A refrigerated vehicle ventilation structure

By installing partitions and ventilation pipes inside the refrigerated truck compartment, and combining this with electric expansion joints to control the ventilation holes, the problem of uneven ventilation in refrigerated trucks has been solved, achieving uniform ventilation and sealing in all areas of the compartment.

CN224490601UActive Publication Date: 2026-07-14

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-09-24
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Uneven ventilation in refrigerated trucks results in good ventilation in the cargo storage area but poor ventilation in other areas.

Method used

An inner compartment is installed inside the carriage to form a partition, and ventilation holes are evenly distributed through ventilation pipes and sliding seats. Combined with electric telescopic devices to control the opening and closing of the ventilation holes, uniform ventilation in each area is achieved.

Benefits of technology

It achieves uniform air exchange in all areas of the refrigerated compartment, avoids cargo obstruction, and improves air exchange efficiency and sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to refrigeration car ventilation technical field provides a refrigeration car ventilation structure, including the car body and the compartment, and install the ventilation pump in the front of compartment, the inside of compartment is equipped with the inner compartment, and forms the compartment between both, the inside of inner compartment is equipped with the air hole, the inside of compartment is equipped with the air pipe no.
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Description

Technical Field

[0001] This utility model relates to the field of ventilation technology for refrigerated trucks, and more specifically, to a ventilation structure for refrigerated trucks. Background Technology

[0002] A refrigerated truck is a vehicle specifically designed for transporting goods that require constant temperature storage. It uses a refrigeration system to keep the interior temperature of the vehicle lower than the exterior temperature, thereby ensuring that the goods remain fresh and refrigerated during transportation.

[0003] Currently, refrigerated trucks on the market use fans inside the ventilation ducts to achieve automatic ventilation. However, the ventilation ducts and fans are in fixed positions, and there are many goods in the truck bed, which causes the ventilation area to be concentrated in the part near the duct, while the ventilation effect in other areas is poor.

[0004] To address the aforementioned issues, this application proposes a ventilation structure for refrigerated trucks. Utility Model Content

[0005] The purpose of this invention is to provide a ventilation structure for refrigerated trucks, which solves the problem of uneven ventilation in refrigerated trucks in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A ventilation structure for a refrigerated truck includes a body and a compartment, and an air pump installed at the front of the compartment.

[0008] The interior of the carriage is provided with an inner compartment, and a partition is formed between the two. The inner compartment has ventilation holes.

[0009] The diaphragm is equipped with a vent pipe that extends from the front end to the rear end of the diaphragm.

[0010] The compartment is equipped with a second vent pipe, which is perpendicular to the first vent pipe and extends from the bottom of one side of the compartment to the bottom of the other side.

[0011] The lower end of the second vent pipe is fixed with a slide block, and the slide block has an air exchange hole that communicates with the air vent.

[0012] The front end of the diaphragm is equipped with a ventilation frame, which connects the ventilation pipe and the ventilation pipe 1.

[0013] An electric telescopic device is fixedly installed between the side of the ventilation frame and the front inner wall of the carriage.

[0014] Preferably, the ventilation tubes are arranged at equal intervals in the left-right direction in the upper region of the diaphragm and at equal intervals in the up-down direction in the side region of the diaphragm.

[0015] Preferably, the second vent pipe and the slide are arranged at equal intervals in the front-to-back direction within the diaphragm.

[0016] Preferably, the lower end of the second vent pipe is fixed with a branch pipe, which is fixedly connected to the slide, and the branch pipe is coaxial with the ventilation hole.

[0017] Preferably, the ventilation frame has a hollow structure with holes on the front and rear side walls, one side is connected to a ventilation pipe, and the other side is fitted with a coaxial telescopic pipe.

[0018] Preferably, the upper end of the air exchange pump is provided with an air exchange pipe extending in the left and right direction.

[0019] Preferably, one end of the telescopic tube is fixedly connected to the ventilation tube.

[0020] The beneficial effects of this utility model are:

[0021] By installing an inner compartment inside the carriage to form a partition, and then extending the first and second ventilation pipes and the slide into the interior of the partition, the various areas inside the carriage can be ventilated simultaneously through the ventilation holes, effectively avoiding obstruction by cargo and achieving uniform ventilation in different areas.

[0022] By sliding the sliding mount and applying thrust using an electric telescopic device, the alignment of the ventilation holes and air vents is controlled, enabling the rapid opening and closing of the ventilation channel and preventing external air or impurities from directly entering the interior of the carriage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the carriage structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the carriage of this utility model;

[0027] Figure 4 This is a schematic diagram of the combined structure of the first vent pipe, the second vent pipe, and the slide of this utility model;

[0028] Figure 5 This is a schematic diagram of the internal structure of the slide block of this utility model;

[0029] Figure 6This is a schematic diagram of the ventilation frame structure of this utility model;

[0030] The attached diagram lists the components represented by each number as follows:

[0031] In the diagram: 11. Vehicle body; 12. Carriage compartment; 121. Inner compartment; 1201. Chamber; 1202. Vent hole; 21. Air exchange pipe; 22. Air exchange pump; 23. Air exchange pipe one; 24. Air exchange pipe two; 241. Branch pipe; 25. Slide seat; 251. Air exchange hole; 26. Vent frame; 261. Telescopic pipe; 262. Electric telescopic device. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "opening", "top and bottom", "thickness", "top", "middle", "length", "inner" and "around" indicate the orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] A ventilation structure for refrigerated trucks is designed to uniformly ventilate all areas of the truck compartment. An inner compartment 121 is installed inside the truck compartment 12 to form a cavity 1201. Ventilation pipe 1 23, ventilation pipe 24 and slide 25 are then evenly distributed in the cavity 1201. The ventilation holes 251 and vent 1202 are connected to ventilate all areas of the truck compartment simultaneously, achieving a uniform ventilation effect.

[0035] In some embodiments, the specific structure of the refrigerated truck's ventilation system is as follows: Figure 1-6 As shown, it includes a body 11 and a carriage 12;

[0036] The inner compartment 121 is fixedly installed inside the carriage 12, forming a partition 1201 between the two;

[0037] The inner compartment 121 has a ventilation hole 1202 inside, which connects the interior space of the compartment 12 with the partition 1201.

[0038] It should be noted that the vents 1202 are evenly distributed in various areas of the carriage 12, covering the entire lateral and upper areas;

[0039] An air pump 22 is fixedly installed at the front of the carriage 12. An air pump 22 is connected to an air pipe 21 at its upper end, which extends to the left and right sides.

[0040] The movable ventilation mechanism includes a first ventilation pipe 23, a second ventilation pipe 24, and a slide 25, which are distributed in three areas: the upper end, the left side, and the right side of the diaphragm 1201.

[0041] Among them, the first ventilation pipe 23 is a pipe in the front-to-back direction, the second ventilation pipe 24 is a pipe in the left-to-right direction, and intersects the first ventilation pipe 23 perpendicularly. The slide 25 is located below the second ventilation pipe 24 and connects to the internal space.

[0042] It should be noted that ventilator 1 23 is the main ventilation pipe, and ventilator 2 24 is a laterally extended auxiliary ventilation pipe. Ventilator 2 24 is used to introduce air from outside into ventilator 1 23, or to disperse air from ventilator 1 23 outwards.

[0043] Furthermore, the slide 25 has an internal ventilation hole 251 with the same diameter as the vent hole 1202;

[0044] It should be noted that a branch pipe 241 is installed between the lower end of the second vent pipe 24 and the slide 25, forming a fixed connection and connecting the ventilation hole 251 to the second vent pipe 24.

[0045] In addition, a ventilation frame 26 is installed in the front end area of ​​the diaphragm 1201 in the front-back direction;

[0046] Ventilation frame 26 is fixedly connected to ventilation pipe 23 on one side and has internal space communication with it;

[0047] A ventilation frame 26 is fixedly installed on the other side between itself and the compartment wall;

[0048] It should be noted that a telescopic pipe 261 is also installed on the other side of the ventilation frame 26. It is a folded pipe structure, with one end passing through the compartment wall and fixedly connected to the ventilation pipe 21.

[0049] In addition, the two ends of the ventilation frame 26 extend to the two sides of the partition 1201 and are connected to each ventilation pipe 23 to transmit the air force generated by the air exchange pump 22 to each ventilation pipe 23.

[0050] It is understandable that the electric telescopic device 262, through its telescopic movement, drives the ventilation pipe 23 and the slide 25 to slide back and forth in the front and back directions via the ventilation frame 26, thereby aligning or separating the ventilation hole 251 and the ventilation hole 1202.

[0051] Some publicly available information describes the specific usage of the ventilation system in refrigerated trucks as follows:

[0052] S1. Start the air pump 22. The suction force is diffused to the left and right areas through the air pipe 21. The wind force is transmitted to the interior of the ventilation frame 26 in multiple areas by using the connection between the telescopic pipe 261 and the air pipe 21.

[0053] S2, the suction force inside the ventilation frame 26 is transmitted to both ends of the area again, and enters the ventilation frame 26 located in the areas on both sides of the partition 1201, and then enters the interior of the ventilation tube 23.

[0054] S3. Start the electric telescopic device 262 to push the ventilation frame 26 backward, thereby driving the slide 25 to move backward, so that the ventilation hole 251 is aligned with the ventilation hole 1202.

[0055] S4. The suction force transmitted inside the ventilation tube 23 diffuses to the rear end of the ventilation tube 23 and is then transmitted laterally through the vertically connected ventilation tube 24.

[0056] S5. The suction force transmitted in the second ventilation pipe 24 enters the ventilation hole 251 in stages, and then acts on the interior of the carriage 12 through the ventilation hole 1202.

[0057] S6. Through the ventilation holes 1202 evenly distributed inside the inner compartment 121, a large number of dispersed channels are formed in the compartment wall, thereby achieving the effect of uniform ventilation in multiple areas.

[0058] S7. After ventilation is completed, the electric expansion joint 262 pulls back or pushes the ventilation frame 26 again, causing the ventilation hole 251 and the ventilation hole 1202 to be misaligned, thereby blocking the ventilation hole 1202 and achieving a sealing effect.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A ventilation structure for a refrigerated truck, characterized in that: Includes the body (11) and the carriage (12), as well as the air pump (22) installed in front of the carriage (12); The interior of the carriage (12) is provided with an inner compartment (121), and a partition (1201) is formed between the two. A ventilation hole (1202) is provided inside the inner compartment (121). The diaphragm (1201) is provided with a vent pipe (23) extending from the front end to the rear end of the diaphragm (1201); The diaphragm (1201) is provided with a second vent pipe (24), which is perpendicular to the first vent pipe (23) and extends from the bottom of one side of the diaphragm (1201) to the bottom of the other side; The lower end of the second ventilation pipe (24) is fixed with a slide (25), and the slide (25) has an air exchange hole (251) inside which communicates with the ventilation hole (1202); The front end of the partition (1201) is provided with a ventilation frame (26), which connects the ventilation pipe (21) and the ventilation pipe (23). An electric telescopic device (262) is fixedly installed between the side of the ventilation frame (26) and the front inner wall of the carriage (12).

2. The refrigerated truck ventilation structure according to claim 1, characterized in that: The ventilation tubes (23) are arranged at equal intervals in the left-right direction in the upper region of the diaphragm (1201), and at equal intervals in the up-down direction in the side region of the diaphragm (1201).

3. The refrigerated truck ventilation structure according to claim 2, characterized in that: The second vent pipe (24) and the slide (25) are arranged at equal intervals in the front-to-back direction within the cavity (1201).

4. The refrigerated truck ventilation structure according to claim 1, characterized in that: The lower end of the second ventilation pipe (24) is fixed with a branch pipe (241), which is fixedly connected to the slide (25). The branch pipe (241) is coaxial with the ventilation hole (251).

5. The ventilation structure for refrigerated trucks according to claim 1, characterized in that: The ventilation frame (26) is a hollow structure with holes on the front and rear side walls. One side is connected to the ventilation pipe (23), and the other side is fitted with a coaxial telescopic pipe (261).

6. The ventilation structure for refrigerated trucks according to claim 5, characterized in that: The upper end of the air pump (22) is provided with an air exchange pipe (21) extending in the left and right direction.

7. The refrigerated truck ventilation structure according to claim 6, characterized in that: One end of the telescopic tube (261) is fixedly connected to the ventilation tube (21).