Whole-journey hovering power-assisted hinge for freezer

Abstract

The whole-course hovering assisting hinge comprises a fixing base and a swing arm groove plate, a spring assembly used for applying force to whole-course opening and closing of a door body is installed on the fixing base, and a variable elastic force adjusting mechanism used for adjusting elastic force output of the spring assembly is arranged between the fixing base and the swing arm groove plate. The variable elastic force adjusting mechanism adjusts the elastic deformation length of the spring assembly in the opening and closing process of the door body, the change value of the torque in the opening and closing process of the door body is equal to the elastic force change value of the spring assembly, and the closing torque of the spring assembly and the door body is a relatively constant value; the elastic force change of the spring assembly can follow the change of the moment of force of the door body, the stable constant value state of the resultant moment is achieved, the hinge is simple and durable in structure and high in practicability and universality, and the hinge is suitable for hinge joint of an upturning door freezer and can also be used for an appliance capable of being turned and closed at will, and good market popularization is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of hinges, and in particular to a full-range hovering power-assisted hinge for a refrigerator. Background Art

[0002] Horizontal freezers are a common type of freezer that is different from vertical freezers. They are generally used for frozen storage in supermarkets, such as the ice cream rails commonly seen in supermarkets on the market. In order to maintain the heat preservation effect, the doors of these freezers are mostly made of thick doors with heat insulation materials, and they are mostly opened and closed by flipping up. However, these doors are heavy and difficult to open, and the opening angle cannot be maintained. In addition, the impact force is too large when closing.

[0003] Although there are many hinges with damping on the market to solve this problem, they are mostly divided into two categories. One is to facilitate the opening of the cabinet door, and some spring damping is set to facilitate the opening of the cabinet door. Although it can save effort to open the cabinet door, due to the upward flip door, the cabinet door will increase with the opening angle, and the downward pressure gravity will decrease, and the general spring cannot adapt to this changing torque, resulting in that although the cabinet door is easy to open, it is easy to be quickly and completely bounced open after opening a certain angle. The other is to reduce the impact and set shock-absorbing damping on the cabinet body, but this damping will cause a burden on the door opening, increase the difficulty of opening the door, and solve the problem of hovering at an intermediate angle. To solve this problem, many methods of connecting dampers or friction parts are used. Although this method can be implemented, since the resultant torque changes during the door opening process, the matching friction parts need to meet the maximum value. For example, the resultant torque is the largest when the door is just opened to a certain angle, and a friction part with greater friction is needed to maintain the angle. When the door is opened to nearly vertical, the resultant torque is smaller, and only a friction part with very small friction is needed to maintain the angle. However, if the angle needs to be maintained throughout the entire process, a friction part with maximum friction needs to be installed, which will affect the opening and closing process, making the door opening and closing actions laborious and not smooth.

[0004] Therefore, for this type of freezer with a heavy door that needs to be flipped, we need a special hinge to solve the above problem. Summary of the invention

[0005] The object of the present invention is to provide a full-range hovering power-assisted hinge for a refrigerator to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A full-range hovering power-assisted hinge for a freezer comprises a fixing seat 1 fixedly mounted on a cabinet body and a swing arm slot plate 2 fixedly mounted on a door body 5, wherein the fixing seat 1 and the swing arm slot plate 2 are rotationally connected with each other, and is characterized in that: a spring assembly for applying force to the door body 5 for full-range opening and closing is mounted on the fixing seat 1, a variable elastic force adjustment mechanism for adjusting the elastic force output of the spring assembly is arranged between the fixing seat 1 and the swing arm slot plate 2, and the variable elastic force adjustment mechanism adjusts the elastic deformation length of the spring assembly during the opening and closing process of the door body 5, and the variable elastic force adjustment mechanism comprises a connecting member 4, one end of the connecting member 4 is hinged to the swing arm slot plate 2, and the other end of the connecting member 4 is connected to the spring assembly, and a guide member for driving the non-hinged end of the connecting member 4 to move is arranged on the fixing seat 1.

[0007] Preferably, the initial end of the guide member is an upward arc segment, and when the connecting member 4 slides at the initial end of the guide member, the deformation length of the spring assembly increases.

[0008] Preferably, a connecting fixed shaft 14 is rotatably connected between the fixed seat 1 and the swing arm slot plate 2, a sliding shaft 13 and a swing arm shaft 21 are arranged on the connecting member 4, the guiding member comprises a cam slide groove 12, the swing arm slot plate 2 and the fixed seat 1 are both vertically installed, the setting direction of the connecting fixed shaft 14 is set to be horizontal, the swing arm slot plate 2 is rotatably and horizontally installed with the swing arm shaft 21, the shaft wall of the swing arm shaft 21 is rotatably connected with the connecting member 4, and the connecting member 4 is integrally arranged on the outer ring of the connecting fixed shaft 14 The end of the connecting member 4 away from the swing arm shaft 21 is laterally rotatably connected to a sliding shaft 13, and a cam groove 12 is provided on the upper and lower plate surfaces of the fixed seat 1 close to the swing arm slot plate 2. The cam groove 12 is arc-shaped and vertically arranged, and the left and right ends of the sliding shaft 13 are respectively slidably clamped in the corresponding cam groove 12. A spring component for applying force to the sliding shaft 13 is provided on the fixed seat 1, and the spring tension of the cam groove 12 is toward the extension direction of the cam groove 12.

[0009] Preferably, a connecting fixed axis 14 is rotatably connected between the fixed seat 1 and the swing arm slot plate 2, a sliding axis 13 and a swing arm shaft 21 are arranged on the connecting member 4, the guiding member comprises a protruding block 15, and the protruding block 15 is integrally formed by inward stamping after the fixed seat 1 itself is cut, the swing arm slot plate 2 and the fixed seat 1 are both vertically installed, the setting direction of the connecting fixed axis 14 is set to be horizontal, the swing arm slot plate 2 is rotatably installed with the swing arm shaft 21, and the shaft wall of the swing arm shaft 21 is horizontally The connecting member 4 is rotatably connected to the fixed axis 14, and the connecting member 4 is integrally arranged on the outer ring of the connecting fixed axis 14. The end of the connecting member 4 away from the swing arm axis 21 is rotatably connected to the sliding axis 13. The side of the protruding block 15 is arc-shaped and vertically arranged. The two sections of the sliding axis 13 slide against the arc-shaped side wall of the protruding block 15. The fixed seat 1 is provided with a spring assembly for applying force to the sliding axis 13, and the spring tension of the cam slot 12 is toward the extension direction of the cam slot 12.

[0010] Preferably, the spring assembly includes a spring body and a spring action rod, the spring body is built into the fixed seat, a spring mounting member for limiting the connection of one end of the spring body is installed in the fixed seat, and the other end of the spring body is connected to the middle position of the sliding shaft through the spring action rod.

[0011] Preferably, a limiting ring for limiting position is provided on the connecting member, the connecting member is a U-shaped groove block, and the shaft walls of the swing arm shaft and the sliding shaft are both provided with threaded sections threadedly connected to the limiting ring.

[0012] Preferably, the fixing seat is provided with a plurality of seat screw holes for conveniently adjusting the installation position, and the swing arm slot plate is provided with a plurality of plate screw holes for installation.

[0013] Preferably, a rotating friction member is provided at the connection fixed axis rotation location.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The variable elastic force adjustment mechanism provided in the present invention optimizes the hinged rotating shaft. By connecting the fixed shaft and the sliding shaft, the elastic force of the spring assembly can change following the change of the door body torque, thereby achieving a stable constant value state of the combined torque. The force is evenly applied throughout the opening and closing process, and the conventional labor-saving door opening and arbitrary angle maintenance effects are also met. The structure is simple and durable, and the practicality and versatility are strong. It is not only suitable for the hinge of top-flip door freezers, but also can be used for any flip-closed appliances, such as ovens, dishwashers, etc. It has strong adaptability and good marketability.

[0015] The upward arc section provided in the present invention achieves an effect of becoming easier to open the door in the initial stage of opening the door, and will not affect the subsequent relative functional design.

[0016] The rotating friction member provided in the present invention is mainly used to assist hovering and ensure the stability of hovering. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a vertical cross-sectional view of the present invention; Figure 2 It is a schematic diagram of the structure of the case of the present invention when it is on the door body; Figure 3 for Figure 2 Schematic diagram of the rear side; Figure 4 This is a schematic diagram of the structure when the door is opened to 25 degrees; Figure 5 This is a schematic diagram of the structure when the door is opened to 86 degrees; Figure 6 This is a schematic diagram of the structure when the present invention uses a tension spring; Figure 7 It is the torque diagram generated by the spring assembly during the door opening process; Figure 8 This is a diagram showing the change in torque of the door during the opening process; Fig. 9 is a graph showing the change of the combined torque of the spring assembly and the door body during the door opening process; Fig.10 This is a schematic structural diagram of the fixing seat when the cam groove is replaced by a protruding block in the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Fixed seat 1, spring mounting part 10, seat screw hole 11, cam slide groove 12, sliding shaft 13, connecting fixed shaft 14, raised block 15, swing arm slot plate 2, plate screw hole 20, swing arm shaft 21, spring body 3, spring action rod 30, connecting part 4, limiting ring 40, door body 5. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] See also Figure 1-9 , the present invention provides a technical solution: A full-range hovering power-assisted hinge for a freezer, comprising a fixing seat 1 fixedly mounted on a cabinet body and a swing arm slot plate 2 fixedly mounted on a door body 5, wherein the fixing seat 1 and the swing arm slot plate 2 are rotatably connected with each other, and characterized in that: a spring assembly for applying force to the door body 5 for full-range opening and closing is installed on the fixing seat 1, a variable elastic force adjustment mechanism for adjusting the elastic force output of the spring assembly is arranged between the fixing seat 1 and the swing arm slot plate 2, and the variable elastic force adjustment mechanism adjusts the elastic deformation length of the spring assembly during the opening and closing process of the door body 5, and the variable elastic force adjustment mechanism comprises a connecting member 4, one end of the connecting member 4 is hinged to the swing arm slot plate 2, and the other end of the connecting member 4 is connected to the spring assembly, and a guide member for driving the non-hinged end of the connecting member 4 to displace is arranged on the fixing seat 1, and the change value of the torque during the opening and closing process of the door body 5 is equal to the change value of the elastic force of the spring assembly, and the combined torque of the spring assembly and the door body 5 is a relatively constant value; Wherein, a connecting fixed shaft 14 is rotatably connected between the fixed seat 1 and the swing arm slot plate 2, a sliding shaft 13 and a swing arm shaft 21 are arranged on the connecting member 4, the guiding member comprises a cam slide groove 12, the swing arm slot plate 2 and the fixed seat 1 are both vertically installed, the setting direction of the connecting fixed shaft 14 is set to be horizontal, the swing arm slot plate 2 is rotatably and horizontally installed with the swing arm shaft 21, the shaft wall of the swing arm shaft 21 is rotatably connected with the connecting member 4, and the connecting member 4 is integrally arranged on the outer ring of the connecting fixed shaft 14 The end of the connecting member 4 away from the swing arm shaft 21 is rotatably connected to the sliding shaft 13, and the upper and lower plate surfaces of the fixed seat 1 close to the swing arm slot plate 2 are provided with a cam slot 12, the cam slot 12 is arc-shaped and vertically arranged, and the left and right ends of the sliding shaft 13 are respectively slidably clamped in the corresponding cam slot 12, and the fixed seat 1 is provided with a spring assembly for applying force to the sliding shaft 13, and the spring tension of the cam slot 12 is toward the extension direction of the cam slot 12; When working, Figure 1As shown, this state is the closed state of the door body 5, that is, the state when the opening and closing angle is zero degrees. At this time, the sliding shaft 13 is stuck in the top position of the cam slide groove 12, and the cam slide groove 12 extends downward. The pulling force of the spring assembly is downward, and the fixed axis of the fixed seat 1 and the swing arm slot plate 2 is connected to the fixed axis 14. The spring assembly presses the sliding shaft 13 downward, and the door body 5 connected to the swing arm slot plate 2 has a tendency to flip upward as a whole. Therefore, in the door opening stage, the spring assembly provides an outward flipping force to the door body 5, making the door opening more labor-saving. After the door body 5 is flipped open, at this time The sliding shaft 13 slides downward in the cam groove 12, and the expansion and contraction amount of the spring assembly decreases, so the spring force decreases. At this time, the opening angle of the door body 5 increases, and the rotational torque decreases. The change value of the spring force of the spring assembly follows the change of the torque of the door body 5, that is, the combined torque of the spring assembly and the door body 5 is a relative constant. The relative constant here is a constant within a relative error range, not an absolute constant. It is mainly affected by the friction connection relationship of each component. The current process cannot meet the requirements of absolute constants, and the real-time measured data cannot completely save the same value, such as Fig. 9 As shown, the resultant torque is a relatively stable fixed value range. Excluding the 0-25 degree just-opening stage and the maximum opening 86 degree stage, during the opening and closing process, the relative fixed value range is 0-120 mmN, so that the magnitude of the force applied during the opening of the door body 5 is kept in a relatively constant state, and the problem of the door body 5 being pushed open quickly as the opening angle increases will not occur, nor will the problem of the door body 5 being inconsistent in the resultant torque at any opening angle and unable to maintain friction will occur. The door body 5 can be maintained at the full angle by using a smaller constant friction member, which is more convenient to set up and more labor-saving to open and close; Therefore, the variable elastic force adjustment mechanism provided in the present invention optimizes the hinged rotating shaft, and through the cooperation of the fixed shaft 14 and the sliding shaft 13, the elastic force change of the spring assembly can follow the change of the torque of the door body 5, thereby realizing a stable constant value state of the combined torque, and the force is evenly applied throughout the opening and closing process, which also meets the conventional labor-saving door opening and arbitrary angle maintenance effects. The structure is simple and durable, and the practicality and versatility are strong. It is not only suitable for the hinge of the top-flip door freezer, but also can be used for any flip-opening appliance, such as ovens, dishwashers, etc. It has strong adaptability and good marketability.

[0022] The initial end of the guide is an upward arc segment, and when the connecting member 4 slides at the initial end of the guide, the deformation length of the spring assembly increases, that is, the initial end of the cam slot 12 is an upward arc segment, and when the sliding shaft 13 slides at the initial end of the cam slot 12, the deformation length of the spring assembly increases; During operation, the upward arc segment is mainly set in the small opening and closing angle range to increase the elastic force output of the spring assembly, further facilitating the opening of the door body 5, for example Figure 7As shown, in the range of 0-25 degrees, the torque generated by the spring increases. The corresponding weight of the door body 5 is in the range of 0-25 degrees, and the torque generated changes little, and is always in a state of large torque. When the door body 5 is opened to 25 degrees, as shown in FIG. Figure 4 As shown, after 25 degrees, the torque generated by the door body 5 begins to decrease rapidly. Here, the maximum opening and closing angle is set to 86 degrees. Figure 5 As shown, at this time, the sliding shaft 13 moves to the lowest end of the cam slot 12, which can firmly support and maintain the angle. Therefore, corresponding to the deadweight of the door body 5, as shown in FIG. Figure 8 As shown, the upward arc segment design is designed to achieve the effect of easier opening in the initial stage of door opening, and will not affect the subsequent relative functional design. It should be noted that the door body 5 here has an unconventional width for the convenience of graphic display, and the actual width and length of the door body 5 are larger.

[0023] The connecting member 4 is provided with a limiting ring 40 for limiting the position. The connecting member 4 is a U-shaped groove block. The shaft walls of the swing arm shaft 21 and the sliding shaft 13 are both provided with threaded sections that are threadedly connected with the limiting ring 40. During operation, the limit ring 40 can be tightened at different positions corresponding to the sliding shaft 13 and the swing arm shaft 21 to determine the overall position of the 4.

[0024] The fixing seat 1 is provided with a plurality of seat screw holes 11 for conveniently adjusting the installation position, and the swing arm slot plate 2 is provided with a plurality of plate screw holes 20 for installation; During operation, the swing arm slot plate 2 is first bolted and positioned, and then the installation position of the fixing seat 1 on the cabinet is adjusted. The seat screw holes 11 are provided to facilitate the adjustment of the specific installation position of the fixing seat 1. Example

[0025] The difference between this embodiment and embodiment 1 is that: The spring assembly includes a spring body 3 and a spring action rod 30. The spring body 3 is built in a fixed seat 1. A spring mounting member 10 for limiting one end of the spring body 3 is installed in the fixed seat 1. The other end of the spring body 3 is connected to the middle position of the sliding shaft 13 through the spring action rod 30. During operation, the spring action rod 30 is an elastic deformation section, which is used to apply elastic force to the sliding shaft 13 from the middle of the sliding shaft 13, so that the action force can be applied to the sliding shaft 13 during the rotation of the door body 5, and the sliding shaft 13 slides in the cam groove 12. Figure 1 The middle spring body 3 is a compression spring. Figure 6 It is a tension spring.

[0026] Wherein, a rotating friction member is provided at the rotation point of the connecting fixed shaft 14; During operation, the rotating friction member is mainly used to assist hovering and ensure the stability of hovering. The rotating friction member can be a conventional rubber member or other components with friction, which will not be described in detail here. Example

[0027] like Fig.10 As shown, the difference between this embodiment and embodiment 1 is that: The fixing seat 1 and the swing arm slot plate 2 are rotatably connected with a connecting fixed shaft 14, the connecting member 4 is provided with a sliding shaft 13 and a swing arm shaft 21, the guiding member comprises a protruding block 15, the protruding block 15 is integrally formed by inward stamping after the fixing seat 1 itself is cut, the swing arm slot plate 2 and the fixing seat 1 are both vertically installed, the setting direction of the connecting fixed shaft 14 is set to be horizontal, the swing arm slot plate 2 is rotatably and horizontally installed with the swing arm shaft 21, the shaft wall of the swing arm shaft 21 is rotatably connected with a connecting member 4, the connecting member 4 is integrally arranged on the outer ring of the connecting fixed shaft 14, and the end of the connecting member 4 away from the swing arm shaft 21 is rotatably connected with the sliding shaft 13, the side of the protruding block 15 is arc-shaped and vertically arranged, the two sections of the sliding shaft 13 slide against the arc-shaped side wall of the protruding block 15, the fixing seat 1 is provided with a spring assembly for applying force to the sliding shaft 13, and the spring tension of the cam slot 12 is toward the extending direction of the cam slot 12; During operation, a raised block 15 is provided here to directly replace or equalize the effect of the cam groove 12. Such a setting here can also play the function of guiding the sliding shaft 13 to slide. The purpose of the setting here is that the processing of the cam groove 12 requires fine processing of the inner wall, which has high requirements, while the raised block 15 only needs to be laser-cut on one side and then polished on one side, and finally stamped to set the raised block 15 inside the fixed seat 1. Due to the movement direction and rotation mode of the sliding shaft 13, the shaft wall of the sliding shaft 13 will press against the side wall of the raised block 15, and can also complete the precise guiding effect, and this method is more accurate and quick for processing the curved surface.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A full-range hovering assist hinge for a refrigerator, comprising a fixing seat (1) fixedly mounted on a cabinet body and a swing arm slot plate (2) fixedly mounted on a door body (5), wherein the fixing seat (1) and the swing arm slot plate (2) are rotatably connected, and characterized in that: A spring assembly for applying force to the door body (5) throughout the entire opening and closing process is installed on the fixed seat (1); a variable elastic force adjustment mechanism for adjusting the elastic force output of the spring assembly is provided between the fixed seat (1) and the swing arm slot plate (2); the variable elastic force adjustment mechanism adjusts the elastic deformation length of the spring assembly during the opening and closing process of the door body (5); the variable elastic force adjustment mechanism comprises a connecting member (4); one end of the connecting member (4) is hinged to the swing arm slot plate (2); the other end of the connecting member (4) is connected to the spring assembly; and a guide member for driving the non-hinged end of the connecting member (4) to move is provided on the fixed seat (1).

2. The full-range hovering power-assisted hinge for a refrigerator according to claim 1, characterized in that: The initial end of the guide member is an upward arc segment, and when the connecting member (4) slides on the initial end of the guide member, the deformation length of the spring component increases.

3. The full-range hovering power-assisted hinge for a refrigerator according to claim 2, characterized in that: A connecting fixed shaft (14) is rotatably connected between the fixed seat (1) and the swing arm slot plate (2); a sliding shaft (13) and a swing arm shaft (21) are arranged on the connecting member (4); the guiding member comprises a cam sliding groove (12); the swing arm slot plate (2) and the fixed seat (1) are both vertically mounted; the connecting fixed shaft (14) is arranged in a horizontal direction; the swing arm slot plate (2) is rotatably and horizontally mounted with the swing arm shaft (21); a connecting member (4) is rotatably connected to the shaft wall of the swing arm shaft (21); the connecting member (4) is arranged as a whole on the outer side of the connecting fixed shaft (14). The connecting member (4) is provided with a sliding shaft (13) at one end thereof which is away from the swing arm shaft (21) and is rotatably connected thereto in a transverse direction. The upper and lower plate surfaces of the fixed seat (1) which are close to the swing arm slot plate (2) are provided with cam slots (12). The cam slots (12) are arc-shaped and vertically arranged. The left and right ends of the sliding shaft (13) are respectively slidably clamped in the corresponding cam slots (12). The fixed seat (1) is provided with a spring assembly for applying force to the sliding shaft (13). The spring tension of the cam slot (12) is directed toward the extending direction of the cam slot (12).

4. The full-range hovering power-assisted hinge for a refrigerator according to claim 2, characterized in that: A connecting fixed axis (14) is rotatably connected between the fixed seat (1) and the swing arm slot plate (2); a sliding axis (13) and a swing arm shaft (21) are arranged on the connecting member (4); the guiding member comprises a protruding block (15); the protruding block (15) is integrally formed by inwardly stamping after the fixed seat (1) itself is slit; the swing arm slot plate (2) and the fixed seat (1) are both vertically mounted; the connecting fixed axis (14) is arranged in a horizontal direction; the swing arm slot plate (2) is rotatably and horizontally mounted with the swing arm shaft (21); and the shaft wall of the swing arm shaft (21) is transversely A connecting member (4) is rotatably connected thereto, the connecting member (4) being integrally arranged on the outer ring of the connecting fixed shaft (14); one end of the connecting member (4) away from the swing arm shaft (21) is rotatably connected thereto with a sliding shaft (13); the side of the protruding block (15) is arc-shaped and vertically arranged; two sections of the sliding shaft (13) slide against the arc-shaped side wall of the protruding block (15); a spring assembly for applying force to the sliding shaft (13) is arranged on the fixing seat (1); and the spring tension of the cam slot (12) is directed toward the extending direction of the cam slot (12).

5. The full-range hovering power-assisted hinge for a refrigerator according to claim 1, characterized in that: The spring assembly comprises a spring body (3) and a spring action rod (30); the spring body (3) is built into the fixing seat (1); a spring mounting member (10) for limiting one end of the spring body (3) is installed in the fixing seat (1); the other end of the spring body (3) is connected to the middle position of the sliding shaft (13) via the spring action rod (30).

6. The full-range hovering power-assisted hinge for a refrigerator according to claim 2, characterized in that: A limiting ring (40) for limiting position is provided on the connecting piece (4), and the connecting piece (4) is a U-shaped groove block.

7. The full-range hovering power-assisted hinge for a refrigerator according to claim 1, characterized in that: The fixing seat (1) is provided with a plurality of seat screw holes (11) for conveniently adjusting the installation position, and the swing arm slot plate (2) is provided with a plurality of plate screw holes (20) for installation.

8. The full-range hovering power-assisted hinge for a refrigerator according to claim 1, characterized in that: A connecting fixed shaft (14) is rotatably connected between the fixing seat (1) and the swing arm slot plate (2), and a rotating friction member is provided at the rotating position of the connecting fixed shaft (14).

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