Hinge mechanism and refrigeration equipment

Abstract

The utility model provides a hinge mechanism and refrigeration equipment, the hinge mechanism is used for the refrigeration equipment, the refrigeration equipment comprises a box body and a door body, and the box body is provided with a first side plate and a second side plate which are oppositely arranged in the direction from the top to the bottom of the refrigeration equipment; the hinge mechanism comprises a first hinge assembly and a second hinge assembly, the first hinge assembly comprises a first hinge body and a second hinge body rotationally connected with the first hinge body, one end of the first hinge body is rotationally arranged on the first side plate, the other end of the first hinge body is rotationally arranged on the door body, one end of the second hinge body is rotationally arranged on the first side plate, and the other end of the second hinge body is rotationally arranged on the door body; the second hinge assembly comprises a first connecting rod and a second connecting rod rotationally connected with the first connecting rod, the end, away from the second connecting rod, of the first connecting rod is rotationally arranged on one of the second side plate and the door body, and the end, away from the first connecting rod, of the second connecting rod is rotationally arranged on the other one of the second side plate and the door body. The assembling difficulty is reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a hinge mechanism and refrigeration equipment. Background Art

[0002] In the prior art, the hinge mechanism of the refrigeration equipment has a complex structure and a large number of parts, resulting in low assembly efficiency during the assembly of the refrigeration equipment. Therefore, how to provide a hinge mechanism and refrigeration equipment with high assembly efficiency is a technical problem that needs to be urgently solved in the field. Utility Model Content

[0003] In view of the above problems, the present application provides a hinge mechanism and a refrigeration device to solve the technical problem of low assembly efficiency of refrigeration devices in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted in this application is as follows:

[0005] In the first aspect, the present application provides a refrigeration device for refrigeration equipment, the refrigeration equipment comprising a box body and a door body, the box body having a first side panel and a second side panel relatively arranged in the direction from the top to the bottom of the refrigeration equipment; the hinge mechanism comprising: a first hinge assembly, comprising a first hinge body and a second hinge body rotatably connected to the first hinge body, one end of the first hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body, one end of the second hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body; the second hinge assembly, comprising a first connecting rod and a second connecting rod rotatably connected to the first connecting rod, an end of the first connecting rod away from the second connecting rod is used to be rotatably set on one of the second side panel and the door body, and an end of the second connecting rod away from the first connecting rod is used to be rotatably set on the other of the second side panel and the door body.

[0006] Wherein, the first hinge assembly and the second hinge assembly can rotate to open or close the door body relative to the box body, and the door body can be opened to a maximum angle relative to the box body, and the maximum angle is greater than or equal to 180°.

[0007] Among them, the first hinge body includes a third link and a fourth link rotatably connected to the third link, one end of the third link away from the fourth link is rotatably set on the first side panel, and one end of the fourth link away from the third link is rotatably set on the door body; the second hinge body includes a fifth link and a sixth link rotatably connected to the fifth link, one end of the fifth link away from the sixth link is rotatably set on the first side panel, one end of the sixth link away from the fifth link is rotatably set on the door body, and the fifth link is also rotatably connected to the fourth link.

[0008] Among them, the orthographic projection of the fourth connecting rod on the plane where the first side plate is located at least partially falls on the fifth connecting rod, and the orthographic projection of the fourth connecting rod on the fifth connecting rod corresponds to the position of the fourth connecting rod having a first axial hole, and the fifth connecting rod has a second axial hole adapted to the first axial hole; the first hinge assembly also includes a first rotating shaft, and the first rotating shaft is used to cooperate with the first axial hole and the second axial hole to make the fourth connecting rod rotatably connected with the fifth connecting rod.

[0009] Among them, the fourth connecting rod includes a first rod portion, an oblique rod portion and a second rod portion connected in sequence, the oblique rod portion is inclined relative to the first rod portion and the second rod portion, one end of the first rod portion away from the oblique rod portion is rotatably connected to the third connecting rod, and one end of the second rod portion away from the oblique rod portion is rotatably set on the door body, and the first axial hole is located at the connection between the first rod portion and the oblique rod portion; the fifth connecting rod includes a third rod portion, a connecting portion and a fourth rod portion connected in sequence, the connecting portion extends from the third rod portion in a direction away from the first side panel, one end of the third rod portion away from the connecting portion is rotatably set on the first side panel, one end of the fourth rod portion away from the connecting portion is rotatably connected to the sixth connecting rod, and the second axial hole is located at the third rod portion.

[0010] The sixth connecting rod comprises a fifth rod portion, an avoidance portion and a sixth rod portion which are connected in sequence, the fifth rod portion and the avoidance portion as well as the avoidance portion and the sixth rod portion are smoothly arranged, and the avoidance portion is used to avoid the fourth connecting rod.

[0011] Wherein, the second hinge assembly also includes: a hinge seat, which is arranged on one of the second side panel and the door body, and the end of the first connecting rod away from the second connecting rod is rotatably arranged on the hinge seat; a self-locking member, which is arranged on the other of the second side panel and the door body, and is used to engage with the hinge seat to lock the door body when the door body is in a closed state relative to the box body, and the end of the second connecting rod away from the first connecting rod is rotatably arranged on the self-locking member.

[0012] Wherein, the hinge seat includes a clamping portion, the clamping portion is formed with a clamping block and a first clamping groove which are arranged adjacent to each other, and the first clamping groove and the clamping block are used to engage with the self-locking member to lock the door body.

[0013] Wherein, the self-locking part includes a locking portion, the locking portion includes a bending section and a locking section connected to the bending section, the bending section and the locking section form a second slot, and when the door body is in a closed state relative to the box body, the locking section is engaged with the first slot, and the second slot is engaged with the locking block.

[0014] In the second aspect, the present application provides a refrigeration device, comprising: a box body, having a first side panel and a second side panel relatively arranged in the direction from the top to the bottom of the refrigeration device; a door body; a hinge mechanism as described above; wherein, one end of the first hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body, one end of the second hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body; an end of the first connecting rod away from the second connecting rod is used to be rotatably set on one of the second side panel and the door body, and an end of the second connecting rod away from the first connecting rod is used to be rotatably set on the other of the second side panel and the door body.

[0015] Among them, the first side panel has a top surface, and the top surface is located on the side of the first side panel facing away from the second side panel. The box body has a door frame on the side facing the door body, and the door frame includes a first frame bar, and the first frame bar is the end surface of the second side panel facing the door body; the door body has a first end plate and a second end plate arranged opposite to each other, the first end plate is arranged on the same side as the first side panel, and the second end plate is arranged on the same side as the second side panel; the first hinge assembly is connected between the top surface and the first end plate, and the second hinge assembly is connected between the first frame bar and the second end plate.

[0016] Different from the prior art, the beneficial effects of the embodiments of the present application are as follows: the present application provides a hinge mechanism and a refrigeration device, the hinge mechanism is used for the refrigeration device, the refrigeration device includes a box body and a door body, the box body has a first side panel and a second side panel relatively arranged in the direction from the top to the bottom of the refrigeration device, the hinge mechanism includes a first hinge assembly and a second hinge assembly, the first hinge assembly includes a first hinge body and a second hinge body rotatably connected to the first hinge body, one end of the first hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body, one end of the second hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body; the second hinge assembly includes a first connecting rod and a second connecting rod rotatably connected to the first connecting rod, an end of the first connecting rod away from the second connecting rod is used to be rotatably set on one of the second side panel and the door body, and an end of the second connecting rod away from the first connecting rod is used to be rotatably set on the other of the second side panel and the door body. The first hinge assembly in the embodiment of the present application is used to connect between the first side panel of the box body and the door body, and the second hinge assembly is used to connect between the second side panel of the box body and the door body. The first hinge assembly and the second hinge assembly have a simple structure, which not only reduces the types and quantities of parts during the assembly process, but also reduces the difficulty of assembly, saves working hours, and improves assembly efficiency. In addition, the first hinge assembly and the second hinge assembly are small in size and will not occupy too much space in the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1 It is a structural schematic diagram of an implementation mode of the refrigeration equipment provided by the present application;

[0019] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0020] Figure 3 yes Figure 1 Enlarged view of middle part B;

[0021] Figure 4 is a top view of an implementation of the refrigeration device provided by the present application;

[0022] Figure 5 yes Figure 4 Enlarged view of middle C;

[0023] Figure 6 is a top view of another embodiment of the refrigeration device provided by the present application;

[0024] Figure 7 yes Figure 6 Enlarged view of the middle D part;

[0025] Figure 8 is a schematic diagram of the exploded structure of the first hinge assembly of the hinge mechanism provided in the present application;

[0026] Fig. 9 is a bottom view of an embodiment of the refrigeration device provided by the present application;

[0027] Fig.10 yes Fig. 9 Enlarged view of middle E part;

[0028] Fig.11 is a structural schematic diagram of an implementation mode of the second hinge assembly of the hinge mechanism provided in the present application;

[0029] Fig.12 is a schematic diagram of the exploded structure of the second hinge assembly of the hinge mechanism provided by the present application;

[0030] Fig.13 It is a structural schematic diagram of the self-locking member of the second hinge assembly of the hinge mechanism provided in this application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] See also Figures 1 to 5 , Figure 1 It is a structural schematic diagram of an implementation mode of the refrigeration equipment provided by the present application; Figure 2 yes Figure 1 Enlarged view of part A in the middle; Figure 3 yes Figure 1 Enlarged view of middle part B; Figure 4 is a top view of an implementation of the refrigeration device provided by the present application; Figure 5 yes Figure 4 Enlarged view of the middle C part. The present application provides a hinge mechanism 500, which is used for a refrigeration device 1000. The refrigeration device 1000 can be a built-in refrigerator, a cross-door refrigerator or a French refrigerator, but is not limited thereto. The refrigeration device 1000 includes a box body 100 and a door body 200. The box body 100 has a first side plate 111 and a second side plate 112 that are relatively arranged in the direction from the top to the bottom of the refrigeration device 1000. The hinge mechanism 500 includes a first hinge assembly 300 and a second hinge assembly 400. The door body 200 is rotatably arranged on the box body 100 through the first hinge assembly 300 and the second hinge assembly 400. The first hinge assembly 300 includes a first hinge body 310 and a second hinge body 320 rotatably connected to the first hinge body 310. One end of the first hinge body 310 is rotatably arranged on the first side plate 111, and the other end is rotatably arranged on the door body 200. One end of the second hinge body 320 is rotatably disposed on the first side plate 111, and the other end is rotatably disposed on the door body 200. The second hinge assembly 400 includes a first link 410 and a second link 420 rotatably connected to the first link 410. One end of the first link 410 away from the second link 420 is used to be rotatably disposed on one of the second side plate 112 and the door body 200. One end of the second link 420 away from the first link 410 is used to be rotatably disposed on the other of the second side plate 112 and the door body 200.

[0037] Before assembling the hinge mechanism 500 to the refrigeration device 1000, the first hinge body 310 and the second hinge body 320 of the first hinge assembly 300 may be assembled into a whole in advance, and the first connecting rod 410 and the second connecting rod 420 of the second hinge assembly 400 may be assembled into a whole in advance; during the assembly process of the hinge mechanism 500, one end of the first hinge body 310 may be set on the first side plate 111 of the box body 100, and the other end may be set on the door body 200, and one end of the second hinge body 320 may be set on the box body 100. 00, and the other end is set on the door body 200 to complete the assembly of the first hinge assembly 300; then the end of the first connecting rod 410 away from the second connecting rod 420 is set on one of the second side plate 112 of the box body 100 and the door body 200, and the end of the second connecting rod 420 away from the first connecting rod 410 is set on the other of the second side plate 112 of the box body 100 and the door body 200 to complete the assembly of the second hinge assembly 400, which is convenient to operate, reduces the difficulty of assembly, saves man-hours, and improves assembly efficiency. In addition, the first hinge assembly 300 and the second hinge assembly 400 are small in size and will not occupy too much space of the refrigeration equipment 1000.

[0038] Optionally, one end of the first link 410 away from the second link 420 is rotatably set on the second side plate 112 of the box body 100, and one end of the second link 420 away from the first link 410 is rotatably set on the door body 200. Optionally, one end of the first link 410 away from the second link 420 is rotatably set on the door body 200, and one end of the second link 420 away from the first link 410 is rotatably set on the second side plate 112 of the box body 100. The embodiment of the present application is described by taking the example that one end of the first link 410 away from the second link 420 is rotatably set on the second side plate 112 of the box body 100, and one end of the second link 420 away from the first link 410 is rotatably set on the door body 200.

[0039] The first side plate 111 is located on one side of the box body 100 close to the top of the refrigeration device 1000. The second side plate 112 is located on one side of the box body 100 close to the bottom of the refrigeration device 1000.

[0040] In some embodiments, the first side panel 111 has a top surface 1111, and the top surface 1111 is located on the side of the first side panel 111 facing away from the second side panel 112. The cabinet 100 has a door frame 120 on the side facing the door body 200. The door frame 120 has a first frame strip 121 and a second frame strip 122 that are arranged opposite to each other in the direction from the bottom to the top of the refrigeration device 1000. The first frame strip 121 is located on the side of the door frame 120 close to the bottom of the refrigeration device 1000, and the first frame strip 121 is the end surface of the second side panel 112 facing the door body 200; the second frame strip 122 is located on the side of the door frame 120 close to the top of the refrigeration device 1000, and the second frame strip 122 is the end surface of the first side panel 111 facing the door body 200.

[0041] The door body 200 has a first end plate 201 and a second end plate 202 that are arranged opposite to each other. The first end plate 201 is located on one side of the door body 200 close to the top of the refrigeration device 1000. The plane where the first end plate 201 is located is parallel to the plane where the top surface 1111 is located, and is perpendicular to the plane where the second frame bar 122 is located. The second end plate 202 is located on one side of the door body 200 close to the bottom of the refrigeration device 1000, and the second end plate 202 is located perpendicular to the plane where the first frame bar 121 is located. The first hinge assembly 300 can be connected between the top surface 1111 and the first end plate 201, and the second hinge assembly 400 can be connected between the first frame bar 121 and the second end plate 202. In some embodiments, the first hinge assembly 300 can also be connected between the second frame bar 122 and the first end plate 201. The embodiment of the present application is described by taking the first hinge assembly 300 connected between the top surface 1111 and the first end plate 201 as an example.

[0042] The first hinge assembly 300 and the second hinge assembly 400 are rotated by pulling or pushing the door body 200, so that the door body 200 is opened or closed relative to the cabinet 100. The door body 200 can be opened to a maximum angle relative to the cabinet 100, and the maximum angle is greater than or equal to 180°. By making the maximum angle of the door body 200 relative to the cabinet 100 greater than or equal to 180°, the door body 200 can be prevented from occupying the space around the refrigeration device 1000, thereby improving the user experience.

[0043] In some embodiments, see Figure 6 to Figure 7 , Figure 6 is a top view of another embodiment of the refrigeration device provided by the present application; Figure 7 yes Figure 6Enlarged view of the middle D part. The first hinge body 310 includes a third link 311 and a fourth link 312 rotatably connected to the third link 311. One end of the third link 311 away from the fourth link 312 is rotatably set on the first side plate 111. One end of the fourth link 312 away from the third link 311 is rotatably set on the door body 200. The second hinge body 320 includes a fifth link 321 and a sixth link 322 rotatably connected to the fifth link 321. One end of the fifth link 321 away from the sixth link 322 is rotatably set on the first side plate 111. One end of the sixth link 322 away from the fifth link 321 is rotatably set on the door body 200. The fifth link 321 is also rotatably connected to the fourth link 312.

[0044] When the door body 200 needs to be opened, pulling the door body 200 can drive the third connecting rod 311, the fourth connecting rod 312, the fifth connecting rod 321 and the sixth connecting rod 322 to rotate, so that the door body 200 can be opened relative to the box body 100. The first hinge assembly 300 has a simple structure and is easy to operate.

[0045] In some embodiments, one end of the third link 311 away from the fourth link 312 can be rotatably disposed on the top surface 1111 of the first side plate 111 via a second rotation axis 311a. One end of the fifth link 321 away from the sixth link 322 can be rotatably disposed on the top surface 1111 of the first side plate 111 via a third rotation axis 321b. The second rotation axis 311a and the third rotation axis 321b can be shaft-like components such as rivets or pins, but are not limited thereto.

[0046] The box body 100 further includes a back plate 113, which is the back wall of the box body 100. In some embodiments, the top surface 1111 of the first side plate 111 has a first mounting hole (not shown) and a second mounting hole (not shown). The first mounting hole is located on the side of the second mounting hole away from the door frame 120. The line connecting the center of the first mounting hole and the center of the second mounting hole can be parallel to the arrangement direction of the door frame 120 and the back plate 113, or can be arranged obliquely relative to the arrangement direction of the door frame 120 and the back plate 113. The first mounting hole is used to cooperate with the second rotating shaft 311a to rotate the third connecting rod 311 on the top surface 1111 of the first side plate 111. The second mounting hole is used to cooperate with the third rotating shaft 321b to rotate the fifth connecting rod 321 on the top surface 1111 of the first side plate 111.

[0047] In some embodiments, the end of the fourth link 312 away from the third link 311 can be rotatably disposed on the first end plate 201 of the door body 200 via a fourth rotation axis 312b. The end of the sixth link 322 away from the fifth link 321 can be rotatably disposed on the first end plate 201 of the door body 200 via a fifth rotation axis 322a. The fourth rotation axis 312b and the fifth rotation axis 322a can be shaft-like components such as rivets or pins, but are not limited thereto.

[0048] The door body 200 also includes a third end plate 203 and a fourth end plate 204 that are arranged opposite to each other. The third end plate 203 and the fourth end plate 204 are located between the first end plate 201 and the second end plate 202. The third end plate 203 is located on the side where the door body 200 is connected to the box body 100. The first end plate 201 has a third mounting hole (not shown) and a fourth mounting hole (not shown). The third mounting hole is located on the side of the fourth mounting hole close to the third end plate 203. When the door body 200 is in a closed state relative to the box body 100, the fourth mounting hole is close to the edge of the side of the first end plate 201 away from the box body 100, and the third mounting hole is located on the side of the fourth mounting hole close to the box body 100. The third mounting hole is used to cooperate with the fourth rotating shaft 312b to rotate the fourth connecting rod 312 on the first end plate 201. The fourth mounting hole is used to cooperate with the fifth rotating shaft 322a to rotate the sixth connecting rod 322 on the first end plate 201.

[0049] Please also read Figure 8 , Figure 8 It is a schematic diagram of the exploded structure of the first hinge assembly of the hinge mechanism provided in the present application. The orthographic projection of the fourth connecting rod 312 on the plane where the first side plate 111 is located at least partially falls on the fifth connecting rod 321. The orthographic projection of the fourth connecting rod 312 falling on the fifth connecting rod 321 has a first axial hole 312a corresponding to the position of the fourth connecting rod 312. The fifth connecting rod 321 has a second axial hole 321a corresponding to the position of the orthographic projection of the fourth connecting rod 312 falling on the fifth connecting rod 321, that is, the fifth connecting rod 321 has a second axial hole 321a that is compatible with the first axial hole 312a. The first hinge assembly 300 also includes a first rotating shaft 330, which is used to cooperate with the first axial hole 312a and the second axial hole 321a to rotatably connect the fourth connecting rod 312 and the fifth connecting rod 321.

[0050] In some embodiments, the fourth connecting rod 312 includes a first rod portion 3121, an oblique rod portion 3122, and a second rod portion 3123 connected in sequence. The oblique rod portion 3122 is arranged obliquely relative to the first rod portion 3121 and the second rod portion 3123. One end of the first rod portion 3121 away from the oblique rod portion 3122 is rotatably connected to the third connecting rod 311. One end of the second rod portion 3123 away from the oblique rod portion 3122 is rotatably arranged on the door body 200. The first shaft hole 312a is located at the connection between the first rod portion 3121 and the oblique rod portion 3122.

[0051] The fifth connecting rod 321 includes a third rod portion 3211, a connecting portion 3212, and a fourth rod portion 3213 connected in sequence. The connecting portion 3212 extends from the third rod portion 3211 in a direction away from the first side plate 111. An angle is formed between the plane where the third rod portion 3211 is located and the plane where the connecting portion 3212 is located, and between the plane where the fourth rod portion 3213 is located and the plane where the connecting portion 3212 is located. One end of the third rod portion 3211 away from the connecting portion 3212 is rotatably disposed on the first side plate 111. One end of the fourth rod portion 3213 away from the connecting portion 3212 is rotatably connected to the sixth connecting rod 322, and the second shaft hole 321a is located at the third rod portion 3211.

[0052] It can be understood that the orthographic projection of the fourth connecting rod 312 on the plane where the first side plate 111 is located at least partially falls on the third rod portion 3211 of the fifth connecting rod 321, and the portion of the orthographic projection of the fourth connecting rod 312 on the plane where the first side plate 111 is located that falls on the fifth connecting rod 321 corresponds to the position of the fourth connecting rod 312, which is the connection between the first rod portion 3121 and the oblique rod portion 3122, so that a first axial hole 312a can be opened at the connection between the first rod portion 3121 and the oblique rod portion 3122 of the fourth connecting rod 312, and a second axial hole 321a can be opened in the third rod portion 3211 of the fifth connecting rod 321, and the first rotating shaft 330 cooperates with the first axial hole 312a and the second axial hole 321a to make the fourth connecting rod 312 and the fifth connecting rod 321 rotatably connected, thereby improving the reliability and stability of the structure of the first hinge assembly 300.

[0053] The sixth connecting rod 322 includes a fifth rod portion 3221, an avoidance portion 3222, and a sixth rod portion 3223 connected in sequence. One end of the fifth rod portion 3221 away from the avoidance portion 3222 is rotatably connected to the fifth connecting rod 321. One end of the sixth connecting rod portion 3223 away from the avoidance portion 3222 is rotatably arranged on the first end plate 201 of the door body 200. The fifth rod portion 3221 and the avoidance portion 3222 and the avoidance portion 3222 and the sixth connecting rod portion 3223 are smoothly arranged. The avoidance portion 3222 is used to avoid the fourth connecting rod 312. It can be understood that the avoidance portion 3222 is used to avoid the fourth connecting rod 312 during the process of the door body 200 opening or closing relative to the box body, so as to avoid the interference between the sixth connecting rod 322 and the fourth connecting rod 312.

[0054] Please also read Figures 9 and 10 , Fig. 9 is a bottom view of an embodiment of the refrigeration device provided by the present application; Fig.10 yes Fig. 9 The enlarged view of the middle E part, meanwhile, continue to refer to Figure 3The second hinge assembly 400 further includes a hinge seat 430 and a self-locking member 440. The hinge seat 430 is disposed on one of the second side plate 112 and the door body 200, and one end of the first link 410 away from the second link 420 is rotatably disposed on the hinge seat 430. The self-locking member 440 is disposed on the other of the second side plate 112 and the door body 200, and is used to engage with the hinge seat 430 to lock the door body 200 when the door body 200 is in a closed state relative to the box body 100. One end of the second link 420 away from the first link 410 is rotatably disposed on the self-locking member 440.

[0055] Optionally, the hinge seat 430 is disposed on the second side plate 112, and the self-locking member 440 is disposed on the door body 200. Optionally, the hinge seat 430 is disposed on the door body 200, and the self-locking member 440 is disposed on the second side plate 112. The embodiment of the present application is described by taking the hinge seat 430 disposed on the second side plate 112 and the self-locking member 440 disposed on the door body 200 as an example.

[0056] The first connecting rod 410 is rotatably connected to the second connecting rod 420, and the first connecting rod 410 is also rotatably connected to the hinge seat 430, and the second connecting rod 420 is also rotatably connected to the self-locking member 440. When the door body 200 is opened relative to the box body 100, the first connecting rod 410 and the second connecting rod 420 rotate relative to the box body 100. When the door body 200 needs to be opened, the first connecting rod 410 and the second connecting rod 420 can be driven to rotate by pulling the door body 200, so that the door body 200 can be opened relative to the box body 100. The second hinge assembly 400 has a simple structure and is easy to operate. In addition, the setting of the self-locking member 440 can also prevent the door body 200 from automatically opening when it is closed relative to the box body 100.

[0057] The self-locking member 440 is used to engage with the hinge seat 430 when the door body 200 is in a closed state relative to the box body 100, so as to lock the door body 200 and prevent the door body 200 from automatically opening when it is in a closed state relative to the box body 100. When the door body 200 needs to be opened relative to the box body 100, the door body 200 is pulled away from the box body 100 to disengage the self-locking member 440 from the hinge seat 430. In addition, when the door body 200 is closed to a preset angle relative to the box body 100, the self-locking member 440 can provide the door body 200 with a restoring force that automatically drives the door body 200 to close relative to the box body 100. Under the action of the restoring force, the door body 200 can automatically close relative to the box body 100.

[0058] For the convenience of description, in the following description, the first position state of the first link 410 and the second link 420 is defined as the position state of the first link 410 and the second link 420 when the door body 200 is in a closed state relative to the box body 100; the second position state of the first link 410 and the second link 420 is defined as the position state of the first link 410 and the second link 420 when the door body 200 is opened to the maximum extent relative to the box body 100.

[0059] In some embodiments, please refer to Fig.11 , Fig.11 : is a structural schematic diagram of an embodiment of the second hinge assembly of the hinge mechanism provided in the present application. The first connecting rod 410 and the second connecting rod 420 can rotate relatively to a first position state and a second position state. When the first connecting rod 410 and the second connecting rod 420 rotate relatively to the first position state, the door body 200 is in a closed state relative to the box body 100, that is, the angle of the door body 200 relative to the box body 100 is 0°. At this time, the first connecting rod 410 and the second connecting rod 420 are in a folded state, and the first connecting rod 410 and the second connecting rod 420 are at least partially stacked. In the process of the first connecting rod 410 and the second connecting rod 420 rotating relatively from the first position state to the second position state, the first connecting rod 410 and the second connecting rod 420 gradually unfold, and the angle G between the first connecting rod 410 and the second connecting rod 420 gradually increases, and the door body 200 is opened relative to the box body 100. When the first connecting rod 410 and the second connecting rod 420 rotate relative to each other to the second position, the door body 200 opens to a maximum angle relative to the box body 100, and the angle G between the first connecting rod 410 and the second connecting rod 420 reaches a maximum.

[0060] By making the first connecting rod 410 and the second connecting rod 420 rotate relative to each other to the second position, the door body 200 opens to a maximum angle relative to the box body 100, and the maximum angle is greater than or equal to 180°, thereby preventing the door body 200 from occupying the space around the box body 100 and improving the user experience.

[0061] When the first link 410 and the second link 420 rotate relative to each other to the first position, the angle G between the first link 410 and the second link 420 is acute, and the connection between the first link 410 and the second link 420 is spaced apart from the self-locking member 440 to avoid interference between the first link 410 and the second link 420 and the self-locking member 440.

[0062] In some embodiments, when the first link 410 and the second link 420 rotate relative to each other to the first position, the angle G between the first link 410 and the second link 420 is 40°-50°. For example, the angle G between the first link 410 and the second link 420 can be 40°, 41.5°, 42°, 42.5°, 42.75°, 43°, 43.6°, 44°, 44.3°, 44.5°, 44.85°, 45°, 45.5°, 45.6°, 45.8°, 46°, 46.3°, 46.39°, 46.4°. , 46.5°, 46.8°, 47°, 47.35°, 47.88°, 48°, 48.5°, 48.9°, 49°, 49.5°, 50°, etc., or a range consisting of any two of the above values, for example, it can be 40°-42°, 42.75°-44°, 44.5°-45.6°, 45.8°-46.39°, 46.4°-48°, 48.5°-50°, etc., according to actual needs, as long as the angle G between the first connecting rod 410 and the second connecting rod 420 is in the range of 40°-50°.

[0063] When the first link 410 and the second link 420 rotate relative to each other to the second position, the angle G between the first link 410 and the second link 420 is an obtuse angle. In some embodiments, when the first link 410 and the second link 420 rotate relative to each other to the second position, the angle G between the first link 410 and the second link 420 is 95°-105°. For example, the angle G between the first link 410 and the second link 420 can be 95°, 95.5°, 95.8°, 96°, 96.75°, 97°, 97.6°, 97.85°, 98°, 98.53°, 98.8°, 99°, 99.5°, 99.7°, 99.76°, 99.85°, 100°, 100.39°, 100.4°, 100.5°, 100.8°, 101°, 101.35°, 101.88°, 102°, 102.5°, 102.9°, 103°, 103.5°, 103.8°, 104°, 104.5°, 105°, etc., or a range consisting of any two of the above values, for example, it can be 95°-97°, 97.6°-99.7°, 99.76°-100.5°, 101°-103°, 103.5°-105°, etc., according to actual needs, as long as the angle G between the first connecting rod 410 and the second connecting rod 420 is within the range of 95°-105°.

[0064] By making the first connecting rod 410 and the second connecting rod 420 rotate relative to each other to the second position state, the angle G between the first connecting rod 410 and the second connecting rod 420 is in the range of 95°-105°, so that when the door body 200 is opened relative to the box body 100, the door body 200 will not interfere with the box body 100; if the refrigeration device 1000 is an embedded refrigeration device 1000 embedded in the cabinet, when the door body 200 is opened relative to the box body 100, the door body 200 will not interfere with the cabinet.

[0065] The hinge seat 430 includes a locking portion 431. The locking portion 431 is formed with a locking block 4311 and a first locking groove 4312 that are adjacently arranged. The first locking groove 4312 and the locking block 4311 are used to be engaged with the self-locking member 440 to lock the door body 200.

[0066] Please also read Fig.12 , Fig.12 4 is a schematic diagram of the exploded structure of the second hinge assembly of the hinge mechanism provided in the present application. The hinge seat 430 also includes a first mounting portion 432 and a second mounting portion 433. The second mounting portion 433 is connected to one side of the first mounting portion 432. The second mounting portion 433 is used to set the hinge seat 430 on the first frame bar 121.

[0067] In some embodiments, the first mounting portion 432 includes a first side 4321 and a second side 4322 that are arranged opposite to each other. The first side 4321 is a side of the first mounting portion 432 that is close to the box body 100 and is used to connect with the door body 200, and the second side 4322 is a side of the first mounting portion 432 that is away from the box body 100 and is used to connect with the door body 200. The clamping portion 431 is located on the second side 4322 of the first mounting portion 432. The opening of the first clamping groove 4312 of the clamping portion 431 faces away from the first side 4321, and the clamping block 4311 protrudes in a direction away from the first side 4321. The first clamping groove 4312 and the clamping block 4311 are used to engage with the self-locking member 440 to lock the door body 200. The inner wall of the first slot 4312 and the surface of the block 4311 are smoothly rounded, thereby reducing the friction between the first slot 4312 and the self-locking member 440 and between the block 4311 and the self-locking member 440 , and facilitating the cooperation and dissociation of the self-locking member 440 and the locking portion 431 .

[0068] The first mounting portion 432 has a third shaft hole 432a, and the third shaft hole 432a is close to the first side 4321 and the second mounting portion 433. The first connecting rod 410 has a fourth shaft hole 410a matched with the third shaft hole 432a. The third shaft hole 432a and the fourth shaft hole 410a are used to cooperate with shaft components to enable the first connecting rod 410 to be rotatably disposed on the hinge seat 430. The shaft components can be rivets or pins, etc., but are not limited thereto.

[0069] When the first connecting rod 410 and the second connecting rod 420 rotate relative to each other to the first position state, the first connecting rod 410 tilts from the third axial hole 432a toward the second side 4322; during the process of the first connecting rod 410 and the second connecting rod 420 rotating relative to each other from the first position state to the second position state, the first connecting rod 410 rotates around the shaft component connecting the first connecting rod 410 and the first mounting portion 432 in a direction deviating from the second side 4322.

[0070] Please also read Fig.13 , Fig.13 It is a structural schematic diagram of the self-locking member of the second hinge assembly of the hinge mechanism provided in the present application. The self-locking member 440 includes a locking portion 441, a transition portion 443 and a support portion 442 connected in sequence. Among them, the support portion 442 is used to support the door body 200 and the second hinge assembly 400; the transition portion 443 is used to connect the support portion 442 and the locking portion 441; the locking portion 441 is used to engage with the clamping portion 431 of the hinge seat 430 to lock the door body 200 when the door body 200 is in a closed state relative to the box body 100.

[0071] The locking portion 441 includes a bent section 4411 and a locking section 4412 connected to the bent section 4411. The bent section 4411 and the locking section 4412 form a second latching groove 441a. When the door body 200 is in a closed state relative to the box body 100, the locking section 4412 is engaged with the first latching groove 4312, and the second latching groove 441a is engaged with the latch block 4311, so that the door body 200 is locked to the box body 100, so that the door body 200 will not open automatically when it is in a closed state relative to the box body 100.

[0072] In some embodiments, the notch of the second slot 441a is located between the bending section 4411 and the locking section 4412. The bending section 4411 includes a first section 4411a and a second section 4411b. The first section 4411a is connected to the transition portion 443 and extends in a direction away from the transition portion 443. The second section 4411b is connected to one end of the first section 4411a away from the transition portion 443, and the second section 4411b is an arc section protruding in a direction away from the support portion 442. The locking section 4412 is connected to one end of the second section 4411b away from the first section 4411a and is inclined in a direction away from the transition portion 443.

[0073] By forming a first slot 4312 and a block 4311 on the locking portion 431 of the hinge seat 430, and forming a second slot 441a and a locking section 4412 on the locking portion 441 of the self-locking member 440, when the door body 200 is in a closed state relative to the box body 100, that is, when the first connecting rod 410 and the second connecting rod 420 are relatively rotated to the first position state, the locking section 4412 is engaged with the first slot 4312, and the second slot 441a is engaged with the block 4311, so that the door body 200 is locked to the box body 100. At the same time, the connection between the first connecting rod 410 and the second connecting rod 420 is spaced apart from the locking section 4412, so that the second hinge assembly 400 will not interfere with the self-locking member 440. When the door body 200 needs to be opened relative to the box body 100, the door body 200 is pulled away from the box body 100, so that the second slot 441a can be disengaged from the block 4311, and the locking section 4412 can be disengaged from the first slot 4312, thereby disengaging the self-locking member 440 from the hinge seat 430.

[0074] In some embodiments, the support portion 442 is provided with a fixing column 4421. The fixing column 4421 has a through hole 4421a. The self-locking member 440 is used to cooperate with the through hole 4421a through the fixing member to be set on the door body 200. The fixing member can be inserted into the through hole 4421a and the door body 200 from the side of the self-locking member 440 away from the door body 200, so that the self-locking member 440 is fixed to the door body 200. In some embodiments, the fixing member can be a bolt, a screw, a stud or a rivet, but is not limited thereto.

[0075] A fixing column 4421 is formed on the side of the support portion 442 facing the door body 200, the fixing column 4421 has a through hole 4421a, and the self-locking member 440 is matched with the through hole 4421a through a fixing component to be arranged on the door body 200, so that when the self-locking member 440 is fixed to the door body 200, the fixing column 4421 is located between the self-locking member 440 and the door body 200, and there is a gap between the self-locking member 440 and the door body 200, so that the second hinge assembly 400 will not interfere with the self-locking member 440 and the door body 200 during the rotation process.

[0076] In some embodiments, the second connecting rod 420 has an escape opening 420a. The escape opening 420a is used to escape the fixed column 4421 when the door body 200 is closed relative to the box body 100. The escape opening 420a can play an evasive role for the fixed column 4421. When the door body 200 is in a closed state relative to the box body 100, that is, when the first connecting rod 410 and the second connecting rod 420 are relatively rotated to the first position state, the fixed column 4421 is accommodated in the escape opening 420a.

[0077] By forming an avoidance opening 420a in the second connecting rod 420, when the first connecting rod 410 and the second connecting rod 420 rotate relative to each other to the first position, the fixed column 4421 can be received in the avoidance opening 420a, thereby preventing the fixed column 4421 from blocking the relative rotation of the first connecting rod 410 and the second connecting rod 420, thereby allowing the door body 200 to be smoothly closed relative to the box body 100.

[0078] In some embodiments, the support portion 442 is provided with a sixth rotation axis 4422. The sixth rotation axis 4422 is located on a side of the fixing column 4421 away from the locking portion 441. The sixth rotation axis 4422 is fixedly connected or integrally formed with the support portion 442. It can be understood that when the sixth rotation axis 4422 is integrally formed with the support portion 442, it means that the sixth rotation axis 4422 and the support portion 442 are a whole; when the sixth rotation axis 4422 is fixedly connected to the support portion 442, it means that the sixth rotation axis 4422 and the support portion 442 are two separate components.

[0079] The second connecting rod 420 has a fifth shaft hole 420b matched with the sixth rotating shaft 4422. The fifth shaft hole 420b is sleeved on the sixth rotating shaft 4422. The second connecting rod 420 can be rotatably disposed on the sixth rotating shaft 4422 through the fifth shaft hole 420b.

[0080] In some embodiments, the sixth rotating shaft 4422 is provided with a sleeve (not shown). The fifth shaft hole 420b of the second connecting rod 420 is sleeved on the sleeve. The sixth rotating shaft 4422 and the sleeve can rotate relative to each other to realize the pivoting function of the second hinge assembly 400, and the second connecting rod 420 can be relatively fixed to the sleeve; or the second connecting rod 420 is rotatably arranged on the sleeve through the fifth shaft hole 420b to realize the pivoting function of the second hinge assembly 400, and the sleeve can be relatively fixed to the sixth rotating shaft 4422. The provision of the sleeve can prevent the sixth rotating shaft 4422 from directly contacting the second connecting rod 420, reduce the wear of the sixth rotating shaft 4422 during the rotation of the second hinge assembly 400, and thus ensure the service life of the sixth rotating shaft 4422 and the second hinge assembly 400.

[0081] In some embodiments, the first connecting rod 410 and the second connecting rod 420 can be rotatably connected via a shaft-like component, and the shaft-like component can be a rivet or a pin, etc., but is not limited thereto.

[0082] In the embodiment of the present application, the first connecting rod 410 is rotatably disposed on the hinge seat 430 through a shaft-like component, the first connecting rod 410 and the second connecting rod 420 are rotatably connected through a shaft-like component, and the second connecting rod 420 is rotatably disposed on the self-locking member 440 through a sixth rotating shaft 4422. In the process of the door body 200 being opened or closed relative to the box body 100, the first connecting rod 410 and the second connecting rod 420 are relatively rotated to the first position state and the second position state through the preset rotating shaft.

[0083] Please continue reading Figures 1 to 13 , the present application also provides a refrigeration device 1000. The refrigeration device 1000 includes a box body 100, a door body 200 and a hinge mechanism 500 in any of the above embodiments. The box body 100 has a first side plate 111 and a second side plate 112 that are relatively arranged in the direction from the top to the bottom of the refrigeration device. The hinge mechanism 500 includes a first hinge assembly 300 and a second hinge assembly 400. The first hinge assembly 300 includes a first hinge body 310 and a second hinge body 320 that is rotatably connected to the first hinge body 310. One end of the first hinge body 310 is rotatably set on the first side plate 111, and the other end is rotatably set on the door body 200. One end of the second hinge body 320 is rotatably set on the first side plate 111, and the other end is rotatably set on the door body 200. One end of the first link 410 away from the second link 420 is used to rotate one of the second side plate 112 and the door body 200 , and one end of the second link 420 away from the first link 410 is used to rotate the other of the second side plate 112 and the door body 200 .

[0084] In some embodiments, the first side plate 111 may be located on a side of the cabinet 100 close to the top of the refrigeration device 1000. The second side plate 112 may be located on a side of the cabinet 100 close to the bottom of the refrigeration device 1000.

[0085] The first side plate 111 has a top surface 1111. The top surface 1111 is located on the side of the first side plate 111 facing away from the second side plate 112. The cabinet 100 has a door frame 120 on the side facing the door body 200. The door frame 120 includes first frame strips 121 arranged opposite to each other. The first frame strips 121 are the end surfaces of the second side plate 112 facing the door body 200. The door frame 120 also includes a second frame strip 122 arranged opposite to the first frame strip 121. The second frame strip 122 is located on the side of the door frame 120 close to the top of the refrigeration device 1000. The second frame strip 122 is the end surface of the first side plate 111 facing the door body 200. The door body 200 has a first end plate 201 and a second end plate 202 arranged opposite to each other. The first end plate 201 is arranged on the same side as the first side plate 111, and the second end plate 202 is arranged on the same side as the second side plate 112. The first hinge assembly 300 is connected between the top surface 1111 and the first end plate 201 , and the second hinge assembly 400 is connected between the first frame bar 121 and the second end plate 202 .

[0086] In some embodiments, the first hinge assembly 300 may also be connected between the second frame bar 122 and the first end plate 201 .

[0087] In the embodiments of the present application, the specific structures of the refrigeration device 1000 and the hinge mechanism 500 refer to the above embodiments. Since the refrigeration device 1000 provided in the present application adopts all the technical solutions of all the embodiments of the above-mentioned hinge mechanism 500, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0088] The present application provides a hinge mechanism and a refrigeration device, the hinge mechanism is used for the refrigeration device, the refrigeration device includes a box body and a door body, the box body has a first side panel and a second side panel relatively arranged in the direction from the top to the bottom of the refrigeration device, the hinge mechanism includes a first hinge assembly and a second hinge assembly, the first hinge assembly includes a first hinge body and a second hinge body rotatably connected to the first hinge body, one end of the first hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body, one end of the second hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body; the second hinge assembly includes a first connecting rod and a second connecting rod rotatably connected to the first connecting rod, an end of the first connecting rod away from the second connecting rod is used to be rotatably set on one of the second side panel and the door body, and an end of the second connecting rod away from the first connecting rod is used to be rotatably set on the other of the second side panel and the door body. The first hinge assembly in the embodiment of the present application is used to connect between the first side panel of the box body and the door body, and the second hinge assembly is used to connect between the second side panel of the box body and the door body. The first hinge assembly and the second hinge assembly have a simple structure, which not only reduces the types and quantities of parts during the assembly process, but also reduces the difficulty of assembly, saves working hours, and improves assembly efficiency. In addition, the first hinge assembly and the second hinge assembly are small in size and will not occupy too much space in the refrigeration equipment.

[0089] The specific structure and working principle of the hinge mechanism can be found in the above embodiments and will not be described in detail here.

[0090] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A hinge mechanism, characterized in that: Used for a refrigeration device, the refrigeration device comprises a box body and a door body, the box body has a first side plate and a second side plate arranged oppositely in a direction from the top to the bottom of the refrigeration device; the hinge mechanism comprises: A first hinge assembly, comprising a first hinge body and a second hinge body rotatably connected to the first hinge body, wherein one end of the first hinge body is rotatably arranged on the first side plate, and the other end is rotatably arranged on the door body, and one end of the second hinge body is rotatably arranged on the first side plate, and the other end is rotatably arranged on the door body; The second hinge assembly includes a first link and a second link rotatably connected to the first link, wherein an end of the first link away from the second link is used to rotate one of the second side panel and the door body, and an end of the second link away from the first link is used to rotate the other of the second side panel and the door body.

2. The hinge mechanism according to claim 1, characterized in that: The first hinge assembly and the second hinge assembly can rotate to open or close the door body relative to the box body, and the door body can be opened to a maximum angle relative to the box body, and the maximum angle is greater than or equal to 180°.

3. The hinge mechanism according to claim 1, characterized in that: The first hinge body comprises a third link and a fourth link rotatably connected to the third link, one end of the third link away from the fourth link is rotatably arranged on the first side plate, and one end of the fourth link away from the third link is rotatably arranged on the door body; The second hinge body includes a fifth link and a sixth link rotatably connected to the fifth link, one end of the fifth link away from the sixth link is rotatably set on the first side panel, one end of the sixth link away from the fifth link is rotatably set on the door body, and the fifth link is also rotatably connected to the fourth link.

4. The hinge mechanism according to claim 3, characterized in that: The orthographic projection of the fourth connecting rod on the plane where the first side plate is located at least partially falls on the fifth connecting rod, the orthographic projection of the fourth connecting rod on the fifth connecting rod has a first axial hole at a position corresponding to the fourth connecting rod, and the fifth connecting rod has a second axial hole matched with the first axial hole; The first hinge assembly further includes a first rotating shaft, and the first rotating shaft is used to cooperate with the first shaft hole and the second shaft hole to rotationally connect the fourth connecting rod and the fifth connecting rod.

5. The hinge mechanism according to claim 4, characterized in that: The fourth connecting rod comprises a first rod portion, an oblique rod portion and a second rod portion connected in sequence, the oblique rod portion is arranged obliquely relative to the first rod portion and the second rod portion, one end of the first rod portion away from the oblique rod portion is rotatably connected to the third connecting rod, one end of the second rod portion away from the oblique rod portion is rotatably arranged on the door body, and the first shaft hole is located at the connection between the first rod portion and the oblique rod portion; The fifth connecting rod includes a third rod portion, a connecting portion and a fourth rod portion connected in sequence, the connecting portion extends from the third rod portion in a direction away from the first side plate, an end of the third rod portion away from the connecting portion is rotatably arranged on the first side plate, an end of the fourth rod portion away from the connecting portion is rotatably connected to the sixth connecting rod, and the second axial hole is located in the third rod portion.

6. The hinge mechanism according to claim 4, characterized in that: The sixth connecting rod comprises a fifth rod portion, an avoidance portion and a sixth rod portion which are connected in sequence. The fifth rod portion and the avoidance portion, as well as the avoidance portion and the sixth rod portion are smoothly arranged. The avoidance portion is used to avoid the fourth connecting rod.

7. The hinge mechanism according to claim 1, characterized in that: The second hinge assembly also includes: A hinge seat is disposed on one of the second side plate and the door body, and one end of the first connecting rod away from the second connecting rod is rotatably disposed on the hinge seat; A self-locking member is provided on the other of the second side panel and the door body, and is used to engage with the hinge seat to lock the door body when the door body is in a closed state relative to the box body. The second connecting rod is rotatably provided on the self-locking member at one end away from the first connecting rod.

8. The hinge mechanism according to claim 7, characterized in that: The hinge seat includes a clamping portion, which is formed with a clamping block and a first clamping groove that are adjacently arranged. The first clamping groove and the clamping block are used to engage with the self-locking member to lock the door body.

9. The hinge mechanism according to claim 8, characterized in that: The self-locking member includes a locking portion, which includes a bending section and a locking section connected to the bending section, the bending section and the locking section form a second slot, and when the door body is in a closed state relative to the box body, the locking section is engaged with the first slot, and the second slot is engaged with the blocking block.

10. A refrigeration device, characterized in that: include: A box body having a first side plate and a second side plate arranged opposite to each other in a direction from the top to the bottom of the refrigeration device; Door body; The hinge mechanism according to any one of claims 1 to 9; Among them, one end of the first hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body; one end of the second hinge body is rotatably set on the first side panel, and the other end is rotatably set on the door body; one end of the first connecting rod away from the second connecting rod is used to be rotatably set on one of the second side panel and the door body, and one end of the second connecting rod away from the first connecting rod is used to be rotatably set on the other of the second side panel and the door body.

11. The refrigeration device according to claim 10, characterized in that: The first side plate has a top surface, the top surface is located on the side of the first side plate facing away from the second side plate, the box body has a door frame on the side facing the door body, the door frame includes a first frame strip, and the first frame strip is the end surface of the second side plate facing the door body; The door body comprises a first end plate and a second end plate which are arranged opposite to each other, wherein the first end plate is arranged on the same side as the first side plate, and the second end plate is arranged on the same side as the second side plate; The first hinge assembly is connected between the top surface and the first end plate, and the second hinge assembly is connected between the first frame bar and the second end plate.

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