Hinge device and refrigerator

Abstract

This invention discloses a hinge device and a freezer. The hinge device includes a lower hinge shell, an upper hinge shell, a first rotating part, and a second rotating part. The first rotating part includes a first groove and a first shaft, and the second rotating part includes a second groove and a second shaft. The upper hinge shell is rotatably connected to the lower hinge shell through the first and second rotating parts. The upper hinge shell rotates sequentially around the first and second shafts, and the door moves downwards while rotating. When the second shaft and the second groove reach their relative extreme positions, the first shaft and the first groove move relative to each other again. By alternating between sliding rolling motion and pure rolling motion, friction is reduced, the service life of the hinge is extended, and the door can move downwards more, reducing the space requirement of the door above the freezer. Even when there are wall cabinets or walls above, the door can be opened and moved downwards as much as possible to avoid obstacles.

Description

Technical Field

[0001] The present invention relates to a hinge device, and more particularly to a refrigerator having the hinge device. Background Technology

[0002] Existing freezers such as Figure 1 As shown, the freezer door rotates upwards to open, revealing the opening of the lower compartment. During use, users may have various needs due to limitations of the environment. When the freezer is used in a confined space, the opening of the door is more restricted. For example, if the freezer is located in a small attic or mezzanine, or if the overhead cabinets are low, the upward opening of the door is limited, restricting the opening angle and limiting the user's ability to retrieve food. Therefore, in such space-constrained environments, the placement of the freezer is limited.

[0003] However, in solving the problem of placing freezers in confined spaces, the new structure introduces new challenges, such as how to extend the lifespan of the hinges to meet expectations. How to solve existing problems and how to prevent the new structure from creating new ones are issues that existing freezers need to address. Summary of the Invention

[0004] To address the problems in the prior art, the present invention aims to provide a hinge device and a refrigerator having the hinge device.

[0005] To achieve the above-mentioned objective, one embodiment of the present invention provides a hinge device, comprising:

[0006] The lower hinge housing is used to connect the housing;

[0007] Upper hinge housing, used to connect the door body;

[0008] The first rotating part includes a first groove and a first shaft, wherein the first groove defines the sliding distance of the first shaft;

[0009] The second rotating part includes a second groove and a second shaft. The second groove defines the sliding distance of the second shaft. The upper hinge shell is rotatably connected to the lower hinge shell through the first rotating part and the second rotating part.

[0010] The upper hinge shell has a first position, a second position, and a third position. During the process of the upper hinge shell moving from the first position to the second position, the upper hinge shell rotates around the first axis; during the process of the upper hinge shell moving from the second position to the third position, the upper hinge shell rotates around the second axis.

[0011] During at least a portion of the rotation of the upper hinge shell around the lower hinge shell, the upper hinge shell simultaneously moves in a first direction, which has a downward component.

[0012] As a further improvement of the present invention, it also includes an elastic support portion, comprising a fixed end fixedly connected to the lower hinge shell, a receiving end connected to the first rotating portion or the second rotating portion, and an elastic support member disposed between the fixed end and the receiving end.

[0013] As a further improvement of the present invention, the elastic support includes a support beam, a support rod, and an elastic element sleeved on the outside of the support rod. The support beam includes a fixed end connected to the lower hinge shell. One end of the elastic element is fixed to the support beam, and the other end abuts against the support rod.

[0014] As a further improvement of the present invention, the support rod includes the receiving end connected to the first shaft or the second shaft.

[0015] As a further improvement of the present invention, the first shaft is disposed in the upper hinge shell, the first groove is disposed in the lower hinge shell, and the elastic support portion further includes a linkage portion, the linkage portion comprising:

[0016] A sliding shaft is slidably connected to the lower hinge housing and parallel to the first shaft body;

[0017] A connector, comprising a receiving end pivotally connected to the first shaft, and the connector also pivotally connected to the sliding shaft;

[0018] A limiting part is provided on the lower hinge housing and limits the movement direction of the sliding shaft.

[0019] As a further improvement of the present invention, the first rotating part or the second rotating part further includes a third shaft parallel to the first shaft and the second shaft, and the third shaft is fixedly connected to the upper hinge shell;

[0020] The elastic support portion further includes a linkage portion, the linkage portion comprising:

[0021] A sliding shaft is slidably connected to the lower hinge housing and parallel to the third shaft.

[0022] A connector, comprising a receiving end pivotally connected to the third shaft, and the connector also pivotally connected to the sliding shaft;

[0023] A limiting part is provided on the lower hinge housing and limits the movement direction of the sliding shaft.

[0024] As a further improvement of the present invention, the first groove and the second groove are disposed in one of the lower hinge shell or the upper hinge shell, and the first shaft and the second shaft are disposed in the other of the lower hinge shell or the upper hinge shell.

[0025] As a further improvement of the present invention, the first groove and the second shaft are disposed in one of the lower hinge shell or the upper hinge shell, and the first shaft and the second groove are disposed in the other of the lower hinge shell or the upper hinge shell.

[0026] As a further improvement of the present invention, the first shaft is parallel to the second shaft, and the first shaft and / or the second shaft is located in front of the first preset surface. The first preset surface is a plane that passes through the lower rear end of the door and slopes downwards and backwards. The angle between the first preset surface and the horizontal plane is 45°.

[0027] To achieve one of the above-mentioned objectives, one embodiment of the present invention provides a freezer including the aforementioned hinge device.

[0028] As a further improvement of the present invention, it also includes a housing connected to the lower hinge shell and a door connected to the upper hinge shell. The housing includes a rear wall, and the door has a closed state and a fully open state. When the upper hinge shell is in the first position, the door is in the closed state, and when the upper hinge shell is in the third position, the door is in the fully open state.

[0029] Compared with the prior art, the present invention has the following beneficial effects: When the door of the freezer using this hinge device is opened, after the second shaft and the second groove move relative to each other to their limit positions, the first shaft and the first groove move relative to each other. This makes the dimensions of the first groove and the second groove shorter than those of existing grooves. Consequently, the first shaft and the first groove, as well as the second shaft and the second groove, do not need to be in a state of sliding rolling friction all the time. Instead, they alternate between sliding rolling motion and pure rolling motion, reducing friction and extending the service life of the hinge. At the same time, the door moves downwards, thereby reducing the space required above the freezer when the door is fully open. Even when there are wall cabinets or other obstacles above, the door can move downwards as much as possible to avoid them when it is opened. This reduces the impact of insufficient space above the freezer on the door opening angle, improves the user experience, expands the usage scenarios of the freezer, and thus increases the sales of the freezer. Attached Figure Description

[0030] Figure 1 This is a side view of an existing freezer;

[0031] Figure 2This is a side view of a freezer according to an embodiment of the present invention;

[0032] Figure 3 This is a side view comparing an existing refrigerator door with an embodiment of the present invention when the refrigerator door is opened;

[0033] Figure 4a This is a schematic diagram of the structure of a hinge device according to an embodiment of the present invention;

[0034] Figure 4b This is a cross-sectional view of a hinge device according to an embodiment of the present invention;

[0035] Figure 5a This is a schematic diagram of the structure of a hinge device according to an embodiment of the present invention;

[0036] Figure 5b This is a cross-sectional view of a hinge device according to an embodiment of the present invention;

[0037] Figure 6a This is a schematic diagram of the structure of a hinge device according to an embodiment of the present invention;

[0038] Figure 6b This is a cross-sectional view of a hinge device according to an embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the hinge device according to another embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of the hinge device according to another embodiment of the present invention;

[0041] Among them, 1000 is the freezer; 100 is the hinge device; 200 is the door; 300 is the cabinet; 10 is the upper hinge shell; 20 is the lower hinge shell; 31 is the first shaft; 32 is the first groove; 41 is the second shaft; 42 is the second groove; 50 is the connector; 61 is the sliding shaft; 62 is the limiting part; 71 is the support rod; 72 is the elastic element; 73 is the support beam; and 80 is the third shaft. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0043] It should be understood that terms such as “above,” “over,” “below,” and “under” used herein to indicate spatial relative position are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative position” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0044] One embodiment of the present invention provides a hinge device and a refrigerator having the hinge device. By redesigning the hinge structure, the door can be controlled to move downwards during the opening process, thus avoiding some obstacles above, reducing the requirement for reserved space above, making it suitable for more usage environments, and avoiding the reduction in service life caused by structural changes.

[0045] The hinge device 100 can be installed on equipment such as freezer 1000, refrigerator, upright freezer, wine cabinet, dishwasher, and microwave oven. In this embodiment, a freezer 1000 is provided, including a door 200 and a cabinet 300. The cabinet 300 encloses a refrigeration space, and the door 200 closes the refrigeration space. The door 200 and the cabinet 300 are connected by the hinge device 100, which supports the opening and closing of the door 200.

[0046] The hinge device 100 of this embodiment includes a lower hinge shell 20, an upper hinge shell 10, a first rotating part, a second rotating part, and an elastic support part. The first rotating part includes a first groove 32 and a first shaft 31, the first groove 32 defining the sliding distance of the first shaft 31; the second rotating part includes a second groove 42 and a second shaft 41, the second groove 42 defining the sliding distance of the second shaft 41, and the upper hinge shell 10 is rotatably connected to the lower hinge shell 20 through the first rotating part and the second rotating part.

[0047] The upper hinge shell 10 is fixedly connected to the door body 200, and the lower hinge shell 20 is fixedly connected to the box body 300, as follows. Figure 2 As shown, to clearly express the positions and directions described in this embodiment, a horizontal freezer 1000 is used as an example. The opening of the freezer body 300 is defined as facing upwards, and the opposite direction is defined as downwards. The door 200 is located above the body 300. The user operates the freezer 1000 from the side of the body 300 away from the hinge device 100. The user is defined as being in front of the freezer 1000, and the hinge device 100 is located behind the body 300. The two sides facing the body 300 from the front are defined as left and right, respectively.

[0048] The first shaft 31 can slide a certain distance within the first groove 32, and the second shaft 41 can slide a certain distance within the second groove 42. That is to say, the first groove 32 and the second groove 42 are not a circular groove, but rather a groove with a certain length, such as... Figures 4a-8As shown, the shaft can move from one end of the groove to the other. During the sliding process of the first shaft 31 and the second shaft 41, the upper hinge shell 10 is rotated around the lower hinge shell 20. During the entire rotation process, the upper hinge shell 10 does not always simply rotate around the first shaft 31 or the second shaft 41, but is simultaneously restricted by the first shaft 31, the first groove 32, the second shaft 41 and the second groove 42 to rotate.

[0049] In addition, the first shaft 31 and the second shaft 41 in this embodiment are only distinguished by name. Similarly, the first groove 32 and the second groove 42 are also distinguished by name, used to describe the existence of two shafts that can slide a certain distance within the groove. The second shaft 41 can also be called the first shaft 31, and the second groove 42 can also be called the first groove 32.

[0050] The upper hinge shell 10 has a first position, a second position and a third position. During the process of the upper hinge shell 10 moving from the first position to the second position, the upper hinge shell 10 rotates around the first axis 31; during the process of the upper hinge shell 10 moving from the second position to the third position, the upper hinge shell 10 rotates around the second axis 41. Figure 4a and 4b Corresponding to the first position, Figure 5a and 5b Corresponding to the second position, Figure 6a and 6b Corresponding to the third position, when the upper hinge shell 10 is in the third position, the door 200 can be in the fully open state.

[0051] During the movement of the upper hinge shell 10 from the first position to the second position, the first shaft 31 rotates only in place, performing pure rolling motion, while the second shaft 41 moves from one end to the other within the second groove 42. During the movement of the upper hinge shell 10 from the second position to the third position, the second shaft 41 rotates only in place, performing pure rolling motion, while the first shaft 31 moves from one end to the other within the first groove 32. The above process divides the entire movement into two segments. In each segment, the wear of one of the shafts that remains in place is minimized. That is, during the opening of the door 200, the two shafts do not need to perform a combined sliding and rolling motion, thereby reducing wear and extending service life.

[0052] During at least a portion of the rotation of the upper hinge shell 10 around the lower hinge shell 20, the upper hinge shell 10 can simultaneously move in the designed direction, and the shapes of the first groove 32 and the second groove 42 are designed according to the needs of the movement trajectory of the upper hinge shell 10.

[0053] During at least a portion of the rotation of the upper hinge shell 10 around the lower hinge shell 20, the upper hinge shell 10 simultaneously moves in a first direction, which has a downward component. This first direction is the direction of the box 300 relative to the door 200 when the door 200 is closed. As the door 200 flips open, it also moves downward. The trajectory of the door 200 is a superposition of two movements: upward rotation and downward translation.

[0054] The first shaft 31 and / or the second shaft 41 are located in front of the first preset surface, which is a plane that passes through the lower rear end of the door body 200 and slopes downwards and backwards. The angle between the first preset surface and the horizontal plane is 45°. Figure 3 As shown in the figure, the dotted line represents the position of the existing door after it is opened. When the position of the instantaneous center of rotation is moved to the front of the first preset surface, the door 200 of this embodiment can be driven to move downward more than the existing door.

[0055] by Figure 1 Taking existing hinges as an example, when existing hinges are installed on a freezer, the distance from any point on the door to the upper surface of the freezer is h when the door is fully opened. However, in this embodiment, the door 200 is controlled to move downwards simultaneously during the flipping process. Figures 2-3 As shown, when the door 200 is opened, the distance from any point on the door 200 to the upper surface of the box 300 is reduced by h1. That is, in this embodiment, when the door 200 is opened, the distance from any point on the door 200 to the upper surface of the box 300 is h-h1. (See also the attached diagram.) Figure 3 The before-and-after comparison shows that the dashed line in the figure represents the existing door position, while the solid line represents door 200 in this embodiment. Figure 3 The center of the circle in the figure is the location of the instantaneous center of rotation. In this embodiment, the door 200 moves downward more than the existing door, which reduces the space requirement of the door 200 above the freezer 1000. When there are hanging cabinets or walls above, the door 200 can also move downward as much as possible to avoid obstacles when it is opened, which reduces the impact of insufficient reserved space above the freezer 1000 on the opening angle of the door 200.

[0056] like Figures 4a-6b As shown, the hinge device 100 rotates sequentially from the initial position to the position where the upper hinge shell 10 is fully open. When the upper hinge shell 10 is flipped into place, compared to the existing hinge that makes a pure rotation, the upper hinge shell 10 in this embodiment moves downward a certain distance, that is, it moves downward while opening the door 200.

[0057] In addition, the elastic support includes a fixed end fixedly connected to the lower hinge shell 20, a receiving end connected to the first rotating part or the second rotating part, and an elastic support member disposed between the fixed end and the receiving end. One end of the elastic support member is supported by the fixed end, and the other end is connected to the first rotating part or the second rotating part, which can support it and play the role of supporting the door body 200 to be suspended.

[0058] With the support of the fixed end, the sliding end of the elastic support moves parallel to the connecting plate of the box 300 as the sliding shaft 61 moves, thus avoiding movement in the direction perpendicular to the connecting plate of the box 300, reducing the required internal space, and allowing the hinge to be thinner. During the upward opening of the door 200, the downward force of the door 200 is applied to the first rotating part and the second rotating part. The elastic support is connected to the first rotating part or the second rotating part and supports it.

[0059] Furthermore, such as Figures 4a-6b As shown, the elastic support includes a support beam 73, a support rod 71, and an elastic element 72 sleeved on the outside of the support rod 71. The support beam 73 includes a fixed end connected to the lower hinge shell 20. One end of the elastic element 72 is fixed to the support beam 73, and the other end abuts against the support rod 71. The two ends of the support beam 73 are respectively connected to a pair of opposite side walls of the lower hinge shell 20. An opening is provided in the support beam 73, through which the support rod 71 passes. The elastic element 72 can be a spring, and support sleeves can be provided at both the upper and lower ends of the spring. Figure 4a As shown, the lower support sleeve abuts against the support beam 73 around the opening, and the upper support sleeve abuts against the protrusion extending from the support rod 71.

[0060] The spring is always in a compressed state. Under the elastic action of the spring, when the upper hinge shell 10 flips upward, the support rod 71 moves upward under the drive of the spring. The spring releases part of the elastic force, and the spring is still in a compressed state, so it can support the opening of the upper hinge shell 10, which makes opening the door easier and supports the suspension of the door body 200.

[0061] The specific structure of the elastic support can be implemented in several ways:

[0062] In one embodiment:

[0063] like Figures 4a-6bAs shown, the first rotating part or the second rotating part further includes a third shaft 80 parallel to the first shaft 31 and the second shaft 41. The third shaft 80 is fixedly connected to the upper hinge shell 10. The elastic support part further includes a linkage part, which includes a sliding shaft 61, a connecting member 50 and a limiting part 62. The sliding shaft 61 is slidably connected to the lower hinge shell 20 and parallel to the third shaft 80. The connecting member 50 includes a receiving end that is pivotally connected to the third shaft 80, and the connecting member 50 is also pivotally connected to the sliding shaft 61. The limiting part 62 is disposed in the lower hinge shell 20 and limits the movement direction of the sliding shaft 61.

[0064] In this embodiment, the spring force is first released to the upper hinge shell 10 through the third shaft 80, and then the force is released by the first shaft 31 and the second shaft 41. The force on the first shaft 31 and the second shaft 41 is more even, and the force shared by each shaft is smaller. This embodiment has relatively low requirements for material strength.

[0065] In another implementation:

[0066] like Figure 7 As shown in Figure 8, the first shaft 31 is disposed on the upper hinge shell 10, the first groove 32 is disposed on the lower hinge shell 20, and the elastic support part also includes a linkage part, which includes a sliding shaft 61, a connecting member 50 and a limiting part 62. The sliding shaft 61 is slidably connected to the lower hinge shell 20 and parallel to the first shaft 31. The connecting member 50 includes a receiving end that is pivotally connected to the first shaft 31, and the connecting member 50 is also pivotally connected to the sliding shaft 61. The limiting part 62 is disposed on the lower hinge shell 20 and limits the movement direction of the sliding shaft 61. The connector 50 has two sets of round holes. The first shaft 31 passes through one set of round holes, and the sliding shaft 61 passes through the other set of round holes. Both the first shaft 31 and the sliding shaft 61 can rotate within the round holes. When the support rod 71 moves upward under the action of the spring, it pushes the sliding shaft 61 to move upward along the limiting part 62. The sliding shaft 61 pushes the connector 50 to move. The connector 50 connects to the first shaft 31 and drives the first shaft 31 to move, thereby supporting the movement of the upper hinge shell 10.

[0067] The limiting part 62 is configured as a pair of straight grooves on the opposite sidewalls of the lower hinge housing 20, with the grooves extending in the vertical direction. The sliding shaft 61 moves up and down within the vertical grooves. Alternatively, the limiting part 62 can also be provided on the bottom wall connecting the two sidewalls.

[0068] In this embodiment, the force is first transmitted to the first shaft 31 and then released to the second shaft 41 through the upper hinge shell 10, so that the force on the first shaft 31 is greater than that on the second shaft 41, thereby requiring higher material strength for the first shaft 31.

[0069] In both of the above embodiments, the support rod 71 can perform linear motion in the up-down direction.

[0070] In other implementations:

[0071] The support rod 71 includes a direct receiving end connected to the first shaft 31 or the second shaft 41. In this embodiment, the support rod 71 swings back and forth while moving up and down. However, the sliding shaft 61, the limiting part 62 and the connecting part 50 are eliminated, so the structure is simpler. However, the back and forth swing of the support rod 71 increases the thickness of the hinge.

[0072] Furthermore, there are various embodiments regarding the specific connection method between the first rotating part and the second rotating part:

[0073] In one embodiment:

[0074] like Figures 4a-7 As shown, the first groove 32 and the second groove 42 are disposed in one of the lower hinge shell 20 or the upper hinge shell 10, and the first shaft 31 and the second shaft 41 are disposed in the other of the lower hinge shell 20 or the upper hinge shell 10. At this time, the structural layout is clear.

[0075] When both the first groove 32 and the second groove 42 are located on the upper hinge shell 10, such as Figures 4a-6b As shown, the first shaft 31 and the second shaft 41 are both mounted on the lower hinge shell 20 and pass through the groove on the upper hinge shell 10 between them. They can extend outward from both sides of the upper hinge shell 10, or they can pass through the upper hinge shell 10 as shown in the figure.

[0076] When both the first groove 32 and the second groove 42 are located on the lower hinge shell 20, such as Figure 7 As shown, the first shaft 31 and the second shaft 41 are both mounted on the upper hinge shell 10 and can extend outward from both sides of the upper hinge shell 10, or can penetrate the upper hinge shell 10 as shown in the figure.

[0077] In another implementation:

[0078] like Figure 8 As shown, the first groove 32 and the second shaft 41 are disposed in one of the lower hinge shell 20 or the upper hinge shell 10, and the first shaft 31 and the second groove 42 are disposed in the other of the lower hinge shell 20 or the upper hinge shell 10. Unlike the previous embodiment, this reduces the need to open another groove near a groove. Conversely, if two grooves are opened on a plate at the same time, on the one hand, the distance between the two grooves cannot be too close, otherwise deformation and failure will occur at the closest position; on the other hand, the material strength requirements are very high to prevent deformation.

[0079] In this embodiment, for example, a first groove 32 is formed on the upper hinge shell 10 and a second groove 42 is formed on the lower hinge shell 20. The two grooves are formed on the two plates respectively. On the one hand, there is no problem that the two grooves cannot be too close together. In this way, the hinge device 100 can be made thinner. On the other hand, since there are fewer holes drilled on each plate, the support effect is better and it is not easy to deform. The requirements for the material strength of the hinge device 100 are reduced.

[0080] Compared with the prior art, this embodiment has the following beneficial effects:

[0081] When the door 200 of the freezer 1000 using this hinge device 100 is opened, after the second shaft 41 and the second groove 42 move relative to each other to their limit positions, the first shaft 31 and the first groove 32 move relative to each other. This makes the first groove 32 and the second groove 42 shorter than the existing groove dimensions. Consequently, the first shaft 31 and the first groove 32, as well as the second shaft 41 and the second groove 42, do not need to be in a state of sliding rolling friction at all times. Instead, the sliding rolling motion is between sliding rolling motion and pure rolling motion. Alternating operation reduces friction and extends the lifespan of the hinges. Simultaneously, it causes the door 200 to move downwards, thus reducing the space requirement of the door 200 above the freezer 1000 when the door 200 is fully open. Even when there are wall cabinets or other obstructions above, the door 200 can move downwards as much as possible to avoid these obstacles. This reduces the impact of insufficient space above the freezer 1000 on the opening angle of the door 200, improves the user experience, expands the usage scenarios of the freezer 1000, and ultimately increases the sales of the freezer 1000.

[0082] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0083] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A hinge device, characterized in that, It includes: The lower hinge housing is used to connect the housing; Upper hinge housing, used to connect the door body; The first rotating part includes a first groove and a first shaft, wherein the first groove defines the sliding distance of the first shaft; The second rotating part includes a second groove and a second shaft. The second groove defines the sliding distance of the second shaft. The upper hinge shell is rotatably connected to the lower hinge shell through the first rotating part and the second rotating part. The first shaft is parallel to the second shaft. The first shaft and / or the second shaft is located in front of a first preset surface. The first preset surface is a plane that passes through the lower rear end of the door and slopes downwards and backwards. The upper hinge shell has a first position, a second position, and a third position. During the process of the upper hinge shell moving from the first position to the second position, the upper hinge shell rotates around the first axis, the first axis rotates in place, and the second axis moves from one end to the other end within the second groove. During the process of the upper hinge shell moving from the second position to the third position, the upper hinge shell rotates around the second axis, the second axis rotates in place, and the first axis moves from one end to the other end within the first groove. During at least a portion of the rotation of the upper hinge shell around the lower hinge shell, the upper hinge shell simultaneously moves in a first direction, which has a downward component.

2. The hinge device according to claim 1, characterized in that, It also includes an elastic support portion, comprising a fixed end fixedly connected to the lower hinge shell, a receiving end connected to the first rotating portion or the second rotating portion, and an elastic support member disposed between the fixed end and the receiving end.

3. The hinge device according to claim 2, characterized in that, The elastic support includes a support beam, a support rod, and an elastic element sleeved on the outside of the support rod. The support beam includes a fixed end connected to the lower hinge shell. One end of the elastic element is fixed to the support beam, and the other end abuts against the support rod.

4. The hinge device according to claim 3, characterized in that, The support rod includes the receiving end connected to the first shaft or the second shaft.

5. The hinge device according to claim 2, characterized in that, The first shaft is disposed on the upper hinge shell, the first groove is disposed on the lower hinge shell, and the elastic support portion further includes a linkage portion, the linkage portion comprising: A sliding shaft is slidably connected to the lower hinge shell and parallel to the first shaft body; A connector, comprising a receiving end pivotally connected to the first shaft, and the connector also pivotally connected to the sliding shaft; A limiting part is provided on the lower hinge housing and limits the movement direction of the sliding shaft.

6. The hinge device according to claim 2, characterized in that, The first rotating part or the second rotating part further includes a third shaft parallel to the first shaft and the second shaft, and the third shaft is fixedly connected to the upper hinge shell; The elastic support portion further includes a linkage portion, the linkage portion comprising: A sliding shaft is slidably connected to the lower hinge housing and parallel to the third shaft. A connector, comprising a receiving end pivotally connected to the third shaft, and the connector also pivotally connected to the sliding shaft; A limiting part is provided on the lower hinge housing and limits the movement direction of the sliding shaft.

7. The hinge device according to claim 1, characterized in that, The first groove and the second groove are disposed in one of the lower hinge shell or the upper hinge shell, and the first shaft and the second shaft are disposed in the other of the lower hinge shell or the upper hinge shell.

8. The hinge device according to claim 1, characterized in that, The first groove and the second shaft are disposed in one of the lower hinge shell or the upper hinge shell, and the first shaft and the second groove are disposed in the other of the lower hinge shell or the upper hinge shell.

9. The hinge device according to claim 1, characterized in that, The angle between the first preset surface and the horizontal plane is 45°.

10. A freezer, characterized in that, Includes the hinge device as described in any one of claims 1 to 9.

11. The freezer according to claim 10, characterized in that, It also includes a housing connected to the lower hinge shell and a door connected to the upper hinge shell. The door has a closed state and a fully open state. When the upper hinge shell is in the first position, the door is in the closed state. When the upper hinge shell is in the third position, the door is in the fully open state.

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