Heat preservation door of new energy commercial refrigerator car

Abstract

The utility model relates to a new energy commercial refrigerator car thermal insulation door, which relates to the technical field of refrigerator car thermal insulation doors, and comprises a car rear door and a thermal insulation plate arranged on the inner side of the car rear door, the thermal insulation plate is connected with the car rear door through a connecting component, and the thermal insulation plate is provided with avoidance openings in one-to-one correspondence with protruding parts on the car rear door. The heat preservation plate is directly arranged on the inner side of the vehicle rear door, the heat preservation plate is completely opened or closed along with the vehicle rear door, normal goods taking and placing operation is not affected, the protruding part on the vehicle rear door is avoided through the avoiding opening, and the situation that the heat preservation performance is reduced due to the fact that the protruding part of the vehicle rear door ejects the heat preservation plate is avoided; according to the door-in-door structure of the refrigerator car, the heat preservation plate and the car rear door are designed into a whole, heat preservation and sealing can be achieved, the function of an original door before modification can be guaranteed, waste of the space occupied by the door-in-door in the car is reduced, meanwhile, the manufacturing cost is reduced, and therefore the heat preservation effect of the refrigerator car is improved, the cargo carrying space is increased, and the cargo taking and placing convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigerated truck insulation door technology, and in particular to an insulation door for a new energy commercial refrigerated truck. Background Technology

[0002] For new energy vehicles such as Chery Karry Jiangtun and Foton EV, which can only transport ordinary goods that do not require temperature preservation after leaving the factory, the common solution to the refrigerated and frozen transport problem of this type of vehicle is to modify the vehicle into a compartment with good airtightness and insulation with a refrigeration unit. The market often uses ordinary polyurethane or XPS materials combined with an insulated tailgate wall to create refrigerated trucks with insulated compartments. The insulated tailgate wall refers to an additional horizontally extending insulated wall and door on the inner wall of the compartment, near the original tailgate. However, the thickness of these insulation materials is generally over 70mm, resulting in a smaller internal volume of the insulated compartment compared to the original compartment. This reduces the cargo capacity per trip, increasing the per-item, per-trip transport cost and thus raising the overall cost of transporting goods. Furthermore, the insulated wall can only be partially opened through the insulated door, not fully, thus reducing the convenience of loading and unloading goods.

[0003] In related technologies, one can refer to the Chinese utility model patent with authorization announcement number CN212124973U, which discloses a refrigerated truck with double insulated doors. By adding an insulated roller shutter door inside the rear door of the truck body, the insulation effect is improved. However, this method has the same defects as the insulated rear door wall, which reduces the cargo space in the truck body. In addition, when loading and unloading goods, both the rear door and the roller shutter door need to be fully opened, which reduces the convenience of loading and unloading goods. Utility Model Content

[0004] In order to improve the insulation effect of refrigerated trucks, increase cargo space and improve the convenience of loading and unloading goods, this utility model provides an insulated door for new energy commercial refrigerated trucks.

[0005] This application provides a new energy commercial refrigerated truck insulation door, which adopts the following technical solution:

[0006] A new energy commercial refrigerated truck insulation door includes a rear door and an insulation panel disposed on the inside of the rear door. The insulation panel is connected to the rear door through a connecting component, and the insulation panel has clearance openings that correspond one-to-one with the protrusions on the rear door.

[0007] By adopting the above technical solution, the insulation panel is directly installed on the inside of the rear door. The insulation panel can be fully opened or closed along with the rear door without affecting the normal loading and unloading of goods. The protrusions on the rear door are avoided by using a clearance opening to prevent the protrusions from pushing the insulation panel out and reducing the insulation performance. The insulation panel and the rear door are designed as a whole, which can not only provide insulation and sealing but also ensure the function of the original door before the modification. This reduces the waste of interior space occupied by door-within-a-door construction and also reduces manufacturing costs. Therefore, it improves the insulation effect of the refrigerated truck, increases the cargo space, and improves the convenience of loading and unloading goods.

[0008] Optionally, the connecting assembly includes multiple rivet nuts and fixing bolts. The multiple rivet nuts are spaced apart on the side wall of the rear door facing the inside of the vehicle compartment. The fixing bolts correspond one-to-one with the rivet nuts. The fixing bolts are spaced apart on the insulation plate and are threadedly engaged with the corresponding rivet nuts.

[0009] By adopting the above technical solution, the insulation board is connected to the rear door of the vehicle as a whole through the cooperation of rivet nuts and fixing bolts, which improves the convenience and stability of the insulation board installation.

[0010] Optionally, the vehicle has two rear doors, which are rotatably disposed at the rear of the vehicle body. The insulation panels are two in number and correspond one-to-one with the rear doors and are disposed on the corresponding rear doors.

[0011] By adopting the above technical solution, the insulation panels correspond one-to-one with the rear doors of the vehicle, so that when goods need to be picked up or put down on one side, it is not necessary to open both rear doors at the same time, thereby improving the convenience of picking up and putting down goods and improving the insulation effect.

[0012] Optionally, the insulation board is rotatably provided with a support rod for support.

[0013] Optionally, the insulation board is provided with a connecting block, and a connecting rod is threadedly connected to the connecting block. The support rod is rotatably mounted on the connecting rod via a universal ball joint. An elastic clip is fixedly provided on the insulation board, and the elastic clip has a U-shaped slot, into which the support rod can be inserted.

[0014] By adopting the above technical solution, when the rear door is closed, the support rod is inserted into the slot for storage. When the rear door needs to be opened for a long time, the rear door is rotated to open the insulation plate, and then the support rod is moved out of the slot. The support rod is rotated through the universal ball joint and pressed against the vehicle body to support the rear door, thereby improving the convenience of loading and unloading goods.

[0015] Optionally, the insulation board has mounting holes, and the end of the elastic clip facing the insulation board has an elastic protrusion, which is interference-fitted with the mounting holes.

[0016] By adopting the above technical solution, the elastic clip is installed and positioned using elastic protrusions, which improves the convenience of installing and positioning the elastic clip, thereby improving the stability of the support rod storage.

[0017] Optionally, a sealing strip for sealing the rear door is provided between the joined edges of the two insulation panels.

[0018] By adopting the above technical solution, the two rear doors of the refrigerated truck are sealed with sealing strips, thereby improving the insulation effect of the refrigerated truck.

[0019] Optionally, one of the rear doors has a vertically extending mounting groove at one end near the sealing strip, the mounting groove containing a metal pressure plate for positioning the sealing strip.

[0020] By adopting the above technical solution, the metal pressure plate is used to install and position the sealing strip, and the mounting groove is used to avoid the metal pressure plate, thereby improving the sealing effect between the rear doors of the vehicle.

[0021] Optionally, the sealing strip is a T-shaped rubber strip, which includes an integrally formed vertical part and an arc-shaped part. The vertical part abuts against the closing edge of one of the insulation boards and extends toward the mounting groove. The metal pressure plate is L-shaped and its inner wall is pressed against the vertical part. The metal pressure plate has multiple rivets for positioning the vertical part. The arc-shaped part is located at the end of the vertical part away from the mounting groove and protrudes toward the inside of the vehicle. The vertical part is located in the middle of the arc-shaped part. When the rear door is closed, both insulation boards are pressed against the arc-shaped part.

[0022] By adopting the above technical solution, the vertical part of the rubber strip is pressed against one of the insulation boards, and then a metal pressure plate is pressed onto the vertical part. The metal pressure plate and the rubber strip are fixed by multiple rivets. The other rear door is rotated close to the rubber strip. When the rear door is fully closed, the two insulation boards are located on both sides of the vertical part and are pressed against the arc-shaped part. At the same time, the closing edges of the two rear doors are pressed together, and the arc-shaped part covers the gap between the two insulation boards. This achieves the installation and positioning of the rubber strip. The cooperation between the vertical part and the arc-shaped part improves the sealing effect between the two rear doors, thereby improving the insulation effect of the refrigerated truck.

[0023] Optionally, the insulation board is provided with a decorative strip on its outer periphery.

[0024] By adopting the above technical solution, the decorative strip protects the outer periphery of the insulation board, reducing wear on the outer periphery of the insulation board.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The insulation panel is directly installed on the inside of the rear door. The insulation panel can be fully opened or closed with the rear door without affecting the normal loading and unloading of goods. The protrusions on the rear door are recessed to avoid them pushing the insulation panel out and reducing the insulation performance. The insulation panel and the rear door are designed as a whole, which can not only keep the door insulated and sealed, but also maintain the function of the original door. This reduces the waste of interior space occupied by the door-within-a-door, and also reduces manufacturing costs. Therefore, it improves the insulation effect of the refrigerated truck, increases the cargo space, and improves the convenience of loading and unloading goods.

[0027] 2. By designing two rear doors, with insulation panels corresponding to each rear door, it is not necessary to open both rear doors simultaneously when loading or unloading goods from only one side, thereby improving the convenience of loading and unloading goods and enhancing the insulation effect.

[0028] 3. When the rear door of the vehicle needs to be opened for a long time, the support rod is rotated by the universal ball joint and pressed against the vehicle body to support the rear door, thereby improving the convenience of loading and unloading goods.

[0029] 4. Rubber strips are used to seal the joint edges of the insulation board, thereby improving the insulation effect of the refrigerated truck. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the installation of the rear door of the vehicle in this application;

[0031] Figure 2 This is a schematic diagram of the overall structure of the insulated door in this application;

[0032] Figure 3 This is an exploded view of the insulated door in this application;

[0033] Figure 4 This is a schematic diagram of the insulation board in this application;

[0034] Figure 5 yes Figure 4 A cross-sectional schematic diagram of AA in the middle;

[0035] Figure 6 yes Figure 5 Enlarged diagram of section B in the middle;

[0036] Figure 7 This is a schematic diagram of the support rod and elastic clamp in this application.

[0037] Reference numerals: 1. Rear door; 11. Mounting groove; 12. Metal pressure plate; 13. Clearance hole; 2. Insulation board; 21. Decorative strip; 22. Screw; 23. Connecting block; 24. Connecting rod; 25. Elastic clip; 251. Elastic protrusion; 26. Mounting hole; 27. Slot; 3. Connecting assembly; 31. Fixing bolt; 4. Protrusion; 41. Upper door lock; 42. Lower door lock; 43. Handle; 44. Necessary protrusion; 5. Clearance opening; 51. Upper notch; 52. Lower notch; 53. First side notch; 54. Second side notch; 6. Rubber strip; 61. Vertical part; 62. Arc-shaped part; 7. Support rod; 71. Universal ball joint. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0039] This application discloses an insulated door for a new energy commercial refrigerated truck.

[0040] Reference Figure 1 and Figure 2 A new energy commercial refrigerated truck insulation door includes a rear door 1 and an insulation plate 2 located inside the rear door 1. The insulation plate 2 is connected to the rear door 1 through a connecting component 3. The insulation plate 2 has clearance openings 5 ​​that correspond one-to-one with the protrusions 4 on the rear door 1.

[0041] Reference Figure 1 and Figure 2 There are two rear doors 1, which are rotatably located at the rear of the vehicle body. There are two insulation panels 2, which correspond one-to-one with the rear doors 1 and are installed on the corresponding rear doors 1. There are two connecting components 3, which correspond one-to-one with the insulation panels 2. The following description takes the rear door 1 located on the left side of the vehicle body as an example, and takes the side closer to the interior of the vehicle as the inner side and the side farther away from the vehicle as the outer side.

[0042] Reference Figure 2 and Figure 3 The rear door 1 has a vertically extending mounting groove 11 on the side wall of the closing edge. The protrusion 4 on the rear door 1 includes an upper door lock 41 located at the top of the rear door 1 and protruding inward, a lower door lock 42 located at the bottom of the rear door 1 and protruding inward, a handle 43 located in the mounting groove 11, and other necessary protrusions 44 located in the mounting groove 11 (which may be a side door lock or other inwardly protruding structures).

[0043] Reference Figure 2 , Figure 3 and Figure 4The insulation board 2 is made of non-metallic heat insulation material. Its shape needs to be designed according to the maximum size of the rear door 1 after it is closed. In this embodiment, the size of the insulation board 2 is slightly smaller than the size of the rear door 1. The clearance opening 5 includes an upper notch 51 corresponding to the upper door lock 41, a lower notch 52 corresponding to the lower door lock 42, a first side notch 53 corresponding to the handle 43, and a second side notch 54 corresponding to the necessary protrusion 44, so as to reduce interference with the protrusion 4 of the rear door 1. The thickness of the insulation board 2 is slightly greater than the protrusion height of the protrusion 4.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The connecting component 3 includes multiple rivet nuts and fixing bolts 31. The multiple rivet nuts are spaced apart on the inner wall of the rear door 1 (not shown in the figure). The fixing bolts 31 correspond one-to-one with the rivet nuts. The fixing bolts 31 are spaced apart on the insulation plate 2 and are threadedly engaged with the corresponding rivet nuts. During installation, the multiple rivet nuts are pre-embedded on the inner side of the rear door 1. The side of the insulation plate 2 closest to the rear door 1 is glued to the rear door 1 with adhesive. Finally, the fixing bolts 31 are threadedly engaged with the rivet nuts, making the insulation plate 2 and the rear door 1 a whole. This achieves both heat insulation and sealing while maintaining the original door function before modification, thereby reducing the waste of interior space occupied by door-in-door construction and also reducing manufacturing costs. In other feasible embodiments, heat insulation cotton can also be added between the insulation plate 2 and the rear door 1.

[0045] Reference Figure 2 , Figure 3 and Figure 5 A sealing strip for sealing the rear door 1 is provided between the opposing joining edges of the two insulation boards 2. The sealing strip is provided on one of the insulation boards 2. For ease of explanation, in this embodiment, the sealing strip is provided on the left insulation board 2. The inner side of the insulation board 2 partially covers the mounting groove 11. A metal pressure plate 12 for positioning the sealing strip is provided in the mounting groove 11 of the rear door 1 near the insulation board 2 where the sealing strip is located.

[0046] Reference Figure 2 , Figure 3 and Figure 6 The sealing strip is a T-shaped rubber strip 6, which includes an integrally formed vertical part 61 and an arc-shaped part 62. The vertical part 61 abuts against the closing edge of one of the insulation boards 2 and extends toward the mounting groove 11. The metal pressure plate 12 is L-shaped and its inner wall is pressed onto the vertical part 61. The metal pressure plate 12 has a plurality of rivets (not shown in the figure) for positioning the vertical part 61. Both the rubber strip 6 and the metal plate have clearance holes 13 corresponding to the first side notch 53 and the second side notch 54.

[0047] Reference Figure 2 , Figure 3 and Figure 6The arc-shaped part 62 is located at the end of the vertical part 61 away from the mounting groove 11 and protrudes towards the inside of the carriage. The vertical part 61 is located in the middle of the arc-shaped part 62. The other insulation plate 2 does not have a rubber strip 6 and a metal pressure plate 12 at its closing edge. When the rear door 1 needs to be closed, the left rear door 1 is closed first, and then the rear rear door 1 is rotated, which causes the right insulation plate 2 to abut against the arc-shaped part 62. At this time, the two insulation plates 2 are located on both sides of the vertical part 61. The arc-shaped part 62 covers the gap between the closing edges of the two insulation plates 2, thereby improving the sealing effect of the two rear doors 1.

[0048] Reference Figure 2 , Figure 3 and Figure 6 When installing the rubber strip 6, first apply adhesive to the opposite side walls of the vertical part 61, then attach one side wall of the vertical part 61 to the closing edge of one of the insulation boards 2, and then press the metal pressure plate 12 onto the other side wall of the vertical part 61, so that the two clearance holes 13 are aligned with the first side notch 53 and the second side notch 54 respectively. Then, the metal pressure plate 12 and the rubber strip 6 are connected by multiple rivets. In this embodiment, the rivets pass through the metal pressure plate 12 and connect to the vertical part 61. In other feasible embodiments, the rivets can also pass through the metal pressure plate 12 and the vertical part 61 and then connect to the insulation board 2.

[0049] Reference Figure 2 , Figure 3 and Figure 4 The outer periphery of the insulation board 2 is provided with a decorative strip 21. The decorative strip 21 is attached to the other edges of the insulation board 2 away from the rubber strip 6. The decorative strip 21 is made of flexible rubber or PVC. After applying adhesive to the connecting surface of the decorative strip 21, it is attached to the outer ring of the insulation board 2. The decorative strip 21 is not provided at the closed edge.

[0050] Reference Figure 2 , Figure 3 and Figure 7 Both insulation boards 2 are rotatably equipped with support rods 7 for support. The following description only takes the support rod 7 located on the inner wall of the left insulation board 2 as an example. The insulation board 2 is connected to the connecting block 23 by the screw 22. The connecting block 23 is threadedly connected to the connecting rod 24. The support rod 7 is L-shaped and one end is rotatably mounted on the connecting rod 24 through the universal ball joint 71.

[0051] Reference Figure 2 , Figure 3 and Figure 7An elastic clip 25 is fixed on the insulation board 2. The inner side wall of the insulation board 2 has a mounting hole 26. The end of the elastic clip 25 facing the insulation board 2 has an elastic protrusion 251. The elastic protrusion 251 is interference-fitted with the mounting hole 26. During installation, adhesive can be applied to the mounting hole 26 to improve the connection stability. The end of the elastic clip 25 away from the elastic protrusion 251 has a U-shaped groove 27. The support rod 7 can be inserted into the groove 27.

[0052] Reference Figure 2 , Figure 3 and Figure 7 When the rear door 1 is closed, the support rod 7 is inserted into the slot 27 for storage. When the rear door 1 needs to be opened for a long time, the rear door 1 is rotated to open the insulation plate 2, and then the support rod 7 is moved out of the slot 27. The support rod 7 is rotated through the universal ball joint 71 and pressed against the vehicle body to support the rear door 1, thereby improving the convenience of loading and unloading goods.

[0053] The working principle of this application embodiment is as follows:

[0054] The insulation panel 2 is directly installed on the inside of the rear door 1. The insulation panel 2 is fully opened or closed along with the rear door 1 without affecting the normal loading and unloading of goods. When only one side needs to be loaded or unloaded, it is not necessary to open both rear doors 1 at the same time, thereby improving the insulation effect. The protrusion 4 on the rear door 1 is recessed by the clearance opening 5 to avoid the protrusion 4 of the rear door 1 pushing the insulation panel 2 out and causing a decrease in insulation performance. The insulation panel 2 and the rear door 1 are designed as a whole. With the rubber strip 6, it can both insulate and seal and maintain the function of the original door before the modification. It reduces the waste of interior space occupied by the door-within-a-door and also reduces manufacturing costs. Therefore, it improves the insulation effect of the refrigerated truck, increases the cargo space, and improves the convenience of loading and unloading goods.

[0055] When the rear door 1 needs to be open for a long time, the support rod 7 is rotated by the universal ball joint 71 and pressed against the vehicle body to support the rear door 1, thereby improving the convenience of loading and unloading goods.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A new energy commercial refrigeration truck thermal insulation door, characterized in that: The utility model provides a kind of vehicle rear door and the heat preservation plate of heat preservation plate in vehicle rear door, vehicle rear door (1) and the heat preservation plate (2) of being arranged in the inner side of vehicle rear door (1), the heat preservation plate (2) is connected with vehicle rear door (1) by connecting assembly (3), the heat preservation plate (2) has with the protruding portion (4) on vehicle rear door (1) one-to-one corresponding to avoid mouth (5).

2. The new energy commercial refrigeration truck thermal insulation door according to claim 1, characterized in that: The connecting assembly (3) includes a plurality of pull rivet nuts and fixed bolts (31), a plurality of the pull rivet nuts are distributed on the side wall of the vehicle rear door (1) towards the inside of the vehicle compartment, the fixed bolt (31) corresponds to the pull rivet nut, the fixed bolt (31) is distributed on the heat preservation plate (2) and is threadedly engaged with the corresponding pull rivet nut.

3. The new energy commercial refrigeration truck thermal insulation door according to claim 1, characterized in that: The vehicle rear door (1) has two, and the two vehicle rear doors (1) are arranged at the tail of the vehicle body in opposite rotation, and the heat preservation plate (2) is two and corresponds to the vehicle rear door (1) and is arranged on the corresponding vehicle rear door (1).

4. The new energy commercial refrigeration truck thermal insulation door according to claim 3, characterized in that: A support rod (7) is rotatably arranged on the heat preservation plate (2) for supporting.

5. The new energy commercial refrigeration truck thermal insulation door according to claim 4, characterized in that: A connecting block (23) is arranged on the heat preservation plate (2), a connecting rod (24) is threadedly connected to the connecting block (23), the support rod (7) is rotatably arranged on the connecting rod (24) through a universal ball head (71), an elastic clamp (25) is fixedly arranged on the heat preservation plate (2), the elastic clamp (25) has a U-shaped clamping groove (27), and the support rod (7) can be clamped into the clamping groove (27).

6. The new energy commercial refrigeration truck thermal insulation door according to claim 5, characterized in that: The heat preservation plate (2) has a mounting hole (26), one end of the elastic clamp (25) towards the heat preservation plate (2) has an elastic protrusion (251), and the elastic protrusion (251) is interference-fitted with the mounting hole (26).

7. The new energy commercial refrigeration truck thermal insulation door according to claim 3, characterized in that: A sealing strip is arranged between the folded edges of the two heat preservation plates (2) for sealing the vehicle rear door (1).

8. The new energy commercial refrigeration truck thermal insulation door according to claim 7, characterized in that: One end of the vehicle rear door (1) near the sealing strip has a vertically extending mounting groove (11), and a metal pressing plate (12) is arranged in the mounting groove (11) for positioning the sealing strip.

9. The new energy commercial refrigeration truck thermal insulation door according to claim 8, characterized in that: The sealing strip is a T-shaped rubber strip (6), which includes an integral vertically extending portion (61) and an arc-shaped portion (62), the vertically extending portion (61) abuts against the folded edge of one of the heat preservation plates (2) and extends towards the mounting groove (11), the metal pressing plate (12) is L-shaped and has an inner wall pressing against the vertically extending portion (61), the metal pressing plate (12) has a plurality of rivets for positioning the vertically extending portion (61), the arc-shaped portion (62) is located at one end of the vertically extending portion (61) away from the mounting groove (11) and protrudes towards the inside of the vehicle compartment, and the vertically extending portion (61) is located at the middle of the arc-shaped portion (62), when the vehicle rear door (1) is in a closed state, the two heat preservation plates (2) abut against the arc-shaped portion (62).

10. The new energy commercial refrigeration truck thermal insulation door according to claim 7, characterized in that: A decorative strip (21) is arranged on the periphery of the heat preservation plate (2).

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