Heat preservation device for air film air-conditioned cold store
By designing a flap structure and a ratchet and pawl locking system at the door of the air-supported membrane cold storage, the problem of difficult installation of insulation panels at the door of the air-supported membrane cold storage was solved, realizing automatic locking and convenient unlocking, and improving the insulation effect of the cold storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XINBAI TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-05
AI Technical Summary
It is difficult to install insulation panels at the door of an air-supported cold storage unit, which reduces the insulation effect.
Design a thermal insulation device for an air-supported membrane controlled atmosphere storage facility. The device employs a flap structure and a ratchet and pawl locking system. The flap is opened and closed by rotating a screw rod to drive a rope, and automatically locked by the rebound force of a torsion spring.
It enables automatic locking and convenient unlocking of the air-supported membrane cold storage door, ensuring the insulation effect of the cold storage and reducing temperature loss.
Smart Images

Figure CN224200497U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air-supported membrane controlled atmosphere storage technology, and in particular to an air-supported membrane controlled atmosphere storage insulation device. Background Technology
[0002] Air-supported membrane structures are lightweight and flexible, saving nearly half the cost while still meeting warehousing needs. Compared to traditional building forms, air-supported membrane structures use lightweight membrane materials and inflation technology, reducing the amount of materials used and the energy required for construction. Cold storage facilities built with air-supported membrane structures have advantages such as flexible assembly and disassembly.
[0003] To ensure the insulation performance of air-supported membrane cold storage, insulation materials are usually installed on the inner walls of the cold storage built with air-supported membrane. The most common structure is insulation board, which is spliced and installed on the inner wall of the cold storage. However, it is not convenient to install insulation boards at the door of the cold storage, which leads to a gap in the overall insulation device and reduces the insulation effect. Therefore, an air-supported membrane controlled atmosphere storage insulation device was proposed. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an air-supported membrane controlled atmosphere storage insulation device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A controlled atmosphere storage device for air-supported membrane structures includes an air-supported membrane wall, an insulation board fixedly installed on the inner wall of the air-supported membrane wall, a track fixedly connected to the upper part of the outer surface of the insulation board, a support rod movably inserted through the lower surface of the end of the track, a first flap fixedly connected to the outer surface of the support rod, and a second flap hinged to the first flap from the side.
[0007] Preferably, a slide rail is provided through the lower surface of the track, and a slide rod is fixedly connected to the upper surface of the second flip plate, the slide rod sliding inside the slide rail.
[0008] Preferably, a gear is fixedly sleeved on the outer surface of the support rod, and a rack is slidably connected to the inside of the track, with the rack meshing with the gear.
[0009] Preferably, a torsion spring is fitted on the outer surface of the support rod, and the end of the torsion spring away from the support rod is fixedly connected to the inner wall of the track.
[0010] Preferably, a rope is fixedly connected to the end of the rack, a rotating rod is fixedly connected to one end of the rope that passes through the insulation board, a fixed pulley is provided on the outer surface of the insulation board, and the fixed pulley is located at the bend of the rope.
[0011] Preferably, a sleeve is fixedly connected to the outer surface of the insulation board, and the rotating rod is movably inserted through the end of the sleeve.
[0012] Preferably, a ratchet is fixedly connected to one end of the swivel rod that extends into the sleeve, and a pawl is provided on the inner wall of the sleeve, with the ratchet wheel and the pawl engaging.
[0013] This utility model has the following beneficial effects:
[0014] 1. By setting up two sets of flaps, flap one and flap two, two door panels are formed. Rotating the rotating rod can use the rope to pull the rack, thereby driving the support rod to rotate and flip flap one, thus opening the door panel. When items are not needed, flap one and flap two are in a parallel state, closing the door and ensuring the insulation effect of the cold storage.
[0015] 2. By installing a sleeve at the knob, after the door panel is opened by rotating the knob, the ratchet and pawl engage to lock the knob, ensuring the stability of the support rod. Pulling the lever outward causes the ratchet and pawl to disengage, releasing the lock. The rebound force of the torsion spring on the outer surface of the support rod can achieve the reverse rotation of the support rod, thereby closing the flap. This achieves the effect of automatic locking after opening the vault door and convenient unlocking and automatic closing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an air-supported membrane controlled atmosphere storage insulation device proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the insulation board structure of an air-supported membrane controlled atmosphere storage insulation device proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the flap bending structure of an air-supported membrane controlled atmosphere storage insulation device proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the knob installation structure of an air-supported membrane controlled atmosphere storage insulation device proposed in this utility model;
[0020] Figure 5 This is a schematic diagram of the internal structure of the sleeve of the air-film controlled atmosphere storage insulation device proposed in this utility model;
[0021] In the diagram: 1. Air-supported membrane wall; 2. Insulation board; 3. Track; 4. Support rod; 5. Flip-up plate one; 6. Slide rod; 7. Flip-up plate two; 8. Slide rail; 9. Gear; 10. Rack; 11. Torsion spring; 12. Rope; 13. Rotary rod; 14. Sleeve; 15. Ratchet; 16. Pawl; 17. Fixed pulley. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1 to 4 A controlled atmosphere storage insulation device includes an air-supported membrane wall 1. An insulation board 2 is fixedly installed on the inner wall of the air-supported membrane wall 1 to provide insulation. A track 3 is fixedly connected to the upper part of the outer surface of the insulation board 2. A support rod 4 is movably inserted through the lower surface of the end of the track 3. A first flap 5 is fixedly connected to the outer surface of the support rod 4. A second flap 7 is hinged to the side of the first flap 5. A slide rail 8 is formed through the lower surface of the track 3. A sliding rod 6 is fixedly connected to the upper surface of the second flap 7, and the sliding rod 6 slides inside the slide rail 8. The first flap 5 and the second flap 7 form a half-door panel. Two sets of door panels are set to close the doorway of the insulation board 2, thereby improving the overall insulation effect. A gear 9 is fixedly sleeved on the outer surface of the support rod 4. A rack 10 is slidably connected to the inner side of the track 3, and the rack 10 meshes with the gear 9. A rope 12 is fixedly connected to one end of the insulation board 2. A rotating rod 13 is fixedly connected to one end of the rope 12. By rotating the rotating rod 13, the rope 12 can be wound up. During the winding of the rope 12, the rack 10 will be pulled to move, thereby driving the gear 9 to rotate. The gear 9 drives the support rod 4 to rotate, thereby flipping the first flap 5. Since the sliding rod 6 is limited to sliding within the slide rail 8, the flipping of the first flap 5 will drive the second flap 7 to flip and move closer to each other, thereby opening the door panel. The torsion spring 11 on the outer surface of the support rod 4 can be used to achieve the reverse rotation of the support rod 4, thereby closing the flap. When it is not necessary to take out items, the first flap 5 and the second flap 7 are in a parallel state, sealing the door and ensuring the insulation effect of the cold storage. The two door panels can be opened and closed independently. When it is not necessary to open both doors, a single door panel can be opened to reduce heat loss.
[0024] Reference Figure 2 , Figure 4 and Figure 5A torsion spring 11 is fitted onto the outer surface of the support rod 4. The end of the torsion spring 11 away from the support rod 4 is fixedly connected to the inner wall of the track 3. A sleeve 14 is fixedly connected to the outer surface of the insulation plate 2. A rotating rod 13 is movably inserted through the end of the sleeve 14. A ratchet 15 is fixedly connected to the end of the rotating rod 13 that extends into the sleeve 14. A pawl 16 is provided on the inner wall of the sleeve 14. The ratchet 15 and the pawl 16 are engaged. A fixed pulley 17 is provided on the outer surface of the insulation plate 2. The fixed pulley 17 is located at the bend of the rope 12 to guide and limit the rope 12. To ensure that the rope 12 can be pulled smoothly, the rotating rod 13 needs to be rotated when opening the door panel. During the rotation of the rotating rod 13, the ratchet 15 and the pawl 16 slide relative to each other, which will not affect the rotation. However, after the flap 1 5 and flap 2 7 are opened and closed, the rotating rod 13 is stopped, and the ratchet 15 is locked by the pawl 16, ensuring the stability of the support rod 4. When it is necessary to close the door panel, the rotating rod 13 is pulled outward, so that the ratchet 15 and the pawl 16 are misaligned. At this time, the rotating rod 13 is unlocked, and the torsion spring 11 rebounds and closes the door panel.
[0025] The specific working principle of this utility model is as follows: Insulation board 2 is installed on the inner wall of the air-supported membrane wall 1 to achieve insulation. Simultaneously, two sets of flaps 1 (5) and 2 (7) are installed at the door opening of the insulation board 2, forming two door panels. The rope 12 can be wound up by rotating the rotating rod 13. During the rotation of the rotating rod 13, the ratchet 15 and pawl 16 slide relative to each other, without affecting the rotation. During the winding of the rope 12, the rack 10 is pulled to move, thereby driving the gear 9 to rotate. The gear 9 drives the support rod 4 to rotate, thus flipping flap 1 (5). Because the sliding rod 6 is limited and slides within the slide rail 8, the flipping of flap 1 (5) will cause the flipping mechanism to rotate. The second panel 7 flips over and moves closer to each other, opening the door panel. After the first panel 5 and the second panel 7 have finished opening and closing, the rotating rod 13 stops rotating. The ratchet 15 is locked by the pawl 16, ensuring the stability of the support rod 4 and making it easier to retrieve goods. The two door panels can be opened and closed independently. When double opening is not required, a single door panel can be opened to reduce heat dissipation. When it is necessary to close the door panel, the rotating rod 13 is pulled outward, causing the ratchet 15 and pawl 16 to be misaligned. At this time, the rotating rod 13 is unlocked, and the torsion spring 11 on the outer surface of the support rod 4 can be used to achieve the reverse rotation of the support rod 4, thereby closing the flip panel.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A controlled atmosphere storage device for air-supported membrane structures, comprising an air-supported membrane wall (1), characterized in that, The inner wall of the air film wall (1) is fixedly provided with an insulation board (2), and the upper part of the outer surface of the insulation board (2) is fixedly connected with a track (3). The lower surface of the end of the track (3) is movably inserted with a support rod (4). The outer surface of the support rod (4) is fixedly connected with a flap plate one (5), and the flap plate one (5) is hinged to a flap plate two (7) from the side.
2. The air-supported membrane controlled atmosphere storage insulation device according to claim 1, characterized in that, The lower surface of the track (3) is provided with a slide rail (8), and the upper surface of the flip plate (7) is fixedly connected with a slide rod (6), which slides inside the slide rail (8).
3. The air-supported membrane controlled atmosphere storage insulation device according to claim 1, characterized in that, The outer surface of the support rod (4) is fixedly fitted with a gear (9), and the inside of the track (3) is slidably connected with a rack (10), which meshes with the gear (9).
4. The air-supported membrane controlled atmosphere storage insulation device according to claim 3, characterized in that, A torsion spring (11) is fitted on the outer surface of the support rod (4), and the end of the torsion spring (11) away from the support rod (4) is fixedly connected to the inner wall of the track (3).
5. The air-supported membrane controlled atmosphere storage insulation device according to claim 4, characterized in that, The end of the rack (10) is fixedly connected to a rope (12), and one end of the rope (12) that passes through the insulation board (2) is fixedly connected to a swivel rod (13). A fixed pulley (17) is provided on the outer surface of the insulation board (2), and the fixed pulley (17) is located at the bend of the rope (12).
6. The air-supported membrane controlled atmosphere storage insulation device according to claim 5, characterized in that, A sleeve (14) is fixedly connected to the outer surface of the insulation board (2), and the rotating rod (13) is movably inserted through the end of the sleeve (14).
7. The air-supported membrane controlled atmosphere storage insulation device according to claim 6, characterized in that, A ratchet (15) is fixedly connected to one end of the swivel (13) that extends into the sleeve (14). A pawl (16) is provided on the inner wall of the sleeve (14). The ratchet (15) and the pawl (16) are engaged and connected.