Hidden air duct device

Abstract

The utility model discloses a hidden air duct device, which belongs to the related technical field of refrigerated and insulated trucks and comprises a first air duct and a second air duct, the second air duct is arranged on one side of the first air duct, and air inlet covers are fixedly mounted on the outer surface of one end of the first air duct and the outer surface of one end of the second air duct. Exhaust hoods are fixedly mounted on the outer surfaces of the other ends of the first air duct and the second air duct, the first air duct and the second air duct are integrally of a flat structure, each of the first air duct and the second air duct comprises a plurality of groups of square pipes, the square pipes are connected end to end, and the square pipes are in butt joint and fixed through butt joint clamping sleeves; the two ends of the butt-joint clamping sleeve are each provided with a concentric-square-shaped clamping groove used in cooperation with the multiple sets of square pipes. A square pipe structure is used for replacing a traditional hose type air supply structure, air pipe swinging is effectively avoided, the air supply efficiency is improved, and the compartment space utilization rate can be effectively improved through hidden installation.

Description

Technical Field

[0001] This utility model belongs to the technical field of refrigerated and insulated vehicles, specifically a concealed air duct device. Background Technology

[0002] This concealed air duct device is an air duct structure installed on the roof of a refrigerated truck to transport cold air to the refrigerated truck. It is generally connected by a flexible air duct, which enables long-distance cold air transport inside the refrigerated truck.

[0003] Patent document CN201423902Y describes a concealed air duct inside a refrigerated truck. The purpose of this utility model is to design a concealed air duct inside a refrigerated truck that does not occupy the interior space of the refrigerated truck. The technical solution of this utility model is a concealed air duct inside a refrigerated truck, which includes a box body. An inner partition is fixed to the lower part of the outer partition at the top of the box body, with a gap between the two partitions. Air vents are opened on the inner partition of the box body.

[0004] The existing refrigerated truck air ducts are traditional exposed flexible air ducts. In this structure, the flexible air ducts sway during the air delivery process, resulting in poor air delivery capacity and low efficiency at the far end. Moreover, due to the limitation of the overall length of the vehicle, the heat exchange capacity at the rear of the compartment is slow, affecting the transport quality and causing a large temperature difference between the two ends of the compartment, making it impossible to cool the interior of the compartment evenly. At the same time, because the traditional air ducts are fixed to the top of the refrigerated truck compartment, the air ducts sag by about 150-200mm. This structure directly reduces the overall delivery capacity of the vehicle by 8-10%, and additional components are required to assist in the air delivery, increasing costs and failing to meet the requirements of lightweight design.

[0005] In summary, the existing soft air ducts oscillate during the air delivery process, resulting in poor air delivery capacity and low efficiency at the far end. Furthermore, due to the limitation of the overall vehicle length, the heat exchange capacity at the rear of the vehicle is slow, affecting the quality of transportation and causing a large temperature difference between the two ends of the vehicle, making it impossible to cool the interior of the vehicle evenly. Utility Model Content

[0006] This invention provides a concealed air duct device, which solves the problems of existing soft air ducts that oscillate during air delivery, resulting in poor air delivery capacity and low efficiency at distant ends; and the limitations imposed by the overall vehicle length, leading to slow heat exchange at the rear of the vehicle compartment, affecting transport quality, and causing a large temperature difference between the two ends of the compartment, resulting in uneven cooling inside the compartment.

[0007] A concealed air duct device includes a first air duct and a second air duct. The second air duct is disposed on one side of the first air duct. An air intake hood is fixedly installed on the outer surface of one end of both the first and second air ducts. An exhaust hood is fixedly installed on the outer surface of the other end of both the first and second air ducts. Both the first and second air ducts have a flat structure. Both the first and second air ducts include several sets of square tubes. The sets of square tubes are connected end to end and fixed together by connecting sleeves.

[0008] As a further technical solution of this utility model, both ends of the docking sleeve are provided with a U-shaped groove for use with several sets of square tubes, and both ends of the square tubes are provided with sealing strips. By using the docking sleeve, several sets of square tubes can be spliced ​​and fixed together, so that several sets of square tubes can be connected to form a first air duct and a second air duct.

[0009] As a further technical solution of this utility model, the inner side of the spiral groove is provided with several sets of inclined strips. One side of the outer surface of the inclined strip is inclined. The inclined strip is made of rubber material. By using the inclined strip, the sealing performance after the mating sleeve is mated can be improved. At the same time, the inclined strip with the inclined structure design can reduce the resistance when the mating sleeve is mated.

[0010] As a further technical solution of this utility model, an air intake fan is fixedly installed on the lower outer surface of the air intake cover. The air intake fan is installed at the front end of the air duct assembly to help improve the heat exchange capacity.

[0011] As a further technical solution of this utility model, a ventilation window is fixedly installed at the lower end of the exhaust hood, and the surface of the ventilation window is provided with several sets of strip-shaped slots.

[0012] As a further technical solution of this utility model, a first retainer is fixedly installed on the outer surface of one end of the exhaust hood and the air intake hood, and a second retainer is fixedly installed on the outer surface of the other end of the exhaust hood and the air intake hood. By using the first retainer and the second retainer, the exhaust hood and the air intake hood can be docked and fixed.

[0013] As a further technical solution of this utility model, the first card sleeve and the second card sleeve are both of the same shape. The outer surfaces of the first card sleeve and the second card sleeve are provided with sealing rings. The sealing rings can improve the sealing performance after the first card sleeve and the second card sleeve are connected.

[0014] As a further technical solution of this utility model, a sealing cover is installed at the lower part of both the first air duct and the second air duct, and the interior of the sealing cover is a hollow structure.

[0015] As a further technical solution of this utility model, one end of the sealing cover is provided with two sets of air inlet grooves. The air inlet grooves and the air inlet end of the air inlet cover are connected and fixed. By using the air inlet grooves, cold air can be transported to the interior of the first air duct and the second air duct, and discharged to the outside through the exhaust cover.

[0016] As a further technical solution of this utility model, the upper end of the sealing cover is provided with a carriage roof plate, and the sealing cover and the carriage roof plate are fixedly connected. The sealing cover plays a sealing and protection role for the first and second air ducts after installation, thereby improving their overall aesthetics.

[0017] The beneficial effects of this utility model are as follows: By setting up a first air duct and a second air duct, this utility model utilizes a square tube structure instead of a traditional flexible hose air supply structure when using this concealed air duct device, effectively avoiding air duct swaying and improving air supply efficiency. The concealed installation can effectively improve the utilization rate of the cargo compartment space. During the fabrication of the cargo compartment roof, the first and second air ducts of the air duct assembly are pre-embedded inside the cargo compartment roof. After the cargo compartment roof is completed, the air intake fan is installed at the lower part of the air intake hood to deliver cold air to the interior of the first and second air ducts and exhaust it outward through the exhaust hood. With the assistance of an electric fan, the remote air supply capacity and efficiency are enhanced, the temperature uniformity of the entire cargo compartment is good, and there are no dead corners in the remote air supply. Moreover, it is not limited by the length of the entire vehicle and does not affect the heat exchange capacity at the rear of the cargo compartment, thus improving the transportation quality and reducing the cargo damage rate. At the same time, unlike traditional air ducts that need to droop down by 150-200mm, this structure's air duct is hidden inside the cargo compartment roof, ensuring the original cargo compartment design's requirements for delivery capacity and meeting lightweight design standards.

[0018] By setting up docking sleeves, the use of the first and second air ducts in this concealed air duct device is optimized, allowing the length of the first and second air ducts to be adjusted arbitrarily according to the length of the carriage. Simultaneously, any number of air intake and exhaust hoods can be added, improving its flexibility in use. During operation, the docking sleeves allow for the splicing and fixing of several sets of square tubes, creating a continuous connection between them to form the first and second air ducts. The beveled retaining strips, made of rubber, improve the sealing performance after docking. The beveled design also reduces resistance during docking. The first and second sleeves allow for the docking and fixing of exhaust and air intake hoods, and exhaust and air intake hoods can be arbitrarily added between the two sets of square tubes, further enhancing its flexibility in use. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial structural diagram of the first air duct in this utility model;

[0022] Figure 3 This is an overall structural diagram of the air intake cover in this utility model;

[0023] Figure 4 This is a planar structural diagram of the docking sleeve in this utility model.

[0024] In the diagram: 1. Carriage roof; 2. Sealing cover; 3. First air duct; 4. Air intake cover; 5. Exhaust cover; 6. Ventilation window; 7. Air intake fan; 8. Air intake slot; 9. Second air duct; 10. Square tube; 11. Connecting sleeve; 12. Sealing strip; 13. First sleeve; 14. Second sleeve; 15. U-shaped groove; 16. Sloping strip. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1-4 As shown, a concealed air duct device includes a first air duct 3 and a second air duct 9. The second air duct 9 is located on one side of the first air duct 3. An air intake hood 4 is fixedly installed on the outer surface of one end of both the first air duct 3 and the second air duct 9. An exhaust hood 5 is fixedly installed on the outer surface of the other end of both the first air duct 3 and the second air duct 9. Both the first air duct 3 and the second air duct 9 have a flat structure. Both the first air duct 3 and the second air duct 9 include several sets of square tubes 10. The sets of square tubes 10 are connected end to end to each other and are fixed together by a docking sleeve 11.

[0027] Both ends of the docking sleeve 11 are provided with a U-shaped groove 15 for use with several sets of square tubes 10. Both ends of the square tube 10 are provided with sealing strips 12. By using the docking sleeve 11, several sets of square tubes 10 can be spliced ​​and fixed together, so that several sets of square tubes 10 can be connected to form the first air duct 3 and the second air duct 9.

[0028] The inner side of the U-shaped groove 15 is provided with several sets of inclined strips 16. One side of the outer surface of the inclined strip 16 is inclined. The inclined strip 16 is made of rubber material. The inclined strip 16 can improve the sealing performance after the mating sleeve 11 is mated. At the same time, the inclined strip 16 with the inclined structure design can reduce the resistance when the mating sleeve 11 is mated.

[0029] An air intake fan 7 is fixedly installed on the lower outer surface of the air intake shroud 4. The air intake fan 7 is installed at the front end of the air duct assembly to help improve the heat exchange capacity.

[0030] A ventilation window 6 is fixedly installed at the lower end of the exhaust hood 5, and the surface of the ventilation window 6 is provided with several sets of strip-shaped slots.

[0031] A first retainer 13 is fixedly installed on the outer surface of one end of the exhaust hood 5 and the air intake hood 4, and a second retainer 14 is fixedly installed on the outer surface of the other end of the exhaust hood 5 and the air intake hood 4. By using the first retainer 13 and the second retainer 14, the exhaust hood 5 and the air intake hood 4 can be docked and fixed.

[0032] The first ferrule 13 and the second ferrule 14 are both of the following: they are U-shaped structures. Both the outer surfaces of the first ferrule 13 and the second ferrule 14 are provided with sealing rings. The sealing rings can improve the sealing performance after the first ferrule 13 and the second ferrule 14 are connected.

[0033] Both the lower part of the first air duct 3 and the second air duct 9 are equipped with sealing covers 2, and the interior of the sealing covers 2 is a hollow structure.

[0034] Two sets of air inlet slots 8 are provided at one end of the sealing cover 2. The air inlet slots 8 and the air inlet end of the air inlet cover 4 are connected and fixed. By using the air inlet slots 8, cold air can be delivered to the interior of the first air duct 3 and the second air duct 9 and discharged to the outside through the exhaust cover 5.

[0035] The upper end of the sealing cover 2 is provided with the carriage roof plate 1, and the sealing cover 2 and the carriage roof plate 1 are fixedly connected. The sealing cover 2 plays a sealing and protection role for the first air duct 3 and the second air duct 9 after installation, and improves its overall aesthetics.

[0036] A concealed air duct device, by setting a first air duct 3 and a second air duct 9, utilizes a square tube 10 structure instead of a traditional flexible air supply structure during use, effectively preventing duct swaying and improving air supply efficiency. The concealed installation effectively improves the utilization rate of the vehicle compartment space. During the fabrication of the vehicle compartment roof panel 1, the first air duct 3 and the second air duct 9 of the air duct assembly are pre-embedded inside the vehicle compartment roof panel 1. After the roof panel is completed, the intake fan 7 is installed at the lower part of the intake hood 4 to deliver cool air to the first air duct 4. The air duct 3 and the second air duct 9 are exhausted outward through the exhaust hood 5. With the assistance of an electric fan, the air delivery capacity and efficiency at the far end are enhanced. The temperature uniformity of the entire cargo compartment is good, and there are no dead spots in the far-end air delivery. Moreover, it is not limited by the length of the vehicle and does not affect the heat exchange capacity at the rear of the compartment, thus improving the quality of transportation and reducing the damage rate. At the same time, unlike traditional air ducts that need to droop down by 150-200mm, this structure's air duct is hidden inside the top panel of the compartment, ensuring that the original compartment design meets the requirements for delivery capacity and complies with lightweight design standards.

[0037] By setting the docking sleeve 11, the use of the first air duct 3 and the second air duct 9 is optimized when the concealed air duct device is used. This allows the length of the first air duct 3 and the second air duct 9 to be adjusted arbitrarily according to the length of the carriage. At the same time, any number of air intake hoods 4 and exhaust hoods 5 can be added, improving its flexibility in use. During operation, the docking sleeve 11 can be used to splice and fix several sets of square tubes 10, so that several sets of square tubes 10 are connected to form the first air duct 3 and the second air duct 9. The inclined strip 16 is made of rubber material. The inclined strip 16 can improve the sealing performance after the docking sleeve 11 is docked. At the same time, the inclined strip 16 with its inclined structure design can reduce the resistance when the docking sleeve 11 is docked. The first sleeve 13 and the second sleeve 14 can be used to dock and fix the exhaust hood 5 and the air intake hood 4. The exhaust hood 5 and the air intake hood 4 can be added arbitrarily between the two sets of square tubes 10, improving its flexibility in use.

[0038] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A concealed air duct device, characterized in that, It includes a first air duct (3) and a second air duct (9). The second air duct (9) is located on one side of the first air duct (3). An air intake hood (4) is fixedly installed on the outer surface of one end of the first air duct (3) and the second air duct (9). An exhaust hood (5) is fixedly installed on the outer surface of the other end of the first air duct (3) and the second air duct (9). The first air duct (3) and the second air duct (9) are both flat in shape. The first air duct (3) and the second air duct (9) each include several sets of square tubes (10). The several sets of square tubes (10) are connected end to end to each other. The several sets of square tubes (10) are fixed together by a docking sleeve (11).

2. The concealed air duct device according to claim 1, characterized in that, Both ends of the docking sleeve (11) are provided with a spiral groove (15) for use with several sets of square tubes (10), and both ends of the square tube (10) are provided with a sealing strip (12).

3. The concealed air duct device according to claim 2, characterized in that, The inner side of the spiral groove (15) is provided with several sets of inclined strips (16), and one side of the outer surface of the inclined strips (16) is inclined.

4. A concealed air duct device according to claim 1, characterized in that, An air intake fan (7) is fixedly installed on the lower outer surface of the air intake shroud (4), and the air intake fan (7) is installed at the front end of the air duct assembly.

5. A concealed air duct device according to claim 1, characterized in that, The lower end of the exhaust hood (5) is fixedly installed with a ventilation window (6), and the surface of the ventilation window (6) is provided with several sets of strip-shaped slots.

6. A concealed air duct device according to claim 1, characterized in that, The exhaust hood (5) and the air intake hood (4) are both fixedly installed with a first retainer (13) on one end of their outer surface, and a second retainer (14) is fixedly installed on the other end of their outer surface.

7. A concealed air duct device according to claim 6, characterized in that, The first ferrule (13) and the second ferrule (14) are both of the following shapes: the first ferrule (13) and the second ferrule (14) are both provided with sealing rings on their outer surfaces.

8. A concealed air duct device according to claim 1, characterized in that, The lower part of the first air duct (3) and the second air duct (9) are both equipped with sealing covers (2), and the interior of the sealing covers (2) is a hollow structure.

9. A concealed air duct device according to claim 8, characterized in that, Two sets of air inlet slots (8) are provided at one end of the sealing cover (2), and the air inlet slots (8) and the air inlet end of the air inlet cover (4) are connected and fixed.

10. A concealed air duct device according to claim 9, characterized in that, The upper end of the sealing cover (2) is provided with a carriage roof plate (1), and the sealing cover (2) and the carriage roof plate (1) are fixedly connected.

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