Combined wooden box structure

The modular wooden crate structure design solves the problems of large volume during empty crate transportation and mold growth on goods, enabling rapid assembly and disassembly, low-cost transportation, and efficient drainage, while also improving the connection strength and service life of the crates.

CN224211430UActive Publication Date: 2026-05-08DEYANG LIZHUO INTELLIGENT PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEYANG LIZHUO INTELLIGENT PACKAGING CO LTD
Filing Date
2025-04-22
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing wooden crate designs result in high volume occupancy rates during empty crate transport, increasing transportation costs, and the lack of internal drainage leads to a high rate of mold growth on goods.

Method used

It adopts a modular structural design, including a base plate, side plates and a top plate. The base plate is equipped with a drainage system, and the side plates are connected by guide grooves and fixing devices. Combined with plugs and screws, it can be quickly disassembled and stably connected, and is equipped with drainage channels and sealing plugs for waterproofing and drainage.

Benefits of technology

It significantly reduces transportation costs, improves transportation efficiency, reduces empty container volume, prevents goods from becoming moldy, and enhances connection strength and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combined wooden case structure in the technical field of transport cases, which comprises a bottom plate, side plates and a top plate, a drainage system is arranged inside the bottom plate, guide grooves used for connecting the side plates are respectively arranged on four sides of the upper end of the bottom plate, the bottom plate is further connected with inserting blocks used for connecting the side plates, and the inserting blocks are connected with the top plate. The four sets of side plates are installed at the upper end of the bottom plate, fixing devices used for being connected with guide grooves are fixedly connected to the middles of the lower ends of the side plates, and the top plate is connected to the upper ends of the side plates. The drainage system comprises drainage ports, drainage channels, drainage channels and sealing plugs, the drainage ports are vertically formed in the lower ends of the guide grooves, the sealing plugs are inserted into the drainage ports from the bottom, the drainage channels are arranged in at least two sets and are connected between the drainage ports, and the drainage channels are vertically connected between the upper drainage channel and the lower drainage channel. And rapid assembly is facilitated. The waterproof performance is good. The connection strength is high and the stability is good. And storage and repeated use in the transportation department are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of transport boxes, specifically a modular wooden box structure. Background Technology

[0002] Wooden crates are rectangular packaging containers made of wood, bamboo, or wood-based composites. They are among the oldest and most important types of transport packaging. Their simple construction, high strength, availability of locally sourced materials, durability, elasticity, ability to withstand impact and vibration, and relatively low cost make them crucial in the packaging world. Wooden crates are suitable for domestic and export packaging of various goods and products, offering an economical option. While wooden crates are typically secured using external fasteners, the integrated design of some existing crates results in an empty crate volume occupancy rate as high as 85% (per 1m²). 3 The cost of transporting goods increases by 40% (according to GB / T 7284-2016 standard data); some existing wooden crates do not have drainage function, resulting in a mold rate of more than 15% (actual measurement in a sea transport environment).

[0003] Therefore, we have introduced a modular wooden box structure. Utility Model Content

[0004] The purpose of this utility model is to provide a modular wooden box structure that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular wooden box structure, including a bottom plate, side plates, and a top plate. The bottom plate has an internal drainage system. The upper end of the bottom plate has guide grooves on its four sides for connecting the side plates. The bottom plate is also connected to inserts for connecting the side plates. The side plates are arranged in four groups and installed on the upper end of the bottom plate. The lower end of the side plates is fixedly connected to a fixing device for connecting the guide grooves. The top plate is connected to the upper end of the side plates.

[0006] As a further optimization of this technical solution, the drainage system includes a drain outlet, a drainage channel, a drainage channel, and a sealing plug. The drain outlet is vertically arranged at the lower end of the guide groove, and the sealing plug is inserted into the drain outlet from the bottom. The drainage channel is provided in at least two sets and is respectively connected between each set of drain outlets. The drainage channel is vertically connected between the upper and lower drainage channels. The drainage system is used to waterproof and drain the inside of the wooden box. A screw hole is provided on one side of the guide groove.

[0007] As a further optimization of this technical solution, the fixing device includes a guide block and a screw. The upper end of the guide block is embedded and fixedly connected to the lower middle part of the side plate. The screw passes through the guide block and is connected to the screw hole. Several sets of screw holes are interconnected at one end.

[0008] As a further optimization of this technical solution, the plug block also includes a plug rod fixedly connected to its upper end, and the length and width of the plug rod are smaller than the length and width of the plug block.

[0009] As a further optimization of this technical solution, slots are provided on both sides of the lower end of the side plate, and the slots also include a through groove at the upper end. The plug is inserted into the slot, the plug rod is inserted into the through groove, the outer side of the slot penetrates the outer wall of the side plate, and the upper end of the side plate is provided with a hole.

[0010] As a further optimization of this technical solution, the four corners of the lower end of the top plate are respectively connected to the insertion posts, which are inserted into the insertion holes at the upper end of the side plate.

[0011] Compared with existing technologies, the modular wooden crate structure of this utility model has the following advantages: 1. Revolutionary improvement in transportation efficiency: The volume is reduced by 70% after disassembly, and the loading capacity of an empty 40-foot container increases from 100 pieces to 300 pieces; the assembly time is less than 3 minutes (traditional wooden crates require 20 minutes), and the labor cost is reduced by 85%. 2. Breakthrough in waterproof performance: The three-dimensional drainage network shortens the internal drying time to 30 minutes (traditional wooden crates > 2 hours); the sealing plug (15) can withstand immersion in 1.2m water pressure for 72 hours without leakage (SGS certified). 3. Optimized connection strength and lifespan: The pre-tightening force of the screw (25) makes the shear strength of the side plate ≥ 8MPa (EN 14354 standard requires ≥ 5MPa); the insert (11) is made of glass fiber reinforced nylon, with a wear resistance of > 10,000 times (ASTM D4060 test). Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0014] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the side plate of this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the base plate of this utility model.

[0017] In the diagram: 1. Base plate; 11. Insert block; 111. Insert rod; 13. Guide groove; 15. Sealing plug; 16. Drain outlet; 17. Drainage channel; 18. Drainage channel; 19. Screw hole; 2. Side plate; 22. Insert hole; 23. Slot; 231. Through groove; 24. Guide block; 25. Screw; 3. Top plate; 31. Insert post. Detailed Implementation

[0018] 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.

[0019] Example 1:

[0020] Please see Figures 1 to 5 This embodiment provides a technical solution: a combined wooden box structure, including a bottom plate 1, side plates 2 and a top plate 3. The bottom plate 1 is provided with a drainage system inside. The four sides of the upper end of the bottom plate 1 are respectively provided with guide grooves 13 for connecting the side plates 2. The bottom plate 1 is also connected with inserts 11 for connecting the side plates 2. The side plates 2 are arranged in four groups and are respectively installed on the upper end of the bottom plate 1. The lower middle part of the side plate 2 is fixedly connected with a fixing device for connecting the guide grooves 13. The top plate 3 is connected to the upper end of the side plates 2.

[0021] More specifically, the base plate 1, side plates 2, and top plate 3 together form a combined wooden box structure, which is easy to disassemble and install, thus facilitating transportation, storage, and multiple uses. The drainage system can discharge internal moisture and also seal the interior. The fixing device, together with the guide groove 13, facilitates quick installation and ensures good stability during use after installation.

[0022] In specific implementation, the drainage system includes a drain outlet 16, a drainage channel 17, a drainage channel 18, and a sealing plug 15. The drain outlet 16 is vertically arranged at the lower end of the guide groove 13, and the sealing plug 15 is inserted into the drain outlet 16 from below. The drainage channel 17 is provided in at least two sets and is respectively connected between each set of drain outlets 16. The drainage channel 18 is vertically connected between the upper and lower drainage channels 17. The drainage system is used to waterproof and drain the interior of the wooden box. A screw hole 19 is provided on one side of the guide groove 13.

[0023] More specifically, when the drain plug 15 is opened, the water inside the modular wooden box enters the drain outlet 16 through the guide groove 13 and then enters the drain channel 17. It also flows down through the drainage channel 18 in between, and finally is discharged through the drain outlet 16. The sealing plug 15 can be inserted into the drain outlet 16 to seal it, so that water outside the upper bottom plate 1 will not enter the interior of the modular wooden box.

[0024] In specific implementation, the fixing device includes a guide block 24 and a screw 25. The upper end of the guide block 24 is embedded and fixedly connected to the lower middle part of the side plate 2. The screw 25 passes through the guide block 24 and connects to the screw hole 19. Several sets of screw holes 19 are interconnected at one end. The guide block 24 is also provided with a groove for placing desiccant inside to dry the inside of the wooden box.

[0025] More specifically, rotating the screw 25 can fix the guide block 24 in the guide groove 13. The guide block 24 can quickly fix the side plate during installation. The screw holes 19 are interconnected to allow for air and moisture desiccation.

[0026] In a specific implementation, the insert block 11 also includes an insert rod 111 fixedly connected to its upper end, and the length and width of the insert rod 111 are smaller than the length and width of the insert block 11.

[0027] More specifically, it enhances stability during installation to prevent shaking.

[0028] In a specific implementation, slots 23 are provided on both sides of the lower end of the side plate 2. The slot 23 also includes a through groove 231 at its upper end. The plug 11 is inserted into the slot 23, and the plug rod 111 is inserted into the through groove 231. The outer side of the slot 23 penetrates the outer wall of the side plate 2. The upper end of the side plate 2 is also provided with a plug hole 22.

[0029] More specifically, it enhances the convenience and speed of installation, and also provides stability to prevent shaking.

[0030] In specific implementation, the four corners of the lower end of the top plate 3 are respectively connected to the insertion post 31, and the insertion post 31 is inserted into the insertion hole 22 at the upper end of the side plate 2.

[0031] More specifically, this makes the top plate 3 easier to install and fix, and enhances the stability after fixing.

[0032] This technical solution enables rapid disassembly and dynamic reinforcement, and is suitable for cross-border e-commerce, precision instrument transportation and other fields, reducing the overall cost per box by 55%.

[0033] Modular quick-connect structure: The base plate 1 has T-shaped guide grooves 13 on all four sides with a depth of 15mm. The guide block 24 at the bottom of the side plate 2 is embedded in the guide groove and is fixed by screwing the screw 25 into the connecting screw hole 19. The insert block 11 and the slot 23 are interference fit with a tolerance of ±0.5mm. The insert rod 111 is inserted into the through slot 231 to form a double anti-shake structure.

[0034] Integrated drainage system: Drainage channels 17 are distributed in a grid pattern inside the base plate 1, ensuring high drainage efficiency; drainage channels 18 vertically connect the upper and lower drainage channels, forming a three-dimensional flow guiding network to prevent water accumulation; sealing plugs 15 are made of silicone with a compression rate of 30% and a sealing pressure ≥50kPa (tested according to GB / T 18144-2023). Multifunctional fixing device: Screw 25 has an M10 fine thread with a screw depth of 20mm, providing an axial preload of 800N; the connecting screw hole 19 also serves as an exhaust port, achieving an airflow velocity of 0.5m / s when the humidity difference is >30%, thus realizing passive dehumidification.

[0035] Top plate quick installation design: The insertion post 31 has a diameter of 25mm and a clearance fit tolerance of H7 / g6 with the insertion hole 22. It automatically aligns after insertion, and the installation time is less than 10 seconds.

[0036] Data support:

[0037] Drainage efficiency data are based on fluid simulation (ANSYS Fluent) and a 50 mm / h rainfall simulation;

[0038] The connection strength test was completed by a CNAS-accredited laboratory (report number LAB-2023-0715);

[0039] Transportation cost calculations are based on the DHL Global Logistics Database.

[0040] In addition, in another embodiment, the device also has intelligent expansion capabilities: the screw hole 19 can integrate a temperature and humidity sensor to monitor the status of the goods in real time; the guide groove 13 is compatible with power tool drives to achieve automated assembly.

[0041] Working principle: Align the guide block 24 at the bottom of the side plate 2 with the guide groove 13 of the bottom plate, and push the side plate to the limit; rotate the screw 25 to lock the side plate, and the thread preload ensures that the verticality error of the side plate is <0.3°; insert the post 31 of the top plate 3 into the upper insertion hole 22 of the side plate to form a closed structure. Drainage system operation: Internal water enters the drain outlet 16 through the guide groove 13, and is collected at the edge of the bottom plate through the drainage channel 17 and the drainage channel 18; when the sealing plug 15 is pulled out, the external water pressure difference drives the drainage, and after closing, it achieves IP65 waterproof rating EN 60529 standard. Dynamic stabilization mechanism: The interference fit between the insert block 11 and the slot 23 absorbs 80% of the vibration energy; the connecting screw hole 19 balances the air pressure inside and outside the box to prevent the wood board from deforming due to temperature changes.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular wooden box structure, comprising a bottom plate (1), side plates (2) and a top plate (3), characterized in that: The base plate (1) is equipped with a drainage system inside. The upper end of the base plate (1) is provided with guide grooves (13) for connecting the side plates (2) on the four sides respectively. The base plate (1) is also connected with a plug (11) for connecting the side plates (2). The side plates (2) are arranged in four groups and installed on the upper end of the base plate (1). The lower end of the side plates (2) is fixedly connected with a fixing device for connecting the guide grooves (13). The top plate (3) is connected to the upper end of the side plates (2).

2. The modular wooden box structure according to claim 1, characterized in that: The drainage system includes a drain outlet (16), a drainage channel (17), a drainage channel (18), and a sealing plug (15). The drain outlet (16) is vertically arranged at the lower end of the guide groove (13). The sealing plug (15) is inserted into the drain outlet (16) from below. The drainage channel (17) is arranged in at least two sets and connected between each set of drain outlets (16). The drainage channel (18) is vertically connected between the upper and lower drainage channels (17). The drainage system is used to waterproof and drain the interior of the wooden box. A screw hole (19) is provided on one side of the guide groove (13).

3. The modular wooden box structure according to claim 2, characterized in that: The fixing device includes a guide block (24) and a screw (25). The upper end of the guide block (24) is embedded and fixedly connected to the lower middle part of the side plate (2). The screw (25) passes through the guide block (24) and is connected to the screw hole (19). Several sets of screw holes (19) are interconnected at one end.

4. The modular wooden box structure according to claim 3, characterized in that: The insert (11) also includes a rod (111) fixedly connected to its upper end, and the length and width of the rod (111) are smaller than the length and width of the insert (11).

5. A modular wooden box structure according to claim 4, characterized in that: The lower ends of the side plate (2) are provided with slots (23) on both sides respectively. The slots (23) also include a through groove (231) at their upper ends. The plug (11) is inserted into the slot (23), and the plug rod (111) is inserted into the through groove (231). The outer side of the slot (23) penetrates the outer wall of the side plate (2). The upper end of the side plate (2) is also provided with a plug hole (22).

6. The modular wooden box structure according to claim 5, characterized in that: The top plate (3) has four corners connected to insert posts (31), which are inserted into the holes (22) at the top of the side plate (2).