Refrigeration equipment

Abstract

The utility model provides refrigeration equipment which comprises a box body, a door body and a hinge device, the door body is provided with a movable pivoting end and an opening and closing end which are oppositely arranged, and the hinge device comprises at least two hinge assemblies arranged at the movable pivoting end at intervals; the hinge assembly comprises a first connecting rod and a second connecting rod which are hinged to the refrigerator body, and a third connecting rod and a fourth connecting rod which are hinged to the door body, and the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are mutually hinged; only one of the at least two hinge assemblies further comprises a door closing mechanism used for assisting door closing. The self-service door closing force applied to the door body by the whole hinge device can be reduced, so that the hinge device can reduce the opening force required by a user to open the door body on the basis of realizing assisted door closing and keeping the closed state of the door body; meanwhile, the size of each hinge assembly can be reduced, so that the storage space in the box body can be increased.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, and in particular to a refrigeration device. Background Art

[0002] With the development of society and the gradual improvement of people's quality of life, people's demand for aesthetically pleasing home decoration has become increasingly prominent. Embedding refrigeration equipment (such as refrigerators) into external environmental components such as cabinets and walls to achieve a unified home decoration style has become popular. However, the door of traditional refrigeration equipment is configured to rotate around a fixed axis to open and close. During the rotation of the door, the pivot end of the door will protrude toward the external environmental component, causing interference with the external environmental component, affecting the opening of the door and the use of the refrigeration equipment.

[0003] Some existing refrigeration equipment uses a hinge device that can drive the door body to move horizontally during the rotation of the door body to achieve a movable connection between the door body and the box body. When the door body is opened relative to the box body, under the drive of the hinge device, the door body rotates and moves horizontally along a preset trajectory, which can avoid interference between the door body and external environmental parts.

[0004] In order to integrate a door closer with an assisting door closing function and a damper with a buffering effect to prevent excessive door closing force, some existing hinge devices are configured as more complex connecting rod hinges, that is, the existing connecting rod hinges are integrated with dampers and door closers. On the one hand, in the refrigeration equipment using the connecting rod hinge, since the connecting rod hinges at both ends of the door body are integrated with door closers and dampers, the closing force of the door body is relatively large, and the opening force required to open the door body is relatively large, which is not conducive to the user to open the door body smoothly and affects the user experience of the refrigeration equipment; on the other hand, since the connecting rod hinge needs to integrate the damper and door closer, the connecting rod hinge generally provides installation space for the damper and door closer, resulting in a larger connecting rod hinge volume and affecting the storage capacity of the refrigeration equipment. Utility Model Content

[0005] The present application provides a refrigeration device.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: A refrigeration appliance, comprising a housing, a door, and a hinge device for movably connecting the door to the housing, wherein the door has a movable pivot end and an opening and closing end disposed opposite to each other, and the hinge device comprises at least two hinge assemblies spaced apart at the movable pivot end;

[0007] The hinge assembly includes a first connecting rod and a second connecting rod hinged to the box body, and a third connecting rod and a fourth connecting rod hinged to the door body, wherein the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are hinged to each other;

[0008] Only one of the at least two sets of hinge assemblies further includes a door closing mechanism for assisting in closing the door.

[0009] In one embodiment of the present application, the hinge assembly having the door closing mechanism is provided at the upper end of the door body.

[0010] In one embodiment of the present application, the hinge assembly having the door closing mechanism is provided at the lower end of the door body.

[0011] In one embodiment of the present application, the opening and closing end has a handle portion, and the hinge assembly farthest from the handle portion in the at least two groups of hinge assemblies has the door closing mechanism; or, the hinge assembly at one end of the movable pivot end away from the handle portion has the door closing mechanism.

[0012] In one embodiment of the present application, the refrigeration equipment includes two door bodies arranged side by side in the left and right directions, and two hinge devices corresponding to the two door bodies one by one; the hinge components with the door closing mechanism in the two hinge devices are located on the same side.

[0013] In one embodiment of the present application, the refrigeration equipment includes two door bodies arranged side by side in the left and right directions, and two hinge devices corresponding to the two door bodies one by one; the hinge components with the door closing mechanism in the two hinge devices are located on opposite sides.

[0014] In one embodiment of the present application, the refrigeration equipment includes two door bodies arranged side by side in the up and down direction, two hinge devices corresponding to the two door bodies one by one, and a crossbeam located between the two door bodies; the hinge assembly with the door closing mechanism in the hinge device is installed on the crossbeam; or the hinge assembly with the door closing mechanism in the hinge device is located at the end of the movable pivot end away from the crossbeam; or the hinge assembly with the door closing mechanism in one hinge device is installed on the crossbeam, and the hinge assembly with the door closing mechanism in the other hinge device is located at the end of the movable pivot end away from the crossbeam.

[0015] In one embodiment of the present application, the door body includes a first door body, a second door body arranged side by side with the first door body in the left-right direction, a third door body located below the first door body, and a fourth door body located below the second door body, and the hinge device corresponds one-to-one to the first door body, the second door body, the third door body, and the fourth door body.

[0016] In one embodiment of the present application, the hinge assembly at the upper end of each hinge device has the door closing mechanism.

[0017] In one of the embodiments of the present application, the box has a fixed pivoting end corresponding to the movable pivoting end, the second connecting rod is located on the side of the first connecting rod away from the fixed pivoting end, the fourth connecting rod is located on the side of the third connecting rod away from the movable pivoting end, and an end of the fourth connecting rod away from the door body is hingedly connected to an end of the second connecting rod away from the box; the door closing mechanism comprises a pushing component arranged on one of the second connecting rod and the fourth connecting rod, and a cam component arranged on the other and used to cooperate with the pushing component.

[0018] Compared with the prior art, the beneficial effects of the present application are that: in the refrigeration equipment in the present application, only one of the hinge assemblies corresponding to one door body in the plurality of six connecting rod structures is integrated with a door closing mechanism, and the other hinge assemblies are pure six connecting rod structures, i.e., without a door closing mechanism and a damper; on the one hand, the door closing force exerted on the door body by the hinge device as a whole can be reduced, so that the hinge device can realize power-assisted door closing and maintaining of the closed state of the door body, and the opening force required by the user to open the door body can also be reduced, improving the user experience; on the other hand, since part of the hinge assemblies do not need to be installed with a door closing mechanism and a damper, the installation space for the door closing mechanism and the damper does not need to be reserved during design, and the hinge assembly with only the door closing mechanism also does not need to reserve the installation space for the damper during design, so that the volume of each hinge assembly can be reduced, i.e., the size of the installation position on the box can be reduced, so that the storage space in the box can be increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the refrigeration equipment in one of the embodiments of the present application;

[0020] Figure 2 is a structural schematic view of the refrigeration equipment in one of the embodiments of the present application; Figure 1 is a structural schematic view of the refrigeration equipment in one of the embodiments of the present application;

[0021] Figure 3 is a structural schematic view of the second hinge assembly in one of the embodiments of the present application;

[0022] Figure 4 is an exploded view of Figure 3 ;

[0023] Figure 5 is a structural schematic view of the first hinge assembly in one of the embodiments of the present application;

[0024] Figure 6 is an exploded view of the second connecting rod and the fourth connecting rod in Figure 5 ;

[0025] Figure 7 yes Figure 5 Schematic diagram of the structure of the closing mechanism;

[0026] Figure 8 yes Figure 7 Exploded view of

[0027] Wherein: 100, refrigeration equipment; 1, cabinet; P3, fixed pivot end; 11, crossbeam; 2, door body; P1, movable pivot end; P2, opening and closing end; 3, hinge device; 31, hinge assembly; 311, first connecting rod; 312, second connecting rod; 3121, limiting groove; 313, third connecting rod; 314, fourth connecting rod; 315, fixed hinge member; 3151, socket; 316, movable hinge member; A, first hinge point; B , second hinge point; C, third hinge point; D, fourth hinge point; E, fifth hinge point; F, sixth hinge point; G, seventh hinge point; 31a, first hinge assembly; 31b, second hinge assembly; 4, door closing mechanism; 41, pushing component; 411, connecting seat; 412, force-applying end; 413, elastic component; 414, limiting shaft; 415, damping rod; 42, cam component; 421, cam body; 422, connecting part. DETAILED DESCRIPTION

[0028] The following will be combined with the attached Figure 1-8 The specific embodiments shown are used to describe the present application in detail. However, these embodiments do not limit the present application, and any structural, methodological, or functional changes made by those skilled in the art based on these embodiments are all included in the scope of protection of the present application.

[0029] The words expressing position and direction described in this application are based on the side where the door body is located when the refrigeration equipment is in normal use as the "front", that is, the setting position of the door body relative to the box body is the front, the door body is located on the front side of the box body, and correspondingly, the box body is located on the back side of the door body. At the same time, the terms first, second, third, fourth, etc. in this application are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. In addition, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "connected", and "fixed" should be understood in a broad sense. For example, the connection can be a direct connection or an indirect connection through an intermediate medium, and can be a fixed connection or a movable connection or a detachable connection or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] It should be noted that, in the absence of conflict, the specific embodiments and features in the embodiments disclosed in this application can be combined with each other.

[0031] Combine Figures 1 to 8 As shown, the present application provides a refrigeration device 100, which includes a housing 1, a door 2, and a hinge device 3 that movably connects the door 2 to the housing 1. The door 2 has a movable pivot end P1 and an opening and closing end P2 that are arranged opposite to each other, and the hinge device 3 includes at least two sets of hinge components 31 that are spaced apart from each other at the movable pivot end P1.

[0032] The movable pivot end P1 refers to the end of the door body 2 close to the hinge device 3. During the process of the door body 2 rotating to open, the angle formed by the door body 2 at the movable pivot end P1 and the box body 1 gradually increases. During the process of the door body 2 rotating to close, the angle formed by the door body 2 at the movable pivot end P1 and the box body 1 gradually decreases.

[0033] In one specific embodiment, the hinge device 3 includes two sets of hinge assemblies 31 disposed at opposite ends of the movable pivot end P1 to improve the stability of the movable connection between the door body 2 and the cabinet 1. In an embodiment in which the refrigeration equipment 100 is a vertical refrigeration equipment, the two sets of hinge assemblies 31 are disposed at the ends of the movable pivot end P1, that is, one set is disposed at the upper end of the door body 2 and the other set is disposed at the lower end of the door body 2. Of course, this is not limiting. In other embodiments, the two sets of hinge assemblies 31 may not be disposed at the ends of the movable pivot end P1, but may be disposed at intervals between the two ends of the movable pivot end P1. Alternatively, in other embodiments, more than two sets of hinge assemblies 31 may be disposed.

[0034] In this embodiment, the hinge assembly 31 includes a first link 311 and a second link 312 hinged to the box body 1, and a third link 313 and a fourth link 314 hinged to the door body 2. The first link 311, the second link 312, the third link 313, and the fourth link 314 are hinged to each other. That is, the first link 311, the second link 312, the third link 313, the fourth link 314, the box body 1, and the door body 2 together form a six-link structure. In a specific embodiment, the hinge assembly 31 also includes a fixed hinge 315 fixed to the box body 1 and a movable hinge 316 fixed to the door body 2. The first connecting rod 311 and the second connecting rod 312 are hinged to the fixed hinge 315, and the third connecting rod 313 and the fourth connecting rod 314 are hinged to the movable hinge 316, so that the hinge assembly 31 as a whole is modularly arranged, which facilitates the disassembly and assembly between the hinge assembly 31 and the door body 2 and the box body 1.

[0035] In some optional embodiments, the box body 1 has a fixed pivot end P3 corresponding to the movable pivot end P1, and the second link 312 is located on a side of the first link 311 away from the fixed pivot end P3, that is, the first link 311 is hinged to the first hinge point A of the fixed hinge 315, and the second link 312 is hinged to the second hinge point B of the fixed hinge 315, and the second hinge point B is located on a side of the first hinge point A away from the fixed pivot end P3. The fourth link 314 is located on a side of the third link 313 away from the movable pivot end P1, that is, the third link 313 is hinged to the third hinge point C of the movable hinge 316, and the fourth link 314 is hinged to the fourth hinge point D of the movable hinge 316, and the fourth hinge point D is located on a side of the third hinge point C away from the movable pivot end P1. The end of the fourth link 314 away from the door body 2 is hinged to the end of the second link 312 away from the box body 1, that is, the end of the fourth link 314 away from the fourth hinge point D and the end of the second link 312 away from the second hinge point B are hinged at the fifth hinge point E, the end of the first link 311 away from the first hinge point A is hinged to the sixth hinge point F on the fourth link 314, and the sixth hinge point F is located between the fourth hinge point D and the fifth hinge point E, the end of the third link 313 away from the third hinge point C is hinged to the seventh hinge point G on the first link 311, and the seventh hinge point G is located between the first hinge point A and the sixth hinge point F. Through the aforementioned hinged connection, the first connecting rod 311, the second connecting rod 312, the third connecting rod 313, and the fourth connecting rod 314 are hinged to each other. During the opening and closing of the door body 2, the first connecting rod 311, the second connecting rod 312, the third connecting rod 313, and the fourth connecting rod 314 are linked to each other to drive the door body 2 to move along a predetermined trajectory. Of course, the hinged structure of the first connecting rod 311, the second connecting rod 312, the third connecting rod 313, and the fourth connecting rod 314 is not limited to this.

[0036] Among the at least two groups of hinge assemblies 31 in the hinge device 3 , only one group of hinge assemblies 31 further includes a door closing mechanism 4 for assisting door closing. In the present application, among the multiple six-link structure hinge assemblies 31 corresponding to a door body 2, only one of the hinge assemblies 31 is only integrated with the door closing mechanism 4, and the other hinge assemblies 31 are pure six-link structures, that is, they do not have the door closing mechanism 4 and the damper; on the one hand, it can reduce the self-service closing force applied by the hinge device 3 on the door body 2 as a whole, so that the hinge device 3 can achieve power-assisted door closing and keep the door body 2 closed, and can also reduce the opening force required for the user to open the door body 2, thereby improving the user experience; on the other hand, because some hinge assemblies 31 do not need to be installed with the door closing mechanism 4 and the damper, there is no need to reserve installation space for the door closing mechanism 4 and the damper during design, and at the same time, the hinge assembly 31 that is only installed with the door closing mechanism 4 does not need to reserve installation space for the damper during design, so that the volume of each hinge assembly 31 can be reduced, that is, the installation position size on the box body 1 is reduced, thereby increasing the storage space in the box body 1.

[0037] In the following, for the convenience of description, the hinge assembly 31 with the door closing mechanism 4 is referred to as the first hinge assembly 31a, and the hinge assembly 31 without the door closing mechanism 4 and the damper is referred to as the second hinge assembly 31b, that is, the hinge device 3 only includes one first hinge assembly 31a and at least one second hinge assembly 31b.

[0038] For a single door body 2, when the door body 2 is divided into an upper end and a lower end, in some optional embodiments, the hinge assembly 31 having the door closing mechanism 4 is provided at the upper end of the door body 2, that is, the first hinge assembly 31a is provided at the upper end of the door body 2, and the second hinge assembly 31b is provided at the lower end of the door body 2. When the door body 2 is in a closed state, the door closing mechanism 4 acts on the upper end of the door body 2, so that the upper end of the door body 2 is attached to the box body 1, preventing the door body 2 from tipping over under the action of its own weight, thereby improving the sealing performance of the door body 2 and preventing cold leakage. Of course, this is not limited to this. In other optional embodiments, the hinge assembly 31 having the door closing mechanism 4 can also be provided at the lower end of the door body 2, that is, the first hinge assembly 31a can also be provided at the lower end of the corresponding door body 2, and the second hinge assembly 31b is provided at the upper end of the door body 2.

[0039] For a single door body 2, when defining the opening and closing end P2 as having a handle portion, in some optional embodiments, the hinge assembly 31 farthest from the handle portion among the at least two sets of hinge assemblies 31 comprises the door closing mechanism 4, that is, the hinge assembly 31 at the end of the movable pivot end P1 away from the handle portion is the first hinge assembly 31a, so that the lever arm between the handle portion and the door closing mechanism 4 is longer, thereby further reducing the opening force required by the user to open the door body 2 and improving the user experience. Of course, this is not limited to this. In other embodiments, it can also be set that the hinge assembly 31 closest to the handle portion among the at least two sets of hinge assemblies 31 comprises the door closing mechanism 4, reducing the lever arm between the handle portion and the door closing mechanism 4, and improving the response efficiency of the door closing mechanism 4 when the user acts on the handle portion.

[0040] The hinge assembly 31 farthest from the handle portion among the at least two groups of hinge assemblies 31 mentioned above has the door closing mechanism 4, or the hinge assembly 31 at the end of the movable pivot end P1 away from the handle portion has the door closing mechanism 4. Specifically, it means that: when the handle portion is arranged close to the lower end of the door body 2, the hinge assembly 31 arranged at the upper end of the door body 2 is the hinge assembly 31 with the door closing mechanism 4, and the hinge assembly 31 without the door closing mechanism 4 and the damper is arranged at the lower end of the door body 2; when the handle portion is arranged close to the upper end of the door body 2, the hinge assembly 31 with the door closing mechanism 4 is arranged at the lower end of the door body 2, and the hinge assembly 31 without the door closing mechanism 4 and the damper is arranged at the upper end of the door body 2; when the handle portion is arranged close to the middle section in the height direction of the door body 2, the hinge assembly 31 with the door closing mechanism 4 can be selectively arranged at the upper end or the lower end of the door body 2.

[0041] When the refrigeration equipment 100 has two door bodies 2 arranged side by side in the left-right direction and two hinge devices 3 corresponding to the two door bodies 2, it can be set that the hinge components 31 with the door closing mechanism 4 in the two hinge devices 3 are located on the same side, that is, the first hinge components 31a in the two door bodies 2 are located on the same side, such as being located at the upper end of the corresponding door body 2 or at the lower end of the corresponding door body 2 at the same time; it can also be set that the hinge components 31 with the door closing mechanism 4 in the two hinge devices 3 are located on opposite sides, that is, the first hinge components 31a in the two door bodies 2 are located on opposite sides, such as the first hinge component 31a is set at the upper end of one door body 2 and the first hinge component 31a is set at the lower end of one door body 2.

[0042] In the embodiment where the hinge assembly 31 having the door closing mechanism 4 is located on the same side in the two door bodies 2 arranged side by side in the left-right direction, it can be known that the handle portions in the two door bodies 2 are generally arranged correspondingly. Therefore, it can also be regarded as that the hinge assembly 31 corresponding to the end of the corresponding movable pivot end P1 away from the handle portion in the two door bodies 2 is set to have the door closing mechanism 4, or the hinge assembly 31 corresponding to the end of the corresponding movable pivot end P1 close to the handle portion is set to have the door closing mechanism 4.

[0043] In the embodiment where the hinge assembly 31 having the door closing mechanism 4 is located on opposite sides of the two door bodies 2 arranged side by side in the left-right direction, it can be known that the handle portions in the two door bodies 2 are generally arranged correspondingly. Therefore, it can also be regarded as that one of the two door bodies 2 is provided with the hinge assembly 31 away from the handle portion having the door closing mechanism 4, and the other is provided with the hinge assembly 31 close to the handle portion having the door closing mechanism 4.

[0044] At the same time, in an embodiment where the hinge assemblies 31 having the door closing mechanism 4 in the two door bodies 2 arranged side by side in the left and right directions are located on opposite sides, if one of the two door bodies 2 has a flip beam, the hinge assembly 31 at the lower end of the door body 2 with the flip beam can be set to have a door closing mechanism 4, and the hinge assembly 31 at the upper end of the other door body 2 without the flip beam can be set to have a door closing mechanism 4, that is, the first hinge assembly 31a is set at the lower end of the door body 2 with the flip beam, and the first hinge assembly 31a is set at the upper end of the door body 2 without the flip beam. It is known that for the door body 2 with a flip beam, a guide limit groove that cooperates with the flip beam is provided on the box body 1. When the door body 2 with the flip beam is in the closed state, the flip beam and the guide limit groove cooperate to limit the door body 2 and prevent it from tipping over. Therefore, at this time, the door closing mechanism 4 is arranged on the hinge assembly 31 at the lower end of the door body 2, and the door body 2 will not be at risk of tipping over. The other door body 2 without a flip beam is prevented from tipping over under the action of its own weight by arranging the door closing mechanism 4 on the hinge assembly 31 at its upper end. This can improve the sealing performance of the door body 2 and prevent cold air leakage.

[0045] For the refrigeration equipment 100 has two door bodies 2 arranged side by side along the up-down direction, two hinge devices 3 corresponding to the two door bodies 2, and a cross beam 11 between the two door bodies 2, for the upper door body 2, the hinge assembly 31 at the lower end is fixed to the cross beam 11, and for the lower door body 2, the hinge assembly 31 at the upper end is fixed to the cross beam 11. At this time, the hinge assembly 31 with the door closing mechanism 4 in the hinge device 3 can be installed on the cross beam 11, that is, the first hinge assembly 31a is arranged at the lower end for the upper door body 2, and the first hinge assembly 31a is arranged at the upper end for the lower door body 2. It is known that in this kind of refrigeration equipment 100, generally, the handle part of the upper door body 2 is arranged close to the lower end, and the handle part of the lower door body 2 is arranged close to the upper end. At this time, it can also be regarded that the hinge assembly 31 close to the end of the corresponding movable pivoting end P1 of the hinge device 3 in the two door bodies 2 is provided with the door closing mechanism 4.

[0046] For the refrigeration equipment 100 has two door bodies 2 arranged side by side along the up-down direction, two hinge devices 3 corresponding to the two door bodies 2, and a cross beam 11 between the two door bodies 2; the hinge assembly 31 with the door closing mechanism 4 in the hinge device 3 can also be arranged at the end away from the cross beam 11, that is, the hinge assembly 31 at the upper end of the upper door body 2 is provided with the door closing mechanism 4, and the hinge assembly 31 at the lower end of the lower door body 2 is provided with the door closing mechanism 4. It is known that in this kind of refrigeration equipment 100, generally, the handle part of the upper door body 2 is arranged close to the lower end, and the handle part of the lower door body 2 is arranged close to the upper end. At this time, it can also be regarded that the hinge assembly 31 away from the end of the corresponding movable pivoting end P1 of the hinge device 3 in the two door bodies 2 is provided with the door closing mechanism 4.

[0047] For the refrigeration equipment 100 with two door bodies 2 arranged side by side in the up-down direction, two hinge devices 3 corresponding to the two door bodies 2, and a cross beam 11 between the two door bodies 2, the hinge assembly 31 with the door closing mechanism 4 in one of the hinge devices 3 can be installed on the cross beam 11, and the hinge assembly 31 with the door closing mechanism 4 in the other hinge device 3 is located at the end away from the cross beam 11. For example, for the upper door body 2, the hinge assembly 31 at the upper end is provided with the door closing mechanism 4, that is, the hinge assembly 31 away from the handle part in the upper door body 2 is provided with the door closing mechanism 4. At this time, for the lower door body 2, the hinge assembly 31 at the upper end is provided with the door closing mechanism 4, that is, the hinge assembly 31 close to the handle part in the lower door body 2 is provided with the door closing mechanism 4. Alternatively, for the upper door body 2, the hinge assembly 31 at the lower end is provided with the door closing mechanism 4, that is, the hinge assembly 31 close to the handle part in the upper door body 2 is provided with the door closing mechanism 4. At this time, for the lower door body 2, the hinge assembly 31 at the lower end is provided with the door closing mechanism 4, that is, the hinge assembly 31 away from the handle part in the lower door body 2 is provided with the door closing mechanism 4.

[0048] In combination Figure 1 As shown in a specific embodiment, the refrigeration equipment 100 includes four door bodies 2 and four hinge devices 3 corresponding to the four door bodies 2. Specifically, the door bodies 2 include a first door body 21, a second door body 22 arranged side by side with the first door body 21 in the left-right direction, a third door body 23 below the first door body 22, and a fourth door body 24 below the second door body 23.

[0049] It can be seen that the first door body 21 and the second door body 22, and the third door body 23 and the fourth door body 24 are the two door bodies 2 arranged side by side in the left-right direction, and the first door body 21 and the third door body 23, and the second door body 22 and the fourth door body 24 are the two door bodies 2 arranged side by side in the up-down direction. The arrangement position of the hinge assembly 31 with the door closing mechanism 4 in each door body 2 can be set according to specific needs.

[0050] In one specific embodiment, the first door body 21, the second door body 22, the third door body 23, and the fourth door body 24 are all configured such that the hinge assembly 31 corresponding to the upper end of the door body 2 is a first hinge assembly 31a, and the hinge assembly 31 corresponding to the lower end of the door body 2 is a second hinge assembly 31b. Of course, this is not limiting. In other embodiments, the upper ends of the first door body 21 and the second door body 22 can also be configured as the first hinge assembly 31a, and the lower ends of the third door body 23 and the fourth door body 24 can be configured as the first hinge assembly 31a; or, the lower ends of the first door body 21 and the second door body 22 can also be configured as the first hinge assembly 31a, and the upper ends of the third door body 23 and the fourth door body 24 can be configured as the first hinge assembly 31a. It is understood that the location of the hinge assembly 31 with the door closing mechanism 4 in each door body 2 can be set according to specific needs, and no further examples are given here.

[0051] In some optional embodiments, the door closing mechanism 4 includes a pushing member 41 provided on one of the second connecting rod 312 and the fourth connecting rod 314, and a cam member 42 provided on the other and configured to cooperate with the pushing member 41. In the final stage of closing the door body 2, the pushing member 41 acts on the cam member 42 to drive the door body 2 to automatically close.

[0052] In one embodiment, the pushing member 41 is disposed on the second connecting rod 312, and the cam member 42 is disposed on the fourth connecting rod 314. Specifically, the pushing member 41 includes a connecting seat 411 connected to the second connecting rod 312, a force-applying end 412 opposite the connecting seat 411 and configured to mate with the cam member 42, and an elastic member 413 connected between the connecting seat 411 and the force-applying end 412. The force-applying end 412 has a limiting shaft 414, and the second connecting rod 312 is provided with a limiting slot 3121 that mates with the limiting shaft 414. The limiting slot 3121 limits the movement direction and travel of the limiting shaft 414.

[0053] In some optional embodiments, the extension direction of the limiting groove 3121 is consistent with the deformation direction of the elastic member 413, so that the force direction of the door closing mechanism 4 is relatively single, and the movement direction of the elastic member 413 is single, which can improve the stability of the door closing mechanism 4.

[0054] In one embodiment, the pushing member 41 includes a damping rod 415 connected between the connecting seat 411 and the force-applying end 412, and the elastic member 413 is a spring sleeved on the damping rod 415. In this case, the extending direction of the above-mentioned limiting groove 3121 is consistent with the axial direction of the damping rod 415.

[0055] In some optional embodiments, the cam component 42 is riveted to the fourth connecting rod 314, which improves the firmness and stability of the fixed connection between the cam component 42 and the fourth connecting rod 314 and improves the smoothness of opening and closing of the door body 2.

[0056] Specifically, the fourth connecting rod 314 and the second connecting rod 312 are hingedly connected via a hinge shaft. The cam component 42 includes a cam body 421 sleeved on the hinge shaft, a connecting portion 422 connected to the cam body 421, and the connecting portion 422 is riveted to the fourth connecting rod 314. It can be seen that in the final stage of closing the door body 2, the cam body 421 cooperates with the force-applying end 412 to achieve power-assisted door closing.

[0057] In some optional embodiments, the fixed hinge 315 has a socket 3151, in which a limit pin is removably disposed. When the door body 2 is rotated and opened to a limit angle, the second connecting rod 312 abuts against the limit pin, thereby limiting the maximum opening angle of the door body 2 and preventing interference between the door body 2 and the external environment.

[0058] In one embodiment, for the hinge device 3 corresponding to one door body 2, the limit pin may be provided on only one hinge assembly 31, such as a limit pin provided in a pluggable manner only on the fixed hinge part 315 of the second hinge assembly 31b. Of course, this is not limiting, and in other embodiments, a limit pin may be provided in a pluggable manner on each hinge assembly 31.

[0059] In summary, in the refrigeration equipment 100 in the present application, among the multiple six-link structure hinge assemblies 31 corresponding to a door body 2, only one of the hinge assemblies 31 is only integrated with the door closing mechanism 4, and the other hinge assemblies 31 are pure six-link structures, that is, they do not have the door closing mechanism 4 and the damper; on the one hand, it can reduce the self-service closing force applied by the hinge device 3 to the door body 2 as a whole, so that the hinge device 3 can achieve power-assisted door closing and keep the door body 2 closed, and can also reduce the opening force required for the user to open the door body 2, thereby improving the user's experience; on the other hand, because some hinge assemblies 31 do not need to be installed with the door closing mechanism 4 and the damper, there is no need to reserve installation space for the door closing mechanism 4 and the damper during design, and at the same time, the hinge assembly 31 that is only equipped with the door closing mechanism 4 does not need to reserve installation space for the damper during design, so that the volume of each hinge assembly 31 can be reduced, that is, the installation position size on the box body 1 is reduced, thereby increasing the storage space in the box body 1.

[0060] The above examples are only used to illustrate the technical solutions of the present application but not limit the present application, and even though the present application has been described in detail with reference to the preferred embodiments, for example, the technologies in different embodiments can be used together to achieve the corresponding effects, and the solutions are within the protection scope of the present application. It should be understood by those of ordinary skill in the art that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A refrigeration device (100), comprising a housing (1), a door (2), and a hinge device (3) for movably connecting the door (2) to the housing (1), wherein the door (2) has a movable pivot end (P1) and an opening and closing end (P2) arranged opposite to each other, and the hinge device (3) comprises at least two sets of hinge assemblies (31) arranged at intervals on the movable pivot end (P1); characterized in that: The hinge assembly (31) comprises a first connecting rod (311) and a second connecting rod (312) hinged to the box body (1), and a third connecting rod (313) and a fourth connecting rod (314) hinged to the door body (2); the first connecting rod (311), the second connecting rod (312), the third connecting rod (313), and the fourth connecting rod (314) are hinged to each other; Only one of the at least two sets of hinge assemblies (31) further comprises a door closing mechanism (4) for assisting door closing.

2. The refrigeration device (100) according to claim 1, characterized in that: The hinge assembly (31) having the door closing mechanism (4) is arranged at the upper end of the door body (2).

3. The refrigeration device (100) according to claim 1, characterized in that: The hinge assembly (31) having the door closing mechanism (4) is arranged at the lower end of the door body (2).

4. The refrigeration device (100) according to claim 1, characterized in that: The opening and closing end (P2) has a handle portion, and the hinge assembly (31) farthest from the handle portion in the at least two groups of hinge assemblies (31) has the door closing mechanism (4); or, the hinge assembly (31) at the end of the movable pivot end (P1) farthest from the handle portion has the door closing mechanism (4).

5. The refrigeration device (100) according to any one of claims 1 to 4, characterized in that: The refrigeration device (100) comprises two door bodies (2) arranged side by side in the left-right direction, and two hinge devices (3) corresponding to the two door bodies (2) one by one; the hinge components (31) having the door closing mechanism (4) in the two hinge devices (3) are located on the same side.

6. The refrigeration device (100) according to any one of claims 1 to 4, characterized in that: The refrigeration device (100) comprises two door bodies (2) arranged side by side in the left-right direction, and two hinge devices (3) corresponding to the two door bodies (2) one by one; the hinge components (31) having the door closing mechanism (4) in the two hinge devices (3) are located on opposite sides.

7. The refrigeration device (100) according to any one of claims 1 to 4, characterized in that: The refrigeration equipment (100) comprises two door bodies (2) arranged side by side in the vertical direction, two hinge devices (3) corresponding to the two door bodies (2) one by one, and a crossbeam (11) located between the two door bodies (2); the hinge assembly (31) having the door closing mechanism (4) in the hinge device (3) is installed on the crossbeam (11); or the hinge assembly (31) having the door closing mechanism (4) in the hinge device (3) is located at one end of the movable pivot end (P1) away from the crossbeam (11); or the hinge assembly (31) having the door closing mechanism (4) in one hinge device (3) is installed on the crossbeam (11), and the hinge assembly (31) having the door closing mechanism (4) in the other hinge device (3) is located at one end of the movable pivot end (P1) away from the crossbeam (11).

8. The refrigeration device (100) according to any one of claims 1 to 4, characterized in that: The door body (2) includes a first door body (21), a second door body (22) arranged side by side with the first door body (21) in the left-right direction, a third door body (23) located below the first door body (21), and a fourth door body (24) located below the second door body (22). The hinge device (3) corresponds one-to-one to the first door body (21), the second door body (22), the third door body (23), and the fourth door body (24).

9. The refrigeration device (100) according to claim 8, characterized in that: The hinge assembly (31) located at the upper end of each hinge device (3) has the door closing mechanism (4).

10. The refrigeration device (100) according to claim 1, characterized in that: The box body (1) has a fixed pivot end (P3) corresponding to the movable pivot end (P1), the second link (312) is located on the side of the first link (311) away from the fixed pivot end (P3), the fourth link (314) is located on the side of the third link (313) away from the movable pivot end (P1), and the end of the fourth link (314) away from the door body (2) is hinged to the end of the second link (312) away from the box body (1); the door closing mechanism (4) includes a pushing component (41) provided on one of the second link (312) and the fourth link (314), and a cam component (42) provided on the other and used to cooperate with the pushing component (41).

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