Foldable foam board

The design of rotating and snap-fit ​​connectors solves the problem of foam boards loosening during transportation, achieving stable connection and convenient operation of foam boards in different scenarios.

CN224131604UActive Publication Date: 2026-04-17ZHONGSHAN SHANGFU PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN SHANGFU PACKAGING CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-17

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Abstract

The utility model provides a foldable cystosepiment, which belongs to the technical field of cystosepiments and comprises a plurality of groups of cystosepiments, connecting frames are arranged on the peripheral sides of the plurality of groups of cystosepiments, and each connecting frame is connected with an adjacent group of connecting frames through a rotary connecting piece or a clamping connecting piece; the rotating connecting piece comprises a first rotating hinge and a second rotating hinge, the first rotating hinge is hinged to the second rotating hinge, a rotating shaft is arranged at the hinged position, an adjusting rod and multiple sets of ejector rods are arranged in the rotating shaft, and one ends of the multiple sets of ejector rods are slidably connected with the adjusting rod; a plurality of groups of first clamping grooves are formed in the first rotating hinge and the second rotating hinge; the other end of the ejector rod penetrates through the rotating shaft and is clamped in the first clamping grooves; knobs are arranged at one ends of the adjusting rods; the clamping connecting piece comprises a clamping seat and a clamping block, the clamping block is adjustably provided with a plurality of groups of clamping keys, and the clamping keys are clamped in the clamping seat. And through the arrangement of the rotary connecting piece and the clamping connecting piece, a user can select a connecting mode according to actual requirements, and the universality of the device is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of foam board technology, and more specifically, it relates to a foldable foam board. Background Technology

[0002] In the field of packaging protection, foam board, as a common cushioning material, is widely used in the packaging of various fragile items such as electronic products and glassware, providing protection during transportation. However, foam board occupies a significant amount of space when not in use, causing considerable inconvenience in warehousing and transportation. Furthermore, while traditional foam boards sometimes employ a nested, interlocking structure, this structure is prone to loosening during transportation. Consequently, folded foam boards are easily damaged by compression and impacts during transport and storage, affecting their subsequent normal use and increasing packaging costs. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a foldable foam board, which solves the technical problem that, although traditional foam boards employ a nested splicing structure, the spliced ​​structure is prone to loosening during transportation.

[0004] The purpose and effect of this utility model of a foldable foam board are achieved by the following specific technical means:

[0005] A foldable foam board includes multiple sets of foam boards, each set having a connecting frame on its periphery. The connecting frames are connected to adjacent sets of connecting frames via rotating connectors or snap-fit ​​connectors. Each rotating connector includes a first hinge and a second hinge, hinged together. A pivot is located at the hinge, and the pivot houses an adjusting rod and multiple sets of push rods. One end of each set of push rods is slidably connected to the adjusting rod. Multiple sets of first slots are formed within both the first and second hinges, and the other end of each push rod passes through the pivot and is engaged within one of the first slots. A knob is located at one end of the adjusting rod. The snap-fit ​​connector includes a base and a block, the block having adjustable multiple sets of locking keys, which are engaged within the base.

[0006] According to a preferred embodiment, the adjusting rod has multiple sets of sliding grooves, one end of the top rod is slidably connected to the sliding groove, and a return spring is provided at the end of the adjusting rod away from the knob, the return spring being located inside the rotating shaft.

[0007] According to a preferred embodiment, the knob is mounted on the first rotating plate via a bearing, and an end cap is fitted onto the knob. The end cap is mounted on the first rotating plate, and the knob is threadedly connected to the adjusting rod.

[0008] According to a preferred embodiment, the adjusting rod is provided with a limiting block, the rotating shaft is provided with a limiting groove, the limiting block is slidably disposed in the limiting groove, and the first slot is evenly distributed along the axial direction of the first rotating page and the second rotating page.

[0009] According to a preferred embodiment, the first and second rotating pages are provided with mounting blocks, the connecting frame is provided with mounting seats on its periphery, the mounting seats are provided with spring pressure plates, the mounting blocks are provided with grooves, and the spring pressure plates are engaged in the grooves.

[0010] According to a preferred embodiment, the locking block is provided with multiple sets of rotating rods and multiple sets of sleeves, the rotating rods are inserted into the sleeves, and one end of the rotating rod is connected to the locking key.

[0011] According to a preferred embodiment, the card holder is provided with a plurality of second card slots and a plurality of guide slots, the guide slots are connected to the second card slots, and the card key passes through the guide slots and is engaged in the second card slots.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through the design of rotating and snap-fit ​​connectors, allows users to choose the connection method according to actual needs, thus improving the versatility of the device. When it is necessary to adjust the angle of the foam board, the user can rotate the knob to drive the adjusting rod to rotate, causing the top rod to slide in the sliding groove and disengage from the first snap-fit ​​groove, thereby adjusting the angle between the first and second rotating pages. Then, by releasing the knob, the top rod re-engages into the appropriate first snap-fit ​​groove under the action of the return spring, allowing the user to change the folding angle of the foam board and improving the adaptability of the device in different scenarios.

[0014] 2. When using this device, the user can quickly connect or disconnect the card block from the card seat by rotating the lever on the card block, which moves the key within the sleeve. This allows the user to easily assemble and disassemble the foam board, improving the device's ease of operation. Furthermore, the cooperation between the guide groove on the card seat and the second card slot ensures a more stable connection, providing a reliable user experience and enhancing the device's stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of region a in the middle;

[0018] Figure 4 yes Figure 2 Enlarged view of region b in the middle;

[0019] Figure 5 yes Figure 2 Enlarged view of region c in the middle;

[0020] Figure 6 This is a schematic diagram of the structure of the push rod of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the second slot of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the rotating shaft of this utility model.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 11. Foam board; 12. Connecting frame; 13. First rotating page; 14. Second rotating page; 15. Rotating shaft; 151. Limiting groove; 16. Adjusting rod; 161. Sliding groove; 162. Limiting block; 17. Top rod; 18. First slot; 19. Knob; 21. Card seat; 211. Second slot; 212. Guide groove; 22. Card block; 23. Card key; 25. Return spring; 26. End cap; 27. Mounting block; 271. Groove; 28. Mounting base; 29. ​​Spring pressure plate; 31. Rotating rod; 32. Sleeve. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0026] Example:

[0027] like Figures 1 to 8 As shown, this utility model provides a foldable foam board, including multiple sets of foam boards 11. Each set of foam boards 11 has a connecting frame 12 on its periphery. The connecting frame 12 provides a basic structure for connecting the foam boards 11, facilitating subsequent connection using different connectors. The connecting frame 12 is connected to an adjacent set of connecting frames 12 via a rotating connector or a snap-fit ​​connector. The use of rotating and snap-fit ​​connectors allows users to choose the connection method according to their actual needs, improving the versatility of the device.

[0028] like Figure 2 , 3As shown in Figure 6, the rotating connector includes a first hinge 13 and a second hinge 14, which are hinged together. This hinge allows the two connecting frames 12 to rotate relative to each other, satisfying the folding requirements of the foam board 11 at different angles. A pivot 15 is provided at the hinge, and a protective corner strip is provided on one side of the pivot 15 to ensure the sealing of the foam board 11. An adjusting rod 16 and multiple sets of top rods 17 are provided inside the pivot 15, with one end of each set of top rods 17 slidably connected to the adjusting rod 16. This slidable connection between the adjusting rod 16 and the top rods 17 allows the position of the top rods 17 to be controlled by moving the adjusting rod 16. Both the first page 13 and the second page 14 have multiple sets of first slots 18. The other end of the top rod 17 passes through the rotating shaft 15 and is locked in the first slot 18. One end of the adjusting rod 16 is provided with a knob 19. With the setting of the knob 19, the user can easily operate the adjusting rod 16 manually to adjust the engagement position of the top rod 17 and the first slot 18.

[0029] like Figure 2 , 4 As shown in Figure 7, the snap-fit ​​connector includes a snap-fit ​​base 21 and a snap-fit ​​block 22. The snap-fit ​​block 22 is adjustablely provided with multiple sets of snap-fit ​​keys 23, which are snapped into the snap-fit ​​base 21. Through the cooperation of the snap-fit ​​base 21, the snap-fit ​​block 22, and the snap-fit ​​keys 23, the foam boards 11 can be quickly snapped together and separated, which is convenient for assembly and disassembly.

[0030] The adjusting rod 16 has multiple sliding grooves 161. One end of the top rod 17 is slidably connected to the sliding groove 161. A return spring 25 is provided at the end of the adjusting rod 16 away from the knob 19, and the return spring 25 is located inside the rotating shaft 15. By setting the return spring 25, the adjusting rod 16 can be automatically pushed back to its original position after the external force on the adjusting rod 16 is removed, so that the top rod 17 can be re-engaged into the appropriate first slot 18, ensuring that the angle of the foam board 11 is fixed.

[0031] The knob 19 is mounted on the first rotating plate 13 via a bearing. An end cap 26 is fitted onto the knob 19 and is also mounted on the first rotating plate 13. The knob 19 is threadedly connected to the adjusting rod 16. This mounting and connection method ensures the flexibility of the knob 19's rotation and simultaneously drives the adjusting rod 16.

[0032] like Figure 2 , 3 As shown in Figure 8, the adjusting rod 16 is provided with a limiting block 162, and the rotating shaft 15 is provided with a limiting groove 151. The limiting block 162 is slidably disposed in the limiting groove 151. The first slot 18 is evenly distributed along the axial direction of the first rotating page 13 and the second rotating page 14. By the cooperation of the limiting block 162 and the limiting groove 151, the adjusting rod 16 can be prevented from rotating within the rotating shaft 15.

[0033] like Figure 2 , 3 As shown in Figure 6, mounting blocks 27 are provided on the first rotating page 13 and the second rotating page 14, and mounting seats 28 are provided around the connecting frame 12. Spring pressure plates 29 are provided inside the mounting seats 28, and grooves 271 are provided on the mounting blocks 27, with the spring pressure plates 29 being engaged in the grooves 271. This arrangement enables a detachable connection between the rotating connector and the connecting frame 12.

[0034] like Figure 2 , 4 As shown in Figure 7, the locking block 22 is provided with multiple sets of rotating rods 31 and multiple sets of sleeves 32. The rotating rods 31 pass through the sleeves 32, and one end of the rotating rods 31 is connected to the locking key 23. Through the cooperation of the rotating rods 31 and the sleeves 32, the user can easily rotate the rotating rods 31 to drive the locking key 23 to move within the sleeves 32, thereby connecting or separating the locking block 22 from the locking seat 21.

[0035] The card holder 21 is provided with multiple sets of second card slots 211 and multiple sets of guide slots 212. The guide slots 212 communicate with the second card slots 211, and the key 23 passes through the guide slot 212 and is engaged in the second card slot 211. Through the cooperation of the guide slots 212 and the second card slots 211, the key 23 can be guided into the second card slot 211, making the device connection more stable.

[0036] The specific usage and function of this embodiment are as follows:

[0037] When the angle of the foam board 11 needs to be adjusted, the user rotates the knob 19. The knob 19 drives the adjusting rod 16 to rotate via a thread. The limiting block 162 on the adjusting rod 16 slides within the limiting groove 151 of the rotating shaft 15, ensuring stable movement of the adjusting rod 16. When the adjusting rod 16 rotates, the top rod 17 slides within the sliding groove 161 and disengages from the first locking groove 18. At this time, the angles of the first rotating page 13 and the second rotating page 14 can be adjusted to adapt to different packaging requirements. After adjustment, the knob 19 is released. Under the action of the return spring 25, the adjusting rod 16 returns to its original position, and the top rod 17 re-engages into the appropriate first locking groove 18, fixing the angle of the foam board 11. When assembling or disassembling the foam board 11, if the snap-fit ​​connector is selected, the user rotates the lever 31 on the locking block 22. The lever 31 moves the locking key 23 within the sleeve 32, and the locking key 23 passes through the guide groove 212 and snaps into the second locking groove 211 of the locking seat 21, achieving quick connection. Rotating the lever 31 in the opposite direction will disengage the locking key 23 from the second locking groove 211, achieving quick separation. After installation, install the protective corner strip.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A foldable foam panel comprising a plurality of panels (11) of foam, characterised in that: Each of the multiple sets of foam boards (11) is provided with a connecting frame (12) on its periphery. The connecting frame (12) is connected to the adjacent set of connecting frames (12) by a rotating connector or a snap-fit ​​connector. The rotating connector includes a first hinge (13) and a second hinge (14). The first hinge (13) and the second hinge (14) are hinged together. A pivot (15) is provided at the hinge. An adjusting rod (16) and multiple sets of top rods (17) are provided inside the pivot (15). One end of each set of top rods (17) is connected to... The adjusting rod (16) is slidably connected; multiple sets of first slots (18) are provided in both the first rotating page (13) and the second rotating page (14), and the other end of the top rod (17) passes through the rotating shaft (15) and is locked in the first slot (18); a knob (19) is provided at one end of the adjusting rod (16); the locking connector includes a card seat (21) and a card block (22), and the card block (22) is adjustablely provided with multiple sets of key (23), and the key (23) is locked in the card seat (21).

2. A foldable foam panel according to claim 1, wherein: The adjusting rod (16) has multiple sliding grooves (161), one end of the top rod (17) is slidably connected to the sliding groove (161), and a return spring (25) is provided at the end of the adjusting rod (16) away from the knob (19), and the return spring (25) is located inside the rotating shaft (15).

3. A foldable foam panel according to claim 2, wherein: The knob (19) is mounted on the first rotating page (13) via a bearing. An end cap (26) is fitted on the knob (19). The end cap (26) is mounted on the first rotating page (13). The knob (19) is threadedly connected to the adjusting rod (16).

4. A foldable foam panel according to claim 3, wherein: The adjusting rod (16) is provided with a limiting block (162), and the rotating shaft (15) is provided with a limiting groove (151). The limiting block (162) is slidably disposed in the limiting groove (151), and the first slot (18) is evenly distributed along the axial direction of the first rotating page (13) and the second rotating page (14).

5. A foldable foam panel according to claim 4, wherein: The first page (13) and the second page (14) are provided with mounting blocks (27), the connecting frame (12) is provided with mounting seats (28) on its periphery, the mounting seats (28) are provided with spring pressure plates (29), the mounting blocks (27) are provided with grooves (271), and the spring pressure plates (29) are engaged in the grooves (271).

6. The foldable foam panel of claim 1, wherein: The locking block (22) is provided with multiple sets of rotating rods (31) and multiple sets of sleeves (32). The rotating rods (31) are inserted into the sleeves (32), and one end of the rotating rods (31) is connected to the locking key (23).

7. A foldable foam panel according to claim 6, wherein: The card holder (21) is provided with multiple sets of second card slots (211) and multiple sets of guide slots (212). The guide slots (212) are connected to the second card slots (211). The key (23) passes through the guide slots (212) and is engaged in the second card slots (211).