 is greater than or equal to 2 / 3. For example, the ratio of the third length of the rotating shaft 310 to the first length of the rotating shaft 310 can be set within any one of the ratio ranges of 2 / 3 - 3 / 4, 3 / 4 - 4 / 5, and 4 / 5 - 5 / 6, so as to increase the stability of the rotating shaft 310 moving in the rotating groove 420 in the vertical direction and reduce the possibility of the rotating shaft 310 disengaging from the rotating groove 420.

[0173] Exemplarily, the first length of the rotating shaft 310 can be equal to the depth of the rotating groove 420, that is, when the abutting portion 410 is located on the side of the transition portion 320 away from the inclined portion 330, the end of the rotating shaft 310 away from the fixing member 300 abuts against the bottom surface of the rotating groove 420; an extension portion 311 is provided at the top end of the rotating shaft 310, and in the direction away from the fixing member 300, with a plane perpendicular to the extending direction of the rotating shaft 310 as the cross-section, the cross-sectional area of the extension portion 311 gradually decreases;

[0174] A contraction groove is provided at the bottom of the rotating groove 420, and the contraction groove is used to accommodate the extension portion 311. When the abutting portion 410 is located on the side of the transition portion 320 away from the inclined portion 330, the extension portion 311 can be relatively rotatably arranged in the contraction groove around the extending direction of the rotating shaft 310, so that the relative rotation process between the rotating shaft 310 and the rotating groove 420 is more stable and the possibility of the rotating shaft 310 disengaging from the rotating groove 420 is reduced.

[0175] It should be noted that the fixing member 300 bears part of the gravity from the door body 200 through the connected transition portion 320 and the inclined portion 330, and bears the other part of the gravity from the door body 200 through the rotating shaft 310; by arranging the connected transition portion 320 and the inclined portion 330 at intervals on the rotating shaft 310, the positions where the fixing member 300 bears the gravity of the door body 200 are more evenly dispersed, reducing the possibility of stress concentration and other phenomena occurring on the rotating shaft 310 of the fixing member 300, and reducing the gravity of the door body 200 borne by the rotating shaft 310 of the fixing member 300;

[0176] Moreover, by reducing the gravity of the door body 200 borne by the rotating shaft 310, the diameter of the rotating shaft 310 can be reduced, the required assembly space for the rotating shaft 310 is reduced, the installation position of the rotating shaft 310 is more flexible, and the gravity self-closing structure can be applied to a refrigerator with a smaller diameter of the rotating shaft 310.

[0177] In the direction perpendicular to the door body 200, the distance between the axis of the rotating shaft 310 and the box body 100 can be set to be greater than or equal to 39 mm and less than or equal to 44 mm. For example, the distance between the axis of the rotating shaft 310 and the box body 100 can be set within one of the distance ranges of 39 mm - 40 mm, 40 mm - 41 mm, 41 mm - 42 mm, 42 mm - 43 mm, and 43 mm - 44 mm;

[0178] In the direction parallel to the extending direction of the door body 200, the distance between the axis of the rotating shaft 310 and the edge of the box body 100 can be set to be greater than or equal to 12 mm and less than or equal to 18 mm. For example, the distance between the axis of the rotating shaft 310 and the edge of the box body 100 can be set within one of the distance ranges of 12 mm - 13 mm, 13 mm - 14 mm, 14 mm - 15 mm, 15 mm - 16 mm, 16 mm - 17 mm, and 17 mm - 18 mm.

[0179] Refer to Figure 18 , in some embodiments, an end cover 210 can be provided at the lower end of the door body 200. The end cover 210 can be at least used to connect the movable member 400, and the end cover 210 can be provided with an installation structure for accommodating the movable member 400 to make the installation of the movable member 400 more stable.

[0180] The movable member 400 may be provided with at least one fastener to connect the movable member 400 to the end cover 210 through the fastener. The number of fasteners may be set to a plurality. For example, the first part of the fasteners may be arranged along the extending direction of the door body 200, and the first part of the fasteners and the rotating shaft 310 are located on the same straight line; the connecting line of the second part of the fasteners and the rotating shaft 310 may be perpendicular to the extending direction of the door body 200, so that the connection between the movable member 400 and the door body 200 is more stable;

[0181] In the extending direction of the door body 200, the second abutting surface 412 may be arranged between the first part of the fasteners, and at least one fastener is arranged on the side of the second abutting surface 412 away from the rotating shaft 310, and / or at least one fastener is arranged on the side of the second abutting surface 412 facing the rotating shaft 310. When the door body 200 moves up and down in the vertical direction relative to the fixed member 300, the movable member 400 is connected to the end cover 210 of the door body 200 on both sides along the extending direction of the second abutting surface 412, so that the connection between the movable member 400 and the end cover 210 is more stable and the possibility of the movable member 400 disengaging from the end cover 210 is reduced.

[0182] Among the plurality of fasteners, at least part of the fasteners are arranged around the axis of the rotating shaft 310. When the door body 200 rotates relative to the box body 100 around the rotating shaft 310 through the movable member 400, the part of the fasteners around the axis of the rotating shaft 310 can play a certain role in fixing the moving direction of the movable member 400, and reduce the possibility of the movable member 400 loosening and rotating around the rotating shaft 310 relative to the door body 200.

[0183] Exemplarily, the number of fasteners may be set to three. One fastener is set as the first fastener, and the connecting line of the first fastener and the rotating shaft 310 is perpendicular to the extending direction of the door body 200. The other two fasteners are set as the second fastener and the third fastener, and the connecting lines of the second fastener and the third fastener and the rotating shaft 310 are parallel to the extending direction of the door body 200;

[0184] The second abutting surface 412 is accommodated between the second fastener and the third fastener. The second fastener is arranged on the side of the second abutting surface 412 facing the rotating shaft 310, and the third fastener is arranged on the side of the second abutting surface 412 away from the rotating shaft 310, so that the movable member 400 can be fixed at multiple angles through the three fasteners, and the connection between the movable member 400 and the door body 200 is more stable.

[0185] The mounting structure is formed with a mounting groove 211, and at least one limiting structure can be arranged in the mounting groove 211 to play a certain limiting role on the movable member 400 through the limiting structure, reduce the possibility of the movable member 400 moving relative to the door body 200, and ensure that the movable member 400 can be relatively fixed to the door body 200 during the rotation of the door body 200 around the rotation shaft 310.

[0186] Exemplarily, the mounting structure is further provided with an abutting member 212, at least a part of the abutting member 212 abuts against the outer side of the movable member 400, and the abutting member 212 and the rotation shaft 310 are arranged along the extending direction of the door body 200. In the extending direction of the door body 200, the abutting member 212 can be arranged on the side away from the rotation shaft 310 of the first abutting surface 411 and the second abutting surface 412.

[0187] When the movable member 400 is mounted on the end cover 210, the part of the movable member 400 for forming the rotation groove 420 is inserted into the end cover 210, and the abutting member 212 can cooperate with the rotation groove 420, so that the movable member 400 can be arranged relative to the extending direction of the door body 200, which plays a certain positioning role in the mounting process of the movable member 400 and makes the mounting process of the movable member 400 more convenient.

[0188] Exemplarily, the movable member 400 is provided with a connection port 430, and the end cover 210 is correspondingly provided with a connection block 230. In a plane parallel to the surface of the movable member 400, the connection block 230 can be set as a square connection block 230, or the connection block 230 can also be set as a trapezoidal connection block 230 to play a preliminary positioning role in the mounting process of the movable member 400 through the connection block 230. By setting the connection block 230 as a trapezoidal connection block 230, the trapezoidal connection block 230 can play a certain limiting role in the relative rotation process of the movable member 400, and the trapezoidal connection block 230 can make the mounting process of the movable member 400 more convenient.

[0189] In the circumferential direction along the rotation shaft 310, the connection port 430 is arranged between the first fastener and the second fastener to make the connection between the movable member 400 and the end cover 210 more stable.

[0190] When the movable member 400 is mounted on the end cover 210, the part of the movable member 400 for forming the rotation groove 420 is inserted into the end cover 210, and a part of the movable member 400 is connected to the limiting structure, so that the connection block 230 can be aligned with the connection port 430, and then the connection block 230 is inserted into the connection port 430, so that the connection block 230 can cooperate with the connection port 430 to relatively fix the movable member 400 to the end cover 210 and make the process of connecting the fastener to the movable member 400 more convenient;

[0191] Moreover, the first fastener, the connecting block 230, and the second fastener can be arranged around the rotation axis 310. The first fastener, the connecting block 230, and the second fastener are disposed inside the first abutting surface 411 and the second abutting surface 412, so as to make the connection between the movable member 400 and the end cover 210 more stable.

[0192] The door body 200 is further provided with a blocking member 220. The first part of the blocking member 220 is disposed between the movable member 400 and the end cover 210. The first part of the blocking member 220 is located inside the mounting structure. The second part of the blocking member 220 extends toward the fixing member 300, and the second part of the blocking member 220 can be used to abut against the fixing member 300 and the transition part 320.

[0193] When the abutting part 410 abuts against the inclined part 330 and the door body 200 is at the third set angle, the second part of the blocking member 220 abuts against the fixing member 300 and the transition part 320, so as to play a certain limiting role on the abutting part 410 and the door body 200 through the blocking member 220, reduce the possibility of the abutting part 410 disengaging from the inclined part 330, and thus reduce the possibility of damage to the door body 200 due to excessive rotation angle.

[0194] In some embodiments, the box body 100 can be reused to form the fixing member 300. For example, the hinge assembly located at the lower end of the door body 200 can be reused to form the fixing member 300. The hinge assembly can be provided with a hinge plate 110. The surface of the hinge plate 110 facing the movable member 400 is provided with a rotation axis 310, a transition part 320, and an inclined part 330, so as to realize the formation process of the fixing member 300 through the hinge plate 110, thereby making the structure of the gravity self-closing structure simpler.

[0195] Among them, the rotation axes 310 can be relatively fixed to the hinge plate 110 by means of threads or the like. The rotation axes 310 can be provided with threaded segments. The rotation axes 310 are threadedly connected to the hinge plate 110 through the threaded segments, so as to make the process of connecting the rotation axes 310 to the hinge plate 110 more convenient.

[0196] It is easy to understand that the lower end of the door body 200 is reused to form the movable member 400, and the hinge assembly of the box body 100 is reused to form the fixing member 300, so as to make the assembly process of the gravity self-closing structure more convenient.

[0197] Exemplarily, the rotation axes 310 can be disposed on the hinge plate 110. The hinge plate 110 is further provided with guide posts 111. The guide posts 111 all extend toward the movable member 400. The fixing member 300 is provided with a plurality of guide holes 340. The guide posts 111 pass through the guide holes 340, so as to make the connection between the fixing member 300 and the hinge plate 110 more stable through the cooperation of the guide posts 111 and the guide holes 340, and reduce the possibility of the fixing member 300 disengaging from the hinge plate 110.

[0198] The guide column 111 may include a first guide column 111, which is arranged on a side of the transition portion 320 and the inclined portion 330 away from the rotation axis 310. The angle between the line connecting the first guide column 111 and the rotation axis 310 and the line connecting the end of the transition portion 320 and the inclined portion 330 can be set to be greater than or equal to 75 degrees and less than or equal to 90 degrees. For example, the angle between the line connecting the first guide column 111 and the rotation axis 310 and the line connecting the end of the transition portion 320 and the inclined portion 330 can be set within any angle range of 75 degrees-80 degrees, 80 degrees-85 degrees, and 85 degrees-90 degrees.

[0199] It should be noted that during the process of rotating the door body 200 to close or open, the first guide column 111 and the rotating shaft 310 are respectively arranged on both sides of the transition portion 320 and the inclined portion 330 to make the connection between the fixing member 300 and the hinge plate 110 more stable, thereby reducing the possibility of the fixing member 300 being detached from the hinge plate 110.

[0200] Alternatively, the number of the guide posts 111 may be multiple, and the number of the guide holes 340 may be correspondingly multiple, wherein the guide posts 111 may be a second guide post 111, a third guide post 111, and a fourth guide post 111, the second guide post 111 may be disposed between the rotation axis 310 and the first end of the inclined portion 330, the third guide post 111 is disposed on a side of the inclined portion 330 away from the second guide post 111, and the fourth guide post 111 is disposed on a side of the rotation axis 310 away from the transition portion 320;

[0201] For example, the second guide column 111, the first end of the inclined portion 330 and the third guide column 111 are arranged in a triangle, and the angle between the line between the second guide column 111 and the first end of the inclined portion 330 and the line between the third guide column 111 and the first end of the inclined portion 330 is greater than or equal to 90 degrees; and / or, the second guide column 111, the rotating shaft 310 and the fourth guide column 111 are arranged in a triangle, and the angle between the line between the second guide column 111 and the rotating shaft 310 and the connection between the fourth guide column 111 and the rotating shaft 310 is greater than or equal to 90 degrees, so that the connection between the fixing member 300 and the hinge plate 110 is more stable.

[0202] It should be noted that during the process of rotating the door body 200 to close or open, the second guide column 111 and the third guide column 111 are respectively arranged on both sides of the transition portion 320 and the inclined portion 330 to make the connection between the fixing member 300 and the hinge plate 110 more stable and reduce the possibility of the fixing member 300 detaching from the hinge plate 110.

[0203] Reference Figure 19 and Figure 20, in some embodiments, the fixing member 300 can be relatively fixedly arranged on the box body 100. For example, the fixing member 300 can be directly connected to the box body 100, or the fixing member 300 can also be connected to the box body 100 through a hinge assembly located at the lower end of the door body 200. The materials of the fixing member 300 and the movable member 400 can be set as POM materials.

[0204] Exemplarily, the fixing member 300 can be set in the form of a plate-shaped fixing member 300 or a column-shaped fixing member 300, etc. The first surface of the fixing member 300 can face the box body 100, or the fixing member 300 can also face the hinge plate 110 of the hinge assembly. The second surface of the fixing member 300 faces the lower end of the door body 200, and the second surface of the fixing member 300 is connected to the rotating shaft 310.

[0205] The fixing member 300 can be provided with at least one connecting member 113 so that the fixing member 300 is relatively fixed to the box body 100 through the connecting member 113. For example, the fixing member 300 can be fixed to the hinge plate 110 of the hinge assembly through the connecting member 113.

[0206] The connecting member 113 can be set as a connecting column. The connecting column can be relatively fixedly arranged on the hinge plate 110. The first end of the connecting column is connected to the hinge plate 110, and the second end of the connecting column extends towards the movable member 400. And the fixing member 300 is provided with a movable opening, and the connecting column passes through the movable opening so that the fixing member 300 can be relatively movably arranged on the hinge plate 110 along the extending direction of the connecting column, thereby enabling the fixing of the fixing member 300 and the hinge plate 110 through the connecting column.

[0207] The connecting member 113 can also be set as structures such as fixing bolts, fixing pins, etc., or the connecting member 113 can also be set as structures such as snap joints, etc., so that the fixing member 300 can be detachably connected to the hinge plate 110 by means of snap connection, etc.

[0208] The number of the connecting members 113 can be set as one or more. When the number of the connecting members 113 is set as multiple, the multiple connecting members 113 can be evenly distributed on the fixing member 300, and the extending directions of the multiple connecting members 113 are arranged parallel to each other, so that the process of the fixing member 300 moving along the extending direction of the connecting member 113 is more stable.

[0209] Exemplarily, the rotating shaft 310 can also be arranged on the hinge plate 110. The extending directions of the rotating shaft 310 are all parallel to the extending direction of the connecting member 113. And the fixing member 300 can be provided with through holes, and the through holes can be at least used for passing through the rotating shaft 310, so that one end of the rotating shaft 310 departing from the hinge plate 110 can pass through the fixing member 300 and extend towards the movable member 400, and the fixing member 300 can move along the extending direction of the first connecting member 113 through two through holes.

[0210] When the fixing member 300 is relatively fixed to the box body 100, the fixing member 300 can be moved in a direction close to the hinge plate 110, so that the connecting column passes through the movable opening, and the rotating shaft 310 relatively fixed to the hinge plate 110 can pass through the through hole. The first surface of the fixing member 300 faces the hinge plate 110, thereby relatively fixing the fixing member 300 to the box body 100.

[0211] It is easy to understand that when the fixing member 300 is installed on the hinge plate 110, the cooperation between the guide post 111 and the guide hole 340 can make the connection process between the fixing member 300 and the hinge plate 110 more convenient, and multiple guide posts 111 can make the positioning process of the fixing member 300 more convenient.

[0212] Exemplarily, the fixing member 300 can also be provided with an adjusting member 112. The first end of the adjusting member 112 can be connected to the fixing member 300, the second end of the adjusting member 112 is connected to the hinge plate 110, and the second end of the adjusting member 112 can be telescopically arranged along the extending direction of the connecting column, so as to adjust the distance between the fixing member 300 and the hinge plate 110 through the adjusting member 112.

[0213] It is easy to understand that the movable member 400 is relatively fixed to the door body 200. When the distance between the fixing member 300 and the hinge plate 110 is adjusted through the adjusting member 112, since the distance between the movable member 400 and the fixing member 300 remains relatively fixed, the distance between the movable member 400 and the door body 200 and the hinge plate 110 can be changed. When the height of the door body 200 needs to be adjusted, the height of the door body 200 can be adjusted by adjusting the distance between the fixing member 300 and the hinge plate 110 through the adjusting member 112.

[0214] The fixing member 300 can be provided with an adjusting plate. The first surface of the adjusting plate is connected to the adjusting member 112, and the second surface of the adjusting plate is connected to the fixing member 300, so that the fixing member 300 is connected to the adjusting member 112 through the connecting plate 114. The material of the adjusting plate can be set as a metal material.

[0215] In a plane parallel to the upper surface of the fixing member 300, the area of the adjusting plate can be greater than or equal to the area of the upper surface of the fixing member 300. For example, the area of the adjusting plate can be greater than the area of the upper surface of the fixing member 300. For example, the ratio of the area of the adjusting plate to the area of the upper surface of the fixing member 300 can be set to be greater than or equal to 1 and less than or equal to 1.5. For example, the ratio of the area of the adjusting plate to the area of the upper surface of the fixing member 300 can be set within any ratio range of 1 - 1.1, 1.1 - 1.2, 1.2 - 1.3, 1.3 - 1.4, and 1.4 - 1.5, so as to make the thrust provided by the adjusting plate to the fixing member 300 more uniform.

[0216] The thickness of the adjusting plate can be set to be greater than or equal to 2.5 mm and less than or equal to 4 mm. For example, the thickness of the adjusting plate can be set to one of 2.5 mm - 3 mm, 3 mm - 3.5 mm, and 3.5 mm - 4 mm. The thickness of the adjusting plate can be less than or equal to the thickness of the fixing member 300. The ratio of the thickness of the adjusting plate to the thickness of the fixing member 300 can be set to be greater than or equal to 0.3 and less than or equal to 0.6. The ratio of the thickness of the adjusting plate to the thickness of the fixing member 300 can be set within any one of the ratio ranges of 0.3 - 0.35, 0.35 - 0.4, 0.4 - 0.45, 0.45 - 0.5, 0.5 - 0.55, and 0.55 - 0.6.

[0217] When it is necessary to adjust the height of the fixing member 300, the height of the adjusting plate can be changed through the adjusting member 112, so that the fixing member 300 can be driven by the adjusting plate to move up and down in the vertical direction, thereby reducing the possibility of the adjusting member 112 directly contacting the fixing member 300 and reducing the possibility of the fixing member 300 being damaged by collision.

[0218] Refer to Figures 21 - 23 Moreover, the adjusting plate can also be provided with at least one convex portion 115. The number of the convex portions 115 can be set to one or more. The convex portions 115 protrude towards the fixing member 300, and the surface of the convex portions 115 facing away from the fixing member 300 is concave, so as to increase the support strength of the adjusting plate, increase the stability of the adjusting plate, and reduce the possibility of the adjusting plate being deformed or the like.

[0219] The adjusting member 112 can be set as an adjusting bolt. The first end of the adjusting bolt can be rotatably connected to the fixing member 300. The adjusting bolt can be threadedly connected to the hinge plate 110, and the second end of the adjusting bolt can protrude relative to the surface of the hinge plate 110 facing away from the fixing member 300. When it is necessary to adjust the distance between the fixing member 300 and the hinge plate 110, the adjusting bolt can be rotated so that the threaded section of the adjusting bolt is screwed into or out of the hinge plate 110, thereby changing the length of the adjusting bolt located between the fixing member 300 and the hinge plate 110, so as to realize the adjustment process of the distance between the fixing member 300 and the hinge plate 110, and be able to adjust the height of the refrigerator door body 200, reducing the possibility of the refrigerator door body 200 being uneven up and down.

[0220] In addition, the convex portion 115 can be reused to connect the adjusting bolt. The convex portion 115 can correspond to the center of gravity of the fixing plate. The surface of the convex portion 115 facing away from the fixing member 300 is reused to connect the adjusting bolt, so as to play a certain positioning role on the adjusting bolt through the convex portion 115, making the process of the adjusting bolt driving the fixing member 300 to move up and down in the vertical direction through the adjusting plate more stable.

[0221] Alternatively, the adjusting member 112 can also be set as an adjusting nut. The adjusting nut can be threadedly connected to the connecting column, and the surface of the adjusting nut facing away from the hinge plate 110 abuts against the fixing member 300. When it is necessary to adjust the distance between the fixing member 300 and the hinge plate 110, the adjusting nut can be rotated to move the adjusting nut along the extending direction of the connecting column, so as to change the length of the connecting column between the fixing member 300 and the hinge plate 110, thereby realizing the adjustment process of the distance between the fixing member 300 and the hinge plate 110.

[0222] Exemplarily, the connecting member 113 can also be reused to form an adjusting nut. For example, the connecting member 113 can be rotatably arranged on the hinge plate 110 around the extending direction of the connecting member 113, and the first end of the connecting member 113 protrudes from the surface of the hinge plate 110 facing away from the fixing member 300. The connecting member 113 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 110, the connecting member 113 can be rotated to screw the threaded section of the connecting member 113 into or out of the fixing member 300, so as to change the length of the connecting member 113 between the fixing member 300 and the hinge plate 110, thereby realizing the adjustment process of the distance between the fixing member 300 and the hinge plate 110.

[0223] Alternatively, the connecting member 113 can be rotatably arranged on the fixing member 300 around the extending direction of the connecting member 113, and the first end of the connecting member 113 protrudes from the surface of the fixing member 300 facing away from the hinge plate 110. The connecting member 113 is threadedly connected to the hinge plate 110. When it is necessary to adjust the distance between the fixing member 300 and the hinge plate 110, the connecting member 113 can be rotated to screw the threaded section of the connecting member 113 into or out of the hinge plate 110, so as to change the length of the connecting member 113 between the fixing member 300 and the hinge plate 110, thereby realizing the adjustment process of the distance between the fixing member 300 and the hinge plate 110.

[0224] The rotating shaft 310 can be arranged on the hinge plate 110, and the rotating shaft 310 passes through the adjusting plate and the fixing member 300, so that at least part of the rotating shaft 310 extends towards the movable member 400, and the length of the rotating shaft 310 can be greater than or equal to 8 millimeters and less than or equal to 18 millimeters. For example, the length of the rotating shaft 310 can be set to any length within the ranges of 8 millimeters - 10 millimeters, 10 millimeters - 12 millimeters, 12 millimeters - 14 millimeters, 14 millimeters - 16 millimeters, and 16 millimeters - 18 millimeters.

[0225] Moreover, the adjustment range for the adjusting member 112 to adjust the height of the fixing member 300 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 for the adjusting member 112 to adjust the height of the fixing member 300 can be set to any one of the following adjustment ranges: 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.

[0226] It is easy to understand that the length of the rotating shaft 310 will affect the adjustment range for the adjusting member 112 to adjust the height of the fixing member 300. For example, when the length of the rotating shaft 310 is larger and the length of the rotating shaft 310 extending out of the fixing member 300 remains unchanged, the adjustment range for the adjusting member 112 to adjust the height of the fixing member 300 is larger.

[0227] 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 them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and 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.

[0228] For the sake of explanation, the above description has been made in connection with specific embodiments. However, the above exemplary discussions are not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for the purpose of better explaining 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, Comprising: A box body, which forms a receiving cavity; A door body, which is rotatably arranged on the box body around a rotation axis to close or open the receiving cavity; A gravity self-closing structure, which is arranged at the lower end of the door body. The gravity self-closing structure includes a cooperating fixed part and a movable part; the fixed part is arranged on the box body, the fixed part includes a transition part and an inclined part, the first end of the inclined part is connected to the transition part, and the second end of the inclined part inclines downward; the movable part is arranged on the door body, and the movable part includes an abutting part; During the process of the door body rotating and closing, the abutting part moves from the transition part to the inclined part. When the abutting part moves on the inclined part, the door body moves downward. When the door body is in the closed state, the abutting part abuts against the inclined part.

2. The refrigerator according to claim 1, wherein, The transition part and the inclined part are arranged around the rotation axis. The transition part is arranged parallel to the horizontal plane, or the height of the end of the transition part away from the inclined part is less than the height of the first end of the inclined part.

3. The refrigerator according to claim 2, characterized in that, In a plane perpendicular to the rotation axis, the central angle corresponding to the transition part is less than the central angle corresponding to the inclined part; And / or, the height of the end of the transition part away from the inclined part is less than the height of the first end of the inclined part, and the inclination angle of the transition part is less than or equal to the inclination angle of the inclined part.

4. The refrigerator according to claim 3, characterized in that, The height difference between the first end and the second end of the inclined part in the vertical direction is greater than or equal to 1 mm and less than or equal to 5 mm; And / or, the inclination angle of the inclined part is less than or equal to 40 degrees.

5. The refrigerator according to claim 1, characterized in that, The abutting part includes a connected first abutting surface and a second abutting surface. The first abutting surface is arranged parallel to the transition part, and the second abutting surface is arranged parallel to the inclined part; During the process of the door body rotating and closing, the movable part abuts against the transition part through the first abutting surface, and the movable part abuts against the inclined part through the second abutting surface.

6. The refrigerator according to claim 5, characterized in that, The height of the end of the transition part away from the inclined part is less than the height of the first end of the inclined part, and the inclination angle of the transition part is equal to the inclination angle of the inclined part; The first abutting surface is inclined relative to the vertical direction, the second abutting surface is inclined relative to the vertical direction, and the inclination angle of the first abutting surface is equal to the inclination angle of the second abutting surface.

7. The refrigerator according to claim 5, characterized in that, The distances between the transition part, the inclined part and the axis of the rotation axis are greater than or equal to 15 mm and less than or equal to 40 mm.

8. The refrigerator according to any one of claims 1-7, characterized in that, When the abutting part is located on the side of the transition part away from the inclined part, the length of the rotation axis located in the rotation groove is set as a first length; when the abutting part is located at the end of the transition part away from the inclined part, the length of the rotation axis located in the rotation groove is set as a second length; when the abutting part is located at the first end of the inclined part, the length of the rotation axis located in the rotation groove is set as a third length; The ratio of the third length of the rotation axis to the first length of the rotation axis is greater than or equal to 2 / 3.

9. The refrigerator according to any one of claims 1-7, characterized in that, The fixed part can be relatively movably arranged on the box body in the vertical direction.

10. A refrigerator, characterized in that, It includes a box body, a door body and a gravity self-closing structure. The door body is used to close or open the accommodation cavity of the box body; the opening angles of the door body relative to the box body have a first set angle, a second set angle and a third set angle that decrease in sequence. The gravity self-closing structure is arranged at the lower end of the door body. The gravity self-closing structure includes a cooperating fixed part and a movable part; the fixed part is arranged on the box body. The fixed part includes a transition part and an inclined part. The first end of the inclined part is connected to the transition part, and the second end of the inclined part inclines downward; the movable part is arranged on the door body, and the movable part includes an abutting part. During the process of the door body rotating from the first set angle to close to the second set angle, the abutting part moves from the end of the transition part away from the inclined part to the first end of the inclined part. During the process of the door body rotating from the second set angle to close to the third set angle, the abutting part moves obliquely downward from the first end of the inclined part to the second end of the inclined part.

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