A packing box with buffer protection structure for abrasive sheet

By using modular design and a buffer structure, the problems of fixed capacity and low assembly efficiency of frosted sheet packaging boxes were solved, achieving capacity adjustment and connection stability, and reducing production costs.

CN224529393UActive Publication Date: 2026-07-21ZHEJIANG ZHUOFAN PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHUOFAN PRINTING CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing frosted paper packaging boxes have fixed capacity and low assembly efficiency, resulting in poor adaptability and an inability to adjust the space according to the thickness of the frosted paper, thus wasting space.

Method used

It adopts a modular design, including components such as a first protective frame, plug rod, connecting block, card plate, second protective frame, elastic plug strip, and card slot. It forms a stable foundation through plugging and snapping, realizes adjustable capacity, and enhances the connection strength through fixing plate, reinforcing plate and plug hole. Combined with buffer pad, spring and silicone pad, it provides buffering and limiting.

Benefits of technology

It enables flexible capacity adjustment, prevents excess capacity waste, enhances connection stability, provides sufficient buffering and limiting, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of sanding sheet, specifically a sanding sheet packing carton with buffer protection structure, including bottom plate, the bottom fixed mounting of bottom plate has the support leg, the top of bottom plate is provided with support mechanism, the top of support mechanism is provided with expansion mechanism, the top of bottom plate is provided with through -hole, second protection frame bottom side away from the both sides of elastic plug bar is provided with the docking mechanism, the top of bottom plate is provided with protection assembly, through the setting of first protection frame, plug rod, connecting clamping block, clamping plate, second protection frame, elastic plug bar, clamping block and slot, make first protection frame, plug rod and the cooperation of connecting clamping block can be quickly inserted in the top of bottom plate, thereby can form a stable foundation, and through the clamping of clamping plate makes first protection frame can stably connect with bottom plate, prevents the loosening in the packing process.
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Description

Technical Field

[0001] This utility model belongs to the field of frosted sheet technology, specifically a frosted sheet packaging box with a buffer protection structure. Background Technology

[0002] Currently, as a commonly used consumable in industrial grinding, metal processing, and building material polishing, the packaging design of abrasive discs has long faced the problem of balancing protection and adaptability.

[0003] As disclosed in Chinese Patent No. CN221050442U, a frosted sheet packaging box with a cushioning protection structure includes an outer box and a lid. Inside the outer box, a first inner box and a second inner box are sequentially arranged. Multiple support blocks are rectangularly distributed within the second inner box, and grooves for filling with moisture-absorbing fabric are formed on the support blocks. A cushioning mechanism consisting of springs and a cushioning component is provided between the first inner box and the outer box. A strip-shaped air bag is placed in the gap between the first and second inner boxes. Using the above technical solution, a frosted sheet packaging box with a cushioning protection structure is manufactured. By setting the outer box and the first inner box, items placed in the second inner box can be well protected. The springs, cushioning component, and strip-shaped air bag simultaneously provide cushioning and energy absorption, and the moisture-absorbing fabric bag filled in the lower part of the groove provides a dehumidification effect, thereby effectively reducing the humidity inside the box.

[0004] While the aforementioned patent can effectively reduce the humidity inside the box by filling the moisture-absorbing cloth bag at the bottom of the groove, it also suffers from fixed capacity and low assembly and expansion efficiency. This leads to poor adaptability and the inability to adjust the space according to the thickness of the frosted paper, resulting in wasted space.

[0005] Therefore, this utility model provides a frosted packaging box with a buffer protection structure. Utility Model Content

[0006] To overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a frosted sheet packaging box with a buffer protection structure is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is: the frosted packaging box with a buffer protection structure of this utility model includes a bottom plate, a support leg fixedly installed at the bottom of the bottom plate, a support mechanism provided at the top of the bottom plate, an expansion mechanism provided at the top of the support mechanism, and a through hole opened at the top of the bottom plate.

[0008] The support mechanism includes a first protective frame; the first protective frame is movably connected to the top of the base plate, and several sets of insert rods arranged in a circumferential array are fixedly installed at the bottom of the first protective frame. The bottom of the insert rods is fixedly installed with a connecting block, and the insert rods and connecting blocks are movably inserted into the base plate through through holes opened at the top of the base plate. A locking plate is slidably connected to the connecting block, and the locking plate is located at the bottom of the base plate. The cooperation of the first protective frame, insert rods, and connecting blocks can be quickly inserted into the top of the base plate, thereby forming a stable foundation. The locking plate ensures that the first protective frame is stably connected to the base plate, preventing loosening during packaging.

[0009] Preferably, the expansion mechanism includes several sets of second protective frames; the second protective frames are slidably fitted on the top of the first protective frame, and two sets of elastic inserts are fixedly installed on the bottom of the second protective frame. The bottom of the two sets of elastic inserts on opposite sides are fixedly installed with a locking block. The first and second protective frames have locking slots on both sides, and the locking block is engaged in the locking slot. In this scheme, the cooperation of the second protective frame, elastic inserts, locking block and locking slot can realize the mutual locking between multiple sets of second protective frames, and can also be locked and connected with the first protective frame. This modular design allows the capacity to be adjusted at will, thereby preventing excess capacity and waste.

[0010] Preferably, the docking mechanism includes a fixing plate, a reinforcing plate, and a socket. The fixing plate is fixedly installed on both sides of the bottom of the second protective frame away from the elastic insert. The reinforcing plate is fixedly installed on both sides of the first and second protective frames near the fixing plate. The socket is opened on the top side of the first and second protective frames near the reinforcing plate. The fixing plate is movably inserted into the socket. In this scheme, the cooperation of the fixing plate, the reinforcing plate, and the socket can enhance the connection strength and stability of the second protective frame and prevent it from deforming and bending under external forces.

[0011] Preferably, the protective component includes a cushioning pad and a storage box. The cushioning pad is fixedly installed on the top of the base plate, and the storage box is movably installed on the top of the cushioning pad. In this design, the cushioning pad can provide sufficient cushioning for the bottom of the storage box, and the storage box allows the user to conveniently place the frosting pad on its inner wall.

[0012] Preferably, the buffer mechanism includes springs, silicone pads, and limiting plates. Several sets of springs are provided, and these sets are fixedly installed on both sides of the inner walls of the second and first protective frames. One end of each of the two sets of springs on the inner wall of the first protective frame is fixedly installed to the storage box. One end of each of the springs on both sides of the inner wall of the second protective frame is fixedly installed to the limiting plates. The silicone pads are fixedly installed on the inner walls of the first and second protective frames away from the springs. In this design, the combined use of springs, silicone pads, and limiting plates provides a buffering effect on the storage box. Simultaneously, when the sandpaper is stacked too high, the limiting plates can also limit the sandpaper's position, ensuring the sandpaper's neatness.

[0013] Preferably, the base plate, the first protective frame, and the second protective frame are all made of aluminum alloy. In this solution, the aluminum alloy material can reduce the overall weight of the base plate, the first protective frame, and the second protective frame. At the same time, it has high hardness and can withstand stronger impact. In addition, its cost is relatively cheaper than that of similar metals, which can reduce production costs.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The frosted sheet packaging box with a buffer protection structure described in this utility model, through the arrangement of a first protective frame, insert rod, connecting block, card plate, second protective frame, elastic insert, card block and card slot, allows the first protective frame, insert rod and connecting block to be quickly inserted into the top of the base plate, thereby forming a stable foundation. The card plate ensures that the first protective frame is stably connected to the base plate, preventing loosening during packaging. The second protective frame, elastic insert, card block and card slot can be used to achieve mutual interlocking between multiple sets of second protective frames, and can also be interlocked with the first protective frame. This modular design allows the capacity to be adjusted at will, thereby preventing waste due to excess capacity.

[0016] 2. The frosted sheet packaging box with a buffer protection structure described in this utility model can enhance the connection strength and stability of the second protective frame through the combined use of the fixing plate, the reinforcing plate and the insertion hole, and prevent it from being deformed and bent by external forces. The buffer pad can provide sufficient cushioning for the bottom of the storage box, and the storage box can make it convenient for users to place the frosted sheet on its inner wall. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a front perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram showing the cooperation relationship between the upper cover plate and the second protective frame in this utility model;

[0020] Figure 3 This is an exploded view of this utility model;

[0021] Figure 4 This is a schematic diagram of the protective component structure in this utility model;

[0022] Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle.

[0023] Legend:

[0024] 1. Base plate; 2. Support leg; 3. Support mechanism; 31. First protective frame; 32. Insert rod; 33. Connecting block; 34. Card plate; 4. Expansion mechanism; 41. Second protective frame; 42. Elastic insert; 43. Card block; 44. Card slot; 5. Docking mechanism; 51. Fixing plate; 52. Reinforcing plate; 53. Insertion hole; 6. Protective component; 61. Buffer pad; 62. Storage box; 7. Buffer mechanism; 71. Spring; 72. Silicone pad; 73. Limiting plate; 8. Top cover plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] like Figures 1 to 5As shown in the figure, a frosted packaging box with a buffer protection structure according to an embodiment of the present invention includes a base plate 1, a support leg 2 fixedly installed at the bottom of the base plate 1, a support mechanism 3 provided at the top of the base plate 1, an expansion mechanism 4 provided at the top of the support mechanism 3, and a through hole opened at the top of the base plate 1. The support mechanism 3 includes a first protective frame 31; the first protective frame 31 is movably connected to the top of the base plate 1, and a plurality of sets of insert rods 32 arranged in a circumferential array are fixedly installed at the bottom of the first protective frame 31. The bottom of the insert rods 32 is fixedly installed with a connecting block 33, and the insert rods 32 are connected to the connecting block 33. The connecting block 33 is movably inserted into the base plate 1 through a through hole at the top of the base plate 1. A locking plate 34 is slidably connected to the connecting block 33, and the locking plate 34 is located at the bottom of the base plate 1. The expansion mechanism 4 includes several sets of second protective frames 41. The second protective frames 41 are slidably fitted onto the top of the first protective frame 31. Two sets of elastic inserts 42 are fixedly installed at the bottom of the second protective frame 41. The bottom of the two sets of elastic inserts 42 on opposite sides are fixedly installed to the connecting block 43. The first protective frame 31 and the second protective frame 41 have slots 44 on both sides, and the connecting block 43 is engaged in the slots 44. The top of the second protective frame 41 is snapped with a top cover plate 8. The docking mechanism 5 includes a fixing plate 51, a reinforcing plate 52, and an insertion hole 53. The fixing plate 51 is fixedly installed on both sides of the bottom of the second protective frame 41 away from the elastic insert 42. The reinforcing plate 52 is fixedly installed on both sides of the first protective frame 31 and the second protective frame 41 near the fixing plate 51. The insertion hole 53 is opened on the top side of the first protective frame 31 and the second protective frame 41 near the reinforcing plate 52. The fixing plate 51 is movably inserted into the insertion hole 53. The protective component 6 includes a buffer pad 61 and a storage box 62. The buffer pad 61 is fixedly installed on the top of the base plate 1, and the storage box 62 is movably inserted into the base plate 1. Installed on top of the buffer pad 61, the buffer mechanism 7 includes a spring 71, a silicone pad 72, and a limiting plate 73. Several sets of springs 71 are provided, and several sets of springs 71 are fixedly installed on both sides of the inner wall of the second protective frame 41 and the first protective frame 31. One end of the two sets of springs 71 on the inner wall of the first protective frame 31 is fixedly installed with the storage box 62. One end of the springs 71 on both sides of the inner wall of the second protective frame 41 is fixedly installed with the limiting plate 73. The silicone pad 72 is fixedly installed on both sides of the inner wall of the first protective frame 31 and the second protective frame 41 away from the springs 71. The base plate 1, the first protective frame 31, and the second protective frame 41 are all made of aluminum alloy.

[0028] like Figures 1 to 5As shown, the first protective frame 31, the insert rod 32, and the connecting block 33 work together to quickly insert into the top of the base plate 1, thus forming a stable foundation. The locking plate 34 ensures a stable connection between the first protective frame 31 and the base plate 1, preventing loosening during packaging. The second protective frame 41, the elastic insert 42, the locking block 43, and the slot 44 work together to allow multiple sets of second protective frames 41 to interlock, and also to connect with the first protective frame 31. This modular design allows for adjustable capacity, preventing waste due to overcapacity. The fixing plate 51, the reinforcing plate 52, and the insertion hole 53 reinforce the second protective frame 41. The connection strength and stability of 1 prevent deformation and bending under external force. The buffer pad 61 provides sufficient cushioning for the bottom of the storage box 62. The storage box 62 allows users to easily place the sandpaper on its inner wall. The combined use of spring 71, silicone pad 72 and limiting plate 73 provides cushioning for the storage box 62. At the same time, when the sandpaper is stacked too high, the limiting plate 73 can also limit the sandpaper to ensure the regularity of the sandpaper. The aluminum alloy material can reduce the overall weight of the base plate 1, the first protective frame 31 and the second protective frame 41. At the same time, its own hardness is also strong, which can withstand stronger impact. Moreover, its own cost is relatively cheaper than that of similar metals, which can reduce production costs.

[0029] Working principle: During operation, the base plate 1 is first placed on a flat surface. The user then picks up the first protective frame 31 and aligns its bottom insert rod 32 and connecting block 33 with the slot at the top of the base plate 1. The insert rod 32 and connecting block 33 are then inserted into the inner wall of the base plate 1, allowing the connecting block 33 to pass through the base plate 1. Next, the user picks up the clamping plate 34, aligns one side with the connecting block 33 and insert rod 32, and slides it to one side, causing the connecting block 33 to engage with the inner wall of the clamping plate 34. This prevents the first protective frame 31 from loosening. Simultaneously, the clamping plate 34, through friction with the base plate 1, prevents automatic movement. The user then picks up the second protective frame 41 and aligns its bottom elastic insert 42 with the top of the first protective frame 31, then inserts it downwards. During the insertion process, the elastic insert 42 will bend due to the influence of the locking block 43 until the locking block 43 moves to the slot 44. The elastic insert 42 will push the locking block 43 into the slot 44 through its elasticity to lock it in place. During the insertion of the elastic insert 42, the fixing plate 51 will be inserted into the socket 53 to strengthen the connection stability. The user can add or reduce the number of layers of the second protective frame 41 according to the thickness of the frosted sheet to ensure that no space is wasted.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A frosted sheet packaging box with a cushioning protective structure, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is fixedly installed with a support leg (2), the top of the base plate (1) is provided with a support mechanism (3), the top of the support mechanism (3) is provided with an expansion mechanism (4), and the top of the base plate (1) is provided with a through hole. The support mechanism (3) includes a first protective frame (31); the first protective frame (31) is movably connected to the top of the base plate (1), and a number of sets of insert rods (32) arranged in a circular array are fixedly installed at the bottom of the first protective frame (31). The bottom of the insert rods (32) is fixedly installed with the connecting block (33). The insert rods (32) and the connecting block (33) are movably inserted into the base plate (1) through the through hole opened at the top of the base plate (1). A card plate (34) is slidably connected on the connecting block (33). The card plate (34) is located at the bottom of the base plate (1). The expansion mechanism (4) includes several sets of second protective frames (41); the second protective frame (41) is slidably fitted on the top of the first protective frame (31), and two sets of elastic inserts (42) are fixedly installed at the bottom of the second protective frame (41). The bottom of the two sets of elastic inserts (42) on the side away from each other is fixedly installed with the locking block (43). The first protective frame (31) and the second protective frame (41) are provided with locking slots (44) on both sides. The locking block (43) is locked in the locking slot (44). The top of the second protective frame (41) is locked with an upper cover plate (8).

2. The frosted sheet packaging box with a cushioning protection structure according to claim 1, characterized in that: The bottom of the second protective frame (41) is provided with docking mechanisms (5) on both sides away from the elastic insert (42), and the top of the base plate (1) is provided with protective components (6).

3. A frosted sheet packaging box with a cushioning protection structure according to claim 2, characterized in that: The inner walls of the first protective frame (31) and the second protective frame (41) are provided with a buffer mechanism (7).

4. A frosted sheet packaging box with a cushioning protection structure according to claim 3, characterized in that: The docking mechanism (5) includes a fixing plate (51), a reinforcing plate (52), and a socket (53). The fixing plate (51) is fixedly installed on both sides of the bottom of the second protective frame (41) away from the elastic insert (42). The reinforcing plate (52) is fixedly installed on both sides of the first protective frame (31) and the second protective frame (41) near the fixing plate (51). The socket (53) is opened on the top side of the first protective frame (31) and the second protective frame (41) near the reinforcing plate (52). The fixing plate (51) is movably inserted into the socket (53).

5. A frosted sheet packaging box with a cushioning protection structure according to claim 4, characterized in that: The protective component (6) includes a cushioning pad (61) and a storage box (62). The cushioning pad (61) is fixedly installed on the top of the base plate (1), and the storage box (62) is movably installed on the top of the cushioning pad (61).

6. A frosted sheet packaging box with a cushioning protection structure according to claim 5, characterized in that: The buffer mechanism (7) includes a spring (71), a silicone pad (72), and a limiting plate (73). The spring (71) is provided in several sets. The several sets of springs (71) are fixedly installed on both sides of the inner wall of the second protective frame (41) and the first protective frame (31). One end of the two sets of springs (71) on the inner wall of the first protective frame (31) is fixedly installed with the storage box (62). One end of the springs (71) on both sides of the inner wall of the second protective frame (41) is fixedly installed with the limiting plate (73). The silicone pad (72) is fixedly installed on both sides of the inner wall of the first protective frame (31) and the second protective frame (41) away from the springs (71).

7. A frosted sheet packaging box with a cushioning protective structure according to claim 6, characterized in that: The base plate (1), the first protective frame (31) and the second protective frame (41) are all made of aluminum alloy.