A stackable modular transportation and preservation container for agricultural and sideline products

Abstract

The present invention provides a stackable modular transportation and preservation container for agricultural and sideline products, belonging to the field of product transportation; it includes a preservation housing and a heat preservation door panel. The heat preservation door panel is movably connected to the front side wall of the preservation housing. An equipment installation component is provided on the rear side wall of the preservation housing. The preservation housing is hollow and fixedly connected with fixed pipes symmetrically on the left and right. There are four fixed pipes on one side, arranged in a "well" shape. A movable rod is movably connected in each fixed pipe. Linkage movable components are arranged at the staggered positions of the movable rods. The linkage movable component includes an installation groove, and two installation grooves are symmetrically formed on each movable rod. The present invention can install different equipment according to the needs of different agricultural and sideline products, and create different transportation environments in different preservation housings through different equipment, realizing the modular function and facilitating the transportation and use of different agricultural and sideline products.

Description

Technical Field

[0001] The present invention relates to the technical field of product transportation, and particularly relates to a stackable modular transportation and fresh-keeping container for agricultural and sideline products. Background Art

[0002] With the development of agricultural modernization, the scale and scope of transportation of agricultural and sideline products have been continuously expanding. During transportation, it is crucial to maintain the freshness of agricultural and sideline products, which not only relates to the quality and taste of the products, but also directly affects the selling price and market competitiveness.

[0003] In order to meet the need for fresh-keeping of agricultural and sideline products, the prior art CN101554941B discloses a multifunctional decompression storage device, including a sealed storage chamber, characterized in that: an air extraction system, a humidification and ventilation system, an industrial automation control system and a heat preservation system are provided in the sealed storage chamber; a pressure transmitter, a first temperature sensor and a relative humidity transmitter are provided in the sealed storage chamber; the air extraction system has two configurations: a vacuum pump provided outside is connected to the sealed storage chamber through a pipeline, and a bypass valve is connected in the pipeline, or a vacuum pump electrically connected to a frequency converter is connected to the sealed storage chamber through a pipeline; the humidification and ventilation system: a flow meter is provided in the intake pipe opening outward, a humidity meter is inserted into the water tank, and is connected to the sealed storage chamber through a supply pipe and a supply air valve. There is water in the water tank, and a heater is provided in the water. The intake pipe passes through the water in the water tank and then is connected to the storage chamber through the supply pipe; the humidity meter is an expansion valve with a Venturi tube structure; the industrial automation control system is: the pressure transmitter, the first temperature sensor and the relative humidity transmitter are used as input signals, and the programmable logic controller PLC and the touch screen pre-program are respectively used to start, close and regulate the air extraction system, the humidification and ventilation system and the heat preservation system; the heat preservation system is: a heat insulation cavity and a refrigeration system provided outside the sealed storage chamber, and the heat insulation cavity includes a heat preservation enclosure and a heat preservation door; the refrigeration system includes a refrigeration unit and a cooling component. Through the above technical solutions, the activities and reproduction of bacteria, especially aerobic molds, can be prevented, so that the stored products are not easily mildewed and deteriorated; insects inside and outside the stored products are killed to eliminate pests; the concentration of volatile polluting gases in the storage environment is reduced to less than 2% to prevent food poisoning; the high relative humidity makes the water loss rate of the stored products the lowest; the original appearance (color and shape), taste, texture and nutrients of the stored products are maintained to the greatest extent; the oxidation of the stored products is most effectively inhibited, and the transportation and fresh-keeping functions of agricultural and sideline products are realized.

[0004] However, the existing fresh-keeping technology has the following problems when in use. First, the volume of the entire device and system is large, so that the fresh-keeping technology can only be realized in a fixed manner and cannot be applied to the transportation and fresh-keeping of agricultural and sideline products, greatly limiting the scope of use; second, the volume of the sealed storage chamber is large, which not only cannot meet the transportation operation, but also has great deficiencies in stacking and the reliability after stacking, further limiting the application of the transportation and fresh-keeping of agricultural and sideline products.

[0005] For the above reasons, the present invention proposes a stackable modular transportation and preservation container for agricultural and sideline products to solve the above problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a stackable modular transportation and preservation container for agricultural and sideline products, which has the advantages of container modularity and firm stacking.

[0007] To solve the above technical problems, the present invention provides the following technical solutions:

[0008] A stackable modular transportation and preservation container for agricultural and sideline products, including a preservation housing. A heat preservation door panel is movably connected to the front side wall of the preservation housing. An equipment installation component is provided on the rear side wall of the preservation housing. The preservation housing is hollow and fixedly connected with fixing tubes symmetrically on the left and right. There are four fixing tubes on one side, arranged in a "well" shape. Each fixing tube is movably connected with a movable rod. Linkage movable components are arranged at the staggered positions of the movable rods. The linkage movable component includes an installation groove. Two installation grooves are symmetrically formed on each movable rod. The adjacent two movable rods are arranged staggered between the installation grooves. Rack bars are fixedly connected to the side walls of the installation grooves. The same gear column is meshed between the adjacent two rack bars. A round shaft is fixedly connected to the center of the side wall of the gear column. Both ends of the round shaft are movably connected to the inner wall of the fixing tube. A telescopic driving component is arranged between the upper two fixing tubes of the preservation housing. Stacking locking components are arranged at the top ends of the vertical movable rods and at the right ends of the horizontal movable rods.

[0009] Preferably, the equipment installation component includes a movable housing. Four movable housings are movably connected symmetrically on the left and right to the rear side wall of the preservation housing. The same installation plate is movably connected inside the two movable housings on the same side. First springs are fixedly connected inside the movable housings. The other ends of the first springs are fixedly connected to the installation plate. Installation holes are formed on the installation plates.

[0010] Preferably, the telescopic driving component includes a motor. A threaded rod is fixedly connected to the rotor of the motor. The end of the threaded rod away from the motor is movably connected to a side plate. The side plate is fixedly connected to the top surface of the inner cavity of the preservation housing. A vertical plate is threadedly connected to the side wall of the threaded rod. A connecting plate is fixedly connected to the bottom surface of the vertical plate. Horizontal grooves are formed on the preservation housing and the upper two fixing tubes. Both sides of the connecting plate respectively penetrate through the horizontal grooves on both sides and are fixedly connected between the upper two movable rods.

[0011] Preferably, the stacking locking assembly includes side holes, a plurality of side holes are evenly distributed at the top end of the movable rod vertically, and a plurality of side holes are evenly distributed at the right end of the movable rod horizontally, a second spring is fixedly connected in each of the side holes, and a positioning rod is fixedly connected to the other end of the second spring, a plurality of positioning grooves are evenly distributed in the inner cavity of the fixed tube near the bottom end vertically, and a plurality of positioning grooves are evenly distributed in the inner cavity of the fixed tube near the left end horizontally.

[0012] Preferably, the positioning rod extends out of a side hole at one end away from the second spring and is arranged in a conical shape, and the positioning groove and the positioning rod are arranged to match each other.

[0013] Preferably, the outer side wall of the motor is provided with a protective shell, and the protective shell is fixedly connected to the top surface of the inner cavity of the fresh-keeping shell.

[0014] Preferably, the length of the movable rod is set to be the same as the length of the fixed tube, the diameter of the movable rod is set to be the same as the inner diameter of the fixed tube, the top side wall of the vertical movable rod is provided with a rounded corner, and the right side wall of the horizontal movable rod is provided with a rounded corner.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] The present invention is provided with a heat-insulating shell and an equipment mounting assembly. The installer pulls the mounting plate, so that the mounting plate drives the first spring to stretch and move, and the designated equipment is placed in the position between the movable shells. The mounting plate is loosened, and under the action of the first spring, the mounting plate is pressed against the side wall of the designated equipment. The position of the equipment is adjusted, and fasteners are used to penetrate the mounting holes to achieve the installation and fixation between the mounting plate and the equipment. Different equipment can be installed according to the needs of different agricultural and sideline products, and different transportation environments can be created in different fresh-keeping shells by using different equipment, thereby realizing modular functions and facilitating the transportation of different agricultural and sideline products.

[0017] The present invention is provided with a linkage movable component, a telescopic driving component and a stacking locking component. When in use, the two upper movable rods are driven by the motor to move in the fixed tube, and under the meshing movement and linkage action between the rack and the gear column, the top and right ends of the movable rods can be extended out of the inner cavity of the fixed tube. When the fresh-keeping shells are stacked, the top and right ends of the movable rods are inserted into the inner cavity of the fixed tube on the side wall of the adjacent fresh-keeping shell, and under the action of the second spring, the positioning rods are inserted into the positioning groove, so that the stacking locking between the adjacent fresh-keeping shells can be achieved, which can effectively improve the transportation reliability and stability of the modular thermal insulation container. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0019] Figure 1 is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0020] Figure 2 is a schematic diagram of the overall side three-dimensional structure of the present invention;

[0021] Figure 3 is a schematic diagram of the stacked installation structure of the present invention;

[0022] Figure 4 is a schematic diagram of the sectional three-dimensional structure of the present invention;

[0023] Figure 5 is a schematic diagram of the internal three-dimensional structure of the fresh-keeping housing of the present invention;

[0024] Figure 6 is a schematic diagram of the internal three-dimensional structure of the fixed tube of the present invention;

[0025] Figure 7 is a schematic diagram of the three-dimensional structure of the telescopic drive assembly of the present invention;

[0026] Figure 8 is a schematic diagram of the three-dimensional structure of the equipment installation assembly of the present invention;

[0027] Figure 9 is a schematic diagram of the three-dimensional structure of the linkage activity assembly of the present invention;

[0028] Figure 10 is a schematic diagram of the three-dimensional structure of the stacking locking assembly of the present invention.

[0029] [Reference Numerals]

[0030] 1. Fresh-keeping housing; 2. Heat-insulating door panel; 3. Equipment installation assembly; 4. Fixed tube; 5. Movable rod; 6. Linkage activity assembly; 7. Telescopic drive assembly; 8. Stacking locking assembly; 9. Protective shell; 10. Movable shell; 11. Mounting plate; 12. First spring; 13. Mounting hole; 14. Mounting groove; 15. Rack; 16. Gear column; 17. Round shaft; 18. Motor; 19. Threaded rod; 20. Side plate; 21. Vertical plate; 22. Connecting plate; 23. Horizontal groove; 24. Side hole; 25. Second spring; 26. Positioning rod; 27. Positioning groove.

[0031] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are labeled in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included within the scope of the appended claims. Detailed implementation manners

[0032] The following will describe in detail a stackable modular agricultural and sideline products transportation and preservation container provided by the present invention with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0033] It should be noted that when referring to "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. in the specification, it indicates that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge scope of those skilled in the relevant art.

[0034] Generally, terms can be understood at least in part from their use in the context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, allowing for the existence of other factors that may not be explicitly described.

[0035] It can be understood that the meanings of "on...", "above...", and "over..." in the present disclosure should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0036] In addition, spatial relative terms such as "under", "below", "lower part", "above", "upper part", etc. may be used in this text for convenience of description to describe the relationship between one element or feature and another or more elements or features, as shown in the attached drawings. The spatial relative terms are intended to cover different orientations during the use or operation of the device other than the orientation depicted in the attached drawings. The device may be oriented in other ways, and the spatial relative descriptive terms used in this text may be correspondingly interpreted similarly.

[0037] As Figure 1-10 shown, an embodiment of the present invention provides a stackable modular agricultural and sideline products transportation and preservation container, including a preservation housing 1. A heat preservation door panel 2 is movably connected to the front side wall of the preservation housing 1. An equipment installation component 3 is provided on the rear side wall of the preservation housing 1. The equipment installation component 3 includes a movable housing 10. Four movable housings 10 are symmetrically and movably connected to the left and right on the rear side wall of the preservation housing 1. The same mounting plate 11 is movably connected within two movable housings 10 on the same side. A first spring 12 is fixedly connected within each movable housing 10. The other end of the first spring 12 is fixedly connected to the mounting plate 11. Mounting holes 13 are formed on the mounting plates 11.

[0038] In the technical solution of this embodiment, by the installer pulling the mounting plate 11, the mounting plate 11 is caused to stretch the first spring 12. The designated equipment is placed at the position between the movable housings 10. The mounting plate 11 is released. Under the action of the first spring 12, the mounting plate 11 is pressed against the side wall of the designated equipment. By adjusting the position of the equipment, fasteners are passed through the mounting holes 13 to achieve the installation and fixation between the mounting plate 11 and the equipment. Different equipment can be installed according to the needs of different agricultural and sideline products, and different transportation environments can be created in different preservation housings 1 through different equipment, realizing the modular function and facilitating the transportation and use of different agricultural and sideline products.

[0039] The preservation housing 1 is hollow and fixedly connected with fixed tubes 4 symmetrically on the left and right. There are four fixed tubes 4 on one side arranged in a "well" shape. A movable rod 5 is movably connected within each fixed tube 4. Linkage movable components 6 are provided at the staggered positions of the movable rods 5. The linkage movable components 6 include mounting grooves 14. Two mounting grooves 14 are symmetrically formed on each movable rod 5. The adjacent two movable rods 5 are arranged staggeredly between the mounting grooves 14. A rack 15 is fixedly connected to the side wall of each mounting groove 14. The same gear column 16 is meshed between the adjacent two racks 15. A round shaft 17 is fixedly connected to the center of the side wall of the gear column 16. Both ends of the round shaft 17 are movably connected to the inner wall of the fixed tube 4.

[0040] In the technical solution of this embodiment, when the two upper horizontal movable rods 5 move in the fixed tube 4, the racks 15 on the two upper movable rods 5 engage with the upper gear column 16 to rotate around the round shaft 17, and the upper gear column 16 engages with the rack 15 on the vertical movable rod 5 to move. The vertical rack 15 drives the vertical movable rod 5 to move, and the rack 15 in the other mounting groove 14 of the vertical movable rod 5 engages with the lower gear column 16 to rotate. The lower gear column 16 engages with the rack 15 on the lower horizontal movable rod 5 to move, and the lower rack 15 drives the lower movable rod 5 to move, which can realize the synchronous movement function of all the movable rods 5, thus facilitating the adjustment and installation operation of the stack;

[0041] A telescopic drive component 7 is arranged between the two upper fixed tubes 4 of the fresh-keeping shell 1. The telescopic drive component 7 includes a motor 18. A threaded rod 19 is fixedly connected to the rotor of the motor 18. The end of the threaded rod 19 far away from the motor 18 is movably connected with a side plate 20. The side plate 20 is fixedly connected to the top surface of the inner cavity of the fresh-keeping shell 1. A vertical plate 21 is threadedly connected to the side wall of the threaded rod 19. A connecting plate 22 is fixedly connected to the bottom surface of the vertical plate 21. Horizontal grooves 23 are formed on both the fresh-keeping shell 1 and the two upper fixed tubes 4. Both sides of the connecting plate 22 penetrate through the horizontal grooves 23 on both sides and are fixedly connected between the two upper movable rods 5;

[0042] In the technical solution of this embodiment, when the motor 18 is started, the motor 18 drives the threaded rod 19 to rotate. The threaded rod 19 engages with the vertical plate 21 to move. The vertical plate 21 drives the connecting plate 22 to move. The connecting plate 22 drives the two upper horizontal movable rods 5 to move in the fixed tube 4, which can make the top and right ends of the movable rod 5 extend out of the inner cavity of the fixed tube 4, facilitating the realization of the stacking and fixing operation;

[0043] Further, a protective shell 9 is sleeved on the outer side wall of the motor 18. The protective shell 9 is fixedly connected to the top surface of the inner cavity of the fresh-keeping shell 1, realizing the protection of the motor 18, avoiding the damage of the internal environment of the fresh-keeping shell 1 to the motor 18 and the pollution of the internal environment of the fresh-keeping shell 1;

[0044] Stacking locking components 8 are arranged at the top ends of the vertical movable rods 5, and stacking locking components 8 are arranged at the right ends of the horizontal movable rods 5. The stacking locking component 8 includes side holes 24. A plurality of side holes 24 are evenly distributed and formed at the top ends of the vertical movable rods 5. A plurality of side holes 24 are evenly distributed and formed at the right ends of the horizontal movable rods 5. Second springs 25 are fixedly connected in the side holes 24. The other ends of the second springs 25 are fixedly connected with positioning rods 26. A plurality of positioning grooves 27 are evenly distributed and formed at the near-bottom end of the inner cavity of the vertical fixed tube 4. A plurality of positioning grooves 27 are evenly distributed and formed at the near-left end of the inner cavity of the horizontal fixed tube 4. The end of the positioning rod 26 far away from the second spring 25 extends out of the side hole 24 and is arranged in a conical shape. The positioning groove 27 and the positioning rod 26 are arranged in a matching manner;

[0045] When the container 1 is stacked, the top and right ends of the movable rods 5 are inserted into the inner cavities of the fixing tubes 4 on the side walls of the adjacent container 1, and the positioning rods 26 are inserted into the positioning grooves 27 under the action of the second springs 25, so that the stacking lock between the adjacent container 1 can be achieved, which can effectively improve the transportation reliability and stability of the modular heat-insulating container. When the modular heat-insulating container needs to be separated and disassembled, the movable rods 5 are moved in the opposite direction, and the movable rods 5 drive the positioning rods 26 to move together. Because the positioning rods 26 are conically arranged at one end away from the second springs 25 and the positioning grooves 27 are matched with the positioning rods 26, the change in the depth of the positioning rods 26 in the positioning grooves 27 can cause the positioning rods 26 to push the second springs 25 to deform. When the conical end of the positioning rods 26 is completely out of the positioning grooves 27, the clamping lock between the positioning rods 26 and the positioning grooves 27 is released, so that the movable rods 5 are separated from the fixing tubes 4, thereby completing the unlocking function between the modular heat-insulating containers.

[0046] Furthermore, the length of the movable rod 5 is set to be the same as the length of the fixed tube 4, the diameter of the movable rod 5 is set to be the same as the inner diameter of the fixed tube 4, the top side wall of the vertical movable rod 5 is set with a rounded corner, and the right side wall of the horizontal movable rod 5 is set with a rounded corner, which can facilitate modularization and facilitate the insertion of the movable rod 5 into the inner cavity of the fixed tube 4.

[0047] Working principle: When this fresh-keeping container is in use, first install the variable-frequency pump and humidifying device for realizing the fresh-keeping of agricultural and sideline products on the fresh-keeping housing 1. The installer pulls the mounting plate 11, causing the first spring 12 to stretch. Place the variable-frequency pump and humidifying device at the position between the movable housing 10, and make the variable-frequency pump communicate with the inner cavity of the fresh-keeping housing 1 through a pipeline. Release the mounting plate 11. Under the action of the first spring 12, the mounting plate 11 is pressed against the side wall of the designated device. By adjusting the positions of the variable-frequency pump and humidifying device, use fasteners to pass through the mounting holes 13 to achieve the installation and fixation between the mounting plate 11 and the device. After the installation is completed, start the variable-frequency pump and humidifying device through the built-in power supply or external mobile power supply. Open the solenoid valve on the pipeline connected to the variable-frequency pump, and use the variable-frequency pump to evacuate the inner cavity of the fresh-keeping housing 1. Detect the internal vacuum condition through the pressure sensor on the side wall of the inner cavity of the fresh-keeping housing 1. When the inner cavity of the fresh-keeping housing 1 is in a vacuum environment, close the variable-frequency pump and the solenoid valve on the connecting pipeline, and start the solenoid valve on the pipeline of the humidifying device. Use the humidifying device to inject water mist into the inner cavity of the fresh-keeping housing 1 for humidification, complete the adjustment of the environment inside the fresh-keeping housing 1, ensure that the environment in the inner cavity of the fresh-keeping housing 1 meets the requirements for the fresh-keeping transportation of agricultural and sideline products, and complete the preparation function before use. Different devices can be installed according to the needs of different agricultural and sideline products, and different transportation environments can be created in different fresh-keeping housings 1 through different devices, realizing modular functions, facilitating the transportation and use of different agricultural and sideline products. Then place the agricultural and sideline products to be transported into the inner cavity of the designated fresh-keeping housing 1. Start the motor 18 according to the need for stacked transportation. The motor 18 drives the threaded rod 19 to rotate. The threaded rod 19 meshes with the vertical plate 21 to move. The vertical plate 21 drives the connecting plate 22 to move. The connecting plate 22 drives the two upper horizontal movable rods 5 to move in the fixed tube 4. The racks 15 on the two upper movable rods 5 mesh with the upper gear column 16 to rotate around the round shaft 17. The upper gear column 16 meshes with the rack 15 on the vertical movable rod 5 to move. The vertical rack 15 drives the vertical movable rod 5 to move. The rack 15 in the other installation groove 14 of the vertical movable rod 5 meshes with the lower gear column 16 to rotate. The lower gear column 16 meshes with the rack 15 on the lower horizontal movable rod 5 to move. The lower rack 15 drives the lower movable rod 5 to move, so that the top and right ends of the movable rod 5 extend out of the inner cavity of the fixed tube 4. When stacking and placing the fresh-keeping housing 1, insert the top and right ends of the movable rod 5 into the inner cavity of the fixed tube 4 on the side wall of the adjacent fresh-keeping housing 1, and under the action of the second spring 25, make the positioning rod 26 insert into the positioning groove 27, so as to achieve the stacking lock between adjacent fresh-keeping housings 1, which can effectively improve the transportation reliability and stability of the modular heat-insulating container.

[0048] The present invention covers any alternatives, modifications, equivalent methods, and solutions made to the essence and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without the description of these details. In addition, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0049] Those of ordinary skill in the art can understand that all or part of the steps in the methods of the above embodiments can be completed by instructing relevant hardware through a program, and this program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disks, optical disks, etc.

[0050] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A stackable modular agricultural and sideline product transport and preservation container, comprising a preservation shell (1), characterized in that: The front side wall of the fresh-keeping shell (1) is movably connected to a heat-insulating door panel (2), and the rear side wall of the fresh-keeping shell (1) is provided with an equipment installation assembly (3). The fresh-keeping shell (1) is hollow and fixedly connected to fixed tubes (4) symmetrically on the left and right. Four fixed tubes (4) are provided on each side and are arranged in a "well" shape. A movable rod (5) is movably connected in each fixed tube (4). The movable rods (5) are provided with linkage movable assemblies (6) at staggered positions. The linkage movable assemblies (6) include installation slots (14). Two installation slots (14) are symmetrically provided on each movable rod (5). Two adjacent mounting slots (14) are provided. The movable rods (5) are arranged in a staggered manner between the installation grooves (14); racks (15) are fixedly connected to the side walls of the installation grooves (14); a same gear column (16) is engaged between two adjacent racks (15); a circular shaft (17) is fixedly connected to the center of the side wall of the gear column (16); both ends of the circular shaft (17) are movably connected to the inner wall of the fixed tube (4); the fresh-keeping shell (1) is provided with a telescopic drive assembly (7) between the two upper fixed tubes (4); a stacking locking assembly (8) is provided at the top end of the vertical movable rod (5); and a stacking locking assembly (8) is provided at the right end of the horizontal movable rod (5).

2. The stackable modular agricultural and sideline product transportation and preservation container according to claim 1, characterized in that: The device mounting assembly (3) includes a movable shell (10), four movable shells (10) are symmetrically and movably connected to the rear side wall of the fresh-keeping shell (1), and the same mounting plate (11) is movably connected to the two movable shells (10) on the same side. A first spring (12) is fixedly connected to the movable shell (10), and the other end of the first spring (12) is fixedly connected to the mounting plate (11). The mounting plate (11) is provided with a mounting hole (13).

3. The stackable modular agricultural and sideline product transportation and preservation container according to claim 2, characterized in that: The telescopic drive assembly (7) includes a motor (18), a threaded rod (19) is fixedly connected to the rotor of the motor (18), and a side plate (20) is movably connected to one end of the threaded rod (19) away from the motor (18), and the side plate (20) is fixedly connected to the top surface of the inner cavity of the fresh-keeping shell (1), and a vertical plate (21) is threadedly connected to the side wall of the threaded rod (19), and a connecting plate (22) is fixedly connected to the bottom surface of the vertical plate (21). The fresh-keeping shell (1) and the two upper fixed tubes (4) are both provided with transverse grooves (23), and the two sides of the connecting plate (22) respectively penetrate the transverse grooves (23) on both sides and are fixedly connected to the two upper movable rods (5).

4. The stackable modular agricultural and sideline product transportation and preservation container according to claim 3, characterized in that: The stacking locking assembly (8) includes side holes (24), a plurality of side holes (24) are evenly distributed at the top end of the vertical movable rod (5), and a plurality of side holes (24) are evenly distributed at the right end of the horizontal movable rod (5). A second spring (25) is fixedly connected in each of the side holes (24), and a positioning rod (26) is fixedly connected to the other end of the second spring (25). A plurality of positioning grooves (27) are evenly distributed in the inner cavity of the vertical fixed tube (4) near the bottom end, and a plurality of positioning grooves (27) are evenly distributed in the inner cavity of the horizontal fixed tube (4) near the left end.

5. The stackable modular agricultural and sideline product transportation and preservation container according to claim 4, characterized in that: The positioning rod (26) extends out of the side hole (24) at one end away from the second spring (25) and is arranged in a conical shape. The positioning groove (27) and the positioning rod (26) are matched with each other.

6. The stackable modular agricultural and sideline product transportation and preservation container according to claim 5, characterized in that: The outer wall of the motor (18) is provided with a protective shell (9), and the protective shell (9) is fixedly connected to the top surface of the inner cavity of the fresh-keeping shell (1).

7. The stackable modular agricultural and sideline product transportation and preservation container according to claim 6, characterized in that: The length of the movable rod (5) is set to be the same as the length of the fixed tube (4), the diameter of the movable rod (5) is set to be the same as the inner diameter of the fixed tube (4), the top side wall of the vertical movable rod (5) is provided with a rounded corner, and the right side wall of the horizontal movable rod (5) is provided with a rounded corner.

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