Cold-chain logistics vehicle

Abstract

The utility model discloses a cold-chain logistics vehicle, which belongs to the technical field of logistics transportation equipment and comprises a vehicle body, a box body, a door body and a refrigerator. The box body is provided with a goods cavity and a loading and unloading opening communicating with the goods cavity. The box body is installed on the vehicle body, and the door body is movably installed on the box body to cover or be away from the loading-unloading opening. The refrigerator is provided with a refrigerating channel and is mounted on the box body; the box body comprises a bottom plate, a plurality of telescopic seats arranged on the bottom plate, and top plates which are arranged at intervals with the bottom plate and are mounted on the telescopic seats; the multiple telescopic bases are located between the bottom plate and the top plate and are sequentially connected, the bottom plate, the top plate and the multiple telescopic bases jointly define a loading and unloading opening and a cargo cavity, a first air conveying channel is formed in at least one telescopic base, and the refrigeration channel communicates with the cargo cavity through the first air conveying channel. According to the cold-chain logistics vehicle, the size of the box body can be adjusted according to the number of different goods, and the transportation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics transportation equipment, in particular to a cold chain logistics vehicle. Background Art

[0002] Cold Chain Logistics generally refers to a systematic project that keeps refrigerated and frozen foods in a specified low-temperature environment throughout the production, storage, transportation, sales, and before consumption to ensure food quality and reduce food loss. It was established with the advancement of science and technology and the development of refrigeration technology. It is a low-temperature logistics process based on refrigeration technology and using refrigeration technology as a means. Cold chain transport vehicles play a key role in ensuring that food, medicine and other items maintain a constant low-temperature environment during transportation.

[0003] Cold chain logistics vehicles generally include a vehicle body and a refrigerator and a box installed on the vehicle body. The cold chain logistics vehicle uses the refrigeration technology of the refrigerator to reduce the temperature inside the box, ensuring that the medicines, foods, etc. stored in the box are in a constant low temperature environment. The size of the box of existing cold chain logistics vehicles is fixed, so in order to avoid wasting storage space, it is generally necessary to replace the box with a suitable size. Not only is the replacement of the box time-consuming and labor-intensive, but the required box sizes are many, and the storage of boxes of different sizes and types is troublesome, resulting in higher transportation costs. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a cold chain logistics vehicle that can adjust the size of the box according to different quantities of goods, thereby reducing transportation costs.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cold chain logistics vehicle, comprising:

[0007] Vehicle body;

[0008] A box body having a cargo cavity and a loading and unloading port communicating with the cargo cavity; the box body is installed on the vehicle body;

[0009] A door body, movably mounted on the box body to cover or keep away from the loading and unloading opening;

[0010] as well as

[0011] A refrigerator having a refrigeration channel and installed on the box;

[0012] The box body includes a bottom plate, a plurality of telescopic seats arranged on the bottom plate, and a top plate arranged at intervals from the bottom plate and installed on each of the telescopic seats; the plurality of telescopic seats are located between the bottom plate and the top plate and are connected in sequence, the bottom plate, the top plate, and the plurality of telescopic seats together enclose the loading and unloading port and the cargo cavity, a first gas transmission channel is formed inside at least one of the telescopic seats, and the refrigeration channel is connected to the cargo cavity through the first gas transmission channel.

[0013] Optionally, the door body and each of the telescopic seats include a first plate body having a first air hole and a second plate body having a second air hole; there are a plurality of the first plate bodies and they are arranged in sequence along a predetermined path, the first plate body located at one end of the predetermined path is connected to the bottom plate, and the first plate body located at the other end of the predetermined path is connected to the top plate;

[0014] The second plate body is provided between two adjacent first plates, and one end of the second plate body is slidably disposed in the first air hole of one of the first plates, and the other end of the second plate body is slidably disposed in the first air hole of the other first plate body, and the first air holes and the second air holes are alternately connected to form the first air transmission channel.

[0015] Optionally, the box body further comprises a partition and an air supply pipe arranged on the partition; there is at least one partition, and a plurality of the partitions are detachably installed on the first plate body in sequence along the predetermined path and divide the cargo cavity into a plurality of storage areas;

[0016] Each of the partitions is provided with an air inlet, a second air delivery channel, and an air outlet which are connected in sequence. The first air delivery channel is connected to the air inlet through the air supply pipe, and the air outlet of any partition is connected to the storage area located above it.

[0017] Optionally, the cold chain logistics vehicle also includes a baffle and an elastic member; a sliding channel and a third air hole are provided in the first plate body, the first air hole is connected to the cargo cavity through the third air hole, the sliding channel is connected to the third air hole, the baffle is slid in the sliding channel to cover or move away from the third air hole, the elastic member is installed in the sliding channel and is used to apply elastic force to the baffle so that the baffle covers the third air hole.

[0018] Optionally, a slide groove is further provided on the first plate body, and the slide groove is located on the inner wall of the cargo cavity. One end of the sliding channel and the third air hole are both connected to the slide groove, one end of the partition is slid in the slide groove and the baffle is located on the sliding path of the air supply pipe.

[0019] Optionally, the refrigerator has multiple refrigeration modules, and sealing plugs are provided at both ends of the second plate body. The second plate body is slidably arranged in the first air hole through the sealing plugs, and the multiple sealing plugs divide the first air transmission channel into multiple temperature control cavities; the multiple refrigeration modules, the multiple temperature control cavities, and the multiple storage areas correspond one to one.

[0020] Optionally, a vent hole is provided on the sealing plug, and the first vent hole is connected with the second vent hole through the vent hole.

[0021] Optionally, both the first plate body and the second plate body are provided with a heat-insulating layer.

[0022] Optionally, the cold chain logistics vehicle further includes a cylinder; adjacent first plates are connected via the cylinder.

[0023] Optionally, the door body is detachably mounted on the box body or rotatably mounted on the box body via a hinge.

[0024] The beneficial effects of the utility model are as follows: the height of the box of the cold chain logistics vehicle can be adjusted up and down, thereby changing the size of the cargo cavity. The size of the box can be adjusted according to the different quantities of cargo, which not only reduces the cumbersomeness of frequent replacement of the box of the cold chain logistics vehicle, but also eliminates the need to produce boxes of different sizes, thereby reducing transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described in detail below based on the drawings and embodiments.

[0026] Figure 1 This is a side view of the cold chain logistics vehicle;

[0027] Figure 2 For the box along Figure 1 Schematic diagram of the structure in the F direction;

[0028] Figure 3 It is a schematic diagram of the coordination of the first plate body, the second plate body, the baffle plate and the elastic member;

[0029] Figure 4 is a schematic diagram of the cooperation between the baffle and the elastic member, in which the baffle is covering the third air hole;

[0030] Figure 5 It is a schematic diagram of the cooperation between the baffle and the elastic member, in which the baffle is far away from the third air hole.

[0031] Description of the accompanying drawings:

[0032] 11. Car body; 12. Box body; 13. Door body; 14. Refrigerator; 15. Baffle; 16. Elastic member; 17. Cylinder; 18. Air pipe; 19. Pipe clamp hole; 20. Limit plate; 21. Guide groove; 22. Torsion spring; 23. Pivot;

[0033] 121. cargo cavity; 122. loading and unloading port; 123. bottom plate; 124. telescopic seat; 125. top plate; 126. partition; 127. air supply pipe; 128. storage area;

[0034] 1241, first gas transmission channel; 1242, first plate body; 1243, second plate body; 1244, first air hole; 1245, second air hole; 1246, sliding channel; 1247, third air hole; 1248, sealing plug; 1249, vent hole;

[0035] 1261. Air inlet; 1262. Second air transmission channel; 1263. Air outlet. DETAILED DESCRIPTION

[0036] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "fixed", "connected", "communicated", "abutted", "clamped" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0041] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0042] Unless specifically stated or defined otherwise, the term “and / or” used in the present invention includes any and all combinations of one or more of the associated listed items.

[0043] For the convenience of description, unless otherwise specified, the above and below mentioned below are Figure 1 The up and down directions are consistent with the Figure 1 The left and right directions of the Figure 2 The left and right directions are consistent.

[0044] If a cold chain logistics vehicle uses a larger box to load less goods, it will cause a waste of space. When the cold chain logistics vehicle is driving, the goods are easy to move in the cargo cavity and cause damage, and additional fixing devices are required for the goods. Larger boxes need to take detours when encountering height restrictions, and the weight of using larger boxes will also increase, greatly increasing the transportation cost. Therefore, existing cold chain logistics vehicles need to replace suitable boxes according to the quantity of goods, resulting in many sizes and types of boxes required. The storage of boxes of various sizes and types is troublesome, which also leads to higher transportation costs.

[0045] like Figures 1 to 5 As shown, this embodiment provides a cold chain logistics vehicle, including a vehicle body 11, a box body 12, a door body 13, and a refrigerator 14. The box body 12 has a cargo cavity 121 and a loading and unloading port 122 connected to the cargo cavity 121. The cargo cavity 121 is used to store goods. The cargo cavity 121 is connected to the outside of the box body 12 through the loading and unloading port 122. The loading and unloading port 122 can be used to load and unload goods. The box body 12 is installed on the vehicle body 11, and the vehicle body 11 includes a frame and wheels rotatably installed on the frame. The door body 13 is movably installed on the box body 12 to cover or stay away from the loading and unloading port 122. The movable installation includes detachable installation, rotating installation, sliding installation and other methods. The refrigerator 14 has a refrigeration channel and is installed on the box body 12. The refrigerator 14 includes air conditioners, refrigerants, heat pump units and other equipment.

[0046] The box body 12 includes a bottom plate 123, a plurality of telescopic seats 124 arranged on the bottom plate 123, and a top plate 125 arranged at intervals from the bottom plate 123 and installed on each telescopic seat 124. The bottom plate 123 is installed on the vehicle body 11, and the telescopic seats 124 can be telescoped up and down so as to change the size of the box body 12 in the vertical direction, thereby changing the size of the cargo chamber 121. The plurality of telescopic seats 124 are all located between the bottom plate 123 and the top plate 125 and are connected in sequence. There are at least three telescopic seats 124, and the plurality of telescopic seats 124 are connected in sequence along the circumference of the bottom plate 123. In this embodiment, there are three telescopic seats 124, the lower end of one telescopic seat 124 is connected to the front side of the bottom plate 123, and the lower ends of the remaining two telescopic seats 124 are respectively arranged on the left and right sides of the bottom plate 123. The three telescopic seats 124 can directly serve as the left side plate, the right side plate, and the front side plate of the box body, and the door body 13 serves as the rear side plate, so as to achieve the closure of the box body when the door body 13 is closed. The top plate 125 is located above the three telescopic seats 124 and is connected to the upper ends of the three telescopic seats 124 at the same time. The loading and unloading port 122 is located at the rear of the box body 12. When there is one door body 13, it can be installed on the rear side of the bottom plate 123 or the rear side of the top plate 125 or the rear side of any telescopic seat 124. When there are multiple door bodies 13, at least one door body 13 can be installed on one or more of the rear side of the bottom plate 123, the rear side of the top plate 125, and the rear side of the telescopic seat 124. When the door body 13 is installed on the telescopic seat 124, the door body 13 can be designed with different specifications to adapt to the telescopic movement of the telescopic seat 124. The door body 13 can also be telescoped up and down to adjust the length in the vertical direction like the telescopic seat 124. The bottom plate 123, the top plate 125, and a plurality of telescopic seats 124 are enclosed together to form a loading and unloading port 122 and a cargo cavity 121. A first gas transmission channel 1241 is formed inside at least one telescopic seat 124, and the refrigeration channel is connected to the cargo cavity 121 through the first gas transmission channel 1241. The first gas transmission channel 1241 is arranged in the telescopic seat 124, and the first gas transmission channel 1241 extends from top to bottom, which is convenient for the transmission of cold air, making it easier to cool the entire cargo cavity, and making the cold air distribution in the cargo cavity 121 more uniform. In traditional cold chain logistics vehicles, the gas transmission channel is arranged on the top plate or the bottom plate, and the cold air will be blocked by the cargo when it descends or rises, making the temperature of the upper and lower areas in the cargo cavity 121 uneven. There are also some cold chain logistics vehicles that use multiple pipe bodies to be arranged from top to bottom and pass through the side wall of the box body. The number of pipe bodies is large, which increases the complexity of the pipeline and the difficulty of installation.

[0047] In this way, the box body 12 of this embodiment can change the size or length of the box body 12 in the vertical direction by utilizing the extension and retraction of the telescopic seat 124, thereby realizing the adjustment of the size of the cargo cavity 121. The cold chain logistics vehicle can adjust the size of the box body 12 according to the amount of cargo, avoiding the waste of space caused by the box body 12 being too large and the excessive load of the vehicle body 11, and also reducing the increase in transportation resistance caused by the box body 12 being too large. The cold chain logistics vehicle of this embodiment does not need to frequently replace the box body 12 according to the amount of cargo, and the box body 12 has a wide range of applicability, which improves the efficiency of transportation and reduces transportation costs. At the same time, the telescopic seat 124 can be extended and retracted up and down, and the height of the box body can be changed, which can not only adjust the size of the cargo cavity 121, but also facilitate the adjustment of the height according to the height limit requirements of the transportation road.

[0048] Optionally, in the present embodiment, the bottom plate 123 and the top plate 125 are plates with fixed length and width. In other embodiments, the bottom plate 123 and the top plate 125 may also adopt a telescopic seat 124 to adjust the width or length of the box body 12 in the horizontal direction.

[0049] Furthermore, when the door body 13 and each telescopic seat 124 have the same structure, the door body 13 and each telescopic seat 124 both include a first plate 1242 having a first air hole 1244 and a second plate 1243 having a second air hole 1245. The first air hole 1244 penetrates the first plate 1242 from top to bottom, and the second air hole 1245 penetrates the second plate 1243 from top to bottom. There are multiple first plates 1242 and they are arranged in sequence along a predetermined path. The first plate 1242 at one end of the predetermined path is connected to the bottom plate 123, and the first plate 1242 at the other end of the predetermined path is connected to the top plate 125. A second plate 1243 is provided between two adjacent first plates 1242, and one end of the second plate 1243 is slidably disposed in the first air hole 1244 of one of the first plates 1242, and the other end of the second plate 1243 is slidably disposed in the first air hole 1244 of the other first plate 1242, and the first air hole 1244 and the second air hole 1245 are alternately connected to form a first air transmission channel 1241. Specifically, the predetermined path is a straight path along the vertical direction, and there are multiple first plates 1242 and second plates 1243, and the first plates 1242 and second plates 1243 are alternately distributed along the vertical direction. The upper end of the second plate 1243 is slidably disposed in the first air hole 1244 of the first plate 1242 located above it, and the lower end of the second plate 1243 is slidably disposed in the first air hole 1244 of the first plate 1242 located below it, so that the first plate 1242 and the second plate 1243 can slide relative to each other, thereby realizing the adjustment of the size of the door body 13 and each telescopic seat 124 in the vertical direction. It is understandable that after the size adjustment of the door body 13 and each telescopic seat 124 in the vertical direction is completed, the first plate 1242 and the second plate 1243 can be locked by components such as a lock buckle and a lock pin, or the first plate 1242 and the second plate 1243 can be locked by a driver such as a cylinder 17, a telescopic rod, or a hydraulic cylinder. Thus, the box body 12 is provided with a telescopic function, and the strength of the front, left and right sides of the box body 12 is improved; of course, the user can also install a support member and a stop member for supporting the box body 12 on the vehicle body 11 when the strength of the box body 12 needs to be further strengthened. The first air hole 1244 is not only used as a sliding installation space for the second plate body 1243, but also used to communicate with the second air hole 1245 to form a first air transmission channel 1241.

[0050] In one embodiment, the box body 12 further includes a partition 126 and an air supply pipe 127 disposed on the partition 126. The partition 126 can be used to store the box to support the goods. There is at least one partition 126. A plurality of partitions 126 are detachably installed on the first plate body 1242 in sequence along a predetermined path and divide the cargo cavity 121 into a plurality of storage areas 128. The plurality of partitions 126 are arranged in sequence from top to bottom to divide the cargo cavity 121 into a plurality of storage areas 128. The partition 126 can be installed on part of the first plate body 1242 to form storage areas 128 of different heights. When the first plate body 1242 slides up and down relative to the second plate body 1243 to adjust the height of the box body 12, the partition 126 can also move up and down accordingly, thereby changing the height of the storage area 128, so that each storage area 128 can be adapted to different goods.

[0051] Each partition 126 is provided with an air inlet 1261, a second air delivery channel 1262, and an air outlet 1263 which are connected in sequence. The air outlet 1263 is located on the upper end surface of the partition 126, and the second air delivery channel 1262 is located inside the partition 126. Air inlets 1261 are provided on both sides of the partition 126, and the air inlets 1261 are connected with air supply pipes 127. The first air delivery channel 1241 is connected with the air inlet 1261 through the air supply pipe 127, and the air outlet 1263 of any partition 126 is connected with the storage area 128 located above it, so that the cold air generated by the refrigerator 14 enters the first air delivery channel 1241 from the refrigeration channel, then enters the second air delivery channel 1262 through the air supply pipe 127, and finally enters each storage area 128 from the air outlet 1263, so as to realize refrigeration of the goods.

[0052] Furthermore, the cold chain logistics vehicle further includes a baffle 15 and an elastic member 16. A sliding channel 1246 and a third air hole 1247 are provided in the first plate body 1242. The first air hole 1244 is communicated with the cargo cavity 121 through the third air hole 1247. The sliding channel 1246 extends from top to bottom. The sliding channel 1246 is communicated with the third air hole 1247. The baffle 15 is slidably arranged in the sliding channel 1246 to cover or stay away from the third air hole 1247. The elastic member 16 is installed in the sliding channel 1246 and is used to apply elastic force to the baffle 15 so that the baffle 15 covers the third air hole 1247. Specifically, two baffles 15 and two elastic members 16 are provided in the sliding channel 1246 of each first plate body 1242. The elastic member 16 is a spring. The third air hole 1247 is located between the two elastic members 16, and the third air hole 1247 is located on the moving path of the two baffles 15. The two baffles 15 are arranged at intervals from top to bottom, and the baffles 15 are staggered in the horizontal direction. Under the action of the spring, the two baffles 15 are close to each other and cover the third air hole 1247, which can prevent cold air from entering the cargo cavity 121. When the partition 126 is installed, the air supply pipe 127 on the partition 126 can push the two baffles 15 to overcome the elastic force of the spring, and the two baffles 15 are separated from each other and form a clamping hole 19 for the air supply pipe 127 to pass through, so that the first air hole 1244, the third air hole 1247, the air supply pipe 127, the second air delivery channel 1262, and the cargo cavity 121 are connected in sequence. Each storage area 128 has an independent second air delivery channel 1262 to realize air supply, so that each area in the entire cargo cavity 121 is cooled more evenly and at a faster speed.

[0053] In other embodiments, the partition 126 may not be provided. In the case where the partition 126 is not provided, cold air can directly enter the box body 12 through the first air delivery channel 1241 and the third air hole 1247 .

[0054] In one embodiment, a slide groove is further provided on the first plate 1242, and the slide groove extends in the horizontal direction. The slide groove is located on the inner wall of the cargo cavity 121, and one end of the sliding channel 1246 and the third air hole 1247 are both connected to the slide groove, one end of the partition 126 is slidably arranged in the slide groove, and the baffle 15 is located on the sliding path of the air supply pipe 127. When the air supply pipe 127 moves to the third air hole 1247, the two baffles 15 are pushed open, so that the air supply pipe 127 is connected to the first air hole 1244 through the third air hole 1247.

[0055] Optionally, a limit plate 20 is provided on the inner wall of the sliding channel 1246, and the elastic member 16 is clamped between the limit plate 20 and the baffle 15. When the two baffles 15 are close to each other, a guide groove 21 is formed, and the guide groove 21 is V-shaped. When the air supply pipe 127 moves to the third air hole 1247, it is inserted into the guide groove 21, which facilitates pushing the inner wall of the guide groove 21 to separate the two baffles 15 from each other. When the partition 126 is disassembled, the baffle 15 automatically returns to its original position under the action of the elastic member 16 to block the third air hole 1247.

[0056] Furthermore, the two baffles 15 are hinged to each other through a pivot 23, and a torsion spring 22 is installed on the pivot 23, one end of the torsion spring 22 is connected to one of the baffles 15, and the other end of the torsion spring 22 is connected to the other baffle 15. In this way, the torsion spring 22 increases the elastic force that brings the two baffles 15 closer to each other.

[0057] In one embodiment, the refrigerator 14 has a plurality of refrigeration modules, and sealing plugs 1248 are provided at both ends of the second plate 1243. The second plate 1243 is slidably arranged in the first air hole 1244 through the sealing plugs 1248. The plurality of sealing plugs 1248 separate the first gas transmission channel 1241 into a plurality of temperature control chambers, and each temperature control chamber is independent of each other. The plurality of refrigeration modules, the plurality of temperature control chambers, and the plurality of storage areas 128 correspond one to one. The plurality of refrigeration modules can realize refrigeration at different temperatures and form different refrigeration channels. Different refrigeration channels are connected to different temperature control chambers through different gas transmission pipes 18, so that different storage areas 128 have different temperatures, which is convenient for providing different refrigeration temperatures for different goods. The existing box 12 has mainly one internal temperature zone, and cannot simultaneously transport goods with greatly different refrigeration temperature requirements. The box 12 of this embodiment can meet the refrigeration temperature requirements of different goods and has a wider applicability.

[0058] Optionally, a vent hole 1249 is provided on the sealing plug 1248. The first vent hole 1244 is connected to the second vent hole 1245 through the vent hole 1249. When the temperature required by the storage area 128 is consistent, the vent hole 1249 on the sealing plug 1248 can be opened to make the temperature of the storage area 128 consistent. When the temperature required by the storage area 128 is inconsistent, the vent hole 1249 can be sealed.

[0059] In one embodiment, a heat-insulating layer is provided inside the first plate 1242 and the second plate 1243. The heat-insulating layer is a material with good heat-insulating performance such as foam, which improves the heat-insulating performance of the box 12. In addition, a heat-insulating layer can also be provided inside the door 13, the bottom plate 123, and the top plate 125.

[0060] In one embodiment, the cold chain logistics vehicle further includes a cylinder 17. Adjacent first plates 1242 are connected by the cylinder 17. By controlling the piston extension of the cylinder 17, the automatic adjustment of the telescopic seat 124 is achieved.

[0061] Optionally, the door body 13 is detachably mounted on the box body 12 or rotatably mounted on the box body 12 via a hinge. Specifically, the structure of the door body 13 is the same as that of the telescopic seat 124, and the telescopic seats 124 on the left and right sides of the bottom plate 123 are both provided with door bodies 13, and the efficiency of opening the loading and unloading port 122 is improved by the two door bodies 13.

[0062] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A cold chain logistics vehicle, characterized in that: include: Vehicle body (11); A box body (12) having a cargo cavity (121) and a loading and unloading port (122) communicating with the cargo cavity (121); the box body (12) is installed on the vehicle body (11); A door body (13) movably mounted on the box body (12) to cover or keep away from the loading and unloading opening (122); and A refrigerator (14) having a refrigeration channel and installed on the box (12); The box body (12) comprises a bottom plate (123), a plurality of telescopic seats (124) arranged on the bottom plate (123), and a top plate (125) arranged at intervals from the bottom plate (123) and installed on each of the telescopic seats (124); the plurality of telescopic seats (124) are all located between the bottom plate (123) and the top plate (125) and are connected in sequence; the bottom plate (123), the top plate (125), and the plurality of telescopic seats (124) together enclose the loading and unloading port (122) and the cargo cavity (121); a first gas transmission channel (1241) is formed inside at least one of the telescopic seats (124); and the refrigeration channel is communicated with the cargo cavity (121) through the first gas transmission channel (1241).

2. The cold chain logistics vehicle according to claim 1, characterized in that: The door body (13) and each of the telescopic seats (124) include a first plate body (1242) having a first air hole (1244) and a second plate body (1243) having a second air hole (1245); there are a plurality of the first plate bodies (1242) which are sequentially arranged along a predetermined path, the first plate body (1242) located at one end of the predetermined path is connected to the bottom plate (123), and the first plate body (1242) located at the other end of the predetermined path is connected to the top plate (125); The second plate body (1243) is disposed between two adjacent first plates (1242), and one end of the second plate body (1243) is slidably disposed in the first air hole (1244) of one of the first plates (1242), and the other end of the second plate body (1243) is slidably disposed in the first air hole (1244) of the other first plate body (1242), and the first air hole (1244) and the second air hole (1245) are alternately connected to form the first air transmission channel (1241).

3. The cold chain logistics vehicle according to claim 2, characterized in that: The box body (12) further comprises a partition (126) and an air supply pipe (127) arranged on the partition (126); there is at least one partition (126), and a plurality of the partitions (126) are detachably mounted on the first plate body (1242) in sequence along the predetermined path and divide the cargo chamber (121) into a plurality of storage areas (128); Each of the partitions (126) is provided with an air inlet (1261), a second air delivery channel (1262), and an air outlet (1263) which are connected in sequence; the first air delivery channel (1241) is connected to the air inlet (1261) via the air supply pipe (127); and the air outlet (1263) of any partition (126) is connected to the storage area (128) located above it.

4. The cold chain logistics vehicle according to claim 3, characterized in that: The invention also comprises a baffle (15) and an elastic member (16); a sliding channel (1246) and a third air hole (1247) are provided in the first plate body (1242); the first air hole (1244) is communicated with the cargo cavity (121) through the third air hole (1247); the sliding channel (1246) is communicated with the third air hole (1247); the baffle (15) is slidably arranged on the sliding channel (1246) to cover or stay away from the third air hole (1247); the elastic member (16) is installed on the sliding channel (1246) and is used to apply elastic force to the baffle (15) so that the baffle (15) covers the third air hole (1247).

5. The cold chain logistics vehicle according to claim 4, characterized in that: The first plate body (1242) is also provided with a slide groove, and the slide groove is located on the inner wall of the cargo cavity (121). One end of the sliding channel (1246) and the third air hole (1247) are both connected to the slide groove. One end of the partition (126) is slidably arranged in the slide groove and the baffle (15) is located on the sliding path of the air supply pipe (127).

6. The cold chain logistics vehicle according to claim 4, characterized in that: The refrigerator (14) has a plurality of refrigeration modules, and sealing plugs (1248) are provided at both ends of the second plate body (1243). The second plate body (1243) is slidably arranged in the first air hole (1244) through the sealing plugs (1248). The plurality of sealing plugs (1248) divide the first air transmission channel (1241) into a plurality of temperature control cavities; the plurality of refrigeration modules, the plurality of temperature control cavities, and the plurality of storage areas (128) correspond one to one.

7. The cold chain logistics vehicle according to claim 6, characterized in that: The sealing plug (1248) is provided with a vent hole (1249), and the first vent hole (1244) is connected to the second vent hole (1245) through the vent hole (1249).

8. The cold chain logistics vehicle according to claim 2, characterized in that: Both the first plate body (1242) and the second plate body (1243) are provided with a thermal insulation layer.

9. The cold chain logistics vehicle according to claim 2, characterized in that: It also includes a cylinder (17); adjacent first plates (1242) are connected via the cylinder (17).

10. The cold chain logistics vehicle according to any one of claims 1 to 6, characterized in that: The door body (13) is detachably mounted on the box body (12) or rotatably mounted on the box body (12) via a hinge.

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