Embedded refrigerator buffer hinge

Abstract

The utility model provides a kind of embedded refrigerator buffer hinge, including fixed seat, hinge seat and the hinge transmission assembly articulated between fixed seat and hinge seat, hinge transmission assembly is equipped with transmission connection group for the articulated point of articulation with fixed seat as fixed point rotation folding and make hinge seat fold to the direction of fixed seat and embed on fixed seat, lengthen the force arm of hinge seat rotation, reduce the thrust of refrigerator door body, convenient operation;And hinge transmission assembly is equipped with elastic buffer device, and elastic buffer device is mutually connected with buffer head, and the end of buffer 6 is articulated with transmission connection group, when hinge opens, elastic buffer device applies buffer elastic pressure to buffer head, and buffer head then applies the jacking pressure balanced with buffer elastic pressure to elastic buffer device when rotating, stable operation, stress uniform, also can reach the purpose that refrigerator door body is opened and stays arbitrarily, flexible use, strong applicability, ensure the use effect of hinge, ensure the use quality of refrigerator.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator hinges, specifically an embedded refrigerator buffer hinge. Background Technology

[0002] Refrigerator hinges are currently the most commonly used connecting parts for opening and closing refrigerator doors. In order to achieve good closing performance between the refrigerator door and the refrigerator cabinet after opening or closing, existing refrigerator hinges usually adopt a six-bar linkage mechanism.

[0003] However, current refrigerator hinges have the following drawbacks:

[0004] 1. The elastic buffer is set inside the rear drive arm and is pushed by the boss on the hinge seat. When the rear drive arm rotates, the rotating shaft of the boss is always in a fixed state. Therefore, when the spring is pressed, the spring is affected by radial stress, which easily causes radial deformation of the spring and uneven force.

[0005] 2. Traditional elastic dampers are located inside the rear drive arm, which causes the freezer lid to either close or open completely, making it difficult to adapt to human usage habits to control the rotation angle of the refrigerator door, resulting in low applicability;

[0006] 3. The hinge has a small lever arm, which results in a large thrust required to turn the refrigerator door, making it inconvenient to operate. In addition, there are many internal components in the hinge. After the refrigerator door is closed, there are large gaps between the internal components, which increases the assembly volume and makes it easy for moisture and dirt to accumulate.

[0007] Therefore, traditional refrigerator hinges still need further improvement. Utility Model Content

[0008] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an embedded refrigerator buffer hinge. It has fewer parts, simplifies the structure, reduces costs, and allows the hinge to be embedded and folded when the refrigerator door is closed, reducing the space occupied by assembly and preventing the accumulation of moisture and dirt. Under the elastic buffering effect of the hinge, the refrigerator door can stay at any angle when it is open, which is highly adaptable and convenient to operate.

[0009] The utility model objective is achieved as follows: An embedded refrigerator buffer hinge includes a fixed seat installed on the refrigerator frame, a hinge seat installed on the refrigerator door, and a hinge transmission assembly hinged between the fixed seat and the hinge seat. The hinge transmission assembly is provided with a transmission connection group for rotating and folding the hinge seat towards the fixed seat and embedding it in the fixed seat by using the hinge point that is hinged to the fixed seat as a fixed point. The front end of the transmission connection group is hinged to the fixed seat, and the rear end of the transmission connection group is hinged to the hinge seat.

[0010] The hinge transmission assembly is equipped with an elastic buffer device that applies a buffering elastic pressure to the hinge seat. The elastic buffer devices are interconnected with a buffer head that applies a top pressure that balances the buffering elastic pressure to the elastic buffer devices during rotation, allowing the hinge seat to stop arbitrarily when it is open. The end of the buffer head is hinged to the transmission connection assembly.

[0011] Based on the above optimization, the hinge transmission assembly includes a transmission arm and a transmission link. The front end of the transmission arm is hinged to the fixed seat, the rear end of the transmission arm is hinged to the front end of the transmission link, and the rear end of the transmission link is hinged to the hinge seat.

[0012] The fixed end of the elastic buffer device is fixed on the transmission arm, and the elastic end of the elastic buffer device is slidably connected to the transmission arm and connected to the buffer head. The buffer head is skeletally connected to the hinge point between the transmission arm and the transmission link.

[0013] Based on the above optimization, the transmission connection group includes a transmission support rod and a transmission swing rod. The front end of the transmission support rod is hinged to the fixed seat, and the two sides of the rear end of the transmission support rod are respectively hinged to the front part of the transmission swing rod. The rear end of the transmission swing rod is respectively hinged to the hinge seat.

[0014] Based on the above optimization, the front part of the transmission rocker arm is provided with a connecting flange for rotating and folding to the hinge seat at the hinge point that is hinged to the transmission support rod. The connecting flange is provided with an inclined surface that contacts the hinge seat surface.

[0015] Based on the above optimization, a limiting block for limiting the opening position of the hinge seat is provided on the outer side of the transmission swing rod. The limiting connecting block is located on the outer side of the transmission support rod and is respectively connected to the transmission swing rod.

[0016] Based on the above optimization, the elastic buffer device includes a spring rod and a spring element. The fixed end of the spring rod is fixed on the transmission arm of the hinge transmission assembly. A push rod is installed on the movable end of the spring rod. The push rod is telescopically connected to the movable end of the spring rod, and the push rod shaft is connected to a roller that is interconnected with the buffer head. The spring element is sleeved on the spring rod and its two ends press against the front end of the spring rod and the push rod, respectively.

[0017] Based on the above optimization, the transmission arm is provided with a sliding groove, and the push rod is equipped with a sliding shaft that matches the roller, with the sliding shaft slidably connected to the sliding groove.

[0018] Based on the above optimization, the buffer head is equipped with a connecting shaft for connecting to the transmission linkage shaft, and the buffer head is an eccentric buffer wheel that rotates around the connecting shaft as a fixed point and is connected to the roller surface.

[0019] The advantages of this utility model are as follows: By utilizing the transmission cooperation between the hinge transmission assembly and the transmission connection group, the hinge transmission assembly and the transmission connection group fold around the hinge point where they are hinged to the fixed seat, lengthening the lever arm of the hinge seat rotation, reducing the pushing force on the refrigerator door, facilitating operation, and enabling the hinge seat to rotate and fold around the hinge point where it is hinged to the fixed seat, thus reducing the gaps between the internal components of the hinge after the refrigerator door is closed, reducing the assembly volume, and preventing the accumulation of moisture and dirt; Furthermore, the structure of the elastic buffer device and the buffer head allows the elastic buffer device to apply buffering elastic pressure to the buffer head, while the buffer head applies a top pressure that balances the buffering elastic pressure to the elastic buffer device during rotation, resulting in stable operation, uniform force distribution, and the ability to stop the refrigerator door at any point when it is open. It is flexible in use, highly applicable, ensures the effectiveness of the hinge, and guarantees the quality of the refrigerator's operation. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the structure in the folded state of a preferred embodiment of the present invention.

[0021] Appendix Figure 2 This is a partial cut view of the folded state of a preferred embodiment of the present invention.

[0022] Appendix Figure 3 This is a schematic diagram of the structure in the open state of a preferred embodiment of the present invention.

[0023] Appendix Figure 4 This is a partial cut-out view of the opened state of a preferred embodiment of the present invention.

[0024] Appendix Figure 5 This is a cross-sectional view of the preferred embodiment of the present invention in its open state.

[0025] Appendix Figure 6 This diagram illustrates the relationship between the elastic buffer device and the buffer head in a preferred embodiment of this utility model.

[0026] Appendix Figure 7 This is a schematic diagram of the transmission rocker arm according to a preferred embodiment of the present invention. Detailed Implementation

[0027] The present invention will now be further described with reference to the accompanying drawings.

[0028] According to the appendix Figures 1 to 7As shown, the embedded refrigerator buffer hinge of this utility model includes a fixed base 1 installed on the refrigerator frame, a hinge seat 2 installed on the refrigerator door, and a hinge transmission assembly 3 hinged between the fixed base 1 and the hinge seat 2. The hinge transmission assembly 3 is provided with a transmission connection group 4 for rotating and folding the hinge seat 2 towards the fixed base 1 and embedding it in the fixed base 1, with the hinge point hinged to the fixed base 1 as the fixed point. The front end of the transmission connection group 4 is hinged to the fixed base 1, and the rear end of the transmission connection group 4 is hinged to the hinge seat 2.

[0029] That is, when the refrigerator is closed, the hinge transmission assembly 3 and the transmission connection group 4 fold around the hinge point that is hinged to the fixed base 1, thereby lengthening the lever arm of the hinge seat 2 and reducing the pushing force required to push the refrigerator door, making operation easier. Moreover, when the refrigerator door is closed, the hinge seat 2 can rotate around the hinge point that is hinged to the fixed base 1 and fold into place on the fixed base 1, reducing the gaps between the internal components of the hinge, reducing the assembly volume, and preventing the accumulation of moisture, dirt, etc.

[0030] Reference Figure 4 As shown, the transmission connection group 4 includes a transmission support rod 41 and a transmission swing rod 42. The front end of the transmission support rod 41 is hinged to the fixed base 1, and the two sides of the rear end of the transmission support rod 41 are respectively hinged to the front part of the transmission swing rod 42. The rear end of the transmission swing rod 42 is respectively hinged to the hinge base 2.

[0031] When the refrigerator door is opened, the hinge seat 2 is opened outward, causing the transmission arm 31 and transmission support rod 41 to rotate outward around their hinge points with the fixed seat 1. When the transmission arm 31 and transmission support rod 41 rotate to the designated position, the transmission connecting rod 32 and transmission swing rod 42 rotate outward around their hinge points with the transmission arm 31 and transmission support rod 41, respectively. At this time, the hinge points of the transmission swing rod 42 and transmission support rod 41, the hinge points of the transmission swing rod 42 and hinge seat 2, the hinge points of the hinge seat 2 and transmission connecting rod 32, and the hinge points of the transmission connecting rod 32 and transmission arm 31 form a four-sided balanced motion. Lengthening the lever arm of the hinge seat 2 reduces the pushing force required to push the refrigerator door, making operation easier.

[0032] The transmission rocker arm 42 is provided with a limiting block 45 on its outer side to restrict the opening position of the hinge seat 2. The limiting block is located on the outer side of the transmission support rod 41 and is connected to the transmission rocker arm 42. When the transmission connecting rod 32 and the transmission rocker arm 42 rotate to their rated positions, the limiting block 45 pushes against the transmission support rod 41, so that the transmission rocker arm 42, the transmission connecting rod 32, and the hinge seat 2 are respectively in the four-bar linkage support frame, so that the hinge seat 2 is fully opened, strengthening the support strength, improving the smoothness and stability of operation, and reducing noise.

[0033] Additionally, the front of the transmission swing rod 42 is provided with a connecting flange 43 for folding and connecting to the hinge seat 2 by rotating at the hinge point that is hinged to the transmission support rod 41. The connecting flange 43 has an inclined surface 44 that contacts the surface of the hinge seat 2. When the refrigerator door is closed, the hinge seat 2 is folded inward, pushing the transmission link 32 and the transmission swing rod 42 to rotate inward with the hinge point with the transmission arm 31 and the transmission support rod 41 as fixed points. When the transmission link 32 and the transmission swing rod 42 rotate to the designated position, the transmission link 32 and the transmission support rod 41 are folded onto the transmission arm 31 and the transmission support rod 41, and the inclined surface 44 of the connecting flange 43 contacts the surface of the hinge seat 2. Then, the hinge seat 2 continues to move inward, causing the transmission arm 31 and the transmission support rod 41 to rotate inward with the hinge point that is hinged to the fixed seat 1 as the fixed point, so that the transmission arm 31 and the transmission support rod 41 are respectively embedded in the fixed seat 1, thereby realizing that the hinge seat 2 is embedded in the fixed seat 1, reducing the gap between the internal components of the hinge, reducing the assembly volume, and avoiding the accumulation of moisture, dirt, etc.

[0034] Reference Figures 1 to 7 As shown, the hinge transmission assembly 3 is equipped with an elastic buffer device 5 that applies a buffering elastic pressure to the hinge seat 2. The elastic buffer devices 5 are interconnected with buffer heads 6, which apply a top pressure that balances the buffering elastic pressure to the elastic buffer devices 5 during rotation, allowing the hinge seat 2 to stop arbitrarily when open. The end of the buffer head 6 is hinged to the transmission connection assembly 4. The fixed end of the elastic buffer device 5 is fixed to the transmission arm 31, and the elastic end of the elastic buffer device 5 is slidably connected to the transmission arm 31 and connected to the buffer head 6. The buffer head 6 is axially connected to the hinge point between the transmission arm 31 and the transmission connecting rod 32.

[0035] That is, the elastic buffer device 5 applies a buffering elastic pressure to the buffer head 6, and the buffer head 6 applies a top pressure that is balanced with the buffering elastic pressure to the elastic buffer device 5 when rotating. The operation is stable and the force is even. It can also achieve the purpose of stopping the refrigerator door at any time when it is opened. It is flexible in use, highly applicable, ensures the use effect of the hinge, and ensures the use quality of the refrigerator.

[0036] In practical applications, the elastic buffer device 5 includes a spring rod 51 and a spring element 52. The fixed end of the spring rod 51 is fixed to the transmission arm 31 of the hinge transmission assembly 3, and the movable end of the spring rod 51 is equipped with a push rod 53. The push rod 53 is telescopically connected to the movable end of the spring rod 51, and the push rod 53 is axially connected to a roller 54 that is interconnected with the buffer head 6. The spring element 52 is sleeved on the spring rod 51 and its two ends press against the front end of the spring rod 51 and the push rod 53, respectively. The spring element 52 is a helical spring. When the hinge is running, one end of the spring element 52 acts on the transmission arm 31, and the other end of the spring element 52, through the push rod 53, causes the roller 54 to elastically return and slide relative to the transmission arm 31. Specifically, the transmission arm 31 is provided with a sliding groove 33, and the push rod 53 is equipped with a sliding shaft 55 that matches the roller 54. The sliding shaft 55 is slidably connected to the sliding groove 33. This enhances operational stability and smoothness, improving the quality of use of the elastic buffer device 5. During this period, the roller 54 rolls freely; to prevent the spring 52 from acting directly on the roller 54 and affecting the movement of the roller 54, the push rod 53 extends and retracts on the sliding shaft 55 to ensure the normal use of the elastic buffer device 5.

[0037] Furthermore, the buffer head 6 is equipped with a connecting shaft 61 for connecting to the transmission link 32. The buffer head 6 is an eccentric buffer wheel that rotates around the connecting shaft 61 and is connected to the surface of the roller 54. Because the eccentric buffer wheel has an eccentrically smooth arc-shaped surface, it exerts a squeezing effect on the roller 54, and the roller 54 rolls on the arc-shaped surface of the eccentric buffer wheel to achieve a buffering effect when the hinge opens and rotates, reducing friction between components, making the buffering smoother, and significantly reducing noise.

[0038] The above specific embodiments are only specific implementations of the present utility model with better effects. All structures that are the same as or equivalent to the embedded refrigerator buffer hinge of the present utility model are within the protection scope of the present utility model.

Claims

1. An embedded refrigerator buffer hinge, comprising a fixed base (1) mounted on the refrigerator frame, a hinge base (2) mounted on the refrigerator door, and a hinge transmission assembly (3) hinged between the fixed base (1) and the hinge base (2), characterized in that: The hinge transmission assembly (3) is provided with a transmission connection group (4) for rotating and folding the hinge point that is hinged to the fixed seat (1) so that the hinge seat (2) is folded towards the fixed seat (1) and embedded in the fixed seat (1). The front end of the transmission connection group (4) is hinged to the fixed seat (1), and the rear end of the transmission connection group (4) is hinged to the hinge seat (2). The hinge transmission assembly (3) is equipped with an elastic buffer device (5) that applies a buffering elastic pressure to the hinge seat (2). The elastic buffer devices (5) are interconnected with a buffer head (6) that applies a top pressure that balances the buffering elastic pressure to the elastic buffer device (5) during rotation, so that the hinge seat (2) can stop arbitrarily when it is opened. The end of the buffer head (6) is hinged to the transmission connection assembly (4).

2. The embedded refrigerator buffer hinge according to claim 1, characterized in that: The hinge transmission assembly (3) includes a transmission arm (31) and a transmission link (32). The front end of the transmission arm (31) is hinged to the fixed seat (1), the rear end of the transmission arm (31) is hinged to the front end of the transmission link (32), and the rear end of the transmission link (32) is hinged to the hinge seat (2). The fixed end of the elastic buffer device (5) is fixed on the transmission arm (31), and the elastic end of the elastic buffer device (5) is slidably connected to the transmission arm (31) and connected to the buffer head (6). The buffer head (6) is axially connected to the hinge point between the transmission arm (31) and the transmission link (32).

3. The embedded refrigerator buffer hinge according to claim 1, characterized in that: The transmission connection group (4) includes a transmission support rod (41) and a transmission swing rod (42). The front end of the transmission support rod (41) is hinged to the fixed seat (1), and the two sides of the rear end of the transmission support rod (41) are respectively hinged to the front part of the transmission swing rod (42). The rear end of the transmission swing rod (42) is respectively hinged to the hinge seat (2).

4. The embedded refrigerator buffer hinge according to claim 3, characterized in that: The front part of the transmission rocker arm (42) is provided with a connecting flange (43) for rotating and connecting to the hinge seat (2) by hinge point that is hinged to the transmission support rod (41). The connecting flange (43) is provided with an inclined surface (44) that contacts the surface of the hinge seat (2).

5. The embedded refrigerator buffer hinge according to claim 4, characterized in that: The outer side of the transmission swing rod (42) is provided with a limiting connecting block (45) for limiting the opening position of the hinge seat (2). The limiting connecting block is located outside the transmission support rod (41) and is respectively connected to the transmission swing rod (42).

6. The embedded refrigerator buffer hinge according to any one of claims 1 to 5, characterized in that: The elastic buffer device (5) includes a spring rod (51) and a spring element (52). The fixed end of the spring rod (51) is fixed on the transmission arm (31) of the hinge transmission assembly (3). The movable end of the spring rod (51) is equipped with a push rod (53). The push rod (53) is telescopically connected to the movable end of the spring rod (51). The push rod (53) is axially connected to a roller (54) that is connected to the buffer head (6). The spring element (52) is sleeved on the spring rod (51) and its two ends press against the front end of the spring rod (51) and the push rod (53) respectively.

7. The embedded refrigerator buffer hinge according to claim 6, characterized in that: The transmission arm (31) is provided with a sliding groove (33), and the push rod (53) is equipped with a sliding shaft (55) that is matched with the roller (54). The sliding shaft (55) is slidably connected to the sliding groove (33).

8. The embedded refrigerator buffer hinge according to claim 6, characterized in that: The buffer head (6) is equipped with a connecting shaft (61) for connecting to the transmission link (32) shaft. The buffer head (6) is an eccentric buffer wheel that rotates around the connecting shaft (61) and is connected to the surface of the roller (54).

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