Inflatable membrane structure ambient air circulation system

Abstract

The present invention relates to the technical field of air membrane structures. Disclosed is an inflatable membrane structure ambient air circulation system. The inflatable membrane structure ambient air circulation system comprises an inflatable membrane and an air circulation device. The inflatable membrane is provided with a first opening communicating the inner and outer spaces of the inflatable membrane; the air circulation device is disposed on the inner side of the inflatable membrane and faces the inner space of the inflatable membrane, and is sealedly connected to the inflatable membrane by means of a connecting member; and / or the air circulation device is disposed on the outer side of the inflatable membrane and faces the outside, and is sealedly connected to the inflatable membrane by means of a connecting member; the interior of the air circulation device is communicated with the first opening; the first opening and the air circulation device jointly define an air circulation channel; and the air circulation device is provided with a valve body assembly used for controlling the opening and closing of the air circulation channel. In the inflatable membrane structure ambient air circulation system of the present invention, an air circulation structure is connected to a membrane material by means of a connecting member, thereby effectively improving the airtightness, safety and reliability of the air circulation structure.

Description

Inflatable membrane structure ambient air circulation system Technical Field

[0001] This invention relates to the field of air-supported membrane structure technology, specifically to an air circulation system for an inflatable membrane structure, suitable for air exchange scenarios between the interior and exterior environments of an inflatable membrane. Background Technology

[0002] An inflatable membrane structure typically consists of a base installed on the ground and a membrane material mounted on the base. The membrane material and base together define the working space. By inflating air into the working space, the membrane material expands and bulges under the pressure difference, forming a large-span, beam-free, column-free space structure. Inflatable membrane structures eliminate the need for beams, columns, and other supporting structures, offer a large internal working space, and have wide applicability.

[0003] To ensure the quality of the internal environment of the inflatable membrane (such as temperature, humidity, and air quality), an air circulation system is needed to achieve gas exchange between the inside and outside spaces (e.g., exhausting hot and humid gases, dust, fumes, and toxic and harmful gases, and introducing fresh outside air). Currently, existing air circulation solutions for inflatable membranes mainly suffer from the following drawbacks:

[0004] Membrane material is easily torn, resulting in low safety: In existing technology, the air circulation valve body is directly fixed to the membrane material. When the membrane material is subjected to external forces such as wind or snow load and shakes or shifts, the valve body and the membrane material will shift relative to each other. When the valve body encounters the obstruction of the external cable net of the air membrane, the membrane material is subjected to the tension of the valve body. Due to the low strength at the opening edge of the membrane material, it is easy to cause tearing at the opening edge of the membrane material, which poses a safety hazard.

[0005] To address the aforementioned issues, there is an urgent need for an inflatable membrane structure ambient air circulation system that balances airtightness and structural safety.

[0006] Invention / Invention Content

[0007] This invention addresses the shortcomings of existing technologies by providing an inflatable membrane structure environmental air circulation system. By connecting the air circulation structure to the membrane material through connectors, the air tightness and safety reliability of the air circulation structure are effectively improved.

[0008] An embodiment of the first aspect of the present invention provides an inflatable membrane structure ambient air circulation system, the core technical solution of which is as follows:

[0009] The inflatable membrane structure ambient air circulation system includes an inflatable membrane, at least one connector, and at least one air circulation device:

[0010] Inflatable membrane: It has a first opening that connects its internal and external spaces, serving as the entrance and exit for the air circulation channel.

[0011] Connector: The connector includes a flexible sealing element (airtight membrane material, airtight fabric material, etc.), which surrounds the first opening, with one end sealed to the inflatable membrane and the other end sealed to the air circulation device. The flexible sealing element includes a first connecting part for connecting the air circulation device (to improve sealing), and a detachable second connecting part located between or near the inflatable membrane (for safety protection; the second connecting part will disconnect when the external force applied by the air circulation device to the inflatable membrane is too large). The connector also includes a first connector, a second connector, and a third connector. The first connector is located in the air circulation device, the second connector cooperates with the first connector to clamp the inflatable membrane, the portion of the inflatable membrane located between the first connector and the second connector has several folded layers, and the third connector connects the first connector, the second connector, and the folded layers to fix the three relatively.

[0012] Air circulation device: The air circulation device includes a first mounting member, a second mounting member, and a valve body assembly. The first and second mounting members define a sealing clamping structure for connecting a first connection portion. The air circulation device has a second opening communicating with its interior and the outside. The first opening and the interior of the air circulation device together define an air circulation channel. The valve body assembly is disposed in the air circulation device and is used to control the opening and closing of the air circulation channel. In some embodiments, the air circulation device further includes a third mounting member and a fourth mounting member. The third mounting member is disposed in an inflatable membrane and surrounds the first opening. The fourth mounting member is connected to the third mounting member through a flexible seal. The valve body assembly is disposed in the third mounting member and / or the fourth mounting member.

[0013] Furthermore, the inflatable membrane structure ambient air circulation system also includes the following optimized structures:

[0014] Sealing clamping structure: The sealing clamping structure is defined by a first bent portion on the outer side of the first mounting member and a second bent portion on the inner side of the second mounting member, or by a first arc-shaped portion on the outer side of the first mounting member and a second arc-shaped portion on the inner side of the second mounting member; the first bent portion and the second bent portion cooperate to clamp the first connecting portion, or the first arc-shaped portion and the second arc-shaped portion cooperate to clamp the first connecting portion, which not only saves installation space, but also increases the clamping area of ​​the first connecting portion.

[0015] The limiting installation structure of the flexible seal: The limiting installation member is disposed on the limiting installation part of the first connecting part and located outside the first mounting member and / or the second mounting member, and is used to limit the relative displacement between the first connecting part and the first mounting member and the second mounting member; the limiting installation part can be not only the rolled edge at the end of the first connecting part, with the limiting installation member disposed inside the rolled edge, and the limiting installation part is limited by the limiting installation member; the limiting installation part can also be a thickened layer at the end of the first connecting part, the thickness of which is greater than the distance between the first mounting member and the second mounting member, and the limiting installation part is limited by the thickened layer itself; the fixing installation member is disposed on the fixing installation part of the first connecting part, and the fixing installation part is in close contact with the wall surface of the first mounting member and / or the second mounting member to increase the fixing area of ​​the first connecting part.

[0016] Valve body assembly: The valve body assembly includes an actuator, several valve plates capable of closing the air circulation passage, a main drive component for connecting the actuator, and a secondary drive component for connecting the valve plates and the main drive component. The actuator drives the main drive component, which in turn drives the valve plates via the secondary drive component, thereby opening or closing the air circulation passage. The main drive component includes a drive shaft, and the secondary drive component includes a mounting shaft and a linkage mechanism. The valve plates are rotatably mounted in the air circulation passage via the mounting shaft. Several valve plates are arranged along the exhaust direction perpendicular to the air circulation passage. The drive shaft connects the mounting shaft and the actuator, and the valve plates are connected via the linkage mechanism to achieve synchronous flipping motion of the valve plates. Alternatively, the main drive component includes a transmission... The shaft and the secondary transmission components include a drive gear, a driven gear, and a rack. Valve plates are movably disposed in the air circulation channel via the rack. Several valve plates are arranged circumferentially around the central axis of the air circulation channel. The driven gear is connected to the rack. Several driven gears mesh with the drive gear. The transmission shaft is connected to the drive gear to realize that several valve plates move synchronously toward or away from the central axis. The drive gear includes a first drive gear and a second drive gear. The first drive gear is disposed on the transmission shaft. The second drive gear is a ring gear with teeth located on the inner or outer ring. The first drive gear meshes with the second drive gear. Several driven gears mesh with the second drive gear and are arranged around the inner or outer side of the second drive gear.

[0017] Safety limiting structure: The air circulation device is connected to the cable arranged on the outside of the inflatable membrane through a safety limiting component. The safety limiting component is a rigid component (rod, tube, etc.) or a flexible component (rope, cable, etc.). One end of the safety limiting component is connected to the air circulation device (which can be connected to the first mounting component, the second mounting component, the third mounting component, or the fourth mounting component), and the other end is connected to the cable through a buckle.

[0018] By adopting the above technical solution, the present invention achieves the following beneficial effects:

[0019] 1. Enhanced membrane material safety:

[0020] The air circulation device is installed on the outside or inside of the inflatable membrane via connectors. There are at least three ways in which the connectors and the air circulation device can be coupled:

[0021] The first method involves the air circulation device connecting to the inflatable membrane via a connector (specifically, a flexible seal with deformable characteristics). The second method involves the air circulation device itself having two parts, connected by the connector (again, a flexible seal with deformable characteristics). Both methods utilize the deformable nature of the flexible seal. When the air circulation device shakes, it is hindered by the external cable net of the inflatable membrane, and the applied tension is absorbed by the flexible seal, preventing the inflatable membrane from tearing.

[0022] The third method involves connecting the air circulation device to the inflatable membrane via connectors (the connectors in this method include a first connector, a second connector, and a third connector; the first connector is located on the air circulation device, and the two can be detachably installed or integrated; the second connector works with the first connector to sandwich the inflatable membrane in the middle; the third connector is used to connect the first connector and the second connector) to the inflatable membrane. The inflatable membrane has a larger stress-bearing area, and when the air circulation device shakes, the inflatable membrane is less prone to stress concentration, the inflatable membrane is evenly stressed, and it is not easy to tear. In addition, the inflatable membrane sandwiched by the first connector and the second connector has a folded layer (or a thickened layer), which further improves the strength of the connection of the inflatable membrane.

[0023] 2. High working efficiency and improved device durability: The valve body assembly has various forms (folding opening and closing, rotating opening and closing, etc.), with high opening and closing efficiency; when the valve body assembly is located in the air circulation channel, the shielding cover of the valve body assembly guides the corrosive gas away from the actuator through the guide part, reducing the actuator failure rate by 80% and extending the device maintenance cycle to more than 10 years. Attached Figure Description

[0024] Figure 1 is an exploded schematic diagram of the inflatable membrane structure ambient air circulation system (external type) according to the first embodiment of the present invention;

[0025] Figure 2 is a partial enlarged view of A shown in Figure 1;

[0026] Figure 3 is a schematic cross-sectional view of the assembled ambient air circulation system of the inflatable membrane structure shown in Figure 1;

[0027] Figure 4 is a top view of the valve body assembly shown in Figure 1;

[0028] Figure 5 is a cross-sectional view of the valve body assembly shown in Figure 4;

[0029] Figure 6 is a cross-sectional view of the inflatable membrane structure ambient air circulation system (internal type) according to the second embodiment of the present invention;

[0030] Figure 7 is a schematic diagram of the air circulation system of the inflatable membrane structure according to the third embodiment of the present invention.

[0031] Figure 8 is an exploded view from the first perspective of the ambient air circulation system of the inflatable membrane structure shown in Figure 7;

[0032] Figure 9 is an exploded view from a second perspective of the ambient air circulation system of the inflatable membrane structure shown in Figure 8;

[0033] Figure 10 is a partial enlarged view of A shown in Figure 9;

[0034] Figure 11 is a schematic diagram of the air circulation system of the inflatable membrane structure according to the fourth embodiment of the present invention.

[0035] Figure 12 is an exploded view of the ambient air circulation system of the inflatable membrane structure shown in Figure 11;

[0036] Figure 13 is a partial enlarged view of B shown in Figure 12;

[0037] Figure 14 is a partially enlarged schematic diagram of another installation method for the ambient air circulation system driver of the inflatable membrane structure shown in Figure 11.

[0038] Reference numerals: 1. Inflatable membrane; 11. First opening; 12. Reinforcing diaphragm; 13. Cable; 14. Guide rail; 2. Connector; 210. Flexible seal; 211. First connecting part; 212. Second connecting part; 213. Limiting mounting part; 214. Limiting mounting component; 215. Fixed mounting part; 216. Fixed mounting component; 220. First connecting component; 221. Second connecting component; 222. Third connecting component; 223. Folded layer; 224. Embedded part; 3. Air circulation device; 31. First mounting component; 311. First bending part; 32. Second mounting component; 321. Second bending part; 33. Third mounting component; 34. Fourth mounting component; 35. Second opening; 4. Valve body assembly; 41. Frame; 42. Actuator; 43. Covering component; 431. Guide part; 44. Valve plate; 45. Main transmission component; 451. Drive shaft; 46. Secondary drive component; 461. Mounting shaft; 462. Linkage mechanism; 4621. Connecting rod; 4622. First rotating block; 4623. Second rotating block; 463. Drive gear; 4631. First drive gear; 4632. Second drive gear; 464. Driven gear; 465. Rack; 5. Safety limit component; 51. First fixing component; 52. Second fixing component; 53. Limit component; 54. Safety rope; 6. Air circulation channel. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] Figures 1 to 4 illustrate an externally mounted inflatable membrane structure ambient air circulation system.

[0042] 1. Inflatable membrane 1

[0043] Referring to Figures 1 to 4, the inflatable membrane 1 has at least one first opening 11. The first opening 11 is used for the air inside the inflatable membrane 1 to be discharged or for the air outside the inflatable membrane 1 to be introduced. The air generally includes humid and hot gases, dust, flue gas, and toxic and harmful gases (such as carbon monoxide, methane, sulfur dioxide, nitrogen oxides, etc.). A net composed of cables 13 is arranged on the outside of the inflatable membrane 1 to stabilize the structure of the inflatable membrane 1 after it is inflated. When the inflatable membrane 1 is subjected to pressure from factors such as wind, it is not easy to produce large-scale shaking.

[0044] It is understandable that multiple first openings 11 can be made on the inflatable membrane 1, and each first opening 11 is equipped with a device for air exchange (such as an air circulation device 3).

[0045] 2. Connector 2

[0046] Referring to Figures 1 to 4, the air circulation device 3 is disposed on the outside of the inflatable membrane 1 and faces outward, and the connecting member 2 is a flexible sealing member 210. The flexible sealing member 210 is arranged around the first opening 11. In this embodiment, the flexible sealing member 210 is configured as a foldable and deformable diaphragm. The diaphragm is cylindrical, conical, olive-shaped, etc., and one end of the flexible sealing member 210 is welded to the surface of the inflatable membrane 1 by welding.

[0047] The other end of the flexible seal 210 includes a first connecting portion 211 that can be bent. The first connecting portion 211 is used to connect the air circulation device 3 (to improve the sealing effect between the flexible seal 210 and the air circulation device 3). The middle part of the flexible seal 210 includes a second connecting portion 212 that can be separated from itself. The second connecting portion 212 is used for its own protective structure (for example, when the relative displacement between the air membrane 1 and the air circulation device 3 is too large, in order to avoid the flexible seal 210 pulling the air membrane 1 and causing tearing, the flexible seal 210 can be separated from the second connecting portion 212 under the action of tension to protect the air membrane 1).

[0048] It should be noted that in some embodiments, the flexible seal 210 can be a deformable diaphragm, or it can be deformable rubber, airtight cloth, etc. The connection between the flexible seal 210 and the inflatable membrane 1 can be welding, or it can be secured by clamping with clips or by Velcro fastening.

[0049] It is understood that in this embodiment, the flexible seal 210 is subsequently installed on the inflatable membrane 1. For example, after the inflatable membrane 1 is processed and formed, an opening (first opening 11) is made in the inflatable membrane 1, and then the flexible seal 210 is welded to the inflatable membrane 1 and surrounds the opening (first opening 11), then reinforced with clips, and finally connected to the air circulation device 3 with the flexible seal 210; in some embodiments, the flexible seal 210 is pre-installed on the inflatable membrane 1. For example, the flexible seal 210 is designed directly into the inflatable membrane 1 during production, that is, the flexible seal 210 is integrally formed with the inflatable membrane 1 (or the flexible seal 210 is pre-fixed to the surface of the inflatable membrane 1 through other connection methods), and after the inflatable membrane 1 is processed and formed, the air circulation device 3 is directly connected to the flexible seal 210.

[0050] It should be noted that in some embodiments, the second connecting part 212 may also be located at the connection between the inflatable membrane 1 and the flexible seal 210. The location of the second connecting part 212 is not limited and can be designed according to the actual situation.

[0051] 3. Air circulation device 3

[0052] Referring to Figures 1 to 4, the air circulation device 3 includes a second opening 35 and a valve body assembly 4 for opening or closing the second opening 35. The air circulation device 3 is sealed to the other end of the flexible seal 210. The inflatable membrane 1, the first opening 11, the flexible seal 210, and the second opening 35 together define an air circulation channel 6. The valve body assembly 4 is located within the air circulation channel 6 and is capable of opening or closing the air circulation channel 6.

[0053] Understandably, when the valve body assembly 4 opens the second opening 35 of the air circulation device 3, the air inside the inflatable membrane 1 can flow out along a predetermined path, that is, from the first opening 11 to the second opening 35. This results in less air turbulence, faster airflow, and higher air circulation efficiency. Secondly, the flexible seal 210 has high tensile strength. In environments with strong winds, heavy rain, or heavy snow, the air circulation device 3 will experience relative displacement with the inflatable membrane 1 under external force, thus pulling on the flexible seal 210. Due to the characteristics of the flexible seal 210, the connection between the inflatable membrane 1 and the flexible seal 210 is less prone to tearing, thereby improving service life and safety reliability.

[0054] Referring to Figure 2, the arrow indicates the direction in which the air inside the inflatable membrane 1 flows to the outside.

[0055] 4. Sealing clamping structure for flexible seal 210

[0056] Referring to Figures 1 to 4, the air circulation device 3 further includes a first mounting member 31 and a second mounting member 32. The first mounting member 31 and the second mounting member 32 cooperate to clamp the first connecting portion 211. The valve body assembly 4 is connected to the second mounting member 32, so that there are no gaps at the connection between the flexible sealing member 210 and the first mounting member 31 and the second mounting member 32, thus improving airtightness. After the first mounting member 31 and the second mounting member 32 clamp the first connecting portion 211, the first connecting portion 211 has few or no wrinkles, and the contact points are smooth and tightly fitted.

[0057] Understandably, since both sides of the first connecting part 211 are sealed, the air in the air circulation channel 6 cannot flow out from the edge gaps of the first connecting part 211, resulting in good sealing and thus ensuring a constant and stable airflow direction, further improving the air circulation efficiency of the space. The second connecting part 212 adopts a structure similar to Velcro, which can be automatically opened under external force.

[0058] The first mounting member 31 and the second mounting member 32 cooperate to form a sealing clamping structure. The outer side of the first mounting member 31 includes a first bend 311, and the inner side of the second mounting member 32 includes a second bend 321. The first bend 311 and the second bend 321 cooperate to clamp the first connecting part 211. Specifically, the first connecting part 211 is a block-shaped diaphragm extending from the end of a cylindrical diaphragm, the first mounting member 31 is a straight square tube, and the second mounting member 32 is a right-angle connecting block. The first bend 311 is a right-angle bend structure on the outer side of the square tube, and the second bend 321 is a right-angle bend structure on the inner side of the right-angle connecting block. This design can effectively increase the area where the first mounting member 31 and the second mounting member 32 clamp the first connecting part 211, thereby improving the sealing performance.

[0059] It is understandable that the design of the first mounting component 31, the second mounting component 32 and the first connecting part 211 can take into account both the effect of saving installation space and the effect of increasing the contact area of ​​the three components, so that the three components are installed more stably in a limited space.

[0060] It should be noted that the shape of the first connecting part 211 can also be a triangle, a polygon, or an irregular shape. Similarly, the first mounting part 31 can be an arc-shaped tube, etc., and the corresponding first bending part 311 is an outer arc-shaped bending structure (i.e., the first arc-shaped part); the second mounting part 32 can also be an arc-shaped connecting aluminum block, and the corresponding second bending part 321 is an inner arc-shaped bending structure (i.e., the second arc-shaped part). There is no unique limitation here, and any structure that can equally increase the contact area of ​​the first mounting part 31, the second mounting part 32, and the first connecting part 211 is acceptable. The positions of the first bending part 311 and the second bending part 321 (e.g., inner and outer sides) can also be designed according to the actual situation.

[0061] 5. Limiting structure of flexible seal 210

[0062] Referring to Figures 1 to 4, the first mounting member 31, the second mounting member 32, and the first connecting portion 211 are generally fixed by screws or bolts. To further limit the relative sliding of the three components and prevent tearing of the first connecting portion 211, the first connecting portion 211 in this embodiment includes a limiting mounting portion 213. The limiting mounting portion 213 is provided with a limiting mounting member 214 for limiting the relative displacement between the first connecting portion 211 and the first mounting member 31 and the second mounting member 32. Specifically, the limiting mounting portion 213 is a rolled edge located at the end of the first connecting portion 211, outside the interlayer between the first mounting member 31 and the second mounting member 32; the limiting mounting member 214 is a flexible rope, located inside the rolled edge.

[0063] Understandably, when the first connecting part 211 is pulled by an external force, there is a tendency for relative displacement between the first connecting part 211 and the first mounting part 31 and the second mounting part 32. The limiting mounting part 214 abuts against the first mounting part 31 and the second mounting part 32, distributing the force on the first connecting part 211. The force on the first connecting part 211 is more even, effectively reducing the probability of relative displacement between the first connecting part 211 and the first mounting part 31 and the second mounting part 32, and reducing the risk of tearing of the first connecting part 211.

[0064] It should be noted that in some embodiments, the limiting mounting part 213 may be located in the interlayer between the first mounting part 31 and the second mounting part 32, and the interlayer is provided with a groove to accommodate the limiting mounting part 214. This design can also achieve the above-mentioned effect, that is, the limiting mounting part 214 shares the external force received by the first connecting part 211.

[0065] It should be noted that, in some embodiments, the limiting mounting portion 213 may be a thickened layer located at the end of the first connecting portion 211. For example, a thickened layer may be formed by welding the layers together from multiple rolls of membrane material; or it may be a thick membrane layer directly processed from the membrane material.

[0066] Referring to Figures 1 to 4, to further improve the fixing effect between the first connecting part 211, the first mounting member 31, and the second mounting member 32, the first connecting part 211 in this embodiment also includes a fixing mounting part 215. The fixing mounting part 215 is in close contact with the outer wall of the first mounting member 31 and is fixed by a fixing mounting member 216. Specifically, the fixing mounting member 216 has a block-shaped or plate-shaped structure, and the fixing mounting member 216 is pressed onto the fixing mounting part 215 and then fixed by screws or bolts.

[0067] Understandably, the installation of the fixing component 216 further increases the force-bearing area between the first connecting part 211 and the first mounting component 31, thereby improving the tensile strength of the first connecting part 211.

[0068] It should be noted that in some embodiments, the first connecting portion 211 may be multiple pieces. The fixing mounting portion 215 on the first connecting portion 211 may also be in close contact with the wall surface of the second mounting member 32, or in close contact with the wall surfaces of the first mounting member 31 and the second mounting member 32 respectively.

[0069] 6. Valve body assembly 4: Durable protective structure

[0070] Referring to Figures 1 to 4, this embodiment provides a specific structure of a valve body assembly 4, which features high air circulation efficiency, high durability, and long service life.

[0071] The valve body assembly 4 includes a frame 41, an actuator 42, and a valve plate 44 and a shielding cover 43 disposed inside the frame 41. The actuator 42 is mounted on the frame 41 and is kinetically connected to the valve plate 44. The shielding cover 43 is located on the side of the actuator 42 near the first opening 11, and is used to prevent corrosive substances discharged from the inflation membrane 1 from contacting the actuator 42. Specifically, the frame 41 is a square hollow structure, which is lightweight. The actuator 42 is a small servo motor, which is connected to an external power supply and control system via an electrical control cable. The shielding cover 43 is a block-shaped or plate-shaped structure.

[0072] Understandably, after the actuator 42 controls the valve plate 44 to rotate and open, the opening of the frame 41 becomes the second opening 35. The shielding cover 43 effectively prevents corrosive substances from damaging the actuator 42, thereby effectively reducing the risk of damage to the air circulation device 3.

[0073] It should be noted that in this embodiment, the frame 41 and the second mounting member 32 are detachable. In some embodiments, the frame 41 and the second mounting member 32 may be an integral design.

[0074] It should be noted that the shape of the frame 41 can also be circular or polygonal, as long as it matches the structure of the second mounting part 32. The driver 42 can also be other types of driving devices, such as cylinders. The shielding cover 43 can also be made of other materials, and its shape is not limited to any one of them, as long as the structure achieves the same effect.

[0075] Alternatively, the driver 42 can be located outside the frame 41. When the driver 42 is located outside the frame 41, the shielding cover 43 is not required.

[0076] Referring to Figures 1 to 5, in order to improve the blocking effect of the shielding cover 43, the shielding cover 43 of this embodiment is provided with a guide portion 431 extending toward the second opening 35. The guide portion 431 is used to guide the airflow direction. Specifically, the guide portion 431 is a protrusion extending upward from the edge of the shielding cover 43, and the guide portion 431 is arranged around the shielding cover 43.

[0077] Understandably, the air inside the inflatable membrane 1 flows out from the first opening 11, passes through the flexible seal 210, and reaches the shielding cover 43. After the air comes into contact with the shielding cover 43, it will diffuse laterally along its surface. The guide part 431 can guide the air to continue flowing in the direction of the second opening 35, reducing the amount of air diffused to the driver 42, thereby reducing the probability of the driver 42 being corroded.

[0078] It should be noted that the guide part 431 can also be designed to extend toward the first opening 11. Compared with the design of the guide part 431 extending toward the second opening 35, this design will affect the air circulation efficiency to a certain extent, but it can also achieve the effect of guiding corrosive substances away from the driver 42.

[0079] 7. Air circulation device 3 safety protection structure

[0080] Referring to Figure 3, the air circulation system of the inflatable membrane structure also includes a cable 13, which is arranged on the outside of the inflatable membrane 1. The air circulation device 3 also includes a guide rail 14. The valve body assembly 4 is connected to the cable 13 through a safety limiting member 5. The first mounting member 31 is disposed on the guide rail 14. Specifically, in this embodiment, there are two first mounting members 31 and two guide rails 14. The first mounting members 31 are perpendicular to the guide rails 14 and are slidably positioned on the guide rails 14, and then fixed by angle brackets and bolts. The flexible sealing member 210 connects the first mounting members 31 and the guide rails 14 simultaneously (it can be understood that the two sides of the flexible sealing member 210 are connected to the first mounting members 31, and the other two sides are connected to the guide rails 14). The safety limiting member 5 is a flexible safety rope 54, or a rigid rod, etc.

[0081] Understandably, the air circulation device 3 is positioned and installed via the guide rail 14, facilitating alignment of the air circulation device 3 with the first opening 11. The frame 41 is fixed to the cable 13 by the safety limiter 5, making the air circulation device 3 more stable after installation. If the air circulation device 3 detaches from the guide rail 14 due to physical or other factors, or if the entire system detaches from the main body of the inflatable membrane 1, the air circulation device 3 can be restrained on the cable 13, preventing the air circulation device 3 from slipping off the inflatable membrane 1 and damaging the membrane surface or personnel and equipment around the membrane.

[0082] The guide rail 14 and the cable 13 are connected by a locking structure, which includes two clamps with grooves for mounting the cable 13. The cable 13 passes through the grooves, and the two clamps are connected by bolts and then fixed to the guide rail 14 or a fixing plate on the guide rail 14 by bolts. When the cable 13 is installed in the groove, the bolts are tightened to bring the two clamps closer together, thereby locking the cable 13.

[0083] It should be noted that in some embodiments, the guide rail 14 can be replaced with a rigid or flexible rope. The safety limiting member 5 can also be connected to the first mounting member 31, the second mounting member 32, or the guide rail 14.

[0084] Referring to FIG1, in order to improve the overall strength of the inflatable membrane 1 after the first opening 11 is made and to prevent the inflatable membrane 1 from tearing, the inflatable membrane structure ambient air circulation system of this embodiment also includes a reinforcing diaphragm 12, which is arranged around the first opening 11 and connected to the inflatable membrane 1 by welding.

[0085] It is understandable that after the inflatable membrane 1 has the first opening 11, stress concentration is likely to form at the first opening 11. After the reinforcing membrane 12 is welded to the inflatable membrane 1, the tensile strength of the membrane material can be improved and the probability of the membrane material tearing after being subjected to external force can be reduced.

[0086] It should be noted that in some embodiments, the reinforcing diaphragm 12 can be replaced with a rubber sheet or the like. Besides being welded to the inflatable membrane 1, the reinforcing diaphragm 12 can also be connected to the inflatable membrane 1 by clamping and fixing it with clips.

[0087] Example 2

[0088] Figure 6 illustrates an internally mounted inflatable membrane structure ambient air circulation system, wherein the inflatable membrane 1, air circulation device 3, and valve assembly 4 are the same as those in the embodiment, and will not be described again here. The following details the internal mounting scheme of the air circulation device 3:

[0089] 1. Connector 2

[0090] Referring to Figure 6, the connector 2 connects the inflatable membrane 1 to the air circulation device 3, allowing the air circulation device 3 to be detachably mounted on the inflatable membrane 1, facilitating the disassembly and installation of the air circulation device 3.

[0091] The connector 2 includes a first connector 220, a second connector 221, and a third connector 222. The first connector 220 is disposed on the air circulation device 3, the second connector 221 is disposed above the inflatable membrane 1, and the third connector 222 is disposed between the first connector 220 and the second connector 221, and connects the first connector 220 and the second connector 221.

[0092] Optionally, the first connector 220 is an inwardly flanged workpiece of any material (e.g., a metal inwardly flanged flange workpiece or a plastic inwardly flanged flange workpiece), which is detachably fixed to the air circulation device 3 or integrally formed. The second connector 221 is a flange-shaped workpiece or a clamping plate with a diameter larger than the air exchange hole (i.e., the first opening 11); the third connector 222 is a bolted part, and a corresponding flange hole is provided on the inflatable membrane 1, so as to facilitate the installation of the first connector 220 and the second connector 221 onto the inflatable membrane 1 using the third connector 222.

[0093] To prevent the inflatable membrane 1 from being torn by the air circulation device 3, several folded layers 223 (or thickened layers) are provided at the connection between the inflatable membrane 1 and the connector 2. The third connector 222 connects the first connector 220, the second connector 221, and the folded layers 223 (or thickened layers). An embedded part 224 is also provided on the inflatable membrane 1 to limit the position of the membrane material.

[0094] Example 3

[0095] Figures 7 to 10 illustrate an externally mounted inflatable membrane structure ambient air circulation system, as detailed below:

[0096] 1. Air circulation device 3

[0097] Referring to Figure 7, the air circulation device 3 is connected to the inflatable membrane 1 and is connected to the cable 13 via the safety limit member 5.

[0098] Referring to Figures 8 and 9, the air circulation device 3 includes a third mounting member 33, a fourth mounting member 34, a flexible seal 210, and a valve body assembly 4. The third mounting member 33 is a cylindrical structure with a plate extending inward or outward at its bottom. The third mounting member 33 is positioned at the opening of the inflatable membrane 1 and surrounds the first opening 11. The first opening 11 communicates with the inner channel of the third mounting member 33, allowing air inside the inflatable membrane 1 to flow into the channel of the third mounting member 33 through the first opening 11. The plate at the bottom of the third mounting member 33 presses against the outside of the membrane material, and then the plate at the bottom of the third mounting member 33 and the membrane material are clamped by a flange (or clamp, etc.), and then fixed with fasteners (using bolts, rivets, etc. for positioning connection) to achieve a sealed connection.

[0099] The flexible seal 210 (membrane material, rubber, elastic sealing cloth, etc.) has a cylindrical structure (e.g., cylindrical, drum-shaped, hyperbolic drum-shaped) that can define a channel. One end of the flexible seal 210 is connected to the third mounting part 33, and the other end is connected to the fourth mounting part 34, both of which are sealed and connected by flanges (or clamps, etc.).

[0100] The fourth mounting component 34 has the same structure as the third mounting component 33 (cylindrical structure). The inner channel of the fourth mounting component 34 is connected to the channel defined by the flexible seal 210, so that the first opening 11, the third mounting component 33, the flexible seal 210 and the fourth mounting component 34 together define the air circulation channel 6. The size or weight of the fourth mounting component 34 is greater than that of the third mounting component 33, so that most of the weight of the air circulation device 3 is distributed in the fourth mounting component 34. This helps to reduce the tensile force on the membrane material of the inflatable membrane 1 (when the structure of the inflatable membrane 1 is shaken by external forces such as wind and snow load, the third mounting component 33 and the fourth mounting component 34 shake along with it due to inertial force. The inertial force of the third mounting component 33 reacts to the membrane material, which is the tensile force on the membrane material. Since the inertial force of the fourth mounting component 34 reacts to the cable 13 and the flexible seal 210, the resulting tensile force is buffered. Therefore, the tensile force on the membrane material of the inflatable membrane 1 is reduced compared with the traditional air circulation device 3), and prevents the membrane material from tearing.

[0101] Referring to Figures 9 and 10, the valve body assembly 4 includes a driver 42 (motor), several valve plates 44, a main drive component 45, and a secondary drive component 46. The valve plates 44 are located at the outlet (or inner channel) of the air circulation channel 6. The secondary drive component 46 connects to the valve plates 44 to ensure synchronous operation. The main drive component 45 connects to the secondary drive component 46. The driver 42 is located outside the air circulation channel 6 and is connected to the main drive component 45. When the driver 42 operates, it drives the main drive component 45, which in turn drives the secondary drive component 46, causing the valve plates 44 to open and air to be discharged from the air circulation channel 6, thus achieving air exchange.

[0102] Referring to Figures 9 and 10, in this embodiment, the main transmission component 45 includes a transmission shaft 451, and the secondary transmission component 46 includes a mounting shaft 461 and a linkage mechanism 462. The linkage mechanism 462 includes a connecting rod 4621, a plurality of first rotating blocks 4622 (the number of which corresponds to the number of valve plates 44), and a plurality of second rotating blocks 4623 (the number of which corresponds to the number of first rotating blocks 4622). The mounting shaft 461 is fixedly connected to the valve plates 44. One end of each first rotating block 4622 is fixedly connected to the mounting shaft 461, and the other end is rotatably connected to one end of each second rotating block 4623. The other end of each second rotating block 4623 is fixedly connected to the connecting rod 4621. The transmission shaft 451 is drive-connected to one of the mounting shafts 461.

[0103] When the driver 42 is working, the transmission shaft 451 rotates, which drives one of the mounting shafts 461 to rotate, which in turn drives the first rotating block 4622 to rotate. The second rotating block 4623 is linked with the first rotating block 4622, causing the connecting rod 4621 to move, thereby driving all the valve plates 44 to open.

[0104] In addition, the driver 42 has a housing, which can improve the protection of the driver 42 and enhance its durability.

[0105] 3. Safety limit components 5

[0106] Referring to Figures 8 and 9, the safety limiting member 5 includes a first fixing member 51, a second fixing member 52, a limiting member 53, and a safety rope 54.

[0107] The first fixing member 51 is a cross-shaped buckle, located at the intersection of the cables 13. The two intersecting cables 13 pass through the first fixing member 51, effectively preventing the first fixing member 51 from sliding. The second fixing member 52 is located on the outside of the fourth mounting member 34. The two ends of the limiting member 53 (a rope made of flexible material, such as flexible steel wire rope, nylon rope, or carbon fiber rope, which can reduce force transmission and improve the buffering effect; or a rigid support rod, which can improve the fixing effect of the fourth mounting member 34) are respectively connected to the first fixing member 51 and the second fixing member 52. When the first fixing member 51 is a cross-shaped buckle, the connection between the limiting member 53 and the first fixing member 51 can be a bolt or rivet connection, or an openable and closable retaining ring can be provided at the end of the limiting member 53. The first fixing member 51 is provided with bolts or rivets with rings, and the retaining ring is detachably connected to the rings on the bolts or rivets.

[0108] One end of the safety rope 54 is connected to the air circulation device 3 (for example, one end of the safety rope 54 is connected to the third mounting member 33; or one end of the safety rope 54 is connected to the fourth mounting member 34; or one end of the safety rope 54 is connected to the second fixing member 52; or the safety rope 54 is connected to any two or three of the third mounting member 33, the fourth mounting member 34 and the second fixing member 52), and the other end is connected to the cable 13 to prevent the air circulation device 3 from falling off.

[0109] The safety limiter 5 can effectively prevent the fourth mounting part 34 from undergoing large displacement or falling off, thus improving the safety of the air circulation device 3.

[0110] Example 4

[0111] Figures 11 to 14 illustrate an inflatable membrane structure ambient air circulation system for valve body assembly 4 that differs from that of Embodiment 3.

[0112] 1. Valve body assembly 4

[0113] Referring to Figures 11 to 14, the valve body assembly 4 includes an actuator 42, a plurality of valve plates 44 capable of closing the air circulation passage 6, a main drive member 45 for connecting the actuator 42, and a secondary drive member 46 for connecting the valve plates 44 and the main drive member 45.

[0114] In this embodiment, the main transmission component 45 includes a transmission shaft 451. The secondary transmission component 46 includes a drive gear 463, a driven gear 464, and a rack 465, wherein the drive gear includes a first drive gear 4631 and a second drive gear 4632.

[0115] The driver 42 is located on the outside of the fourth mounting member 34, and one end of the drive shaft 451 is connected to the driver 42, while the other end extends through the fourth mounting member 34 into the air circulation channel 6.

[0116] The first drive gear 4631 connects to the portion of the drive shaft 451 extending into the fourth mounting member 34. The second drive gear 4632 is an annular guide rail disposed on the inner wall of the fourth mounting member 34. The outer teeth of the first drive gear 4631 mesh with the inner teeth of the second drive gear 4632, so that the first drive gear 4631 drives the second drive gear 4632. A plurality of driven gears 464 are mounted on the inner wall of the fourth mounting member 34 via shafts, and the outer teeth of the driven gears 464 mesh with the inner teeth of the second drive gears 4632.

[0117] The fourth mounting component 34 is provided with a groove, in which the rack 465 is movably disposed and meshes with the driven gear 464. The valve plate 44 is fixedly connected to the rack 465.

[0118] When the driver 42 is working, it drives the transmission shaft 451 to rotate, which in turn drives the first drive gear 4631 to rotate. The second drive gear 4632 rotates synchronously, and several driven gears 464 rotate under the drive of the second drive gear 4632, so that the rack 465 slides in the groove and the valve plate 44 moves to open.

[0119] By optimizing the structure of the valve body assembly 4, the opening and closing efficiency of the air circulation device 3 is improved, thereby increasing the air circulation efficiency.

[0120] Referring to Figures 11 and 12, the first fixing member 51 is a four-way retainer. When the first fixing member 51 is a four-way retainer, a ring can be provided on the four-way retainer, and then connected through the retaining ring provided at the end of the limiting member 53.

[0121] The above description is only a preferred embodiment of this embodiment and is not intended to limit this embodiment. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this embodiment should be included within the protection scope of this embodiment.

Claims

1. An inflatable membrane structure ambient air circulation system, characterized in that, include: An inflatable membrane (1) is provided with a first opening (11) that connects its inner and outer spaces; At least one air circulation device (3) is disposed on the inner side of the inflatable membrane (1) facing the internal space of the inflatable membrane (1) and is sealed to the inflatable membrane (1) by means of a connector (2); and / or disposed on the outer side of the inflatable membrane (1) facing the outside and is sealed to the inflatable membrane (1) by means of the connector (2); the air circulation device (3) is internally connected to the first opening (11), wherein the first opening (11) and the air circulation device (3) together define an air circulation channel (6), and the air circulation device (3) is provided with a valve assembly (4) for controlling the opening and closing of the air circulation channel (6).

2. The inflatable membrane structure ambient air circulation system according to claim 1, characterized in that, The air circulation device (3) is located inside the inflatable membrane (1) facing the internal space of the inflatable membrane (1). The connector (2) includes a first connector (220), a second connector (221) and a third connector (222). The first connector (220) is located in the air circulation device (3). The second connector (221) cooperates with the first connector (220) to clamp the inflatable membrane (1). The portion of the inflatable membrane (1) located between the first connector (220) and the second connector (221) has a plurality of folded layers (223). The third connector (222) connects the first connector (220), the second connector (221) and the folded layers (223) so that the first connector (220), the second connector (221) and the folded layers (223) are relatively fixed.

3. The inflatable membrane structure ambient air circulation system according to claim 1, characterized in that, The air circulation device (3) is located on the outside of the inflatable membrane (1) facing outwards. The connector (2) includes a flexible seal (210) that can be bent and deformed. The flexible seal (210) surrounds the first opening (11). One end of the flexible seal (210) is sealed to the inflatable membrane (1), and the other end is sealed to the air circulation device (3) through a sealing clamping structure. When the air circulation device (3) and the inflatable membrane (1) are relatively displaced, the flexible seal (210) can be stretched and deformed to avoid tearing of the inflatable membrane (1).

4. The inflatable membrane structure ambient air circulation system according to claim 3, characterized in that, The air circulation device (3) further includes a first mounting member (31) and a second mounting member (32). The other end of the flexible seal (210) includes a bendable first connecting portion (211). The first mounting member (31) and the second mounting member (32) fix the first connecting portion (211) through the sealing clamping structure. The sealing clamping structure includes: The first bent portion (311) or the first arc-shaped portion on the outer side of the first mounting member (31); The second bent portion (321) or the second arc-shaped portion inside the second mounting member (32); The first bent portion (311) and the second bent portion (321) are engaged, and the first arc-shaped portion and the second arc-shaped portion are engaged to increase the clamping contact area of ​​the first connecting portion (211).

5. The inflatable membrane structure ambient air circulation system according to claim 4, characterized in that, The flexible seal (210) also includes a second connecting part (212) for disassembling itself, so that the flexible seal (210) can be disconnected under stress limit to protect the air-filled membrane (1).

6. The inflatable membrane structure ambient air circulation system according to claim 4, characterized in that, The first connecting part (211) includes a limiting mounting part (213), which is used to limit the relative displacement between the first connecting part (211) and the first mounting member (31) and the second mounting member (32); Wherein, the limiting mounting part (213) is a rolled edge located at the end of the first connecting part (211), and a limiting mounting member (214) is provided on the inner side of the rolled edge; or the limiting mounting part (213) is a thickened layer located at the end of the first connecting part (211), and the thickness of the thickened layer is greater than the distance between the first mounting member (31) and the second mounting member (32).

7. The inflatable membrane structure ambient air circulation system according to claim 6, characterized in that, The limiting mounting part (213) is located on the outside of the first mounting member (31) and / or the second mounting member (32). The first connecting part (211) also includes a fixing mounting part (215). The fixing mounting part (215) is close to the wall surface of the first mounting member (31) and / or the second mounting member (32) and is fixed by a fixing mounting part (216). The fixing mounting part (216) can increase the fixing area of ​​the fixing mounting part (215).

8. The inflatable membrane structure ambient air circulation system according to claim 1, characterized in that, The air circulation device (3) is located on the outside of the inflatable membrane (1) facing the outside. The connector (2) includes a flexible seal (210) that can be bent and deformed. The air circulation device (3) includes a third mounting member (33) located on the inflatable membrane (1) and surrounding the first opening (11), and a fourth mounting member (34) connected to the third mounting member (33) through the flexible seal (210). The air circulation device (3) is provided with a second opening (35) for connecting the air circulation channel (6) and the outside. The second opening (35) is located on the fourth mounting member (34). The valve body assembly (4) is located on the fourth mounting member (34).

9. The inflatable membrane structure ambient air circulation system according to claim 4, characterized in that, Also includes: Cable (13), said cable (13) being arranged on the outside of the inflatable membrane (1); The air circulation device (3) is connected to the cable (13) via a safety limiting member (5).

10. The inflatable membrane structure ambient air circulation system according to claim 1, characterized in that, The valve body assembly (4) includes a driver (42), a plurality of valve plates (44) capable of closing the air circulation channel (6), a main drive member (45) for connecting the driver (42), and a secondary drive member (46) for connecting the valve plates (44) and the main drive member (45), wherein the driver (42) is capable of driving the main drive member (45) to drive the valve plates (44) through the secondary drive member (46), thereby opening or closing the air circulation channel (6).

11. The inflatable membrane structure ambient air circulation system according to claim 10, characterized in that, The main transmission component (45) includes a transmission shaft (451), and the secondary transmission component (46) includes a mounting shaft (461) and a linkage mechanism (462). The valve plate (44) is rotatably disposed in the air circulation channel (6) via the mounting shaft (461). The plurality of valve plates (44) are arranged along the exhaust direction perpendicular to the air circulation channel (6). The transmission shaft (451) connects the mounting shaft (461) and the driver (42). The plurality of valve plates (44) are connected by the linkage mechanism (462) to realize the synchronous flipping movement of the plurality of valve plates (44).

12. The inflatable membrane structure ambient air circulation system according to claim 10, characterized in that, The main transmission component (45) includes a transmission shaft (451), and the secondary transmission component (46) includes a drive gear (463), a driven gear (464), and a rack (465). The valve plate (44) is movably disposed in the air circulation channel (6) via the rack (465). The plurality of valve plates (44) are arranged circumferentially around the central axis of the air circulation channel (6). The driven gear (464) is connected to the rack (465), and the plurality of driven gears (464) mesh with the drive gear (463). The transmission shaft (451) is connected to the drive gear (463) to realize the above-mentioned... The dry valve plate (44) moves synchronously toward or away from the central axis. The drive gear (463) includes a first drive gear (4631) and a second drive gear (4632). The first drive gear (4631) is located on the transmission shaft (451). The second drive gear (4632) is an annular gear with teeth located on the inner or outer ring. The first drive gear (4631) meshes with the second drive gear (4632). A plurality of driven gears (464) mesh with the second drive gear (4632) and are arranged around the inner or outer side of the second drive gear (4632).

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