Folding plate assembly and folding shopping cart
By using a rotating locking disc and a locking buckle to fix the structure, the problem of swaying and instability when the folding panel is unfolded is solved, the product structure is optimized and the load-bearing capacity is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO DELI TOOLS CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-24
AI Technical Summary
Existing folding panels are prone to wobbling and instability when unfolded, affecting the user experience and load-bearing capacity.
The rotating locking disc and the latch work together to fix the structure. The rotation of the folding plate is restricted by the arc-shaped groove and the protrusion of the rotating locking disc and the latch, which prevents the latch from protruding at the top of the folding plate, thus optimizing the product structure and increasing the contact area.
It effectively reduces the shaking of the folding panel when unfolded, improving the product's aesthetics and load-bearing capacity.
Smart Images
Figure CN224159288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily necessities technology, and more specifically, to a folding panel assembly and a folding shopping cart. Background Technology
[0002] Folding storage devices are a common tool used by people when shopping, especially since their folding function greatly saves space. Existing folding storage devices typically use hinged folding panels to achieve folding.
[0003] However, folding panels are prone to problems such as shaking and instability when unfolded and used. Utility Model Content
[0004] The purpose of this utility model is to provide a folding panel assembly and a folding shopping cart, which on the one hand can avoid the buckle being protruding at the top of the folding panel, optimize the overall structure of the product and improve its aesthetics; on the other hand, by rotating the locking disc and fixing it with the buckle, it is beneficial to reduce the shaking of the folding panel when it is unfolded and used, thereby improving the load-bearing capacity of the folding panel assembly and the folding shopping cart.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] In a first aspect, the present invention provides a folding plate assembly, including a first folding plate and a second folding plate, wherein the first folding plate and the second folding plate are rotatably connected so that the first folding plate and the second folding plate can be unfolded or folded. A rotating locking disc is rotatably connected to the first folding plate, and a locking buckle is fixedly provided on the second folding plate. When the first folding plate and the second folding plate are unfolded, the rotating locking disc rotates and cooperates with the locking buckle to fix them.
[0007] In an optional embodiment, the rotating locking disc has an arc-shaped groove on the side near the first folding plate, and the latch includes a protrusion; or the rotating locking disc has a protrusion on the side near the first folding plate, and the latch includes a groove; after the first folding plate and the second folding plate are unfolded, the rotating locking disc rotates, and the groove engages with the protrusion.
[0008] In an optional embodiment, the protrusion and the groove are arc-shaped, and the center of the protrusion and the groove coincides with the rotation center of the rotating lock disc.
[0009] In an optional embodiment, a positioning block is provided on one side of the protrusion, and a positioning groove that mates with the positioning block is provided on the side wall of the groove.
[0010] In an optional embodiment, one end of the groove is provided with an opening, and the rotating locking disc rotates to cause the protrusion to slide into the groove from the opening.
[0011] In an optional embodiment, a stop surface is provided at the end of the groove away from the opening.
[0012] In an optional embodiment, the rotating lock disc has a rotating groove on the side away from the first folding plate.
[0013] In an optional embodiment, the sidewalls of the rotating groove are provided with anti-slip textures.
[0014] In an optional embodiment, a positioning post is provided on the edge of the rotary locking disc, and a locking part that cooperates with the positioning post is provided on the first folding plate. When the rotary locking disc disengages from the latch, the positioning post and the locking part are fixed.
[0015] Secondly, the present invention provides a folding shopping cart, including the folding plate assembly described in any of the foregoing embodiments.
[0016] In an optional embodiment, there are two folding panel assemblies, with one folding panel assembly and the other folding panel assembly arranged opposite each other along one direction of the folding shopping cart; the folding shopping cart also includes a front panel, a rear panel, and a bottom plate, with the front panel and the rear panel arranged opposite each other along another direction of the folding shopping cart; the folding shopping cart includes a receiving cavity, with the inner wall surfaces of the folding panel assemblies, the front panel, the rear panel, and the bottom plate forming at least a portion of the wall surfaces corresponding to the receiving cavity; the rotating locking disc and the latch are disposed on the inner wall surface of the folding panel assembly.
[0017] The beneficial effects of the folding panel assembly and folding shopping cart provided in this embodiment of the invention include:
[0018] This utility model's folding panel assembly includes a first folding panel and a second folding panel. The first and second folding panels are rotatably connected to each other, allowing them to be unfolded or folded. A rotating locking disc is rotatably connected to the first folding panel. A latch is fixedly mounted on the second folding panel. When the first and second folding panels are unfolded, the rotating locking disc rotates and engages with the latch to secure them. When the first and second folding panels are folded, the rotating locking disc and latch are located within the planes of the first and second folding panels, respectively, i.e., on the sides of the folding shopping cart. By placing the rotating locking disc and latch on one side, this folding panel assembly, when applied to a folding shopping cart, allows the rotating locking disc and latch to be located on the side of the folding shopping cart, avoiding the latch protruding from the top of the folding panel, optimizing the overall product structure, improving product aesthetics, increasing the contact area between the shopping cart cover and the folding panel, and improving the shopping cart's load-bearing capacity. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a structural schematic diagram of the locked state of the folding plate assembly provided in this embodiment;
[0021] Figure 2 This is a structural schematic diagram of the unlocked state of the folding plate assembly provided in this embodiment;
[0022] Figure 3 for Figure 2 Enlarged view of part A in the image;
[0023] Figure 4 This is a schematic diagram of the structure of the first folding plate and the second folding plate provided in this embodiment;
[0024] Figure 5 for Figure 4 Enlarged view of part B in the image;
[0025] Figure 6 This is a first-view structural schematic diagram of the rotating locking disc provided in this embodiment;
[0026] Figure 7 This is a structural schematic diagram of the rotating locking disc from a second perspective provided in this embodiment;
[0027] Figure 8 This is a schematic diagram of the structure of the folding shopping cart provided in this embodiment.
[0028] Icons: 100-Folding plate assembly; 10-First folding plate; 11-Rotating lock disc; 111-Groove; 112-Opening; 113-Stop surface; 114-Positioning groove; 115-Through hole; 116-Rotating groove; 1161-Anti-slip texture; 117-Positioning post; 12-Rotating shaft; 121-Retaining ring; 122-First half-post; 123-Second half-post; 124-Cavity; 13-Concave cavity; 14-Engaging part; 20-Second folding plate; 21-Protrusion; 211-Positioning block; 200-Folding shopping cart; 201-Front panel. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.
[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0034] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0035] First Embodiment
[0036] Please refer to Figures 1-3 This embodiment provides a folding plate assembly 100, including a first folding plate 10 and a second folding plate 20. The first folding plate 10 and the second folding plate 20 are rotatably connected so that the first folding plate 10 and the second folding plate 20 can be unfolded or folded. A rotating locking disc 11 is rotatably connected to the first folding plate 10. A latch is fixedly provided on the second folding plate 20. When the first folding plate 10 and the second folding plate 20 are unfolded, the rotating locking disc 11 rotates and engages with the latch to fix them in place.
[0037] It is understood that the first folding plate 10 and the second folding plate 20 rotate relative to each other. When unfolded, the first folding plate 10 and the second folding plate 20 are located in the same plane, and when folded, the first folding plate 10 and the second folding plate 20 are in contact. When the first folding plate 10 and the second folding plate 20 are unfolded, they can be fixed by rotating the locking disc 11 to engage with the latch, so that the first folding plate 10 and the second folding plate 20 cannot rotate and maintain the unfolded state. When the first folding plate 10 and the second folding plate 20 are folded, the rotating locking disc 11 and the latch are located in the plane of the first folding plate 10 and the second folding plate 20, respectively. This avoids the latch protruding from the top of the folding plate, optimizes the overall structure of the product, and improves the product's aesthetics. On the other hand, the engagement of the rotating locking disc 11 with the latch helps to reduce the shaking of the folding plate when unfolded and used, thereby improving the load-bearing capacity of the folding plate assembly 100.
[0038] Specifically, please refer to Figures 4-7 In this embodiment, the rotating locking disc 11 has an arc-shaped groove 111 on the side near the first folding plate 10, and the latch includes an arc-shaped protrusion 21. When the first folding plate 10 and the second folding plate 20 are unfolded, the rotating locking disc 11 rotates, and the groove 111 and the protrusion 21 engage. It can be understood that when the rotating locking disc 11 rotates, the groove 111 and the protrusion 21 move relative to each other, and the protrusion 21 can slide into the groove 111, restricting the relative rotation of the first folding plate 10 and the second folding plate 20. When the first folding plate 10 and the second folding plate 20 rotate relative to each other, the protrusion 21 abuts against the side wall of the groove 111, making it impossible for the first folding plate 10 and the second folding plate 20 to rotate, thereby fixing the first folding plate 10 and the second folding plate 20.
[0039] Optionally, in other embodiments, the rotating locking disc 11 has an arc-shaped protrusion 21 on the side near the first folding plate 10, and the latch includes an arc-shaped groove 111. It is understood that as long as the protrusion 21 and the groove 111 can cooperate to fix the first folding plate 10 and the second folding plate 20, the specific positions of the protrusion 21 and the groove 111 are not limited in this utility model.
[0040] To facilitate the engagement of the protrusion 21 and the groove 111, in this embodiment, the centers of the protrusion 21 and the groove 111 coincide with the rotation center of the rotating locking disc 11. It is understood that when the rotating locking disc 11 rotates, the groove 111 and the protrusion 21 move concentrically relative to each other, preventing the protrusion 21 from contacting the sidewall of the groove 111 during rotation.
[0041] Furthermore, one end of the groove 111 is provided with an opening 112. The rotating locking disc 11 rotates to allow the protrusion 21 to slide into the groove 111 from the opening 112. Specifically, in this embodiment, when the first folding plate 10 and the second folding plate 20 are unfolded, the groove 111 and the protrusion 21 are located in the same plane. When the rotating locking disc 11 rotates, the opening 112 moves toward the protrusion 21, thereby allowing the protrusion 21 to slide into the groove 111 from the opening 112.
[0042] Optionally, in this embodiment, the rotating locking disc 11 rotates counterclockwise to move the opening 112 toward the protrusion 21, thereby locking the first folding plate 10 and the second folding plate 20. In other embodiments, the rotating locking disc 11 can be configured to rotate clockwise to move the opening 112 toward the protrusion 21. Specifically, the direction of the opening 112 can be set, and this utility model does not limit this.
[0043] Furthermore, in this embodiment, a stop surface 113 is provided at the end of the groove 111 away from the opening 112. It is understood that when the protrusion 21 slides into the groove 111 from the opening 112, as the rotating locking disc 11 continues to rotate, one end of the protrusion 21 will abut against the stop surface 113, thereby limiting the continued rotation of the rotating locking disc 11 and preventing the protrusion 21 from sliding out of the groove 111 due to excessive rotation angle. That is, in this embodiment, when the rotating locking disc 11 rotates counterclockwise, the protrusion 21 slides into the groove 111 to lock the first folding plate 10 and the second folding plate 20; when the rotating locking disc 11 rotates clockwise, the protrusion 21 slides out of the groove 111 to unlock the first folding plate 10 and the second folding plate 20. By providing the stop surface 113, both locking and unlocking operations correspond to a single rotation direction of the rotating locking disc 11.
[0044] Of course, in other embodiments, it can also be configured such that: rotating the locking disc 11 clockwise causes the protrusion 21 to slide into the groove 111 to lock the first folding plate 10 and the second folding plate 20, and rotating the locking disc 11 counterclockwise causes the protrusion 21 to slide out of the groove 111 to unlock the first folding plate 10 and the second folding plate 20. This utility model does not limit this.
[0045] In this embodiment, a positioning block 211 is provided on one side of the protrusion 21, and a positioning groove 114 that cooperates with the positioning block 211 is provided on the side wall of the groove 111. It is understood that when the first folding plate 10 and the second folding plate 20 are unfolded, rotating the rotating locking disc 11 locks the first folding plate 10 and the second folding plate 20. As the groove 111 and the protrusion 21 move relative to each other, the positioning groove 114 and the positioning block 211 move closer to each other. When the positioning block 211 and the positioning groove 114 engage, the locking operation is completed. By setting the positioning groove 114 and the positioning block 211, the operator can be prompted that the locking is in place. Furthermore, it can prevent external environmental factors from affecting the rotating locking disc 11, such as shaking causing the rotating locking disc 11 to rotate. When shaking occurs, the positioning block 211 and the positioning groove 114 engage, preventing the rotating locking disc 11 from rotating on its own and disengaging from the latch.
[0046] To improve the tactile feel of rotating the rotary lock disc 11, in this embodiment, a rotating groove 116 is provided on the side of the rotary lock disc 11 away from the first contact surface. Specifically, there are two rotating grooves 116, and the two rotating grooves 116 are symmetrically arranged around the rotation center of the rotary lock disc 11. It can be understood that when it is necessary to rotate the rotary lock disc 11, the operator inserts their thumb and forefinger into the rotating grooves 116 respectively, making it easier for the operator to rotate the rotary lock disc 11.
[0047] Specifically, the side wall of the rotating groove 116 near the rotation center of the rotating lock disc 11 is set as a curved surface to further improve the rotation feel of the rotating lock disc 11.
[0048] Furthermore, the sidewall of the rotating groove 116 is provided with anti-slip texture 1161. Specifically, the sidewall of the rotating groove 116 near the rotation center of the rotating lock disc 11 is provided with anti-slip texture 1161. That is, in this embodiment, the gripping position of the rotating lock disc 11 is provided with anti-slip texture 1161.
[0049] In this embodiment, the rotating locking disc 11 and the first folding plate 10 are configured as a detachable structure. Specifically, a rotating shaft 12 is fixed on the first folding plate 10. A through hole 115 is provided on the rotating locking disc 11. During installation, the rotating shaft 12 is passed through the through hole 115, so that the rotating locking disc 11 is sleeved on the rotating shaft 12. During disassembly, the rotating locking disc 11 can be pulled out.
[0050] Furthermore, a retaining ring 121 is provided on the top of the rotating shaft 12. When the rotating locking disc 11 is sleeved on the rotating shaft 12, the retaining ring 121 passes through the through hole 115 and abuts against the surface of the rotating locking disc 11 to prevent the rotating locking disc 11 from disengaging from the rotating shaft 12.
[0051] Furthermore, the rotating shaft 12 includes a first half-pillar 122 and a second half-pillar 123. A cavity 124 is provided between the first half-pillar 122 and the second half-pillar 123. It can be understood that the first half-pillar 122 and the second half-pillar 123 can be pressed into the middle cavity 124 to reduce the diameter of the top of the rotating shaft 12, thereby facilitating its passage through the through hole 115 and simplifying the installation and removal of the rotating lock disc 11.
[0052] Please continue to refer to Figures 1-3 The first folding plate 10 has a recess 13 on the side near the rotating locking disc 11, and the rotating locking disc 11 is located in the recess 13. It can be understood that the rotating locking disc 11 is lower than the plane of the first folding plate 10 to prevent the rotating locking disc 11 from contacting the outside first when the first folding plate 10 is folded.
[0053] Specifically, in this embodiment, both the first folding plate 10 and the second folding plate 20 are plastic parts, manufactured by injection molding. Both the first folding plate 10 and the second folding plate 20 are provided with multiple intersecting ribs. Among these, some of the ribs form cavities 13 to accommodate the rotating locking disc 11.
[0054] Please refer to Figure 3 Furthermore, in this embodiment, a positioning post 117 is provided on the edge of the rotating locking disc 11, and a locking part 14 that cooperates with the positioning post 117 is provided on the first folding plate 10. When the rotating locking disc 11 disengages from the latch, the positioning post 117 engages with the locking part 14. It can be understood that by setting the positioning post 117 to cooperate with the locking part 14, the relative fixation of the rotating locking disc 11 and the first folding plate 10 is achieved. When the rotating locking disc 11 rotates and disengages from the latch, the rotating locking disc 11 is less likely to rotate on its own under conditions such as shaking of the folding shopping cart 200.
[0055] Specifically, in this embodiment, the engaging portion 14 is a protrusion disposed within the recess 13. When the rotating locking disc 11 rotates and disengages from the latch, the positioning pin 117 abuts against the engaging portion 14, thereby fixing the rotating locking disc 11 to the first folding plate 10. Optionally, in other embodiments, the engaging portion 14 can also be configured as a clamp. When the rotating locking disc 11 continues to rotate, the positioning pin 117 rotates between the clamps, and the engaging portion 14 clamps the positioning pin 117 to fix the rotating locking disc 11 to the first folding plate 10. As long as the positioning pin can cooperate with the engaging portion 14 to fix the rotating locking disc 11 and the first folding plate 10, the structure of the engaging portion 14 is not limited in this invention.
[0056] Second Embodiment
[0057] Please refer to Figure 8This embodiment provides a folding shopping cart 200, which includes the folding plate assembly 100 of the first embodiment described above. Specifically, in this embodiment, both opposite sides of the folding shopping cart 200 can be configured as folding plate assemblies 100. In use, the first folding plate 10 and the second folding plate 20 can be folded together to reduce the volume of the folding shopping cart 200 and facilitate storage.
[0058] Optionally, in this embodiment, a folding plate assembly 100 is provided on one side of the folding shopping cart 200. A rotating locking disc 11 and a latch are disposed on the inner wall surface of the folding plate assembly 100. This arrangement, with the latch protruding from the top of the folding plate, optimizes the overall product structure and improves the aesthetics of the shopping cart. In other embodiments, the folding shopping cart 200 can have a larger unfolded volume. For example, multiple folding plate assemblies 100, such as two or three, can be provided on one side of the cart. Specifically, the multiple folding plate assemblies 100 are sequentially rotatably connected. This invention does not limit the number of folding plate assemblies 100 on the folding shopping cart 200.
[0059] Optionally, in one embodiment, there are two folding panel assemblies 100, with one folding panel assembly 100 and the other folding panel assembly 100 arranged opposite each other along one direction of the folding shopping cart 200; the folding shopping cart 200 also includes a front panel 201, a rear panel, and a bottom plate, with the front panel 201 and the rear panel arranged opposite each other along another direction of the folding shopping cart 200; the folding shopping cart 200 includes a receiving cavity, and the inner wall surfaces of the folding panel assembly 100, the front panel 201, the rear panel, and the bottom plate constitute at least a portion of the wall surface corresponding to the receiving cavity.
[0060] The beneficial effects of the folding panel assembly 100 and the folding shopping cart 200 provided in this embodiment of the invention include:
[0061] The folding panel assembly 100 of this utility model includes a first folding panel 10 and a second folding panel 20. The first folding panel 10 and the second folding panel 20 are rotatably connected so that the first folding panel 10 and the second folding panel 20 can be unfolded or folded. When the first folding panel 10 and the second folding panel 20 are unfolded, the rotating locking disc 11 can rotate and engage with the locking buckle to fix the first folding panel 10 and the second folding panel 20. When the first folding panel 10 and the second folding panel 20 are folded, the rotating locking disc 11 and the locking buckle are respectively located in the plane of the first folding panel 10 and the second folding panel 20, that is, respectively located on the side of the folding shopping cart 200. This folding panel assembly 100, by placing the rotating locking disc 11 and the buckle on one side, allows the rotating locking disc 11 and the buckle to be located on the side of the folding shopping cart 200 when applied to the folding shopping cart 200. On the one hand, this avoids the buckle protruding from the top of the folding panel, optimizing the overall structure of the product and improving its aesthetics. On the other hand, it helps reduce wobbling of the folding panel when unfolded and used. Moreover, compared to placing the buckle on the top of the folding panel, placing the rotating locking disc 11 and the buckle on the side of the folding shopping cart 200 increases the contact area between the shopping cart cover and the folding panel, thereby improving the load-bearing capacity of the shopping cart.
[0062] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A folding panel assembly, characterized in that, It includes a first folding plate and a second folding plate, which are rotatably connected to each other so that the first folding plate and the second folding plate can be unfolded or folded. A rotating locking disc is rotatably connected to the first folding plate, and a locking buckle is fixedly provided on the second folding plate. When the first folding plate and the second folding plate are unfolded, the rotating locking disc rotates and cooperates with the locking buckle to fix them.
2. The folded sheet assembly of claim 1, wherein, The rotating locking disc has an arc-shaped groove on the side near the first folding plate, and the latch includes a protrusion, or the rotating locking disc has a protrusion on the side near the first folding plate, and the latch includes a groove; after the first folding plate and the second folding plate are unfolded, the rotating locking disc rotates, and the groove engages with the protrusion.
3. The folded sheet assembly of claim 2, wherein, The protrusion and the groove are arc-shaped, and the center of the protrusion and the groove coincides with the rotation center of the rotating lock disc.
4. The folded sheet assembly of claim 2, wherein, A positioning block is provided on one side of the protrusion, and a positioning groove that cooperates with the positioning block is provided on the side wall of the groove.
5. The folded sheet assembly of claim 2, wherein, An opening is provided at one end of the groove, and the rotating locking disc rotates to allow the protrusion to slide into the groove from the opening.
6. The folded sheet assembly of claim 5, wherein, A stop surface is provided at the end of the groove away from the opening.
7. The folded sheet assembly of claim 1, wherein, The rotating lock disc has a rotating groove on the side away from the first folding plate.
8. The folded sheet assembly of claim 7, wherein, The sidewalls of the rotating groove are provided with anti-slip textures.
9. The folded sheet assembly of claim 1, wherein, The rotating locking disc has a positioning post on its edge, and the first folding plate has a locking part that cooperates with the positioning post. When the rotating locking disc disengages from the lock, the positioning post engages with the locking part.
10. A folding shopping cart, characterized by, Includes the folding plate assembly as described in any one of claims 1-9.
11. The foldable cart of claim 10, wherein, The folding panel assemblies are of two types, with one folding panel assembly and the other folding panel assembly positioned opposite each other along one direction of the folding shopping cart; the folding shopping cart also includes a front panel, a rear panel, and a bottom panel, with the front panel and the rear panel positioned opposite each other along another direction of the folding shopping cart; the folding shopping cart includes a receiving cavity, with the inner wall surfaces of the folding panel assemblies, the front panel, the rear panel, and the bottom panel forming at least a portion of the walls corresponding to the receiving cavity; the rotating locking disc and the latch are disposed on the inner wall surface of the folding panel assembly.