A honeycomb box with a moisture-proof structure at the bottom

Abstract

This invention discloses a honeycomb box with a moisture-proof bottom structure, relating to the field of honeycomb box technology. It includes a box body and a cover made of honeycomb cardboard. A bottom plate is provided at the bottom of the box body, comprising a support portion, a buffer portion, and a base plate. The support portion is used to close and support the bottom of the box body. The base plate is made of a rigid material and forms the base for placing the box. The buffer portion is located between the support portion and the base plate. The buffer portion includes multiple buffer blocks made of honeycomb cardboard and spaced apart. A compensation component is also provided inside the bottom plate, including an elastic component and a locking component. This honeycomb box with a moisture-proof bottom structure, through a triggerable mechanical compensation mechanism, automatically activates the rigid support after detecting that the box body has softened due to moisture, thus automatically switching to a wet-state strengthening mode. This effectively solves the core problem of the rapid strength loss of traditional cardboard boxes in humid environments.

Description

Technical Field

[0001] This invention relates to the field of honeycomb box technology, and in particular to a honeycomb box with a moisture-proof structure at the bottom. Background Technology

[0002] Honeycomb cardboard boxes are an environmentally friendly packaging material based on the natural honeycomb structure. Their main structure consists of a hollow hexagonal core formed by bonding corrugated paper through an adhesive process, with linerboard glued to both sides. This unique sandwich structure gives honeycomb cardboard boxes their lightweight, high strength, excellent compression and bending resistance, and good cushioning and shock absorption. Therefore, they are widely used in the packaging and transportation of home appliances, electronic products, and cold chain logistics, becoming a green alternative to wooden crates and foam cushioning materials.

[0003] However, the paper material properties of existing honeycomb cardboard boxes pose significant challenges in humid environments. Because their base material is paper, honeycomb cardboard boxes do not possess good moisture-proof or waterproof properties. When placed on damp ground or in high-humidity environments for extended periods, they easily absorb moisture from the air. This moisture absorption leads to a significant decrease in the box's strength, manifesting as softening of the cardboard, impaired structural stability, and potentially causing collapse or deformation, thus failing to effectively support and protect the contents. This problem is particularly pronounced in applications with high moisture-proof requirements, such as cold chain packaging, where the loss of support strength after moisture absorption is a key factor limiting its wider application. Therefore, improving the moisture-proof performance of the bottom structure is an important direction for improving the overall reliability of honeycomb cardboard boxes.

[0004] Therefore, there are still shortcomings and deficiencies in the existing technology. How to provide a honeycomb box with a moisture-proof structure at the bottom is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a honeycomb box with a moisture-proof structure at the bottom, which solves the technical problem that existing honeycomb cardboard boxes are prone to moisture absorption and softening in humid environments, resulting in a significant decrease in structural strength and restricting their reliable application in high-humidity scenarios such as cold chain logistics.

[0006] To achieve the above objectives, the present invention provides a honeycomb box with a moisture-proof structure at the bottom, comprising a box body and a cover plate made of honeycomb cardboard, and a bottom plate provided at the bottom of the box body, the bottom plate comprising a support part, a buffer part and a base plate;

[0007] The support section is used to close and support the bottom of the box; the base plate is made of rigid material and forms the base for placing the box; the buffer section is located between the support section and the base plate;

[0008] The cushioning section includes multiple spaced-apart cushioning blocks made of honeycomb cardboard; the base plate also has a compensation component inside, which includes an elastic component and a locking component;

[0009] The elastic element can be released by the locking element after the buffer block's support performance deteriorates due to moisture, providing compensatory elastic support for the support part.

[0010] Preferably, the compensation element is disposed in the space between two adjacent buffer blocks, and the elastic element is a spring sheet. The spring sheet is installed above the base plate by a fixing plate and is located below the support portion.

[0011] Preferably, the spring is pre-compressed in the initial state, with its highest point maintaining a preset distance from the bottom surface of the support, and the compression state is maintained by the locking member.

[0012] Preferably, the locking element is configured such that when the supporting part is pressed down to a preset position due to the collapse of the buffer block, the locking element is released, causing the spring to rebound to support the supporting part.

[0013] Preferably, the locking element includes a trigger groove and a guide rod that cooperate with each other; the movement of the guide rod is controlled by the trajectory of the trigger groove, thereby converting the linear pressing action of the support part into the release of the spring piece.

[0014] Preferably, the trigger slot is a closed-loop slot, and its trajectory includes, in sequence, a release position, a downward slide, a first corner, a locking position, a second corner, and an upward slide.

[0015] Preferably, the locking element also includes a sleeve, a top plate, a base plate, and a spring; the spring provides an elastic force that moves the top plate away from the base plate, and the movement of the guide rod is transmitted through a rotatable connection between the rocker arm and the fixed rod.

[0016] Preferably, the buffer section also has a drying tube embedded inside to absorb moisture and slow down the process of the buffer block becoming damp and softened.

[0017] Preferably, the supporting part is a support plate made of honeycomb cardboard, and its outer ring is fixedly connected to the bottom outer wall of the box by edge binding.

[0018] Preferably, the substrate is made of plastic.

[0019] The present invention has the following advantages:

[0020] (1) Compared with the above-mentioned background technology, the honeycomb box with a moisture-proof structure at the bottom provided by the present invention achieves "on-demand distribution" of cushioning performance by introducing a triggerable compensation component. Under dry conditions, the spring is locked in a compressed state and does not contact the support plate, thus fully preserving the inherent and optimized cushioning dynamics of the honeycomb cardboard and ensuring optimal impact protection for the contents. When it is detected that the support performance of the cushioning block has significantly decreased due to moisture, the locking mechanism is triggered, and the compensation component (spring) is quickly released and unfolded to provide timely rigid support compensation for the support plate. This allows the bottom structure of the box to automatically switch from "high cushioning mode" to "high strength mode", solving the problem that traditional packaging loses its protective ability due to bottom softening and collapse on wet ground, and improving the reliability of packaging in complex environments.

[0021] (2) Compared with the above-mentioned background technology, the honeycomb box with a moisture-proof structure at the bottom provided by the present invention achieves moisture-proof reinforcement while taking into account the economy and ease of maintenance for long-term use. The entire triggering and compensation system adopts a purely mechanical structure, requiring no external energy or electronic sensors, and is reliable and cost-effective. The compensation component (spring) is only activated when the performance of the buffer block deteriorates. This "dormant standby" working mode minimizes fatigue wear on the components themselves and helps to extend their service life. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the box structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at point A;

[0026] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at point B;

[0027] Figure 5 This is a schematic diagram of the compensation component structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the sleeve and bottom rod structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the trigger section structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the upper and lower semi-cylinder structures of the present invention;

[0031] Figure 9 This is a schematic diagram of the pendulum structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the front structure of the lower semi-cylinder of the present invention.

[0033] In the diagram: 1. Box body; 2. Cover plate; 3. Base plate; 4. Edge banding; 5. Drying tube; 6. Locking element; 7. Converting pin; 8. Fixing rod; 301. Support plate; 302. Buffer part; 303. Base plate; 3021. Buffer block; 3022. Compensating element; 3211. Fixing plate; 3212. Spring; 601. Base rod; 602. Chassis; 603. Sleeve; 604. Top plate; 605. Spring; 606. Trigger part; 6061. Upper semi-cylinder; 6062. Swing rod; 6063. Trigger groove; 6064. Lower semi-cylinder; 6631. Release position; 6632. Lower slide rail; 6633. First corner; 6634. Locking position; 6635. Second corner; 6636. Upper slide rail. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] This invention provides a honeycomb box with a moisture-proof structure at the bottom. Through a set of triggerable mechanical compensation mechanisms, it can automatically activate rigid support after detecting that the box body has become damp and softened, thereby automatically switching to the "wet-state reinforcement" mode. This effectively solves the core problem of the rapid decrease in strength of traditional cardboard boxes in humid environments, and can also solve the problem that the structural strength of existing honeycomb cardboard boxes is significantly reduced because the paper material is extremely easy to absorb moisture and soften in humid environments.

[0037] Please refer to this as well. Figures 1 to 10This invention provides a honeycomb box with a moisture-proof bottom structure, mainly composed of a box body 1, a cover plate 2, and a bottom plate 3, all made of honeycomb cardboard. The cover plate 2 seals the opening at the top of the box body 1, forming a complete packaging unit; the bottom plate 3 is fixed to the bottom of the box body 1 by an edge banding 4, serving to support the box body 1 and its contents. In actual warehousing and transportation, moisture often seeps upwards from the ground. If the bottom wall of the box body 1 is in direct contact with the ground, it is easily corroded by moisture, causing the bottom cardboard to gradually soften, reducing its load-bearing and supporting performance, and seriously affecting the protection of the contents. Therefore, this embodiment designs the bottom plate 3 of the box body 1 as an off-ground structure with supporting and lifting functions, raising the entire bottom of the box body 1 off the ground, thereby forming a stable air gap between the bottom wall and the ground to effectively block ground moisture and significantly improve the overall moisture-proof capability of the box body 1.

[0038] Specifically, such as Figures 1-2 As shown, the base plate 3 can be disassembled into a three-layer structure: a support part, a buffer part 302, and a base plate 303. The support part is located at the bottom of the box 1 and directly undertakes the support function. It is a support plate 301 made of the same honeycomb cardboard material as the box 1, and is firmly connected to the bottom outer wall of the box 1 through the outer edge 4, thereby closing the bottom opening of the box 1 and achieving stable support for the internal items.

[0039] The base plate 303 is located below the support plate 301 and is made of rigid materials such as plastic. Its rigidity prevents deformation and provides a flat and stable base for the entire box 1. The buffer part 302 is located between the support plate 301 and the base plate 303. Its function is to provide cushioning at the bottom of the box 1 to protect the internal items from impact.

[0040] Specifically, such as Figures 2-4 As shown, the buffer section 302 is composed of multiple honeycomb cardboard buffer blocks 3021 of the same material as the box body 1. These buffer blocks 3021 are arranged at equal intervals along the transverse length of the box body 1, with gaps between them. While ensuring structural ventilation, they can effectively maintain the ground clearance of the support plate 301 and absorb energy through their own elastic deformation, thus giving the bottom of the box body 1 better buffering and support performance. The upper and lower surfaces of the buffer blocks 3021 are fixedly connected to the support plate 301 and the base plate 303 by means of adhesive or other methods, ensuring that the three-layer structure works together.

[0041] Through the above structural design, the buffer block 3021 not only effectively raises the support plate 301, increasing the ground clearance and thus preventing the support plate 301 from directly contacting the ground and becoming damp, collapsing, or damaged, but also, because the buffer block 3021 is made of the same honeycomb cardboard material as the box body 1, it can also exert the inherent elasticity of the material under the support plate 301, providing a good cushioning effect and further enhancing the overall protection performance of the bottom of the box body 1.

[0042] However, while the buffer block 3021 can both lift and cushion, its honeycomb cardboard material itself is also susceptible to softening due to moisture, leading to cushioning failure or even collapse. Simply replacing the buffer block 3021 with a rigid material, while maintaining the gap and preventing deformation due to moisture, would sacrifice its valuable cushioning function. Therefore, this embodiment further proposes embedding a drying tube 5 inside the buffer block 3021. This drying tube 5 actively absorbs moisture in the bottom space of the housing 1, achieving a functional enhancement from passive isolation to active moisture protection. By reducing the moisture absorbed by the surrounding buffer blocks 3021, the softening process due to moisture can be significantly slowed down, thereby maintaining cushioning performance while improving the overall moisture-proof reliability and durability of the bottom structure.

[0043] Through the above setup, although the drying tube 5 can actively absorb moisture, its absorption capacity is limited and it may still reach saturation during long-term storage. Once the drying tube 5 is saturated, ambient moisture will continue to erode the buffer block 3021, and even during normal operation of the drying tube 5, it is difficult to guarantee that all moisture will be absorbed, leaving the buffer block 3021 at risk of becoming damp. When the buffer block 3021 absorbs moisture, its internal honeycomb support structure will gradually soften due to moisture infiltration, leading to a decrease in support strength and ultimately causing collapse. This will not only cause the buffer block 3021 itself to lose its proper cushioning performance but also reduce the ground clearance of the support plate 301, making it more susceptible to the direct impact of ground moisture and ultimately weakening the load-bearing capacity of the support plate 301. Therefore, the collapse of the buffer block 3021 due to moisture will simultaneously impair its dual functions of lifting and cushioning.

[0044] To solve the above problems, such as Figures 2-4 As shown, this embodiment further incorporates a compensation element 3022 into the buffer section 302. The main function of this compensation element 3022 is to promptly intervene and provide compensatory buffering after the buffer block 3021 experiences a significant decrease in support strength and a substantial decline in buffering performance due to moisture absorption, thereby maintaining the overall function of the buffer section 302. Considering that if the compensation element 3022 participates in support alongside the buffer block 3021 under normal conditions, the combined elastic effect would increase the overall hardness of the buffer section 302, negatively impacting the normal buffering effect, this embodiment designs the compensation element 3022 to operate in a trigger-based mode. Specifically, the compensation element 3022 is in a standby state under normal circumstances and does not participate in support; it is only activated and begins to work when the buffer block 3021 absorbs moisture and its performance deteriorates to a certain extent. This achieves precise compensation for the remaining buffering function, ensuring that the bottom of the housing 1 maintains appropriate buffering and support under different conditions.

[0045] Specifically, the compensation member 3022 is disposed in the space between two adjacent buffer blocks 3021, and its structure includes a fixing plate 3211 and an elastic member. The elastic member is fixed above the base plate 303 by the fixing plate 3211 and is located between adjacent buffer blocks 3021 and below the support plate 301, thereby providing additional elastic support for the upper support plate 301 to enhance the overall buffer strength.

[0046] More specifically, there are two fixing plates 3211, which are fastened to the two sides above the base plate 303 by screws along the transverse direction; the elastic element is a spring sheet 3212, which is bent in the normal released state, and its two ends are fixed to the two fixing plates 3211 by screws respectively. After installation, the spring sheet 3212 presents an upward arched arc under the support plate 301, which provides additional elastic cushioning for the support plate 301.

[0047] Considering that the design goal is to ensure that the spring 3212 only intervenes after the performance of the buffer block 3021 has significantly decreased, in order to avoid the increased buffering stiffness caused by both supporting simultaneously, simply reducing the preset height of the spring 3212 to achieve delayed contact would introduce new contradictions: if the initial gap between the spring 3212 and the bottom surface of the support plate 301 is too small, the support plate 301 will easily contact the spring 3212 too early when bearing the weight of the internal items and the buffer block 3021 undergoes normal compression, causing the spring 3212 to participate in support prematurely, resulting in excessive overall stiffness of the buffer section 302; conversely, if the initial gap is set too large, the support plate 301 will only contact the spring 3212 after the buffer block 3021 has severely collapsed and the ground clearance has been greatly reduced. At this time, although the spring 3212 is triggered, its intervention support height has been significantly reduced, resulting not only in an insufficient effective ground clearance, but also in an unsatisfactory compensation effect due to the excessive collapse of the buffer block 3021. Therefore, precise control of the timing of the intervention of the shrapnel 3212 becomes the key to balancing buffer performance and ground clearance.

[0048] To address the balance between the timing of the spring shrapnel 3212's intervention and the support height, ensuring it only triggers after the buffer block 3021 collapses, and effectively maintaining the ground clearance of the support plate 301, such as... Figures 4-7As shown, a locking mechanism 6 is introduced in this embodiment. This locking mechanism 6 can pre-constrain the spring piece 3212 into a compressed state, maintaining a large gap between its highest point and the bottom surface of the support plate 301, thereby effectively preventing accidental contact during the normal compression phase of the buffer block 3021. When the buffer block 3021 becomes damp and collapses, dropping to a preset position, the locking mechanism 6 is triggered and releases the spring piece 3212. The spring piece 3212, utilizing its stored elastic potential energy, quickly rebounds, pushing the support plate 301 upwards, not only raising it to a preset height to restore a safe ground clearance, but also providing continuous elastic cushioning support for the support plate 301.

[0049] In specific implementations, the spring sheet 3212 can adopt a long strip structure, and multiple sets can be arranged at equal intervals along the length of the fixed plate 3211 to evenly distribute the supporting force. In other feasible implementations, larger single spring sheets 3212 can also be selected for arrangement, so that the required compensation and support effect can be achieved between adjacent buffer blocks 3021 with a smaller number of spring sheets 3212.

[0050] The locking element 6 is positioned at a critical location between the spring 3212 and the base plate 303. Its structure mainly consists of a base rod 601, a base plate 602, a sleeve 603, a top plate 604, a spring 605, and a core triggering part 606. The base rod 601 is secured to the base plate 303 with screws, and the base plate 602 is coaxially fixed to its top. A sleeve 603 is slidably fitted onto the outside of the base plate 602. This sleeve 603 is connected to the lower part of the spring 3212 with screws and is located below the highest point of the arch of the spring 3212. At the top of the inner cavity of the sleeve 603, a top plate 604, coaxial with the base plate 602, is fixed. Between the two, a spring 605 provides elastic support, and a triggering part 606, which controls the entire action sequence, is installed, thus forming a compact module integrating locking, energy storage, and triggering functions.

[0051] The trigger unit 606 is the core of automatic control. It is configured such that when the top plate 604 is pressed down to a preset stroke for the first time by pressure from above, the entire mechanism is locked at that height, and the spring 3212 remains in a compressed standby state. When the top plate 604 is pressed down again while still locked, the mechanism instantly unlocks, and the top plate 604 quickly returns to its initial height under the action of the spring 605, causing the spring 3212 to release. Figures 6-9As shown, the trigger unit 606 specifically includes an upper semi-cylinder 6061, a rocker arm 6062, a lower semi-cylinder 6064, and a precision closed-loop trigger groove 6063. The upper semi-cylinder 6061 is fixed below the top plate 604 and located at the top of the sleeve 603, with its plane facing rearward. A rocker arm 6062 is hinged to its rear end. The rocker arm 6062 is rotatably sleeved on a fixing rod 8 radially fixed to the top plate 604 through a hole at its top end. A conversion pin 7 is vertically fixed to the lower end of the rocker arm 6062, forming an L-shaped structure. The lower semi-cylinder 6064, coaxially fixed above the base plate 602, faces forward and corresponds to the upper semi-cylinder 6061. The conversion pin 7 is precisely inserted into the trigger groove 6063 opened on the front end face of the lower semi-cylinder 6064.

[0052] The key to the entire device lies in its unique trigger groove 6063 design. The trajectory of this groove is specially calculated, allowing the movement of the conversion pin 7, which is linked to the rocker arm 6062, to be programmed. It transforms the simple linear downward pressing action of the top plate 604 into a controlled two-step mechanical procedure: First, the conversion pin 7 slides down the groove, the mechanism is locked at a specific position, and the potential energy of the spring 605 is stored; second, further pressure causes the conversion pin 7 to disengage from the locking point, triggering the release. This ensures the irreversibility of the action and the precision of the triggering timing, realizing a mechanism that "releases the spring 3212 for compensatory support only when the buffer block 3021 collapses to a specific degree and generates sufficient downward stroke," enabling the spring 3212 to provide effective cushioning and restore the support height of the support plate 301 at the most needed moment.

[0053] Specifically, such as Figure 8 , Figure 10As shown, the closed-loop trigger groove 6063 includes a release position 6631, a downward slide 6632, a first corner 6633, a locking position 6634, a second corner 6635, and an upward slide 6636. The release position 6631 is located at the top of the lower semi-cylinder 6064, from which it smoothly transitions through an inclined channel to the downward slide 6632 on the same side, and extends downward to the first corner 6633 at the bottom. The first corner 6633 is connected to the second corner 6635 located at the bottom of the other side of the cylinder through a horizontal and slightly inclined locking position 6634. The second corner 6635 is then connected upward to the starting point of the convergence of the release position 6631 and the downward slide 6632 via the upward slide 6636. Its working principle is as follows: Initially, the conversion pin 7 is located in the release position 6631, and the spring piece 3212 is in the fully released state. When the conversion pin 7 is moved downward in a controlled manner, it will be guided into the downward slide 6632 along the inclined channel and slide to the bottom of the first corner 6633. At this time, if the downward pressure is released, the spring 605 rebounds and drives the top plate 604 to move upward. The conversion pin 7 rises and slides into the horizontal locking position 6634 and is mechanically locked. The spring piece 3212 is then kept compressed, and its apex maintains a preset gap with the bottom surface of the support plate 301. When the buffer block 3021 collapses due to moisture, causing the support plate 301 to descend and eventually press against the spring 3212, the spring 3212 drives the sleeve 603 to press down as a whole, and the conversion pin 7 moves in the trigger groove 6063. The inclined bottom wall of the locking position 6634 guides the conversion pin 7 to the second corner 6635, causing it to disengage from the locked state. Subsequently, the elastic force stored in the spring 3212 is released, pushing the support plate 301 to move upward to restore the ground clearance. At the same time, the conversion pin 7 returns to the release position 6631 along the upward slide 6636, and the spring 3212 unfolds into an arch shape, providing continuous elastic buffer support for the support plate 301.

[0054] In this embodiment, during operation: In the initial state of the entire system, the spring piece 3212 is constrained into a compressed state by the locking member 6, with its top end maintaining a certain distance from the bottom surface of the support plate 301. At this time, the weight of the housing 1 is mainly borne by the buffer block 3021 made of honeycomb cardboard, which exerts its excellent buffering performance. When ambient moisture intrudes, causing the buffer block 3021 to become damp, its strength to decrease, and it to collapse, the support plate 301 will descend accordingly. The downward pressure of the support plate 301 will cause the sleeve 603 connected to it to move downward as a whole, thereby pressing the top plate 604 in the locking member 6. The downward pressure of the top plate 604 will drive the trigger mechanism below it to move, specifically manifested as the conversion pin 7 moving within the closed-loop trigger groove 6063 of a specific shape: when the buffer block 3021 collapses to a preset degree, the pressure of the top plate 604 causes the conversion pin 7 to overcome resistance and slide from the locking position 6634 to the second corner 6635, thereby releasing the mechanical lock on the spring piece 3212. The instantaneous release of the lock allows the elastic potential energy stored in the compressed spring 3212 to be released. The spring 3212 quickly rebounds upwards, its elastic force lifting the support plate 301 upwards, effectively restoring the ground clearance reduced by the collapse of the buffer block 3021. Simultaneously, it provides continuous elastic support to the support plate 301, compensating for the loss of buffering function due to the softened buffer block 3021. After completing the support, the conversion pin 7 returns along the upward slide 6636 to the release position 6631 of the trigger slot 6063, while the spring 3212 remains in its extended arched shape, continuing to provide stable support. This ensures that the additional rigid support is only activated when moisture causes the buffer block 3021's performance to deteriorate, thus balancing the buffering needs under normal conditions with the moisture-proof reinforcement requirements in harsh environments.

[0055] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0056] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A honeycomb box with a moisture-proof bottom structure, comprising a box body (1) and a cover plate (2) made of honeycomb cardboard, characterized in that, The bottom of the box (1) is provided with a bottom plate (3), which includes a support part, a buffer part (302) and a base plate (303). The supporting part is used to close and support the bottom of the box (1); the base plate (303) is made of rigid material and forms the placement base of the box (1); the buffer part (302) is provided between the supporting part and the base plate (303); The buffer section (302) includes a plurality of buffer blocks (3021) made of honeycomb cardboard and spaced apart; the base plate (3) is also provided with a compensation component (3022), which includes an elastic component and a locking component (6). The elastic component is a spring sheet (3212). Under normal circumstances, the compensation component (3022) is in a standby state and does not participate in support. Only when the buffer block (3021) absorbs moisture and its performance drops to a certain level, the compensation component (3022) is activated and intervenes in the work. The elastic element can be released by the locking element (6) after the support performance of the buffer block (3021) decreases due to moisture, providing compensatory elastic support for the support part; The spring (3212) is pre-compressed in the initial state, and its highest point maintains a preset distance from the bottom surface of the support part, and is maintained in a compressed state by the locking member (6); The locking member (6) is configured such that when the supporting part is pressed down to a preset position due to the collapse of the buffer block (3021), the locking member (6) is unlocked, so that the spring piece (3212) rebounds to support the supporting part.

2. A honeycomb box with a moisture-proof bottom structure according to claim 1, characterized in that, The compensation component (3022) is disposed in the space between two adjacent buffer blocks (3021), and the spring piece (3212) is mounted above the base plate (303) by a fixing plate (3211) and located below the support portion.

3. A honeycomb box with a moisture-proof structure at the bottom according to claim 1, characterized in that, The locking member (6) includes a trigger groove (6063) and a guide rod that cooperate with each other; the movement of the guide rod is controlled by the trajectory of the trigger groove (6063), thereby converting the linear pressing action of the support part into the release of the spring piece (3212).

4. A honeycomb box with a moisture-proof structure at the bottom according to claim 3, characterized in that, The trigger slot (6063) is a closed-loop slot, and its trajectory includes, in sequence, a release position (6631), a downward slide (6632), a first corner (6633), a locking position (6634), a second corner (6635), and an upward slide (6636).

5. A honeycomb box with a moisture-proof structure at the bottom according to claim 4, characterized in that, The locking element (6) also includes a sleeve (603), a top plate (604), a base plate (602), and a spring (605); the spring (605) provides an elastic force that moves the top plate (604) away from the base plate (602), and the movement of the guide rod is transmitted through the rotational connection between the swing rod (6062) and the fixed rod (8).

6. A honeycomb box with a moisture-proof structure at the bottom according to claim 1, characterized in that, The buffer section (302) is also equipped with a drying tube (5) to absorb moisture and slow down the process of the buffer block (3021) becoming damp and softened.

7. A honeycomb box with a moisture-proof structure at the bottom according to claim 1, characterized in that, The supporting part is a support plate (301) made of honeycomb cardboard, and its outer ring is fixedly connected to the bottom outer wall of the box (1) by the edging (4).

8. A honeycomb box with a moisture-proof structure at the bottom according to claim 1, characterized in that, The substrate (303) is made of plastic.

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