Door opening structure and refrigerator

Abstract

The utility model discloses a door opening structure and refrigerator, including single leaf door opening structure, the single leaf door opening structure includes door body, sliding slot and positioning shaft, the positioning shaft includes first positioning shaft, second positioning shaft, the sliding slot includes juxtaposing first sliding slot and second sliding slot, first positioning shaft with first sliding slot sliding cooperation, second positioning shaft with second sliding slot sliding cooperation, first sliding slot is connected with first arc -shaped groove, when the door body rotates around second positioning shaft, first positioning shaft slides along first arc -shaped groove. The utility model discloses through setting up juxtaposing sliding slot, arc -shaped groove and multiple positioning shaft on the door body, realizes the stable switching of door body under two kinds of modes of rotating door opening and translation door opening. Under translation mode, through drive rod, guide slot, drive shaft and rocker -motor structure, the linear displacement of door body is effectively converted to the rotary motion of motor.

Description

Technical Field

[0001] This utility model relates to the field of door equipment technology, and in particular to door opening structure and refrigerator. Background Technology

[0002] Most refrigerators currently in consumer use have doors that open by rotating around an axis, which meets the needs of most usage scenarios. However, when users need to disassemble the refrigerator for cleaning or when repairmen need to repair it, the rotating door often cannot stay in the open position due to uneven ground, affecting the operation for both users and repairmen.

[0003] Patent CN223345758U provides a new type of hinge and door structure, enabling the refrigerator to open to a maximum angle of 130 degrees. While this facilitates operation to some extent, it is still a pivot door structure, and there is still a possibility that the door may not be able to stop, thus affecting user experience.

[0004] Of course, some refrigerator doors use a sliding opening method, where the refrigerator door panel slides along the plane of the refrigerator door to the side of the refrigerator door. Although this can solve the above problems, this sliding opening method is inconvenient and not as convenient and easy to use as a rotating door. Utility Model Content

[0005] To solve at least one of the above-mentioned technical problems, on the one hand, this utility model provides a door opening structure with two opening methods: rotation and translation, thereby meeting the needs of different door opening states.

[0006] On the other hand, this utility model also proposes a refrigerator having the aforementioned door opening structure.

[0007] The technical solution adopted by this utility model is to design a door opening structure, including a single-leaf door opening structure. The single-leaf door opening structure includes a door body, a sliding track, and a positioning shaft. The positioning shaft includes a first positioning shaft and a second positioning shaft. The sliding track includes a first sliding track and a second sliding track in parallel. The first positioning shaft is slidably engaged with the first sliding track, and the second positioning shaft is slidably engaged with the second sliding track. The first sliding track is connected to a first arc-shaped groove. When the door body rotates around the second positioning shaft, the first positioning shaft slides along the first arc-shaped groove.

[0008] In some embodiments, a door frame is also included, the slide is located on the end side of the door body, and the positioning shaft is located on the door frame.

[0009] In some embodiments, the slide rail further includes a third slide rail, and the positioning shaft further includes a third positioning shaft. The third positioning shaft is slidably engaged with the third slide rail. The third slide rail is connected to a third arc-shaped slide rail. The third arc-shaped slide rail is concentric with the first arc-shaped slide rail. The first slide rail and the second slide rail are located on the same side of the door body. The third slide rail and the first slide rail are located on opposite sides of the door body, respectively.

[0010] In some embodiments, a movement control device is also included to drive the door body to translate along the slide rail direction.

[0011] In some embodiments, the movement control device includes a drive mechanism that is rotatably connected to the door body via a drive shaft. The drive shaft and the first positioning shaft are located on opposite sides of the door body, and when the door body rotates around the first positioning shaft, the drive shaft and the first positioning shaft are concentric.

[0012] In some embodiments, the driving mechanism includes a driving rod and a guide groove. The driving rod is provided with a guide post that slides with the guide groove. The first end of the driving rod is connected to the driving shaft, and the second end of the driving rod is driven by a driving device, thereby causing the driving shaft to move along the direction of the groove.

[0013] In some embodiments, the system includes two single-leaf door structures, with the door bodies of the two single-leaf door structures arranged opposite each other in the direction of the sliding groove. The second ends of the two drive rods are rotatably connected to the same connecting shaft, which is slidably engaged in a positioning groove. The positioning groove is perpendicular to the translation direction of the door body, and the drive device drives the connecting shaft to move along the positioning groove.

[0014] In some embodiments, the drive device includes a rocker arm and a motor for controlling the rotation of the rocker arm, the rocker arm having a through groove along its length, through which the connecting shaft slides.

[0015] In some embodiments, the drive rod is an L-shaped rod with two mutually perpendicular rod segments, the guide post is located at the bend of the L-shaped rod, and when the two doors are closed, the rod segments of the two L-shaped rods connected to the connecting shaft are collinear.

[0016] A refrigerator, wherein the door of the refrigerator includes the aforementioned door opening structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This invention achieves stable switching between rotating and sliding opening modes by incorporating parallel sliding grooves, arc-shaped grooves, and multiple positioning shafts on the door body. In sliding mode, the rotational motion of the motor is effectively converted into linear displacement of the door body through a drive rod, guide groove, drive shaft, and rocker-motor structure. In the double-door structure, the two drive rods are linked by a common connecting shaft, maintaining synchronization during the sliding process and preventing door tilting or jamming. This invention not only solves the problem of traditional refrigerator doors being unable to stop during maintenance or cleaning but also overcomes the inconvenience of a single sliding opening method, achieving a multi-mode opening function that combines rotation and sliding, significantly improving ease of use and adaptability. Attached Figure Description

[0018] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings. To illustrate the details and facilitate understanding of its principles, the drawings are not necessarily to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Wherein: Figure 1 This is a schematic diagram of the door in the closed state.

[0019] Figure 2 This is a schematic diagram of the door's translation.

[0020] Figure 3 This is a schematic diagram of the door after it has been completely moved to both sides.

[0021] Figure 4 This is a schematic diagram of the door after it has been rotated and opened.

[0022] Figure 5 This is a schematic diagram of the upper side of the door.

[0023] Figure 6 This is a schematic diagram of the lower side of the door.

[0024] Figure 7 This is a schematic diagram of the box after the door has been removed.

[0025] Figure 8 This is a schematic diagram of the upper hinge plate.

[0026] Figure 9 This is a schematic diagram of the lower hinge plate.

[0027] Figure 10 This is a 3D diagram of a refrigerator.

[0028] Figure 11 yes Figure 10 An enlarged schematic diagram of the upper side.

[0029] Figure 12 yes Figure 10A diagram showing the refrigerator door after it has been rotated and opened.

[0030] Figure 13 yes Figure 11 An enlarged schematic diagram of the upper side.

[0031] Figure 14 This is a diagram of a joystick.

[0032] Figure 15 This is a schematic diagram of two drive rods.

[0033] Figure 16 This is a diagram showing the refrigerator door sliding open.

[0034] Figure 17 This is a diagram showing the refrigerator doors completely slid to both sides.

[0035] In the diagram, 1. Door body; 2. First positioning shaft; 3. Second positioning shaft; 4. First sliding groove; 5. Second sliding groove; 6. First arc-shaped groove; 7. Third sliding groove; 8. Third positioning shaft; 9. Third arc-shaped groove; 10. Drive rod; 11. Guide groove; 12. Guide column; 13. Drive shaft; 14. Connecting shaft; 15. Positioning groove; 16. Rocker arm; 17. Motor; 18. Through groove; 19. Lower hinge plate; 20. Upper hinge plate; 21. Box body. Detailed Implementation

[0036] The following are specific embodiments of this utility model, and the technical solution of this utility model will be further described with reference to the accompanying drawings. However, this utility model is not limited to these embodiments, and the following embodiments do not limit the utility model involved in the claims. In addition, all combinations of features described in the embodiments are not necessarily necessary for the solution of the utility model.

[0037] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0038] Example like Figure 1 , 2As shown in Figures 3, 4, 5, and 6, the door opening structure includes a single-leaf door opening structure for controlling the opening and closing of a door body 1. The single-leaf door opening structure includes a door body 1, a sliding track, and a positioning shaft. The positioning shaft includes a first positioning shaft 2 and a second positioning shaft 3. The sliding track includes a first sliding track 4 and a second sliding track 5 arranged in parallel. The first positioning shaft 2 is slidably engaged with the first sliding track 4, and the second positioning shaft 3 is slidably engaged with the second sliding track 5. The first sliding track 4 is connected to a first arc-shaped groove 6. When the door body 1 rotates around the second positioning shaft 3, the first positioning shaft 2 slides along the first arc-shaped groove 6. At this time, the axis of the second positioning shaft 3 is equivalent to the center of the first arc-shaped groove 6, and the distance between the first positioning shaft 2 and the second positioning shaft 3 is equal to the radius of the first arc-shaped groove 6. When the door body 1 moves in the direction of the slide groove, since the first positioning shaft 2 and the second positioning shaft 3 are not coaxial, when the first positioning shaft 2 and the second positioning shaft 3 are respectively located in the two parallel first slide grooves 4 and the second slide groove 5, the door body 1 cannot rotate around the positioning shaft, but can only move in the direction of the slide groove.

[0039] The door opening structure described in this embodiment is applied to a refrigerator door. The door body 1 is the door panel of the refrigerator. The sliding groove is located on the end side of the door body 1. The first sliding groove 4 and the second sliding groove 5 are located on the lower end side of the door body 1. The positioning shaft is located on the door frame of the refrigerator door, which is equivalent to the door pivot of a traditional refrigerator door.

[0040] In other words, the door opening structure in this embodiment simultaneously possesses both rotating and sliding opening functions. Its core lies in the parallel first and second sliding grooves 4 and 5 arranged on the end side of the door body 1, and the first and second positioning shafts 2 and 3 fixed to the door frame. The first positioning shaft 2 slides into the first sliding groove 4, and the second positioning shaft 3 slides into the second sliding groove 5. When the user needs to use the rotating opening method, the door body 1 can rotate around the second positioning shaft 3. At this time, as the door body 1 rotates, the first positioning shaft 2 is guided into the first arc-shaped groove 6 connected to the first sliding groove 4, and moves along the arc-shaped trajectory of the first arc-shaped groove 6. Since the center of the first arc-shaped groove 6 corresponds to the axis of the second positioning shaft 3, and its radius is equal to the fixed distance between the first positioning shaft 2 and the second positioning shaft 3, the sliding trajectory of the first positioning shaft 2 in the arc-shaped groove ensures that the door body 1 can rotate smoothly and steadily around the second positioning shaft 3, achieving a rotating opening method similar to a traditional refrigerator door.

[0041] When users need to clean or repair the internal accessories of the refrigerator, they can switch the door 1 from rotation mode to sliding mode. Specifically, after the door 1 is closed or fully open, the user can push the door 1 to move it along the slide track. Since the first positioning shaft 2 and the second positioning shaft 3 are not coaxial in structure, and during the sliding operation, they respectively enter and remain in two parallel slide tracks 4 and 5, the double-point constraint formed by the two positioning shafts restricts the rotational freedom of the door 1 relative to the positioning shafts, so that the door 1 can only slide along the slide track and cannot rotate. With this structural design, the door 1 can remain stable, without shaking or automatically wobbling during the sliding process, and the user can freely choose the sliding opening method according to the operating scenario.

[0042] Through the above design, the door opening structure overcomes the problems of traditional doors that can only be opened by rotating, cannot be suspended, or are affected by uneven ground and will close automatically; it also avoids the shortcomings of existing simple sliding door structures that are inconvenient to operate and have a single opening method. The door 1 can be easily opened by rotating like a traditional refrigerator door, and can also be smoothly slid when maintenance or cleaning is needed, thus significantly improving the convenience and adaptability of the refrigerator in daily use and maintenance.

[0043] Furthermore, such as Figure 7 , 8 As shown in Figures 9 and 1, the sliding groove further includes a third sliding groove 7, and the positioning shaft further includes a third positioning shaft 8. The third positioning shaft 8 is slidably engaged with the third sliding groove 7. In this embodiment, the third sliding groove 7 is located on the upper side of the door body 1, and the third positioning shaft 8 is located on the refrigerator door frame. The third sliding groove 7 is connected to a third arc-shaped sliding groove, and the third arc-shaped sliding groove is concentric with the first arc-shaped sliding groove. The third sliding groove 7 and the first sliding groove 4 are respectively located on opposite sides of the door body 1. When the door body 1 rotates around the second pivot, the third positioning shaft slides along the third arc-shaped groove 9. At this time, the axis of the second positioning shaft 3 is equivalent to the center of the third arc-shaped groove 9, and the distance between the third positioning shaft and the second positioning shaft 3 is equal to the radius of the third arc-shaped groove 9. In this embodiment, the first positioning shaft and the second positioning shaft are located on the lower hinge plate 19, which is fixedly connected to the lower part of the door frame, and the third positioning shaft 8 is located on the upper hinge plate 20, which is fixedly connected to the upper part of the door frame. The third arc-shaped groove 9 is an opening groove that connects to the outside at the end, so that when the door body 1 rotates, the third positioning shaft 8 can rotate outside the arc-shaped groove.

[0044] In other words, this embodiment further includes a third sliding groove 7 located on the upper side of the door body 1, and a third positioning shaft 8 that slides and engages with it on the refrigerator door frame. The third sliding groove 7 is also connected to a third arc-shaped groove 9, the center of which corresponds to the axis of the second positioning shaft 3, and the radius of the arc-shaped groove is consistent with the fixed distance between the second positioning shaft 3 and the third positioning shaft. When the door body 1 adopts a rotating opening method, the second positioning shaft 3 serves as the rotation center, and the third positioning shaft moves along an arc trajectory in the third arc-shaped groove 9, forming a double arc-shaped guide structure with the movement of the first positioning shaft 2 on the lower side in the first arc-shaped groove 6. Through the synergistic effect of the upper and lower sets of arc-shaped grooves, the door body 1 is guided by two sets of constraint forces during rotation, enabling it to rotate more stably and accurately around the second positioning shaft 3, avoiding the shaking, tilting, or jamming problems that may occur with unilateral guidance. At the same time, since the first sliding groove 4 and the third sliding groove 7 are located on both sides of the door body 1 respectively, their symmetrical arrangement structurally improves the overall support rigidity of the door body 1, making the rotating opening process more balanced and smooth. This embodiment further improves the stability and reliability of the door body 1 in rotation mode, thereby enhancing the user experience and durability of the overall door opening structure.

[0045] Furthermore, such as Figure 10 , 11 As shown in Figures 12 and 13, this embodiment further includes a movement control device for driving the door 1 to move along the slide rail direction. This movement control device can be, for example, an automated drive device consisting of one or more combinations of an electric drive module, a linear push rod, a rack and pinion mechanism, or a lead screw transmission mechanism—any device capable of automatically driving the door 1 to move, thus facilitating the automated sliding opening of the door. When the user needs to switch the door 1 from a rotating opening mode to a sliding mode, the movement control device actively outputs thrust, causing the first positioning shaft 2 and the second positioning shaft 3 (and possibly a third positioning shaft) to enter their respective linear slide rails and achieve controlled linear movement along the slide rail direction. Through this active drive method, the door 1 can move smoothly during the sliding process without relying on external force applied by the user, thus avoiding the shaking, deflection, or jamming that may occur with manual pushing. This movement control device not only improves the convenience of the sliding opening method but also enables functions such as speed control, soft start, or obstacle detection as needed, further enhancing the safety and intelligence level of the door opening structure. Overall, the device significantly improves the controllability and user experience of the sliding operation of the door 1, making the multi-mode door opening structure more complete and practical.

[0046] Furthermore, the movement control device includes a drive mechanism, which is rotatably connected to the door body 1 via a drive shaft 13. The drive shaft 13 and the first positioning shaft 2 are located on opposite sides of the door body 1, that is, the drive shaft 13 is rotatably connected to the upper end of the door body 1. When the door body 1 rotates around the first positioning shaft 2, the drive shaft 13 is concentric with the first positioning shaft 2, so that the door body 1 can rotate around the drive shaft 13.

[0047] In other words, the drive mechanism is rotatably connected to the door body 1 via the drive shaft 13. The drive shaft 13 and the first positioning shaft 2 are respectively arranged on opposite sides of the door body 1, giving the door body 1 two rotation reference points, one above the other. When the door body 1 is in the rotating opening mode, the door body 1 rotates around the first positioning shaft 2 as its main center of rotation. Since the drive shaft 13 and the first positioning shaft 2 remain concentric during rotation, their axes always coincide, allowing the drive shaft 13 to rotate synchronously with the door body 1 in rotation mode without any offset or additional resistance, thus maintaining a stable rotation trajectory for the door body 1. Through this structural arrangement, the drive mechanism does not interfere with the rotation function of the door body 1 around the first positioning shaft 2, maximizing the smoothness of the rotating opening. When the door body 1 needs to switch to the sliding mode, the drive mechanism can be activated, and the drive shaft 13 outputs power to the door body 1, causing the door body 1 to move linearly along the slide rail direction.

[0048] Furthermore, the driving mechanism includes a driving rod 10 and a guide groove 11. The driving rod 10 is provided with a guide post 12 that slides with the guide groove 11. The first end of the driving rod 10 is connected to the driving shaft 13, and the second end of the driving rod 10 is driven by a driving device, thereby causing the driving shaft 13 to translate along the direction of the groove.

[0049] The guide post 12 slides within the guide groove 11, providing precise directional constraints for the movement of the drive rod 10. The first end of the drive rod 10 is connected to the drive shaft 13. When the drive rod 10 moves under the constraint of the guide groove 11, it directly drives the drive shaft 13 to translate synchronously along the groove direction. The second end of the drive rod 10 is connected to the drive device. When the drive device outputs thrust, its effect is transmitted to the drive shaft 13 through the drive rod 10, causing the drive shaft 13 to produce a directional linear displacement. Because the guide post 12 slides within the guide groove 11, the direction of movement of the drive rod 10 is restricted, thus preventing swaying, lateral deviation, or rotational torque during the driving process, ensuring stable and reliable displacement of the drive shaft 13.

[0050] Furthermore, the device includes two single-leaf opening door structures. The door bodies 1 of the two single-leaf opening door structures are arranged opposite each other in the direction of the sliding groove. The second ends of the two drive rods 10 are rotatably connected to the same connecting shaft 14. The connecting shaft 14 is slidably engaged in the positioning groove 15. The positioning groove 15 is perpendicular to the translation direction of the door body 1. The drive device drives the connecting shaft 14 to move along the positioning groove 15.

[0051] In other words, the refrigerator in this embodiment is a double-door refrigerator, and each door 1 has one of the above-mentioned single-door opening structures, so that the two doors 1 can open to each other in the sliding groove direction, and the two single-door opening structures have the same structural features.

[0052] The second ends of the two single-leaf opening drive rods 10 are rotatably connected to the same connecting shaft 14, so that the movements of the two drive rods 10 during the driving process are synchronously transmitted through the connecting shaft 14. The connecting shaft 14 is slidably fitted in the positioning groove 15 on the door frame. The extension direction of the positioning groove 15 is perpendicular to the translation direction of the door body 1, so that the movement trajectory of the connecting shaft 14 is restricted to a vertical guiding movement. The drive device is used to drive the connecting shaft 14 to move within the positioning groove 15. When the connecting shaft 14 moves up or down, it will simultaneously drive the two drive rods 10 to rotate or linearly displace accordingly, so that the two door bodies 1 can synchronously translate along their respective sliding groove directions, realizing the relative distance or proximity of the two door bodies 1, thereby opening or closing the refrigerator door.

[0053] This structure not only ensures that both doors 1 maintain a consistent moving speed and displacement in the sliding opening mode, avoiding problems such as jamming, tilting, or uncoordinated movement caused by unilateral force or asynchronous drive, but also, the linear sliding guide of the connecting shaft 14 makes the driving action more stable, enabling unified control and coordinated opening and closing of both doors 1. This linkage design gives the double door structure higher structural stability and ease of use in the sliding mode, further improving the mechanical coordination and overall performance of the entire door opening structure.

[0054] Furthermore, such as Figure 14 , 16As shown in Figure 17, the driving device in this embodiment further includes a rocker arm 16 and a motor 17 for controlling the rotation of the rocker arm 16. The end of the rocker arm 16 is connected to the rotating shaft of the motor 17, so that the rocker arm 16 is driven by the motor 17 to achieve reciprocating swing. A through groove 18 is provided on the rocker arm 16 along its length direction. A connecting shaft 14 passes through the through groove 18 and slides in contact with the through groove 18. After passing through the through groove 18, the connecting shaft 14 slides in contact with the positioning groove 15. When the motor 17 drives the rocker arm 16 to rotate, since the connecting shaft 14 is restricted to linear movement within the positioning groove 15, the swing of the rocker arm 16 will change the position of the sliding contact point within the through groove 18, thereby converting the rotational motion of the rocker arm 16 into the linear reciprocating motion of the connecting shaft 14. The driving mechanism and driving device are located at the top of the refrigerator body 21.

[0055] Through this structural design, the rotational power output by the motor 17 can be effectively guided into linear displacement along the positioning groove 15, and further driven synchronously by the connecting shaft 14 to generate corresponding linear motion of the two drive rods 10, so that the two door bodies 1 maintain consistent displacement and speed in the sliding door opening mode.

[0056] The rocker arm 16 drive mechanism has a simple structure and high transmission efficiency. It can establish a reliable power transmission path while ensuring the synchronous translation of the two doors 1, thereby further improving the operational stability and ease of use of the overall door opening structure.

[0057] Furthermore, such as Figure 15 As shown, the drive rod 10 in this embodiment is an L-shaped rod with two mutually perpendicular segments. The guide post 12 is located at the bend of the L-shaped rod, and the guide post 12 is slidably engaged with the guide groove 11, thereby enabling the drive rod 10 to obtain precise movement direction constraints in the guide groove 11. The guide post 12 can rotate relative to the guide groove 11, which can adapt to the posture changes of the L-shaped rod during the driving process. The connecting shaft 14 is connected to one end of the L-shaped rod, and the drive shaft 13 is connected to the other end of the L-shaped rod. The rocker arm 16 swings, thereby driving the connecting shaft 14 to move along the positioning groove 15 through the through groove 18, which in turn causes the guide post 12 to move along the guide groove 11, and simultaneously causes the drive shaft 13 to drive the door body 1 to translate.

[0058] When both doors 1 are closed, the segments of the two L-shaped drive rods 10 connected to the connecting shaft 14 are arranged collinearly, while the other two segments are parallel to each other. At this time, the two drive rods 10 and the two doors 1 are equivalent to a rectangular frame. The two segments of the L-shaped drive rods 10 are parallel to the two sides of the top of the refrigerator. Thus, when the refrigerator door is closed, the drive rods 10 can be retracted to the top of the refrigerator, so as not to affect the overall shape of the refrigerator.

[0059] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0060] Although this document uses a number of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention. The order of actions, steps, etc., in the apparatus and methods shown in the specification and drawings can be implemented in any order unless a specific order is explicitly specified, and as long as the output of a preceding process is not used in a subsequent process. Similar sequential terms used for descriptive convenience (e.g., "firstly," "next," "secondly," "again," "then," etc.) do not imply that the actions must be performed in such an order.

[0061] Those skilled in the art will understand that all directional references (e.g., above, below, up, up, down, down, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the drawings to aid the reader's understanding and do not imply (e.g., a limitation on the scope of the invention as defined by the appended claims) a limitation on the scope of the invention as defined by the appended claims. They are merely for the purpose of facilitating the description of the application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation. The directional terms "inside" and "outside" refer to inside or outside relative to the outline of the respective components themselves.

[0062] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0063] Additionally, some vague terms (e.g., substantially, certain, generally, etc.) may refer to slight inaccuracies or minor deviations in conditions, quantities, values, or dimensions, some of which are within manufacturing tolerances or limits. It should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components; unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

Claims

1. A door opening structure, characterized in that, The device includes a single-leaf door structure, comprising a door body, a sliding track, and a positioning shaft. The positioning shaft includes a first positioning shaft and a second positioning shaft. The sliding track includes a first sliding track and a second sliding track arranged in parallel. The first positioning shaft slides into the first sliding track, and the second positioning shaft slides into the second sliding track. The first sliding track is connected to a first arc-shaped groove. When the door body rotates around the second positioning shaft, the first positioning shaft slides along the first arc-shaped groove.

2. The door opening structure according to claim 1, characterized in that, It also includes a door frame, the slide is located on the end side of the door body, and the positioning shaft is located on the door frame.

3. The door opening structure according to claim 1, characterized in that, The slide rail also includes a third slide rail, and the positioning shaft also includes a third positioning shaft. The third positioning shaft is slidably engaged with the third slide rail. The third slide rail is connected to a third arc-shaped slide rail. The third arc-shaped slide rail is concentric with the first arc-shaped slide rail. The first slide rail and the second slide rail are located on the same side of the door body. The third slide rail and the first slide rail are located on opposite sides of the door body.

4. The door opening structure according to claim 3, characterized in that, It also includes a movement control device for driving the door body to translate along the slide rail direction.

5. The door opening structure according to claim 4, characterized in that, The movement control device includes a drive mechanism, which is rotatably connected to the door body via a drive shaft. The drive shaft and the first positioning shaft are located on opposite sides of the door body, and when the door body rotates around the first positioning shaft, the drive shaft and the first positioning shaft are concentric.

6. The door opening structure according to claim 5, characterized in that, The driving mechanism includes a driving rod and a guide groove. The driving rod is provided with a guide post that slides with the guide groove. The first end of the driving rod is connected to the driving shaft, and the second end of the driving rod is driven by a driving device, thereby causing the driving shaft to move along the direction of the groove.

7. The door opening structure according to claim 6, characterized in that, The device includes two single-leaf door structures, with the door bodies of the two single-leaf door structures arranged opposite each other in the direction of the sliding groove. The second ends of the two drive rods are rotatably connected to the same connecting shaft, and the connecting shaft is slidably engaged in a positioning groove. The positioning groove is perpendicular to the translation direction of the door body, and the drive device drives the connecting shaft to move along the positioning groove.

8. The door opening structure according to claim 7, characterized in that, The driving device includes a rocker arm and a motor for controlling the rotation of the rocker arm. The rocker arm is provided with a through groove along its length, and the connecting shaft slides through the through groove.

9. The door opening structure according to claim 8, characterized in that, The drive rod is an L-shaped rod with two mutually perpendicular rod segments. The guide post is located at the bend of the L-shaped rod. When the two doors are closed, the rod segments of the two L-shaped rods connected to the connecting shaft are collinear.

10. A refrigerator, characterized in that, The refrigerator door includes the opening structure as described in any one of claims 1 to 9.

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