Refrigerator door body buffer structure and refrigerator

Abstract

The utility model provides a refrigerator door body buffer structure and a refrigerator, and the refrigerator door body buffer structure comprises a refrigerator body which comprises a box body and a door body; the buffering mechanism comprises a first hinge, a fixed shaft, a movable shaft and a matching part, the matching part comprises a first shell, a shaft groove and a first shaft hole, the extending direction of the shaft groove is the same as the opening and closing path of the door body connected with the shaft groove, and the width of the shaft groove is gradually decreased in the opening direction of the door body; the fixed shaft is connected into the first shaft hole in a penetrating mode, the movable shaft moves along the interior of the shaft groove, and the diameter of the movable shaft is in interference fit with part of the shaft groove. Buffering protection during opening and closing of the door body is achieved through interference fit between the diameter of the movable shaft and part of the shaft groove, so that collision damage between the door body and the refrigerator body or internal parts in the opening and closing process of the door body can be reduced, and the overall service life of the refrigerator is prolonged; the buffer device has the remarkable advantages of simple structure, low production cost, good buffer effect, high use flexibility and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a refrigerator door buffer structure and a refrigerator. Background Art

[0002] In modern refrigerator design, the stability and durability of the door is one of the key considerations. Refrigerator doors usually need to be opened and closed frequently for users to store and access food and other items. However, long-term repeated opening and closing will inevitably cause the door to frequently open at an angle of more than 90° during the opening process, which greatly increases the risk of collision with the refrigerator shell or other parts. Such collision will not only damage the surface of the door, but may also cause the internal parts to shake, loosen or even be damaged, thus affecting the overall performance of the refrigerator and shortening its service life.

[0003] In recent years, a new type of automatic door opening refrigerator has appeared on the market. They use a push rod device on the top to control the automatic opening of the door. Although this design provides convenience, it also increases the need for protection of the door body and internal parts. Because the push rod of the automatic door opening device will cause the door body to open quickly under the force, if there is no appropriate buffer mechanism, the door body is more likely to collide violently with the refrigerator shell or other parts when it reaches an angle of more than 90°. Summary of the invention

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that a refrigerator door is easily hit when it is opened, and to provide a refrigerator door buffer structure and a refrigerator.

[0005] To solve the above technical problems, the utility model provides a refrigerator door buffer structure, which includes: a refrigerator body, the refrigerator body includes a box body and at least one door body, at least one of the door bodies is rotatably connected to the box body; at least one buffer mechanism, the buffer mechanism includes: a first hinge, a fixed shaft, a movable shaft and a matching piece, the first hinge is arranged on the box body, the matching piece is arranged on the door body, the matching piece includes a first shell, an axis groove and a first axis hole, the first shell is connected to the door body, the axis groove and the first axis hole are both arranged toward the first hinge, and the axis groove is arranged around the first axis hole, wherein the extension direction of the axis groove is the same as the opening and closing path of the door body connected thereto, and the width of the axis groove gradually decreases along the opening direction of the door body; the fixed shaft and the movable shaft are both penetrated and connected to the first hinge, wherein the fixed shaft is penetrated and connected in the first axis hole, the movable shaft moves along the inside of the axis groove, and the diameter of the movable shaft is interference fit with part of the axis groove.

[0006] In one embodiment of the utility model, the first hinge includes a fixing portion and a mounting portion, the fixing portion and the mounting portion are vertically arranged to each other, the fixing portion is connected to the box body, and the fixed shaft and the movable shaft are both connected to the mounting portion.

[0007] In one embodiment of the utility model, the door body includes at least one refrigeration door and at least one freezer door. In the height direction of the box body, the refrigeration door is arranged above the freezer door, at least one buffer mechanism is arranged between the refrigeration door and the freezer door, and both ends of the fixed axis are respectively passed through and connected to the adjacent refrigeration door and the freezer door.

[0008] In one embodiment of the utility model, the side of the mating piece facing the first hinge is also provided with a first wavy surface, and the first wavy surface is arranged around the first axial hole; the refrigerator door buffer structure also includes a first power-assisting mechanism, which includes a second shell, the second shell is connected to the first hinge, and the second shell is provided with a second wavy surface on the side facing the mating piece, and when the door body rotates, the first wavy surface moves in contact with the second wavy surface.

[0009] In one embodiment of the utility model, a second axial hole and a third axial hole are further provided on the second shell, the fixed shaft passes through the second axial hole, the movable shaft passes through the third axial hole, and the second wave surface is arranged around the second axial hole.

[0010] In one embodiment of the utility model, the refrigerator door buffer structure also includes a second power-assisting mechanism, the second power-assisting mechanism includes a movable component and a limit component, the movable component is connected to the door body, and the limit component is connected to the box body, wherein the movable component includes a third shell, a movable block and an elastic member, the limit component includes a guide block, the guide block includes at least a partial guide surface, the guide surface is configured as an arc structure protruding toward the movable block, the movable block is rotatably connected to the inside of the third shell, and when the door body rotates, one end of the movable block moves in contact with the guide surface to squeeze the elastic member.

[0011] In one embodiment of the present invention, the limiting assembly further includes a second hinge, and the guide block is connected to the box body via the second hinge.

[0012] In one embodiment of the utility model, the movable block includes a connecting part, an extruding part and a moving part, the connecting part is rotatably connected to the inside of the third shell, the extruding part contacts the elastic member, and the moving part is arranged outside the third shell and contacts the guide block.

[0013] In one embodiment of the present invention, when the door body rotates 90°, the movable shaft and the shaft groove are interference fit.

[0014] The utility model also provides a refrigerator, which comprises at least one of the above-mentioned refrigerator door buffer mechanisms.

[0015] The above technical solution of the utility model has the following advantages compared with the prior art:

[0016] The refrigerator door buffer structure and the refrigerator described in the utility model limit the opening and closing degree of the door body by means of a buffer mechanism arranged between the door body and the box body, wherein the fixed shaft and the movable shaft arranged on the box body can cooperate and work synergistically with the matching parts arranged on the door body, and at the same time, the buffer protection of the door body during opening and closing is achieved by the interference fit between the diameter of the movable shaft and part of the shaft groove, thereby reducing the collision damage between the door body and the box body or internal parts during the opening and closing process, thereby improving the overall service life of the refrigerator. Compared with the conventional refrigerator structure at this stage, the present application has the significant advantages of simple structure, low production cost, good buffering effect and high flexibility of use, and is a new refrigerator door buffer structure and refrigerator with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a refrigerator in a preferred embodiment of the utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the door body and the buffer mechanism of the refrigerator shown;

[0020] Figure 3 yes Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 yes Figure 2 A top view of a matching component in the buffer mechanism;

[0022] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of part of the buffer mechanism and the first power-assisting mechanism in the refrigerator;

[0023] Figure 6 yes Figure 1 A schematic diagram showing the relative positions of the matching component and the first power-assisting mechanism in the refrigerator;

[0024] Figure 7 is part Figure 1 A schematic diagram of the three-dimensional structure of the refrigerator shown;

[0025] Figure 8 yes Figure 7 The enlarged schematic diagram of point B in the middle;

[0026] Fig. 9 yes Figure 1 A schematic diagram of the three-dimensional structure of the second power-assisting mechanism in the refrigerator shown;

[0027] Fig.10 yes Fig. 9 Schematic diagram of the internal structure of the active component;

[0028] Fig.11 yes Fig. 9 Schematic diagram of the three-dimensional structure of the middle limit assembly.

[0029] Explanation of the reference numerals in the specification: 100, refrigerator body; 110, door body; 111, refrigeration door; 112, freezer door; 120, cabinet; 200, buffer mechanism; 210, first hinge; 211, fixing portion; 212, mounting portion; 220, fixed shaft; 221, first connecting end; 222, second connecting end; 230, movable shaft; 240, fitting; 241, first shell; 242, shaft groove; 243, first shaft hole; 244, first wave surface; 300, first power-assisting mechanism; 310, second shell; 320, second wave surface; 400, second power-assisting mechanism; 410, movable assembly; 411, third shell; 412, movable block; 4121, connecting portion; 4122, extruding portion; 4123, moving portion; 413, elastic member; 420, limit assembly; 421, second hinge; 422, guide block. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0031] Embodiment 1

[0032] See also Figures 1 to 3As shown, the present embodiment provides a refrigerator door buffer structure, which includes: a refrigerator body 100, the refrigerator body 100 includes a box body 120 and at least one door body 110, at least one of the door bodies 110 is rotatably connected to the box body 120; at least one buffer mechanism 200, the buffer mechanism 200 includes: a first hinge 210, a fixed shaft 220, a movable shaft 230 and a matching piece 240, the first hinge 210 is arranged on the box body 120, the matching piece 240 is arranged on the door body 110, the matching piece 240 includes a shell, an axis groove 242 and a first axis hole 243, the shell is connected to the door body 110, The shaft groove 242 and the first shaft hole 243 are both arranged toward the first hinge 210, and the shaft groove 242 is arranged around the first shaft hole 243, wherein the extension direction of the shaft groove 242 is the same as the opening and closing path of the door body 110 connected thereto, and the width of the shaft groove 242 gradually decreases along the opening direction of the door body 110; the fixed shaft 220 and the movable shaft 230 are both penetrated and connected to the first hinge 210, wherein the fixed shaft 220 is penetrated and connected in the first shaft hole 243, the movable shaft 230 moves along the inside of the shaft groove 242, and the diameter of the movable shaft 230 is interference fit with part of the shaft groove 242.

[0033] The refrigerator door buffer structure described in the present embodiment limits the opening and closing degree of the door body 110 by means of a buffer mechanism 200 arranged between the door body 110 and the box body 120, wherein the fixed shaft 220 and the movable shaft 230 arranged on the box body 120 can cooperate and work together with the matching piece 240 arranged on the door body 110, and at the same time, the buffer protection of the door body 110 during opening and closing is achieved through the interference fit between the diameter of the movable shaft 230 and the partial shaft groove 242, thereby reducing the collision damage between the door body 110 and the box body 120 or internal parts during the opening and closing process, thereby improving the overall service life of the refrigerator. Compared with the conventional refrigerator structure at this stage, the present application has the significant advantages of simple structure, low production cost, good buffering effect and high flexibility of use, and is a new type of refrigerator door buffer structure with broad application prospects.

[0034] See also Figure 1 and Figure 2As shown, the door body 110 includes at least one refrigerating door 111 and at least one freezing door 112. In the height direction of the box body 120, the refrigerating door 111 is arranged above the freezing door 112 at intervals. At least one buffer mechanism 200 is arranged between the refrigerating door 111 and the freezing door 112. The two ends of the fixed shaft 220 are respectively connected to the adjacent refrigerating door 111 and the freezing door 112. In this embodiment, the door body 110 includes two refrigerating doors 111 and two freezing doors 112. Accordingly, two buffer mechanisms 200 are provided in this embodiment. The two buffer mechanisms 200 are correspondingly arranged between the refrigerating door 111 and the freezing door 112 arranged at intervals in the height direction of the box body 120. Further, the two buffer mechanisms 200 in this embodiment are used to buffer the opening and closing of the two refrigerating doors 111. In other embodiments, other numbers of buffer mechanisms 200 can also be provided according to actual use requirements, thereby achieving buffering of the freezing door 112 or a better buffering effect.

[0035] See also Figure 3 and Figure 4 As shown, the first shell 241 in the fitting 240 is inserted and connected to the lower surface of the refrigerator door 111 , and its bottom is located in the same horizontal plane as the bottom of the refrigerator door 111 , and the shaft groove 242 is arranged toward the side of the freezer door 112 . In this embodiment, the first hinge 210 includes a fixed portion 211 and a mounting portion 212, and the fixed portion 211 and the mounting portion 212 are arranged perpendicular to each other, the fixed portion 211 is connected to the box body 120, and the fixed shaft 220 and the movable shaft 230 are both connected to the mounting portion 212. Specifically, the fixed shaft 220 in this embodiment includes a first connecting end 221 and a second connecting end 222 located on both sides of the first hinge 210, and the first connecting end 221 and the second connecting end 222 have the same length, wherein the first connecting end 221 is connected to the refrigeration door 111 after passing through the first shaft hole 243 in the matching piece 240, and the second connecting end 222 is inserted into the freezer door 112, and the movable shaft 230 extends in the same direction as the fixed shaft 220, but the movable shaft 230 is only located on one side of the first connecting end 221.

[0036] Furthermore, in the present embodiment, the first shaft hole 243 is a circular through hole, and the shaft groove 242 is configured as an irregular arc-shaped blind groove, one end of which is wider and the other end is narrower, and the width between the two ends changes evenly, and when the door body 110 is in a closed state, the movable shaft 230 is located at its wider end, and when the door body 110 gradually opens and closes, the movable shaft 230 gradually moves toward its narrower end along the shaft groove 242. Specifically, when the door body 110 rotates 90°, the movable shaft 230 and the shaft groove 242 are interference-fitted, and thus, when the door body 110 rotates more than 90°, the shaft groove 242 and the movable shaft 230 are mutually squeezed, thereby limiting the rotation process of the door body 110, thereby achieving a buffering effect on the door body 110. During daily use, the opening and closing angle of the door body 110 usually does not exceed 110°. Therefore, in other embodiments, the critical point of the opening and closing buffer angle of the door body 110 can be adjusted by changing the shape of the shaft groove 242, and the present invention does not impose specific restrictions on this.

[0037] The refrigerator in this embodiment has an automatic door opening function. Therefore, when the door is automatically opened, a corresponding power-assisting mechanism is required to further guide the movement of the refrigerator. Figure 5 and Figure 6As shown, the side of the matching piece 240 facing the first hinge 210 is also provided with a first wavy surface 244, and the first wavy surface 244 is arranged around the first axial hole 243; the refrigerator door buffer structure also includes a first power-assisting mechanism 300, which includes a second shell 310, and the second shell 310 is connected to the first hinge 210, and the second shell 310 is provided with a second wavy surface 320 on the side facing the matching piece 240. When the door body 110 rotates, the first wavy surface 244 moves in contact with the second wavy surface 320. Furthermore, a second axial hole and a third axial hole are also provided on the second shell 310, the fixed shaft 220 passes through the second axial hole, the movable shaft 230 passes through the third axial hole, and the second wavy surface 320 is arranged around the second axial hole. In this embodiment, when the door body 110 rotates, the first wave surface 244 can move along the shape of the second wave surface 320, and squeeze each other through the thrust, and produce a movement in the height direction. When the thrust is removed, the relative movement process of the first wave surface 244 and the second wave surface 320 has passed the position where the extrusion force is the largest, thereby enabling the first wave surface 244 to produce a downward sliding guide relative to the second wave surface 320, thereby achieving the moving inertia after the thrust is removed, and ensuring that the door body 110 can be opened smoothly. Specifically, the refrigerator body 100 in this embodiment realizes the automatic door opening function through a push rod, which includes at least one push rod, and at least one of the push rods is arranged between the box body 120 and the door body 110. Furthermore, under the interaction between the first wave surface 244 and the second wave surface 320, the relative height movement of the door body 110 is 1 mm or less, and this movement range is within the assembly gap range of the door body 110, thereby not affecting the service life of the door body 110.

[0038] To further ensure the automatic opening and closing effect of the door body 110, the present embodiment further provides a second assist mechanism 400, see Figures 7 to 11As shown, the second assist mechanism 400 includes a movable assembly 410 and a limiting assembly 420, wherein the movable assembly 410 is connected to the door body 110, and the limiting assembly 420 is connected to the box body 120, wherein the movable assembly 410 includes a third shell 411, a movable block 412 and an elastic member 413, and the limiting assembly 420 includes a guide block 422, wherein the guide block 422 includes at least a portion of a guide surface, wherein the guide surface is configured as an arc-shaped structure protruding toward the movable block 412, and the movable block 412 is rotatably connected to the inside of the third shell 411, and when the door body 110 rotates, one end of the movable block 412 moves in contact with the guide surface to squeeze the elastic member 413. Further, the limiting assembly 420 also includes a second hinge 421, and the guide block 422 is connected to the box body 120 through the second hinge 421. Specifically, the movable block 412 includes a connecting portion 4121, an extruding portion 4122 and a moving portion 4123. The connecting portion 4121 is rotatably connected to the inside of the third shell 411, the extruding portion 4122 is in contact with the elastic member 413, and the moving portion 4123 is arranged outside the third shell 411 and in contact with the guide block 422. Based on the arrangement of the second power-assisting mechanism 400, when the refrigerator is opened or closed, the movable block 412 can move along the guide surface. When the thrust is removed, the elastic member 413 can push the movable block 412 to open smoothly under the guidance of the guide block 422. In this embodiment, the first power-assisting mechanism 300 and the second power-assisting mechanism 400 cooperate with each other, thereby ensuring that the refrigerator door 110 can achieve the effect of automatically opening the door.

[0039] Embodiment 2

[0040] This embodiment provides a refrigerator, which includes at least one buffer mechanism 200 of the refrigerator door 110 described in the first embodiment.

[0041] In summary, the refrigerator door buffer structure and the refrigerator described in the present invention limit the opening and closing degree of the door body 110 by means of the buffer mechanism 200 arranged between the door body 110 and the box body 120, wherein the fixed shaft 220 and the movable shaft 230 arranged on the box body 120 can cooperate and work together with the matching piece 240 arranged on the door body 110, and at the same time, the buffer protection of the door body 110 during opening and closing is achieved through the interference fit between the diameter of the movable shaft 230 and the partial shaft groove 242, thereby reducing the collision damage between the door body 110 and the box body 120 or internal parts during the opening and closing process, thereby improving the overall service life of the refrigerator. Compared with the conventional refrigerator structure at this stage, the present application has the significant advantages of simple structure, low production cost, good buffering effect and high flexibility of use, and is a new refrigerator door buffer structure and refrigerator with broad application prospects.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A refrigerator door buffer structure, characterized in that: include: A refrigerator body, the refrigerator body comprising a box body and at least one door body, at least one of the door bodies being rotatably connected to the box body; At least one buffer mechanism, the buffer mechanism comprising: a first hinge, a fixed axis, a movable axis and a matching piece, the first hinge is arranged on the box body, the matching piece is arranged on the door body, the matching piece comprises a first shell, an axis groove and a first axis hole, the first shell is connected to the door body, the axis groove and the first axis hole are both arranged toward the first hinge, and the axis groove is arranged around the first axis hole, wherein the extension direction of the axis groove is the same as the opening and closing path of the door body connected thereto, and the axis groove width gradually decreases along the opening direction of the door body; the fixed axis and the movable axis are both penetrated and connected to the first hinge, wherein the fixed axis is penetrated and connected in the first axis hole, the movable axis moves along the inside of the axis groove, and the diameter of the movable shaft is interference fit with part of the axis groove.

2. The refrigerator door buffer structure according to claim 1, characterized in that: The first hinge includes a fixing portion and a mounting portion, the fixing portion and the mounting portion are vertically arranged with respect to each other, the fixing portion is connected to the box body, and the fixing shaft and the movable shaft are both connected to the mounting portion.

3. The refrigerator door buffer structure according to claim 1, characterized in that: The door body includes at least one refrigeration door and at least one freezer door. In the height direction of the box body, the refrigeration door is arranged above the freezer door, at least one buffer mechanism is arranged between the refrigeration door and the freezer door, and both ends of the fixed axis are respectively passed through and connected to the adjacent refrigeration door and the freezer door.

4. The refrigerator door buffer structure according to claim 1, characterized in that: The side of the mating piece facing the first hinge is also provided with a first wavy surface, and the first wavy surface is arranged around the first axial hole; the refrigerator door buffer structure also includes a first power-assisting mechanism, which includes a second shell, the second shell is connected to the first hinge, and the side of the second shell facing the mating piece is provided with a second wavy surface, when the door body rotates, the first wavy surface moves in contact with the second wavy surface.

5. The refrigerator door buffer structure according to claim 4, characterized in that: The second shell is further provided with a second axial hole and a third axial hole, the fixed shaft passes through the second axial hole, the movable shaft passes through the third axial hole, and the second wave surface is arranged around the second axial hole.

6. The refrigerator door buffer structure according to claim 1, characterized in that: The refrigerator door buffer structure also includes a second power-assisting mechanism, which includes a movable component and a limit component, wherein the movable component is connected to the door body, and the limit component is connected to the box body, wherein the movable component includes a third shell, a movable block and an elastic member, and the limit component includes a guide block, wherein the guide block includes at least a portion of a guide surface, and the guide surface is configured as an arc-shaped structure protruding toward the movable block, and the movable block is rotatably connected to the inside of the third shell, and when the door body rotates, one end of the movable block moves in contact with the guide surface to squeeze the elastic member.

7. The refrigerator door buffer structure according to claim 6, characterized in that: The limiting assembly also includes a second hinge, and the guide block is connected to the box body through the second hinge.

8. The refrigerator door buffer structure according to claim 6, characterized in that: The movable block includes a connecting portion, a pressing portion and a moving portion, the connecting portion is rotatably connected to the inside of the third shell, the pressing portion is in contact with the elastic member, and the moving portion is arranged outside the third shell and in contact with the guide block.

9. The refrigerator door buffer structure according to claim 1, characterized in that: When the door body rotates 90°, the movable shaft is interference fit with the shaft groove.

10. A refrigerator, characterized in that: The refrigerator comprises at least one refrigerator door buffer mechanism as claimed in any one of claims 1 to 9.

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