Carriage structure of heat preservation transfer trolley

By installing a ventilation system inside the carriage, cold air is drawn from the bottom to the top using an air pump impeller and a distribution pipe, solving the problem of uneven temperature inside the transfer carriage, achieving uniform refrigeration of quick-frozen corn kernels, and improving the overall insulation effect of the insulated transfer carriage.

CN224184358UActive Publication Date: 2026-05-01INNER MONGOLIA YUANOU FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA YUANOU FOOD CO LTD
Filing Date
2025-05-08
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing transfer wagons have poor insulation on the top and outer sealing of the boxes when transporting frozen corn kernels, resulting in uneven temperature and affecting storage performance.

Method used

A ventilation system is installed inside the carriage, which draws cold air from the bottom to the top through an air pump impeller and a distribution pipe to achieve uniform distribution of cold air. The combination of an outer insulation layer and an inner insulation layer is used to maintain temperature uniformity.

Benefits of technology

This improved the insulation effect of each layer of the sealed box inside the carriage, ensuring that the quick-frozen corn kernels are refrigerated evenly under the same conditions, and enhancing the overall insulation performance of the insulated transport carriage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heat preservation transfer truck carriage structure, which belongs to the technical field of heat preservation carriages and comprises a carriage bottom plate, a carriage frame is arranged at the top of the carriage bottom plate, a heat preservation mechanism is arranged in the inner wall of the carriage frame, and a ventilation mechanism is arranged in the inner wall of the top of the heat preservation mechanism. According to the utility model, the ventilation mechanism is arranged on the traditional heat-preservation transfer carriage, the four air distribution pipes at the periphery of the air pump impeller are utilized to pump air at the bottom in the carriage to the top from the four air pumping holes in the inner wall of the carriage frame, and then the air is sprayed into the top of the carriage through the holes in the bottom of the air pump impeller; the cold air at the bottom evenly covers the stacked sealing boxes, reasonable distribution and use of the internal cold air are kept, storage of the sealing boxes on the upper layer, the outer layer and the bottom layer in the same compartment heat preservation environment is facilitated, and the heat preservation effect of the compartment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of insulated vehicle compartment technology, and in particular to an insulated transfer vehicle compartment structure. Background Technology

[0002] Insulated containers are containers that rely on their own insulation devices to prevent heat exchange between the inside and outside of the container, thus maintaining a constant temperature inside. They are a general term for containers used to transport frozen, refrigerated, and insulated goods that require temperature control.

[0003] During processing, sweet corn kernels need to be quick-frozen to maintain their freshness. The quick-frozen kernels are then packaged in polyethylene plastic bags at -6°C, in 250g / bag or 500g / bag packages as needed. After packaging, the bags are sealed and boxed, and immediately transported to a cold storage facility for refrigeration.

[0004] When transporting frozen corn kernels in existing transfer vehicles, the sealed boxes are mostly piled up together. The cold air radiated by the frozen corn kernels sinks downwards, causing the air temperature at the top and bottom of the transfer vehicle to be different. In addition, the light temperature at the top and outside of the vehicle is stronger than that at the bottom. Therefore, with the same insulation structure in the vehicle, the sealed boxes at the bottom of the frozen corn kernels are better stored, while the sealed boxes at the top and outside are not as good for storage.

[0005] To address the aforementioned issues, an insulated transfer vehicle compartment structure is proposed. Utility Model Content

[0006] The main purpose of this utility model is to provide a structure for an insulated transport vehicle, which solves the problems mentioned in the background art.

[0007] The objective of this utility model can be achieved by adopting the following technical solution:

[0008] A refrigerated transport vehicle body structure includes a body floor, a body frame on the top of the body floor, a refrigeration mechanism in the inner wall of the body frame, and a ventilation mechanism in the top inner wall of the refrigeration mechanism.

[0009] The carriage frame includes a frame that is slidably connected to the carriage floor and a carriage baffle that is fixedly installed on the carriage floor;

[0010] The insulation mechanism includes an outer insulation layer and an insulation core embedded in the frame. A first inner insulation layer is pressed onto the outer wall of the carriage baffle by a slot, and a second inner insulation layer is pressed onto the inner wall of the insulation core by nails.

[0011] The ventilation mechanism includes a controller fixed to the top of the outer insulation layer. The bottom wire of the controller is connected to an air pump motor embedded in the insulation core. An air pump impeller is shaft-connected to the output end of the air pump motor. An air distribution pipe is connected around the outer wall of the air pump impeller and is connected to the internal cavity of the frame.

[0012] Furthermore, an air extraction hole is provided at the bottom of the internal cavity of the frame, and the air extraction hole also penetrates the second inner insulation layer. The air extraction hole is set in four groups, and reinforcing ribs are welded to both sides of the outer wall of the frame.

[0013] Furthermore, an air outlet cover is installed at the bottom of the air pump impeller, and the air outlet cover is set close to the top of the second inner insulation layer.

[0014] Furthermore, the top of the carriage floor is formed with a raised ridge, and several ventilation holes are provided through the raised ridge.

[0015] Furthermore, a sliding lock mechanism is also installed on both sides of the bottom of the frame. The sliding lock mechanism includes a locking rod that is rotatably connected to the outer wall of the frame. A locking handle is provided on one side of the locking rod and is used in conjunction with the locking handle and welded to the outer wall of the carriage baffle.

[0016] Furthermore, a sliding rod welded to the frame is provided directly below the locking rod, and a pulley is bolted to the bottom of the sliding rod. The pulley is slidably connected in a sliding track opened at the bottom of the carriage floor.

[0017] The beneficial technical effects of this utility model are as follows:

[0018] This invention incorporates a ventilation mechanism into a traditional insulated transport carriage. Four air distribution pipes around the air pump impeller draw air from four extraction holes in the inner wall of the carriage frame to the top of the carriage. The air is then sprayed into the top of the carriage through an opening at the bottom of the air pump impeller. This ensures that the cold air from the bottom evenly covers the stacked boxes, maintaining a reasonable distribution of internal cold air. This allows the upper, outer, and bottom layers of boxes to be stored in the same insulated environment, improving the overall insulation effect of the carriage. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of a preferred embodiment of the insulated transfer vehicle compartment structure according to the present utility model;

[0020] Figure 2 This is a right-side structural schematic diagram of a preferred embodiment of a thermal transfer vehicle compartment structure according to the present invention;

[0021] Figure 3 This is a bottom view schematic diagram of a preferred embodiment of the structure of a refrigerated transport vehicle according to the present invention;

[0022] Figure 4 This is an exploded view of the insulation mechanism components in a preferred embodiment of the insulation transfer vehicle compartment structure according to the present invention;

[0023] Figure 5 This is a schematic diagram of the ventilation mechanism in a preferred embodiment of the insulated transport vehicle compartment structure according to the present invention.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Carriage floor; 101. Raised ridge; 2. Carriage frame; 201. Frame; 202. Carriage baffle; 3. Insulation mechanism; 301. Outer insulation layer; 302. First inner insulation layer; 303. Insulation core; 304. Second inner insulation layer; 305. Reinforcing rib; 4. Ventilation mechanism; 401. Controller; 402. Air pump motor; 403. Air outlet hood; 404. Air extraction port; 405. Air pump impeller; 406. Air distribution pipe; 5. Sliding lock mechanism; 501. Sliding rod; 502. Locking rod; 503. Locking handle; 504. Slide rail; 505. Pulley. Detailed Implementation

[0026] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0027] like Figures 1-5 As shown, this embodiment provides a refrigerated transport vehicle body structure, including a body floor 1, a body frame 2 on the top of the body floor 1, an insulation mechanism 3 in the inner wall of the body frame 2, and a ventilation mechanism 4 in the top inner wall of the insulation mechanism 3; the body frame 2 includes a frame 201 slidably connected to the body floor 1 and a body baffle 202 fixedly installed on the body floor 1; the insulation mechanism 3 includes an outer insulation layer 301 and an insulation core 303 embedded in the frame 201, and the body baffle 202... A first inner insulation layer 302 is pressed onto the outer wall by a slot, and a second inner insulation layer 304 is pressed onto the inner wall of the insulation core 303 by nails. The ventilation mechanism 4 includes a controller 401 fixed to the top of the outer insulation layer 301. The bottom wire of the controller 401 is connected to an air pump motor 402 embedded in the insulation core 303. An air pump impeller 405 is shaft-connected to the output end of the air pump motor 402. A distribution pipe 406 is connected to the outer wall of the air pump impeller 405. The distribution pipe 406 is connected to the inner cavity of the frame 201.

[0028] In the above structure, the outer insulation layer 301 is a metal plate coated with reflective paint, the insulation core 303 is a fluorine-free polyurethane foam material, the first inner insulation layer 302 is 2-3mm thick and is arranged around the inner wall of the frame 201, the second inner insulation layer 304 is 5mm thick and is pressed tightly against one side of the outer wall of the frame 201 to maintain internal sealing, and both are made of foam board; the controller 401 has a battery inside, and the control switch is connected to the control room installed in the carriage for easy operation and control, and realizes internal gas circulation.

[0029] The bottom of the inner cavity of the frame 201 is provided with an air extraction hole 404, which also penetrates the second inner insulation layer 304. There are four sets of air extraction holes 404. The outer walls of the frame 201 are also welded with reinforcing ribs 305. The frame 201 is surrounded by four columns, and the columns have cavities inside. The bottom of the cavities is a ventilation structure. The reinforcing ribs 305 are used to improve the rigidity of the car body and keep the car body from being damaged when the sealing box is displaced and collapses.

[0030] An exhaust hood 403 is installed at the bottom of the air pump impeller 405. The exhaust hood 403 is set close to the top of the second inner insulation layer 304. The exhaust hood 403 distributes the cold air drawn in by the turbofan to the bottom of the car body and disperses it on the stacked seals, which helps the top seals and the outer seals to effectively resist the heat entering from the outside.

[0031] The top of the car floor 1 is formed with a raised ridge 101, and several ventilation holes are provided through the raised ridge 101. When storing the sealed box, the raised ridge 101 can reduce the contact with the ground, maintain the air circulation at the bottom, and facilitate the extraction hole 404 to extract and circulate the cold air at the bottom. At the same time, it also reduces the heat transfer from the car floor 1 to the sealed box.

[0032] The bottom sides of the frame 201 are also equipped with sliding lock mechanisms 5. The sliding lock mechanism 5 includes a locking rod 502 that is rotatably connected to the outer wall of the frame 201. A locking handle 503 is provided on one side of the locking rod 502 for use and welded to the outer wall of the carriage baffle 202. A sliding rod 501 welded to the frame 201 is provided directly below the locking rod 502. A pulley 505 is bolted to the bottom of the sliding rod 501. The pulley 505 is slidably connected in the slide rail 504 opened at the bottom of the carriage floor 1.

[0033] The above structure allows for quick and easy locking and assembly of the frame 201 and the carriage baffle 202.

[0034] The working principle of this device is as follows: When in use, the controller 401 has a built-in battery that is connected to the control terminal in the carriage control room, and the device is installed on common transport vehicles.

[0035] The slide bar 501, carrying the pulley 505, slides in the slide rail 504. The frame 201 slides on the bottom plate 1 of the carriage to one side of the bottom plate 1. The frozen corn kernels are sealed and loaded onto the bottom plate 1 of the carriage. The bottom layer of sealed boxes is placed on the raised ridge 101, and then they are stacked layer by layer until the interior space of the carriage is full. The pulley 505 slides in the opposite direction, and the frame 201 fits against the carriage baffle 202. The locking bar 502 rotates and engages with the locking handle 503, locking the frame 201 and the transfer can begin.

[0036] The air pump motor 402 drives the air pump impeller 405 to rotate. The four air distribution pipes 406 draw cold air from the bottom of the compartment to the air pump impeller 405 through the negative pressure from the inner wall cavity of the four pillars of the frame 201 and the air extraction hole 404 at the bottom. The air is then discharged from the bottom of the air pump impeller 405 to the top of the compartment, covering the top and outside of the sealed box. In this way, the cold air radiated by the quick-frozen corn kernels can be exchanged from the bottom to the top, realizing the rational distribution and use of cold air in the compartment.

[0037] Inside the carriage, the insulation mechanisms 3 on the top and outer sides receive the most heat from sunlight. Therefore, the above operation can further improve the insulation effect of the carriage, which is beneficial for storing the upper, outer, and bottom sealed boxes in the same carriage insulation environment, thus improving the insulation effect of the carriage.

[0038] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

Claims

1. A structure for an insulated transport vehicle compartment, comprising a compartment floor (1), characterized in that: The top of the carriage floor (1) is provided with a carriage frame (2), the inner wall of the carriage frame (2) is provided with a heat preservation mechanism (3), and the top inner wall of the heat preservation mechanism (3) is provided with a ventilation mechanism (4). The carriage frame (2) includes a frame (201) that is slidably connected to the carriage floor (1) and a carriage baffle (202) that is fixedly installed on the carriage floor (1). The insulation mechanism (3) includes an outer insulation layer (301) and an insulation core (303) embedded in the frame (201). A first inner insulation layer (302) is pressed onto the outer wall of the carriage baffle (202) by a slot, and a second inner insulation layer (304) is pressed onto the inner wall of the insulation core (303) by nails. The ventilation mechanism (4) includes a controller (401) fixed on the top of the outer insulation layer (301). The bottom wire of the controller (401) is connected to an air pump motor (402) embedded in the insulation core (303). An air pump impeller (405) is shaft-connected to the output end of the air pump motor (402). A distribution pipe (406) is connected around the outer wall of the air pump impeller (405). The distribution pipe (406) is connected to the inner cavity of the frame (201).

2. The structure of an insulated transfer vehicle compartment according to claim 1, characterized in that: The bottom of the inner cavity of the frame (201) is provided with an air extraction hole (404), which also penetrates the second inner insulation layer (304). The air extraction hole (404) is set in four groups, and the outer walls of the frame (201) are also welded with reinforcing ribs (305).

3. The insulated transfer vehicle compartment structure according to claim 2, characterized in that: An air outlet cover (403) is installed at the bottom of the air pump impeller (405), and the air outlet cover (403) is set close to the top of the second inner insulation layer (304).

4. The structure of an insulated transfer vehicle compartment according to claim 3, characterized in that: The top of the carriage floor (1) is formed with a raised ridge (101), and several ventilation holes are provided through the raised ridge (101).

5. The structure of an insulated transfer vehicle compartment according to claim 4, characterized in that: The bottom sides of the frame (201) are also equipped with sliding lock mechanisms (5). The sliding lock mechanism (5) includes a locking rod (502) that is rotatably connected to the outer wall of the frame (201). A locking handle (503) is provided on one side of the locking rod (502) and is used in conjunction with the locking handle and welded to the outer wall of the carriage baffle (202).

6. The structure of an insulated transfer vehicle compartment according to claim 5, characterized in that: A slide rod (501) welded to the frame (201) is provided directly below the locking rod (502). A pulley (505) is bolted to the bottom of the slide rod (501). The pulley (505) is slidably connected in the slide rail (504) opened at the bottom of the carriage floor (1).