Glass fiber reinforced plastic side plate and square tube frame combined container body

Abstract

The utility model discloses a glass fiber reinforced plastic side plate and square tube frame combined container body, and relates to the technical field of containers. Comprising two PVC plates, first square tube profiles are fixedly connected to the peripheral sides of the two PVC plates, and a main body frame adopts the standard first square tube profiles and second square tube profiles instead of metal plate bending pieces or parts customized through mold opening, so that the structural design is simplified, few devices are used, the manufacturing and maintenance cost is reduced, and the production efficiency is improved. Meanwhile, the requirements of various box body sizes can be flexibly matched, meanwhile, the main body frame is made of the first square tube sectional material and the second square tube sectional material, and therefore box body deformation caused by internal stress generated in the welding and cutting process is avoided conveniently; the structural design that the wallboards on the periphery and the top and bottom plates are welded through corner fittings after forming is adopted, so that the pulling strength is improved conveniently, full-load hoisting can be achieved, glass plates are adopted for the inner and outer skins, attractiveness, corrosion resistance and durability are achieved, and the heat preservation effect is better than that of metal skins.

Description

Technical Field

[0001] This utility model relates to the field of container technology, specifically to a container body composed of fiberglass side panels and square tube frame. Background Technology

[0002] With the rapid development of the cold chain logistics industry, refrigerated containers have become one of the important infrastructures and play an important role in various industries. As a facility specifically used for storing and keeping refrigerated goods, refrigerated containers have irreplaceable uses. Refrigerated containers are usually composed of two parts: an insulated container and a refrigeration unit. The insulated container, as an important component of the refrigerated container, plays a vital role.

[0003] However, currently, refrigerated container side panels are mostly made of steel plates and other metal materials. Although they have a certain strength and corrosion resistance, they are still easily corroded in harsh environments such as humid and high-salt maritime transport. Once the side panels are corroded, it will not only shorten the service life of the container, but also damage the insulation structure and reduce insulation performance. At the same time, metal side panels usually need to be painted after processing, which not only increases production steps and costs, but the paint layer may also peel off or crack due to wear, scratches, and aging during long-term use, affecting the appearance and protective effect, requiring regular maintenance and repainting. Secondly, in the traditional refrigerated container manufacturing process, many components rely on customization, which makes the processing steps complicated, difficult, and the production cycle long, which increases production costs and uncertainties in the production process. In addition, the painting process further prolongs the production cycle and increases the complexity of production management. Therefore, there is an urgent need for a container body that combines fiberglass side panels and square tube frames to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a container body composed of fiberglass side panels and square tube frame, in order to solve the problems mentioned in the background art, such as the low corrosion resistance and complex processing of traditional refrigerated container bodies, which, once corroded, not only shorten the service life of the container body, but also damage the insulation structure and reduce the insulation performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a container body combining fiberglass side panels and a square tube frame, comprising two PVC panels, each of which is fixedly connected to a first square tube profile on its periphery; two outer fiberglass panels are disposed between the two PVC panels; carbon steel connecting frames are fixedly connected to the periphery of each of the two outer fiberglass panels; the carbon steel connecting frames are fixedly connected to the first square tube profiles; a first polyurethane foam is fixedly connected to the surface of the PVC panels; a second polyurethane foam is fixedly connected to the sidewall of each outer fiberglass panel; a main fiberglass panel is fixedly connected to the bottom surface of the first polyurethane foam; an inner fiberglass panel is fixedly connected to the sidewall of each second polyurethane foam; two third polyurethane foams are disposed between the two PVC panels; a second square tube profile is fixedly connected to the periphery of each of the two third polyurethane foams; the second square tube profile is fixedly connected to the sidewall of the carbon steel connecting frame; a secondary fiberglass panel is fixedly connected to the sidewall of each third polyurethane foam; and an FRP panel is fixedly connected to the sidewall of each third polyurethane foam.

[0006] Preferably, a clearance groove is provided on the side wall of the FRP board on the left, and a door is provided on the inner wall of the clearance groove. Two hinges are fixedly connected to the side wall of the door, and the side walls of the two hinges are fixedly connected to the side wall of the FRP board. A sealing ring is fixedly connected to the side wall of the FRP board, and a sealing gasket is fixedly connected to the inner wall of the clearance groove.

[0007] Preferably, the side wall of the FRP board is fixedly connected to two limiting blocks, the side wall of the door is fixedly connected to two positioning blocks, the inner wall of the two positioning blocks is provided with movable columns, and the inner wall of the movable columns is fixedly connected to two limiting plates, the size of the limiting plates matching the size of the limiting blocks.

[0008] Preferably, a plurality of corner pieces are provided between the two PVC boards, the inner wall of the corner pieces is fixedly connected to the side wall of the first square tube profile, and the side wall of the corner pieces is fixedly connected to the side wall of the carbon steel connecting frame.

[0009] Preferably, the sidewall of the second polyurethane foam is provided with a plurality of clearance holes, and the inner wall of the clearance holes is fixedly connected with reinforcing steel.

[0010] Preferably, an anti-slip plate is fixedly connected to the surface of the main fiberglass plate, and the size of the anti-slip plate matches the size of the main fiberglass plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By using standard first and second square tube profiles for the main frame, instead of sheet metal bending parts or custom-made parts, the structural design is simplified, fewer equipment is required, and manufacturing and maintenance costs are reduced. It also allows for flexible matching of various box size requirements. Furthermore, using first and second square tube profiles for the main frame helps avoid internal stress during welding and cutting that could cause box deformation. Secondly, this product uses a split-type foaming process, with corner fittings used to weld the four side wall panels to the top and bottom panels after molding, thus improving tensile strength. Fully loaded lifting, the inner and outer skins are made of glass panels, which are not only aesthetically pleasing and corrosion-resistant, but also have better insulation performance than metal skins. Furthermore, the first, second, and third polyurethane foaming materials have a polyurethane thermal conductivity of 0.021 W / (m·K), which is better than traditional rock wool boards, improving the energy efficiency of cold storage. The secondary foaming process fills gaps, eliminates cold bridging, reduces heat conduction, and thus avoids heat loss. In addition, the door is embedded in the inner wall of the recessed groove, and the sealing gasket and sealing ring are pressed tightly by the door to ensure the sealing effect and prevent cold air leakage. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a partial cross-sectional view of the first square tube profile of this utility model;

[0015] Figure 3 This is a schematic diagram of the corner piece structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the movable column structure of this utility model;

[0017] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. PVC board; 2. First square tube profile; 3. Carbon steel connecting frame; 4. Outer fiberglass board; 5. First polyurethane foam; 6. Second polyurethane foam; 7. Main fiberglass board; 8. Inner fiberglass board; 9. Anti-slip plate; 10. Clearance hole; 11. Reinforcing steel; 12. Third polyurethane foam; 13. Second square tube profile; 14. Secondary fiberglass board; 15. FRP board; 16. Clearance groove; 17. Sealing gasket; 18. Door; 19. Hinge; 20. Limiting block; 21. Positioning block; 22. Movable column; 23. Sealing ring; 24. Limiting plate; 25. Corner piece. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 This utility model provides a container body composed of fiberglass side panels and a square tube frame, including two PVC panels 1. First square tube profiles 2 are fixedly connected to the periphery of each of the two PVC panels 1. Two outer fiberglass panels 4 are disposed between the two PVC panels 1. Carbon steel connecting frames 3 are fixedly connected to the periphery of each of the two outer fiberglass panels 4, and the carbon steel connecting frames 3 are fixedly connected to the first square tube profiles 2. First polyurethane foam 5 is fixedly connected to the surface of the PVC panels 1. Second polyurethane foam 6 is fixedly connected to the sidewall of the outer fiberglass panels 4. A main fiberglass panel 7 is fixedly connected to the bottom surface of the first polyurethane foam 5. An inner fiberglass panel 8 is fixedly connected to the sidewall of the second polyurethane foam 6. Two third polyurethane foam 12 are disposed between the two PVC panels 1. Second square tube profiles 13 are fixedly connected to the periphery of each of the two third polyurethane foam 12, and the second square tube profiles 13 are fixedly connected to the sidewall of the carbon steel connecting frames 3. The side wall of foam 12 is fixedly connected to a secondary fiberglass plate 14, and the side wall of the third polyurethane foam 12 is fixedly connected to an FRP plate 15. The main frame adopts standard first square tube profile 2 and second square tube profile 13, instead of sheet metal bending parts or custom-made parts, which simplifies the structural design, reduces the amount of equipment used, and lowers manufacturing and maintenance costs. At the same time, it can flexibly match the needs of various box sizes. In addition, the use of first square tube profile 2 and second square tube profile 13 in the main frame helps to avoid internal stress during welding and cutting, which could lead to box deformation. Secondly, the inner and outer skins are made of glass plates, which are not only beautiful but also corrosion-resistant and durable, and have better insulation performance than metal skins. Furthermore, the thermal conductivity of the first polyurethane foam 5, second polyurethane foam 6 and third polyurethane foam 12 is 0.021W / (m·K), which has better insulation performance than traditional rock wool boards and improves the energy efficiency of cold storage.

[0021] Furthermore, a clearance groove 16 is provided on the side wall of the left-side FRP board 15, and a door 18 is provided on the inner wall of the clearance groove 16. Two hinges 19 are fixedly connected to the side wall of the door 18, and the side walls of the two hinges 19 are fixedly connected to the side wall of the FRP board 15. A sealing ring 23 is fixedly connected to the side wall of the FRP board 15, and a sealing gasket 17 is fixedly connected to the inner wall of the clearance groove 16. The stepped door 18 and the clearance groove 16 achieve excellent sealing effect by pressing the sealing ring 23 and the sealing gasket 17, ensuring stable temperature inside the cold storage.

[0022] Furthermore, two limiting blocks 20 are fixedly connected to the side wall of the FRP board 15, and two positioning blocks 21 are fixedly connected to the side wall of the door 18. Movable columns 22 are inserted into the inner walls of the two positioning blocks 21, and two limiting plates 24 are fixedly connected to the inner walls of the movable columns 22. The size of the limiting plates 24 matches the size of the limiting blocks 20. The limiting blocks 20, positioning blocks 21 and movable columns 22 work together to make it easy to lock the door 18.

[0023] Furthermore, multiple corner pieces 25 are provided between the two PVC panels 1. The inner wall of the corner piece 25 is fixedly connected to the side wall of the first square tube profile 2, and the side wall of the corner piece 25 is fixedly connected to the side wall of the carbon steel connecting frame 3. Through the corner piece 25, the structural design of welding the surrounding wall panels and the top and bottom panels together after molding is made easier to improve the tensile strength and can be lifted under full load.

[0024] Furthermore, the sidewall of the second polyurethane foam 6 is provided with a plurality of clearance holes 10, and the inner wall of the clearance holes 10 is fixedly connected with reinforcing steel 11. The reinforcing steel 11 makes it easier to improve the overall strength of the second polyurethane foam 6.

[0025] Furthermore, an anti-slip plate 9 is fixedly connected to the surface of the main fiberglass plate 7. The size of the anti-slip plate 9 matches the size of the main fiberglass plate 7. The anti-slip plate 9 makes it safer for personnel to enter and operate goods.

[0026] Working Principle: The main frame utilizes standard first square tube profile 2 and second square tube profile 13, instead of sheet metal bending parts or custom-made molded parts. This simplifies the structural design, reduces the amount of equipment required, and lowers manufacturing and maintenance costs. It also allows for flexible matching of various box size requirements. Furthermore, the use of first square tube profile 2 and second square tube profile 13 in the main frame helps avoid internal stress during welding and cutting, which could lead to box deformation. Secondly, this product employs a split-type foaming process, where the four side wall panels are welded to the top and bottom panels using corner fittings 25 after molding, thus improving tensile strength. It can be lifted fully loaded. The inner and outer skins are made of glass panels, which are not only beautiful and corrosion-resistant but also durable. Moreover, the insulation effect is better than that of metal skins. Furthermore, the thermal conductivity of the first polyurethane foam 5, the second polyurethane foam 6, and the third polyurethane foam 12 is 0.021W / (m·K), which has a better insulation effect than traditional rock wool boards, improving the energy efficiency of cold storage. The gaps are filled by the secondary foaming process to eliminate the cold bridge phenomenon and reduce heat conduction, thereby avoiding heat loss. In addition, the door 18 is embedded in the inner wall of the recessed groove 16. The door 18 presses the sealing gasket 17 and the sealing ring 23 to ensure the sealing effect and prevent cold air leakage.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A container body composed of fiberglass side panels and a square tube frame, comprising two PVC panels (1), characterized in that: Two PVC panels (1) are fixedly connected to the periphery of each other with a first square tube profile (2). Two outer fiberglass panels (4) are provided between the two PVC panels (1). Carbon steel connecting frames (3) are fixedly connected to the periphery of each of the two outer fiberglass panels (4). The carbon steel connecting frames (3) are fixedly connected to the first square tube profile (2). A first polyurethane foam (5) is fixedly connected to the surface of the PVC panel (1). A second polyurethane foam (6) is fixedly connected to the side wall of the outer fiberglass panel (4). A main glass fiber is fixedly connected to the bottom surface of the first polyurethane foam (5). The sidewall of the second polyurethane foam (6) is fixedly connected to the inner fiberglass plate (8), and two third polyurethane foams (12) are arranged between the two PVC plates (1). The two third polyurethane foams (12) are fixedly connected to the periphery of the two third polyurethane foams (12). The second square tube profile (13) is fixedly connected to the sidewall of the carbon steel connecting frame (3). The sidewall of the two third polyurethane foams (12) is fixedly connected to the secondary fiberglass plate (14), and the sidewall of the third polyurethane foam (12) is fixedly connected to the FRP plate (15).

2. The container body combining fiberglass side panels and square tube frame according to claim 1, characterized in that: A clearance groove (16) is provided on the side wall of the FRP board (15) located on the left. A door (18) is provided on the inner wall of the clearance groove (16). Two hinges (19) are fixedly connected to the side wall of the door (18). The side walls of the two hinges (19) are fixedly connected to the side wall of the FRP board (15). A sealing ring (23) is fixedly connected to the side wall of the FRP board (15). A sealing gasket (17) is fixedly connected to the inner wall of the clearance groove (16).

3. The container body combining fiberglass side panels and square tube frame according to claim 2, characterized in that: Two limiting blocks (20) are fixedly connected to the side wall of the FRP board (15), and two positioning blocks (21) are fixedly connected to the side wall of the door (18). Movable columns (22) are inserted into the inner walls of the two positioning blocks (21), and two limiting plates (24) are fixedly connected to the inner walls of the movable columns (22). The size of the limiting plates (24) matches the size of the limiting blocks (20).

4. The container body combining fiberglass side panels and square tube frame according to claim 1, characterized in that: Multiple corner pieces (25) are provided between the two PVC boards (1). The inner wall of the corner piece (25) is fixedly connected to the side wall of the first square tube profile (2), and the side wall of the corner piece (25) is fixedly connected to the side wall of the carbon steel connecting frame (3).

5. The container body combining fiberglass side panels and square tube frame according to claim 1, characterized in that: The second polyurethane foam (6) has a plurality of clearance holes (10) on its sidewall, and the inner wall of the clearance holes (10) is fixedly connected with a reinforcing steel (11).

6. The container body combining fiberglass side panels and square tube frame according to claim 1, characterized in that: The surface of the main fiberglass plate (7) is fixedly connected with an anti-slip plate (9), the size of which matches the size of the main fiberglass plate (7).

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