Hinge and refrigerator comprising the same

Abstract

The utility model provides a hinge and contain its refrigerator, hinge is used for the opening and closing of the door body of refrigerator, hinge includes: first fixed base for installing on the cabinet of refrigerator, second fixed base is installed on the door body, the transmission assembly is hinged between first fixed base and second fixed base, the buffer assembly is arranged between first fixed base and transmission assembly, buffer assembly has first end and second end along the buffer direction, and the second end of buffer assembly has a plurality of buffer positions, wherein, the first end of buffer assembly is arranged in one of first fixed base and transmission assembly, and a plurality of buffer positions are used for simultaneously or sequentially acting on the other one of first fixed base and transmission assembly in the closing process of door body, the setting not only improves the buffer effect to the door body speed, but also can stage the door body speed buffering, further reduces the instantaneous impact of door body to cabinet, prevents the sudden change of door body speed to cause the damage of the door body and cabinet of refrigerator.

Description

Technical Field

[0001] This utility model relates to the field of refrigerators, and in particular to a hinge and a refrigerator including the hinge. Background Technology

[0002] Refrigerator hinges are currently the most commonly used connecting parts for opening and closing refrigerator doors. To ensure good closure performance between the refrigerator door and the refrigerator body after opening or closing, existing refrigerator hinges typically employ a six-bar linkage mechanism. Inside the six-bar hinge, there is often an additional spring module. Its function is to assist the door in automatically closing when the opening angle of the refrigerator door is less than a certain degree, and also to provide a certain sealing force. However, if the hinge only contains a spring structure, the impact when the door closes due to the spring's self-resetting mechanism is relatively large, which can generate noise and, in severe cases, damage the door. Therefore, a buffer module is generally needed to ensure a smooth and slow closure when the door is forcefully closed by the user or when the spring automatically closes.

[0003] Patent CN202120208627.1 describes a damping hinge with a buffer function, but this structure has certain shortcomings.

[0004] The main drawbacks of existing technologies are as follows:

[0005] Disadvantage 1: In this patent, the function mainly relies on a rod. When the hinge is about to close, the rod hits the damping buffer placed in the upper left corner to achieve the buffering function. However, simulation tools show that the above-mentioned rod is the one that bears the greatest weight of the door during the opening and closing process. It can also be seen that the rod has obvious weak points. If the collision between this rod and the buffer is still chosen to achieve the damping function, the strength of the rod is questionable.

[0006] Disadvantage 2: Due to space constraints, the damping size used in this structure is small and the stroke is short. During use, there are sudden changes in the speed of the gate, and it is impossible to achieve a linear buffering effect during the closing process. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the defect that the sudden change in the closing speed of the refrigerator door in the prior art will cause damage to the refrigerator door and cabinet, and to provide a hinge and a refrigerator including the hinge.

[0008] The present invention solves the above-mentioned technical problems through the following technical solution:

[0009] A hinge for opening and closing a refrigerator door, the hinge comprising:

[0010] The first mounting bracket is used for installation on the refrigerator body;

[0011] The second fixing seat is used for installation on the door body;

[0012] A transmission assembly is hinged between a first fixed seat and a second fixed seat. The transmission assembly is configured to drive the second fixed seat to fold towards the first fixed seat and be fitted onto the first fixed seat during the closing process of the door.

[0013] The hinge includes a buffer assembly disposed between the first fixed seat and the transmission assembly. The buffer assembly has a first end and a second end along the buffering direction, and the second end of the buffer assembly has multiple buffer positions.

[0014] The first end of the buffer assembly is located in one of the first fixed seat and the transmission assembly, and multiple buffer positions are used to act simultaneously or sequentially on the other of the first fixed seat and the transmission assembly during the closing process of the door.

[0015] In this design, when multiple buffer positions act simultaneously on the first fixed seat and another component of the transmission assembly during the door closing process, this increases the buffer area between the buffer assembly and the first fixed seat or transmission assembly, which helps to improve the buffering effect on the refrigerator door speed and prevents sudden changes in refrigerator door speed from damaging the refrigerator body and door. When multiple buffer positions act sequentially on the first fixed seat and another component of the transmission assembly during the door closing process, this setting not only improves the buffering effect on the refrigerator door speed, but also buffers the refrigerator door speed in stages, further reducing the instantaneous impact of the refrigerator door on the refrigerator body, thus preventing sudden changes in refrigerator door speed from damaging the door and body.

[0016] Preferably, the buffer assembly includes a plurality of buffer members spaced apart, with the first end of the plurality of buffer members disposed in one of the first fixed base and the transmission assembly, and the second end of the plurality of buffer members used to provide a plurality of buffer positions;

[0017] And / or, the transmission assembly includes a first transmission rod, a second transmission rod, a third transmission rod, and a fourth transmission rod; the first end of the first transmission rod is hinged to a first fixed seat, the second end of the first transmission rod is hinged to the first end of the second transmission rod, the second end of the second transmission rod is hinged to the middle of the second fixed seat, the first end of the third transmission rod is hinged to the first fixed seat, the second end of the third transmission rod is hinged to the middle of the second transmission rod, the first end of the fourth transmission rod is hinged to the middle of the third transmission rod, and the second end of the fourth transmission rod is hinged to one end of the second fixed seat; wherein, a buffer is disposed between the first transmission rod and the first fixed seat, and the third transmission rod is rotatable and foldable along the hinge point so that the second fixed seat is folded toward the first fixed seat and fitted onto the first fixed seat.

[0018] In this design, the multiple buffer components are spaced apart, making their positions more dispersed. Therefore, when the buffer components cushion the refrigerator door, the force on the buffer assembly is also more dispersed, which helps to prevent the impact force of the refrigerator door on the refrigerator body from being too concentrated and causing damage to the refrigerator body. In addition, the above-mentioned arrangement of the buffer assembly prevents the buffer assembly from acting on the third transmission rod, which bears the greatest weight of the door, during the opening and closing of the door, thus preventing damage to the third transmission rod.

[0019] Preferably, the first end of the buffer is mounted on the first fixed seat, the second end of the buffer is a free end, and the buffer has an active state in which the buffering function is activated and an inactive state in which the buffering function is not activated.

[0020] During the closing process of the door, the buffer is used to switch from an inactive state to an active state when the transmission component moves to abut against the second end of the buffer.

[0021] In this design, the second end of the buffer is a free end, which is not restricted and facilitates sufficient buffering of the refrigerator door when it is closed. In addition, the buffer is used to switch from an inactive state to an active state when the transmission component moves to abut against the second end of the buffer. That is, when the transmission component moves to abut against the second end of the buffer, the buffer begins to be active, which means that the buffering of the transmission component is timely and helps to decelerate the refrigerator door in a timely manner.

[0022] Preferably, the transmission assembly has a receiving groove at one end near the first fixed seat, the receiving groove being used to accommodate multiple buffer components;

[0023] The buffer is used to switch from an inactive state to an active state when the transmission assembly moves to the bottom of the receiving groove and abuts against the second end of the buffer.

[0024] In this design, a receiving groove is provided at one end of the transmission component near the first fixed seat. The receiving groove is used to accommodate multiple buffer components. This arrangement is beneficial for improving space utilization by utilizing the transmission component, making the hinge more compact and stable, and enabling the buffer components to have a larger buffer stroke within a limited space. In addition, the receiving groove helps prevent the buffer components from tilting or shaking, which would affect their buffering function. Moreover, the contact area between the buffer component and the bottom of the groove is relatively large, resulting in a larger buffering area and thus a better buffering effect.

[0025] Preferably, the buffer has a buffer rod and a buffer sleeved on the second end of the buffer rod, and the first fixed seat has a mounting hole, through which the first end of the buffer rod passes and is fixed to the first fixed seat.

[0026] In this design, the first end of the buffer rod passes through the mounting hole and is fixed to the first fixed seat, which is a relatively stable fixing method. The buffer is not easy to fall off the first fixed seat, and the buffer rod is usually lightweight, so it will not put a lot of load on the first fixed seat. In addition, the buffer rod passing through the mounting hole can prevent the buffer from swaying and prevent it from affecting the buffer effect.

[0027] Preferably, the buffer further includes a limiting member, and the mounting holes include a first mounting hole and a second mounting hole. The first mounting hole is closer to the buffer than the second mounting hole, the radius of the second mounting hole is larger than the radius of the first mounting hole, the first mounting hole and the second mounting hole are connected, and a stepped portion is provided at the connection point.

[0028] The limiting component is installed on the stepped portion and is sleeved on the first end of the buffer rod to restrict the movement of the first end of the buffer rod along the buffer direction.

[0029] In this design, the stepped portion allows the limiting component to be securely placed on the first fixed seat, preventing it from easily detaching. Furthermore, the limiting component further cushions the buffer rod, preventing a rigid connection between the buffer rod and the first fixed seat. This enhances the cushioning effect on the refrigerator door while avoiding direct collision between the buffer rod and the first fixed seat, which could damage both. The radius of the second mounting hole is larger than that of the first mounting hole, ensuring the limiting component is securely placed on the first fixed seat while minimizing the free space of the buffer rod in the radial direction of the first mounting hole. This prevents the buffer component from swaying and maintains its cushioning effect.

[0030] Preferably, the first end of the buffer is installed in the transmission assembly, the second end of the buffer is a free end, and the buffer has an active state in which the buffering effect is activated and an inactive state in which the buffering effect is not activated.

[0031] During the closing process of the door, the buffer is used to switch from an inactive state to an active state when the transmission assembly moves to the point where the second end of the buffer abuts against the first fixed seat.

[0032] In this design, the second end of the buffer is a free end, which is not restricted and facilitates sufficient buffering when the refrigerator door is closed. In addition, the buffer is used to switch from an inactive state to an active state when the transmission assembly moves to the point where the second end of the buffer abuts against the first fixed seat. That is, when the second end of the buffer abuts against the first fixed seat, the buffer begins to be in an active state, which means that the buffering of the transmission assembly is timely and facilitates timely deceleration of the refrigerator door.

[0033] Preferably, the transmission assembly has a receiving groove at one end near the first fixed seat, and the first end of the buffer is installed in the receiving groove.

[0034] In this design, the first end of the buffer is installed in the receiving groove, which helps to save the working space of the buffer, making the hinge more compact and stable. In addition, the setting of the receiving groove helps to prevent the buffer from tilting or shaking, so as to avoid affecting the buffer function of the buffer. Moreover, the buffer installed in the receiving groove can achieve the effect of shielding and dust prevention of the receiving groove.

[0035] Preferably, the shape of the bottom of the receiving groove is adapted to the shape of the side of the buffer member facing the bottom of the groove;

[0036] And / or, multiple buffers are spaced apart in the horizontal direction.

[0037] In this design, the shape of the bottom of the receiving groove matches the shape of the side of the buffer component facing the bottom of the groove. This arrangement eliminates the need for excessive slotting of the transmission component, thus avoiding impacting its strength. Furthermore, with no extra space at the bottom of the groove, the buffer component can be effectively restrained, preventing it from swaying or tilting, thereby avoiding affecting its buffering effect. In addition, multiple buffer components are spaced apart in the horizontal direction. This arrangement makes more efficient use of the space below the first fixed seat and is more compatible with the movement of the transmission component, achieving linear buffering.

[0038] This utility model also provides a refrigerator, which further includes a cabinet, a door, and the hinges described above.

[0039] The positive and progressive effects of this utility model are as follows: When multiple buffer positions are used to act simultaneously on the first fixed seat and another of the transmission components during the closing process of the door, this increases the buffer area between the buffer component and the first fixed seat or transmission component, which is beneficial to improving the buffering effect on the speed of the refrigerator door and preventing sudden changes in the speed of the refrigerator door from damaging the refrigerator body; when multiple buffer positions are used to act sequentially on the first fixed seat and another of the transmission components during the closing process of the door, this setting not only improves the buffering effect on the speed of the refrigerator door, but also buffers the speed of the refrigerator door in stages, further reducing the instantaneous impact of the refrigerator door on the refrigerator body, so as to prevent sudden changes in the speed of the refrigerator door from damaging the refrigerator body. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of the hinge of a refrigerator door when closed, according to an embodiment of the present invention.

[0041] Figure 2 for Figure 1 A cross-sectional view showing the positional relationship between the buffer component and the first fixed seat.

[0042] Figure 3 This is a partial structural diagram of the hinge when the refrigerator door is closed.

[0043] Figure 4 A three-dimensional structural diagram showing the positional relationship between the hinge buffer and the first fixed seat when the refrigerator door is opened to a certain angle.

[0044] Figure 5 A three-dimensional structural diagram showing the positional relationship between the hinge buffer and the first fixed seat when the refrigerator door is fully opened.

[0045] Explanation of reference numerals in the attached figures:

[0046] Hinges 100

[0047] First fixed seat 1

[0048] First mounting hole 11

[0049] Second mounting hole 12

[0050] Step 13

[0051] Mounting hole 14

[0052] Transmission component 2

[0053] Receiving slot 21

[0054] Buffer 22

[0055] Buffer 221

[0056] Buffer bar 222

[0057] Limiting component 23

[0058] First transmission rod 24

[0059] Second transmission rod 25

[0060] Third transmission rod 26

[0061] Fourth transmission rod 27

[0062] Second fixing seat 3 Detailed Implementation

[0063] The present invention will be further described below with reference to the accompanying drawings and by way of embodiments, but the present invention is not limited to the scope of the embodiments thereon.

[0064] like Figure 1-5As shown, this embodiment provides a hinge 100 for opening and closing a refrigerator door. The hinge 100 includes: a first fixed seat 1 for mounting on the refrigerator body; a second fixed seat 3 for mounting on the door; and a transmission assembly 2 hinged between the first fixed seat 1 and the second fixed seat 3. The transmission assembly 2 is configured to drive the second fixed seat 3 to fold towards the first fixed seat 1 and be fitted onto the first fixed seat 1 during the closing process of the door. The hinge 100 also includes a buffer assembly disposed between the first fixed seat 1 and the transmission assembly 2. The buffer assembly has a first end and a second end along the buffering direction, and the second end of the buffer assembly has multiple buffer positions. The first end of the buffer assembly is disposed in one of the first fixed seat 1 and the transmission assembly 2, and the multiple buffer positions are used to act simultaneously or sequentially on the other of the first fixed seat 1 and the transmission assembly 2 during the closing process of the door.

[0065] In this embodiment, when multiple buffer positions are used to act simultaneously on the other of the first fixed seat 1 and the transmission component 2 during the closing process of the door, this increases the buffer area between the buffer component and the first fixed seat 1 or the transmission component 2, which is beneficial to improving the buffering effect on the speed of the refrigerator door and preventing sudden changes in the speed of the refrigerator door from damaging the refrigerator body and door. When multiple buffer positions are used to act sequentially on the other of the first fixed seat 1 and the transmission component 2 during the closing process of the door, this setting not only improves the buffering effect on the speed of the refrigerator door, but also buffers the speed of the refrigerator door in stages, further reducing the instantaneous impact of the refrigerator door on the refrigerator body, so as to prevent sudden changes in the speed of the refrigerator door from damaging the refrigerator body and cabinet.

[0066] It should be noted that the above-mentioned buffer components are relatively large in size, which will generate a larger buffer area to improve the buffering effect. In addition, when the refrigerator door is closed, the buffer components are not visible from the outside of the hinge 100. At this time, the buffer components are covered by the first fixing seat 1, the second fixing seat 3 and the transmission component 2 to avoid damage to the buffer components from the external environment.

[0067] Specifically, in this embodiment, such as Figure 4 As shown, Figure 4 When hinge 100 is fully open, the buffer assembly is not in contact with the transmission assembly and is inactive. Figure 2 The hinge 100 is in the closed state. During the process of the hinge 100 moving from the fully open state to the closed state, the transmission component begins to abut against the buffer and drives the buffer to move together, thus activating the transmission component. Figure 3As shown, the buffer assembly includes a plurality of buffer members 22 spaced apart. The first end of the plurality of buffer members 22 is disposed in one of the first fixed base 1 and the transmission assembly 2, and the second end of the plurality of buffer members 22 is used to provide a plurality of buffer positions; and / or, the transmission assembly includes a first transmission rod 24, a second transmission rod 25, a third transmission rod 26 and a fourth transmission rod 27; the first end of the first transmission rod 24 is hinged to the first fixed base, the second end of the first transmission rod 24 is hinged to the first end of the second transmission rod 25, the second end of the second transmission rod 25 is hinged to the middle of the second fixed base, the first end of the third transmission rod 26 is hinged to the first fixed base, the second end of the third transmission rod 26 is hinged to the middle of the second transmission rod 25, the first end of the fourth transmission rod 27 is hinged to the middle of the third transmission rod 26, and the second end of the fourth transmission rod 27 is hinged to one end of the second fixed base; wherein, the buffer member is disposed between the first transmission rod 24 and the first fixed base, and the third transmission rod 26 can be rotated and folded along the hinge point so that the second fixed base is folded toward the first fixed base and fitted onto the first fixed base.

[0068] In this embodiment, one buffer member 22 corresponds to one buffer position. The multiple buffer members 22 are arranged at intervals, which makes the positions of the buffer members 22 more dispersed. Therefore, when the buffer member 22 buffers the refrigerator door, the force on the buffer assembly is also more dispersed, which helps to prevent the impact force of the refrigerator door on the refrigerator body from being too concentrated and causing damage to the refrigerator body. In addition, the above-mentioned arrangement of the buffer assembly does not cause the buffer assembly to act on the third transmission rod 26, which bears the greatest weight of the door, during the opening and closing of the door, so as to prevent damage to the third transmission rod 26.

[0069] It should be noted that multiple buffers 22 can also be set up close together.

[0070] like Figure 3 As shown, the first end of the buffer member 22 is mounted on the first fixed seat 1, and the second end of the buffer member 22 is a free end. The buffer member 22 has an active state in which the buffering function is activated and an inactive state in which the buffering function is not activated. In the process of closing the door, the buffer member 22 is used to switch from the inactive state to the active state when the transmission component 2 moves to abut against the second end of the buffer member 22.

[0071] In this embodiment, the second end of the buffer member 22 is a free end and is not restricted, which is beneficial for providing sufficient buffering for the refrigerator door when it is closed. In addition, the buffer member 22 is used to switch from an inactive state to an active state when the transmission component 2 moves to abut against the second end of the buffer member 22. That is, when the transmission component 2 moves to abut against the second end of the buffer member 22, the buffer member 22 starts to be in an active state, which means that the buffering of the transmission component 2 is timely and is beneficial for timely deceleration of the refrigerator door.

[0072] It should be noted that the buffer 22 is equivalent to being suspended on the first fixed seat 1, and the free end of the buffer 22 is naturally set towards the transmission component 2. In addition, the inactive state means that the buffer 22 is not in contact with the transmission component 2 and the buffer 22 does not perform a buffering function on the transmission component 2. The active state means that the buffer 22 is in contact with the transmission component 2 and the buffer 22 performs a buffering function on the transmission component 2.

[0073] Specifically, during the closing process of the door, the transmission component moves from not contacting the buffer to contacting the buffer, thereby driving the buffer to move. During this process, the buffer cushions the transmission component.

[0074] like Figure 1-4 As shown, the transmission assembly 2 has a receiving groove 21 at one end near the first fixed seat 1. The receiving groove 21 is used to receive multiple buffer members 22. The buffer members 22 are used to switch from an inactive state to an active state when the transmission assembly 2 moves to the bottom of the receiving groove 21 and abuts against the second end of the buffer member 22.

[0075] In this embodiment, the transmission assembly 2 is provided with a receiving groove 21 at one end near the first fixed base 1. The receiving groove 21 is used to accommodate multiple buffer members 22. The above arrangement is beneficial to improve the space utilization rate of the transmission assembly, making the hinge 100 more compact and stable, and enabling the buffer members to have a large buffer stroke within a limited space. In addition, the arrangement of the receiving groove 21 helps to prevent the buffer members 22 from tilting or shaking, so as to avoid affecting the buffer function of the buffer members 22. Moreover, the contact area when the buffer members 22 abut against the bottom of the groove is relatively large, resulting in a larger buffer area and thus a better buffering effect.

[0076] It should be noted that the bottom of the receiving groove 21 is the contact plane between the bottom of the groove and the buffer 22. The shape and contour of this plane can be adjusted according to the requirements to determine the position where the buffer 22 begins to buffer.

[0077] like Figure 2 As shown, the buffer member 22 has a buffer rod 222 and a buffer 221 sleeved on the second end of the buffer rod 222. The first fixed base 1 has a mounting hole 14, and the first end of the buffer rod 222 passes through the mounting hole 14 and is fixed to the first fixed base 1.

[0078] In this embodiment, the first end of the buffer rod 222 passes through the mounting hole 14 and is fixed to the first fixed base 1, which is a relatively stable fixing method. The buffer member 22 is not easy to fall off the first fixed base 1. Moreover, the buffer rod 222 is usually lightweight and will not put a large load on the first fixed base 1. In addition, the buffer rod 222 passing through the mounting hole 14 can prevent the buffer member 22 from swaying and prevent it from affecting the buffering effect of the buffer member 22.

[0079] It should be noted that the mounting hole 14 can be drilled into the first fixed seat 1 using a drilling machine, or it can be embedded or riveted into the first fixed seat 1. In addition, the mating component of the buffer rod 222 and the mounting hole 14 can also be replaced with other mating components that can fix the buffer 22 to the first fixed seat 1, such as bolt connection or snap connection.

[0080] like Figure 1-5 As shown, the buffer member 22 also includes a limiting member 23. The mounting hole 14 includes a first mounting hole 11 and a second mounting hole 12. The first mounting hole 11 is closer to the buffer member than the second mounting hole 12. The radius of the second mounting hole 12 is larger than the radius of the first mounting hole 11. The first mounting hole 11 and the second mounting hole 12 are connected and have a stepped portion 13 at the connection. The limiting member 23 is disposed on the stepped portion 13 and is sleeved on the first end of the buffer rod 222 to limit the movement of the first end of the buffer rod 222 along the buffer direction.

[0081] In this embodiment, the step portion 13 allows the limiting member 23 to be stably placed on the first fixed base 1, preventing it from easily falling off. Furthermore, the limiting member further cushions the buffer rod 222, preventing it from being rigidly connected to the first fixed base 1. This not only improves the cushioning effect on the refrigerator door but also avoids direct collision between the buffer rod 222 and the first fixed base 1, which could damage both. The radius of the second mounting hole 12 is larger than that of the first mounting hole 11, allowing the limiting member 23 to be stably placed on the first fixed base 1. It also ensures that the buffer rod 222 has little free space in the radial direction of the first mounting hole 11, thus preventing the buffer member 22 from swaying and affecting its cushioning effect.

[0082] It should be noted that the aforementioned limiting member 23 is a snap ring or other component that can limit the movement of the first end of the buffer rod 222 along the buffering direction; in addition, the mounting hole 14 penetrates the aforementioned first fixing seat 1 along the aforementioned buffering direction.

[0083] In other alternative embodiments, the first end of the buffer 22 is installed in the transmission assembly 2, the second end of the buffer 22 is a free end, and the buffer 22 has an active state in which the buffering function is activated and an inactive state in which the buffering function is not activated; wherein, during the closing process of the door, the buffer 22 is used to switch from the inactive state to the active state when the transmission assembly 2 moves to the point where the second end of the buffer 22 abuts against the first fixed seat 1.

[0084] In this embodiment, the second end of the buffer member 22 is a free end and is not restricted, which is beneficial for sufficient buffering when the refrigerator door is closed. In addition, the buffer member 22 is used to switch from an inactive state to an active state when the transmission assembly 2 moves to the point where the second end of the buffer member 22 abuts against the first fixed seat 1. That is, when the second end of the buffer member abuts against the first fixed seat 1, the buffer member 22 begins to be in an active state, which means that the buffering of the transmission assembly 2 is timely and is beneficial for timely deceleration of the refrigerator door.

[0085] Furthermore, the transmission assembly 2 is provided with a receiving groove 21 at one end near the first fixed seat 1, and the first end of the buffer member 22 is installed in the receiving groove 21.

[0086] In this embodiment, the first end of the buffer member 22 is installed in the receiving groove 21, which helps to save the working space of the buffer member 22, making the hinge 100 more compact and more stable. In addition, the setting of the receiving groove 21 helps to prevent the buffer member 22 from tilting or shaking, so as to avoid affecting the buffering function of the buffer member 22. Moreover, the buffer member 22 is installed in the receiving groove 21, which can achieve the effect of shielding and dustproofing the receiving groove 21.

[0087] It should be noted that the depth of the receiving slot matches the height of the buffer 221.

[0088] like Figure 1-5 As shown, the shape of the bottom of the receiving groove 21 is adapted to the shape of the side of the buffer member 22 facing the bottom of the groove; and / or, a plurality of buffer members 22 are spaced apart in the horizontal direction.

[0089] In this embodiment, the shape of the bottom of the receiving groove 21 is adapted to the shape of the side of the buffer member 22 facing the bottom of the groove. This arrangement does not require excessive slotting of the transmission component, which would affect the strength of the transmission component. At the same time, when there is no extra space at the bottom of the groove, the buffer member 22 can be better restricted to prevent the buffer member 22 from shaking or tilting, so as to avoid affecting the buffering effect of the buffer member 22. In addition, multiple buffer members are arranged at intervals along the horizontal direction. This arrangement makes more efficient use of the space below the first fixed seat and is more adapted to the movement process of the transmission component to achieve linear contact and linear buffering.

[0090] It should be noted that the buffer 22 is positioned along the lateral direction of the first fixed seat 1 or the transmission assembly 2.

[0091] Specifically, during the closing process of the door, the buffer component moves from not contacting the first fixed seat to contacting the first fixed seat, until it is stopped by the limiting component. During this process, the buffer component buffers the transmission components.

[0092] This utility model also provides a refrigerator, which further includes a cabinet, a door and the hinge 100 as described above.

[0093] Additionally, when the buffer assembly is fixed on the first fixing seat 1, it is combined with the attached Figure 1-4 As understood, in this embodiment, during the process of the door moving from fully open to closed, the transmission assembly 2 drives the door to move toward the first fixed seat 1 until the green plane in the bottom of the mounting groove abuts against the buffer 221. At this time, it changes from an inactive state to an active state, and the buffer 22 begins to buffer the transmission assembly 2, that is, to buffer the door. Then, the transmission assembly 2 drives the door to continue moving, and the buffer 22 begins to deform to buffer the transmission assembly 2. The buffer rod 222 moves in the mounting hole 14 along the buffering direction, while the limiting member 23 restricts the movement of the first end of the buffer rod 222 along the buffering direction until the door is closed and the buffer 22 stops moving.

[0094] When the buffer assembly is fixed on the transmission assembly 2, in this embodiment, during the process of the door body moving from fully open to closed, the transmission assembly 2 drives the door body to move towards the first fixed seat 1 until the second end of the buffer rod 222 abuts against the first fixed seat 1. At this time, it changes from an inactive state to an active state, and the buffer member 22 begins to buffer the transmission assembly 2, that is, to buffer the door body. Then, the transmission assembly 2 drives the door body to continue moving, and the buffer member 22 begins to deform to buffer the transmission assembly 2. The second end of the buffer rod 222 moves in the mounting hole 14 along the buffering direction until it is sleeved by the limiting member 23. At the same time, the limiting member 23 restricts the movement of the first end of the buffer rod 222 along the buffering direction until the door body is closed and the buffer member 22 stops moving.

[0095] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0096] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A hinge for opening and closing a refrigerator door, the hinge comprising: A first fixing bracket is used for mounting on the refrigerator body; The second fixing seat is used for mounting on the door body; A transmission assembly, hinged between a first fixed seat and a second fixed seat, is configured to, during the closing of the door, drive the second fixed seat to fold towards the first fixed seat and embed itself onto the first fixed seat; characterized in that... The hinge includes a buffer assembly disposed between the first fixed base and the transmission assembly. The buffer assembly has a first end and a second end along the buffering direction, and the second end of the buffer assembly has multiple buffer positions. The first end of the buffer assembly is disposed on one of the first fixed seat and the transmission assembly, and the plurality of buffer positions are used to act simultaneously or sequentially on the other of the first fixed seat and the transmission assembly during the closing process of the door.

2. The hinge of claim 1, wherein The buffer assembly includes a plurality of buffer members spaced apart, with the first end of the plurality of buffer members disposed on one of the first fixed base and the transmission assembly, and the second end of the plurality of buffer members used to provide a plurality of buffer positions; And / or, the transmission assembly includes a first transmission rod, a second transmission rod, a third transmission rod, and a fourth transmission rod; a first end of the first transmission rod is hinged to the first fixed seat, a second end of the first transmission rod is hinged to the first end of the second transmission rod, a second end of the second transmission rod is hinged to the middle of the second fixed seat, a first end of the third transmission rod is hinged to the first fixed seat, a second end of the third transmission rod is hinged to the middle of the second transmission rod, a first end of the fourth transmission rod is hinged to the middle of the third transmission rod, and a second end of the fourth transmission rod is hinged to one end of the second fixed seat; wherein, the buffer is disposed between the first transmission rod and the first fixed seat, and the third transmission rod is rotatable and foldable along the hinge point so that the second fixed seat is folded towards the first fixed seat and fitted onto the first fixed seat.

3. The hinge of claim 2, wherein The first end of the buffer is mounted on the first fixed base, the second end of the buffer is a free end, and the buffer has an active state in which the buffering function is activated and an inactive state in which the buffering function is not activated. During the closing process of the door, the buffer is used to switch from the inactive state to the active state when the transmission assembly moves to abut against the second end of the buffer.

4. The hinge of claim 3, wherein The transmission assembly has a receiving groove at one end near the first fixed seat, and the receiving groove is used to accommodate multiple buffer components; The buffer is used to switch from the inactive state to the active state when the transmission assembly moves to the bottom of the receiving groove and abuts against the second end of the buffer.

5. The hinge of claim 3, wherein The buffer has a buffer rod and a buffer sleeved on the second end of the buffer rod. The first fixed base has a mounting hole, and the first end of the buffer rod passes through the mounting hole and is fixed to the first fixed base.

6. The hinge of claim 5, wherein The buffer also includes a limiting member. The mounting holes include a first mounting hole and a second mounting hole in sequence along the movement direction of the first end of the buffer rod. The radius of the second mounting hole is larger than the radius of the first mounting hole. The first mounting hole and the second mounting hole are connected and have a stepped portion at the connection. The limiting member is disposed on the stepped portion and sleeved on the first end of the buffer rod to restrict the movement of the first end of the buffer rod along the buffering direction.

7. The hinge of claim 2, wherein The first end of the buffer is installed in the transmission assembly, the second end of the buffer is a free end, and the buffer has an active state in which the buffering function is activated and an inactive state in which the buffering function is not activated. During the closing process of the door, the buffer is used to switch from the inactive state to the active state when the transmission assembly moves to the point where the second end of the buffer abuts against the first fixed seat.

8. Hinge according to claim 7, characterized in that The transmission assembly has a receiving groove at one end near the first fixed seat, and the first end of the buffer is installed in the receiving groove.

9. Hinge according to claim 4 or 8, characterized in that The shape of the bottom of the receiving groove is adapted to the shape of the side of the buffer member facing the bottom of the groove; And / or, multiple buffers are spaced apart in the horizontal direction.

10. A refrigerator comprising a cabinet and a door body, characterized by, The refrigerator also includes a hinge as described in any one of claims 1-9.

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