Platform connecting mobile air curtain door device

Abstract

The utility model provides a kind of platform connection mobile air curtain door device, the fixed structure of wind curtain machine is provided by frame support, and power supply is provided by power supply module, frame support can be rotated by supporting bracket respectively hinged with frame support, external facade, so that frame support can be rotated, realize that wind curtain machine is switched between working position and standby position, an air curtain is formed at loading opening by wind curtain machine, reduce the heat exchange rate of air conditioner in car and external hot air, so as to reduce the temperature fluctuation in car, maintain the low temperature environment required by goods, simple structure, low requirement for site, high flexibility.

Description

Technical Field

[0001] This utility model relates to the field of air curtain doors, and in particular to a platform-connected movable air curtain door device. Background Technology

[0002] In modern logistics systems, cold chain transportation is crucial for preserving and ensuring the quality of perishable goods such as fruits, vegetables, and chilled products. Because these goods are highly susceptible to spoilage at room temperature, cold chain transportation effectively inhibits microbial growth and slows down physiological metabolism, thereby extending shelf life, maintaining freshness and taste, meeting consumer demand for high-quality food, reducing transportation losses, and ensuring that goods retain their original quality to the greatest extent possible during transport, achieving efficient and safe flow from production to consumption.

[0003] However, in practice, there is a significant problem of cold air loss during the transfer of goods from cold storage to refrigerated transport vehicles. When the truck doors are opened, there is usually a platform at room temperature between the cold storage and the truck. At this point, the cold air inside the truck exchanges violently with the warm air on the platform, resulting in a large loss of cold air from the truck. This not only affects the quality of the goods but also increases energy consumption and transportation costs. Existing technologies often reduce cold air loss by quickly loading and unloading goods, or by setting up a buffer zone on the platform between the truck and the cold storage, or by using insulation materials. While setting up a buffer zone between the truck and the cold storage can reduce direct cold air loss, the construction costs are high, including materials for building the independent space, air conditioning systems, and installation and maintenance costs. Furthermore, the buffer zone occupies operating space, complicates the goods transfer process, increases handling time and labor intensity, and reduces loading and unloading efficiency. It also restricts vehicle parking and loading / unloading methods, has strict requirements for site layout, and lacks flexibility. Utility Model Content

[0004] Therefore, it is necessary to provide a platform-connected movable air curtain door device to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides...

[0006] Unlike existing technologies, the above technical solution provides a fixed structure for the air curtain machine through a frame bracket and supplies power through a power supply module. The support bracket is hinged to the frame bracket and the external facade, allowing the frame bracket to rotate and enabling the air curtain machine to switch between the working position and the standby position. The air curtain machine forms an air curtain at the loading port, reducing the heat exchange rate between the cold air inside the car and the hot air outside, thereby reducing temperature fluctuations inside the car and maintaining the low-temperature environment required for the goods. The structure is simple, has low site requirements, and is highly flexible. Attached Figure Description

[0007] Figure 1 This is a left view of the structure of the platform-connected movable air curtain door device described in the specific embodiment;

[0008] Figure 2 This is a top view of the platform-connected movable air curtain door device in its working position, as described in the specific embodiment.

[0009] Figure 3 This is a top view of the platform-connected movable air curtain door device in the standby position according to a specific embodiment;

[0010] Figure 4 for Figure 1 A magnified view of a portion of the image;

[0011] Figure 5 for Figure 1 A magnified view of a portion of the image, B.

[0012] Explanation of reference numerals in the attached figures:

[0013] 10. Frame bracket; 20. Air curtain machine; 30. Power supply module; 40. Support bracket; 401. Swing arm; 402. Pin; 403. Pin seat; 50. Baffle; 51. Paddle; 60. Temperature and humidity monitoring module; 70. Monitoring module; 80. Brake caster. Detailed Implementation

[0014] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0015] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0016] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0017] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0018] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0019] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0020] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0021] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0022] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0023] Please see Figures 1 to 5 This embodiment provides a platform-connected movable air curtain door device, including a frame support 10, an air curtain machine 20, a power supply module 30, and a support bracket 40. The frame support 10 is vertically arranged and has a ventilation opening on one side. The air curtain machine 20 is fixedly installed inside the frame support 10, and its air outlet is located on one side of the ventilation opening. The power supply module 30 is electrically connected to the air curtain machine 20. One end of the support bracket 40 is hinged to the frame support 10, and the other end is hinged to the external facade. The frame support 10 rotates relative to the external facade through the support bracket 40. When the frame support 10 rotates to the working position, the air curtain machine 20 is located at the edge of the platform, and the air outlet direction is located on the parallel plane of the loading port. When the frame support 10 rotates to the standby position, the frame support 10 and the support bracket 40 rest against the external facade.

[0024] The frame support 10 is made of aluminum alloy, which is lightweight, high-strength, and corrosion-resistant, making it suitable for long-term use in cold chain logistics environments and easy to disassemble and move with the vehicle as a whole. Its overall rectangular frame structure consists of four vertical columns and two layers of horizontal connecting beams, ensuring the stability and robustness of the overall structure. A ventilation opening is provided on one side of the frame support 10. The size of this opening is designed to match the air outlet of the air curtain machine 20, ensuring that the airflow generated by the air curtain machine 20 can smoothly pass through the opening to form a uniform air curtain, effectively blocking the exchange of hot air between the platform and the vehicle, thereby reducing the loss of cold air. The air curtain machine 20 can be fixed inside the frame support 10 using four symmetrically distributed mounting seats. Each mounting seat consists of a base plate fixed to the inner wall of the frame support 10 and two side plates, forming a "U"-shaped slot structure. The air curtain machine 20 has mounting protrusions on both sides of its body that match the slots. After the protrusions are inserted into the slots, they are tightened with bolts to ensure that the air curtain machine 20 is firmly installed inside the frame bracket 10, can stably generate an air curtain during operation, and is easy to disassemble and maintain. It should be noted that this embodiment is only for illustrative purposes and does not limit the fixing method; other commonly used fixing methods in the prior art can also be used.

[0025] The power supply module 30 can be powered by either a power adapter directly connected to AC mains or a portable battery. The power adapter's input is connected to AC mains, and its output is connected to the power interface of the air curtain machine 20 via a power cord, providing a stable AC power supply for the air curtain machine 20. This is suitable for fixed loading / unloading platforms with AC mains power. Alternatively, a portable battery can be used for use in scenarios without AC mains power or in mobile operations. The portable battery is quickly charged and stores energy by connecting to AC mains via a quick-connect charging interface. During use, it powers the air curtain machine 20 through its battery output interface, ensuring the device operates normally in different working environments and improving its flexibility and applicability.

[0026] The support bracket 40 can be fixed with metal tubing or a telescopic structure composed of multiple high-strength aluminum alloy sleeves. Adjacent sleeves are quickly extended and locked together via built-in spring clips. Specifically, one end of the support bracket 40 is hinged to the connecting lug at the bottom of the frame bracket 10, and the other end is hinged to a fixed support on the external facade (such as the wall or floor embedded parts of a warehouse platform). When the frame bracket 10 needs to be rotated from the standby position to the working position, the support bracket 40 is first extended to a suitable length, and the telescopic position is locked by the spring clips. Then, using the support bracket 40 as a lever, an external force is applied to rotate the frame bracket 10 around the hinge point between the support bracket 40 and the external facade. As the frame bracket 10 rotates, the air curtain machine 20 gradually moves to the edge of the platform. When the frame bracket 10 rotates to the working position, i.e., the airflow direction of the air outlet is parallel to the loading port, the position of the frame bracket 10 is fixed by a limiting device. At this time, the air curtain machine 20 starts working, forming an air curtain barrier, effectively reducing the temperature loss in the carriage.

[0027] The air curtain machine 20 can be a column-type air curtain machine 20. Its working principle involves a built-in centrifugal fan drawing in air, accelerating it through a deflector, and then blowing it out at high speed in a parallel airflow from the outlet, forming a uniform and powerful air curtain on one side of the loading port. This air curtain acts as a dynamic isolation barrier, separating the hot air on the platform from the cold air inside the carriage, preventing hot air from entering the carriage. When cargo handlers are loading and unloading at the loading port, the high-speed airflow continuously generated by the air curtain machine 20 effectively reduces the loss of cold air, lowers the heat exchange rate between the cold air inside the carriage and the hot air outside, thereby reducing temperature fluctuations inside the carriage, maintaining the required low-temperature environment for the goods, reducing the risk of deterioration in cargo quality due to temperature changes, and achieving the goal of energy conservation and consumption reduction.

[0028] This new type of structure provides a fixed structure for the air curtain machine 20 through the frame bracket 10 and provides power through the power supply module 30. The support bracket 40 is hinged to the frame bracket 10 and the external facade, allowing the frame bracket 10 to rotate and switch the air curtain machine 20 between the working position and the standby position. The air curtain machine 20 forms an air curtain at the loading port, reducing the heat exchange rate between the cold air in the car and the hot air outside, thereby reducing temperature fluctuations in the car and maintaining the low temperature environment required for the goods. The structure is simple, has low site requirements, and is highly flexible.

[0029] In some embodiments, a baffle 50 is also included. The baffle 50 is vertically disposed at the outer edge of the ventilation opening of the frame support 10. When the frame support 10 rotates to the working position, the baffle 50 extends into the loading port. The baffle 50 may be made of high-strength engineering plastic and is vertically installed at the outer edge of the ventilation opening of the frame support 10. When the frame support 10 rotates to the working position, the baffle 50 extends into the loading port with the help of the rotation of the frame support 10, and is parallel or coplanar with the air curtain outlet surface. It can closely and parallelly adhere to the side of the car body, assisting in positioning the frame support 10, ensuring that the air curtain forms an ideal barrier at the loading port, improving the cold air blocking effect, and preventing cold air leakage due to positional displacement.

[0030] In some embodiments, a temperature and humidity monitoring module 60 is also included. This module is located at the outer edge of the baffle 50 and electrically connected to the power supply module 30. The temperature and humidity monitoring module 60 uses a high-precision temperature and humidity sensor, such as Sensirion's SHT3x series, and is installed on the outer edge of the baffle 50 and connected to the power supply module 30. This module monitors the temperature and humidity inside the carriage in real time and transmits the data to the controller. The controller dynamically adjusts the power of the air curtain machine 20 according to a preset temperature and humidity range. When the temperature inside the carriage rises, it automatically increases the power of the air curtain machine 20 to increase the airflow and strengthen the cold air barrier; conversely, it reduces the power to reduce energy consumption. The controller can communicate independently with the air curtain machine 20 or receive signals from a host computer to control the air curtain machine 20, achieving intelligent regulation and ensuring stable temperature and humidity inside the carriage.

[0031] In some embodiments, a lever 51 is also included, which is disposed at the lower end and / or lower end of the baffle 50. The lever 51 may be made of flexible PVC material and consists of multiple narrow strips arranged vertically and fixed to the lower end of the baffle 50. This design can reduce the length of the baffle 50 and avoid the problem that the baffle 50 is too long to fit into loading openings of different heights. When the baffle 50 is inserted into the loading opening, the lever 51 swings with the baffle 50 to adapt to the shape of the loading opening, forming a flexible seal, enhancing the blocking effect of the air curtain, and protecting the baffle 50 from collision damage, thereby improving the applicability and durability of the device.

[0032] In some embodiments, a monitoring module 70 is also included, which is disposed on top of the ventilation opening of the frame support 10. The monitoring module 70 uses a high-definition camera, such as model DS-2CD2023G0-I, and is installed on top of the ventilation opening of the frame support 10. It can monitor the operation of the air curtain machine 20 from all directions, including the formation of the air curtain at the air outlet, the airflow direction, and the air volume. Staff can view the video in real time through a remote monitoring system to promptly detect malfunctions or abnormalities of the air curtain machine 20, such as air outlet blockage or insufficient air volume, facilitating rapid repair and ensuring the stable operation of the air curtain machine 20, thus guaranteeing the normal operation of cold chain logistics.

[0033] In some embodiments, a brake caster 80 is also included, which is disposed at the bottom of the frame support 10. The brake caster 80 is installed at the four corners of the bottom of the frame support 10, and is made of high-strength polyurethane material, featuring quiet operation, wear resistance, and high load-bearing capacity. It has a braking function; when the frame support 10 needs to be moved, the brake is unlocked, and the device can be moved flexibly by pushing it; after reaching the designated position, the brake pedal is depressed, and the caster locks, ensuring the stability of the frame support 10. This facilitates moving the device to different platform locations or storage areas, improving the flexibility and convenience of the device.

[0034] In some embodiments, the support bracket 40 consists of a swing arm 401, a pin 402, and a pin seat 403. The pin seat 403 is fixed to the frame bracket 10 and the outer surface, respectively. Both ends of the pin seat 403 and the swing arm have pin holes. The pin 402 passes through the swing arm and the pin seat 403 in sequence to achieve hinge connection. The swing arm can be supported by a metal material, such as stainless steel or sheet metal. The pin seat 403 is fixed to the frame bracket 10 and the outer surface, and both ends of the pin seat and the swing arm have pin holes. The pin 402 passes through the pin holes of the swing arm and the pin seat 403 to achieve hinge connection, allowing the frame bracket 10 to rotate relative to the outer surface. This structure is simple and reliable, easy to install and disassemble, can bear the weight of the frame bracket 10 and the equipment, ensures stable support in the working position, and allows smooth rotation to meet the adjustment requirements of different loading port heights.

[0035] In some embodiments, both the frame support 10 and the swing arm are made of metal, such as sheet metal or stainless steel. The sheet metal frame support 10 possesses good strength and rigidity, capable of supporting equipment such as the air curtain machine 20 while maintaining its shape; the stainless steel swing arm is corrosion-resistant and wear-resistant, adapting to the humid environment of cold chain logistics. The combination of these two materials makes the device robust and durable, extending its service life and ensuring long-term stable operation.

[0036] In some embodiments, both the baffle 50 and the lever 51 are made of plastic, such as PVC, which is lightweight, has moderate strength, is corrosion-resistant, and is easy to process and mold. The PVC baffle 50 and lever 51 can withstand the moisture and chemical corrosion in cold chain logistics environments, maintaining stable performance. At the same time, PVC is easy to manufacture into complex shapes and structures, precisely matching device design requirements. It also possesses good flexibility, mitigating impact damage, protecting critical components, reducing costs, and facilitating installation and maintenance.

[0037] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A platform-connected movable air curtain door device, characterized in that, The system includes a frame support, an air curtain machine, a power supply module, and a support bracket. The frame support is vertically arranged and has a ventilation opening on one side. The air curtain machine is fixedly installed inside the frame support, with its air outlet located on one side of the ventilation opening. The power supply module is electrically connected to the air curtain machine. One end of the support bracket is hinged to the frame support, and the other end is hinged to the external facade. The frame support rotates relative to the external facade via the support bracket. When the frame support rotates to the working position, the air curtain machine is located at the edge of the platform, and the air outlet direction is on the parallel plane to the loading port. When the frame support rotates to the standby position, the frame support and the support bracket rest against the external facade.

2. The platform-connecting movable air curtain door device according to claim 1, characterized in that: It also includes a baffle, which is vertically disposed at the outer edge of the ventilation opening of the frame support. When the frame support is rotated to the working position, the baffle extends into the loading port.

3. The platform-connecting movable air curtain door device according to claim 2, characterized in that: It also includes a temperature and humidity monitoring module, which is located at the outer edge of the baffle and electrically connected to the power supply module.

4. A platform-connecting movable air curtain door device according to claim 2, characterized in that: It also includes a paddle, which is disposed at the lower end and / or lower end of the baffle.

5. A platform-connecting movable air curtain door device according to claim 1, characterized in that: It also includes a monitoring module, which is located at the top of the ventilation opening of the frame support.

6. A platform-connecting movable air curtain door device according to claim 1, characterized in that: It also includes a brake caster wheel, which is located at the bottom of the frame bracket.

7. A platform-connecting movable air curtain door device according to claim 1, characterized in that: The support bracket consists of a swing arm, a pin, and a pin seat. The pin seat is fixed to the frame bracket and the outer inner surface, respectively. Both ends of the pin seat and the swing arm are provided with pin holes. The pin passes through the swing arm and the pin seat in sequence to complete the hinge connection.

8. A platform-connecting movable air curtain door device according to claim 7, characterized in that: Both the frame support and the swing arm are made of metal.

9. A platform-connecting movable air curtain door device according to claim 4, characterized in that: Both the baffle and the lever are made of plastic.

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