Cover plate connecting structure and folding shopping box
By employing a flexible combination of an elastic pivot assembly and a rotating hole in the folding shopping box, the problem of severe wear on the cover plate was solved, enabling smooth rotation and stable engagement of the cover plate, thus improving its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-13
AI Technical Summary
The existing folding shopping box has an interference fit between the lid and the pivot, which causes severe wear and affects the smooth rotation of the lid. After long-term use, the pivot cannot be stably engaged, causing the lid to not rotate smoothly.
The flexible fit between the elastic pivot assembly and the rotating hole is adopted. When the cover slides, the elastic pivot assembly is squeezed and undergoes elastic deformation to make room, reducing wear. Through the design of the deformation spring and the rotating shaft, the smooth rotation and stable locking of the cover are achieved.
This reduces wear on the flexible pivot, ensuring smooth rotation even after multiple insertions and removals of the cover plate, thus improving the stability and lifespan of the cover plate and substrate assembly.
Smart Images
Figure CN223990035U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding shopping cart technology, and more specifically, to a cover plate connection structure and a folding shopping box. Background Technology
[0002] A folding shopping suitcase is a type of shopping box that can be folded up when not in use, saving storage space. Some folding shopping boxes have a lid that is stored inside the box when not in use. To use the lid, you need to pull it out vertically and then rotate it 90 degrees to cover the opening at the top of the box.
[0003] To ensure smooth rotation of the lid, a pivot is fixedly installed on the inner side wall of the existing box. A corresponding rotation hole is provided on the side wall of the lid. The lid is interference-fitted with the pivot during both pulling out and retracting. The pivot only engages with the rotation hole after the lid is pulled out and aligned. However, because the pivot and lid are in an interference-fit and rigid fit, the pivot experiences significant wear during these processes. Since the folding shopping box requires the lid to be pulled out and inserted every time it's used, this repeated process over time will severely wear down the pivot, making it unable to reliably engage with the rotation hole and preventing the lid from rotating smoothly. Utility Model Content
[0004] To address at least one of the aforementioned problems, this utility model first provides a cover plate connection structure, including a base plate assembly and a cover plate. The cover plate is slidably connected to the base plate assembly for storage. The base plate assembly or the cover plate is provided with an elastic rotating shaft assembly, and the cover plate or the base plate assembly is provided with a rotating hole. When the cover plate is in the open state, the elastic rotating shaft assembly is inserted into the rotating hole to cause the cover plate to rotate relative to the base plate assembly. When the cover plate slides relative to the base plate assembly, the elastic rotating shaft assembly is compressed and undergoes elastic deformation to make way.
[0005] Optionally, the substrate assembly includes a side plate and a partition plate, the side plate and the partition plate are detachably connected, and the side plate and the partition plate are spaced apart by a sliding cavity, and the cover plate is inserted into the sliding cavity.
[0006] Optionally, the elastic rotating shaft assembly is disposed on the side plate or the partition plate, the rotating hole is disposed on the cover plate, and the rotating hole is an oblong hole.
[0007] Optionally, the partition plate has two support plates formed on the side near the side plate. The two support plates are arranged at intervals along a direction perpendicular to the sliding direction of the cover plate. The cover plate is located between the two support plates. The elastic rotating shaft assembly is provided in two sets, and the two sets of elastic rotating shaft assemblies are respectively provided on the two support plates.
[0008] Optionally, the elastic rotating shaft assembly includes a deformable spring and a rotating shaft. The top of the support plate has a notch. One end of the deformable spring is fixed to the groove wall of the notch, and the other outer side walls of the deformable spring do not contact the groove wall of the notch. The rotating shaft is fixedly connected to the deformable spring and is adapted to be inserted into the rotating hole. The rotating shaft and the rotating hole are clearance-fitted.
[0009] Optionally, the cover plate has a relaxation groove on the side near the rotating shaft. When the cover plate is in the retracted state, the rotating shaft is inserted into the relaxation groove and does not contact the cover plate.
[0010] Optionally, when the cover plate is housed in the sliding cavity, the top of the cover plate protrudes from the partition plate but not from the side plate.
[0011] Optionally, the bottom end of the cover plate is provided with a rotation limiting block, and the side plate is provided with a rotation limiting groove on the side near the partition. When the cover plate is in the open state, the rotation limiting block is inserted into the rotation limiting groove to limit the rotation angle of the cover plate.
[0012] Optionally, a blocking block is provided on the top of the partition near the side plate. When the elastic rotating shaft assembly is inserted into the rotating hole, the blocking block and the rotation limiting block abut against each other to block and limit the extension movement of the cover plate.
[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0014] 1. During the movement of the cover plate, the elastic rotating shaft assembly will be flexibly matched with the cover plate. That is, the elastic rotating shaft assembly will undergo elastic deformation to make way when squeezed, which reduces the wear of the elastic rotating shaft assembly. After the cover plate is pulled out and inserted multiple times, the elastic rotating shaft can still be locked into the rotating hole to allow the cover plate to rotate smoothly.
[0015] 2. The deformation spring is fixedly connected to the support plate at only one end. It can deform in time after being subjected to force. When the rotating shaft is squeezed, it can better drive the deformation spring to deform the rotating shaft to make way.
[0016] 3. When the cover plate is in the retracted state, the rotating shaft is located in the relaxation groove and does not contact the cover plate. The deformation spring will also be in a natural relaxed state. It is not easy to lose elasticity due to deformation fatigue caused by being in a deformed state for a long time under force. This allows the deformation spring to have a good deformation recovery ability for a long time, thereby improving the stability of the rotating shaft inserted into the rotating hole.
[0017] 4. When the cover is in the open rotating state, the rotation limit block can be inserted into the rotation limit groove to limit the rotation of the cover, so that the cover is not easy to rotate excessively.
[0018] 5. When the cover plate is pulled out of the sliding cavity, the blocking block and the rotation limiting block can abut against each other to form a limit, making it difficult for the cover plate to detach from the sliding cavity, thus improving the stability of the fit between the cover plate and the substrate assembly.
[0019] In addition, this utility model provides a folding shopping box, including the cover plate connection structure described above.
[0020] Compared to existing technologies, the folding shopping box described in this utility model and the aforementioned cover plate connection structure have the same advantages over existing technologies, which will not be repeated here. Attached Figure Description
[0021] Figure 1 This is a structural diagram of the cover plate in a retracted state in an embodiment of this utility model;
[0022] Figure 2 This is an exploded view of the substrate assembly and cover plate in an embodiment of this utility model;
[0023] Figure 3 for Figure 2 Enlarged view of section A in the middle;
[0024] Figure 4 This is a partial enlarged view of the rotating shaft and rotating hole in the embodiment of this utility model.
[0025] Figure 5 This is a partial enlarged view of the cover plate in its retracted state in an embodiment of this utility model;
[0026] Figure 6 This is a structural diagram of the cover plate in an embodiment of the present utility model;
[0027] Figure 7 This is a partial cross-sectional view of the blocking block and the rotation limiting block in the embodiment of this utility model.
[0028] Figure 8 This is a partial cross-sectional view of the cover plate in the open state in an embodiment of this utility model.
[0029] Explanation of reference numerals in the attached drawings: 1. Substrate assembly; 11. Side plate; 111. Rotation limiting groove; 12. Partition plate; 121. Blocking block; 13. Support plate; 131. Notch groove; 2. Cover plate; 21. Rotation hole; 22. Relaxation groove; 23. Rotation limiting block; 231. Hook groove; 24. Clearance groove; 3. Elastic rotating shaft assembly; 31. Deformation spring; 32. Rotation shaft. Detailed Implementation
[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-8 This application will be described in further detail.
[0031] In a first aspect, this utility model embodiment provides a cover plate connection structure, referring to... Figure 1 and Figure 2 The cover plate connection structure includes a base plate assembly 1 and a cover plate 2. The cover plate 2 is located inside the base plate assembly 1 and is slidably connected to the base plate assembly 1 for storage. The base plate assembly 1 is provided with an elastic pivot assembly 3. When the cover plate 2 extends out of the base plate assembly 1 and is in the open state, the cover plate 2 can rotate 90 degrees through the elastic pivot assembly 3. During the sliding process of the cover plate 2 relative to the base plate assembly 1, the elastic pivot assembly 3 is compressed and undergoes elastic deformation to make room, thereby forming a flexible fit and reducing the wear of the elastic pivot assembly 3.
[0032] The retracted state of the cover plate 2 refers to the state in which the cover plate 2 is completely inserted into the substrate assembly 1 and hidden; the open state of the cover plate 2 refers to the state in which the cover plate 2 extends out of the substrate assembly 1 and is rotated 90 degrees relative to the substrate assembly 1 by the elastic pivot assembly 3.
[0033] Combination Figure 2 Reference Figure 3 and Figure 4 Since the elastic pivot assembly 3 is preferably located on the substrate assembly 1 in this embodiment, a rotation hole 21 is provided on the cover plate 2. When the cover plate 2 is in the open state, the elastic pivot assembly 3 is inserted into the rotation hole 21 so that the cover plate 2 can rotate smoothly relative to the substrate assembly 1. In another embodiment, the elastic pivot assembly 3 can be located on the cover plate 2, in which case the substrate assembly 1 has a rotation hole 21.
[0034] The substrate assembly 1 includes a side plate 11 and a partition plate 12. A mounting groove is formed on one horizontal side of the side plate 11, within which both the partition plate 12 and the cover plate 2 are located. This reduces the space occupied by the partition plate 12 and the cover plate 2, resulting in a thinner overall thickness and smaller volume. The partition plate 12 is located on the side of the cover plate 2 closest to the opening of the mounting groove. The partition plate 12 and the side plate 11 form a sliding cavity to accommodate the cover plate 2. The mounting groove extends vertically through the top of the side plate 11, allowing the cover plate 2 to slide stably and directionally within the sliding cavity and extend from the top of the side plate 11 into the open state.
[0035] Reference Figure 2 In this embodiment, the partition 12 and the side plate 11 are preferably connected by bolts. On the one hand, if the cover plate 2 is damaged and cannot be removed from the top of the side plate 11, the partition 12 can be removed from the side plate 11 and then the cover plate 2 can be taken out for repair or replacement. On the other hand, the connection between the partition 12 and the side plate 11 by bolts is more stable and reliable. In another embodiment, the partition 12 can be connected to the side plate 11 by a snap-fit structure.
[0036] Reference Figure 1 and Figure 2When the cover plate 2 is in the retracted state and stored in the sliding cavity, the top of the cover plate 2 protrudes from the partition plate 12 but not from the side plate 11. That is, the top of the partition plate 12 is lower than the top of the side plate 11, and the top of the cover plate 2 is higher than the top of the partition plate 12, so that the top of the cover plate 2 can be exposed, making it convenient for the user to pick up the top of the cover plate 2 and drive the cover plate 2 out of the sliding cavity.
[0037] Combination Figure 2 Reference Figure 3 and Figure 4 The partition 12 has two integrally formed support plates 13 on the side near the side plate 11. The two support plates 13 are arranged at intervals along a direction perpendicular to the sliding direction of the cover plate 2, allowing the cover plate 2 to slide directionally between the two support plates 13. Two sets of elastic rotating shaft assemblies 3 are provided, each set located on one of the two support plates 13, ensuring that both sides of the cover plate 2 are constrained by the elastic rotating shaft assemblies 3 during rotation, thus guaranteeing the smoothness of the cover plate 2's rotation. In another embodiment, the partition 12 may not have support plates 13, and the elastic rotating shaft assemblies 3 may be provided on the side plate 11.
[0038] The following description uses the combination of a set of elastic rotating shafts 3 and a support plate 13 as an example. The elastic rotating shaft set 3 includes a deformable spring 31 and a rotating shaft 32. The rotating shaft 32 is located on the side of the deformable spring 31 near the cover plate 2. The rotating shaft 32 and the deformable spring 31 are integrally formed and are suitable for insertion into the rotating hole 21. When the cover plate 2 slides, the rotating shaft 32 is in interference contact with the cover plate 2. The top of the support plate 13 has a notch 131, which extends through the support plate 13 along its thickness (perpendicular to the sliding direction of the cover plate 2). The bottom end of the deformable spring 31 abuts against the groove wall of the notch 131 on the side away from the top of the support plate 13 and is integrally formed. However, the other outer walls of the deformable spring 31 do not contact the other groove walls of the notch 131. When the cover plate 2 applies a compressive force to the rotating shaft 32 during the sliding process, it can better drive the deformable spring 31 to deform and make way for the rotating shaft 32, changing the fit between the cover plate 2 and the rotating shaft 32 into a flexible fit, reducing the wear of the rotating shaft 32.
[0039] Combination Figure 2 Reference Figure 3 and Figure 5 The cover plate 2 is provided with a relaxation groove 22 on the side near the rotating shaft 32. When the cover plate 2 is in the stored state, the rotating shaft 32 is inserted into the relaxation groove 22 and does not contact the cover plate 2. Correspondingly, the deformation spring 31 will also be in a natural relaxed state. The deformation spring 31 is not prone to deformation fatigue due to being in a deformed state for a long time and losing its restoring elasticity, so that the deformation spring 31 has a good deformation restoring ability for a long time.
[0040] The relaxation groove 22 has a transition slope on the side of the groove wall near the bottom of the cover plate 2. When the cover plate 2 moves upward and extends, the rotating shaft 32 can smoothly disengage from the relaxation groove 22 under the action of the transition slope and contact the outer wall of the cover plate 2.
[0041] Combination Figure 2 Reference Figures 6-8 The bottom end of the cover plate 2 is integrally formed with a rotation limiting block 23, and the side plate 11 is provided with a rotation limiting groove 111 on the side near the partition plate 12. When the cover plate 2 is in the open state, the rotation limiting block 23 is inserted into the rotation limiting groove 111, and the cover plate 2 also contacts the top of the partition plate 12, thereby limiting the rotation of the cover plate 2. In addition, in order to allow the rotation limiting block 23 to be inserted into the rotation limiting groove 111 relatively smoothly, in this embodiment, the rotating hole 21 is preferably an oblong hole, and the diameter and length of the rotating hole 21 are both larger than the rotating shaft 32, so that the rotating shaft 32 and the rotating hole 21 are in clearance fit.
[0042] Combination Figure 2 Reference Figures 6-8 A blocking block 121 is provided on the top of the partition 12 near the side plate 11, and a clearance groove 24 is provided on the side of the cover plate 2 near the partition 12. The clearance groove 24 is on the same straight line as the rotation limiting block 23. The rotation limiting block 23 near the partition 12 has a hook groove 231 that communicates with the clearance groove 24, and the blocking block 121 is located at the opening of the clearance groove 24. When the cover plate 2 moves, the blocking block 121 moves relative to the opening of the clearance groove 24. When the rotating shaft 32 is inserted into the rotating hole 21, the blocking block 121 is located in the hook groove 231 and abuts against the rotation limiting block 23 to block and limit the extension movement of the cover plate 2, making it difficult for the cover plate 2 to detach from the sliding cavity, thus improving the stability of the fit between the cover plate 2 and the substrate assembly 1.
[0043] The implementation principle of a cover plate connection structure in this application embodiment is as follows: when the cover plate 2 is in the stored state, the deformation spring 31 is in a natural relaxed state and is not subject to any force. At this time, the rotating shaft 32 is located in the relaxation groove 22 and does not contact the cover plate 2.
[0044] When the cover plate 2 moves relative to the side plate 11 and the rotating shaft 32 disengages from the relaxation groove 22, the cover plate 2 and the rotating shaft 32 are in an interference fit. The cover plate 2 will squeeze the rotating shaft 32. When the rotating shaft 32 is squeezed by the cover plate 2, it will transmit the squeezing force to the deformation spring 31. After the deformation spring 31 is subjected to force, it can promptly drive the rotating shaft 32 to deform away from the cover plate 2 to make way, so as to reduce the wear on the rotating shaft 32.
[0045] When the rotating hole 21 moves to the position of the rotating shaft 32, the deformable spring 31 will reset under its own elasticity and drive the rotating shaft 32 to be inserted into the rotating hole 21. At this time, the cover plate 2 can rotate with the rotating shaft 32 as the rotation center axis.
[0046] Secondly, another embodiment of the present invention provides a folding shopping box, on which the cover plate connecting structure described in the first aspect is installed, so that the cover plate 2 can be stably connected to the box body and rotate smoothly.
[0047] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.
[0048] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0049] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0050] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0051] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0052] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.
[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0054] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.
Claims
1. A cover plate connection structure, characterized in that: The utility model provides a kind of sliding cover, including substrate assembly (1) and cover plate (2), the cover plate (2) is slidably connected with the substrate assembly (1) to be received, the substrate assembly (1) or the cover plate (2) is equipped with elastic pivot group (3), the cover plate (2) or the substrate assembly (1) is equipped with rotating hole (21);When the cover plate (2) is in open state, the elastic pivot group (3) is inserted in the rotating hole (21) to make the cover plate (2) rotate relative to the substrate assembly (1);When the cover plate (2) slides relative to the substrate assembly (1), the elastic pivot group (3) is extruded and elastically deformed to give way.
2. The cover plate connecting structure according to claim 1, characterized by: The substrate assembly (1) includes a side plate (11) and a partition plate (12), the side plate (11) is detachably connected with the partition plate (12), and the side plate (11) and the partition plate (12) are spaced apart to form a sliding cavity, and the cover plate (2) is inserted into the sliding cavity.
3. The cover plate connection structure according to claim 2, characterized by: The elastic pivot group (3) is arranged on the side plate (11) or the partition plate (12), and the rotating hole (21) is arranged on the cover plate (2), and the rotating hole (21) is a waist-shaped hole.
4. The cover plate connection structure according to claim 3, characterized by: The partition plate (12) is formed with two support plates (13) on the side close to the side plate (11), the two support plates (13) are arranged in parallel with respect to the sliding direction of the cover plate (2), the cover plate (2) is located between the two support plates (13), and the elastic pivot group (3) is provided in two groups, and the two groups of elastic pivot groups (3) are arranged on the two support plates (13) respectively.
5. The cover plate connection structure according to claim 4, characterized by: The elastic pivot group (3) includes a deformation spring (31) and a rotating shaft (32), the support plate (13) is provided with a notch groove (131) at the top, one end of the deformation spring (31) is fixed to the groove wall of the notch groove (131), and the rest of the outer side wall of the deformation spring (31) is not in contact with the groove wall of the notch groove (131), the rotating shaft (32) is fixedly connected to the deformation spring (31) and is adapted to be inserted into the rotating hole (21), and the rotating shaft (32) is in clearance fit with the rotating hole (21).
6. The cover plate connection structure according to claim 5, characterized by: The side close to the rotating shaft (32) of the cover plate (2) is provided with a relaxation groove (22), and when the cover plate (2) is in the receiving state, the rotating shaft (32) is inserted into the relaxation groove (22) and does not contact the cover plate (2).
7. The cover plate connection structure according to any one of claims 2 to 6, characterized by: When the cover plate (2) is received in the sliding cavity, the top of the cover plate (2) protrudes from the partition plate (12) but does not protrude from the side plate (11).
8. The cover plate connection structure according to claim 7, characterized by: The bottom end of the cover plate (2) is provided with a rotation limiting block (23), the side close to the partition plate (12) of the side plate (11) is provided with a rotation limiting groove (111), and when the cover plate (2) is in the open state, the rotation limiting block (23) is inserted into the rotation limiting groove (111) to limit the rotation angle of the cover plate (2).
9. The cover plate connection structure according to claim 8, characterized by: The side of the top end of the partition plate (12) close to the side plate (11) is provided with a blocking block (121), when the elastic rotating shaft group (3) is inserted into the rotating hole (21), the blocking block (121) and the rotating limiting block (23) abut against each other, and the extension movement of the cover plate (2) is blocked and limited.
10. A folding carton, characterized by A cover plate connection structure as claimed in any of claims 1 to 9.