Hinge and refrigeration device having the same

Abstract

This invention discloses a hinge and a cooling device. The hinge includes: a fixed base fixed to a housing, the fixed base having a first sliding groove and a slider slidably connected to the first sliding groove; a movable base fixed to a door, one end of the movable base being connected to a hinge shaft; and a linkage assembly disposed between the slider and the movable base. The linkage assembly includes a telescopic rod assembly, one end of which is rotatably connected to the fixed base, and the other end is movably connected to the movable base. The telescopic rod assembly has a non-extendable first state and a extendable second state. When the telescopic rod assembly is in the first state, as the movable base rotates around the hinge shaft, the linkage assembly drives the movable base to move synchronously with the slider. When the telescopic rod assembly is in the second state, the movable base can rotate in place around the hinge shaft. This reduces the restriction on the door opening degree and facilitates user operation.

Description

Technical Field

[0001] This invention relates to the field of home appliance technology, and more particularly to a hinge and a refrigeration device having the hinge. Background Technology

[0002] As society develops and people's quality of life gradually improves, the demand for built-in refrigerators that can fit into relatively deep and narrow spaces (such as cabinets) is becoming increasingly prominent. However, in actual use, due to the influence of the hinged structure between the refrigerator door and the refrigerator body in traditional refrigerators, when the refrigerator door is opened, the hinged side often protrudes from the side wall of the refrigerator body. When such a refrigerator is placed in a deep and narrow space, the refrigerator door will interfere with the deep and narrow space or other objects placed in the deep and narrow space. This not only affects the opening range of the refrigerator door, but also damages the surface of the refrigerator door, affecting its aesthetics.

[0003] To avoid interference when the door is opened, the structure of the hinge connecting the box and the door is usually improved so that the door can rotate while producing a certain displacement in a preset direction. However, the existing hinge structure is very complex, and the opening angle is limited by the hinge, resulting in a small opening degree, which is inconvenient for users.

[0004] In view of this, it is necessary to improve the existing hinges and the refrigeration devices with such hinges in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a hinge and a refrigeration device having the hinge.

[0006] To achieve the above-mentioned objective, the present invention provides a hinge for connecting a door to a housing; the hinge includes:

[0007] A fixed base is fixed to the housing, and the fixed base has a first sliding groove and a slider that is slidably connected to the first sliding groove.

[0008] A movable seat is fixed to the door body, and one end of the movable seat is connected to a hinge shaft;

[0009] A linkage component is provided between the slider and the movable seat. The linkage component includes a telescopic rod assembly, one end of which is rotatably connected to the fixed seat, and the other end is movably connected to the movable seat. The telescopic rod assembly has a non-extendable first state and a extendable second state. When the telescopic rod assembly is in the first state, as the movable seat rotates around the hinge axis, the linkage component drives the movable seat to move synchronously with the slider. When the telescopic rod assembly is in the second state, the movable seat can rotate in place around the hinge axis.

[0010] As a further improvement of the present invention, the telescopic rod assembly includes a connecting rod rotatably connected to the fixed base, and a telescopic rod slidably connected to the connecting rod along the length direction of the connecting rod; the linkage assembly further includes:

[0011] A first connecting rod, one end of which is rotatably connected to the hinge shaft, and the other end of which is rotatably connected to the slider;

[0012] The second link has one end rotatably connected to the slider and the other end rotatably connected to the connecting rod.

[0013] As a further improvement of the present invention, one of the telescopic rod and the second connecting rod is provided with a limiting groove, and the other is provided with a limiting block that cooperates with the limiting groove. After the linkage component drives the slider to move along a preset direction to one end of the first sliding groove, the limiting groove and the limiting block disengage, so that the telescopic rod assembly is in the second state.

[0014] As a further improvement of the present invention, the movable seat has a second slide groove extending along its length, and the telescopic rod assembly is movably connected within the second slide groove.

[0015] As a further improvement of the present invention, the movable seat is also provided with a clearance groove, which is an arc-shaped groove with the hinge shaft as the center, and the telescopic rod assembly is movably connected in the clearance groove.

[0016] As a further improvement of the present invention, when the linkage component is in the folded state, the movable seat, the telescopic rod group, the first connecting rod, and the second connecting rod are stacked.

[0017] As a further improvement of the present invention, the fixed base is also provided with a protrusion. After the linkage component drives the slider to move along a preset direction to one end of the first slide groove, the first connecting rod abuts against the protrusion to restrict the rotation of the first connecting rod.

[0018] As a further improvement of the present invention, the first slide groove extends along the length direction of the fixed seat, and the first slide groove has an outer end close to the hinge axis and an inner end away from the hinge axis. When the telescopic rod assembly is in the first state, during the process of the movable seat rotating around the hinge axis, the linkage component drives the slider to move from the outer end to the inner end, thereby driving the movable seat to move in the same direction.

[0019] As a further improvement of the present invention, the movable seat is provided with a docking post for engaging with the door body.

[0020] To achieve the above-mentioned objectives, the present invention also provides a refrigeration device, including a housing, a door, and the aforementioned hinge.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: In the linkage component of the hinge in the present invention, by providing a telescopic rod group, after the door is opened to the second state where the telescopic rod group is telescopic, the door body can freely rotate around the hinge axis, reducing the limitation on the opening degree of the door body and facilitating user use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the hinge in the first embodiment of the present invention;

[0023] Figure 2 is Figure 1 an enlarged view of part A in

[0024] Figure 3 is Figure 1 a schematic structural diagram of the hinge in after the movable seat is opened (the telescopic rod group is in the first state);

[0025] Figure 4 is Figure 1 a schematic structural diagram of the hinge in after the movable seat is opened (the telescopic rod group is in the second state);

[0026] Figure 5 is a schematic structural diagram of the hinge in the second embodiment of the present invention;

[0027] Figure 6 is a schematic structural diagram of the refrigeration device in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will describe the present invention in detail with reference to the specific embodiments shown in the Figure 1-6 drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present invention.

[0029] The terms used herein to represent relative spatial positions are for the purpose of facilitating the description of the relationship between one unit or feature and another unit or feature as shown in the drawings. The terms of relative spatial positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the figures. For example, if the device in the figures is flipped, the unit described as being "below" or "beneath" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the upper and lower orientations. The device may be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein will be interpreted accordingly.

[0030] Refer Figures 1-4As shown, the hinge 10 in the first embodiment of the present invention is used to connect the door to the cabinet. In this embodiment, the hinge 10 is applied to a vertical refrigerator and the refrigerator door is a left-right opening door for specific explanation.

[0031] Of course, it should be emphasized that the hinge 10 of this embodiment is not only applicable to refrigerators, but also to other scenarios, such as cabinets, wine cabinets, wardrobes, etc. This invention is illustrated by taking the application of the hinge 10 to a refrigerator as an example, but it is not limited thereto.

[0032] The hinge 10 includes a fixed base 1 for fixing to the housing, a movable base 2 for fixing to the door, and a linkage assembly 3. The fixed base 1 has a first sliding groove 11 and a slider 12 slidably connected to the first sliding groove 11. The movable base 2 has a hinge axis 21, and the movable base 2 can rotate around the hinge axis 21, so that the door fixed to the movable base 2 can rotate around the hinge axis 21 to open or close the housing. The linkage assembly 3 is disposed between the slider 12 and the movable base 2 to link the movable base 2 and the slider 12.

[0033] Specifically, the movable seat 2 has a linked state in which it rotates around the hinge axis 21 and moves synchronously with the slider 12, and a non-linked state in which it rotates only around the hinge axis 21. When the movable seat 2 and the slider 12 are in the linked state, when the movable seat 2 rotates around the hinge axis 21 to open, the linkage component 3 drives the movable seat 2 to move a preset distance with the slider 12; when the movable seat 2 and the slider 12 are in the non-linked state, the movable seat 2 can rotate freely in place around the hinge axis 21, and can control the movement trajectory of the door.

[0034] It is understood that the direction and preset distance of movement of the movable seat 2 driven by the linkage component 3 are related to the direction and distance of movement of the slider 12. The extension direction of the first slide groove 11, the movement direction of the slider 12, and the length of the first slide groove 11 can be designed according to specific needs. For example, to prevent the door from colliding with the wall / cabinet on the opening side when it is opened, the extension direction of the first slide groove 11 can be designed to extend in a direction perpendicular to the wall / cabinet on the opening side (extending in the length direction of the fixed seat 1), and the movement direction of the slider 12 when the door is opened is to move along the first slide groove 11 in a direction away from the wall / cabinet on the opening side. If the door is to move outwards in a direction away from the opening side to increase the opening degree, the extension direction of the first slide groove 11 can be designed to extend in a direction perpendicular to the wall / cabinet on the opening side (extending in the length direction of the fixed seat 1), and the movement direction of the slider 12 when the door is opened is to move along the first slide groove 11 in a direction towards the wall / cabinet on the opening side.

[0035] In this embodiment, the first slide groove 11 extends along the length of the fixed base 1. The end of the first slide groove 11 closest to the hinge axis 21 is defined as the outer end, and the end furthest from the hinge axis 21 is defined as the inner end. When the movable base 2 and the slider 12 are in a linked state, and the movable base 2 rotates open around the hinge axis 21 in a direction away from the fixed base 1, the slider 12 moves along the first slide groove 11 from the outer end to the inner end, causing the door to move inward. That is, the door moves inward a preset distance while rotating and opening, preventing collisions between the door and the wall or cabinet on the open side. Of course, this is not a limitation. In other embodiments, when the movable base 2 and the slider 12 are in a linked state, and the movable base 2 rotates open around the hinge axis 21 in a direction away from the fixed base 1, the slider 12 moves along the first slide groove 11 from the inner end to the outer end, causing the door to move outward. That is, the door moves outward a preset distance while rotating and opening, increasing the opening angle of the door and making it easier for the user to view the items inside the refrigerator.

[0036] Specifically, the preset distance by which the linkage component 3 moves the door can be adjusted by adjusting the length of the first slide groove 11.

[0037] It should be noted that "outer" refers to the outside of the refrigerator, while "inner" is a direction defined relative to "outer".

[0038] It is understood that when the hinge 10 is applied to a refrigerator with left and right doors, the length direction of the aforementioned fixing base 1 is the left-right direction, and the aforementioned outer end refers to the end of the first slide groove 11 corresponding to the opening side of the door. When the hinge 10 is applied to a refrigerator with top and bottom doors, the length direction of the aforementioned fixing base 1 is the top-bottom direction, and the aforementioned outer end refers to the end of the first slide groove 11 corresponding to the opening side of the door.

[0039] Specifically, the fixing base 1 includes a first plate 13 for fixing to the box body, a connecting plate 14 vertically disposed on the first plate 13, and the first sliding groove 11 disposed on the connecting plate 14.

[0040] The first plate 13 is fixed to the side of the box body facing the door so that the connecting plate 14 protrudes towards the door body.

[0041] It is understood that the position of the first slide groove 11 is set according to the relative positional relationship between the connecting plate 14 and the door body; that is, the first slide groove 11 is set on the side of the first plate 13 corresponding to the door body. For example, when the hinge 10 is installed at the bottom of the upright refrigerator and the door body is a left-right opening door, the door body is located above the hinge 10, therefore, the first slide groove 11 is set on the upper surface of the connecting plate 14.

[0042] Furthermore, the linkage component 3 has a folded state and an open state. When the movable seat 2 and the slider 12 are in the linkage state, during the process of the movable seat 2 rotating and opening around the hinge axis 21 in a direction away from the fixed seat 1, the linkage component 3 switches from the folded state to the open state, driving the slider 12 to move along the slide groove, and at the same time driving the movable seat 2 to move with the slider 12.

[0043] In this embodiment, when the linkage component 3 is in the folded state, the door is in the closed state. At this time, the movable seat 2 and the slider 12 are in a linkage state. When the door is opened, the movable seat 2 rotates around the hinge axis 21 in a direction away from the fixed seat 1. At the same time, the linkage component 3 switches from the folded state to the open state. That is, when the door is opened, the door rotates around the hinge axis 21 and moves inward synchronously with the slider 12 to prevent the door from colliding with the wall / cabinet on the open side during the opening process.

[0044] In one specific embodiment, the linkage component 3 includes a first connecting rod 31, a telescopic rod group 32, and a second connecting rod 33. The first connecting rod 31, the telescopic rod group 32, the second connecting rod 33, and the movable seat 2 form a four-bar linkage structure to realize the linkage between the slider 12 and the movable seat 2.

[0045] Specifically, one end of the first connecting rod 31 is rotatably connected to the hinge shaft 21, and the other end is rotatably connected to the slider 12. One end of the telescopic rod assembly 32 is rotatably connected to the fixed seat 1 at the end corresponding to the inner end, and the other end is movably connected to the movable seat 2. One end of the second connecting rod 33 is rotatably connected to the slider 12, and the other end is rotatably connected to the telescopic rod assembly 32. When the linkage assembly 3 is in the folded state, the first connecting rod 31, the telescopic rod assembly 32, the second connecting rod 33, and the movable seat 2 are stacked.

[0046] During the opening process, when the door body drives the movable seat 2 to rotate around the hinge axis 21, the linkage component 3 drives the slider 12 to move inward, causing the movable seat 2 to move inward, so that the door body moves inward to avoid the door body colliding with the wall or cabinet on the open side when the door is opened.

[0047] In one specific embodiment, the first connecting rod 31 and the second connecting rod 33 are rotatably connected to the slider 12 via the same pivot. Of course, this is not a limitation.

[0048] In one specific embodiment, the movable seat 2 is provided with a second sliding groove 22 extending along its length. The telescopic rod assembly 32 has a first rotating shaft 321 that cooperates with the second sliding groove 22. The cooperation between the first rotating shaft 321 and the second sliding groove 22 allows the telescopic rod assembly 32 to be movably connected to the movable seat 2. During the door opening process, when the movable seat 2 and the slider 12 are in a linked state, as the movable seat 2 continues to rotate around the hinge axis 21 to further open the door, the linkage component 3 drives the slider 12 to move inward. At the same time, the first rotating shaft 321 moves along the second sliding groove 22 towards the end of the second sliding groove 22 closer to the hinge axis 21. This reduces the rotation angle of the door during the inward movement of the door driven by the slider 12, enhancing the stability of the door movement. Of course, this is not a limitation. In other embodiments, the first rotating shaft 321 may also be configured to be rotatably connected only to the movable seat 2.

[0049] Furthermore, in this embodiment, the telescopic rod assembly 32 includes a connecting rod 322 rotatably connected to the fixed base 1, a telescopic rod 323 slidably connected to the connecting rod 322 along the length direction of the connecting rod 322, and the second connecting rod 33 rotatably connected to the connecting rod 322.

[0050] The telescopic rod assembly 32 has a non-extendable first state and a telescopic second state. When the telescopic rod assembly 32 is in the first state, the telescopic rod 323 and the connecting rod 322 cannot move relative to each other, and the movable seat 2 and the slider 12 can be in a linked state. During the rotation of the movable seat 2 around the hinge axis 21, the linkage component 3 drives the movable seat 2 to move synchronously with the slider 12. When the telescopic rod 323 is in the second state, the telescopic rod 323 can extend and retract relative to the connecting rod 322, and the movable seat 2 and the slider 12 are in a non-linked state, that is, the movable seat 2 can rotate in place around the hinge axis 21.

[0051] Specifically, in this embodiment, after the door is opened and the slider 12 moves to the inner end of the first slide groove 11, the telescopic rod assembly 32 switches from the first state to the second state. That is, during the rotation of the movable seat 2 around the hinge axis 21 away from the fixed seat 1, the telescopic rod assembly 32 is first in the first state and then in the second state. After the door body moves inward, the telescopic rod assembly 32 switches from the first state to the second state, and the movable seat 2 can rotate freely around the hinge axis 21 in place. That is, the door body can rotate freely around the hinge axis 21 in place to further open the door body, making it easier for the user to retrieve items. It can be understood that in the embodiment where the linkage component 3 includes the telescopic rod assembly 32, the second slide groove 22 provided on the movable seat 2 can increase the opening degree of the door body, making it easier for the user to retrieve items.

[0052] In one specific embodiment, one of the telescopic rod 323 and the second connecting rod 33 is provided with a limiting groove 3231, and the other is provided with a limiting block 331 that cooperates with the limiting groove 3231. When the limiting block 331 is located in the limiting groove 3231, the telescopic rod 323 is in a first state. After the limiting block 331 disengages from the limiting groove 3231, the telescopic rod 323 is in a second state.

[0053] Specifically, the limiting groove 3231 is an arc-shaped groove centered on the rotation center between the second connecting rod 33 and the telescopic rod assembly 32. When the linkage assembly 3 switches from the folded state to the open state, the limiting block 331 moves relative to the limiting groove 3231. After the slider 12 moves to the inner end of the first slide groove 11, the limiting block 331 disengages from the limiting groove 3231, so that the telescopic rod assembly 32 is in the second state. The movable seat 2 can rotate freely around the hinge axis 21 in place. That is, the door can rotate freely around the hinge axis 21 in place to further open the door and facilitate the user to take out items.

[0054] It is understandable that the cooperation between the limiting groove 3231 and the limiting block 331 can, on the one hand, enable the telescopic rod 323 to be in the first state, so that the movable seat 2 and the slider 12 can be in a linked state; on the other hand, it can enhance the stability of the relative movement between the first rotating shaft 321 and the second sliding groove 22, and enhance the stability of the hinge 10.

[0055] Furthermore, the fixed base 1 is also provided with a protrusion 15, which is located on the same side of the connecting plate 14 as the first sliding groove 11. After the linkage component 3 drives the slider 12 to move to the inner end, the first connecting rod 31 abuts against the protrusion 15 to restrict the rotation of the first connecting rod 31, thereby enhancing the stability of the door body to rotate freely in place around the hinge axis 21.

[0056] Furthermore, the hinge 10 also includes a docking post 5 disposed on the movable seat 2 for fixing the movable seat 2 relative to the door body, so as to realize docking with the corresponding structure on the door body and fix the movable seat 2 to the door body.

[0057] Further, please refer to Figure 6 As shown, the present invention also provides a refrigeration device 100, the refrigeration device 100 including a housing 20, a door 30 for opening and closing the housing 20, and a hinge 10 for connecting the housing 20 and the door 30.

[0058] The hinge 10 is the hinge 10 in the first embodiment of the present invention described above, and will not be described again here.

[0059] In this embodiment, the refrigeration device 100 is a vertical refrigerator with left and right doors. Of course, it should be emphasized that the refrigeration device 100 can also be a vertical refrigerator with top and bottom doors or a horizontal freezer, etc.

[0060] The opening and closing process of the refrigeration device 100 with the hinge 10 is described below:

[0061] When the door 30, which is in a closed state, is opened, the door 30 rotates around the hinge axis 21 in a direction away from the box 20, and at the same time moves inward a preset distance with the slider 12 under the action of the linkage component 3;

[0062] After the door body 30 has moved inward, the door body 30 can rotate freely in place around the hinge axis 21;

[0063] When the door 30 is closed from the open state, the door 30 first rotates around the hinge axis 21 in place toward the direction of the box 20 until the movable seat 2 and the slider 12 are in a linked state;

[0064] After the door is closed until the movable seat 2 and the slider 12 are in a linked state, the door 30 rotates around the hinge axis 21 in the direction closer to the box 20. At the same time, under the action of the linkage component 3, the door 30 moves outward a preset distance with the slider 12 and then the door 30 is in a closed state.

[0065] It is understood that the preset distance for the door body 30 to move inward and the preset distance for it to move outward can both be preset by adjusting the length of the first slide groove 11.

[0066] The completion of the inward movement of the aforementioned door body 30 means that the slider 12 moves to the inner end and the telescopic rod assembly 32 is in the second state.

[0067] The aforementioned closing of the door to the point where the movable seat 2 and the slider 12 are in a linked state means that when the door is closed, the telescopic rod assembly 32 switches from the second state to the first state, at which time the movable seat 2 and the slider 12 are in a linked state.

[0068] Please refer to Figure 5 As shown, the hinge 10a is shown in the second embodiment of the present invention. For ease of explanation, the structures in the second embodiment that are similar or the same as those in the first embodiment are given the same or similar numbers, and the structures in the second embodiment that are the same as those in the first embodiment will not be described again here.

[0069] The difference between the hinge 10a in the second embodiment of the present invention and the hinge 10 in the first embodiment is that the movable seat 2a is also provided with a clearance groove 23. The clearance groove 23 is an arc-shaped groove with the hinge shaft 21 as the center. The first rotating shaft 321 is movably connected in the clearance groove 23. Through the cooperation between the first rotating shaft 321 and the clearance groove 23, the movable seat 2a can rotate in place only around the hinge shaft 21, that is, it is in a non-linkage state.

[0070] In one specific embodiment, during the rotation of the movable seat 2a around the hinge axis 21 in a direction away from the fixed seat 1, the movable seat 2a is first in the non-linkage state and then in the linkage state. That is, the first rotating shaft 321 first cooperates with the clearance groove 23 to make the movable seat 2a rotate only around the hinge axis 21 in place, and then the movable seat 2a switches to the linkage state. Thus, when opening the door, the door body 30 can first rotate in place around the hinge axis 21 in a direction away from the box body 20 by a preset angle, and then, under the action of the linkage component 3, rotate and open while moving inward. In the final stage of closing the door, the door body 30 can first rotate in place around the hinge axis 21 in a direction closer to the box body 20 by a preset angle. This is suitable for door bodies 30 with a flip beam and makes it more convenient to open and close the door body 30.

[0071] It is understood that the aforementioned preset angle is determined by the length of the clearance groove 23.

[0072] In an embodiment where the second slide groove 22 is provided on the movable seat 2a, the clearance groove 23 is located at one end of the second slide groove 22 away from the hinge shaft 21, and the clearance groove 23 is connected to the second slide groove 22.

[0073] The hinge 10a in the second embodiment of the present invention is the same as the hinge 10 in the first embodiment except for the differences mentioned above, and will not be described again here.

[0074] Further, please refer to Figure 6 As shown, the present invention also provides a refrigeration device 100, the refrigeration device 100 including a housing 20, a door 30 for opening and closing the housing 20, and a hinge 10a for connecting the housing 20 and the door 30.

[0075] The hinge 10a is the hinge 10a in the second embodiment of the present invention described above, and will not be described again here.

[0076] In this embodiment, the refrigeration device 100 is a vertical refrigerator with left and right doors. Of course, it should be emphasized that the refrigeration device 100 can also be a vertical refrigerator with top and bottom doors or a horizontal freezer, etc.

[0077] The opening and closing process of the refrigeration device 100 with the hinge 10a is described below:

[0078] When the door 30, which is in a closed state, is opened, the door 30 first rotates in place around the hinge axis 21 by a preset angle;

[0079] After the door 30 rotates to a preset angle, the movable seat 2a is in a linked state. The door 30 continues to rotate around the hinge axis 21 in a direction away from the box 20, while the slider 12 moves inward a preset distance under the action of the linkage component 3.

[0080] After the door body 30 has moved inward, the door body 30 can rotate freely in place around the hinge axis 21;

[0081] When the door 30 is closed from the open state, the door 30 first rotates around the hinge axis 21 in place toward the direction of the box 20 until the movable seat 2a is in the linkage state;

[0082] After the door is closed until the movable seat 2a is in the linkage state, the door body 30 rotates around the hinge axis 21 in the direction closer to the box body 20. At the same time, under the action of the linkage component 3, it moves outward a preset distance with the slider 12 until the movable seat 2a is in the non-linkage state again.

[0083] After the movable seat 2a is in a non-linkage state again, the door 30 rotates in place around the hinge axis 21 toward the box 20 by a preset angle and then the door 30 is in a closed state.

[0084] It is understandable that during the opening process, the door body 30 mentioned above first rotates around the hinge axis 21 in place by a preset angle, that is, the door body 30 rotates around the hinge axis 21 in place until the first rotating shaft 321 enters the second sliding groove 22 from the clearance groove 23.

[0085] The preset distances for the inward and outward movement of the door 30 can be preset by adjusting the length of the first slide groove 11.

[0086] The completion of the inward movement of the aforementioned door body 30 means that the slider 12 moves to the inner end and the telescopic rod assembly 32 is in the second state.

[0087] The aforementioned closing of the door to the movable seat 2a being in a linked state means that closing the door to the telescopic rod assembly 32 switching from the second state to the first state.

[0088] The aforementioned movable seat 2a is again in a non-linkage state, that is, during the closing process, the first rotating shaft 321 enters the clearance groove 23 from the second sliding groove 22.

[0089] In summary, the linkage component 3 in the hinge 10 of the present invention, by setting the telescopic rod group 32, allows the door body 30 to rotate freely around the hinge axis after the door is opened and the telescopic rod group 32 is in the telescopic second state, thereby reducing the restriction on the opening degree of the door body 30 and making it easier for users to use.

[0090] It should be noted that the specific shaft groove design can effectively control the movement trajectory of the door 20. In this embodiment, when the door 20 is in the opening process, the hinge assembly 30 drives the door 20 to move from the pivot side P toward the receiving chamber S, thereby avoiding interference between the door 20 and surrounding cabinets or walls during the opening process.

[0091] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, for example, if the technologies in different embodiments can be used in combination to achieve the corresponding effects simultaneously, the solutions are also within the protection scope of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A hinge for connecting a door to a housing; characterized in that, The hinge includes: A fixed base is fixed to the housing, and the fixed base has a first sliding groove and a slider that is slidably connected to the first sliding groove. A movable seat is fixed to the door body, and one end of the movable seat is connected to a hinge shaft; A linkage component is provided between the slider and the movable seat. The linkage component includes a telescopic rod assembly, one end of which is rotatably connected to the fixed seat, and the other end is movably connected to the movable seat. The telescopic rod assembly has a non-extendable first state and a extendable second state. When the telescopic rod assembly is in the first state, as the movable seat rotates around the hinge axis, the linkage component drives the movable seat to move synchronously with the slider. When the telescopic rod assembly is in the second state, the movable seat can rotate in place around the hinge axis.

2. The hinge according to claim 1, characterized in that, The telescopic rod assembly includes a connecting rod rotatably connected to the fixed base, and a telescopic rod slidably connected to the connecting rod along its length; the linkage assembly further includes: A first connecting rod, one end of which is rotatably connected to the hinge shaft, and the other end of which is rotatably connected to the slider; The second link has one end rotatably connected to the slider and the other end rotatably connected to the connecting rod.

3. The hinge according to claim 2, characterized in that, One of the telescopic rod and the second connecting rod is provided with a limiting groove, and the other is provided with a limiting block that cooperates with the limiting groove. After the linkage component drives the slider to move along a preset direction to one end of the first sliding groove, the limiting groove and the limiting block disengage, so that the telescopic rod assembly is in the second state.

4. The hinge according to claim 1, characterized in that, The movable seat has a second slide groove extending along its length, and the telescopic rod assembly is movably connected within the second slide groove.

5. The hinge according to claim 1, characterized in that, The movable seat is also provided with a clearance groove, which is an arc-shaped groove with the hinge shaft as the center, and the telescopic rod assembly is movably connected in the clearance groove.

6. The hinge according to claim 2, characterized in that, When the linkage component is in the folded state, the movable seat, telescopic rod group, first connecting rod, and second connecting rod are stacked.

7. The hinge according to claim 2, characterized in that, The fixed base is also provided with a protrusion. After the linkage component drives the slider to move along a preset direction to one end of the first slide groove, the first connecting rod abuts against the protrusion to restrict the rotation of the first connecting rod.

8. The hinge according to claim 1, characterized in that, The first slide extends along the length of the fixed seat. The first slide has an outer end close to the hinge axis and an inner end away from the hinge axis. When the telescopic rod assembly is in the first state, during the rotation of the movable seat around the hinge axis, the linkage component drives the slider to move from the outer end to the inner end, thereby causing the movable seat to move in the same direction.

9. The hinge according to claim 1, characterized in that, The movable seat is equipped with a docking post for connecting with the door body.

10. A refrigeration device, comprising a housing and a door, characterized in that, The refrigeration device further includes a hinge as described in any one of claims 1-9.

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