Civil engineering steel structure composite heat preservation integrated refrigeration house

Abstract

The utility model belongs to the technical field of refrigeration houses, and particularly relates to a civil engineering steel structure composite heat preservation integrated refrigeration house which comprises a refrigeration house body, a refrigeration house door for entering and exiting is arranged on one side of the refrigeration house body, an air curtain machine is arranged at the top of the refrigeration house door, a plurality of illuminating lamps arranged in a partitioned mode are further arranged in the refrigeration house body, and a plurality of goods shelves are arranged in the refrigeration house body. Each goods shelf is provided with a taking and placing mechanism, workers can take and place goods quickly and conveniently, a plurality of air return openings are formed in the bottom of the refrigeration house body, the air supply openings and the air return openings are connected with a refrigerating unit, cold air circulation is formed in the refrigeration house, and the goods shelves are provided with a plurality of unpowered rollers, so that the goods can be pushed in and moved out smoothly. An adjustable flow guide plate is arranged at the bottom of each layer of the goods shelf, so that cold air is evenly dispersed and circulates among multiple layers of goods, the refrigeration / freezing effect is ensured, and the effects of reducing cold air loss, improving goods taking / placing efficiency and indirectly reducing refrigeration power consumption can be achieved by reasonably controlling all components of the refrigeration house.

Description

Technical Field

[0001] This utility model belongs to the field of cold storage technology, specifically a civil engineering steel structure composite insulation integrated cold storage. Background Technology

[0002] With the rapid development of the cold chain logistics industry, small and medium-sized cold storage facilities are increasingly widely used in fresh food distribution, pharmaceutical warehousing, and other fields. Currently, most conventional small and medium-sized cold storage facilities on the market adopt traditional warehousing models, with their racking systems mostly using fixed steel structures. Goods storage and retrieval primarily rely on manual operation in conjunction with manual hydraulic forklifts or small electric handling equipment. This operating model has significant drawbacks: First, operators need to work in low-temperature environments for extended periods, resulting in high labor intensity and numerous safety hazards; second, each storage and retrieval operation requires opening the storage door for 3-5 minutes, leading to increased heat exchange between the inside and outside of the cold storage, forcing the refrigeration unit to frequently start and stop to maintain temperature stability, resulting in approximately 30% or more of additional energy consumption.

[0003] For large-scale automated cold storage facilities, although the solution of using aisle stacker cranes in combination with automated racking is commonly adopted, the core equipment, the stacker crane, requires a dedicated traveling track and a supporting steel structure system. The equipment height is generally over 8 meters, and the aisle width needs to reserve more than 1.2 meters of operating space. This structural feature leads to three major limitations: (1) the equipment installation requires special foundation treatment, and the reconstruction cost is high; (2) the overall system volume is huge and cannot be adapted to conventional small and medium-sized cold storage buildings with a floor height of 4-6 meters; (3) the equipment maintenance requires professional technicians, and the operating cost remains high.

[0004] Therefore, there is an urgent need to develop a new type of warehousing system that combines spatial adaptability, efficient storage and retrieval, and system reliability, in order to achieve multiple technical goals such as reducing cold loss, increasing storage density, and reducing refrigeration energy consumption. Summary of the Invention

[0005] Based on this, this solution provides a civil engineering steel structure composite insulation integrated cold storage, suitable for small and medium-sized cold storage facilities for rapid retrieval and placement of goods, reducing cold air loss during retrieval and placement, and lowering energy consumption. It solves the problems of low retrieval and placement efficiency, significant cold air loss, and high energy consumption in existing small or medium-sized cold storage facilities.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A composite insulated cold storage unit with a civil engineering steel structure includes: a cold storage main body;

[0008] The main body of the cold storage is provided with an entrance and exit on one side, and a cold storage door is provided at the entrance and exit. An air curtain is provided on the top of the cold storage door.

[0009] The interior of the cold storage unit has multiple air outlets from front to back. Each air outlet is equipped with an independently controlled variable frequency fan to quickly adjust the airflow speed in the corresponding area and achieve energy saving. The cold storage unit is connected to an external refrigeration unit, which includes a dehumidifier.

[0010] The main body of the cold storage is also equipped with multiple zoned lighting lights, which are LED lights to ensure illumination and reduce heat generation. The bottom of the main body of the cold storage is equipped with multiple return air vents. The air supply vents and return air vents are connected to the refrigeration unit to form a cold air circulation in the cold storage.

[0011] The main body of the cold storage is equipped with multiple shelves, each with multiple non-powered rollers to facilitate the smooth pushing and moving of goods. Each shelf has an adjustable guide plate at the bottom to ensure that the cold air is evenly distributed and circulates between multiple layers of goods. Each shelf is equipped with a picking and placing mechanism.

[0012] Optionally, in one embodiment of the present invention, the main body of the cold storage is further provided with a natural cold source ventilation system. The natural cold source ventilation system includes a duct fan and a filter. The duct fan is connected to the air inlet of the filter, the air outlet of the filter is connected to the air inlet of the dehumidifier, and the air outlet of the dehumidifier is connected to the air inlet of the refrigeration unit. By introducing a natural cold source, the energy consumption of the refrigeration unit is reduced.

[0013] Optionally, in one embodiment of the present invention, the main body of the cold storage located on the same side as the inlet and outlet is further provided with a buffer zone, which is equipped with a conveyor belt to transport goods into the cold storage and reduce internal temperature fluctuations.

[0014] Optionally, in one embodiment of the present invention, human body sensors are provided at both the front and rear ends of the bottom layer of the shelf to sense the location of the staff and turn on the corresponding lighting to reduce the generation of heat sources.

[0015] Optionally, in one embodiment of this utility model, an indicator light is provided at one end of the shelf near the outer side to serve as a prompt, making it easier for staff to quickly find and retrieve the goods, thereby reducing the working time in the cold storage.

[0016] Optionally, in one embodiment of the present invention, the return air vent is located directly below the shelf to facilitate the rapid flow of cold air into the return air vent.

[0017] Optionally, in one embodiment of the present invention, the floor of the main body of the cold storage is, from top to bottom, a wear-resistant epoxy flooring layer, a reinforced concrete layer, a waterproof vapor barrier layer, an XPS extruded polystyrene insulation layer, and a moisture-proof layer.

[0018] Optionally, in one embodiment of this utility model, the picking and placing mechanism includes a slide rail, a bracket, and a lifting support assembly. The lifting support assembly is slidably connected to the bracket, the bracket is slidably connected to the slide rail, and the top of the bracket is slidably connected to the shelf. The slide rail is fixedly installed on the bottom plate of the cold storage body. The lifting support assembly is provided with a picking and placing machine, a power roller, a docking mounting frame, and a first transmission rod. The first transmission rod is provided with multiple transmission bevel teeth. The picking and placing machine is drivenly connected to the first transmission rod. The two ends of the power roller are respectively screwed to the two sides of the docking mounting frame. The first transmission rod is screwed into the interior of the docking mounting frame, and the front end of the first transmission rod extends forward to form a connecting structure. One end of the power roller is provided with a driven bevel tooth, and the driven bevel tooth meshes with the transmission bevel tooth.

[0019] Optionally, in one embodiment of the present invention, the shelf is provided with a second transmission rod, the front end of the second transmission rod is provided with a connecting groove for a matching connection structure, and the second transmission rod is connected to the unpowered roller of the shelf via transmission.

[0020] Optionally, in one embodiment of the present invention, the lifting support assembly is connected to a lifting assembly, the lifting assembly including a guide rod, a lifting screw and a lifting motor, the lifting motor being located at the top of the bracket, the guide rod being installed on both sides of the lifting screw and the two ends of the guide rod being fixedly connected to the upper and lower ends of the bracket, the lifting screw being drivenly connected to the output end of the lifting motor and the two ends of the lifting screw being screwed to the bracket.

[0021] Compared with existing technologies, the integrated cold storage unit with composite insulation and civil engineering steel structure provided by this utility model has the following characteristics:

[0022] The walls and floors have a multi-layered structure, which effectively blocks heat exchange between the inside and outside, reduces heat loss, ensures structural stability in long-term low-temperature environments, and reduces maintenance energy consumption.

[0023] The top is equipped with an exhaust fan that can introduce external cold air, which is filtered and dehumidified before assisting the refrigeration unit, reducing the mechanical refrigeration load, and significantly saving energy, especially in the low-temperature season, and improving the utilization efficiency of natural cold sources.

[0024] Independently controlled variable frequency fans adjust the air speed of each area as needed, reducing redundant energy consumption. The air curtain machine above the cold storage door can generate an air curtain to block heat exchange when the cold storage door is opened. The buffer zone at the front of the cold storage can reduce temperature fluctuations and refrigeration recovery energy consumption.

[0025] Each shelf is equipped with rollers, allowing goods to move smoothly. The shelves also feature adjustable deflectors that force cold air to circulate evenly between shelf layers, preventing cold air from escaping, improving the uniformity of refrigeration, and adapting to the cooling needs of different goods. Multiple independent storage compartments support categorized storage.

[0026] It enables automatic docking of rack rollers and pallets without the need for an additional drive source, reducing equipment costs. The control box design simplifies operation, reduces manual training costs, and improves operational efficiency.

[0027] The shelf indicator lights are linked with the inventory system to quickly locate goods, shorten warehouse operation time, reduce cold air loss, and allow bulk goods to be quickly sorted through the buffer zone to avoid frequent entry and exit from the cold storage and maintain stable temperature. The grid-shaped shelf layout and central aisle design balance storage density and operating space to meet the high turnover requirements of cold chain logistics.

[0028] In summary, this solution significantly reduces energy consumption in cold storage and substantially improves operational efficiency, meeting the needs of cold chain logistics for energy conservation, environmental protection, efficient management, and low-cost operation and maintenance. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the front structure of a civil engineering steel structure composite insulation integrated cold storage according to Embodiment 1 of this utility model;

[0031] Figure 2 This is a schematic diagram (B) of the front external structure of Embodiment 1 of this utility model;

[0032] Figure 3 This is a side view of the shelf and the picking and placing mechanism of Embodiment 1 of this utility model;

[0033] Figure 4 This is a schematic diagram of the side structure of the guide plate in Embodiment 1 of this utility model;

[0034] Figure 5 for Figure 4 Enlarged schematic diagram of region A;

[0035] Figure 6 This is a schematic diagram of the connection structure between the second transmission rod and the roller of the shelf in Embodiment 1 of this utility model;

[0036] Figure 7 This is a side view of the lifting support assembly according to Embodiment 1 of this utility model;

[0037] Reference numerals: 1. Cold storage body; 101. Variable frequency fan; 102. Return air vent; 103. Return air fan; 104. Lighting; 2. Refrigeration unit; 3. Drainage fan; 4. Support frame; 401. Lifting motor; 402. Lifting screw; 403. Guide rod; 5. Lifting support assembly; 501. Discharge machine; 502. Power roller; 503. First transmission rod; 504. Transmission bevel gear; 505. Driven bevel gear; 506. Tray; 506. Sliding support frame. 507. Forward / backward motor; 508. Forward / backward lead screw; 509. Connecting structure; 5031. Shelf; 6. Guide plate; 601. Mounting frame; 6011. Linkage rod; 6012. Limit ratchet; 6013. Limit block; 6014. Spring; 6015. Indicator light; 602. Second transmission rod; 603. Connecting groove; 6032. Non-powered roller; 604. Cold storage door; 7. Air curtain machine; 8. Inventory system; 9. Buffer zone; 10. Slide rail; 404. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0039] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. Example 1

[0040] Because existing small / medium-sized cold storage facilities are inconvenient for retrieving and placing goods, and suffer from rapid cold air loss and low energy efficiency, a composite insulated cold storage system with a civil engineering steel structure was designed. The specific solution is as follows:

[0041] like Figure 1-7 As shown, a civil engineering steel structure composite insulation integrated cold storage includes: the cold storage body;

[0042] An entrance and exit are provided on one side of the main body of the cold storage. A cold storage door 7 is provided at the entrance and exit. An air curtain machine 8 is provided on the top of the cold storage door 7.

[0043] The interior of the cold storage unit has multiple air outlets from front to back. Each air outlet is equipped with an independently controlled variable frequency fan 101 to quickly adjust the airflow speed in the corresponding area and achieve energy saving. The cold storage unit is connected to the external refrigeration unit 2, which includes a dehumidifier.

[0044] The main body of the cold storage is also equipped with multiple zoned lighting lamps 104, which are LEDs, etc., to ensure lighting and reduce heat generation. The bottom of the main body of the cold storage is equipped with multiple return air vents 102, which are connected to return air fans 103 to deliver the return cold air to the filter, air supply vent, and return air vent 102 to form an air circulation with the refrigeration unit 2, thus forming a cold air circulation in the cold storage.

[0045] The main body of the cold storage is equipped with multiple shelves 6, each with multiple non-powered rollers 604 to facilitate the smooth pushing and moving of goods. Each shelf 6 has an adjustable guide plate 601 at the bottom to distribute cold air evenly and circulate it between multiple layers of goods. Each shelf 6 is equipped with a pick-and-place mechanism, and staff only need to use the corresponding pick-and-place mechanism on the corresponding shelf 6.

[0046] The main body of the cold storage is roughly rectangular / cubic in shape. The cold storage door 7 is located on the front side of the main body of the cold storage. When the cold storage door 7 is opened, the air curtain machine 8 is activated, forming a rapid air curtain at the position of the cold storage door 7, reducing the exchange of hot and cold air, reducing the loss of cold air, and enabling the refrigeration unit 2 to reduce the energy consumption required to restore the temperature of the cold storage.

[0047] On the wall next to the cold storage door 7, there is also an inventory system 9, which is used by staff to check the storage status inside the cold storage, determine the location of the required goods, and record the storage information of each goods retrieval and placement. The storage information in the inventory system 9 is entered by staff. In terms of hardware, the inventory system 9 adopts a touch screen design, which is convenient for staff to use quickly. In case of anomalies, it is easy to trace and check. There are also surveillance cameras inside the cold storage, which can monitor the status of the cold storage in real time.

[0048] The main body of the cold storage also features a natural cold source ventilation system, which includes an exhaust fan 3 and a filter. The exhaust fan 3 is connected to the air inlet of the filter, the air outlet of the filter is connected to the air inlet of the dehumidifier, and the air outlet of the dehumidifier is connected to the air inlet of the refrigeration unit 2. By introducing a natural cold source, the energy consumption of the refrigeration unit 2 is reduced. Specifically, the exhaust fan 3 is located on the top of the main body of the cold storage, and an external concrete structure is provided to shield the exhaust fan 3 from prolonged exposure to sunlight. The exhaust fan 3's body temperature is too high, so its installation location needs to be far away from other high-heat-generating components. The exhaust direction of the exhaust fan 3 is horizontal. The airflow direction is also kept away from other hot air directions as much as possible. When not in use, dust adhesion is minimized. An openable baffle is installed in front of the air inlet of the exhaust fan 3 to reduce the entry of dust, foreign objects, or small insects. When the exhaust fan 3 is started, the baffle can rotate to expose the air inlet of the exhaust fan 3. A mesh cover is also installed at the air inlet of the exhaust fan 3 to block foreign objects, insects, etc. After the exhaust fan 3 introduces natural cold air from outside, it is first filtered through a filter. After filtration, the cold air is dehumidified by a dehumidifier. Once the cleanliness and humidity required for cold storage are met, it is sent to the refrigeration unit 2 for further refrigeration before being delivered into the cold storage.

[0049] The main body of the cold storage located on the same side as the entrance and exit is also equipped with a buffer zone 10. The buffer zone 10 is equipped with a conveyor belt to transport goods into the cold storage and reduce internal temperature fluctuations. Specifically, the buffer zone 10 is a rectangular channel with small high-speed doors on both sides. When a large number of goods need to be put into or taken out of the cold storage, the staff inside and outside the cold storage can use the buffer zone 10 to transport the goods, avoiding the need to keep the cold storage door 7 open for a long time, which would cause a large loss of cold air and high energy consumption for recooling. When the buffer zone 10 is in use, the high-speed door on the outside of the buffer zone 10 is opened, and after the goods are put in, the conveyor belt transports the goods inward. After the goods enter the buffer zone 10, the outer high-speed door is closed. When the goods move close to the inner high-speed door, the inner high-speed door is opened, and the staff inside the cold storage can take the goods out and put them into the shelf 6 position.

[0050] Human body sensors are installed at both the front and rear ends of the bottom layer of the shelf 6 to detect the location of the staff and turn on the corresponding lights 104 to reduce heat generation. In this embodiment, the shelves 6 are placed on both sides of the cold storage, and the center of the cold storage is a central aisle. When the staff enters the cold storage, the lights 104 in the central aisle are turned on to facilitate the staff to move quickly. When the staff moves to two shelves 6, the human body sensor detects the human body and turns on the lights 104 between the two shelves 6 through the central storage system 9 of the cold storage. Except for the lights 104 in the central aisle, the lights 104 between other shelves 6 remain off.

[0051] A warning light 602 is provided at one end of the shelf 6 near the outer side to serve as a prompt, making it easier for staff to quickly find and retrieve goods, reducing the operation time in the cold storage. In this embodiment, the inventory system 9 mentioned above is associated with the warning light 602. When a certain item needs to be retrieved, the inventory system 9 generates a retrieval / placement instruction, and the inventory system 9 controls the warning light 602 on the shelf 6 where the item is located to light up. When staff enter the cold storage, they can quickly find the location of the item, improving the efficiency of retrieving and placing goods and reducing the loss of cold air.

[0052] The shelving unit 6 has a grid-shaped frame structure and is multi-layered. Each layer has multiple storage compartments for storing goods. Each storage compartment is equipped with independently installed non-powered rollers 604. The bottom of each storage compartment has multiple adjustable guide plates 601. The guide plates 601 at the bottom of the same storage compartment are arranged in parallel, while the guide plates 601 at the bottom of adjacent storage compartments have opposite inclination directions. Each guide plate 601 includes multiple guide plates 601 and a mounting frame 6011. The upper edges of the multiple guide plates 601 are screwed onto the mounting frame 6011, which is fixedly installed at the bottom of the storage compartment. Multiple guide vanes 601 have linkage rods 6012 screwed to both ends of their lower edges. One end of the guide vane 601 located at the foremost side is provided with a limiting ratchet 6013. Correspondingly, a limiting block 6014 is provided inside the mounting frame 6011. A spring 6015 is connected to the rear of the limiting block 6014. The part where the limiting ratchet 6013 and the limiting block 6014 fit together is an inclined surface. When the limiting ratchet 6013 rotates in a certain direction, the limiting block 6014 will not limit the limiting ratchet 6013. When the limiting ratchet 6013 rotates in the opposite direction, the limiting block 6014 will limit the limiting ratchet 6013, so that the guide vane 601 is kept at a certain tilt angle.

[0053] The return air vent 102 is located directly below the shelf 6, which facilitates the rapid flow of cold air into the return air vent 102. The cold air handling process of the return air vent 102 is the same as that of the natural cold source. The difference is that the cold source comes from inside the cold storage. After filtration and dehumidification, it is processed by the refrigeration unit 2 and then transported back into the cold storage, so that the air inside the cold storage keeps circulating. With the setting of the deflector plate 601, the cold air can be kept flowing between the layers of goods, reducing the escape to areas outside the shelf 6 and ensuring the refrigeration / freezing effect of the goods.

[0054] The main floor of the cold storage unit consists of, from top to bottom, a wear-resistant epoxy flooring layer, a reinforced concrete layer, a waterproof vapor barrier layer, an XPS extruded polystyrene insulation layer, and a moisture-proof layer. In this embodiment, the wear-resistant epoxy flooring layer is applied in multiple layers with a thickness greater than 2mm for ground protection against friction from the shelves and goods. The reinforced concrete layer uses C30 or higher grade concrete with a frost resistance rating of F150 to bear the load of the cold storage goods, equipment, and insulation layer. The waterproof vapor barrier layer is 0.2-0.5mm thick. PVC roll insulation prevents indoor air condensation and moisture seepage, blocks the rise of underground moisture, and adapts to the thermal expansion and contraction of the concrete layer to avoid tearing. XPS extruded polystyrene board insulation layer provides efficient heat insulation, pressure resistance, and moisture resistance, with a thickness of 100-200mm. The moisture barrier prevents capillary water from rising from the soil, protects the insulation layer from drying out, and is resistant to acid, alkali, and microbial erosion. The moisture barrier is constructed using 1.5-2mm thick HDPE geomembrane with an overlap width greater than 10cm and an upward fold of more than 50cm at the corners.

[0055] In this embodiment, the walls of the cold storage unit, from the inside out, consist of an inner wall protective layer, an airtight moisture-proof layer, an insulation layer, a structural support layer, and an outer protective layer. The inner wall protective layer is made of food-grade stainless steel or antibacterial color steel plate to prevent condensation corrosion and microbial growth. The airtight moisture-proof layer uses a 0.15-0.3mm thick aluminum foil composite PE film to prevent condensation and moisture from penetrating the insulation layer and to block external moisture intrusion. The insulation layer is constructed using sprayed polyurethane and is tightly bonded to the wall base. The structural support layer uses H-shaped steel columns, which are hot-dip galvanized and filled with an insulation layer. The outer protective layer uses color steel plate coated with PVDF to resist ultraviolet radiation and rainwater corrosion and reduce solar radiation heat.

[0056] The loading and unloading mechanism includes a slide rail, a bracket 4, and a lifting support assembly 5. The two sides of the lifting support assembly 5 are slidably connected to the bracket 4. The bracket 4 is slidably connected to the slide rail, and its top is slidably connected to the shelf 6. The slide rail is fixedly installed on the floor of the cold storage unit. The lifting support assembly 5 is equipped with a loading and unloading motor 501, a power roller 502, a docking mounting bracket, and a first transmission rod 503. The first transmission rod 503 is equipped with multiple transmission bevel gears 504. The loading and unloading motor 501 and the first transmission rod 502... 3. Transmission connection: The two ends of the power roller 502 are respectively screwed to the two sides of the docking mounting frame. The first transmission rod 503 is screwed into the inside of the docking mounting frame, and the front end of the first transmission rod 503 extends forward to form a connecting structure 5031. One end of the power roller 502 is provided with a driven bevel tooth 505, which meshes with the transmission bevel tooth 504. When the first transmission rod 503 rotates forward or backward, it can control the power roller 502 to rotate forward or backward, thereby moving the goods in or out. The docking mounting frame is divided into... The device has two layers: an upper layer is a pallet 506, and a lower layer is a sliding support frame 507. The rear of the sliding support frame 507 is equipped with a forward / backward motor 508, which is connected to a forward / backward lead screw 509. The lead screw 509 is screwed to the rear of the pallet 506. By controlling the forward / backward motor 508 to rotate the lead screw 509 forward or backward, the pallet 506 can be moved towards or away from the shelf 6. The forward / backward distance is 10-15cm, ensuring that the picking and placing mechanism is close to the shelf 6 without occupying too much space. When the pallet 506 moves forward or backward, its two sides can slide on both sides of the frame to maintain stability. A control box is fixedly installed near the outer support 4. The control box has up, down, left, and right directional keys corresponding to the left and right translation of the picking and placing mechanism and the lifting and lowering of the lifting support component 5. The control box also includes pick-up and drop-off buttons to control the picking / dropping actions of the pallet 506. The operation of the picking and placing mechanism is simple and easy to learn, requiring no complex training for staff.

[0057] The shelf 6 is equipped with a second transmission rod 603. The front end of the second transmission rod 603 has a connecting groove 6032 of a matching connecting structure 5031. The second transmission rod 603 is connected to the roller of the shelf 6. The transmission connection also adopts the above-mentioned bevel gear meshing transmission connection method. In this embodiment, the connecting groove 6032 is a spline groove structure, which can be connected to the connecting structure 5031 at the front end of the first transmission rod 503. The unpowered roller 604 on the shelf 6 is controlled to rotate by the electric motor 501 to move the goods into the pallet 506 position, or to move the goods in the pallet 506 position into the shelf 6. When the pallet 506 is close, the first transmission rod 503 is in a stationary state. After the connecting structure 5031 is inserted into the connecting groove 6032, the first transmission rod 503 rotates, driving the unpowered roller 604 of the shelf 6 to rotate, moving the goods in or out. Automatic picking / placing of goods can be achieved without installing an additional drive source on the shelf 6, which is convenient to use and relatively low in cost.

[0058] The lifting support assembly 5 is connected to a lifting assembly, which includes a guide rod 403, a lifting screw 402, and a lifting motor 401. The lifting motor 401 is located at the top of the bracket 4. The guide rod 403 is installed on both sides of the lifting screw 402, and both ends of the guide rod 403 are fixedly connected to the upper and lower ends of the bracket 4. The lifting screw 402 is driven by the output end of the lifting motor 401, and both ends of the lifting screw 402 are screwed to the bracket 4. The lifting screw 402 is also screwed to the docking mounting bracket. The lifting screw is controlled by the lifting motor 401. When lever 402 rotates, lifting screw 402 drives docking mounting frame to rise or fall, so that pallet 506 moves to the corresponding goods position. In other solutions, the lifting assembly can also be a combination of guide rod 403, sprocket, chain and lifting motor 401. The two ends of the chain are fixedly connected to docking mounting frame respectively. The chain is also connected to sprocket. A sprocket is installed on the upper and lower parts of bracket 4 respectively. Lifting motor 401 is connected to a sprocket for transmission. For details, refer to the lifting connection structure 5031 of forklift in the prior art.

[0059] Working principle:

[0060] When staff need to retrieve / place goods, they search for the required items in the inventory system 9 and generate a retrieval / placement instruction. The inventory system 9 control indicator light flashes. After entering the cold storage, staff quickly move to the location of the illuminated indicator light. In the case of retrieval, they directly operate the retrieval / placement mechanism next to the shelf 6. In the case of placement, the goods need to be placed on the pallet 506 first, and then the retrieval / placement mechanism is operated to move to the bottom shelf 6 corresponding to the goods' location. Then, the lifting support assembly 5 is controlled to move to the corresponding storage area, bringing the pallet 506 close to the shelf 6, and aligning the front end of the first transmission rod 503 with the first... After the front ends of the two transmission rods 603 are connected, the pick-and-place mechanism 501 is started. The first transmission rod 503 rotates, driving the second transmission rod 603 to rotate, so that the rollers on the pallet 506 and the shelf 6 are both in a rotating state, so that the goods are moved into / out of the shelf 6. After the goods are completely moved into or completely removed, the pallet 506 returns to its initial position. Then, the pallet 506 is controlled to descend to the lowest position, and the pick-and-place mechanism returns to its initial position. If a picking operation is needed, the staff can simply remove the goods from the pallet 506. The staff does not need to operate forklifts or other tools; they can directly control the pick-and-place mechanism.

[0061] This integrated cold storage solution features a multi-layered structure for the walls and floor, employing an inner protective layer, an airtight moisture-proof layer, a polyurethane insulation layer, an H-beam support layer, and an outer protective layer. Combined with an XPS extruded polystyrene board insulation layer and a moisture-proof membrane, it effectively blocks internal and external heat exchange, reducing cold loss. The frost-resistant concrete layer and epoxy wear-resistant flooring ensure structural stability under long-term low-temperature environments and reduce maintenance energy consumption.

[0062] External cold air is introduced through the top exhaust fan 3, and after filtration and dehumidification, it assists the refrigeration unit 2, reducing the mechanical refrigeration load and significantly saving energy, especially in the low-temperature season. The horizontal exhaust design of the exhaust fan 3, along with the protection of baffles and mesh covers, avoids heat source interference and foreign object blockage, improving the utilization efficiency of natural cold sources.

[0063] The independently controlled variable frequency fan 101 adjusts the zone wind speed as needed, reducing redundant energy consumption. The air curtain machine 8 above the cold storage door 7 and the buffer zone 10 on the front side generate an air curtain to block heat exchange when the cold storage door 7 is opened. The buffer zone 10 operates in stages through a conveyor belt and a high-speed door, shortening the door opening time and reducing temperature fluctuations and refrigeration recovery energy consumption.

[0064] Each shelf 6 is equipped with rollers, allowing goods to move smoothly. Each shelf 6 is also equipped with a deflector plate 601 with staggered inclinations between the upper and lower shelves, forcing cold air to circulate evenly between the shelves 6, preventing cold air from escaping and improving the uniformity of refrigeration. The multi-layer independent storage compartments support classified storage. The deflector plate 601 is linked to the limit ratchet 6013 to adjust the angle, adapting to the cooling needs of different goods.

[0065] The automatic docking of the 6 rollers of the shelf with the pallet 506 is achieved through the slide rail, lifting screw 402 and bevel gear transmission, without the need for an additional drive source, reducing equipment costs. The design of the control box simplifies the picking and placing process, reduces manual training costs, and improves operational efficiency.

[0066] The indicator lights 602 on shelf 6 are linked with the inventory system 9 to quickly locate goods, shorten warehouse operation time, and reduce cold air loss. Batch goods are quickly sorted through buffer zone 10 to avoid frequent entry and exit from the cold storage and maintain stable temperature. The grid-shaped shelf layout and central aisle design of shelf 6 balance storage density and working space to meet the high turnover requirements of cold chain logistics.

[0067] In summary, this solution significantly reduces energy consumption and dramatically improves operational efficiency in cold storage through composite insulation, utilization of natural cold sources, intelligent zoning control, and an automated operating system. Its modular design, durable structure, and user-friendly interface further meet the needs of cold chain logistics for energy conservation, environmental protection, efficient management, and low-cost operation and maintenance. Example 2

[0068] In this embodiment, the cold storage structure is basically the same as that in Embodiment 1. The difference is that, based on Embodiment 1, the bottom of the retrieval mechanism adopts an electric base design and is controlled by an automated program. When a staff member determines that a certain item needs to be retrieved through the inventory system 9 outside the cold storage, the retrieval mechanism of the corresponding shelf 6 can move to the location of the item by the electric base. The automated program can then remove the item from the shelf 6 and lower it to the bottom of the retrieval mechanism. After entering the cold storage, the staff member can directly take the item from the retrieval mechanism. The placement process is similar. After issuing a placement instruction through the inventory system 9, the staff member moves the item into the cold storage and places it in the retrieval mechanism. The retrieval mechanism can automatically place the item into the storage area, further accelerating the efficiency of retrieval / placement.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A composite thermal insulation integrated cold storage of civil steel structure, characterized in that, The utility model provides a cold storage, which comprises a cold storage body, an entrance and an exit provided on one side of the cold storage body, a cold storage door provided at the entrance and the exit, a wind curtain machine provided on the top of the cold storage door, a plurality of air supply ports provided in the cold storage body from front to back, a variable frequency fan provided in each air supply port for independently controlling the air flow rate of the corresponding area, a refrigerating unit connected to the cold storage body, and a dehumidifier included in the refrigerating unit. The cold storage body is further provided with a natural cold source ventilation system, which comprises a flow guide fan and a filter. The filter is connected to the air inlet of the flow guide fan, the air outlet of the filter is connected to the air inlet of the dehumidifier, and the air outlet of the dehumidifier is connected to the air inlet of the refrigerating unit. The natural cold source ventilation system can reduce the energy consumption of the refrigerating unit by introducing a natural cold source. The cold storage body is further provided with a buffer zone on the same side as the entrance and the exit. The buffer zone is provided with a conveyor belt for conveying goods into the cold storage to reduce the internal temperature fluctuation.

2. The composite cold storage house of claim 1, wherein, The front and rear ends of the bottom layer of the shelf are provided with human body sensors to sense the position of the staff and turn on the corresponding lighting lamps to reduce the generation of heat sources.

3. The composite cold storage house of claim 1, wherein, The end of the shelf close to the outside is provided with a prompt lamp to facilitate the staff to quickly find and take out the goods and reduce the operation time in the cold storage.

4. The composite cold storage house of claim 1, wherein, The air return port is located directly below the shelf to facilitate the rapid flow of cold air into the air return port.

5. The composite cold storage house of claim 1, wherein, The floor of the cold storage body comprises, from top to bottom, a wear-resistant epoxy floor, a reinforced concrete layer, a waterproof vapor barrier film layer, an XPS extruded board thermal insulation layer, and a moisture-proof layer.

6. The composite cold storage house of claim 1, wherein, The taking and placing mechanism comprises a slide rail, a support, and a lifting support assembly.

7. The composite cold storage house of claim 1, wherein, The lifting support assembly is slidably connected to the support, the support is slidably connected to the slide rail, and the top of the support is slidably connected to the shelf.

8. The composite cold storage house of claim 1, wherein, The slide rail is fixedly installed on the bottom plate of the cold storage body.

9. The composite cold storage house of claim 1, wherein, The lifting support assembly comprises a taking and placing motor, a power roller, a butt joint mounting bracket, and a first transmission rod. The first transmission rod is provided with a plurality of transmission bevel gears. The taking and placing motor is transmissionally connected to the first transmission rod. The power roller is rotatably connected to the two sides of the butt joint mounting bracket. The first transmission rod is rotatably connected to the inside of the butt joint mounting bracket, and the front end of the first transmission rod extends forward to form a connecting structure. One end of the power roller is provided with a driven bevel gear, and the driven bevel gear is meshed with the transmission bevel gear. The shelf is provided with a second transmission rod. The front end of the second transmission rod is provided with a connecting groove matched with the connecting structure. The second transmission rod is transmissionally connected to the power-free roller of the shelf.

10. The composite cold storage house of claim 8, wherein, The lifting support assembly is connected with a lifting assembly, the lifting assembly comprises a guide rod, a lifting screw rod and a lifting motor, the lifting motor is arranged on the top of the support, the guide rod is installed on both sides of the lifting screw rod and both ends of the guide rod are fixedly connected with the support, the lifting screw rod is in transmission connection with the output end of the lifting motor and both ends of the lifting screw rod are screwed with the support.

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