Leakage-proof reinforced packaging box

By coating waterproof coating, setting the connection module and inserting mechanism on the corrugated packaging carton, the problem of decreased strength in the traditional carton when the water or internal liquid leaks, and achieve better waterproof and leakage resistance and structural stability. Essence

CN119370434AInactive Publication Date: 2025-01-28ZHEJIANG SANJIA PACKING CO LTD
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Patent Information

Application Number
CN202411965774.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-01-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When traditional corrugated packaging cartons encounter water or internal liquid leakage, the material absorbs water, resulting in reduced strength, loss of packaging function, and lack of effective separation and fixing structure, which increases the risk of product leakage.

Method used

A leak -proof enhanced packaging box is designed, the inner and outer side of the box and the lid of the box, the waterproof coating, the four corners of the box are set to set the connection module. Fixed the U -shaped airbags, and the first sealing mechanism is set in the lid.

Benefits of technology

A significant improvement of waterproof leak -proof performance, enhancing the structural stability and applicability of the box, realizing the interior separation and fixing of the box, improving the convenience and reliability of operation, reducing the damage of the packaging box in transportation and storage procedures risk.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of product packaging, in particular to a leakage-proof reinforced packaging box which comprises a box body and a box cover, the box body comprises a bottom plate and side plates, the box body is formed by folding the bottom plate and the side plates, and the inner side and the outer side of the box body and the inner side and the outer side of the box cover are each coated with a waterproof coating. The inner sides and the outer sides of the carton body and the carton cover are coated with the waterproof coatings, so that water is effectively prevented from permeating from the surface of the carton, and the waterproof performance of the carton body is enhanced. Meanwhile, the sealing performance between the carton body and the carton cover is further improved through a sealing strip in the connecting module and a sealing gasket in the first sealing mechanism, leakage of water and internal liquid is effectively prevented, and therefore the structural strength and the packaging function of the carton under the water condition are guaranteed.
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Description

Technical Field

[0001] The invention relates to the technical field of product packaging, in particular to a leak-proof reinforced packaging box. Background Art

[0002] As the most widely used packaging product, cartons come in many varieties. Among them, corrugated packaging cartons occupy an important position in the packaging industry due to their low cost, light weight, easy processing, high strength, and convenient storage and handling. However, traditional corrugated packaging cartons have obvious shortcomings in terms of waterproofing and leakproofing. When the carton is wetted by rain or the internal liquid leaks, the structural strength of the carton will drop significantly, and even lose its original packaging function. Especially for cartons containing liquid items, once the internal liquid leaks during transportation or movement, traditional cartons often cannot effectively prevent the liquid from leaking, which will not only cause economic losses, but also make the leaked liquid difficult to clean up, affecting the cleanliness of the environment.

[0003] Most of the corrugated packaging cartons on the market are not waterproofed on both the inside and outside, which results in the carton material absorbing water and losing its packaging function when it comes into contact with water or when the liquid inside leaks. In addition, the carton lacks effective partitions and fixed structures, and the items are prone to shaking and colliding inside the carton, increasing the risk of product leakage. Once a leak occurs, due to the water absorption of the carton material itself, the leaked liquid will quickly spread inside the carton, causing greater losses. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a leakproof reinforced packaging box to solve the problem that the existing packaging cartons are not waterproofed and easily absorb water when suddenly encountering water, resulting in reduced strength.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a leakproof reinforced packaging box, comprising a box body and a box cover, the box body comprising a bottom plate and a side plate, and the box body is formed by folding the bottom plate and the side plate, the inner and outer sides of the box body and the box cover are coated with a waterproof coating, and the four corners of the box body are provided with a connection module, the box body is connected with a partition through a plug-in mechanism, and the side wall fixing sleeve of the partition is provided with a U-shaped airbag, and the box cover is provided with a first sealing mechanism; The connecting module includes a first L-shaped plate, and the top of the first L-shaped plate is fixedly connected to a connecting plate, the bottom of the connecting plate is connected to a second L-shaped plate via a first movable mechanism, the partition is located between the first L-shaped plate and the second L-shaped plate, and the second L-shaped plate is provided with a second sealing mechanism near the side wall of the partition.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Further, the first moving mechanism includes a fixed block fixedly connected to the bottom of the connecting plate, and the side wall of the fixed block is fixedly connected with a first sleeve rod, the side wall of the first sleeve rod is sleeved with a first sleeve, and the other end of the first sleeve is fixedly connected with the first moving block, the side wall of the first moving block is fixedly connected with a threaded tube, and a threaded rod is threadedly connected to the inner thread of the threaded tube, the other end of the threaded rod is rotatably connected to the side wall of the fixed block, and the other end of the threaded rod is fixedly connected to a rocker, the side wall of the first moving block is connected to the connecting block through a telescopic mechanism, and the connecting block is fixed to the side wall of the second L-shaped plate.

[0008] The beneficial effect of adopting the above further scheme is that when in use, the bottom plate and the side plates are first folded into a box body, then the connecting modules are sequentially mounted on the four corners of the box body, and the first L-shaped plate is located on the outside of the box body, and the second L-shaped plate is located on the inside of the box body, then the rocker is turned, and the rotation of the rocker drives the rotation of the threaded rod, thereby driving the first movable block to move in a direction away from the fixed block, and driving the connecting block to move through the telescopic mechanism, thereby driving the second L-shaped plate to move in a direction close to the first L-shaped plate, and making the second L-shaped plate abut against the inner wall of the box body, thereby facilitating the connection and fixation of the side plates of the box body.

[0009] Furthermore, the telescopic mechanism includes two symmetrically arranged second rods fixedly connected to the side wall of the first moving block, and the side wall of the second rod is sleeved with a second sleeve, the other end of the second sleeve is fixed to the side wall of the connecting block, and the side wall of each second sleeve is sleeved with a first spring.

[0010] The beneficial effect of adopting the above further solution is that when the second L-shaped plate abuts against the inner wall of the box body, the first spring is gradually compressed, and it can be applied to boxes of different thicknesses, and has better applicability.

[0011] Furthermore, the first sealing mechanism comprises a sealing gasket in an annular shape fixedly inserted on the inner side wall of the box cover, and avoidance grooves are formed at the four corners of the sealing gasket.

[0012] The beneficial effect of adopting the above further solution is that the sealing strip is abutted against the inner wall of the box body to form a sealing effect, thereby making the box body more waterproof and leak-proof.

[0013] Furthermore, the plug-in mechanism includes multiple groups of U-shaped plates arranged in an array, and each group of U-shaped plates has two plates. The partition is inserted in the U-shaped plate, and the U-shaped plate is fixed to the inner wall of the box body. The bottom of the box body is fixedly connected with multiple groups of symmetrically arranged ribs, and each group of ribs has two plates. The two ribs in each group are located on both sides of the partition, and a clamping mechanism is provided between the partition and the U-shaped plate.

[0014] The beneficial effect of adopting the above further scheme is that when in use, the insertion position of the partition is first selected according to the size of the items to be placed. When inserting, the partition is inserted into the U-shaped plate. When the airbag abuts against the bottom of the box, the gas in the airbag can be squeezed, and the airbag can be abutted against the bottom and side walls of the box to form a sealing effect.

[0015] Furthermore, the clamping mechanism includes a clamping groove opened on the side wall of each U-shaped plate, and the side wall of the partition is connected to the second moving block through the second moving mechanism, and the side wall of the second moving block is fixedly connected to the clamping block.

[0016] The beneficial effect of adopting the above further solution is that the second moving block is driven to move by the second moving mechanism, and the card block is inserted into the card slot to form a card connection effect.

[0017] Furthermore, the moving mechanism includes two symmetrically arranged fixed covers fixedly connected to the side walls of each partition, and the second moving block is inserted in the fixed covers, the bottom of each fixed cover is fixedly connected with an air pipe, and the other end of the air pipe is fixedly inserted in the side wall of the airbag, and the top of the fixed cover is provided with a limiting mechanism for limiting the second moving block, and the top of the second moving block is fixedly connected with a push rod.

[0018] The beneficial effect of adopting the above further scheme is that when the airbag is squeezed, the internal air pressure increases, thereby entering the fixed cover through the air pipe and pushing the second movable block to move. When the second movable block moves, it drives the card block to be inserted into the card slot, forming a card connection effect.

[0019] Furthermore, the limiting mechanism includes a first limiting hole and a second limiting hole opened on the top of the second moving block, and the top of the fixed cover is connected to the third moving block through a reset mechanism, and the bottom of the third moving block is fixedly connected to the limiting rod.

[0020] The beneficial effect of adopting the above further scheme is that by pushing the third moving block upward, the limiting rod is withdrawn from the second limiting hole and the third moving block is released. At this time, the third moving block can move downward under the action of the reset mechanism and insert the limiting rod into the first limiting hole for limiting, which is more stable and reliable.

[0021] Furthermore, the reset mechanism includes two symmetrically arranged T-shaped guide rods fixedly connected to the top of the fixed cover, the third moving block is sleeved on the side walls of the T-shaped guide rods, and the side walls of each T-shaped guide rod are sleeved with a second spring.

[0022] The beneficial effect of adopting the above further solution is that it plays a guiding and resetting role in the movement of the third moving block.

[0023] Furthermore, the second sealing mechanism includes two symmetrically arranged installation grooves opened on the side wall of the second L-shaped plate, and a sealing strip is fixedly inserted in each installation groove.

[0024] The beneficial effect of adopting the above further solution is that the sealing effect between the box cover and the box body is improved, thereby achieving better waterproof and leak-proof effects.

[0025] The beneficial effects of the present invention are: 1) Significantly improve the waterproof and leakproof performance: By applying a waterproof coating on the inside and outside of the box body and the box cover, moisture is effectively prevented from penetrating from the box surface, enhancing the waterproof performance of the box. At the same time, the sealing strip in the connection module and the sealing gasket in the first sealing mechanism further improve the sealing between the box body and the box cover, effectively preventing the leakage of moisture and internal liquid, thereby ensuring the structural strength and packaging function of the box when exposed to water.

[0026] 2) Enhance the structural stability and applicability of the box: The design of the connection module effectively reinforces the four corners of the box, improving the overall structural stability of the box. By turning the rocker, the tightness between the second L-shaped plate and the inner wall of the box can be easily adjusted to adapt to boxes of different thicknesses, enhancing the applicability and flexibility of the box.

[0027] 3) Achieve internal partition and fixation of the box: The design of the plug-in mechanism and the snap-in mechanism allows the partition to be easily inserted into the box and adjusted as needed. When the airbag contacts the bottom of the box, the gas inside is squeezed, so that the airbag fits tightly against the bottom and side walls of the box, forming a sealing effect. At the same time, the snap-in mechanism ensures the stable position of the partition in the box, reduces the shaking amplitude and collision of the items, and improves the leak-proof performance of the box and the protection of the items.

[0028] 4) Improve operational convenience and reliability: By pushing the third moving block, the card block and the card slot can be easily connected and separated, thereby simplifying the installation and removal process of the partition. At the same time, the design of the limit mechanism and the reset mechanism ensures the stability and reliability of the card block during the connection process, avoiding damage or leakage of the box due to improper operation. Optimize the practicality and economy of the box: Through a series of innovative designs, this technical solution not only improves the waterproof and leak-proof performance and structural stability of the packaging box, but also reduces the risk of damage to the packaging box during transportation and storage, thereby extending the service life of the box. At the same time, because the applicability and flexibility of the packaging box have been enhanced, it can meet the packaging needs of items of different sizes and shapes, and improve the practicality and economy of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the unfolded state of the box body in the present invention; Figure 3 It is a schematic diagram of the overall structure of the box cover in the present invention; Figure 4 It is a partial cross-sectional structural schematic diagram of the box body in the present invention; Figure 5 It is a schematic diagram of the overall structure of the connection module in the present invention; Figure 6 for Figure 4 A schematic diagram of the enlarged structure at A in the middle; Figure 7 for Figure 5 A schematic diagram of the enlarged structure at B in the middle; Figure 8 for Figure 5 Schematic diagram of the enlarged structure at C in the middle; Fig. 9 for Figure 6 Schematic diagram of the enlarged structure at D in the middle.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Box body; 101. Bottom plate; 102. Side plate; 201. Fixed block; 202. First set of rods; 203. First sleeve; 204. Threaded rod; 205. Threaded tube; 206. Rocker; 207. First moving block; 208. Connecting block; 301. Second set of rods; 302. Second sleeve; 303. First spring; 401. Mounting groove; 402. Sealing strip; 501. U-shaped plate; 502. Rib plate; 601. Slot; 602. Second Moving block; 603, clamping block; 701, fixed cover; 702, air pipe; 703, pushing rod; 801, first limiting hole; 802, second limiting hole; 803, limiting rod; 901, T-shaped guide rod; 902, third moving block; 903, second spring; 1001, sealing gasket; 1002, avoidance groove; 11, box cover; 12, partition; 13, airbag; 1401, first L-shaped plate; 1402, connecting plate; 1403, second L-shaped plate. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] like Figure 1-9As shown, a leakproof reinforced packaging box includes a box body 1 and a box cover 11, the box body 1 includes a bottom plate 101 and a side plate 102, and the box body 1 is formed by folding the bottom plate 101 and the side plate 102, the inner and outer sides of the box body 1 and the box cover 11 are coated with a waterproof coating, and the four corners of the box body 1 are provided with connection modules, the box body 1 is connected with a partition 12 through a plug-in mechanism, and the side wall of the partition 12 is fixedly sleeved with a U-shaped air bag 13, and the box cover 11 is provided with a first sealing mechanism; The connection module includes a first L-shaped plate 1401, and the top of the first L-shaped plate 1401 is fixedly connected to a connecting plate 1402, and the bottom of the connecting plate 1402 is connected to a second L-shaped plate 1403 through a first moving mechanism, the partition 12 is between the first L-shaped plate 1401 and the second L-shaped plate 1403, and the second L-shaped plate 1403 is provided with a second sealing mechanism near the side wall of the partition 12, so that the bottom plate 101 and the side plate 102 are folded into the box body 1, and it is convenient to connect and fix the side plate 102 of the box body 1, and at the same time, it can be applicable to boxes 1 of different thicknesses, with stronger applicability, and the sealing strip 402 is abutted against the inner wall of the box body 1 to form a sealing effect, so that the waterproof and leak-proof effect of the box body 1 is better; the interior of the box body 1 can be separated, which can not only reduce the shaking amplitude and collision of the items, but also play a separation role in case of leakage to avoid mutual influence, and can reduce the scope of the leakage, so that the waterproof and leak-proof effect is better.

[0033] In this embodiment, Figure 7As shown, the first moving mechanism includes a fixed block 201 fixedly connected to the bottom of the connecting plate 1402, and the side wall of the fixed block 201 is fixedly connected to the first sleeve rod 202, the side wall of the first sleeve rod 202 is sleeved with a first sleeve tube 203, and the other end of the first sleeve tube 203 is fixedly connected to the first moving block 207, the side wall of the first moving block 207 is fixedly connected to a threaded tube 205, and the threaded tube 205 is internally threaded with a threaded rod 204, the other end of the threaded rod 204 is rotatably connected to the side wall of the fixed block 201, and the other end of the threaded rod 204 is fixedly connected to a rocker 206, the side wall of the first moving block 207 is connected to a connecting block 208 through a telescopic mechanism, and the connecting block 208 is fixed to the side wall of the second L-shaped plate 1403 When in use, first fold the bottom plate 101 and the side plate 102 into the box body 1, then, put the connecting modules on the four corners of the box body 1 in sequence, and make the first L-shaped plate 1401 on the outside of the box body 1, and the second L-shaped plate 1403 on the inside of the box body 1, then, turn the rocker 206, and the rotation of the rocker 206 drives the rotation of the threaded rod 204, thereby driving the first moving block 207 to move away from the fixed block 201, and driving the connecting block 208 to move through the telescopic mechanism, thereby driving the second L-shaped plate 1403 to move towards the first L-shaped plate 1401, and making the second L-shaped plate 1403 abut against the inner wall of the box body 1, so as to facilitate the connection and fixation of the side plate 102 of the box body 1.

[0034] In this embodiment, Figure 7 As shown, the telescopic mechanism includes two symmetrically arranged second rods 301 fixedly connected to the side walls of the first moving block 207, and the side walls of the second rods 301 are sleeved with second sleeves 302, the other ends of the second sleeves 302 are fixed to the side walls of the connecting block 208, and the side walls of each second sleeve 302 are sleeved with first springs 303. When the second L-shaped plate 1403 is in contact with the inner wall of the box body 1, the first spring 303 is gradually compressed, which can be applicable to boxes 1 of different thicknesses and has stronger applicability.

[0035] In this embodiment, Figure 3 As shown, the first sealing mechanism includes a ring-shaped sealing gasket 1001 fixedly inserted on the inner wall of the box cover 11, and avoidance grooves 1002 are opened at the four corners of the sealing gasket 1001, so that the sealing strip 402 is abutted against the inner wall of the box body 1 to form a sealing effect, thereby making the box body 1 more waterproof and leak-proof.

[0036] In this embodiment, Figure 4 and Figure 6As shown, the plug-in mechanism includes a plurality of groups of U-shaped plates 501 arranged in an array, and each group of U-shaped plates 501 has two members, the partition 12 is inserted into the U-shaped plate 501, and the U-shaped plate 501 is fixed to the inner wall of the box body 1, and the bottom of the box body 1 is fixedly connected with a plurality of groups of symmetrically arranged ribs 502, and each group of ribs 502 has two members, and the two ribs 502 of each group are located on both sides of the partition 12, and a snap-in mechanism is provided between the partition 12 and the U-shaped plate 501. When in use, the insertion position of the partition 12 is first selected according to the size of the items to be placed, and when inserting, the partition 12 is inserted into the U-shaped plate 501, and when the airbag 13 abuts against the bottom of the box body 1, the gas in the airbag 13 can be squeezed, and the airbag 13 can be abutted against the bottom and side walls of the box body 1 to form a sealing effect.

[0037] In this embodiment, Fig. 9 As shown, the clamping mechanism includes a clamping groove 601 opened on the side wall of each U-shaped plate 501, and the side wall of the partition 12 is connected to the second movable block 602 through a second movable mechanism, and the side wall of the second movable block 602 is fixedly connected with a clamping block 603. The second movable block 602 is driven to move by the second movable mechanism, and the clamping block 603 is inserted into the clamping groove 601 to form a clamping effect.

[0038] In this embodiment, Figure 6 and Fig. 9 As shown, the moving mechanism includes two symmetrically arranged fixed covers 701 fixedly connected to the side walls of each partition 12, and the second moving block 602 is inserted in the fixed cover 701, the bottom of each fixed cover 701 is fixedly connected with an air pipe 702, and the other end of the air pipe 702 is fixedly inserted in the side wall of the airbag 13, and the top of the fixed cover 701 is provided with a limiting mechanism for limiting the second moving block 602, and the top of the second moving block 602 is fixedly connected with a pushing rod 703. When the airbag 13 is squeezed, the internal air pressure increases, thereby entering the fixed cover 701 through the air pipe 702 and pushing the second moving block 602 to move. When the second moving block 602 moves, it drives the card block 603 to be inserted into the card slot 601, forming a card connection effect.

[0039] In this embodiment, Fig. 9 As shown, the limiting mechanism includes a first limiting hole 801 and a second limiting hole 802 opened at the top of the second moving block 602, and the top of the fixed cover 701 is connected to the third moving block 902 through a reset mechanism, and the bottom of the third moving block 902 is fixedly connected to a limiting rod 803. By pushing the third moving block 902 to move upward, the limiting rod 803 is withdrawn from the second limiting hole 802, and the third moving block 902 is released. At this time, the third moving block 902 can move downward under the action of the reset mechanism, and the limiting rod 803 is inserted into the first limiting hole 801 for limiting, which is more stable and reliable.

[0040] In this embodiment, Fig. 9 As shown, the reset mechanism includes two symmetrically arranged T-shaped guide rods 901 fixedly connected to the top of the fixed cover 701, the third moving block 902 is sleeved on the side walls of the T-shaped guide rods 901, and the side walls of each T-shaped guide rod 901 are sleeved with a second spring 903, which guides and resets the movement of the third moving block 902.

[0041] In this embodiment, Figure 8 As shown, the second sealing mechanism includes two symmetrically arranged installation grooves 401 opened on the side wall of the second L-shaped plate 1403, and a sealing strip 402 is fixedly inserted in each installation groove 401, so that the sealing effect between the box cover 11 and the box body 1 is better, and thus the waterproof and leak-proof effect is better.

[0042] The specific method of use of the present invention is as follows: When in use, first, the bottom plate 101 and the side plate 102 are folded into the box body 1, and then the connecting modules are sequentially sleeved at the four corners of the box body 1, so that the first L-shaped plate 1401 is located on the outside of the box body 1, and the second L-shaped plate 1403 is located on the inside of the box body 1, and then the rocking wheel 206 is rotated, and the rotation of the rocking wheel 206 drives the rotation of the threaded rod 204, thereby driving the first moving block 207 to move away from the fixed block 201, and driving the connecting block 207 through the telescopic mechanism. 8 moves, thereby driving the second L-shaped plate 1403 to move toward the direction close to the first L-shaped plate 1401. When the second L-shaped plate 1403 abuts against the inner wall of the box body 1, the first spring 303 is gradually compressed, thereby facilitating the connection and fixing of the side plate 102 of the box body 1. At the same time, it can be applied to boxes 1 of different thicknesses, with stronger applicability. In addition, the sealing strip 402 abuts against the inner wall of the box body 1 to form a sealing effect, thereby making the waterproof and leak-proof effect of the box body 1 better. Next, according to the size of the items to be put in, the insertion position of the partition 12 is selected. When inserting, the partition 12 is inserted into the U-shaped plate 501. When the airbag 13 abuts against the bottom of the box body 1, the gas in the airbag 13 can be squeezed, and the airbag 13 can be abutted against the bottom and side wall of the box body 1 to form a sealing effect. At the same time, by pushing the third moving block 902 to move upward, the limiting rod 803 is withdrawn from the second limiting hole 802, and the second spring 903 is compressed. When the airbag 13 is squeezed, the air pressure inside it increases, so that it enters the fixed cover 701 through the air pipe 702 and pushes the second moving block 602 to move. When the second moving block 602 moves, it drives the card block 603 to be inserted into the card slot 601 to form a card connection effect. And, release the third moving block 902. At this time, the third moving block 902 can move downward under the action of the second spring 903, and insert the limiting rod 803 into the first limiting hole 801 for limiting, which is more stable and reliable, so that the interior of the box body 1 can be separated. It can not only reduce the shaking amplitude and collision of the items, but also play a separation role when leakage occurs, avoid mutual influence, reduce the scope of leakage influence, and make the leakage prevention effect better.

[0043] In summary: the beneficial effects of the present invention are specifically embodied in that the bottom plate 101 and the side plate 102 can be folded into the box body 1, and it is convenient to connect and fix the side plate 102 of the box body 1. At the same time, it can be applicable to boxes 1 of different thicknesses, and has stronger applicability. In addition, the sealing strip 402 is abutted against the inner wall of the box body 1 to form a sealing effect, thereby making the waterproof and leak-proof effects of the box body 1 better. The interior of the box body 1 can be separated, which can not only reduce the shaking amplitude and collision of the items, but also play a separation role when leakage occurs to avoid mutual influence, and can reduce the scope of the leakage, so that the waterproof and leak-proof effects are better.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A leakproof reinforced packaging box, comprising a box body (1) and a box cover (11), characterized in that: The box body (1) comprises a bottom plate (101) and a side plate (102), and the box body (1) is formed by folding the bottom plate (101) and the side plate (102), the inner side and the outer side of the box body (1) and the box cover (11) are coated with a waterproof coating, and connection modules are arranged at the four corners of the box body (1), the box body (1) is connected with a partition plate (12) through a plug-in mechanism, and the side wall fixing sleeve of the partition plate (12) is provided with a U-shaped air bag (13), and the box cover (11) is provided with a first sealing mechanism; The connection module comprises a first L-shaped plate (1401), and the top of the first L-shaped plate (1401) is fixedly connected to a connection plate (1402), the bottom of the connection plate (1402) is connected to a second L-shaped plate (1403) via a first moving mechanism, the partition (12) is located between the first L-shaped plate (1401) and the second L-shaped plate (1403), and the second L-shaped plate (1403) is provided with a second sealing mechanism near the side wall of the partition (12).

2. A leakproof reinforced packaging box according to claim 1, characterized in that: The first moving mechanism comprises a fixed block (201) fixedly connected to the bottom of the connecting plate (1402), and the side wall of the fixed block (201) is fixedly connected to a first sleeve rod (202), the side wall of the first sleeve rod (202) is sleeved with a first sleeve tube (203), and the other end of the first sleeve tube (203) is fixedly connected to a first moving block (207), the side wall of the first moving block (207) is fixedly connected to a threaded tube (205), and the threaded tube (205) is internally threadedly connected to a threaded rod (204), the other end of the threaded rod (204) is rotatably connected to the side wall of the fixed block (201), and the other end of the threaded rod (204) is fixedly connected to a rocker (206), the side wall of the first moving block (207) is connected to a connecting block (208) via a telescopic mechanism, and the connecting block (208) is fixed to the side wall of the second L-shaped plate (1403).

3. The leakproof reinforced packaging box according to claim 2, characterized in that: The telescopic mechanism comprises two symmetrically arranged second sleeve rods (301) fixedly connected to the side wall of the first moving block (207), the side wall of the second sleeve rods (301) is sleeved with a second sleeve tube (302), the other end of the second sleeve tube (302) is fixed to the side wall of the connecting block (208), and the side wall of each second sleeve tube (302) is sleeved with a first spring (303).

4. The leakproof reinforced packaging box according to claim 1, characterized in that: The first sealing mechanism comprises a sealing gasket (1001) arranged in an annular shape and fixedly inserted on the inner side wall of the box cover (11), and avoidance grooves (1002) are provided at the four corners of the sealing gasket (1001).

5. The leakproof reinforced packaging box according to claim 1, characterized in that: The plug-in mechanism comprises a plurality of groups of U-shaped plates (501) arranged in an array, and each group of U-shaped plates (501) comprises two plates. The partition plate (12) is inserted into the U-shaped plate (501), and the U-shaped plate (501) is fixed to the inner wall of the box body (1). The bottom of the box body (1) is fixedly connected with a plurality of groups of symmetrically arranged rib plates (502), and each group of rib plates (502) comprises two plates. The two rib plates (502) in each group are located on both sides of the partition plate (12), and a clamping mechanism is provided between the partition plate (12) and the U-shaped plate (501).

6. The leakproof reinforced packaging box according to claim 5, characterized in that: The clamping mechanism comprises a clamping groove (601) formed on the side wall of each U-shaped plate (501), and the side wall of the partition plate (12) is connected to a second moving block (602) via a second moving mechanism, and the side wall of the second moving block (602) is fixedly connected to a clamping block (603).

7. The leakproof reinforced packaging box according to claim 5, characterized in that: The moving mechanism comprises two symmetrically arranged fixed covers (701) fixedly connected to the side walls of each partition (12), and the second moving block (602) is inserted in the fixed covers (701), the bottom of each fixed cover (701) is fixedly connected to an air pipe (702), and the other end of the air pipe (702) is fixedly inserted in the side wall of the airbag (13), the top of the fixed cover (701) is provided with a limiting mechanism for limiting the second moving block (602), and the top of the second moving block (602) is fixedly connected to a push rod (703).

8. The leakproof reinforced packaging box according to claim 7, characterized in that: The limiting mechanism comprises a first limiting hole (801) and a second limiting hole (802) formed on the top of the second moving block (602), and the top of the fixed cover (701) is connected to the third moving block (902) via a reset mechanism, and the bottom of the third moving block (902) is fixedly connected to the limiting rod (803).

9. The leakproof reinforced packaging box according to claim 8, characterized in that: The reset mechanism comprises two symmetrically arranged T-shaped guide rods (901) fixedly connected to the top of the fixed cover (701), the third moving block (902) is sleeved on the side walls of the T-shaped guide rods (901), and the side walls of each T-shaped guide rod (901) are sleeved with a second spring (903).

10. The leakproof reinforced packaging box according to claim 1, characterized in that: The second sealing mechanism comprises two symmetrically arranged mounting grooves (401) opened on the side wall of the second L-shaped plate (1403), and a sealing strip (402) is fixedly inserted in each mounting groove (401).

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