Air curtain snow removal system and method

Abstract

The application relates to an air film snow removing system, which comprises a snow removing assembly, a snow removing cable, rolling bodies and snow removing workpieces; the snow removing cable crosses the air film in the transverse direction; the rolling bodies are rotatably installed on the snow removing cable and are pressed on the air film, so that the snow removing cable is suspended above the air film; the snow removing workpieces are installed on the snow removing cable and are used for scraping off the snow on the surface of the air film when moving; two groups of first traction assemblies are installed on the two sides of the air film respectively, and the two groups of first traction assemblies are connected with the two ends of the snow removing cable respectively, and are used for pulling the snow removing cable to move in the longitudinal direction. The application can improve the snow removing effect on the surface of the air film.

Description

Technical Field

[0001] This application relates to the field of air-supported membrane snow removal technology, and in particular to an air-supported membrane snow removal system and method. Background Technology

[0002] Air-supported membrane structures are widely used in the construction of various venues, factories, and warehouses. They rely on air supply and pressurization fans to blow air into the membrane structure, raising the membrane surface and cable net to form a stable, sealed space. The air pressure inside the membrane structure supports the weight of the cable net and various external loads acting on the membrane surface. Snow load, as an external load that limits the application of air-supported membrane structures, can easily cause damage or collapse of the membrane structure due to excessive snow accumulation.

[0003] To address the problem of snow accumulation on air-supported membrane structures, various snow removal solutions have been proposed in existing technologies. However, these solutions are not perfect and suffer from poor snow removal efficiency. For example, utility model patent No. 202222082678.1 discloses a snow removal device for the roof of an air-supported membrane structure, which uses a snow scraper rope moving across the membrane surface for snow removal. However, the surface of the air-supported membrane is not actually a smooth plane, but rather has a large number of air-supported membrane steel cables. If the snow scraper rope is in direct contact with the air-supported membrane surface for snow scraping, significant resistance will be generated between it and the air-supported membrane steel cables during movement, causing difficulty in movement and even damage to the steel cables or the membrane surface. If the snow scraper rope is suspended on the air-supported membrane surface, it will be unable to remove the snow accumulated on the surface of the air-supported membrane. Therefore, both approaches result in poor snow removal efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide an air-supported film snow removal system and method, the specific technical solution of which is as follows.

[0005] An air-supported film snow removal system includes:

[0006] The snow scraping assembly includes a snow scraping cable, rolling elements, and snow scraping components; the snow scraping cable spans an air film in a transverse direction; multiple rolling elements are rotatably mounted on the snow scraping cable and pressed against the air film, so that the snow scraping cable is suspended above the air film; multiple snow scraping components are mounted on the snow scraping cable and pressed against the air film for scraping snow off the surface of the air film during movement.

[0007] Two sets of first traction components are installed on both sides of the air membrane, and the two sets of first traction components are connected to both ends of the snow scraping cable to pull the snow scraping cable to move in the longitudinal direction.

[0008] Furthermore, it also includes a second traction assembly, the second traction assembly comprising:

[0009] The traction rope is arranged longitudinally in the middle of the air film and is connected to the middle position of the snow scraping cable.

[0010] The second traction device is connected to the traction rope and drives the traction rope to move in the longitudinal direction.

[0011] Limiting components are installed at the end of the air membrane to prevent the snow scraping cable from moving longitudinally; and limiting components are provided on both sides of the traction rope.

[0012] Furthermore, the second traction assembly also includes a guide device, the guide device comprising:

[0013] Multiple non-powered rollers are arranged longitudinally and installed in the middle of the air membrane to support the traction rope;

[0014] At least two positioning elements are respectively arranged at both ends of the air membrane; the positioning elements include a mounting base, a roller and a U-shaped limiting plate; the mounting base is mounted on the air membrane, the roller is rotatably mounted on the mounting base, the U-shaped limiting plate is mounted on the mounting base and surrounds the roller to form a limiting hole, and the traction rope passes through the limiting hole.

[0015] Furthermore, the limiting component includes a mounting plate, a mounting buckle, and a limiting post; the mounting buckle is installed at the bottom of the mounting plate and fastens to the steel cable on the air film surface; the limiting post is installed at the top of the mounting plate to restrict the snow scraping cable from moving in the longitudinal direction.

[0016] Furthermore, the snow scraping workpiece includes a main body and snow scraping blades; the main body is provided with a first mounting hole for accommodating a snow scraping cable through which to pass; at least two snow scraping blades are connected to the main body and arranged around the axis of the first mounting hole.

[0017] Furthermore, the snow scraper workpiece includes two sub-parts symmetrically arranged along the plane containing the axis of the first mounting hole, and a connecting bolt. Each sub-part includes multiple snow scraper blades, and a groove is formed between two snow scraper blades. The groove is provided with a through hole that penetrates the sub-part in the radial direction. The connecting bolt passes through the through hole and connects the two sub-parts.

[0018] Furthermore, the snow scraping workpiece includes a connecting rod, at least two snow scraping rods, and a connecting portion; the connecting rod and the snow scraping rods are arranged in a circumferential array; the connecting portion is connected to the connecting rod and the snow scraping rods respectively, and the connecting rod is provided with a second mounting hole for accommodating the passage of the snow scraping cable.

[0019] Furthermore, the connecting portion includes an arc-shaped transition surface recessed toward the center of the connecting portion, the arc-shaped transition surface being located between the two snow scraper bars or between the snow scraper bar and the connecting bar.

[0020] Furthermore, the rolling elements and snow-scraping workpieces are arranged alternately at intervals, and one or more snow-scraping workpieces are provided between two adjacent rolling elements.

[0021] A method for snow removal using the above-mentioned air-supported film snow removal system includes the following steps:

[0022] Snow removal in the middle section of the air-supported membrane structure: First, start the second traction component. After the second traction component drives the snow scraping component to move to a preset displacement, start the two sets of first traction components. This will keep the first traction component and the second traction component moving synchronously, and make the snow scraping cable appear as a U-shape or V-shape convex in the direction of forward movement when viewed from above.

[0023] Snow removal at the end of the air film: When the snow wiper cable moves to the point of contact with the limiting component, the first traction component stops moving, and the second traction component drives the snow wiper cable to continue moving, so that the snow wiper cable is M-shaped when viewed from above.

[0024] Beneficial effects: 1. The air-film snow removal system provided by the present invention supports the snow-scraping cable with rolling elements, so that the rolling elements roll on the surface of the air film during the movement of the snow-scraping cable, avoiding friction between the snow-scraping cable and the air film and steel cable, ensuring smooth movement of the snow-scraping cable and protecting the air film and steel cable; at the same time, multiple snow-scraping workpieces are used to scrape the snow on the surface of the air film as the snow-scraping cable moves; thereby improving the snow removal effect.

[0025] 2. The air-supported membrane snow removal system provided by the present invention limits the snow-scraping cable by a limiting member when removing snow at the end of the air-supported membrane, so that the snow-scraping cable forms a special shape and angle, preventing the snow-scraping cable from detaching from the air-supported membrane and effectively scraping away the snow accumulation at the end of the air-supported membrane.

[0026] 3. The air-supported membrane snow removal method provided by the present invention takes into account both the middle section and the ends of the air-supported membrane, thereby improving the overall snow removal effect of the air-supported membrane. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a snow removal system performing snow removal on the middle section of the air-supported membrane structure.

[0029] Figure 2 This is a partial schematic diagram of the snow scraper assembly;

[0030] Figure 3 This is a cross-sectional view of the first traction assembly;

[0031] Figure 4 This is a structural schematic diagram of the limiting component;

[0032] Figure 5 One of the schematic diagrams showing the snow scraper assembly moving to the end of the air film;

[0033] Figure 6 The second schematic diagram shows the snow scraper assembly moving to the end of the air film.

[0034] Figure 7 A simplified diagram of a non-powered roller;

[0035] Figure 8 This is a schematic diagram of the positioning component;

[0036] Figure 9 This is a schematic diagram of the first type of snow scraper;

[0037] Figure 10 This is a schematic diagram of the sub-parts;

[0038] Figure 11 This is one of the schematic diagrams showing the state of the second type of snow scraping workpiece;

[0039] Figure 12 This is the second schematic diagram of the state of the second type of snow scraping workpiece.

[0040] Explanation of reference numerals in the attached drawings: 1. Snow scraping assembly; 2. First traction assembly; 3. Second traction assembly; 4. Middle section of the air film; 5. End of the air film;

[0041] 11. Snow scraper cable; 12. Rolling element; 13. Snow scraper workpiece;

[0042] 131. Main body; 132. Snow scraper blade; 133. Sub-part; 134. Connecting rod; 135. Snow scraper bar; 136. Connecting part;

[0043] 1311, First mounting hole; 1312, Annular protrusion;

[0044] 1331. Groove; 1332. Through hole; 1333. Connecting groove; 1334. Anti-slip rib;

[0045] 1341. Second mounting hole;

[0046] 1361. Arc-shaped transition surface;

[0047] 21. Traction rail; 22. Traction vehicle;

[0048] 31. Traction rope; 32. Second winch; 33. Third winch; 34. Limiting device; 35. Non-powered roller; 36. Positioning device;

[0049] 341. Mounting plate; 342. Mounting buckle; 343. Limiting post;

[0050] 351. Bearing housing; 352. Roller;

[0051] 361. Mounting base; 362. U-shaped limiting piece; 363. Roller; 364. Limiting hole. Detailed Implementation

[0052] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0053] In the description of this application, 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", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 application.

[0054] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0058] Example 1

[0059] Reference Figure 1 As shown, this embodiment provides an air-supported film snow removal system, including a snow-scraping assembly 1, two sets of first traction assemblies 2, and one set of second traction assemblies 3. (Refer to...) Figure 1 and 2 As shown, the snow-scraping assembly 1 includes a snow-scraping cable 11, rolling elements 12, and snow-scraping workpieces 13. In this embodiment, the length direction of the air film is defined as the longitudinal direction, and the width direction of the air film is defined as the transverse direction. The snow-scraping cable 11 spans the air film in the transverse direction. Multiple rolling elements 12 are rotatably mounted on the snow-scraping cable 11 and press against the air film, so that the snow-scraping cable 11 is suspended above the air film, avoiding interference between the snow-scraping cable 11 and the surface of the air film and the steel cable during movement. When the snow-scraping cable 11 moves along the longitudinal direction of the air film, the rolling elements 12 roll on the surface of the air film, enabling the snow-scraping cable 11 to move smoothly. Multiple snow-scraping workpieces 13 are mounted on the snow-scraping cable 11 and are used to scrape the snow accumulated on the surface of the air film during movement. The diameter of the snow scraper 13 is smaller than that of the rolling element 12, so that the snow scraper 13 contacts the snow but is separated from the air film surface, thus avoiding damage to the steel cable or film surface during movement. It should be noted that, since the snow scraper 13 has a certain weight, a very small number of snow scraper 13 may come into contact with the air film surface under the action of gravity. However, with the support of the snow scraper cable 11 and the rolling element 12, these very small snow scraper 13 have little impact on the air film surface or steel cable.

[0060] Specifically, the snow scraping workpiece 13 and the rolling body 12 are arranged alternately, and multiple snow scraping workpieces 13 are provided between adjacent rolling bodies 12. Since the air film surface is arched, multiple snow scraping workpieces 13 can better adapt to the shape of the air film, and multiple rolling bodies 12 can better support the snow scraping cable 11, so that the multiple snow scraping workpieces 13 have better adhesion to the air film surface and improve the snow removal effect.

[0061] Specifically, the rolling element 12 is spherical, reducing the contact area between the rolling element 12 and the air film and steel cable. The snow scraping cable 11 passes through the center of the rolling element 12 and is tumblingly connected to it. It should be noted that in this embodiment, different installation methods can be selected depending on the material of the rolling element 12. For example, when the rolling element 12 is made of stainless steel, the snow scraping cable 11 is connected to the rolling element 12 through a bearing, allowing the rolling element 12 to rotate smoothly and preventing the rolling element 12 from shifting on the snow scraping cable 11. When the rolling element 12 is made of plastic, the snow scraping cable 11 can also be directly passed through the rolling element 12 and tumblingly connected to it.

[0062] Continue to refer to Figure 1 As shown, the two first traction components 2 are respectively installed on both sides of the air film, and the two sets of first traction components 2 are respectively connected to both ends of the snow scraping cable 11, which is used to pull the snow scraping cable 11 to move in the longitudinal direction. By driving the snow scraping cable 11 to move, the snow on the surface of the air film is scraped away.

[0063] Specifically, refer to Figure 3 As shown, the first traction assembly 2 includes a first winch, a traction rail 21, and a traction vehicle 22. The end of the snow scraping cable 11 is fixed to the traction vehicle 22. The traction vehicle 22 is installed on the traction rail 21. The first winch is connected to the traction vehicle 22, thereby driving the traction vehicle 22 to move along the traction rail 21.

[0064] Continue to refer to Figure 1 As shown, the second traction assembly 3 includes a traction rope 31, a second traction device, a limiting member 34, and a guiding device. The traction rope 31 is positioned at the center of the air-supported membrane and extends along its longitudinal direction, and is connected to the center of the snow-scraping cable 11. The second traction device includes a second winch 32 and a third winch 33, which are respectively positioned at both ends of the air-supported membrane along its length, and are connected to the traction rope 31 to drive the traction rope 31 to move along the longitudinal direction of the air-supported membrane.

[0065] Multiple limiting members 34 are respectively installed at the ends of the air film to prevent the snow-scraping cable 11 from moving longitudinally, and limiting members 34 are respectively provided on both sides of the traction rope 31. Specifically, refer to Figure 4As shown, the limiting member 34 includes a mounting plate 341, a mounting buckle 342, and a limiting post 343. The mounting buckle 342 is installed at the bottom of the mounting plate 341 and fastens to the steel cable on the air film surface. The limiting post 343 is installed at the top of the mounting plate 341 and is used to restrict the movement of the snow scraper cable 11 in the longitudinal direction. When the snow scraper cable 11 moves to abut against the limiting post 343, the limiting post 343 prevents the snow scraper cable 11 from continuing to move, thereby preventing the snow scraper assembly 1 from detaching from the air film.

[0066] It should be noted that, continue to refer to Figure 1 As shown, the air-supported membrane includes a middle section 4 and an end section 5. The middle section 4 is a continuous arched structure with an arc-shaped cross-section. When the snow-scraping assembly 1 moves in the middle section 4, it can be tensioned under the support of the middle section 4. The end section 5 is a curved structure, which forms an inclined structure along the longitudinal direction of the air-supported membrane. When the snow-scraping assembly 1 moves to the end section 5, since the length of the snow-scraping assembly 1 remains unchanged, the height of the curved structure at the end section 5 decreases, making it unable to continue supporting the snow-scraping assembly 1. Under the action of gravity, the snow-scraping assembly 1 easily slips off the end section 5. Therefore, the snow-scraping cable 11 is limited by the limiting member 34, and then the second traction device continues to drive the snow-scraping cable 11 to move, so that the snow-scraping cable 11 is in an M-shape, as shown in the figure. Figure 5 As shown, the snow scraper cable 11 is kept taut, and during the continuous drive of the second traction device, the inclination of the middle part of the snow scraper cable 11 gradually increases, and its state moves to the point where... Figure 6 As shown, this effectively removes snow from the end 5 of the air film. This prevents the snow scraper cable 11 from detaching from the air film and also improves the snow removal effect at the end 5 of the air film.

[0067] Specifically, continue to refer to Figure 1 As shown, the guiding device includes multiple unpowered rollers 35 and at least two positioning members. The multiple unpowered rollers 35 are installed in the middle of the air membrane along the longitudinal direction of the air membrane to support the traction rope 31. The two positioning members are respectively installed at both ends of the air membrane to limit the movement of the traction rope 31. (Refer to...) Figure 7 As shown, the unpowered roller 35 includes two bearing seats 351 and rollers 352 rotatably connected to the two bearing seats 351 respectively. The bearing seats 351 are connected to the steel cable of the air film via a locking buckle. (Refer to...) Figure 8 As shown, the positioning component includes a mounting base 361, a roller 363, and a U-shaped limiting piece 362; the mounting base 361 is mounted on the air film, the roller 363 is rotatably mounted on the mounting base 361, the U-shaped limiting piece 362 is mounted on the mounting base 361 and surrounds the roller 363 to form a limiting hole 364, and the traction rope 31 passes through the limiting hole 364.

[0068] Specifically, this embodiment provides two types of snow scraping workpieces 13.

[0069] Reference Figure 9 As shown, the first type of snow-scraping workpiece 13 includes a main body 131 and snow-scraping blades 132. The main body 131 has a first mounting hole 1311 for accommodating the snow-scraping cable 11. Six snow-scraping blades 132 are connected to the main body 131 and arranged at equal angles around the axis of the first mounting hole 1311. The ends of the snow-scraping blades 132 away from the first mounting hole 1311 are arc-shaped. During the movement of the snow-scraping assembly 1, the snow-scraping blades 132 are inserted into the snow and scrape it away. By arranging the six snow-scraping blades 132 at equal angles around the axis of the first mounting hole 1311, if the snow-scraping workpiece 13 rolls during the movement of the snow-scraping assembly 1, the other snow-scraping blades 132 can also be inserted into the snow to scrape it away.

[0070] To facilitate the installation of the snow scraper component 13 and the snow scraper cable 11, the snow scraper component 13 is divided into two sub-parts 133 symmetrically arranged along the plane containing the axis of the first mounting hole 1311, and a connecting bolt; see reference Figure 10 As shown, the sub-part 133 includes three snow-wiping blades 132 arranged at equal angles, and a groove 1331 is formed between two snow-wiping blades 132. The groove 1331 has a through hole 1332 that penetrates the sub-part 133 in a radial direction. The connecting bolt passes through the through hole 1332 and connects the two sub-parts 133. It should be noted that in this embodiment, the number of snow-wiping blades 132 is preferably six, and the number of snow-wiping blades 132 in each sub-part is three. The arrangement is preferably an equal-angle arrangement around the axis of the first mounting hole 1311. In other embodiments, the number of snow-wiping blades 132 can be more or less, and their arrangement can also be a non-equal-angle arrangement around the axis of the first mounting hole 1311.

[0071] Two sub-parts 133 form semi-cylindrical connecting grooves 1333 on the side away from the snow-wiping blade 132. After the two sub-parts 133 are connected by bolts, the two connecting grooves 1333 form the first mounting hole 1311, thereby connecting with the snow-wiping cable 11. In order to minimize the displacement and rolling of the snow-wiping workpiece 13 along the length direction of the snow-wiping cable 11, multiple anti-slip ribs 1334 are provided in the connecting grooves 1333 to increase the friction between the snow-wiping workpiece 13 and the snow-wiping cable 11. In order to avoid interference between two adjacent snow-wiping workpieces 13, an annular protrusion 1312 is provided at the end of the main body 131.

[0072] Reference Figure 11As shown, the second type of snow scraper 13 includes a connecting rod 134, two snow scraper bars 135, and a connecting portion 136; the connecting rod 134 and the snow scraper bars 135 are arranged in a circumferential array; the connecting portion 136 is connected to the connecting rod 134 and the snow scraper bars 135 respectively, and the connecting rod 134 is provided with a second mounting hole 1341 for accommodating the passage of the snow scraper cable 11; the connecting portion 136 includes an arc-shaped transition surface 1361 recessed towards the center of the connecting portion 136, the arc-shaped transition surface 1361 being located between the two snow scraper bars 135 or between the snow scraper bars 135 and the connecting rod 134. When the snow scraper assembly 1 moves in the first direction, the snow scraper 13... Figure 11 As shown, the snow scraper arm 135 is inserted into the snow to scrape it away. When the snow scraper assembly 1 moves in the direction of the direction of the snow scraper, the snow scraper workpiece 13 rotates 180 degrees under the action of the snow resistance, forming a shape as shown. Figure 12 The state shown is such that the first direction is opposite to the second direction, so that the snow scraper 13 can effectively scrape away snow during reciprocating motion.

[0073] Example 2

[0074] This embodiment provides a method for snow removal using the air-film snow removal system described in Embodiment 1, which includes snow removal of the middle section 4 of the air-film system and snow removal of the end section 5 of the air-film system.

[0075] When clearing snow from the middle section 4 of the air-supported membrane structure: first activate the second traction component 3. After the second traction component 3 drives the snow-scraping component 1 to move a preset displacement, activate the two sets of first traction components 2, so that the first traction components 2 and the second traction components 3 move synchronously, and the snow-scraping cable, viewed from above, presents a U-shape or V-shape convex in the direction of travel; its state is as follows. Figure 1 As shown.

[0076] When clearing snow from the air film end 5, after the snow wiper cable moves to abut against the limiting member 34, the first traction component 2 stops moving, and the second traction component 3 drives the snow wiper cable to continue moving, causing the snow wiper cable to form an M-shape when viewed from above. The second traction component 3 continuously drives the snow wiper cable 11 to move, causing the slope of the middle part of the snow wiper cable 11 to gradually increase, as shown in the image. Figure 5 and Figure 6 As shown.

[0077] This embodiment takes into account both the middle section 4 and the end section 5 of the air-supported membrane, thus improving the overall snow removal effect of the air-supported membrane.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An air-supported film snow removal system, characterized in that, include: A snow-scraping assembly includes a snow-scraping cable, rolling elements, and snow-scraping components; the snow-scraping cable spans an air film in a transverse direction; multiple rolling elements are rotatably mounted on the snow-scraping cable and pressed against the air film, so that the snow-scraping cable is suspended above the air film; multiple snow-scraping components are mounted on the snow-scraping cable for scraping snow off the surface of the air film during movement. Two sets of first traction components are installed on both sides of the air membrane, and the two sets of first traction components are connected to both ends of the snow scraping cable, which are used to pull the snow scraping cable to move in the longitudinal direction. The second traction assembly includes a traction rope, a second traction device, a limiting member, and a guiding device. The traction rope is arranged longitudinally in the middle of the air-supported membrane and is connected to the middle position of the snow-scraping cable. The second traction device is connected to the traction rope and drives the traction rope to move longitudinally. The limiting member is installed at the end of the air-supported membrane to prevent the snow-scraping cable from moving longitudinally. Limiting members are provided on both sides of the traction rope. The guiding device includes multiple unpowered rollers and at least two positioning members. The multiple unpowered rollers are arranged longitudinally and installed in the middle position of the air-supported membrane to support the traction rope. The two positioning members are respectively arranged at both ends of the air-supported membrane.

2. The air curtain snow removal system of claim 1, wherein, The positioning component includes a mounting base, a roller, and a U-shaped limiting plate; the mounting base is mounted on the air film, the roller is rotatably mounted on the mounting base, the U-shaped limiting plate is mounted on the mounting base and surrounds the roller to form a limiting hole, and the traction rope passes through the limiting hole.

3. The air curtain snow removal system of claim 1, wherein, The limiting component includes a mounting plate, a mounting buckle, and a limiting post; the mounting buckle is installed at the bottom of the mounting plate and fastens to the steel cable on the air film surface; the limiting post is installed at the top of the mounting plate to restrict the snow scraping cable from moving in the longitudinal direction.

4. The air curtain snow removal system of claim 1, wherein, The snow scraping workpiece includes a main body and snow scraping blades; the main body is provided with a first mounting hole for accommodating a snow scraping cable; at least two snow scraping blades are connected to the main body and arranged around the axis of the first mounting hole.

5. The air membrane snow removal system of claim 4, wherein, The snow scraper workpiece includes two sub-parts symmetrically arranged along the plane containing the axis of the first mounting hole, and a connecting bolt. Each sub-part includes multiple snow scraper blades, and a groove is formed between two adjacent snow scraper blades. The groove is provided with a through hole that penetrates the sub-part in the radial direction. The connecting bolt passes through the through hole and connects the two sub-parts.

6. The air membrane snow removal system of claim 1, wherein, The snow scraping component includes a connecting rod, at least two snow scraping rods, and a connecting part; the connecting rod and the snow scraping rods are arranged in a circumferential array; the connecting part is connected to the connecting rod and the snow scraping rods respectively, and the connecting rod is provided with a second mounting hole for accommodating the passage of the snow scraping cable.

7. An air curtain snow removal system as claimed in claim 6, wherein, The connecting portion includes an arc-shaped transition surface recessed toward the center of the connecting portion, the arc-shaped transition surface being located between the two snow scraper bars or between the snow scraper bar and the connecting bar.

8. The air membrane snow removal system of claim 1, wherein, The rolling elements and snow scraping workpieces are arranged alternately at intervals, and one or more snow scraping workpieces are provided between two adjacent rolling elements.

9. A method of air membrane snow removal using the air membrane snow removal system of claim 1, wherein, Includes the following steps: Snow removal in the middle section of the air-supported membrane structure: First, start the second traction component. After the second traction component drives the snow scraping component to move to a preset displacement, start the two sets of first traction components. This will keep the first traction component and the second traction component moving synchronously, and make the snow scraping cable appear as a U-shape or V-shape convex in the direction of forward movement when viewed from above. Snow removing at the end of the air film: when the snow removing rope moves to abut against the limiting member, the first traction assembly stops moving, the second traction assembly drives the snow removing rope to continue moving, and the plan view of the snow removing rope is in the shape of M.

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