Hinge structure and refrigerator

Abstract

The utility model discloses a hinge structure and a refrigerator, and relates to the technical field of hinges, the hinge structure comprises a fixed seat, a mounting seat, a connecting rod assembly and a stop structure, the fixed seat is used for being mounted on a refrigerator main body; 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 first swing rod structure is connected with the fixing base, and the second swing rod structure is connected with the refrigerator door body; the stop structure is at least arranged on the first swing rod structure and at least can limit the rotating angle of the second swing rod structure so as to limit the opening and closing angle of the refrigerator door body. According to the technical scheme provided by the utility model, the possibility of collision between the refrigerator door body and the wall body can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, especially hinge structure and refrigerator. BACKGROUND

[0002] The refrigerator main body and the refrigerator door body are installed together through the hinge structure to ensure that the refrigerator door body is normally opened and closed. The opening angle of the refrigerator door body is usually greater than 90 degrees. However, the maximum opening angle of the refrigerator is limited in some refrigerator placement scenarios, such as when the refrigerator is placed against a corner, which causes the refrigerator door body to easily collide with the wall. SUMMARY

[0003] The main purpose of the utility model is to provide a hinge structure and a refrigerator, which aims to reduce the possibility of collision between the refrigerator door body and the wall.

[0004] To achieve the above-mentioned purpose, the hinge structure provided by the utility model comprises:

[0005] A fixed seat is used to install the refrigerator main body.

[0006] An installation seat is used to install the refrigerator door body.

[0007] A connecting rod assembly comprises a first swing rod structure and a second swing rod structure connected in rotation, the first swing rod structure is connected to the fixed seat, and the second swing rod structure is connected to the refrigerator door body.

[0008] A stop structure is provided at least on the first swing rod structure and can at least limit the rotation angle of the second swing rod structure to limit the opening and closing angle of the refrigerator door body.

[0009] In an embodiment, the first swing rod structure comprises a first main swing rod and a first auxiliary swing rod, 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 is connected to the installation seat, the other end is connected to the end of the first swing rod structure, one end of the second auxiliary swing rod is connected to the installation seat, the other end is connected to the first swing rod structure, and the second auxiliary swing rod is arranged on the side of the second main swing rod close to the fixed seat, one end of the first main swing rod away from the second main swing rod is connected to the fixed seat, one end of the first auxiliary swing rod is connected to the fixed seat, and the other end is connected to the second auxiliary swing rod.

[0010] The stop structure comprises a first stop piece arranged on the first swing rod structure, and the first stop piece is located on the side of the second auxiliary swing rod facing the second main swing rod, which can limit the rotation angle of the second auxiliary swing rod.

[0011] In an embodiment, the linkage assembly further comprises a resilient assisting structure, one end of the resilient assisting structure being connected to the mounting base, and the other end being connected to the second primary swing rod and the first swing rod structure.

[0012] In an embodiment, the second secondary swing rod is provided with a first clamping notch on one side thereof facing the first stopper, and the first stopper is capable of being clamped into the first clamping notch.

[0013] In an embodiment, the first stopper is configured as a first stopper pin; and / or,

[0014] The first stopper penetrates through the first swing rod structure.

[0015] In an embodiment, the stopper structure further comprises a second stopper provided on the fixing base, and the second stopper is capable of limiting the rotation angle of the first swing rod structure.

[0016] In an embodiment, the second stopper is provided on one side of the first primary swing rod to limit the rotation angle of the first primary swing rod.

[0017] In an embodiment, the first primary swing rod comprises a swing rod body and a limiting protrusion protruding from one end of the swing rod body facing the fixing base.

[0018] The second stopper is capable of limiting the rotation of the limiting protrusion.

[0019] In an embodiment, the limiting protrusion is provided with a second clamping notch on one side thereof facing the second stopper, and the second stopper is capable of being clamped into the second clamping notch.

[0020] In an embodiment, the second stopper is configured as a second stopper pin; and / or,

[0021] The second stopper penetrates through the fixing base.

[0022] The utility model further provides a refrigerator comprising the hinge structure as described above.

[0023] The technical solution of this utility model involves setting 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, thereby enabling the refrigerator door to be installed on the refrigerator body and allowing the refrigerator door to open and close. A stop structure is provided at least on the first swing arm structure, thereby limiting the rotation angle of the second swing arm structure. When the refrigerator door rotates to a preset angle, the stop structure interacts with the second swing arm structure, causing the second swing arm structure to remain stationary relative to the first swing arm structure, and further limiting the first swing arm structure to remain stationary, thus preventing the refrigerator door from opening further. This ensures that the refrigerator body can only open to a preset angle (usually less than or equal to 90°), stopping the refrigerator door before it collides with the wall, reducing the possibility of a collision between the refrigerator door and the wall. Attached Figure Description

[0024] 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.

[0025] Figure 1 A schematic diagram of an angle structure of an embodiment of the hinge structure provided by this utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of the hinge structure when closed;

[0027] Figure 3 for Figure 2 Cross-sectional view of the central hinge structure;

[0028] Figure 4 for Figure 1 A structural diagram of the hinge structure from another angle;

[0029] Figure 5 for Figure 4 Cross-sectional view of the central hinge structure;

[0030] Figure 6 for Figure 1 A schematic diagram of the central hinge structure when it is opened to a preset angle;

[0031] Figure 7 for Figure 6 Cross-sectional view of the central hinge structure;

[0032] Figure 8 For Figure 4 Simplified diagram of the hinge of the middle connecting rod assembly, the fixed seat and the mounting seat.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, hinge structure; 11, fixed seat; 12, mounting seat; 13, connecting rod assembly; 14, first swing rod structure; 141, first main swing rod; 142, first auxiliary swing rod; 143, swing rod main body; 144, limiting protrusion; 145, second clamping notch; 15, second swing rod structure; 151, second main swing rod; 152, second auxiliary swing rod; 153, first clamping notch; 16, stop structure; 161, first stop; 162, second stop; 17, elastic power assisting structure.

[0035] The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0037] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0038] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0039] The utility model provides a hinge structure 1 for refrigerator and other household appliances.

[0040] Please refer to Figures 1 to 7 In an embodiment of the utility model, the hinge structure 1 includes:

[0041] The fixed seat 11 is used to install the refrigerator main body;

[0042] The mounting seat 12 is used to install the refrigerator door body;

[0043] The connecting rod assembly 13 includes the rotationally connected first swing lever structure 14 and second swing lever structure 15, the first swing lever structure 14 is connected with the fixed seat 11, and the second swing lever structure 15 is connected with the refrigerator door body; and

[0044] The stop structure 16 is at least provided in the first swing lever structure 14, and at least can limit the rotation angle of the second swing lever structure 15, to limit the opening angle of the refrigerator door body.

[0045] Specifically, the fixed seat 11 is installed on the refrigerator main body, the mounting seat 12 is installed on the refrigerator door body, one end of the connecting rod assembly 13 is drivingly connected with the fixed seat 11, and the other end is drivingly connected with the mounting seat 12, so that the installation of the refrigerator door body and the refrigerator main body is realized, and the refrigerator door body can be opened and closed. And the connecting rod assembly 13 includes the first swing lever structure 14 and the second swing lever structure 15, one end of the first swing lever structure 14 is drivingly connected with the fixed seat 11, the other end is drivingly connected with the second swing lever structure 15, and one end of the second swing lever structure 15 away from the first swing lever structure 14 is drivingly connected with the mounting seat 12.

[0046] In the prior art, the opening angle of the refrigerator body is generally large (greater than 90°), thereby facilitating the user to take out the articles. However, in some placement scenarios of the refrigerator, the maximum opening angle of the refrigerator is often limited, such as the refrigerator is placed close to a corner of a wall, so that the refrigerator door body is prone to collide with the wall. Therefore, the stop structure 16 is arranged, which can ensure that the refrigerator body can only be opened to a preset angle (the preset angle is usually less than or equal to 90°), thereby stopping before the refrigerator door body collides with the wall, and reducing the possibility of collision between the refrigerator door body and the wall.

[0047] The stop structure 16 is arranged at least on the first swing rod structure 14, thereby being capable of at least limiting the rotation angle of the second swing rod structure 15. When the refrigerator door body is rotated to the preset angle, the stop structure 16 acts on the second swing rod structure 15, thereby causing the second swing rod structure 15 to be stationary relative to the first swing rod structure 14, and being capable of further limiting the first swing rod structure 14 to be stationary, so that the refrigerator door body cannot be continuously opened.

[0048] The stop structure 16 is a detachable structure, that is, the user can detach the stop structure 16 without the aid of tools or with the aid of simple tools, thereby facilitating the user to select the opening angle of the refrigerator door body according to actual needs.

[0049] Optionally, the fixing seat 11 is fastened and installed on the refrigerator body by means of fastening members such as screws and bolts, thereby facilitating the installation of the hinge structure 1 and the refrigerator body, and ensuring the installation stability. The mounting seat 12 is fastened and installed on the refrigerator door body by means of fastening members such as screws and bolts, thereby facilitating the installation of the hinge structure 1 and the refrigerator door body, and ensuring the installation stability.

[0050] Referring to Figures 1 to 8 In the embodiment of the utility model, the first swing rod structure 14 includes a first main swing rod 141 and a first auxiliary swing rod 142, the second swing rod structure 15 includes a second main swing rod 151 and a second auxiliary swing rod 152, one end of the second main swing rod 151 is connected to the mounting seat 12, the other end is connected to the end of the first swing rod structure 14, one end of the second auxiliary swing rod 152 is connected to the mounting seat 12, the other end is connected to the first swing rod structure 14, and the second auxiliary swing rod 152 is arranged on the side of the second main swing rod 151 close to the fixing seat 11, one end of the first main swing rod 141 away from the second main swing rod 151 is connected to the fixing seat 11, one end of the first auxiliary swing rod 142 is connected to the fixing seat 11, and the other end is connected to the second auxiliary swing rod 152.

[0051] The stop structure 16 includes a first stop piece 161 arranged on the first swing rod structure 14, and the first stop piece 161 is located on the side of the second auxiliary swing rod 152 facing the second main swing rod 151, thereby being capable of limiting the rotation angle of the second auxiliary swing rod 152.

[0052] Specifically, the first main swing rod 141 and the second main swing rod 151 are used as the main structure of the linkage assembly 13, and one end of the first main swing rod 141 is rotatably connected to the fixed seat 11, and the other end is rotatably connected to the second main swing rod 151, and one end of the second main swing rod 151 away from the first main swing rod 141 is rotatably connected to the mounting seat 12, and the first auxiliary swing rod 142 and the second auxiliary swing rod 152 are used as auxiliary structures to limit the relative swing of the first main swing rod 141 and the second main swing rod 151 and assist the movement of the first main swing rod 141 and the second main swing rod 151. One end of the second auxiliary swing rod 152 is rotatably connected to the mounting seat 12, and the other end is rotatably connected to the first swing rod structure 14, and the second auxiliary swing rod 152 is arranged on the side of the second main swing rod 151 close to the fixed seat 11, and one end of the first auxiliary swing rod 142 is rotatably connected to the fixed seat 11, and the other end is rotatably connected to the second auxiliary swing rod 152, so that the first main swing rod 141, the first auxiliary swing rod 142, the second main swing rod 151 and the second auxiliary swing rod 152 jointly control the rotation angle of the refrigerator door body.

[0053] The stop structure 16 includes a first stop piece 161 arranged on the first swing rod structure 14, and the first stop piece 161 can limit the rotation angle of the second auxiliary swing rod 152. Referring to Figure 8 The linkage assembly 13 is simplified as simple lines, and seven hinge points a, b, c, d, e, f and g are obtained according to the hinge relationship of the linkage assembly 13 itself and the fixed seat 11 and the mounting seat 12. Since the fixed seat 11 is fixedly installed on the refrigerator main body, the positions of the hinge point a and the hinge point b do not change, and in the movement process of the linkage assembly 13, the positions of the hinge points c, d, e, f and g constantly change, but the relative distances of the seven hinge points remain unchanged; the hinge points a, b, c and d form a first quadrilateral, and the relative rotation of the first main swing rod 141, the first auxiliary swing rod 142 and the second auxiliary swing rod 152 can cause the first quadrilateral to deform; similarly, the hinge points d, e, f and g form a second quadrilateral, and the relative rotation of the second main swing rod 151, the first main swing rod 141, the mounting seat 12 and the second auxiliary swing rod 152 causes the second quadrilateral to deform, and the first quadrilateral and the second quadrilateral share the hinge point d, that is, in the movement process of the linkage assembly 13, the first quadrilateral and the second quadrilateral constantly deform to realize the opening and closing of the refrigerator door body, so as long as the first quadrilateral and the second quadrilateral do not deform, the linkage assembly 13 can be fixed.

[0054] The first stopper 161 is located between the hinge point c and the hinge point d, and can limit the rotation of the second secondary swing lever 152. When the refrigerator body is rotated to a preset angle, the first stopper 161 limits the second secondary swing lever 152 from continuing to rotate relative to the first primary swing lever 141, that is, the first primary swing lever 141 and the second secondary swing lever 152 are relatively stationary, that is, two adjacent sides of the second quadrilateral are fixed, so as to fix the second quadrilateral, limit the movement of the second primary swing lever 151 and the mounting seat 12; correspondingly, when the second secondary swing lever 152 is stationary and the fixing seat 11 is fixed, the hinge point a and the hinge point c are relatively fixed, that is, the distance between two opposite corners of the first quadrilateral is fixed, so as to keep the first quadrilateral unchanged, that is, the movement of the first primary swing lever 141 and the first secondary swing lever 142 is limited, that is, the entire linkage assembly 13 is stationary, and the refrigerator door body cannot continue to be opened. The first primary swing lever 141 has sufficient mounting space between the second primary swing lever 151 and the second secondary swing lever 152 for mounting the first stopper 161.

[0055] In another embodiment, the first stopper 161 can also be arranged on the side of the second primary swing lever 151 away from the second secondary swing lever 152. At this time, when the refrigerator body is rotated to a preset angle, the first stopper 161 limits the movement of the second primary swing lever 151 relative to the first primary swing lever 141, so that the first primary swing lever 141 and the second primary swing lever 151 are relatively stationary, that is, two adjacent sides of the second quadrilateral are fixed, so as to fix the second quadrilateral, and further limit the movement of the second secondary swing lever 152 and the mounting seat 12. Because the second secondary swing lever 152 is stationary and the fixing seat 11 is fixed, the positions of the hinge point a and the hinge point c are relatively fixed, that is, the distance between two opposite corners of the quadrilateral is fixed, so as to keep the first quadrilateral unchanged, that is, the movement of the first primary swing lever 141 and the first secondary swing lever 142 is limited, and the entire linkage assembly 13 is stationary, so that the refrigerator door body cannot continue to be opened.

[0056] When the first stopper 161 is located on the side of the second secondary swing lever 152 facing the second primary swing lever 151, in an embodiment, the linkage assembly 13 further comprises a spring assisting structure 17, one end of the spring assisting structure 17 being connected to the mounting base 12, and the other end being connected to the second primary swing lever 151 and the first swing lever structure 14. Specifically, one end of the spring assisting structure 17 is connected to the mounting base 12, and is usually located on the side of the second primary swing lever 151 facing the second secondary swing lever 152, and the other end is connected to the second primary swing lever 151 and the first swing lever structure 14. The spring assisting structure 17 is used to reset and release elastic potential energy when the refrigerator door body is about to be closed, so as to provide driving force for the movement of the second primary swing lever 151, i.e., for the movement of the second swing lever structure 15, so as to provide driving force for the closing of the refrigerator door body, and ensure that the refrigerator door body is closed in place. If the first stopper 161 is arranged on the second primary swing lever 151, i.e., the spring assisting structure 17 and the first stopper 161 jointly act on the same swing lever, the first stopper 161 will cause a certain degree of fluctuation under the action of the spring assisting structure 17, so that the refrigerator door body cannot be stably stopped at the preset angle. Therefore, the first stopper 161 and the spring assisting structure 17 are arranged on different swing levers, which helps to ensure the stable limiting of the hinge structure.

[0057] In other embodiments, the first stopper 161 is arranged on the side of the second primary swing lever 151 away from the second secondary swing lever 152, for limiting the movement of the second primary swing lever 151, and the spring assisting structure 17 is arranged corresponding to the second secondary swing lever 152, so as to provide driving force for the movement of the second secondary swing lever 152 when the refrigerator door body is about to be closed.

[0058] When the first stopper 161 is located on the side of the second secondary swing lever 152 facing the second primary swing lever 151, in an embodiment, a first clamping notch 153 is arranged on the side of the second secondary swing lever 152 facing the first stopper 161, and the first stopper 161 can be clamped into the first clamping notch 153. When the refrigerator door body moves to the preset angle, the first stopper 161 is just clamped into the first clamping notch 153, so as to ensure that the second secondary swing lever 152 and the first stopper 161 can be relatively stably stationary, thereby further improving the reliability of the structure.

[0059] Preferably, the first stopper 161 is configured as a first stopper pin, and when it is necessary to limit the rotation angle of the refrigerator door body, the user only needs to insert the first stopper pin into the preset hole; and when it is not necessary to limit the rotation angle of the refrigerator door body, the user only needs to pull out the first stopper pin, thereby facilitating the user to disassemble.

[0060] Further preferably, the first stopper 161 penetrates the first swing lever structure 14, thereby ensuring stable installation of the first stopper 161 and reducing the possibility of swinging of the first stopper 161 relative to the first swing lever structure 14, thereby ensuring the reliability of the structure.

[0061] Again referring to Figures 1 to 8 In the embodiments of the present application, in one implementation, the stop structure 16 further comprises a second stopper 162 provided on the fixed seat 11, and the second stopper 162 can limit the rotation angle of the first swing lever structure 14. Specifically, the second stopper 162 further limits the swing angle of the first swing lever structure 14 relative to the fixed seat 11. When the refrigerator door body moves to the preset angle, the second stopper 162 further limits the swing angle of the first swing lever structure 14 relative to the fixed seat 11, and the first stopper 161 simultaneously limits the swing angle of the second swing lever structure 15 relative to the first swing lever structure 14, thereby simultaneously limiting the rotation angles of different structures. Compared with the scheme of only providing the first stopper 161 or the second stopper 162, the present scheme helps to disperse the impact force of the linkage assembly 13 on the stop structure 16, which not only ensures that the refrigerator door body can be stably stopped at the preset angle, but also improves the service life of the linkage assembly 13.

[0062] Further, the second stopper 162 is provided on one side of the first main swing lever 141 to limit the rotation angle of the first main swing lever 141. Since the first main swing lever 141 is the main structure of the entire linkage assembly 13, its structural strength and movement stability are higher than those of the first auxiliary swing lever 142 to a certain extent. Therefore, compared with limiting the movement of the first auxiliary swing lever 142 by the second stopper 162, the present scheme can further ensure that the refrigerator door body can be stably stopped at the preset angle. Of course, in other embodiments, the second stopper 162 can also be provided on the side of the first auxiliary swing lever 142 away from the first main swing lever 141.

[0063] Optionally, the first main swing rod 141 comprises a swing rod body 143 and a limiting protrusion 144 protruding from one end of the swing rod body 143 towards the fixed base 11; the second stop piece 162 can limit the rotation of the limiting protrusion 144. If the second limiting piece is directly arranged between the first main swing rod 141 and the first auxiliary swing rod 142, i.e., can be located in the movement space of the first auxiliary swing rod 142, the second limiting piece can interfere with the first auxiliary swing rod 142 during the movement of the linkage assembly 13. Therefore, in order to reduce the possibility of interference between the second limiting piece and the first auxiliary swing rod 142, the first main swing rod 141 comprises a swing rod body 143 and a limiting protrusion 144 protruding from one end of the swing rod body 143 towards the fixed base 11, and the first limiting protrusion 144 extends towards the first auxiliary swing rod 142, so that the second stop piece 162 limits the rotation of the limiting protrusion 144 to stop the first main swing rod 141. Also, the second stop piece 162 can be arranged at one end of the first main swing rod 141 close to the fixed base 11, so as to avoid the second stop piece 162 being located in the movement space of the first auxiliary swing rod 142, thereby reducing the possibility of interference between the second limiting piece and the first auxiliary swing rod 142. The limiting protrusion 144 can be integrally formed on the swing rod body 143, so as to facilitate the assembly of the first main swing rod 141 and ensure the stable installation of the limiting protrusion 144. Of course, in other embodiments, the limiting protrusion 144 can be clamped or welded on the swing rod body 143.

[0064] In an embodiment, the limiting protrusion 144 is provided with a second clamping notch 145 on the side facing the second stop piece 162, and the second stop piece 162 can be clamped into the second clamping notch 145. When the refrigerator door body moves to a preset angle, the second stop piece 162 is clamped into the second clamping notch 145, so as to ensure that the first main swing rod 141 and the first stop piece 161 can be relatively stable and stationary, thereby further improving the reliability of the structure.

[0065] Preferably, the second stop piece 162 is configured as a second stop pin, and when it is necessary to limit the rotation angle of the refrigerator door body, the user only needs to insert the second stop pin into a preset hole; when it is not necessary to limit the rotation angle of the refrigerator door body, the user only needs to pull out the second stop pin, thereby facilitating the user to disassemble and install.

[0066] Further preferably, the second stop piece 162 penetrates the fixed base 11, so as to ensure the stable installation of the second stop piece 162 and reduce the possibility of the second stop piece 162 swinging relative to the fixed base 11, thereby ensuring the reliability of the structure.

[0067] The utility model discloses still put forward a kind of refrigerator, the refrigerator includes hinge structure 1, the specific structure of this hinge structure 1 refers to above-mentioned embodiment, since the refrigerator has adopted all technical solutions of above-mentioned all embodiments, therefore at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration.

[0068] The above is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the contents of the drawings, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A hinge structure, characterized by, The hinge structure comprises: a fixed seat configured to be mounted on a refrigerator body; a mounting seat configured to be mounted on a refrigerator door body; a linkage assembly comprising a first swing lever structure and a second swing lever structure connected rotatably, the first swing lever structure being connected to the fixed seat, and the second swing lever structure being connected to the refrigerator door body; and a stop structure provided at least on the first swing lever structure and capable of limiting at least a rotation angle of the second swing lever structure to limit an opening and closing angle of the refrigerator door body. The first swing lever structure comprises a first main swing lever and a first auxiliary swing lever, and the second swing lever structure comprises a second main swing lever and a second auxiliary swing lever, one end of the second main swing lever being connected to the mounting seat and the other end being connected to an end of the first swing lever structure, one end of the second auxiliary swing lever being connected to the mounting seat and the other end being connected to the first swing lever structure, and the second auxiliary swing lever being provided on a side of the second main swing lever close to the fixed seat, one end of the first main swing lever being connected to the fixed seat, and one end of the first auxiliary swing lever being connected to the fixed seat and the other end being connected to the second auxiliary swing lever.

2. The hinge structure of claim 1, wherein The stop structure comprises a first stop piece provided on the first swing lever structure, and the first stop piece is located on a side of the second auxiliary swing lever facing the second main swing lever and capable of limiting a rotation angle of the second auxiliary swing lever. The linkage assembly further comprises an elastic assisting structure, one end of the elastic assisting structure being connected to the mounting seat and the other end being connected to the second main swing lever and the first swing lever structure.

3. The hinge structure of claim 2, wherein A side of the second auxiliary swing lever facing the first stop piece is provided with a first clamping notch, and the first stop piece is capable of being clamped into the first clamping notch.

4. The hinge structure of claim 2, wherein The first stop piece is configured as a first stop pin; and / or 5. The hinge structure of claim 2, wherein The first stop piece penetrates the first swing lever structure. The stop structure further comprises a second stop piece provided on the fixed seat, and the second stop piece is capable of limiting a rotation angle of the first swing lever structure.

6. The hinge structure of claim 2, wherein The second stop piece is provided on a side of the first main swing lever facing the first auxiliary swing lever to limit a rotation angle of the first main swing lever.

7. The hinge structure of claim 6, wherein The first main swing lever comprises a swing lever body and a limiting protrusion provided on one end of the swing lever body facing the fixed seat; 8. The hinge structure of claim 7, wherein The second stop piece is capable of limiting a rotation of the limiting protrusion. A side of the limiting protrusion facing the second stop piece is provided with a second clamping notch, and the second stop piece is capable of being clamped into the second clamping notch.

9. The hinge structure of claim 8, wherein The second stop piece is configured as a second stop pin; and / or 10. The hinge structure of claim 6, wherein The second stop piece penetrates the fixed seat. The hinge structure comprises any one of the hinge structures according to claims 1 to 10.

11. A refrigerator characterized by comprising: ​

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