Vegetable cold chain fresh-keeping device and cold chain fresh-keeping storehouse

Abstract

The invention discloses a vegetable cold-chain fresh-keeping device and a cold-chain fresh-keeping storehouse. The vegetable cold-chain fresh-keeping device comprises a cargo distribution box and an assembly pipeline vertically fixed to the outer side wall of the cargo distribution box. The assembling plate blocks the end, away from the cargo distribution box, of the assembling pipeline, and cold air inlets and mounting holes are formed in the assembling plate and the side wall, corresponding to the assembling plate, of the cargo distribution box; the air inlet opening and closing assembly comprises a baffle, a push rod, a check ring and a return spring; the baffle hermetically covers the inner wall of the cargo distribution box, and the surface of the baffle can block a cold air inlet of the cargo distribution box; the push rod is slidably connected into the mounting holes of the cargo distribution box and the assembly plate, one end of the push rod is fixed to the baffle, the other end of the push rod is located outside the assembly pipeline, and the cold air inlet can be opened or closed through the baffle and the push rod. The cold-chain fresh-keeping storehouse comprises a warehouse, goods shelves and a cold air pipeline are arranged in the warehouse, the cold air pipeline is hermetically sleeved with the assembly pipeline, and the top plate can push the push rod to move. According to the invention, an efficient and ordered supply chain form of supplying and taking goods can be formed, and modular development of the cold chain library is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of cold chain preservation, and more particularly to a vegetable cold chain preservation device and a cold chain preservation warehouse. Background Art

[0002] In the modern agricultural product circulation system, vegetable cold chain preservation equipment plays a vital role. These equipment effectively prolongs the shelf life of vegetables, reduces losses, and ensures the quality and safety of vegetables by controlling environmental factors such as temperature and humidity, thereby meeting the market's continuous demand for fresh vegetables.

[0003] In the current cold chain preservation practice, vegetable suppliers generally face a series of challenges, especially in the storage and shipment links in the fresh-keeping warehouse:

[0004] 1) Vegetables are often stored in large piles in the fresh-keeping warehouse, which not only takes up a lot of space, but also faces the problem of low efficiency in picking and shipping when merchants come to pick up the goods, which prolongs the waiting time of merchants and reduces the overall operational efficiency. What is more troublesome is that when multiple merchants come to pick up the goods at the same time, the scene in the fresh-keeping warehouse often becomes extremely chaotic. Suppliers need to process multiple orders in a short period of time, and the time arrangement becomes extremely tight. It is very easy to make mistakes in a hurry, such as wrong supply, missed supply, etc., which not only damages the interests of merchants, but also affects the reputation of suppliers;

[0005] 2) Suppliers need to frequently enter and exit the fresh-keeping warehouse during the picking and shipping process, which brings two negative effects. On the one hand, due to the huge temperature difference between the inside and outside of the fresh-keeping warehouse, frequent entry and exit poses a potential threat to the health of the staff, and may cause health problems such as colds and arthritis. On the other hand, each time the door is opened, a large amount of cold air in the fresh-keeping warehouse will leak out, which not only increases energy consumption and reduces the refrigeration efficiency of the fresh-keeping warehouse, but may also greatly reduce the preservation effect of vegetables and shorten the shelf life of vegetables.

[0006] Therefore, how to provide a vegetable cold chain preservation device and cold chain preservation warehouse that can form an efficient and orderly supply and pickup supply chain and realize the modular development of cold chain warehouses is an urgent problem that technical personnel in this field need to solve. Summary of the invention

[0007] In view of this, the present invention provides a vegetable cold chain preservation device and a cold chain preservation warehouse, aiming to solve the above technical problems.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] A vegetable cold chain preservation device, comprising:

[0010] Distribution box;

[0011] An assembly pipeline is vertically fixed on the outer wall of the distribution box;

[0012] An assembly plate is sealed at one end of the assembly duct away from the distribution box, and a cold air inlet and an installation hole are provided on the assembly plate and the side wall of the distribution box corresponding to the assembly plate;

[0013] The air inlet opening and closing assembly includes a baffle, a push rod, a retaining ring and a return spring. The baffle is sealed and covers the inner wall of the distribution box, and its plate surface can block the cold air inlet of the distribution box; the push rod is slidably connected to the mounting holes of the distribution box and the assembly plate, and one end of the push rod is fixed to the baffle, and the other end is located outside the assembly pipe; the retaining ring is located in the assembly pipe and is fixed to the outside of the push rod; the return spring is sleeved on the outside of the push rod and its two ends are tightly pressed between the retaining ring and the outer wall of the distribution box.

[0014] Through the above technical scheme, the present invention uses the device to form a new cold chain distribution mode. The cold chain supplier can store the vegetables supplied by the vegetable supplier into the corresponding distribution box in advance according to the supply order requirements, process and store them, and distribute the goods through the distribution box. When the distribution box is in use, the cold air inlet can be opened by setting the baffle and the push rod, so that when the distribution box is stored, the push rod can be pushed to supply cold air to the inside of the distribution box, thereby preserving and storing the vegetables in the distribution box; during transportation and transport, the push rod is released, the push rod returns to its original position under the action of the return spring and the baffle closes the cold air inlet for refrigeration; thereby shortening the waiting time of the merchants, improving the overall operational efficiency, and switching the cold air supply to the original cold storage to the cold air supply of a separate box, reducing the use of cold air and greatly saving costs.

[0015] Furthermore, on the assembly plate, the mounting hole is located in the center of the assembly plate, and there are multiple cold air inlets arranged around the mounting hole; the mounting holes and cold air inlets on the side wall of the distribution box corresponding to the assembly plate are arranged corresponding to the mounting holes and cold air inlets on the assembly plate.

[0016] Preferably, it also includes a sealing gasket, which is fixed on the plate surface of the baffle corresponding to the cold air inlet and blocks the cold air inlet of the distribution box.

[0017] The sealing gasket is interference fit with the cold air inlet on the side wall of the distribution box.

[0018] The above technical solution can improve the sealing performance of the cold air inlet when it is closed.

[0019] Preferably, a reinforcing sealing ring is further included, and an annular groove is provided on the inner side wall of the baffle corresponding to the distribution box, and the reinforcing sealing ring is fixed on the baffle and can be embedded in the groove; the reinforcing sealing ring and the groove are interference fit. The setting of this structure can achieve double sealing, further improving its sealing effect.

[0020] Furthermore, the elastic force of the return spring is greater than the friction force between the reinforced sealing ring and the slot, so that the reinforced sealing ring can be smoothly embedded in the slot when the return spring drives the baffle to block the cold air inlet.

[0021] Preferably, it also includes a slow wind plate, which is fixed to the inner wall of the distribution box and has a movable gap between it and the side wall of the distribution box corresponding to the cold air inlet, the baffle moves in the movable gap, and a plurality of slow wind holes are evenly opened on the slow wind plate. The slow wind plate can buffer and disperse the incoming cold air, guide the cold air to enter the distribution box in a more uniform manner, and avoid the cold air directly impacting the vegetables and causing damage. At the same time, the slow wind plate also helps to reduce the vortex and dead corners of the cold air in the distribution box, and improve the utilization efficiency of the cold air.

[0022] Preferably, the door of the distribution box is arranged on a side of the distribution box away from the assembly pipeline.

[0023] Preferably, a vegetable placement rack is further included, a vegetable placement area is formed between the slow wind plate and the box door, the vegetable placement rack is arranged in the vegetable placement area, and the vegetable placement rack adopts a conveyor belt structure, and multiple and multi-layered vegetable placement racks are provided. The arrangement of this structure can facilitate the loading and unloading of vegetable goods in the distribution box.

[0024] Furthermore, each vegetable placement rack includes two rotating shafts, a load plate, a conveyor belt and a rocker. The two rotating shafts are spaced apart and are both rotatably connected to the inner wall of the vegetable placement area. The load plate is fixed between the upper surfaces of the inner wall of the vegetable placement area corresponding to the two rotating shafts. The conveyor belt is wound around the outer surfaces of the two rotating shafts and the load plate and is tensioned. The rocker is located outside the distribution box and one end thereof is sealed and penetrates the side wall of the distribution box and is fixed to the rotating shaft. When vegetables need to be loaded and unloaded, the hand-cranked rocker can drive the conveyor belt to move the vegetables. The arrangement of this structure also avoids the electric structure, further reducing the cost.

[0025] Furthermore, a certain gap is reserved between the two ends of the conveyor belt corresponding to its conveying direction and the two sides perpendicular to its conveying direction and the side walls of the vegetable placement area. The gap can ensure smooth transmission of the conveyor belt and prevent vegetables on the conveyor belt from falling.

[0026] Preferably, an air outlet is provided on the distribution box, and the control logic of the air outlet is configured to open when the cold air inlet is opened, and close when the cold air inlet is blocked.

[0027] Furthermore, the air volume of the air outlet is adjustable.

[0028] The setting of this structure can achieve air circulation in the distribution box, which helps to reduce the carbon dioxide concentration between vegetable leaves, reduce residual ethylene gas, delay the aging and flamability of vegetables, and prevent vegetables from being damaged by excessively high or low humidity. It can also balance the temperature and air pressure inside and outside the distribution box, reduce the generation of condensation, and protect vegetables from damage.

[0029] Furthermore, the air outlet piece can be arranged on a side of the cargo box corresponding to the door to facilitate operation by the staff.

[0030] Furthermore, a pressure relief valve is provided at the top of the distribution box corresponding to the vegetable placement area. The air pressure inside and outside the distribution box can be automatically balanced through the arrangement of this structure.

[0031] The present invention also provides a cold chain fresh-keeping warehouse, comprising:

[0032] storehouse;

[0033] Shelves, there are multiple shelves and they are all set in the warehouse. Side panels are vertically fixed to the rear of the shelves. The distribution boxes are placed on the shelves and the assembly pipelines correspond to the side panels;

[0034] A cold air duct, one end of which is connected to the cold air system and is provided with a plurality of branch ducts, the branch ducts are vertically fixed to the side plate, and the outlet end thereof can be sealed and sleeved with the assembly duct and communicated with the assembly duct;

[0035] The top plate is fixed to the outlet end of the branch pipe through a connecting piece and can push the push rod to move to open the cold air inlet closed by the baffle.

[0036] Through the above technical scheme, by placing the distribution box on the shelf and sealing it with the branch pipe, the cold air supply in the distribution box can be realized, thereby realizing the preservation of vegetables in the distribution box. This structure can make the storage and picking process of vegetables more flexible and efficient; suppliers can prepare and store the vegetables required by each merchant in advance according to the order requirements. When the merchant picks up the goods, they only need to find the corresponding distribution box to realize fast delivery, which reduces the picking time and error rate, improves work efficiency, forms an efficient and orderly supply chain form of supply and collection, and realizes the modular development of cold chain warehouses; through the setting of the top plate, the branch pipe can automatically push the push rod to move when it is connected to the assembly pipe, thereby opening the cold air inlet, realizing the preservation and storage of vegetables in the distribution box, and the setting of this structure can realize the precise discharge of cold air to the distribution box when needed, avoiding the existence of a large amount of cold air in the fresh-keeping warehouse, on the one hand, reducing the potential threat to the health of the staff posed by the huge temperature difference between the inside and outside of the fresh-keeping warehouse; on the other hand, it reduces energy consumption and greatly reduces costs.

[0037] Furthermore, each branch pipeline is provided with a cold air switch valve.

[0038] Furthermore, an assembly hole is provided on the side plate, the outlet end of the branch pipe is fixed in the assembly hole, and the assembly hole can be sealed and sleeved on the outside of the assembly pipe.

[0039] Furthermore, rollers may be provided at the bottom of the distribution box, or rollers may be provided on the shelf to facilitate movement of the distribution box.

[0040] Preferably, an automatic locking assembly is installed between the distribution box and the side plate. The arrangement of this structure can further ensure the connection stability between the branch pipe and the assembly pipe.

[0041] Furthermore, the automatic locking assembly includes an L-shaped plate, a wedge block, a telescopic spring and a locking block. The L-shaped plate is fixed to one side of the side plate corresponding to the distribution box and a mounting groove is formed between the L-shaped plate and the side plate, and the opening of the mounting groove faces the branch pipe; the wedge block is located in the mounting groove and is connected to the bottom of the mounting groove through a telescopic spring; the locking block is fixed to the outer side wall of the side plate corresponding to the distribution box and is in an inverted wedge shape facing the side of the mounting groove. When the distribution box needs cold air, the distribution box is moved toward the side plate, and the locking block moves accordingly, and its inclined surface pushes the wedge block to move toward the bottom of the mounting groove and clamps the wedge block to lock the branch pipe and the distribution box.

[0042] It also includes a pull wire, a through hole is opened at the bottom of the installation groove, one end of the pull wire is fixed to the wedge block, and the other end thereof passes through the through hole and is located on the side of the shelf away from the side plate; the telescopic spring is sleeved on the outer surface of the pull wire, so that when it is necessary to take out the distribution box, the pull wire is pulled to pull the wedge block toward the bottom of the installation groove, thereby making the locking block detach from the wedge block.

[0043] Furthermore, a fixed pulley may be provided, the fixed pulley being fixed on the shelf, and the pull wire passing through the fixed pulley to stabilize the pull wire.

[0044] The above technical solution can facilitate the locking and unlocking between the branch pipe and the assembly pipe.

[0045] Furthermore, the pull wire adopts a hard pull wire to improve its firmness.

[0046] Preferably, a buffer spring is installed between the distribution box and the side plate. One end of the buffer spring is fixed to the side plate, and the other end is in contact with the side wall of the distribution box. The arrangement of this structure can prevent the distribution box from hitting the shelf when it is placed.

[0047] Through the above technical scheme, it can be known that compared with the prior art, the present invention discloses a vegetable cold chain preservation device. Compared with the prior art, the present invention forms a new cold chain distribution mode. The cold chain supplier can store the vegetables supplied by the vegetable supplier in the corresponding distribution box in advance according to the supply order requirements, process and store them, and distribute the goods through the distribution box. When the distribution box is in use, the cold air inlet can be opened by setting the baffle and the push rod, so that when the distribution box is stored, the push rod can be pushed to supply cold air to the inside of the distribution box, thereby preserving and storing the vegetables in the distribution box; during transportation and conveying, the push rod is released, the push rod returns to its original position under the action of the return spring and the baffle closes the cold air inlet for refrigeration; thereby shortening the waiting time of the merchant, improving the overall operating efficiency, and switching the cold air supply to the original cold storage to the cold air supply of a separate box, reducing the use of cold air and greatly saving costs. The present invention also provides a cold chain fresh-keeping warehouse. By placing a distribution box on a shelf and sealingly docking it with a branch pipe, cold air supply can be realized in the distribution box, thereby realizing the preservation of vegetables in the distribution box. This structure can make the storage and picking process of vegetables more flexible and efficient. Suppliers can prepare and store the vegetables required by each merchant in advance according to order requirements. When merchants pick up the goods, they only need to find the corresponding distribution box to achieve rapid delivery, which reduces the picking time and error rate, improves work efficiency, forms an efficient and orderly supply chain form of supply and pickup, and realizes the modular development of the cold chain warehouse; through the setting of the top plate, the branch pipe can automatically push the push rod to move when docking with the assembly pipe, thereby opening the cold air inlet, realizing the preservation and storage of vegetables in the distribution box, and the setting of this structure can realize the precise discharge of cold air to the distribution box when needed, avoiding the existence of a large amount of cold air in the fresh-keeping warehouse, on the one hand, reducing the potential threat to the health of the staff posed by the huge temperature difference between the inside and outside of the fresh-keeping warehouse; on the other hand, it reduces energy consumption and greatly reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0049] Figure 1 This is a schematic diagram of the external structure of the distribution box provided by the present invention from a first perspective.

[0050] Figure 2 A cross-sectional view of the cargo distribution box provided by the present invention.

[0051] Figure 3 This is an enlarged view of the cold air inlet provided by the present invention in a closed state.

[0052] Figure 4 This is an enlarged view of the cold air inlet provided by the present invention in an open state.

[0053] Figure 5 A schematic diagram of the external structure of the cargo distribution box provided by the present invention from a second perspective.

[0054] Figure 6 This is a schematic diagram of the internal structure of a cold chain fresh-keeping warehouse according to Embodiment 2 of the present invention.

[0055] Figure 7 This is a schematic structural diagram of the side panel provided by the present invention.

[0056] Figure 8 A cross-sectional view of the connection between the branch pipeline provided by the present invention and the distribution box.

[0057] Fig. 9 A schematic diagram of the structure of the connection between the shelf and the distribution box provided by the present invention.

[0058] Fig.10 A top view of the connection between the shelf and the distribution box provided by the present invention.

[0059] Fig.11 This is an enlarged view of the automatic locking assembly provided by the present invention.

[0060] Among them, 1 is the distribution box; 1-1 is the box door; 1-2 is the card slot;

[0061] 2 is the assembly pipe; 3 is the assembly plate;

[0062] 4 is the air inlet opening and closing assembly; 4-1 is the cold air inlet; 4-2 is the baffle; 4-3 is the push rod; 4-4 is the return spring; 4-5 is the retaining ring;

[0063] 5 is an air outlet; 6 is a sealing pad; 7 is a reinforcing sealing ring; 8 is a vegetable placement rack;

[0064] 9 is a wind-slowing plate; 9-1 is a wind-slowing hole;

[0065] 10 is a side panel;

[0066] 11 is a cold air duct; 11-1 is a branch duct;

[0067] 12 is a warehouse; 13 is a top plate;

[0068] 14 is an automatic locking assembly; 14-1 is an L-shaped plate; 14-2 is a mounting slot; 14-3 is a telescopic spring; 14-4 is a wedge block; 14-5 is a locking block; 14-6 is a pull wire;

[0069] 15 is a buffer spring; 16 is a shelf. DETAILED DESCRIPTION

[0070] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] Embodiment 1

[0072] See attached Figure 1-5 The embodiment of the present invention discloses a vegetable cold chain preservation device, comprising:

[0073] Distribution box 1;

[0074] An assembly pipe 2 is vertically fixed to the outer wall of the distribution box 1;

[0075] An assembly plate 3, the assembly plate 3 is blocked at one end of the assembly duct 2 away from the distribution box 1, and a cold air inlet 4-1 and an installation hole are provided on the assembly plate 3 and the side wall of the distribution box 1 corresponding to the assembly plate 3;

[0076] The air inlet opening and closing component 4 includes a baffle 4-2, a push rod 4-3, a retaining ring 4-5 and a return spring 4-4. The baffle 4-2 is sealingly covered on the inner wall of the distribution box 1 and its plate surface can block the cold air inlet 4-1 of the distribution box 1; the push rod 4-3 is slidably connected in the mounting holes of the distribution box 1 and the assembly plate 3, and one end of it is fixed to the baffle 4-2, and the other end is located outside the assembly pipe 2; the retaining ring 4-5 is located in the assembly pipe 2 and is fixed to the outside of the push rod 4-3; the return spring 4-4 ​​is sleeved on the outside of the push rod 4-3 and its two ends are tightly pressed between the retaining ring 4-5 and the outer wall of the distribution box 1.

[0077] In this embodiment, a heat-insulating plate is embedded in the box board of the distribution box 1, or the box board is treated with heat-insulating treatment.

[0078] Specifically, on the assembly plate 3, the mounting hole is located at the center of the assembly plate 3, and the cold air inlet 4-1 is multiple and arranged around the mounting hole; the mounting holes and cold air inlet 4-1 on the side wall of the distribution box 1 corresponding to the assembly plate 3 are arranged corresponding to the mounting holes and cold air inlet 4-1 on the assembly plate 3.

[0079] In order to further optimize the above technical solution, a sealing gasket 6 is also included. The sealing gasket 6 is fixed on the plate surface of the baffle 4-2 corresponding to the cold air inlet 4-1, and blocks the cold air inlet 4-1 of the distribution box 1.

[0080] The sealing gasket block 6 is interference fit with the cold air inlet 4 - 1 on the side wall of the distribution box 1 .

[0081] In order to further optimize the above technical solution, a reinforced sealing ring 7 is also included. An annular groove 1-2 is opened on the inner wall of the distribution box 1 corresponding to the baffle 4-2. The reinforced sealing ring 7 is fixed on the baffle 4-2 and can be embedded in the groove 1-2.

[0082] In this embodiment, the baffle 4 - 2 is a straight plate.

[0083] In other specific embodiments, the baffle 4-2 may also be provided as a curved plate with an arc. When the baffle 4-2 is provided as a curved plate, the plate surface of the baffle 4-2 corresponding to the position of the reinforcing sealing ring 7 may be provided to be bent toward the card slot 1-2, so as to coordinate with the sealing gasket and compensate for the insufficient force of the sealing gasket.

[0084] Specifically, the elastic force of the return spring 4 - 4 is greater than the friction force between the reinforcing sealing ring 7 and the slot 1 - 2 .

[0085] In order to further optimize the above technical solution, it also includes a wind slowdown plate 9, which is fixed to the inner wall of the distribution box 1 and has a movable gap between it and the side wall of the distribution box 1 corresponding to the cold air inlet 4-1. The baffle 4-2 moves in the movable gap, and a plurality of wind slowdown holes 9-1 are evenly opened on the wind slowdown plate 9.

[0086] In order to further optimize the above technical solution, the door 1 - 1 of the distribution box 1 is arranged on a side of the distribution box 1 away from the assembly pipe 2 .

[0087] In order to further optimize the above technical solution, it also includes a vegetable placement rack 8. A vegetable placement area is formed between the wind slowing plate 9 and the box door 1-1. The vegetable placement rack 8 is arranged in the vegetable placement area. The vegetable placement rack 8 adopts a conveyor belt structure and is provided in multiple layers.

[0088] Specifically, each vegetable placement rack 8 includes two rotating shafts, a load plate, a conveyor belt and a rocker. The two rotating shafts are spaced apart and are rotatably connected to the inner wall of the vegetable placement area; the load plate is fixed between the upper surfaces of the two rotating shafts corresponding to the inner wall of the vegetable placement area; the conveyor belt is wrapped around the outer surfaces of the two rotating shafts and the load plate and is tensioned; the rocker is located outside the distribution box and one end of the rocker is sealed and passes through the side wall of the distribution box and is fixed to the rotating shaft.

[0089] A certain gap is reserved between the two ends of the conveyor belt corresponding to its conveying direction and the two sides perpendicular to its conveying direction and the side walls of the vegetable placement area. The gap can ensure smooth transmission of the conveyor belt and prevent vegetables on the conveyor belt from falling.

[0090] In order to further optimize the above technical solution, an air outlet 5 is provided on the distribution box 1, and the control logic of the air outlet 5 is configured to open when the cold air inlet 4-1 is opened, and close when the cold air inlet 4-1 is blocked.

[0091] Specifically, the air outlet member 5 can be arranged on a side of the distribution box 1 corresponding to the box door 1-1, and its air outlet volume is adjustable.

[0092] In order to further optimize the above technical solution, a pressure relief valve is provided at the top of the distribution box 1 corresponding to the vegetable placement area.

[0093] Embodiment 2

[0094] See attached Figure 6-11 Embodiment 2 of the present invention discloses a cold chain fresh-keeping warehouse, including the vegetable cold chain fresh-keeping device in embodiment 1, and further comprising:

[0095] Warehouse 12;

[0096] Shelves 16, there are multiple shelves 16 and they are all arranged in the warehouse 12, side panels 10 are vertically fixed to the rear side of the shelves 16, the distribution box 1 is placed on the shelves 16 and the assembly pipeline 2 corresponds to the side panels 10;

[0097] A cold air duct 11, one end of which is connected to the cold air system and is provided with a plurality of branch ducts 11-1, the branch ducts 11-1 are vertically fixed to the side plate 10, and the outlet end thereof can be sealed and sleeved with the assembly duct 2 and communicate with the assembly duct 2;

[0098] The top plate 13 is fixed to the outlet end of the branch pipe 11-1 through a connecting piece and can push the push rod 4-3 to move to open the cold air inlet 4-1 closed by the baffle 4-2.

[0099] Specifically, each branch pipe 11 - 1 is provided with a cold air switch valve.

[0100] Specifically, an assembly hole is opened on the side plate 10, and the outlet end of the branch pipe 11-1 is fixed in the assembly hole. The assembly hole can be sealed and sleeved on the outside of the assembly pipe 2.

[0101] Specifically, rollers may be provided at the bottom of the distribution box 1 , or rollers may be provided on the shelf 16 , so that the distribution box 1 can be moved.

[0102] In order to further optimize the above technical solution, an automatic locking assembly 14 is installed between the cargo box 1 and the side panel 10.

[0103] Specifically, the automatic locking assembly 14 includes an L-shaped plate 14-1, a wedge block 14-4, a telescopic spring 14-3 and a locking block 14-5. The L-shaped plate 14-1 is fixed to the side of the side plate 10 corresponding to the distribution box 1 and an installation groove 14-2 is formed between it and the side plate 10, and the opening of the installation groove 14-2 faces the branch pipe 11-1; the wedge block 14-4 is located in the installation groove 14-2 and is connected to the bottom of the installation groove 14-2 through the telescopic spring 14-3; the locking block 14-5 is fixed on the outer wall of the side plate 10 corresponding to the distribution box 1 and is in an inverted wedge shape on the side facing the installation groove 14-2.

[0104] It also includes a pull wire 14-6. A through hole is opened at the bottom of the installation groove 14-2. One end of the pull wire 14-6 is fixed to the wedge block 14-4, and the other end thereof passes through the through hole and is located on the side of the shelf 16 away from the side panel 10; the telescopic spring 14-3 is sleeved on the outer surface of the pull wire 14-6.

[0105] Specifically, a fixed pulley may be provided, the fixed pulley being fixed on the shelf 16, and the pull wire 14-6 passing through the fixed pulley so as to stabilize the pull wire 14-6.

[0106] Furthermore, the pull wire 14-6 is a hard pull wire.

[0107] In order to further optimize the above technical solution, a buffer spring is installed between the cargo distribution box and the side plate. One end of the buffer spring 15 is fixed to the side plate 10, and the other end is abutted against the side wall of the cargo distribution box 1.

[0108] The vegetable cold chain preservation device designed according to the first embodiment of the present invention forms a new cold chain distribution mode. The cold chain supplier can store the vegetables supplied by the vegetable supplier into the corresponding distribution box in advance according to the supply order requirements, process and store them, and distribute the goods through the distribution box. When the distribution box is in use, the cold air inlet can be opened by setting the baffle and the push rod, so that when the distribution box is stored, the push rod can be pushed to supply cold air to the inside of the distribution box, thereby preserving and storing the vegetables in the distribution box; during transportation and transport, the push rod is released, the push rod returns to its original position under the action of the return spring and the baffle closes the cold air inlet for refrigeration; thereby shortening the waiting time of merchants, improving the overall operational efficiency, and switching the cold air supply to the original cold storage to the cold air supply of a separate box, reducing the use of cold air and greatly saving costs. According to the cold chain fresh-keeping warehouse designed in the second embodiment of the present invention, by placing the distribution box on the shelf and sealing it with the branch pipe, the cold air supply in the distribution box can be realized, thereby realizing the preservation of vegetables in the distribution box. This structure can make the storage and picking process of vegetables more flexible and efficient. Suppliers can prepare and store the vegetables required by each merchant in advance according to the order requirements. When the merchant picks up the goods, they only need to find the corresponding distribution box to realize fast delivery, which reduces the picking time and error rate, improves work efficiency, forms an efficient and orderly supply chain form of supply and pickup, and realizes the modular development of the cold chain warehouse; through the setting of the top plate, the branch pipe can automatically push the push rod to move when it is connected with the assembly pipe, thereby opening the cold air inlet, realizing the preservation and storage of vegetables in the distribution box, and the setting of this structure can realize the precise discharge of cold air to the distribution box when needed, avoiding the existence of a large amount of cold air in the fresh-keeping warehouse, on the one hand, reducing the potential threat to the health of the staff posed by the huge temperature difference between the inside and outside of the fresh-keeping warehouse; on the other hand, it reduces energy consumption and greatly reduces costs.

[0109] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0110] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vegetable cold chain preservation device, characterized in that: include: Distribution box (1); An assembly pipe (2), wherein the assembly pipe (2) is vertically fixed to the outer side wall of the distribution box (1); An assembly plate (3), the assembly plate (3) blocking an end of the assembly pipe (2) away from the distribution box (1), the assembly plate (3) and the side wall of the distribution box (1) corresponding to the assembly plate (3) are both provided with a cold air inlet (4-1) and an installation hole; An air inlet opening and closing assembly (4), the air inlet opening and closing assembly (4) comprising a baffle (4-2), a push rod (4-3), a retaining ring (4-5) and a return spring (4-4), the baffle (4-2) sealingly covering the inner wall of the distribution box (1) and its plate surface can block the cold air inlet (4-1) of the distribution box (1); the push rod (4-3) is slidably connected to the distribution box (1) and the mounting holes of the assembly plate (3), and one end of the push rod (4-3) is fixed to the baffle (4-2) and the other end is located outside the assembly pipe (2); the retaining ring (4-5) is located in the assembly pipe (2) and is fixed to the outside of the push rod (4-3); the return spring (4-4) is sleeved on the outside of the push rod (4-3) and its two ends are pressed tightly between the retaining ring (4-5) and the outer wall of the distribution box (1).

2. A vegetable cold chain preservation device according to claim 1, characterized in that: It also includes a sealing gasket (6), which is fixed on the plate surface of the baffle (4-2) corresponding to the cold air inlet (4-1) and blocks the cold air inlet (4-1) of the distribution box (1).

3. A vegetable cold chain preservation device according to claim 2, characterized in that: It also includes a reinforced sealing ring (7); an annular groove (1-2) is provided on the inner side wall of the distribution box (1) corresponding to the baffle (4-2); the reinforced sealing ring (7) is fixed on the baffle (4-2) and can be embedded in the groove (1-2).

4. A vegetable cold chain preservation device according to claim 1, characterized in that: It also includes a wind slow plate (9), which is fixed to the inner wall of the distribution box (1) and has a movable gap between it and the side wall of the distribution box (1) corresponding to the cold air inlet (4-1), and the baffle (4-2) moves in the movable gap. A plurality of wind slow holes (9-1) are evenly opened on the wind slow plate (9).

5. A vegetable cold chain preservation device according to claim 4, characterized in that: The box door (1-1) of the distribution box (1) is arranged on a side of the distribution box (1) away from the assembly pipe (2).

6. A vegetable cold chain preservation device according to claim 5, characterized in that: It also includes a vegetable placement rack (8), a vegetable placement area is formed between the wind-slowing plate (9) and the box door (1-1), and the vegetable placement rack (8) is arranged in the vegetable placement area. The vegetable placement rack (8) adopts a conveyor belt structure and is provided in plurality and arranged in multiple layers.

7. The vegetable cold chain preservation device according to claim 1, characterized in that: The distribution box (1) is provided with an air outlet piece (5), and the control logic of the air outlet piece (5) is configured to open when the cold air inlet (4-1) is open, and close when the cold air inlet (4-1) is blocked.

8. A cold chain fresh-keeping warehouse, comprising a vegetable cold chain fresh-keeping device as described in any one of claims 1 to 7, characterized in that: Also includes: Warehouse (12); A shelf (16), the shelf (16) being arranged in the warehouse (12), a side panel (10) being vertically fixed to the rear side of the shelf (16), the distribution box (1) being placed on the shelf (16) and the assembly pipe (2) corresponding to the side panel (10); A cold air duct (11), one end of the cold air duct (11) is connected to the cold air system and is provided with a plurality of branch ducts (11-1), the branch ducts (11-1) are vertically fixed to the side plate (10), and the outlet ends of the branch ducts (11-1) can be sealed and sleeved with the assembly duct (2) and communicate with the assembly duct (2); A top plate (13) is fixed to the outlet end of the branch duct (11-1) via a connecting piece and can push the push rod (4-3) to move so as to open the cold air inlet (4-1) closed by the baffle (4-2).

9. A cold chain fresh-keeping warehouse according to claim 8, characterized in that: An automatic locking assembly (14) is installed between the distribution box (1) and the side panel (10).

10. The cold chain fresh-keeping warehouse according to claim 8, characterized in that: A buffer spring (15) is installed between the distribution box (1) and the side plate (10).

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