Corrugated carton with multi-stage limiting structure

Abstract

The utility model discloses a corrugated carton with a multistage limiting structure. The corrugated carton comprises a bottom plate, a side plate is arranged on the side face of the bottom plate, a sliding groove is formed in the upper surface of the bottom plate, an insertion strip is fixedly pasted to the end, close to the bottom plate, of the side face of the side plate, and an anti-folding assembly is fixedly pasted to the end, close to the side plate, of the upper portion of the bottom plate. The anti-folding assembly comprises a first supporting plate adhered to the upper portion of the bottom plate, the first supporting plate is rotationally connected with a second supporting plate through a movable shaft, and hanging buckles are fixedly connected to the upper portion of the first supporting plate and the front face of the second supporting plate; by means of meshing fit of the insertion strips and the insertion grooves and elastic pre-tightening force of the supporting springs, a self-adaptive dynamic supporting system is formed when the bottom plate bears objects, when the side plates are affected by external pressure or vibration, stress concentration can be counteracted in real time through change of the movable included angle between the first supporting plate and the second supporting plate, and the service life of the side plates is prolonged. And meanwhile, multi-stage energy dissipation is achieved through cooperative deformation of the supporting springs and the elastic inner supporting rods, and the box body structure is effectively prevented from losing efficacy due to local overload.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, specifically a corrugated cardboard box with a multi-level limiting structure. Background Technology

[0002] Corrugated cardboard boxes are foldable transport containers made of corrugated cardboard. Their core structure is composed of corrugated core paper and flat linerboard (face paper and linerboard) bonded together to form a lightweight and high-strength composite board. The box body is made through processes such as die-cutting, creasing, and grooving. The box body is made by utilizing the arched mechanical properties of the corrugated structure to achieve compression resistance, impact resistance and cushioning functions. It is widely used in commodity storage and transportation, industrial packaging and e-commerce logistics.

[0003] Many existing corrugated cardboard boxes suffer from insufficient structural stability. When carrying heavy or irregularly shaped items, the side walls of the box are prone to bending or even tearing due to localized stress concentration. In particular, they lack an effective stress dispersion mechanism during transportation vibration. Their internal space division usually relies on fixed partitions or filling materials, which cannot dynamically adjust the limiting position according to the size of the items, making it difficult to balance space utilization and cargo adaptability. Utility Model Content

[0004] As a further embodiment of this utility model: a base plate, wherein a side plate is provided on the side of the base plate, a groove is provided on the upper surface of the base plate, an insert strip is fixedly attached to one end of the side plate near the base plate, and an anti-bending component is fixedly attached to one end of the upper surface of the base plate near the side plate;

[0005] The anti-bending component includes a first support plate pasted on the top of the base plate. The first support plate is rotatably connected to a second support plate via a movable shaft. Hooks are fixedly connected to the top of the first support plate and the front of the second support plate. A support spring is fixedly connected between the two sets of hooks. A groove matching the size of the insert is opened on the back of the second support plate. Adhesive is fixedly pasted on the inner side of the groove and on the top and bottom of the first support plate.

[0006] As a further improvement of this utility model: a clamping groove is provided on the side of the side plate near the upper end, a locking block is movably inserted into the inner side of the clamping groove, and an elastic inner support rod is fixedly connected to the side of the locking block.

[0007] As a further embodiment of this utility model: a slider is slidably engaged above the groove, and a first placement component is fixedly connected above the slider;

[0008] The first storage assembly includes a storage plate fixedly connected above the slider. A slot is longitudinally formed on the upper surface of the storage plate. A partition is movably engaged above the slot. A pressure groove is formed above the partition. A baffle is movably inserted above the pressure groove.

[0009] A rubber sleeve is fixedly connected to one end of the shelf near the edge. A connecting rod is fixedly inserted into the top of the rubber sleeve. A second shelf component is movably inserted into the top of the connecting rod. The rubber sleeve is also fixedly connected to one end of the second shelf component near the edge.

[0010] As a further embodiment of this utility model: the anti-bending component is attached to the connection between the base plate and the side plate, the side plates are symmetrically distributed on both sides of the base plate, and two sets of the anti-bending components are attached between one set of side plates and the base plate. The first support plate and the second support plate are both made of lightweight plastic material, and the hook and the support spring are made of metal material.

[0011] As a further improvement of this utility model: the number of elastic inner support rods is provided in multiple sets, and the protrusion of the locking block matches the size of the clamping groove.

[0012] As a further embodiment of this utility model: the shelf is snapped into the slot by a pressure block, and multiple sets of pressure slots are provided above the partition, in which the baffle can be inserted longitudinally.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By combining the interlocking of the insert strips and grooves with the elastic preload of the support spring, an adaptive dynamic support system is formed when the bottom plate carries items. When the side plate is affected by external pressure or vibration, the change in the angle between the first and second support plates can offset the stress concentration in real time. At the same time, the coordinated deformation of the support spring and the elastic inner strut achieves multi-level energy dissipation, effectively preventing the box structure from failing due to local overload.

[0015] The horizontal pulling of the slider along the groove and the vertical adjustment of the partition in the slot form a three-dimensional adjustable space division system. The precise positioning of items of different sizes is achieved by the deep insertion of the baffle in the pressure groove. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the side plate structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the anti-bending component in this utility model;

[0020] Figure 5This is a schematic diagram of the structure of the central storage component of this utility model.

[0021] In the diagram: 1. Base plate; 2. Side plate; 3. Slide groove; 4. Inlay strip; 5. Anti-bending component; 6. Clamping groove; 7. Locking block; 8. Elastic inner support rod; 9. Sliding block; 10. First storage component; 11. Rubber sleeve; 12. Connecting rod; 13. Second storage component; 51. First support plate; 52. Second support plate; 53. Hook; 54. Support spring; 55. Inlay groove; 56. Adhesive; 101. Storage board; 102. Locking groove; 103. Partition; 105. Pressing groove; 106. Baffle. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0024] Reference Figures 1 to 5In this embodiment of the utility model, a corrugated cardboard box with a multi-level limiting structure includes: the main body of the corrugated cardboard box is composed of a base plate 1 and side plates 2 symmetrically arranged on both sides thereon, as well as other auxiliary plates. The side plates 2 form the basic structure of the box body with the base plate 1 through a folding forming process. Two parallel sliding grooves 3 are opened along the length direction on the upper surface of the base plate 1. The sliding grooves 3 have a rectangular cross-section and a guide protrusion on the inner side. The side edge of the side plate 2 near the base plate 1 is fixed with an insert 4 by adhesive. The insert 4 is a long strip of plastic with a rectangular protrusion in cross-section. Anti-folding components 5 are fixedly pasted on the inner surface of the connection between the base plate 1 and the side plates 2. Two sets of anti-folding components 5 are provided at the connection between each set of side plates 2 and the base plate 1, symmetrically distributed on both sides of the sliding grooves 3.

[0025] The anti-bend assembly 5 consists of a first support plate 51 and a second support plate 52, which are hinged together by a movable shaft to form a rotatable structure. The first support plate 51 is a rectangular plastic plate, and its bottom surface is fixed to the surface of the base plate 1 with adhesive 56. The back of the second support plate 52 has a groove 55, the shape of which matches the strip 4 of the side plate 2. The two fit together to achieve positioning support for the side plate 2. Metal hooks 53 are welded to the upper surface of the first support plate 51 and the front surface of the second support plate 52, respectively. A support spring 54 is connected between the two sets of hooks 53, and the two ends of the spring are fixed to the hooks 53 by snap rings. The inner surface of the groove 55 of the second support plate 52 and the bottom surface of the first support plate 51 are covered with high-viscosity adhesive 56 to enhance the bonding strength between the assembly and the housing.

[0026] A clamping groove 6 is provided at the upper end of the side plate 2 near the opening. The clamping groove 6 is a rectangular groove with a guide slope on its inner side wall. A locking block 7 is inserted into the clamping groove 6. The locking block 7 is made of plastic and its protrusion matches the size of the clamping groove 6. Lateral displacement is achieved through sliding engagement. An elastic inner support rod 8 is integrally formed on the side of the locking block 7. The elastic inner support rod 8 is a metal spring steel sheet with an arc bend. Three sets of locking blocks 7 and corresponding elastic inner support rods 8 are equidistantly arranged along the length direction on each set of side plates 2.

[0027] The slider 9 is slidably engaged within the slide groove 3. The slider 9 is made of nylon and has a dovetail-shaped groove at its bottom that matches the slide groove 3. Lateral movement is achieved through sliding friction. The shelf 101 of the first storage component 10 is made of corrugated cardboard. Multiple slots 102 are longitudinally formed on its surface. The slots 102 are through slots with a width slightly smaller than the thickness of the partition 103. The partition 103 is made of rigid plastic and has a pressing block at its bottom that matches the slots 102. Vertical insertion and fixation are achieved through interference fit. Multiple pressing grooves 105 are formed on the upper surface of the partition 103. The pressing grooves 105 are rectangular through holes, and baffles 106 are longitudinally inserted into them. The baffles 106 are made of ABS plastic sheets and height adjustment is achieved through friction.

[0028] Rubber sleeves 11 are fixed at the four corners of the shelf 101. Metal connecting rods 12 are embedded in the rubber sleeves 11. The upper end of the connecting rods 12 is connected to the second shelf assembly 13 by threads. The structure of the second shelf assembly 13 is the same as that of the first shelf assembly 10. Its shelf is flexibly connected to the lower connecting rod 12 through the bottom rubber sleeves 11, allowing slight displacement between the upper and lower layers.

[0029] The working principle of this utility model is as follows:

[0030] When the base plate 1 bears the weight of the item, the side plate 2 forms an interlocking support with the groove 55 of the anti-bending component 5 through the insert strip 4. The support spring 54 generates an elastic preload under the traction of the hook 53, so that the first support plate 51 and the second support plate 52 form a dynamic angle under the action of the movable shaft. When the side plate 2 is squeezed by external force, the extension and contraction of the support spring 54 absorbs the impact energy as the angle changes. When the slider 9 moves laterally along the slide groove 3, it drives the shelf 101 to form a pull-out space, which is convenient for taking out and placing objects. After the partition 103 is inserted into the slot 102, the baffle 106 moves longitudinally in the pressure groove 105. The adjustment forms a multi-level limiting surface. When the rubber sleeve 11 is connected to the second storage component 13 through the connecting rod 12, it generates flexible damping to suppress the shaking of the upper items. When the side plate 2 is deformed by pressure, the block 7 is displaced in the groove 6, triggering the bending deformation of the elastic inner support rod 8. Its rebound force compensates for the deformation of the side plate 2 in the opposite direction. The friction contact surface between the groove 102 on the surface of the storage plate 101 and the partition 103 changes the limiting strength with the insertion depth of the baffle 106. The longitudinal isolation space cavity formed by the combination of the storage plate 101 and the partition 103 adaptively adjusts the space division ratio according to the position of the baffle 106.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A corrugated cardboard box with a multi-level limiting structure, characterized in that, include: A base plate (1) is provided with a side plate (2) on the side of the base plate (1). A groove (3) is provided on the upper surface of the base plate (1). A strip (4) is fixedly pasted on the side of the side plate (2) near the base plate (1). An anti-bending component (5) is fixedly pasted on the upper end of the base plate (1) near the side plate (2). The anti-bending component (5) includes a first support plate (51) pasted on the top of the base plate (1). The first support plate (51) is rotatably connected to a second support plate (52) via a movable shaft. Hooks (53) are fixedly connected to the top of the first support plate (51) and the front of the second support plate (52). A support spring (54) is fixedly connected between the two sets of hooks (53). A groove (55) matching the size of the insert (4) is opened on the back of the second support plate (52). Adhesive (56) is fixedly pasted on the inner side of the groove (55) and on the top and bottom of the first support plate (51).

2. A corrugated cardboard box with a multi-level limiting structure according to claim 1, characterized in that, The side plate (2) has a clamping groove (6) on one side near the top. A locking block (7) is movably inserted into the inside of the clamping groove (6). An elastic inner support rod (8) is fixedly connected to the side of the locking block (7).

3. A corrugated cardboard box with a multi-level limiting structure according to claim 1, characterized in that, A slider (9) is slidably engaged above the groove (3), and a first storage component (10) is fixedly connected above the slider (9); The first storage assembly (10) includes a storage plate (101) fixedly connected above the slider (9). A slot (102) is longitudinally opened on the upper surface of the storage plate (101). A partition (103) is movably engaged above the slot (102). A pressure groove (105) is opened above the partition (103). A baffle (106) is movably inserted above the pressure groove (105). A rubber sleeve (11) is fixedly connected to one end of the shelf (101) near the edge. A connecting rod (12) is fixedly inserted above the rubber sleeve (11). A second shelf assembly (13) is movably inserted above the connecting rod (12). The rubber sleeve (11) is also fixedly connected to one end of the second shelf assembly (13) near the edge.

4. A corrugated cardboard box with a multi-level limiting structure according to claim 1, characterized in that, The anti-bending component (5) is attached to the connection between the base plate (1) and the side plate (2). The side plates (2) are symmetrically distributed on both sides of the base plate (1). Two sets of anti-bending components (5) are attached between one set of side plates (2) and the base plate (1). The first support plate (51) and the second support plate (52) are both made of lightweight plastic material. The hook (53) and the support spring (54) are made of metal material.

5. A corrugated cardboard box with a multi-level limiting structure according to claim 2, characterized in that, The number of elastic inner support rods (8) is set in multiple sets, and the protrusion of the locking block (7) matches the size of the clamping groove (6).

6. A corrugated cardboard box with a multi-level limiting structure according to claim 3, characterized in that, The shelf (101) is snapped into the slot (102) by a pressure block. Multiple sets of pressure slots (105) are opened above the partition (103), and the baffle (106) can be inserted longitudinally into the pressure slot (105).

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