Bottom supporting piece for packaging

Abstract

The bottom supporting piece for packaging comprises a paper tray, the upper surface of the paper tray is concave downwards and forms a lower boss, the upper end of the lower boss is open and forms a sleeve hole capable of allowing the end of a packaged product to be inserted, a first positioning face is formed on the outer wall of the lower boss, and a plurality of clamping grooves are formed in the first positioning face. The edge of the paper tray is provided with a reinforcing part, the reinforcing part is connected with the paper tray through a crease line and can be folded along the crease line, the reinforcing part is provided with a second positioning surface, and the second positioning surface is provided with a clamping block corresponding to the clamping groove; after folding, the clamping block is embedded into the clamping groove, the second positioning face is attached to the first positioning face, and the outer wall of the reinforcing part forms a packaging face. The bottom supporting piece for packaging is compact in structure, low in cost, easy to operate, high in structural strength, high in pressure resistance and capable of greatly improving packaging safety and reliability and remarkably reducing transportation loss.

Description

Technical Field

[0001] This utility model relates to a packaging, and more particularly to a bottom support for packaging. Background Technology

[0002] Household appliances (such as refrigerators, washing machines, and microwave ovens) have high requirements for the compressive strength, cushioning performance, and environmental adaptability of their packaging materials due to their large weight and complex structure (including glass panels, precision electronic components, and other easily damaged parts). Currently, paper trays are gradually replacing EPS foam plastics in household appliance packaging due to their environmental friendliness (degradability ≥90%) and lightweight (density 0.3-0.6 g / cm3).

[0003] The packaging involves placing paper trays at both ends of the product and then packaging it in a cardboard box. However, the paper tray linings used in the existing technology usually have the following problems: the single-layer paper tray has poor structural strength and a thin support surface, especially the side support is poor. It is very easy to cause the packaging to deform when there is a collision, and the impact force is directly applied to the internal product, which cannot play a good protective role for the internal product. Utility Model Content

[0004] Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a bottom support for packaging that is compact in structure, low in manufacturing cost, easy to use and high in strength.

[0006] Technical solutions to the problem

[0007] This utility model provides a bottom support for packaging, including a paper tray 1. The upper surface of the paper tray 1 is recessed to form a lower boss. The upper end of the lower boss is open and forms a sleeve hole 10 that can accommodate the end of the packaged product. The outer wall of the lower boss forms a first positioning surface 1a, and the first positioning surface 1a is provided with a plurality of slots 12. The edge of the paper tray 1 is provided with a reinforcing part 2. The reinforcing part 2 is connected to the paper tray 1 through a crease line 11 and can be folded along the crease line 11. The reinforcing part 2 is provided with a second positioning surface 2a, and the second positioning surface 2a is provided with a locking block 21 corresponding to the slots 12.

[0008] After folding, the card block 21 is embedded in the card slot 12, and the second positioning surface 2a is attached to the first positioning surface 1a, and the outer wall of the reinforcing part 2 forms the packaging surface 23a.

[0009] Furthermore, the paper tray 1 is rectangular.

[0010] Furthermore, the paper tray 1 is provided with the reinforcing part 2 on all four edges.

[0011] Furthermore, after folding, the packaging surface 23a is perpendicular to the plane where the paper tray 1 is located.

[0012] Furthermore, the first positioning surface 1a is an inclined surface.

[0013] Furthermore, the angle between the first positioning surface 1a and the top surface of the paper tray 1 is greater than or equal to 80 degrees and less than 90 degrees.

[0014] Furthermore, the card slots 12 are arranged sequentially along the length direction of the crease line 11.

[0015] Furthermore, after folding, the end of the reinforcing part 2 is flush with the end face of the lower boss.

[0016] Furthermore, the cross-sections of the slot 12 and the block 21 are trapezoidal.

[0017] Furthermore, the sidewall of the reinforcing part 2 is provided with a protrusion 23, and the end face of the protrusion 23 forms the packaging surface 23a.

[0018] Furthermore, the protrusion 23 and the locking block 21 are alternately arranged.

[0019] Furthermore, the edge of the reinforcing part 2 is bent to one side to form a reinforcing rib 24.

[0020] Furthermore, the slot 12 is provided with a support part 13, the top surface and side wall of the support part 13 forming a first support surface 131 and a second support surface 132 respectively. The card block 21 is provided with a groove, the side wall and bottom surface of the groove forming a third support surface 211 and a fourth support surface 212 respectively. After folding, the fourth support surface 212 is attached to the second support surface 132 and / or the third support surface 211 is attached to the first support surface 131.

[0021] Furthermore, the length of the crease line 11 is less than the length of the reinforcing part 2.

[0022] Furthermore, the bottom surface of the lower boss protrudes upwards, forming a main hole 10a and a secondary hole 10b located outside the main hole 10a in the sleeve hole 10. The depth of the secondary hole 10b is greater than the depth of the main hole 10a. A recessed hole 100 is formed at the lower end of the lower boss, and a support block 3 is embedded in the recessed hole 100. The end face of the support block 3 is flush with the end face of the lower boss.

[0023] Beneficial effects

[0024] This utility model relates to a bottom support component for packaging. It features a foldable reinforcing section, facilitating production and reducing manufacturing costs. During packaging, folding creates a stable lateral support structure, enhancing overall packaging stability. A positioning surface improves the fit between the reinforcing section and the paper pallet, ensuring a tight packaging structure and maintaining a vertical packaging surface for optimal results. A slot and locking block structure allows for interlocking after folding, improving overall structural stability and compression resistance, preventing deformation or damage during transport. Multiple support surfaces increase the contact area between the reinforcing section and the paper pallet, further enhancing the overall structure's compression resistance and ensuring product safety during transport, thus improving packaging safety and reliability. The beveled contact surface provides both horizontal and vertical bidirectional support, effectively preventing relative slippage of the reinforcing section and ensuring stability during transport. This utility model's bottom support component is compact, low-cost, easy to operate, high-strength, and highly compression-resistant, significantly improving packaging safety and reliability, reducing transportation losses, enhancing user experience, and showing broad market prospects. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the bottom support component for packaging according to this utility model;

[0026] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0027] Figure 3 This is a schematic diagram of the bottom support component for packaging of this utility model from another angle;

[0028] Figure 4 This is a schematic diagram of the installation of the support block for the bottom support component of the packaging according to this utility model;

[0029] Figure 5 This is a cross-sectional view of the bottom support component for packaging according to this utility model;

[0030] Figure 6 for Figure 5 Enlarged view of section B in the middle;

[0031] Figure 7 This is another sectional view of the bottom support component for packaging according to this utility model;

[0032] Figure 8 for Figure 7 Enlarged view of section C;

[0033] Figure 9 This is a schematic diagram of the folded state of the bottom support component for packaging according to this utility model. Detailed Implementation

[0034] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] See Figures 1-9 This utility model provides a bottom support for packaging, including a paper tray 1, which is rectangular and made of pulp. The upper surface of the paper tray 1 is concave to form a lower boss. The upper end of the lower boss is open to form a sleeve hole 10, which can accommodate the end of the packaged product to be inserted (embedded). The outer wall of the lower boss forms a first positioning surface 1a. In this embodiment, since the lower boss is also a rectangular structure, its four side walls form four first positioning surfaces 1a, and the four first positioning surfaces 1a are respectively close to the edge of the paper tray 1. A slot 12 is provided on the first positioning surface 1a. There are multiple slots 12, which are arranged sequentially along the length direction of the first positioning surface 1a.

[0036] A reinforcing part 2 is provided on the edge of the paper tray 1. In this embodiment, a reinforcing part 2 is provided on all four edges of the paper tray 1. The reinforcing part 2 is rectangular and is connected to the paper tray 1 through a crease line 11. It can be folded along the crease line 11. A second positioning surface 2a is provided on the reinforcing part 2. A locking block 21 is provided on the second positioning surface 2a. The locking block 21 corresponds one-to-one with the locking slot 12. After folding, the locking block 21 is embedded in the locking slot 12, and the second positioning surface 2a is attached to the first positioning surface 1a, that is, the two are in contact. It can withstand the force in the horizontal direction. At the same time, the outer wall of the reinforcing part 2 forms a packaging surface 23a, which can contact the inner wall of the packaging box to achieve radial positioning. In this embodiment, the packaging surface 23a in the folded state is perpendicular to the plane where the paper tray 1 is located.

[0037] To enhance support, the first positioning surface 1a is an inclined surface. In this embodiment, the angle between the first positioning surface 1a and the top surface of the paper tray 1 is greater than or equal to 80 degrees and less than 90 degrees, preferably 85°±2°. This allows the contact surface between the first positioning surface 1a and the second positioning surface 2a to be inclined to the packaging surface 23a. That is, through the inclined contact, the direction of force can be changed, improving its bearing capacity, especially the lateral bearing capacity, and achieving better protection.

[0038] At the same time, after folding, the end of the long side of the reinforcing part 2 is flush with the end face of the lower boss. During packaging, this prevents the gap between this part and the packaging box from causing deformation, thus improving the support and protection and preventing packaging deformation.

[0039] The reinforcing part is rectangular in shape, with its edge bent to one side to form a reinforcing rib 24. In this embodiment, it is bent at 90 degrees to the second positioning surface 2a, which can improve the structural strength of the reinforcing part 2, improve the compressive strength, and enhance the resistance to deformation.

[0040] To increase the contact area and support force, in this application, the cross-sections of the card slot 12 and the card block 21 are trapezoidal, preferably isosceles trapezoidal, that is, the inner wall of the card slot 12 and the outer wall of the card block 21 are inclined surfaces. When folded, the outer wall of the card block 21 is in close contact with the inner wall of the card slot 12. Since it is an inclined surface, it can withstand the force in the horizontal direction. That is, when the packaging surface is subjected to force, the card block 21 and the card slot 12 can also withstand it, which increases the overall structural strength and support force of the support member and achieves better protection.

[0041] One or more strip-shaped grooves are provided on the first positioning surface 1a to form a reinforcing structure. The strip-shaped grooves are arranged vertically, so that the first positioning surface 1a forms a concave-convex structure, which can improve its structural strength and compressive strength.

[0042] A protrusion 23 is provided on the side wall of the reinforcing part 2. The protrusion 23 is located on the side opposite to the second positioning surface. The end face of the protrusion 23 forms the packaging surface 23a. In this application, there are multiple protrusions 23, which are alternately arranged with the card block 21, so that the reinforcing part 2 as a whole forms a concave-convex structure.

[0043] In order to avoid interference between two adjacent reinforcing parts during folding and thus affect the packaging, in this application, the length of the crease line 11 is less than the length of the reinforcing part 2, so as to avoid interference between the ends of two adjacent reinforcing parts and thus affect the folding effect.

[0044] A support portion 13 is provided in the slot 12. The two sides of the support portion 13 are connected to the inner wall of the slot 12 to form an integral whole. The top surface of the support portion 13 forms a first support surface 131, and the side wall of the support portion 13 forms a second support surface 132, which faces the reinforcing part. At the same time, a groove is provided on the card block 21. The groove is located at one corner of the card block 21. The side wall of the groove (when not folded) forms a third support surface 211, which faces the paper tray 1. The bottom surface of the groove forms a fourth support surface 212. After folding, at least one pair of the fourth support surface 212 and the second support surface 132, and the third support surface 211 and the first support surface 131, are in close contact. This can further increase the contact area between the reinforcing part 2 and the paper tray 1, and improve the structural strength and compressive strength after folding.

[0045] In another embodiment, the bottom surface of the lower boss protrudes upwards, causing the sleeve hole 10 to form a main hole 10a and a secondary hole 10b located outside the main hole 10a. The depth of the secondary hole 10b is greater than the depth of the main hole 10a. This is used for products with support legs at the bottom. During packaging, the support legs are located inside the secondary hole 10b, and the bottom surface of the product is attached to the bottom surface of the main hole 10a. Since the paper tray 1 is made entirely of paper pulp and has a board structure, a recessed hole 100 is formed at the lower end of the lower boss. The shape of the recessed hole 100 is the same as the shape of the main hole 10a. A support block 3 is embedded in the hole 100. The cross-sectional shape of the support block 3 is basically the same as that of the recessed hole 100. It can be inserted into the recessed hole. After installation, the end face (i.e., the bottom face) of the support block 3 is flush with the end face (i.e., the bottom face) of the lower boss. This can increase the end face area of ​​the paper tray, thereby increasing the compressive strength and avoiding damage to the tray under stress. This greatly improves the overall structural strength and compressive strength, thus better protecting the internal products. The support block 3 is made of foam or honeycomb cardboard, which is lightweight and low in cost.

[0046] This utility model relates to a bottom support component for packaging. It features a foldable reinforcing section, facilitating production and reducing manufacturing costs. During packaging, folding creates a stable lateral support structure, enhancing overall packaging stability. A positioning surface improves the fit between the reinforcing section and the paper pallet, ensuring a tight packaging structure and maintaining a vertical packaging surface for optimal results. A slot and locking block structure allows for interlocking after folding, improving overall structural stability and compression resistance, preventing deformation or damage during transport. Multiple support surfaces increase the contact area between the reinforcing section and the paper pallet, further enhancing the overall structure's compression resistance and ensuring product safety during transport, thus improving packaging safety and reliability. The beveled contact surface provides both horizontal and vertical bidirectional support, effectively preventing relative slippage of the reinforcing section and ensuring stability during transport. This utility model's bottom support component is compact, low-cost, easy to operate, high-strength, and highly compression-resistant, significantly improving packaging safety and reliability, reducing transportation losses, enhancing user experience, and showing broad market prospects.

[0047] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A bottom support for packaging, characterized by: The paper tray has a concave upper surface and a lower protrusion, the upper end of the lower protrusion is open and forms a sleeve hole into which the end of a packaged product can be inserted, the outer wall of the lower protrusion forms a first positioning surface, and a plurality of clamping grooves are arranged on the first positioning surface; the edge of the paper tray is provided with a reinforcing part, the reinforcing part is connected to the paper tray through a crease line and can be folded along the crease line, a second positioning surface is arranged on the reinforcing part, and clamping blocks corresponding to the clamping grooves are arranged on the second positioning surface; After folding, the clamping blocks are embedded in the clamping grooves, and the second positioning surface is attached to the first positioning surface, and the outer wall of the reinforcing part forms a packaging surface.

2. The bottom support for packaging according to claim 1, characterized in that: The paper tray is rectangular, and the reinforcing part is arranged on each of the four edges of the paper tray.

3. The bottom support for packaging according to claim 1, characterized in that: After folding, the packaging surface is perpendicular to the plane on which the paper tray is located.

4. The bottom support for packaging according to claim 1, characterized in that: The first positioning surface is an inclined surface.

5. The bottom support for packaging according to claim 1, characterized in that: After folding, the end of the reinforcing part is flush with the end surface of the lower protrusion.

6. The bottom support for packaging according to claim 1, characterized in that: The cross section of the clamping groove and the clamping block is trapezoidal.

7. The bottom support for packaging according to claim 1, characterized in that: The side wall of the reinforcing part is provided with a protrusion, and the end surface of the protrusion forms the packaging surface.

8. The bottom support for packaging according to claim 1, characterized in that: The edge of the reinforcing part is bent to one side and forms a reinforcing rib.

9. The bottom support for packaging according to claim 1, characterized in that: A support part is arranged in the clamping groove, the top surface and the side wall of the support part form a first support surface and a second support surface respectively, a recess is arranged on the clamping block, and the side wall and the bottom surface of the recess form a third support surface and a fourth support surface respectively, and after folding, the fourth support surface is attached to the second support surface and / or the third support surface is attached to the first support surface.

10. The bottom support for packaging according to claim 1, characterized in that: The bottom surface of the lower protrusion is convex upward and forms a main hole and a secondary hole outside the main hole, the depth of the secondary hole is greater than the depth of the main hole; the lower end of the lower protrusion forms a recess, a support block is embedded in the recess, and the end surface of the support block is flush with the end surface of the lower protrusion.

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