Carriage of refrigerator car
By combining sliding frames and heat-insulating tarpaulins, the problems of cargo tipping over and cold air leakage in refrigerated compartments are solved, achieving stable cargo transportation and cold air retention, thus saving energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-03
AI Technical Summary
Existing refrigerated trucks are prone to tipping over and causing significant loss of cold air during transport, increasing energy consumption.
The cargo is held in place by a sliding frame and an adjustment mechanism. Combined with the rolling and unfolding of the heat-insulating tarpaulin, the cargo is secured and the cold air is retained by the sliding frame sliding on a fixed track and the motor driving the winding drum.
It improves the stability of cargo transportation, reduces the loss of cold air during unloading, and saves energy.
Smart Images

Figure CN224075648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a vehicle compartment, specifically a refrigerated vehicle compartment, and belongs to the field of refrigerated vehicle technology. Background Technology
[0002] Chinese Patent Publication No. CN219467872U discloses a clean refrigerated truck, including a compartment mounted on a vehicle body. Multiple equidistant raised strips are fixedly connected to the bottom wall of the compartment. Water guide strips are fixedly connected between adjacent raised strips. Guide rails are fixedly connected to the inner walls of both sides of the compartment. Guide strips are slidably arranged between the guide rails. A cleaning plate is provided below the guide strips. A cleaning cloth is fixedly connected to the bottom of the cleaning plate. Multiple guide rods are fixedly connected to the top of the cleaning plate. The upper ends of the guide rods pass through the guide strips. A connecting strip is fixedly connected to the upper ends of the guide rods. An adjustment component is provided between the connecting strip and the guide strip.
[0003] However, the inventor of the above-mentioned device believes that there are certain defects. The goods inside the compartment of the above-mentioned device are prone to tipping over due to inertia during transportation. In addition, during multiple unloading processes, due to the large amount of cold air leakage, the refrigeration components need to be re-cooled, which increases energy consumption. Therefore, this utility model provides a refrigerated truck compartment. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The purpose of this utility model is to provide a refrigerated truck compartment to solve the above-mentioned problems, thereby addressing the issues in the prior art.
[0006] (II) Technical Solution
[0007] This utility model is achieved through the following technical solution: a refrigerated truck compartment, including a refrigerated compartment and a sliding frame, the sliding frame being slidably connected inside the refrigerated compartment, the inner side wall of the sliding frame having a side sliding groove, two sliding blocks being slidably connected inside the side sliding groove, one end of each sliding block being hinged to a pressing rod, a clamping plate being slidably provided on the inner top wall of the sliding frame, the other end of the pressing rod being hinged to one side of the clamping plate by a pin, an adjustment mechanism being provided inside the sliding frame to drive the two sliding blocks to move closer to each other, a top box being fixedly connected to one end of the sliding frame, and a heat-insulating tarpaulin being provided inside the top box.
[0008] Preferably, the inner bottom wall of the refrigerated compartment is fixedly connected with a fixed bottom rod and a fixed slide rail, and the bottom of the sliding frame is slidably connected inside the fixed slide rail. The fixed slide rail supports the sliding frame to slide horizontally inside the refrigerated compartment.
[0009] Preferably, the adjusting mechanism includes a bidirectional screw that rotates inside the side slide groove, and the two sliding blocks are threadedly connected to the bidirectional screw. By driving the bidirectional screw to rotate, the two sliding blocks slide closer to or further away from each other.
[0010] Preferably, a drive rod is rotatably connected to the sliding frame, one end of which extends into the interior of the side sliding groove. The drive rod and the bidirectional screw are connected by a gear assembly. Under the action of the gear assembly, the drive rod rotates, causing the bidirectional screw to rotate together.
[0011] Preferably, a take-up drum is rotatably connected inside the top box, one end of the heat-insulating tarpaulin is wrapped around the outer surface of the take-up drum, and a motor that drives the take-up drum to rotate is fixedly connected inside the top box. By starting the motor, the take-up drum is driven to rotate, so as to take up and unroll the heat-insulating tarpaulin.
[0012] Preferably, the other end of the sliding frame is threaded with a fixing bolt that restricts the sliding of the sliding frame, and the fixed slide rail is provided with a corresponding insertion hole. The sliding frame is restricted to slide inside the fixed slide rail by the action of the fixing bolt and the insertion hole.
[0013] Preferably, a counterweight is fixedly connected to the other end of the heat-insulating tarpaulin, which provides a downward pulling force on one end of the heat-insulating tarpaulin under the action of the counterweight.
[0014] This utility model provides a refrigerated truck compartment, which has the following beneficial effects:
[0015] 1. The device drives two sliding blocks to move closer to each other through an adjustment mechanism. Under the squeezing action of the squeezing rod, the clamping plate is pushed closer to the center of the sliding frame. The two clamping plates clamp and fix the transported goods, improving the stability of the goods during transportation. The heat-insulating tarpaulin reduces the loss of cold air from the rear during unloading.
[0016] 2. This device adjusts the position of the sliding frame inside the refrigerated compartment by driving the sliding frame to slide on two fixed slide rails. The sliding of the sliding frame is restricted by the fixing bolts and holes. The motor is started to drive the winding drum to rotate, and the counterweight strip is used to roll up or unroll the heat insulation tarpaulin. Attached Figure Description
[0017] Figure 1 This is a perspective view of the entire utility model;
[0018] Figure 2 A perspective view of the sliding bracket installation of this utility model;
[0019] Figure 3This is a schematic diagram of the sliding frame structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the installation of the drive lever of this utility model;
[0021] Figure 5 This is a schematic diagram of the top box structure of this utility model.
[0022] [Explanation of Key Component Symbols]
[0023] 1. Refrigerated compartment; 2. Fixed base rod; 3. Fixed slide rail; 4. Sliding frame; 41. Side slide groove; 42. Sliding block; 43. Extrusion rod; 44. Double-acting screw; 45. Fixing bolt; 46. Drive rotating rod; 5. Clamping plate; 6. Top box; 7. Heat-insulating tarpaulin; 71. Rewind drum; 72. Motor. Detailed Implementation
[0024] This utility model embodiment provides a refrigerated truck compartment.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A refrigerated truck compartment includes a refrigerated compartment 1 and a sliding frame 4. The sliding frame 4 is slidably connected to the interior of the refrigerated compartment 1. A fixed bottom rod 2 and a fixed slide rail 3 are fixedly connected to the inner bottom wall of the refrigerated compartment 1. The bottom of the sliding frame 4 is slidably connected to the interior of the fixed slide rail 3. A ventilation groove is formed between two adjacent fixed bottom rods 2 for the circulation of cold air. The sliding frame 4 is inverted U-shaped, and the two ends of the bottom of the sliding frame 4 are slidably connected to the interior of the fixed slide rail 3. The bottom of the sliding frame 4 is fixedly connected to rollers that support the sliding frame 4 so that the sliding frame 4 can slide horizontally inside the refrigerated compartment 1. The number of sliding frames 4 installed can be selected according to the usage requirements.
[0026] Please refer to it again. Figure 1 and Figure 2 The other end of the sliding frame 4 is threaded with a fixing bolt 45 to restrict the sliding of the sliding frame 4. The fixing slide 3 has a corresponding insertion hole for the fixing bolt 45. The sliding of the sliding frame 4 is restricted by inserting the fixing bolt 45 into the insertion hole and then installing it on one end of the sliding frame 4.
[0027] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4The inner side wall of the sliding frame 4 is provided with a side sliding groove 41. Two sliding blocks 42 are slidably connected inside the side sliding groove 41. One end of each sliding block 42 is hinged to a pressing rod 43. A clamping plate 5 is slidably provided on the inner top wall of the sliding frame 4. A top sliding groove is provided on the inner top wall of the sliding frame 4. One end of the clamping plate 5 slides in the top sliding groove. The other end of the pressing rod 43 is hinged to one side of the clamping plate 5 by a pin. By driving the two sliding blocks 42 to move closer to each other, the clamping plate 5 is pushed towards the center of the sliding frame 4 by the pressing action of the pressing rod 43.
[0028] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 The sliding frame 4 is equipped with an adjustment mechanism that drives two sliding blocks 42 to move closer to each other. The adjustment mechanism includes a bidirectional screw 44 that rotates inside the side slide groove 41. Both sliding blocks 42 are threadedly connected to the bidirectional screw 44. The bidirectional screw 44 is a screw with two external threads, and the threads of the two external threads are in opposite directions. By driving the bidirectional screw 44 to rotate, the two sliding blocks 42 are driven to move closer to each other or further away from each other. A drive rod 46 is rotatably connected to the sliding frame 4. One end of the drive rod 46 extends into the side slide groove 41. The drive rod 46 and the bidirectional screw 44 are connected by a gear assembly. The gear assembly consists of two meshing bevel gears. One bevel gear is fixed to the bidirectional screw 44, and the other bevel gear is fixed to one end of the drive rod 46. By driving the drive rod 46 to rotate, the bidirectional screw 44 is driven to rotate together under the action of the gear assembly.
[0029] Please refer to it again. Figure 1 , Figure 2 and Figure 5 One end of the sliding frame 4 is fixedly connected to the top box 6. The top box 6 contains a heat-insulating tarpaulin 7. A take-up drum 71 is rotatably connected inside the top box 6. One end of the heat-insulating tarpaulin 7 is wrapped around the outer surface of the take-up drum 71. A motor 72 that drives the take-up drum 71 to rotate is fixedly connected inside the top box 6. A counterweight is fixedly connected to the other end of the heat-insulating tarpaulin 7. The take-up drum 71 is driven to rotate by starting the motor 72. The counterweight provides a downward pulling force to one end of the heat-insulating tarpaulin 7. When the heat-insulating tarpaulin 7 is unwound, it is pulled out from inside the top box 6. The heat-insulating tarpaulin 7 is wound up by driving the take-up drum 71 to reverse.
[0030] Working principle: The sliding frame 4 is driven to slide inside the refrigerated compartment 1 to adjust its position. Then, the position of the sliding frame 4 is fixed by inserting the fixing bolt 45 into the insertion hole and installing it on one end of the sliding frame 4. The goods to be fixed are placed between the two clamping plates 5. The drive rod 46 is driven to rotate, and the double screw 44 is driven to rotate together under the action of the gear assembly, which drives the two sliding blocks 42 to move closer to each other. Under the squeezing action of the squeezing rod 43, the clamping plates 5 are pushed closer to the goods. The goods are clamped and fixed by the two clamping plates 5. When it is necessary to unload the rear compartment, the motor 72 is started to drive the winding drum 71 to rotate, so as to unroll the heat insulation tarpaulin 7. Under the action of the counterweight, the heat insulation tarpaulin 7 is pulled out from the inside of the top box 6. The heat insulation tarpaulin 7 is used to cover the front compartment to prevent a large amount of cold air from being lost in the front compartment during the unloading process.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A refrigerated vehicle compartment comprising a refrigerated vehicle compartment (1) and a sliding frame (4), characterized in that: The sliding frame (4) is slidably connected in the inside of the refrigerated vehicle compartment (1), the inner side wall of the sliding frame (4) is provided with a side sliding groove (41), the inside of the side sliding groove (41) is slidably connected with two sliding blocks (42), one end of each of the sliding blocks (42) is hingedly connected with an extrusion rod (43), the inner top wall of the sliding frame (4) is slidably connected with a clamping plate (5), the other end of the extrusion rod (43) is hingedly connected with one side of the clamping plate (5) through a pin shaft, the inside of the sliding frame (4) is provided with an adjusting mechanism for driving the two sliding blocks (42) to move close to each other. One end of the sliding frame (4) is fixedly connected with a top box (6), the inside of the top box (6) is provided with a heat insulation tarpaulin (7).
2. A refrigerated vehicle body according to claim 1, characterised in that: The inner bottom wall of the refrigerated vehicle compartment (1) is fixedly connected with a fixed bottom rod (2) and a fixed slide (3), the bottom of the sliding frame (4) is slidably connected in the inside of the fixed slide (3).
3. A refrigerated vehicle body according to claim 1, wherein: The adjusting mechanism comprises a bidirectional screw rod (44) rotating in the inside of the side sliding groove (41), the two sliding blocks (42) are threadedly connected on the bidirectional screw rod (44).
4. A refrigerated vehicle body according to claim 3, characterised in that: A driving rotating rod (46) is rotatably connected on the sliding frame (4), one end of the driving rotating rod (46) extends into the inside of the side sliding groove (41), the driving rotating rod (46) and the bidirectional screw rod (44) are connected through a gear assembly.
5. A refrigerated vehicle body according to claim 1, wherein: The inside of the top box (6) is rotatably connected with a winding drum (71), one end of the heat insulation tarpaulin (7) is wound on the outer surface of the winding drum (71), the inside of the top box (6) is fixedly connected with a motor (72) for driving the winding drum (71) to rotate.
6. A refrigerated vehicle body according to claim 2, wherein: The other end of the sliding frame (4) is threadedly connected with a fixed bolt (45) for limiting the sliding of the sliding frame (4), the fixed slide (3) is provided with a bushing corresponding to the fixed bolt (45).
7. A refrigerated vehicle body as claimed in claim 1, wherein: The other end of the heat insulation tarpaulin (7) is fixedly connected with a counterweight strip.
Citation Information
Patent Citations
Clean refrigerator car
CN219467872U