Back door heat preservation structure for refrigerator car

Abstract

The utility model relates to the technical field of refrigerator cars, and discloses a back door heat preservation structure for a refrigerator car, which comprises a left side compartment door support, a right side compartment door support is arranged on the right side of the left side compartment door support, and a left side heat preservation block and a right side heat preservation block are respectively arranged in inner cavities of the left side compartment door support and the right side compartment door support. A left front protection plate and a left rear protection plate are arranged on the front face and the back face of the left heat preservation block respectively. The left side fixing bolt and the right side fixing bolt are screwed off, at the moment, the left side rear baffle and the right side rear baffle can be drawn out of the left side frame body and the right side frame body respectively, and then the left side heat preservation block and the right side heat preservation block can be taken down from the left side compartment door support and the right side compartment door support respectively. Therefore, the problems that heat preservation cotton in a rear compartment door of an existing refrigerator car is inconvenient to disassemble, the whole compartment door needs to be disassembled during disassembly, then rivets on the periphery are disassembled, and time and labor are wasted in the process are solved.

Description

Technical Field

[0001] This utility model relates to the field of refrigerated vehicle technology, specifically to a rear door insulation structure for refrigerated vehicles. Background Technology

[0002] The main uses of refrigerated trucks include transporting chilled and fresh foods, special medicines, and cold drinks, ensuring that they are kept at a suitable temperature during transportation, thereby extending their shelf life and ensuring their quality.

[0003] The insulation cotton inside the rear door of existing refrigerated trucks is not easy to remove. To remove it, the entire door needs to be disassembled, and then the rivets around it need to be removed. This process is very time-consuming and laborious, and the insulation cotton cannot be replaced quickly. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a rear door insulation structure for refrigerated trucks, which has the advantages of a robust door structure and easy replacement of insulation cotton, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a rear door insulation structure for refrigerated trucks, including a left side door bracket, a right side door bracket on the right side of the left side door bracket, a left side insulation block and a right side insulation block respectively installed in the inner cavities of the left side door bracket and the right side door bracket, a left front protective plate and a left rear protective plate respectively provided on the front and back of the left side insulation block, a right front protective plate and a right rear protective plate respectively provided on the front and back of the right side insulation block, a left frame fixedly assembled on the back of the left side door bracket, and a right frame fixedly assembled on the back of the right side door bracket.

[0006] As a preferred embodiment of this utility model, a left connecting piece is fixedly mounted on the inner wall of the left side door bracket, a right connecting piece is fixedly mounted on the inner wall of the right side door bracket, a left front baffle is fixedly mounted on the front of the left side door bracket, a right front baffle is fixedly mounted on the front of the right side door bracket, a left hinge fixing hole is provided on the outer edge of both the left front baffle and the left connecting piece, and a right hinge fixing hole is provided on the outer edge of both the right front baffle and the right connecting piece.

[0007] As a preferred embodiment of this utility model, a left rear baffle is inserted into the inner cavity of the left frame, and a right rear baffle is inserted into the inner cavity of the right frame.

[0008] As a preferred technical solution of this utility model, the outer edges of the left rear baffle and the left door bracket are provided with left threaded holes, and the outer edges of the right rear baffle and the right door bracket are provided with right threaded holes. The inner walls of the left threaded holes and the right threaded holes are respectively threaded with left fixing bolts and right fixing bolts.

[0009] As a preferred embodiment of this utility model, a recessed sealing strip is fixedly fitted on the outer edge of the left side door bracket, and a raised sealing strip is fixedly fitted on the outer edge of the right side door bracket.

[0010] As a preferred embodiment of this utility model, the left and right insulation blocks are both made of polyurethane foam, and the left rear protective plate, left front protective plate, right front protective plate and right rear protective plate are all made of polycarbonate plastic.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The refrigerated truck uses a rear door insulation structure. By unscrewing the left and right fixing bolts, the left and right rear panels can be pulled out from the left and right frames respectively. Then, the left and right insulation blocks can be removed from the left and right door brackets respectively. This solves the problem that the insulation cotton inside the rear door of existing refrigerated trucks is inconvenient to disassemble. Disassembly requires disassembling the entire door and removing the rivets around it, which is very time-consuming and labor-intensive.

[0013] 2. The refrigerated truck uses a rear door insulation structure. By installing left and right rear protective plates on the back of the left and right door brackets, respectively, the left and right rear protective plates are made of relatively hard material, so that sharp objects in the box will not damage the left and right insulation blocks under the action of inertia. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the left and right side door brackets of this utility model;

[0017] Figure 4 This is a schematic diagram of the unfolded structure of this utility model;

[0018] Figure 5 This utility model Figure 4 A magnified structural diagram at point A in the diagram.

[0019] In the diagram: 1. Left side door bracket; 2. Right side door bracket; 3. Left side connecting piece; 4. Right side connecting piece; 5. Left side rear protective plate; 6. Right side rear protective plate; 7. Left side insulation block; 8. Right side insulation block; 9. Left side front protective plate; 10. Right side front protective plate; 11. Left side frame; 12. Right side frame; 13. Left side rear baffle; 14. Right side rear baffle; 15. Left side threaded hole; 16. Right side threaded hole; 17. Left side fixing bolt; 18. Right side fixing bolt; 19. Left side front baffle; 20. Right side front baffle; 21. Left side hinge fixing hole; 22. Right side hinge fixing hole; 23. Recessed sealing strip; 24. Raised sealing strip. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 - Figure 5 The refrigerated truck rear door insulation structure includes a left door support 1 and a right door support 2 on the right side of the left door support 1. A left insulation block 7 and a right insulation block 8 are respectively installed in the inner cavities of the left door support 1 and the right door support 2. A left front protective plate 9 and a left rear protective plate 5 are respectively provided on the front and back of the left insulation block 7. A right front protective plate 10 and a right rear protective plate 6 are respectively provided on the front and back of the right insulation block 8. A left frame 11 is fixedly mounted on the back of the left door support 1, and a right frame 12 is fixedly mounted on the back of the right door support 2. The left rear protective plate 5, right rear protective plate 6, left front protective plate 9, and right front protective plate 10 protect the left insulation block 7, and the left front protective plate 9 and right front protective plate 10 protect the right insulation block 8. The left rear protective plate 5, right rear protective plate 6, left front protective plate 9, and right front protective plate 10 improve the door's stability.

[0022] In a preferred embodiment, a left connecting piece 3 is fixedly mounted on the inner wall of the left side door bracket 1, and a right connecting piece 4 is fixedly mounted on the inner wall of the right side door bracket 2. A left front baffle 19 is fixedly mounted on the front of the left side door bracket 1, and a right front baffle 20 is fixedly mounted on the front of the right side door bracket 2. A left hinge fixing hole 21 is provided on the outer edge of both the left front baffle 19 and the left connecting piece 3, and a right hinge fixing hole 22 is provided on the outer edge of both the right front baffle 20 and the right connecting piece 4. The left hinge can be installed in the left hinge fixing hole 21, and the right hinge can be installed in the right hinge fixing hole 22.

[0023] In a preferred embodiment, a left rear baffle 13 is inserted into the inner cavity of the left frame 11, and a right rear baffle 14 is inserted into the inner cavity of the right frame 12. By inserting the left rear baffle 13 into the left frame 11, the left rear baffle 13 can be directly pulled out from the left frame 11. The right rear baffle 14 is inserted into the right frame 12, so that the right rear baffle 14 can be directly pulled out from the right frame 12. This makes it easy to disassemble the left rear baffle 13 and the right rear baffle 14.

[0024] In a preferred embodiment, the outer edges of the left rear baffle 13 and the left door bracket 1 are provided with left threaded holes 15, and the outer edges of the right rear baffle 14 and the right door bracket 2 are provided with right threaded holes 16. The inner walls of the left threaded holes 15 and the right threaded holes 16 are respectively threaded with left fixing bolts 17 and right fixing bolts 18. The left rear baffle 13 and the right rear baffle 14 are fixed by the left fixing bolts 17 and the right fixing bolts 18, respectively, so that the left rear baffle 13 and the right rear baffle 14 can be fixed by two bolts, making the left rear baffle 13 and the right rear baffle 14 easy to disassemble and install.

[0025] In a preferred embodiment, a recessed sealing strip 23 is fixedly fitted to the outer edge of the left door support 1, and a raised sealing strip 24 is fixedly fitted to the outer edge of the right door support 2. The recessed sealing strip 23 and the raised sealing strip 24 are used to seal the gap between the left door support 1 and the right door support 2. The raised part of the raised sealing strip 24 fits into the recessed part of the recessed sealing strip 23, so that the gap between the raised sealing strip 24 and the recessed sealing strip 23 can be better fitted.

[0026] In a preferred embodiment, both the left insulation block 7 and the right insulation block 8 are made of polyurethane foam. Polyurethane foam has excellent thermal insulation properties and a low thermal conductivity, the lowest among all insulation materials. Polyurethane foam also has moisture-proof, waterproof, and fire-resistant properties. The left rear protective plate 5, the left front protective plate 9, the right front protective plate 10, and the right rear protective plate 6 are all made of polycarbonate plastic. Polycarbonate plastic is a tough and transparent hard plastic with high impact resistance and temperature resistance.

[0027] Working principle: During use, the left insulation block 7 and the right insulation block 8 are installed in the left door bracket 1 and the right door bracket 2, respectively. Then, the left front protective plate 9 and the right front protective plate 10 are attached to the front of the left insulation block 7 and the right insulation block 8, respectively. Next, the left rear protective plate 5 and the right rear protective plate 6 are attached to the back of the left insulation block 7 and the right insulation block 8, respectively. Finally, the left front baffle 19 and the right front baffle 20 are fixed to the left door bracket 1 and the right door bracket 2, respectively. Then, the left rear baffle 13 and the right rear baffle 14 are inserted into the left frame 11 and the right frame 12, respectively. Then, the left rear baffle 13 and the right rear baffle 14 are fixed to the left door bracket 1 and the right door bracket 2, respectively, by the left fixing bolt 17 and the right fixing bolt 18. At this time, the left and right doors are installed.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold storage vehicle rear door heat preservation structure, comprising a left side door support (1), characterized in that: The right side of the left side door support (1) is provided with a right side door support (2), and the inner cavities of the left side door support (1) and the right side door support (2) are respectively provided with a left side heat preservation block (7) and a right side heat preservation block (8).

2. The rear door insulation structure for a refrigerated vehicle according to claim 1, characterized by: The inner wall of the left side door support (1) is fixedly provided with a left side connecting piece (3), the inner wall of the right side door support (2) is fixedly provided with a right side connecting piece (4), the front surface of the left side door support (1) is fixedly provided with a left side front baffle (19), and the front surface of the right side door support (2) is fixedly provided with a right side front baffle (20).

3. The rear door insulation structure for a refrigerated vehicle according to claim 1, characterized in that: The inner cavity of the left side frame body (11) is inserted with a left side rear baffle (13), and the inner cavity of the right side frame body (12) is inserted with a right side rear baffle (14).

4. The rear door insulation structure for a refrigerated vehicle according to claim 3, characterized in that: The outer edges of the left side rear baffle (13) and the left side door support (1) are both provided with left side threaded holes (15), the outer edges of the right side rear baffle (14) and the right side door support (2) are both provided with right side threaded holes (16), and the inner walls of the left side threaded holes (15) and the right side threaded holes (16) are respectively threadedly connected with left side fixing bolts (17) and right side fixing bolts (18).

5. The rear door insulation structure for a refrigerated vehicle according to claim 1, characterized by: The outer edge of the left side door support (1) is fixedly provided with a recessed sealing strip (23), and the outer edge of the right side door support (2) is fixedly provided with a protruding sealing strip (24).

6. The rear door insulation structure for a refrigerated vehicle according to claim 1, characterized by: The left side heat preservation block (7) and the right side heat preservation block (8) are both prepared by polyurethane foam, and the left side rear baffle (5), the left side front baffle (9), the right side front baffle (10) and the right side rear baffle (6) are all prepared by polycarbonate plastic.

Images