Rotary connecting device and storage display box

Abstract

The utility model relates to the field of storage display devices, in particular to a rotary connecting device and a storage display box. The rotary connecting device comprises a first connecting component, a second connecting component, a rotary shaft and an elastic reset mechanism. The first connecting component is provided with a main connecting block and at least one first supporting arm, and the second connecting component is provided with an auxiliary connecting block and at least one second supporting arm which are rotationally connected through a rotating shaft. The elastic reset mechanism is composed of an elastic reset assembly, a first rotating assembly and a second rotating assembly. The two ends of the elastic reset assembly are rotationally connected with the first connecting component and the second connecting component through the first rotating assembly and the second rotating assembly respectively. The plane where the axis of the rotating shaft and the rotating axis of the first rotating assembly are located serves as an interface, and when the elastic reset assembly is located on the side, close to the first connecting component, of the interface, the auxiliary connecting block is driven to approach the main connecting block. And when the interface is close to one side of the second connecting component, the auxiliary connecting block is driven to rotate away from the main connecting block. The use convenience of the storage display box is improved.

Description

Technical Field

[0001] This application relates to the field of storage and display devices, and in particular to a rotating connection device and a storage and display box. Background Technology

[0002] Storage and display boxes, as practical tools integrating storage and display functions, are widely used in daily life and work. They are not only suitable for storing healthy foods such as dried fruits, nuts, and grains in the home environment, making them easily accessible; they also meet the storage needs of cooking utensils such as tea bags, coffee bags, and spice packets in the kitchen, making the kitchen more tidy and organized. In office and study settings, storage and display boxes can be used to store small stationery, improving the utilization of desktop space; in gardening, they can be used to preserve seeds; in personal health, they can properly store medicines or health products; and in jewelry storage, they are an ideal place to store small ornaments. This versatility makes storage and display boxes indispensable items in many fields, including healthy eating, office and study, gardening, personal health, and jewelry storage.

[0003] In related technologies for storage and display boxes, a rotating mechanism has been disclosed. This rotating mechanism mainly consists of a connecting plate, a mounting base, and a rotating shaft. The connecting plate has two states: a first position and a second position. The mounting base includes a seat body and protrusions extending along both sides of the seat body. A second notch is formed on the seat body between the two protrusions, and a receiving groove is provided on the protrusions that open outwards from the seat body. When the connecting plate is in the first position, part of it is located inside the seat body, i.e., the connecting plate is outside the second notch, and part of it does not close the second notch; when the connecting plate is in the second position, part of it enters the second notch to close it. The rotating shaft passes through the connecting plate and the seat body and extends into the receiving groove, allowing the connecting plate to freely switch between the first and second positions. Furthermore, the storage box is equipped with an elastic element, and the cover has a critical position between a closed position and an open position. The elastic element is loaded between the mounting base and the connecting plate. When the cover is in the critical position, the torque applied by the elastic element to the cover is zero; when the cover is biased to either side of the critical position along the direction of rotation, the elastic element will apply a driving torque to the cover, driving the cover to the closed or open position.

[0004] While the rotating mechanism in related technologies can switch the connecting plate between the first and second positions, and move the cover between the closed and open positions, the elastic reset mechanism is relatively fixed and can only provide a limited driving torque based on a preset critical position, making it difficult to adapt to different usage scenarios and diverse needs. For example, when the cover needs to be closed gently or opened quickly, the existing elastic reset mechanism cannot provide adjustable elastic feedback, resulting in an inconvenient and unsmooth operating experience. Utility Model Content

[0005] To improve the convenience and practicality of using storage and display boxes, this application provides a rotating connecting device and a storage and display box.

[0006] The rotating connection device and storage / display box provided in this application adopt the following technical solution:

[0007] A rotating connection device and a storage and display box are disclosed, comprising a first connecting member, a second connecting member, a rotating shaft, and an elastic reset mechanism. The first connecting member and the second connecting member are rotatably connected, and the elastic reset mechanism is disposed between the first connecting member and the second connecting member. The elastic reset mechanism includes an elastic reset component, a first rotating component, and a second rotating component. One end of the elastic reset component is rotatably connected to the first connecting member via the first rotating component, and the other end of the elastic reset component is rotatably connected to the second connecting member via the second rotating component. The plane containing the axis of the rotating shaft and the axis of rotation of the first rotating component is defined as the interface. When the second rotating component is located on the side of the interface closer to the first connecting member, the elastic reset component drives the second connecting member to rotate towards the first connecting member. When the second rotating component is located on the side of the interface closer to the second connecting member, the elastic reset component drives the second connecting member to rotate away from the first connecting member.

[0008] By adopting the above technical solution, the two ends of the elastic reset component are rotatably connected to the first and second connecting members via a first rotating component and a second rotating component, respectively. When the second rotating component is located on the interface side closer to the first connecting member, the elastic reset component drives the second connecting member to rotate towards the first connecting member, thereby closing the cover. When the second rotating component is located on the interface side closer to the second connecting member, the elastic reset component drives the secondary connecting block to rotate away from the first connecting member, thereby opening the cover. This allows the storage and display box to provide adjustable driving torque through the elastic feedback of the elastic reset component during opening and closing, according to different scenarios and needs, thus improving ease of use and practicality.

[0009] Optionally, the first connecting member includes a main connecting block and at least one first arm extending from the main connecting block, the first arm being perpendicular to the main connecting block; the second connecting member includes a secondary connecting block and at least one second arm extending from the secondary connecting block, the second arm being perpendicular to the secondary connecting block; the first arm and the second arm are rotatably connected by a rotating shaft.

[0010] By adopting the above technical solution, the first connecting member consists of a main connecting block and at least one first arm perpendicular to it, and the second connecting member consists of a secondary connecting block and at least one second arm perpendicular to it, with the first and second arms rotatably connected via a rotation axis. This allows the first and second connecting members to rotate flexibly, enhancing both the structural stability and the smoothness of rotation. Simultaneously, the vertical arms help expand the range of rotation between the connecting members, making the storage and display box more flexible and convenient to open and close, effectively improving the user experience.

[0011] Optionally, the elastic reset component is an arc-shaped spring sheet, the first rotating component includes a first rotating shaft and a first sleeve, the main connecting block is provided with two third arms on the side near the secondary connecting block, the end of the first rotating shaft is fixedly connected to the third arms; one end of the arc-shaped spring sheet is fixedly connected to the first sleeve, the first sleeve is sleeved on the first rotating shaft and rotatably connected to the first rotating shaft, the first sleeve coincides with the axis of the first rotating shaft and is located on the interface.

[0012] By adopting the above technical solution, the arc-shaped spring is rotatably connected to the first connecting member via the first sleeve and the first rotating shaft, and the axes of the first sleeve and the first rotating shaft coincide and are located at the interface. This allows the arc-shaped spring to flexibly store and release elastic potential energy. When the lid is rotated to an angle less than a certain critical angle, the arc-shaped spring releases the previously stored elastic potential energy, and this elastic force is precisely transmitted to the second connecting member through the first sleeve and the first rotating shaft, driving it to rotate relative to the first connecting member in the closing direction, thereby achieving automatic closing of the lid. This not only improves the convenience of using the storage and display box, but also ensures the stability and reliability of the lid during the closing process, bringing users a smoother and more convenient user experience.

[0013] Optionally, the second rotating assembly includes a second rotating shaft and a second sleeve, the second rotating shaft being fixedly connected to two second support arms; the second sleeve being fixed to the end of the arc-shaped spring piece away from the first sleeve.

[0014] By adopting the above technical solution, the two ends of the second rotating shaft are fixedly connected to the two second supports, ensuring a stable connection of the second connecting components. The second sleeve is fixed to the end of the arc-shaped spring piece furthest from the first sleeve, allowing the other end of the arc-shaped spring piece to also achieve a flexible rotational connection with the second connecting components. This enables the arc-shaped spring piece to transmit elastic force more evenly. Whether it's the automatic reset of the cover during closing or the automatic opening during opening, smooth and stable movement can be achieved through the coordinated action of the arc-shaped spring piece, the first rotating component, and the second rotating component. This not only improves the practicality and durability of the storage and display box but also provides users with a more convenient and efficient user experience.

[0015] Optionally, the number of elastic reset components is two or more, and each elastic reset component includes a torsion spring, a first connecting rod, and a second connecting rod; one end of the first connecting rod is fixedly connected to one end of the torsion spring, and the other end of the first connecting rod is rotatably connected to the main connecting block through the first rotating component; one end of the second connecting rod is fixedly connected to the other end of the torsion spring, and the other end of the second connecting rod is rotatably connected to the second support arm through the second rotating component.

[0016] By adopting the above technical solution, one end of the first connecting rod is firmly connected to the torsion spring, while the other end is flexibly rotated with the main connecting block via the first rotating assembly; one end of the second connecting rod is fixed to the other end of the torsion spring, while the other end of the second connecting rod is rotatably connected to the second support arm via the second rotating assembly. This allows the elastic reset component to deform and store energy when subjected to external force, and when the external force is removed, the torsion spring can quickly release the energy, which is transmitted through the rotation of the first and second connecting rods, driving the relevant components to reset. By adopting the above technical solution, not only is the stability and reliability of the entire system enhanced, but the system can also quickly return to its initial state after being disturbed.

[0017] Optionally, the first rotating assembly includes a linkage rod and a limiting member. The linkage rod is fixedly connected to the ends of multiple first connecting rods away from the torsion spring. The limiting member is disposed on the side of the main connecting block near the secondary connecting block. The linkage rod passes through the limiting member, and the limiting member is rotatably connected to the linkage rod. The linkage rod coincides with the interface.

[0018] By adopting the above technical solution, the linkage rod is configured to be fixedly connected to the end of multiple first connecting rods away from the torsion spring, while the limiting component is precisely arranged on the side of the main connecting block near the secondary connecting block. The linkage rod can smoothly pass through the limiting component and achieve rotational connection with it, while ensuring perfect overlap between the linkage rod and the interface. This not only enables multiple first connecting rods to rotate synchronously through the linkage rod, but also effectively limits the excessive rotation of the linkage rod by the limiting component, ensuring the stability and controllability of the entire rotation process, and achieving efficient linkage and precise control between components.

[0019] Optionally, the second rotating assembly includes a base connector and a movable connector; the base connector is fixedly connected to the second connecting member, and the movable connector is rotatably connected to the end of the second connecting rod away from the torsion spring; the base connector and the movable connector cooperate with each other to realize the rotational connection structure between the elastic reset assembly and the second connecting member.

[0020] By adopting the above technical solution, the base connector is securely connected to the second connecting member, providing solid support for the entire rotating structure. Meanwhile, the movable connector and the end of the second connecting rod furthest from the torsion spring allow for flexible rotation, ensuring that the elastic reset assembly can rotate freely to respond to and adapt to changes when subjected to external forces. This not only achieves a stable and flexible rotating connection structure between the elastic reset assembly and the second connecting member, but also effectively reduces stress concentration and wear problems that may result from rigid connections between components.

[0021] Optionally, the basic connecting member is a mounting rod, the end of which is fixedly connected to the first support arm; the movable connecting member is a first annular member, the number of which corresponds one-to-one with the elastic reset component, the first annular member is disposed at the end of the second connecting rod away from the torsion spring, and the first annular member is sleeved on the mounting rod and rotatably connected to the mounting rod.

[0022] By adopting the above technical solution, the mounting rod is securely connected to the first arm, providing a stable base for the entire rotating system. The number of first annular components corresponds one-to-one with the number of elastic reset components, precisely positioned at the end of the second connecting rod furthest from the torsion spring, and fitted onto the mounting rod, achieving a flexible rotatable connection. This not only ensures that each elastic reset component can rotate independently and smoothly, but also greatly enhances the stability and reliability of the entire rotating structure through the tight fit between the first annular components and the mounting rod.

[0023] Optionally, the basic connecting member is a mounting base, and the mounting base has a rotating hole; the movable connecting member is a rotating member, and the rotating member is located at the end of the second connecting rod away from the torsion spring, the rotating member passes through the rotating hole and is rotatably connected to the mounting member.

[0024] By adopting the above technical solution, the carefully designed rotating hole on the mounting base provides a stable yet flexible fulcrum for the rotating component; the rotating component is precisely positioned at the end of the second connecting rod furthest from the torsion spring, smoothly passing through the rotating hole and achieving a tight rotational connection with the mounting base. This not only ensures that the elastic reset assembly can rotate smoothly around the mounting base, but also improves the accuracy and stability of the rotation.

[0025] Secondly, this application discloses a storage and display box, which includes not only the aforementioned rotating device, but also a box body and a cover; a first mounting block is provided on the first support arm of the first connecting member, the box body is fixedly connected to the first mounting block, and the cover is fixedly connected to the secondary connecting block of the second connecting member.

[0026] By adopting the above technical solution, a first mounting block is securely installed on the first arm of the first connecting member. The box body is tightly connected to the rotating device through this mounting block, ensuring the stability of the box body and the smoothness of its rotation. The lid is fixedly connected to the secondary connecting block of the second connecting member, allowing the lid to open and close gracefully as the rotating device rotates. The storage and display box not only achieves efficient storage and convenient display of items, but its robust connection structure also ensures the durability and reliability of the box body during long-term use.

[0027] Optionally, a gasket is fixedly provided on the surface of the first mounting block, and the gasket has a plurality of first clearance grooves on the side near the second connecting member for the second support arm to rotate.

[0028] By adopting the above technical solution, the gasket not only enhances the structural stability of the first mounting block, but also provides multiple first clearance grooves on the side of the gasket closest to the second connecting member. These first clearance grooves precisely match the rotation trajectory of the second arm, ensuring smooth and unobstructed rotation of the second arm within the first clearance grooves during the opening and closing of the cover, avoiding jamming or wear caused by friction or collision. Simultaneously, when the cover is closed, the gasket helps ensure that the secondary connecting block and the main connecting block remain parallel to each other, allowing the cover to accurately and smoothly fit against the box during closing, thus ensuring the cover fits snugly onto the box and guaranteeing a good closed state for the storage and display box.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. When the user rotates the lid to a specific angle, the elastic reset component can accurately release or store elastic potential energy, driving the lid to automatically close or open to the preset position, greatly improving the convenience of use. The lid can be closed and opened without the user's manual operation, bringing the user an unprecedented smooth and convenient experience.

[0031] 2. The linkage rod in the first rotating assembly cooperates with the limiting component, and the mounting rod in the second rotating assembly is tightly connected with the first annular component, the mounting base and the rotating component, ensuring the stability and rotation accuracy of the entire rotating structure;

[0032] 3. The storage and display box not only achieves efficient storage of items, but also allows the lid to open and close gracefully through its unique rotating connection device, making it easy for users to view or retrieve the items inside the box at any time. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the rotating connection device in Embodiment 1 of this application.

[0034] Figure 2This is a structural schematic diagram of the rotating connection device from another perspective in Embodiment 1 of this application.

[0035] Figure 3 This is a schematic diagram of the elastic reset component located on one side of the interface in Embodiment 1 of this application.

[0036] Figure 4 This is a schematic diagram of the elastic reset component located on the other side of the interface in an embodiment of this application.

[0037] Figure 5 This is a schematic diagram of the rotating connection device in Embodiment 2 of this application.

[0038] Figure 6 This is a schematic diagram of the elastic reset component located on one side of the interface in Embodiment 2 of this application.

[0039] Figure 7 This is a schematic diagram of the elastic reset component in Embodiment 2 of this application.

[0040] Figure 8 This is a schematic diagram of the rotating connection device in Embodiment 3 of this application.

[0041] Figure 9 This is a schematic diagram of the assembly relationship between the second connecting member and the elastic reset assembly in Embodiment 3 of this application.

[0042] Figure 10 This is a structural schematic diagram of the storage and display box in Embodiment 4 of this application.

[0043] Figure 11 This is a schematic diagram of the box structure in Embodiment 4 of this application.

[0044] Figure 12 This is a schematic diagram of the cover structure in Embodiment 4 of this application.

[0045] Figure 13 This is a schematic diagram of the assembly relationship of the locking mechanism in Embodiment 4 of this application.

[0046] Figure 14 This is a schematic diagram of the sliding seat in Embodiment 4 of this application.

[0047] Figure 15 This is a schematic diagram of the structure of the second locking component in Embodiment 4 of this application.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. First connecting component; 11. Main connecting block; 12. First support arm; 13. First mounting block; 14. First positioning hole; 15. First bolt hole; 16. Third support arm; 17. Gasket; 18. First clearance groove; 19. Bearing block; 2. Second connecting component; 21. Secondary connecting block; 22. Second support arm; 23. Second positioning hole; 24. Second bolt hole; 3. Rotating shaft; 4. Elastic reset assembly; 41. Arc-shaped spring; 42. Torsion spring; 43. First connecting rod; 44. Second connecting rod; 5. First rotating assembly; 51. First rotating shaft; 52. First sleeve; 53. Linkage rod; 54. Limiting component; 55. Limiting groove; 6. Second rotating assembly; 61. Second rotating shaft; 62. Second sleeve; 63. Base connecting component; 631. Mounting rod; 632. Mounting base; 6321. Second mounting block; 6322. Fourth support arm; 6323. Rotation 64. Hole; 64. Movable connector; 641. First annular member; 642. Rotating member; 6421. Rotating part; 6422. Anti-detachment part; 7. Box body; 71. Second clearance groove; 72. First positioning groove; 73. First positioning post; 74. Sliding groove; 741. Third positioning hole; 75. Anti-detachment groove; 76. Fourth positioning groove; 77. Annular groove; 78. Block; 79. Second clearance groove; 8. Cover body; 81. Second annular member ; 82. Third positioning groove; 83. Second positioning post; 9. Locking mechanism; 91. First locking assembly; 911. Sliding seat; 9111. Pressing element; 9112. First locking element; 9113. First anti-detachment block; 9114. Top groove; 912. Second elastic element; 92. Second locking assembly; 921. Fixing element; 922. Second locking element; 923. Second anti-detachment block; 10. Sealing ring; 100. Interface. Detailed Implementation

[0050] The following is in conjunction with the appendix Figure 1-15 This application will be described in further detail.

[0051] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0052] For ease of understanding, in this embodiment, the basic concepts of the rotating device and the storage and display box are defined as follows:

[0053] 1. Placement status: When the storage and display box is placed normally on the table, the lid 8 is above the box body 7.

[0054] 2. Rotation angle: refers to the angle between the surface of the main connecting block 11 and the secondary connecting block 21.

[0055] 3. Critical Angle: In the rotating device and storage display box, the specific rotation angle range limit value used to distinguish the automatic closing and automatic opening states of the cover 8, specifically 40°-50°.

[0056] 4. First angle range: This range applies when the rotation angle between the surface of the first mounting block 13 and the secondary connecting block 21 is less than the critical angle. Within this range, the cover 8 automatically closes.

[0057] 5. Second angle range: This range applies when the rotation angle exceeds the critical angle. Within this range, the cover 8 automatically opens to the maximum angle, which ranges from 80° to 120°.

[0058] The following sections will provide a detailed explanation of the rotating device and the storage and display box based on the above definitions.

[0059] Example 1

[0060] This application discloses a rotating device. (Refer to...) Figure 1 and Figure 2 The rotating device includes a first connecting member 1, a second connecting member 2, a rotating shaft 3, and an elastic reset mechanism. The first connecting member 1 and the second connecting member 2 are rotatably connected via the rotating shaft 3. The first connecting member 1 connects to the box body 7, and the second connecting member 2 connects to the box body 7, allowing the lid 8 and the box body 7 to rotate relative to each other, thereby achieving the opening and closing function. The elastic reset mechanism is located between the first connecting member 1 and the second connecting member 2. One end of the elastic reset mechanism is rotatably connected to the first connecting member 1, and the other end is rotatably connected to the second connecting member 2. The elastic reset mechanism plays a crucial role in the opening or closing process of the lid 8, namely, storing and releasing elastic potential energy to drive the automatic reset or opening of the lid 8.

[0061] Reference Figure 2 and Figure 3In this embodiment, the first connecting member 1 includes a main connecting block 11, with a first support arm 12 integrally formed at both ends of the main connecting block 11, and the two first support arms 12 are parallel to each other. A first mounting block 13 is integrally formed on each first support arm 12, and both first mounting blocks 13 are located on the outer side wall of the first support arm 12. Each first mounting block 13 has a through first positioning hole 14 and a first bolt hole 15, and each first mounting block 13 is used to connect to the housing 7. The first connecting member 1 is connected to the housing 7 through the first mounting blocks 13, providing stable support. The first support arms 12 allow the first connecting member 1 to rotate around the rotation axis 3. This ensures the stability of the connection and facilitates installation and disassembly.

[0062] Reference Figure 2 and Figure 3 The second connecting member 2 includes a secondary connecting block 21, which has a through second positioning hole 23 and a second bolt hole 24. The secondary connecting block 21 is used to connect the cover body 8. Each end of the secondary connecting block 21 has an integrally formed second support arm 22, which is parallel to each other. The two second support arms 22 are located between the two first support arms 12, and the outer side wall of each second support arm 22 abuts against the inner side wall of the first support arm 12. Each end of the rotating shaft 3 passes sequentially through the second support arm 22 and the first support arm 12. The first support arm 12 and the second support arm 22 are rotatably connected by the rotating shaft 3, allowing the first connecting member 1 and the second connecting member 2 to rotate relative to each other.

[0063] Reference Figure 2 and Figure 3 The elastic reset mechanism includes an elastic reset component 4, a first rotating component 5, and a second rotating component 6. One end of the elastic reset component 4 is rotatably connected to the first support arm 12 through the first rotating component 5, and the other end of the elastic reset component 4 is rotatably connected to the second support arm 22 through the second rotating component 6.

[0064] Reference Figure 3 In this embodiment, the elastic reset component 4 is an arc-shaped spring piece 41. The first rotating component 5 includes a first rotating shaft 51 and a first sleeve 52. The main connecting block 11 has two parallel third arms 16 integrally formed on the side near the secondary connecting block 21. The first rotating shaft 51 is parallel to the rotating shaft 3. The two ends of the first rotating shaft 51 are respectively inserted through the two third arms 16 and are fixedly connected to the two third arms 16 respectively. One end of the arc-shaped spring piece 41 is integrally formed with the first sleeve 52. The first sleeve 52 is sleeved on the first rotating shaft 51 and is rotatably connected to the first rotating shaft 51. The axis of the first sleeve 52 coincides with that of the first rotating shaft 51 and is located on the interface 100.

[0065] Reference Figure 4The second rotating assembly 6 includes a second rotating shaft 61 and a second sleeve 62. The second rotating shaft 61 is parallel to the rotating shaft 3, which is located between the second rotating shaft 61 and the auxiliary connecting block 21. Both ends of the second rotating shaft 61 are respectively threaded through two second support arms 22, and the second rotating shaft 61 is fixedly connected to the second support arms 22. The second sleeve 62 is integrally formed on the end of the arc-shaped spring piece 41 away from the first sleeve 52, and the second sleeve 62 is sleeved on the second rotating shaft 61 and rotatably connected to it.

[0066] Reference Figure 3 and Figure 4 The plane containing the axis of rotation shaft 3 and the axis of rotation of the first rotating component 5 is defined as interface 100. When the second rotating component 6 is located on the side of interface 100 closer to the first connecting member 1, the elastic reset component 4 drives the sub-connecting block 21 to rotate towards the main connecting block 11, thus enabling the cover 8 to close automatically; when the second rotating component 6 is located on the side of interface 100 closer to the second connecting member 2, the elastic reset component 4 drives the sub-connecting block 21 to rotate away from the main connecting block 11.

[0067] The implementation principle of the above embodiment is as follows: When the lid 8 is rotated to a certain angle (less than the critical angle), the elastic potential energy stored in the arc-shaped spring piece 41 due to previous stretching or compression begins to be released. This released elastic force is transmitted to the first connecting member 1 and the second connecting member 2 through the first rotating component 5 and the second rotating component 6, causing the second connecting member 2 to rotate relative to the first connecting member 1 towards the closing direction. During this process, the elastic force of the arc-shaped spring piece 41 gradually weakens until the lid 8 is completely closed, achieving a tight seal with the box body 7. When it is necessary to open the lid 8, the user only needs to rotate the lid 8 to a larger angle (greater than the critical angle). During this process, the arc-shaped spring piece 41 continues to be stretched or compressed, storing more elastic potential energy. When the lid 8 is rotated to the maximum angle position (e.g., 90°-120°), the user can easily view or take out the items inside the box. Subsequently, when the user releases the lid 8, the arc-shaped spring piece 41 releases the previously stored elastic potential energy, driving the second connecting member 2 to automatically rotate to the closing direction until the lid 8 is once again tightly sealed with the box body 7.

[0068] Example 2

[0069] Reference Figure 5 and Figure 6The difference between this embodiment and Embodiment 1 is that in this embodiment, there are two elastic reset components 4. Each elastic reset component 4 includes a torsion spring 42, a first connecting rod 43, and a second connecting rod 44. One end of the first connecting rod 43 is rotatably connected to one end of the torsion spring 42, and the other end of the first connecting rod 43 is rotatably connected to the main connecting block 11 through the first rotating component 5. One end of the second connecting rod 44 is fixedly connected to the other end of the torsion spring 42, and the other end of the second connecting rod 44 is rotatably connected to the second support arm 22 through the second rotating component 6.

[0070] Reference Figure 6 and Figure 7 The first rotating component 5 includes a linkage rod 53 and a limiting member 54. The linkage rod 53 is parallel to the rotating shaft 3, and both ends of the linkage rod 53 are fixedly connected to the ends of the two first connecting rods 43 away from the torsion spring 42. The limiting member 54 is located on the side of the main connecting block 11 near the auxiliary connecting block 21. One end of the limiting member 54 is integrally formed with the main connecting block 11 to ensure structural strength and stability. The end of the limiting member 54 away from the main connecting block 11 is bent towards the rotating shaft 3, and the bending direction is towards the main connecting block 11, thereby forming a limiting groove 55 with a "hook-shaped" or "U-shaped" structure. The length direction of the limiting groove 55 is the same as the length direction of the rotating shaft 3, and both ends of the limiting groove 55 are open. The side of the limiting groove 55 facing the main connecting block 11 is open, and the side of the limiting groove 55 away from the main connecting block 11 is closed. The linkage rod 53 is located in the limiting groove 55, and the linkage rod 53 is rotatably connected to the limiting member 54.

[0071] Reference Figure 6 and Figure 7 The second rotating component 6 includes a basic connecting member 63 and a movable connecting member 64. In this embodiment, the basic connecting member 63 is a mounting rod 631, which is parallel to the rotating shaft 3. Both ends of the mounting rod 631 pass through the two first supports 12 and are fixedly connected to them. The rotating shaft 3 is located between the mounting rod 631 and the secondary connecting block 21. In this embodiment, the movable connecting member 64 is specifically a first annular member 641, and there are two first annular members 641. Each first annular member 641 corresponds to one of the elastic reset components 4. The first annular member 641 is integrally formed on the end of the second connecting rod 44 away from the torsion spring 42. The first annular member 641 is sleeved on the mounting rod 631 and rotatably connected to it. Specifically, the first annular member 641 can be a circular ring-shaped part; however, its specific structure can be a torsion spring or a spring.

[0072] Reference Figure 5 , Figure 6 and Figure 7The plane containing the axis of rotation shaft 3 and the axis of rotation of the first rotating component 5 is defined as interface 100. When the second rotating component 6 is located on the side of interface 100 closer to the first connecting member 1, the elastic reset component 4 drives the secondary connecting block 21 to rotate towards the main connecting block 11, thus enabling the cover 8 to automatically close; when the second rotating component 6 is located on the side of interface 100 closer to the second connecting member 2, the elastic reset component 4 drives the secondary connecting block 21 to rotate away from the main connecting block 11, thus enabling the cover 8 to automatically open.

[0073] The implementation principle of the above embodiment is as follows: When the lid 8 is rotated to a first angle range less than the critical angle, the elastic potential energy stored in the torsion spring 42 due to previous stretching or compression begins to be released. This released elastic force is transmitted to the first connecting member 1 through the first connecting rod 43, the linkage rod 53, and the first rotating assembly 5, and simultaneously to the second connecting member 2 through the second connecting rod 44, the first annular member 641, and the second rotating assembly 6. Under the action of the elastic force, the second connecting member 2 rotates relative to the first connecting member 1 towards the closing direction, thereby achieving automatic reset of the lid 8 and tight sealing of the box 7. When the lid 8 is rotated to a second angle range greater than the critical angle, the torsion spring 42 continues to be stretched or compressed, storing more elastic potential energy. When the user releases the lid 8, the torsion spring 42 releases the previously stored elastic potential energy, driving the second connecting member 2 to automatically rotate to the maximum angle position (e.g., 90°-120°) through the same transmission path, making it convenient for the user to view or retrieve the items inside the box.

[0074] Example 3

[0075] Reference Figure 8 and Figure 9 The difference between Embodiment 3 and Embodiment 2 is that, in this embodiment, the basic connecting member 63 is a mounting base 632, which includes a first mounting block 13 and two fourth arms 6322. The two fourth arms 6322 are integrally formed on opposite sides of the first mounting block 13, and are parallel to each other. Each fourth arm 6322 has a rotating hole 6323. The movable connecting member 64 is a rotating member 642, which includes a rotating part 6421. The end of the second connecting rod 44 away from the torsion spring 42 is integrally formed with the rotating part 6421. The rotating part 6421 passes through the rotating hole 6323 and is rotatably connected to the fourth arm 6322. An anti-detachment part 6422 is fixedly provided at the end of the rotating part 6421 that passes through the rotating hole 6323. The anti-detachment part 6422 is perpendicular to the rotating part 6421, and the sidewall of the anti-detachment part 6422 abuts against the inner sidewall of the fourth arm 6322. In this embodiment, both the rotating part 6421 and the anti-detachment part 6422 are rod-shaped structures.

[0076] Reference Figure 6 and Figure 8 In this embodiment, the interface 100 is exactly the same as that in embodiment 2. When the second rotating component 6 is located on the side of the interface 100 close to the first connecting member 1, the elastic reset component 4 drives the secondary connecting block 21 to rotate towards the main connecting block 11, thus enabling the cover 8 to automatically close; when the second rotating component 6 is located on the side of the interface 100 close to the second connecting member 2, the elastic reset component 4 drives the secondary connecting block 21 to rotate away from the main connecting block 11, thus enabling the cover 8 to automatically open.

[0077] The implementation principle of the above embodiment is as follows: When the lid 8 is rotated to a first angle range less than the critical angle, the torsion spring 42 releases the previously stored elastic potential energy. This elastic force is transmitted to the first connecting member 1 through the first connecting rod 43, the linkage rod 53, and the first rotating assembly 5, and simultaneously to the second connecting member 2 through the second connecting rod 44, the rotating part 6421, and the second rotating assembly 6. Under the action of the elastic force, the second connecting member 2 rotates relative to the first connecting member 1 towards the closing direction, thereby realizing the automatic reset of the lid 8 and the tight sealing of the box 7. When the lid 8 is rotated to a second angle range greater than the critical angle, the torsion spring 42 continues to be stretched or compressed to store more elastic potential energy. When the user releases the lid 8, the torsion spring 42 releases the previously stored elastic potential energy, driving the second connecting member 2 to automatically rotate to the maximum angle position (such as 90°-120°) through the same transmission path, making it convenient for the user to view or take out the items in the box.

[0078] Example 4

[0079] Reference Figure 10 and Figure 11 This embodiment discloses a storage and display box, which includes a rotating connection device of any one of the above embodiments 1-3, and also includes a box body 7 and a cover body 8. The box body 7 is connected to the first connecting member 1, and the cover body 8 is connected to the second connecting member 2, thereby realizing the rotating connection function between the cover body 8 and the box body 7.

[0080] Reference Figure 8 and Figure 11The top of one side of the box body 7 has a second recessed groove 71 and two first positioning grooves 72. The second recessed groove 71 is located between the two first positioning grooves 72 and is interconnected with them. The depth of the second recessed groove 71 is greater than the depth of the two first positioning grooves 72. The second recessed groove 71 is used to accommodate the elastic reset mechanism and ensures that the elastic reset component 4 does not interfere with the box body 7 during its movement. The first positioning grooves 72 correspond one-to-one with the first mounting blocks 13. The outer side wall of each first mounting block 13 abuts against the inner side wall of the first positioning groove 72. The bottom of each first positioning groove 72 is integrally formed with a first positioning post 73. Each first mounting block 13 has a first positioning hole 14, and each first positioning post 73 passes through the first positioning hole 14, which plays a stable positioning role. At the same time, a bolt is inserted into the first bolt hole 15 to facilitate fixing the first connecting member 1 to the box body 7.

[0081] Reference Figure 1 and Figure 8 A gasket 17 is fixedly disposed on the surface of the two first mounting blocks 13. Multiple first clearance grooves 18 are carefully formed on the side of the gasket 17 near the second connecting member 2, and these first clearance grooves 18 correspond one-to-one with the second rotating ears. When the second rotating member rotates relative to the first rotating member, the second support arm 22 can smoothly pass through the first clearance grooves 18, thereby avoiding interference with the gasket 17, ensuring smooth rotation, effectively reducing potential wear or rotational problems caused by interference, and improving the overall performance and stability of the storage and display box.

[0082] Reference Figure 1 and Figure 4 When the cover 8 is in the closed state, the gasket 17 helps to ensure that the secondary connecting block 21 and the main connecting block 11 are exactly parallel to each other, so that the cover 8 can accurately and smoothly cooperate with the box 7 during the closing process, thereby ensuring that the cover 8 fits perfectly on the box 7, ensuring that the storage and display box is in a good closed state, and improving the rationality and sealing performance of the overall structure.

[0083] Reference Figure 3A support block 19 is integrally formed on the top of the main connecting block 11 near the side of the secondary connecting block 21. During the use of the storage display box, the surface of the support block 19 abuts against the surface of the gasket 17, providing strong support for the middle of the gasket 17. Since the gasket 17 may be subjected to various forces during long-term use, without the support of the support block 19, its middle part is prone to deformation, affecting its service life and normal function. The presence of the support block 19 effectively distributes the pressure on the gasket 17, extends its service life, and ensures that the gasket 17 can function continuously and stably, thereby ensuring the reliability and durability of the rotating connection structure between the storage display box lid 8 and the box body 7.

[0084] Reference Figure 9 and Figure 12 The cover 8 has a third positioning groove 82, and the bottom of the third positioning groove 82 is integrally formed with two second positioning posts 83. The secondary connecting block 21 has a second positioning hole 23. The secondary connecting block 21 is fixed in the third positioning groove 82, and the outer side wall of the secondary connecting block 21 abuts against the inner side wall of the third positioning groove 82. At the same time, the second positioning posts 83 pass through the second positioning holes 23, thereby facilitating the fixing of the second connecting member 2 to the cover 8.

[0085] Reference Figure 13 The locking mechanism 9 includes a first locking component 91 and a second locking component 92. The first locking component 91 is disposed on the box body 7, and the second locking component 92 is disposed on the cover body 8.

[0086] Reference Figure 14 The first locking assembly 91 includes a sliding seat 911 and a second elastic member 912. The sliding seat 911 includes a pressing member 9111, a first locking member 9112, and a first anti-detachment block 9113. The pressing member 9111 and the first locking member 9112 are integrally formed. The first anti-detachment block 9113 is integrally formed on the side wall of the first locking member 9112. The top end of the first anti-detachment block 9113 is flush with the top end of the first locking member 9112. There is a gap between the first anti-detachment block 9113 and the bottom of the top groove 9114.

[0087] Reference Figure 13 The top of the box body 7, on the side away from the rotating device, has an interconnected sliding groove 74 and an anti-detachment groove 75, both of which are open at the top. The anti-detachment groove 75 is a square groove, and the sliding groove 74 is a T-shaped groove; together, they form an "I"-shaped groove. The first locking member 9112 is located within the anti-detachment groove 75, and it slides in engagement with the anti-detachment groove 75. The pressing member 9111 is located within the sliding groove 74, and it slides in engagement with the sliding groove 74.

[0088] Continue to refer to Figure 13In this embodiment, there are two second elastic elements 912, both located between the sliding member and the sliding groove 74. One end of each second elastic element 912 abuts against the side wall of the sliding groove 74, and the other end abuts against the side wall of the pressing member 9111. In this embodiment, the second elastic element 912 is specifically in the form of a spring, and the side wall of the sliding groove 74 is also provided with a third positioning hole 741 corresponding to the spring. The side of the spring closest to the housing 7 is placed inside the third positioning hole 741.

[0089] Reference Figure 14 and Figure 15 The upper surface of the sliding seat 911 has a top groove 9114 for the insertion of the second locking assembly 92. The top groove 9114 is located between the pressing member 9111 and the first locking member 9112. The first locking member 9112 has a first anti-detachment block 9113 integrally formed on the side wall near the top groove 9114. There is a space between the first anti-detachment block 9113 and the bottom of the top groove 9114 for accommodating the second locking assembly 92. The second locking assembly 92 includes a fixing member 921, a second locking member 922, and a second anti-detachment block 923. The fixing member 921 and the second locking member 922 are integrally formed, and the two are combined to form an L-shape. The second anti-detachment block 923 is integrally formed on the side wall of the second locking member 922. The fixing member 921 is fixed to the side of the cover 8 facing the box 7 by bolts. When the cover 8 is in the closed state, the side wall of the first locking member 9112 abuts against the side wall of the second locking member 922, and the lower surface of the first anti-detachment block 9113 abuts against the upper surface of the second anti-detachment block 923, thereby effectively preventing the cover 8 from opening automatically. In addition, the end of the second anti-detachment block 923 is chamfered, which makes the closing process of the cover 8 smoother.

[0090] Reference Figure 12 and Figure 13 The cover 8 has a second annular member 81, and an annular groove 77 is formed on the outer wall of the second annular member 81 or the inner wall of the box 7. A sealing ring 10 is installed in the annular groove 77. The annular groove 77 ensures that the sealing ring 10 can be correctly installed in the predetermined position and perform its sealing function. The sealing ring 10 is usually made of an elastic material, such as rubber or silicone. When the cover 8 is closed, the sealing ring 10 can fill the tiny gap between the cover 8 and the box 7, increasing the overall airtightness of the storage and display box.

[0091] Reference Figure 13 and Figure 15Meanwhile, a fourth positioning groove 76 is provided on the top of the box body 7. A blocking block 78 is fixedly installed in the fourth positioning groove 76. The blocking block 78 can prevent dust and other objects from entering the anti-detachment groove 75 and the sliding groove 74, thereby increasing the overall cleanliness of the box body 7. At the same time, the blocking block 78 is provided with a through hole for the second locking member 922 and the second anti-detachment block 923 to pass through.

[0092] The implementation principle of this embodiment is as follows: When the cover 8 is rotated to a position less than the critical angle, the elastic reset component 4 releases the previously stored elastic potential energy. This elastic force is transmitted to the first connecting member 1 and the second connecting member 2 through the first rotating component 5 and the second rotating component 6, respectively, causing the second connecting member 2 to rotate relative to the first connecting member 1 in the closing direction, thereby realizing the automatic closing of the cover 8 and its tight sealing with the box 7. When the cover 8 is rotated to a position greater than the critical angle, the elastic reset component 4 continues to be stretched or compressed to store more elastic potential energy. After the user releases the cover 8, the elastic reset component 4 releases potential energy to drive the second connecting member 2 to automatically rotate to the maximum angle position, making it convenient to view or take out the items inside the box. At the same time, when the cover 8 is closed, the locking mechanism 9, with the first locking component 91 and the second locking component 92 cooperating with each other, prevents the cover 8 from opening automatically. The sealing ring 10 between the cover 8 and the box 7 increases the sealing performance. The components work together to realize the functions of rotational connection, automatic reset, opening, and sealing of the storage and display box.

[0093] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotational connection device, characterized by: The utility model provides a connecting mechanism, including first connecting component (1), second connecting component (2), rotation axis (3) and elastic reset mechanism, first connecting component (1) with second connecting component (2) rotation is connected, and elastic reset mechanism is arranged between first connecting component (1) with second connecting component (2), and elastic reset mechanism includes elastic reset subassembly (4), first rotation subassembly (5) and second rotation subassembly (6), one end of elastic reset subassembly (4) is connected with first connecting component (1) through first rotation subassembly (5), and the other end of elastic reset subassembly (4) is connected with second connecting component (2) through second rotation subassembly (6), the axis of rotation axis (3) with the plane that the rotation axis (3) of first rotation subassembly (5) line is defined as demarcation surface (100), when second rotation subassembly (6) is located on the demarcation surface (100) near first connecting component (1) one side, elastic reset subassembly (4) drives second connecting component (2) rotation to near first connecting component (1) direction, when second rotation subassembly (6) is located on the demarcation surface (100) near second connecting component (2) one side, elastic reset subassembly (4) drives second connecting component (2) rotation to away from first connecting component (1) direction.

2. A rotary coupling device according to claim 1, wherein: First connecting component (1) includes main connecting block (11) and at least one first supporting arm (12) extending from main connecting block (11), and first supporting arm (12) is perpendicular to main connecting block (11), and second connecting component (2) includes auxiliary connecting block (21) and at least one second supporting arm (22) extending from auxiliary connecting block (21), and second supporting arm (22) is perpendicular to auxiliary connecting block (21), and first supporting arm (12) is rotationally connected with second supporting arm (22) through rotation axis (3).

3. A rotary coupling device according to claim 2, wherein: Elastic reset subassembly (4) is arc spring (41), first rotation subassembly (5) includes first rotation shaft (51) and first sleeve (52), and the side of main connecting block (11) near auxiliary connecting block (21) is equipped with two third supporting arms (16), and the end of first rotation shaft (51) is fixedly connected with third supporting arm (16), one end of arc spring (41) is fixedly connected with first sleeve (52), first sleeve (52) is sleeved on first rotation shaft (51) and is rotationally connected with first rotation shaft (51), and the axis of first sleeve (52) coincides with first rotation shaft (51) and is located on demarcation surface (100).

4. A rotary coupling device according to claim 3, wherein: Second rotation subassembly (6) includes second rotation shaft (61) and second sleeve (62), and second rotation shaft (61) is fixedly connected with two second supporting arms (22), and second sleeve (62) is fixed to the end of arc spring (41) away from first sleeve (52).

5. A rotary coupling device as claimed in claim 2, wherein: The number of the elastic reset assembly (4) is two or more, each of the elastic reset assembly (4) comprises a torsion spring (42), a first connecting rod (43) and a second connecting rod (44); one end of the first connecting rod (43) is fixedly connected with one end of the torsion spring (42), the other end of the first connecting rod (43) is rotatably connected with the main connecting block (11) through the first rotating assembly (5); one end of the second connecting rod (44) is fixedly connected with the other end of the torsion spring (42), the other end of the second connecting rod (44) is rotatably connected with the second branch arm (22) through the second rotating assembly (6).

6. A rotary coupling device according to claim 5, wherein: The first rotating assembly (5) comprises a linkage rod (53) and a limiting piece (54), the linkage rod (53) is fixedly connected with multiple first connecting rods (43) away from the torsion spring (42) at the same time; the limiting piece (54) is arranged on the side of the main connecting block (11) close to the auxiliary connecting block (21), the linkage rod (53) penetrates through the limiting piece (54), the limiting piece (54) is rotatably connected with the linkage rod (53), and the linkage rod (53) is coincided with the boundary surface (100).

7. A rotary coupling device as claimed in claim 5, wherein: The second rotating assembly (6) comprises a base connecting piece (63) and a movable connecting piece (64); the base connecting piece (63) is fixedly connected with the second connecting member (2), and the movable connecting piece (64) is rotatably connected with the second connecting rod (44) away from the torsion spring (42); the base connecting piece (63) and the movable connecting piece (64) are matched with each other, so that the rotating connection structure of the elastic reset assembly (4) and the second connecting member (2) is realized.

8. A rotary coupling device according to claim 7, wherein: The base connecting piece (63) is a mounting rod (631), and the end of the mounting rod (631) is fixedly connected with the first branch arm (12); the movable connecting piece (64) is a first annular piece (641), the number of the first annular piece (641) corresponds to the number of the elastic reset assembly (4), the first annular piece (641) is arranged at the end of the second connecting rod (44) away from the torsion spring (42), and the first annular piece (641) is sleeved on the mounting rod (631) and rotatably connected with the mounting rod (631).

9. A rotary coupling device as claimed in claim 7, wherein: The base connecting piece (63) is a mounting seat (632), and a rotating hole (6323) is formed in the mounting seat (632); the movable connecting piece (64) is a rotating piece (642), the rotating piece (642) is arranged at the end of the second connecting rod (44) away from the torsion spring (42), and the rotating piece (642) penetrates through the rotating hole (6323) and is rotatably connected with the mounting piece.

10. A rotary coupling device according to claim 9, wherein: The rotating member (642) comprises a rotating part (6421) and an anti-dropping part (6422), one end of the rotating part (6421) is fixedly connected with one end of the second connecting rod (44) away from the torsion spring (42), the rotating part (6421) passes through the rotating hole (6323) and is rotationally connected with the mounting seat (632); the other end of the rotating part (6421) is fixedly connected with the anti-dropping part (6422), and the side wall of the anti-dropping part (6422) abuts against the side wall of the mounting seat (632).

11. A storage display case, characterized by: The rotating connecting device comprises the box body (7) and the cover body (8); the first mounting block (13) is arranged on the first branch arm (12) of the first connecting member (1), the box body (7) is fixedly connected with the first mounting block (13), and the cover body (8) is fixedly connected with the auxiliary connecting block (21) of the second connecting member (2).

12. The display case of claim 11, wherein: A gasket (17) is fixedly arranged on the surface of the first mounting block (13), a plurality of first position-avoiding grooves (18) for the rotation of the second branch arm (22) are formed in the side of the gasket (17) close to the second connecting member (2).

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