Flame-retardant cover for air freight cargoes
By using a fixing mechanism consisting of a limiting connecting column and a telescopic spring, combined with components such as a flame-retardant cover, zipper, and fastening straps, the problem of the inability to fix existing flame-retardant covers for air cargo has been solved. This enables rapid fixation and all-round protection of cargo, improving stability and safety during transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHENGYUAN AVIATION EQUIP CO LTD
- Filing Date
- 2025-03-14
- Publication Date
- 2026-05-12
AI Technical Summary
Existing flame-retardant covers for air cargo cannot be secured during the flame-retardant process, leading to increased risks of damage and instability, and increasing operational difficulty.
The fixing mechanism uses a combination of limiting connecting posts and limiting balls with telescopic springs to quickly secure goods by pulling the fixing rope and connecting limiting posts. Combined with components such as fireproof covers, zippers, fastening straps, waterproof layers and light-emitting layers, it provides comprehensive protection.
It enables rapid securing of goods during transportation, improves stability, reduces potential risks, enhances safety through multiple protection measures, and facilitates fire identification and handling by operators.
Smart Images

Figure CN224220633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aviation safety engineering technology, and in particular to a flame-retardant cover for air cargo. Background Technology
[0002] In modern air freight, the safe transport of goods is of paramount importance. Air freight flame retardant covers are safety protection devices specifically designed for air transport, mainly used to prevent fires and heat spread during transport.
[0003] Chinese patent CN2880153Y discloses a fire extinguishing and flame-retardant cover for extinguishing or retarding fires involving burning or combustible materials, belonging to the category of fire-fighting equipment. This fire extinguishing and flame-retardant cover is made of flame-retardant, heat-resistant, and airtight materials, and includes components such as a smoke exhaust port, a bottom skirt, and an opening seam. This fire extinguishing and flame-retardant cover offers advantages such as rapid and efficient fire extinguishing and flame retardancy, wide application range, simple operation, ease of manufacture, reusability, no secondary damage to combustible materials, and no environmental pollution. It is suitable for various fire-fighting applications, including vehicle fire extinguishing and fire retardant application for instruments and equipment.
[0004] However, this technical solution can only quickly retard flames, but it cannot be fixed during the flame retardation process, which increases the risk of damage and instability. The inability to fix it quickly increases the difficulty of operation. Therefore, a flame-retardant cover for air cargo is proposed. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a flame-retardant cover for air cargo, in which a limiting connecting column is pressed down and fixed by a limiting ball, thereby achieving rapid fixation of the cargo.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A flame-retardant cover for air cargo includes an anti-slip support plate, with cargo slidably connected to the top of the anti-slip support plate, a fixing mechanism slidably connected to the outside of the cargo, and a flame-retardant mechanism slidably connected to the top of the anti-slip support plate.
[0008] The fixing mechanism includes a fixing rope, the inner side of which is slidably connected to the outside of the goods, and a plurality of fixing support seats are fixedly connected to the top of the anti-slip support plate, with an elastic component slidably connected inside each fixing support seat.
[0009] The elastic component includes multiple telescopic springs, with the exterior of every two telescopic springs slidably connected to the interior of the fixed support base. A connecting cylinder is slidably connected inside the fixed support base, and a limiting ball is fixedly connected to the side of the connecting cylinder away from the telescopic spring. A limiting connecting column is slidably connected to the top of the multiple fixed support bases.
[0010] As a further description of the above technical solution:
[0011] The flame-retardant mechanism includes a flame-retardant cover, the bottom of which is slidably connected to the top of the anti-slip support plate. A waterproof component is fixedly connected to the outside of the flame-retardant cover, and a safety component is fixedly connected to the top of the anti-slip support plate.
[0012] As a further description of the above technical solution:
[0013] The waterproof component includes a light-emitting layer, the bottom of which is fixedly connected to the outside of the fireproof cover, and a waterproof layer is fixedly connected to the outside of the light-emitting layer;
[0014] As a further description of the above technical solution:
[0015] The safety component includes multiple warning lights, the bottom of which is fixedly connected to the top of the anti-slip support plate, and two sensors are fixedly connected to the top of the anti-slip support plate.
[0016] As a further description of the above technical solution:
[0017] Zippers are fixedly connected to the outer perimeter of the fireproof cover, and fastening straps are fixedly connected to the bottom perimeter of the fireproof cover. The bottom of the fastening straps is slidably connected to the top of the anti-slip support plate.
[0018] As a further description of the above technical solution:
[0019] The bottom of the fixed rope is fixedly connected to a connecting limiting post. Multiple limiting anti-slip grooves are provided on the outside of the connecting limiting post. The bottom of the connecting limiting post is fixedly connected to the top of the limiting connecting post. Limiting grooves are provided on both sides of the limiting connecting post. The outside of multiple limiting balls is slidably connected to the inside of two of the limiting grooves.
[0020] As a further description of the above technical solution:
[0021] The right side of one of the telescopic springs is fixedly connected to the left side of the connecting cylinder, and the left side of another one of the telescopic springs is fixedly connected to the right side of the connecting cylinder.
[0022] As a further description of the above technical solution:
[0023] The bottom of the fixing rope is slidably connected to the top of the anti-slip support plate, and shock-absorbing blocks are fixedly connected to the outside of the anti-slip support plate.
[0024] The beneficial effects of this utility model are as follows:
[0025] (1) This utility model achieves this by fixing the goods externally with a fixing rope, then pulling the fixing rope with a connecting limit post, and pressing the bottom limit connecting post downwards with the connecting limit post. The telescopic spring and the limit ball are subjected to external pressure and extend inwards into the limit groove, thereby quickly fixing the limit connecting post. This improves the stability of the goods during transportation and reduces potential risks.
[0026] (2) This utility model provides comprehensive protection by using the fireproof cover, zipper and fastening strap in combination, as well as the waterproof layer and luminous layer, which effectively prevents fires, enhances the safety of air cargo during transportation, and facilitates timely identification and handling by operators.
[0027] In summary, this utility model offers advantages such as rapid securing of air cargo during flame retardancy, improved cargo stability during transportation, and reduced potential risks. Attached Figure Description
[0028] Figure 1 This is a three-dimensional schematic diagram of a flame-retardant cover for air cargo proposed in this utility model;
[0029] Figure 2 This is a schematic diagram of the anti-slip support plate of a flame-retardant cover for air cargo proposed in this utility model;
[0030] Figure 3 This is a schematic diagram of the fixing rope for a flame-retardant cover for air cargo proposed in this utility model;
[0031] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0032] Legend:
[0033] 1. Anti-slip support plate; 2. Goods; 3. Fixing rope; 4. Connecting limit post; 5. Limiting anti-slip groove; 6. Fixing support base; 7. Limiting connecting post; 8. Limiting ball; 9. Connecting cylinder; 10. Telescopic spring; 11. Flameproof cover; 12. Zipper; 13. Fastening strap; 14. Shock absorber; 15. Warning light; 16. Waterproof layer; 17. Sensor; 18. Light-emitting layer; 19. Limiting groove. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0036] Example 1
[0037] like Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a flame-retardant cover for air cargo, including an anti-slip support plate 1. The anti-slip support plate 1 serves as the basic load-bearing component of the entire device. Its bottom is designed with a special anti-slip surface to prevent the cargo 2 from sliding during transportation due to aircraft turbulence, acceleration, and deceleration. It stably supports the cargo 2 and provides an installation base for subsequent functional components such as fixing and flame retardancy, ensuring the stability of the entire cargo 2 protection system. The top of the anti-slip support plate 1 is slidably connected to the cargo 2, and the outside of the cargo 2 is slidably connected to a fixing mechanism. The fixing mechanism includes a fixing rope 3, which is wrapped around the outside of the cargo 2. The rope is made of high-strength, wear-resistant, and flexible material. Its inner side is in contact with the surface of the cargo 2 and can slide relative to it. The inner side of the fixing rope 3 is slidably connected to the outside of the cargo 2. The top of the anti-slip support plate 1 is fixedly connected to multiple fixing support seats 6. Each fixing support seat 6 has an elastic component slidably connected inside. The elastic component includes multiple telescopic springs 10. The outside of every two telescopic springs 10 is slidably connected to the inside of the fixing support seat 6. The inside of the fixing support seat 6 is slidably connected to a connecting cylinder 9.
[0038] A limiting ball 8 is fixedly connected to the side of the connecting cylinder 9 away from the telescopic spring 10. When the limiting connecting column 7 is fixed, the limiting connecting column 7 is pressed to push the connecting cylinder 9, the telescopic spring 10 and the limiting ball 8 to move inward. When it encounters the limiting groove 19, the telescopic spring 10 rebounds to fix the limiting connecting column 7. When disassembling, after the limiting connecting column 7 is lifted, the limiting ball 8 is no longer squeezed by the limiting connecting column 7. The connecting cylinder 9 returns to its initial position under the action of the telescopic spring 10, and the telescopic spring 10 also returns to its natural extended state, ready for the next fixing of the goods 2. At the same time, the limiting connecting column 7 also returns to its initial position on the top of the multiple fixed support seats 6 without the action of external force, waiting for the next fixing operation of the goods 2. The top of the multiple fixed support seats 6 is slidably connected to the limiting connecting column 7, and the top of the anti-slip support plate 1 is slidably connected to a flame-retardant mechanism.
[0039] The bottom of the fixing rope 3 is fixedly connected to the connecting limiting post 4, which increases the friction when the user pulls the connecting limiting post 4, improving the fixing efficiency. By wrapping around the cargo 2, the cargo 2 is tightly constrained to the anti-slip support plate 1, preventing the cargo 2 from shifting or even tipping over due to shaking during transportation, and ensuring the position of the cargo 2 is fixed during flight. The connecting limiting post 4 has multiple limiting anti-slip grooves 5 on its outside. The bottom of the connecting limiting post 4 is fixedly connected to the top of the limiting connecting post 7. Limiting grooves 19 are opened on both sides of the limiting connecting post 7. The cooperation of the limiting grooves 19 and the limiting balls 8 restricts the movement trajectory of the limiting connecting post 7 and fixes its fixing rope 3. The outside of the multiple limiting balls 8 is slidably connected to the inside of the two limiting grooves 19. The right side of multiple telescopic springs 10 is fixedly connected to the left side of the connecting cylinder 9, and the left side of multiple other telescopic springs 10 is fixedly connected to the right side of the connecting cylinder 9.
[0040] Example 2
[0041] like Figures 1 to 3The flame-retardant mechanism includes a flame-retardant cover 11. The bottom of the flame-retardant cover 11 can slide freely on the top of the anti-slip support plate 1, facilitating operation during loading and unloading of cargo 2. The bottom of the flame-retardant cover 11 is slidably connected to the top of the anti-slip support plate 1. A waterproof component is fixedly connected to the outside of the flame-retardant cover 11. The waterproof component includes a luminescent layer 18, the bottom of which is fixedly connected to the outside of the flame-retardant cover 11. In the event of an accidental fire during air transport, the flame-retardant cover 11 can effectively prevent the flames from spreading to cargo 2, protecting cargo 2 from fire damage and reducing the risk of loss to cargo 2 due to fire. A waterproof layer 16 is fixedly connected to the outside of the luminescent layer 18. The luminescent layer 18 uses a luminous function. Made of materials, the bottom is tightly fixed to the outside of the fireproof cover 11. Its function is to emit a faint light in low light environments, such as when loading and unloading cargo 2 at night and when the light inside the aircraft cargo hold is poor, so as to facilitate the staff to identify the location of cargo 2. The waterproof layer 16 is made of a material with excellent waterproof performance and is fixed to the outside of the light-emitting layer 18. It can effectively block external moisture, such as rainwater and condensation in the aircraft cargo hold, to prevent cargo 2 from being damaged by moisture. The top of the anti-slip support plate 1 is fixedly connected to a safety component, which includes multiple warning lights 15. The bottom of the warning lights 15 is fixedly connected to the top of the anti-slip support plate 1. The top of the anti-slip support plate 1 is fixedly connected to two sensors 17.
[0042] Sensor 17 is wirelessly connected to the control circuit of alarm light 15, enabling timely transmission of collected data to the control circuit for analysis and processing. When sensor 17 detects an abnormality, such as excessively high temperature of cargo 2 or significant displacement of cargo 2, alarm light 15 will immediately activate, emitting a strong warning light to alert the crew and ground staff to the status of cargo 2, allowing for timely implementation of appropriate measures to ensure the safe transport of cargo 2. Real-time monitoring of cargo 2's status provides trigger signals to alarm light 15, enabling a safety early warning function during cargo 2 transport. Potential safety risks are promptly reported to staff for proactive response and loss reduction. Zippers 12 are fixedly connected to the outer perimeter of the fireproof cover 11, allowing for... The fireproof cover 11 can be easily opened and closed, facilitating the placement and removal of goods 2. Fastening straps 13 are fixedly connected to the bottom of the fireproof cover 11 around its perimeter. After the fireproof cover 11 covers the goods 2, tightening the fastening straps 13 secures the fireproof cover 11 firmly to the anti-slip support plate 1, preventing displacement of the fireproof cover 11 due to airflow or other factors during transportation. The bottom of the fastening straps 13 is slidably connected to the top of the anti-slip support plate 1, and the bottom of the fixing rope 3 is slidably connected to the top of the anti-slip support plate 1. Shock-absorbing blocks 14 are fixedly connected to the outside of the anti-slip support plate 1. The shock-absorbing blocks 14 effectively absorb and buffer these vibrations and impacts, reducing their transmission to the goods 2, protecting the goods 2 from damage caused by vibration and impact, and improving the safety of the goods 2 during transportation.
[0043] Work steps
[0044] Step 1: Place cargo 2 on the anti-slip support plate 1. The anti-slip surface of the anti-slip support plate 1 ensures that cargo 2 will not slip due to aircraft turbulence, acceleration, and deceleration during transportation. Next, wrap the outside of cargo 2 with the fixing rope 3. The high strength and wear resistance of the fixing rope 3 ensure that cargo 2 remains stable during transportation. The bottom of the fixing rope 3 is connected to the limiting connecting post 7. By pressing the limiting connecting post 7, the connecting cylinder 9 and the telescopic spring 10 are pushed, causing the limiting ball 8 to move inward and enter the limiting groove 19, thereby fixing the limiting connecting post 7. The fixing rope 3 is pulled by the connecting limiting post 4 to ensure that cargo 2 will not shift during transportation.
[0045] Step 2: After securing cargo 2, the fireproof cover 11 slides from the top of the anti-slip support plate 1 to cover cargo 2. The zipper 12 and fastening strap 13 on the outside of the fireproof cover 11 ensure that the fireproof cover 11 is tightly fixed to cargo 2, preventing the fireproof cover 11 from shifting due to airflow or other factors during transportation. The waterproof layer 16 and the luminous layer 18 on the outside of the fireproof cover 11 provide waterproof and nighttime identification functions, respectively, ensuring that cargo 2 is not damaged in a humid environment and making it easy for staff to identify cargo 2 in low-light environments. In addition, the sensor 17 on the top of the anti-slip support plate 1 monitors the status of cargo 2 in real time. When the sensor 17 detects an abnormality, the alarm light 15 will be activated immediately, emitting a strong warning light to remind the crew and ground staff to pay attention to the status of cargo 2 so that appropriate measures can be taken in time to ensure the safe transportation of cargo 2. The shock-absorbing block 14 effectively absorbs and buffers the vibration and impact during transportation, reducing the impact on cargo 2 and further improving the safety of cargo 2 during transportation.
[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A flame-retardant cover for air cargo, comprising an anti-slip support plate (1), characterized in that: The top of the anti-slip support plate (1) is slidably connected to the cargo (2), the outside of the cargo (2) is slidably connected to the fixing mechanism, and the top of the anti-slip support plate (1) is slidably connected to the flame-retardant mechanism. The fixing mechanism includes a fixing rope (3), the inner side of which is slidably connected to the outside of the cargo (2), and a plurality of fixing support seats (6) are fixedly connected to the top of the anti-slip support plate (1), and an elastic component is slidably connected inside each of the fixing support seats (6). The elastic assembly includes multiple telescopic springs (10), with the exterior of every two telescopic springs (10) slidably connected to the interior of the fixed support base (6). The interior of the fixed support base (6) is slidably connected to a connecting cylinder (9), with a limiting ball (8) fixedly connected to the side of the connecting cylinder (9) away from the telescopic springs (10). The top of the multiple fixed support bases (6) is slidably connected to a limiting connecting column (7).
2. The flame-retardant cover for air cargo as described in claim 1, characterized in that: The flame-retardant mechanism includes a flame-retardant cover (11), the bottom of which is slidably connected to the top of the anti-slip support plate (1), a waterproof component is fixedly connected to the outside of the flame-retardant cover (11), and a safety component is fixedly connected to the top of the anti-slip support plate (1).
3. The flame-retardant cover for air cargo according to claim 2, characterized in that: The waterproof component includes a light-emitting layer (18), the bottom of which is fixedly connected to the outside of the fireproof cover (11), and a waterproof layer (16) is fixedly connected to the outside of the light-emitting layer (18).
4. The flame-retardant cover for air cargo according to claim 2, characterized in that: The safety component includes multiple warning lights (15), the bottom of which is fixedly connected to the top of the anti-slip support plate (1), and the top of the anti-slip support plate (1) is fixedly connected to two sensors (17).
5. A flame-retardant cover for air cargo according to claim 3, characterized in that: The fireproof cover (11) is fixedly connected to the outer perimeter of the fireproof cover (11) and the bottom perimeter of the fireproof cover (11) is fixedly connected to the fastening strap (13). The bottom of the fastening strap (13) is slidably connected to the top of the anti-slip support plate (1).
6. The flame-retardant cover for air cargo according to claim 1, characterized in that: The bottom of the fixed rope (3) is fixedly connected to a connecting limiting post (4). Multiple limiting anti-slip grooves (5) are provided on the outside of the connecting limiting post (4). The bottom of the connecting limiting post (4) is fixedly connected to the top of the limiting connecting post (7). Limiting grooves (19) are provided on both sides of the limiting connecting post (7). The outside of multiple limiting balls (8) are slidably connected to the inside of the two limiting grooves (19).
7. A flame-retardant cover for air cargo according to claim 1, characterized in that: The right side of one of the telescopic springs (10) is fixedly connected to the left side of the connecting cylinder (9), and the left side of another one of the telescopic springs (10) is fixedly connected to the right side of the connecting cylinder (9).
8. A flame-retardant cover for air cargo according to claim 1, characterized in that: The bottom of the fixing rope (3) is slidably connected to the top of the anti-slip support plate (1), and the anti-slip support plate (1) is fixedly connected to the outside of the shock-absorbing block (14).