Refrigerator car with side sliding door structure

Abstract

The invention provides a refrigerator car with a side sliding door structure, and relates to the technical field of refrigerator cars. The refrigerator car with the side sliding door structure comprises a refrigerator compartment installed on a car frame, one end of the refrigerator compartment is fixedly connected with a refrigeration assembly, the other end of the refrigerator compartment is hinged to a compartment door, the two side faces of the refrigerator compartment are both slidably connected with a sliding door assembly, and each sliding door assembly comprises two side sliding plates; side sliding grooves are formed in the two side faces of the refrigerator compartment, the two side sliding plates are slidably connected to the interiors of the two side sliding grooves correspondingly, a driving assembly for driving the two side sliding plates to rise in a sliding mode is arranged at the top of the refrigerator compartment, and the side faces, away from the refrigerator compartment, of the side sliding plates are fixedly connected with connecting frames. According to the refrigerator truck with the side sliding door structure, the side sliding plates are driven by the driving assembly to ascend and slide on the two side faces of the refrigerator truck carriage to open the two side faces of the refrigerator truck carriage, the unloading convenience is improved, and the interior of the refrigerator truck carriage can be conveniently and rapidly ventilated.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerated trucks, and particularly to a refrigerated truck with a side sliding door structure. Background Art

[0002] The transportation of many goods requires freezing or refrigeration. Therefore, cold storages are installed on transportation vehicles, which are refrigerated trucks. The emergence and development of refrigerated trucks have greatly facilitated the freezing and refrigeration of goods during the turnover process. Nowadays, many of the goods transported in large and medium-sized cities use refrigerated trucks. Refrigerated trucks can be classified according to the manufacturer, chassis load capacity, and carriage type. Refrigerated trucks are commonly used to transport frozen foods, dairy products, fruits and vegetables, vaccines, and medicines, etc.

[0003] Chinese Patent Publication No. CN218316433U discloses an LNG refrigerated truck, including a refrigerated truck body and a refrigerated compartment. A sun protection and heat insulation mechanism is provided on the top of the refrigerated compartment. The sun protection and heat insulation mechanism includes a top cover, the top cover is fixedly installed on the top of the refrigerated compartment, rolling cloth rollers are respectively provided on the front and back sides of the top cover, sunscreen curtains are respectively wound on the outer side walls of the two rolling cloth rollers, guiding mechanisms are respectively provided on the front and back sides of the refrigerated compartment, and each guiding mechanism is provided with a curtain unfolding mechanism.

[0004] Chinese Patent Publication No. CN222329562U discloses a refrigerated truck, including a carriage, a door, a handle, a fixed shell, a fixing plate, a motor, a fan, and a wind guiding strip. The fixed shell is fixedly connected to the carriage and is located inside the carriage. The fixing plate is fixedly connected to the fixed shell and is located at the lower end of the fixed shell. The motor is detachably connected to the fixing plate and is located above the fixing plate. The fan is detachably connected to the motor and is located above the motor. The wind guiding strip is detachably connected to the fixed shell and is located on one side of the fixed shell. Starting the motor drives the fan to rotate, so that the fan blows the cold air near the lower cooling pipe to the top of the inner wall of the carriage. The cold air will flow along the directions of the lower heat dissipation block, the first side heat dissipation block, and the second side heat dissipation block, and finally flow below the fan for the next cycle.

[0005] However, the inventors of the above devices believe that there are certain defects. The above devices all use the method of opening one end of the box door for loading or unloading goods. Due to the relatively long overall length of the carriage, the loading efficiency is affected, and when there is an odor inside the carriage and ventilation is required, the exhaust cannot be quickly carried out for ventilation. Summary of the Invention

[0006] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a refrigerated truck with a side sliding door structure, which solves the problems of the prior art.

[0007] (II) Technical Solutions To achieve the above object, the present invention is realized through the following technical solutions: A refrigerated truck with a sliding door structure includes a refrigerated compartment installed on a vehicle frame. One end of the refrigerated compartment is fixedly connected with a refrigeration component, and the other end of the refrigerated compartment is hinged with a box door. Both side surfaces of the refrigerated compartment are slidably connected with sliding door components. The sliding door component includes two side sliding plates. Side sliding grooves are opened on both side surfaces of the refrigerated compartment, and the two side sliding plates are respectively slidably connected inside the two side sliding grooves. A driving component for driving the two side sliding plates to slide and rise is provided on the top of the refrigerated compartment. A connecting frame is fixedly connected to the side surface of the side sliding plate away from the refrigerated compartment, and a heat insulation cavity is formed between the connecting frame and the side sliding plate. A sliding frame is slidably connected inside the refrigerated compartment, and a heat insulation cloth is provided on the inner top wall of the sliding frame.

[0008] Preferably, connecting sliding strips are fixedly connected to both ends of the side sliding plate, and connecting sliding grooves are opened on the inner side wall of the side sliding groove. The connecting sliding strips are slidably connected inside the connecting sliding grooves. The side sliding plate is stably slid inside the side sliding groove under the action of the connecting sliding strips and the connecting sliding grooves.

[0009] Preferably, a first sealing strip is fixedly connected to the inner side wall of the side sliding groove, and a second sealing strip is fixedly connected to the bottom of the side sliding plate. The side sliding plate and the side and bottom of the side sliding groove are sealed under the action of the first sealing strip and the second sealing strip.

[0010] Preferably, a connecting strip is fixedly connected to the side sliding plate, and a third sealing strip is fixedly connected to the connection between the connecting strip and the side sliding plate. The space between the side sliding plate and the top of the refrigerated compartment is sealed under the action of the third sealing strip.

[0011] Preferably, the driving component includes a fixed box fixed on the refrigerated compartment. A driving sliding groove is opened at one end of the side sliding plate. Two driving rotating rods are rotatably connected inside the fixed box. Extrusion rods are fixedly connected to both ends of each driving rotating rod. An extrusion slider is fixedly connected to one end of each extrusion rod. Two groups of extrusion sliders are respectively slid inside the two driving sliding grooves. By driving the two driving rotating rods to rotate towards the fixed box, the two side sliding plates are pulled to slide upward under the action of the two groups of extrusion rods and extrusion sliders.

[0012] Preferably, connecting gears are fixedly connected to the two driving rotating rods, and the two connecting gears are meshed with each other. A motor for driving one driving rotating rod to rotate is fixedly connected inside the fixed box. By starting the motor to drive one driving rotating rod to rotate, the two driving rotating rods are driven to rotate together under the action of the two connecting gears, and the rotation directions are opposite.

[0013] Preferably, a plurality of fixing bars are fixedly connected to the inner bottom wall of the refrigerated compartment. The bottom of the sliding frame is slidably connected to the fixing bars. A fixing bolt is installed on the inner bottom wall of the sliding frame. A screw hole adapted to the fixing bolt is provided at the top of the fixing bar. The sliding of the sliding frame inside the refrigerated compartment is restricted by the screw hole and the fixing bolt.

[0014] Preferably, a top cavity is provided on the inner top wall of the sliding frame. A winding roller is rotatably connected inside the top cavity. One end of the heat-insulating cloth is wound around the outer surface of the winding roller. The heat-insulating cloth is wound by the winding roller provided to store it.

[0015] Preferably, a hairspring is fixedly connected to the inner side wall of the top cavity. The other end of the hairspring is fixedly connected to the rotating shaft end of the winding roller. A bottom bar is fixedly connected to the bottom of the heat-insulating cloth. Sliding pins are slidably connected to both ends of the bottom bar. Side jacks adapted to the sliding pins are provided on the inner side wall of the sliding frame. The position of the bottom bar is fixed by inserting one end of the sliding pin into the inner part of the side jack, preventing the heat-insulating cloth from being wound by the reverse rotation of the winding roller driven by the rebound of the hairspring.

[0016] (III) Advantageous Effects The present invention provides a refrigerated truck with a side-sliding door structure. The following advantageous effects are achieved: 1. For the refrigerated truck with the side-sliding door structure, the side slides are driven by a driving component to slide upward on both sides of the refrigerated compartment to open both sides of the refrigerated compartment, improving the convenience of unloading and facilitating rapid ventilation and air exchange inside the refrigerated compartment.

[0017] 2. For the refrigerated truck with the side-sliding door structure, by injecting water into the heat-insulating cavity between the connecting frame and the side slide, the heat-insulating and sunshading effects of the refrigerated compartment are improved, effectively enhancing the refrigeration effect inside the refrigerated compartment and reducing the refrigeration power consumption.

[0018] 3. For the refrigerated truck with the side-sliding door structure, under the action of the fixed box, driving rotating rod, extrusion rod, extrusion slider, connecting gear, motor and driving chute provided, the side slide is driven to slide up and down, and when the driving component is not in use, the height value occupied on the top of the refrigerated compartment is relatively small, without affecting the normal transportation of the refrigerated compartment.

[0019] 4. For the refrigerated truck with the side-sliding door structure, the inside of the refrigerated compartment is separated by the sliding frame and the heat-insulating cloth into a front compartment and a rear compartment, so that the cold air generated by the refrigeration component can centrally refrigerate the goods piled up in the front compartment, reducing the diffusion of cold air throughout the compartment and thus reducing the energy consumption. Description of the Drawings

[0020] Figure 1Front view installation schematic diagram of the refrigerated truck compartment of the present invention; Figure 2 Three-dimensional structure diagram of the refrigerated truck compartment of the present invention; Figure 3 Three-dimensional structure diagram of the side sliding groove structure of the refrigerated truck compartment of the present invention; Figure 4 Three-dimensional structure diagram of the drive assembly of the present invention; Figure 5 Schematic diagram of the sliding frame structure of the present invention; Figure 6 Schematic diagram of the fixed box structure of the present invention.

[0021] Among them, 1. Refrigerated truck compartment; 11. Side sliding groove; 2. Side sliding plate; 21. Drive sliding groove; 22. Connecting strip; 3. Fixed box; 31. Drive rotating rod; 32. Extrusion rod; 33. Extrusion slider; 34. Connecting gear; 35. Motor; 4. Connecting frame; 5. Fixed strip; 51. Screw hole; 6. Sliding frame; 61. Fixed bolt; 62. Top cavity; 63. Side jack; 7. Heat insulation cloth; 71. Winding roller; 8. Bottom bar; 81. Sliding bolt. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , a refrigerated truck with a side sliding door structure, including a refrigerated truck compartment 1 installed on a vehicle frame. One end of the refrigerated truck compartment 1 is fixedly connected with a refrigeration assembly, and a box door is hinged to the other end of the refrigerated truck compartment 1. The interior of the refrigerated truck compartment 1 is refrigerated and cooled by the refrigeration assembly. The refrigeration assembly is common knowledge in the art, and its structure and working principle will not be described in detail in this application. By opening the box door at the other end of the refrigerated truck compartment 1, loading and unloading can be carried out through the open end of the refrigerated truck compartment 1.

[0024] Please refer to again Figure 1 , Figure 2 , Figure 3 and Figure 4, sliding door assemblies are slidably connected to both side surfaces of the refrigerated compartment 1. The sliding door assemblies include two side sliding plates 2. Side sliding grooves 11 are formed on both side surfaces of the refrigerated compartment 1. The two side sliding plates 2 are respectively slidably connected inside the two side sliding grooves 11. Connecting sliding strips are fixedly connected to both ends of the side sliding plate 2. Connecting sliding grooves are formed on the inner side walls of the side sliding grooves 11. The connecting sliding strips are slidably connected inside the connecting sliding grooves. Under the action of the connecting sliding strips and the connecting sliding grooves, the side sliding plate 2 is stably lifted and slid inside the side sliding groove 11.

[0025] Please refer to again Figure 1 , Figure 2 , Figure 3 and Figure 4 , a first sealing strip is fixedly connected to the inner side wall of the side sliding groove 11. A second sealing strip is fixedly connected to the bottom of the side sliding plate 2. A connecting strip 22 is fixedly connected to the side sliding plate 2. A third sealing strip is fixedly connected to the connection between the connecting strip 22 and the side sliding plate 2. The first sealing strip seals between the bottom of the side sliding plate 2 and the inner bottom wall of the side sliding groove 11. Under the action of the second sealing strip, it seals between the side surface of the side sliding plate 2 and the inner side wall of the side sliding groove 11. The third sealing strip is L-shaped. Under the action of the third sealing strip, it seals between the side sliding plate 2 and the top of the refrigerated compartment 1.

[0026] Please refer to again Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 , a driving assembly for driving the two side sliding plates 2 to slide and rise is provided on the top of the refrigerated compartment 1. The driving assembly includes a fixed box 3 fixed on the refrigerated compartment 1. A driving sliding groove 21 is formed at one end of the side sliding plate 2. Two driving rotating rods 31 are rotatably connected inside the fixed box 3. Extrusion rods 32 are fixedly connected to both ends of each driving rotating rod 31. An extrusion slider 33 is fixedly connected to one end of each extrusion rod 32. The two groups of extrusion sliders 33 are respectively slid inside the two driving sliding grooves 21. The extrusion slider 33 is cylindrical. Each group of extrusion rods 32 is arranged in an inverted V shape. By driving the two driving rotating rods 31 to rotate towards the fixed box 3, as the included angle between the two extrusion rods 32 gradually decreases, the extrusion slider 33 at one end of the extrusion rod 32 is used to push the side sliding plate 2 to slide upward.

[0027] Please refer to again Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6, connection gears 34 are fixedly connected to both of the two driving rotating rods 31, and the two connection gears 34 are meshed with each other. A motor 35 for driving one driving rotating rod 31 to rotate is fixedly connected inside the fixed box 3. The output rotating shaft end of the motor 35 and one driving rotating rod 31 are connected by a sprocket assembly. The sprocket assembly consists of two sprockets and a transmission chain. The two sprockets are respectively fixedly connected to the output rotating shaft end of the motor 35 and the driving rotating rod 31. By starting the motor 35 under the action of the transmission chain, one driving rotating rod 31 is driven to rotate, and under the meshing action of the two connection gears 34, the two driving rotating rods 31 are driven to rotate together, and the rotation directions of the two driving rotating rods 31 are opposite.

[0028] Please refer to again Figure 1 and Figure 2 , a connection frame 4 is fixedly connected to the side of the side sliding plate 2 away from the refrigerated carriage 1. An insulation cavity is formed between the connection frame 4 and the side sliding plate 2. A water injection port and a drain port are fixedly connected to the connection frame 4. The water injection port and the drain port are both threadedly connected with a retaining cover. Water is injected into the insulation cavity through the water injection port, improving the insulation and sun protection effects on the side of the refrigerated carriage 1.

[0029] Please refer to again Figure 1 , Figure 3 and Figure 5 , a sliding frame 6 is slidably connected inside the refrigerated carriage 1. A plurality of fixing strips 5 are fixedly connected to the inner bottom wall of the refrigerated carriage 1. The bottom of the sliding frame 6 is slidably connected to the fixing strips 5. A fixing bolt 61 is installed on the inner bottom wall of the sliding frame 6. A threaded hole 51 adapted to the fixing bolt 61 is opened at the top of the fixing strip 5. The bottoms of the goods are supported by the plurality of fixing strips 5, enabling cold air to flow through the gaps between two adjacent fixing strips 5. A counterbore for placing the fixing bolt 61 is opened on the inner bottom wall of the sliding frame 6. The sliding of the whole sliding frame 6 inside the refrigerated carriage 1 is restricted by the fixing bolt 61 and the threaded hole 51 on the fixing strip 5.

[0030] Please refer to again Figure 1 , Figure 3 and Figure 5, an insulating cloth 7 is provided on the inner top wall of the sliding frame 6. A top cavity 62 is formed on the inner top wall of the sliding frame 6. A winding roller 71 is rotatably connected inside the top cavity 62. One end of the insulating cloth 7 is wound around the outer surface of the winding roller 71. A hairspring is fixedly connected to the inner side wall of the top cavity 62, and the other end of the hairspring is fixedly connected to the shaft end of the winding roller 71. A bottom bar 8 is fixedly connected to the bottom of the insulating cloth 7. By pulling the bottom bar 8, the insulating cloth 7 is pulled out from the inside of the top cavity 62, and under the action of the hairspring, the insulating cloth 7 is tightened. Sliding pins 81 are slidably connected to both ends of the bottom bar 8. Side jacks 63 adapted to the sliding pins 81 are formed on the inner side wall of the sliding frame 6. An installation chute is formed on the bottom bar 8. One end of the sliding pin 81 slides inside the installation chute and extends to one end of the bottom bar 8, and a connecting block is fixedly connected to the sliding pin 81. By means of the connecting block, one end of the sliding pin 81 is inserted into the side jack 63 to fix the position of the bottom bar 8, so that the insulating cloth 7 is unfolded to divide the interior of the refrigerated carriage 1 into a front carriage and a rear carriage.

[0031] Working principle: By starting the motor 35 to drive a driving rotating rod 31 to rotate, under the action of two connecting gears 34, the two driving rotating rods 31 rotate together towards the fixed box 3, by reducing the angle between the two pressing rods 32, under the action of the pressing slider 33 and the driving chute 21, the two side sliding plates 2 are pushed to slide upward to open the side chute 11 on the side of the refrigerated carriage 1, and it is convenient to load and unload the interior of the refrigerated carriage 1 through the side chute 11.

[0032] By driving the sliding frame 6 to slide back and forth inside the refrigerated carriage 1 to adjust the partition ratio inside the refrigerated carriage 1, then the fixing bolt 61 is inserted into the counterbore on the sliding frame 6, and one end of the fixing bolt 61 is screwed into the screw hole 51 to fix the position of the sliding frame 6. The stored goods are centrally placed in the front carriage. Then, by pulling the bottom bar 8 down to pull the insulating cloth 7 out from the inside of the top cavity 62, one end of the sliding pin 81 is inserted into the side jack 63 to fix the position of the bottom bar 8, so that the insulating cloth 7 is unfolded to divide the interior of the refrigerated carriage 1 into a front carriage and a rear carriage, and the refrigeration component is used to centrally refrigerate and cool the front carriage. When transporting the goods, water is injected into the connecting frame 4 and the insulating cavity inside the refrigerated carriage 1 through the water injection port, improving the heat insulation and sun protection effect on the side of the refrigerated carriage 1.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A refrigerated truck with a sliding side door structure, comprising a refrigerated compartment (1) installed on a vehicle frame, characterized in that: One end of the refrigerated carriage (1) is fixedly connected with a refrigeration component, the other end of the refrigerated carriage (1) is hinged with a box door, both side surfaces of the refrigerated carriage (1) are slidably connected with sliding door components, the sliding door components include two side sliding plates (2), both side surfaces of the refrigerated carriage (1) are provided with side sliding grooves (11), and the two side sliding plates (2) are respectively slidably connected inside the two side sliding grooves (11). A driving component for driving the two side sliding plates (2) to slide and rise is arranged at the top of the refrigerated carriage (1). A connecting frame (4) is fixedly connected to one side surface of the side sliding plate (2) away from the refrigerated carriage (1). An insulating cavity is formed between the connecting frame (4) and the side sliding plate (2). A sliding frame (6) is slidably connected inside the refrigerated carriage (1), and a heat insulating cloth (7) is arranged on the inner top wall of the sliding frame (6).

2. The refrigerated truck with a sliding side door structure according to claim 1, characterized in that: Connecting sliding strips are fixedly connected to both ends of the side sliding plate (2), connecting sliding grooves are formed in the inner side wall of the side sliding groove (11), and the connecting sliding strips are slidably connected inside the connecting sliding grooves.

3. The refrigerated truck with a sliding side door structure according to claim 1, wherein: A first sealing strip is fixedly connected to the inner side wall of the side sliding groove (11), and a second sealing strip is fixedly connected to the bottom of the side sliding plate (2).

4. A refrigerated truck with a sliding side door structure according to claim 1, characterized in that: A connecting strip (22) is fixedly connected to the side sliding plate (2), and a third sealing strip is fixedly connected to the connection part between the connecting strip (22) and the side sliding plate (2).

5. A refrigerated truck with a sliding side door structure according to claim 1, characterized in that: The driving component includes a fixed box (3) fixed on the refrigerated carriage (1). A driving sliding groove (21) is formed at one end of the side sliding plate (2). Two driving rotating rods (31) are rotatably connected inside the fixed box (3). Extrusion rods (32) are fixedly connected to both ends of each driving rotating rod (31). An extrusion slider (33) is fixedly connected to one end of each extrusion rod (32). Two groups of extrusion sliders (33) are respectively slidably connected inside the two driving sliding grooves (21).

6. The refrigerated truck with a sliding side door structure according to claim 5, characterized in that: Connecting gears (34) are fixedly connected to both of the two driving rotating rods (31), the two connecting gears (34) are meshed with each other, and a motor (35) for driving one driving rotating rod (31) to rotate is fixedly connected inside the fixed box (3).

7. A refrigerated truck with a sliding side door structure according to claim 1, characterized in that: A plurality of fixing strips (5) are fixedly connected to the inner bottom wall of the refrigerated carriage (1), the bottom of the sliding frame (6) is slidably connected to the fixing strips (5), a fixing bolt (61) is installed on the inner bottom wall of the sliding frame (6), and a screw hole (51) adapted to the fixing bolt (61) is formed at the top of the fixing strip (5).

8. A refrigerated truck with a sliding side door structure according to claim 1, characterized in that: A top cavity (62) is formed in the inner top wall of the sliding frame (6). A winding roller (71) is rotatably connected inside the top cavity (62). One end of the heat insulating cloth (7) is wound on the outer surface of the winding roller (71).

9. The refrigerated truck with a sliding side door structure according to claim 8, wherein: A spiral spring is fixedly connected to the inner side wall of the top cavity (62), the other end of the spiral spring is fixedly connected to the rotating shaft end of the winding roller (71). A bottom bar (8) is fixedly connected to the bottom of the heat insulating cloth (7). Sliding bolts (81) are slidably connected to both ends of the bottom bar (8), and side jacks (63) adapted to the sliding bolts (81) are formed in the inner side wall of the sliding frame (6).

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