TPU (thermoplastic polyurethane) raw material conveying device

Abstract

The invention provides a TPU (thermoplastic polyurethane) raw material transportation device, and relates to the technical field of transportation and storage, the TPU raw material transportation device comprises a rectangular frame, and thermal insulation protection plates are mounted in openings in the upper end and the lower end of the rectangular frame; the heat insulation protection plate comprises upper and lower end metal plates, a rubber pad and upper and lower end protection plates, and the upper and lower end metal plates are welded with the rectangular frame. According to the TPU raw material conveying device, through the rectangular frame, the upper end metal plate, the lower end metal plate, the upper end protection plate, the lower end protection plate, the rubber pads, the side face metal plates, the side face protection plates, the pressure equalizing rubber bags and the buffering force unloading structures, when the top face, the bottom face and the peripheral side faces of a container are collided, the top face and the bottom face of the container are collided; the impact force can be uniformly distributed on the upper and lower end metal plates and the side surface metal plates, so that the deformation and even damage of the upper and lower end metal plates and the side surface metal plates are reduced, a heat preservation effect can be achieved, the influence of external environment temperature is reduced, and an internal TPU raw material is protected.

Description

Technical Field

[0001] The invention relates to the technical field of transportation and storage, and in particular to a TPU thermoplastic polyurethane raw material transportation device. Background Art

[0002] TPU (thermoplastic polyurethane) is a polymer elastomeric material, which is made by the reaction of diisocyanate (DI) and polyol (such as polyester diol or polyether diol). TPU material is widely used in industry because of its good elasticity, wear resistance, low temperature resistance, chemical resistance, heat resistance and thermoplastic processability.

[0003] During transportation, TPU raw materials are usually packed in boxes, which are then placed on vehicles or ships for transportation. In addition, TPU raw materials usually need to meet certain conditions during transportation, such as the need to control the temperature to a certain extent. At some extreme temperatures, the suitable transportation temperature range of TPU raw materials is approximately between -20°C and 40°C. This temperature range can ensure that the performance of the TPU material will not become too hardened and brittle due to too low temperature, nor will it soften, deform or degrade due to too high temperature. It is also necessary to prevent impact. When using vehicles for transportation, special vehicles may be used to transport it, but when using ships for transportation, most of the TPU raw materials are loaded in containers. Most of the current containers are formed by welding metal frames and iron sheets together, and their thermal insulation effect is poor. When the container is hit by external force, only one layer of iron sheet is easily damaged, which will affect the internal TPU raw materials. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a TPU thermoplastic polyurethane raw material transportation device.

[0005] The present invention provides a TPU thermoplastic polyurethane raw material transportation device, comprising a rectangular frame, wherein heat insulation protection plates are installed in the upper and lower openings of the rectangular frame; The heat insulation protection plate includes upper and lower metal plates, rubber pads and upper and lower protection plates, the upper and lower metal plates are welded to the rectangular frame, the upper and lower protection plates are slidably installed in the frame opening of the rectangular frame, and the rubber pads are located between the upper and lower protection plates and the upper and lower metal plates; Heat-insulating anti-collision plates are installed in the openings around the rectangular frame; The heat-insulating anti-collision plate includes a side metal plate, a side protective plate, a pressure-equalizing rubber bag and a buffering unloading structure. The side metal plate is connected to the rectangular frame. The side protective plate is slidably installed in the side opening of the rectangular frame. The buffering unloading structure is located on the side of the side protective plate close to the side metal plate. The buffering unloading structure is used to alleviate the impact force on the side protective plate. The pressure-equalizing rubber bag is located between the buffering unloading structure and the side metal plate.

[0006] Preferably, the buffer unloading structure includes a pressure dividing strip and a force-bearing plate; there are multiple pressure dividing strips, both sides of the pressure dividing strips are arranged with inclined surfaces, and the multiple pressure dividing strips are fixedly connected to the side of the side protective plate close to the pressure-equalizing rubber bag, and the force-bearing plate is located between the side protective plate and the pressure-equalizing rubber bag. The force-bearing plate is provided with a pressure dividing groove matched with the pressure dividing strip, and the number of the pressure dividing grooves is the same as the number of the pressure dividing strips and is arranged one-to-one.

[0007] Preferably, a placement groove connected to the pressure dividing groove is provided on the force bearing plate, a soft rubber strip is installed in the placement groove, and when the pressure dividing strip slides in the pressure dividing groove, the pressure dividing strip can squeeze the soft rubber strip.

[0008] Preferably, the buffer unloading structure also includes a soft hollow bag; the soft hollow bag is a cavity, and the cavity is filled with water, there is a gap between the side protection plate and the force-bearing plate, and the soft hollow bag is located in the gap between the side protection plate and the force-bearing plate.

[0009] Preferably, a storage groove is opened on the side of the vertical column in the rectangular frame, and a No. 1 pressure relief strip is slidably installed in the storage groove. A No. 1 spring is installed in the storage groove, and the No. 1 spring can make the No. 1 pressure relief strip have a tendency to move out of the storage groove.

[0010] Preferably, a connecting block is fixedly connected to the side of the force-bearing plate, and connecting columns are fixedly connected to both ends of the connecting block. Anti-drop holes that slide with the connecting columns are provided on the side metal plate and the side protective plate, and the ends of the two connecting columns that are far away from each other slide in the anti-drop holes on the side metal plate and the side protective plate respectively.

[0011] Preferably, each of the pressure-equalizing rubber bags has a cavity, a support column is installed in the cavity, and the cavity is filled with an ethanol solution.

[0012] Preferably, a hidden groove is provided on the side where the transverse columns of the rectangular frame are close to each other, a No. 2 pressure relief strip is slidably installed in the hidden groove, a No. 2 spring is installed in the hidden groove, and the No. 2 spring can make the No. 2 pressure relief strip have a tendency to move out of the hidden groove.

[0013] Preferably, an annular bag is provided on the outer periphery of the rubber pad, the annular bag is hollow, and the annular bag is filled with pressure relief liquid.

[0014] Preferably, the thickness of the annular bag is greater than the thickness of the rubber pad.

[0015] The TPU thermoplastic polyurethane raw material transportation device proposed by the present invention has the following beneficial effects: through the arranged rectangular frame, upper and lower metal plates, upper and lower protective plates, rubber pads, side metal plates, side protective plates, pressure-equalizing rubber bags and buffer unloading structures, when the top surface, bottom surface and surrounding sides of the container are impacted, the impact force can be evenly distributed to the upper and lower metal plates and the side metal plates, thereby reducing the deformation or even damage of the upper and lower metal plates and the side metal plates, and can also play a role in heat preservation, reduce the influence of the external environmental temperature, and protect the internal TPU raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a TPU thermoplastic polyurethane raw material transportation device proposed by the present invention.

[0017] Figure 2 The figure is a side sectional view of a TPU thermoplastic polyurethane raw material transportation device proposed by the present invention.

[0018] Figure 3 The figure is a side cross-sectional view of the upper and lower metal plates in a rectangular frame in a TPU thermoplastic polyurethane raw material transportation device proposed by the present invention.

[0019] Figure 4 The figure is a side cross-sectional view of a side metal plate in a rectangular frame in a TPU thermoplastic polyurethane raw material transportation device proposed by the present invention.

[0020] Figure 5 The present invention provides a schematic structural diagram of a side protection plate and a pressure dividing strip in a TPU thermoplastic polyurethane raw material transportation device.

[0021] Figure 6 This is a schematic structural diagram of a force-bearing plate in a TPU thermoplastic polyurethane raw material transportation device proposed in the present invention.

[0022] Figure 7 A TPU thermoplastic polyurethane raw material transportation device proposed by the present invention Figure 4 Enlarged view of point A in the middle.

[0023] Figure 8 The figure is a top view of a rectangular frame in a TPU thermoplastic polyurethane raw material transportation device proposed by the present invention.

[0024] Fig. 9A TPU thermoplastic polyurethane raw material transportation device proposed by the present invention Figure 8 Enlarged view of point B in the middle.

[0025] Fig.10 The present invention provides a cross-sectional view of a pressure-equalizing rubber bag in a TPU thermoplastic polyurethane raw material transportation device.

[0026] Fig.11 The present invention provides a schematic structural diagram of an annular bag in a TPU thermoplastic polyurethane raw material transportation device.

[0027] Fig.12 This is a force analysis diagram of the upper and lower end protective plates in a TPU thermoplastic polyurethane raw material transportation device proposed by the present invention when subjected to light force.

[0028] Fig.13 This is a force analysis diagram of a side protection plate in a TPU thermoplastic polyurethane raw material transportation device proposed in the present invention when subjected to force.

[0029] Fig.14 This is a force analysis diagram of the soft hollow bag of the side protection plate in the TPU thermoplastic polyurethane raw material transportation device proposed by the present invention when subjected to force.

[0030] In the figure: 1. rectangular frame; 2. upper and lower metal plates; 3. rubber pad; 4. upper and lower protective plates; 5. side metal plates; 6. side protective plates; 7. pressure-equalizing rubber bag; 8. pressure-dividing strip; 9. force-bearing plate; 10. pressure-dividing groove; 11. soft rubber strip; 12. soft hollow bag; 13. No. 1 pressure relief strip; 14. No. 1 spring; 15. connecting block; 16. connecting column; 17. No. 2 pressure relief strip; 18. No. 2 spring; 19. annular capsule. DETAILED DESCRIPTION

[0031] Reference Figure 1-Figure 14 The present invention provides a TPU thermoplastic polyurethane raw material transportation device, including a rectangular frame 1, wherein heat insulation protection plates are installed in the upper and lower openings of the rectangular frame 1; the rectangular frame 1 includes a rectangular frame structure formed by welding 4 vertical rods and 8 transverse rods, and the vertical rods and the transverse rods are square rods. In the prior art, the container is also composed of a rectangular frame 1 and 8 iron sheets, but the material of the iron sheet is metal, and the thermal conductivity is about 44 W / (m·K) at a temperature of 25 degrees Celsius. In extreme environments, the temperature in the container is easily affected by the external ambient temperature, thereby causing the internal TPU raw material to be affected by the temperature, thereby changing the performance of the TPU raw material; at the same time, when a single iron sheet is impacted by an external force, it is also easy to cause the iron sheet to deform or even break, causing the internal TPU raw material to be squeezed and damaged, or spilled out to cause trouble.

[0032] like Figure 2 , Figure 3 and Fig.12 As shown in, the heat insulation protection plate includes upper and lower metal plates 2, rubber pads 3 and upper and lower protection plates 4. The upper and lower metal plates 2 are welded to the rectangular frame 1, and the upper and lower protection plates 4 are slidably installed in the frame opening of the rectangular frame 1, and the rubber pads 3 are located between the upper and lower protection plates 4 and the upper and lower metal plates 2; when the upper and lower protection plates 4 are hit by external force, the upper and lower protection plates 4 will be displaced, squeezing the rubber pads 3, and the rubber pads 3 are squeezed and deformed, playing a buffering role. In addition, after the buffering effect of the rubber pads 3, the effective area acting on the upper and lower metal plates 2 becomes larger, thereby reducing the pressure on the upper and lower metal plates 2, thereby reducing the deformation or even damage of the upper and lower metal plates 2 caused by local impact, ensuring that the TPU raw material inside the container can be protected. In addition, the thermal conductivity of the rubber pads 3 is usually between 0.1 and 1.0 W / (m·K), the rubber pad 3 can effectively play a role in heat preservation, reducing the impact of the external environment temperature on the internal TPU raw material; when the rubber pad 3 is used alone as a buffer pad, the rubber pad 3 needs to be made into a hollow structure, and the inside of the rubber pad 3 is filled with ethanol solution (to reduce the density of the liquid and at the same time lower the freezing point of the solution to prevent freezing in a low temperature environment). When impacted, due to the characteristics of the liquid, the ethanol solution will evenly disperse the pressure to the surroundings (Pascal's law), so that the force contact surface of the upper and lower metal plates 2 is the entire surface. In addition, under the characteristics of the ethanol solution, part of the force of the rubber pad 3 is applied to the rectangular frame 1, thereby playing a certain unloading role, thereby reducing the deformation and damage of the upper and lower metal plates 2.

[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown in the figure, heat-insulating anti-collision plates are installed in the openings around the rectangular frame 1; the heat-insulating anti-collision plates include side metal plates 5, side protective plates 6, pressure-equalizing rubber bags 7 and buffer unloading structures. The side metal plates 5 are connected to the rectangular frame 1, and the side protective plates 6 are slidably installed in the side openings of the rectangular frame 1. The buffer unloading structure is located on the side of the side protective plates 6 close to the side metal plates 5. The buffer unloading structure is used to alleviate the impact force on the side protective plates 6. The pressure-equalizing rubber bags 7 are located between the buffer unloading structure and the side metal plates 5. In actual situations, the sides of the container are more susceptible to impact than the top surface of the container. The specific reasons are: the stacking of containers. On container ships, the containers Containers are usually stacked in multiple layers, which makes the sides of the containers the most in contact with each other. When the ship sways or encounters bad weather, the upper containers may hit the sides of the lower containers; ship swaying. During navigation, especially in bad weather conditions, the ship may sway and tilt greatly, which may cause collisions between containers, especially the sides of the containers; loading and unloading operations. During container loading and unloading, cranes or other loading and unloading equipment may accidentally hit the sides of containers, especially in busy ports. Operational errors or equipment failures during loading and unloading operations may cause collisions; ship structure, container The hull structure and hatch position of the container ship may make the side of the container more vulnerable to impact. For example, the beams and hatch edges of the hull may come into contact with the side of the container; ship collision. In extreme cases, if the ship collides with other ships, the side of the container may be directly hit; the fixing of the container. During the ship transportation, the top surface of the container is usually fixed, such as by corner locks and straps, which helps to reduce the risk of the top surface being hit, while the side may not be fixed in the same way, making the side more vulnerable to impact; in this solution, when the side protection plate 6 is hit by an external force, the side protection plate 6 is displaced by the force, and the force is transmitted to the buffer unloading structure. The impact force is buffered and unloaded by the buffer unloading structure, and the impact force perpendicular to the side protective plate 6 is unloaded in different directions, thereby reducing the vertical force, thereby reducing the force transmitted to the side metal plate 5, and providing better protection for the side metal plate 5. In addition, the role of the pressure-equalizing rubber bag 7 is similar to that of the rubber pad 3, which is to buffer and evenly distribute the pressure to various parts of the side metal plate 5, thereby reducing the local deformation or even damage of the side metal plate 5. The material of the pressure-equalizing rubber bag 7 is also rubber, and its thermal conductivity efficiency is lower than that of iron, so it can have a heat-insulating effect and reduce the influence of the external ambient temperature on the TPU raw material inside the container.

[0034] like Figure 2 , Figure 4 , Figure 5 , Figure 6 , Fig.13and Fig.14 As shown in, the buffer unloading structure includes a pressure dividing strip 8 and a force bearing plate 9; there are multiple pressure dividing strips 8, both sides of the pressure dividing strips 8 are inclined, and multiple pressure dividing strips 8 are fixedly connected to one side of the side protection plate 6 close to the pressure equalizing rubber bag 7, and the force bearing plate 9 is located between the side protection plate 6 and the pressure equalizing rubber bag 7. A pressure dividing groove 10 adapted to the pressure dividing strip 8 is opened on the force bearing plate 9, and the number of the pressure dividing grooves 10 is the same as the number of the pressure dividing strips 8 and is arranged one by one. A placement groove connected to the pressure dividing groove 10 is opened on the force bearing plate 9, and a soft rubber strip 11 is installed in the placement groove. When the pressure dividing strip 8 slides in the pressure dividing groove 10, the pressure dividing strip 8 can squeeze the soft rubber strip 11. The buffer unloading structure also includes a soft hollow bag 12; the soft hollow bag 12 is a cavity, and the cavity is filled with water, the water is an ethanol solution, there is a gap between the side guard plate 6 and the force plate 9, the soft hollow bag 12 is located in the gap between the side guard plate 6 and the force plate 9, a storage groove is provided on the side of the vertical column in the rectangular frame 1, a No. 1 pressure relief strip 13 is slidably installed in the storage groove, a No. 1 spring 14 is installed in the storage groove, the No. 1 spring 14 can make the No. 1 pressure relief strip 13 have a tendency to move out of the storage groove, when the side guard plate 6 is hit by an external force, the specific force analysis is as follows Fig.13 and Fig.14 As shown in , the side guard plate 6 transfers the pressure to the pressure dividing strip 8, and the pressure dividing strip 8 applies force to the inclined inner wall of the pressure dividing groove 10, generating an inclined force, which can be decomposed into a horizontal rightward force and a vertical force (this force squeezes the side of the pressure dividing groove 10, and a component force in the opposite direction is generated on the inner wall of the adjacent pressure dividing groove 10 to offset each other, so that the force received by the side guard plate 6 is more internally consumed when it is transmitted to the force-bearing plate 9, thereby reducing the force received by the force-bearing plate 9 in the horizontal direction). When the side guard plate 6 is displaced by force, while driving the pressure dividing strip 8 to move, it also squeezes the soft hollow bag 12, thereby squeezing the ethanol solution in the soft hollow bag 12, thereby evenly spreading the squeezing force to the surroundings, as shown in FIG. Fig.13 and Fig.14As shown in the figure, a vertical squeezing force is generated on the side of the dividing pressure strip 8, and a horizontal force is also generated on the No. 1 pressure relief strip 13, so that the No. 1 pressure relief strip 13 is retracted into the storage groove, so that the soft hollow bag 12 partially expands and enters the storage groove, so that the surface area of ​​the soft hollow bag 12 becomes larger, thereby reducing the pressure per unit area of ​​the soft hollow bag 12, thereby reducing the force applied to the force-bearing plate 9, so that the soft hollow bag 12 disperses the squeezing force, thereby reducing the force on the force-bearing plate 9, and at the same time, the dividing pressure strip 8 can also squeeze the soft rubber strip 11, and the soft rubber strip 11 is in the In this case, after being squeezed, it diffuses and moves in all directions. It is regarded as a liquid that can diffuse the squeezing force in all directions, thereby reducing the squeezing force of the pressure dividing strip 8 transmitted to the force-bearing plate 9, thereby reducing the force acting on the force-bearing plate 9. When the force-bearing plate 9 is displaced by force, the force-bearing plate 9 squeezes the pressure-equalizing rubber bag 7. After being squeezed, the pressure-equalizing rubber bag 7 evenly distributes the squeezing force of the force-bearing plate 9 to the side metal plate 5, thereby reducing the side metal plate 5 from being deformed or even damaged due to local force, thereby playing a protective role. In addition, pressure can also be applied to the side.

[0035] In actual situations, one side of the container is open, and one of the heat-insulating anti-collision plates is rotatably mounted on the rectangular frame, and the side metal plates 5 of the other three heat-insulating anti-collision plates are welded to the rectangular frame 1 or fixedly connected by existing technologies (such as bolt installation, riveting, etc.). The side metal plates 5 of the heat-insulating anti-collision plates serving as door panels are connected to the rectangular frame 1 by hinges and locks, and can be rotated by hinges. When the heat-insulating anti-collision plates are opened through the lock switch, it is necessary to ensure that the force-bearing plates 9, the side metal plates 5, the side protective plates 6, the pressure-equalizing rubber bags 7 and other components can be regarded as a whole and can be rotated at the same time, so that components will not fall off when opened, thereby reducing unnecessary trouble. Therefore, they need to be designed.

[0036] In actual conditions, a placement groove is provided on the side of the side metal plate 5, and the pressure-equalizing rubber bag 7 is located in the placement groove. At the same time, the force-bearing plate 9 also always slides in the placement groove. A connecting block 15 is fixedly connected to the side of the force-bearing plate 9, and connecting columns 16 are fixedly connected at both ends of the connecting block 15. Anti-drop holes that slide with the connecting columns 16 are provided on the side metal plate 5 and the side protective plate 6, and the ends of the two connecting columns 16 that are far away from each other slide in the anti-drop holes on the side metal plate 5 and the side protective plate 6, respectively. A cavity is opened in the pressure-equalizing rubber bag 7, and a support column is installed in the cavity. The cavity is filled with ethanol solution. The force-bearing plate 9, the side metal plate 5 and the side protective plate 6 are connected by a connecting block 15 and a connecting column 16, so that the force-bearing plate 9, the side metal plate 5 and the side protective plate 6 form a plate-like structure. When switching, the integrity can be ensured. When impacted, it can play a buffering and pressure-equalizing effect, reduce the local deformation or even damage of the side metal plate 5, and also play a role in heat preservation, reducing the influence of the external ambient temperature.

[0037] like Figure 1 , Figure 3 , Fig. 9 , Fig.11 and Fig.12As shown, a hidden groove is provided on one side of the transverse columns of the rectangular frame 1 where they are close to each other, a No. 2 pressure relief strip 17 is slidably installed in the hidden groove, a No. 2 spring 18 is installed in the hidden groove, and the No. 2 spring 18 can make the No. 2 pressure relief strip 17 have a tendency to move out of the hidden groove, and an annular capsule 19 is provided on the outer periphery of the rubber pad 3, the annular capsule 19 is hollow, and the annular capsule 19 is filled with a pressure relief liquid (ethanol solution), and the thickness of the annular capsule 19 is greater than the thickness of the rubber pad 3. In actual situations, when the top surface of the container is hit or the bottom surface is hit, the pressure relief liquid (ethanol solution) is filled in the annular capsule 19. When the upper and lower protective plates 4 are hit (stuck by foreign objects), they are displaced by force. Since the thickness of the annular capsule 19 is greater than that of the rubber pad 3, the annular capsule 19 is squeezed when the upper and lower protective plates 4 are displaced. Since the annular capsule 19 is hollow and filled with ethanol solution, the same principle as the rubber pad 3, the pressure-equalizing rubber bag 7 and the soft hollow bag 12 can evenly disperse the impact force on the upper and lower protective plates 4 to the surrounding positions of the upper and lower metal plates 2 (the anti-deformation capacity of the connection between the upper and lower metal plates 2 and the rectangular frame 1 is better than that of the upper and lower metal plates 2). The deformation resistance of the middle position of the metal plate 2 is stronger). At the same time, after being squeezed, the annular capsule 19 will also squeeze the No. 2 pressure relief strip 17 on the surrounding rectangular frame 1, so that the No. 2 pressure relief strip 17 is retracted in the hidden groove, and the annular capsule 19 expands into the hidden groove, the volume becomes larger, the surface area becomes larger, and the pressure is evenly distributed, so that the pressure per unit area becomes smaller, thereby reducing the pressure on the upper and lower metal plates 2, reducing the deformation or damage of the upper and lower metal plates 2. When the upper and lower protective plates 4 are forced to squeeze the annular capsule 19 and the deformation is the same as the thickness of the rubber pad 3, the upper and lower protective plates 4 will squeeze the annular capsule 19 and the rubber pad 3 at the same time, and also increase the force area of ​​the upper and lower metal plates 2, thereby reducing the deformation or even damage of the upper and lower metal plates 2. Because in this case, the force conditions of the annular capsule 19 and the rubber pad 3 are not the same, so there are differences in the unloading conditions. Most of the force acts on the surrounding positions of the upper and lower metal plates 2, and a small amount of force is transmitted from the rubber pad 3 to the middle position of the upper and lower metal plates 2, thereby protecting the upper and lower metal plates 2.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A TPU thermoplastic polyurethane raw material transportation device, characterized in that: It comprises a rectangular frame (1), wherein heat insulation protection plates are installed in openings at both upper and lower ends of the rectangular frame (1); The heat insulation protection plate comprises upper and lower metal plates (2), a rubber pad (3) and upper and lower protection plates (4); the upper and lower metal plates (2) are welded to the rectangular frame (1); the upper and lower protection plates (4) are slidably mounted in frame openings of the rectangular frame (1); and the rubber pad (3) is located between the upper and lower protection plates (4) and the upper and lower metal plates (2); Heat-insulating anti-collision plates are installed in the openings around the rectangular frame (1); The heat-insulating anti-collision plate comprises a side metal plate (5), a side protective plate (6), a pressure-equalizing rubber bag (7) and a buffer unloading structure. The side metal plate (5) is connected to the rectangular frame (1). The side protective plate (6) is slidably installed in a side opening of the rectangular frame (1). The buffer unloading structure is located on a side of the side protective plate (6) close to the side metal plate (5). The buffer unloading structure is used to alleviate the impact force on the side protective plate (6). The pressure-equalizing rubber bag (7) is located between the buffer unloading structure and the side metal plate (5).

2. A TPU thermoplastic polyurethane raw material transportation device according to claim 1, characterized in that: The buffer unloading structure comprises a pressure dividing strip (8) and a force bearing plate (9); the number of the pressure dividing strips (8) is plural, and both sides of the pressure dividing strips (8) are arranged with inclined surfaces. The plurality of pressure dividing strips (8) are fixedly connected to a side of the side protection plate (6) close to the pressure equalizing rubber bag (7), and the force bearing plate (9) is located between the side protection plate (6) and the pressure equalizing rubber bag (7). The force bearing plate (9) is provided with a pressure dividing groove (10) adapted to the pressure dividing strip (8), and the number of the pressure dividing grooves (10) is the same as the number of the pressure dividing strips (8) and is arranged in a one-to-one correspondence.

3. A TPU thermoplastic polyurethane raw material transportation device according to claim 2, characterized in that: The force-bearing plate (9) is provided with a placement groove which is in communication with the pressure dividing groove (10), and a soft rubber strip (11) is installed in the placement groove. When the pressure dividing strip (8) slides in the pressure dividing groove (10), the pressure dividing strip (8) can press the soft rubber strip (11).

4. A TPU thermoplastic polyurethane raw material transportation device according to claim 3, characterized in that: The buffer unloading structure further comprises a soft hollow bag (12); the soft hollow bag (12) is a cavity filled with water, a gap exists between the side protection plate (6) and the force-bearing plate (9), and the soft hollow bag (12) is located in the gap between the side protection plate (6) and the force-bearing plate (9).

5. A TPU thermoplastic polyurethane raw material transportation device according to claim 4, characterized in that: A storage groove is provided on the side of the vertical column in the rectangular frame (1), a No. 1 pressure relief strip (13) is slidably installed in the storage groove, a No. 1 spring (14) is installed in the storage groove, and the No. 1 spring (14) can make the No. 1 pressure relief strip (13) have a tendency to move out of the storage groove.

6. A TPU thermoplastic polyurethane raw material transportation device according to claim 1, characterized in that: A connecting block (15) is fixedly connected to the side of the force-bearing plate (9), and connecting columns (16) are fixedly connected to both ends of the connecting block (15). Anti-drop holes that slide with the connecting columns (16) are provided on the side metal plate (5) and the side protective plate (6), and the ends of the two connecting columns (16) that are far away from each other slide in the anti-drop holes on the side metal plate (5) and the side protective plate (6), respectively.

7. A TPU thermoplastic polyurethane raw material transportation device according to claim 1, characterized in that: The pressure-equalizing rubber bag (7) is provided with a cavity, a support column is installed in the cavity, and the cavity is filled with an ethanol solution.

8. A TPU thermoplastic polyurethane raw material transportation device according to claim 1, characterized in that: A hidden groove is provided on the side where the transverse columns of the rectangular frame (1) are close to each other. A No. 2 pressure relief strip (17) is slidably installed in the hidden groove. A No. 2 spring (18) is installed in the hidden groove. The No. 2 spring (18) can make the No. 2 pressure relief strip (17) have a tendency to move out of the hidden groove.

9. A TPU thermoplastic polyurethane raw material transportation device according to claim 1, characterized in that: An annular bag (19) is provided on the outer periphery of the rubber pad (3); the annular bag (19) is hollow and filled with a pressure relief liquid.

10. A TPU thermoplastic polyurethane raw material transportation device according to claim 9, characterized in that: The thickness of the annular bag (19) is greater than the thickness of the rubber pad (3).

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