Refrigerated truck container sealing and splicing heat preservation structure

Abstract

The application relates to the technical field of refrigerated trucks, in particular to a refrigerated truck container sealing and splicing heat preservation structure which comprises a plurality of box plates used for composing a closed container, the plurality of box plates comprise a plurality of side plates and front plates and tail door plates connected at the two ends of the side plates, the front plates are connected with the end portions of the plurality of side plates, the tail door plates are connected with the end portions of the side plates away from the front plates, the tail door plates can be opened by rotating, and connecting devices for connecting and fixing the front plates and the side plates and the side plates and the tail door plates are arranged on the container, the connecting devices comprise a plurality of fixing rods arranged at the connecting positions of any two adjacent box plates, the plurality of fixing rods are spliced and combined into a fixing frame in the shape of a stereoscopic rectangle, mounting ports for mounting the box plates are arranged on the fixing frame, and the box plates are fixed at the corresponding mounting ports. The application has the effects of improving the strength of the container and the sealing performance between the adjacent plates.

Description

Technical Field

[0001] This application relates to the technical field of refrigerated trucks, and in particular to a sealed and insulated structure for the cargo box of a refrigerated truck. Background Technology

[0002] Refrigerated trucks are a crucial piece of equipment in the low-temperature cold chain logistics. They are typically used to transport goods that need to be kept at low temperatures, such as food, pharmaceuticals, and other sensitive items. The reliability and stable performance of refrigerated trucks during refrigerated transport are key to ensuring the safety of perishable and fresh foods during transit. Therefore, the airtightness of refrigerated trucks is of paramount importance to ensuring the preservation and freshness of the food inside.

[0003] Currently, refrigerated trucks on the domestic market are mainly assembled using a "sandwich" method, with the left side panel, right side panel, top panel, bottom panel, and front panel forming the truck body. The joints between adjacent panels are secured by high-strength structural adhesive and aluminum profiles riveted together.

[0004] During the use of refrigerated and insulated trucks, the body of the truck body will be bumped and deformed during operation, which will cause the sealant at the joint between two adjacent panels to peel off, affecting the sealing performance of the refrigerated and insulated truck. In addition, rainwater will seep into the interior of the truck body from the joint between the side panels and the top panel, damaging the goods. Utility Model Content

[0005] In order to improve the connection strength between two adjacent panels of a refrigerated truck, this application provides a sealed splicing and heat-insulating structure for the cargo box of a refrigerated truck.

[0006] This application provides a sealed, spliced, and insulated structure for a refrigerated truck cargo box, which adopts the following technical solution:

[0007] A refrigerated truck cargo box sealing and insulation structure includes multiple box panels for forming a closed cargo box. Each box panel includes multiple side panels and a front panel and a tailgate panel connected to both ends of the side panels. The front panel is connected to the ends of the multiple side panels, and the tailgate panel is connected to the end of the side panel away from the front panel, and the tailgate panel can be rotated and opened. A connecting device is provided on the cargo box to connect and fix the front panel and side panels, as well as the side panels and tailgate panel. The connecting device includes multiple fixing rods located at the connection points of any two adjacent box panels. The multiple fixing rods are spliced ​​together to form a three-dimensional rectangular frame fixing bracket. The fixing bracket has mounting openings for installing the box panels, and the box panels are fixed at the corresponding mounting openings.

[0008] By adopting the above technical solution, when assembling and installing the cargo box, the fixed frame structure of the cargo box is first assembled and fixed by the set fixed rods, so that the fixed frame forms the support structure of the cargo box. Then, the corresponding box panels are installed at the corresponding installation openings and fixed to each fixed rod. The set fixed frame not only improves the structural strength of the cargo box and prevents cracks from forming between adjacent box panels after the cargo box is bumped, but also seals the gaps between adjacent box panels to prevent the cold air inside the cargo box from spreading.

[0009] Preferably, annular sealing strips are fixed at all four edges of the box panel, and the sealing strips are clamped between the fixing rod and the box panel.

[0010] By adopting the above technical solution, the sealing strip can fill the gaps generated during the installation process, preventing the cold air inside the cargo box from spreading to the outside of the cargo box, and thus playing a role in sealing and heat preservation.

[0011] Preferably, protective plates are fixed to the outward-facing sides of the side panels and front panels, and the four edges of the protective plates extend beyond the four edges of the box panels, and the four edges of the protective plates can overlap the fixing rods.

[0012] By adopting the above technical solution, the protective plate can first provide a layer of protection on the outer surface of the box panel to prevent damage to the box panel after a collision. In addition, the edge of the protective plate extends to the edge of the box panel. When the box panel is installed on the fixing frame, the four sides of the protective plate can overlap the corresponding fixing rods. After the box panel is installed, the outer surface of the box panel can be flush with the fixing rods, allowing the staff to observe whether the box panel is installed in place, thus improving the efficiency of box panel installation.

[0013] Preferably, the cross-section of the fixing rod is L-shaped, which includes a horizontal bar and a vertical bar. The horizontal bar extends outward toward the cargo box. An annular snap-fit ​​ring is fixed on the protective plate. The snap-fit ​​ring is located outside the sealing strip and can snap onto the vertical bar.

[0014] By adopting the above technical solution, when the box panel is installed onto the fixed frame, the snap ring can snap onto the vertical bar of the fixed rod. The snap ring not only makes the connection between the box panel and the fixed frame more secure, but also re-seals the gap between the box panel and the fixed rod, preventing cold air inside the cargo box from spreading outward.

[0015] Preferably, the connecting device further includes a fixing component disposed at the connection between any two adjacent box panels. The fixing component includes a fixing buckle disposed on a fixing rod and a pair of fixing screws disposed on the fixing buckle. The two ends of the fixing buckle are respectively connected to the snap rings of the two adjacent box panels, and the fixing screws pass through the fixing buckle and are tightened to the corresponding snap rings.

[0016] By adopting the above technical solution, after the box panel is installed on the fixing frame, the workers place the fixing buckle between the horizontal and vertical bars of the fixing rod, and align the two ends of the fixing buckle with the two adjacent snap rings. Then, the fixing screws are tightened onto the fixing buckle, so that the fixing screws are tightened and fixed onto the snap rings, thereby allowing the box panel to be firmly fixed on the fixing frame.

[0017] Preferably, multiple sets of the fixing members are evenly arranged on each fixing rod along its length.

[0018] By adopting the above technical solution, multiple sets of fixing components can be evenly arranged along the length of the fixing rod, and adjacent two box panels can be more firmly fixed to the fixing rod through multiple sets of fixing components.

[0019] Preferably, an L-shaped reinforcing rod is fixed at the splicing point of any two adjacent protective panels, and the same reinforcing rod is provided at the connection point between the protective panel and the fixing rod at the tailgate panel. Multiple reinforcing rods are spliced ​​together to form a reinforcing frame with a rectangular frame structure, and the reinforcing frame is fixed to the protective panel or to the fixing rod.

[0020] By adopting the above technical solution, the reinforcing rod can reinforce the cargo box from the outside and seal the joints of the box panels. The reinforcing rod is also fixed to the edges of two adjacent protective panels, thereby connecting and fixing the two adjacent protective panels.

[0021] Preferably, a closed filling gap is formed between the horizontal bar, the vertical bar, two adjacent protective plates, and the reinforcing bar, and the filling gap is used to fill the gap with polyurethane sealant for sealing.

[0022] By adopting the above technical solution, the polyurethane sealant has high tensile strength, excellent elasticity, wear resistance, oil resistance and cold resistance, and can re-seal the filling gap to prevent cold air from spreading outward.

[0023] Preferably, a sealing rod is fixed at the splicing point of the inner side of any two adjacent box panels, and the same sealing rod is fixed on the fixing rod located at the tailgate panel. The sealing rod is coated with sealant between the sealing rod and the box panel and the fixing rod, and multiple sealing rods are spliced ​​together to form a sealing frame structure.

[0024] By adopting the above technical solution, multiple sealing rods installed at the joint of two adjacent panels inside the cargo box can be spliced ​​together to form a sealing frame, thereby forming an internal sealing support inside the cargo box and a reinforcing support from inside the cargo box. In addition, the sealing rods can seal the gap between two adjacent panels.

[0025] Preferably, the tailgate panel is hinged to the reinforcing rod, and a sealing gasket is fixed at the position where the tailgate panel and the reinforcing rod are in contact.

[0026] By adopting the above technical solution, the sealing gasket can ensure that there is no gap between the tailgate panel and the reinforcing rod when the tailgate panel is closed, thus preventing the cold air inside the cargo box from spreading.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Through the installation of sealing frames, fixing frames, and reinforcing frames, a three-layer sealed support structure can be formed on the cargo box from the inside out. The fixing frames can serve as internal supports, making it convenient for workers to install and fix the box panels onto the fixing frames to form the initial cargo box structure. The reinforcing frames can connect and fix the protective edges of adjacent box panels after the box panels are installed. The sealing frames can fix the joints inside the cargo box after the cargo box is assembled, and initially seal the gaps from the inside of the cargo box, effectively preventing the diffusion of cold air inside the cargo box.

[0029] 2. The filling gap formed between the reinforcing rod, the fixing rod, and the edges of the two adjacent protective plates can be filled with polyurethane sealant, effectively sealing the locations where air leakage may occur through high-performance sealant. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 This is an exploded view illustrating the internal structure of the cargo box in an embodiment of this application.

[0032] Figure 3 This is a schematic diagram illustrating the box panel structure in an embodiment of this application.

[0033] Figure 4 yes Figure 2 Enlarged diagram of point A in the middle.

[0034] Explanation of reference numerals in the attached drawings: 1. Box panel; 11. Side panel; 12. Front panel; 13. Tailgate panel; 2. Connecting device; 21. Fixing frame; 211. Fixing rod; 2111. Horizontal bar; 2112. Vertical bar; 212. Mounting port; 22. Sealing strip; 23. Protective plate; 24. Snap ring; 25. Fastener; 251. Fixing buckle; 252. Fixing screw; 26. Reinforcing frame; 261. Reinforcing rod; 27. Filling notch; 28. Sealing frame; 281. Sealing rod; 29. ​​Sealing gasket. Detailed Implementation

[0035] The preferred embodiments described below are merely examples, and other obvious variations will be apparent to those skilled in the art. The basic principles of this invention as defined in the following description can be applied to other implementations, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this invention.

[0036] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0037] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0038] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0039] This application discloses a sealed and insulated structure for a refrigerated truck cargo box.

[0040] Reference Figure 1 and Figure 2 A refrigerated truck cargo box sealing and insulation structure includes multiple rectangular panel 1s. These panels can be assembled to form a cargo box for storing cold chain food. The cargo box can be installed on the vehicle body and is equipped with a cooling system that delivers cold air into the cargo box to maintain the food inside at a low temperature, facilitating long-distance transportation. In this embodiment, the cargo box has a rectangular structure. The multiple panel 1s include four rectangular side panels 11, a front panel 12, and a tailgate panel 13 connected to both ends of the side panels 11. The ends of the side panels 11 are connected to the perimeter of the front panel 12. The tailgate panel 13 is hinged at the rear of the cargo box for easy loading and unloading of goods.

[0041] Reference Figure 1 and Figure 2The cargo box is equipped with a connecting device 2 that assembles and fixes the front panel 12, multiple side panels 11, and tailgate panel 13. The connecting device 2 includes multiple fixing rods 211, which are set at the joints of any two adjacent panels 1. The four fixing rods 211 at the joints of the front panel 12 and the side panels 11, and the four fixing rods 211 at the joints of the tailgate panel 13 and the side panels 11 are all assembled into a planar rectangular frame. The four fixing rods 211 between two adjacent side panels 11 are set along the length of the side panels 11 and are positioned between the rectangular frames on the front panel 12 and the tailgate panel 13. Multiple fixing rods 211 are spliced ​​together to form a three-dimensional rectangular frame structure fixing frame 21. The spliced ​​fixing frame 21 is provided with mounting holes 212 for installing the front panel 12, side panels 11 and tailgate panel 13. During the splicing and assembly of the cargo box, the box panels 1 are installed at the corresponding mounting holes 212. The tailgate panel 13 is hinged on the fixing frame 21, allowing the tailgate panel 13 to be opened, thus facilitating loading. The fixing frame 21 can be set up with a three-dimensional frame on the cargo box, which not only improves the strength of the cargo box, but also allows the box panels 1 to be better fixed on the fixing frame 21, preventing cracks from appearing between adjacent box panels 1 after the cargo box is bumped.

[0042] Reference Figure 2 and Figure 3 Annular sealing strips 22 are fixed to the four edges of each side panel 11 and the four edges of the front panel 12. The sealing strips 22 are made of flexible material. During the installation of the side panels 11 and the front panel 12, the sealing strips 22 can be clamped between the edges of the fixing plate and the box panel 1. The sealing strips 22 fill the gaps generated during installation, preventing cold air inside the cargo box from diffusing to the outside, thus providing a sealing and insulation function. Protective plates 23 are fixed to the sides of the side panels 11 and the front panel 12 facing outwards. The area is larger than that of the corresponding side panel 11 and front panel 12, and the edges of the protective plate 23 extend beyond the edges of the corresponding side panel 11 and front panel 12. In addition, the edges of the protective plate 23 can overlap the fixing rod 211, so that after the box panel 1 is installed, the surface of the box panel 1 facing outward can be flush with the fixing rod 211. Therefore, during the installation of the corresponding box panel 1, the staff can observe whether the box panel 1 is installed in place, which not only improves the efficiency of installing the box panel 1, but also prevents the box panel 1 from falling into the cargo box during the installation process.

[0043] Reference Figure 2 and Figure 3The cross-section of the fixing rod 211 is L-shaped, including a horizontal rod 2111 and a vertical rod 2112. The vertical rod 2112 is fixed vertically to the edge of the horizontal rod 2111 facing the inside of the cargo box, and the horizontal rod 2111 extends outward from the cargo box. An annular snap-fit ​​ring 24 is fixed on the protective plate 23. The snap-fit ​​ring 24 is located outside the sealing strip 22, and there is an installation gap between the snap-fit ​​ring 24 and the sealing strip 22. When the box plate 1 is installed on the fixing frame 21, the snap-fit ​​ring 24 can snap onto the vertical rod 2112 of the fixing rod 211. The snap-fit ​​ring 24 not only makes the box plate 1 and the fixing frame 21 more firmly connected, but also re-seals the gap between the box plate 1 and the fixing rod 211 to prevent the internal cold air from diffusing outward.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The connecting device 2 also includes a fixing member 25 disposed on the fixing frame 21 for fixing the box panel 1 and the fixing frame 21. The fixing member 25 includes a fixing buckle 251 disposed on the fixing rod 211 and a pair of fixing screws 252 mounted on the fixing buckle 251. The fixing buckle 251 is disposed at any connection between the front panel 12 and the side panel 11 or at the connection between adjacent side panels 11, and both ends of the fixing buckle 251 are respectively connected to the corresponding snap rings 24. The fixing screws 252 pass through the fixing buckle 251 and are tightened to the corresponding snap rings 24. The fixing member 25 can firmly fix two adjacent box panels 1 to the fixing frame 21. Multiple fixing members 25 are evenly disposed on the corresponding fixing rod 211 along its length, so that each box panel 1 can be firmly fixed to the fixing frame 21.

[0045] An L-shaped reinforcing rod 261 is fixed at the connection point of any two adjacent protective plates 23. The same reinforcing rod 261 is set at the connection point between the edge of the protective plate 23 and the fixing rod 211 at the tailgate panel 13. Each reinforcing rod 261 is set opposite to each fixing frame 21. Multiple reinforcing rods 261 are spliced ​​together to form a rectangular frame structure of the reinforcing frame 26. Each reinforcing rod 261 on the reinforcing frame 26 is fixed to the protective plate 23 or the fixing rod 211 by screws, glue, or welding. However, it is not limited to the above three methods. Any other fixing method that can be achieved is acceptable. The reinforcing rods 261 can reinforce the cargo box from the outside and seal the splicing points of the box panels 1. A closed filling gap 27 can be formed between each reinforcing rod 261, each fixing rod 211 and the edges of two adjacent protective plates 23. Before installing the fixing reinforcing rod 261, the workers fill the filling gap 27 with polyurethane sealant (not shown in the figure). This sealant has high tensile strength, excellent elasticity, wear resistance, oil resistance and cold resistance, and can reseal the filling gap 27 to prevent cold air from spreading outward.

[0046] Reference Figure 2 , Figure 3 and Figure 4 A sealing rod 281 is fixed at the splicing point of any two adjacent inner sides of the cargo box 1. The sealing rod 281 is L-shaped. The same sealing rod 281 is fixed on the crossbar 2111 of the fixing rod 2111 located at the tailgate 13. Each sealing rod 281 is set in correspondence with each fixing rod 211. Multiple sealing rods 281 are spliced ​​together to form a rectangular frame structure sealing frame 28. During the installation process, sealant can be applied between the sealing rod 281 and the inner side of the cargo box 1 for sealing and fixing. The sealing rod 281 is fixed to the cargo box 1 by bolts, which improves the strength of the cargo box. The tailgate panel 13 is hinged to the reinforcing rod 261, and a sealing gasket 29 is fixed at the position where the tailgate panel 13 and the reinforcing rod 261 meet. When the tailgate panel 13 is closed, it can ensure that there is no gap between the tailgate panel 13 and the reinforcing rod 261, preventing the cold air inside the cargo box from spreading. Locking components (not shown in the figure) are provided on both tailgate panels 13 to lock them together. The tailgate panels 13 are locked to the reinforcing rod 261 by the locking components to prevent the tailgate panels 13 from being accidentally opened during the transportation of goods.

[0047] The implementation principle of the refrigerated truck cargo box sealing and splicing insulation structure in this application embodiment is as follows: the spliced ​​and assembled box panels 1 are connected by a fixing rod 211 to form a strong fixing frame 21 between adjacent box panels 1, allowing the box panels 1 to be installed on the fixing frame 21. The fixing frame 21 seals the gap between two adjacent box panels 1. The fixing member 25 set on the fixing rod 211 can connect and fix the two adjacent box panels 1. The L-shaped fixing rod 211 can form a filling notch 27 with the reinforcing rod 261. During the installation process, the filling notch 27 can be filled with waterproof polyurethane sealant to seal the gap between two adjacent box panels 1. The reinforcing rod 261 and the sealing rod 281 set on the outside and inside of the cargo box can simultaneously improve the strength and sealing of the cargo box.

[0048] Those skilled in the art should understand that the embodiments of the present invention described above are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the described principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A refrigerated vehicle container sealing and splice insulation structure, characterized by: The container includes multiple panels for forming a closed cargo box. Each panel includes multiple side panels and a front panel and a tailgate panel connected to both ends of the side panels. The front panel is connected to the ends of the multiple side panels, and the tailgate panel is connected to the end of the side panel away from the front panel. The tailgate panel can be rotated and opened. The cargo box is provided with a connecting device to connect and fix the front panel and side panels, as well as the side panels and tailgate panel. The connecting device includes multiple fixing rods set at the connection points of any two adjacent panels. The multiple fixing rods are spliced ​​together to form a three-dimensional rectangular frame fixing bracket. The fixing bracket is provided with mounting openings for installing the panels, and the panels are fixed at the corresponding mounting openings.

2. The refrigerated truck cargo box sealing and insulation structure according to claim 1, characterized in that: Annular sealing strips are fixed to all four edges of the box panel, and the sealing strips are clamped between the fixing rod and the box panel.

3. The refrigerated truck cargo box sealing and insulation structure according to claim 1, characterized in that: Protective plates are fixed to the outward-facing sides of the side panels and front panels. The edges of the protective plates extend beyond the edges of the box panels and can overlap the fixing rods.

4. The refrigerated truck cargo box sealing and insulation structure according to claim 3, characterized in that: The fixed rod has an L-shaped cross-section and includes a horizontal bar and a vertical bar. The horizontal bar extends outward toward the cargo box. An annular snap-fit ​​ring is fixed on the protective plate. The snap-fit ​​ring is located outside the sealing strip and can snap onto the vertical bar.

5. The refrigerated truck cargo box sealing and insulation structure according to claim 1, characterized in that: The connecting device also includes a fixing component set at the connection between any two adjacent box panels. The fixing component includes a fixing buckle set on the fixing rod and a pair of fixing screws set on the fixing buckle. The two ends of the fixing buckle are respectively connected to the snap rings of the two adjacent box panels. The fixing screws pass through the fixing buckle and are tightened to the corresponding snap rings.

6. The refrigerated truck cargo box sealing and insulation structure according to claim 5, characterized in that: The fasteners are arranged in multiple sets evenly along the length of each fastener rod.

7. The refrigerated truck cargo box sealing and insulation structure according to claim 3, characterized in that: An L-shaped reinforcing rod is fixed at the splicing point of any two adjacent protective panels. The same reinforcing rod is set at the connection point between the protective panel and the fixing rod at the tailgate panel. Multiple reinforcing rods are spliced ​​together to form a rectangular frame structure. The reinforcing frame is fixed to the protective panel or to the fixing rod.

8. The refrigerated truck cargo box sealing and insulation structure according to claim 4, characterized in that: The horizontal bar, vertical bar, two adjacent protective plates and reinforcing bar form a closed filling gap, which is used to fill the sealing polyurethane sealant.

9. The refrigerated truck cargo box sealing and insulation structure according to claim 1, characterized in that: A sealing rod is fixed at the splicing point of any two adjacent box panels. The same sealing rod is fixed on the fixing rod located at the tailgate panel. Sealing glue is applied between the sealing rod, the box panel, and the fixing rod. Multiple sealing rods are spliced ​​together to form a rectangular frame structure sealing frame.

10. A refrigerated truck cargo box sealing and insulation structure according to claim 1, characterized in that: The tailgate panel is hinged to the reinforcing rod, and a sealing gasket is fixed at the position where the tailgate panel and the reinforcing rod are in contact.

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