Waterproof carton with EPE foam
By setting up foam molds in the carton and using the design of sealing covers and support members, the existing cartons have solved the problem of insufficient water seepage and support strength when using EPE foam molds, achieving waterproofing inside the carton and higher packaging safety.
Patent Information
- Application Number
- CN202421072427.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-16
AI Technical Summary
When existing cartons are waterproofed when using EPE foam molds for waterproof packaging, the upper opening of the foam mold is not sealed or sealed tightly, resulting in water seepage in the carton. The support strength of the foam molds and cartons is low, which is easy to deform when under pressure, reducing packaging safety.
A carton with EPE foam waterproof is designed. By setting a foam mold in the main body of the carton and a sealing cover is set at its upper end opening, it is supported by using the bottom and four corner support members to ensure the stable fixation of the foam mold and sealing cover, and the waterproof effect inside the carton is achieved.
Through the sealing design of the sealing cover, the waterproof effect inside the carton is achieved, the support strength of the carton is enhanced, the safety of the packaging products is improved, and deformation problems caused by water seepage are avoided.
Smart Images

Figure CN222664208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cartons, in particular to a waterproof carton with EPE foam. Background Art
[0002] A carton is a container used for packaging, transporting and storing items. It is mainly made of cardboard. The structure of a carton usually includes at least three layers, namely two flat outer layers and a corrugated inner layer. This structural design can provide good strength and durability while remaining light. EPE foam, also known as pearl cotton, is a new type of environmentally friendly packaging material. It is composed of countless independent bubbles produced by physical foaming of low-density polyethylene resin to form a non-cross-linked closed-cell structure. This material has many advantages, such as water and moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity and toughness, as well as environmental protection and strong impact resistance.
[0003] When using cartons for product packaging, since paper is not waterproof, EPE foam is usually filled inside to improve its waterproof performance. In this case, a corresponding foam bearing mold can be set according to the shape of the product, and then it can be placed in the carton to achieve the purpose of waterproofing. However, the upper opening of the common foam mold is not sealed, or the seal is not tight, which leads to water seepage from the upper carton into the foam mold. The supporting strength of the foam mold and the carton is relatively low, and it is easy to deform when squeezed, resulting in reduced packaging safety. Utility Model Content
[0004] The utility model aims to solve the problems existing in the background technology and to provide a waterproof carton with EPE foam.
[0005] The technical solution of the utility model: a carton with EPE foam waterproofing, comprising a carton body and a foam mold, a box cover is arranged on the upper end of the carton body, the foam mold is arranged in the carton body, a sealing cover is arranged at the opening on the upper end of the foam mold, a bottom support is arranged on the bottom of the carton body, and the outer size of the bottom support is matched with the inner cavity size of the carton body, four corner support members are installed at the four corners of the upper end of the bottom support member, and the end support members are clamped on the upper ends of the four corner support members, the foam mold and the sealing cover are clamped between the bottom support member, the end support member and the four corner support members, and the height of the inner cavity of the carton body and the spacing between the bottom support member and the end support member are matched with each other.
[0006] Preferably, threaded columns are fixed to the bottom of the four-corner support members, threaded holes matching the threaded columns are opened at the upper end of the bottom support member, and fixing components are arranged between the upper ends of the four-corner support members and the end support members.
[0007] Preferably, the fixing assembly includes a fixing column and a fixing hole, the fixing column is fixed to the upper end of the four corner supports, the fixing hole is opened on the end support and is aligned with the fixing column, and the upper end of the fixing column is inserted into the fixing hole.
[0008] Preferably, the four corner supports are of right-angle structure, and the fixing columns are symmetrically distributed at the upper ends of the four corner supports, and telescopic grooves are provided at the four corners of the end supports and between the fixing holes, and a plug plate is slidably connected in the telescopic grooves.
[0009] Preferably, an adapting groove is provided on the periphery of the fixing column, the position of the adapting groove is aligned with the position of the telescopic groove, and the outer side of the plug plate is inserted into the adapting groove.
[0010] Preferably, the bottom of the foam mold abuts against the upper end of the bottom support member, and the four corners abut against the inner side walls of the four corner support members, and the upper end of the sealing cover abuts against the bottom of the end support member.
[0011] Compared with the prior art, the utility model has the following beneficial technical effects: a foam mold is arranged inside the carton body, and the upper end is sealed with a sealing cover to achieve a waterproof effect inside the carton, and a support is arranged between the carton body and the foam mold to support the entire carton, increase its supporting strength, and improve the safety of the packaged product. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the overall assembly structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the top view of the bottom support member of the utility model;
[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the end support member of the utility model from a top view;
[0015] Figure 4 This is a schematic diagram of the appearance structure of the four-corner support members of the utility model.
[0016] Figure numerals: 1. Carton body; 11. Box cover; 2. Bottom support; 21. Threaded hole; 3. Four corner support; 31. Threaded column; 32. Fixed column; 33. Adapter groove; 4. Foam mold; 41. Sealing cover; 5. End support; 51. Fixed hole; 52. Telescopic slot; 53. Insert plate. DETAILED DESCRIPTION
[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0018] Example
[0019] like Figure 1-4As shown, the utility model proposes a carton with EPE foam waterproofing, including a carton body 1 and a foam mold 4, a box cover 11 is arranged on the upper end of the carton body 1, the foam mold 4 is arranged in the carton body 1, a sealing cover 41 is arranged at the upper opening of the foam mold 4, a bottom support member 2 is arranged at the bottom of the carton body 1, and the outer size of the bottom support member 2 is adapted to the inner size of the carton body 1, four corner support members 3 are installed at the four corners of the upper end of the bottom support member 2, and the end support members 5 are clamped at the upper end of the four corner support members 3, and the foam mold 4 and the sealing cover 41 It is clamped between the bottom support 2, the end support 5 and the four corner support 3, the inner cavity height of the carton main body 1 and the distance between the bottom support 2 and the end support 5 match each other, a threaded column 31 is fixed to the bottom of the four corner support 3, and a threaded hole 21 matching the threaded column 31 is opened at the upper end of the bottom support 2, and a fixing component is arranged between the upper end of the four corner support 3 and the end support 5, the bottom of the foam mold 4 abuts against the upper end of the bottom support 2, and the four corners abut against the inner wall of the four corner support 3, and the upper end of the sealing cover 41 abuts against the bottom of the end support 5.
[0020] The fixing assembly includes a fixing column 32 and a fixing hole 51. The fixing column 32 is fixed to the upper end of the four-corner support member 3. The fixing hole 51 is provided on the end support member 5 and is aligned with the fixing column 32. The upper end of the fixing column 32 is inserted into the fixing hole 51. The four-corner support member 3 is a right-angle structure, and the fixing column 32 is symmetrically distributed at the upper end of the four-corner support member 3. Telescopic grooves 52 are provided at the four corners of the end support member 5 and between the fixing holes 51. An insert plate 53 is slidably connected in the telescopic groove 52. An adapter groove 33 is provided on the periphery of the fixing column 32. The position of the adapter groove 33 is aligned with the position of the telescopic groove 52, and the outer side of the insert plate 53 is inserted into the adapter groove 33.
[0021] In this embodiment, the threaded column 31 is first rotated and inserted into the threaded hole 21 so that the four corner support members 3 are fixed at the upper end of the bottom support member 2, and then the bottom support member 2 is placed in the carton body 1 so that the outer sides of the four corner support members 3 are against the four corners of the inner wall of the carton body 1, and then the foam mold 4 is placed between the four corner support members 3 so that it is against the inner wall of the four corner support members 3 to ensure the stability of the foam mold 4, and then the workpiece is placed in the foam mold 4, and the sealing cover 41 is covered on the upper end opening of the foam mold 4, and finally the end support member 5 is installed on the upper end of the four corner support members 3 so that the fixing column 32 is inserted into the fixing hole 51, and the end The bottom of the support member 5 is abutted against the upper end of the sealing cover 41. After the end support member 5 is fixed, the sealing cover 41 can be fixed to keep it sealed. During this process, after the fixing column 32 is inserted into the fixing hole 51, the position of its adapter groove 33 is aligned with the position in the telescopic groove 52. At this time, the plug plate 53 is inserted into the telescopic groove 52, so that the outer side of the plug plate 53 can enter the adapter groove 33, so that the fixing column 32 cannot be pulled out from the fixing hole 51, thereby completing the purpose of fixing. The foam mold 4 is used to achieve the purpose of sealing and waterproofing, and the support member can be used to increase or decrease the support strength of the four corners of the carton body 1 to reduce the risk of collapse due to pressure.
[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A carton with EPE foam waterproofing, comprising a carton body (1) and a foam mold (4), characterized in that: The carton body (1) is provided with a box cover (11) at the upper end, the foam mold (4) is arranged in the carton body (1), and a sealing cover (41) is provided at the upper opening of the foam mold (4). The bottom of the carton body (1) is provided with a bottom support member (2), and the outer size of the bottom support member (2) is adapted to the inner size of the carton body (1). Four corner support members (3) are installed at the four corners of the upper end of the bottom support member (2), and the upper ends of the four corner support members (3) are clamped with end support members (5). The foam mold (4) and the sealing cover (41) are clamped between the bottom support member (2), the end support member (5) and the four corner support members (3), and the inner height of the carton body (1) and the spacing between the bottom support member (2) and the end support member (5) are matched with each other.
2. A carton with EPE foam waterproofing according to claim 1, characterized in that: A threaded column (31) is fixed at the bottom of the four-corner support member (3), a threaded hole (21) matching the threaded column (31) is opened at the upper end of the bottom support member (2), and a fixing component is arranged between the upper end of the four-corner support member (3) and the end support member (5).
3. A carton with EPE foam waterproofing according to claim 2, characterized in that: The fixing assembly comprises a fixing column (32) and a fixing hole (51); the fixing column (32) is fixed to the upper end of the four-corner support member (3); the fixing hole (51) is opened on the end support member (5) and is aligned with the fixing column (32); the upper end of the fixing column (32) is inserted into the fixing hole (51).
4. A carton with EPE foam waterproofing according to claim 3, characterized in that: The four corner support members (3) are of right-angle structure, and the fixing columns (32) are symmetrically distributed at the upper ends of the four corner support members (3). Telescopic grooves (52) are provided at the four corners of the end support members (5) and between the fixing holes (51), and a plug plate (53) is slidably connected in the telescopic grooves (52).
5. A carton with EPE foam waterproofing according to claim 4, characterized in that: An adapting groove (33) is provided on the periphery of the fixing column (32), the position of the adapting groove (33) is aligned with the position of the telescopic groove (52), and the outer side of the plug plate (53) is inserted into the adapting groove (33).
6. A carton with EPE foam waterproofing according to claim 1, characterized in that: The bottom of the foam mold (4) abuts against the upper end of the bottom support member (2), and the four corners abut against the inner side walls of the four corner support members (3), and the upper end of the sealing cover (41) abuts against the bottom of the end support member (5).