Hinge structure and refrigerator

Abstract

The utility model discloses a hinge structure and a refrigerator, and relates to the technical field of refrigerators, the hinge structure comprises a fixed seat, a mounting seat and a connecting rod assembly, the fixed seat is mounted on a refrigerator main body through a fastener; the mounting seat is mounted on a refrigerator door body; the connecting rod assembly comprises a first swing rod structure and a second swing rod structure which are rotationally connected, the end, away from the second swing rod structure, of the first swing rod structure is rotationally connected with the fixing base, and the length of the first swing rod structure is larger than that of the second swing rod structure. The maximum opening and closing angle, relative to the fixing base, of the first swing rod structure is larger than or equal to a preset angle so as to avoid installation of the fastener, and the end, away from the first swing rod structure, of the second swing rod structure is connected with the refrigerator door body. According to the technical scheme, the hinge structure and the refrigerator body can be conveniently installed.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a hinge structure and a refrigerator. Background Technology

[0002] The refrigerator body and refrigerator door are installed together by a hinge structure to ensure that the refrigerator door can open and close normally. The hinge structure is installed on the fixed base by fasteners such as screws. However, in the existing technology, the installation of the hinge structure and the refrigerator body is relatively inconvenient due to the obstruction effect of the hinge structure itself. Utility Model Content

[0003] The main purpose of this utility model is to propose a hinge structure and a refrigerator, which is designed to facilitate the installation of the hinge structure and the refrigerator body.

[0004] To achieve the above objectives, the hinge structure proposed in this utility model includes:

[0005] The mounting bracket is installed on the refrigerator body using fasteners.

[0006] Mounting bracket for installation on the refrigerator door; and

[0007] The linkage assembly includes a first swing arm structure and a second swing arm structure that are rotatably connected. The end of the first swing arm structure away from the second swing arm structure is rotatably connected to the fixed seat. The length of the first swing arm structure is greater than the length of the second swing arm structure, and the maximum opening angle of the first swing arm structure relative to the fixed seat is greater than or equal to a preset angle to avoid the installation of the fastener. The end of the second swing arm structure away from the first swing arm structure is connected to the refrigerator door.

[0008] In one embodiment, the preset angle is greater than or equal to 90°.

[0009] In one embodiment, the first pendulum structure includes a first main pendulum, and the second pendulum structure includes a second main pendulum and a second auxiliary pendulum. One end of the second main pendulum is connected to the mounting base, and the other end is connected to the fixed base. One end of the second auxiliary pendulum is rotatably connected to the mounting base, and the other end is rotatably connected to the first main pendulum. The second auxiliary pendulum is located on the side of the second main pendulum closer to the fixed base, and the end of the first main pendulum away from the second main pendulum is connected to the fixed base. The length of the first main pendulum is greater than the length of the second main pendulum, and the maximum opening and closing angle of the first main pendulum relative to the fixed base is greater than or equal to a preset angle.

[0010] In one embodiment, the length of the first main pendulum is greater than or equal to twice the length of the second main pendulum.

[0011] In one embodiment, the first pendulum structure further includes a first auxiliary pendulum, one end of which is rotatably connected to the fixed base, and the other end is rotatably connected to the second auxiliary pendulum, and the first auxiliary pendulum is disposed between the first main pendulum and the mounting base.

[0012] In one embodiment, the fixing base includes a first fixing part and a second fixing part that are bent and connected. The first fixing part is fixed to the refrigerator body by fasteners, and one end of the first swing rod structure is disposed at the second fixing part; and / or, it is disposed near the connecting corner of the first fixing part and the second fixing part.

[0013] In one embodiment, the maximum opening angle of the first swing arm structure relative to the fixed seat is less than or equal to 115° and greater than or equal to 110°.

[0014] In one embodiment, the fixing base is provided with a pre-installation hole and a mounting hole that are connected to each other. The pre-installation hole is located on the side of the mounting hole that is away from the first swing arm structure, and the inner diameter of the pre-installation hole is larger than the inner diameter of the mounting hole.

[0015] The pre-installation hole is used for the fastener to pass through, and the fastener presses the edge of the installation hole against the refrigerator body.

[0016] In one embodiment, the fixed base has an installation notch at the end away from the first swing arm structure. The notch portion of the installation notch is disposed away from the fixed part. The fastener is inserted into the installation notch portion by the notch portion and presses the edge of the installation notch against the refrigerator body.

[0017] This utility model also proposes a refrigerator, including the hinge structure described above.

[0018] The technical solution of this utility model utilizes a hinge structure, which includes a fixed base, a mounting base, and a connecting rod assembly. The fixed base is installed on the refrigerator body, and the mounting base is installed on the refrigerator door. The connecting rod assembly includes a first swing arm structure and a second swing arm structure. One end of the first swing arm structure is drivenly connected to the fixed base, and the other end is drivenly connected to the second swing arm structure. The end of the second swing arm structure away from the first swing arm structure is drivenly connected to the mounting base. This allows the refrigerator door to be installed on the refrigerator body and enables the refrigerator door to open and close. In this solution, the length of the first swing arm structure is appropriately increased, and the length of the second swing arm structure is appropriately reduced, so that the length of the first swing arm structure is greater than the length of the second swing arm structure. This also makes the opening and closing angle of the first swing arm structure greater than or equal to a preset angle, thereby increasing the maximum opening angle of the first swing arm structure and increasing the space between the first swing arm structure and the fixed base, allowing operators to install fasteners and facilitating user operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of an angle structure of an embodiment of the hinge structure provided by this utility model;

[0021] Figure 2 for Figure 1 Another structural diagram of the hinge structure from a different angle;

[0022] Figure 3 for Figure 2 A cross-sectional view of the central hinge structure along AA;

[0023] Figure 4 for Figure 1 A schematic diagram of the hinge structure in the closed state at one angle;

[0024] Figure 5 for Figure 4 Another structural diagram of the hinge structure from a different angle;

[0025] Figure 6 for Figure 5 A cross-sectional view of the central hinge structure along BB.

[0026] Explanation of icon numbers:

[0027] 1. Hinge structure; 11. Fixing base; 111. First fixing part; 112. Second fixing part; 113. Pre-installation hole; 114. Mounting hole; 115. Mounting notch; 1151. Notch; 116. First fastener; 117. Second fastener; 118. Guide section; 12. Mounting base; 13. Linkage assembly; 131. First main swing arm; 132. First auxiliary swing arm; 133. Second main swing arm; 134. Second auxiliary swing arm; 135. First swing arm structure; 136. Second swing arm structure.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] This utility model proposes a hinge structure 1 for use in household appliances such as refrigerators.

[0033] Please see Figures 1 to 6 In one embodiment of this utility model, the hinge structure 1 includes:

[0034] The mounting bracket 11 is installed on the refrigerator body by fasteners;

[0035] Mounting bracket 12 is used for mounting on the refrigerator door; and

[0036] The linkage assembly 13 includes a first swing arm structure 135 and a second swing arm structure 136 that are rotatably connected. The end of the first swing arm structure 135 away from the second swing arm structure 136 is rotatably connected to the fixed seat 11. The length of the first swing arm structure 135 is greater than the length of the second swing arm structure 136, and the maximum opening and closing angle of the first swing arm structure 135 relative to the fixed seat 11 is greater than or equal to a preset angle to avoid the installation of fasteners. The end of the second swing arm structure 136 away from the first swing arm structure 135 is connected to the refrigerator door.

[0037] Specifically, the fixed base 11 is installed on the refrigerator body, and the mounting base 12 is installed on the refrigerator door. One end of the connecting rod assembly 13 is driven to the fixed base 11, and the other end is driven to the mounting base 12, thereby realizing the installation of the refrigerator door and the refrigerator body and enabling the refrigerator door to open and close. The connecting rod assembly 13 includes a first swing arm structure 135 and a second swing arm structure 136. One end of the first swing arm structure 135 is driven to the fixed base 11, and the other end is driven to the second swing arm structure 136. The end of the second swing arm structure 136 away from the first swing arm structure 135 is driven to the mounting base 12. The fixed base 11 is fastened to the refrigerator body with fasteners, thus facilitating the installation of the hinge structure 1 and the refrigerator body while ensuring installation stability. These fasteners can be screws or the like.

[0038] In actual installation, the mounting base 12 is usually installed on the refrigerator door first, and then the fixing base 11 is installed on the refrigerator body. The fixing base 11 is installed on the inner edge of the opening of the refrigerator body. During installation, the refrigerator door is opened to its maximum, and the hinge structure 1 is also opened to its maximum accordingly. However, in the prior art, in order to ensure that the hinge structure 1 has a better movement path, to ensure the smooth movement of the hinge structure 1, and to reduce the possibility of jamming when the refrigerator door is closed after the hinge structure 1 is folded and compressed after the refrigerator door is opened to its maximum, the opening angle of the first swing arm structure 135 relative to the fixing base 11 is often small. As a result, the first swing arm structure 135 not only obstructs the operator's view during installation, but also provides little space for the operator to install the first swing arm structure 135 and the fixing base 11, making installation inconvenient. Therefore, in this solution, by optimizing the linkage assembly 13, the maximum opening angle of the first main swing arm 131 relative to the fixed seat 11 is greater than or equal to the preset angle, thereby increasing the maximum opening angle of the first swing arm structure 135, and thus increasing the space between the first swing arm structure 135 and the fixed seat 11, so that the operator can install fasteners, thereby facilitating user operation.

[0039] In the prior art, the maximum opening angle of the refrigerator door is generally greater than 90°, typically between 110° and 115°. Therefore, preferably, the preset angle is greater than or equal to 90°, that is, the maximum opening angle of the first hinge structure 1 relative to the fixed seat 11 is greater than or equal to 90°. This not only increases the space between the first swing rod structure 135 and the fixed seat 11, but also reduces the obstruction of the user's view by the first hinge structure 1, making it easier for operators to observe the installation process and whether the installation is in place.

[0040] Experiments revealed that, under the premise of ensuring a sufficiently smooth movement path for the hinge structure 1, when the refrigerator door is opened to the same opening angle, the longer the length of the first swing arm structure 135, the greater the deflection angle of the first swing arm. That is, the opening angle of the first swing arm structure 135 relative to the fixed seat 11 is greater. Therefore, in this solution, the length of the first swing arm structure 135 is appropriately increased, and the length of the second swing arm structure 136 is appropriately reduced, so that the length of the first swing arm structure 135 is greater than the length of the second swing arm structure 136, and the opening angle of the first swing arm structure 135 is greater than or equal to the preset angle, thereby increasing the maximum opening angle of the first swing arm structure 135, which facilitates the installation of the fixed seat 11 and the refrigerator body.

[0041] It should be noted that this solution does not restrict the installation steps of the hinge structure 1 and the refrigerator. As long as the installation of the mounting base 12 and the refrigerator door, and the installation of the fixing base 11 and the refrigerator body can be achieved, they are all within the protection scope of this solution. The first swing arm structure 135 may include only one swing arm or multiple swing arms. In this case, one swing arm is often used as the main swing arm, which determines the overall movement path of the first swing arm structure 135. The second swing arm structure 136 may also include only one swing arm or multiple swing arms. In this case, one swing arm is often used as the main swing arm, which determines the overall movement path of the second swing arm structure 136. If both the first pendulum structure 135 and the second pendulum structure 136 have only one pendulum structure, then the first pendulum structure 135 is undoubtedly longer than the second pendulum structure 136. However, when it has multiple pendulums, the fact that the length of the first pendulum structure 135 is longer than the length of the second pendulum structure 136 does not mean that the length of all the pendulums in the first pendulum structure 135 is longer than the length of all the pendulums in the second pendulum structure 136. It only means that the overall structure of the first pendulum structure 135 is longer than the overall structure of the second pendulum structure 136.

[0042] In other embodiments, the mounting base 12 and the refrigerator door can also be installed using fasteners with fastening screws, thereby facilitating the installation of the hinge structure 1 and ensuring the stability of the installation.

[0043] Reference Figure 3 and Figure 6In an embodiment of this utility model, the first swing arm structure 135 includes a first main swing arm 131, and the second swing arm structure 136 includes a second main swing arm 133 and a second auxiliary swing arm 134. One end of the second main swing arm 133 is connected to the mounting base 12, and the other end is connected to the fixed base 11. One end of the second auxiliary swing arm 134 is rotatably connected to the mounting base 12, and the other end is rotatably connected to the first main swing arm 131. The second auxiliary swing arm 134 is located on the side of the second main swing arm 133 near the fixed base 11, and the end of the first main swing arm 131 away from the second main swing arm 133 is connected to the fixed base 11. The length of the first main swing arm 131 is greater than the length of the second main swing arm 133, and the maximum opening and closing angle of the first main swing arm 131 relative to the fixed base 11 is greater than or equal to a preset angle.

[0044] Specifically, one end of the second main swing arm 133 and the second auxiliary swing arm 134 are both connected to the mounting base 12, and the other end is connected to the first main swing arm 131. Therefore, the second main swing arm 133 and the second auxiliary swing arm 134 are spaced apart between the mounting base 12 and the first swing arm structure 135. However, during the movement of the linkage assembly 13, the rotation angles of the second main swing arm 133 and the second auxiliary swing arm 134 relative to the first swing arm structure 135 can be the same or different. The first main swing arm 131 and the second main swing arm 133 serve as the main structure of the linkage assembly 13. Therefore, one end of the first main swing arm 131 is rotatably connected to the fixed base 11, and the other end is rotatably connected to the second main swing arm 133. The second auxiliary swing arm 134 is located on the side of the second main swing arm 133 closest to the fixed base 11, so that the second auxiliary swing arm 134 serves as an auxiliary structure for the second main swing arm 133, used to limit the relative swing of the second main swing arm 133 and assist the movement of the first main swing arm 131. This allows the first main swing arm 131, the second main swing arm 133, and the second auxiliary swing arm 1341 to work together to control the rotation angle of the refrigerator door.

[0045] Furthermore, since the first main swing arm 131 and the second main swing arm 133 form the main structure of the linkage assembly 13, the second auxiliary swing arm 134 only assists the movement of the second main swing arm 133, and its influence on the movement path of the first main swing arm 131 is negligible. Therefore, the length of the first main swing arm 131 is greater than the length of the second main swing arm 133, which ensures that the maximum opening and closing angle of the first main swing arm 131 relative to the fixed seat 11 is greater than or equal to the preset angle. The length of the second auxiliary swing arm 134 can be equal to or slightly greater than the length of the first main swing arm 131, and its specific length is determined by the connection position between the second auxiliary swing arm 134 and the mounting seat 12, and the connection position between the second auxiliary swing arm 134 and the first main swing arm 131.

[0046] More preferably, the length of the first main swing arm 131 is greater than or equal to twice the length of the second main swing arm 133, thereby further increasing the length of the first main swing arm 131, thereby increasing the maximum opening and closing angle of the first main swing arm 131, and further facilitating user installation.

[0047] In other embodiments, the first swing arm structure 135 includes a first main swing arm 131, and the second swing arm structure 136 includes a second main swing arm 133. One end of the first main swing arm 131 is connected to the fixed base 11, and the other end is connected to the second main swing arm 133. The end of the second main swing arm 133 away from the first main swing arm 131 is connected to the mounting base 12. The length of the first main swing arm 131 is greater than the length of the second main swing arm 133, and the maximum opening and closing angle of the first main swing arm 131 relative to the fixed base 11 is greater than or equal to a preset angle.

[0048] Furthermore, the first swing arm structure 135 also includes a first auxiliary swing arm 132. One end of the first auxiliary swing arm 132 is rotatably connected to the fixed base 11, and the other end is rotatably connected to the second auxiliary swing arm 134. The first auxiliary swing arm 132 is located between the first main swing arm 131 and the mounting base 12. Specifically, the first auxiliary swing arm 132 is connected to the fixed base 11 and the second auxiliary swing arm 134 respectively, so that the first auxiliary swing arm 132 can assist the first main swing arm 131 in its work. Thus, the first auxiliary swing arm 132 and the second auxiliary swing arm 134 serve as auxiliary structures to jointly limit the relative swing of the first main swing arm 131 and the second main swing arm 133, and assist the movement of the first main swing arm 131 and the second main swing arm 133. This further optimizes the movement path of the linkage assembly 13, improves the smoothness of the refrigerator door opening and closing process, and facilitates the reverse closing when the refrigerator door is opened to its maximum, reducing the possibility of jamming in the hinge structure 1.

[0049] The length of the first auxiliary pendulum 132 often depends on the connection position between the first auxiliary pendulum 132 and the mounting base 12, the connection position between the first auxiliary pendulum 132 and the second auxiliary pendulum 134, and the connection position between the second auxiliary pendulum 134 and the first main pendulum 131. Therefore, in this solution, the length of the first auxiliary pendulum 132 is not limited.

[0050] In one embodiment, the maximum opening angle of the first swing arm structure 135 relative to the fixed base 11 is less than or equal to 115° and greater than or equal to 110°, thereby further increasing the maximum opening angle of the first swing arm structure 135 and further facilitating user installation. Since the maximum opening angle range of the refrigerator door is generally 110° to 115°, the maximum opening angle of the first swing arm structure 135 is basically equal to or has a small difference from the maximum opening angle of the refrigerator door, thus facilitating the folding and retraction of the hinge structure 1 and reducing the possibility of the hinge structure 1 getting stuck due to an excessively large opening angle of the first swing arm structure 135.

[0051] To further facilitate the installation of fasteners, in one embodiment, please refer to... Figures 3 to 6 The mounting base 11 includes a first fixing part 111 and a second fixing part 112 that are bent and connected. The first fixing part 111 is fixed to the refrigerator body by fasteners. One end of the first swing rod structure 135 is located at the second fixing part 112; and / or, it is located near the connecting corner of the first fixing part 111 and the second fixing part 112. In this embodiment, the first main swing rod 131 is located near the connecting corner of the first fixing part 111 and the second fixing part 112, and the first auxiliary swing rod 132 is located at the second fixing part 112. This makes the first swing rod structure 135 entirely located at the end of the first fixing part 111 near the second fixing part 112, thereby increasing the distance between the first swing rod structure 135 and the fasteners and providing more installation space and area for the fasteners.

[0052] In other embodiments, the first main swing arm 131 and the first auxiliary swing arm 132 are both located near the connecting corner of the first fixing part 111 and the second fixing part 112; or, the first main swing arm 131 and the first auxiliary swing arm 132 are both located on the second fixing part 112.

[0053] Please see Figure 1 , Figure 2 and Figure 5 In an embodiment of this utility model, the fixing base 11 is provided with a pre-installation hole 113 and a mounting hole 114 that are connected. The pre-installation hole 113 is located on the side of the mounting hole 114 away from the first swing rod structure 135, and the inner diameter of the pre-installation hole 113 is larger than the inner diameter of the mounting hole 114. The pre-installation hole 113 is used for fasteners to pass through, and the fasteners press against the edge of the mounting hole 114 against the refrigerator body. Specifically, the pre-installation hole 113 communicates with the installation hole 114, and the inner diameter of the pre-installation hole 113 is larger than the inner diameter of the installation hole 114. During actual installation, the mounting base 12 can be installed on the refrigerator door first, and the fastener can be pre-installed on the refrigerator door. Then, the pre-installation hole 113 is fitted onto the fastener, thereby pre-hanging and fixing the hinge structure 1 and the refrigerator door onto the refrigerator door. Then, the fixing base 11 is pushed or pulled, causing the fastener to slide into the installation hole 114, further tightening the fastener and pressing it against the edge of the installation hole 114 against the refrigerator body, thus completing the installation of the hinge structure 1. Installation is convenient. Furthermore, the pre-installation hole 113 is located on the side of the installation hole 114 away from the first swing arm structure 135, that is, on the side away from the first swing arm structure 135, further reducing the obstruction of the user's view by the first swing arm structure 135, thus facilitating the pre-hanging installation of the hinge structure 1 and the fastener. Furthermore, in order to further increase the distance between the pre-installation hole 113 and the first swing arm structure 135, the pre-installation hole 113 and the installation hole 114 are spaced apart and connected by the guide section 118, thereby facilitating the fastener to slide into the installation hole 114.

[0054] Furthermore, the fixed base 11 has an installation notch 115 at the end away from the first swing arm structure 135. The notch portion 1151 of the installation notch 115 is set away from the fixed part. The fastener is inserted into the installation notch 115 by the notch portion 1151 and presses the edge of the installation notch 115 against the refrigerator body.

[0055] Understandably, to ensure stable installation of the mounting base 11 and the refrigerator body, multiple fasteners are often provided. In this embodiment, the mounting base 11 and the refrigerator body are connected by two fasteners, namely the first fastener 116 and the second fastener 117. The second fastener 117 is connected to the edge of the end of the mounting base 11 away from the first swing arm structure 135. The first fastener 116 is located between the second fastener 117 and the first swing arm structure 135. Therefore, the pre-installation hole 113 is used for the first fastener 116 to pass through. The first fastener 116 presses the edge of the installation hole 114 against the refrigerator body. The edge of the end of the mounting base 11 away from the first swing arm structure 135 is provided with an installation notch 115. The second fastener 117 is inserted into the installation notch 115 by the notch portion 1151 and presses the edge of the installation notch 115 against the refrigerator body. In order to facilitate the insertion of the second fastener 117 into the installation notch 115, the notch portion 1151 can be configured to be gradually widening. This configuration of the mounting notch 115 and pre-mounting hole 113, compared to the configuration of two pre-mounting holes 113, eliminates the need to consider the relative positional relationship of the two pre-mounting holes 113, thereby further facilitating the pre-installation of multiple fasteners and the fixing base 11. In other embodiments, the number of fasteners may be three or more, or the number of fasteners may be one.

[0056] This utility model also proposes a refrigerator, which includes a hinge structure 1. The specific structure of the hinge structure 1 is as described in the above embodiments. Since this refrigerator adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0057] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A hinge structure, characterized by, The hinge structure comprises: a fixed seat mounted on a refrigerator body by a fastener; a mounting seat for mounting on a refrigerator door body; and a connecting rod assembly comprising a first swing rod structure and a second swing rod structure rotatably connected, one end of the first swing rod structure rotatably connected to the fixed seat, the length of the first swing rod structure being greater than the length of the second swing rod structure, and the maximum opening angle of the first swing rod structure relative to the fixed seat being greater than or equal to a preset angle to avoid installation of the fastener, one end of the second swing rod structure rotatably connected to the refrigerator door body. The preset angle is greater than or equal to 90°.

2. The hinge structure of claim 1, wherein The first swing rod structure comprises a first main swing rod, and the second swing rod structure comprises a second main swing rod and a second auxiliary swing rod, one end of the second main swing rod rotatably connected to the mounting seat and the other end rotatably connected to the fixed seat, one end of the second auxiliary swing rod rotatably connected to the mounting seat and the other end rotatably connected to the first main swing rod, the second auxiliary swing rod arranged on one side of the second main swing rod close to the fixed seat, and one end of the first main swing rod rotatably connected to the fixed seat, the length of the first main swing rod being greater than the length of the second main swing rod, and the maximum opening angle of the first main swing rod relative to the fixed seat being greater than or equal to a preset angle.

3. The hinge structure of claim 1, wherein The length of the first main swing rod is greater than or equal to twice the length of the second main swing rod.

4. The hinge structure of claim 3, wherein The first swing rod structure further comprises a first auxiliary swing rod, one end of the first auxiliary swing rod rotatably connected to the fixed seat and the other end rotatably connected to the second auxiliary swing rod, and the first auxiliary swing rod arranged between the first main swing rod and the mounting seat.

5. The hinge structure of claim 3, wherein The fixed seat comprises a first fixed part and a second fixed part rotatably connected, the first fixed part rotatably connected to the refrigerator body by the fastener, and one end of the first swing rod structure arranged on the second fixed part.

6. The hinge structure of claim 1, wherein The connecting corner close to the first fixed part and the second fixed part is arranged. The maximum opening angle of the first swing rod structure relative to the fixed seat is less than or equal to 115° and greater than or equal to 110°.

7. The hinge structure of claim 1, wherein The fixed seat is provided with a pre-installation hole and a mounting hole in communication, the pre-installation hole arranged on one side of the mounting hole away from the first swing rod structure, and the inner diameter of the pre-installation hole greater than the inner diameter of the mounting hole.

8. The hinge structure according to any one of claims 1 to 7, wherein The pre-installation hole is used for the fastener to pass through, and the fastener presses the edge of the mounting hole against the refrigerator body. One end of the fixed seat away from the first swing rod structure is provided with a mounting notch, the notch part of the mounting notch arranged away from the first swing rod structure, and the fastener clamped into the mounting notch by the notch part and the edge of the mounting notch pressed against the refrigerator body.

9. The hinge structure according to any one of claims 1 to 7, wherein The hinge structure comprises any one of claims 1 to 9.

10. A refrigerator characterized by comprising: ​

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