Multifunctional liquid cooling plate transportation material box device

Abstract

The invention discloses a multifunctional liquid cooling plate transportation workbin device, and relates to the technical field of automobile part manufacturing, and the technical key points are as follows: the multifunctional liquid cooling plate transportation workbin device comprises a workbin of which the size can be adjusted to adapt to different water cooling plate sizes, and the workbin is provided with an automatic workbin clamping system for automatically clamping a liquid cooling plate; a material box forklift hole used for forklift operation is further formed in the material box. The device further comprises a liquid cooling plate, a stress plate, a material placing table and a material protecting pad. The material box is formed by welding iron sheets; the device has an automatic clamping function, transportation damage is reduced, the rejection rate is reduced, and safe transportation can be guaranteed.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, and in particular to a multifunctional liquid-cooled plate transport box device. Background Technology

[0002] With the booming development of the new energy vehicle industry, liquid cooling plates, as a key component of automotive parts, are particularly important in the production and transportation stages of their manufacturing process. Liquid cooling plates play a crucial role in the heat dissipation system of new energy vehicles, and their quality directly affects the vehicle's performance and safety. However, in the current transportation process, due to the lack of effective protective measures, liquid cooling plates are easily damaged by bumps or scratches, leading to product scrap. This not only increases production costs but also seriously affects production efficiency, causing significant economic losses to enterprises. Therefore, how to effectively solve the problem of damage during the transportation of liquid cooling plates has become a critical challenge that urgently needs to be addressed within the industry.

[0003] Besides the issue of damage during transportation, the inherent characteristics of liquid cooling plates also present numerous inconveniences. Liquid cooling plates are non-standard parts, with significant differences in length, width, and height between different models. This means that a custom-made transport container is required for each different model of liquid cooling plate. Custom-made containers not only increase production costs for companies but also reduce the versatility of transport equipment. Furthermore, existing custom containers offer limited methods for securing liquid cooling plates, often using cable ties. While this method can prevent displacement during transport to some extent, the securing effect is not ideal, and the liquid cooling plates can still be scratched or bumped due to displacement, failing to fundamentally guarantee their safety during transportation. Summary of the Invention

[0004] In order to at least solve one of the above-mentioned technical problems, the present invention aims to provide a multifunctional liquid-cooled plate transport box device with automatic clamping function, which reduces transport damage, lowers the scrap rate, and ensures safe transport.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multifunctional liquid-cooled plate transport box device includes a box, a liquid-cooled plate, a load-bearing plate, a feeding platform, a protective pad, an automatic clamping system for the box, and a forklift hole for the box.

[0007] The material bin has an adjustable size structure, and the automatic clamping system of the material bin is set on the material bin for automatically clamping the liquid cooling plate; the forklift hole of the material bin is set on the material bin for forklift operation;

[0008] The force-bearing plate is connected to multiple automatic clamping systems for material boxes, and the multiple automatic clamping systems for material boxes are located at different positions on the force-bearing plate;

[0009] The material dispensing platform is located inside the material box. Multiple material dispensing platforms are provided in one material box, with platforms located at the four corners and the middle of the box. The material dispensing platforms are installed at the bottom of the box.

[0010] The forklift holes for the material bins are located at the four corners of the bottom of the material bins, and one material bin is provided with multiple forklift holes;

[0011] The automatic clamping system for the material box includes a protective rubber pad, a clamping platform, a telescopic support frame, a transmission gear, a transmission worm gear, a rack, a rack lock hole, a rack lock, a connecting shaft, and a connecting rod. The protective rubber pad is installed on the clamping platform, which is mounted on the material box via the telescopic support frame. The displacement of the clamping platform is controlled by the transmission worm gear.

[0012] The protective pad is located at the bottom of the material box.

[0013] Preferably, the force-bearing plate is composed of a high-strength iron plate, and one force-bearing plate is connected to three automatic clamping systems for the material boxes. The three automatic clamping systems for the material boxes are located at the lower left corner, lower right corner, and upper center of the force-bearing plate, respectively.

[0014] Preferably, the feeding platform is made of rigid plastic or rubber, and five feeding platforms are provided for one material box, which are installed on the bottom of the box by expansion screws.

[0015] Preferably, the forklift holes in the hopper are made of high-strength steel plates and are welded to the four bottom corners of the hopper.

[0016] Preferably, the protective rubber gasket is mounted on the clamping platform by bolts.

[0017] Preferably, the protective pad is made of rubber or plastic.

[0018] The present invention has the following beneficial effects:

[0019] I. Reducing Transportation Damage and Lowering Scrap Rate: Current methods for transporting liquid-cooled plates lack effective protective measures, making them susceptible to damage from bumps and scratches, leading to product scrap, increased production costs, and reduced production efficiency. The multifunctional liquid-cooled plate transport bin device provided by this invention, by incorporating an automatic clamping system on the bin, can automatically clamp the liquid-cooled plates, effectively reducing scratches and impacts caused by displacement changes during transportation. This lowers the scrap rate during transport, ensures the safety of the liquid-cooled plates during transport, and solves the pressing problem of liquid-cooled plate damage during transportation in the industry.

[0020] II. Adaptability to Different Size Liquid Cooling Plates, Enhancing Versatility: Liquid cooling plates are non-standard parts, with significant size differences between different models. Current methods require custom-made transport containers for each model, increasing production costs and reducing the versatility of transport equipment. The material container of this invention is adjustable in size to accommodate different water-cooling plate sizes, making the container a universal component. This reduces the need for custom-made containers for each product, effectively lowering transportation costs and improving the versatility of transport equipment.

[0021] III. Optimized Fixing Method and Enhanced Fixing Effect: Existing dedicated bins for fixing liquid cooling plates rely on a single method, often using cable ties, which is not ideal. The liquid cooling plates may still be scratched or damaged due to displacement. The automatic bin clamping system of this invention uses a forklift to apply an upward force to the load-bearing plate, causing it to move upwards. The connecting rod transmits a downward force to the rack via a connecting shaft, driving the transmission gear to rotate. This, in turn, causes the transmission worm gear to move inwards into the bin, tightening the clamping platform. The three automatic bin clamping systems in one bin simultaneously retract inwards to clamp the liquid cooling plate, resulting in a better fixing effect and fundamentally ensuring the safety of the liquid cooling plate during transportation.

[0022] IV. Facilitates forklift operation and improves transportation convenience: This invention features forklift holes on the material bin, which are made of high-strength steel plates and welded to the four bottom corners of the bin. This design facilitates forklift operation, improves loading and unloading efficiency during the transport of liquid-cooled plates, and further enhances overall transportation convenience.

[0023] V. Rational Component Layout for Comprehensive Protection: The device features five material feeding platforms—one at each of the four corners of the container and one in the center. These platforms, made of high-friction hard plastic or rubber, are installed at the bottom of the container using expansion bolts, serving to support and protect the liquid cooling plates and prevent them from shifting during transport. Protective pads, made of rubber or plastic, are located at the bottom of the container and primarily protect the protruding parts of the liquid cooling plates. This rational layout and design of the components provides comprehensive protection for the liquid cooling plates.

[0024] VI. Adjustable clamping position to meet diverse needs: The transmission gear in the automatic clamping system of the material bin can be quickly disassembled. After the quick disassembly is opened, the position of the transmission worm gear can be adjusted to adjust the position of the clamping platform. This design ensures that the automatic clamping system can guarantee its clamping function for all liquid-cooled plate products, meeting the diverse needs of different liquid-cooled plate products.

[0025] VII. Localized stress design for flexible and precise operation: The stress plate is composed of high-strength iron plates. Each stress plate connects to three automatic clamping systems for the material bins, located at the lower left and lower right corners and the upper center of the stress plate, respectively. The stress plate provides localized stress. If the automatic clamping systems at the left and right corners (lower left and lower right corners) are in place, but the upper automatic clamping system is not yet in place, a forklift can be used to apply force to the upper center of the stress plate, causing the middle automatic clamping system to continue clamping until all bins are in place, resulting in more flexible and precise operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the liquid cooling plate of the present invention.

[0028] Figure 2 This is a cross-sectional view of the multifunctional liquid-cooled plate transport box device of the present invention.

[0029] Figure 3 This is a schematic diagram of the automatic clamping system for the material box of the present invention.

[0030] Figure 4 This is a top view of the multifunctional liquid-cooled plate transport box device of the present invention.

[0031] Figure 5 This is a side view of the multifunctional liquid-cooled plate transport box device of the present invention.

[0032] In the diagram: 1. Liquid cooling plate; 2. Material bin; 3. Force plate; 4. Discharge platform; 5. Forklift hole in the material bin; 6. Automatic clamping system for the material bin; 7. Protective pad; 601. Protective rubber pad; 602. Clamping platform; 603. Telescopic support frame; 604. Transmission gear; 605. Transmission worm gear; 606. Rack; 607. Rack lock hole; 608. Rack lock; 609. Connecting shaft; 610. Connecting rod. Detailed Implementation

[0033] 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.

[0034] like Figures 1 to 5As shown, a multifunctional liquid-cooled plate transport bin device includes a bin 2 with adjustable dimensions to accommodate different sizes of liquid-cooled plates. The bin 2 is equipped with an automatic clamping system for automatically clamping the liquid-cooled plates 1, and the bin 2 is also equipped with forklift holes for forklift operation. The device also includes a liquid-cooled plate 1, a load-bearing plate 3, a discharge platform 4, and a protective pad 7. The bin 2 is made of sheet metal by welding. The device includes 5 discharge platforms 4, 4 forklift holes for bin 2, 3 automatic clamping systems for bin 2, and 2 protective pads 7.

[0035] like Figures 1 to 5 As shown, this device uses a material box 2, made of welded sheet metal, as its basic frame, providing structural support for the entire transportation process. The size of the material box 2 is adjustable, allowing for corresponding adjustments based on the size of different water-cooled plates to accommodate the transportation needs of various specifications of liquid-cooled plates 1. Five material placement platforms 4 (one at each of the four corners of the box and one in the middle) are installed on the bottom of the box using expansion bolts and are made of hard plastic or rubber with a high coefficient of friction. The liquid-cooled plates 1 are placed on the material placement platforms 4. The high coefficient of friction of the material placement platforms 4 prevents the liquid-cooled plates 1 from sliding on the bottom of the box during transportation, and their material properties also provide a certain degree of cushioning protection for the bottom of the liquid-cooled plates 1. Two protective pads 7 are located at the bottom of the material box 2 to protect the protruding parts of the liquid-cooled plates 1 from collision damage during transportation. Three automatic material box clamping systems are installed on the material box 2, and a force-bearing plate 3 connects these three automatic material box clamping systems. The three automatic material box clamping systems are located at the lower left corner, lower right corner, and upper middle of the force-bearing plate 3, respectively. The automatic clamping system for the material bin includes a protective rubber gasket 601, a clamping platform 602, a telescopic support frame 603, a transmission gear 604, a transmission worm gear 605, a rack 606, a rack locking hole, a rack lock, a connecting shaft 609, and a connecting rod 610. The protective rubber gasket 601 is bolted to the clamping platform 602 to prevent direct contact between the clamping platform 602 and the liquid cooling plate 1, thus avoiding damage. The clamping platform 602 is mounted on the material bin 2 by two telescopic support frames 603, and its displacement is controlled by the transmission worm gear 605.

[0036] When the forklift applies an upward force to the load-bearing plate 3, the load-bearing plate 3 moves upward, and the connecting rod 610 transmits a downward force to the rack 606 through the connecting shaft 609. The downward movement of the rack 606 drives the transmission gear 604 to rotate, and the transmission gear 604 drives the transmission worm gear 605 to move into the material bin 2, causing the clamping platform 602 to tighten. The three automatic clamping systems of one material bin 2 simultaneously retract inward, thereby clamping the liquid cooling plate 1. After the liquid cooling plate 1 is fixed, the rack lock is manually inserted into the rack lock hole to fix the automatic clamping system and prevent the clamping from loosening due to vibration or other reasons during transportation. The transmission gear 604 can be quickly released. After the quick release is opened, the position of the transmission worm gear 605 can be adjusted, thereby adjusting the position of the clamping platform 602 to adapt to liquid cooling plates 1 of different shapes and sizes, ensuring the clamping effect. Forklift operating principle: The four forklift holes of the material bins 2 are made of high-strength steel plates and are welded to the four corners of the bottom of the material bins 2. The forklift forks can be inserted into the forklift holes of the material bin 2, which facilitates the handling, loading and unloading of the material bin 2 and improves transportation efficiency.

[0037] like Figures 1 to 5 As shown, the load-bearing plate 3 is composed of high-strength iron plate. One load-bearing plate 3 connects to three automatic clamping systems for the material bins. The three automatic clamping systems for the material bins are located at the lower left corner, the lower right corner, and the upper middle part of the load-bearing plate 3, respectively. The load-bearing plate 3 is subjected to localized force. If the automatic clamping systems for the material bins on the left and right sides (lower left and lower right corners) are in place, but the automatic clamping system for the material bins at the top is not in place, a forklift can be operated to apply force to the upper middle part of the load-bearing plate 3 so that the automatic clamping system for the material bins in the middle continues to clamp until all of them are in place.

[0038] The load-bearing plate 3 is made of high-strength iron plate, possessing sufficient strength and rigidity to withstand the external forces applied during forklift operation without significant deformation. One load-bearing plate 3 is simultaneously connected to three automatic clamping systems for the material bins. These three systems are respectively arranged at the lower left corner, lower right corner, and upper center of the load-bearing plate 3. This layout allows the load-bearing plate 3 to distribute the force reasonably among the three clamping systems when subjected to external forces.

[0039] When clamping the liquid cooling plate 1, the forklift applies an upward force to the force-bearing plate 3. Due to force transmission, this force is transmitted through the force-bearing plate 3 to the three automatic clamping systems for the material bins. Specifically, the force applied by the forklift causes the force-bearing plate 3 to move upward. The force-bearing plate 3, through its connection structure with the three automatic clamping systems for the material bins (such as connecting rod 610, although not shown in detail in the figure, a connection exists), transmits the force to relevant components in the clamping system (such as rack 606). For the automatic clamping system for the material bins, taking a common mechanical transmission structure as an example, when the force transmitted from the force-bearing plate 3 causes the rack 606 to move downward, the rack 606 drives the transmission gear 604, which in turn drives the transmission worm 605 to rotate. The rotational motion of the transmission worm 605 is converted into the linear motion of the clamping platform 602, causing the clamping platform 602 to tighten towards the material bin 2, thereby clamping the liquid cooling plate 1.

[0040] When the automatic clamping systems for the left and right (lower left and lower right corners) are in position, but the automatic clamping system for the upper part is not yet in position, the forklift is operated to apply force to the upper part of the load-bearing plate 3. At this time, the force on the upper part of the load-bearing plate 3 will be mainly transmitted to the automatic clamping system of the upper part, causing the rack 606 of the system to continue to move downward, driving the transmission gear 604 and the transmission worm 605 to move, thereby causing the clamping platform 602 in the middle to continue to tighten until all three automatic clamping systems of the load-bearing plates are in position, completing the stable clamping of the liquid cooling plate 1.

[0041] like Figures 1 to 5As shown, the feeding platform 4 is made of hard plastic or rubber with a high coefficient of friction. One hopper 2 has five feeding platforms 4: one at each of the four corners and one in the center. The feeding platforms 4 are installed on the bottom of the hopper using expansion bolts. The high coefficient of friction of the material gives the feeding platform 4 a high surface friction. When the liquid cooling plate 1 is placed on the feeding platform 4, a large static friction is generated between the feeding platform 4 and the liquid cooling plate 1, effectively preventing the liquid cooling plate 1 from sliding inside the hopper 2 due to vehicle bumps and shaking during transportation, thus avoiding damage from collisions or impacts with the inner wall of the hopper 2. One hopper 2 has five feeding platforms 4, one at each of the four corners and one in the center. This layout provides stable and uniform support for the liquid cooling plate 1. The four corner loading platforms 4 secure the four corners of the liquid cooling plate 1, while the central loading platform 4 supports the center of the liquid cooling plate 1, preventing it from sinking and deforming due to gravity. This ensures the shape stability and structural integrity of the liquid cooling plate 1 during transportation. The loading platforms 4 are installed at the bottom of the box using expansion bolts. These bolts firmly fix the loading platforms 4 to the bottom of the box 2, ensuring that they will not loosen or fall off due to vibration during transportation. This provides reliable support and anti-slip protection for the liquid cooling plate 1 at all times.

[0042] like Figures 1 to 5 As shown, the forklift holes in the material bin 2 are made of high-strength steel plate, possessing sufficient strength and rigidity to withstand the significant force generated when the forklift forks are inserted, as well as various stresses caused by the weight of the material bin 2 and the liquid-cooled plate 1 during handling and transportation. This ensures that no deformation or damage occurs during forklift operation. Each material bin 2 has four forklift holes, which are welded to the four corners of the bottom of the material bin 2. This layout allows the forklift to stably insert its forks from four directions during operation, evenly distributing the weight of the material bin 2 and the liquid-cooled plate 1. This ensures the balance of the material bin 2 during handling, preventing tilting or tipping due to a shift in the center of gravity. It also facilitates lifting, handling, loading, and unloading operations by the forklift, improving transportation efficiency.

[0043] like Figures 1 to 5As shown, the automatic clamping system for the material bin includes a protective rubber gasket 601, a clamping platform 602, a telescopic support frame 603, a transmission gear 604, a transmission worm gear 605, a rack 606, a rack locking hole, a rack lock, a connecting shaft 609, and a connecting rod 610. The protective rubber gasket 601 is bolted to the clamping platform 602, which is mounted on the material bin 2 by two telescopic support frames 603. The displacement of the clamping platform 602 is controlled by the transmission worm gear 605. When the forklift applies an upward force to the force plate 3, the force plate 3 moves upward, and the connecting rod 610 transmits a downward force to the rack 606 through the connecting shaft 609. The rack 606 moves downward, driving the transmission gear 604 to rotate. The transmission gear 604 drives the transmission worm gear 605 to move into the material bin 2, causing the clamping platform 602 to tighten. The clamping platform 602 is clamped within the material bin 2. The automatic clamping system of each material bin retracts inward to clamp the liquid cooling plate 1. After the liquid cooling plate 1 is fixed, the rack and pinion lock is manually inserted into the rack and pinion lock hole to fix the automatic clamping system. The transmission gear 604 can be quickly disassembled. After the transmission gear 604 is quickly disassembled, the position of the transmission worm 605 can be adjusted to adjust the position of the clamping platform 602.

[0044] like Figures 1 to 5As shown, the protective rubber gasket 601 is bolted to the clamping platform 602. Its function is to prevent direct contact between the clamping platform 602 and the liquid cooling plate 1 when clamping the liquid cooling plate 1, thus preventing scratches, collisions, or other damage to the surface of the liquid cooling plate 1. The clamping platform 602 is mounted on the material box 2 by two telescopic support frames 603. The telescopic support frames 603 provide stable support for the clamping platform 602 and allow the clamping platform 602 to move within a certain range. When the forklift applies an upward force to the load-bearing plate 3, the load-bearing plate 3 moves upward. The connecting rod 610 converts this upward force into a downward force transmitted to the rack 606 through the connecting shaft 609. When the rack 606 moves downward, the transmission gear 604 meshing with the rack 606 rotates accordingly. The transmission gear 604 then drives the transmission worm gear 605 to move into the material box 2. Since the displacement of the clamping platform 602 is controlled by the transmission worm gear 605, the movement of the transmission worm gear 605 causes the clamping platform 602 to tighten towards the inside of the material bin 2. One material bin 2 has three automatic clamping systems, which simultaneously tighten inwards, thereby achieving stable clamping of the liquid cooling plate 1 and preventing it from colliding with each other or with the inner wall of the material bin 2 due to shaking during transportation. After the liquid cooling plate 1 is fixed, the rack and pinion lock is manually inserted into the rack and pinion lock hole. The engagement of the rack and pinion lock with the rack and pinion lock hole restricts the movement of the rack 606, thus fixing the entire automatic clamping system and preventing the rack 606 from moving due to vibration or other reasons during transportation, which could loosen the clamping platform 602 and ensure that the liquid cooling plate 1 is always firmly clamped. The transmission gear 604 is quick-release. When it is necessary to adjust the position of the clamping platform 602 to accommodate liquid cooling plates 1 of different sizes or shapes, the transmission gear 604 can be quickly released. At this time, the transmission worm 605 is no longer constrained by the transmission gear 604, and its position can be manually adjusted. The change in the position of the transmission worm 605 will drive the clamping platform 602 to move, thereby realizing the adjustment of the position of the clamping platform 602. After the adjustment is completed, the transmission gear 604 can be reinstalled to restore the automatic clamping system to normal working condition.

[0045] like Figures 1 to 5 As shown, the protective pad 7, made of rubber or plastic, is located at the bottom of the material box 2. During transportation, the liquid cooling plate 1 may experience some shaking or displacement due to various reasons, and the protective pad 7 can provide cushioning and protection. When the liquid cooling plate 1 comes into contact with the bottom of the material box 2 or experiences a slight collision, the soft material of the protective pad 7 can absorb some of the impact force, reducing damage to the liquid cooling plate 1. At the same time, it can also prevent the liquid cooling plate 1 from directly rubbing against the hard surface of the bottom of the material box 2, protecting the surface quality of the liquid cooling plate 1.

[0046] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A multifunctional liquid-cooled plate transport bin device, characterized in that, Includes a material bin (2), a liquid cooling plate (1), a stress plate (3), a feeding platform (4), a protective pad (7), an automatic clamping system for the material bin (2), and a forklift hole for the material bin (2); The material box (2) has an adjustable size structure. The automatic clamping system of the material box (2) is set on the material box (2) for automatically clamping the liquid cooling plate (1). The forklift hole of the material box (2) is set on the material box (2) for forklift operation. The force plate (3) is connected to multiple automatic clamping systems of material boxes (2), and the multiple automatic clamping systems of material boxes (2) are located at different positions of the force plate (3); The feeding platform (4) is set inside the material box (2). Multiple feeding platforms (4) are set in one material box (2). The feeding platforms (4) are set at the four corners and the middle of the box. The feeding platform (4) is installed at the bottom of the box. The forklift holes of the bin (2) are located at the four corners of the bottom of the bin (2), and a bin (2) is provided with multiple bin (2) forklift holes; The automatic clamping system of the material box (2) includes a protective rubber pad (601), a clamping platform (602), a telescopic support frame (603), a transmission gear (604), a transmission worm gear (605), a rack (606), a rack (606) locking hole, a rack (606) insert lock, a connecting shaft (609), and a connecting rod (610); the protective rubber pad (601) is installed on the clamping platform (602), the clamping platform (602) is installed on the material box (2) through the telescopic support frame (603), and the displacement of the clamping platform (602) is controlled by the transmission worm gear (605); The protective pad (7) is located at the bottom of the material box (2).

2. The multifunctional liquid-cooled plate transport bin device according to claim 1, characterized in that, The load-bearing plate (3) is composed of high-strength iron plate. One load-bearing plate (3) is connected to three automatic clamping systems of material boxes (2). The three automatic clamping systems of material boxes (2) are located at the lower left corner, lower right corner and upper middle part of the load-bearing plate (3) respectively.

3. The multifunctional liquid-cooled plate transport bin device according to claim 2, characterized in that, The feeding platform (4) is made of hard plastic or rubber. Five feeding platforms (4) are set in one material box (2) and installed at the bottom of the box by expansion screws.

4. The multifunctional liquid-cooled plate transport bin device according to claim 3, characterized in that, The forklift holes of the bin (2) are made of high-strength steel plates and are installed at the four bottom corners of the bin (2) by welding.

5. The multifunctional liquid-cooled plate transport bin device according to claim 4, characterized in that, The protective rubber gasket (601) is bolted to the clamping platform (602).

6. The multifunctional liquid-cooled plate transport bin device according to claim 5, characterized in that, The protective pad (7) is made of rubber or plastic.

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